Loading...
1#ifndef __NET_CFG80211_H
2#define __NET_CFG80211_H
3/*
4 * 802.11 device and configuration interface
5 *
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2014 Intel Mobile Communications GmbH
8 * Copyright 2015-2017 Intel Deutschland GmbH
9 * Copyright (C) 2018 Intel Corporation
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#include <linux/netdevice.h>
17#include <linux/debugfs.h>
18#include <linux/list.h>
19#include <linux/bug.h>
20#include <linux/netlink.h>
21#include <linux/skbuff.h>
22#include <linux/nl80211.h>
23#include <linux/if_ether.h>
24#include <linux/ieee80211.h>
25#include <linux/net.h>
26#include <net/regulatory.h>
27
28/**
29 * DOC: Introduction
30 *
31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
32 * userspace and drivers, and offers some utility functionality associated
33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
34 * by all modern wireless drivers in Linux, so that they offer a consistent
35 * API through nl80211. For backward compatibility, cfg80211 also offers
36 * wireless extensions to userspace, but hides them from drivers completely.
37 *
38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
39 * use restrictions.
40 */
41
42
43/**
44 * DOC: Device registration
45 *
46 * In order for a driver to use cfg80211, it must register the hardware device
47 * with cfg80211. This happens through a number of hardware capability structs
48 * described below.
49 *
50 * The fundamental structure for each device is the 'wiphy', of which each
51 * instance describes a physical wireless device connected to the system. Each
52 * such wiphy can have zero, one, or many virtual interfaces associated with
53 * it, which need to be identified as such by pointing the network interface's
54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
55 * the wireless part of the interface, normally this struct is embedded in the
56 * network interface's private data area. Drivers can optionally allow creating
57 * or destroying virtual interfaces on the fly, but without at least one or the
58 * ability to create some the wireless device isn't useful.
59 *
60 * Each wiphy structure contains device capability information, and also has
61 * a pointer to the various operations the driver offers. The definitions and
62 * structures here describe these capabilities in detail.
63 */
64
65struct wiphy;
66
67/*
68 * wireless hardware capability structures
69 */
70
71/**
72 * enum ieee80211_channel_flags - channel flags
73 *
74 * Channel flags set by the regulatory control code.
75 *
76 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
77 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
78 * sending probe requests or beaconing.
79 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
80 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
81 * is not permitted.
82 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
83 * is not permitted.
84 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
85 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
86 * this flag indicates that an 80 MHz channel cannot use this
87 * channel as the control or any of the secondary channels.
88 * This may be due to the driver or due to regulatory bandwidth
89 * restrictions.
90 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
91 * this flag indicates that an 160 MHz channel cannot use this
92 * channel as the control or any of the secondary channels.
93 * This may be due to the driver or due to regulatory bandwidth
94 * restrictions.
95 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
96 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
97 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
98 * on this channel.
99 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
100 * on this channel.
101 *
102 */
103enum ieee80211_channel_flags {
104 IEEE80211_CHAN_DISABLED = 1<<0,
105 IEEE80211_CHAN_NO_IR = 1<<1,
106 /* hole at 1<<2 */
107 IEEE80211_CHAN_RADAR = 1<<3,
108 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
109 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
110 IEEE80211_CHAN_NO_OFDM = 1<<6,
111 IEEE80211_CHAN_NO_80MHZ = 1<<7,
112 IEEE80211_CHAN_NO_160MHZ = 1<<8,
113 IEEE80211_CHAN_INDOOR_ONLY = 1<<9,
114 IEEE80211_CHAN_IR_CONCURRENT = 1<<10,
115 IEEE80211_CHAN_NO_20MHZ = 1<<11,
116 IEEE80211_CHAN_NO_10MHZ = 1<<12,
117};
118
119#define IEEE80211_CHAN_NO_HT40 \
120 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
121
122#define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
123#define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
124
125/**
126 * struct ieee80211_channel - channel definition
127 *
128 * This structure describes a single channel for use
129 * with cfg80211.
130 *
131 * @center_freq: center frequency in MHz
132 * @hw_value: hardware-specific value for the channel
133 * @flags: channel flags from &enum ieee80211_channel_flags.
134 * @orig_flags: channel flags at registration time, used by regulatory
135 * code to support devices with additional restrictions
136 * @band: band this channel belongs to.
137 * @max_antenna_gain: maximum antenna gain in dBi
138 * @max_power: maximum transmission power (in dBm)
139 * @max_reg_power: maximum regulatory transmission power (in dBm)
140 * @beacon_found: helper to regulatory code to indicate when a beacon
141 * has been found on this channel. Use regulatory_hint_found_beacon()
142 * to enable this, this is useful only on 5 GHz band.
143 * @orig_mag: internal use
144 * @orig_mpwr: internal use
145 * @dfs_state: current state of this channel. Only relevant if radar is required
146 * on this channel.
147 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
148 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
149 */
150struct ieee80211_channel {
151 enum nl80211_band band;
152 u16 center_freq;
153 u16 hw_value;
154 u32 flags;
155 int max_antenna_gain;
156 int max_power;
157 int max_reg_power;
158 bool beacon_found;
159 u32 orig_flags;
160 int orig_mag, orig_mpwr;
161 enum nl80211_dfs_state dfs_state;
162 unsigned long dfs_state_entered;
163 unsigned int dfs_cac_ms;
164};
165
166/**
167 * enum ieee80211_rate_flags - rate flags
168 *
169 * Hardware/specification flags for rates. These are structured
170 * in a way that allows using the same bitrate structure for
171 * different bands/PHY modes.
172 *
173 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
174 * preamble on this bitrate; only relevant in 2.4GHz band and
175 * with CCK rates.
176 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
177 * when used with 802.11a (on the 5 GHz band); filled by the
178 * core code when registering the wiphy.
179 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
180 * when used with 802.11b (on the 2.4 GHz band); filled by the
181 * core code when registering the wiphy.
182 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
183 * when used with 802.11g (on the 2.4 GHz band); filled by the
184 * core code when registering the wiphy.
185 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
186 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
187 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
188 */
189enum ieee80211_rate_flags {
190 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
191 IEEE80211_RATE_MANDATORY_A = 1<<1,
192 IEEE80211_RATE_MANDATORY_B = 1<<2,
193 IEEE80211_RATE_MANDATORY_G = 1<<3,
194 IEEE80211_RATE_ERP_G = 1<<4,
195 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5,
196 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6,
197};
198
199/**
200 * enum ieee80211_bss_type - BSS type filter
201 *
202 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
203 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS
204 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS
205 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
206 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
207 */
208enum ieee80211_bss_type {
209 IEEE80211_BSS_TYPE_ESS,
210 IEEE80211_BSS_TYPE_PBSS,
211 IEEE80211_BSS_TYPE_IBSS,
212 IEEE80211_BSS_TYPE_MBSS,
213 IEEE80211_BSS_TYPE_ANY
214};
215
216/**
217 * enum ieee80211_privacy - BSS privacy filter
218 *
219 * @IEEE80211_PRIVACY_ON: privacy bit set
220 * @IEEE80211_PRIVACY_OFF: privacy bit clear
221 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
222 */
223enum ieee80211_privacy {
224 IEEE80211_PRIVACY_ON,
225 IEEE80211_PRIVACY_OFF,
226 IEEE80211_PRIVACY_ANY
227};
228
229#define IEEE80211_PRIVACY(x) \
230 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
231
232/**
233 * struct ieee80211_rate - bitrate definition
234 *
235 * This structure describes a bitrate that an 802.11 PHY can
236 * operate with. The two values @hw_value and @hw_value_short
237 * are only for driver use when pointers to this structure are
238 * passed around.
239 *
240 * @flags: rate-specific flags
241 * @bitrate: bitrate in units of 100 Kbps
242 * @hw_value: driver/hardware value for this rate
243 * @hw_value_short: driver/hardware value for this rate when
244 * short preamble is used
245 */
246struct ieee80211_rate {
247 u32 flags;
248 u16 bitrate;
249 u16 hw_value, hw_value_short;
250};
251
252/**
253 * struct ieee80211_sta_ht_cap - STA's HT capabilities
254 *
255 * This structure describes most essential parameters needed
256 * to describe 802.11n HT capabilities for an STA.
257 *
258 * @ht_supported: is HT supported by the STA
259 * @cap: HT capabilities map as described in 802.11n spec
260 * @ampdu_factor: Maximum A-MPDU length factor
261 * @ampdu_density: Minimum A-MPDU spacing
262 * @mcs: Supported MCS rates
263 */
264struct ieee80211_sta_ht_cap {
265 u16 cap; /* use IEEE80211_HT_CAP_ */
266 bool ht_supported;
267 u8 ampdu_factor;
268 u8 ampdu_density;
269 struct ieee80211_mcs_info mcs;
270};
271
272/**
273 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
274 *
275 * This structure describes most essential parameters needed
276 * to describe 802.11ac VHT capabilities for an STA.
277 *
278 * @vht_supported: is VHT supported by the STA
279 * @cap: VHT capabilities map as described in 802.11ac spec
280 * @vht_mcs: Supported VHT MCS rates
281 */
282struct ieee80211_sta_vht_cap {
283 bool vht_supported;
284 u32 cap; /* use IEEE80211_VHT_CAP_ */
285 struct ieee80211_vht_mcs_info vht_mcs;
286};
287
288/**
289 * struct ieee80211_supported_band - frequency band definition
290 *
291 * This structure describes a frequency band a wiphy
292 * is able to operate in.
293 *
294 * @channels: Array of channels the hardware can operate in
295 * in this band.
296 * @band: the band this structure represents
297 * @n_channels: Number of channels in @channels
298 * @bitrates: Array of bitrates the hardware can operate with
299 * in this band. Must be sorted to give a valid "supported
300 * rates" IE, i.e. CCK rates first, then OFDM.
301 * @n_bitrates: Number of bitrates in @bitrates
302 * @ht_cap: HT capabilities in this band
303 * @vht_cap: VHT capabilities in this band
304 */
305struct ieee80211_supported_band {
306 struct ieee80211_channel *channels;
307 struct ieee80211_rate *bitrates;
308 enum nl80211_band band;
309 int n_channels;
310 int n_bitrates;
311 struct ieee80211_sta_ht_cap ht_cap;
312 struct ieee80211_sta_vht_cap vht_cap;
313};
314
315/**
316 * wiphy_read_of_freq_limits - read frequency limits from device tree
317 *
318 * @wiphy: the wireless device to get extra limits for
319 *
320 * Some devices may have extra limitations specified in DT. This may be useful
321 * for chipsets that normally support more bands but are limited due to board
322 * design (e.g. by antennas or external power amplifier).
323 *
324 * This function reads info from DT and uses it to *modify* channels (disable
325 * unavailable ones). It's usually a *bad* idea to use it in drivers with
326 * shared channel data as DT limitations are device specific. You should make
327 * sure to call it only if channels in wiphy are copied and can be modified
328 * without affecting other devices.
329 *
330 * As this function access device node it has to be called after set_wiphy_dev.
331 * It also modifies channels so they have to be set first.
332 * If using this helper, call it before wiphy_register().
333 */
334#ifdef CONFIG_OF
335void wiphy_read_of_freq_limits(struct wiphy *wiphy);
336#else /* CONFIG_OF */
337static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy)
338{
339}
340#endif /* !CONFIG_OF */
341
342
343/*
344 * Wireless hardware/device configuration structures and methods
345 */
346
347/**
348 * DOC: Actions and configuration
349 *
350 * Each wireless device and each virtual interface offer a set of configuration
351 * operations and other actions that are invoked by userspace. Each of these
352 * actions is described in the operations structure, and the parameters these
353 * operations use are described separately.
354 *
355 * Additionally, some operations are asynchronous and expect to get status
356 * information via some functions that drivers need to call.
357 *
358 * Scanning and BSS list handling with its associated functionality is described
359 * in a separate chapter.
360 */
361
362#define VHT_MUMIMO_GROUPS_DATA_LEN (WLAN_MEMBERSHIP_LEN +\
363 WLAN_USER_POSITION_LEN)
364
365/**
366 * struct vif_params - describes virtual interface parameters
367 * @flags: monitor interface flags, unchanged if 0, otherwise
368 * %MONITOR_FLAG_CHANGED will be set
369 * @use_4addr: use 4-address frames
370 * @macaddr: address to use for this virtual interface.
371 * If this parameter is set to zero address the driver may
372 * determine the address as needed.
373 * This feature is only fully supported by drivers that enable the
374 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
375 ** only p2p devices with specified MAC.
376 * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets
377 * belonging to that MU-MIMO groupID; %NULL if not changed
378 * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring
379 * MU-MIMO packets going to the specified station; %NULL if not changed
380 */
381struct vif_params {
382 u32 flags;
383 int use_4addr;
384 u8 macaddr[ETH_ALEN];
385 const u8 *vht_mumimo_groups;
386 const u8 *vht_mumimo_follow_addr;
387};
388
389/**
390 * struct key_params - key information
391 *
392 * Information about a key
393 *
394 * @key: key material
395 * @key_len: length of key material
396 * @cipher: cipher suite selector
397 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
398 * with the get_key() callback, must be in little endian,
399 * length given by @seq_len.
400 * @seq_len: length of @seq.
401 */
402struct key_params {
403 const u8 *key;
404 const u8 *seq;
405 int key_len;
406 int seq_len;
407 u32 cipher;
408};
409
410/**
411 * struct cfg80211_chan_def - channel definition
412 * @chan: the (control) channel
413 * @width: channel width
414 * @center_freq1: center frequency of first segment
415 * @center_freq2: center frequency of second segment
416 * (only with 80+80 MHz)
417 */
418struct cfg80211_chan_def {
419 struct ieee80211_channel *chan;
420 enum nl80211_chan_width width;
421 u32 center_freq1;
422 u32 center_freq2;
423};
424
425/**
426 * cfg80211_get_chandef_type - return old channel type from chandef
427 * @chandef: the channel definition
428 *
429 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
430 * chandef, which must have a bandwidth allowing this conversion.
431 */
432static inline enum nl80211_channel_type
433cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
434{
435 switch (chandef->width) {
436 case NL80211_CHAN_WIDTH_20_NOHT:
437 return NL80211_CHAN_NO_HT;
438 case NL80211_CHAN_WIDTH_20:
439 return NL80211_CHAN_HT20;
440 case NL80211_CHAN_WIDTH_40:
441 if (chandef->center_freq1 > chandef->chan->center_freq)
442 return NL80211_CHAN_HT40PLUS;
443 return NL80211_CHAN_HT40MINUS;
444 default:
445 WARN_ON(1);
446 return NL80211_CHAN_NO_HT;
447 }
448}
449
450/**
451 * cfg80211_chandef_create - create channel definition using channel type
452 * @chandef: the channel definition struct to fill
453 * @channel: the control channel
454 * @chantype: the channel type
455 *
456 * Given a channel type, create a channel definition.
457 */
458void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
459 struct ieee80211_channel *channel,
460 enum nl80211_channel_type chantype);
461
462/**
463 * cfg80211_chandef_identical - check if two channel definitions are identical
464 * @chandef1: first channel definition
465 * @chandef2: second channel definition
466 *
467 * Return: %true if the channels defined by the channel definitions are
468 * identical, %false otherwise.
469 */
470static inline bool
471cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
472 const struct cfg80211_chan_def *chandef2)
473{
474 return (chandef1->chan == chandef2->chan &&
475 chandef1->width == chandef2->width &&
476 chandef1->center_freq1 == chandef2->center_freq1 &&
477 chandef1->center_freq2 == chandef2->center_freq2);
478}
479
480/**
481 * cfg80211_chandef_compatible - check if two channel definitions are compatible
482 * @chandef1: first channel definition
483 * @chandef2: second channel definition
484 *
485 * Return: %NULL if the given channel definitions are incompatible,
486 * chandef1 or chandef2 otherwise.
487 */
488const struct cfg80211_chan_def *
489cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
490 const struct cfg80211_chan_def *chandef2);
491
492/**
493 * cfg80211_chandef_valid - check if a channel definition is valid
494 * @chandef: the channel definition to check
495 * Return: %true if the channel definition is valid. %false otherwise.
496 */
497bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
498
499/**
500 * cfg80211_chandef_usable - check if secondary channels can be used
501 * @wiphy: the wiphy to validate against
502 * @chandef: the channel definition to check
503 * @prohibited_flags: the regulatory channel flags that must not be set
504 * Return: %true if secondary channels are usable. %false otherwise.
505 */
506bool cfg80211_chandef_usable(struct wiphy *wiphy,
507 const struct cfg80211_chan_def *chandef,
508 u32 prohibited_flags);
509
510/**
511 * cfg80211_chandef_dfs_required - checks if radar detection is required
512 * @wiphy: the wiphy to validate against
513 * @chandef: the channel definition to check
514 * @iftype: the interface type as specified in &enum nl80211_iftype
515 * Returns:
516 * 1 if radar detection is required, 0 if it is not, < 0 on error
517 */
518int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
519 const struct cfg80211_chan_def *chandef,
520 enum nl80211_iftype iftype);
521
522/**
523 * ieee80211_chandef_rate_flags - returns rate flags for a channel
524 *
525 * In some channel types, not all rates may be used - for example CCK
526 * rates may not be used in 5/10 MHz channels.
527 *
528 * @chandef: channel definition for the channel
529 *
530 * Returns: rate flags which apply for this channel
531 */
532static inline enum ieee80211_rate_flags
533ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
534{
535 switch (chandef->width) {
536 case NL80211_CHAN_WIDTH_5:
537 return IEEE80211_RATE_SUPPORTS_5MHZ;
538 case NL80211_CHAN_WIDTH_10:
539 return IEEE80211_RATE_SUPPORTS_10MHZ;
540 default:
541 break;
542 }
543 return 0;
544}
545
546/**
547 * ieee80211_chandef_max_power - maximum transmission power for the chandef
548 *
549 * In some regulations, the transmit power may depend on the configured channel
550 * bandwidth which may be defined as dBm/MHz. This function returns the actual
551 * max_power for non-standard (20 MHz) channels.
552 *
553 * @chandef: channel definition for the channel
554 *
555 * Returns: maximum allowed transmission power in dBm for the chandef
556 */
557static inline int
558ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef)
559{
560 switch (chandef->width) {
561 case NL80211_CHAN_WIDTH_5:
562 return min(chandef->chan->max_reg_power - 6,
563 chandef->chan->max_power);
564 case NL80211_CHAN_WIDTH_10:
565 return min(chandef->chan->max_reg_power - 3,
566 chandef->chan->max_power);
567 default:
568 break;
569 }
570 return chandef->chan->max_power;
571}
572
573/**
574 * enum survey_info_flags - survey information flags
575 *
576 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
577 * @SURVEY_INFO_IN_USE: channel is currently being used
578 * @SURVEY_INFO_TIME: active time (in ms) was filled in
579 * @SURVEY_INFO_TIME_BUSY: busy time was filled in
580 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in
581 * @SURVEY_INFO_TIME_RX: receive time was filled in
582 * @SURVEY_INFO_TIME_TX: transmit time was filled in
583 * @SURVEY_INFO_TIME_SCAN: scan time was filled in
584 *
585 * Used by the driver to indicate which info in &struct survey_info
586 * it has filled in during the get_survey().
587 */
588enum survey_info_flags {
589 SURVEY_INFO_NOISE_DBM = BIT(0),
590 SURVEY_INFO_IN_USE = BIT(1),
591 SURVEY_INFO_TIME = BIT(2),
592 SURVEY_INFO_TIME_BUSY = BIT(3),
593 SURVEY_INFO_TIME_EXT_BUSY = BIT(4),
594 SURVEY_INFO_TIME_RX = BIT(5),
595 SURVEY_INFO_TIME_TX = BIT(6),
596 SURVEY_INFO_TIME_SCAN = BIT(7),
597};
598
599/**
600 * struct survey_info - channel survey response
601 *
602 * @channel: the channel this survey record reports, may be %NULL for a single
603 * record to report global statistics
604 * @filled: bitflag of flags from &enum survey_info_flags
605 * @noise: channel noise in dBm. This and all following fields are
606 * optional
607 * @time: amount of time in ms the radio was turn on (on the channel)
608 * @time_busy: amount of time the primary channel was sensed busy
609 * @time_ext_busy: amount of time the extension channel was sensed busy
610 * @time_rx: amount of time the radio spent receiving data
611 * @time_tx: amount of time the radio spent transmitting data
612 * @time_scan: amount of time the radio spent for scanning
613 *
614 * Used by dump_survey() to report back per-channel survey information.
615 *
616 * This structure can later be expanded with things like
617 * channel duty cycle etc.
618 */
619struct survey_info {
620 struct ieee80211_channel *channel;
621 u64 time;
622 u64 time_busy;
623 u64 time_ext_busy;
624 u64 time_rx;
625 u64 time_tx;
626 u64 time_scan;
627 u32 filled;
628 s8 noise;
629};
630
631#define CFG80211_MAX_WEP_KEYS 4
632
633/**
634 * struct cfg80211_crypto_settings - Crypto settings
635 * @wpa_versions: indicates which, if any, WPA versions are enabled
636 * (from enum nl80211_wpa_versions)
637 * @cipher_group: group key cipher suite (or 0 if unset)
638 * @n_ciphers_pairwise: number of AP supported unicast ciphers
639 * @ciphers_pairwise: unicast key cipher suites
640 * @n_akm_suites: number of AKM suites
641 * @akm_suites: AKM suites
642 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
643 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
644 * required to assume that the port is unauthorized until authorized by
645 * user space. Otherwise, port is marked authorized by default.
646 * @control_port_ethertype: the control port protocol that should be
647 * allowed through even on unauthorized ports
648 * @control_port_no_encrypt: TRUE to prevent encryption of control port
649 * protocol frames.
650 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
651 * port frames over NL80211 instead of the network interface.
652 * @wep_keys: static WEP keys, if not NULL points to an array of
653 * CFG80211_MAX_WEP_KEYS WEP keys
654 * @wep_tx_key: key index (0..3) of the default TX static WEP key
655 * @psk: PSK (for devices supporting 4-way-handshake offload)
656 */
657struct cfg80211_crypto_settings {
658 u32 wpa_versions;
659 u32 cipher_group;
660 int n_ciphers_pairwise;
661 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
662 int n_akm_suites;
663 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
664 bool control_port;
665 __be16 control_port_ethertype;
666 bool control_port_no_encrypt;
667 bool control_port_over_nl80211;
668 struct key_params *wep_keys;
669 int wep_tx_key;
670 const u8 *psk;
671};
672
673/**
674 * struct cfg80211_beacon_data - beacon data
675 * @head: head portion of beacon (before TIM IE)
676 * or %NULL if not changed
677 * @tail: tail portion of beacon (after TIM IE)
678 * or %NULL if not changed
679 * @head_len: length of @head
680 * @tail_len: length of @tail
681 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
682 * @beacon_ies_len: length of beacon_ies in octets
683 * @proberesp_ies: extra information element(s) to add into Probe Response
684 * frames or %NULL
685 * @proberesp_ies_len: length of proberesp_ies in octets
686 * @assocresp_ies: extra information element(s) to add into (Re)Association
687 * Response frames or %NULL
688 * @assocresp_ies_len: length of assocresp_ies in octets
689 * @probe_resp_len: length of probe response template (@probe_resp)
690 * @probe_resp: probe response template (AP mode only)
691 */
692struct cfg80211_beacon_data {
693 const u8 *head, *tail;
694 const u8 *beacon_ies;
695 const u8 *proberesp_ies;
696 const u8 *assocresp_ies;
697 const u8 *probe_resp;
698
699 size_t head_len, tail_len;
700 size_t beacon_ies_len;
701 size_t proberesp_ies_len;
702 size_t assocresp_ies_len;
703 size_t probe_resp_len;
704};
705
706struct mac_address {
707 u8 addr[ETH_ALEN];
708};
709
710/**
711 * struct cfg80211_acl_data - Access control list data
712 *
713 * @acl_policy: ACL policy to be applied on the station's
714 * entry specified by mac_addr
715 * @n_acl_entries: Number of MAC address entries passed
716 * @mac_addrs: List of MAC addresses of stations to be used for ACL
717 */
718struct cfg80211_acl_data {
719 enum nl80211_acl_policy acl_policy;
720 int n_acl_entries;
721
722 /* Keep it last */
723 struct mac_address mac_addrs[];
724};
725
726/*
727 * cfg80211_bitrate_mask - masks for bitrate control
728 */
729struct cfg80211_bitrate_mask {
730 struct {
731 u32 legacy;
732 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN];
733 u16 vht_mcs[NL80211_VHT_NSS_MAX];
734 enum nl80211_txrate_gi gi;
735 } control[NUM_NL80211_BANDS];
736};
737
738/**
739 * struct cfg80211_ap_settings - AP configuration
740 *
741 * Used to configure an AP interface.
742 *
743 * @chandef: defines the channel to use
744 * @beacon: beacon data
745 * @beacon_interval: beacon interval
746 * @dtim_period: DTIM period
747 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
748 * user space)
749 * @ssid_len: length of @ssid
750 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
751 * @crypto: crypto settings
752 * @privacy: the BSS uses privacy
753 * @auth_type: Authentication type (algorithm)
754 * @smps_mode: SMPS mode
755 * @inactivity_timeout: time in seconds to determine station's inactivity.
756 * @p2p_ctwindow: P2P CT Window
757 * @p2p_opp_ps: P2P opportunistic PS
758 * @acl: ACL configuration used by the drivers which has support for
759 * MAC address based access control
760 * @pbss: If set, start as a PCP instead of AP. Relevant for DMG
761 * networks.
762 * @beacon_rate: bitrate to be used for beacons
763 * @ht_cap: HT capabilities (or %NULL if HT isn't enabled)
764 * @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled)
765 * @ht_required: stations must support HT
766 * @vht_required: stations must support VHT
767 */
768struct cfg80211_ap_settings {
769 struct cfg80211_chan_def chandef;
770
771 struct cfg80211_beacon_data beacon;
772
773 int beacon_interval, dtim_period;
774 const u8 *ssid;
775 size_t ssid_len;
776 enum nl80211_hidden_ssid hidden_ssid;
777 struct cfg80211_crypto_settings crypto;
778 bool privacy;
779 enum nl80211_auth_type auth_type;
780 enum nl80211_smps_mode smps_mode;
781 int inactivity_timeout;
782 u8 p2p_ctwindow;
783 bool p2p_opp_ps;
784 const struct cfg80211_acl_data *acl;
785 bool pbss;
786 struct cfg80211_bitrate_mask beacon_rate;
787
788 const struct ieee80211_ht_cap *ht_cap;
789 const struct ieee80211_vht_cap *vht_cap;
790 bool ht_required, vht_required;
791};
792
793/**
794 * struct cfg80211_csa_settings - channel switch settings
795 *
796 * Used for channel switch
797 *
798 * @chandef: defines the channel to use after the switch
799 * @beacon_csa: beacon data while performing the switch
800 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
801 * @counter_offsets_presp: offsets of the counters within the probe response
802 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
803 * @n_counter_offsets_presp: number of csa counters in the probe response
804 * @beacon_after: beacon data to be used on the new channel
805 * @radar_required: whether radar detection is required on the new channel
806 * @block_tx: whether transmissions should be blocked while changing
807 * @count: number of beacons until switch
808 */
809struct cfg80211_csa_settings {
810 struct cfg80211_chan_def chandef;
811 struct cfg80211_beacon_data beacon_csa;
812 const u16 *counter_offsets_beacon;
813 const u16 *counter_offsets_presp;
814 unsigned int n_counter_offsets_beacon;
815 unsigned int n_counter_offsets_presp;
816 struct cfg80211_beacon_data beacon_after;
817 bool radar_required;
818 bool block_tx;
819 u8 count;
820};
821
822#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
823
824/**
825 * struct iface_combination_params - input parameters for interface combinations
826 *
827 * Used to pass interface combination parameters
828 *
829 * @num_different_channels: the number of different channels we want
830 * to use for verification
831 * @radar_detect: a bitmap where each bit corresponds to a channel
832 * width where radar detection is needed, as in the definition of
833 * &struct ieee80211_iface_combination.@radar_detect_widths
834 * @iftype_num: array with the number of interfaces of each interface
835 * type. The index is the interface type as specified in &enum
836 * nl80211_iftype.
837 * @new_beacon_int: set this to the beacon interval of a new interface
838 * that's not operating yet, if such is to be checked as part of
839 * the verification
840 */
841struct iface_combination_params {
842 int num_different_channels;
843 u8 radar_detect;
844 int iftype_num[NUM_NL80211_IFTYPES];
845 u32 new_beacon_int;
846};
847
848/**
849 * enum station_parameters_apply_mask - station parameter values to apply
850 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
851 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
852 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
853 *
854 * Not all station parameters have in-band "no change" signalling,
855 * for those that don't these flags will are used.
856 */
857enum station_parameters_apply_mask {
858 STATION_PARAM_APPLY_UAPSD = BIT(0),
859 STATION_PARAM_APPLY_CAPABILITY = BIT(1),
860 STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
861};
862
863/**
864 * struct station_parameters - station parameters
865 *
866 * Used to change and create a new station.
867 *
868 * @vlan: vlan interface station should belong to
869 * @supported_rates: supported rates in IEEE 802.11 format
870 * (or NULL for no change)
871 * @supported_rates_len: number of supported rates
872 * @sta_flags_mask: station flags that changed
873 * (bitmask of BIT(%NL80211_STA_FLAG_...))
874 * @sta_flags_set: station flags values
875 * (bitmask of BIT(%NL80211_STA_FLAG_...))
876 * @listen_interval: listen interval or -1 for no change
877 * @aid: AID or zero for no change
878 * @peer_aid: mesh peer AID or zero for no change
879 * @plink_action: plink action to take
880 * @plink_state: set the peer link state for a station
881 * @ht_capa: HT capabilities of station
882 * @vht_capa: VHT capabilities of station
883 * @uapsd_queues: bitmap of queues configured for uapsd. same format
884 * as the AC bitmap in the QoS info field
885 * @max_sp: max Service Period. same format as the MAX_SP in the
886 * QoS info field (but already shifted down)
887 * @sta_modify_mask: bitmap indicating which parameters changed
888 * (for those that don't have a natural "no change" value),
889 * see &enum station_parameters_apply_mask
890 * @local_pm: local link-specific mesh power save mode (no change when set
891 * to unknown)
892 * @capability: station capability
893 * @ext_capab: extended capabilities of the station
894 * @ext_capab_len: number of extended capabilities
895 * @supported_channels: supported channels in IEEE 802.11 format
896 * @supported_channels_len: number of supported channels
897 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
898 * @supported_oper_classes_len: number of supported operating classes
899 * @opmode_notif: operating mode field from Operating Mode Notification
900 * @opmode_notif_used: information if operating mode field is used
901 * @support_p2p_ps: information if station supports P2P PS mechanism
902 */
903struct station_parameters {
904 const u8 *supported_rates;
905 struct net_device *vlan;
906 u32 sta_flags_mask, sta_flags_set;
907 u32 sta_modify_mask;
908 int listen_interval;
909 u16 aid;
910 u16 peer_aid;
911 u8 supported_rates_len;
912 u8 plink_action;
913 u8 plink_state;
914 const struct ieee80211_ht_cap *ht_capa;
915 const struct ieee80211_vht_cap *vht_capa;
916 u8 uapsd_queues;
917 u8 max_sp;
918 enum nl80211_mesh_power_mode local_pm;
919 u16 capability;
920 const u8 *ext_capab;
921 u8 ext_capab_len;
922 const u8 *supported_channels;
923 u8 supported_channels_len;
924 const u8 *supported_oper_classes;
925 u8 supported_oper_classes_len;
926 u8 opmode_notif;
927 bool opmode_notif_used;
928 int support_p2p_ps;
929};
930
931/**
932 * struct station_del_parameters - station deletion parameters
933 *
934 * Used to delete a station entry (or all stations).
935 *
936 * @mac: MAC address of the station to remove or NULL to remove all stations
937 * @subtype: Management frame subtype to use for indicating removal
938 * (10 = Disassociation, 12 = Deauthentication)
939 * @reason_code: Reason code for the Disassociation/Deauthentication frame
940 */
941struct station_del_parameters {
942 const u8 *mac;
943 u8 subtype;
944 u16 reason_code;
945};
946
947/**
948 * enum cfg80211_station_type - the type of station being modified
949 * @CFG80211_STA_AP_CLIENT: client of an AP interface
950 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
951 * unassociated (update properties for this type of client is permitted)
952 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
953 * the AP MLME in the device
954 * @CFG80211_STA_AP_STA: AP station on managed interface
955 * @CFG80211_STA_IBSS: IBSS station
956 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
957 * while TDLS setup is in progress, it moves out of this state when
958 * being marked authorized; use this only if TDLS with external setup is
959 * supported/used)
960 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
961 * entry that is operating, has been marked authorized by userspace)
962 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
963 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
964 */
965enum cfg80211_station_type {
966 CFG80211_STA_AP_CLIENT,
967 CFG80211_STA_AP_CLIENT_UNASSOC,
968 CFG80211_STA_AP_MLME_CLIENT,
969 CFG80211_STA_AP_STA,
970 CFG80211_STA_IBSS,
971 CFG80211_STA_TDLS_PEER_SETUP,
972 CFG80211_STA_TDLS_PEER_ACTIVE,
973 CFG80211_STA_MESH_PEER_KERNEL,
974 CFG80211_STA_MESH_PEER_USER,
975};
976
977/**
978 * cfg80211_check_station_change - validate parameter changes
979 * @wiphy: the wiphy this operates on
980 * @params: the new parameters for a station
981 * @statype: the type of station being modified
982 *
983 * Utility function for the @change_station driver method. Call this function
984 * with the appropriate station type looking up the station (and checking that
985 * it exists). It will verify whether the station change is acceptable, and if
986 * not will return an error code. Note that it may modify the parameters for
987 * backward compatibility reasons, so don't use them before calling this.
988 */
989int cfg80211_check_station_change(struct wiphy *wiphy,
990 struct station_parameters *params,
991 enum cfg80211_station_type statype);
992
993/**
994 * enum station_info_rate_flags - bitrate info flags
995 *
996 * Used by the driver to indicate the specific rate transmission
997 * type for 802.11n transmissions.
998 *
999 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
1000 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
1001 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
1002 * @RATE_INFO_FLAGS_60G: 60GHz MCS
1003 */
1004enum rate_info_flags {
1005 RATE_INFO_FLAGS_MCS = BIT(0),
1006 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
1007 RATE_INFO_FLAGS_SHORT_GI = BIT(2),
1008 RATE_INFO_FLAGS_60G = BIT(3),
1009};
1010
1011/**
1012 * enum rate_info_bw - rate bandwidth information
1013 *
1014 * Used by the driver to indicate the rate bandwidth.
1015 *
1016 * @RATE_INFO_BW_5: 5 MHz bandwidth
1017 * @RATE_INFO_BW_10: 10 MHz bandwidth
1018 * @RATE_INFO_BW_20: 20 MHz bandwidth
1019 * @RATE_INFO_BW_40: 40 MHz bandwidth
1020 * @RATE_INFO_BW_80: 80 MHz bandwidth
1021 * @RATE_INFO_BW_160: 160 MHz bandwidth
1022 */
1023enum rate_info_bw {
1024 RATE_INFO_BW_20 = 0,
1025 RATE_INFO_BW_5,
1026 RATE_INFO_BW_10,
1027 RATE_INFO_BW_40,
1028 RATE_INFO_BW_80,
1029 RATE_INFO_BW_160,
1030};
1031
1032/**
1033 * struct rate_info - bitrate information
1034 *
1035 * Information about a receiving or transmitting bitrate
1036 *
1037 * @flags: bitflag of flags from &enum rate_info_flags
1038 * @mcs: mcs index if struct describes a 802.11n bitrate
1039 * @legacy: bitrate in 100kbit/s for 802.11abg
1040 * @nss: number of streams (VHT only)
1041 * @bw: bandwidth (from &enum rate_info_bw)
1042 */
1043struct rate_info {
1044 u8 flags;
1045 u8 mcs;
1046 u16 legacy;
1047 u8 nss;
1048 u8 bw;
1049};
1050
1051/**
1052 * enum station_info_rate_flags - bitrate info flags
1053 *
1054 * Used by the driver to indicate the specific rate transmission
1055 * type for 802.11n transmissions.
1056 *
1057 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
1058 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
1059 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
1060 */
1061enum bss_param_flags {
1062 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
1063 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
1064 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
1065};
1066
1067/**
1068 * struct sta_bss_parameters - BSS parameters for the attached station
1069 *
1070 * Information about the currently associated BSS
1071 *
1072 * @flags: bitflag of flags from &enum bss_param_flags
1073 * @dtim_period: DTIM period for the BSS
1074 * @beacon_interval: beacon interval
1075 */
1076struct sta_bss_parameters {
1077 u8 flags;
1078 u8 dtim_period;
1079 u16 beacon_interval;
1080};
1081
1082/**
1083 * struct cfg80211_tid_stats - per-TID statistics
1084 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to
1085 * indicate the relevant values in this struct are filled
1086 * @rx_msdu: number of received MSDUs
1087 * @tx_msdu: number of (attempted) transmitted MSDUs
1088 * @tx_msdu_retries: number of retries (not counting the first) for
1089 * transmitted MSDUs
1090 * @tx_msdu_failed: number of failed transmitted MSDUs
1091 */
1092struct cfg80211_tid_stats {
1093 u32 filled;
1094 u64 rx_msdu;
1095 u64 tx_msdu;
1096 u64 tx_msdu_retries;
1097 u64 tx_msdu_failed;
1098};
1099
1100#define IEEE80211_MAX_CHAINS 4
1101
1102/**
1103 * struct station_info - station information
1104 *
1105 * Station information filled by driver for get_station() and dump_station.
1106 *
1107 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to
1108 * indicate the relevant values in this struct for them
1109 * @connected_time: time(in secs) since a station is last connected
1110 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1111 * @rx_bytes: bytes (size of MPDUs) received from this station
1112 * @tx_bytes: bytes (size of MPDUs) transmitted to this station
1113 * @llid: mesh local link id
1114 * @plid: mesh peer link id
1115 * @plink_state: mesh peer link state
1116 * @signal: The signal strength, type depends on the wiphy's signal_type.
1117 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1118 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1119 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1120 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1121 * @chain_signal: per-chain signal strength of last received packet in dBm
1122 * @chain_signal_avg: per-chain signal strength average in dBm
1123 * @txrate: current unicast bitrate from this station
1124 * @rxrate: current unicast bitrate to this station
1125 * @rx_packets: packets (MSDUs & MMPDUs) received from this station
1126 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station
1127 * @tx_retries: cumulative retry counts (MPDUs)
1128 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK)
1129 * @rx_dropped_misc: Dropped for un-specified reason.
1130 * @bss_param: current BSS parameters
1131 * @generation: generation number for nl80211 dumps.
1132 * This number should increase every time the list of stations
1133 * changes, i.e. when a station is added or removed, so that
1134 * userspace can tell whether it got a consistent snapshot.
1135 * @assoc_req_ies: IEs from (Re)Association Request.
1136 * This is used only when in AP mode with drivers that do not use
1137 * user space MLME/SME implementation. The information is provided for
1138 * the cfg80211_new_sta() calls to notify user space of the IEs.
1139 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1140 * @sta_flags: station flags mask & values
1141 * @beacon_loss_count: Number of times beacon loss event has triggered.
1142 * @t_offset: Time offset of the station relative to this host.
1143 * @local_pm: local mesh STA power save mode
1144 * @peer_pm: peer mesh STA power save mode
1145 * @nonpeer_pm: non-peer mesh STA power save mode
1146 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1147 * towards this station.
1148 * @rx_beacon: number of beacons received from this peer
1149 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
1150 * from this peer
1151 * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer
1152 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
1153 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
1154 * @ack_signal: signal strength (in dBm) of the last ACK frame.
1155 */
1156struct station_info {
1157 u64 filled;
1158 u32 connected_time;
1159 u32 inactive_time;
1160 u64 rx_bytes;
1161 u64 tx_bytes;
1162 u16 llid;
1163 u16 plid;
1164 u8 plink_state;
1165 s8 signal;
1166 s8 signal_avg;
1167
1168 u8 chains;
1169 s8 chain_signal[IEEE80211_MAX_CHAINS];
1170 s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
1171
1172 struct rate_info txrate;
1173 struct rate_info rxrate;
1174 u32 rx_packets;
1175 u32 tx_packets;
1176 u32 tx_retries;
1177 u32 tx_failed;
1178 u32 rx_dropped_misc;
1179 struct sta_bss_parameters bss_param;
1180 struct nl80211_sta_flag_update sta_flags;
1181
1182 int generation;
1183
1184 const u8 *assoc_req_ies;
1185 size_t assoc_req_ies_len;
1186
1187 u32 beacon_loss_count;
1188 s64 t_offset;
1189 enum nl80211_mesh_power_mode local_pm;
1190 enum nl80211_mesh_power_mode peer_pm;
1191 enum nl80211_mesh_power_mode nonpeer_pm;
1192
1193 u32 expected_throughput;
1194
1195 u64 rx_beacon;
1196 u64 rx_duration;
1197 u8 rx_beacon_signal_avg;
1198 struct cfg80211_tid_stats pertid[IEEE80211_NUM_TIDS + 1];
1199 s8 ack_signal;
1200};
1201
1202#if IS_ENABLED(CONFIG_CFG80211)
1203/**
1204 * cfg80211_get_station - retrieve information about a given station
1205 * @dev: the device where the station is supposed to be connected to
1206 * @mac_addr: the mac address of the station of interest
1207 * @sinfo: pointer to the structure to fill with the information
1208 *
1209 * Returns 0 on success and sinfo is filled with the available information
1210 * otherwise returns a negative error code and the content of sinfo has to be
1211 * considered undefined.
1212 */
1213int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
1214 struct station_info *sinfo);
1215#else
1216static inline int cfg80211_get_station(struct net_device *dev,
1217 const u8 *mac_addr,
1218 struct station_info *sinfo)
1219{
1220 return -ENOENT;
1221}
1222#endif
1223
1224/**
1225 * enum monitor_flags - monitor flags
1226 *
1227 * Monitor interface configuration flags. Note that these must be the bits
1228 * according to the nl80211 flags.
1229 *
1230 * @MONITOR_FLAG_CHANGED: set if the flags were changed
1231 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1232 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1233 * @MONITOR_FLAG_CONTROL: pass control frames
1234 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1235 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1236 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1237 */
1238enum monitor_flags {
1239 MONITOR_FLAG_CHANGED = 1<<__NL80211_MNTR_FLAG_INVALID,
1240 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
1241 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
1242 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
1243 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
1244 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
1245 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE,
1246};
1247
1248/**
1249 * enum mpath_info_flags - mesh path information flags
1250 *
1251 * Used by the driver to indicate which info in &struct mpath_info it has filled
1252 * in during get_station() or dump_station().
1253 *
1254 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1255 * @MPATH_INFO_SN: @sn filled
1256 * @MPATH_INFO_METRIC: @metric filled
1257 * @MPATH_INFO_EXPTIME: @exptime filled
1258 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1259 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1260 * @MPATH_INFO_FLAGS: @flags filled
1261 */
1262enum mpath_info_flags {
1263 MPATH_INFO_FRAME_QLEN = BIT(0),
1264 MPATH_INFO_SN = BIT(1),
1265 MPATH_INFO_METRIC = BIT(2),
1266 MPATH_INFO_EXPTIME = BIT(3),
1267 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
1268 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
1269 MPATH_INFO_FLAGS = BIT(6),
1270};
1271
1272/**
1273 * struct mpath_info - mesh path information
1274 *
1275 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1276 *
1277 * @filled: bitfield of flags from &enum mpath_info_flags
1278 * @frame_qlen: number of queued frames for this destination
1279 * @sn: target sequence number
1280 * @metric: metric (cost) of this mesh path
1281 * @exptime: expiration time for the mesh path from now, in msecs
1282 * @flags: mesh path flags
1283 * @discovery_timeout: total mesh path discovery timeout, in msecs
1284 * @discovery_retries: mesh path discovery retries
1285 * @generation: generation number for nl80211 dumps.
1286 * This number should increase every time the list of mesh paths
1287 * changes, i.e. when a station is added or removed, so that
1288 * userspace can tell whether it got a consistent snapshot.
1289 */
1290struct mpath_info {
1291 u32 filled;
1292 u32 frame_qlen;
1293 u32 sn;
1294 u32 metric;
1295 u32 exptime;
1296 u32 discovery_timeout;
1297 u8 discovery_retries;
1298 u8 flags;
1299
1300 int generation;
1301};
1302
1303/**
1304 * struct bss_parameters - BSS parameters
1305 *
1306 * Used to change BSS parameters (mainly for AP mode).
1307 *
1308 * @use_cts_prot: Whether to use CTS protection
1309 * (0 = no, 1 = yes, -1 = do not change)
1310 * @use_short_preamble: Whether the use of short preambles is allowed
1311 * (0 = no, 1 = yes, -1 = do not change)
1312 * @use_short_slot_time: Whether the use of short slot time is allowed
1313 * (0 = no, 1 = yes, -1 = do not change)
1314 * @basic_rates: basic rates in IEEE 802.11 format
1315 * (or NULL for no change)
1316 * @basic_rates_len: number of basic rates
1317 * @ap_isolate: do not forward packets between connected stations
1318 * @ht_opmode: HT Operation mode
1319 * (u16 = opmode, -1 = do not change)
1320 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1321 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1322 */
1323struct bss_parameters {
1324 int use_cts_prot;
1325 int use_short_preamble;
1326 int use_short_slot_time;
1327 const u8 *basic_rates;
1328 u8 basic_rates_len;
1329 int ap_isolate;
1330 int ht_opmode;
1331 s8 p2p_ctwindow, p2p_opp_ps;
1332};
1333
1334/**
1335 * struct mesh_config - 802.11s mesh configuration
1336 *
1337 * These parameters can be changed while the mesh is active.
1338 *
1339 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1340 * by the Mesh Peering Open message
1341 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1342 * used by the Mesh Peering Open message
1343 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1344 * the mesh peering management to close a mesh peering
1345 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1346 * mesh interface
1347 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1348 * be sent to establish a new peer link instance in a mesh
1349 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1350 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1351 * elements
1352 * @auto_open_plinks: whether we should automatically open peer links when we
1353 * detect compatible mesh peers
1354 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1355 * synchronize to for 11s default synchronization method
1356 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1357 * that an originator mesh STA can send to a particular path target
1358 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1359 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1360 * a path discovery in milliseconds
1361 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1362 * receiving a PREQ shall consider the forwarding information from the
1363 * root to be valid. (TU = time unit)
1364 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1365 * which a mesh STA can send only one action frame containing a PREQ
1366 * element
1367 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1368 * which a mesh STA can send only one Action frame containing a PERR
1369 * element
1370 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1371 * it takes for an HWMP information element to propagate across the mesh
1372 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1373 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1374 * announcements are transmitted
1375 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1376 * station has access to a broader network beyond the MBSS. (This is
1377 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1378 * only means that the station will announce others it's a mesh gate, but
1379 * not necessarily using the gate announcement protocol. Still keeping the
1380 * same nomenclature to be in sync with the spec)
1381 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1382 * entity (default is TRUE - forwarding entity)
1383 * @rssi_threshold: the threshold for average signal strength of candidate
1384 * station to establish a peer link
1385 * @ht_opmode: mesh HT protection mode
1386 *
1387 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1388 * receiving a proactive PREQ shall consider the forwarding information to
1389 * the root mesh STA to be valid.
1390 *
1391 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1392 * PREQs are transmitted.
1393 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1394 * during which a mesh STA can send only one Action frame containing
1395 * a PREQ element for root path confirmation.
1396 * @power_mode: The default mesh power save mode which will be the initial
1397 * setting for new peer links.
1398 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1399 * after transmitting its beacon.
1400 * @plink_timeout: If no tx activity is seen from a STA we've established
1401 * peering with for longer than this time (in seconds), then remove it
1402 * from the STA's list of peers. Default is 30 minutes.
1403 */
1404struct mesh_config {
1405 u16 dot11MeshRetryTimeout;
1406 u16 dot11MeshConfirmTimeout;
1407 u16 dot11MeshHoldingTimeout;
1408 u16 dot11MeshMaxPeerLinks;
1409 u8 dot11MeshMaxRetries;
1410 u8 dot11MeshTTL;
1411 u8 element_ttl;
1412 bool auto_open_plinks;
1413 u32 dot11MeshNbrOffsetMaxNeighbor;
1414 u8 dot11MeshHWMPmaxPREQretries;
1415 u32 path_refresh_time;
1416 u16 min_discovery_timeout;
1417 u32 dot11MeshHWMPactivePathTimeout;
1418 u16 dot11MeshHWMPpreqMinInterval;
1419 u16 dot11MeshHWMPperrMinInterval;
1420 u16 dot11MeshHWMPnetDiameterTraversalTime;
1421 u8 dot11MeshHWMPRootMode;
1422 u16 dot11MeshHWMPRannInterval;
1423 bool dot11MeshGateAnnouncementProtocol;
1424 bool dot11MeshForwarding;
1425 s32 rssi_threshold;
1426 u16 ht_opmode;
1427 u32 dot11MeshHWMPactivePathToRootTimeout;
1428 u16 dot11MeshHWMProotInterval;
1429 u16 dot11MeshHWMPconfirmationInterval;
1430 enum nl80211_mesh_power_mode power_mode;
1431 u16 dot11MeshAwakeWindowDuration;
1432 u32 plink_timeout;
1433};
1434
1435/**
1436 * struct mesh_setup - 802.11s mesh setup configuration
1437 * @chandef: defines the channel to use
1438 * @mesh_id: the mesh ID
1439 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1440 * @sync_method: which synchronization method to use
1441 * @path_sel_proto: which path selection protocol to use
1442 * @path_metric: which metric to use
1443 * @auth_id: which authentication method this mesh is using
1444 * @ie: vendor information elements (optional)
1445 * @ie_len: length of vendor information elements
1446 * @is_authenticated: this mesh requires authentication
1447 * @is_secure: this mesh uses security
1448 * @user_mpm: userspace handles all MPM functions
1449 * @dtim_period: DTIM period to use
1450 * @beacon_interval: beacon interval to use
1451 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1452 * @basic_rates: basic rates to use when creating the mesh
1453 * @beacon_rate: bitrate to be used for beacons
1454 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1455 * changes the channel when a radar is detected. This is required
1456 * to operate on DFS channels.
1457 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
1458 * port frames over NL80211 instead of the network interface.
1459 *
1460 * These parameters are fixed when the mesh is created.
1461 */
1462struct mesh_setup {
1463 struct cfg80211_chan_def chandef;
1464 const u8 *mesh_id;
1465 u8 mesh_id_len;
1466 u8 sync_method;
1467 u8 path_sel_proto;
1468 u8 path_metric;
1469 u8 auth_id;
1470 const u8 *ie;
1471 u8 ie_len;
1472 bool is_authenticated;
1473 bool is_secure;
1474 bool user_mpm;
1475 u8 dtim_period;
1476 u16 beacon_interval;
1477 int mcast_rate[NUM_NL80211_BANDS];
1478 u32 basic_rates;
1479 struct cfg80211_bitrate_mask beacon_rate;
1480 bool userspace_handles_dfs;
1481 bool control_port_over_nl80211;
1482};
1483
1484/**
1485 * struct ocb_setup - 802.11p OCB mode setup configuration
1486 * @chandef: defines the channel to use
1487 *
1488 * These parameters are fixed when connecting to the network
1489 */
1490struct ocb_setup {
1491 struct cfg80211_chan_def chandef;
1492};
1493
1494/**
1495 * struct ieee80211_txq_params - TX queue parameters
1496 * @ac: AC identifier
1497 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1498 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1499 * 1..32767]
1500 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1501 * 1..32767]
1502 * @aifs: Arbitration interframe space [0..255]
1503 */
1504struct ieee80211_txq_params {
1505 enum nl80211_ac ac;
1506 u16 txop;
1507 u16 cwmin;
1508 u16 cwmax;
1509 u8 aifs;
1510};
1511
1512/**
1513 * DOC: Scanning and BSS list handling
1514 *
1515 * The scanning process itself is fairly simple, but cfg80211 offers quite
1516 * a bit of helper functionality. To start a scan, the scan operation will
1517 * be invoked with a scan definition. This scan definition contains the
1518 * channels to scan, and the SSIDs to send probe requests for (including the
1519 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1520 * probe. Additionally, a scan request may contain extra information elements
1521 * that should be added to the probe request. The IEs are guaranteed to be
1522 * well-formed, and will not exceed the maximum length the driver advertised
1523 * in the wiphy structure.
1524 *
1525 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1526 * it is responsible for maintaining the BSS list; the driver should not
1527 * maintain a list itself. For this notification, various functions exist.
1528 *
1529 * Since drivers do not maintain a BSS list, there are also a number of
1530 * functions to search for a BSS and obtain information about it from the
1531 * BSS structure cfg80211 maintains. The BSS list is also made available
1532 * to userspace.
1533 */
1534
1535/**
1536 * struct cfg80211_ssid - SSID description
1537 * @ssid: the SSID
1538 * @ssid_len: length of the ssid
1539 */
1540struct cfg80211_ssid {
1541 u8 ssid[IEEE80211_MAX_SSID_LEN];
1542 u8 ssid_len;
1543};
1544
1545/**
1546 * struct cfg80211_scan_info - information about completed scan
1547 * @scan_start_tsf: scan start time in terms of the TSF of the BSS that the
1548 * wireless device that requested the scan is connected to. If this
1549 * information is not available, this field is left zero.
1550 * @tsf_bssid: the BSSID according to which %scan_start_tsf is set.
1551 * @aborted: set to true if the scan was aborted for any reason,
1552 * userspace will be notified of that
1553 */
1554struct cfg80211_scan_info {
1555 u64 scan_start_tsf;
1556 u8 tsf_bssid[ETH_ALEN] __aligned(2);
1557 bool aborted;
1558};
1559
1560/**
1561 * struct cfg80211_scan_request - scan request description
1562 *
1563 * @ssids: SSIDs to scan for (active scan only)
1564 * @n_ssids: number of SSIDs
1565 * @channels: channels to scan on.
1566 * @n_channels: total number of channels to scan
1567 * @scan_width: channel width for scanning
1568 * @ie: optional information element(s) to add into Probe Request or %NULL
1569 * @ie_len: length of ie in octets
1570 * @duration: how long to listen on each channel, in TUs. If
1571 * %duration_mandatory is not set, this is the maximum dwell time and
1572 * the actual dwell time may be shorter.
1573 * @duration_mandatory: if set, the scan duration must be as specified by the
1574 * %duration field.
1575 * @flags: bit field of flags controlling operation
1576 * @rates: bitmap of rates to advertise for each band
1577 * @wiphy: the wiphy this was for
1578 * @scan_start: time (in jiffies) when the scan started
1579 * @wdev: the wireless device to scan for
1580 * @info: (internal) information about completed scan
1581 * @notified: (internal) scan request was notified as done or aborted
1582 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1583 * @mac_addr: MAC address used with randomisation
1584 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1585 * are 0 in the mask should be randomised, bits that are 1 should
1586 * be taken from the @mac_addr
1587 * @bssid: BSSID to scan for (most commonly, the wildcard BSSID)
1588 */
1589struct cfg80211_scan_request {
1590 struct cfg80211_ssid *ssids;
1591 int n_ssids;
1592 u32 n_channels;
1593 enum nl80211_bss_scan_width scan_width;
1594 const u8 *ie;
1595 size_t ie_len;
1596 u16 duration;
1597 bool duration_mandatory;
1598 u32 flags;
1599
1600 u32 rates[NUM_NL80211_BANDS];
1601
1602 struct wireless_dev *wdev;
1603
1604 u8 mac_addr[ETH_ALEN] __aligned(2);
1605 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1606 u8 bssid[ETH_ALEN] __aligned(2);
1607
1608 /* internal */
1609 struct wiphy *wiphy;
1610 unsigned long scan_start;
1611 struct cfg80211_scan_info info;
1612 bool notified;
1613 bool no_cck;
1614
1615 /* keep last */
1616 struct ieee80211_channel *channels[0];
1617};
1618
1619static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask)
1620{
1621 int i;
1622
1623 get_random_bytes(buf, ETH_ALEN);
1624 for (i = 0; i < ETH_ALEN; i++) {
1625 buf[i] &= ~mask[i];
1626 buf[i] |= addr[i] & mask[i];
1627 }
1628}
1629
1630/**
1631 * struct cfg80211_match_set - sets of attributes to match
1632 *
1633 * @ssid: SSID to be matched; may be zero-length in case of BSSID match
1634 * or no match (RSSI only)
1635 * @bssid: BSSID to be matched; may be all-zero BSSID in case of SSID match
1636 * or no match (RSSI only)
1637 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1638 */
1639struct cfg80211_match_set {
1640 struct cfg80211_ssid ssid;
1641 u8 bssid[ETH_ALEN];
1642 s32 rssi_thold;
1643};
1644
1645/**
1646 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan
1647 *
1648 * @interval: interval between scheduled scan iterations. In seconds.
1649 * @iterations: number of scan iterations in this scan plan. Zero means
1650 * infinite loop.
1651 * The last scan plan will always have this parameter set to zero,
1652 * all other scan plans will have a finite number of iterations.
1653 */
1654struct cfg80211_sched_scan_plan {
1655 u32 interval;
1656 u32 iterations;
1657};
1658
1659/**
1660 * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment.
1661 *
1662 * @band: band of BSS which should match for RSSI level adjustment.
1663 * @delta: value of RSSI level adjustment.
1664 */
1665struct cfg80211_bss_select_adjust {
1666 enum nl80211_band band;
1667 s8 delta;
1668};
1669
1670/**
1671 * struct cfg80211_sched_scan_request - scheduled scan request description
1672 *
1673 * @reqid: identifies this request.
1674 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1675 * @n_ssids: number of SSIDs
1676 * @n_channels: total number of channels to scan
1677 * @scan_width: channel width for scanning
1678 * @ie: optional information element(s) to add into Probe Request or %NULL
1679 * @ie_len: length of ie in octets
1680 * @flags: bit field of flags controlling operation
1681 * @match_sets: sets of parameters to be matched for a scan result
1682 * entry to be considered valid and to be passed to the host
1683 * (others are filtered out).
1684 * If ommited, all results are passed.
1685 * @n_match_sets: number of match sets
1686 * @report_results: indicates that results were reported for this request
1687 * @wiphy: the wiphy this was for
1688 * @dev: the interface
1689 * @scan_start: start time of the scheduled scan
1690 * @channels: channels to scan
1691 * @min_rssi_thold: for drivers only supporting a single threshold, this
1692 * contains the minimum over all matchsets
1693 * @mac_addr: MAC address used with randomisation
1694 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1695 * are 0 in the mask should be randomised, bits that are 1 should
1696 * be taken from the @mac_addr
1697 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest
1698 * index must be executed first.
1699 * @n_scan_plans: number of scan plans, at least 1.
1700 * @rcu_head: RCU callback used to free the struct
1701 * @owner_nlportid: netlink portid of owner (if this should is a request
1702 * owned by a particular socket)
1703 * @nl_owner_dead: netlink owner socket was closed - this request be freed
1704 * @list: for keeping list of requests.
1705 * @delay: delay in seconds to use before starting the first scan
1706 * cycle. The driver may ignore this parameter and start
1707 * immediately (or at any other time), if this feature is not
1708 * supported.
1709 * @relative_rssi_set: Indicates whether @relative_rssi is set or not.
1710 * @relative_rssi: Relative RSSI threshold in dB to restrict scan result
1711 * reporting in connected state to cases where a matching BSS is determined
1712 * to have better or slightly worse RSSI than the current connected BSS.
1713 * The relative RSSI threshold values are ignored in disconnected state.
1714 * @rssi_adjust: delta dB of RSSI preference to be given to the BSSs that belong
1715 * to the specified band while deciding whether a better BSS is reported
1716 * using @relative_rssi. If delta is a negative number, the BSSs that
1717 * belong to the specified band will be penalized by delta dB in relative
1718 * comparisions.
1719 */
1720struct cfg80211_sched_scan_request {
1721 u64 reqid;
1722 struct cfg80211_ssid *ssids;
1723 int n_ssids;
1724 u32 n_channels;
1725 enum nl80211_bss_scan_width scan_width;
1726 const u8 *ie;
1727 size_t ie_len;
1728 u32 flags;
1729 struct cfg80211_match_set *match_sets;
1730 int n_match_sets;
1731 s32 min_rssi_thold;
1732 u32 delay;
1733 struct cfg80211_sched_scan_plan *scan_plans;
1734 int n_scan_plans;
1735
1736 u8 mac_addr[ETH_ALEN] __aligned(2);
1737 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1738
1739 bool relative_rssi_set;
1740 s8 relative_rssi;
1741 struct cfg80211_bss_select_adjust rssi_adjust;
1742
1743 /* internal */
1744 struct wiphy *wiphy;
1745 struct net_device *dev;
1746 unsigned long scan_start;
1747 bool report_results;
1748 struct rcu_head rcu_head;
1749 u32 owner_nlportid;
1750 bool nl_owner_dead;
1751 struct list_head list;
1752
1753 /* keep last */
1754 struct ieee80211_channel *channels[0];
1755};
1756
1757/**
1758 * enum cfg80211_signal_type - signal type
1759 *
1760 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1761 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1762 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1763 */
1764enum cfg80211_signal_type {
1765 CFG80211_SIGNAL_TYPE_NONE,
1766 CFG80211_SIGNAL_TYPE_MBM,
1767 CFG80211_SIGNAL_TYPE_UNSPEC,
1768};
1769
1770/**
1771 * struct cfg80211_inform_bss - BSS inform data
1772 * @chan: channel the frame was received on
1773 * @scan_width: scan width that was used
1774 * @signal: signal strength value, according to the wiphy's
1775 * signal type
1776 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was
1777 * received; should match the time when the frame was actually
1778 * received by the device (not just by the host, in case it was
1779 * buffered on the device) and be accurate to about 10ms.
1780 * If the frame isn't buffered, just passing the return value of
1781 * ktime_get_boot_ns() is likely appropriate.
1782 * @parent_tsf: the time at the start of reception of the first octet of the
1783 * timestamp field of the frame. The time is the TSF of the BSS specified
1784 * by %parent_bssid.
1785 * @parent_bssid: the BSS according to which %parent_tsf is set. This is set to
1786 * the BSS that requested the scan in which the beacon/probe was received.
1787 * @chains: bitmask for filled values in @chain_signal.
1788 * @chain_signal: per-chain signal strength of last received BSS in dBm.
1789 */
1790struct cfg80211_inform_bss {
1791 struct ieee80211_channel *chan;
1792 enum nl80211_bss_scan_width scan_width;
1793 s32 signal;
1794 u64 boottime_ns;
1795 u64 parent_tsf;
1796 u8 parent_bssid[ETH_ALEN] __aligned(2);
1797 u8 chains;
1798 s8 chain_signal[IEEE80211_MAX_CHAINS];
1799};
1800
1801/**
1802 * struct cfg80211_bss_ies - BSS entry IE data
1803 * @tsf: TSF contained in the frame that carried these IEs
1804 * @rcu_head: internal use, for freeing
1805 * @len: length of the IEs
1806 * @from_beacon: these IEs are known to come from a beacon
1807 * @data: IE data
1808 */
1809struct cfg80211_bss_ies {
1810 u64 tsf;
1811 struct rcu_head rcu_head;
1812 int len;
1813 bool from_beacon;
1814 u8 data[];
1815};
1816
1817/**
1818 * struct cfg80211_bss - BSS description
1819 *
1820 * This structure describes a BSS (which may also be a mesh network)
1821 * for use in scan results and similar.
1822 *
1823 * @channel: channel this BSS is on
1824 * @scan_width: width of the control channel
1825 * @bssid: BSSID of the BSS
1826 * @beacon_interval: the beacon interval as from the frame
1827 * @capability: the capability field in host byte order
1828 * @ies: the information elements (Note that there is no guarantee that these
1829 * are well-formed!); this is a pointer to either the beacon_ies or
1830 * proberesp_ies depending on whether Probe Response frame has been
1831 * received. It is always non-%NULL.
1832 * @beacon_ies: the information elements from the last Beacon frame
1833 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1834 * own the beacon_ies, but they're just pointers to the ones from the
1835 * @hidden_beacon_bss struct)
1836 * @proberesp_ies: the information elements from the last Probe Response frame
1837 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1838 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1839 * that holds the beacon data. @beacon_ies is still valid, of course, and
1840 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1841 * @signal: signal strength value (type depends on the wiphy's signal_type)
1842 * @chains: bitmask for filled values in @chain_signal.
1843 * @chain_signal: per-chain signal strength of last received BSS in dBm.
1844 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1845 */
1846struct cfg80211_bss {
1847 struct ieee80211_channel *channel;
1848 enum nl80211_bss_scan_width scan_width;
1849
1850 const struct cfg80211_bss_ies __rcu *ies;
1851 const struct cfg80211_bss_ies __rcu *beacon_ies;
1852 const struct cfg80211_bss_ies __rcu *proberesp_ies;
1853
1854 struct cfg80211_bss *hidden_beacon_bss;
1855
1856 s32 signal;
1857
1858 u16 beacon_interval;
1859 u16 capability;
1860
1861 u8 bssid[ETH_ALEN];
1862 u8 chains;
1863 s8 chain_signal[IEEE80211_MAX_CHAINS];
1864
1865 u8 priv[0] __aligned(sizeof(void *));
1866};
1867
1868/**
1869 * ieee80211_bss_get_ie - find IE with given ID
1870 * @bss: the bss to search
1871 * @ie: the IE ID
1872 *
1873 * Note that the return value is an RCU-protected pointer, so
1874 * rcu_read_lock() must be held when calling this function.
1875 * Return: %NULL if not found.
1876 */
1877const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1878
1879
1880/**
1881 * struct cfg80211_auth_request - Authentication request data
1882 *
1883 * This structure provides information needed to complete IEEE 802.11
1884 * authentication.
1885 *
1886 * @bss: The BSS to authenticate with, the callee must obtain a reference
1887 * to it if it needs to keep it.
1888 * @auth_type: Authentication type (algorithm)
1889 * @ie: Extra IEs to add to Authentication frame or %NULL
1890 * @ie_len: Length of ie buffer in octets
1891 * @key_len: length of WEP key for shared key authentication
1892 * @key_idx: index of WEP key for shared key authentication
1893 * @key: WEP key for shared key authentication
1894 * @auth_data: Fields and elements in Authentication frames. This contains
1895 * the authentication frame body (non-IE and IE data), excluding the
1896 * Authentication algorithm number, i.e., starting at the Authentication
1897 * transaction sequence number field.
1898 * @auth_data_len: Length of auth_data buffer in octets
1899 */
1900struct cfg80211_auth_request {
1901 struct cfg80211_bss *bss;
1902 const u8 *ie;
1903 size_t ie_len;
1904 enum nl80211_auth_type auth_type;
1905 const u8 *key;
1906 u8 key_len, key_idx;
1907 const u8 *auth_data;
1908 size_t auth_data_len;
1909};
1910
1911/**
1912 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1913 *
1914 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1915 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1916 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
1917 * @CONNECT_REQ_EXTERNAL_AUTH_SUPPORT: User space indicates external
1918 * authentication capability. Drivers can offload authentication to
1919 * userspace if this flag is set. Only applicable for cfg80211_connect()
1920 * request (connect callback).
1921 */
1922enum cfg80211_assoc_req_flags {
1923 ASSOC_REQ_DISABLE_HT = BIT(0),
1924 ASSOC_REQ_DISABLE_VHT = BIT(1),
1925 ASSOC_REQ_USE_RRM = BIT(2),
1926 CONNECT_REQ_EXTERNAL_AUTH_SUPPORT = BIT(3),
1927};
1928
1929/**
1930 * struct cfg80211_assoc_request - (Re)Association request data
1931 *
1932 * This structure provides information needed to complete IEEE 802.11
1933 * (re)association.
1934 * @bss: The BSS to associate with. If the call is successful the driver is
1935 * given a reference that it must give back to cfg80211_send_rx_assoc()
1936 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1937 * association requests while already associating must be rejected.
1938 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1939 * @ie_len: Length of ie buffer in octets
1940 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1941 * @crypto: crypto settings
1942 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
1943 * to indicate a request to reassociate within the ESS instead of a request
1944 * do the initial association with the ESS. When included, this is set to
1945 * the BSSID of the current association, i.e., to the value that is
1946 * included in the Current AP address field of the Reassociation Request
1947 * frame.
1948 * @flags: See &enum cfg80211_assoc_req_flags
1949 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1950 * will be used in ht_capa. Un-supported values will be ignored.
1951 * @ht_capa_mask: The bits of ht_capa which are to be used.
1952 * @vht_capa: VHT capability override
1953 * @vht_capa_mask: VHT capability mask indicating which fields to use
1954 * @fils_kek: FILS KEK for protecting (Re)Association Request/Response frame or
1955 * %NULL if FILS is not used.
1956 * @fils_kek_len: Length of fils_kek in octets
1957 * @fils_nonces: FILS nonces (part of AAD) for protecting (Re)Association
1958 * Request/Response frame or %NULL if FILS is not used. This field starts
1959 * with 16 octets of STA Nonce followed by 16 octets of AP Nonce.
1960 */
1961struct cfg80211_assoc_request {
1962 struct cfg80211_bss *bss;
1963 const u8 *ie, *prev_bssid;
1964 size_t ie_len;
1965 struct cfg80211_crypto_settings crypto;
1966 bool use_mfp;
1967 u32 flags;
1968 struct ieee80211_ht_cap ht_capa;
1969 struct ieee80211_ht_cap ht_capa_mask;
1970 struct ieee80211_vht_cap vht_capa, vht_capa_mask;
1971 const u8 *fils_kek;
1972 size_t fils_kek_len;
1973 const u8 *fils_nonces;
1974};
1975
1976/**
1977 * struct cfg80211_deauth_request - Deauthentication request data
1978 *
1979 * This structure provides information needed to complete IEEE 802.11
1980 * deauthentication.
1981 *
1982 * @bssid: the BSSID of the BSS to deauthenticate from
1983 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1984 * @ie_len: Length of ie buffer in octets
1985 * @reason_code: The reason code for the deauthentication
1986 * @local_state_change: if set, change local state only and
1987 * do not set a deauth frame
1988 */
1989struct cfg80211_deauth_request {
1990 const u8 *bssid;
1991 const u8 *ie;
1992 size_t ie_len;
1993 u16 reason_code;
1994 bool local_state_change;
1995};
1996
1997/**
1998 * struct cfg80211_disassoc_request - Disassociation request data
1999 *
2000 * This structure provides information needed to complete IEEE 802.11
2001 * disassociation.
2002 *
2003 * @bss: the BSS to disassociate from
2004 * @ie: Extra IEs to add to Disassociation frame or %NULL
2005 * @ie_len: Length of ie buffer in octets
2006 * @reason_code: The reason code for the disassociation
2007 * @local_state_change: This is a request for a local state only, i.e., no
2008 * Disassociation frame is to be transmitted.
2009 */
2010struct cfg80211_disassoc_request {
2011 struct cfg80211_bss *bss;
2012 const u8 *ie;
2013 size_t ie_len;
2014 u16 reason_code;
2015 bool local_state_change;
2016};
2017
2018/**
2019 * struct cfg80211_ibss_params - IBSS parameters
2020 *
2021 * This structure defines the IBSS parameters for the join_ibss()
2022 * method.
2023 *
2024 * @ssid: The SSID, will always be non-null.
2025 * @ssid_len: The length of the SSID, will always be non-zero.
2026 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
2027 * search for IBSSs with a different BSSID.
2028 * @chandef: defines the channel to use if no other IBSS to join can be found
2029 * @channel_fixed: The channel should be fixed -- do not search for
2030 * IBSSs to join on other channels.
2031 * @ie: information element(s) to include in the beacon
2032 * @ie_len: length of that
2033 * @beacon_interval: beacon interval to use
2034 * @privacy: this is a protected network, keys will be configured
2035 * after joining
2036 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
2037 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
2038 * required to assume that the port is unauthorized until authorized by
2039 * user space. Otherwise, port is marked authorized by default.
2040 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
2041 * port frames over NL80211 instead of the network interface.
2042 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
2043 * changes the channel when a radar is detected. This is required
2044 * to operate on DFS channels.
2045 * @basic_rates: bitmap of basic rates to use when creating the IBSS
2046 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
2047 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2048 * will be used in ht_capa. Un-supported values will be ignored.
2049 * @ht_capa_mask: The bits of ht_capa which are to be used.
2050 * @wep_keys: static WEP keys, if not NULL points to an array of
2051 * CFG80211_MAX_WEP_KEYS WEP keys
2052 * @wep_tx_key: key index (0..3) of the default TX static WEP key
2053 */
2054struct cfg80211_ibss_params {
2055 const u8 *ssid;
2056 const u8 *bssid;
2057 struct cfg80211_chan_def chandef;
2058 const u8 *ie;
2059 u8 ssid_len, ie_len;
2060 u16 beacon_interval;
2061 u32 basic_rates;
2062 bool channel_fixed;
2063 bool privacy;
2064 bool control_port;
2065 bool control_port_over_nl80211;
2066 bool userspace_handles_dfs;
2067 int mcast_rate[NUM_NL80211_BANDS];
2068 struct ieee80211_ht_cap ht_capa;
2069 struct ieee80211_ht_cap ht_capa_mask;
2070 struct key_params *wep_keys;
2071 int wep_tx_key;
2072};
2073
2074/**
2075 * struct cfg80211_bss_selection - connection parameters for BSS selection.
2076 *
2077 * @behaviour: requested BSS selection behaviour.
2078 * @param: parameters for requestion behaviour.
2079 * @band_pref: preferred band for %NL80211_BSS_SELECT_ATTR_BAND_PREF.
2080 * @adjust: parameters for %NL80211_BSS_SELECT_ATTR_RSSI_ADJUST.
2081 */
2082struct cfg80211_bss_selection {
2083 enum nl80211_bss_select_attr behaviour;
2084 union {
2085 enum nl80211_band band_pref;
2086 struct cfg80211_bss_select_adjust adjust;
2087 } param;
2088};
2089
2090/**
2091 * struct cfg80211_connect_params - Connection parameters
2092 *
2093 * This structure provides information needed to complete IEEE 802.11
2094 * authentication and association.
2095 *
2096 * @channel: The channel to use or %NULL if not specified (auto-select based
2097 * on scan results)
2098 * @channel_hint: The channel of the recommended BSS for initial connection or
2099 * %NULL if not specified
2100 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
2101 * results)
2102 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
2103 * %NULL if not specified. Unlike the @bssid parameter, the driver is
2104 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
2105 * to use.
2106 * @ssid: SSID
2107 * @ssid_len: Length of ssid in octets
2108 * @auth_type: Authentication type (algorithm)
2109 * @ie: IEs for association request
2110 * @ie_len: Length of assoc_ie in octets
2111 * @privacy: indicates whether privacy-enabled APs should be used
2112 * @mfp: indicate whether management frame protection is used
2113 * @crypto: crypto settings
2114 * @key_len: length of WEP key for shared key authentication
2115 * @key_idx: index of WEP key for shared key authentication
2116 * @key: WEP key for shared key authentication
2117 * @flags: See &enum cfg80211_assoc_req_flags
2118 * @bg_scan_period: Background scan period in seconds
2119 * or -1 to indicate that default value is to be used.
2120 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2121 * will be used in ht_capa. Un-supported values will be ignored.
2122 * @ht_capa_mask: The bits of ht_capa which are to be used.
2123 * @vht_capa: VHT Capability overrides
2124 * @vht_capa_mask: The bits of vht_capa which are to be used.
2125 * @pbss: if set, connect to a PCP instead of AP. Valid for DMG
2126 * networks.
2127 * @bss_select: criteria to be used for BSS selection.
2128 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
2129 * to indicate a request to reassociate within the ESS instead of a request
2130 * do the initial association with the ESS. When included, this is set to
2131 * the BSSID of the current association, i.e., to the value that is
2132 * included in the Current AP address field of the Reassociation Request
2133 * frame.
2134 * @fils_erp_username: EAP re-authentication protocol (ERP) username part of the
2135 * NAI or %NULL if not specified. This is used to construct FILS wrapped
2136 * data IE.
2137 * @fils_erp_username_len: Length of @fils_erp_username in octets.
2138 * @fils_erp_realm: EAP re-authentication protocol (ERP) realm part of NAI or
2139 * %NULL if not specified. This specifies the domain name of ER server and
2140 * is used to construct FILS wrapped data IE.
2141 * @fils_erp_realm_len: Length of @fils_erp_realm in octets.
2142 * @fils_erp_next_seq_num: The next sequence number to use in the FILS ERP
2143 * messages. This is also used to construct FILS wrapped data IE.
2144 * @fils_erp_rrk: ERP re-authentication Root Key (rRK) used to derive additional
2145 * keys in FILS or %NULL if not specified.
2146 * @fils_erp_rrk_len: Length of @fils_erp_rrk in octets.
2147 * @want_1x: indicates user-space supports and wants to use 802.1X driver
2148 * offload of 4-way handshake.
2149 */
2150struct cfg80211_connect_params {
2151 struct ieee80211_channel *channel;
2152 struct ieee80211_channel *channel_hint;
2153 const u8 *bssid;
2154 const u8 *bssid_hint;
2155 const u8 *ssid;
2156 size_t ssid_len;
2157 enum nl80211_auth_type auth_type;
2158 const u8 *ie;
2159 size_t ie_len;
2160 bool privacy;
2161 enum nl80211_mfp mfp;
2162 struct cfg80211_crypto_settings crypto;
2163 const u8 *key;
2164 u8 key_len, key_idx;
2165 u32 flags;
2166 int bg_scan_period;
2167 struct ieee80211_ht_cap ht_capa;
2168 struct ieee80211_ht_cap ht_capa_mask;
2169 struct ieee80211_vht_cap vht_capa;
2170 struct ieee80211_vht_cap vht_capa_mask;
2171 bool pbss;
2172 struct cfg80211_bss_selection bss_select;
2173 const u8 *prev_bssid;
2174 const u8 *fils_erp_username;
2175 size_t fils_erp_username_len;
2176 const u8 *fils_erp_realm;
2177 size_t fils_erp_realm_len;
2178 u16 fils_erp_next_seq_num;
2179 const u8 *fils_erp_rrk;
2180 size_t fils_erp_rrk_len;
2181 bool want_1x;
2182};
2183
2184/**
2185 * enum cfg80211_connect_params_changed - Connection parameters being updated
2186 *
2187 * This enum provides information of all connect parameters that
2188 * have to be updated as part of update_connect_params() call.
2189 *
2190 * @UPDATE_ASSOC_IES: Indicates whether association request IEs are updated
2191 */
2192enum cfg80211_connect_params_changed {
2193 UPDATE_ASSOC_IES = BIT(0),
2194};
2195
2196/**
2197 * enum wiphy_params_flags - set_wiphy_params bitfield values
2198 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
2199 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
2200 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
2201 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
2202 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
2203 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
2204 */
2205enum wiphy_params_flags {
2206 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
2207 WIPHY_PARAM_RETRY_LONG = 1 << 1,
2208 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
2209 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
2210 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
2211 WIPHY_PARAM_DYN_ACK = 1 << 5,
2212};
2213
2214/**
2215 * struct cfg80211_pmksa - PMK Security Association
2216 *
2217 * This structure is passed to the set/del_pmksa() method for PMKSA
2218 * caching.
2219 *
2220 * @bssid: The AP's BSSID (may be %NULL).
2221 * @pmkid: The identifier to refer a PMKSA.
2222 * @pmk: The PMK for the PMKSA identified by @pmkid. This is used for key
2223 * derivation by a FILS STA. Otherwise, %NULL.
2224 * @pmk_len: Length of the @pmk. The length of @pmk can differ depending on
2225 * the hash algorithm used to generate this.
2226 * @ssid: SSID to specify the ESS within which a PMKSA is valid when using FILS
2227 * cache identifier (may be %NULL).
2228 * @ssid_len: Length of the @ssid in octets.
2229 * @cache_id: 2-octet cache identifier advertized by a FILS AP identifying the
2230 * scope of PMKSA. This is valid only if @ssid_len is non-zero (may be
2231 * %NULL).
2232 */
2233struct cfg80211_pmksa {
2234 const u8 *bssid;
2235 const u8 *pmkid;
2236 const u8 *pmk;
2237 size_t pmk_len;
2238 const u8 *ssid;
2239 size_t ssid_len;
2240 const u8 *cache_id;
2241};
2242
2243/**
2244 * struct cfg80211_pkt_pattern - packet pattern
2245 * @mask: bitmask where to match pattern and where to ignore bytes,
2246 * one bit per byte, in same format as nl80211
2247 * @pattern: bytes to match where bitmask is 1
2248 * @pattern_len: length of pattern (in bytes)
2249 * @pkt_offset: packet offset (in bytes)
2250 *
2251 * Internal note: @mask and @pattern are allocated in one chunk of
2252 * memory, free @mask only!
2253 */
2254struct cfg80211_pkt_pattern {
2255 const u8 *mask, *pattern;
2256 int pattern_len;
2257 int pkt_offset;
2258};
2259
2260/**
2261 * struct cfg80211_wowlan_tcp - TCP connection parameters
2262 *
2263 * @sock: (internal) socket for source port allocation
2264 * @src: source IP address
2265 * @dst: destination IP address
2266 * @dst_mac: destination MAC address
2267 * @src_port: source port
2268 * @dst_port: destination port
2269 * @payload_len: data payload length
2270 * @payload: data payload buffer
2271 * @payload_seq: payload sequence stamping configuration
2272 * @data_interval: interval at which to send data packets
2273 * @wake_len: wakeup payload match length
2274 * @wake_data: wakeup payload match data
2275 * @wake_mask: wakeup payload match mask
2276 * @tokens_size: length of the tokens buffer
2277 * @payload_tok: payload token usage configuration
2278 */
2279struct cfg80211_wowlan_tcp {
2280 struct socket *sock;
2281 __be32 src, dst;
2282 u16 src_port, dst_port;
2283 u8 dst_mac[ETH_ALEN];
2284 int payload_len;
2285 const u8 *payload;
2286 struct nl80211_wowlan_tcp_data_seq payload_seq;
2287 u32 data_interval;
2288 u32 wake_len;
2289 const u8 *wake_data, *wake_mask;
2290 u32 tokens_size;
2291 /* must be last, variable member */
2292 struct nl80211_wowlan_tcp_data_token payload_tok;
2293};
2294
2295/**
2296 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
2297 *
2298 * This structure defines the enabled WoWLAN triggers for the device.
2299 * @any: wake up on any activity -- special trigger if device continues
2300 * operating as normal during suspend
2301 * @disconnect: wake up if getting disconnected
2302 * @magic_pkt: wake up on receiving magic packet
2303 * @patterns: wake up on receiving packet matching a pattern
2304 * @n_patterns: number of patterns
2305 * @gtk_rekey_failure: wake up on GTK rekey failure
2306 * @eap_identity_req: wake up on EAP identity request packet
2307 * @four_way_handshake: wake up on 4-way handshake
2308 * @rfkill_release: wake up when rfkill is released
2309 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
2310 * NULL if not configured.
2311 * @nd_config: configuration for the scan to be used for net detect wake.
2312 */
2313struct cfg80211_wowlan {
2314 bool any, disconnect, magic_pkt, gtk_rekey_failure,
2315 eap_identity_req, four_way_handshake,
2316 rfkill_release;
2317 struct cfg80211_pkt_pattern *patterns;
2318 struct cfg80211_wowlan_tcp *tcp;
2319 int n_patterns;
2320 struct cfg80211_sched_scan_request *nd_config;
2321};
2322
2323/**
2324 * struct cfg80211_coalesce_rules - Coalesce rule parameters
2325 *
2326 * This structure defines coalesce rule for the device.
2327 * @delay: maximum coalescing delay in msecs.
2328 * @condition: condition for packet coalescence.
2329 * see &enum nl80211_coalesce_condition.
2330 * @patterns: array of packet patterns
2331 * @n_patterns: number of patterns
2332 */
2333struct cfg80211_coalesce_rules {
2334 int delay;
2335 enum nl80211_coalesce_condition condition;
2336 struct cfg80211_pkt_pattern *patterns;
2337 int n_patterns;
2338};
2339
2340/**
2341 * struct cfg80211_coalesce - Packet coalescing settings
2342 *
2343 * This structure defines coalescing settings.
2344 * @rules: array of coalesce rules
2345 * @n_rules: number of rules
2346 */
2347struct cfg80211_coalesce {
2348 struct cfg80211_coalesce_rules *rules;
2349 int n_rules;
2350};
2351
2352/**
2353 * struct cfg80211_wowlan_nd_match - information about the match
2354 *
2355 * @ssid: SSID of the match that triggered the wake up
2356 * @n_channels: Number of channels where the match occurred. This
2357 * value may be zero if the driver can't report the channels.
2358 * @channels: center frequencies of the channels where a match
2359 * occurred (in MHz)
2360 */
2361struct cfg80211_wowlan_nd_match {
2362 struct cfg80211_ssid ssid;
2363 int n_channels;
2364 u32 channels[];
2365};
2366
2367/**
2368 * struct cfg80211_wowlan_nd_info - net detect wake up information
2369 *
2370 * @n_matches: Number of match information instances provided in
2371 * @matches. This value may be zero if the driver can't provide
2372 * match information.
2373 * @matches: Array of pointers to matches containing information about
2374 * the matches that triggered the wake up.
2375 */
2376struct cfg80211_wowlan_nd_info {
2377 int n_matches;
2378 struct cfg80211_wowlan_nd_match *matches[];
2379};
2380
2381/**
2382 * struct cfg80211_wowlan_wakeup - wakeup report
2383 * @disconnect: woke up by getting disconnected
2384 * @magic_pkt: woke up by receiving magic packet
2385 * @gtk_rekey_failure: woke up by GTK rekey failure
2386 * @eap_identity_req: woke up by EAP identity request packet
2387 * @four_way_handshake: woke up by 4-way handshake
2388 * @rfkill_release: woke up by rfkill being released
2389 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
2390 * @packet_present_len: copied wakeup packet data
2391 * @packet_len: original wakeup packet length
2392 * @packet: The packet causing the wakeup, if any.
2393 * @packet_80211: For pattern match, magic packet and other data
2394 * frame triggers an 802.3 frame should be reported, for
2395 * disconnect due to deauth 802.11 frame. This indicates which
2396 * it is.
2397 * @tcp_match: TCP wakeup packet received
2398 * @tcp_connlost: TCP connection lost or failed to establish
2399 * @tcp_nomoretokens: TCP data ran out of tokens
2400 * @net_detect: if not %NULL, woke up because of net detect
2401 */
2402struct cfg80211_wowlan_wakeup {
2403 bool disconnect, magic_pkt, gtk_rekey_failure,
2404 eap_identity_req, four_way_handshake,
2405 rfkill_release, packet_80211,
2406 tcp_match, tcp_connlost, tcp_nomoretokens;
2407 s32 pattern_idx;
2408 u32 packet_present_len, packet_len;
2409 const void *packet;
2410 struct cfg80211_wowlan_nd_info *net_detect;
2411};
2412
2413/**
2414 * struct cfg80211_gtk_rekey_data - rekey data
2415 * @kek: key encryption key (NL80211_KEK_LEN bytes)
2416 * @kck: key confirmation key (NL80211_KCK_LEN bytes)
2417 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
2418 */
2419struct cfg80211_gtk_rekey_data {
2420 const u8 *kek, *kck, *replay_ctr;
2421};
2422
2423/**
2424 * struct cfg80211_update_ft_ies_params - FT IE Information
2425 *
2426 * This structure provides information needed to update the fast transition IE
2427 *
2428 * @md: The Mobility Domain ID, 2 Octet value
2429 * @ie: Fast Transition IEs
2430 * @ie_len: Length of ft_ie in octets
2431 */
2432struct cfg80211_update_ft_ies_params {
2433 u16 md;
2434 const u8 *ie;
2435 size_t ie_len;
2436};
2437
2438/**
2439 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
2440 *
2441 * This structure provides information needed to transmit a mgmt frame
2442 *
2443 * @chan: channel to use
2444 * @offchan: indicates wether off channel operation is required
2445 * @wait: duration for ROC
2446 * @buf: buffer to transmit
2447 * @len: buffer length
2448 * @no_cck: don't use cck rates for this frame
2449 * @dont_wait_for_ack: tells the low level not to wait for an ack
2450 * @n_csa_offsets: length of csa_offsets array
2451 * @csa_offsets: array of all the csa offsets in the frame
2452 */
2453struct cfg80211_mgmt_tx_params {
2454 struct ieee80211_channel *chan;
2455 bool offchan;
2456 unsigned int wait;
2457 const u8 *buf;
2458 size_t len;
2459 bool no_cck;
2460 bool dont_wait_for_ack;
2461 int n_csa_offsets;
2462 const u16 *csa_offsets;
2463};
2464
2465/**
2466 * struct cfg80211_dscp_exception - DSCP exception
2467 *
2468 * @dscp: DSCP value that does not adhere to the user priority range definition
2469 * @up: user priority value to which the corresponding DSCP value belongs
2470 */
2471struct cfg80211_dscp_exception {
2472 u8 dscp;
2473 u8 up;
2474};
2475
2476/**
2477 * struct cfg80211_dscp_range - DSCP range definition for user priority
2478 *
2479 * @low: lowest DSCP value of this user priority range, inclusive
2480 * @high: highest DSCP value of this user priority range, inclusive
2481 */
2482struct cfg80211_dscp_range {
2483 u8 low;
2484 u8 high;
2485};
2486
2487/* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2488#define IEEE80211_QOS_MAP_MAX_EX 21
2489#define IEEE80211_QOS_MAP_LEN_MIN 16
2490#define IEEE80211_QOS_MAP_LEN_MAX \
2491 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2492
2493/**
2494 * struct cfg80211_qos_map - QoS Map Information
2495 *
2496 * This struct defines the Interworking QoS map setting for DSCP values
2497 *
2498 * @num_des: number of DSCP exceptions (0..21)
2499 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2500 * the user priority DSCP range definition
2501 * @up: DSCP range definition for a particular user priority
2502 */
2503struct cfg80211_qos_map {
2504 u8 num_des;
2505 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX];
2506 struct cfg80211_dscp_range up[8];
2507};
2508
2509/**
2510 * struct cfg80211_nan_conf - NAN configuration
2511 *
2512 * This struct defines NAN configuration parameters
2513 *
2514 * @master_pref: master preference (1 - 255)
2515 * @bands: operating bands, a bitmap of &enum nl80211_band values.
2516 * For instance, for NL80211_BAND_2GHZ, bit 0 would be set
2517 * (i.e. BIT(NL80211_BAND_2GHZ)).
2518 */
2519struct cfg80211_nan_conf {
2520 u8 master_pref;
2521 u8 bands;
2522};
2523
2524/**
2525 * enum cfg80211_nan_conf_changes - indicates changed fields in NAN
2526 * configuration
2527 *
2528 * @CFG80211_NAN_CONF_CHANGED_PREF: master preference
2529 * @CFG80211_NAN_CONF_CHANGED_BANDS: operating bands
2530 */
2531enum cfg80211_nan_conf_changes {
2532 CFG80211_NAN_CONF_CHANGED_PREF = BIT(0),
2533 CFG80211_NAN_CONF_CHANGED_BANDS = BIT(1),
2534};
2535
2536/**
2537 * struct cfg80211_nan_func_filter - a NAN function Rx / Tx filter
2538 *
2539 * @filter: the content of the filter
2540 * @len: the length of the filter
2541 */
2542struct cfg80211_nan_func_filter {
2543 const u8 *filter;
2544 u8 len;
2545};
2546
2547/**
2548 * struct cfg80211_nan_func - a NAN function
2549 *
2550 * @type: &enum nl80211_nan_function_type
2551 * @service_id: the service ID of the function
2552 * @publish_type: &nl80211_nan_publish_type
2553 * @close_range: if true, the range should be limited. Threshold is
2554 * implementation specific.
2555 * @publish_bcast: if true, the solicited publish should be broadcasted
2556 * @subscribe_active: if true, the subscribe is active
2557 * @followup_id: the instance ID for follow up
2558 * @followup_reqid: the requestor instance ID for follow up
2559 * @followup_dest: MAC address of the recipient of the follow up
2560 * @ttl: time to live counter in DW.
2561 * @serv_spec_info: Service Specific Info
2562 * @serv_spec_info_len: Service Specific Info length
2563 * @srf_include: if true, SRF is inclusive
2564 * @srf_bf: Bloom Filter
2565 * @srf_bf_len: Bloom Filter length
2566 * @srf_bf_idx: Bloom Filter index
2567 * @srf_macs: SRF MAC addresses
2568 * @srf_num_macs: number of MAC addresses in SRF
2569 * @rx_filters: rx filters that are matched with corresponding peer's tx_filter
2570 * @tx_filters: filters that should be transmitted in the SDF.
2571 * @num_rx_filters: length of &rx_filters.
2572 * @num_tx_filters: length of &tx_filters.
2573 * @instance_id: driver allocated id of the function.
2574 * @cookie: unique NAN function identifier.
2575 */
2576struct cfg80211_nan_func {
2577 enum nl80211_nan_function_type type;
2578 u8 service_id[NL80211_NAN_FUNC_SERVICE_ID_LEN];
2579 u8 publish_type;
2580 bool close_range;
2581 bool publish_bcast;
2582 bool subscribe_active;
2583 u8 followup_id;
2584 u8 followup_reqid;
2585 struct mac_address followup_dest;
2586 u32 ttl;
2587 const u8 *serv_spec_info;
2588 u8 serv_spec_info_len;
2589 bool srf_include;
2590 const u8 *srf_bf;
2591 u8 srf_bf_len;
2592 u8 srf_bf_idx;
2593 struct mac_address *srf_macs;
2594 int srf_num_macs;
2595 struct cfg80211_nan_func_filter *rx_filters;
2596 struct cfg80211_nan_func_filter *tx_filters;
2597 u8 num_tx_filters;
2598 u8 num_rx_filters;
2599 u8 instance_id;
2600 u64 cookie;
2601};
2602
2603/**
2604 * struct cfg80211_pmk_conf - PMK configuration
2605 *
2606 * @aa: authenticator address
2607 * @pmk_len: PMK length in bytes.
2608 * @pmk: the PMK material
2609 * @pmk_r0_name: PMK-R0 Name. NULL if not applicable (i.e., the PMK
2610 * is not PMK-R0). When pmk_r0_name is not NULL, the pmk field
2611 * holds PMK-R0.
2612 */
2613struct cfg80211_pmk_conf {
2614 const u8 *aa;
2615 u8 pmk_len;
2616 const u8 *pmk;
2617 const u8 *pmk_r0_name;
2618};
2619
2620/**
2621 * struct cfg80211_external_auth_params - Trigger External authentication.
2622 *
2623 * Commonly used across the external auth request and event interfaces.
2624 *
2625 * @action: action type / trigger for external authentication. Only significant
2626 * for the authentication request event interface (driver to user space).
2627 * @bssid: BSSID of the peer with which the authentication has
2628 * to happen. Used by both the authentication request event and
2629 * authentication response command interface.
2630 * @ssid: SSID of the AP. Used by both the authentication request event and
2631 * authentication response command interface.
2632 * @key_mgmt_suite: AKM suite of the respective authentication. Used by the
2633 * authentication request event interface.
2634 * @status: status code, %WLAN_STATUS_SUCCESS for successful authentication,
2635 * use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space cannot give you
2636 * the real status code for failures. Used only for the authentication
2637 * response command interface (user space to driver).
2638 */
2639struct cfg80211_external_auth_params {
2640 enum nl80211_external_auth_action action;
2641 u8 bssid[ETH_ALEN] __aligned(2);
2642 struct cfg80211_ssid ssid;
2643 unsigned int key_mgmt_suite;
2644 u16 status;
2645};
2646
2647/**
2648 * struct cfg80211_ops - backend description for wireless configuration
2649 *
2650 * This struct is registered by fullmac card drivers and/or wireless stacks
2651 * in order to handle configuration requests on their interfaces.
2652 *
2653 * All callbacks except where otherwise noted should return 0
2654 * on success or a negative error code.
2655 *
2656 * All operations are currently invoked under rtnl for consistency with the
2657 * wireless extensions but this is subject to reevaluation as soon as this
2658 * code is used more widely and we have a first user without wext.
2659 *
2660 * @suspend: wiphy device needs to be suspended. The variable @wow will
2661 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2662 * configured for the device.
2663 * @resume: wiphy device needs to be resumed
2664 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2665 * to call device_set_wakeup_enable() to enable/disable wakeup from
2666 * the device.
2667 *
2668 * @add_virtual_intf: create a new virtual interface with the given name,
2669 * must set the struct wireless_dev's iftype. Beware: You must create
2670 * the new netdev in the wiphy's network namespace! Returns the struct
2671 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2672 * also set the address member in the wdev.
2673 *
2674 * @del_virtual_intf: remove the virtual interface
2675 *
2676 * @change_virtual_intf: change type/configuration of virtual interface,
2677 * keep the struct wireless_dev's iftype updated.
2678 *
2679 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2680 * when adding a group key.
2681 *
2682 * @get_key: get information about the key with the given parameters.
2683 * @mac_addr will be %NULL when requesting information for a group
2684 * key. All pointers given to the @callback function need not be valid
2685 * after it returns. This function should return an error if it is
2686 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2687 *
2688 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2689 * and @key_index, return -ENOENT if the key doesn't exist.
2690 *
2691 * @set_default_key: set the default key on an interface
2692 *
2693 * @set_default_mgmt_key: set the default management frame key on an interface
2694 *
2695 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2696 *
2697 * @start_ap: Start acting in AP mode defined by the parameters.
2698 * @change_beacon: Change the beacon parameters for an access point mode
2699 * interface. This should reject the call when AP mode wasn't started.
2700 * @stop_ap: Stop being an AP, including stopping beaconing.
2701 *
2702 * @add_station: Add a new station.
2703 * @del_station: Remove a station
2704 * @change_station: Modify a given station. Note that flags changes are not much
2705 * validated in cfg80211, in particular the auth/assoc/authorized flags
2706 * might come to the driver in invalid combinations -- make sure to check
2707 * them, also against the existing state! Drivers must call
2708 * cfg80211_check_station_change() to validate the information.
2709 * @get_station: get station information for the station identified by @mac
2710 * @dump_station: dump station callback -- resume dump at index @idx
2711 *
2712 * @add_mpath: add a fixed mesh path
2713 * @del_mpath: delete a given mesh path
2714 * @change_mpath: change a given mesh path
2715 * @get_mpath: get a mesh path for the given parameters
2716 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2717 * @get_mpp: get a mesh proxy path for the given parameters
2718 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
2719 * @join_mesh: join the mesh network with the specified parameters
2720 * (invoked with the wireless_dev mutex held)
2721 * @leave_mesh: leave the current mesh network
2722 * (invoked with the wireless_dev mutex held)
2723 *
2724 * @get_mesh_config: Get the current mesh configuration
2725 *
2726 * @update_mesh_config: Update mesh parameters on a running mesh.
2727 * The mask is a bitfield which tells us which parameters to
2728 * set, and which to leave alone.
2729 *
2730 * @change_bss: Modify parameters for a given BSS.
2731 *
2732 * @set_txq_params: Set TX queue parameters
2733 *
2734 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2735 * as it doesn't implement join_mesh and needs to set the channel to
2736 * join the mesh instead.
2737 *
2738 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2739 * interfaces are active this callback should reject the configuration.
2740 * If no interfaces are active or the device is down, the channel should
2741 * be stored for when a monitor interface becomes active.
2742 *
2743 * @scan: Request to do a scan. If returning zero, the scan request is given
2744 * the driver, and will be valid until passed to cfg80211_scan_done().
2745 * For scan results, call cfg80211_inform_bss(); you can call this outside
2746 * the scan/scan_done bracket too.
2747 * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall
2748 * indicate the status of the scan through cfg80211_scan_done().
2749 *
2750 * @auth: Request to authenticate with the specified peer
2751 * (invoked with the wireless_dev mutex held)
2752 * @assoc: Request to (re)associate with the specified peer
2753 * (invoked with the wireless_dev mutex held)
2754 * @deauth: Request to deauthenticate from the specified peer
2755 * (invoked with the wireless_dev mutex held)
2756 * @disassoc: Request to disassociate from the specified peer
2757 * (invoked with the wireless_dev mutex held)
2758 *
2759 * @connect: Connect to the ESS with the specified parameters. When connected,
2760 * call cfg80211_connect_result()/cfg80211_connect_bss() with status code
2761 * %WLAN_STATUS_SUCCESS. If the connection fails for some reason, call
2762 * cfg80211_connect_result()/cfg80211_connect_bss() with the status code
2763 * from the AP or cfg80211_connect_timeout() if no frame with status code
2764 * was received.
2765 * The driver is allowed to roam to other BSSes within the ESS when the
2766 * other BSS matches the connect parameters. When such roaming is initiated
2767 * by the driver, the driver is expected to verify that the target matches
2768 * the configured security parameters and to use Reassociation Request
2769 * frame instead of Association Request frame.
2770 * The connect function can also be used to request the driver to perform a
2771 * specific roam when connected to an ESS. In that case, the prev_bssid
2772 * parameter is set to the BSSID of the currently associated BSS as an
2773 * indication of requesting reassociation.
2774 * In both the driver-initiated and new connect() call initiated roaming
2775 * cases, the result of roaming is indicated with a call to
2776 * cfg80211_roamed(). (invoked with the wireless_dev mutex held)
2777 * @update_connect_params: Update the connect parameters while connected to a
2778 * BSS. The updated parameters can be used by driver/firmware for
2779 * subsequent BSS selection (roaming) decisions and to form the
2780 * Authentication/(Re)Association Request frames. This call does not
2781 * request an immediate disassociation or reassociation with the current
2782 * BSS, i.e., this impacts only subsequent (re)associations. The bits in
2783 * changed are defined in &enum cfg80211_connect_params_changed.
2784 * (invoked with the wireless_dev mutex held)
2785 * @disconnect: Disconnect from the BSS/ESS or stop connection attempts if
2786 * connection is in progress. Once done, call cfg80211_disconnected() in
2787 * case connection was already established (invoked with the
2788 * wireless_dev mutex held), otherwise call cfg80211_connect_timeout().
2789 *
2790 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2791 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2792 * to a merge.
2793 * (invoked with the wireless_dev mutex held)
2794 * @leave_ibss: Leave the IBSS.
2795 * (invoked with the wireless_dev mutex held)
2796 *
2797 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2798 * MESH mode)
2799 *
2800 * @set_wiphy_params: Notify that wiphy parameters have changed;
2801 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2802 * have changed. The actual parameter values are available in
2803 * struct wiphy. If returning an error, no value should be changed.
2804 *
2805 * @set_tx_power: set the transmit power according to the parameters,
2806 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2807 * wdev may be %NULL if power was set for the wiphy, and will
2808 * always be %NULL unless the driver supports per-vif TX power
2809 * (as advertised by the nl80211 feature flag.)
2810 * @get_tx_power: store the current TX power into the dbm variable;
2811 * return 0 if successful
2812 *
2813 * @set_wds_peer: set the WDS peer for a WDS interface
2814 *
2815 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2816 * functions to adjust rfkill hw state
2817 *
2818 * @dump_survey: get site survey information.
2819 *
2820 * @remain_on_channel: Request the driver to remain awake on the specified
2821 * channel for the specified duration to complete an off-channel
2822 * operation (e.g., public action frame exchange). When the driver is
2823 * ready on the requested channel, it must indicate this with an event
2824 * notification by calling cfg80211_ready_on_channel().
2825 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2826 * This allows the operation to be terminated prior to timeout based on
2827 * the duration value.
2828 * @mgmt_tx: Transmit a management frame.
2829 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2830 * frame on another channel
2831 *
2832 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2833 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2834 * used by the function, but 0 and 1 must not be touched. Additionally,
2835 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2836 * dump and return to userspace with an error, so be careful. If any data
2837 * was passed in from userspace then the data/len arguments will be present
2838 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2839 *
2840 * @set_bitrate_mask: set the bitrate mask configuration
2841 *
2842 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2843 * devices running firmwares capable of generating the (re) association
2844 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2845 * @del_pmksa: Delete a cached PMKID.
2846 * @flush_pmksa: Flush all cached PMKIDs.
2847 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2848 * allows the driver to adjust the dynamic ps timeout value.
2849 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2850 * After configuration, the driver should (soon) send an event indicating
2851 * the current level is above/below the configured threshold; this may
2852 * need some care when the configuration is changed (without first being
2853 * disabled.)
2854 * @set_cqm_rssi_range_config: Configure two RSSI thresholds in the
2855 * connection quality monitor. An event is to be sent only when the
2856 * signal level is found to be outside the two values. The driver should
2857 * set %NL80211_EXT_FEATURE_CQM_RSSI_LIST if this method is implemented.
2858 * If it is provided then there's no point providing @set_cqm_rssi_config.
2859 * @set_cqm_txe_config: Configure connection quality monitor TX error
2860 * thresholds.
2861 * @sched_scan_start: Tell the driver to start a scheduled scan.
2862 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan with
2863 * given request id. This call must stop the scheduled scan and be ready
2864 * for starting a new one before it returns, i.e. @sched_scan_start may be
2865 * called immediately after that again and should not fail in that case.
2866 * The driver should not call cfg80211_sched_scan_stopped() for a requested
2867 * stop (when this method returns 0).
2868 *
2869 * @mgmt_frame_register: Notify driver that a management frame type was
2870 * registered. The callback is allowed to sleep.
2871 *
2872 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2873 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2874 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2875 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2876 *
2877 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2878 *
2879 * @tdls_mgmt: Transmit a TDLS management frame.
2880 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2881 *
2882 * @probe_client: probe an associated client, must return a cookie that it
2883 * later passes to cfg80211_probe_status().
2884 *
2885 * @set_noack_map: Set the NoAck Map for the TIDs.
2886 *
2887 * @get_channel: Get the current operating channel for the virtual interface.
2888 * For monitor interfaces, it should return %NULL unless there's a single
2889 * current monitoring channel.
2890 *
2891 * @start_p2p_device: Start the given P2P device.
2892 * @stop_p2p_device: Stop the given P2P device.
2893 *
2894 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2895 * Parameters include ACL policy, an array of MAC address of stations
2896 * and the number of MAC addresses. If there is already a list in driver
2897 * this new list replaces the existing one. Driver has to clear its ACL
2898 * when number of MAC addresses entries is passed as 0. Drivers which
2899 * advertise the support for MAC based ACL have to implement this callback.
2900 *
2901 * @start_radar_detection: Start radar detection in the driver.
2902 *
2903 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2904 * driver. If the SME is in the driver/firmware, this information can be
2905 * used in building Authentication and Reassociation Request frames.
2906 *
2907 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2908 * for a given duration (milliseconds). The protocol is provided so the
2909 * driver can take the most appropriate actions.
2910 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2911 * reliability. This operation can not fail.
2912 * @set_coalesce: Set coalesce parameters.
2913 *
2914 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
2915 * responsible for veryfing if the switch is possible. Since this is
2916 * inherently tricky driver may decide to disconnect an interface later
2917 * with cfg80211_stop_iface(). This doesn't mean driver can accept
2918 * everything. It should do it's best to verify requests and reject them
2919 * as soon as possible.
2920 *
2921 * @set_qos_map: Set QoS mapping information to the driver
2922 *
2923 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2924 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2925 * changes during the lifetime of the BSS.
2926 *
2927 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
2928 * with the given parameters; action frame exchange has been handled by
2929 * userspace so this just has to modify the TX path to take the TS into
2930 * account.
2931 * If the admitted time is 0 just validate the parameters to make sure
2932 * the session can be created at all; it is valid to just always return
2933 * success for that but that may result in inefficient behaviour (handshake
2934 * with the peer followed by immediate teardown when the addition is later
2935 * rejected)
2936 * @del_tx_ts: remove an existing TX TS
2937 *
2938 * @join_ocb: join the OCB network with the specified parameters
2939 * (invoked with the wireless_dev mutex held)
2940 * @leave_ocb: leave the current OCB network
2941 * (invoked with the wireless_dev mutex held)
2942 *
2943 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
2944 * is responsible for continually initiating channel-switching operations
2945 * and returning to the base channel for communication with the AP.
2946 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
2947 * peers must be on the base channel when the call completes.
2948 * @start_nan: Start the NAN interface.
2949 * @stop_nan: Stop the NAN interface.
2950 * @add_nan_func: Add a NAN function. Returns negative value on failure.
2951 * On success @nan_func ownership is transferred to the driver and
2952 * it may access it outside of the scope of this function. The driver
2953 * should free the @nan_func when no longer needed by calling
2954 * cfg80211_free_nan_func().
2955 * On success the driver should assign an instance_id in the
2956 * provided @nan_func.
2957 * @del_nan_func: Delete a NAN function.
2958 * @nan_change_conf: changes NAN configuration. The changed parameters must
2959 * be specified in @changes (using &enum cfg80211_nan_conf_changes);
2960 * All other parameters must be ignored.
2961 *
2962 * @set_multicast_to_unicast: configure multicast to unicast conversion for BSS
2963 *
2964 * @set_pmk: configure the PMK to be used for offloaded 802.1X 4-Way handshake.
2965 * If not deleted through @del_pmk the PMK remains valid until disconnect
2966 * upon which the driver should clear it.
2967 * (invoked with the wireless_dev mutex held)
2968 * @del_pmk: delete the previously configured PMK for the given authenticator.
2969 * (invoked with the wireless_dev mutex held)
2970 *
2971 * @external_auth: indicates result of offloaded authentication processing from
2972 * user space
2973 *
2974 * @tx_control_port: TX a control port frame (EAPoL). The noencrypt parameter
2975 * tells the driver that the frame should not be encrypted.
2976 */
2977struct cfg80211_ops {
2978 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
2979 int (*resume)(struct wiphy *wiphy);
2980 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
2981
2982 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
2983 const char *name,
2984 unsigned char name_assign_type,
2985 enum nl80211_iftype type,
2986 struct vif_params *params);
2987 int (*del_virtual_intf)(struct wiphy *wiphy,
2988 struct wireless_dev *wdev);
2989 int (*change_virtual_intf)(struct wiphy *wiphy,
2990 struct net_device *dev,
2991 enum nl80211_iftype type,
2992 struct vif_params *params);
2993
2994 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
2995 u8 key_index, bool pairwise, const u8 *mac_addr,
2996 struct key_params *params);
2997 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
2998 u8 key_index, bool pairwise, const u8 *mac_addr,
2999 void *cookie,
3000 void (*callback)(void *cookie, struct key_params*));
3001 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
3002 u8 key_index, bool pairwise, const u8 *mac_addr);
3003 int (*set_default_key)(struct wiphy *wiphy,
3004 struct net_device *netdev,
3005 u8 key_index, bool unicast, bool multicast);
3006 int (*set_default_mgmt_key)(struct wiphy *wiphy,
3007 struct net_device *netdev,
3008 u8 key_index);
3009
3010 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
3011 struct cfg80211_ap_settings *settings);
3012 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
3013 struct cfg80211_beacon_data *info);
3014 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
3015
3016
3017 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
3018 const u8 *mac,
3019 struct station_parameters *params);
3020 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
3021 struct station_del_parameters *params);
3022 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
3023 const u8 *mac,
3024 struct station_parameters *params);
3025 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
3026 const u8 *mac, struct station_info *sinfo);
3027 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
3028 int idx, u8 *mac, struct station_info *sinfo);
3029
3030 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
3031 const u8 *dst, const u8 *next_hop);
3032 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
3033 const u8 *dst);
3034 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
3035 const u8 *dst, const u8 *next_hop);
3036 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
3037 u8 *dst, u8 *next_hop, struct mpath_info *pinfo);
3038 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
3039 int idx, u8 *dst, u8 *next_hop,
3040 struct mpath_info *pinfo);
3041 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev,
3042 u8 *dst, u8 *mpp, struct mpath_info *pinfo);
3043 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev,
3044 int idx, u8 *dst, u8 *mpp,
3045 struct mpath_info *pinfo);
3046 int (*get_mesh_config)(struct wiphy *wiphy,
3047 struct net_device *dev,
3048 struct mesh_config *conf);
3049 int (*update_mesh_config)(struct wiphy *wiphy,
3050 struct net_device *dev, u32 mask,
3051 const struct mesh_config *nconf);
3052 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
3053 const struct mesh_config *conf,
3054 const struct mesh_setup *setup);
3055 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
3056
3057 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev,
3058 struct ocb_setup *setup);
3059 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev);
3060
3061 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
3062 struct bss_parameters *params);
3063
3064 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
3065 struct ieee80211_txq_params *params);
3066
3067 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
3068 struct net_device *dev,
3069 struct ieee80211_channel *chan);
3070
3071 int (*set_monitor_channel)(struct wiphy *wiphy,
3072 struct cfg80211_chan_def *chandef);
3073
3074 int (*scan)(struct wiphy *wiphy,
3075 struct cfg80211_scan_request *request);
3076 void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev);
3077
3078 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
3079 struct cfg80211_auth_request *req);
3080 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
3081 struct cfg80211_assoc_request *req);
3082 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
3083 struct cfg80211_deauth_request *req);
3084 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
3085 struct cfg80211_disassoc_request *req);
3086
3087 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
3088 struct cfg80211_connect_params *sme);
3089 int (*update_connect_params)(struct wiphy *wiphy,
3090 struct net_device *dev,
3091 struct cfg80211_connect_params *sme,
3092 u32 changed);
3093 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
3094 u16 reason_code);
3095
3096 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
3097 struct cfg80211_ibss_params *params);
3098 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
3099
3100 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
3101 int rate[NUM_NL80211_BANDS]);
3102
3103 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
3104
3105 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
3106 enum nl80211_tx_power_setting type, int mbm);
3107 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
3108 int *dbm);
3109
3110 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
3111 const u8 *addr);
3112
3113 void (*rfkill_poll)(struct wiphy *wiphy);
3114
3115#ifdef CONFIG_NL80211_TESTMODE
3116 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev,
3117 void *data, int len);
3118 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
3119 struct netlink_callback *cb,
3120 void *data, int len);
3121#endif
3122
3123 int (*set_bitrate_mask)(struct wiphy *wiphy,
3124 struct net_device *dev,
3125 const u8 *peer,
3126 const struct cfg80211_bitrate_mask *mask);
3127
3128 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
3129 int idx, struct survey_info *info);
3130
3131 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
3132 struct cfg80211_pmksa *pmksa);
3133 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
3134 struct cfg80211_pmksa *pmksa);
3135 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
3136
3137 int (*remain_on_channel)(struct wiphy *wiphy,
3138 struct wireless_dev *wdev,
3139 struct ieee80211_channel *chan,
3140 unsigned int duration,
3141 u64 *cookie);
3142 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
3143 struct wireless_dev *wdev,
3144 u64 cookie);
3145
3146 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
3147 struct cfg80211_mgmt_tx_params *params,
3148 u64 *cookie);
3149 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
3150 struct wireless_dev *wdev,
3151 u64 cookie);
3152
3153 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
3154 bool enabled, int timeout);
3155
3156 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
3157 struct net_device *dev,
3158 s32 rssi_thold, u32 rssi_hyst);
3159
3160 int (*set_cqm_rssi_range_config)(struct wiphy *wiphy,
3161 struct net_device *dev,
3162 s32 rssi_low, s32 rssi_high);
3163
3164 int (*set_cqm_txe_config)(struct wiphy *wiphy,
3165 struct net_device *dev,
3166 u32 rate, u32 pkts, u32 intvl);
3167
3168 void (*mgmt_frame_register)(struct wiphy *wiphy,
3169 struct wireless_dev *wdev,
3170 u16 frame_type, bool reg);
3171
3172 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
3173 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
3174
3175 int (*sched_scan_start)(struct wiphy *wiphy,
3176 struct net_device *dev,
3177 struct cfg80211_sched_scan_request *request);
3178 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev,
3179 u64 reqid);
3180
3181 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
3182 struct cfg80211_gtk_rekey_data *data);
3183
3184 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
3185 const u8 *peer, u8 action_code, u8 dialog_token,
3186 u16 status_code, u32 peer_capability,
3187 bool initiator, const u8 *buf, size_t len);
3188 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
3189 const u8 *peer, enum nl80211_tdls_operation oper);
3190
3191 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
3192 const u8 *peer, u64 *cookie);
3193
3194 int (*set_noack_map)(struct wiphy *wiphy,
3195 struct net_device *dev,
3196 u16 noack_map);
3197
3198 int (*get_channel)(struct wiphy *wiphy,
3199 struct wireless_dev *wdev,
3200 struct cfg80211_chan_def *chandef);
3201
3202 int (*start_p2p_device)(struct wiphy *wiphy,
3203 struct wireless_dev *wdev);
3204 void (*stop_p2p_device)(struct wiphy *wiphy,
3205 struct wireless_dev *wdev);
3206
3207 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
3208 const struct cfg80211_acl_data *params);
3209
3210 int (*start_radar_detection)(struct wiphy *wiphy,
3211 struct net_device *dev,
3212 struct cfg80211_chan_def *chandef,
3213 u32 cac_time_ms);
3214 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
3215 struct cfg80211_update_ft_ies_params *ftie);
3216 int (*crit_proto_start)(struct wiphy *wiphy,
3217 struct wireless_dev *wdev,
3218 enum nl80211_crit_proto_id protocol,
3219 u16 duration);
3220 void (*crit_proto_stop)(struct wiphy *wiphy,
3221 struct wireless_dev *wdev);
3222 int (*set_coalesce)(struct wiphy *wiphy,
3223 struct cfg80211_coalesce *coalesce);
3224
3225 int (*channel_switch)(struct wiphy *wiphy,
3226 struct net_device *dev,
3227 struct cfg80211_csa_settings *params);
3228
3229 int (*set_qos_map)(struct wiphy *wiphy,
3230 struct net_device *dev,
3231 struct cfg80211_qos_map *qos_map);
3232
3233 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
3234 struct cfg80211_chan_def *chandef);
3235
3236 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
3237 u8 tsid, const u8 *peer, u8 user_prio,
3238 u16 admitted_time);
3239 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
3240 u8 tsid, const u8 *peer);
3241
3242 int (*tdls_channel_switch)(struct wiphy *wiphy,
3243 struct net_device *dev,
3244 const u8 *addr, u8 oper_class,
3245 struct cfg80211_chan_def *chandef);
3246 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy,
3247 struct net_device *dev,
3248 const u8 *addr);
3249 int (*start_nan)(struct wiphy *wiphy, struct wireless_dev *wdev,
3250 struct cfg80211_nan_conf *conf);
3251 void (*stop_nan)(struct wiphy *wiphy, struct wireless_dev *wdev);
3252 int (*add_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3253 struct cfg80211_nan_func *nan_func);
3254 void (*del_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3255 u64 cookie);
3256 int (*nan_change_conf)(struct wiphy *wiphy,
3257 struct wireless_dev *wdev,
3258 struct cfg80211_nan_conf *conf,
3259 u32 changes);
3260
3261 int (*set_multicast_to_unicast)(struct wiphy *wiphy,
3262 struct net_device *dev,
3263 const bool enabled);
3264
3265 int (*set_pmk)(struct wiphy *wiphy, struct net_device *dev,
3266 const struct cfg80211_pmk_conf *conf);
3267 int (*del_pmk)(struct wiphy *wiphy, struct net_device *dev,
3268 const u8 *aa);
3269 int (*external_auth)(struct wiphy *wiphy, struct net_device *dev,
3270 struct cfg80211_external_auth_params *params);
3271
3272 int (*tx_control_port)(struct wiphy *wiphy,
3273 struct net_device *dev,
3274 const u8 *buf, size_t len,
3275 const u8 *dest, const __be16 proto,
3276 const bool noencrypt);
3277};
3278
3279/*
3280 * wireless hardware and networking interfaces structures
3281 * and registration/helper functions
3282 */
3283
3284/**
3285 * enum wiphy_flags - wiphy capability flags
3286 *
3287 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
3288 * wiphy at all
3289 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
3290 * by default -- this flag will be set depending on the kernel's default
3291 * on wiphy_new(), but can be changed by the driver if it has a good
3292 * reason to override the default
3293 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
3294 * on a VLAN interface)
3295 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
3296 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
3297 * control port protocol ethertype. The device also honours the
3298 * control_port_no_encrypt flag.
3299 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
3300 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
3301 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
3302 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
3303 * firmware.
3304 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
3305 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
3306 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
3307 * link setup/discovery operations internally. Setup, discovery and
3308 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
3309 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
3310 * used for asking the driver/firmware to perform a TDLS operation.
3311 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
3312 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
3313 * when there are virtual interfaces in AP mode by calling
3314 * cfg80211_report_obss_beacon().
3315 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
3316 * responds to probe-requests in hardware.
3317 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
3318 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
3319 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
3320 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
3321 * beaconing mode (AP, IBSS, Mesh, ...).
3322 * @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
3323 * before connection.
3324 */
3325enum wiphy_flags {
3326 /* use hole at 0 */
3327 /* use hole at 1 */
3328 /* use hole at 2 */
3329 WIPHY_FLAG_NETNS_OK = BIT(3),
3330 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
3331 WIPHY_FLAG_4ADDR_AP = BIT(5),
3332 WIPHY_FLAG_4ADDR_STATION = BIT(6),
3333 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
3334 WIPHY_FLAG_IBSS_RSN = BIT(8),
3335 WIPHY_FLAG_MESH_AUTH = BIT(10),
3336 /* use hole at 11 */
3337 /* use hole at 12 */
3338 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
3339 WIPHY_FLAG_AP_UAPSD = BIT(14),
3340 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
3341 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
3342 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
3343 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
3344 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
3345 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
3346 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
3347 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
3348 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
3349 WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
3350};
3351
3352/**
3353 * struct ieee80211_iface_limit - limit on certain interface types
3354 * @max: maximum number of interfaces of these types
3355 * @types: interface types (bits)
3356 */
3357struct ieee80211_iface_limit {
3358 u16 max;
3359 u16 types;
3360};
3361
3362/**
3363 * struct ieee80211_iface_combination - possible interface combination
3364 *
3365 * With this structure the driver can describe which interface
3366 * combinations it supports concurrently.
3367 *
3368 * Examples:
3369 *
3370 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
3371 *
3372 * .. code-block:: c
3373 *
3374 * struct ieee80211_iface_limit limits1[] = {
3375 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3376 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
3377 * };
3378 * struct ieee80211_iface_combination combination1 = {
3379 * .limits = limits1,
3380 * .n_limits = ARRAY_SIZE(limits1),
3381 * .max_interfaces = 2,
3382 * .beacon_int_infra_match = true,
3383 * };
3384 *
3385 *
3386 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
3387 *
3388 * .. code-block:: c
3389 *
3390 * struct ieee80211_iface_limit limits2[] = {
3391 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
3392 * BIT(NL80211_IFTYPE_P2P_GO), },
3393 * };
3394 * struct ieee80211_iface_combination combination2 = {
3395 * .limits = limits2,
3396 * .n_limits = ARRAY_SIZE(limits2),
3397 * .max_interfaces = 8,
3398 * .num_different_channels = 1,
3399 * };
3400 *
3401 *
3402 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
3403 *
3404 * This allows for an infrastructure connection and three P2P connections.
3405 *
3406 * .. code-block:: c
3407 *
3408 * struct ieee80211_iface_limit limits3[] = {
3409 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3410 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
3411 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
3412 * };
3413 * struct ieee80211_iface_combination combination3 = {
3414 * .limits = limits3,
3415 * .n_limits = ARRAY_SIZE(limits3),
3416 * .max_interfaces = 4,
3417 * .num_different_channels = 2,
3418 * };
3419 *
3420 */
3421struct ieee80211_iface_combination {
3422 /**
3423 * @limits:
3424 * limits for the given interface types
3425 */
3426 const struct ieee80211_iface_limit *limits;
3427
3428 /**
3429 * @num_different_channels:
3430 * can use up to this many different channels
3431 */
3432 u32 num_different_channels;
3433
3434 /**
3435 * @max_interfaces:
3436 * maximum number of interfaces in total allowed in this group
3437 */
3438 u16 max_interfaces;
3439
3440 /**
3441 * @n_limits:
3442 * number of limitations
3443 */
3444 u8 n_limits;
3445
3446 /**
3447 * @beacon_int_infra_match:
3448 * In this combination, the beacon intervals between infrastructure
3449 * and AP types must match. This is required only in special cases.
3450 */
3451 bool beacon_int_infra_match;
3452
3453 /**
3454 * @radar_detect_widths:
3455 * bitmap of channel widths supported for radar detection
3456 */
3457 u8 radar_detect_widths;
3458
3459 /**
3460 * @radar_detect_regions:
3461 * bitmap of regions supported for radar detection
3462 */
3463 u8 radar_detect_regions;
3464
3465 /**
3466 * @beacon_int_min_gcd:
3467 * This interface combination supports different beacon intervals.
3468 *
3469 * = 0
3470 * all beacon intervals for different interface must be same.
3471 * > 0
3472 * any beacon interval for the interface part of this combination AND
3473 * GCD of all beacon intervals from beaconing interfaces of this
3474 * combination must be greater or equal to this value.
3475 */
3476 u32 beacon_int_min_gcd;
3477};
3478
3479struct ieee80211_txrx_stypes {
3480 u16 tx, rx;
3481};
3482
3483/**
3484 * enum wiphy_wowlan_support_flags - WoWLAN support flags
3485 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
3486 * trigger that keeps the device operating as-is and
3487 * wakes up the host on any activity, for example a
3488 * received packet that passed filtering; note that the
3489 * packet should be preserved in that case
3490 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
3491 * (see nl80211.h)
3492 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
3493 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
3494 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
3495 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
3496 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
3497 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
3498 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
3499 */
3500enum wiphy_wowlan_support_flags {
3501 WIPHY_WOWLAN_ANY = BIT(0),
3502 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
3503 WIPHY_WOWLAN_DISCONNECT = BIT(2),
3504 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
3505 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
3506 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
3507 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
3508 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
3509 WIPHY_WOWLAN_NET_DETECT = BIT(8),
3510};
3511
3512struct wiphy_wowlan_tcp_support {
3513 const struct nl80211_wowlan_tcp_data_token_feature *tok;
3514 u32 data_payload_max;
3515 u32 data_interval_max;
3516 u32 wake_payload_max;
3517 bool seq;
3518};
3519
3520/**
3521 * struct wiphy_wowlan_support - WoWLAN support data
3522 * @flags: see &enum wiphy_wowlan_support_flags
3523 * @n_patterns: number of supported wakeup patterns
3524 * (see nl80211.h for the pattern definition)
3525 * @pattern_max_len: maximum length of each pattern
3526 * @pattern_min_len: minimum length of each pattern
3527 * @max_pkt_offset: maximum Rx packet offset
3528 * @max_nd_match_sets: maximum number of matchsets for net-detect,
3529 * similar, but not necessarily identical, to max_match_sets for
3530 * scheduled scans.
3531 * See &struct cfg80211_sched_scan_request.@match_sets for more
3532 * details.
3533 * @tcp: TCP wakeup support information
3534 */
3535struct wiphy_wowlan_support {
3536 u32 flags;
3537 int n_patterns;
3538 int pattern_max_len;
3539 int pattern_min_len;
3540 int max_pkt_offset;
3541 int max_nd_match_sets;
3542 const struct wiphy_wowlan_tcp_support *tcp;
3543};
3544
3545/**
3546 * struct wiphy_coalesce_support - coalesce support data
3547 * @n_rules: maximum number of coalesce rules
3548 * @max_delay: maximum supported coalescing delay in msecs
3549 * @n_patterns: number of supported patterns in a rule
3550 * (see nl80211.h for the pattern definition)
3551 * @pattern_max_len: maximum length of each pattern
3552 * @pattern_min_len: minimum length of each pattern
3553 * @max_pkt_offset: maximum Rx packet offset
3554 */
3555struct wiphy_coalesce_support {
3556 int n_rules;
3557 int max_delay;
3558 int n_patterns;
3559 int pattern_max_len;
3560 int pattern_min_len;
3561 int max_pkt_offset;
3562};
3563
3564/**
3565 * enum wiphy_vendor_command_flags - validation flags for vendor commands
3566 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
3567 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
3568 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
3569 * (must be combined with %_WDEV or %_NETDEV)
3570 */
3571enum wiphy_vendor_command_flags {
3572 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0),
3573 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1),
3574 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2),
3575};
3576
3577/**
3578 * enum wiphy_opmode_flag - Station's ht/vht operation mode information flags
3579 *
3580 * @STA_OPMODE_MAX_BW_CHANGED: Max Bandwidth changed
3581 * @STA_OPMODE_SMPS_MODE_CHANGED: SMPS mode changed
3582 * @STA_OPMODE_N_SS_CHANGED: max N_SS (number of spatial streams) changed
3583 *
3584 */
3585enum wiphy_opmode_flag {
3586 STA_OPMODE_MAX_BW_CHANGED = BIT(0),
3587 STA_OPMODE_SMPS_MODE_CHANGED = BIT(1),
3588 STA_OPMODE_N_SS_CHANGED = BIT(2),
3589};
3590
3591/**
3592 * struct sta_opmode_info - Station's ht/vht operation mode information
3593 * @changed: contains value from &enum wiphy_opmode_flag
3594 * @smps_mode: New SMPS mode value from &enum nl80211_smps_mode of a station
3595 * @bw: new max bandwidth value from &enum nl80211_chan_width of a station
3596 * @rx_nss: new rx_nss value of a station
3597 */
3598
3599struct sta_opmode_info {
3600 u32 changed;
3601 enum nl80211_smps_mode smps_mode;
3602 enum nl80211_chan_width bw;
3603 u8 rx_nss;
3604};
3605
3606/**
3607 * struct wiphy_vendor_command - vendor command definition
3608 * @info: vendor command identifying information, as used in nl80211
3609 * @flags: flags, see &enum wiphy_vendor_command_flags
3610 * @doit: callback for the operation, note that wdev is %NULL if the
3611 * flags didn't ask for a wdev and non-%NULL otherwise; the data
3612 * pointer may be %NULL if userspace provided no data at all
3613 * @dumpit: dump callback, for transferring bigger/multiple items. The
3614 * @storage points to cb->args[5], ie. is preserved over the multiple
3615 * dumpit calls.
3616 * It's recommended to not have the same sub command with both @doit and
3617 * @dumpit, so that userspace can assume certain ones are get and others
3618 * are used with dump requests.
3619 */
3620struct wiphy_vendor_command {
3621 struct nl80211_vendor_cmd_info info;
3622 u32 flags;
3623 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3624 const void *data, int data_len);
3625 int (*dumpit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3626 struct sk_buff *skb, const void *data, int data_len,
3627 unsigned long *storage);
3628};
3629
3630/**
3631 * struct wiphy_iftype_ext_capab - extended capabilities per interface type
3632 * @iftype: interface type
3633 * @extended_capabilities: extended capabilities supported by the driver,
3634 * additional capabilities might be supported by userspace; these are the
3635 * 802.11 extended capabilities ("Extended Capabilities element") and are
3636 * in the same format as in the information element. See IEEE Std
3637 * 802.11-2012 8.4.2.29 for the defined fields.
3638 * @extended_capabilities_mask: mask of the valid values
3639 * @extended_capabilities_len: length of the extended capabilities
3640 */
3641struct wiphy_iftype_ext_capab {
3642 enum nl80211_iftype iftype;
3643 const u8 *extended_capabilities;
3644 const u8 *extended_capabilities_mask;
3645 u8 extended_capabilities_len;
3646};
3647
3648/**
3649 * struct wiphy - wireless hardware description
3650 * @reg_notifier: the driver's regulatory notification callback,
3651 * note that if your driver uses wiphy_apply_custom_regulatory()
3652 * the reg_notifier's request can be passed as NULL
3653 * @regd: the driver's regulatory domain, if one was requested via
3654 * the regulatory_hint() API. This can be used by the driver
3655 * on the reg_notifier() if it chooses to ignore future
3656 * regulatory domain changes caused by other drivers.
3657 * @signal_type: signal type reported in &struct cfg80211_bss.
3658 * @cipher_suites: supported cipher suites
3659 * @n_cipher_suites: number of supported cipher suites
3660 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
3661 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
3662 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
3663 * -1 = fragmentation disabled, only odd values >= 256 used
3664 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
3665 * @_net: the network namespace this wiphy currently lives in
3666 * @perm_addr: permanent MAC address of this device
3667 * @addr_mask: If the device supports multiple MAC addresses by masking,
3668 * set this to a mask with variable bits set to 1, e.g. if the last
3669 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
3670 * variable bits shall be determined by the interfaces added, with
3671 * interfaces not matching the mask being rejected to be brought up.
3672 * @n_addresses: number of addresses in @addresses.
3673 * @addresses: If the device has more than one address, set this pointer
3674 * to a list of addresses (6 bytes each). The first one will be used
3675 * by default for perm_addr. In this case, the mask should be set to
3676 * all-zeroes. In this case it is assumed that the device can handle
3677 * the same number of arbitrary MAC addresses.
3678 * @registered: protects ->resume and ->suspend sysfs callbacks against
3679 * unregister hardware
3680 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
3681 * automatically on wiphy renames
3682 * @dev: (virtual) struct device for this wiphy
3683 * @registered: helps synchronize suspend/resume with wiphy unregister
3684 * @wext: wireless extension handlers
3685 * @priv: driver private data (sized according to wiphy_new() parameter)
3686 * @interface_modes: bitmask of interfaces types valid for this wiphy,
3687 * must be set by driver
3688 * @iface_combinations: Valid interface combinations array, should not
3689 * list single interface types.
3690 * @n_iface_combinations: number of entries in @iface_combinations array.
3691 * @software_iftypes: bitmask of software interface types, these are not
3692 * subject to any restrictions since they are purely managed in SW.
3693 * @flags: wiphy flags, see &enum wiphy_flags
3694 * @regulatory_flags: wiphy regulatory flags, see
3695 * &enum ieee80211_regulatory_flags
3696 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
3697 * @ext_features: extended features advertised to nl80211, see
3698 * &enum nl80211_ext_feature_index.
3699 * @bss_priv_size: each BSS struct has private data allocated with it,
3700 * this variable determines its size
3701 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
3702 * any given scan
3703 * @max_sched_scan_reqs: maximum number of scheduled scan requests that
3704 * the device can run concurrently.
3705 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
3706 * for in any given scheduled scan
3707 * @max_match_sets: maximum number of match sets the device can handle
3708 * when performing a scheduled scan, 0 if filtering is not
3709 * supported.
3710 * @max_scan_ie_len: maximum length of user-controlled IEs device can
3711 * add to probe request frames transmitted during a scan, must not
3712 * include fixed IEs like supported rates
3713 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
3714 * scans
3715 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number
3716 * of iterations) for scheduled scan supported by the device.
3717 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a
3718 * single scan plan supported by the device.
3719 * @max_sched_scan_plan_iterations: maximum number of iterations for a single
3720 * scan plan supported by the device.
3721 * @coverage_class: current coverage class
3722 * @fw_version: firmware version for ethtool reporting
3723 * @hw_version: hardware version for ethtool reporting
3724 * @max_num_pmkids: maximum number of PMKIDs supported by device
3725 * @privid: a pointer that drivers can use to identify if an arbitrary
3726 * wiphy is theirs, e.g. in global notifiers
3727 * @bands: information about bands/channels supported by this device
3728 *
3729 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
3730 * transmitted through nl80211, points to an array indexed by interface
3731 * type
3732 *
3733 * @available_antennas_tx: bitmap of antennas which are available to be
3734 * configured as TX antennas. Antenna configuration commands will be
3735 * rejected unless this or @available_antennas_rx is set.
3736 *
3737 * @available_antennas_rx: bitmap of antennas which are available to be
3738 * configured as RX antennas. Antenna configuration commands will be
3739 * rejected unless this or @available_antennas_tx is set.
3740 *
3741 * @probe_resp_offload:
3742 * Bitmap of supported protocols for probe response offloading.
3743 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
3744 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3745 *
3746 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
3747 * may request, if implemented.
3748 *
3749 * @wowlan: WoWLAN support information
3750 * @wowlan_config: current WoWLAN configuration; this should usually not be
3751 * used since access to it is necessarily racy, use the parameter passed
3752 * to the suspend() operation instead.
3753 *
3754 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
3755 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
3756 * If null, then none can be over-ridden.
3757 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
3758 * If null, then none can be over-ridden.
3759 *
3760 * @wdev_list: the list of associated (virtual) interfaces; this list must
3761 * not be modified by the driver, but can be read with RTNL/RCU protection.
3762 *
3763 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
3764 * supports for ACL.
3765 *
3766 * @extended_capabilities: extended capabilities supported by the driver,
3767 * additional capabilities might be supported by userspace; these are
3768 * the 802.11 extended capabilities ("Extended Capabilities element")
3769 * and are in the same format as in the information element. See
3770 * 802.11-2012 8.4.2.29 for the defined fields. These are the default
3771 * extended capabilities to be used if the capabilities are not specified
3772 * for a specific interface type in iftype_ext_capab.
3773 * @extended_capabilities_mask: mask of the valid values
3774 * @extended_capabilities_len: length of the extended capabilities
3775 * @iftype_ext_capab: array of extended capabilities per interface type
3776 * @num_iftype_ext_capab: number of interface types for which extended
3777 * capabilities are specified separately.
3778 * @coalesce: packet coalescing support information
3779 *
3780 * @vendor_commands: array of vendor commands supported by the hardware
3781 * @n_vendor_commands: number of vendor commands
3782 * @vendor_events: array of vendor events supported by the hardware
3783 * @n_vendor_events: number of vendor events
3784 *
3785 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
3786 * (including P2P GO) or 0 to indicate no such limit is advertised. The
3787 * driver is allowed to advertise a theoretical limit that it can reach in
3788 * some cases, but may not always reach.
3789 *
3790 * @max_num_csa_counters: Number of supported csa_counters in beacons
3791 * and probe responses. This value should be set if the driver
3792 * wishes to limit the number of csa counters. Default (0) means
3793 * infinite.
3794 * @max_adj_channel_rssi_comp: max offset of between the channel on which the
3795 * frame was sent and the channel on which the frame was heard for which
3796 * the reported rssi is still valid. If a driver is able to compensate the
3797 * low rssi when a frame is heard on different channel, then it should set
3798 * this variable to the maximal offset for which it can compensate.
3799 * This value should be set in MHz.
3800 * @bss_select_support: bitmask indicating the BSS selection criteria supported
3801 * by the driver in the .connect() callback. The bit position maps to the
3802 * attribute indices defined in &enum nl80211_bss_select_attr.
3803 *
3804 * @cookie_counter: unique generic cookie counter, used to identify objects.
3805 * @nan_supported_bands: bands supported by the device in NAN mode, a
3806 * bitmap of &enum nl80211_band values. For instance, for
3807 * NL80211_BAND_2GHZ, bit 0 would be set
3808 * (i.e. BIT(NL80211_BAND_2GHZ)).
3809 */
3810struct wiphy {
3811 /* assign these fields before you register the wiphy */
3812
3813 /* permanent MAC address(es) */
3814 u8 perm_addr[ETH_ALEN];
3815 u8 addr_mask[ETH_ALEN];
3816
3817 struct mac_address *addresses;
3818
3819 const struct ieee80211_txrx_stypes *mgmt_stypes;
3820
3821 const struct ieee80211_iface_combination *iface_combinations;
3822 int n_iface_combinations;
3823 u16 software_iftypes;
3824
3825 u16 n_addresses;
3826
3827 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
3828 u16 interface_modes;
3829
3830 u16 max_acl_mac_addrs;
3831
3832 u32 flags, regulatory_flags, features;
3833 u8 ext_features[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES, 8)];
3834
3835 u32 ap_sme_capa;
3836
3837 enum cfg80211_signal_type signal_type;
3838
3839 int bss_priv_size;
3840 u8 max_scan_ssids;
3841 u8 max_sched_scan_reqs;
3842 u8 max_sched_scan_ssids;
3843 u8 max_match_sets;
3844 u16 max_scan_ie_len;
3845 u16 max_sched_scan_ie_len;
3846 u32 max_sched_scan_plans;
3847 u32 max_sched_scan_plan_interval;
3848 u32 max_sched_scan_plan_iterations;
3849
3850 int n_cipher_suites;
3851 const u32 *cipher_suites;
3852
3853 u8 retry_short;
3854 u8 retry_long;
3855 u32 frag_threshold;
3856 u32 rts_threshold;
3857 u8 coverage_class;
3858
3859 char fw_version[ETHTOOL_FWVERS_LEN];
3860 u32 hw_version;
3861
3862#ifdef CONFIG_PM
3863 const struct wiphy_wowlan_support *wowlan;
3864 struct cfg80211_wowlan *wowlan_config;
3865#endif
3866
3867 u16 max_remain_on_channel_duration;
3868
3869 u8 max_num_pmkids;
3870
3871 u32 available_antennas_tx;
3872 u32 available_antennas_rx;
3873
3874 /*
3875 * Bitmap of supported protocols for probe response offloading
3876 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3877 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3878 */
3879 u32 probe_resp_offload;
3880
3881 const u8 *extended_capabilities, *extended_capabilities_mask;
3882 u8 extended_capabilities_len;
3883
3884 const struct wiphy_iftype_ext_capab *iftype_ext_capab;
3885 unsigned int num_iftype_ext_capab;
3886
3887 /* If multiple wiphys are registered and you're handed e.g.
3888 * a regular netdev with assigned ieee80211_ptr, you won't
3889 * know whether it points to a wiphy your driver has registered
3890 * or not. Assign this to something global to your driver to
3891 * help determine whether you own this wiphy or not. */
3892 const void *privid;
3893
3894 struct ieee80211_supported_band *bands[NUM_NL80211_BANDS];
3895
3896 /* Lets us get back the wiphy on the callback */
3897 void (*reg_notifier)(struct wiphy *wiphy,
3898 struct regulatory_request *request);
3899
3900 /* fields below are read-only, assigned by cfg80211 */
3901
3902 const struct ieee80211_regdomain __rcu *regd;
3903
3904 /* the item in /sys/class/ieee80211/ points to this,
3905 * you need use set_wiphy_dev() (see below) */
3906 struct device dev;
3907
3908 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3909 bool registered;
3910
3911 /* dir in debugfs: ieee80211/<wiphyname> */
3912 struct dentry *debugfsdir;
3913
3914 const struct ieee80211_ht_cap *ht_capa_mod_mask;
3915 const struct ieee80211_vht_cap *vht_capa_mod_mask;
3916
3917 struct list_head wdev_list;
3918
3919 /* the network namespace this phy lives in currently */
3920 possible_net_t _net;
3921
3922#ifdef CONFIG_CFG80211_WEXT
3923 const struct iw_handler_def *wext;
3924#endif
3925
3926 const struct wiphy_coalesce_support *coalesce;
3927
3928 const struct wiphy_vendor_command *vendor_commands;
3929 const struct nl80211_vendor_cmd_info *vendor_events;
3930 int n_vendor_commands, n_vendor_events;
3931
3932 u16 max_ap_assoc_sta;
3933
3934 u8 max_num_csa_counters;
3935 u8 max_adj_channel_rssi_comp;
3936
3937 u32 bss_select_support;
3938
3939 u64 cookie_counter;
3940
3941 u8 nan_supported_bands;
3942
3943 char priv[0] __aligned(NETDEV_ALIGN);
3944};
3945
3946static inline struct net *wiphy_net(struct wiphy *wiphy)
3947{
3948 return read_pnet(&wiphy->_net);
3949}
3950
3951static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
3952{
3953 write_pnet(&wiphy->_net, net);
3954}
3955
3956/**
3957 * wiphy_priv - return priv from wiphy
3958 *
3959 * @wiphy: the wiphy whose priv pointer to return
3960 * Return: The priv of @wiphy.
3961 */
3962static inline void *wiphy_priv(struct wiphy *wiphy)
3963{
3964 BUG_ON(!wiphy);
3965 return &wiphy->priv;
3966}
3967
3968/**
3969 * priv_to_wiphy - return the wiphy containing the priv
3970 *
3971 * @priv: a pointer previously returned by wiphy_priv
3972 * Return: The wiphy of @priv.
3973 */
3974static inline struct wiphy *priv_to_wiphy(void *priv)
3975{
3976 BUG_ON(!priv);
3977 return container_of(priv, struct wiphy, priv);
3978}
3979
3980/**
3981 * set_wiphy_dev - set device pointer for wiphy
3982 *
3983 * @wiphy: The wiphy whose device to bind
3984 * @dev: The device to parent it to
3985 */
3986static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
3987{
3988 wiphy->dev.parent = dev;
3989}
3990
3991/**
3992 * wiphy_dev - get wiphy dev pointer
3993 *
3994 * @wiphy: The wiphy whose device struct to look up
3995 * Return: The dev of @wiphy.
3996 */
3997static inline struct device *wiphy_dev(struct wiphy *wiphy)
3998{
3999 return wiphy->dev.parent;
4000}
4001
4002/**
4003 * wiphy_name - get wiphy name
4004 *
4005 * @wiphy: The wiphy whose name to return
4006 * Return: The name of @wiphy.
4007 */
4008static inline const char *wiphy_name(const struct wiphy *wiphy)
4009{
4010 return dev_name(&wiphy->dev);
4011}
4012
4013/**
4014 * wiphy_new_nm - create a new wiphy for use with cfg80211
4015 *
4016 * @ops: The configuration operations for this device
4017 * @sizeof_priv: The size of the private area to allocate
4018 * @requested_name: Request a particular name.
4019 * NULL is valid value, and means use the default phy%d naming.
4020 *
4021 * Create a new wiphy and associate the given operations with it.
4022 * @sizeof_priv bytes are allocated for private use.
4023 *
4024 * Return: A pointer to the new wiphy. This pointer must be
4025 * assigned to each netdev's ieee80211_ptr for proper operation.
4026 */
4027struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
4028 const char *requested_name);
4029
4030/**
4031 * wiphy_new - create a new wiphy for use with cfg80211
4032 *
4033 * @ops: The configuration operations for this device
4034 * @sizeof_priv: The size of the private area to allocate
4035 *
4036 * Create a new wiphy and associate the given operations with it.
4037 * @sizeof_priv bytes are allocated for private use.
4038 *
4039 * Return: A pointer to the new wiphy. This pointer must be
4040 * assigned to each netdev's ieee80211_ptr for proper operation.
4041 */
4042static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops,
4043 int sizeof_priv)
4044{
4045 return wiphy_new_nm(ops, sizeof_priv, NULL);
4046}
4047
4048/**
4049 * wiphy_register - register a wiphy with cfg80211
4050 *
4051 * @wiphy: The wiphy to register.
4052 *
4053 * Return: A non-negative wiphy index or a negative error code.
4054 */
4055int wiphy_register(struct wiphy *wiphy);
4056
4057/**
4058 * wiphy_unregister - deregister a wiphy from cfg80211
4059 *
4060 * @wiphy: The wiphy to unregister.
4061 *
4062 * After this call, no more requests can be made with this priv
4063 * pointer, but the call may sleep to wait for an outstanding
4064 * request that is being handled.
4065 */
4066void wiphy_unregister(struct wiphy *wiphy);
4067
4068/**
4069 * wiphy_free - free wiphy
4070 *
4071 * @wiphy: The wiphy to free
4072 */
4073void wiphy_free(struct wiphy *wiphy);
4074
4075/* internal structs */
4076struct cfg80211_conn;
4077struct cfg80211_internal_bss;
4078struct cfg80211_cached_keys;
4079struct cfg80211_cqm_config;
4080
4081/**
4082 * struct wireless_dev - wireless device state
4083 *
4084 * For netdevs, this structure must be allocated by the driver
4085 * that uses the ieee80211_ptr field in struct net_device (this
4086 * is intentional so it can be allocated along with the netdev.)
4087 * It need not be registered then as netdev registration will
4088 * be intercepted by cfg80211 to see the new wireless device.
4089 *
4090 * For non-netdev uses, it must also be allocated by the driver
4091 * in response to the cfg80211 callbacks that require it, as
4092 * there's no netdev registration in that case it may not be
4093 * allocated outside of callback operations that return it.
4094 *
4095 * @wiphy: pointer to hardware description
4096 * @iftype: interface type
4097 * @list: (private) Used to collect the interfaces
4098 * @netdev: (private) Used to reference back to the netdev, may be %NULL
4099 * @identifier: (private) Identifier used in nl80211 to identify this
4100 * wireless device if it has no netdev
4101 * @current_bss: (private) Used by the internal configuration code
4102 * @chandef: (private) Used by the internal configuration code to track
4103 * the user-set channel definition.
4104 * @preset_chandef: (private) Used by the internal configuration code to
4105 * track the channel to be used for AP later
4106 * @bssid: (private) Used by the internal configuration code
4107 * @ssid: (private) Used by the internal configuration code
4108 * @ssid_len: (private) Used by the internal configuration code
4109 * @mesh_id_len: (private) Used by the internal configuration code
4110 * @mesh_id_up_len: (private) Used by the internal configuration code
4111 * @wext: (private) Used by the internal wireless extensions compat code
4112 * @use_4addr: indicates 4addr mode is used on this interface, must be
4113 * set by driver (if supported) on add_interface BEFORE registering the
4114 * netdev and may otherwise be used by driver read-only, will be update
4115 * by cfg80211 on change_interface
4116 * @mgmt_registrations: list of registrations for management frames
4117 * @mgmt_registrations_lock: lock for the list
4118 * @mtx: mutex used to lock data in this struct, may be used by drivers
4119 * and some API functions require it held
4120 * @beacon_interval: beacon interval used on this device for transmitting
4121 * beacons, 0 when not valid
4122 * @address: The address for this device, valid only if @netdev is %NULL
4123 * @is_running: true if this is a non-netdev device that has been started, e.g.
4124 * the P2P Device.
4125 * @cac_started: true if DFS channel availability check has been started
4126 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
4127 * @cac_time_ms: CAC time in ms
4128 * @ps: powersave mode is enabled
4129 * @ps_timeout: dynamic powersave timeout
4130 * @ap_unexpected_nlportid: (private) netlink port ID of application
4131 * registered for unexpected class 3 frames (AP mode)
4132 * @conn: (private) cfg80211 software SME connection state machine data
4133 * @connect_keys: (private) keys to set after connection is established
4134 * @conn_bss_type: connecting/connected BSS type
4135 * @conn_owner_nlportid: (private) connection owner socket port ID
4136 * @disconnect_wk: (private) auto-disconnect work
4137 * @disconnect_bssid: (private) the BSSID to use for auto-disconnect
4138 * @ibss_fixed: (private) IBSS is using fixed BSSID
4139 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
4140 * @event_list: (private) list for internal event processing
4141 * @event_lock: (private) lock for event list
4142 * @owner_nlportid: (private) owner socket port ID
4143 * @nl_owner_dead: (private) owner socket went away
4144 * @cqm_config: (private) nl80211 RSSI monitor state
4145 */
4146struct wireless_dev {
4147 struct wiphy *wiphy;
4148 enum nl80211_iftype iftype;
4149
4150 /* the remainder of this struct should be private to cfg80211 */
4151 struct list_head list;
4152 struct net_device *netdev;
4153
4154 u32 identifier;
4155
4156 struct list_head mgmt_registrations;
4157 spinlock_t mgmt_registrations_lock;
4158
4159 struct mutex mtx;
4160
4161 bool use_4addr, is_running;
4162
4163 u8 address[ETH_ALEN] __aligned(sizeof(u16));
4164
4165 /* currently used for IBSS and SME - might be rearranged later */
4166 u8 ssid[IEEE80211_MAX_SSID_LEN];
4167 u8 ssid_len, mesh_id_len, mesh_id_up_len;
4168 struct cfg80211_conn *conn;
4169 struct cfg80211_cached_keys *connect_keys;
4170 enum ieee80211_bss_type conn_bss_type;
4171 u32 conn_owner_nlportid;
4172
4173 struct work_struct disconnect_wk;
4174 u8 disconnect_bssid[ETH_ALEN];
4175
4176 struct list_head event_list;
4177 spinlock_t event_lock;
4178
4179 struct cfg80211_internal_bss *current_bss; /* associated / joined */
4180 struct cfg80211_chan_def preset_chandef;
4181 struct cfg80211_chan_def chandef;
4182
4183 bool ibss_fixed;
4184 bool ibss_dfs_possible;
4185
4186 bool ps;
4187 int ps_timeout;
4188
4189 int beacon_interval;
4190
4191 u32 ap_unexpected_nlportid;
4192
4193 u32 owner_nlportid;
4194 bool nl_owner_dead;
4195
4196 bool cac_started;
4197 unsigned long cac_start_time;
4198 unsigned int cac_time_ms;
4199
4200#ifdef CONFIG_CFG80211_WEXT
4201 /* wext data */
4202 struct {
4203 struct cfg80211_ibss_params ibss;
4204 struct cfg80211_connect_params connect;
4205 struct cfg80211_cached_keys *keys;
4206 const u8 *ie;
4207 size_t ie_len;
4208 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
4209 u8 ssid[IEEE80211_MAX_SSID_LEN];
4210 s8 default_key, default_mgmt_key;
4211 bool prev_bssid_valid;
4212 } wext;
4213#endif
4214
4215 struct cfg80211_cqm_config *cqm_config;
4216};
4217
4218static inline u8 *wdev_address(struct wireless_dev *wdev)
4219{
4220 if (wdev->netdev)
4221 return wdev->netdev->dev_addr;
4222 return wdev->address;
4223}
4224
4225static inline bool wdev_running(struct wireless_dev *wdev)
4226{
4227 if (wdev->netdev)
4228 return netif_running(wdev->netdev);
4229 return wdev->is_running;
4230}
4231
4232/**
4233 * wdev_priv - return wiphy priv from wireless_dev
4234 *
4235 * @wdev: The wireless device whose wiphy's priv pointer to return
4236 * Return: The wiphy priv of @wdev.
4237 */
4238static inline void *wdev_priv(struct wireless_dev *wdev)
4239{
4240 BUG_ON(!wdev);
4241 return wiphy_priv(wdev->wiphy);
4242}
4243
4244/**
4245 * DOC: Utility functions
4246 *
4247 * cfg80211 offers a number of utility functions that can be useful.
4248 */
4249
4250/**
4251 * ieee80211_channel_to_frequency - convert channel number to frequency
4252 * @chan: channel number
4253 * @band: band, necessary due to channel number overlap
4254 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
4255 */
4256int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
4257
4258/**
4259 * ieee80211_frequency_to_channel - convert frequency to channel number
4260 * @freq: center frequency
4261 * Return: The corresponding channel, or 0 if the conversion failed.
4262 */
4263int ieee80211_frequency_to_channel(int freq);
4264
4265/**
4266 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
4267 *
4268 * @wiphy: the struct wiphy to get the channel for
4269 * @freq: the center frequency of the channel
4270 *
4271 * Return: The channel struct from @wiphy at @freq.
4272 */
4273struct ieee80211_channel *ieee80211_get_channel(struct wiphy *wiphy, int freq);
4274
4275/**
4276 * ieee80211_get_response_rate - get basic rate for a given rate
4277 *
4278 * @sband: the band to look for rates in
4279 * @basic_rates: bitmap of basic rates
4280 * @bitrate: the bitrate for which to find the basic rate
4281 *
4282 * Return: The basic rate corresponding to a given bitrate, that
4283 * is the next lower bitrate contained in the basic rate map,
4284 * which is, for this function, given as a bitmap of indices of
4285 * rates in the band's bitrate table.
4286 */
4287struct ieee80211_rate *
4288ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
4289 u32 basic_rates, int bitrate);
4290
4291/**
4292 * ieee80211_mandatory_rates - get mandatory rates for a given band
4293 * @sband: the band to look for rates in
4294 * @scan_width: width of the control channel
4295 *
4296 * This function returns a bitmap of the mandatory rates for the given
4297 * band, bits are set according to the rate position in the bitrates array.
4298 */
4299u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband,
4300 enum nl80211_bss_scan_width scan_width);
4301
4302/*
4303 * Radiotap parsing functions -- for controlled injection support
4304 *
4305 * Implemented in net/wireless/radiotap.c
4306 * Documentation in Documentation/networking/radiotap-headers.txt
4307 */
4308
4309struct radiotap_align_size {
4310 uint8_t align:4, size:4;
4311};
4312
4313struct ieee80211_radiotap_namespace {
4314 const struct radiotap_align_size *align_size;
4315 int n_bits;
4316 uint32_t oui;
4317 uint8_t subns;
4318};
4319
4320struct ieee80211_radiotap_vendor_namespaces {
4321 const struct ieee80211_radiotap_namespace *ns;
4322 int n_ns;
4323};
4324
4325/**
4326 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
4327 * @this_arg_index: index of current arg, valid after each successful call
4328 * to ieee80211_radiotap_iterator_next()
4329 * @this_arg: pointer to current radiotap arg; it is valid after each
4330 * call to ieee80211_radiotap_iterator_next() but also after
4331 * ieee80211_radiotap_iterator_init() where it will point to
4332 * the beginning of the actual data portion
4333 * @this_arg_size: length of the current arg, for convenience
4334 * @current_namespace: pointer to the current namespace definition
4335 * (or internally %NULL if the current namespace is unknown)
4336 * @is_radiotap_ns: indicates whether the current namespace is the default
4337 * radiotap namespace or not
4338 *
4339 * @_rtheader: pointer to the radiotap header we are walking through
4340 * @_max_length: length of radiotap header in cpu byte ordering
4341 * @_arg_index: next argument index
4342 * @_arg: next argument pointer
4343 * @_next_bitmap: internal pointer to next present u32
4344 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
4345 * @_vns: vendor namespace definitions
4346 * @_next_ns_data: beginning of the next namespace's data
4347 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
4348 * next bitmap word
4349 *
4350 * Describes the radiotap parser state. Fields prefixed with an underscore
4351 * must not be used by users of the parser, only by the parser internally.
4352 */
4353
4354struct ieee80211_radiotap_iterator {
4355 struct ieee80211_radiotap_header *_rtheader;
4356 const struct ieee80211_radiotap_vendor_namespaces *_vns;
4357 const struct ieee80211_radiotap_namespace *current_namespace;
4358
4359 unsigned char *_arg, *_next_ns_data;
4360 __le32 *_next_bitmap;
4361
4362 unsigned char *this_arg;
4363 int this_arg_index;
4364 int this_arg_size;
4365
4366 int is_radiotap_ns;
4367
4368 int _max_length;
4369 int _arg_index;
4370 uint32_t _bitmap_shifter;
4371 int _reset_on_ext;
4372};
4373
4374int
4375ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator,
4376 struct ieee80211_radiotap_header *radiotap_header,
4377 int max_length,
4378 const struct ieee80211_radiotap_vendor_namespaces *vns);
4379
4380int
4381ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator);
4382
4383
4384extern const unsigned char rfc1042_header[6];
4385extern const unsigned char bridge_tunnel_header[6];
4386
4387/**
4388 * ieee80211_get_hdrlen_from_skb - get header length from data
4389 *
4390 * @skb: the frame
4391 *
4392 * Given an skb with a raw 802.11 header at the data pointer this function
4393 * returns the 802.11 header length.
4394 *
4395 * Return: The 802.11 header length in bytes (not including encryption
4396 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
4397 * 802.11 header.
4398 */
4399unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
4400
4401/**
4402 * ieee80211_hdrlen - get header length in bytes from frame control
4403 * @fc: frame control field in little-endian format
4404 * Return: The header length in bytes.
4405 */
4406unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
4407
4408/**
4409 * ieee80211_get_mesh_hdrlen - get mesh extension header length
4410 * @meshhdr: the mesh extension header, only the flags field
4411 * (first byte) will be accessed
4412 * Return: The length of the extension header, which is always at
4413 * least 6 bytes and at most 18 if address 5 and 6 are present.
4414 */
4415unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
4416
4417/**
4418 * DOC: Data path helpers
4419 *
4420 * In addition to generic utilities, cfg80211 also offers
4421 * functions that help implement the data path for devices
4422 * that do not do the 802.11/802.3 conversion on the device.
4423 */
4424
4425/**
4426 * ieee80211_data_to_8023_exthdr - convert an 802.11 data frame to 802.3
4427 * @skb: the 802.11 data frame
4428 * @ehdr: pointer to a &struct ethhdr that will get the header, instead
4429 * of it being pushed into the SKB
4430 * @addr: the device MAC address
4431 * @iftype: the virtual interface type
4432 * @data_offset: offset of payload after the 802.11 header
4433 * Return: 0 on success. Non-zero on error.
4434 */
4435int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
4436 const u8 *addr, enum nl80211_iftype iftype,
4437 u8 data_offset);
4438
4439/**
4440 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
4441 * @skb: the 802.11 data frame
4442 * @addr: the device MAC address
4443 * @iftype: the virtual interface type
4444 * Return: 0 on success. Non-zero on error.
4445 */
4446static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
4447 enum nl80211_iftype iftype)
4448{
4449 return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype, 0);
4450}
4451
4452/**
4453 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
4454 *
4455 * Decode an IEEE 802.11 A-MSDU and convert it to a list of 802.3 frames.
4456 * The @list will be empty if the decode fails. The @skb must be fully
4457 * header-less before being passed in here; it is freed in this function.
4458 *
4459 * @skb: The input A-MSDU frame without any headers.
4460 * @list: The output list of 802.3 frames. It must be allocated and
4461 * initialized by by the caller.
4462 * @addr: The device MAC address.
4463 * @iftype: The device interface type.
4464 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
4465 * @check_da: DA to check in the inner ethernet header, or NULL
4466 * @check_sa: SA to check in the inner ethernet header, or NULL
4467 */
4468void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
4469 const u8 *addr, enum nl80211_iftype iftype,
4470 const unsigned int extra_headroom,
4471 const u8 *check_da, const u8 *check_sa);
4472
4473/**
4474 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
4475 * @skb: the data frame
4476 * @qos_map: Interworking QoS mapping or %NULL if not in use
4477 * Return: The 802.1p/1d tag.
4478 */
4479unsigned int cfg80211_classify8021d(struct sk_buff *skb,
4480 struct cfg80211_qos_map *qos_map);
4481
4482/**
4483 * cfg80211_find_ie_match - match information element and byte array in data
4484 *
4485 * @eid: element ID
4486 * @ies: data consisting of IEs
4487 * @len: length of data
4488 * @match: byte array to match
4489 * @match_len: number of bytes in the match array
4490 * @match_offset: offset in the IE where the byte array should match.
4491 * If match_len is zero, this must also be set to zero.
4492 * Otherwise this must be set to 2 or more, because the first
4493 * byte is the element id, which is already compared to eid, and
4494 * the second byte is the IE length.
4495 *
4496 * Return: %NULL if the element ID could not be found or if
4497 * the element is invalid (claims to be longer than the given
4498 * data) or if the byte array doesn't match, or a pointer to the first
4499 * byte of the requested element, that is the byte containing the
4500 * element ID.
4501 *
4502 * Note: There are no checks on the element length other than
4503 * having to fit into the given data and being large enough for the
4504 * byte array to match.
4505 */
4506const u8 *cfg80211_find_ie_match(u8 eid, const u8 *ies, int len,
4507 const u8 *match, int match_len,
4508 int match_offset);
4509
4510/**
4511 * cfg80211_find_ie - find information element in data
4512 *
4513 * @eid: element ID
4514 * @ies: data consisting of IEs
4515 * @len: length of data
4516 *
4517 * Return: %NULL if the element ID could not be found or if
4518 * the element is invalid (claims to be longer than the given
4519 * data), or a pointer to the first byte of the requested
4520 * element, that is the byte containing the element ID.
4521 *
4522 * Note: There are no checks on the element length other than
4523 * having to fit into the given data.
4524 */
4525static inline const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
4526{
4527 return cfg80211_find_ie_match(eid, ies, len, NULL, 0, 0);
4528}
4529
4530/**
4531 * cfg80211_find_ext_ie - find information element with EID Extension in data
4532 *
4533 * @ext_eid: element ID Extension
4534 * @ies: data consisting of IEs
4535 * @len: length of data
4536 *
4537 * Return: %NULL if the extended element ID could not be found or if
4538 * the element is invalid (claims to be longer than the given
4539 * data), or a pointer to the first byte of the requested
4540 * element, that is the byte containing the element ID.
4541 *
4542 * Note: There are no checks on the element length other than
4543 * having to fit into the given data.
4544 */
4545static inline const u8 *cfg80211_find_ext_ie(u8 ext_eid, const u8 *ies, int len)
4546{
4547 return cfg80211_find_ie_match(WLAN_EID_EXTENSION, ies, len,
4548 &ext_eid, 1, 2);
4549}
4550
4551/**
4552 * cfg80211_find_vendor_ie - find vendor specific information element in data
4553 *
4554 * @oui: vendor OUI
4555 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any
4556 * @ies: data consisting of IEs
4557 * @len: length of data
4558 *
4559 * Return: %NULL if the vendor specific element ID could not be found or if the
4560 * element is invalid (claims to be longer than the given data), or a pointer to
4561 * the first byte of the requested element, that is the byte containing the
4562 * element ID.
4563 *
4564 * Note: There are no checks on the element length other than having to fit into
4565 * the given data.
4566 */
4567const u8 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
4568 const u8 *ies, int len);
4569
4570/**
4571 * DOC: Regulatory enforcement infrastructure
4572 *
4573 * TODO
4574 */
4575
4576/**
4577 * regulatory_hint - driver hint to the wireless core a regulatory domain
4578 * @wiphy: the wireless device giving the hint (used only for reporting
4579 * conflicts)
4580 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
4581 * should be in. If @rd is set this should be NULL. Note that if you
4582 * set this to NULL you should still set rd->alpha2 to some accepted
4583 * alpha2.
4584 *
4585 * Wireless drivers can use this function to hint to the wireless core
4586 * what it believes should be the current regulatory domain by
4587 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
4588 * domain should be in or by providing a completely build regulatory domain.
4589 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
4590 * for a regulatory domain structure for the respective country.
4591 *
4592 * The wiphy must have been registered to cfg80211 prior to this call.
4593 * For cfg80211 drivers this means you must first use wiphy_register(),
4594 * for mac80211 drivers you must first use ieee80211_register_hw().
4595 *
4596 * Drivers should check the return value, its possible you can get
4597 * an -ENOMEM.
4598 *
4599 * Return: 0 on success. -ENOMEM.
4600 */
4601int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
4602
4603/**
4604 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
4605 * @wiphy: the wireless device we want to process the regulatory domain on
4606 * @rd: the regulatory domain informatoin to use for this wiphy
4607 *
4608 * Set the regulatory domain information for self-managed wiphys, only they
4609 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
4610 * information.
4611 *
4612 * Return: 0 on success. -EINVAL, -EPERM
4613 */
4614int regulatory_set_wiphy_regd(struct wiphy *wiphy,
4615 struct ieee80211_regdomain *rd);
4616
4617/**
4618 * regulatory_set_wiphy_regd_sync_rtnl - set regdom for self-managed drivers
4619 * @wiphy: the wireless device we want to process the regulatory domain on
4620 * @rd: the regulatory domain information to use for this wiphy
4621 *
4622 * This functions requires the RTNL to be held and applies the new regdomain
4623 * synchronously to this wiphy. For more details see
4624 * regulatory_set_wiphy_regd().
4625 *
4626 * Return: 0 on success. -EINVAL, -EPERM
4627 */
4628int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
4629 struct ieee80211_regdomain *rd);
4630
4631/**
4632 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
4633 * @wiphy: the wireless device we want to process the regulatory domain on
4634 * @regd: the custom regulatory domain to use for this wiphy
4635 *
4636 * Drivers can sometimes have custom regulatory domains which do not apply
4637 * to a specific country. Drivers can use this to apply such custom regulatory
4638 * domains. This routine must be called prior to wiphy registration. The
4639 * custom regulatory domain will be trusted completely and as such previous
4640 * default channel settings will be disregarded. If no rule is found for a
4641 * channel on the regulatory domain the channel will be disabled.
4642 * Drivers using this for a wiphy should also set the wiphy flag
4643 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
4644 * that called this helper.
4645 */
4646void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
4647 const struct ieee80211_regdomain *regd);
4648
4649/**
4650 * freq_reg_info - get regulatory information for the given frequency
4651 * @wiphy: the wiphy for which we want to process this rule for
4652 * @center_freq: Frequency in KHz for which we want regulatory information for
4653 *
4654 * Use this function to get the regulatory rule for a specific frequency on
4655 * a given wireless device. If the device has a specific regulatory domain
4656 * it wants to follow we respect that unless a country IE has been received
4657 * and processed already.
4658 *
4659 * Return: A valid pointer, or, when an error occurs, for example if no rule
4660 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
4661 * check and PTR_ERR() to obtain the numeric return value. The numeric return
4662 * value will be -ERANGE if we determine the given center_freq does not even
4663 * have a regulatory rule for a frequency range in the center_freq's band.
4664 * See freq_in_rule_band() for our current definition of a band -- this is
4665 * purely subjective and right now it's 802.11 specific.
4666 */
4667const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
4668 u32 center_freq);
4669
4670/**
4671 * reg_initiator_name - map regulatory request initiator enum to name
4672 * @initiator: the regulatory request initiator
4673 *
4674 * You can use this to map the regulatory request initiator enum to a
4675 * proper string representation.
4676 */
4677const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
4678
4679/**
4680 * DOC: Internal regulatory db functions
4681 *
4682 */
4683
4684/**
4685 * reg_query_regdb_wmm - Query internal regulatory db for wmm rule
4686 * Regulatory self-managed driver can use it to proactively
4687 *
4688 * @alpha2: the ISO/IEC 3166 alpha2 wmm rule to be queried.
4689 * @freq: the freqency(in MHz) to be queried.
4690 * @ptr: pointer where the regdb wmm data is to be stored (or %NULL if
4691 * irrelevant). This can be used later for deduplication.
4692 * @rule: pointer to store the wmm rule from the regulatory db.
4693 *
4694 * Self-managed wireless drivers can use this function to query
4695 * the internal regulatory database to check whether the given
4696 * ISO/IEC 3166 alpha2 country and freq have wmm rule limitations.
4697 *
4698 * Drivers should check the return value, its possible you can get
4699 * an -ENODATA.
4700 *
4701 * Return: 0 on success. -ENODATA.
4702 */
4703int reg_query_regdb_wmm(char *alpha2, int freq, u32 *ptr,
4704 struct ieee80211_wmm_rule *rule);
4705
4706/*
4707 * callbacks for asynchronous cfg80211 methods, notification
4708 * functions and BSS handling helpers
4709 */
4710
4711/**
4712 * cfg80211_scan_done - notify that scan finished
4713 *
4714 * @request: the corresponding scan request
4715 * @info: information about the completed scan
4716 */
4717void cfg80211_scan_done(struct cfg80211_scan_request *request,
4718 struct cfg80211_scan_info *info);
4719
4720/**
4721 * cfg80211_sched_scan_results - notify that new scan results are available
4722 *
4723 * @wiphy: the wiphy which got scheduled scan results
4724 * @reqid: identifier for the related scheduled scan request
4725 */
4726void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid);
4727
4728/**
4729 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
4730 *
4731 * @wiphy: the wiphy on which the scheduled scan stopped
4732 * @reqid: identifier for the related scheduled scan request
4733 *
4734 * The driver can call this function to inform cfg80211 that the
4735 * scheduled scan had to be stopped, for whatever reason. The driver
4736 * is then called back via the sched_scan_stop operation when done.
4737 */
4738void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid);
4739
4740/**
4741 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped
4742 *
4743 * @wiphy: the wiphy on which the scheduled scan stopped
4744 * @reqid: identifier for the related scheduled scan request
4745 *
4746 * The driver can call this function to inform cfg80211 that the
4747 * scheduled scan had to be stopped, for whatever reason. The driver
4748 * is then called back via the sched_scan_stop operation when done.
4749 * This function should be called with rtnl locked.
4750 */
4751void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy, u64 reqid);
4752
4753/**
4754 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame
4755 * @wiphy: the wiphy reporting the BSS
4756 * @data: the BSS metadata
4757 * @mgmt: the management frame (probe response or beacon)
4758 * @len: length of the management frame
4759 * @gfp: context flags
4760 *
4761 * This informs cfg80211 that BSS information was found and
4762 * the BSS should be updated/added.
4763 *
4764 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4765 * Or %NULL on error.
4766 */
4767struct cfg80211_bss * __must_check
4768cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
4769 struct cfg80211_inform_bss *data,
4770 struct ieee80211_mgmt *mgmt, size_t len,
4771 gfp_t gfp);
4772
4773static inline struct cfg80211_bss * __must_check
4774cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
4775 struct ieee80211_channel *rx_channel,
4776 enum nl80211_bss_scan_width scan_width,
4777 struct ieee80211_mgmt *mgmt, size_t len,
4778 s32 signal, gfp_t gfp)
4779{
4780 struct cfg80211_inform_bss data = {
4781 .chan = rx_channel,
4782 .scan_width = scan_width,
4783 .signal = signal,
4784 };
4785
4786 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4787}
4788
4789static inline struct cfg80211_bss * __must_check
4790cfg80211_inform_bss_frame(struct wiphy *wiphy,
4791 struct ieee80211_channel *rx_channel,
4792 struct ieee80211_mgmt *mgmt, size_t len,
4793 s32 signal, gfp_t gfp)
4794{
4795 struct cfg80211_inform_bss data = {
4796 .chan = rx_channel,
4797 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4798 .signal = signal,
4799 };
4800
4801 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4802}
4803
4804/**
4805 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
4806 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
4807 * from a beacon or probe response
4808 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
4809 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
4810 */
4811enum cfg80211_bss_frame_type {
4812 CFG80211_BSS_FTYPE_UNKNOWN,
4813 CFG80211_BSS_FTYPE_BEACON,
4814 CFG80211_BSS_FTYPE_PRESP,
4815};
4816
4817/**
4818 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS
4819 *
4820 * @wiphy: the wiphy reporting the BSS
4821 * @data: the BSS metadata
4822 * @ftype: frame type (if known)
4823 * @bssid: the BSSID of the BSS
4824 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
4825 * @capability: the capability field sent by the peer
4826 * @beacon_interval: the beacon interval announced by the peer
4827 * @ie: additional IEs sent by the peer
4828 * @ielen: length of the additional IEs
4829 * @gfp: context flags
4830 *
4831 * This informs cfg80211 that BSS information was found and
4832 * the BSS should be updated/added.
4833 *
4834 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4835 * Or %NULL on error.
4836 */
4837struct cfg80211_bss * __must_check
4838cfg80211_inform_bss_data(struct wiphy *wiphy,
4839 struct cfg80211_inform_bss *data,
4840 enum cfg80211_bss_frame_type ftype,
4841 const u8 *bssid, u64 tsf, u16 capability,
4842 u16 beacon_interval, const u8 *ie, size_t ielen,
4843 gfp_t gfp);
4844
4845static inline struct cfg80211_bss * __must_check
4846cfg80211_inform_bss_width(struct wiphy *wiphy,
4847 struct ieee80211_channel *rx_channel,
4848 enum nl80211_bss_scan_width scan_width,
4849 enum cfg80211_bss_frame_type ftype,
4850 const u8 *bssid, u64 tsf, u16 capability,
4851 u16 beacon_interval, const u8 *ie, size_t ielen,
4852 s32 signal, gfp_t gfp)
4853{
4854 struct cfg80211_inform_bss data = {
4855 .chan = rx_channel,
4856 .scan_width = scan_width,
4857 .signal = signal,
4858 };
4859
4860 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4861 capability, beacon_interval, ie, ielen,
4862 gfp);
4863}
4864
4865static inline struct cfg80211_bss * __must_check
4866cfg80211_inform_bss(struct wiphy *wiphy,
4867 struct ieee80211_channel *rx_channel,
4868 enum cfg80211_bss_frame_type ftype,
4869 const u8 *bssid, u64 tsf, u16 capability,
4870 u16 beacon_interval, const u8 *ie, size_t ielen,
4871 s32 signal, gfp_t gfp)
4872{
4873 struct cfg80211_inform_bss data = {
4874 .chan = rx_channel,
4875 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4876 .signal = signal,
4877 };
4878
4879 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4880 capability, beacon_interval, ie, ielen,
4881 gfp);
4882}
4883
4884/**
4885 * cfg80211_get_bss - get a BSS reference
4886 * @wiphy: the wiphy this BSS struct belongs to
4887 * @channel: the channel to search on (or %NULL)
4888 * @bssid: the desired BSSID (or %NULL)
4889 * @ssid: the desired SSID (or %NULL)
4890 * @ssid_len: length of the SSID (or 0)
4891 * @bss_type: type of BSS, see &enum ieee80211_bss_type
4892 * @privacy: privacy filter, see &enum ieee80211_privacy
4893 */
4894struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
4895 struct ieee80211_channel *channel,
4896 const u8 *bssid,
4897 const u8 *ssid, size_t ssid_len,
4898 enum ieee80211_bss_type bss_type,
4899 enum ieee80211_privacy privacy);
4900static inline struct cfg80211_bss *
4901cfg80211_get_ibss(struct wiphy *wiphy,
4902 struct ieee80211_channel *channel,
4903 const u8 *ssid, size_t ssid_len)
4904{
4905 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
4906 IEEE80211_BSS_TYPE_IBSS,
4907 IEEE80211_PRIVACY_ANY);
4908}
4909
4910/**
4911 * cfg80211_ref_bss - reference BSS struct
4912 * @wiphy: the wiphy this BSS struct belongs to
4913 * @bss: the BSS struct to reference
4914 *
4915 * Increments the refcount of the given BSS struct.
4916 */
4917void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4918
4919/**
4920 * cfg80211_put_bss - unref BSS struct
4921 * @wiphy: the wiphy this BSS struct belongs to
4922 * @bss: the BSS struct
4923 *
4924 * Decrements the refcount of the given BSS struct.
4925 */
4926void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4927
4928/**
4929 * cfg80211_unlink_bss - unlink BSS from internal data structures
4930 * @wiphy: the wiphy
4931 * @bss: the bss to remove
4932 *
4933 * This function removes the given BSS from the internal data structures
4934 * thereby making it no longer show up in scan results etc. Use this
4935 * function when you detect a BSS is gone. Normally BSSes will also time
4936 * out, so it is not necessary to use this function at all.
4937 */
4938void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4939
4940static inline enum nl80211_bss_scan_width
4941cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef)
4942{
4943 switch (chandef->width) {
4944 case NL80211_CHAN_WIDTH_5:
4945 return NL80211_BSS_CHAN_WIDTH_5;
4946 case NL80211_CHAN_WIDTH_10:
4947 return NL80211_BSS_CHAN_WIDTH_10;
4948 default:
4949 return NL80211_BSS_CHAN_WIDTH_20;
4950 }
4951}
4952
4953/**
4954 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
4955 * @dev: network device
4956 * @buf: authentication frame (header + body)
4957 * @len: length of the frame data
4958 *
4959 * This function is called whenever an authentication, disassociation or
4960 * deauthentication frame has been received and processed in station mode.
4961 * After being asked to authenticate via cfg80211_ops::auth() the driver must
4962 * call either this function or cfg80211_auth_timeout().
4963 * After being asked to associate via cfg80211_ops::assoc() the driver must
4964 * call either this function or cfg80211_auth_timeout().
4965 * While connected, the driver must calls this for received and processed
4966 * disassociation and deauthentication frames. If the frame couldn't be used
4967 * because it was unprotected, the driver must call the function
4968 * cfg80211_rx_unprot_mlme_mgmt() instead.
4969 *
4970 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4971 */
4972void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
4973
4974/**
4975 * cfg80211_auth_timeout - notification of timed out authentication
4976 * @dev: network device
4977 * @addr: The MAC address of the device with which the authentication timed out
4978 *
4979 * This function may sleep. The caller must hold the corresponding wdev's
4980 * mutex.
4981 */
4982void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
4983
4984/**
4985 * cfg80211_rx_assoc_resp - notification of processed association response
4986 * @dev: network device
4987 * @bss: the BSS that association was requested with, ownership of the pointer
4988 * moves to cfg80211 in this call
4989 * @buf: authentication frame (header + body)
4990 * @len: length of the frame data
4991 * @uapsd_queues: bitmap of queues configured for uapsd. Same format
4992 * as the AC bitmap in the QoS info field
4993 *
4994 * After being asked to associate via cfg80211_ops::assoc() the driver must
4995 * call either this function or cfg80211_auth_timeout().
4996 *
4997 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4998 */
4999void cfg80211_rx_assoc_resp(struct net_device *dev,
5000 struct cfg80211_bss *bss,
5001 const u8 *buf, size_t len,
5002 int uapsd_queues);
5003
5004/**
5005 * cfg80211_assoc_timeout - notification of timed out association
5006 * @dev: network device
5007 * @bss: The BSS entry with which association timed out.
5008 *
5009 * This function may sleep. The caller must hold the corresponding wdev's mutex.
5010 */
5011void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss);
5012
5013/**
5014 * cfg80211_abandon_assoc - notify cfg80211 of abandoned association attempt
5015 * @dev: network device
5016 * @bss: The BSS entry with which association was abandoned.
5017 *
5018 * Call this whenever - for reasons reported through other API, like deauth RX,
5019 * an association attempt was abandoned.
5020 * This function may sleep. The caller must hold the corresponding wdev's mutex.
5021 */
5022void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss);
5023
5024/**
5025 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
5026 * @dev: network device
5027 * @buf: 802.11 frame (header + body)
5028 * @len: length of the frame data
5029 *
5030 * This function is called whenever deauthentication has been processed in
5031 * station mode. This includes both received deauthentication frames and
5032 * locally generated ones. This function may sleep. The caller must hold the
5033 * corresponding wdev's mutex.
5034 */
5035void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
5036
5037/**
5038 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
5039 * @dev: network device
5040 * @buf: deauthentication frame (header + body)
5041 * @len: length of the frame data
5042 *
5043 * This function is called whenever a received deauthentication or dissassoc
5044 * frame has been dropped in station mode because of MFP being used but the
5045 * frame was not protected. This function may sleep.
5046 */
5047void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
5048 const u8 *buf, size_t len);
5049
5050/**
5051 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
5052 * @dev: network device
5053 * @addr: The source MAC address of the frame
5054 * @key_type: The key type that the received frame used
5055 * @key_id: Key identifier (0..3). Can be -1 if missing.
5056 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
5057 * @gfp: allocation flags
5058 *
5059 * This function is called whenever the local MAC detects a MIC failure in a
5060 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
5061 * primitive.
5062 */
5063void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
5064 enum nl80211_key_type key_type, int key_id,
5065 const u8 *tsc, gfp_t gfp);
5066
5067/**
5068 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
5069 *
5070 * @dev: network device
5071 * @bssid: the BSSID of the IBSS joined
5072 * @channel: the channel of the IBSS joined
5073 * @gfp: allocation flags
5074 *
5075 * This function notifies cfg80211 that the device joined an IBSS or
5076 * switched to a different BSSID. Before this function can be called,
5077 * either a beacon has to have been received from the IBSS, or one of
5078 * the cfg80211_inform_bss{,_frame} functions must have been called
5079 * with the locally generated beacon -- this guarantees that there is
5080 * always a scan result for this IBSS. cfg80211 will handle the rest.
5081 */
5082void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
5083 struct ieee80211_channel *channel, gfp_t gfp);
5084
5085/**
5086 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
5087 *
5088 * @dev: network device
5089 * @macaddr: the MAC address of the new candidate
5090 * @ie: information elements advertised by the peer candidate
5091 * @ie_len: lenght of the information elements buffer
5092 * @gfp: allocation flags
5093 *
5094 * This function notifies cfg80211 that the mesh peer candidate has been
5095 * detected, most likely via a beacon or, less likely, via a probe response.
5096 * cfg80211 then sends a notification to userspace.
5097 */
5098void cfg80211_notify_new_peer_candidate(struct net_device *dev,
5099 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
5100
5101/**
5102 * DOC: RFkill integration
5103 *
5104 * RFkill integration in cfg80211 is almost invisible to drivers,
5105 * as cfg80211 automatically registers an rfkill instance for each
5106 * wireless device it knows about. Soft kill is also translated
5107 * into disconnecting and turning all interfaces off, drivers are
5108 * expected to turn off the device when all interfaces are down.
5109 *
5110 * However, devices may have a hard RFkill line, in which case they
5111 * also need to interact with the rfkill subsystem, via cfg80211.
5112 * They can do this with a few helper functions documented here.
5113 */
5114
5115/**
5116 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
5117 * @wiphy: the wiphy
5118 * @blocked: block status
5119 */
5120void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
5121
5122/**
5123 * wiphy_rfkill_start_polling - start polling rfkill
5124 * @wiphy: the wiphy
5125 */
5126void wiphy_rfkill_start_polling(struct wiphy *wiphy);
5127
5128/**
5129 * wiphy_rfkill_stop_polling - stop polling rfkill
5130 * @wiphy: the wiphy
5131 */
5132void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
5133
5134/**
5135 * DOC: Vendor commands
5136 *
5137 * Occasionally, there are special protocol or firmware features that
5138 * can't be implemented very openly. For this and similar cases, the
5139 * vendor command functionality allows implementing the features with
5140 * (typically closed-source) userspace and firmware, using nl80211 as
5141 * the configuration mechanism.
5142 *
5143 * A driver supporting vendor commands must register them as an array
5144 * in struct wiphy, with handlers for each one, each command has an
5145 * OUI and sub command ID to identify it.
5146 *
5147 * Note that this feature should not be (ab)used to implement protocol
5148 * features that could openly be shared across drivers. In particular,
5149 * it must never be required to use vendor commands to implement any
5150 * "normal" functionality that higher-level userspace like connection
5151 * managers etc. need.
5152 */
5153
5154struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
5155 enum nl80211_commands cmd,
5156 enum nl80211_attrs attr,
5157 int approxlen);
5158
5159struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
5160 struct wireless_dev *wdev,
5161 enum nl80211_commands cmd,
5162 enum nl80211_attrs attr,
5163 int vendor_event_idx,
5164 int approxlen, gfp_t gfp);
5165
5166void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp);
5167
5168/**
5169 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
5170 * @wiphy: the wiphy
5171 * @approxlen: an upper bound of the length of the data that will
5172 * be put into the skb
5173 *
5174 * This function allocates and pre-fills an skb for a reply to
5175 * a vendor command. Since it is intended for a reply, calling
5176 * it outside of a vendor command's doit() operation is invalid.
5177 *
5178 * The returned skb is pre-filled with some identifying data in
5179 * a way that any data that is put into the skb (with skb_put(),
5180 * nla_put() or similar) will end up being within the
5181 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
5182 * with the skb is adding data for the corresponding userspace tool
5183 * which can then read that data out of the vendor data attribute.
5184 * You must not modify the skb in any other way.
5185 *
5186 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
5187 * its error code as the result of the doit() operation.
5188 *
5189 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5190 */
5191static inline struct sk_buff *
5192cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
5193{
5194 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR,
5195 NL80211_ATTR_VENDOR_DATA, approxlen);
5196}
5197
5198/**
5199 * cfg80211_vendor_cmd_reply - send the reply skb
5200 * @skb: The skb, must have been allocated with
5201 * cfg80211_vendor_cmd_alloc_reply_skb()
5202 *
5203 * Since calling this function will usually be the last thing
5204 * before returning from the vendor command doit() you should
5205 * return the error code. Note that this function consumes the
5206 * skb regardless of the return value.
5207 *
5208 * Return: An error code or 0 on success.
5209 */
5210int cfg80211_vendor_cmd_reply(struct sk_buff *skb);
5211
5212/**
5213 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
5214 * @wiphy: the wiphy
5215 * @wdev: the wireless device
5216 * @event_idx: index of the vendor event in the wiphy's vendor_events
5217 * @approxlen: an upper bound of the length of the data that will
5218 * be put into the skb
5219 * @gfp: allocation flags
5220 *
5221 * This function allocates and pre-fills an skb for an event on the
5222 * vendor-specific multicast group.
5223 *
5224 * If wdev != NULL, both the ifindex and identifier of the specified
5225 * wireless device are added to the event message before the vendor data
5226 * attribute.
5227 *
5228 * When done filling the skb, call cfg80211_vendor_event() with the
5229 * skb to send the event.
5230 *
5231 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5232 */
5233static inline struct sk_buff *
5234cfg80211_vendor_event_alloc(struct wiphy *wiphy, struct wireless_dev *wdev,
5235 int approxlen, int event_idx, gfp_t gfp)
5236{
5237 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR,
5238 NL80211_ATTR_VENDOR_DATA,
5239 event_idx, approxlen, gfp);
5240}
5241
5242/**
5243 * cfg80211_vendor_event - send the event
5244 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
5245 * @gfp: allocation flags
5246 *
5247 * This function sends the given @skb, which must have been allocated
5248 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
5249 */
5250static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp)
5251{
5252 __cfg80211_send_event_skb(skb, gfp);
5253}
5254
5255#ifdef CONFIG_NL80211_TESTMODE
5256/**
5257 * DOC: Test mode
5258 *
5259 * Test mode is a set of utility functions to allow drivers to
5260 * interact with driver-specific tools to aid, for instance,
5261 * factory programming.
5262 *
5263 * This chapter describes how drivers interact with it, for more
5264 * information see the nl80211 book's chapter on it.
5265 */
5266
5267/**
5268 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
5269 * @wiphy: the wiphy
5270 * @approxlen: an upper bound of the length of the data that will
5271 * be put into the skb
5272 *
5273 * This function allocates and pre-fills an skb for a reply to
5274 * the testmode command. Since it is intended for a reply, calling
5275 * it outside of the @testmode_cmd operation is invalid.
5276 *
5277 * The returned skb is pre-filled with the wiphy index and set up in
5278 * a way that any data that is put into the skb (with skb_put(),
5279 * nla_put() or similar) will end up being within the
5280 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
5281 * with the skb is adding data for the corresponding userspace tool
5282 * which can then read that data out of the testdata attribute. You
5283 * must not modify the skb in any other way.
5284 *
5285 * When done, call cfg80211_testmode_reply() with the skb and return
5286 * its error code as the result of the @testmode_cmd operation.
5287 *
5288 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5289 */
5290static inline struct sk_buff *
5291cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
5292{
5293 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE,
5294 NL80211_ATTR_TESTDATA, approxlen);
5295}
5296
5297/**
5298 * cfg80211_testmode_reply - send the reply skb
5299 * @skb: The skb, must have been allocated with
5300 * cfg80211_testmode_alloc_reply_skb()
5301 *
5302 * Since calling this function will usually be the last thing
5303 * before returning from the @testmode_cmd you should return
5304 * the error code. Note that this function consumes the skb
5305 * regardless of the return value.
5306 *
5307 * Return: An error code or 0 on success.
5308 */
5309static inline int cfg80211_testmode_reply(struct sk_buff *skb)
5310{
5311 return cfg80211_vendor_cmd_reply(skb);
5312}
5313
5314/**
5315 * cfg80211_testmode_alloc_event_skb - allocate testmode event
5316 * @wiphy: the wiphy
5317 * @approxlen: an upper bound of the length of the data that will
5318 * be put into the skb
5319 * @gfp: allocation flags
5320 *
5321 * This function allocates and pre-fills an skb for an event on the
5322 * testmode multicast group.
5323 *
5324 * The returned skb is set up in the same way as with
5325 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
5326 * there, you should simply add data to it that will then end up in the
5327 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
5328 * in any other way.
5329 *
5330 * When done filling the skb, call cfg80211_testmode_event() with the
5331 * skb to send the event.
5332 *
5333 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5334 */
5335static inline struct sk_buff *
5336cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp)
5337{
5338 return __cfg80211_alloc_event_skb(wiphy, NULL, NL80211_CMD_TESTMODE,
5339 NL80211_ATTR_TESTDATA, -1,
5340 approxlen, gfp);
5341}
5342
5343/**
5344 * cfg80211_testmode_event - send the event
5345 * @skb: The skb, must have been allocated with
5346 * cfg80211_testmode_alloc_event_skb()
5347 * @gfp: allocation flags
5348 *
5349 * This function sends the given @skb, which must have been allocated
5350 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
5351 * consumes it.
5352 */
5353static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5354{
5355 __cfg80211_send_event_skb(skb, gfp);
5356}
5357
5358#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
5359#define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
5360#else
5361#define CFG80211_TESTMODE_CMD(cmd)
5362#define CFG80211_TESTMODE_DUMP(cmd)
5363#endif
5364
5365/**
5366 * struct cfg80211_connect_resp_params - Connection response params
5367 * @status: Status code, %WLAN_STATUS_SUCCESS for successful connection, use
5368 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5369 * the real status code for failures. If this call is used to report a
5370 * failure due to a timeout (e.g., not receiving an Authentication frame
5371 * from the AP) instead of an explicit rejection by the AP, -1 is used to
5372 * indicate that this is a failure, but without a status code.
5373 * @timeout_reason is used to report the reason for the timeout in that
5374 * case.
5375 * @bssid: The BSSID of the AP (may be %NULL)
5376 * @bss: Entry of bss to which STA got connected to, can be obtained through
5377 * cfg80211_get_bss() (may be %NULL). Only one parameter among @bssid and
5378 * @bss needs to be specified.
5379 * @req_ie: Association request IEs (may be %NULL)
5380 * @req_ie_len: Association request IEs length
5381 * @resp_ie: Association response IEs (may be %NULL)
5382 * @resp_ie_len: Association response IEs length
5383 * @fils_kek: KEK derived from a successful FILS connection (may be %NULL)
5384 * @fils_kek_len: Length of @fils_kek in octets
5385 * @update_erp_next_seq_num: Boolean value to specify whether the value in
5386 * @fils_erp_next_seq_num is valid.
5387 * @fils_erp_next_seq_num: The next sequence number to use in ERP message in
5388 * FILS Authentication. This value should be specified irrespective of the
5389 * status for a FILS connection.
5390 * @pmk: A new PMK if derived from a successful FILS connection (may be %NULL).
5391 * @pmk_len: Length of @pmk in octets
5392 * @pmkid: A new PMKID if derived from a successful FILS connection or the PMKID
5393 * used for this FILS connection (may be %NULL).
5394 * @timeout_reason: Reason for connection timeout. This is used when the
5395 * connection fails due to a timeout instead of an explicit rejection from
5396 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
5397 * not known. This value is used only if @status < 0 to indicate that the
5398 * failure is due to a timeout and not due to explicit rejection by the AP.
5399 * This value is ignored in other cases (@status >= 0).
5400 */
5401struct cfg80211_connect_resp_params {
5402 int status;
5403 const u8 *bssid;
5404 struct cfg80211_bss *bss;
5405 const u8 *req_ie;
5406 size_t req_ie_len;
5407 const u8 *resp_ie;
5408 size_t resp_ie_len;
5409 const u8 *fils_kek;
5410 size_t fils_kek_len;
5411 bool update_erp_next_seq_num;
5412 u16 fils_erp_next_seq_num;
5413 const u8 *pmk;
5414 size_t pmk_len;
5415 const u8 *pmkid;
5416 enum nl80211_timeout_reason timeout_reason;
5417};
5418
5419/**
5420 * cfg80211_connect_done - notify cfg80211 of connection result
5421 *
5422 * @dev: network device
5423 * @params: connection response parameters
5424 * @gfp: allocation flags
5425 *
5426 * It should be called by the underlying driver once execution of the connection
5427 * request from connect() has been completed. This is similar to
5428 * cfg80211_connect_bss(), but takes a structure pointer for connection response
5429 * parameters. Only one of the functions among cfg80211_connect_bss(),
5430 * cfg80211_connect_result(), cfg80211_connect_timeout(),
5431 * and cfg80211_connect_done() should be called.
5432 */
5433void cfg80211_connect_done(struct net_device *dev,
5434 struct cfg80211_connect_resp_params *params,
5435 gfp_t gfp);
5436
5437/**
5438 * cfg80211_connect_bss - notify cfg80211 of connection result
5439 *
5440 * @dev: network device
5441 * @bssid: the BSSID of the AP
5442 * @bss: entry of bss to which STA got connected to, can be obtained
5443 * through cfg80211_get_bss (may be %NULL)
5444 * @req_ie: association request IEs (maybe be %NULL)
5445 * @req_ie_len: association request IEs length
5446 * @resp_ie: association response IEs (may be %NULL)
5447 * @resp_ie_len: assoc response IEs length
5448 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
5449 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5450 * the real status code for failures. If this call is used to report a
5451 * failure due to a timeout (e.g., not receiving an Authentication frame
5452 * from the AP) instead of an explicit rejection by the AP, -1 is used to
5453 * indicate that this is a failure, but without a status code.
5454 * @timeout_reason is used to report the reason for the timeout in that
5455 * case.
5456 * @gfp: allocation flags
5457 * @timeout_reason: reason for connection timeout. This is used when the
5458 * connection fails due to a timeout instead of an explicit rejection from
5459 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
5460 * not known. This value is used only if @status < 0 to indicate that the
5461 * failure is due to a timeout and not due to explicit rejection by the AP.
5462 * This value is ignored in other cases (@status >= 0).
5463 *
5464 * It should be called by the underlying driver once execution of the connection
5465 * request from connect() has been completed. This is similar to
5466 * cfg80211_connect_result(), but with the option of identifying the exact bss
5467 * entry for the connection. Only one of the functions among
5468 * cfg80211_connect_bss(), cfg80211_connect_result(),
5469 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5470 */
5471static inline void
5472cfg80211_connect_bss(struct net_device *dev, const u8 *bssid,
5473 struct cfg80211_bss *bss, const u8 *req_ie,
5474 size_t req_ie_len, const u8 *resp_ie,
5475 size_t resp_ie_len, int status, gfp_t gfp,
5476 enum nl80211_timeout_reason timeout_reason)
5477{
5478 struct cfg80211_connect_resp_params params;
5479
5480 memset(¶ms, 0, sizeof(params));
5481 params.status = status;
5482 params.bssid = bssid;
5483 params.bss = bss;
5484 params.req_ie = req_ie;
5485 params.req_ie_len = req_ie_len;
5486 params.resp_ie = resp_ie;
5487 params.resp_ie_len = resp_ie_len;
5488 params.timeout_reason = timeout_reason;
5489
5490 cfg80211_connect_done(dev, ¶ms, gfp);
5491}
5492
5493/**
5494 * cfg80211_connect_result - notify cfg80211 of connection result
5495 *
5496 * @dev: network device
5497 * @bssid: the BSSID of the AP
5498 * @req_ie: association request IEs (maybe be %NULL)
5499 * @req_ie_len: association request IEs length
5500 * @resp_ie: association response IEs (may be %NULL)
5501 * @resp_ie_len: assoc response IEs length
5502 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
5503 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5504 * the real status code for failures.
5505 * @gfp: allocation flags
5506 *
5507 * It should be called by the underlying driver once execution of the connection
5508 * request from connect() has been completed. This is similar to
5509 * cfg80211_connect_bss() which allows the exact bss entry to be specified. Only
5510 * one of the functions among cfg80211_connect_bss(), cfg80211_connect_result(),
5511 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5512 */
5513static inline void
5514cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
5515 const u8 *req_ie, size_t req_ie_len,
5516 const u8 *resp_ie, size_t resp_ie_len,
5517 u16 status, gfp_t gfp)
5518{
5519 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, resp_ie,
5520 resp_ie_len, status, gfp,
5521 NL80211_TIMEOUT_UNSPECIFIED);
5522}
5523
5524/**
5525 * cfg80211_connect_timeout - notify cfg80211 of connection timeout
5526 *
5527 * @dev: network device
5528 * @bssid: the BSSID of the AP
5529 * @req_ie: association request IEs (maybe be %NULL)
5530 * @req_ie_len: association request IEs length
5531 * @gfp: allocation flags
5532 * @timeout_reason: reason for connection timeout.
5533 *
5534 * It should be called by the underlying driver whenever connect() has failed
5535 * in a sequence where no explicit authentication/association rejection was
5536 * received from the AP. This could happen, e.g., due to not being able to send
5537 * out the Authentication or Association Request frame or timing out while
5538 * waiting for the response. Only one of the functions among
5539 * cfg80211_connect_bss(), cfg80211_connect_result(),
5540 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5541 */
5542static inline void
5543cfg80211_connect_timeout(struct net_device *dev, const u8 *bssid,
5544 const u8 *req_ie, size_t req_ie_len, gfp_t gfp,
5545 enum nl80211_timeout_reason timeout_reason)
5546{
5547 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, NULL, 0, -1,
5548 gfp, timeout_reason);
5549}
5550
5551/**
5552 * struct cfg80211_roam_info - driver initiated roaming information
5553 *
5554 * @channel: the channel of the new AP
5555 * @bss: entry of bss to which STA got roamed (may be %NULL if %bssid is set)
5556 * @bssid: the BSSID of the new AP (may be %NULL if %bss is set)
5557 * @req_ie: association request IEs (maybe be %NULL)
5558 * @req_ie_len: association request IEs length
5559 * @resp_ie: association response IEs (may be %NULL)
5560 * @resp_ie_len: assoc response IEs length
5561 */
5562struct cfg80211_roam_info {
5563 struct ieee80211_channel *channel;
5564 struct cfg80211_bss *bss;
5565 const u8 *bssid;
5566 const u8 *req_ie;
5567 size_t req_ie_len;
5568 const u8 *resp_ie;
5569 size_t resp_ie_len;
5570};
5571
5572/**
5573 * cfg80211_roamed - notify cfg80211 of roaming
5574 *
5575 * @dev: network device
5576 * @info: information about the new BSS. struct &cfg80211_roam_info.
5577 * @gfp: allocation flags
5578 *
5579 * This function may be called with the driver passing either the BSSID of the
5580 * new AP or passing the bss entry to avoid a race in timeout of the bss entry.
5581 * It should be called by the underlying driver whenever it roamed from one AP
5582 * to another while connected. Drivers which have roaming implemented in
5583 * firmware should pass the bss entry to avoid a race in bss entry timeout where
5584 * the bss entry of the new AP is seen in the driver, but gets timed out by the
5585 * time it is accessed in __cfg80211_roamed() due to delay in scheduling
5586 * rdev->event_work. In case of any failures, the reference is released
5587 * either in cfg80211_roamed() or in __cfg80211_romed(), Otherwise, it will be
5588 * released while diconneting from the current bss.
5589 */
5590void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
5591 gfp_t gfp);
5592
5593/**
5594 * cfg80211_port_authorized - notify cfg80211 of successful security association
5595 *
5596 * @dev: network device
5597 * @bssid: the BSSID of the AP
5598 * @gfp: allocation flags
5599 *
5600 * This function should be called by a driver that supports 4 way handshake
5601 * offload after a security association was successfully established (i.e.,
5602 * the 4 way handshake was completed successfully). The call to this function
5603 * should be preceded with a call to cfg80211_connect_result(),
5604 * cfg80211_connect_done(), cfg80211_connect_bss() or cfg80211_roamed() to
5605 * indicate the 802.11 association.
5606 */
5607void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
5608 gfp_t gfp);
5609
5610/**
5611 * cfg80211_disconnected - notify cfg80211 that connection was dropped
5612 *
5613 * @dev: network device
5614 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
5615 * @ie_len: length of IEs
5616 * @reason: reason code for the disconnection, set it to 0 if unknown
5617 * @locally_generated: disconnection was requested locally
5618 * @gfp: allocation flags
5619 *
5620 * After it calls this function, the driver should enter an idle state
5621 * and not try to connect to any AP any more.
5622 */
5623void cfg80211_disconnected(struct net_device *dev, u16 reason,
5624 const u8 *ie, size_t ie_len,
5625 bool locally_generated, gfp_t gfp);
5626
5627/**
5628 * cfg80211_ready_on_channel - notification of remain_on_channel start
5629 * @wdev: wireless device
5630 * @cookie: the request cookie
5631 * @chan: The current channel (from remain_on_channel request)
5632 * @duration: Duration in milliseconds that the driver intents to remain on the
5633 * channel
5634 * @gfp: allocation flags
5635 */
5636void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
5637 struct ieee80211_channel *chan,
5638 unsigned int duration, gfp_t gfp);
5639
5640/**
5641 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
5642 * @wdev: wireless device
5643 * @cookie: the request cookie
5644 * @chan: The current channel (from remain_on_channel request)
5645 * @gfp: allocation flags
5646 */
5647void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
5648 struct ieee80211_channel *chan,
5649 gfp_t gfp);
5650
5651
5652/**
5653 * cfg80211_new_sta - notify userspace about station
5654 *
5655 * @dev: the netdev
5656 * @mac_addr: the station's address
5657 * @sinfo: the station information
5658 * @gfp: allocation flags
5659 */
5660void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
5661 struct station_info *sinfo, gfp_t gfp);
5662
5663/**
5664 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
5665 * @dev: the netdev
5666 * @mac_addr: the station's address
5667 * @sinfo: the station information/statistics
5668 * @gfp: allocation flags
5669 */
5670void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
5671 struct station_info *sinfo, gfp_t gfp);
5672
5673/**
5674 * cfg80211_del_sta - notify userspace about deletion of a station
5675 *
5676 * @dev: the netdev
5677 * @mac_addr: the station's address
5678 * @gfp: allocation flags
5679 */
5680static inline void cfg80211_del_sta(struct net_device *dev,
5681 const u8 *mac_addr, gfp_t gfp)
5682{
5683 cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp);
5684}
5685
5686/**
5687 * cfg80211_conn_failed - connection request failed notification
5688 *
5689 * @dev: the netdev
5690 * @mac_addr: the station's address
5691 * @reason: the reason for connection failure
5692 * @gfp: allocation flags
5693 *
5694 * Whenever a station tries to connect to an AP and if the station
5695 * could not connect to the AP as the AP has rejected the connection
5696 * for some reasons, this function is called.
5697 *
5698 * The reason for connection failure can be any of the value from
5699 * nl80211_connect_failed_reason enum
5700 */
5701void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
5702 enum nl80211_connect_failed_reason reason,
5703 gfp_t gfp);
5704
5705/**
5706 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
5707 * @wdev: wireless device receiving the frame
5708 * @freq: Frequency on which the frame was received in MHz
5709 * @sig_dbm: signal strength in dBm, or 0 if unknown
5710 * @buf: Management frame (header + body)
5711 * @len: length of the frame data
5712 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
5713 *
5714 * This function is called whenever an Action frame is received for a station
5715 * mode interface, but is not processed in kernel.
5716 *
5717 * Return: %true if a user space application has registered for this frame.
5718 * For action frames, that makes it responsible for rejecting unrecognized
5719 * action frames; %false otherwise, in which case for action frames the
5720 * driver is responsible for rejecting the frame.
5721 */
5722bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
5723 const u8 *buf, size_t len, u32 flags);
5724
5725/**
5726 * cfg80211_mgmt_tx_status - notification of TX status for management frame
5727 * @wdev: wireless device receiving the frame
5728 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
5729 * @buf: Management frame (header + body)
5730 * @len: length of the frame data
5731 * @ack: Whether frame was acknowledged
5732 * @gfp: context flags
5733 *
5734 * This function is called whenever a management frame was requested to be
5735 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
5736 * transmission attempt.
5737 */
5738void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
5739 const u8 *buf, size_t len, bool ack, gfp_t gfp);
5740
5741
5742/**
5743 * cfg80211_rx_control_port - notification about a received control port frame
5744 * @dev: The device the frame matched to
5745 * @buf: control port frame
5746 * @len: length of the frame data
5747 * @addr: The peer from which the frame was received
5748 * @proto: frame protocol, typically PAE or Pre-authentication
5749 * @unencrypted: Whether the frame was received unencrypted
5750 *
5751 * This function is used to inform userspace about a received control port
5752 * frame. It should only be used if userspace indicated it wants to receive
5753 * control port frames over nl80211.
5754 *
5755 * The frame is the data portion of the 802.3 or 802.11 data frame with all
5756 * network layer headers removed (e.g. the raw EAPoL frame).
5757 *
5758 * Return: %true if the frame was passed to userspace
5759 */
5760bool cfg80211_rx_control_port(struct net_device *dev,
5761 const u8 *buf, size_t len,
5762 const u8 *addr, u16 proto, bool unencrypted);
5763
5764/**
5765 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
5766 * @dev: network device
5767 * @rssi_event: the triggered RSSI event
5768 * @rssi_level: new RSSI level value or 0 if not available
5769 * @gfp: context flags
5770 *
5771 * This function is called when a configured connection quality monitoring
5772 * rssi threshold reached event occurs.
5773 */
5774void cfg80211_cqm_rssi_notify(struct net_device *dev,
5775 enum nl80211_cqm_rssi_threshold_event rssi_event,
5776 s32 rssi_level, gfp_t gfp);
5777
5778/**
5779 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
5780 * @dev: network device
5781 * @peer: peer's MAC address
5782 * @num_packets: how many packets were lost -- should be a fixed threshold
5783 * but probably no less than maybe 50, or maybe a throughput dependent
5784 * threshold (to account for temporary interference)
5785 * @gfp: context flags
5786 */
5787void cfg80211_cqm_pktloss_notify(struct net_device *dev,
5788 const u8 *peer, u32 num_packets, gfp_t gfp);
5789
5790/**
5791 * cfg80211_cqm_txe_notify - TX error rate event
5792 * @dev: network device
5793 * @peer: peer's MAC address
5794 * @num_packets: how many packets were lost
5795 * @rate: % of packets which failed transmission
5796 * @intvl: interval (in s) over which the TX failure threshold was breached.
5797 * @gfp: context flags
5798 *
5799 * Notify userspace when configured % TX failures over number of packets in a
5800 * given interval is exceeded.
5801 */
5802void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
5803 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
5804
5805/**
5806 * cfg80211_cqm_beacon_loss_notify - beacon loss event
5807 * @dev: network device
5808 * @gfp: context flags
5809 *
5810 * Notify userspace about beacon loss from the connected AP.
5811 */
5812void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp);
5813
5814/**
5815 * cfg80211_radar_event - radar detection event
5816 * @wiphy: the wiphy
5817 * @chandef: chandef for the current channel
5818 * @gfp: context flags
5819 *
5820 * This function is called when a radar is detected on the current chanenl.
5821 */
5822void cfg80211_radar_event(struct wiphy *wiphy,
5823 struct cfg80211_chan_def *chandef, gfp_t gfp);
5824
5825/**
5826 * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event
5827 * @dev: network device
5828 * @mac: MAC address of a station which opmode got modified
5829 * @sta_opmode: station's current opmode value
5830 * @gfp: context flags
5831 *
5832 * Driver should call this function when station's opmode modified via action
5833 * frame.
5834 */
5835void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
5836 struct sta_opmode_info *sta_opmode,
5837 gfp_t gfp);
5838
5839/**
5840 * cfg80211_cac_event - Channel availability check (CAC) event
5841 * @netdev: network device
5842 * @chandef: chandef for the current channel
5843 * @event: type of event
5844 * @gfp: context flags
5845 *
5846 * This function is called when a Channel availability check (CAC) is finished
5847 * or aborted. This must be called to notify the completion of a CAC process,
5848 * also by full-MAC drivers.
5849 */
5850void cfg80211_cac_event(struct net_device *netdev,
5851 const struct cfg80211_chan_def *chandef,
5852 enum nl80211_radar_event event, gfp_t gfp);
5853
5854
5855/**
5856 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
5857 * @dev: network device
5858 * @bssid: BSSID of AP (to avoid races)
5859 * @replay_ctr: new replay counter
5860 * @gfp: allocation flags
5861 */
5862void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
5863 const u8 *replay_ctr, gfp_t gfp);
5864
5865/**
5866 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
5867 * @dev: network device
5868 * @index: candidate index (the smaller the index, the higher the priority)
5869 * @bssid: BSSID of AP
5870 * @preauth: Whether AP advertises support for RSN pre-authentication
5871 * @gfp: allocation flags
5872 */
5873void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
5874 const u8 *bssid, bool preauth, gfp_t gfp);
5875
5876/**
5877 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
5878 * @dev: The device the frame matched to
5879 * @addr: the transmitter address
5880 * @gfp: context flags
5881 *
5882 * This function is used in AP mode (only!) to inform userspace that
5883 * a spurious class 3 frame was received, to be able to deauth the
5884 * sender.
5885 * Return: %true if the frame was passed to userspace (or this failed
5886 * for a reason other than not having a subscription.)
5887 */
5888bool cfg80211_rx_spurious_frame(struct net_device *dev,
5889 const u8 *addr, gfp_t gfp);
5890
5891/**
5892 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
5893 * @dev: The device the frame matched to
5894 * @addr: the transmitter address
5895 * @gfp: context flags
5896 *
5897 * This function is used in AP mode (only!) to inform userspace that
5898 * an associated station sent a 4addr frame but that wasn't expected.
5899 * It is allowed and desirable to send this event only once for each
5900 * station to avoid event flooding.
5901 * Return: %true if the frame was passed to userspace (or this failed
5902 * for a reason other than not having a subscription.)
5903 */
5904bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
5905 const u8 *addr, gfp_t gfp);
5906
5907/**
5908 * cfg80211_probe_status - notify userspace about probe status
5909 * @dev: the device the probe was sent on
5910 * @addr: the address of the peer
5911 * @cookie: the cookie filled in @probe_client previously
5912 * @acked: indicates whether probe was acked or not
5913 * @ack_signal: signal strength (in dBm) of the ACK frame.
5914 * @is_valid_ack_signal: indicates the ack_signal is valid or not.
5915 * @gfp: allocation flags
5916 */
5917void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
5918 u64 cookie, bool acked, s32 ack_signal,
5919 bool is_valid_ack_signal, gfp_t gfp);
5920
5921/**
5922 * cfg80211_report_obss_beacon - report beacon from other APs
5923 * @wiphy: The wiphy that received the beacon
5924 * @frame: the frame
5925 * @len: length of the frame
5926 * @freq: frequency the frame was received on
5927 * @sig_dbm: signal strength in dBm, or 0 if unknown
5928 *
5929 * Use this function to report to userspace when a beacon was
5930 * received. It is not useful to call this when there is no
5931 * netdev that is in AP/GO mode.
5932 */
5933void cfg80211_report_obss_beacon(struct wiphy *wiphy,
5934 const u8 *frame, size_t len,
5935 int freq, int sig_dbm);
5936
5937/**
5938 * cfg80211_reg_can_beacon - check if beaconing is allowed
5939 * @wiphy: the wiphy
5940 * @chandef: the channel definition
5941 * @iftype: interface type
5942 *
5943 * Return: %true if there is no secondary channel or the secondary channel(s)
5944 * can be used for beaconing (i.e. is not a radar channel etc.)
5945 */
5946bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
5947 struct cfg80211_chan_def *chandef,
5948 enum nl80211_iftype iftype);
5949
5950/**
5951 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
5952 * @wiphy: the wiphy
5953 * @chandef: the channel definition
5954 * @iftype: interface type
5955 *
5956 * Return: %true if there is no secondary channel or the secondary channel(s)
5957 * can be used for beaconing (i.e. is not a radar channel etc.). This version
5958 * also checks if IR-relaxation conditions apply, to allow beaconing under
5959 * more permissive conditions.
5960 *
5961 * Requires the RTNL to be held.
5962 */
5963bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
5964 struct cfg80211_chan_def *chandef,
5965 enum nl80211_iftype iftype);
5966
5967/*
5968 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
5969 * @dev: the device which switched channels
5970 * @chandef: the new channel definition
5971 *
5972 * Caller must acquire wdev_lock, therefore must only be called from sleepable
5973 * driver context!
5974 */
5975void cfg80211_ch_switch_notify(struct net_device *dev,
5976 struct cfg80211_chan_def *chandef);
5977
5978/*
5979 * cfg80211_ch_switch_started_notify - notify channel switch start
5980 * @dev: the device on which the channel switch started
5981 * @chandef: the future channel definition
5982 * @count: the number of TBTTs until the channel switch happens
5983 *
5984 * Inform the userspace about the channel switch that has just
5985 * started, so that it can take appropriate actions (eg. starting
5986 * channel switch on other vifs), if necessary.
5987 */
5988void cfg80211_ch_switch_started_notify(struct net_device *dev,
5989 struct cfg80211_chan_def *chandef,
5990 u8 count);
5991
5992/**
5993 * ieee80211_operating_class_to_band - convert operating class to band
5994 *
5995 * @operating_class: the operating class to convert
5996 * @band: band pointer to fill
5997 *
5998 * Returns %true if the conversion was successful, %false otherwise.
5999 */
6000bool ieee80211_operating_class_to_band(u8 operating_class,
6001 enum nl80211_band *band);
6002
6003/**
6004 * ieee80211_chandef_to_operating_class - convert chandef to operation class
6005 *
6006 * @chandef: the chandef to convert
6007 * @op_class: a pointer to the resulting operating class
6008 *
6009 * Returns %true if the conversion was successful, %false otherwise.
6010 */
6011bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
6012 u8 *op_class);
6013
6014/*
6015 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
6016 * @dev: the device on which the operation is requested
6017 * @peer: the MAC address of the peer device
6018 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
6019 * NL80211_TDLS_TEARDOWN)
6020 * @reason_code: the reason code for teardown request
6021 * @gfp: allocation flags
6022 *
6023 * This function is used to request userspace to perform TDLS operation that
6024 * requires knowledge of keys, i.e., link setup or teardown when the AP
6025 * connection uses encryption. This is optional mechanism for the driver to use
6026 * if it can automatically determine when a TDLS link could be useful (e.g.,
6027 * based on traffic and signal strength for a peer).
6028 */
6029void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
6030 enum nl80211_tdls_operation oper,
6031 u16 reason_code, gfp_t gfp);
6032
6033/*
6034 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
6035 * @rate: given rate_info to calculate bitrate from
6036 *
6037 * return 0 if MCS index >= 32
6038 */
6039u32 cfg80211_calculate_bitrate(struct rate_info *rate);
6040
6041/**
6042 * cfg80211_unregister_wdev - remove the given wdev
6043 * @wdev: struct wireless_dev to remove
6044 *
6045 * Call this function only for wdevs that have no netdev assigned,
6046 * e.g. P2P Devices. It removes the device from the list so that
6047 * it can no longer be used. It is necessary to call this function
6048 * even when cfg80211 requests the removal of the interface by
6049 * calling the del_virtual_intf() callback. The function must also
6050 * be called when the driver wishes to unregister the wdev, e.g.
6051 * when the device is unbound from the driver.
6052 *
6053 * Requires the RTNL to be held.
6054 */
6055void cfg80211_unregister_wdev(struct wireless_dev *wdev);
6056
6057/**
6058 * struct cfg80211_ft_event - FT Information Elements
6059 * @ies: FT IEs
6060 * @ies_len: length of the FT IE in bytes
6061 * @target_ap: target AP's MAC address
6062 * @ric_ies: RIC IE
6063 * @ric_ies_len: length of the RIC IE in bytes
6064 */
6065struct cfg80211_ft_event_params {
6066 const u8 *ies;
6067 size_t ies_len;
6068 const u8 *target_ap;
6069 const u8 *ric_ies;
6070 size_t ric_ies_len;
6071};
6072
6073/**
6074 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
6075 * @netdev: network device
6076 * @ft_event: IE information
6077 */
6078void cfg80211_ft_event(struct net_device *netdev,
6079 struct cfg80211_ft_event_params *ft_event);
6080
6081/**
6082 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
6083 * @ies: the input IE buffer
6084 * @len: the input length
6085 * @attr: the attribute ID to find
6086 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
6087 * if the function is only called to get the needed buffer size
6088 * @bufsize: size of the output buffer
6089 *
6090 * The function finds a given P2P attribute in the (vendor) IEs and
6091 * copies its contents to the given buffer.
6092 *
6093 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
6094 * malformed or the attribute can't be found (respectively), or the
6095 * length of the found attribute (which can be zero).
6096 */
6097int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
6098 enum ieee80211_p2p_attr_id attr,
6099 u8 *buf, unsigned int bufsize);
6100
6101/**
6102 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC)
6103 * @ies: the IE buffer
6104 * @ielen: the length of the IE buffer
6105 * @ids: an array with element IDs that are allowed before
6106 * the split. A WLAN_EID_EXTENSION value means that the next
6107 * EID in the list is a sub-element of the EXTENSION IE.
6108 * @n_ids: the size of the element ID array
6109 * @after_ric: array IE types that come after the RIC element
6110 * @n_after_ric: size of the @after_ric array
6111 * @offset: offset where to start splitting in the buffer
6112 *
6113 * This function splits an IE buffer by updating the @offset
6114 * variable to point to the location where the buffer should be
6115 * split.
6116 *
6117 * It assumes that the given IE buffer is well-formed, this
6118 * has to be guaranteed by the caller!
6119 *
6120 * It also assumes that the IEs in the buffer are ordered
6121 * correctly, if not the result of using this function will not
6122 * be ordered correctly either, i.e. it does no reordering.
6123 *
6124 * The function returns the offset where the next part of the
6125 * buffer starts, which may be @ielen if the entire (remainder)
6126 * of the buffer should be used.
6127 */
6128size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen,
6129 const u8 *ids, int n_ids,
6130 const u8 *after_ric, int n_after_ric,
6131 size_t offset);
6132
6133/**
6134 * ieee80211_ie_split - split an IE buffer according to ordering
6135 * @ies: the IE buffer
6136 * @ielen: the length of the IE buffer
6137 * @ids: an array with element IDs that are allowed before
6138 * the split. A WLAN_EID_EXTENSION value means that the next
6139 * EID in the list is a sub-element of the EXTENSION IE.
6140 * @n_ids: the size of the element ID array
6141 * @offset: offset where to start splitting in the buffer
6142 *
6143 * This function splits an IE buffer by updating the @offset
6144 * variable to point to the location where the buffer should be
6145 * split.
6146 *
6147 * It assumes that the given IE buffer is well-formed, this
6148 * has to be guaranteed by the caller!
6149 *
6150 * It also assumes that the IEs in the buffer are ordered
6151 * correctly, if not the result of using this function will not
6152 * be ordered correctly either, i.e. it does no reordering.
6153 *
6154 * The function returns the offset where the next part of the
6155 * buffer starts, which may be @ielen if the entire (remainder)
6156 * of the buffer should be used.
6157 */
6158static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
6159 const u8 *ids, int n_ids, size_t offset)
6160{
6161 return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset);
6162}
6163
6164/**
6165 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
6166 * @wdev: the wireless device reporting the wakeup
6167 * @wakeup: the wakeup report
6168 * @gfp: allocation flags
6169 *
6170 * This function reports that the given device woke up. If it
6171 * caused the wakeup, report the reason(s), otherwise you may
6172 * pass %NULL as the @wakeup parameter to advertise that something
6173 * else caused the wakeup.
6174 */
6175void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
6176 struct cfg80211_wowlan_wakeup *wakeup,
6177 gfp_t gfp);
6178
6179/**
6180 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
6181 *
6182 * @wdev: the wireless device for which critical protocol is stopped.
6183 * @gfp: allocation flags
6184 *
6185 * This function can be called by the driver to indicate it has reverted
6186 * operation back to normal. One reason could be that the duration given
6187 * by .crit_proto_start() has expired.
6188 */
6189void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp);
6190
6191/**
6192 * ieee80211_get_num_supported_channels - get number of channels device has
6193 * @wiphy: the wiphy
6194 *
6195 * Return: the number of channels supported by the device.
6196 */
6197unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy);
6198
6199/**
6200 * cfg80211_check_combinations - check interface combinations
6201 *
6202 * @wiphy: the wiphy
6203 * @params: the interface combinations parameter
6204 *
6205 * This function can be called by the driver to check whether a
6206 * combination of interfaces and their types are allowed according to
6207 * the interface combinations.
6208 */
6209int cfg80211_check_combinations(struct wiphy *wiphy,
6210 struct iface_combination_params *params);
6211
6212/**
6213 * cfg80211_iter_combinations - iterate over matching combinations
6214 *
6215 * @wiphy: the wiphy
6216 * @params: the interface combinations parameter
6217 * @iter: function to call for each matching combination
6218 * @data: pointer to pass to iter function
6219 *
6220 * This function can be called by the driver to check what possible
6221 * combinations it fits in at a given moment, e.g. for channel switching
6222 * purposes.
6223 */
6224int cfg80211_iter_combinations(struct wiphy *wiphy,
6225 struct iface_combination_params *params,
6226 void (*iter)(const struct ieee80211_iface_combination *c,
6227 void *data),
6228 void *data);
6229
6230/*
6231 * cfg80211_stop_iface - trigger interface disconnection
6232 *
6233 * @wiphy: the wiphy
6234 * @wdev: wireless device
6235 * @gfp: context flags
6236 *
6237 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
6238 * disconnected.
6239 *
6240 * Note: This doesn't need any locks and is asynchronous.
6241 */
6242void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
6243 gfp_t gfp);
6244
6245/**
6246 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
6247 * @wiphy: the wiphy to shut down
6248 *
6249 * This function shuts down all interfaces belonging to this wiphy by
6250 * calling dev_close() (and treating non-netdev interfaces as needed).
6251 * It shouldn't really be used unless there are some fatal device errors
6252 * that really can't be recovered in any other way.
6253 *
6254 * Callers must hold the RTNL and be able to deal with callbacks into
6255 * the driver while the function is running.
6256 */
6257void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy);
6258
6259/**
6260 * wiphy_ext_feature_set - set the extended feature flag
6261 *
6262 * @wiphy: the wiphy to modify.
6263 * @ftidx: extended feature bit index.
6264 *
6265 * The extended features are flagged in multiple bytes (see
6266 * &struct wiphy.@ext_features)
6267 */
6268static inline void wiphy_ext_feature_set(struct wiphy *wiphy,
6269 enum nl80211_ext_feature_index ftidx)
6270{
6271 u8 *ft_byte;
6272
6273 ft_byte = &wiphy->ext_features[ftidx / 8];
6274 *ft_byte |= BIT(ftidx % 8);
6275}
6276
6277/**
6278 * wiphy_ext_feature_isset - check the extended feature flag
6279 *
6280 * @wiphy: the wiphy to modify.
6281 * @ftidx: extended feature bit index.
6282 *
6283 * The extended features are flagged in multiple bytes (see
6284 * &struct wiphy.@ext_features)
6285 */
6286static inline bool
6287wiphy_ext_feature_isset(struct wiphy *wiphy,
6288 enum nl80211_ext_feature_index ftidx)
6289{
6290 u8 ft_byte;
6291
6292 ft_byte = wiphy->ext_features[ftidx / 8];
6293 return (ft_byte & BIT(ftidx % 8)) != 0;
6294}
6295
6296/**
6297 * cfg80211_free_nan_func - free NAN function
6298 * @f: NAN function that should be freed
6299 *
6300 * Frees all the NAN function and all it's allocated members.
6301 */
6302void cfg80211_free_nan_func(struct cfg80211_nan_func *f);
6303
6304/**
6305 * struct cfg80211_nan_match_params - NAN match parameters
6306 * @type: the type of the function that triggered a match. If it is
6307 * %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber.
6308 * If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery
6309 * result.
6310 * If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up.
6311 * @inst_id: the local instance id
6312 * @peer_inst_id: the instance id of the peer's function
6313 * @addr: the MAC address of the peer
6314 * @info_len: the length of the &info
6315 * @info: the Service Specific Info from the peer (if any)
6316 * @cookie: unique identifier of the corresponding function
6317 */
6318struct cfg80211_nan_match_params {
6319 enum nl80211_nan_function_type type;
6320 u8 inst_id;
6321 u8 peer_inst_id;
6322 const u8 *addr;
6323 u8 info_len;
6324 const u8 *info;
6325 u64 cookie;
6326};
6327
6328/**
6329 * cfg80211_nan_match - report a match for a NAN function.
6330 * @wdev: the wireless device reporting the match
6331 * @match: match notification parameters
6332 * @gfp: allocation flags
6333 *
6334 * This function reports that the a NAN function had a match. This
6335 * can be a subscribe that had a match or a solicited publish that
6336 * was sent. It can also be a follow up that was received.
6337 */
6338void cfg80211_nan_match(struct wireless_dev *wdev,
6339 struct cfg80211_nan_match_params *match, gfp_t gfp);
6340
6341/**
6342 * cfg80211_nan_func_terminated - notify about NAN function termination.
6343 *
6344 * @wdev: the wireless device reporting the match
6345 * @inst_id: the local instance id
6346 * @reason: termination reason (one of the NL80211_NAN_FUNC_TERM_REASON_*)
6347 * @cookie: unique NAN function identifier
6348 * @gfp: allocation flags
6349 *
6350 * This function reports that the a NAN function is terminated.
6351 */
6352void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
6353 u8 inst_id,
6354 enum nl80211_nan_func_term_reason reason,
6355 u64 cookie, gfp_t gfp);
6356
6357/* ethtool helper */
6358void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info);
6359
6360/**
6361 * cfg80211_external_auth_request - userspace request for authentication
6362 * @netdev: network device
6363 * @params: External authentication parameters
6364 * @gfp: allocation flags
6365 * Returns: 0 on success, < 0 on error
6366 */
6367int cfg80211_external_auth_request(struct net_device *netdev,
6368 struct cfg80211_external_auth_params *params,
6369 gfp_t gfp);
6370
6371/* Logging, debugging and troubleshooting/diagnostic helpers. */
6372
6373/* wiphy_printk helpers, similar to dev_printk */
6374
6375#define wiphy_printk(level, wiphy, format, args...) \
6376 dev_printk(level, &(wiphy)->dev, format, ##args)
6377#define wiphy_emerg(wiphy, format, args...) \
6378 dev_emerg(&(wiphy)->dev, format, ##args)
6379#define wiphy_alert(wiphy, format, args...) \
6380 dev_alert(&(wiphy)->dev, format, ##args)
6381#define wiphy_crit(wiphy, format, args...) \
6382 dev_crit(&(wiphy)->dev, format, ##args)
6383#define wiphy_err(wiphy, format, args...) \
6384 dev_err(&(wiphy)->dev, format, ##args)
6385#define wiphy_warn(wiphy, format, args...) \
6386 dev_warn(&(wiphy)->dev, format, ##args)
6387#define wiphy_notice(wiphy, format, args...) \
6388 dev_notice(&(wiphy)->dev, format, ##args)
6389#define wiphy_info(wiphy, format, args...) \
6390 dev_info(&(wiphy)->dev, format, ##args)
6391
6392#define wiphy_debug(wiphy, format, args...) \
6393 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
6394
6395#define wiphy_dbg(wiphy, format, args...) \
6396 dev_dbg(&(wiphy)->dev, format, ##args)
6397
6398#if defined(VERBOSE_DEBUG)
6399#define wiphy_vdbg wiphy_dbg
6400#else
6401#define wiphy_vdbg(wiphy, format, args...) \
6402({ \
6403 if (0) \
6404 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
6405 0; \
6406})
6407#endif
6408
6409/*
6410 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
6411 * of using a WARN/WARN_ON to get the message out, including the
6412 * file/line information and a backtrace.
6413 */
6414#define wiphy_WARN(wiphy, format, args...) \
6415 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
6416
6417#endif /* __NET_CFG80211_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2#ifndef __NET_CFG80211_H
3#define __NET_CFG80211_H
4/*
5 * 802.11 device and configuration interface
6 *
7 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * Copyright 2013-2014 Intel Mobile Communications GmbH
9 * Copyright 2015-2017 Intel Deutschland GmbH
10 * Copyright (C) 2018-2021 Intel Corporation
11 */
12
13#include <linux/ethtool.h>
14#include <uapi/linux/rfkill.h>
15#include <linux/netdevice.h>
16#include <linux/debugfs.h>
17#include <linux/list.h>
18#include <linux/bug.h>
19#include <linux/netlink.h>
20#include <linux/skbuff.h>
21#include <linux/nl80211.h>
22#include <linux/if_ether.h>
23#include <linux/ieee80211.h>
24#include <linux/net.h>
25#include <linux/rfkill.h>
26#include <net/regulatory.h>
27
28/**
29 * DOC: Introduction
30 *
31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
32 * userspace and drivers, and offers some utility functionality associated
33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
34 * by all modern wireless drivers in Linux, so that they offer a consistent
35 * API through nl80211. For backward compatibility, cfg80211 also offers
36 * wireless extensions to userspace, but hides them from drivers completely.
37 *
38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
39 * use restrictions.
40 */
41
42
43/**
44 * DOC: Device registration
45 *
46 * In order for a driver to use cfg80211, it must register the hardware device
47 * with cfg80211. This happens through a number of hardware capability structs
48 * described below.
49 *
50 * The fundamental structure for each device is the 'wiphy', of which each
51 * instance describes a physical wireless device connected to the system. Each
52 * such wiphy can have zero, one, or many virtual interfaces associated with
53 * it, which need to be identified as such by pointing the network interface's
54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
55 * the wireless part of the interface, normally this struct is embedded in the
56 * network interface's private data area. Drivers can optionally allow creating
57 * or destroying virtual interfaces on the fly, but without at least one or the
58 * ability to create some the wireless device isn't useful.
59 *
60 * Each wiphy structure contains device capability information, and also has
61 * a pointer to the various operations the driver offers. The definitions and
62 * structures here describe these capabilities in detail.
63 */
64
65struct wiphy;
66
67/*
68 * wireless hardware capability structures
69 */
70
71/**
72 * enum ieee80211_channel_flags - channel flags
73 *
74 * Channel flags set by the regulatory control code.
75 *
76 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
77 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
78 * sending probe requests or beaconing.
79 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
80 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
81 * is not permitted.
82 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
83 * is not permitted.
84 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
85 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
86 * this flag indicates that an 80 MHz channel cannot use this
87 * channel as the control or any of the secondary channels.
88 * This may be due to the driver or due to regulatory bandwidth
89 * restrictions.
90 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
91 * this flag indicates that an 160 MHz channel cannot use this
92 * channel as the control or any of the secondary channels.
93 * This may be due to the driver or due to regulatory bandwidth
94 * restrictions.
95 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
96 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
97 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
98 * on this channel.
99 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
100 * on this channel.
101 * @IEEE80211_CHAN_NO_HE: HE operation is not permitted on this channel.
102 * @IEEE80211_CHAN_1MHZ: 1 MHz bandwidth is permitted
103 * on this channel.
104 * @IEEE80211_CHAN_2MHZ: 2 MHz bandwidth is permitted
105 * on this channel.
106 * @IEEE80211_CHAN_4MHZ: 4 MHz bandwidth is permitted
107 * on this channel.
108 * @IEEE80211_CHAN_8MHZ: 8 MHz bandwidth is permitted
109 * on this channel.
110 * @IEEE80211_CHAN_16MHZ: 16 MHz bandwidth is permitted
111 * on this channel.
112 * @IEEE80211_CHAN_NO_320MHZ: If the driver supports 320 MHz on the band,
113 * this flag indicates that a 320 MHz channel cannot use this
114 * channel as the control or any of the secondary channels.
115 * This may be due to the driver or due to regulatory bandwidth
116 * restrictions.
117 * @IEEE80211_CHAN_NO_EHT: EHT operation is not permitted on this channel.
118 */
119enum ieee80211_channel_flags {
120 IEEE80211_CHAN_DISABLED = 1<<0,
121 IEEE80211_CHAN_NO_IR = 1<<1,
122 /* hole at 1<<2 */
123 IEEE80211_CHAN_RADAR = 1<<3,
124 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
125 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
126 IEEE80211_CHAN_NO_OFDM = 1<<6,
127 IEEE80211_CHAN_NO_80MHZ = 1<<7,
128 IEEE80211_CHAN_NO_160MHZ = 1<<8,
129 IEEE80211_CHAN_INDOOR_ONLY = 1<<9,
130 IEEE80211_CHAN_IR_CONCURRENT = 1<<10,
131 IEEE80211_CHAN_NO_20MHZ = 1<<11,
132 IEEE80211_CHAN_NO_10MHZ = 1<<12,
133 IEEE80211_CHAN_NO_HE = 1<<13,
134 IEEE80211_CHAN_1MHZ = 1<<14,
135 IEEE80211_CHAN_2MHZ = 1<<15,
136 IEEE80211_CHAN_4MHZ = 1<<16,
137 IEEE80211_CHAN_8MHZ = 1<<17,
138 IEEE80211_CHAN_16MHZ = 1<<18,
139 IEEE80211_CHAN_NO_320MHZ = 1<<19,
140 IEEE80211_CHAN_NO_EHT = 1<<20,
141};
142
143#define IEEE80211_CHAN_NO_HT40 \
144 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
145
146#define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
147#define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
148
149/**
150 * struct ieee80211_channel - channel definition
151 *
152 * This structure describes a single channel for use
153 * with cfg80211.
154 *
155 * @center_freq: center frequency in MHz
156 * @freq_offset: offset from @center_freq, in KHz
157 * @hw_value: hardware-specific value for the channel
158 * @flags: channel flags from &enum ieee80211_channel_flags.
159 * @orig_flags: channel flags at registration time, used by regulatory
160 * code to support devices with additional restrictions
161 * @band: band this channel belongs to.
162 * @max_antenna_gain: maximum antenna gain in dBi
163 * @max_power: maximum transmission power (in dBm)
164 * @max_reg_power: maximum regulatory transmission power (in dBm)
165 * @beacon_found: helper to regulatory code to indicate when a beacon
166 * has been found on this channel. Use regulatory_hint_found_beacon()
167 * to enable this, this is useful only on 5 GHz band.
168 * @orig_mag: internal use
169 * @orig_mpwr: internal use
170 * @dfs_state: current state of this channel. Only relevant if radar is required
171 * on this channel.
172 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
173 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
174 */
175struct ieee80211_channel {
176 enum nl80211_band band;
177 u32 center_freq;
178 u16 freq_offset;
179 u16 hw_value;
180 u32 flags;
181 int max_antenna_gain;
182 int max_power;
183 int max_reg_power;
184 bool beacon_found;
185 u32 orig_flags;
186 int orig_mag, orig_mpwr;
187 enum nl80211_dfs_state dfs_state;
188 unsigned long dfs_state_entered;
189 unsigned int dfs_cac_ms;
190};
191
192/**
193 * enum ieee80211_rate_flags - rate flags
194 *
195 * Hardware/specification flags for rates. These are structured
196 * in a way that allows using the same bitrate structure for
197 * different bands/PHY modes.
198 *
199 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
200 * preamble on this bitrate; only relevant in 2.4GHz band and
201 * with CCK rates.
202 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
203 * when used with 802.11a (on the 5 GHz band); filled by the
204 * core code when registering the wiphy.
205 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
206 * when used with 802.11b (on the 2.4 GHz band); filled by the
207 * core code when registering the wiphy.
208 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
209 * when used with 802.11g (on the 2.4 GHz band); filled by the
210 * core code when registering the wiphy.
211 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
212 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
213 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
214 */
215enum ieee80211_rate_flags {
216 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
217 IEEE80211_RATE_MANDATORY_A = 1<<1,
218 IEEE80211_RATE_MANDATORY_B = 1<<2,
219 IEEE80211_RATE_MANDATORY_G = 1<<3,
220 IEEE80211_RATE_ERP_G = 1<<4,
221 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5,
222 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6,
223};
224
225/**
226 * enum ieee80211_bss_type - BSS type filter
227 *
228 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
229 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS
230 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS
231 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
232 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
233 */
234enum ieee80211_bss_type {
235 IEEE80211_BSS_TYPE_ESS,
236 IEEE80211_BSS_TYPE_PBSS,
237 IEEE80211_BSS_TYPE_IBSS,
238 IEEE80211_BSS_TYPE_MBSS,
239 IEEE80211_BSS_TYPE_ANY
240};
241
242/**
243 * enum ieee80211_privacy - BSS privacy filter
244 *
245 * @IEEE80211_PRIVACY_ON: privacy bit set
246 * @IEEE80211_PRIVACY_OFF: privacy bit clear
247 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
248 */
249enum ieee80211_privacy {
250 IEEE80211_PRIVACY_ON,
251 IEEE80211_PRIVACY_OFF,
252 IEEE80211_PRIVACY_ANY
253};
254
255#define IEEE80211_PRIVACY(x) \
256 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
257
258/**
259 * struct ieee80211_rate - bitrate definition
260 *
261 * This structure describes a bitrate that an 802.11 PHY can
262 * operate with. The two values @hw_value and @hw_value_short
263 * are only for driver use when pointers to this structure are
264 * passed around.
265 *
266 * @flags: rate-specific flags
267 * @bitrate: bitrate in units of 100 Kbps
268 * @hw_value: driver/hardware value for this rate
269 * @hw_value_short: driver/hardware value for this rate when
270 * short preamble is used
271 */
272struct ieee80211_rate {
273 u32 flags;
274 u16 bitrate;
275 u16 hw_value, hw_value_short;
276};
277
278/**
279 * struct ieee80211_he_obss_pd - AP settings for spatial reuse
280 *
281 * @enable: is the feature enabled.
282 * @sr_ctrl: The SR Control field of SRP element.
283 * @non_srg_max_offset: non-SRG maximum tx power offset
284 * @min_offset: minimal tx power offset an associated station shall use
285 * @max_offset: maximum tx power offset an associated station shall use
286 * @bss_color_bitmap: bitmap that indicates the BSS color values used by
287 * members of the SRG
288 * @partial_bssid_bitmap: bitmap that indicates the partial BSSID values
289 * used by members of the SRG
290 */
291struct ieee80211_he_obss_pd {
292 bool enable;
293 u8 sr_ctrl;
294 u8 non_srg_max_offset;
295 u8 min_offset;
296 u8 max_offset;
297 u8 bss_color_bitmap[8];
298 u8 partial_bssid_bitmap[8];
299};
300
301/**
302 * struct cfg80211_he_bss_color - AP settings for BSS coloring
303 *
304 * @color: the current color.
305 * @enabled: HE BSS color is used
306 * @partial: define the AID equation.
307 */
308struct cfg80211_he_bss_color {
309 u8 color;
310 bool enabled;
311 bool partial;
312};
313
314/**
315 * struct ieee80211_sta_ht_cap - STA's HT capabilities
316 *
317 * This structure describes most essential parameters needed
318 * to describe 802.11n HT capabilities for an STA.
319 *
320 * @ht_supported: is HT supported by the STA
321 * @cap: HT capabilities map as described in 802.11n spec
322 * @ampdu_factor: Maximum A-MPDU length factor
323 * @ampdu_density: Minimum A-MPDU spacing
324 * @mcs: Supported MCS rates
325 */
326struct ieee80211_sta_ht_cap {
327 u16 cap; /* use IEEE80211_HT_CAP_ */
328 bool ht_supported;
329 u8 ampdu_factor;
330 u8 ampdu_density;
331 struct ieee80211_mcs_info mcs;
332};
333
334/**
335 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
336 *
337 * This structure describes most essential parameters needed
338 * to describe 802.11ac VHT capabilities for an STA.
339 *
340 * @vht_supported: is VHT supported by the STA
341 * @cap: VHT capabilities map as described in 802.11ac spec
342 * @vht_mcs: Supported VHT MCS rates
343 */
344struct ieee80211_sta_vht_cap {
345 bool vht_supported;
346 u32 cap; /* use IEEE80211_VHT_CAP_ */
347 struct ieee80211_vht_mcs_info vht_mcs;
348};
349
350#define IEEE80211_HE_PPE_THRES_MAX_LEN 25
351
352/**
353 * struct ieee80211_sta_he_cap - STA's HE capabilities
354 *
355 * This structure describes most essential parameters needed
356 * to describe 802.11ax HE capabilities for a STA.
357 *
358 * @has_he: true iff HE data is valid.
359 * @he_cap_elem: Fixed portion of the HE capabilities element.
360 * @he_mcs_nss_supp: The supported NSS/MCS combinations.
361 * @ppe_thres: Holds the PPE Thresholds data.
362 */
363struct ieee80211_sta_he_cap {
364 bool has_he;
365 struct ieee80211_he_cap_elem he_cap_elem;
366 struct ieee80211_he_mcs_nss_supp he_mcs_nss_supp;
367 u8 ppe_thres[IEEE80211_HE_PPE_THRES_MAX_LEN];
368};
369
370/**
371 * struct ieee80211_eht_mcs_nss_supp - EHT max supported NSS per MCS
372 *
373 * See P802.11be_D1.3 Table 9-401k - "Subfields of the Supported EHT-MCS
374 * and NSS Set field"
375 *
376 * @only_20mhz: MCS/NSS support for 20 MHz-only STA.
377 * @bw: MCS/NSS support for 80, 160 and 320 MHz
378 * @bw._80: MCS/NSS support for BW <= 80 MHz
379 * @bw._160: MCS/NSS support for BW = 160 MHz
380 * @bw._320: MCS/NSS support for BW = 320 MHz
381 */
382struct ieee80211_eht_mcs_nss_supp {
383 union {
384 struct ieee80211_eht_mcs_nss_supp_20mhz_only only_20mhz;
385 struct {
386 struct ieee80211_eht_mcs_nss_supp_bw _80;
387 struct ieee80211_eht_mcs_nss_supp_bw _160;
388 struct ieee80211_eht_mcs_nss_supp_bw _320;
389 } __packed bw;
390 } __packed;
391} __packed;
392
393#define IEEE80211_EHT_PPE_THRES_MAX_LEN 32
394
395/**
396 * struct ieee80211_sta_eht_cap - STA's EHT capabilities
397 *
398 * This structure describes most essential parameters needed
399 * to describe 802.11be EHT capabilities for a STA.
400 *
401 * @has_eht: true iff EHT data is valid.
402 * @eht_cap_elem: Fixed portion of the eht capabilities element.
403 * @eht_mcs_nss_supp: The supported NSS/MCS combinations.
404 * @eht_ppe_thres: Holds the PPE Thresholds data.
405 */
406struct ieee80211_sta_eht_cap {
407 bool has_eht;
408 struct ieee80211_eht_cap_elem_fixed eht_cap_elem;
409 struct ieee80211_eht_mcs_nss_supp eht_mcs_nss_supp;
410 u8 eht_ppe_thres[IEEE80211_EHT_PPE_THRES_MAX_LEN];
411};
412
413/**
414 * struct ieee80211_sband_iftype_data - sband data per interface type
415 *
416 * This structure encapsulates sband data that is relevant for the
417 * interface types defined in @types_mask. Each type in the
418 * @types_mask must be unique across all instances of iftype_data.
419 *
420 * @types_mask: interface types mask
421 * @he_cap: holds the HE capabilities
422 * @he_6ghz_capa: HE 6 GHz capabilities, must be filled in for a
423 * 6 GHz band channel (and 0 may be valid value).
424 * @eht_cap: STA's EHT capabilities
425 * @vendor_elems: vendor element(s) to advertise
426 * @vendor_elems.data: vendor element(s) data
427 * @vendor_elems.len: vendor element(s) length
428 */
429struct ieee80211_sband_iftype_data {
430 u16 types_mask;
431 struct ieee80211_sta_he_cap he_cap;
432 struct ieee80211_he_6ghz_capa he_6ghz_capa;
433 struct ieee80211_sta_eht_cap eht_cap;
434 struct {
435 const u8 *data;
436 unsigned int len;
437 } vendor_elems;
438};
439
440/**
441 * enum ieee80211_edmg_bw_config - allowed channel bandwidth configurations
442 *
443 * @IEEE80211_EDMG_BW_CONFIG_4: 2.16GHz
444 * @IEEE80211_EDMG_BW_CONFIG_5: 2.16GHz and 4.32GHz
445 * @IEEE80211_EDMG_BW_CONFIG_6: 2.16GHz, 4.32GHz and 6.48GHz
446 * @IEEE80211_EDMG_BW_CONFIG_7: 2.16GHz, 4.32GHz, 6.48GHz and 8.64GHz
447 * @IEEE80211_EDMG_BW_CONFIG_8: 2.16GHz and 2.16GHz + 2.16GHz
448 * @IEEE80211_EDMG_BW_CONFIG_9: 2.16GHz, 4.32GHz and 2.16GHz + 2.16GHz
449 * @IEEE80211_EDMG_BW_CONFIG_10: 2.16GHz, 4.32GHz, 6.48GHz and 2.16GHz+2.16GHz
450 * @IEEE80211_EDMG_BW_CONFIG_11: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz and
451 * 2.16GHz+2.16GHz
452 * @IEEE80211_EDMG_BW_CONFIG_12: 2.16GHz, 2.16GHz + 2.16GHz and
453 * 4.32GHz + 4.32GHz
454 * @IEEE80211_EDMG_BW_CONFIG_13: 2.16GHz, 4.32GHz, 2.16GHz + 2.16GHz and
455 * 4.32GHz + 4.32GHz
456 * @IEEE80211_EDMG_BW_CONFIG_14: 2.16GHz, 4.32GHz, 6.48GHz, 2.16GHz + 2.16GHz
457 * and 4.32GHz + 4.32GHz
458 * @IEEE80211_EDMG_BW_CONFIG_15: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz,
459 * 2.16GHz + 2.16GHz and 4.32GHz + 4.32GHz
460 */
461enum ieee80211_edmg_bw_config {
462 IEEE80211_EDMG_BW_CONFIG_4 = 4,
463 IEEE80211_EDMG_BW_CONFIG_5 = 5,
464 IEEE80211_EDMG_BW_CONFIG_6 = 6,
465 IEEE80211_EDMG_BW_CONFIG_7 = 7,
466 IEEE80211_EDMG_BW_CONFIG_8 = 8,
467 IEEE80211_EDMG_BW_CONFIG_9 = 9,
468 IEEE80211_EDMG_BW_CONFIG_10 = 10,
469 IEEE80211_EDMG_BW_CONFIG_11 = 11,
470 IEEE80211_EDMG_BW_CONFIG_12 = 12,
471 IEEE80211_EDMG_BW_CONFIG_13 = 13,
472 IEEE80211_EDMG_BW_CONFIG_14 = 14,
473 IEEE80211_EDMG_BW_CONFIG_15 = 15,
474};
475
476/**
477 * struct ieee80211_edmg - EDMG configuration
478 *
479 * This structure describes most essential parameters needed
480 * to describe 802.11ay EDMG configuration
481 *
482 * @channels: bitmap that indicates the 2.16 GHz channel(s)
483 * that are allowed to be used for transmissions.
484 * Bit 0 indicates channel 1, bit 1 indicates channel 2, etc.
485 * Set to 0 indicate EDMG not supported.
486 * @bw_config: Channel BW Configuration subfield encodes
487 * the allowed channel bandwidth configurations
488 */
489struct ieee80211_edmg {
490 u8 channels;
491 enum ieee80211_edmg_bw_config bw_config;
492};
493
494/**
495 * struct ieee80211_sta_s1g_cap - STA's S1G capabilities
496 *
497 * This structure describes most essential parameters needed
498 * to describe 802.11ah S1G capabilities for a STA.
499 *
500 * @s1g: is STA an S1G STA
501 * @cap: S1G capabilities information
502 * @nss_mcs: Supported NSS MCS set
503 */
504struct ieee80211_sta_s1g_cap {
505 bool s1g;
506 u8 cap[10]; /* use S1G_CAPAB_ */
507 u8 nss_mcs[5];
508};
509
510/**
511 * struct ieee80211_supported_band - frequency band definition
512 *
513 * This structure describes a frequency band a wiphy
514 * is able to operate in.
515 *
516 * @channels: Array of channels the hardware can operate with
517 * in this band.
518 * @band: the band this structure represents
519 * @n_channels: Number of channels in @channels
520 * @bitrates: Array of bitrates the hardware can operate with
521 * in this band. Must be sorted to give a valid "supported
522 * rates" IE, i.e. CCK rates first, then OFDM.
523 * @n_bitrates: Number of bitrates in @bitrates
524 * @ht_cap: HT capabilities in this band
525 * @vht_cap: VHT capabilities in this band
526 * @s1g_cap: S1G capabilities in this band
527 * @edmg_cap: EDMG capabilities in this band
528 * @s1g_cap: S1G capabilities in this band (S1B band only, of course)
529 * @n_iftype_data: number of iftype data entries
530 * @iftype_data: interface type data entries. Note that the bits in
531 * @types_mask inside this structure cannot overlap (i.e. only
532 * one occurrence of each type is allowed across all instances of
533 * iftype_data).
534 */
535struct ieee80211_supported_band {
536 struct ieee80211_channel *channels;
537 struct ieee80211_rate *bitrates;
538 enum nl80211_band band;
539 int n_channels;
540 int n_bitrates;
541 struct ieee80211_sta_ht_cap ht_cap;
542 struct ieee80211_sta_vht_cap vht_cap;
543 struct ieee80211_sta_s1g_cap s1g_cap;
544 struct ieee80211_edmg edmg_cap;
545 u16 n_iftype_data;
546 const struct ieee80211_sband_iftype_data *iftype_data;
547};
548
549/**
550 * ieee80211_get_sband_iftype_data - return sband data for a given iftype
551 * @sband: the sband to search for the STA on
552 * @iftype: enum nl80211_iftype
553 *
554 * Return: pointer to struct ieee80211_sband_iftype_data, or NULL is none found
555 */
556static inline const struct ieee80211_sband_iftype_data *
557ieee80211_get_sband_iftype_data(const struct ieee80211_supported_band *sband,
558 u8 iftype)
559{
560 int i;
561
562 if (WARN_ON(iftype >= NL80211_IFTYPE_MAX))
563 return NULL;
564
565 for (i = 0; i < sband->n_iftype_data; i++) {
566 const struct ieee80211_sband_iftype_data *data =
567 &sband->iftype_data[i];
568
569 if (data->types_mask & BIT(iftype))
570 return data;
571 }
572
573 return NULL;
574}
575
576/**
577 * ieee80211_get_he_iftype_cap - return HE capabilities for an sband's iftype
578 * @sband: the sband to search for the iftype on
579 * @iftype: enum nl80211_iftype
580 *
581 * Return: pointer to the struct ieee80211_sta_he_cap, or NULL is none found
582 */
583static inline const struct ieee80211_sta_he_cap *
584ieee80211_get_he_iftype_cap(const struct ieee80211_supported_band *sband,
585 u8 iftype)
586{
587 const struct ieee80211_sband_iftype_data *data =
588 ieee80211_get_sband_iftype_data(sband, iftype);
589
590 if (data && data->he_cap.has_he)
591 return &data->he_cap;
592
593 return NULL;
594}
595
596/**
597 * ieee80211_get_he_6ghz_capa - return HE 6 GHz capabilities
598 * @sband: the sband to search for the STA on
599 * @iftype: the iftype to search for
600 *
601 * Return: the 6GHz capabilities
602 */
603static inline __le16
604ieee80211_get_he_6ghz_capa(const struct ieee80211_supported_band *sband,
605 enum nl80211_iftype iftype)
606{
607 const struct ieee80211_sband_iftype_data *data =
608 ieee80211_get_sband_iftype_data(sband, iftype);
609
610 if (WARN_ON(!data || !data->he_cap.has_he))
611 return 0;
612
613 return data->he_6ghz_capa.capa;
614}
615
616/**
617 * ieee80211_get_eht_iftype_cap - return ETH capabilities for an sband's iftype
618 * @sband: the sband to search for the iftype on
619 * @iftype: enum nl80211_iftype
620 *
621 * Return: pointer to the struct ieee80211_sta_eht_cap, or NULL is none found
622 */
623static inline const struct ieee80211_sta_eht_cap *
624ieee80211_get_eht_iftype_cap(const struct ieee80211_supported_band *sband,
625 enum nl80211_iftype iftype)
626{
627 const struct ieee80211_sband_iftype_data *data =
628 ieee80211_get_sband_iftype_data(sband, iftype);
629
630 if (data && data->eht_cap.has_eht)
631 return &data->eht_cap;
632
633 return NULL;
634}
635
636/**
637 * wiphy_read_of_freq_limits - read frequency limits from device tree
638 *
639 * @wiphy: the wireless device to get extra limits for
640 *
641 * Some devices may have extra limitations specified in DT. This may be useful
642 * for chipsets that normally support more bands but are limited due to board
643 * design (e.g. by antennas or external power amplifier).
644 *
645 * This function reads info from DT and uses it to *modify* channels (disable
646 * unavailable ones). It's usually a *bad* idea to use it in drivers with
647 * shared channel data as DT limitations are device specific. You should make
648 * sure to call it only if channels in wiphy are copied and can be modified
649 * without affecting other devices.
650 *
651 * As this function access device node it has to be called after set_wiphy_dev.
652 * It also modifies channels so they have to be set first.
653 * If using this helper, call it before wiphy_register().
654 */
655#ifdef CONFIG_OF
656void wiphy_read_of_freq_limits(struct wiphy *wiphy);
657#else /* CONFIG_OF */
658static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy)
659{
660}
661#endif /* !CONFIG_OF */
662
663
664/*
665 * Wireless hardware/device configuration structures and methods
666 */
667
668/**
669 * DOC: Actions and configuration
670 *
671 * Each wireless device and each virtual interface offer a set of configuration
672 * operations and other actions that are invoked by userspace. Each of these
673 * actions is described in the operations structure, and the parameters these
674 * operations use are described separately.
675 *
676 * Additionally, some operations are asynchronous and expect to get status
677 * information via some functions that drivers need to call.
678 *
679 * Scanning and BSS list handling with its associated functionality is described
680 * in a separate chapter.
681 */
682
683#define VHT_MUMIMO_GROUPS_DATA_LEN (WLAN_MEMBERSHIP_LEN +\
684 WLAN_USER_POSITION_LEN)
685
686/**
687 * struct vif_params - describes virtual interface parameters
688 * @flags: monitor interface flags, unchanged if 0, otherwise
689 * %MONITOR_FLAG_CHANGED will be set
690 * @use_4addr: use 4-address frames
691 * @macaddr: address to use for this virtual interface.
692 * If this parameter is set to zero address the driver may
693 * determine the address as needed.
694 * This feature is only fully supported by drivers that enable the
695 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
696 ** only p2p devices with specified MAC.
697 * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets
698 * belonging to that MU-MIMO groupID; %NULL if not changed
699 * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring
700 * MU-MIMO packets going to the specified station; %NULL if not changed
701 */
702struct vif_params {
703 u32 flags;
704 int use_4addr;
705 u8 macaddr[ETH_ALEN];
706 const u8 *vht_mumimo_groups;
707 const u8 *vht_mumimo_follow_addr;
708};
709
710/**
711 * struct key_params - key information
712 *
713 * Information about a key
714 *
715 * @key: key material
716 * @key_len: length of key material
717 * @cipher: cipher suite selector
718 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
719 * with the get_key() callback, must be in little endian,
720 * length given by @seq_len.
721 * @seq_len: length of @seq.
722 * @vlan_id: vlan_id for VLAN group key (if nonzero)
723 * @mode: key install mode (RX_TX, NO_TX or SET_TX)
724 */
725struct key_params {
726 const u8 *key;
727 const u8 *seq;
728 int key_len;
729 int seq_len;
730 u16 vlan_id;
731 u32 cipher;
732 enum nl80211_key_mode mode;
733};
734
735/**
736 * struct cfg80211_chan_def - channel definition
737 * @chan: the (control) channel
738 * @width: channel width
739 * @center_freq1: center frequency of first segment
740 * @center_freq2: center frequency of second segment
741 * (only with 80+80 MHz)
742 * @edmg: define the EDMG channels configuration.
743 * If edmg is requested (i.e. the .channels member is non-zero),
744 * chan will define the primary channel and all other
745 * parameters are ignored.
746 * @freq1_offset: offset from @center_freq1, in KHz
747 */
748struct cfg80211_chan_def {
749 struct ieee80211_channel *chan;
750 enum nl80211_chan_width width;
751 u32 center_freq1;
752 u32 center_freq2;
753 struct ieee80211_edmg edmg;
754 u16 freq1_offset;
755};
756
757/*
758 * cfg80211_bitrate_mask - masks for bitrate control
759 */
760struct cfg80211_bitrate_mask {
761 struct {
762 u32 legacy;
763 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN];
764 u16 vht_mcs[NL80211_VHT_NSS_MAX];
765 u16 he_mcs[NL80211_HE_NSS_MAX];
766 enum nl80211_txrate_gi gi;
767 enum nl80211_he_gi he_gi;
768 enum nl80211_he_ltf he_ltf;
769 } control[NUM_NL80211_BANDS];
770};
771
772
773/**
774 * struct cfg80211_tid_cfg - TID specific configuration
775 * @config_override: Flag to notify driver to reset TID configuration
776 * of the peer.
777 * @tids: bitmap of TIDs to modify
778 * @mask: bitmap of attributes indicating which parameter changed,
779 * similar to &nl80211_tid_config_supp.
780 * @noack: noack configuration value for the TID
781 * @retry_long: retry count value
782 * @retry_short: retry count value
783 * @ampdu: Enable/Disable MPDU aggregation
784 * @rtscts: Enable/Disable RTS/CTS
785 * @amsdu: Enable/Disable MSDU aggregation
786 * @txrate_type: Tx bitrate mask type
787 * @txrate_mask: Tx bitrate to be applied for the TID
788 */
789struct cfg80211_tid_cfg {
790 bool config_override;
791 u8 tids;
792 u64 mask;
793 enum nl80211_tid_config noack;
794 u8 retry_long, retry_short;
795 enum nl80211_tid_config ampdu;
796 enum nl80211_tid_config rtscts;
797 enum nl80211_tid_config amsdu;
798 enum nl80211_tx_rate_setting txrate_type;
799 struct cfg80211_bitrate_mask txrate_mask;
800};
801
802/**
803 * struct cfg80211_tid_config - TID configuration
804 * @peer: Station's MAC address
805 * @n_tid_conf: Number of TID specific configurations to be applied
806 * @tid_conf: Configuration change info
807 */
808struct cfg80211_tid_config {
809 const u8 *peer;
810 u32 n_tid_conf;
811 struct cfg80211_tid_cfg tid_conf[];
812};
813
814/**
815 * struct cfg80211_fils_aad - FILS AAD data
816 * @macaddr: STA MAC address
817 * @kek: FILS KEK
818 * @kek_len: FILS KEK length
819 * @snonce: STA Nonce
820 * @anonce: AP Nonce
821 */
822struct cfg80211_fils_aad {
823 const u8 *macaddr;
824 const u8 *kek;
825 u8 kek_len;
826 const u8 *snonce;
827 const u8 *anonce;
828};
829
830/**
831 * cfg80211_get_chandef_type - return old channel type from chandef
832 * @chandef: the channel definition
833 *
834 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
835 * chandef, which must have a bandwidth allowing this conversion.
836 */
837static inline enum nl80211_channel_type
838cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
839{
840 switch (chandef->width) {
841 case NL80211_CHAN_WIDTH_20_NOHT:
842 return NL80211_CHAN_NO_HT;
843 case NL80211_CHAN_WIDTH_20:
844 return NL80211_CHAN_HT20;
845 case NL80211_CHAN_WIDTH_40:
846 if (chandef->center_freq1 > chandef->chan->center_freq)
847 return NL80211_CHAN_HT40PLUS;
848 return NL80211_CHAN_HT40MINUS;
849 default:
850 WARN_ON(1);
851 return NL80211_CHAN_NO_HT;
852 }
853}
854
855/**
856 * cfg80211_chandef_create - create channel definition using channel type
857 * @chandef: the channel definition struct to fill
858 * @channel: the control channel
859 * @chantype: the channel type
860 *
861 * Given a channel type, create a channel definition.
862 */
863void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
864 struct ieee80211_channel *channel,
865 enum nl80211_channel_type chantype);
866
867/**
868 * cfg80211_chandef_identical - check if two channel definitions are identical
869 * @chandef1: first channel definition
870 * @chandef2: second channel definition
871 *
872 * Return: %true if the channels defined by the channel definitions are
873 * identical, %false otherwise.
874 */
875static inline bool
876cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
877 const struct cfg80211_chan_def *chandef2)
878{
879 return (chandef1->chan == chandef2->chan &&
880 chandef1->width == chandef2->width &&
881 chandef1->center_freq1 == chandef2->center_freq1 &&
882 chandef1->freq1_offset == chandef2->freq1_offset &&
883 chandef1->center_freq2 == chandef2->center_freq2);
884}
885
886/**
887 * cfg80211_chandef_is_edmg - check if chandef represents an EDMG channel
888 *
889 * @chandef: the channel definition
890 *
891 * Return: %true if EDMG defined, %false otherwise.
892 */
893static inline bool
894cfg80211_chandef_is_edmg(const struct cfg80211_chan_def *chandef)
895{
896 return chandef->edmg.channels || chandef->edmg.bw_config;
897}
898
899/**
900 * cfg80211_chandef_compatible - check if two channel definitions are compatible
901 * @chandef1: first channel definition
902 * @chandef2: second channel definition
903 *
904 * Return: %NULL if the given channel definitions are incompatible,
905 * chandef1 or chandef2 otherwise.
906 */
907const struct cfg80211_chan_def *
908cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
909 const struct cfg80211_chan_def *chandef2);
910
911/**
912 * cfg80211_chandef_valid - check if a channel definition is valid
913 * @chandef: the channel definition to check
914 * Return: %true if the channel definition is valid. %false otherwise.
915 */
916bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
917
918/**
919 * cfg80211_chandef_usable - check if secondary channels can be used
920 * @wiphy: the wiphy to validate against
921 * @chandef: the channel definition to check
922 * @prohibited_flags: the regulatory channel flags that must not be set
923 * Return: %true if secondary channels are usable. %false otherwise.
924 */
925bool cfg80211_chandef_usable(struct wiphy *wiphy,
926 const struct cfg80211_chan_def *chandef,
927 u32 prohibited_flags);
928
929/**
930 * cfg80211_chandef_dfs_required - checks if radar detection is required
931 * @wiphy: the wiphy to validate against
932 * @chandef: the channel definition to check
933 * @iftype: the interface type as specified in &enum nl80211_iftype
934 * Returns:
935 * 1 if radar detection is required, 0 if it is not, < 0 on error
936 */
937int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
938 const struct cfg80211_chan_def *chandef,
939 enum nl80211_iftype iftype);
940
941/**
942 * ieee80211_chanwidth_rate_flags - return rate flags for channel width
943 * @width: the channel width of the channel
944 *
945 * In some channel types, not all rates may be used - for example CCK
946 * rates may not be used in 5/10 MHz channels.
947 *
948 * Returns: rate flags which apply for this channel width
949 */
950static inline enum ieee80211_rate_flags
951ieee80211_chanwidth_rate_flags(enum nl80211_chan_width width)
952{
953 switch (width) {
954 case NL80211_CHAN_WIDTH_5:
955 return IEEE80211_RATE_SUPPORTS_5MHZ;
956 case NL80211_CHAN_WIDTH_10:
957 return IEEE80211_RATE_SUPPORTS_10MHZ;
958 default:
959 break;
960 }
961 return 0;
962}
963
964/**
965 * ieee80211_chandef_rate_flags - returns rate flags for a channel
966 * @chandef: channel definition for the channel
967 *
968 * See ieee80211_chanwidth_rate_flags().
969 *
970 * Returns: rate flags which apply for this channel
971 */
972static inline enum ieee80211_rate_flags
973ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
974{
975 return ieee80211_chanwidth_rate_flags(chandef->width);
976}
977
978/**
979 * ieee80211_chandef_max_power - maximum transmission power for the chandef
980 *
981 * In some regulations, the transmit power may depend on the configured channel
982 * bandwidth which may be defined as dBm/MHz. This function returns the actual
983 * max_power for non-standard (20 MHz) channels.
984 *
985 * @chandef: channel definition for the channel
986 *
987 * Returns: maximum allowed transmission power in dBm for the chandef
988 */
989static inline int
990ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef)
991{
992 switch (chandef->width) {
993 case NL80211_CHAN_WIDTH_5:
994 return min(chandef->chan->max_reg_power - 6,
995 chandef->chan->max_power);
996 case NL80211_CHAN_WIDTH_10:
997 return min(chandef->chan->max_reg_power - 3,
998 chandef->chan->max_power);
999 default:
1000 break;
1001 }
1002 return chandef->chan->max_power;
1003}
1004
1005/**
1006 * cfg80211_any_usable_channels - check for usable channels
1007 * @wiphy: the wiphy to check for
1008 * @band_mask: which bands to check on
1009 * @prohibited_flags: which channels to not consider usable,
1010 * %IEEE80211_CHAN_DISABLED is always taken into account
1011 */
1012bool cfg80211_any_usable_channels(struct wiphy *wiphy,
1013 unsigned long band_mask,
1014 u32 prohibited_flags);
1015
1016/**
1017 * enum survey_info_flags - survey information flags
1018 *
1019 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
1020 * @SURVEY_INFO_IN_USE: channel is currently being used
1021 * @SURVEY_INFO_TIME: active time (in ms) was filled in
1022 * @SURVEY_INFO_TIME_BUSY: busy time was filled in
1023 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in
1024 * @SURVEY_INFO_TIME_RX: receive time was filled in
1025 * @SURVEY_INFO_TIME_TX: transmit time was filled in
1026 * @SURVEY_INFO_TIME_SCAN: scan time was filled in
1027 * @SURVEY_INFO_TIME_BSS_RX: local BSS receive time was filled in
1028 *
1029 * Used by the driver to indicate which info in &struct survey_info
1030 * it has filled in during the get_survey().
1031 */
1032enum survey_info_flags {
1033 SURVEY_INFO_NOISE_DBM = BIT(0),
1034 SURVEY_INFO_IN_USE = BIT(1),
1035 SURVEY_INFO_TIME = BIT(2),
1036 SURVEY_INFO_TIME_BUSY = BIT(3),
1037 SURVEY_INFO_TIME_EXT_BUSY = BIT(4),
1038 SURVEY_INFO_TIME_RX = BIT(5),
1039 SURVEY_INFO_TIME_TX = BIT(6),
1040 SURVEY_INFO_TIME_SCAN = BIT(7),
1041 SURVEY_INFO_TIME_BSS_RX = BIT(8),
1042};
1043
1044/**
1045 * struct survey_info - channel survey response
1046 *
1047 * @channel: the channel this survey record reports, may be %NULL for a single
1048 * record to report global statistics
1049 * @filled: bitflag of flags from &enum survey_info_flags
1050 * @noise: channel noise in dBm. This and all following fields are
1051 * optional
1052 * @time: amount of time in ms the radio was turn on (on the channel)
1053 * @time_busy: amount of time the primary channel was sensed busy
1054 * @time_ext_busy: amount of time the extension channel was sensed busy
1055 * @time_rx: amount of time the radio spent receiving data
1056 * @time_tx: amount of time the radio spent transmitting data
1057 * @time_scan: amount of time the radio spent for scanning
1058 * @time_bss_rx: amount of time the radio spent receiving data on a local BSS
1059 *
1060 * Used by dump_survey() to report back per-channel survey information.
1061 *
1062 * This structure can later be expanded with things like
1063 * channel duty cycle etc.
1064 */
1065struct survey_info {
1066 struct ieee80211_channel *channel;
1067 u64 time;
1068 u64 time_busy;
1069 u64 time_ext_busy;
1070 u64 time_rx;
1071 u64 time_tx;
1072 u64 time_scan;
1073 u64 time_bss_rx;
1074 u32 filled;
1075 s8 noise;
1076};
1077
1078#define CFG80211_MAX_WEP_KEYS 4
1079#define CFG80211_MAX_NUM_AKM_SUITES 10
1080
1081/**
1082 * struct cfg80211_crypto_settings - Crypto settings
1083 * @wpa_versions: indicates which, if any, WPA versions are enabled
1084 * (from enum nl80211_wpa_versions)
1085 * @cipher_group: group key cipher suite (or 0 if unset)
1086 * @n_ciphers_pairwise: number of AP supported unicast ciphers
1087 * @ciphers_pairwise: unicast key cipher suites
1088 * @n_akm_suites: number of AKM suites
1089 * @akm_suites: AKM suites
1090 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
1091 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1092 * required to assume that the port is unauthorized until authorized by
1093 * user space. Otherwise, port is marked authorized by default.
1094 * @control_port_ethertype: the control port protocol that should be
1095 * allowed through even on unauthorized ports
1096 * @control_port_no_encrypt: TRUE to prevent encryption of control port
1097 * protocol frames.
1098 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
1099 * port frames over NL80211 instead of the network interface.
1100 * @control_port_no_preauth: disables pre-auth rx over the nl80211 control
1101 * port for mac80211
1102 * @wep_keys: static WEP keys, if not NULL points to an array of
1103 * CFG80211_MAX_WEP_KEYS WEP keys
1104 * @wep_tx_key: key index (0..3) of the default TX static WEP key
1105 * @psk: PSK (for devices supporting 4-way-handshake offload)
1106 * @sae_pwd: password for SAE authentication (for devices supporting SAE
1107 * offload)
1108 * @sae_pwd_len: length of SAE password (for devices supporting SAE offload)
1109 * @sae_pwe: The mechanisms allowed for SAE PWE derivation:
1110 *
1111 * NL80211_SAE_PWE_UNSPECIFIED
1112 * Not-specified, used to indicate userspace did not specify any
1113 * preference. The driver should follow its internal policy in
1114 * such a scenario.
1115 *
1116 * NL80211_SAE_PWE_HUNT_AND_PECK
1117 * Allow hunting-and-pecking loop only
1118 *
1119 * NL80211_SAE_PWE_HASH_TO_ELEMENT
1120 * Allow hash-to-element only
1121 *
1122 * NL80211_SAE_PWE_BOTH
1123 * Allow either hunting-and-pecking loop or hash-to-element
1124 */
1125struct cfg80211_crypto_settings {
1126 u32 wpa_versions;
1127 u32 cipher_group;
1128 int n_ciphers_pairwise;
1129 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
1130 int n_akm_suites;
1131 u32 akm_suites[CFG80211_MAX_NUM_AKM_SUITES];
1132 bool control_port;
1133 __be16 control_port_ethertype;
1134 bool control_port_no_encrypt;
1135 bool control_port_over_nl80211;
1136 bool control_port_no_preauth;
1137 struct key_params *wep_keys;
1138 int wep_tx_key;
1139 const u8 *psk;
1140 const u8 *sae_pwd;
1141 u8 sae_pwd_len;
1142 enum nl80211_sae_pwe_mechanism sae_pwe;
1143};
1144
1145/**
1146 * struct cfg80211_mbssid_config - AP settings for multi bssid
1147 *
1148 * @tx_wdev: pointer to the transmitted interface in the MBSSID set
1149 * @index: index of this AP in the multi bssid group.
1150 * @ema: set to true if the beacons should be sent out in EMA mode.
1151 */
1152struct cfg80211_mbssid_config {
1153 struct wireless_dev *tx_wdev;
1154 u8 index;
1155 bool ema;
1156};
1157
1158/**
1159 * struct cfg80211_mbssid_elems - Multiple BSSID elements
1160 *
1161 * @cnt: Number of elements in array %elems.
1162 *
1163 * @elem: Array of multiple BSSID element(s) to be added into Beacon frames.
1164 * @elem.data: Data for multiple BSSID elements.
1165 * @elem.len: Length of data.
1166 */
1167struct cfg80211_mbssid_elems {
1168 u8 cnt;
1169 struct {
1170 const u8 *data;
1171 size_t len;
1172 } elem[];
1173};
1174
1175/**
1176 * struct cfg80211_beacon_data - beacon data
1177 * @link_id: the link ID for the AP MLD link sending this beacon
1178 * @head: head portion of beacon (before TIM IE)
1179 * or %NULL if not changed
1180 * @tail: tail portion of beacon (after TIM IE)
1181 * or %NULL if not changed
1182 * @head_len: length of @head
1183 * @tail_len: length of @tail
1184 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
1185 * @beacon_ies_len: length of beacon_ies in octets
1186 * @proberesp_ies: extra information element(s) to add into Probe Response
1187 * frames or %NULL
1188 * @proberesp_ies_len: length of proberesp_ies in octets
1189 * @assocresp_ies: extra information element(s) to add into (Re)Association
1190 * Response frames or %NULL
1191 * @assocresp_ies_len: length of assocresp_ies in octets
1192 * @probe_resp_len: length of probe response template (@probe_resp)
1193 * @probe_resp: probe response template (AP mode only)
1194 * @mbssid_ies: multiple BSSID elements
1195 * @ftm_responder: enable FTM responder functionality; -1 for no change
1196 * (which also implies no change in LCI/civic location data)
1197 * @lci: Measurement Report element content, starting with Measurement Token
1198 * (measurement type 8)
1199 * @civicloc: Measurement Report element content, starting with Measurement
1200 * Token (measurement type 11)
1201 * @lci_len: LCI data length
1202 * @civicloc_len: Civic location data length
1203 * @he_bss_color: BSS Color settings
1204 * @he_bss_color_valid: indicates whether bss color
1205 * attribute is present in beacon data or not.
1206 */
1207struct cfg80211_beacon_data {
1208 unsigned int link_id;
1209
1210 const u8 *head, *tail;
1211 const u8 *beacon_ies;
1212 const u8 *proberesp_ies;
1213 const u8 *assocresp_ies;
1214 const u8 *probe_resp;
1215 const u8 *lci;
1216 const u8 *civicloc;
1217 struct cfg80211_mbssid_elems *mbssid_ies;
1218 s8 ftm_responder;
1219
1220 size_t head_len, tail_len;
1221 size_t beacon_ies_len;
1222 size_t proberesp_ies_len;
1223 size_t assocresp_ies_len;
1224 size_t probe_resp_len;
1225 size_t lci_len;
1226 size_t civicloc_len;
1227 struct cfg80211_he_bss_color he_bss_color;
1228 bool he_bss_color_valid;
1229};
1230
1231struct mac_address {
1232 u8 addr[ETH_ALEN];
1233};
1234
1235/**
1236 * struct cfg80211_acl_data - Access control list data
1237 *
1238 * @acl_policy: ACL policy to be applied on the station's
1239 * entry specified by mac_addr
1240 * @n_acl_entries: Number of MAC address entries passed
1241 * @mac_addrs: List of MAC addresses of stations to be used for ACL
1242 */
1243struct cfg80211_acl_data {
1244 enum nl80211_acl_policy acl_policy;
1245 int n_acl_entries;
1246
1247 /* Keep it last */
1248 struct mac_address mac_addrs[];
1249};
1250
1251/**
1252 * struct cfg80211_fils_discovery - FILS discovery parameters from
1253 * IEEE Std 802.11ai-2016, Annex C.3 MIB detail.
1254 *
1255 * @min_interval: Minimum packet interval in TUs (0 - 10000)
1256 * @max_interval: Maximum packet interval in TUs (0 - 10000)
1257 * @tmpl_len: Template length
1258 * @tmpl: Template data for FILS discovery frame including the action
1259 * frame headers.
1260 */
1261struct cfg80211_fils_discovery {
1262 u32 min_interval;
1263 u32 max_interval;
1264 size_t tmpl_len;
1265 const u8 *tmpl;
1266};
1267
1268/**
1269 * struct cfg80211_unsol_bcast_probe_resp - Unsolicited broadcast probe
1270 * response parameters in 6GHz.
1271 *
1272 * @interval: Packet interval in TUs. Maximum allowed is 20 TU, as mentioned
1273 * in IEEE P802.11ax/D6.0 26.17.2.3.2 - AP behavior for fast passive
1274 * scanning
1275 * @tmpl_len: Template length
1276 * @tmpl: Template data for probe response
1277 */
1278struct cfg80211_unsol_bcast_probe_resp {
1279 u32 interval;
1280 size_t tmpl_len;
1281 const u8 *tmpl;
1282};
1283
1284/**
1285 * struct cfg80211_ap_settings - AP configuration
1286 *
1287 * Used to configure an AP interface.
1288 *
1289 * @chandef: defines the channel to use
1290 * @beacon: beacon data
1291 * @beacon_interval: beacon interval
1292 * @dtim_period: DTIM period
1293 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
1294 * user space)
1295 * @ssid_len: length of @ssid
1296 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
1297 * @crypto: crypto settings
1298 * @privacy: the BSS uses privacy
1299 * @auth_type: Authentication type (algorithm)
1300 * @smps_mode: SMPS mode
1301 * @inactivity_timeout: time in seconds to determine station's inactivity.
1302 * @p2p_ctwindow: P2P CT Window
1303 * @p2p_opp_ps: P2P opportunistic PS
1304 * @acl: ACL configuration used by the drivers which has support for
1305 * MAC address based access control
1306 * @pbss: If set, start as a PCP instead of AP. Relevant for DMG
1307 * networks.
1308 * @beacon_rate: bitrate to be used for beacons
1309 * @ht_cap: HT capabilities (or %NULL if HT isn't enabled)
1310 * @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled)
1311 * @he_cap: HE capabilities (or %NULL if HE isn't enabled)
1312 * @eht_cap: EHT capabilities (or %NULL if EHT isn't enabled)
1313 * @eht_oper: EHT operation IE (or %NULL if EHT isn't enabled)
1314 * @ht_required: stations must support HT
1315 * @vht_required: stations must support VHT
1316 * @twt_responder: Enable Target Wait Time
1317 * @he_required: stations must support HE
1318 * @sae_h2e_required: stations must support direct H2E technique in SAE
1319 * @flags: flags, as defined in enum cfg80211_ap_settings_flags
1320 * @he_obss_pd: OBSS Packet Detection settings
1321 * @he_oper: HE operation IE (or %NULL if HE isn't enabled)
1322 * @fils_discovery: FILS discovery transmission parameters
1323 * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters
1324 * @mbssid_config: AP settings for multiple bssid
1325 */
1326struct cfg80211_ap_settings {
1327 struct cfg80211_chan_def chandef;
1328
1329 struct cfg80211_beacon_data beacon;
1330
1331 int beacon_interval, dtim_period;
1332 const u8 *ssid;
1333 size_t ssid_len;
1334 enum nl80211_hidden_ssid hidden_ssid;
1335 struct cfg80211_crypto_settings crypto;
1336 bool privacy;
1337 enum nl80211_auth_type auth_type;
1338 enum nl80211_smps_mode smps_mode;
1339 int inactivity_timeout;
1340 u8 p2p_ctwindow;
1341 bool p2p_opp_ps;
1342 const struct cfg80211_acl_data *acl;
1343 bool pbss;
1344 struct cfg80211_bitrate_mask beacon_rate;
1345
1346 const struct ieee80211_ht_cap *ht_cap;
1347 const struct ieee80211_vht_cap *vht_cap;
1348 const struct ieee80211_he_cap_elem *he_cap;
1349 const struct ieee80211_he_operation *he_oper;
1350 const struct ieee80211_eht_cap_elem *eht_cap;
1351 const struct ieee80211_eht_operation *eht_oper;
1352 bool ht_required, vht_required, he_required, sae_h2e_required;
1353 bool twt_responder;
1354 u32 flags;
1355 struct ieee80211_he_obss_pd he_obss_pd;
1356 struct cfg80211_fils_discovery fils_discovery;
1357 struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp;
1358 struct cfg80211_mbssid_config mbssid_config;
1359};
1360
1361/**
1362 * struct cfg80211_csa_settings - channel switch settings
1363 *
1364 * Used for channel switch
1365 *
1366 * @chandef: defines the channel to use after the switch
1367 * @beacon_csa: beacon data while performing the switch
1368 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
1369 * @counter_offsets_presp: offsets of the counters within the probe response
1370 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
1371 * @n_counter_offsets_presp: number of csa counters in the probe response
1372 * @beacon_after: beacon data to be used on the new channel
1373 * @radar_required: whether radar detection is required on the new channel
1374 * @block_tx: whether transmissions should be blocked while changing
1375 * @count: number of beacons until switch
1376 */
1377struct cfg80211_csa_settings {
1378 struct cfg80211_chan_def chandef;
1379 struct cfg80211_beacon_data beacon_csa;
1380 const u16 *counter_offsets_beacon;
1381 const u16 *counter_offsets_presp;
1382 unsigned int n_counter_offsets_beacon;
1383 unsigned int n_counter_offsets_presp;
1384 struct cfg80211_beacon_data beacon_after;
1385 bool radar_required;
1386 bool block_tx;
1387 u8 count;
1388};
1389
1390/**
1391 * struct cfg80211_color_change_settings - color change settings
1392 *
1393 * Used for bss color change
1394 *
1395 * @beacon_color_change: beacon data while performing the color countdown
1396 * @counter_offset_beacon: offsets of the counters within the beacon (tail)
1397 * @counter_offset_presp: offsets of the counters within the probe response
1398 * @beacon_next: beacon data to be used after the color change
1399 * @count: number of beacons until the color change
1400 * @color: the color used after the change
1401 */
1402struct cfg80211_color_change_settings {
1403 struct cfg80211_beacon_data beacon_color_change;
1404 u16 counter_offset_beacon;
1405 u16 counter_offset_presp;
1406 struct cfg80211_beacon_data beacon_next;
1407 u8 count;
1408 u8 color;
1409};
1410
1411/**
1412 * struct iface_combination_params - input parameters for interface combinations
1413 *
1414 * Used to pass interface combination parameters
1415 *
1416 * @num_different_channels: the number of different channels we want
1417 * to use for verification
1418 * @radar_detect: a bitmap where each bit corresponds to a channel
1419 * width where radar detection is needed, as in the definition of
1420 * &struct ieee80211_iface_combination.@radar_detect_widths
1421 * @iftype_num: array with the number of interfaces of each interface
1422 * type. The index is the interface type as specified in &enum
1423 * nl80211_iftype.
1424 * @new_beacon_int: set this to the beacon interval of a new interface
1425 * that's not operating yet, if such is to be checked as part of
1426 * the verification
1427 */
1428struct iface_combination_params {
1429 int num_different_channels;
1430 u8 radar_detect;
1431 int iftype_num[NUM_NL80211_IFTYPES];
1432 u32 new_beacon_int;
1433};
1434
1435/**
1436 * enum station_parameters_apply_mask - station parameter values to apply
1437 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
1438 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
1439 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
1440 * @STATION_PARAM_APPLY_STA_TXPOWER: apply tx power for STA
1441 *
1442 * Not all station parameters have in-band "no change" signalling,
1443 * for those that don't these flags will are used.
1444 */
1445enum station_parameters_apply_mask {
1446 STATION_PARAM_APPLY_UAPSD = BIT(0),
1447 STATION_PARAM_APPLY_CAPABILITY = BIT(1),
1448 STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
1449};
1450
1451/**
1452 * struct sta_txpwr - station txpower configuration
1453 *
1454 * Used to configure txpower for station.
1455 *
1456 * @power: tx power (in dBm) to be used for sending data traffic. If tx power
1457 * is not provided, the default per-interface tx power setting will be
1458 * overriding. Driver should be picking up the lowest tx power, either tx
1459 * power per-interface or per-station.
1460 * @type: In particular if TPC %type is NL80211_TX_POWER_LIMITED then tx power
1461 * will be less than or equal to specified from userspace, whereas if TPC
1462 * %type is NL80211_TX_POWER_AUTOMATIC then it indicates default tx power.
1463 * NL80211_TX_POWER_FIXED is not a valid configuration option for
1464 * per peer TPC.
1465 */
1466struct sta_txpwr {
1467 s16 power;
1468 enum nl80211_tx_power_setting type;
1469};
1470
1471/**
1472 * struct link_station_parameters - link station parameters
1473 *
1474 * Used to change and create a new link station.
1475 *
1476 * @mld_mac: MAC address of the station
1477 * @link_id: the link id (-1 for non-MLD station)
1478 * @link_mac: MAC address of the link
1479 * @supported_rates: supported rates in IEEE 802.11 format
1480 * (or NULL for no change)
1481 * @supported_rates_len: number of supported rates
1482 * @ht_capa: HT capabilities of station
1483 * @vht_capa: VHT capabilities of station
1484 * @opmode_notif: operating mode field from Operating Mode Notification
1485 * @opmode_notif_used: information if operating mode field is used
1486 * @he_capa: HE capabilities of station
1487 * @he_capa_len: the length of the HE capabilities
1488 * @txpwr: transmit power for an associated station
1489 * @txpwr_set: txpwr field is set
1490 * @he_6ghz_capa: HE 6 GHz Band capabilities of station
1491 * @eht_capa: EHT capabilities of station
1492 * @eht_capa_len: the length of the EHT capabilities
1493 */
1494struct link_station_parameters {
1495 const u8 *mld_mac;
1496 int link_id;
1497 const u8 *link_mac;
1498 const u8 *supported_rates;
1499 u8 supported_rates_len;
1500 const struct ieee80211_ht_cap *ht_capa;
1501 const struct ieee80211_vht_cap *vht_capa;
1502 u8 opmode_notif;
1503 bool opmode_notif_used;
1504 const struct ieee80211_he_cap_elem *he_capa;
1505 u8 he_capa_len;
1506 struct sta_txpwr txpwr;
1507 bool txpwr_set;
1508 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1509 const struct ieee80211_eht_cap_elem *eht_capa;
1510 u8 eht_capa_len;
1511};
1512
1513/**
1514 * struct link_station_del_parameters - link station deletion parameters
1515 *
1516 * Used to delete a link station entry (or all stations).
1517 *
1518 * @mld_mac: MAC address of the station
1519 * @link_id: the link id
1520 */
1521struct link_station_del_parameters {
1522 const u8 *mld_mac;
1523 u32 link_id;
1524};
1525
1526/**
1527 * struct station_parameters - station parameters
1528 *
1529 * Used to change and create a new station.
1530 *
1531 * @vlan: vlan interface station should belong to
1532 * @sta_flags_mask: station flags that changed
1533 * (bitmask of BIT(%NL80211_STA_FLAG_...))
1534 * @sta_flags_set: station flags values
1535 * (bitmask of BIT(%NL80211_STA_FLAG_...))
1536 * @listen_interval: listen interval or -1 for no change
1537 * @aid: AID or zero for no change
1538 * @vlan_id: VLAN ID for station (if nonzero)
1539 * @peer_aid: mesh peer AID or zero for no change
1540 * @plink_action: plink action to take
1541 * @plink_state: set the peer link state for a station
1542 * @uapsd_queues: bitmap of queues configured for uapsd. same format
1543 * as the AC bitmap in the QoS info field
1544 * @max_sp: max Service Period. same format as the MAX_SP in the
1545 * QoS info field (but already shifted down)
1546 * @sta_modify_mask: bitmap indicating which parameters changed
1547 * (for those that don't have a natural "no change" value),
1548 * see &enum station_parameters_apply_mask
1549 * @local_pm: local link-specific mesh power save mode (no change when set
1550 * to unknown)
1551 * @capability: station capability
1552 * @ext_capab: extended capabilities of the station
1553 * @ext_capab_len: number of extended capabilities
1554 * @supported_channels: supported channels in IEEE 802.11 format
1555 * @supported_channels_len: number of supported channels
1556 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
1557 * @supported_oper_classes_len: number of supported operating classes
1558 * @support_p2p_ps: information if station supports P2P PS mechanism
1559 * @airtime_weight: airtime scheduler weight for this station
1560 * @link_sta_params: link related params.
1561 */
1562struct station_parameters {
1563 struct net_device *vlan;
1564 u32 sta_flags_mask, sta_flags_set;
1565 u32 sta_modify_mask;
1566 int listen_interval;
1567 u16 aid;
1568 u16 vlan_id;
1569 u16 peer_aid;
1570 u8 plink_action;
1571 u8 plink_state;
1572 u8 uapsd_queues;
1573 u8 max_sp;
1574 enum nl80211_mesh_power_mode local_pm;
1575 u16 capability;
1576 const u8 *ext_capab;
1577 u8 ext_capab_len;
1578 const u8 *supported_channels;
1579 u8 supported_channels_len;
1580 const u8 *supported_oper_classes;
1581 u8 supported_oper_classes_len;
1582 int support_p2p_ps;
1583 u16 airtime_weight;
1584 struct link_station_parameters link_sta_params;
1585};
1586
1587/**
1588 * struct station_del_parameters - station deletion parameters
1589 *
1590 * Used to delete a station entry (or all stations).
1591 *
1592 * @mac: MAC address of the station to remove or NULL to remove all stations
1593 * @subtype: Management frame subtype to use for indicating removal
1594 * (10 = Disassociation, 12 = Deauthentication)
1595 * @reason_code: Reason code for the Disassociation/Deauthentication frame
1596 */
1597struct station_del_parameters {
1598 const u8 *mac;
1599 u8 subtype;
1600 u16 reason_code;
1601};
1602
1603/**
1604 * enum cfg80211_station_type - the type of station being modified
1605 * @CFG80211_STA_AP_CLIENT: client of an AP interface
1606 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
1607 * unassociated (update properties for this type of client is permitted)
1608 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
1609 * the AP MLME in the device
1610 * @CFG80211_STA_AP_STA: AP station on managed interface
1611 * @CFG80211_STA_IBSS: IBSS station
1612 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
1613 * while TDLS setup is in progress, it moves out of this state when
1614 * being marked authorized; use this only if TDLS with external setup is
1615 * supported/used)
1616 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
1617 * entry that is operating, has been marked authorized by userspace)
1618 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
1619 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
1620 */
1621enum cfg80211_station_type {
1622 CFG80211_STA_AP_CLIENT,
1623 CFG80211_STA_AP_CLIENT_UNASSOC,
1624 CFG80211_STA_AP_MLME_CLIENT,
1625 CFG80211_STA_AP_STA,
1626 CFG80211_STA_IBSS,
1627 CFG80211_STA_TDLS_PEER_SETUP,
1628 CFG80211_STA_TDLS_PEER_ACTIVE,
1629 CFG80211_STA_MESH_PEER_KERNEL,
1630 CFG80211_STA_MESH_PEER_USER,
1631};
1632
1633/**
1634 * cfg80211_check_station_change - validate parameter changes
1635 * @wiphy: the wiphy this operates on
1636 * @params: the new parameters for a station
1637 * @statype: the type of station being modified
1638 *
1639 * Utility function for the @change_station driver method. Call this function
1640 * with the appropriate station type looking up the station (and checking that
1641 * it exists). It will verify whether the station change is acceptable, and if
1642 * not will return an error code. Note that it may modify the parameters for
1643 * backward compatibility reasons, so don't use them before calling this.
1644 */
1645int cfg80211_check_station_change(struct wiphy *wiphy,
1646 struct station_parameters *params,
1647 enum cfg80211_station_type statype);
1648
1649/**
1650 * enum rate_info_flags - bitrate info flags
1651 *
1652 * Used by the driver to indicate the specific rate transmission
1653 * type for 802.11n transmissions.
1654 *
1655 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
1656 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
1657 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
1658 * @RATE_INFO_FLAGS_DMG: 60GHz MCS
1659 * @RATE_INFO_FLAGS_HE_MCS: HE MCS information
1660 * @RATE_INFO_FLAGS_EDMG: 60GHz MCS in EDMG mode
1661 * @RATE_INFO_FLAGS_EXTENDED_SC_DMG: 60GHz extended SC MCS
1662 * @RATE_INFO_FLAGS_EHT_MCS: EHT MCS information
1663 */
1664enum rate_info_flags {
1665 RATE_INFO_FLAGS_MCS = BIT(0),
1666 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
1667 RATE_INFO_FLAGS_SHORT_GI = BIT(2),
1668 RATE_INFO_FLAGS_DMG = BIT(3),
1669 RATE_INFO_FLAGS_HE_MCS = BIT(4),
1670 RATE_INFO_FLAGS_EDMG = BIT(5),
1671 RATE_INFO_FLAGS_EXTENDED_SC_DMG = BIT(6),
1672 RATE_INFO_FLAGS_EHT_MCS = BIT(7),
1673};
1674
1675/**
1676 * enum rate_info_bw - rate bandwidth information
1677 *
1678 * Used by the driver to indicate the rate bandwidth.
1679 *
1680 * @RATE_INFO_BW_5: 5 MHz bandwidth
1681 * @RATE_INFO_BW_10: 10 MHz bandwidth
1682 * @RATE_INFO_BW_20: 20 MHz bandwidth
1683 * @RATE_INFO_BW_40: 40 MHz bandwidth
1684 * @RATE_INFO_BW_80: 80 MHz bandwidth
1685 * @RATE_INFO_BW_160: 160 MHz bandwidth
1686 * @RATE_INFO_BW_HE_RU: bandwidth determined by HE RU allocation
1687 * @RATE_INFO_BW_320: 320 MHz bandwidth
1688 * @RATE_INFO_BW_EHT_RU: bandwidth determined by EHT RU allocation
1689 */
1690enum rate_info_bw {
1691 RATE_INFO_BW_20 = 0,
1692 RATE_INFO_BW_5,
1693 RATE_INFO_BW_10,
1694 RATE_INFO_BW_40,
1695 RATE_INFO_BW_80,
1696 RATE_INFO_BW_160,
1697 RATE_INFO_BW_HE_RU,
1698 RATE_INFO_BW_320,
1699 RATE_INFO_BW_EHT_RU,
1700};
1701
1702/**
1703 * struct rate_info - bitrate information
1704 *
1705 * Information about a receiving or transmitting bitrate
1706 *
1707 * @flags: bitflag of flags from &enum rate_info_flags
1708 * @mcs: mcs index if struct describes an HT/VHT/HE rate
1709 * @legacy: bitrate in 100kbit/s for 802.11abg
1710 * @nss: number of streams (VHT & HE only)
1711 * @bw: bandwidth (from &enum rate_info_bw)
1712 * @he_gi: HE guard interval (from &enum nl80211_he_gi)
1713 * @he_dcm: HE DCM value
1714 * @he_ru_alloc: HE RU allocation (from &enum nl80211_he_ru_alloc,
1715 * only valid if bw is %RATE_INFO_BW_HE_RU)
1716 * @n_bonded_ch: In case of EDMG the number of bonded channels (1-4)
1717 * @eht_gi: EHT guard interval (from &enum nl80211_eht_gi)
1718 * @eht_ru_alloc: EHT RU allocation (from &enum nl80211_eht_ru_alloc,
1719 * only valid if bw is %RATE_INFO_BW_EHT_RU)
1720 */
1721struct rate_info {
1722 u8 flags;
1723 u8 mcs;
1724 u16 legacy;
1725 u8 nss;
1726 u8 bw;
1727 u8 he_gi;
1728 u8 he_dcm;
1729 u8 he_ru_alloc;
1730 u8 n_bonded_ch;
1731 u8 eht_gi;
1732 u8 eht_ru_alloc;
1733};
1734
1735/**
1736 * enum bss_param_flags - bitrate info flags
1737 *
1738 * Used by the driver to indicate the specific rate transmission
1739 * type for 802.11n transmissions.
1740 *
1741 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
1742 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
1743 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
1744 */
1745enum bss_param_flags {
1746 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
1747 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
1748 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
1749};
1750
1751/**
1752 * struct sta_bss_parameters - BSS parameters for the attached station
1753 *
1754 * Information about the currently associated BSS
1755 *
1756 * @flags: bitflag of flags from &enum bss_param_flags
1757 * @dtim_period: DTIM period for the BSS
1758 * @beacon_interval: beacon interval
1759 */
1760struct sta_bss_parameters {
1761 u8 flags;
1762 u8 dtim_period;
1763 u16 beacon_interval;
1764};
1765
1766/**
1767 * struct cfg80211_txq_stats - TXQ statistics for this TID
1768 * @filled: bitmap of flags using the bits of &enum nl80211_txq_stats to
1769 * indicate the relevant values in this struct are filled
1770 * @backlog_bytes: total number of bytes currently backlogged
1771 * @backlog_packets: total number of packets currently backlogged
1772 * @flows: number of new flows seen
1773 * @drops: total number of packets dropped
1774 * @ecn_marks: total number of packets marked with ECN CE
1775 * @overlimit: number of drops due to queue space overflow
1776 * @overmemory: number of drops due to memory limit overflow
1777 * @collisions: number of hash collisions
1778 * @tx_bytes: total number of bytes dequeued
1779 * @tx_packets: total number of packets dequeued
1780 * @max_flows: maximum number of flows supported
1781 */
1782struct cfg80211_txq_stats {
1783 u32 filled;
1784 u32 backlog_bytes;
1785 u32 backlog_packets;
1786 u32 flows;
1787 u32 drops;
1788 u32 ecn_marks;
1789 u32 overlimit;
1790 u32 overmemory;
1791 u32 collisions;
1792 u32 tx_bytes;
1793 u32 tx_packets;
1794 u32 max_flows;
1795};
1796
1797/**
1798 * struct cfg80211_tid_stats - per-TID statistics
1799 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to
1800 * indicate the relevant values in this struct are filled
1801 * @rx_msdu: number of received MSDUs
1802 * @tx_msdu: number of (attempted) transmitted MSDUs
1803 * @tx_msdu_retries: number of retries (not counting the first) for
1804 * transmitted MSDUs
1805 * @tx_msdu_failed: number of failed transmitted MSDUs
1806 * @txq_stats: TXQ statistics
1807 */
1808struct cfg80211_tid_stats {
1809 u32 filled;
1810 u64 rx_msdu;
1811 u64 tx_msdu;
1812 u64 tx_msdu_retries;
1813 u64 tx_msdu_failed;
1814 struct cfg80211_txq_stats txq_stats;
1815};
1816
1817#define IEEE80211_MAX_CHAINS 4
1818
1819/**
1820 * struct station_info - station information
1821 *
1822 * Station information filled by driver for get_station() and dump_station.
1823 *
1824 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to
1825 * indicate the relevant values in this struct for them
1826 * @connected_time: time(in secs) since a station is last connected
1827 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1828 * @assoc_at: bootime (ns) of the last association
1829 * @rx_bytes: bytes (size of MPDUs) received from this station
1830 * @tx_bytes: bytes (size of MPDUs) transmitted to this station
1831 * @llid: mesh local link id
1832 * @plid: mesh peer link id
1833 * @plink_state: mesh peer link state
1834 * @signal: The signal strength, type depends on the wiphy's signal_type.
1835 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1836 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1837 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1838 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1839 * @chain_signal: per-chain signal strength of last received packet in dBm
1840 * @chain_signal_avg: per-chain signal strength average in dBm
1841 * @txrate: current unicast bitrate from this station
1842 * @rxrate: current unicast bitrate to this station
1843 * @rx_packets: packets (MSDUs & MMPDUs) received from this station
1844 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station
1845 * @tx_retries: cumulative retry counts (MPDUs)
1846 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK)
1847 * @rx_dropped_misc: Dropped for un-specified reason.
1848 * @bss_param: current BSS parameters
1849 * @generation: generation number for nl80211 dumps.
1850 * This number should increase every time the list of stations
1851 * changes, i.e. when a station is added or removed, so that
1852 * userspace can tell whether it got a consistent snapshot.
1853 * @assoc_req_ies: IEs from (Re)Association Request.
1854 * This is used only when in AP mode with drivers that do not use
1855 * user space MLME/SME implementation. The information is provided for
1856 * the cfg80211_new_sta() calls to notify user space of the IEs.
1857 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1858 * @sta_flags: station flags mask & values
1859 * @beacon_loss_count: Number of times beacon loss event has triggered.
1860 * @t_offset: Time offset of the station relative to this host.
1861 * @local_pm: local mesh STA power save mode
1862 * @peer_pm: peer mesh STA power save mode
1863 * @nonpeer_pm: non-peer mesh STA power save mode
1864 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1865 * towards this station.
1866 * @rx_beacon: number of beacons received from this peer
1867 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
1868 * from this peer
1869 * @connected_to_gate: true if mesh STA has a path to mesh gate
1870 * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer
1871 * @tx_duration: aggregate PPDU duration(usecs) for all the frames to a peer
1872 * @airtime_weight: current airtime scheduling weight
1873 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
1874 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
1875 * Note that this doesn't use the @filled bit, but is used if non-NULL.
1876 * @ack_signal: signal strength (in dBm) of the last ACK frame.
1877 * @avg_ack_signal: average rssi value of ack packet for the no of msdu's has
1878 * been sent.
1879 * @rx_mpdu_count: number of MPDUs received from this station
1880 * @fcs_err_count: number of packets (MPDUs) received from this station with
1881 * an FCS error. This counter should be incremented only when TA of the
1882 * received packet with an FCS error matches the peer MAC address.
1883 * @airtime_link_metric: mesh airtime link metric.
1884 * @connected_to_as: true if mesh STA has a path to authentication server
1885 */
1886struct station_info {
1887 u64 filled;
1888 u32 connected_time;
1889 u32 inactive_time;
1890 u64 assoc_at;
1891 u64 rx_bytes;
1892 u64 tx_bytes;
1893 u16 llid;
1894 u16 plid;
1895 u8 plink_state;
1896 s8 signal;
1897 s8 signal_avg;
1898
1899 u8 chains;
1900 s8 chain_signal[IEEE80211_MAX_CHAINS];
1901 s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
1902
1903 struct rate_info txrate;
1904 struct rate_info rxrate;
1905 u32 rx_packets;
1906 u32 tx_packets;
1907 u32 tx_retries;
1908 u32 tx_failed;
1909 u32 rx_dropped_misc;
1910 struct sta_bss_parameters bss_param;
1911 struct nl80211_sta_flag_update sta_flags;
1912
1913 int generation;
1914
1915 const u8 *assoc_req_ies;
1916 size_t assoc_req_ies_len;
1917
1918 u32 beacon_loss_count;
1919 s64 t_offset;
1920 enum nl80211_mesh_power_mode local_pm;
1921 enum nl80211_mesh_power_mode peer_pm;
1922 enum nl80211_mesh_power_mode nonpeer_pm;
1923
1924 u32 expected_throughput;
1925
1926 u64 tx_duration;
1927 u64 rx_duration;
1928 u64 rx_beacon;
1929 u8 rx_beacon_signal_avg;
1930 u8 connected_to_gate;
1931
1932 struct cfg80211_tid_stats *pertid;
1933 s8 ack_signal;
1934 s8 avg_ack_signal;
1935
1936 u16 airtime_weight;
1937
1938 u32 rx_mpdu_count;
1939 u32 fcs_err_count;
1940
1941 u32 airtime_link_metric;
1942
1943 u8 connected_to_as;
1944};
1945
1946/**
1947 * struct cfg80211_sar_sub_specs - sub specs limit
1948 * @power: power limitation in 0.25dbm
1949 * @freq_range_index: index the power limitation applies to
1950 */
1951struct cfg80211_sar_sub_specs {
1952 s32 power;
1953 u32 freq_range_index;
1954};
1955
1956/**
1957 * struct cfg80211_sar_specs - sar limit specs
1958 * @type: it's set with power in 0.25dbm or other types
1959 * @num_sub_specs: number of sar sub specs
1960 * @sub_specs: memory to hold the sar sub specs
1961 */
1962struct cfg80211_sar_specs {
1963 enum nl80211_sar_type type;
1964 u32 num_sub_specs;
1965 struct cfg80211_sar_sub_specs sub_specs[];
1966};
1967
1968
1969/**
1970 * struct cfg80211_sar_freq_ranges - sar frequency ranges
1971 * @start_freq: start range edge frequency
1972 * @end_freq: end range edge frequency
1973 */
1974struct cfg80211_sar_freq_ranges {
1975 u32 start_freq;
1976 u32 end_freq;
1977};
1978
1979/**
1980 * struct cfg80211_sar_capa - sar limit capability
1981 * @type: it's set via power in 0.25dbm or other types
1982 * @num_freq_ranges: number of frequency ranges
1983 * @freq_ranges: memory to hold the freq ranges.
1984 *
1985 * Note: WLAN driver may append new ranges or split an existing
1986 * range to small ones and then append them.
1987 */
1988struct cfg80211_sar_capa {
1989 enum nl80211_sar_type type;
1990 u32 num_freq_ranges;
1991 const struct cfg80211_sar_freq_ranges *freq_ranges;
1992};
1993
1994#if IS_ENABLED(CONFIG_CFG80211)
1995/**
1996 * cfg80211_get_station - retrieve information about a given station
1997 * @dev: the device where the station is supposed to be connected to
1998 * @mac_addr: the mac address of the station of interest
1999 * @sinfo: pointer to the structure to fill with the information
2000 *
2001 * Returns 0 on success and sinfo is filled with the available information
2002 * otherwise returns a negative error code and the content of sinfo has to be
2003 * considered undefined.
2004 */
2005int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
2006 struct station_info *sinfo);
2007#else
2008static inline int cfg80211_get_station(struct net_device *dev,
2009 const u8 *mac_addr,
2010 struct station_info *sinfo)
2011{
2012 return -ENOENT;
2013}
2014#endif
2015
2016/**
2017 * enum monitor_flags - monitor flags
2018 *
2019 * Monitor interface configuration flags. Note that these must be the bits
2020 * according to the nl80211 flags.
2021 *
2022 * @MONITOR_FLAG_CHANGED: set if the flags were changed
2023 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
2024 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
2025 * @MONITOR_FLAG_CONTROL: pass control frames
2026 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
2027 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
2028 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
2029 */
2030enum monitor_flags {
2031 MONITOR_FLAG_CHANGED = 1<<__NL80211_MNTR_FLAG_INVALID,
2032 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
2033 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
2034 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
2035 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
2036 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
2037 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE,
2038};
2039
2040/**
2041 * enum mpath_info_flags - mesh path information flags
2042 *
2043 * Used by the driver to indicate which info in &struct mpath_info it has filled
2044 * in during get_station() or dump_station().
2045 *
2046 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
2047 * @MPATH_INFO_SN: @sn filled
2048 * @MPATH_INFO_METRIC: @metric filled
2049 * @MPATH_INFO_EXPTIME: @exptime filled
2050 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
2051 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
2052 * @MPATH_INFO_FLAGS: @flags filled
2053 * @MPATH_INFO_HOP_COUNT: @hop_count filled
2054 * @MPATH_INFO_PATH_CHANGE: @path_change_count filled
2055 */
2056enum mpath_info_flags {
2057 MPATH_INFO_FRAME_QLEN = BIT(0),
2058 MPATH_INFO_SN = BIT(1),
2059 MPATH_INFO_METRIC = BIT(2),
2060 MPATH_INFO_EXPTIME = BIT(3),
2061 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
2062 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
2063 MPATH_INFO_FLAGS = BIT(6),
2064 MPATH_INFO_HOP_COUNT = BIT(7),
2065 MPATH_INFO_PATH_CHANGE = BIT(8),
2066};
2067
2068/**
2069 * struct mpath_info - mesh path information
2070 *
2071 * Mesh path information filled by driver for get_mpath() and dump_mpath().
2072 *
2073 * @filled: bitfield of flags from &enum mpath_info_flags
2074 * @frame_qlen: number of queued frames for this destination
2075 * @sn: target sequence number
2076 * @metric: metric (cost) of this mesh path
2077 * @exptime: expiration time for the mesh path from now, in msecs
2078 * @flags: mesh path flags
2079 * @discovery_timeout: total mesh path discovery timeout, in msecs
2080 * @discovery_retries: mesh path discovery retries
2081 * @generation: generation number for nl80211 dumps.
2082 * This number should increase every time the list of mesh paths
2083 * changes, i.e. when a station is added or removed, so that
2084 * userspace can tell whether it got a consistent snapshot.
2085 * @hop_count: hops to destination
2086 * @path_change_count: total number of path changes to destination
2087 */
2088struct mpath_info {
2089 u32 filled;
2090 u32 frame_qlen;
2091 u32 sn;
2092 u32 metric;
2093 u32 exptime;
2094 u32 discovery_timeout;
2095 u8 discovery_retries;
2096 u8 flags;
2097 u8 hop_count;
2098 u32 path_change_count;
2099
2100 int generation;
2101};
2102
2103/**
2104 * struct bss_parameters - BSS parameters
2105 *
2106 * Used to change BSS parameters (mainly for AP mode).
2107 *
2108 * @link_id: link_id or -1 for non-MLD
2109 * @use_cts_prot: Whether to use CTS protection
2110 * (0 = no, 1 = yes, -1 = do not change)
2111 * @use_short_preamble: Whether the use of short preambles is allowed
2112 * (0 = no, 1 = yes, -1 = do not change)
2113 * @use_short_slot_time: Whether the use of short slot time is allowed
2114 * (0 = no, 1 = yes, -1 = do not change)
2115 * @basic_rates: basic rates in IEEE 802.11 format
2116 * (or NULL for no change)
2117 * @basic_rates_len: number of basic rates
2118 * @ap_isolate: do not forward packets between connected stations
2119 * (0 = no, 1 = yes, -1 = do not change)
2120 * @ht_opmode: HT Operation mode
2121 * (u16 = opmode, -1 = do not change)
2122 * @p2p_ctwindow: P2P CT Window (-1 = no change)
2123 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
2124 */
2125struct bss_parameters {
2126 int link_id;
2127 int use_cts_prot;
2128 int use_short_preamble;
2129 int use_short_slot_time;
2130 const u8 *basic_rates;
2131 u8 basic_rates_len;
2132 int ap_isolate;
2133 int ht_opmode;
2134 s8 p2p_ctwindow, p2p_opp_ps;
2135};
2136
2137/**
2138 * struct mesh_config - 802.11s mesh configuration
2139 *
2140 * These parameters can be changed while the mesh is active.
2141 *
2142 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
2143 * by the Mesh Peering Open message
2144 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
2145 * used by the Mesh Peering Open message
2146 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
2147 * the mesh peering management to close a mesh peering
2148 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
2149 * mesh interface
2150 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
2151 * be sent to establish a new peer link instance in a mesh
2152 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
2153 * @element_ttl: the value of TTL field set at a mesh STA for path selection
2154 * elements
2155 * @auto_open_plinks: whether we should automatically open peer links when we
2156 * detect compatible mesh peers
2157 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
2158 * synchronize to for 11s default synchronization method
2159 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
2160 * that an originator mesh STA can send to a particular path target
2161 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
2162 * @min_discovery_timeout: the minimum length of time to wait until giving up on
2163 * a path discovery in milliseconds
2164 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
2165 * receiving a PREQ shall consider the forwarding information from the
2166 * root to be valid. (TU = time unit)
2167 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
2168 * which a mesh STA can send only one action frame containing a PREQ
2169 * element
2170 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
2171 * which a mesh STA can send only one Action frame containing a PERR
2172 * element
2173 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
2174 * it takes for an HWMP information element to propagate across the mesh
2175 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
2176 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
2177 * announcements are transmitted
2178 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
2179 * station has access to a broader network beyond the MBSS. (This is
2180 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
2181 * only means that the station will announce others it's a mesh gate, but
2182 * not necessarily using the gate announcement protocol. Still keeping the
2183 * same nomenclature to be in sync with the spec)
2184 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
2185 * entity (default is TRUE - forwarding entity)
2186 * @rssi_threshold: the threshold for average signal strength of candidate
2187 * station to establish a peer link
2188 * @ht_opmode: mesh HT protection mode
2189 *
2190 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
2191 * receiving a proactive PREQ shall consider the forwarding information to
2192 * the root mesh STA to be valid.
2193 *
2194 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
2195 * PREQs are transmitted.
2196 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
2197 * during which a mesh STA can send only one Action frame containing
2198 * a PREQ element for root path confirmation.
2199 * @power_mode: The default mesh power save mode which will be the initial
2200 * setting for new peer links.
2201 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
2202 * after transmitting its beacon.
2203 * @plink_timeout: If no tx activity is seen from a STA we've established
2204 * peering with for longer than this time (in seconds), then remove it
2205 * from the STA's list of peers. Default is 30 minutes.
2206 * @dot11MeshConnectedToAuthServer: if set to true then this mesh STA
2207 * will advertise that it is connected to a authentication server
2208 * in the mesh formation field.
2209 * @dot11MeshConnectedToMeshGate: if set to true, advertise that this STA is
2210 * connected to a mesh gate in mesh formation info. If false, the
2211 * value in mesh formation is determined by the presence of root paths
2212 * in the mesh path table
2213 * @dot11MeshNolearn: Try to avoid multi-hop path discovery (e.g. PREQ/PREP
2214 * for HWMP) if the destination is a direct neighbor. Note that this might
2215 * not be the optimal decision as a multi-hop route might be better. So
2216 * if using this setting you will likely also want to disable
2217 * dot11MeshForwarding and use another mesh routing protocol on top.
2218 */
2219struct mesh_config {
2220 u16 dot11MeshRetryTimeout;
2221 u16 dot11MeshConfirmTimeout;
2222 u16 dot11MeshHoldingTimeout;
2223 u16 dot11MeshMaxPeerLinks;
2224 u8 dot11MeshMaxRetries;
2225 u8 dot11MeshTTL;
2226 u8 element_ttl;
2227 bool auto_open_plinks;
2228 u32 dot11MeshNbrOffsetMaxNeighbor;
2229 u8 dot11MeshHWMPmaxPREQretries;
2230 u32 path_refresh_time;
2231 u16 min_discovery_timeout;
2232 u32 dot11MeshHWMPactivePathTimeout;
2233 u16 dot11MeshHWMPpreqMinInterval;
2234 u16 dot11MeshHWMPperrMinInterval;
2235 u16 dot11MeshHWMPnetDiameterTraversalTime;
2236 u8 dot11MeshHWMPRootMode;
2237 bool dot11MeshConnectedToMeshGate;
2238 bool dot11MeshConnectedToAuthServer;
2239 u16 dot11MeshHWMPRannInterval;
2240 bool dot11MeshGateAnnouncementProtocol;
2241 bool dot11MeshForwarding;
2242 s32 rssi_threshold;
2243 u16 ht_opmode;
2244 u32 dot11MeshHWMPactivePathToRootTimeout;
2245 u16 dot11MeshHWMProotInterval;
2246 u16 dot11MeshHWMPconfirmationInterval;
2247 enum nl80211_mesh_power_mode power_mode;
2248 u16 dot11MeshAwakeWindowDuration;
2249 u32 plink_timeout;
2250 bool dot11MeshNolearn;
2251};
2252
2253/**
2254 * struct mesh_setup - 802.11s mesh setup configuration
2255 * @chandef: defines the channel to use
2256 * @mesh_id: the mesh ID
2257 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
2258 * @sync_method: which synchronization method to use
2259 * @path_sel_proto: which path selection protocol to use
2260 * @path_metric: which metric to use
2261 * @auth_id: which authentication method this mesh is using
2262 * @ie: vendor information elements (optional)
2263 * @ie_len: length of vendor information elements
2264 * @is_authenticated: this mesh requires authentication
2265 * @is_secure: this mesh uses security
2266 * @user_mpm: userspace handles all MPM functions
2267 * @dtim_period: DTIM period to use
2268 * @beacon_interval: beacon interval to use
2269 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
2270 * @basic_rates: basic rates to use when creating the mesh
2271 * @beacon_rate: bitrate to be used for beacons
2272 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
2273 * changes the channel when a radar is detected. This is required
2274 * to operate on DFS channels.
2275 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
2276 * port frames over NL80211 instead of the network interface.
2277 *
2278 * These parameters are fixed when the mesh is created.
2279 */
2280struct mesh_setup {
2281 struct cfg80211_chan_def chandef;
2282 const u8 *mesh_id;
2283 u8 mesh_id_len;
2284 u8 sync_method;
2285 u8 path_sel_proto;
2286 u8 path_metric;
2287 u8 auth_id;
2288 const u8 *ie;
2289 u8 ie_len;
2290 bool is_authenticated;
2291 bool is_secure;
2292 bool user_mpm;
2293 u8 dtim_period;
2294 u16 beacon_interval;
2295 int mcast_rate[NUM_NL80211_BANDS];
2296 u32 basic_rates;
2297 struct cfg80211_bitrate_mask beacon_rate;
2298 bool userspace_handles_dfs;
2299 bool control_port_over_nl80211;
2300};
2301
2302/**
2303 * struct ocb_setup - 802.11p OCB mode setup configuration
2304 * @chandef: defines the channel to use
2305 *
2306 * These parameters are fixed when connecting to the network
2307 */
2308struct ocb_setup {
2309 struct cfg80211_chan_def chandef;
2310};
2311
2312/**
2313 * struct ieee80211_txq_params - TX queue parameters
2314 * @ac: AC identifier
2315 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
2316 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
2317 * 1..32767]
2318 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
2319 * 1..32767]
2320 * @aifs: Arbitration interframe space [0..255]
2321 * @link_id: link_id or -1 for non-MLD
2322 */
2323struct ieee80211_txq_params {
2324 enum nl80211_ac ac;
2325 u16 txop;
2326 u16 cwmin;
2327 u16 cwmax;
2328 u8 aifs;
2329 int link_id;
2330};
2331
2332/**
2333 * DOC: Scanning and BSS list handling
2334 *
2335 * The scanning process itself is fairly simple, but cfg80211 offers quite
2336 * a bit of helper functionality. To start a scan, the scan operation will
2337 * be invoked with a scan definition. This scan definition contains the
2338 * channels to scan, and the SSIDs to send probe requests for (including the
2339 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
2340 * probe. Additionally, a scan request may contain extra information elements
2341 * that should be added to the probe request. The IEs are guaranteed to be
2342 * well-formed, and will not exceed the maximum length the driver advertised
2343 * in the wiphy structure.
2344 *
2345 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
2346 * it is responsible for maintaining the BSS list; the driver should not
2347 * maintain a list itself. For this notification, various functions exist.
2348 *
2349 * Since drivers do not maintain a BSS list, there are also a number of
2350 * functions to search for a BSS and obtain information about it from the
2351 * BSS structure cfg80211 maintains. The BSS list is also made available
2352 * to userspace.
2353 */
2354
2355/**
2356 * struct cfg80211_ssid - SSID description
2357 * @ssid: the SSID
2358 * @ssid_len: length of the ssid
2359 */
2360struct cfg80211_ssid {
2361 u8 ssid[IEEE80211_MAX_SSID_LEN];
2362 u8 ssid_len;
2363};
2364
2365/**
2366 * struct cfg80211_scan_info - information about completed scan
2367 * @scan_start_tsf: scan start time in terms of the TSF of the BSS that the
2368 * wireless device that requested the scan is connected to. If this
2369 * information is not available, this field is left zero.
2370 * @tsf_bssid: the BSSID according to which %scan_start_tsf is set.
2371 * @aborted: set to true if the scan was aborted for any reason,
2372 * userspace will be notified of that
2373 */
2374struct cfg80211_scan_info {
2375 u64 scan_start_tsf;
2376 u8 tsf_bssid[ETH_ALEN] __aligned(2);
2377 bool aborted;
2378};
2379
2380/**
2381 * struct cfg80211_scan_6ghz_params - relevant for 6 GHz only
2382 *
2383 * @short_ssid: short ssid to scan for
2384 * @bssid: bssid to scan for
2385 * @channel_idx: idx of the channel in the channel array in the scan request
2386 * which the above info relvant to
2387 * @unsolicited_probe: the AP transmits unsolicited probe response every 20 TU
2388 * @short_ssid_valid: @short_ssid is valid and can be used
2389 * @psc_no_listen: when set, and the channel is a PSC channel, no need to wait
2390 * 20 TUs before starting to send probe requests.
2391 */
2392struct cfg80211_scan_6ghz_params {
2393 u32 short_ssid;
2394 u32 channel_idx;
2395 u8 bssid[ETH_ALEN];
2396 bool unsolicited_probe;
2397 bool short_ssid_valid;
2398 bool psc_no_listen;
2399};
2400
2401/**
2402 * struct cfg80211_scan_request - scan request description
2403 *
2404 * @ssids: SSIDs to scan for (active scan only)
2405 * @n_ssids: number of SSIDs
2406 * @channels: channels to scan on.
2407 * @n_channels: total number of channels to scan
2408 * @scan_width: channel width for scanning
2409 * @ie: optional information element(s) to add into Probe Request or %NULL
2410 * @ie_len: length of ie in octets
2411 * @duration: how long to listen on each channel, in TUs. If
2412 * %duration_mandatory is not set, this is the maximum dwell time and
2413 * the actual dwell time may be shorter.
2414 * @duration_mandatory: if set, the scan duration must be as specified by the
2415 * %duration field.
2416 * @flags: bit field of flags controlling operation
2417 * @rates: bitmap of rates to advertise for each band
2418 * @wiphy: the wiphy this was for
2419 * @scan_start: time (in jiffies) when the scan started
2420 * @wdev: the wireless device to scan for
2421 * @info: (internal) information about completed scan
2422 * @notified: (internal) scan request was notified as done or aborted
2423 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
2424 * @mac_addr: MAC address used with randomisation
2425 * @mac_addr_mask: MAC address mask used with randomisation, bits that
2426 * are 0 in the mask should be randomised, bits that are 1 should
2427 * be taken from the @mac_addr
2428 * @scan_6ghz: relevant for split scan request only,
2429 * true if this is the second scan request
2430 * @n_6ghz_params: number of 6 GHz params
2431 * @scan_6ghz_params: 6 GHz params
2432 * @bssid: BSSID to scan for (most commonly, the wildcard BSSID)
2433 */
2434struct cfg80211_scan_request {
2435 struct cfg80211_ssid *ssids;
2436 int n_ssids;
2437 u32 n_channels;
2438 enum nl80211_bss_scan_width scan_width;
2439 const u8 *ie;
2440 size_t ie_len;
2441 u16 duration;
2442 bool duration_mandatory;
2443 u32 flags;
2444
2445 u32 rates[NUM_NL80211_BANDS];
2446
2447 struct wireless_dev *wdev;
2448
2449 u8 mac_addr[ETH_ALEN] __aligned(2);
2450 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
2451 u8 bssid[ETH_ALEN] __aligned(2);
2452
2453 /* internal */
2454 struct wiphy *wiphy;
2455 unsigned long scan_start;
2456 struct cfg80211_scan_info info;
2457 bool notified;
2458 bool no_cck;
2459 bool scan_6ghz;
2460 u32 n_6ghz_params;
2461 struct cfg80211_scan_6ghz_params *scan_6ghz_params;
2462
2463 /* keep last */
2464 struct ieee80211_channel *channels[];
2465};
2466
2467static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask)
2468{
2469 int i;
2470
2471 get_random_bytes(buf, ETH_ALEN);
2472 for (i = 0; i < ETH_ALEN; i++) {
2473 buf[i] &= ~mask[i];
2474 buf[i] |= addr[i] & mask[i];
2475 }
2476}
2477
2478/**
2479 * struct cfg80211_match_set - sets of attributes to match
2480 *
2481 * @ssid: SSID to be matched; may be zero-length in case of BSSID match
2482 * or no match (RSSI only)
2483 * @bssid: BSSID to be matched; may be all-zero BSSID in case of SSID match
2484 * or no match (RSSI only)
2485 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
2486 * @per_band_rssi_thold: Minimum rssi threshold for each band to be applied
2487 * for filtering out scan results received. Drivers advertize this support
2488 * of band specific rssi based filtering through the feature capability
2489 * %NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD. These band
2490 * specific rssi thresholds take precedence over rssi_thold, if specified.
2491 * If not specified for any band, it will be assigned with rssi_thold of
2492 * corresponding matchset.
2493 */
2494struct cfg80211_match_set {
2495 struct cfg80211_ssid ssid;
2496 u8 bssid[ETH_ALEN];
2497 s32 rssi_thold;
2498 s32 per_band_rssi_thold[NUM_NL80211_BANDS];
2499};
2500
2501/**
2502 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan
2503 *
2504 * @interval: interval between scheduled scan iterations. In seconds.
2505 * @iterations: number of scan iterations in this scan plan. Zero means
2506 * infinite loop.
2507 * The last scan plan will always have this parameter set to zero,
2508 * all other scan plans will have a finite number of iterations.
2509 */
2510struct cfg80211_sched_scan_plan {
2511 u32 interval;
2512 u32 iterations;
2513};
2514
2515/**
2516 * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment.
2517 *
2518 * @band: band of BSS which should match for RSSI level adjustment.
2519 * @delta: value of RSSI level adjustment.
2520 */
2521struct cfg80211_bss_select_adjust {
2522 enum nl80211_band band;
2523 s8 delta;
2524};
2525
2526/**
2527 * struct cfg80211_sched_scan_request - scheduled scan request description
2528 *
2529 * @reqid: identifies this request.
2530 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
2531 * @n_ssids: number of SSIDs
2532 * @n_channels: total number of channels to scan
2533 * @scan_width: channel width for scanning
2534 * @ie: optional information element(s) to add into Probe Request or %NULL
2535 * @ie_len: length of ie in octets
2536 * @flags: bit field of flags controlling operation
2537 * @match_sets: sets of parameters to be matched for a scan result
2538 * entry to be considered valid and to be passed to the host
2539 * (others are filtered out).
2540 * If ommited, all results are passed.
2541 * @n_match_sets: number of match sets
2542 * @report_results: indicates that results were reported for this request
2543 * @wiphy: the wiphy this was for
2544 * @dev: the interface
2545 * @scan_start: start time of the scheduled scan
2546 * @channels: channels to scan
2547 * @min_rssi_thold: for drivers only supporting a single threshold, this
2548 * contains the minimum over all matchsets
2549 * @mac_addr: MAC address used with randomisation
2550 * @mac_addr_mask: MAC address mask used with randomisation, bits that
2551 * are 0 in the mask should be randomised, bits that are 1 should
2552 * be taken from the @mac_addr
2553 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest
2554 * index must be executed first.
2555 * @n_scan_plans: number of scan plans, at least 1.
2556 * @rcu_head: RCU callback used to free the struct
2557 * @owner_nlportid: netlink portid of owner (if this should is a request
2558 * owned by a particular socket)
2559 * @nl_owner_dead: netlink owner socket was closed - this request be freed
2560 * @list: for keeping list of requests.
2561 * @delay: delay in seconds to use before starting the first scan
2562 * cycle. The driver may ignore this parameter and start
2563 * immediately (or at any other time), if this feature is not
2564 * supported.
2565 * @relative_rssi_set: Indicates whether @relative_rssi is set or not.
2566 * @relative_rssi: Relative RSSI threshold in dB to restrict scan result
2567 * reporting in connected state to cases where a matching BSS is determined
2568 * to have better or slightly worse RSSI than the current connected BSS.
2569 * The relative RSSI threshold values are ignored in disconnected state.
2570 * @rssi_adjust: delta dB of RSSI preference to be given to the BSSs that belong
2571 * to the specified band while deciding whether a better BSS is reported
2572 * using @relative_rssi. If delta is a negative number, the BSSs that
2573 * belong to the specified band will be penalized by delta dB in relative
2574 * comparisions.
2575 */
2576struct cfg80211_sched_scan_request {
2577 u64 reqid;
2578 struct cfg80211_ssid *ssids;
2579 int n_ssids;
2580 u32 n_channels;
2581 enum nl80211_bss_scan_width scan_width;
2582 const u8 *ie;
2583 size_t ie_len;
2584 u32 flags;
2585 struct cfg80211_match_set *match_sets;
2586 int n_match_sets;
2587 s32 min_rssi_thold;
2588 u32 delay;
2589 struct cfg80211_sched_scan_plan *scan_plans;
2590 int n_scan_plans;
2591
2592 u8 mac_addr[ETH_ALEN] __aligned(2);
2593 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
2594
2595 bool relative_rssi_set;
2596 s8 relative_rssi;
2597 struct cfg80211_bss_select_adjust rssi_adjust;
2598
2599 /* internal */
2600 struct wiphy *wiphy;
2601 struct net_device *dev;
2602 unsigned long scan_start;
2603 bool report_results;
2604 struct rcu_head rcu_head;
2605 u32 owner_nlportid;
2606 bool nl_owner_dead;
2607 struct list_head list;
2608
2609 /* keep last */
2610 struct ieee80211_channel *channels[];
2611};
2612
2613/**
2614 * enum cfg80211_signal_type - signal type
2615 *
2616 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
2617 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
2618 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
2619 */
2620enum cfg80211_signal_type {
2621 CFG80211_SIGNAL_TYPE_NONE,
2622 CFG80211_SIGNAL_TYPE_MBM,
2623 CFG80211_SIGNAL_TYPE_UNSPEC,
2624};
2625
2626/**
2627 * struct cfg80211_inform_bss - BSS inform data
2628 * @chan: channel the frame was received on
2629 * @scan_width: scan width that was used
2630 * @signal: signal strength value, according to the wiphy's
2631 * signal type
2632 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was
2633 * received; should match the time when the frame was actually
2634 * received by the device (not just by the host, in case it was
2635 * buffered on the device) and be accurate to about 10ms.
2636 * If the frame isn't buffered, just passing the return value of
2637 * ktime_get_boottime_ns() is likely appropriate.
2638 * @parent_tsf: the time at the start of reception of the first octet of the
2639 * timestamp field of the frame. The time is the TSF of the BSS specified
2640 * by %parent_bssid.
2641 * @parent_bssid: the BSS according to which %parent_tsf is set. This is set to
2642 * the BSS that requested the scan in which the beacon/probe was received.
2643 * @chains: bitmask for filled values in @chain_signal.
2644 * @chain_signal: per-chain signal strength of last received BSS in dBm.
2645 */
2646struct cfg80211_inform_bss {
2647 struct ieee80211_channel *chan;
2648 enum nl80211_bss_scan_width scan_width;
2649 s32 signal;
2650 u64 boottime_ns;
2651 u64 parent_tsf;
2652 u8 parent_bssid[ETH_ALEN] __aligned(2);
2653 u8 chains;
2654 s8 chain_signal[IEEE80211_MAX_CHAINS];
2655};
2656
2657/**
2658 * struct cfg80211_bss_ies - BSS entry IE data
2659 * @tsf: TSF contained in the frame that carried these IEs
2660 * @rcu_head: internal use, for freeing
2661 * @len: length of the IEs
2662 * @from_beacon: these IEs are known to come from a beacon
2663 * @data: IE data
2664 */
2665struct cfg80211_bss_ies {
2666 u64 tsf;
2667 struct rcu_head rcu_head;
2668 int len;
2669 bool from_beacon;
2670 u8 data[];
2671};
2672
2673/**
2674 * struct cfg80211_bss - BSS description
2675 *
2676 * This structure describes a BSS (which may also be a mesh network)
2677 * for use in scan results and similar.
2678 *
2679 * @channel: channel this BSS is on
2680 * @scan_width: width of the control channel
2681 * @bssid: BSSID of the BSS
2682 * @beacon_interval: the beacon interval as from the frame
2683 * @capability: the capability field in host byte order
2684 * @ies: the information elements (Note that there is no guarantee that these
2685 * are well-formed!); this is a pointer to either the beacon_ies or
2686 * proberesp_ies depending on whether Probe Response frame has been
2687 * received. It is always non-%NULL.
2688 * @beacon_ies: the information elements from the last Beacon frame
2689 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
2690 * own the beacon_ies, but they're just pointers to the ones from the
2691 * @hidden_beacon_bss struct)
2692 * @proberesp_ies: the information elements from the last Probe Response frame
2693 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
2694 * a BSS that hides the SSID in its beacon, this points to the BSS struct
2695 * that holds the beacon data. @beacon_ies is still valid, of course, and
2696 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
2697 * @transmitted_bss: pointer to the transmitted BSS, if this is a
2698 * non-transmitted one (multi-BSSID support)
2699 * @nontrans_list: list of non-transmitted BSS, if this is a transmitted one
2700 * (multi-BSSID support)
2701 * @signal: signal strength value (type depends on the wiphy's signal_type)
2702 * @chains: bitmask for filled values in @chain_signal.
2703 * @chain_signal: per-chain signal strength of last received BSS in dBm.
2704 * @bssid_index: index in the multiple BSS set
2705 * @max_bssid_indicator: max number of members in the BSS set
2706 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
2707 */
2708struct cfg80211_bss {
2709 struct ieee80211_channel *channel;
2710 enum nl80211_bss_scan_width scan_width;
2711
2712 const struct cfg80211_bss_ies __rcu *ies;
2713 const struct cfg80211_bss_ies __rcu *beacon_ies;
2714 const struct cfg80211_bss_ies __rcu *proberesp_ies;
2715
2716 struct cfg80211_bss *hidden_beacon_bss;
2717 struct cfg80211_bss *transmitted_bss;
2718 struct list_head nontrans_list;
2719
2720 s32 signal;
2721
2722 u16 beacon_interval;
2723 u16 capability;
2724
2725 u8 bssid[ETH_ALEN];
2726 u8 chains;
2727 s8 chain_signal[IEEE80211_MAX_CHAINS];
2728
2729 u8 bssid_index;
2730 u8 max_bssid_indicator;
2731
2732 u8 priv[] __aligned(sizeof(void *));
2733};
2734
2735/**
2736 * ieee80211_bss_get_elem - find element with given ID
2737 * @bss: the bss to search
2738 * @id: the element ID
2739 *
2740 * Note that the return value is an RCU-protected pointer, so
2741 * rcu_read_lock() must be held when calling this function.
2742 * Return: %NULL if not found.
2743 */
2744const struct element *ieee80211_bss_get_elem(struct cfg80211_bss *bss, u8 id);
2745
2746/**
2747 * ieee80211_bss_get_ie - find IE with given ID
2748 * @bss: the bss to search
2749 * @id: the element ID
2750 *
2751 * Note that the return value is an RCU-protected pointer, so
2752 * rcu_read_lock() must be held when calling this function.
2753 * Return: %NULL if not found.
2754 */
2755static inline const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 id)
2756{
2757 return (const void *)ieee80211_bss_get_elem(bss, id);
2758}
2759
2760
2761/**
2762 * struct cfg80211_auth_request - Authentication request data
2763 *
2764 * This structure provides information needed to complete IEEE 802.11
2765 * authentication.
2766 *
2767 * @bss: The BSS to authenticate with, the callee must obtain a reference
2768 * to it if it needs to keep it.
2769 * @auth_type: Authentication type (algorithm)
2770 * @ie: Extra IEs to add to Authentication frame or %NULL
2771 * @ie_len: Length of ie buffer in octets
2772 * @key_len: length of WEP key for shared key authentication
2773 * @key_idx: index of WEP key for shared key authentication
2774 * @key: WEP key for shared key authentication
2775 * @auth_data: Fields and elements in Authentication frames. This contains
2776 * the authentication frame body (non-IE and IE data), excluding the
2777 * Authentication algorithm number, i.e., starting at the Authentication
2778 * transaction sequence number field.
2779 * @auth_data_len: Length of auth_data buffer in octets
2780 * @link_id: if >= 0, indicates authentication should be done as an MLD,
2781 * the interface address is included as the MLD address and the
2782 * necessary link (with the given link_id) will be created (and
2783 * given an MLD address) by the driver
2784 * @ap_mld_addr: AP MLD address in case of authentication request with
2785 * an AP MLD, valid iff @link_id >= 0
2786 */
2787struct cfg80211_auth_request {
2788 struct cfg80211_bss *bss;
2789 const u8 *ie;
2790 size_t ie_len;
2791 enum nl80211_auth_type auth_type;
2792 const u8 *key;
2793 u8 key_len;
2794 s8 key_idx;
2795 const u8 *auth_data;
2796 size_t auth_data_len;
2797 s8 link_id;
2798 const u8 *ap_mld_addr;
2799};
2800
2801/**
2802 * struct cfg80211_assoc_link - per-link information for MLO association
2803 * @bss: the BSS pointer, see also &struct cfg80211_assoc_request::bss;
2804 * if this is %NULL for a link, that link is not requested
2805 * @elems: extra elements for the per-STA profile for this link
2806 * @elems_len: length of the elements
2807 */
2808struct cfg80211_assoc_link {
2809 struct cfg80211_bss *bss;
2810 const u8 *elems;
2811 size_t elems_len;
2812};
2813
2814/**
2815 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
2816 *
2817 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
2818 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
2819 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
2820 * @CONNECT_REQ_EXTERNAL_AUTH_SUPPORT: User space indicates external
2821 * authentication capability. Drivers can offload authentication to
2822 * userspace if this flag is set. Only applicable for cfg80211_connect()
2823 * request (connect callback).
2824 * @ASSOC_REQ_DISABLE_HE: Disable HE
2825 * @ASSOC_REQ_DISABLE_EHT: Disable EHT
2826 * @CONNECT_REQ_MLO_SUPPORT: Userspace indicates support for handling MLD links.
2827 * Drivers shall disable MLO features for the current association if this
2828 * flag is not set.
2829 */
2830enum cfg80211_assoc_req_flags {
2831 ASSOC_REQ_DISABLE_HT = BIT(0),
2832 ASSOC_REQ_DISABLE_VHT = BIT(1),
2833 ASSOC_REQ_USE_RRM = BIT(2),
2834 CONNECT_REQ_EXTERNAL_AUTH_SUPPORT = BIT(3),
2835 ASSOC_REQ_DISABLE_HE = BIT(4),
2836 ASSOC_REQ_DISABLE_EHT = BIT(5),
2837 CONNECT_REQ_MLO_SUPPORT = BIT(6),
2838};
2839
2840/**
2841 * struct cfg80211_assoc_request - (Re)Association request data
2842 *
2843 * This structure provides information needed to complete IEEE 802.11
2844 * (re)association.
2845 * @bss: The BSS to associate with. If the call is successful the driver is
2846 * given a reference that it must give back to cfg80211_send_rx_assoc()
2847 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
2848 * association requests while already associating must be rejected.
2849 * This also applies to the @links.bss parameter, which is used instead
2850 * of this one (it is %NULL) for MLO associations.
2851 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
2852 * @ie_len: Length of ie buffer in octets
2853 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
2854 * @crypto: crypto settings
2855 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
2856 * to indicate a request to reassociate within the ESS instead of a request
2857 * do the initial association with the ESS. When included, this is set to
2858 * the BSSID of the current association, i.e., to the value that is
2859 * included in the Current AP address field of the Reassociation Request
2860 * frame.
2861 * @flags: See &enum cfg80211_assoc_req_flags
2862 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2863 * will be used in ht_capa. Un-supported values will be ignored.
2864 * @ht_capa_mask: The bits of ht_capa which are to be used.
2865 * @vht_capa: VHT capability override
2866 * @vht_capa_mask: VHT capability mask indicating which fields to use
2867 * @fils_kek: FILS KEK for protecting (Re)Association Request/Response frame or
2868 * %NULL if FILS is not used.
2869 * @fils_kek_len: Length of fils_kek in octets
2870 * @fils_nonces: FILS nonces (part of AAD) for protecting (Re)Association
2871 * Request/Response frame or %NULL if FILS is not used. This field starts
2872 * with 16 octets of STA Nonce followed by 16 octets of AP Nonce.
2873 * @s1g_capa: S1G capability override
2874 * @s1g_capa_mask: S1G capability override mask
2875 * @links: per-link information for MLO connections
2876 * @link_id: >= 0 for MLO connections, where links are given, and indicates
2877 * the link on which the association request should be sent
2878 * @ap_mld_addr: AP MLD address in case of MLO association request,
2879 * valid iff @link_id >= 0
2880 */
2881struct cfg80211_assoc_request {
2882 struct cfg80211_bss *bss;
2883 const u8 *ie, *prev_bssid;
2884 size_t ie_len;
2885 struct cfg80211_crypto_settings crypto;
2886 bool use_mfp;
2887 u32 flags;
2888 struct ieee80211_ht_cap ht_capa;
2889 struct ieee80211_ht_cap ht_capa_mask;
2890 struct ieee80211_vht_cap vht_capa, vht_capa_mask;
2891 const u8 *fils_kek;
2892 size_t fils_kek_len;
2893 const u8 *fils_nonces;
2894 struct ieee80211_s1g_cap s1g_capa, s1g_capa_mask;
2895 struct cfg80211_assoc_link links[IEEE80211_MLD_MAX_NUM_LINKS];
2896 const u8 *ap_mld_addr;
2897 s8 link_id;
2898};
2899
2900/**
2901 * struct cfg80211_deauth_request - Deauthentication request data
2902 *
2903 * This structure provides information needed to complete IEEE 802.11
2904 * deauthentication.
2905 *
2906 * @bssid: the BSSID or AP MLD address to deauthenticate from
2907 * @ie: Extra IEs to add to Deauthentication frame or %NULL
2908 * @ie_len: Length of ie buffer in octets
2909 * @reason_code: The reason code for the deauthentication
2910 * @local_state_change: if set, change local state only and
2911 * do not set a deauth frame
2912 */
2913struct cfg80211_deauth_request {
2914 const u8 *bssid;
2915 const u8 *ie;
2916 size_t ie_len;
2917 u16 reason_code;
2918 bool local_state_change;
2919};
2920
2921/**
2922 * struct cfg80211_disassoc_request - Disassociation request data
2923 *
2924 * This structure provides information needed to complete IEEE 802.11
2925 * disassociation.
2926 *
2927 * @ap_addr: the BSSID or AP MLD address to disassociate from
2928 * @ie: Extra IEs to add to Disassociation frame or %NULL
2929 * @ie_len: Length of ie buffer in octets
2930 * @reason_code: The reason code for the disassociation
2931 * @local_state_change: This is a request for a local state only, i.e., no
2932 * Disassociation frame is to be transmitted.
2933 */
2934struct cfg80211_disassoc_request {
2935 const u8 *ap_addr;
2936 const u8 *ie;
2937 size_t ie_len;
2938 u16 reason_code;
2939 bool local_state_change;
2940};
2941
2942/**
2943 * struct cfg80211_ibss_params - IBSS parameters
2944 *
2945 * This structure defines the IBSS parameters for the join_ibss()
2946 * method.
2947 *
2948 * @ssid: The SSID, will always be non-null.
2949 * @ssid_len: The length of the SSID, will always be non-zero.
2950 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
2951 * search for IBSSs with a different BSSID.
2952 * @chandef: defines the channel to use if no other IBSS to join can be found
2953 * @channel_fixed: The channel should be fixed -- do not search for
2954 * IBSSs to join on other channels.
2955 * @ie: information element(s) to include in the beacon
2956 * @ie_len: length of that
2957 * @beacon_interval: beacon interval to use
2958 * @privacy: this is a protected network, keys will be configured
2959 * after joining
2960 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
2961 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
2962 * required to assume that the port is unauthorized until authorized by
2963 * user space. Otherwise, port is marked authorized by default.
2964 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
2965 * port frames over NL80211 instead of the network interface.
2966 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
2967 * changes the channel when a radar is detected. This is required
2968 * to operate on DFS channels.
2969 * @basic_rates: bitmap of basic rates to use when creating the IBSS
2970 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
2971 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2972 * will be used in ht_capa. Un-supported values will be ignored.
2973 * @ht_capa_mask: The bits of ht_capa which are to be used.
2974 * @wep_keys: static WEP keys, if not NULL points to an array of
2975 * CFG80211_MAX_WEP_KEYS WEP keys
2976 * @wep_tx_key: key index (0..3) of the default TX static WEP key
2977 */
2978struct cfg80211_ibss_params {
2979 const u8 *ssid;
2980 const u8 *bssid;
2981 struct cfg80211_chan_def chandef;
2982 const u8 *ie;
2983 u8 ssid_len, ie_len;
2984 u16 beacon_interval;
2985 u32 basic_rates;
2986 bool channel_fixed;
2987 bool privacy;
2988 bool control_port;
2989 bool control_port_over_nl80211;
2990 bool userspace_handles_dfs;
2991 int mcast_rate[NUM_NL80211_BANDS];
2992 struct ieee80211_ht_cap ht_capa;
2993 struct ieee80211_ht_cap ht_capa_mask;
2994 struct key_params *wep_keys;
2995 int wep_tx_key;
2996};
2997
2998/**
2999 * struct cfg80211_bss_selection - connection parameters for BSS selection.
3000 *
3001 * @behaviour: requested BSS selection behaviour.
3002 * @param: parameters for requestion behaviour.
3003 * @band_pref: preferred band for %NL80211_BSS_SELECT_ATTR_BAND_PREF.
3004 * @adjust: parameters for %NL80211_BSS_SELECT_ATTR_RSSI_ADJUST.
3005 */
3006struct cfg80211_bss_selection {
3007 enum nl80211_bss_select_attr behaviour;
3008 union {
3009 enum nl80211_band band_pref;
3010 struct cfg80211_bss_select_adjust adjust;
3011 } param;
3012};
3013
3014/**
3015 * struct cfg80211_connect_params - Connection parameters
3016 *
3017 * This structure provides information needed to complete IEEE 802.11
3018 * authentication and association.
3019 *
3020 * @channel: The channel to use or %NULL if not specified (auto-select based
3021 * on scan results)
3022 * @channel_hint: The channel of the recommended BSS for initial connection or
3023 * %NULL if not specified
3024 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
3025 * results)
3026 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
3027 * %NULL if not specified. Unlike the @bssid parameter, the driver is
3028 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
3029 * to use.
3030 * @ssid: SSID
3031 * @ssid_len: Length of ssid in octets
3032 * @auth_type: Authentication type (algorithm)
3033 * @ie: IEs for association request
3034 * @ie_len: Length of assoc_ie in octets
3035 * @privacy: indicates whether privacy-enabled APs should be used
3036 * @mfp: indicate whether management frame protection is used
3037 * @crypto: crypto settings
3038 * @key_len: length of WEP key for shared key authentication
3039 * @key_idx: index of WEP key for shared key authentication
3040 * @key: WEP key for shared key authentication
3041 * @flags: See &enum cfg80211_assoc_req_flags
3042 * @bg_scan_period: Background scan period in seconds
3043 * or -1 to indicate that default value is to be used.
3044 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
3045 * will be used in ht_capa. Un-supported values will be ignored.
3046 * @ht_capa_mask: The bits of ht_capa which are to be used.
3047 * @vht_capa: VHT Capability overrides
3048 * @vht_capa_mask: The bits of vht_capa which are to be used.
3049 * @pbss: if set, connect to a PCP instead of AP. Valid for DMG
3050 * networks.
3051 * @bss_select: criteria to be used for BSS selection.
3052 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
3053 * to indicate a request to reassociate within the ESS instead of a request
3054 * do the initial association with the ESS. When included, this is set to
3055 * the BSSID of the current association, i.e., to the value that is
3056 * included in the Current AP address field of the Reassociation Request
3057 * frame.
3058 * @fils_erp_username: EAP re-authentication protocol (ERP) username part of the
3059 * NAI or %NULL if not specified. This is used to construct FILS wrapped
3060 * data IE.
3061 * @fils_erp_username_len: Length of @fils_erp_username in octets.
3062 * @fils_erp_realm: EAP re-authentication protocol (ERP) realm part of NAI or
3063 * %NULL if not specified. This specifies the domain name of ER server and
3064 * is used to construct FILS wrapped data IE.
3065 * @fils_erp_realm_len: Length of @fils_erp_realm in octets.
3066 * @fils_erp_next_seq_num: The next sequence number to use in the FILS ERP
3067 * messages. This is also used to construct FILS wrapped data IE.
3068 * @fils_erp_rrk: ERP re-authentication Root Key (rRK) used to derive additional
3069 * keys in FILS or %NULL if not specified.
3070 * @fils_erp_rrk_len: Length of @fils_erp_rrk in octets.
3071 * @want_1x: indicates user-space supports and wants to use 802.1X driver
3072 * offload of 4-way handshake.
3073 * @edmg: define the EDMG channels.
3074 * This may specify multiple channels and bonding options for the driver
3075 * to choose from, based on BSS configuration.
3076 */
3077struct cfg80211_connect_params {
3078 struct ieee80211_channel *channel;
3079 struct ieee80211_channel *channel_hint;
3080 const u8 *bssid;
3081 const u8 *bssid_hint;
3082 const u8 *ssid;
3083 size_t ssid_len;
3084 enum nl80211_auth_type auth_type;
3085 const u8 *ie;
3086 size_t ie_len;
3087 bool privacy;
3088 enum nl80211_mfp mfp;
3089 struct cfg80211_crypto_settings crypto;
3090 const u8 *key;
3091 u8 key_len, key_idx;
3092 u32 flags;
3093 int bg_scan_period;
3094 struct ieee80211_ht_cap ht_capa;
3095 struct ieee80211_ht_cap ht_capa_mask;
3096 struct ieee80211_vht_cap vht_capa;
3097 struct ieee80211_vht_cap vht_capa_mask;
3098 bool pbss;
3099 struct cfg80211_bss_selection bss_select;
3100 const u8 *prev_bssid;
3101 const u8 *fils_erp_username;
3102 size_t fils_erp_username_len;
3103 const u8 *fils_erp_realm;
3104 size_t fils_erp_realm_len;
3105 u16 fils_erp_next_seq_num;
3106 const u8 *fils_erp_rrk;
3107 size_t fils_erp_rrk_len;
3108 bool want_1x;
3109 struct ieee80211_edmg edmg;
3110};
3111
3112/**
3113 * enum cfg80211_connect_params_changed - Connection parameters being updated
3114 *
3115 * This enum provides information of all connect parameters that
3116 * have to be updated as part of update_connect_params() call.
3117 *
3118 * @UPDATE_ASSOC_IES: Indicates whether association request IEs are updated
3119 * @UPDATE_FILS_ERP_INFO: Indicates that FILS connection parameters (realm,
3120 * username, erp sequence number and rrk) are updated
3121 * @UPDATE_AUTH_TYPE: Indicates that authentication type is updated
3122 */
3123enum cfg80211_connect_params_changed {
3124 UPDATE_ASSOC_IES = BIT(0),
3125 UPDATE_FILS_ERP_INFO = BIT(1),
3126 UPDATE_AUTH_TYPE = BIT(2),
3127};
3128
3129/**
3130 * enum wiphy_params_flags - set_wiphy_params bitfield values
3131 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
3132 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
3133 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
3134 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
3135 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
3136 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
3137 * @WIPHY_PARAM_TXQ_LIMIT: TXQ packet limit has been changed
3138 * @WIPHY_PARAM_TXQ_MEMORY_LIMIT: TXQ memory limit has been changed
3139 * @WIPHY_PARAM_TXQ_QUANTUM: TXQ scheduler quantum
3140 */
3141enum wiphy_params_flags {
3142 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
3143 WIPHY_PARAM_RETRY_LONG = 1 << 1,
3144 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
3145 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
3146 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
3147 WIPHY_PARAM_DYN_ACK = 1 << 5,
3148 WIPHY_PARAM_TXQ_LIMIT = 1 << 6,
3149 WIPHY_PARAM_TXQ_MEMORY_LIMIT = 1 << 7,
3150 WIPHY_PARAM_TXQ_QUANTUM = 1 << 8,
3151};
3152
3153#define IEEE80211_DEFAULT_AIRTIME_WEIGHT 256
3154
3155/* The per TXQ device queue limit in airtime */
3156#define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L 5000
3157#define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H 12000
3158
3159/* The per interface airtime threshold to switch to lower queue limit */
3160#define IEEE80211_AQL_THRESHOLD 24000
3161
3162/**
3163 * struct cfg80211_pmksa - PMK Security Association
3164 *
3165 * This structure is passed to the set/del_pmksa() method for PMKSA
3166 * caching.
3167 *
3168 * @bssid: The AP's BSSID (may be %NULL).
3169 * @pmkid: The identifier to refer a PMKSA.
3170 * @pmk: The PMK for the PMKSA identified by @pmkid. This is used for key
3171 * derivation by a FILS STA. Otherwise, %NULL.
3172 * @pmk_len: Length of the @pmk. The length of @pmk can differ depending on
3173 * the hash algorithm used to generate this.
3174 * @ssid: SSID to specify the ESS within which a PMKSA is valid when using FILS
3175 * cache identifier (may be %NULL).
3176 * @ssid_len: Length of the @ssid in octets.
3177 * @cache_id: 2-octet cache identifier advertized by a FILS AP identifying the
3178 * scope of PMKSA. This is valid only if @ssid_len is non-zero (may be
3179 * %NULL).
3180 * @pmk_lifetime: Maximum lifetime for PMKSA in seconds
3181 * (dot11RSNAConfigPMKLifetime) or 0 if not specified.
3182 * The configured PMKSA must not be used for PMKSA caching after
3183 * expiration and any keys derived from this PMK become invalid on
3184 * expiration, i.e., the current association must be dropped if the PMK
3185 * used for it expires.
3186 * @pmk_reauth_threshold: Threshold time for reauthentication (percentage of
3187 * PMK lifetime, dot11RSNAConfigPMKReauthThreshold) or 0 if not specified.
3188 * Drivers are expected to trigger a full authentication instead of using
3189 * this PMKSA for caching when reassociating to a new BSS after this
3190 * threshold to generate a new PMK before the current one expires.
3191 */
3192struct cfg80211_pmksa {
3193 const u8 *bssid;
3194 const u8 *pmkid;
3195 const u8 *pmk;
3196 size_t pmk_len;
3197 const u8 *ssid;
3198 size_t ssid_len;
3199 const u8 *cache_id;
3200 u32 pmk_lifetime;
3201 u8 pmk_reauth_threshold;
3202};
3203
3204/**
3205 * struct cfg80211_pkt_pattern - packet pattern
3206 * @mask: bitmask where to match pattern and where to ignore bytes,
3207 * one bit per byte, in same format as nl80211
3208 * @pattern: bytes to match where bitmask is 1
3209 * @pattern_len: length of pattern (in bytes)
3210 * @pkt_offset: packet offset (in bytes)
3211 *
3212 * Internal note: @mask and @pattern are allocated in one chunk of
3213 * memory, free @mask only!
3214 */
3215struct cfg80211_pkt_pattern {
3216 const u8 *mask, *pattern;
3217 int pattern_len;
3218 int pkt_offset;
3219};
3220
3221/**
3222 * struct cfg80211_wowlan_tcp - TCP connection parameters
3223 *
3224 * @sock: (internal) socket for source port allocation
3225 * @src: source IP address
3226 * @dst: destination IP address
3227 * @dst_mac: destination MAC address
3228 * @src_port: source port
3229 * @dst_port: destination port
3230 * @payload_len: data payload length
3231 * @payload: data payload buffer
3232 * @payload_seq: payload sequence stamping configuration
3233 * @data_interval: interval at which to send data packets
3234 * @wake_len: wakeup payload match length
3235 * @wake_data: wakeup payload match data
3236 * @wake_mask: wakeup payload match mask
3237 * @tokens_size: length of the tokens buffer
3238 * @payload_tok: payload token usage configuration
3239 */
3240struct cfg80211_wowlan_tcp {
3241 struct socket *sock;
3242 __be32 src, dst;
3243 u16 src_port, dst_port;
3244 u8 dst_mac[ETH_ALEN];
3245 int payload_len;
3246 const u8 *payload;
3247 struct nl80211_wowlan_tcp_data_seq payload_seq;
3248 u32 data_interval;
3249 u32 wake_len;
3250 const u8 *wake_data, *wake_mask;
3251 u32 tokens_size;
3252 /* must be last, variable member */
3253 struct nl80211_wowlan_tcp_data_token payload_tok;
3254};
3255
3256/**
3257 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
3258 *
3259 * This structure defines the enabled WoWLAN triggers for the device.
3260 * @any: wake up on any activity -- special trigger if device continues
3261 * operating as normal during suspend
3262 * @disconnect: wake up if getting disconnected
3263 * @magic_pkt: wake up on receiving magic packet
3264 * @patterns: wake up on receiving packet matching a pattern
3265 * @n_patterns: number of patterns
3266 * @gtk_rekey_failure: wake up on GTK rekey failure
3267 * @eap_identity_req: wake up on EAP identity request packet
3268 * @four_way_handshake: wake up on 4-way handshake
3269 * @rfkill_release: wake up when rfkill is released
3270 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
3271 * NULL if not configured.
3272 * @nd_config: configuration for the scan to be used for net detect wake.
3273 */
3274struct cfg80211_wowlan {
3275 bool any, disconnect, magic_pkt, gtk_rekey_failure,
3276 eap_identity_req, four_way_handshake,
3277 rfkill_release;
3278 struct cfg80211_pkt_pattern *patterns;
3279 struct cfg80211_wowlan_tcp *tcp;
3280 int n_patterns;
3281 struct cfg80211_sched_scan_request *nd_config;
3282};
3283
3284/**
3285 * struct cfg80211_coalesce_rules - Coalesce rule parameters
3286 *
3287 * This structure defines coalesce rule for the device.
3288 * @delay: maximum coalescing delay in msecs.
3289 * @condition: condition for packet coalescence.
3290 * see &enum nl80211_coalesce_condition.
3291 * @patterns: array of packet patterns
3292 * @n_patterns: number of patterns
3293 */
3294struct cfg80211_coalesce_rules {
3295 int delay;
3296 enum nl80211_coalesce_condition condition;
3297 struct cfg80211_pkt_pattern *patterns;
3298 int n_patterns;
3299};
3300
3301/**
3302 * struct cfg80211_coalesce - Packet coalescing settings
3303 *
3304 * This structure defines coalescing settings.
3305 * @rules: array of coalesce rules
3306 * @n_rules: number of rules
3307 */
3308struct cfg80211_coalesce {
3309 struct cfg80211_coalesce_rules *rules;
3310 int n_rules;
3311};
3312
3313/**
3314 * struct cfg80211_wowlan_nd_match - information about the match
3315 *
3316 * @ssid: SSID of the match that triggered the wake up
3317 * @n_channels: Number of channels where the match occurred. This
3318 * value may be zero if the driver can't report the channels.
3319 * @channels: center frequencies of the channels where a match
3320 * occurred (in MHz)
3321 */
3322struct cfg80211_wowlan_nd_match {
3323 struct cfg80211_ssid ssid;
3324 int n_channels;
3325 u32 channels[];
3326};
3327
3328/**
3329 * struct cfg80211_wowlan_nd_info - net detect wake up information
3330 *
3331 * @n_matches: Number of match information instances provided in
3332 * @matches. This value may be zero if the driver can't provide
3333 * match information.
3334 * @matches: Array of pointers to matches containing information about
3335 * the matches that triggered the wake up.
3336 */
3337struct cfg80211_wowlan_nd_info {
3338 int n_matches;
3339 struct cfg80211_wowlan_nd_match *matches[];
3340};
3341
3342/**
3343 * struct cfg80211_wowlan_wakeup - wakeup report
3344 * @disconnect: woke up by getting disconnected
3345 * @magic_pkt: woke up by receiving magic packet
3346 * @gtk_rekey_failure: woke up by GTK rekey failure
3347 * @eap_identity_req: woke up by EAP identity request packet
3348 * @four_way_handshake: woke up by 4-way handshake
3349 * @rfkill_release: woke up by rfkill being released
3350 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
3351 * @packet_present_len: copied wakeup packet data
3352 * @packet_len: original wakeup packet length
3353 * @packet: The packet causing the wakeup, if any.
3354 * @packet_80211: For pattern match, magic packet and other data
3355 * frame triggers an 802.3 frame should be reported, for
3356 * disconnect due to deauth 802.11 frame. This indicates which
3357 * it is.
3358 * @tcp_match: TCP wakeup packet received
3359 * @tcp_connlost: TCP connection lost or failed to establish
3360 * @tcp_nomoretokens: TCP data ran out of tokens
3361 * @net_detect: if not %NULL, woke up because of net detect
3362 */
3363struct cfg80211_wowlan_wakeup {
3364 bool disconnect, magic_pkt, gtk_rekey_failure,
3365 eap_identity_req, four_way_handshake,
3366 rfkill_release, packet_80211,
3367 tcp_match, tcp_connlost, tcp_nomoretokens;
3368 s32 pattern_idx;
3369 u32 packet_present_len, packet_len;
3370 const void *packet;
3371 struct cfg80211_wowlan_nd_info *net_detect;
3372};
3373
3374/**
3375 * struct cfg80211_gtk_rekey_data - rekey data
3376 * @kek: key encryption key (@kek_len bytes)
3377 * @kck: key confirmation key (@kck_len bytes)
3378 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
3379 * @kek_len: length of kek
3380 * @kck_len: length of kck
3381 * @akm: akm (oui, id)
3382 */
3383struct cfg80211_gtk_rekey_data {
3384 const u8 *kek, *kck, *replay_ctr;
3385 u32 akm;
3386 u8 kek_len, kck_len;
3387};
3388
3389/**
3390 * struct cfg80211_update_ft_ies_params - FT IE Information
3391 *
3392 * This structure provides information needed to update the fast transition IE
3393 *
3394 * @md: The Mobility Domain ID, 2 Octet value
3395 * @ie: Fast Transition IEs
3396 * @ie_len: Length of ft_ie in octets
3397 */
3398struct cfg80211_update_ft_ies_params {
3399 u16 md;
3400 const u8 *ie;
3401 size_t ie_len;
3402};
3403
3404/**
3405 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
3406 *
3407 * This structure provides information needed to transmit a mgmt frame
3408 *
3409 * @chan: channel to use
3410 * @offchan: indicates wether off channel operation is required
3411 * @wait: duration for ROC
3412 * @buf: buffer to transmit
3413 * @len: buffer length
3414 * @no_cck: don't use cck rates for this frame
3415 * @dont_wait_for_ack: tells the low level not to wait for an ack
3416 * @n_csa_offsets: length of csa_offsets array
3417 * @csa_offsets: array of all the csa offsets in the frame
3418 * @link_id: for MLO, the link ID to transmit on, -1 if not given; note
3419 * that the link ID isn't validated (much), it's in range but the
3420 * link might not exist (or be used by the receiver STA)
3421 */
3422struct cfg80211_mgmt_tx_params {
3423 struct ieee80211_channel *chan;
3424 bool offchan;
3425 unsigned int wait;
3426 const u8 *buf;
3427 size_t len;
3428 bool no_cck;
3429 bool dont_wait_for_ack;
3430 int n_csa_offsets;
3431 const u16 *csa_offsets;
3432 int link_id;
3433};
3434
3435/**
3436 * struct cfg80211_dscp_exception - DSCP exception
3437 *
3438 * @dscp: DSCP value that does not adhere to the user priority range definition
3439 * @up: user priority value to which the corresponding DSCP value belongs
3440 */
3441struct cfg80211_dscp_exception {
3442 u8 dscp;
3443 u8 up;
3444};
3445
3446/**
3447 * struct cfg80211_dscp_range - DSCP range definition for user priority
3448 *
3449 * @low: lowest DSCP value of this user priority range, inclusive
3450 * @high: highest DSCP value of this user priority range, inclusive
3451 */
3452struct cfg80211_dscp_range {
3453 u8 low;
3454 u8 high;
3455};
3456
3457/* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
3458#define IEEE80211_QOS_MAP_MAX_EX 21
3459#define IEEE80211_QOS_MAP_LEN_MIN 16
3460#define IEEE80211_QOS_MAP_LEN_MAX \
3461 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
3462
3463/**
3464 * struct cfg80211_qos_map - QoS Map Information
3465 *
3466 * This struct defines the Interworking QoS map setting for DSCP values
3467 *
3468 * @num_des: number of DSCP exceptions (0..21)
3469 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
3470 * the user priority DSCP range definition
3471 * @up: DSCP range definition for a particular user priority
3472 */
3473struct cfg80211_qos_map {
3474 u8 num_des;
3475 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX];
3476 struct cfg80211_dscp_range up[8];
3477};
3478
3479/**
3480 * struct cfg80211_nan_conf - NAN configuration
3481 *
3482 * This struct defines NAN configuration parameters
3483 *
3484 * @master_pref: master preference (1 - 255)
3485 * @bands: operating bands, a bitmap of &enum nl80211_band values.
3486 * For instance, for NL80211_BAND_2GHZ, bit 0 would be set
3487 * (i.e. BIT(NL80211_BAND_2GHZ)).
3488 */
3489struct cfg80211_nan_conf {
3490 u8 master_pref;
3491 u8 bands;
3492};
3493
3494/**
3495 * enum cfg80211_nan_conf_changes - indicates changed fields in NAN
3496 * configuration
3497 *
3498 * @CFG80211_NAN_CONF_CHANGED_PREF: master preference
3499 * @CFG80211_NAN_CONF_CHANGED_BANDS: operating bands
3500 */
3501enum cfg80211_nan_conf_changes {
3502 CFG80211_NAN_CONF_CHANGED_PREF = BIT(0),
3503 CFG80211_NAN_CONF_CHANGED_BANDS = BIT(1),
3504};
3505
3506/**
3507 * struct cfg80211_nan_func_filter - a NAN function Rx / Tx filter
3508 *
3509 * @filter: the content of the filter
3510 * @len: the length of the filter
3511 */
3512struct cfg80211_nan_func_filter {
3513 const u8 *filter;
3514 u8 len;
3515};
3516
3517/**
3518 * struct cfg80211_nan_func - a NAN function
3519 *
3520 * @type: &enum nl80211_nan_function_type
3521 * @service_id: the service ID of the function
3522 * @publish_type: &nl80211_nan_publish_type
3523 * @close_range: if true, the range should be limited. Threshold is
3524 * implementation specific.
3525 * @publish_bcast: if true, the solicited publish should be broadcasted
3526 * @subscribe_active: if true, the subscribe is active
3527 * @followup_id: the instance ID for follow up
3528 * @followup_reqid: the requestor instance ID for follow up
3529 * @followup_dest: MAC address of the recipient of the follow up
3530 * @ttl: time to live counter in DW.
3531 * @serv_spec_info: Service Specific Info
3532 * @serv_spec_info_len: Service Specific Info length
3533 * @srf_include: if true, SRF is inclusive
3534 * @srf_bf: Bloom Filter
3535 * @srf_bf_len: Bloom Filter length
3536 * @srf_bf_idx: Bloom Filter index
3537 * @srf_macs: SRF MAC addresses
3538 * @srf_num_macs: number of MAC addresses in SRF
3539 * @rx_filters: rx filters that are matched with corresponding peer's tx_filter
3540 * @tx_filters: filters that should be transmitted in the SDF.
3541 * @num_rx_filters: length of &rx_filters.
3542 * @num_tx_filters: length of &tx_filters.
3543 * @instance_id: driver allocated id of the function.
3544 * @cookie: unique NAN function identifier.
3545 */
3546struct cfg80211_nan_func {
3547 enum nl80211_nan_function_type type;
3548 u8 service_id[NL80211_NAN_FUNC_SERVICE_ID_LEN];
3549 u8 publish_type;
3550 bool close_range;
3551 bool publish_bcast;
3552 bool subscribe_active;
3553 u8 followup_id;
3554 u8 followup_reqid;
3555 struct mac_address followup_dest;
3556 u32 ttl;
3557 const u8 *serv_spec_info;
3558 u8 serv_spec_info_len;
3559 bool srf_include;
3560 const u8 *srf_bf;
3561 u8 srf_bf_len;
3562 u8 srf_bf_idx;
3563 struct mac_address *srf_macs;
3564 int srf_num_macs;
3565 struct cfg80211_nan_func_filter *rx_filters;
3566 struct cfg80211_nan_func_filter *tx_filters;
3567 u8 num_tx_filters;
3568 u8 num_rx_filters;
3569 u8 instance_id;
3570 u64 cookie;
3571};
3572
3573/**
3574 * struct cfg80211_pmk_conf - PMK configuration
3575 *
3576 * @aa: authenticator address
3577 * @pmk_len: PMK length in bytes.
3578 * @pmk: the PMK material
3579 * @pmk_r0_name: PMK-R0 Name. NULL if not applicable (i.e., the PMK
3580 * is not PMK-R0). When pmk_r0_name is not NULL, the pmk field
3581 * holds PMK-R0.
3582 */
3583struct cfg80211_pmk_conf {
3584 const u8 *aa;
3585 u8 pmk_len;
3586 const u8 *pmk;
3587 const u8 *pmk_r0_name;
3588};
3589
3590/**
3591 * struct cfg80211_external_auth_params - Trigger External authentication.
3592 *
3593 * Commonly used across the external auth request and event interfaces.
3594 *
3595 * @action: action type / trigger for external authentication. Only significant
3596 * for the authentication request event interface (driver to user space).
3597 * @bssid: BSSID of the peer with which the authentication has
3598 * to happen. Used by both the authentication request event and
3599 * authentication response command interface.
3600 * @ssid: SSID of the AP. Used by both the authentication request event and
3601 * authentication response command interface.
3602 * @key_mgmt_suite: AKM suite of the respective authentication. Used by the
3603 * authentication request event interface.
3604 * @status: status code, %WLAN_STATUS_SUCCESS for successful authentication,
3605 * use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space cannot give you
3606 * the real status code for failures. Used only for the authentication
3607 * response command interface (user space to driver).
3608 * @pmkid: The identifier to refer a PMKSA.
3609 */
3610struct cfg80211_external_auth_params {
3611 enum nl80211_external_auth_action action;
3612 u8 bssid[ETH_ALEN] __aligned(2);
3613 struct cfg80211_ssid ssid;
3614 unsigned int key_mgmt_suite;
3615 u16 status;
3616 const u8 *pmkid;
3617};
3618
3619/**
3620 * struct cfg80211_ftm_responder_stats - FTM responder statistics
3621 *
3622 * @filled: bitflag of flags using the bits of &enum nl80211_ftm_stats to
3623 * indicate the relevant values in this struct for them
3624 * @success_num: number of FTM sessions in which all frames were successfully
3625 * answered
3626 * @partial_num: number of FTM sessions in which part of frames were
3627 * successfully answered
3628 * @failed_num: number of failed FTM sessions
3629 * @asap_num: number of ASAP FTM sessions
3630 * @non_asap_num: number of non-ASAP FTM sessions
3631 * @total_duration_ms: total sessions durations - gives an indication
3632 * of how much time the responder was busy
3633 * @unknown_triggers_num: number of unknown FTM triggers - triggers from
3634 * initiators that didn't finish successfully the negotiation phase with
3635 * the responder
3636 * @reschedule_requests_num: number of FTM reschedule requests - initiator asks
3637 * for a new scheduling although it already has scheduled FTM slot
3638 * @out_of_window_triggers_num: total FTM triggers out of scheduled window
3639 */
3640struct cfg80211_ftm_responder_stats {
3641 u32 filled;
3642 u32 success_num;
3643 u32 partial_num;
3644 u32 failed_num;
3645 u32 asap_num;
3646 u32 non_asap_num;
3647 u64 total_duration_ms;
3648 u32 unknown_triggers_num;
3649 u32 reschedule_requests_num;
3650 u32 out_of_window_triggers_num;
3651};
3652
3653/**
3654 * struct cfg80211_pmsr_ftm_result - FTM result
3655 * @failure_reason: if this measurement failed (PMSR status is
3656 * %NL80211_PMSR_STATUS_FAILURE), this gives a more precise
3657 * reason than just "failure"
3658 * @burst_index: if reporting partial results, this is the index
3659 * in [0 .. num_bursts-1] of the burst that's being reported
3660 * @num_ftmr_attempts: number of FTM request frames transmitted
3661 * @num_ftmr_successes: number of FTM request frames acked
3662 * @busy_retry_time: if failure_reason is %NL80211_PMSR_FTM_FAILURE_PEER_BUSY,
3663 * fill this to indicate in how many seconds a retry is deemed possible
3664 * by the responder
3665 * @num_bursts_exp: actual number of bursts exponent negotiated
3666 * @burst_duration: actual burst duration negotiated
3667 * @ftms_per_burst: actual FTMs per burst negotiated
3668 * @lci_len: length of LCI information (if present)
3669 * @civicloc_len: length of civic location information (if present)
3670 * @lci: LCI data (may be %NULL)
3671 * @civicloc: civic location data (may be %NULL)
3672 * @rssi_avg: average RSSI over FTM action frames reported
3673 * @rssi_spread: spread of the RSSI over FTM action frames reported
3674 * @tx_rate: bitrate for transmitted FTM action frame response
3675 * @rx_rate: bitrate of received FTM action frame
3676 * @rtt_avg: average of RTTs measured (must have either this or @dist_avg)
3677 * @rtt_variance: variance of RTTs measured (note that standard deviation is
3678 * the square root of the variance)
3679 * @rtt_spread: spread of the RTTs measured
3680 * @dist_avg: average of distances (mm) measured
3681 * (must have either this or @rtt_avg)
3682 * @dist_variance: variance of distances measured (see also @rtt_variance)
3683 * @dist_spread: spread of distances measured (see also @rtt_spread)
3684 * @num_ftmr_attempts_valid: @num_ftmr_attempts is valid
3685 * @num_ftmr_successes_valid: @num_ftmr_successes is valid
3686 * @rssi_avg_valid: @rssi_avg is valid
3687 * @rssi_spread_valid: @rssi_spread is valid
3688 * @tx_rate_valid: @tx_rate is valid
3689 * @rx_rate_valid: @rx_rate is valid
3690 * @rtt_avg_valid: @rtt_avg is valid
3691 * @rtt_variance_valid: @rtt_variance is valid
3692 * @rtt_spread_valid: @rtt_spread is valid
3693 * @dist_avg_valid: @dist_avg is valid
3694 * @dist_variance_valid: @dist_variance is valid
3695 * @dist_spread_valid: @dist_spread is valid
3696 */
3697struct cfg80211_pmsr_ftm_result {
3698 const u8 *lci;
3699 const u8 *civicloc;
3700 unsigned int lci_len;
3701 unsigned int civicloc_len;
3702 enum nl80211_peer_measurement_ftm_failure_reasons failure_reason;
3703 u32 num_ftmr_attempts, num_ftmr_successes;
3704 s16 burst_index;
3705 u8 busy_retry_time;
3706 u8 num_bursts_exp;
3707 u8 burst_duration;
3708 u8 ftms_per_burst;
3709 s32 rssi_avg;
3710 s32 rssi_spread;
3711 struct rate_info tx_rate, rx_rate;
3712 s64 rtt_avg;
3713 s64 rtt_variance;
3714 s64 rtt_spread;
3715 s64 dist_avg;
3716 s64 dist_variance;
3717 s64 dist_spread;
3718
3719 u16 num_ftmr_attempts_valid:1,
3720 num_ftmr_successes_valid:1,
3721 rssi_avg_valid:1,
3722 rssi_spread_valid:1,
3723 tx_rate_valid:1,
3724 rx_rate_valid:1,
3725 rtt_avg_valid:1,
3726 rtt_variance_valid:1,
3727 rtt_spread_valid:1,
3728 dist_avg_valid:1,
3729 dist_variance_valid:1,
3730 dist_spread_valid:1;
3731};
3732
3733/**
3734 * struct cfg80211_pmsr_result - peer measurement result
3735 * @addr: address of the peer
3736 * @host_time: host time (use ktime_get_boottime() adjust to the time when the
3737 * measurement was made)
3738 * @ap_tsf: AP's TSF at measurement time
3739 * @status: status of the measurement
3740 * @final: if reporting partial results, mark this as the last one; if not
3741 * reporting partial results always set this flag
3742 * @ap_tsf_valid: indicates the @ap_tsf value is valid
3743 * @type: type of the measurement reported, note that we only support reporting
3744 * one type at a time, but you can report multiple results separately and
3745 * they're all aggregated for userspace.
3746 * @ftm: FTM result
3747 */
3748struct cfg80211_pmsr_result {
3749 u64 host_time, ap_tsf;
3750 enum nl80211_peer_measurement_status status;
3751
3752 u8 addr[ETH_ALEN];
3753
3754 u8 final:1,
3755 ap_tsf_valid:1;
3756
3757 enum nl80211_peer_measurement_type type;
3758
3759 union {
3760 struct cfg80211_pmsr_ftm_result ftm;
3761 };
3762};
3763
3764/**
3765 * struct cfg80211_pmsr_ftm_request_peer - FTM request data
3766 * @requested: indicates FTM is requested
3767 * @preamble: frame preamble to use
3768 * @burst_period: burst period to use
3769 * @asap: indicates to use ASAP mode
3770 * @num_bursts_exp: number of bursts exponent
3771 * @burst_duration: burst duration
3772 * @ftms_per_burst: number of FTMs per burst
3773 * @ftmr_retries: number of retries for FTM request
3774 * @request_lci: request LCI information
3775 * @request_civicloc: request civic location information
3776 * @trigger_based: use trigger based ranging for the measurement
3777 * If neither @trigger_based nor @non_trigger_based is set,
3778 * EDCA based ranging will be used.
3779 * @non_trigger_based: use non trigger based ranging for the measurement
3780 * If neither @trigger_based nor @non_trigger_based is set,
3781 * EDCA based ranging will be used.
3782 * @lmr_feedback: negotiate for I2R LMR feedback. Only valid if either
3783 * @trigger_based or @non_trigger_based is set.
3784 * @bss_color: the bss color of the responder. Optional. Set to zero to
3785 * indicate the driver should set the BSS color. Only valid if
3786 * @non_trigger_based or @trigger_based is set.
3787 *
3788 * See also nl80211 for the respective attribute documentation.
3789 */
3790struct cfg80211_pmsr_ftm_request_peer {
3791 enum nl80211_preamble preamble;
3792 u16 burst_period;
3793 u8 requested:1,
3794 asap:1,
3795 request_lci:1,
3796 request_civicloc:1,
3797 trigger_based:1,
3798 non_trigger_based:1,
3799 lmr_feedback:1;
3800 u8 num_bursts_exp;
3801 u8 burst_duration;
3802 u8 ftms_per_burst;
3803 u8 ftmr_retries;
3804 u8 bss_color;
3805};
3806
3807/**
3808 * struct cfg80211_pmsr_request_peer - peer data for a peer measurement request
3809 * @addr: MAC address
3810 * @chandef: channel to use
3811 * @report_ap_tsf: report the associated AP's TSF
3812 * @ftm: FTM data, see &struct cfg80211_pmsr_ftm_request_peer
3813 */
3814struct cfg80211_pmsr_request_peer {
3815 u8 addr[ETH_ALEN];
3816 struct cfg80211_chan_def chandef;
3817 u8 report_ap_tsf:1;
3818 struct cfg80211_pmsr_ftm_request_peer ftm;
3819};
3820
3821/**
3822 * struct cfg80211_pmsr_request - peer measurement request
3823 * @cookie: cookie, set by cfg80211
3824 * @nl_portid: netlink portid - used by cfg80211
3825 * @drv_data: driver data for this request, if required for aborting,
3826 * not otherwise freed or anything by cfg80211
3827 * @mac_addr: MAC address used for (randomised) request
3828 * @mac_addr_mask: MAC address mask used for randomisation, bits that
3829 * are 0 in the mask should be randomised, bits that are 1 should
3830 * be taken from the @mac_addr
3831 * @list: used by cfg80211 to hold on to the request
3832 * @timeout: timeout (in milliseconds) for the whole operation, if
3833 * zero it means there's no timeout
3834 * @n_peers: number of peers to do measurements with
3835 * @peers: per-peer measurement request data
3836 */
3837struct cfg80211_pmsr_request {
3838 u64 cookie;
3839 void *drv_data;
3840 u32 n_peers;
3841 u32 nl_portid;
3842
3843 u32 timeout;
3844
3845 u8 mac_addr[ETH_ALEN] __aligned(2);
3846 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
3847
3848 struct list_head list;
3849
3850 struct cfg80211_pmsr_request_peer peers[];
3851};
3852
3853/**
3854 * struct cfg80211_update_owe_info - OWE Information
3855 *
3856 * This structure provides information needed for the drivers to offload OWE
3857 * (Opportunistic Wireless Encryption) processing to the user space.
3858 *
3859 * Commonly used across update_owe_info request and event interfaces.
3860 *
3861 * @peer: MAC address of the peer device for which the OWE processing
3862 * has to be done.
3863 * @status: status code, %WLAN_STATUS_SUCCESS for successful OWE info
3864 * processing, use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space
3865 * cannot give you the real status code for failures. Used only for
3866 * OWE update request command interface (user space to driver).
3867 * @ie: IEs obtained from the peer or constructed by the user space. These are
3868 * the IEs of the remote peer in the event from the host driver and
3869 * the constructed IEs by the user space in the request interface.
3870 * @ie_len: Length of IEs in octets.
3871 */
3872struct cfg80211_update_owe_info {
3873 u8 peer[ETH_ALEN] __aligned(2);
3874 u16 status;
3875 const u8 *ie;
3876 size_t ie_len;
3877};
3878
3879/**
3880 * struct mgmt_frame_regs - management frame registrations data
3881 * @global_stypes: bitmap of management frame subtypes registered
3882 * for the entire device
3883 * @interface_stypes: bitmap of management frame subtypes registered
3884 * for the given interface
3885 * @global_mcast_stypes: mcast RX is needed globally for these subtypes
3886 * @interface_mcast_stypes: mcast RX is needed on this interface
3887 * for these subtypes
3888 */
3889struct mgmt_frame_regs {
3890 u32 global_stypes, interface_stypes;
3891 u32 global_mcast_stypes, interface_mcast_stypes;
3892};
3893
3894/**
3895 * struct cfg80211_ops - backend description for wireless configuration
3896 *
3897 * This struct is registered by fullmac card drivers and/or wireless stacks
3898 * in order to handle configuration requests on their interfaces.
3899 *
3900 * All callbacks except where otherwise noted should return 0
3901 * on success or a negative error code.
3902 *
3903 * All operations are invoked with the wiphy mutex held. The RTNL may be
3904 * held in addition (due to wireless extensions) but this cannot be relied
3905 * upon except in cases where documented below. Note that due to ordering,
3906 * the RTNL also cannot be acquired in any handlers.
3907 *
3908 * @suspend: wiphy device needs to be suspended. The variable @wow will
3909 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
3910 * configured for the device.
3911 * @resume: wiphy device needs to be resumed
3912 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
3913 * to call device_set_wakeup_enable() to enable/disable wakeup from
3914 * the device.
3915 *
3916 * @add_virtual_intf: create a new virtual interface with the given name,
3917 * must set the struct wireless_dev's iftype. Beware: You must create
3918 * the new netdev in the wiphy's network namespace! Returns the struct
3919 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
3920 * also set the address member in the wdev.
3921 * This additionally holds the RTNL to be able to do netdev changes.
3922 *
3923 * @del_virtual_intf: remove the virtual interface
3924 * This additionally holds the RTNL to be able to do netdev changes.
3925 *
3926 * @change_virtual_intf: change type/configuration of virtual interface,
3927 * keep the struct wireless_dev's iftype updated.
3928 * This additionally holds the RTNL to be able to do netdev changes.
3929 *
3930 * @add_intf_link: Add a new MLO link to the given interface. Note that
3931 * the wdev->link[] data structure has been updated, so the new link
3932 * address is available.
3933 * @del_intf_link: Remove an MLO link from the given interface.
3934 *
3935 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
3936 * when adding a group key. @link_id will be -1 for non-MLO connection.
3937 * For MLO connection, @link_id will be >= 0 for group key and -1 for
3938 * pairwise key, @mac_addr will be peer's MLD address for MLO pairwise key.
3939 *
3940 * @get_key: get information about the key with the given parameters.
3941 * @mac_addr will be %NULL when requesting information for a group
3942 * key. All pointers given to the @callback function need not be valid
3943 * after it returns. This function should return an error if it is
3944 * not possible to retrieve the key, -ENOENT if it doesn't exist.
3945 * @link_id will be -1 for non-MLO connection. For MLO connection,
3946 * @link_id will be >= 0 for group key and -1 for pairwise key, @mac_addr
3947 * will be peer's MLD address for MLO pairwise key.
3948 *
3949 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
3950 * and @key_index, return -ENOENT if the key doesn't exist. @link_id will
3951 * be -1 for non-MLO connection. For MLO connection, @link_id will be >= 0
3952 * for group key and -1 for pairwise key, @mac_addr will be peer's MLD
3953 * address for MLO pairwise key.
3954 *
3955 * @set_default_key: set the default key on an interface. @link_id will be >= 0
3956 * for MLO connection and -1 for non-MLO connection.
3957 *
3958 * @set_default_mgmt_key: set the default management frame key on an interface.
3959 * @link_id will be >= 0 for MLO connection and -1 for non-MLO connection.
3960 *
3961 * @set_default_beacon_key: set the default Beacon frame key on an interface.
3962 * @link_id will be >= 0 for MLO connection and -1 for non-MLO connection.
3963 *
3964 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
3965 *
3966 * @start_ap: Start acting in AP mode defined by the parameters.
3967 * @change_beacon: Change the beacon parameters for an access point mode
3968 * interface. This should reject the call when AP mode wasn't started.
3969 * @stop_ap: Stop being an AP, including stopping beaconing.
3970 *
3971 * @add_station: Add a new station.
3972 * @del_station: Remove a station
3973 * @change_station: Modify a given station. Note that flags changes are not much
3974 * validated in cfg80211, in particular the auth/assoc/authorized flags
3975 * might come to the driver in invalid combinations -- make sure to check
3976 * them, also against the existing state! Drivers must call
3977 * cfg80211_check_station_change() to validate the information.
3978 * @get_station: get station information for the station identified by @mac
3979 * @dump_station: dump station callback -- resume dump at index @idx
3980 *
3981 * @add_mpath: add a fixed mesh path
3982 * @del_mpath: delete a given mesh path
3983 * @change_mpath: change a given mesh path
3984 * @get_mpath: get a mesh path for the given parameters
3985 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
3986 * @get_mpp: get a mesh proxy path for the given parameters
3987 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
3988 * @join_mesh: join the mesh network with the specified parameters
3989 * (invoked with the wireless_dev mutex held)
3990 * @leave_mesh: leave the current mesh network
3991 * (invoked with the wireless_dev mutex held)
3992 *
3993 * @get_mesh_config: Get the current mesh configuration
3994 *
3995 * @update_mesh_config: Update mesh parameters on a running mesh.
3996 * The mask is a bitfield which tells us which parameters to
3997 * set, and which to leave alone.
3998 *
3999 * @change_bss: Modify parameters for a given BSS.
4000 *
4001 * @set_txq_params: Set TX queue parameters
4002 *
4003 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
4004 * as it doesn't implement join_mesh and needs to set the channel to
4005 * join the mesh instead.
4006 *
4007 * @set_monitor_channel: Set the monitor mode channel for the device. If other
4008 * interfaces are active this callback should reject the configuration.
4009 * If no interfaces are active or the device is down, the channel should
4010 * be stored for when a monitor interface becomes active.
4011 *
4012 * @scan: Request to do a scan. If returning zero, the scan request is given
4013 * the driver, and will be valid until passed to cfg80211_scan_done().
4014 * For scan results, call cfg80211_inform_bss(); you can call this outside
4015 * the scan/scan_done bracket too.
4016 * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall
4017 * indicate the status of the scan through cfg80211_scan_done().
4018 *
4019 * @auth: Request to authenticate with the specified peer
4020 * (invoked with the wireless_dev mutex held)
4021 * @assoc: Request to (re)associate with the specified peer
4022 * (invoked with the wireless_dev mutex held)
4023 * @deauth: Request to deauthenticate from the specified peer
4024 * (invoked with the wireless_dev mutex held)
4025 * @disassoc: Request to disassociate from the specified peer
4026 * (invoked with the wireless_dev mutex held)
4027 *
4028 * @connect: Connect to the ESS with the specified parameters. When connected,
4029 * call cfg80211_connect_result()/cfg80211_connect_bss() with status code
4030 * %WLAN_STATUS_SUCCESS. If the connection fails for some reason, call
4031 * cfg80211_connect_result()/cfg80211_connect_bss() with the status code
4032 * from the AP or cfg80211_connect_timeout() if no frame with status code
4033 * was received.
4034 * The driver is allowed to roam to other BSSes within the ESS when the
4035 * other BSS matches the connect parameters. When such roaming is initiated
4036 * by the driver, the driver is expected to verify that the target matches
4037 * the configured security parameters and to use Reassociation Request
4038 * frame instead of Association Request frame.
4039 * The connect function can also be used to request the driver to perform a
4040 * specific roam when connected to an ESS. In that case, the prev_bssid
4041 * parameter is set to the BSSID of the currently associated BSS as an
4042 * indication of requesting reassociation.
4043 * In both the driver-initiated and new connect() call initiated roaming
4044 * cases, the result of roaming is indicated with a call to
4045 * cfg80211_roamed(). (invoked with the wireless_dev mutex held)
4046 * @update_connect_params: Update the connect parameters while connected to a
4047 * BSS. The updated parameters can be used by driver/firmware for
4048 * subsequent BSS selection (roaming) decisions and to form the
4049 * Authentication/(Re)Association Request frames. This call does not
4050 * request an immediate disassociation or reassociation with the current
4051 * BSS, i.e., this impacts only subsequent (re)associations. The bits in
4052 * changed are defined in &enum cfg80211_connect_params_changed.
4053 * (invoked with the wireless_dev mutex held)
4054 * @disconnect: Disconnect from the BSS/ESS or stop connection attempts if
4055 * connection is in progress. Once done, call cfg80211_disconnected() in
4056 * case connection was already established (invoked with the
4057 * wireless_dev mutex held), otherwise call cfg80211_connect_timeout().
4058 *
4059 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
4060 * cfg80211_ibss_joined(), also call that function when changing BSSID due
4061 * to a merge.
4062 * (invoked with the wireless_dev mutex held)
4063 * @leave_ibss: Leave the IBSS.
4064 * (invoked with the wireless_dev mutex held)
4065 *
4066 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
4067 * MESH mode)
4068 *
4069 * @set_wiphy_params: Notify that wiphy parameters have changed;
4070 * @changed bitfield (see &enum wiphy_params_flags) describes which values
4071 * have changed. The actual parameter values are available in
4072 * struct wiphy. If returning an error, no value should be changed.
4073 *
4074 * @set_tx_power: set the transmit power according to the parameters,
4075 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
4076 * wdev may be %NULL if power was set for the wiphy, and will
4077 * always be %NULL unless the driver supports per-vif TX power
4078 * (as advertised by the nl80211 feature flag.)
4079 * @get_tx_power: store the current TX power into the dbm variable;
4080 * return 0 if successful
4081 *
4082 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
4083 * functions to adjust rfkill hw state
4084 *
4085 * @dump_survey: get site survey information.
4086 *
4087 * @remain_on_channel: Request the driver to remain awake on the specified
4088 * channel for the specified duration to complete an off-channel
4089 * operation (e.g., public action frame exchange). When the driver is
4090 * ready on the requested channel, it must indicate this with an event
4091 * notification by calling cfg80211_ready_on_channel().
4092 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
4093 * This allows the operation to be terminated prior to timeout based on
4094 * the duration value.
4095 * @mgmt_tx: Transmit a management frame.
4096 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
4097 * frame on another channel
4098 *
4099 * @testmode_cmd: run a test mode command; @wdev may be %NULL
4100 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
4101 * used by the function, but 0 and 1 must not be touched. Additionally,
4102 * return error codes other than -ENOBUFS and -ENOENT will terminate the
4103 * dump and return to userspace with an error, so be careful. If any data
4104 * was passed in from userspace then the data/len arguments will be present
4105 * and point to the data contained in %NL80211_ATTR_TESTDATA.
4106 *
4107 * @set_bitrate_mask: set the bitrate mask configuration
4108 *
4109 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
4110 * devices running firmwares capable of generating the (re) association
4111 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
4112 * @del_pmksa: Delete a cached PMKID.
4113 * @flush_pmksa: Flush all cached PMKIDs.
4114 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
4115 * allows the driver to adjust the dynamic ps timeout value.
4116 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
4117 * After configuration, the driver should (soon) send an event indicating
4118 * the current level is above/below the configured threshold; this may
4119 * need some care when the configuration is changed (without first being
4120 * disabled.)
4121 * @set_cqm_rssi_range_config: Configure two RSSI thresholds in the
4122 * connection quality monitor. An event is to be sent only when the
4123 * signal level is found to be outside the two values. The driver should
4124 * set %NL80211_EXT_FEATURE_CQM_RSSI_LIST if this method is implemented.
4125 * If it is provided then there's no point providing @set_cqm_rssi_config.
4126 * @set_cqm_txe_config: Configure connection quality monitor TX error
4127 * thresholds.
4128 * @sched_scan_start: Tell the driver to start a scheduled scan.
4129 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan with
4130 * given request id. This call must stop the scheduled scan and be ready
4131 * for starting a new one before it returns, i.e. @sched_scan_start may be
4132 * called immediately after that again and should not fail in that case.
4133 * The driver should not call cfg80211_sched_scan_stopped() for a requested
4134 * stop (when this method returns 0).
4135 *
4136 * @update_mgmt_frame_registrations: Notify the driver that management frame
4137 * registrations were updated. The callback is allowed to sleep.
4138 *
4139 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
4140 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
4141 * reject TX/RX mask combinations they cannot support by returning -EINVAL
4142 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
4143 *
4144 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
4145 *
4146 * @tdls_mgmt: Transmit a TDLS management frame.
4147 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
4148 *
4149 * @probe_client: probe an associated client, must return a cookie that it
4150 * later passes to cfg80211_probe_status().
4151 *
4152 * @set_noack_map: Set the NoAck Map for the TIDs.
4153 *
4154 * @get_channel: Get the current operating channel for the virtual interface.
4155 * For monitor interfaces, it should return %NULL unless there's a single
4156 * current monitoring channel.
4157 *
4158 * @start_p2p_device: Start the given P2P device.
4159 * @stop_p2p_device: Stop the given P2P device.
4160 *
4161 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
4162 * Parameters include ACL policy, an array of MAC address of stations
4163 * and the number of MAC addresses. If there is already a list in driver
4164 * this new list replaces the existing one. Driver has to clear its ACL
4165 * when number of MAC addresses entries is passed as 0. Drivers which
4166 * advertise the support for MAC based ACL have to implement this callback.
4167 *
4168 * @start_radar_detection: Start radar detection in the driver.
4169 *
4170 * @end_cac: End running CAC, probably because a related CAC
4171 * was finished on another phy.
4172 *
4173 * @update_ft_ies: Provide updated Fast BSS Transition information to the
4174 * driver. If the SME is in the driver/firmware, this information can be
4175 * used in building Authentication and Reassociation Request frames.
4176 *
4177 * @crit_proto_start: Indicates a critical protocol needs more link reliability
4178 * for a given duration (milliseconds). The protocol is provided so the
4179 * driver can take the most appropriate actions.
4180 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
4181 * reliability. This operation can not fail.
4182 * @set_coalesce: Set coalesce parameters.
4183 *
4184 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
4185 * responsible for veryfing if the switch is possible. Since this is
4186 * inherently tricky driver may decide to disconnect an interface later
4187 * with cfg80211_stop_iface(). This doesn't mean driver can accept
4188 * everything. It should do it's best to verify requests and reject them
4189 * as soon as possible.
4190 *
4191 * @set_qos_map: Set QoS mapping information to the driver
4192 *
4193 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
4194 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
4195 * changes during the lifetime of the BSS.
4196 *
4197 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
4198 * with the given parameters; action frame exchange has been handled by
4199 * userspace so this just has to modify the TX path to take the TS into
4200 * account.
4201 * If the admitted time is 0 just validate the parameters to make sure
4202 * the session can be created at all; it is valid to just always return
4203 * success for that but that may result in inefficient behaviour (handshake
4204 * with the peer followed by immediate teardown when the addition is later
4205 * rejected)
4206 * @del_tx_ts: remove an existing TX TS
4207 *
4208 * @join_ocb: join the OCB network with the specified parameters
4209 * (invoked with the wireless_dev mutex held)
4210 * @leave_ocb: leave the current OCB network
4211 * (invoked with the wireless_dev mutex held)
4212 *
4213 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
4214 * is responsible for continually initiating channel-switching operations
4215 * and returning to the base channel for communication with the AP.
4216 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
4217 * peers must be on the base channel when the call completes.
4218 * @start_nan: Start the NAN interface.
4219 * @stop_nan: Stop the NAN interface.
4220 * @add_nan_func: Add a NAN function. Returns negative value on failure.
4221 * On success @nan_func ownership is transferred to the driver and
4222 * it may access it outside of the scope of this function. The driver
4223 * should free the @nan_func when no longer needed by calling
4224 * cfg80211_free_nan_func().
4225 * On success the driver should assign an instance_id in the
4226 * provided @nan_func.
4227 * @del_nan_func: Delete a NAN function.
4228 * @nan_change_conf: changes NAN configuration. The changed parameters must
4229 * be specified in @changes (using &enum cfg80211_nan_conf_changes);
4230 * All other parameters must be ignored.
4231 *
4232 * @set_multicast_to_unicast: configure multicast to unicast conversion for BSS
4233 *
4234 * @get_txq_stats: Get TXQ stats for interface or phy. If wdev is %NULL, this
4235 * function should return phy stats, and interface stats otherwise.
4236 *
4237 * @set_pmk: configure the PMK to be used for offloaded 802.1X 4-Way handshake.
4238 * If not deleted through @del_pmk the PMK remains valid until disconnect
4239 * upon which the driver should clear it.
4240 * (invoked with the wireless_dev mutex held)
4241 * @del_pmk: delete the previously configured PMK for the given authenticator.
4242 * (invoked with the wireless_dev mutex held)
4243 *
4244 * @external_auth: indicates result of offloaded authentication processing from
4245 * user space
4246 *
4247 * @tx_control_port: TX a control port frame (EAPoL). The noencrypt parameter
4248 * tells the driver that the frame should not be encrypted.
4249 *
4250 * @get_ftm_responder_stats: Retrieve FTM responder statistics, if available.
4251 * Statistics should be cumulative, currently no way to reset is provided.
4252 * @start_pmsr: start peer measurement (e.g. FTM)
4253 * @abort_pmsr: abort peer measurement
4254 *
4255 * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME
4256 * but offloading OWE processing to the user space will get the updated
4257 * DH IE through this interface.
4258 *
4259 * @probe_mesh_link: Probe direct Mesh peer's link quality by sending data frame
4260 * and overrule HWMP path selection algorithm.
4261 * @set_tid_config: TID specific configuration, this can be peer or BSS specific
4262 * This callback may sleep.
4263 * @reset_tid_config: Reset TID specific configuration for the peer, for the
4264 * given TIDs. This callback may sleep.
4265 *
4266 * @set_sar_specs: Update the SAR (TX power) settings.
4267 *
4268 * @color_change: Initiate a color change.
4269 *
4270 * @set_fils_aad: Set FILS AAD data to the AP driver so that the driver can use
4271 * those to decrypt (Re)Association Request and encrypt (Re)Association
4272 * Response frame.
4273 *
4274 * @set_radar_background: Configure dedicated offchannel chain available for
4275 * radar/CAC detection on some hw. This chain can't be used to transmit
4276 * or receive frames and it is bounded to a running wdev.
4277 * Background radar/CAC detection allows to avoid the CAC downtime
4278 * switching to a different channel during CAC detection on the selected
4279 * radar channel.
4280 * The caller is expected to set chandef pointer to NULL in order to
4281 * disable background CAC/radar detection.
4282 * @add_link_station: Add a link to a station.
4283 * @mod_link_station: Modify a link of a station.
4284 * @del_link_station: Remove a link of a station.
4285 */
4286struct cfg80211_ops {
4287 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
4288 int (*resume)(struct wiphy *wiphy);
4289 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
4290
4291 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
4292 const char *name,
4293 unsigned char name_assign_type,
4294 enum nl80211_iftype type,
4295 struct vif_params *params);
4296 int (*del_virtual_intf)(struct wiphy *wiphy,
4297 struct wireless_dev *wdev);
4298 int (*change_virtual_intf)(struct wiphy *wiphy,
4299 struct net_device *dev,
4300 enum nl80211_iftype type,
4301 struct vif_params *params);
4302
4303 int (*add_intf_link)(struct wiphy *wiphy,
4304 struct wireless_dev *wdev,
4305 unsigned int link_id);
4306 void (*del_intf_link)(struct wiphy *wiphy,
4307 struct wireless_dev *wdev,
4308 unsigned int link_id);
4309
4310 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
4311 int link_id, u8 key_index, bool pairwise,
4312 const u8 *mac_addr, struct key_params *params);
4313 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
4314 int link_id, u8 key_index, bool pairwise,
4315 const u8 *mac_addr, void *cookie,
4316 void (*callback)(void *cookie, struct key_params*));
4317 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
4318 int link_id, u8 key_index, bool pairwise,
4319 const u8 *mac_addr);
4320 int (*set_default_key)(struct wiphy *wiphy,
4321 struct net_device *netdev, int link_id,
4322 u8 key_index, bool unicast, bool multicast);
4323 int (*set_default_mgmt_key)(struct wiphy *wiphy,
4324 struct net_device *netdev, int link_id,
4325 u8 key_index);
4326 int (*set_default_beacon_key)(struct wiphy *wiphy,
4327 struct net_device *netdev,
4328 int link_id,
4329 u8 key_index);
4330
4331 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
4332 struct cfg80211_ap_settings *settings);
4333 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
4334 struct cfg80211_beacon_data *info);
4335 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev,
4336 unsigned int link_id);
4337
4338
4339 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
4340 const u8 *mac,
4341 struct station_parameters *params);
4342 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
4343 struct station_del_parameters *params);
4344 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
4345 const u8 *mac,
4346 struct station_parameters *params);
4347 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
4348 const u8 *mac, struct station_info *sinfo);
4349 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
4350 int idx, u8 *mac, struct station_info *sinfo);
4351
4352 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
4353 const u8 *dst, const u8 *next_hop);
4354 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
4355 const u8 *dst);
4356 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
4357 const u8 *dst, const u8 *next_hop);
4358 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
4359 u8 *dst, u8 *next_hop, struct mpath_info *pinfo);
4360 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
4361 int idx, u8 *dst, u8 *next_hop,
4362 struct mpath_info *pinfo);
4363 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev,
4364 u8 *dst, u8 *mpp, struct mpath_info *pinfo);
4365 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev,
4366 int idx, u8 *dst, u8 *mpp,
4367 struct mpath_info *pinfo);
4368 int (*get_mesh_config)(struct wiphy *wiphy,
4369 struct net_device *dev,
4370 struct mesh_config *conf);
4371 int (*update_mesh_config)(struct wiphy *wiphy,
4372 struct net_device *dev, u32 mask,
4373 const struct mesh_config *nconf);
4374 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
4375 const struct mesh_config *conf,
4376 const struct mesh_setup *setup);
4377 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
4378
4379 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev,
4380 struct ocb_setup *setup);
4381 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev);
4382
4383 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
4384 struct bss_parameters *params);
4385
4386 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
4387 struct ieee80211_txq_params *params);
4388
4389 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
4390 struct net_device *dev,
4391 struct ieee80211_channel *chan);
4392
4393 int (*set_monitor_channel)(struct wiphy *wiphy,
4394 struct cfg80211_chan_def *chandef);
4395
4396 int (*scan)(struct wiphy *wiphy,
4397 struct cfg80211_scan_request *request);
4398 void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev);
4399
4400 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
4401 struct cfg80211_auth_request *req);
4402 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
4403 struct cfg80211_assoc_request *req);
4404 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
4405 struct cfg80211_deauth_request *req);
4406 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
4407 struct cfg80211_disassoc_request *req);
4408
4409 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
4410 struct cfg80211_connect_params *sme);
4411 int (*update_connect_params)(struct wiphy *wiphy,
4412 struct net_device *dev,
4413 struct cfg80211_connect_params *sme,
4414 u32 changed);
4415 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
4416 u16 reason_code);
4417
4418 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
4419 struct cfg80211_ibss_params *params);
4420 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
4421
4422 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
4423 int rate[NUM_NL80211_BANDS]);
4424
4425 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
4426
4427 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
4428 enum nl80211_tx_power_setting type, int mbm);
4429 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
4430 int *dbm);
4431
4432 void (*rfkill_poll)(struct wiphy *wiphy);
4433
4434#ifdef CONFIG_NL80211_TESTMODE
4435 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev,
4436 void *data, int len);
4437 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
4438 struct netlink_callback *cb,
4439 void *data, int len);
4440#endif
4441
4442 int (*set_bitrate_mask)(struct wiphy *wiphy,
4443 struct net_device *dev,
4444 unsigned int link_id,
4445 const u8 *peer,
4446 const struct cfg80211_bitrate_mask *mask);
4447
4448 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
4449 int idx, struct survey_info *info);
4450
4451 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
4452 struct cfg80211_pmksa *pmksa);
4453 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
4454 struct cfg80211_pmksa *pmksa);
4455 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
4456
4457 int (*remain_on_channel)(struct wiphy *wiphy,
4458 struct wireless_dev *wdev,
4459 struct ieee80211_channel *chan,
4460 unsigned int duration,
4461 u64 *cookie);
4462 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
4463 struct wireless_dev *wdev,
4464 u64 cookie);
4465
4466 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
4467 struct cfg80211_mgmt_tx_params *params,
4468 u64 *cookie);
4469 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
4470 struct wireless_dev *wdev,
4471 u64 cookie);
4472
4473 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
4474 bool enabled, int timeout);
4475
4476 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
4477 struct net_device *dev,
4478 s32 rssi_thold, u32 rssi_hyst);
4479
4480 int (*set_cqm_rssi_range_config)(struct wiphy *wiphy,
4481 struct net_device *dev,
4482 s32 rssi_low, s32 rssi_high);
4483
4484 int (*set_cqm_txe_config)(struct wiphy *wiphy,
4485 struct net_device *dev,
4486 u32 rate, u32 pkts, u32 intvl);
4487
4488 void (*update_mgmt_frame_registrations)(struct wiphy *wiphy,
4489 struct wireless_dev *wdev,
4490 struct mgmt_frame_regs *upd);
4491
4492 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
4493 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
4494
4495 int (*sched_scan_start)(struct wiphy *wiphy,
4496 struct net_device *dev,
4497 struct cfg80211_sched_scan_request *request);
4498 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev,
4499 u64 reqid);
4500
4501 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
4502 struct cfg80211_gtk_rekey_data *data);
4503
4504 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
4505 const u8 *peer, u8 action_code, u8 dialog_token,
4506 u16 status_code, u32 peer_capability,
4507 bool initiator, const u8 *buf, size_t len);
4508 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
4509 const u8 *peer, enum nl80211_tdls_operation oper);
4510
4511 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
4512 const u8 *peer, u64 *cookie);
4513
4514 int (*set_noack_map)(struct wiphy *wiphy,
4515 struct net_device *dev,
4516 u16 noack_map);
4517
4518 int (*get_channel)(struct wiphy *wiphy,
4519 struct wireless_dev *wdev,
4520 unsigned int link_id,
4521 struct cfg80211_chan_def *chandef);
4522
4523 int (*start_p2p_device)(struct wiphy *wiphy,
4524 struct wireless_dev *wdev);
4525 void (*stop_p2p_device)(struct wiphy *wiphy,
4526 struct wireless_dev *wdev);
4527
4528 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
4529 const struct cfg80211_acl_data *params);
4530
4531 int (*start_radar_detection)(struct wiphy *wiphy,
4532 struct net_device *dev,
4533 struct cfg80211_chan_def *chandef,
4534 u32 cac_time_ms);
4535 void (*end_cac)(struct wiphy *wiphy,
4536 struct net_device *dev);
4537 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
4538 struct cfg80211_update_ft_ies_params *ftie);
4539 int (*crit_proto_start)(struct wiphy *wiphy,
4540 struct wireless_dev *wdev,
4541 enum nl80211_crit_proto_id protocol,
4542 u16 duration);
4543 void (*crit_proto_stop)(struct wiphy *wiphy,
4544 struct wireless_dev *wdev);
4545 int (*set_coalesce)(struct wiphy *wiphy,
4546 struct cfg80211_coalesce *coalesce);
4547
4548 int (*channel_switch)(struct wiphy *wiphy,
4549 struct net_device *dev,
4550 struct cfg80211_csa_settings *params);
4551
4552 int (*set_qos_map)(struct wiphy *wiphy,
4553 struct net_device *dev,
4554 struct cfg80211_qos_map *qos_map);
4555
4556 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
4557 unsigned int link_id,
4558 struct cfg80211_chan_def *chandef);
4559
4560 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
4561 u8 tsid, const u8 *peer, u8 user_prio,
4562 u16 admitted_time);
4563 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
4564 u8 tsid, const u8 *peer);
4565
4566 int (*tdls_channel_switch)(struct wiphy *wiphy,
4567 struct net_device *dev,
4568 const u8 *addr, u8 oper_class,
4569 struct cfg80211_chan_def *chandef);
4570 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy,
4571 struct net_device *dev,
4572 const u8 *addr);
4573 int (*start_nan)(struct wiphy *wiphy, struct wireless_dev *wdev,
4574 struct cfg80211_nan_conf *conf);
4575 void (*stop_nan)(struct wiphy *wiphy, struct wireless_dev *wdev);
4576 int (*add_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
4577 struct cfg80211_nan_func *nan_func);
4578 void (*del_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
4579 u64 cookie);
4580 int (*nan_change_conf)(struct wiphy *wiphy,
4581 struct wireless_dev *wdev,
4582 struct cfg80211_nan_conf *conf,
4583 u32 changes);
4584
4585 int (*set_multicast_to_unicast)(struct wiphy *wiphy,
4586 struct net_device *dev,
4587 const bool enabled);
4588
4589 int (*get_txq_stats)(struct wiphy *wiphy,
4590 struct wireless_dev *wdev,
4591 struct cfg80211_txq_stats *txqstats);
4592
4593 int (*set_pmk)(struct wiphy *wiphy, struct net_device *dev,
4594 const struct cfg80211_pmk_conf *conf);
4595 int (*del_pmk)(struct wiphy *wiphy, struct net_device *dev,
4596 const u8 *aa);
4597 int (*external_auth)(struct wiphy *wiphy, struct net_device *dev,
4598 struct cfg80211_external_auth_params *params);
4599
4600 int (*tx_control_port)(struct wiphy *wiphy,
4601 struct net_device *dev,
4602 const u8 *buf, size_t len,
4603 const u8 *dest, const __be16 proto,
4604 const bool noencrypt, int link_id,
4605 u64 *cookie);
4606
4607 int (*get_ftm_responder_stats)(struct wiphy *wiphy,
4608 struct net_device *dev,
4609 struct cfg80211_ftm_responder_stats *ftm_stats);
4610
4611 int (*start_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev,
4612 struct cfg80211_pmsr_request *request);
4613 void (*abort_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev,
4614 struct cfg80211_pmsr_request *request);
4615 int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev,
4616 struct cfg80211_update_owe_info *owe_info);
4617 int (*probe_mesh_link)(struct wiphy *wiphy, struct net_device *dev,
4618 const u8 *buf, size_t len);
4619 int (*set_tid_config)(struct wiphy *wiphy, struct net_device *dev,
4620 struct cfg80211_tid_config *tid_conf);
4621 int (*reset_tid_config)(struct wiphy *wiphy, struct net_device *dev,
4622 const u8 *peer, u8 tids);
4623 int (*set_sar_specs)(struct wiphy *wiphy,
4624 struct cfg80211_sar_specs *sar);
4625 int (*color_change)(struct wiphy *wiphy,
4626 struct net_device *dev,
4627 struct cfg80211_color_change_settings *params);
4628 int (*set_fils_aad)(struct wiphy *wiphy, struct net_device *dev,
4629 struct cfg80211_fils_aad *fils_aad);
4630 int (*set_radar_background)(struct wiphy *wiphy,
4631 struct cfg80211_chan_def *chandef);
4632 int (*add_link_station)(struct wiphy *wiphy, struct net_device *dev,
4633 struct link_station_parameters *params);
4634 int (*mod_link_station)(struct wiphy *wiphy, struct net_device *dev,
4635 struct link_station_parameters *params);
4636 int (*del_link_station)(struct wiphy *wiphy, struct net_device *dev,
4637 struct link_station_del_parameters *params);
4638};
4639
4640/*
4641 * wireless hardware and networking interfaces structures
4642 * and registration/helper functions
4643 */
4644
4645/**
4646 * enum wiphy_flags - wiphy capability flags
4647 *
4648 * @WIPHY_FLAG_SPLIT_SCAN_6GHZ: if set to true, the scan request will be split
4649 * into two, first for legacy bands and second for UHB.
4650 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
4651 * wiphy at all
4652 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
4653 * by default -- this flag will be set depending on the kernel's default
4654 * on wiphy_new(), but can be changed by the driver if it has a good
4655 * reason to override the default
4656 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
4657 * on a VLAN interface). This flag also serves an extra purpose of
4658 * supporting 4ADDR AP mode on devices which do not support AP/VLAN iftype.
4659 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
4660 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
4661 * control port protocol ethertype. The device also honours the
4662 * control_port_no_encrypt flag.
4663 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
4664 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
4665 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
4666 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
4667 * firmware.
4668 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
4669 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
4670 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
4671 * link setup/discovery operations internally. Setup, discovery and
4672 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
4673 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
4674 * used for asking the driver/firmware to perform a TDLS operation.
4675 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
4676 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
4677 * when there are virtual interfaces in AP mode by calling
4678 * cfg80211_report_obss_beacon().
4679 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
4680 * responds to probe-requests in hardware.
4681 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
4682 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
4683 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
4684 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
4685 * beaconing mode (AP, IBSS, Mesh, ...).
4686 * @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
4687 * before connection.
4688 * @WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK: The device supports bigger kek and kck keys
4689 * @WIPHY_FLAG_SUPPORTS_MLO: This is a temporary flag gating the MLO APIs,
4690 * in order to not have them reachable in normal drivers, until we have
4691 * complete feature/interface combinations/etc. advertisement. No driver
4692 * should set this flag for now.
4693 */
4694enum wiphy_flags {
4695 WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK = BIT(0),
4696 WIPHY_FLAG_SUPPORTS_MLO = BIT(1),
4697 WIPHY_FLAG_SPLIT_SCAN_6GHZ = BIT(2),
4698 WIPHY_FLAG_NETNS_OK = BIT(3),
4699 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
4700 WIPHY_FLAG_4ADDR_AP = BIT(5),
4701 WIPHY_FLAG_4ADDR_STATION = BIT(6),
4702 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
4703 WIPHY_FLAG_IBSS_RSN = BIT(8),
4704 WIPHY_FLAG_MESH_AUTH = BIT(10),
4705 /* use hole at 11 */
4706 /* use hole at 12 */
4707 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
4708 WIPHY_FLAG_AP_UAPSD = BIT(14),
4709 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
4710 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
4711 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
4712 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
4713 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
4714 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
4715 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
4716 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
4717 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
4718 WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
4719};
4720
4721/**
4722 * struct ieee80211_iface_limit - limit on certain interface types
4723 * @max: maximum number of interfaces of these types
4724 * @types: interface types (bits)
4725 */
4726struct ieee80211_iface_limit {
4727 u16 max;
4728 u16 types;
4729};
4730
4731/**
4732 * struct ieee80211_iface_combination - possible interface combination
4733 *
4734 * With this structure the driver can describe which interface
4735 * combinations it supports concurrently.
4736 *
4737 * Examples:
4738 *
4739 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
4740 *
4741 * .. code-block:: c
4742 *
4743 * struct ieee80211_iface_limit limits1[] = {
4744 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
4745 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP), },
4746 * };
4747 * struct ieee80211_iface_combination combination1 = {
4748 * .limits = limits1,
4749 * .n_limits = ARRAY_SIZE(limits1),
4750 * .max_interfaces = 2,
4751 * .beacon_int_infra_match = true,
4752 * };
4753 *
4754 *
4755 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
4756 *
4757 * .. code-block:: c
4758 *
4759 * struct ieee80211_iface_limit limits2[] = {
4760 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
4761 * BIT(NL80211_IFTYPE_P2P_GO), },
4762 * };
4763 * struct ieee80211_iface_combination combination2 = {
4764 * .limits = limits2,
4765 * .n_limits = ARRAY_SIZE(limits2),
4766 * .max_interfaces = 8,
4767 * .num_different_channels = 1,
4768 * };
4769 *
4770 *
4771 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
4772 *
4773 * This allows for an infrastructure connection and three P2P connections.
4774 *
4775 * .. code-block:: c
4776 *
4777 * struct ieee80211_iface_limit limits3[] = {
4778 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
4779 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
4780 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
4781 * };
4782 * struct ieee80211_iface_combination combination3 = {
4783 * .limits = limits3,
4784 * .n_limits = ARRAY_SIZE(limits3),
4785 * .max_interfaces = 4,
4786 * .num_different_channels = 2,
4787 * };
4788 *
4789 */
4790struct ieee80211_iface_combination {
4791 /**
4792 * @limits:
4793 * limits for the given interface types
4794 */
4795 const struct ieee80211_iface_limit *limits;
4796
4797 /**
4798 * @num_different_channels:
4799 * can use up to this many different channels
4800 */
4801 u32 num_different_channels;
4802
4803 /**
4804 * @max_interfaces:
4805 * maximum number of interfaces in total allowed in this group
4806 */
4807 u16 max_interfaces;
4808
4809 /**
4810 * @n_limits:
4811 * number of limitations
4812 */
4813 u8 n_limits;
4814
4815 /**
4816 * @beacon_int_infra_match:
4817 * In this combination, the beacon intervals between infrastructure
4818 * and AP types must match. This is required only in special cases.
4819 */
4820 bool beacon_int_infra_match;
4821
4822 /**
4823 * @radar_detect_widths:
4824 * bitmap of channel widths supported for radar detection
4825 */
4826 u8 radar_detect_widths;
4827
4828 /**
4829 * @radar_detect_regions:
4830 * bitmap of regions supported for radar detection
4831 */
4832 u8 radar_detect_regions;
4833
4834 /**
4835 * @beacon_int_min_gcd:
4836 * This interface combination supports different beacon intervals.
4837 *
4838 * = 0
4839 * all beacon intervals for different interface must be same.
4840 * > 0
4841 * any beacon interval for the interface part of this combination AND
4842 * GCD of all beacon intervals from beaconing interfaces of this
4843 * combination must be greater or equal to this value.
4844 */
4845 u32 beacon_int_min_gcd;
4846};
4847
4848struct ieee80211_txrx_stypes {
4849 u16 tx, rx;
4850};
4851
4852/**
4853 * enum wiphy_wowlan_support_flags - WoWLAN support flags
4854 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
4855 * trigger that keeps the device operating as-is and
4856 * wakes up the host on any activity, for example a
4857 * received packet that passed filtering; note that the
4858 * packet should be preserved in that case
4859 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
4860 * (see nl80211.h)
4861 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
4862 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
4863 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
4864 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
4865 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
4866 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
4867 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
4868 */
4869enum wiphy_wowlan_support_flags {
4870 WIPHY_WOWLAN_ANY = BIT(0),
4871 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
4872 WIPHY_WOWLAN_DISCONNECT = BIT(2),
4873 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
4874 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
4875 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
4876 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
4877 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
4878 WIPHY_WOWLAN_NET_DETECT = BIT(8),
4879};
4880
4881struct wiphy_wowlan_tcp_support {
4882 const struct nl80211_wowlan_tcp_data_token_feature *tok;
4883 u32 data_payload_max;
4884 u32 data_interval_max;
4885 u32 wake_payload_max;
4886 bool seq;
4887};
4888
4889/**
4890 * struct wiphy_wowlan_support - WoWLAN support data
4891 * @flags: see &enum wiphy_wowlan_support_flags
4892 * @n_patterns: number of supported wakeup patterns
4893 * (see nl80211.h for the pattern definition)
4894 * @pattern_max_len: maximum length of each pattern
4895 * @pattern_min_len: minimum length of each pattern
4896 * @max_pkt_offset: maximum Rx packet offset
4897 * @max_nd_match_sets: maximum number of matchsets for net-detect,
4898 * similar, but not necessarily identical, to max_match_sets for
4899 * scheduled scans.
4900 * See &struct cfg80211_sched_scan_request.@match_sets for more
4901 * details.
4902 * @tcp: TCP wakeup support information
4903 */
4904struct wiphy_wowlan_support {
4905 u32 flags;
4906 int n_patterns;
4907 int pattern_max_len;
4908 int pattern_min_len;
4909 int max_pkt_offset;
4910 int max_nd_match_sets;
4911 const struct wiphy_wowlan_tcp_support *tcp;
4912};
4913
4914/**
4915 * struct wiphy_coalesce_support - coalesce support data
4916 * @n_rules: maximum number of coalesce rules
4917 * @max_delay: maximum supported coalescing delay in msecs
4918 * @n_patterns: number of supported patterns in a rule
4919 * (see nl80211.h for the pattern definition)
4920 * @pattern_max_len: maximum length of each pattern
4921 * @pattern_min_len: minimum length of each pattern
4922 * @max_pkt_offset: maximum Rx packet offset
4923 */
4924struct wiphy_coalesce_support {
4925 int n_rules;
4926 int max_delay;
4927 int n_patterns;
4928 int pattern_max_len;
4929 int pattern_min_len;
4930 int max_pkt_offset;
4931};
4932
4933/**
4934 * enum wiphy_vendor_command_flags - validation flags for vendor commands
4935 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
4936 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
4937 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
4938 * (must be combined with %_WDEV or %_NETDEV)
4939 */
4940enum wiphy_vendor_command_flags {
4941 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0),
4942 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1),
4943 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2),
4944};
4945
4946/**
4947 * enum wiphy_opmode_flag - Station's ht/vht operation mode information flags
4948 *
4949 * @STA_OPMODE_MAX_BW_CHANGED: Max Bandwidth changed
4950 * @STA_OPMODE_SMPS_MODE_CHANGED: SMPS mode changed
4951 * @STA_OPMODE_N_SS_CHANGED: max N_SS (number of spatial streams) changed
4952 *
4953 */
4954enum wiphy_opmode_flag {
4955 STA_OPMODE_MAX_BW_CHANGED = BIT(0),
4956 STA_OPMODE_SMPS_MODE_CHANGED = BIT(1),
4957 STA_OPMODE_N_SS_CHANGED = BIT(2),
4958};
4959
4960/**
4961 * struct sta_opmode_info - Station's ht/vht operation mode information
4962 * @changed: contains value from &enum wiphy_opmode_flag
4963 * @smps_mode: New SMPS mode value from &enum nl80211_smps_mode of a station
4964 * @bw: new max bandwidth value from &enum nl80211_chan_width of a station
4965 * @rx_nss: new rx_nss value of a station
4966 */
4967
4968struct sta_opmode_info {
4969 u32 changed;
4970 enum nl80211_smps_mode smps_mode;
4971 enum nl80211_chan_width bw;
4972 u8 rx_nss;
4973};
4974
4975#define VENDOR_CMD_RAW_DATA ((const struct nla_policy *)(long)(-ENODATA))
4976
4977/**
4978 * struct wiphy_vendor_command - vendor command definition
4979 * @info: vendor command identifying information, as used in nl80211
4980 * @flags: flags, see &enum wiphy_vendor_command_flags
4981 * @doit: callback for the operation, note that wdev is %NULL if the
4982 * flags didn't ask for a wdev and non-%NULL otherwise; the data
4983 * pointer may be %NULL if userspace provided no data at all
4984 * @dumpit: dump callback, for transferring bigger/multiple items. The
4985 * @storage points to cb->args[5], ie. is preserved over the multiple
4986 * dumpit calls.
4987 * @policy: policy pointer for attributes within %NL80211_ATTR_VENDOR_DATA.
4988 * Set this to %VENDOR_CMD_RAW_DATA if no policy can be given and the
4989 * attribute is just raw data (e.g. a firmware command).
4990 * @maxattr: highest attribute number in policy
4991 * It's recommended to not have the same sub command with both @doit and
4992 * @dumpit, so that userspace can assume certain ones are get and others
4993 * are used with dump requests.
4994 */
4995struct wiphy_vendor_command {
4996 struct nl80211_vendor_cmd_info info;
4997 u32 flags;
4998 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev,
4999 const void *data, int data_len);
5000 int (*dumpit)(struct wiphy *wiphy, struct wireless_dev *wdev,
5001 struct sk_buff *skb, const void *data, int data_len,
5002 unsigned long *storage);
5003 const struct nla_policy *policy;
5004 unsigned int maxattr;
5005};
5006
5007/**
5008 * struct wiphy_iftype_ext_capab - extended capabilities per interface type
5009 * @iftype: interface type
5010 * @extended_capabilities: extended capabilities supported by the driver,
5011 * additional capabilities might be supported by userspace; these are the
5012 * 802.11 extended capabilities ("Extended Capabilities element") and are
5013 * in the same format as in the information element. See IEEE Std
5014 * 802.11-2012 8.4.2.29 for the defined fields.
5015 * @extended_capabilities_mask: mask of the valid values
5016 * @extended_capabilities_len: length of the extended capabilities
5017 * @eml_capabilities: EML capabilities (for MLO)
5018 * @mld_capa_and_ops: MLD capabilities and operations (for MLO)
5019 */
5020struct wiphy_iftype_ext_capab {
5021 enum nl80211_iftype iftype;
5022 const u8 *extended_capabilities;
5023 const u8 *extended_capabilities_mask;
5024 u8 extended_capabilities_len;
5025 u16 eml_capabilities;
5026 u16 mld_capa_and_ops;
5027};
5028
5029/**
5030 * cfg80211_get_iftype_ext_capa - lookup interface type extended capability
5031 * @wiphy: the wiphy to look up from
5032 * @type: the interface type to look up
5033 */
5034const struct wiphy_iftype_ext_capab *
5035cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
5036
5037/**
5038 * struct cfg80211_pmsr_capabilities - cfg80211 peer measurement capabilities
5039 * @max_peers: maximum number of peers in a single measurement
5040 * @report_ap_tsf: can report assoc AP's TSF for radio resource measurement
5041 * @randomize_mac_addr: can randomize MAC address for measurement
5042 * @ftm: FTM measurement data
5043 * @ftm.supported: FTM measurement is supported
5044 * @ftm.asap: ASAP-mode is supported
5045 * @ftm.non_asap: non-ASAP-mode is supported
5046 * @ftm.request_lci: can request LCI data
5047 * @ftm.request_civicloc: can request civic location data
5048 * @ftm.preambles: bitmap of preambles supported (&enum nl80211_preamble)
5049 * @ftm.bandwidths: bitmap of bandwidths supported (&enum nl80211_chan_width)
5050 * @ftm.max_bursts_exponent: maximum burst exponent supported
5051 * (set to -1 if not limited; note that setting this will necessarily
5052 * forbid using the value 15 to let the responder pick)
5053 * @ftm.max_ftms_per_burst: maximum FTMs per burst supported (set to 0 if
5054 * not limited)
5055 * @ftm.trigger_based: trigger based ranging measurement is supported
5056 * @ftm.non_trigger_based: non trigger based ranging measurement is supported
5057 */
5058struct cfg80211_pmsr_capabilities {
5059 unsigned int max_peers;
5060 u8 report_ap_tsf:1,
5061 randomize_mac_addr:1;
5062
5063 struct {
5064 u32 preambles;
5065 u32 bandwidths;
5066 s8 max_bursts_exponent;
5067 u8 max_ftms_per_burst;
5068 u8 supported:1,
5069 asap:1,
5070 non_asap:1,
5071 request_lci:1,
5072 request_civicloc:1,
5073 trigger_based:1,
5074 non_trigger_based:1;
5075 } ftm;
5076};
5077
5078/**
5079 * struct wiphy_iftype_akm_suites - This structure encapsulates supported akm
5080 * suites for interface types defined in @iftypes_mask. Each type in the
5081 * @iftypes_mask must be unique across all instances of iftype_akm_suites.
5082 *
5083 * @iftypes_mask: bitmask of interfaces types
5084 * @akm_suites: points to an array of supported akm suites
5085 * @n_akm_suites: number of supported AKM suites
5086 */
5087struct wiphy_iftype_akm_suites {
5088 u16 iftypes_mask;
5089 const u32 *akm_suites;
5090 int n_akm_suites;
5091};
5092
5093/**
5094 * struct wiphy - wireless hardware description
5095 * @mtx: mutex for the data (structures) of this device
5096 * @reg_notifier: the driver's regulatory notification callback,
5097 * note that if your driver uses wiphy_apply_custom_regulatory()
5098 * the reg_notifier's request can be passed as NULL
5099 * @regd: the driver's regulatory domain, if one was requested via
5100 * the regulatory_hint() API. This can be used by the driver
5101 * on the reg_notifier() if it chooses to ignore future
5102 * regulatory domain changes caused by other drivers.
5103 * @signal_type: signal type reported in &struct cfg80211_bss.
5104 * @cipher_suites: supported cipher suites
5105 * @n_cipher_suites: number of supported cipher suites
5106 * @akm_suites: supported AKM suites. These are the default AKMs supported if
5107 * the supported AKMs not advertized for a specific interface type in
5108 * iftype_akm_suites.
5109 * @n_akm_suites: number of supported AKM suites
5110 * @iftype_akm_suites: array of supported akm suites info per interface type.
5111 * Note that the bits in @iftypes_mask inside this structure cannot
5112 * overlap (i.e. only one occurrence of each type is allowed across all
5113 * instances of iftype_akm_suites).
5114 * @num_iftype_akm_suites: number of interface types for which supported akm
5115 * suites are specified separately.
5116 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
5117 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
5118 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
5119 * -1 = fragmentation disabled, only odd values >= 256 used
5120 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
5121 * @_net: the network namespace this wiphy currently lives in
5122 * @perm_addr: permanent MAC address of this device
5123 * @addr_mask: If the device supports multiple MAC addresses by masking,
5124 * set this to a mask with variable bits set to 1, e.g. if the last
5125 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
5126 * variable bits shall be determined by the interfaces added, with
5127 * interfaces not matching the mask being rejected to be brought up.
5128 * @n_addresses: number of addresses in @addresses.
5129 * @addresses: If the device has more than one address, set this pointer
5130 * to a list of addresses (6 bytes each). The first one will be used
5131 * by default for perm_addr. In this case, the mask should be set to
5132 * all-zeroes. In this case it is assumed that the device can handle
5133 * the same number of arbitrary MAC addresses.
5134 * @registered: protects ->resume and ->suspend sysfs callbacks against
5135 * unregister hardware
5136 * @debugfsdir: debugfs directory used for this wiphy (ieee80211/<wiphyname>).
5137 * It will be renamed automatically on wiphy renames
5138 * @dev: (virtual) struct device for this wiphy. The item in
5139 * /sys/class/ieee80211/ points to this. You need use set_wiphy_dev()
5140 * (see below).
5141 * @wext: wireless extension handlers
5142 * @priv: driver private data (sized according to wiphy_new() parameter)
5143 * @interface_modes: bitmask of interfaces types valid for this wiphy,
5144 * must be set by driver
5145 * @iface_combinations: Valid interface combinations array, should not
5146 * list single interface types.
5147 * @n_iface_combinations: number of entries in @iface_combinations array.
5148 * @software_iftypes: bitmask of software interface types, these are not
5149 * subject to any restrictions since they are purely managed in SW.
5150 * @flags: wiphy flags, see &enum wiphy_flags
5151 * @regulatory_flags: wiphy regulatory flags, see
5152 * &enum ieee80211_regulatory_flags
5153 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
5154 * @ext_features: extended features advertised to nl80211, see
5155 * &enum nl80211_ext_feature_index.
5156 * @bss_priv_size: each BSS struct has private data allocated with it,
5157 * this variable determines its size
5158 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
5159 * any given scan
5160 * @max_sched_scan_reqs: maximum number of scheduled scan requests that
5161 * the device can run concurrently.
5162 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
5163 * for in any given scheduled scan
5164 * @max_match_sets: maximum number of match sets the device can handle
5165 * when performing a scheduled scan, 0 if filtering is not
5166 * supported.
5167 * @max_scan_ie_len: maximum length of user-controlled IEs device can
5168 * add to probe request frames transmitted during a scan, must not
5169 * include fixed IEs like supported rates
5170 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
5171 * scans
5172 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number
5173 * of iterations) for scheduled scan supported by the device.
5174 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a
5175 * single scan plan supported by the device.
5176 * @max_sched_scan_plan_iterations: maximum number of iterations for a single
5177 * scan plan supported by the device.
5178 * @coverage_class: current coverage class
5179 * @fw_version: firmware version for ethtool reporting
5180 * @hw_version: hardware version for ethtool reporting
5181 * @max_num_pmkids: maximum number of PMKIDs supported by device
5182 * @privid: a pointer that drivers can use to identify if an arbitrary
5183 * wiphy is theirs, e.g. in global notifiers
5184 * @bands: information about bands/channels supported by this device
5185 *
5186 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
5187 * transmitted through nl80211, points to an array indexed by interface
5188 * type
5189 *
5190 * @available_antennas_tx: bitmap of antennas which are available to be
5191 * configured as TX antennas. Antenna configuration commands will be
5192 * rejected unless this or @available_antennas_rx is set.
5193 *
5194 * @available_antennas_rx: bitmap of antennas which are available to be
5195 * configured as RX antennas. Antenna configuration commands will be
5196 * rejected unless this or @available_antennas_tx is set.
5197 *
5198 * @probe_resp_offload:
5199 * Bitmap of supported protocols for probe response offloading.
5200 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
5201 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
5202 *
5203 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
5204 * may request, if implemented.
5205 *
5206 * @wowlan: WoWLAN support information
5207 * @wowlan_config: current WoWLAN configuration; this should usually not be
5208 * used since access to it is necessarily racy, use the parameter passed
5209 * to the suspend() operation instead.
5210 *
5211 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
5212 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
5213 * If null, then none can be over-ridden.
5214 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
5215 * If null, then none can be over-ridden.
5216 *
5217 * @wdev_list: the list of associated (virtual) interfaces; this list must
5218 * not be modified by the driver, but can be read with RTNL/RCU protection.
5219 *
5220 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
5221 * supports for ACL.
5222 *
5223 * @extended_capabilities: extended capabilities supported by the driver,
5224 * additional capabilities might be supported by userspace; these are
5225 * the 802.11 extended capabilities ("Extended Capabilities element")
5226 * and are in the same format as in the information element. See
5227 * 802.11-2012 8.4.2.29 for the defined fields. These are the default
5228 * extended capabilities to be used if the capabilities are not specified
5229 * for a specific interface type in iftype_ext_capab.
5230 * @extended_capabilities_mask: mask of the valid values
5231 * @extended_capabilities_len: length of the extended capabilities
5232 * @iftype_ext_capab: array of extended capabilities per interface type
5233 * @num_iftype_ext_capab: number of interface types for which extended
5234 * capabilities are specified separately.
5235 * @coalesce: packet coalescing support information
5236 *
5237 * @vendor_commands: array of vendor commands supported by the hardware
5238 * @n_vendor_commands: number of vendor commands
5239 * @vendor_events: array of vendor events supported by the hardware
5240 * @n_vendor_events: number of vendor events
5241 *
5242 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
5243 * (including P2P GO) or 0 to indicate no such limit is advertised. The
5244 * driver is allowed to advertise a theoretical limit that it can reach in
5245 * some cases, but may not always reach.
5246 *
5247 * @max_num_csa_counters: Number of supported csa_counters in beacons
5248 * and probe responses. This value should be set if the driver
5249 * wishes to limit the number of csa counters. Default (0) means
5250 * infinite.
5251 * @bss_select_support: bitmask indicating the BSS selection criteria supported
5252 * by the driver in the .connect() callback. The bit position maps to the
5253 * attribute indices defined in &enum nl80211_bss_select_attr.
5254 *
5255 * @nan_supported_bands: bands supported by the device in NAN mode, a
5256 * bitmap of &enum nl80211_band values. For instance, for
5257 * NL80211_BAND_2GHZ, bit 0 would be set
5258 * (i.e. BIT(NL80211_BAND_2GHZ)).
5259 *
5260 * @txq_limit: configuration of internal TX queue frame limit
5261 * @txq_memory_limit: configuration internal TX queue memory limit
5262 * @txq_quantum: configuration of internal TX queue scheduler quantum
5263 *
5264 * @tx_queue_len: allow setting transmit queue len for drivers not using
5265 * wake_tx_queue
5266 *
5267 * @support_mbssid: can HW support association with nontransmitted AP
5268 * @support_only_he_mbssid: don't parse MBSSID elements if it is not
5269 * HE AP, in order to avoid compatibility issues.
5270 * @support_mbssid must be set for this to have any effect.
5271 *
5272 * @pmsr_capa: peer measurement capabilities
5273 *
5274 * @tid_config_support: describes the per-TID config support that the
5275 * device has
5276 * @tid_config_support.vif: bitmap of attributes (configurations)
5277 * supported by the driver for each vif
5278 * @tid_config_support.peer: bitmap of attributes (configurations)
5279 * supported by the driver for each peer
5280 * @tid_config_support.max_retry: maximum supported retry count for
5281 * long/short retry configuration
5282 *
5283 * @max_data_retry_count: maximum supported per TID retry count for
5284 * configuration through the %NL80211_TID_CONFIG_ATTR_RETRY_SHORT and
5285 * %NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes
5286 * @sar_capa: SAR control capabilities
5287 * @rfkill: a pointer to the rfkill structure
5288 *
5289 * @mbssid_max_interfaces: maximum number of interfaces supported by the driver
5290 * in a multiple BSSID set. This field must be set to a non-zero value
5291 * by the driver to advertise MBSSID support.
5292 * @ema_max_profile_periodicity: maximum profile periodicity supported by
5293 * the driver. Setting this field to a non-zero value indicates that the
5294 * driver supports enhanced multi-BSSID advertisements (EMA AP).
5295 * @max_num_akm_suites: maximum number of AKM suites allowed for
5296 * configuration through %NL80211_CMD_CONNECT, %NL80211_CMD_ASSOCIATE and
5297 * %NL80211_CMD_START_AP. Set to NL80211_MAX_NR_AKM_SUITES if not set by
5298 * driver. If set by driver minimum allowed value is
5299 * NL80211_MAX_NR_AKM_SUITES in order to avoid compatibility issues with
5300 * legacy userspace and maximum allowed value is
5301 * CFG80211_MAX_NUM_AKM_SUITES.
5302 */
5303struct wiphy {
5304 struct mutex mtx;
5305
5306 /* assign these fields before you register the wiphy */
5307
5308 u8 perm_addr[ETH_ALEN];
5309 u8 addr_mask[ETH_ALEN];
5310
5311 struct mac_address *addresses;
5312
5313 const struct ieee80211_txrx_stypes *mgmt_stypes;
5314
5315 const struct ieee80211_iface_combination *iface_combinations;
5316 int n_iface_combinations;
5317 u16 software_iftypes;
5318
5319 u16 n_addresses;
5320
5321 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
5322 u16 interface_modes;
5323
5324 u16 max_acl_mac_addrs;
5325
5326 u32 flags, regulatory_flags, features;
5327 u8 ext_features[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES, 8)];
5328
5329 u32 ap_sme_capa;
5330
5331 enum cfg80211_signal_type signal_type;
5332
5333 int bss_priv_size;
5334 u8 max_scan_ssids;
5335 u8 max_sched_scan_reqs;
5336 u8 max_sched_scan_ssids;
5337 u8 max_match_sets;
5338 u16 max_scan_ie_len;
5339 u16 max_sched_scan_ie_len;
5340 u32 max_sched_scan_plans;
5341 u32 max_sched_scan_plan_interval;
5342 u32 max_sched_scan_plan_iterations;
5343
5344 int n_cipher_suites;
5345 const u32 *cipher_suites;
5346
5347 int n_akm_suites;
5348 const u32 *akm_suites;
5349
5350 const struct wiphy_iftype_akm_suites *iftype_akm_suites;
5351 unsigned int num_iftype_akm_suites;
5352
5353 u8 retry_short;
5354 u8 retry_long;
5355 u32 frag_threshold;
5356 u32 rts_threshold;
5357 u8 coverage_class;
5358
5359 char fw_version[ETHTOOL_FWVERS_LEN];
5360 u32 hw_version;
5361
5362#ifdef CONFIG_PM
5363 const struct wiphy_wowlan_support *wowlan;
5364 struct cfg80211_wowlan *wowlan_config;
5365#endif
5366
5367 u16 max_remain_on_channel_duration;
5368
5369 u8 max_num_pmkids;
5370
5371 u32 available_antennas_tx;
5372 u32 available_antennas_rx;
5373
5374 u32 probe_resp_offload;
5375
5376 const u8 *extended_capabilities, *extended_capabilities_mask;
5377 u8 extended_capabilities_len;
5378
5379 const struct wiphy_iftype_ext_capab *iftype_ext_capab;
5380 unsigned int num_iftype_ext_capab;
5381
5382 const void *privid;
5383
5384 struct ieee80211_supported_band *bands[NUM_NL80211_BANDS];
5385
5386 void (*reg_notifier)(struct wiphy *wiphy,
5387 struct regulatory_request *request);
5388
5389 /* fields below are read-only, assigned by cfg80211 */
5390
5391 const struct ieee80211_regdomain __rcu *regd;
5392
5393 struct device dev;
5394
5395 bool registered;
5396
5397 struct dentry *debugfsdir;
5398
5399 const struct ieee80211_ht_cap *ht_capa_mod_mask;
5400 const struct ieee80211_vht_cap *vht_capa_mod_mask;
5401
5402 struct list_head wdev_list;
5403
5404 possible_net_t _net;
5405
5406#ifdef CONFIG_CFG80211_WEXT
5407 const struct iw_handler_def *wext;
5408#endif
5409
5410 const struct wiphy_coalesce_support *coalesce;
5411
5412 const struct wiphy_vendor_command *vendor_commands;
5413 const struct nl80211_vendor_cmd_info *vendor_events;
5414 int n_vendor_commands, n_vendor_events;
5415
5416 u16 max_ap_assoc_sta;
5417
5418 u8 max_num_csa_counters;
5419
5420 u32 bss_select_support;
5421
5422 u8 nan_supported_bands;
5423
5424 u32 txq_limit;
5425 u32 txq_memory_limit;
5426 u32 txq_quantum;
5427
5428 unsigned long tx_queue_len;
5429
5430 u8 support_mbssid:1,
5431 support_only_he_mbssid:1;
5432
5433 const struct cfg80211_pmsr_capabilities *pmsr_capa;
5434
5435 struct {
5436 u64 peer, vif;
5437 u8 max_retry;
5438 } tid_config_support;
5439
5440 u8 max_data_retry_count;
5441
5442 const struct cfg80211_sar_capa *sar_capa;
5443
5444 struct rfkill *rfkill;
5445
5446 u8 mbssid_max_interfaces;
5447 u8 ema_max_profile_periodicity;
5448 u16 max_num_akm_suites;
5449
5450 char priv[] __aligned(NETDEV_ALIGN);
5451};
5452
5453static inline struct net *wiphy_net(struct wiphy *wiphy)
5454{
5455 return read_pnet(&wiphy->_net);
5456}
5457
5458static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
5459{
5460 write_pnet(&wiphy->_net, net);
5461}
5462
5463/**
5464 * wiphy_priv - return priv from wiphy
5465 *
5466 * @wiphy: the wiphy whose priv pointer to return
5467 * Return: The priv of @wiphy.
5468 */
5469static inline void *wiphy_priv(struct wiphy *wiphy)
5470{
5471 BUG_ON(!wiphy);
5472 return &wiphy->priv;
5473}
5474
5475/**
5476 * priv_to_wiphy - return the wiphy containing the priv
5477 *
5478 * @priv: a pointer previously returned by wiphy_priv
5479 * Return: The wiphy of @priv.
5480 */
5481static inline struct wiphy *priv_to_wiphy(void *priv)
5482{
5483 BUG_ON(!priv);
5484 return container_of(priv, struct wiphy, priv);
5485}
5486
5487/**
5488 * set_wiphy_dev - set device pointer for wiphy
5489 *
5490 * @wiphy: The wiphy whose device to bind
5491 * @dev: The device to parent it to
5492 */
5493static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
5494{
5495 wiphy->dev.parent = dev;
5496}
5497
5498/**
5499 * wiphy_dev - get wiphy dev pointer
5500 *
5501 * @wiphy: The wiphy whose device struct to look up
5502 * Return: The dev of @wiphy.
5503 */
5504static inline struct device *wiphy_dev(struct wiphy *wiphy)
5505{
5506 return wiphy->dev.parent;
5507}
5508
5509/**
5510 * wiphy_name - get wiphy name
5511 *
5512 * @wiphy: The wiphy whose name to return
5513 * Return: The name of @wiphy.
5514 */
5515static inline const char *wiphy_name(const struct wiphy *wiphy)
5516{
5517 return dev_name(&wiphy->dev);
5518}
5519
5520/**
5521 * wiphy_new_nm - create a new wiphy for use with cfg80211
5522 *
5523 * @ops: The configuration operations for this device
5524 * @sizeof_priv: The size of the private area to allocate
5525 * @requested_name: Request a particular name.
5526 * NULL is valid value, and means use the default phy%d naming.
5527 *
5528 * Create a new wiphy and associate the given operations with it.
5529 * @sizeof_priv bytes are allocated for private use.
5530 *
5531 * Return: A pointer to the new wiphy. This pointer must be
5532 * assigned to each netdev's ieee80211_ptr for proper operation.
5533 */
5534struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
5535 const char *requested_name);
5536
5537/**
5538 * wiphy_new - create a new wiphy for use with cfg80211
5539 *
5540 * @ops: The configuration operations for this device
5541 * @sizeof_priv: The size of the private area to allocate
5542 *
5543 * Create a new wiphy and associate the given operations with it.
5544 * @sizeof_priv bytes are allocated for private use.
5545 *
5546 * Return: A pointer to the new wiphy. This pointer must be
5547 * assigned to each netdev's ieee80211_ptr for proper operation.
5548 */
5549static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops,
5550 int sizeof_priv)
5551{
5552 return wiphy_new_nm(ops, sizeof_priv, NULL);
5553}
5554
5555/**
5556 * wiphy_register - register a wiphy with cfg80211
5557 *
5558 * @wiphy: The wiphy to register.
5559 *
5560 * Return: A non-negative wiphy index or a negative error code.
5561 */
5562int wiphy_register(struct wiphy *wiphy);
5563
5564/* this is a define for better error reporting (file/line) */
5565#define lockdep_assert_wiphy(wiphy) lockdep_assert_held(&(wiphy)->mtx)
5566
5567/**
5568 * rcu_dereference_wiphy - rcu_dereference with debug checking
5569 * @wiphy: the wiphy to check the locking on
5570 * @p: The pointer to read, prior to dereferencing
5571 *
5572 * Do an rcu_dereference(p), but check caller either holds rcu_read_lock()
5573 * or RTNL. Note: Please prefer wiphy_dereference() or rcu_dereference().
5574 */
5575#define rcu_dereference_wiphy(wiphy, p) \
5576 rcu_dereference_check(p, lockdep_is_held(&wiphy->mtx))
5577
5578/**
5579 * wiphy_dereference - fetch RCU pointer when updates are prevented by wiphy mtx
5580 * @wiphy: the wiphy to check the locking on
5581 * @p: The pointer to read, prior to dereferencing
5582 *
5583 * Return the value of the specified RCU-protected pointer, but omit the
5584 * READ_ONCE(), because caller holds the wiphy mutex used for updates.
5585 */
5586#define wiphy_dereference(wiphy, p) \
5587 rcu_dereference_protected(p, lockdep_is_held(&wiphy->mtx))
5588
5589/**
5590 * get_wiphy_regdom - get custom regdomain for the given wiphy
5591 * @wiphy: the wiphy to get the regdomain from
5592 */
5593const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy);
5594
5595/**
5596 * wiphy_unregister - deregister a wiphy from cfg80211
5597 *
5598 * @wiphy: The wiphy to unregister.
5599 *
5600 * After this call, no more requests can be made with this priv
5601 * pointer, but the call may sleep to wait for an outstanding
5602 * request that is being handled.
5603 */
5604void wiphy_unregister(struct wiphy *wiphy);
5605
5606/**
5607 * wiphy_free - free wiphy
5608 *
5609 * @wiphy: The wiphy to free
5610 */
5611void wiphy_free(struct wiphy *wiphy);
5612
5613/* internal structs */
5614struct cfg80211_conn;
5615struct cfg80211_internal_bss;
5616struct cfg80211_cached_keys;
5617struct cfg80211_cqm_config;
5618
5619/**
5620 * wiphy_lock - lock the wiphy
5621 * @wiphy: the wiphy to lock
5622 *
5623 * This is mostly exposed so it can be done around registering and
5624 * unregistering netdevs that aren't created through cfg80211 calls,
5625 * since that requires locking in cfg80211 when the notifiers is
5626 * called, but that cannot differentiate which way it's called.
5627 *
5628 * When cfg80211 ops are called, the wiphy is already locked.
5629 */
5630static inline void wiphy_lock(struct wiphy *wiphy)
5631 __acquires(&wiphy->mtx)
5632{
5633 mutex_lock(&wiphy->mtx);
5634 __acquire(&wiphy->mtx);
5635}
5636
5637/**
5638 * wiphy_unlock - unlock the wiphy again
5639 * @wiphy: the wiphy to unlock
5640 */
5641static inline void wiphy_unlock(struct wiphy *wiphy)
5642 __releases(&wiphy->mtx)
5643{
5644 __release(&wiphy->mtx);
5645 mutex_unlock(&wiphy->mtx);
5646}
5647
5648/**
5649 * struct wireless_dev - wireless device state
5650 *
5651 * For netdevs, this structure must be allocated by the driver
5652 * that uses the ieee80211_ptr field in struct net_device (this
5653 * is intentional so it can be allocated along with the netdev.)
5654 * It need not be registered then as netdev registration will
5655 * be intercepted by cfg80211 to see the new wireless device,
5656 * however, drivers must lock the wiphy before registering or
5657 * unregistering netdevs if they pre-create any netdevs (in ops
5658 * called from cfg80211, the wiphy is already locked.)
5659 *
5660 * For non-netdev uses, it must also be allocated by the driver
5661 * in response to the cfg80211 callbacks that require it, as
5662 * there's no netdev registration in that case it may not be
5663 * allocated outside of callback operations that return it.
5664 *
5665 * @wiphy: pointer to hardware description
5666 * @iftype: interface type
5667 * @registered: is this wdev already registered with cfg80211
5668 * @registering: indicates we're doing registration under wiphy lock
5669 * for the notifier
5670 * @list: (private) Used to collect the interfaces
5671 * @netdev: (private) Used to reference back to the netdev, may be %NULL
5672 * @identifier: (private) Identifier used in nl80211 to identify this
5673 * wireless device if it has no netdev
5674 * @u: union containing data specific to @iftype
5675 * @connected: indicates if connected or not (STA mode)
5676 * @bssid: (private) Used by the internal configuration code
5677 * @wext: (private) Used by the internal wireless extensions compat code
5678 * @wext.ibss: (private) IBSS data part of wext handling
5679 * @wext.connect: (private) connection handling data
5680 * @wext.keys: (private) (WEP) key data
5681 * @wext.ie: (private) extra elements for association
5682 * @wext.ie_len: (private) length of extra elements
5683 * @wext.bssid: (private) selected network BSSID
5684 * @wext.ssid: (private) selected network SSID
5685 * @wext.default_key: (private) selected default key index
5686 * @wext.default_mgmt_key: (private) selected default management key index
5687 * @wext.prev_bssid: (private) previous BSSID for reassociation
5688 * @wext.prev_bssid_valid: (private) previous BSSID validity
5689 * @use_4addr: indicates 4addr mode is used on this interface, must be
5690 * set by driver (if supported) on add_interface BEFORE registering the
5691 * netdev and may otherwise be used by driver read-only, will be update
5692 * by cfg80211 on change_interface
5693 * @mgmt_registrations: list of registrations for management frames
5694 * @mgmt_registrations_need_update: mgmt registrations were updated,
5695 * need to propagate the update to the driver
5696 * @mtx: mutex used to lock data in this struct, may be used by drivers
5697 * and some API functions require it held
5698 * @beacon_interval: beacon interval used on this device for transmitting
5699 * beacons, 0 when not valid
5700 * @address: The address for this device, valid only if @netdev is %NULL
5701 * @is_running: true if this is a non-netdev device that has been started, e.g.
5702 * the P2P Device.
5703 * @cac_started: true if DFS channel availability check has been started
5704 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
5705 * @cac_time_ms: CAC time in ms
5706 * @ps: powersave mode is enabled
5707 * @ps_timeout: dynamic powersave timeout
5708 * @ap_unexpected_nlportid: (private) netlink port ID of application
5709 * registered for unexpected class 3 frames (AP mode)
5710 * @conn: (private) cfg80211 software SME connection state machine data
5711 * @connect_keys: (private) keys to set after connection is established
5712 * @conn_bss_type: connecting/connected BSS type
5713 * @conn_owner_nlportid: (private) connection owner socket port ID
5714 * @disconnect_wk: (private) auto-disconnect work
5715 * @disconnect_bssid: (private) the BSSID to use for auto-disconnect
5716 * @event_list: (private) list for internal event processing
5717 * @event_lock: (private) lock for event list
5718 * @owner_nlportid: (private) owner socket port ID
5719 * @nl_owner_dead: (private) owner socket went away
5720 * @cqm_config: (private) nl80211 RSSI monitor state
5721 * @pmsr_list: (private) peer measurement requests
5722 * @pmsr_lock: (private) peer measurements requests/results lock
5723 * @pmsr_free_wk: (private) peer measurements cleanup work
5724 * @unprot_beacon_reported: (private) timestamp of last
5725 * unprotected beacon report
5726 * @links: array of %IEEE80211_MLD_MAX_NUM_LINKS elements containing @addr
5727 * @ap and @client for each link
5728 * @valid_links: bitmap describing what elements of @links are valid
5729 */
5730struct wireless_dev {
5731 struct wiphy *wiphy;
5732 enum nl80211_iftype iftype;
5733
5734 /* the remainder of this struct should be private to cfg80211 */
5735 struct list_head list;
5736 struct net_device *netdev;
5737
5738 u32 identifier;
5739
5740 struct list_head mgmt_registrations;
5741 u8 mgmt_registrations_need_update:1;
5742
5743 struct mutex mtx;
5744
5745 bool use_4addr, is_running, registered, registering;
5746
5747 u8 address[ETH_ALEN] __aligned(sizeof(u16));
5748
5749 /* currently used for IBSS and SME - might be rearranged later */
5750 struct cfg80211_conn *conn;
5751 struct cfg80211_cached_keys *connect_keys;
5752 enum ieee80211_bss_type conn_bss_type;
5753 u32 conn_owner_nlportid;
5754
5755 struct work_struct disconnect_wk;
5756 u8 disconnect_bssid[ETH_ALEN];
5757
5758 struct list_head event_list;
5759 spinlock_t event_lock;
5760
5761 u8 connected:1;
5762
5763 bool ps;
5764 int ps_timeout;
5765
5766 u32 ap_unexpected_nlportid;
5767
5768 u32 owner_nlportid;
5769 bool nl_owner_dead;
5770
5771 /* FIXME: need to rework radar detection for MLO */
5772 bool cac_started;
5773 unsigned long cac_start_time;
5774 unsigned int cac_time_ms;
5775
5776#ifdef CONFIG_CFG80211_WEXT
5777 /* wext data */
5778 struct {
5779 struct cfg80211_ibss_params ibss;
5780 struct cfg80211_connect_params connect;
5781 struct cfg80211_cached_keys *keys;
5782 const u8 *ie;
5783 size_t ie_len;
5784 u8 bssid[ETH_ALEN];
5785 u8 prev_bssid[ETH_ALEN];
5786 u8 ssid[IEEE80211_MAX_SSID_LEN];
5787 s8 default_key, default_mgmt_key;
5788 bool prev_bssid_valid;
5789 } wext;
5790#endif
5791
5792 struct cfg80211_cqm_config *cqm_config;
5793
5794 struct list_head pmsr_list;
5795 spinlock_t pmsr_lock;
5796 struct work_struct pmsr_free_wk;
5797
5798 unsigned long unprot_beacon_reported;
5799
5800 union {
5801 struct {
5802 u8 connected_addr[ETH_ALEN] __aligned(2);
5803 u8 ssid[IEEE80211_MAX_SSID_LEN];
5804 u8 ssid_len;
5805 } client;
5806 struct {
5807 int beacon_interval;
5808 struct cfg80211_chan_def preset_chandef;
5809 struct cfg80211_chan_def chandef;
5810 u8 id[IEEE80211_MAX_SSID_LEN];
5811 u8 id_len, id_up_len;
5812 } mesh;
5813 struct {
5814 struct cfg80211_chan_def preset_chandef;
5815 u8 ssid[IEEE80211_MAX_SSID_LEN];
5816 u8 ssid_len;
5817 } ap;
5818 struct {
5819 struct cfg80211_internal_bss *current_bss;
5820 struct cfg80211_chan_def chandef;
5821 int beacon_interval;
5822 u8 ssid[IEEE80211_MAX_SSID_LEN];
5823 u8 ssid_len;
5824 } ibss;
5825 struct {
5826 struct cfg80211_chan_def chandef;
5827 } ocb;
5828 } u;
5829
5830 struct {
5831 u8 addr[ETH_ALEN] __aligned(2);
5832 union {
5833 struct {
5834 unsigned int beacon_interval;
5835 struct cfg80211_chan_def chandef;
5836 } ap;
5837 struct {
5838 struct cfg80211_internal_bss *current_bss;
5839 } client;
5840 };
5841 } links[IEEE80211_MLD_MAX_NUM_LINKS];
5842 u16 valid_links;
5843};
5844
5845static inline const u8 *wdev_address(struct wireless_dev *wdev)
5846{
5847 if (wdev->netdev)
5848 return wdev->netdev->dev_addr;
5849 return wdev->address;
5850}
5851
5852static inline bool wdev_running(struct wireless_dev *wdev)
5853{
5854 if (wdev->netdev)
5855 return netif_running(wdev->netdev);
5856 return wdev->is_running;
5857}
5858
5859/**
5860 * wdev_priv - return wiphy priv from wireless_dev
5861 *
5862 * @wdev: The wireless device whose wiphy's priv pointer to return
5863 * Return: The wiphy priv of @wdev.
5864 */
5865static inline void *wdev_priv(struct wireless_dev *wdev)
5866{
5867 BUG_ON(!wdev);
5868 return wiphy_priv(wdev->wiphy);
5869}
5870
5871/**
5872 * wdev_chandef - return chandef pointer from wireless_dev
5873 * @wdev: the wdev
5874 * @link_id: the link ID for MLO
5875 *
5876 * Return: The chandef depending on the mode, or %NULL.
5877 */
5878struct cfg80211_chan_def *wdev_chandef(struct wireless_dev *wdev,
5879 unsigned int link_id);
5880
5881static inline void WARN_INVALID_LINK_ID(struct wireless_dev *wdev,
5882 unsigned int link_id)
5883{
5884 WARN_ON(link_id && !wdev->valid_links);
5885 WARN_ON(wdev->valid_links &&
5886 !(wdev->valid_links & BIT(link_id)));
5887}
5888
5889#define for_each_valid_link(link_info, link_id) \
5890 for (link_id = 0; \
5891 link_id < ((link_info)->valid_links ? \
5892 ARRAY_SIZE((link_info)->links) : 1); \
5893 link_id++) \
5894 if (!(link_info)->valid_links || \
5895 ((link_info)->valid_links & BIT(link_id)))
5896
5897/**
5898 * DOC: Utility functions
5899 *
5900 * cfg80211 offers a number of utility functions that can be useful.
5901 */
5902
5903/**
5904 * ieee80211_channel_equal - compare two struct ieee80211_channel
5905 *
5906 * @a: 1st struct ieee80211_channel
5907 * @b: 2nd struct ieee80211_channel
5908 * Return: true if center frequency of @a == @b
5909 */
5910static inline bool
5911ieee80211_channel_equal(struct ieee80211_channel *a,
5912 struct ieee80211_channel *b)
5913{
5914 return (a->center_freq == b->center_freq &&
5915 a->freq_offset == b->freq_offset);
5916}
5917
5918/**
5919 * ieee80211_channel_to_khz - convert ieee80211_channel to frequency in KHz
5920 * @chan: struct ieee80211_channel to convert
5921 * Return: The corresponding frequency (in KHz)
5922 */
5923static inline u32
5924ieee80211_channel_to_khz(const struct ieee80211_channel *chan)
5925{
5926 return MHZ_TO_KHZ(chan->center_freq) + chan->freq_offset;
5927}
5928
5929/**
5930 * ieee80211_s1g_channel_width - get allowed channel width from @chan
5931 *
5932 * Only allowed for band NL80211_BAND_S1GHZ
5933 * @chan: channel
5934 * Return: The allowed channel width for this center_freq
5935 */
5936enum nl80211_chan_width
5937ieee80211_s1g_channel_width(const struct ieee80211_channel *chan);
5938
5939/**
5940 * ieee80211_channel_to_freq_khz - convert channel number to frequency
5941 * @chan: channel number
5942 * @band: band, necessary due to channel number overlap
5943 * Return: The corresponding frequency (in KHz), or 0 if the conversion failed.
5944 */
5945u32 ieee80211_channel_to_freq_khz(int chan, enum nl80211_band band);
5946
5947/**
5948 * ieee80211_channel_to_frequency - convert channel number to frequency
5949 * @chan: channel number
5950 * @band: band, necessary due to channel number overlap
5951 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
5952 */
5953static inline int
5954ieee80211_channel_to_frequency(int chan, enum nl80211_band band)
5955{
5956 return KHZ_TO_MHZ(ieee80211_channel_to_freq_khz(chan, band));
5957}
5958
5959/**
5960 * ieee80211_freq_khz_to_channel - convert frequency to channel number
5961 * @freq: center frequency in KHz
5962 * Return: The corresponding channel, or 0 if the conversion failed.
5963 */
5964int ieee80211_freq_khz_to_channel(u32 freq);
5965
5966/**
5967 * ieee80211_frequency_to_channel - convert frequency to channel number
5968 * @freq: center frequency in MHz
5969 * Return: The corresponding channel, or 0 if the conversion failed.
5970 */
5971static inline int
5972ieee80211_frequency_to_channel(int freq)
5973{
5974 return ieee80211_freq_khz_to_channel(MHZ_TO_KHZ(freq));
5975}
5976
5977/**
5978 * ieee80211_get_channel_khz - get channel struct from wiphy for specified
5979 * frequency
5980 * @wiphy: the struct wiphy to get the channel for
5981 * @freq: the center frequency (in KHz) of the channel
5982 * Return: The channel struct from @wiphy at @freq.
5983 */
5984struct ieee80211_channel *
5985ieee80211_get_channel_khz(struct wiphy *wiphy, u32 freq);
5986
5987/**
5988 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
5989 *
5990 * @wiphy: the struct wiphy to get the channel for
5991 * @freq: the center frequency (in MHz) of the channel
5992 * Return: The channel struct from @wiphy at @freq.
5993 */
5994static inline struct ieee80211_channel *
5995ieee80211_get_channel(struct wiphy *wiphy, int freq)
5996{
5997 return ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(freq));
5998}
5999
6000/**
6001 * cfg80211_channel_is_psc - Check if the channel is a 6 GHz PSC
6002 * @chan: control channel to check
6003 *
6004 * The Preferred Scanning Channels (PSC) are defined in
6005 * Draft IEEE P802.11ax/D5.0, 26.17.2.3.3
6006 */
6007static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan)
6008{
6009 if (chan->band != NL80211_BAND_6GHZ)
6010 return false;
6011
6012 return ieee80211_frequency_to_channel(chan->center_freq) % 16 == 5;
6013}
6014
6015/**
6016 * ieee80211_get_response_rate - get basic rate for a given rate
6017 *
6018 * @sband: the band to look for rates in
6019 * @basic_rates: bitmap of basic rates
6020 * @bitrate: the bitrate for which to find the basic rate
6021 *
6022 * Return: The basic rate corresponding to a given bitrate, that
6023 * is the next lower bitrate contained in the basic rate map,
6024 * which is, for this function, given as a bitmap of indices of
6025 * rates in the band's bitrate table.
6026 */
6027const struct ieee80211_rate *
6028ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
6029 u32 basic_rates, int bitrate);
6030
6031/**
6032 * ieee80211_mandatory_rates - get mandatory rates for a given band
6033 * @sband: the band to look for rates in
6034 * @scan_width: width of the control channel
6035 *
6036 * This function returns a bitmap of the mandatory rates for the given
6037 * band, bits are set according to the rate position in the bitrates array.
6038 */
6039u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband,
6040 enum nl80211_bss_scan_width scan_width);
6041
6042/*
6043 * Radiotap parsing functions -- for controlled injection support
6044 *
6045 * Implemented in net/wireless/radiotap.c
6046 * Documentation in Documentation/networking/radiotap-headers.rst
6047 */
6048
6049struct radiotap_align_size {
6050 uint8_t align:4, size:4;
6051};
6052
6053struct ieee80211_radiotap_namespace {
6054 const struct radiotap_align_size *align_size;
6055 int n_bits;
6056 uint32_t oui;
6057 uint8_t subns;
6058};
6059
6060struct ieee80211_radiotap_vendor_namespaces {
6061 const struct ieee80211_radiotap_namespace *ns;
6062 int n_ns;
6063};
6064
6065/**
6066 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
6067 * @this_arg_index: index of current arg, valid after each successful call
6068 * to ieee80211_radiotap_iterator_next()
6069 * @this_arg: pointer to current radiotap arg; it is valid after each
6070 * call to ieee80211_radiotap_iterator_next() but also after
6071 * ieee80211_radiotap_iterator_init() where it will point to
6072 * the beginning of the actual data portion
6073 * @this_arg_size: length of the current arg, for convenience
6074 * @current_namespace: pointer to the current namespace definition
6075 * (or internally %NULL if the current namespace is unknown)
6076 * @is_radiotap_ns: indicates whether the current namespace is the default
6077 * radiotap namespace or not
6078 *
6079 * @_rtheader: pointer to the radiotap header we are walking through
6080 * @_max_length: length of radiotap header in cpu byte ordering
6081 * @_arg_index: next argument index
6082 * @_arg: next argument pointer
6083 * @_next_bitmap: internal pointer to next present u32
6084 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
6085 * @_vns: vendor namespace definitions
6086 * @_next_ns_data: beginning of the next namespace's data
6087 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
6088 * next bitmap word
6089 *
6090 * Describes the radiotap parser state. Fields prefixed with an underscore
6091 * must not be used by users of the parser, only by the parser internally.
6092 */
6093
6094struct ieee80211_radiotap_iterator {
6095 struct ieee80211_radiotap_header *_rtheader;
6096 const struct ieee80211_radiotap_vendor_namespaces *_vns;
6097 const struct ieee80211_radiotap_namespace *current_namespace;
6098
6099 unsigned char *_arg, *_next_ns_data;
6100 __le32 *_next_bitmap;
6101
6102 unsigned char *this_arg;
6103 int this_arg_index;
6104 int this_arg_size;
6105
6106 int is_radiotap_ns;
6107
6108 int _max_length;
6109 int _arg_index;
6110 uint32_t _bitmap_shifter;
6111 int _reset_on_ext;
6112};
6113
6114int
6115ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator,
6116 struct ieee80211_radiotap_header *radiotap_header,
6117 int max_length,
6118 const struct ieee80211_radiotap_vendor_namespaces *vns);
6119
6120int
6121ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator);
6122
6123
6124extern const unsigned char rfc1042_header[6];
6125extern const unsigned char bridge_tunnel_header[6];
6126
6127/**
6128 * ieee80211_get_hdrlen_from_skb - get header length from data
6129 *
6130 * @skb: the frame
6131 *
6132 * Given an skb with a raw 802.11 header at the data pointer this function
6133 * returns the 802.11 header length.
6134 *
6135 * Return: The 802.11 header length in bytes (not including encryption
6136 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
6137 * 802.11 header.
6138 */
6139unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
6140
6141/**
6142 * ieee80211_hdrlen - get header length in bytes from frame control
6143 * @fc: frame control field in little-endian format
6144 * Return: The header length in bytes.
6145 */
6146unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
6147
6148/**
6149 * ieee80211_get_mesh_hdrlen - get mesh extension header length
6150 * @meshhdr: the mesh extension header, only the flags field
6151 * (first byte) will be accessed
6152 * Return: The length of the extension header, which is always at
6153 * least 6 bytes and at most 18 if address 5 and 6 are present.
6154 */
6155unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
6156
6157/**
6158 * DOC: Data path helpers
6159 *
6160 * In addition to generic utilities, cfg80211 also offers
6161 * functions that help implement the data path for devices
6162 * that do not do the 802.11/802.3 conversion on the device.
6163 */
6164
6165/**
6166 * ieee80211_data_to_8023_exthdr - convert an 802.11 data frame to 802.3
6167 * @skb: the 802.11 data frame
6168 * @ehdr: pointer to a &struct ethhdr that will get the header, instead
6169 * of it being pushed into the SKB
6170 * @addr: the device MAC address
6171 * @iftype: the virtual interface type
6172 * @data_offset: offset of payload after the 802.11 header
6173 * @is_amsdu: true if the 802.11 header is A-MSDU
6174 * Return: 0 on success. Non-zero on error.
6175 */
6176int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
6177 const u8 *addr, enum nl80211_iftype iftype,
6178 u8 data_offset, bool is_amsdu);
6179
6180/**
6181 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
6182 * @skb: the 802.11 data frame
6183 * @addr: the device MAC address
6184 * @iftype: the virtual interface type
6185 * Return: 0 on success. Non-zero on error.
6186 */
6187static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
6188 enum nl80211_iftype iftype)
6189{
6190 return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype, 0, false);
6191}
6192
6193/**
6194 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
6195 *
6196 * Decode an IEEE 802.11 A-MSDU and convert it to a list of 802.3 frames.
6197 * The @list will be empty if the decode fails. The @skb must be fully
6198 * header-less before being passed in here; it is freed in this function.
6199 *
6200 * @skb: The input A-MSDU frame without any headers.
6201 * @list: The output list of 802.3 frames. It must be allocated and
6202 * initialized by the caller.
6203 * @addr: The device MAC address.
6204 * @iftype: The device interface type.
6205 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
6206 * @check_da: DA to check in the inner ethernet header, or NULL
6207 * @check_sa: SA to check in the inner ethernet header, or NULL
6208 */
6209void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
6210 const u8 *addr, enum nl80211_iftype iftype,
6211 const unsigned int extra_headroom,
6212 const u8 *check_da, const u8 *check_sa);
6213
6214/**
6215 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
6216 * @skb: the data frame
6217 * @qos_map: Interworking QoS mapping or %NULL if not in use
6218 * Return: The 802.1p/1d tag.
6219 */
6220unsigned int cfg80211_classify8021d(struct sk_buff *skb,
6221 struct cfg80211_qos_map *qos_map);
6222
6223/**
6224 * cfg80211_find_elem_match - match information element and byte array in data
6225 *
6226 * @eid: element ID
6227 * @ies: data consisting of IEs
6228 * @len: length of data
6229 * @match: byte array to match
6230 * @match_len: number of bytes in the match array
6231 * @match_offset: offset in the IE data where the byte array should match.
6232 * Note the difference to cfg80211_find_ie_match() which considers
6233 * the offset to start from the element ID byte, but here we take
6234 * the data portion instead.
6235 *
6236 * Return: %NULL if the element ID could not be found or if
6237 * the element is invalid (claims to be longer than the given
6238 * data) or if the byte array doesn't match; otherwise return the
6239 * requested element struct.
6240 *
6241 * Note: There are no checks on the element length other than
6242 * having to fit into the given data and being large enough for the
6243 * byte array to match.
6244 */
6245const struct element *
6246cfg80211_find_elem_match(u8 eid, const u8 *ies, unsigned int len,
6247 const u8 *match, unsigned int match_len,
6248 unsigned int match_offset);
6249
6250/**
6251 * cfg80211_find_ie_match - match information element and byte array in data
6252 *
6253 * @eid: element ID
6254 * @ies: data consisting of IEs
6255 * @len: length of data
6256 * @match: byte array to match
6257 * @match_len: number of bytes in the match array
6258 * @match_offset: offset in the IE where the byte array should match.
6259 * If match_len is zero, this must also be set to zero.
6260 * Otherwise this must be set to 2 or more, because the first
6261 * byte is the element id, which is already compared to eid, and
6262 * the second byte is the IE length.
6263 *
6264 * Return: %NULL if the element ID could not be found or if
6265 * the element is invalid (claims to be longer than the given
6266 * data) or if the byte array doesn't match, or a pointer to the first
6267 * byte of the requested element, that is the byte containing the
6268 * element ID.
6269 *
6270 * Note: There are no checks on the element length other than
6271 * having to fit into the given data and being large enough for the
6272 * byte array to match.
6273 */
6274static inline const u8 *
6275cfg80211_find_ie_match(u8 eid, const u8 *ies, unsigned int len,
6276 const u8 *match, unsigned int match_len,
6277 unsigned int match_offset)
6278{
6279 /* match_offset can't be smaller than 2, unless match_len is
6280 * zero, in which case match_offset must be zero as well.
6281 */
6282 if (WARN_ON((match_len && match_offset < 2) ||
6283 (!match_len && match_offset)))
6284 return NULL;
6285
6286 return (const void *)cfg80211_find_elem_match(eid, ies, len,
6287 match, match_len,
6288 match_offset ?
6289 match_offset - 2 : 0);
6290}
6291
6292/**
6293 * cfg80211_find_elem - find information element in data
6294 *
6295 * @eid: element ID
6296 * @ies: data consisting of IEs
6297 * @len: length of data
6298 *
6299 * Return: %NULL if the element ID could not be found or if
6300 * the element is invalid (claims to be longer than the given
6301 * data) or if the byte array doesn't match; otherwise return the
6302 * requested element struct.
6303 *
6304 * Note: There are no checks on the element length other than
6305 * having to fit into the given data.
6306 */
6307static inline const struct element *
6308cfg80211_find_elem(u8 eid, const u8 *ies, int len)
6309{
6310 return cfg80211_find_elem_match(eid, ies, len, NULL, 0, 0);
6311}
6312
6313/**
6314 * cfg80211_find_ie - find information element in data
6315 *
6316 * @eid: element ID
6317 * @ies: data consisting of IEs
6318 * @len: length of data
6319 *
6320 * Return: %NULL if the element ID could not be found or if
6321 * the element is invalid (claims to be longer than the given
6322 * data), or a pointer to the first byte of the requested
6323 * element, that is the byte containing the element ID.
6324 *
6325 * Note: There are no checks on the element length other than
6326 * having to fit into the given data.
6327 */
6328static inline const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
6329{
6330 return cfg80211_find_ie_match(eid, ies, len, NULL, 0, 0);
6331}
6332
6333/**
6334 * cfg80211_find_ext_elem - find information element with EID Extension in data
6335 *
6336 * @ext_eid: element ID Extension
6337 * @ies: data consisting of IEs
6338 * @len: length of data
6339 *
6340 * Return: %NULL if the etended element could not be found or if
6341 * the element is invalid (claims to be longer than the given
6342 * data) or if the byte array doesn't match; otherwise return the
6343 * requested element struct.
6344 *
6345 * Note: There are no checks on the element length other than
6346 * having to fit into the given data.
6347 */
6348static inline const struct element *
6349cfg80211_find_ext_elem(u8 ext_eid, const u8 *ies, int len)
6350{
6351 return cfg80211_find_elem_match(WLAN_EID_EXTENSION, ies, len,
6352 &ext_eid, 1, 0);
6353}
6354
6355/**
6356 * cfg80211_find_ext_ie - find information element with EID Extension in data
6357 *
6358 * @ext_eid: element ID Extension
6359 * @ies: data consisting of IEs
6360 * @len: length of data
6361 *
6362 * Return: %NULL if the extended element ID could not be found or if
6363 * the element is invalid (claims to be longer than the given
6364 * data), or a pointer to the first byte of the requested
6365 * element, that is the byte containing the element ID.
6366 *
6367 * Note: There are no checks on the element length other than
6368 * having to fit into the given data.
6369 */
6370static inline const u8 *cfg80211_find_ext_ie(u8 ext_eid, const u8 *ies, int len)
6371{
6372 return cfg80211_find_ie_match(WLAN_EID_EXTENSION, ies, len,
6373 &ext_eid, 1, 2);
6374}
6375
6376/**
6377 * cfg80211_find_vendor_elem - find vendor specific information element in data
6378 *
6379 * @oui: vendor OUI
6380 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any
6381 * @ies: data consisting of IEs
6382 * @len: length of data
6383 *
6384 * Return: %NULL if the vendor specific element ID could not be found or if the
6385 * element is invalid (claims to be longer than the given data); otherwise
6386 * return the element structure for the requested element.
6387 *
6388 * Note: There are no checks on the element length other than having to fit into
6389 * the given data.
6390 */
6391const struct element *cfg80211_find_vendor_elem(unsigned int oui, int oui_type,
6392 const u8 *ies,
6393 unsigned int len);
6394
6395/**
6396 * cfg80211_find_vendor_ie - find vendor specific information element in data
6397 *
6398 * @oui: vendor OUI
6399 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any
6400 * @ies: data consisting of IEs
6401 * @len: length of data
6402 *
6403 * Return: %NULL if the vendor specific element ID could not be found or if the
6404 * element is invalid (claims to be longer than the given data), or a pointer to
6405 * the first byte of the requested element, that is the byte containing the
6406 * element ID.
6407 *
6408 * Note: There are no checks on the element length other than having to fit into
6409 * the given data.
6410 */
6411static inline const u8 *
6412cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
6413 const u8 *ies, unsigned int len)
6414{
6415 return (const void *)cfg80211_find_vendor_elem(oui, oui_type, ies, len);
6416}
6417
6418/**
6419 * cfg80211_send_layer2_update - send layer 2 update frame
6420 *
6421 * @dev: network device
6422 * @addr: STA MAC address
6423 *
6424 * Wireless drivers can use this function to update forwarding tables in bridge
6425 * devices upon STA association.
6426 */
6427void cfg80211_send_layer2_update(struct net_device *dev, const u8 *addr);
6428
6429/**
6430 * DOC: Regulatory enforcement infrastructure
6431 *
6432 * TODO
6433 */
6434
6435/**
6436 * regulatory_hint - driver hint to the wireless core a regulatory domain
6437 * @wiphy: the wireless device giving the hint (used only for reporting
6438 * conflicts)
6439 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
6440 * should be in. If @rd is set this should be NULL. Note that if you
6441 * set this to NULL you should still set rd->alpha2 to some accepted
6442 * alpha2.
6443 *
6444 * Wireless drivers can use this function to hint to the wireless core
6445 * what it believes should be the current regulatory domain by
6446 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
6447 * domain should be in or by providing a completely build regulatory domain.
6448 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
6449 * for a regulatory domain structure for the respective country.
6450 *
6451 * The wiphy must have been registered to cfg80211 prior to this call.
6452 * For cfg80211 drivers this means you must first use wiphy_register(),
6453 * for mac80211 drivers you must first use ieee80211_register_hw().
6454 *
6455 * Drivers should check the return value, its possible you can get
6456 * an -ENOMEM.
6457 *
6458 * Return: 0 on success. -ENOMEM.
6459 */
6460int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
6461
6462/**
6463 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
6464 * @wiphy: the wireless device we want to process the regulatory domain on
6465 * @rd: the regulatory domain informatoin to use for this wiphy
6466 *
6467 * Set the regulatory domain information for self-managed wiphys, only they
6468 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
6469 * information.
6470 *
6471 * Return: 0 on success. -EINVAL, -EPERM
6472 */
6473int regulatory_set_wiphy_regd(struct wiphy *wiphy,
6474 struct ieee80211_regdomain *rd);
6475
6476/**
6477 * regulatory_set_wiphy_regd_sync - set regdom for self-managed drivers
6478 * @wiphy: the wireless device we want to process the regulatory domain on
6479 * @rd: the regulatory domain information to use for this wiphy
6480 *
6481 * This functions requires the RTNL and the wiphy mutex to be held and
6482 * applies the new regdomain synchronously to this wiphy. For more details
6483 * see regulatory_set_wiphy_regd().
6484 *
6485 * Return: 0 on success. -EINVAL, -EPERM
6486 */
6487int regulatory_set_wiphy_regd_sync(struct wiphy *wiphy,
6488 struct ieee80211_regdomain *rd);
6489
6490/**
6491 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
6492 * @wiphy: the wireless device we want to process the regulatory domain on
6493 * @regd: the custom regulatory domain to use for this wiphy
6494 *
6495 * Drivers can sometimes have custom regulatory domains which do not apply
6496 * to a specific country. Drivers can use this to apply such custom regulatory
6497 * domains. This routine must be called prior to wiphy registration. The
6498 * custom regulatory domain will be trusted completely and as such previous
6499 * default channel settings will be disregarded. If no rule is found for a
6500 * channel on the regulatory domain the channel will be disabled.
6501 * Drivers using this for a wiphy should also set the wiphy flag
6502 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
6503 * that called this helper.
6504 */
6505void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
6506 const struct ieee80211_regdomain *regd);
6507
6508/**
6509 * freq_reg_info - get regulatory information for the given frequency
6510 * @wiphy: the wiphy for which we want to process this rule for
6511 * @center_freq: Frequency in KHz for which we want regulatory information for
6512 *
6513 * Use this function to get the regulatory rule for a specific frequency on
6514 * a given wireless device. If the device has a specific regulatory domain
6515 * it wants to follow we respect that unless a country IE has been received
6516 * and processed already.
6517 *
6518 * Return: A valid pointer, or, when an error occurs, for example if no rule
6519 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
6520 * check and PTR_ERR() to obtain the numeric return value. The numeric return
6521 * value will be -ERANGE if we determine the given center_freq does not even
6522 * have a regulatory rule for a frequency range in the center_freq's band.
6523 * See freq_in_rule_band() for our current definition of a band -- this is
6524 * purely subjective and right now it's 802.11 specific.
6525 */
6526const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
6527 u32 center_freq);
6528
6529/**
6530 * reg_initiator_name - map regulatory request initiator enum to name
6531 * @initiator: the regulatory request initiator
6532 *
6533 * You can use this to map the regulatory request initiator enum to a
6534 * proper string representation.
6535 */
6536const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
6537
6538/**
6539 * regulatory_pre_cac_allowed - check if pre-CAC allowed in the current regdom
6540 * @wiphy: wiphy for which pre-CAC capability is checked.
6541 *
6542 * Pre-CAC is allowed only in some regdomains (notable ETSI).
6543 */
6544bool regulatory_pre_cac_allowed(struct wiphy *wiphy);
6545
6546/**
6547 * DOC: Internal regulatory db functions
6548 *
6549 */
6550
6551/**
6552 * reg_query_regdb_wmm - Query internal regulatory db for wmm rule
6553 * Regulatory self-managed driver can use it to proactively
6554 *
6555 * @alpha2: the ISO/IEC 3166 alpha2 wmm rule to be queried.
6556 * @freq: the freqency(in MHz) to be queried.
6557 * @rule: pointer to store the wmm rule from the regulatory db.
6558 *
6559 * Self-managed wireless drivers can use this function to query
6560 * the internal regulatory database to check whether the given
6561 * ISO/IEC 3166 alpha2 country and freq have wmm rule limitations.
6562 *
6563 * Drivers should check the return value, its possible you can get
6564 * an -ENODATA.
6565 *
6566 * Return: 0 on success. -ENODATA.
6567 */
6568int reg_query_regdb_wmm(char *alpha2, int freq,
6569 struct ieee80211_reg_rule *rule);
6570
6571/*
6572 * callbacks for asynchronous cfg80211 methods, notification
6573 * functions and BSS handling helpers
6574 */
6575
6576/**
6577 * cfg80211_scan_done - notify that scan finished
6578 *
6579 * @request: the corresponding scan request
6580 * @info: information about the completed scan
6581 */
6582void cfg80211_scan_done(struct cfg80211_scan_request *request,
6583 struct cfg80211_scan_info *info);
6584
6585/**
6586 * cfg80211_sched_scan_results - notify that new scan results are available
6587 *
6588 * @wiphy: the wiphy which got scheduled scan results
6589 * @reqid: identifier for the related scheduled scan request
6590 */
6591void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid);
6592
6593/**
6594 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
6595 *
6596 * @wiphy: the wiphy on which the scheduled scan stopped
6597 * @reqid: identifier for the related scheduled scan request
6598 *
6599 * The driver can call this function to inform cfg80211 that the
6600 * scheduled scan had to be stopped, for whatever reason. The driver
6601 * is then called back via the sched_scan_stop operation when done.
6602 */
6603void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid);
6604
6605/**
6606 * cfg80211_sched_scan_stopped_locked - notify that the scheduled scan has stopped
6607 *
6608 * @wiphy: the wiphy on which the scheduled scan stopped
6609 * @reqid: identifier for the related scheduled scan request
6610 *
6611 * The driver can call this function to inform cfg80211 that the
6612 * scheduled scan had to be stopped, for whatever reason. The driver
6613 * is then called back via the sched_scan_stop operation when done.
6614 * This function should be called with the wiphy mutex held.
6615 */
6616void cfg80211_sched_scan_stopped_locked(struct wiphy *wiphy, u64 reqid);
6617
6618/**
6619 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame
6620 * @wiphy: the wiphy reporting the BSS
6621 * @data: the BSS metadata
6622 * @mgmt: the management frame (probe response or beacon)
6623 * @len: length of the management frame
6624 * @gfp: context flags
6625 *
6626 * This informs cfg80211 that BSS information was found and
6627 * the BSS should be updated/added.
6628 *
6629 * Return: A referenced struct, must be released with cfg80211_put_bss()!
6630 * Or %NULL on error.
6631 */
6632struct cfg80211_bss * __must_check
6633cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
6634 struct cfg80211_inform_bss *data,
6635 struct ieee80211_mgmt *mgmt, size_t len,
6636 gfp_t gfp);
6637
6638static inline struct cfg80211_bss * __must_check
6639cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
6640 struct ieee80211_channel *rx_channel,
6641 enum nl80211_bss_scan_width scan_width,
6642 struct ieee80211_mgmt *mgmt, size_t len,
6643 s32 signal, gfp_t gfp)
6644{
6645 struct cfg80211_inform_bss data = {
6646 .chan = rx_channel,
6647 .scan_width = scan_width,
6648 .signal = signal,
6649 };
6650
6651 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
6652}
6653
6654static inline struct cfg80211_bss * __must_check
6655cfg80211_inform_bss_frame(struct wiphy *wiphy,
6656 struct ieee80211_channel *rx_channel,
6657 struct ieee80211_mgmt *mgmt, size_t len,
6658 s32 signal, gfp_t gfp)
6659{
6660 struct cfg80211_inform_bss data = {
6661 .chan = rx_channel,
6662 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
6663 .signal = signal,
6664 };
6665
6666 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
6667}
6668
6669/**
6670 * cfg80211_gen_new_bssid - generate a nontransmitted BSSID for multi-BSSID
6671 * @bssid: transmitter BSSID
6672 * @max_bssid: max BSSID indicator, taken from Multiple BSSID element
6673 * @mbssid_index: BSSID index, taken from Multiple BSSID index element
6674 * @new_bssid: calculated nontransmitted BSSID
6675 */
6676static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid,
6677 u8 mbssid_index, u8 *new_bssid)
6678{
6679 u64 bssid_u64 = ether_addr_to_u64(bssid);
6680 u64 mask = GENMASK_ULL(max_bssid - 1, 0);
6681 u64 new_bssid_u64;
6682
6683 new_bssid_u64 = bssid_u64 & ~mask;
6684
6685 new_bssid_u64 |= ((bssid_u64 & mask) + mbssid_index) & mask;
6686
6687 u64_to_ether_addr(new_bssid_u64, new_bssid);
6688}
6689
6690/**
6691 * cfg80211_is_element_inherited - returns if element ID should be inherited
6692 * @element: element to check
6693 * @non_inherit_element: non inheritance element
6694 */
6695bool cfg80211_is_element_inherited(const struct element *element,
6696 const struct element *non_inherit_element);
6697
6698/**
6699 * cfg80211_merge_profile - merges a MBSSID profile if it is split between IEs
6700 * @ie: ies
6701 * @ielen: length of IEs
6702 * @mbssid_elem: current MBSSID element
6703 * @sub_elem: current MBSSID subelement (profile)
6704 * @merged_ie: location of the merged profile
6705 * @max_copy_len: max merged profile length
6706 */
6707size_t cfg80211_merge_profile(const u8 *ie, size_t ielen,
6708 const struct element *mbssid_elem,
6709 const struct element *sub_elem,
6710 u8 *merged_ie, size_t max_copy_len);
6711
6712/**
6713 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
6714 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
6715 * from a beacon or probe response
6716 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
6717 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
6718 */
6719enum cfg80211_bss_frame_type {
6720 CFG80211_BSS_FTYPE_UNKNOWN,
6721 CFG80211_BSS_FTYPE_BEACON,
6722 CFG80211_BSS_FTYPE_PRESP,
6723};
6724
6725/**
6726 * cfg80211_get_ies_channel_number - returns the channel number from ies
6727 * @ie: IEs
6728 * @ielen: length of IEs
6729 * @band: enum nl80211_band of the channel
6730 * @ftype: frame type
6731 *
6732 * Returns the channel number, or -1 if none could be determined.
6733 */
6734int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen,
6735 enum nl80211_band band,
6736 enum cfg80211_bss_frame_type ftype);
6737
6738/**
6739 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS
6740 *
6741 * @wiphy: the wiphy reporting the BSS
6742 * @data: the BSS metadata
6743 * @ftype: frame type (if known)
6744 * @bssid: the BSSID of the BSS
6745 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
6746 * @capability: the capability field sent by the peer
6747 * @beacon_interval: the beacon interval announced by the peer
6748 * @ie: additional IEs sent by the peer
6749 * @ielen: length of the additional IEs
6750 * @gfp: context flags
6751 *
6752 * This informs cfg80211 that BSS information was found and
6753 * the BSS should be updated/added.
6754 *
6755 * Return: A referenced struct, must be released with cfg80211_put_bss()!
6756 * Or %NULL on error.
6757 */
6758struct cfg80211_bss * __must_check
6759cfg80211_inform_bss_data(struct wiphy *wiphy,
6760 struct cfg80211_inform_bss *data,
6761 enum cfg80211_bss_frame_type ftype,
6762 const u8 *bssid, u64 tsf, u16 capability,
6763 u16 beacon_interval, const u8 *ie, size_t ielen,
6764 gfp_t gfp);
6765
6766static inline struct cfg80211_bss * __must_check
6767cfg80211_inform_bss_width(struct wiphy *wiphy,
6768 struct ieee80211_channel *rx_channel,
6769 enum nl80211_bss_scan_width scan_width,
6770 enum cfg80211_bss_frame_type ftype,
6771 const u8 *bssid, u64 tsf, u16 capability,
6772 u16 beacon_interval, const u8 *ie, size_t ielen,
6773 s32 signal, gfp_t gfp)
6774{
6775 struct cfg80211_inform_bss data = {
6776 .chan = rx_channel,
6777 .scan_width = scan_width,
6778 .signal = signal,
6779 };
6780
6781 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
6782 capability, beacon_interval, ie, ielen,
6783 gfp);
6784}
6785
6786static inline struct cfg80211_bss * __must_check
6787cfg80211_inform_bss(struct wiphy *wiphy,
6788 struct ieee80211_channel *rx_channel,
6789 enum cfg80211_bss_frame_type ftype,
6790 const u8 *bssid, u64 tsf, u16 capability,
6791 u16 beacon_interval, const u8 *ie, size_t ielen,
6792 s32 signal, gfp_t gfp)
6793{
6794 struct cfg80211_inform_bss data = {
6795 .chan = rx_channel,
6796 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
6797 .signal = signal,
6798 };
6799
6800 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
6801 capability, beacon_interval, ie, ielen,
6802 gfp);
6803}
6804
6805/**
6806 * cfg80211_get_bss - get a BSS reference
6807 * @wiphy: the wiphy this BSS struct belongs to
6808 * @channel: the channel to search on (or %NULL)
6809 * @bssid: the desired BSSID (or %NULL)
6810 * @ssid: the desired SSID (or %NULL)
6811 * @ssid_len: length of the SSID (or 0)
6812 * @bss_type: type of BSS, see &enum ieee80211_bss_type
6813 * @privacy: privacy filter, see &enum ieee80211_privacy
6814 */
6815struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
6816 struct ieee80211_channel *channel,
6817 const u8 *bssid,
6818 const u8 *ssid, size_t ssid_len,
6819 enum ieee80211_bss_type bss_type,
6820 enum ieee80211_privacy privacy);
6821static inline struct cfg80211_bss *
6822cfg80211_get_ibss(struct wiphy *wiphy,
6823 struct ieee80211_channel *channel,
6824 const u8 *ssid, size_t ssid_len)
6825{
6826 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
6827 IEEE80211_BSS_TYPE_IBSS,
6828 IEEE80211_PRIVACY_ANY);
6829}
6830
6831/**
6832 * cfg80211_ref_bss - reference BSS struct
6833 * @wiphy: the wiphy this BSS struct belongs to
6834 * @bss: the BSS struct to reference
6835 *
6836 * Increments the refcount of the given BSS struct.
6837 */
6838void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
6839
6840/**
6841 * cfg80211_put_bss - unref BSS struct
6842 * @wiphy: the wiphy this BSS struct belongs to
6843 * @bss: the BSS struct
6844 *
6845 * Decrements the refcount of the given BSS struct.
6846 */
6847void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
6848
6849/**
6850 * cfg80211_unlink_bss - unlink BSS from internal data structures
6851 * @wiphy: the wiphy
6852 * @bss: the bss to remove
6853 *
6854 * This function removes the given BSS from the internal data structures
6855 * thereby making it no longer show up in scan results etc. Use this
6856 * function when you detect a BSS is gone. Normally BSSes will also time
6857 * out, so it is not necessary to use this function at all.
6858 */
6859void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
6860
6861/**
6862 * cfg80211_bss_iter - iterate all BSS entries
6863 *
6864 * This function iterates over the BSS entries associated with the given wiphy
6865 * and calls the callback for the iterated BSS. The iterator function is not
6866 * allowed to call functions that might modify the internal state of the BSS DB.
6867 *
6868 * @wiphy: the wiphy
6869 * @chandef: if given, the iterator function will be called only if the channel
6870 * of the currently iterated BSS is a subset of the given channel.
6871 * @iter: the iterator function to call
6872 * @iter_data: an argument to the iterator function
6873 */
6874void cfg80211_bss_iter(struct wiphy *wiphy,
6875 struct cfg80211_chan_def *chandef,
6876 void (*iter)(struct wiphy *wiphy,
6877 struct cfg80211_bss *bss,
6878 void *data),
6879 void *iter_data);
6880
6881static inline enum nl80211_bss_scan_width
6882cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef)
6883{
6884 switch (chandef->width) {
6885 case NL80211_CHAN_WIDTH_5:
6886 return NL80211_BSS_CHAN_WIDTH_5;
6887 case NL80211_CHAN_WIDTH_10:
6888 return NL80211_BSS_CHAN_WIDTH_10;
6889 default:
6890 return NL80211_BSS_CHAN_WIDTH_20;
6891 }
6892}
6893
6894/**
6895 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
6896 * @dev: network device
6897 * @buf: authentication frame (header + body)
6898 * @len: length of the frame data
6899 *
6900 * This function is called whenever an authentication, disassociation or
6901 * deauthentication frame has been received and processed in station mode.
6902 * After being asked to authenticate via cfg80211_ops::auth() the driver must
6903 * call either this function or cfg80211_auth_timeout().
6904 * After being asked to associate via cfg80211_ops::assoc() the driver must
6905 * call either this function or cfg80211_auth_timeout().
6906 * While connected, the driver must calls this for received and processed
6907 * disassociation and deauthentication frames. If the frame couldn't be used
6908 * because it was unprotected, the driver must call the function
6909 * cfg80211_rx_unprot_mlme_mgmt() instead.
6910 *
6911 * This function may sleep. The caller must hold the corresponding wdev's mutex.
6912 */
6913void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
6914
6915/**
6916 * cfg80211_auth_timeout - notification of timed out authentication
6917 * @dev: network device
6918 * @addr: The MAC address of the device with which the authentication timed out
6919 *
6920 * This function may sleep. The caller must hold the corresponding wdev's
6921 * mutex.
6922 */
6923void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
6924
6925/**
6926 * struct cfg80211_rx_assoc_resp - association response data
6927 * @bss: the BSS that association was requested with, ownership of the pointer
6928 * moves to cfg80211 in the call to cfg80211_rx_assoc_resp()
6929 * @buf: (Re)Association Response frame (header + body)
6930 * @len: length of the frame data
6931 * @uapsd_queues: bitmap of queues configured for uapsd. Same format
6932 * as the AC bitmap in the QoS info field
6933 * @req_ies: information elements from the (Re)Association Request frame
6934 * @req_ies_len: length of req_ies data
6935 * @ap_mld_addr: AP MLD address (in case of MLO)
6936 * @links: per-link information indexed by link ID, use links[0] for
6937 * non-MLO connections
6938 * @links.status: Set this (along with a BSS pointer) for links that
6939 * were rejected by the AP.
6940 */
6941struct cfg80211_rx_assoc_resp {
6942 const u8 *buf;
6943 size_t len;
6944 const u8 *req_ies;
6945 size_t req_ies_len;
6946 int uapsd_queues;
6947 const u8 *ap_mld_addr;
6948 struct {
6949 const u8 *addr;
6950 struct cfg80211_bss *bss;
6951 u16 status;
6952 } links[IEEE80211_MLD_MAX_NUM_LINKS];
6953};
6954
6955/**
6956 * cfg80211_rx_assoc_resp - notification of processed association response
6957 * @dev: network device
6958 * @data: association response data, &struct cfg80211_rx_assoc_resp
6959 *
6960 * After being asked to associate via cfg80211_ops::assoc() the driver must
6961 * call either this function or cfg80211_auth_timeout().
6962 *
6963 * This function may sleep. The caller must hold the corresponding wdev's mutex.
6964 */
6965void cfg80211_rx_assoc_resp(struct net_device *dev,
6966 struct cfg80211_rx_assoc_resp *data);
6967
6968/**
6969 * struct cfg80211_assoc_failure - association failure data
6970 * @ap_mld_addr: AP MLD address, or %NULL
6971 * @bss: list of BSSes, must use entry 0 for non-MLO connections
6972 * (@ap_mld_addr is %NULL)
6973 * @timeout: indicates the association failed due to timeout, otherwise
6974 * the association was abandoned for a reason reported through some
6975 * other API (e.g. deauth RX)
6976 */
6977struct cfg80211_assoc_failure {
6978 const u8 *ap_mld_addr;
6979 struct cfg80211_bss *bss[IEEE80211_MLD_MAX_NUM_LINKS];
6980 bool timeout;
6981};
6982
6983/**
6984 * cfg80211_assoc_failure - notification of association failure
6985 * @dev: network device
6986 * @data: data describing the association failure
6987 *
6988 * This function may sleep. The caller must hold the corresponding wdev's mutex.
6989 */
6990void cfg80211_assoc_failure(struct net_device *dev,
6991 struct cfg80211_assoc_failure *data);
6992
6993/**
6994 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
6995 * @dev: network device
6996 * @buf: 802.11 frame (header + body)
6997 * @len: length of the frame data
6998 * @reconnect: immediate reconnect is desired (include the nl80211 attribute)
6999 *
7000 * This function is called whenever deauthentication has been processed in
7001 * station mode. This includes both received deauthentication frames and
7002 * locally generated ones. This function may sleep. The caller must hold the
7003 * corresponding wdev's mutex.
7004 */
7005void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len,
7006 bool reconnect);
7007
7008/**
7009 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
7010 * @dev: network device
7011 * @buf: received management frame (header + body)
7012 * @len: length of the frame data
7013 *
7014 * This function is called whenever a received deauthentication or dissassoc
7015 * frame has been dropped in station mode because of MFP being used but the
7016 * frame was not protected. This is also used to notify reception of a Beacon
7017 * frame that was dropped because it did not include a valid MME MIC while
7018 * beacon protection was enabled (BIGTK configured in station mode).
7019 *
7020 * This function may sleep.
7021 */
7022void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
7023 const u8 *buf, size_t len);
7024
7025/**
7026 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
7027 * @dev: network device
7028 * @addr: The source MAC address of the frame
7029 * @key_type: The key type that the received frame used
7030 * @key_id: Key identifier (0..3). Can be -1 if missing.
7031 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
7032 * @gfp: allocation flags
7033 *
7034 * This function is called whenever the local MAC detects a MIC failure in a
7035 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
7036 * primitive.
7037 */
7038void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
7039 enum nl80211_key_type key_type, int key_id,
7040 const u8 *tsc, gfp_t gfp);
7041
7042/**
7043 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
7044 *
7045 * @dev: network device
7046 * @bssid: the BSSID of the IBSS joined
7047 * @channel: the channel of the IBSS joined
7048 * @gfp: allocation flags
7049 *
7050 * This function notifies cfg80211 that the device joined an IBSS or
7051 * switched to a different BSSID. Before this function can be called,
7052 * either a beacon has to have been received from the IBSS, or one of
7053 * the cfg80211_inform_bss{,_frame} functions must have been called
7054 * with the locally generated beacon -- this guarantees that there is
7055 * always a scan result for this IBSS. cfg80211 will handle the rest.
7056 */
7057void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
7058 struct ieee80211_channel *channel, gfp_t gfp);
7059
7060/**
7061 * cfg80211_notify_new_peer_candidate - notify cfg80211 of a new mesh peer
7062 * candidate
7063 *
7064 * @dev: network device
7065 * @macaddr: the MAC address of the new candidate
7066 * @ie: information elements advertised by the peer candidate
7067 * @ie_len: length of the information elements buffer
7068 * @sig_dbm: signal level in dBm
7069 * @gfp: allocation flags
7070 *
7071 * This function notifies cfg80211 that the mesh peer candidate has been
7072 * detected, most likely via a beacon or, less likely, via a probe response.
7073 * cfg80211 then sends a notification to userspace.
7074 */
7075void cfg80211_notify_new_peer_candidate(struct net_device *dev,
7076 const u8 *macaddr, const u8 *ie, u8 ie_len,
7077 int sig_dbm, gfp_t gfp);
7078
7079/**
7080 * DOC: RFkill integration
7081 *
7082 * RFkill integration in cfg80211 is almost invisible to drivers,
7083 * as cfg80211 automatically registers an rfkill instance for each
7084 * wireless device it knows about. Soft kill is also translated
7085 * into disconnecting and turning all interfaces off, drivers are
7086 * expected to turn off the device when all interfaces are down.
7087 *
7088 * However, devices may have a hard RFkill line, in which case they
7089 * also need to interact with the rfkill subsystem, via cfg80211.
7090 * They can do this with a few helper functions documented here.
7091 */
7092
7093/**
7094 * wiphy_rfkill_set_hw_state_reason - notify cfg80211 about hw block state
7095 * @wiphy: the wiphy
7096 * @blocked: block status
7097 * @reason: one of reasons in &enum rfkill_hard_block_reasons
7098 */
7099void wiphy_rfkill_set_hw_state_reason(struct wiphy *wiphy, bool blocked,
7100 enum rfkill_hard_block_reasons reason);
7101
7102static inline void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
7103{
7104 wiphy_rfkill_set_hw_state_reason(wiphy, blocked,
7105 RFKILL_HARD_BLOCK_SIGNAL);
7106}
7107
7108/**
7109 * wiphy_rfkill_start_polling - start polling rfkill
7110 * @wiphy: the wiphy
7111 */
7112void wiphy_rfkill_start_polling(struct wiphy *wiphy);
7113
7114/**
7115 * wiphy_rfkill_stop_polling - stop polling rfkill
7116 * @wiphy: the wiphy
7117 */
7118static inline void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
7119{
7120 rfkill_pause_polling(wiphy->rfkill);
7121}
7122
7123/**
7124 * DOC: Vendor commands
7125 *
7126 * Occasionally, there are special protocol or firmware features that
7127 * can't be implemented very openly. For this and similar cases, the
7128 * vendor command functionality allows implementing the features with
7129 * (typically closed-source) userspace and firmware, using nl80211 as
7130 * the configuration mechanism.
7131 *
7132 * A driver supporting vendor commands must register them as an array
7133 * in struct wiphy, with handlers for each one, each command has an
7134 * OUI and sub command ID to identify it.
7135 *
7136 * Note that this feature should not be (ab)used to implement protocol
7137 * features that could openly be shared across drivers. In particular,
7138 * it must never be required to use vendor commands to implement any
7139 * "normal" functionality that higher-level userspace like connection
7140 * managers etc. need.
7141 */
7142
7143struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
7144 enum nl80211_commands cmd,
7145 enum nl80211_attrs attr,
7146 int approxlen);
7147
7148struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7149 struct wireless_dev *wdev,
7150 enum nl80211_commands cmd,
7151 enum nl80211_attrs attr,
7152 unsigned int portid,
7153 int vendor_event_idx,
7154 int approxlen, gfp_t gfp);
7155
7156void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp);
7157
7158/**
7159 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
7160 * @wiphy: the wiphy
7161 * @approxlen: an upper bound of the length of the data that will
7162 * be put into the skb
7163 *
7164 * This function allocates and pre-fills an skb for a reply to
7165 * a vendor command. Since it is intended for a reply, calling
7166 * it outside of a vendor command's doit() operation is invalid.
7167 *
7168 * The returned skb is pre-filled with some identifying data in
7169 * a way that any data that is put into the skb (with skb_put(),
7170 * nla_put() or similar) will end up being within the
7171 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
7172 * with the skb is adding data for the corresponding userspace tool
7173 * which can then read that data out of the vendor data attribute.
7174 * You must not modify the skb in any other way.
7175 *
7176 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
7177 * its error code as the result of the doit() operation.
7178 *
7179 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
7180 */
7181static inline struct sk_buff *
7182cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
7183{
7184 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR,
7185 NL80211_ATTR_VENDOR_DATA, approxlen);
7186}
7187
7188/**
7189 * cfg80211_vendor_cmd_reply - send the reply skb
7190 * @skb: The skb, must have been allocated with
7191 * cfg80211_vendor_cmd_alloc_reply_skb()
7192 *
7193 * Since calling this function will usually be the last thing
7194 * before returning from the vendor command doit() you should
7195 * return the error code. Note that this function consumes the
7196 * skb regardless of the return value.
7197 *
7198 * Return: An error code or 0 on success.
7199 */
7200int cfg80211_vendor_cmd_reply(struct sk_buff *skb);
7201
7202/**
7203 * cfg80211_vendor_cmd_get_sender - get the current sender netlink ID
7204 * @wiphy: the wiphy
7205 *
7206 * Return the current netlink port ID in a vendor command handler.
7207 * Valid to call only there.
7208 */
7209unsigned int cfg80211_vendor_cmd_get_sender(struct wiphy *wiphy);
7210
7211/**
7212 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
7213 * @wiphy: the wiphy
7214 * @wdev: the wireless device
7215 * @event_idx: index of the vendor event in the wiphy's vendor_events
7216 * @approxlen: an upper bound of the length of the data that will
7217 * be put into the skb
7218 * @gfp: allocation flags
7219 *
7220 * This function allocates and pre-fills an skb for an event on the
7221 * vendor-specific multicast group.
7222 *
7223 * If wdev != NULL, both the ifindex and identifier of the specified
7224 * wireless device are added to the event message before the vendor data
7225 * attribute.
7226 *
7227 * When done filling the skb, call cfg80211_vendor_event() with the
7228 * skb to send the event.
7229 *
7230 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
7231 */
7232static inline struct sk_buff *
7233cfg80211_vendor_event_alloc(struct wiphy *wiphy, struct wireless_dev *wdev,
7234 int approxlen, int event_idx, gfp_t gfp)
7235{
7236 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR,
7237 NL80211_ATTR_VENDOR_DATA,
7238 0, event_idx, approxlen, gfp);
7239}
7240
7241/**
7242 * cfg80211_vendor_event_alloc_ucast - alloc unicast vendor-specific event skb
7243 * @wiphy: the wiphy
7244 * @wdev: the wireless device
7245 * @event_idx: index of the vendor event in the wiphy's vendor_events
7246 * @portid: port ID of the receiver
7247 * @approxlen: an upper bound of the length of the data that will
7248 * be put into the skb
7249 * @gfp: allocation flags
7250 *
7251 * This function allocates and pre-fills an skb for an event to send to
7252 * a specific (userland) socket. This socket would previously have been
7253 * obtained by cfg80211_vendor_cmd_get_sender(), and the caller MUST take
7254 * care to register a netlink notifier to see when the socket closes.
7255 *
7256 * If wdev != NULL, both the ifindex and identifier of the specified
7257 * wireless device are added to the event message before the vendor data
7258 * attribute.
7259 *
7260 * When done filling the skb, call cfg80211_vendor_event() with the
7261 * skb to send the event.
7262 *
7263 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
7264 */
7265static inline struct sk_buff *
7266cfg80211_vendor_event_alloc_ucast(struct wiphy *wiphy,
7267 struct wireless_dev *wdev,
7268 unsigned int portid, int approxlen,
7269 int event_idx, gfp_t gfp)
7270{
7271 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR,
7272 NL80211_ATTR_VENDOR_DATA,
7273 portid, event_idx, approxlen, gfp);
7274}
7275
7276/**
7277 * cfg80211_vendor_event - send the event
7278 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
7279 * @gfp: allocation flags
7280 *
7281 * This function sends the given @skb, which must have been allocated
7282 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
7283 */
7284static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp)
7285{
7286 __cfg80211_send_event_skb(skb, gfp);
7287}
7288
7289#ifdef CONFIG_NL80211_TESTMODE
7290/**
7291 * DOC: Test mode
7292 *
7293 * Test mode is a set of utility functions to allow drivers to
7294 * interact with driver-specific tools to aid, for instance,
7295 * factory programming.
7296 *
7297 * This chapter describes how drivers interact with it, for more
7298 * information see the nl80211 book's chapter on it.
7299 */
7300
7301/**
7302 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
7303 * @wiphy: the wiphy
7304 * @approxlen: an upper bound of the length of the data that will
7305 * be put into the skb
7306 *
7307 * This function allocates and pre-fills an skb for a reply to
7308 * the testmode command. Since it is intended for a reply, calling
7309 * it outside of the @testmode_cmd operation is invalid.
7310 *
7311 * The returned skb is pre-filled with the wiphy index and set up in
7312 * a way that any data that is put into the skb (with skb_put(),
7313 * nla_put() or similar) will end up being within the
7314 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
7315 * with the skb is adding data for the corresponding userspace tool
7316 * which can then read that data out of the testdata attribute. You
7317 * must not modify the skb in any other way.
7318 *
7319 * When done, call cfg80211_testmode_reply() with the skb and return
7320 * its error code as the result of the @testmode_cmd operation.
7321 *
7322 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
7323 */
7324static inline struct sk_buff *
7325cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
7326{
7327 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE,
7328 NL80211_ATTR_TESTDATA, approxlen);
7329}
7330
7331/**
7332 * cfg80211_testmode_reply - send the reply skb
7333 * @skb: The skb, must have been allocated with
7334 * cfg80211_testmode_alloc_reply_skb()
7335 *
7336 * Since calling this function will usually be the last thing
7337 * before returning from the @testmode_cmd you should return
7338 * the error code. Note that this function consumes the skb
7339 * regardless of the return value.
7340 *
7341 * Return: An error code or 0 on success.
7342 */
7343static inline int cfg80211_testmode_reply(struct sk_buff *skb)
7344{
7345 return cfg80211_vendor_cmd_reply(skb);
7346}
7347
7348/**
7349 * cfg80211_testmode_alloc_event_skb - allocate testmode event
7350 * @wiphy: the wiphy
7351 * @approxlen: an upper bound of the length of the data that will
7352 * be put into the skb
7353 * @gfp: allocation flags
7354 *
7355 * This function allocates and pre-fills an skb for an event on the
7356 * testmode multicast group.
7357 *
7358 * The returned skb is set up in the same way as with
7359 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
7360 * there, you should simply add data to it that will then end up in the
7361 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
7362 * in any other way.
7363 *
7364 * When done filling the skb, call cfg80211_testmode_event() with the
7365 * skb to send the event.
7366 *
7367 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
7368 */
7369static inline struct sk_buff *
7370cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp)
7371{
7372 return __cfg80211_alloc_event_skb(wiphy, NULL, NL80211_CMD_TESTMODE,
7373 NL80211_ATTR_TESTDATA, 0, -1,
7374 approxlen, gfp);
7375}
7376
7377/**
7378 * cfg80211_testmode_event - send the event
7379 * @skb: The skb, must have been allocated with
7380 * cfg80211_testmode_alloc_event_skb()
7381 * @gfp: allocation flags
7382 *
7383 * This function sends the given @skb, which must have been allocated
7384 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
7385 * consumes it.
7386 */
7387static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
7388{
7389 __cfg80211_send_event_skb(skb, gfp);
7390}
7391
7392#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
7393#define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
7394#else
7395#define CFG80211_TESTMODE_CMD(cmd)
7396#define CFG80211_TESTMODE_DUMP(cmd)
7397#endif
7398
7399/**
7400 * struct cfg80211_fils_resp_params - FILS connection response params
7401 * @kek: KEK derived from a successful FILS connection (may be %NULL)
7402 * @kek_len: Length of @fils_kek in octets
7403 * @update_erp_next_seq_num: Boolean value to specify whether the value in
7404 * @erp_next_seq_num is valid.
7405 * @erp_next_seq_num: The next sequence number to use in ERP message in
7406 * FILS Authentication. This value should be specified irrespective of the
7407 * status for a FILS connection.
7408 * @pmk: A new PMK if derived from a successful FILS connection (may be %NULL).
7409 * @pmk_len: Length of @pmk in octets
7410 * @pmkid: A new PMKID if derived from a successful FILS connection or the PMKID
7411 * used for this FILS connection (may be %NULL).
7412 */
7413struct cfg80211_fils_resp_params {
7414 const u8 *kek;
7415 size_t kek_len;
7416 bool update_erp_next_seq_num;
7417 u16 erp_next_seq_num;
7418 const u8 *pmk;
7419 size_t pmk_len;
7420 const u8 *pmkid;
7421};
7422
7423/**
7424 * struct cfg80211_connect_resp_params - Connection response params
7425 * @status: Status code, %WLAN_STATUS_SUCCESS for successful connection, use
7426 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
7427 * the real status code for failures. If this call is used to report a
7428 * failure due to a timeout (e.g., not receiving an Authentication frame
7429 * from the AP) instead of an explicit rejection by the AP, -1 is used to
7430 * indicate that this is a failure, but without a status code.
7431 * @timeout_reason is used to report the reason for the timeout in that
7432 * case.
7433 * @req_ie: Association request IEs (may be %NULL)
7434 * @req_ie_len: Association request IEs length
7435 * @resp_ie: Association response IEs (may be %NULL)
7436 * @resp_ie_len: Association response IEs length
7437 * @fils: FILS connection response parameters.
7438 * @timeout_reason: Reason for connection timeout. This is used when the
7439 * connection fails due to a timeout instead of an explicit rejection from
7440 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
7441 * not known. This value is used only if @status < 0 to indicate that the
7442 * failure is due to a timeout and not due to explicit rejection by the AP.
7443 * This value is ignored in other cases (@status >= 0).
7444 * @valid_links: For MLO connection, BIT mask of the valid link ids. Otherwise
7445 * zero.
7446 * @ap_mld_addr: For MLO connection, MLD address of the AP. Otherwise %NULL.
7447 * @links : For MLO connection, contains link info for the valid links indicated
7448 * using @valid_links. For non-MLO connection, links[0] contains the
7449 * connected AP info.
7450 * @links.addr: For MLO connection, MAC address of the STA link. Otherwise
7451 * %NULL.
7452 * @links.bssid: For MLO connection, MAC address of the AP link. For non-MLO
7453 * connection, links[0].bssid points to the BSSID of the AP (may be %NULL).
7454 * @links.bss: For MLO connection, entry of bss to which STA link is connected.
7455 * For non-MLO connection, links[0].bss points to entry of bss to which STA
7456 * is connected. It can be obtained through cfg80211_get_bss() (may be
7457 * %NULL). It is recommended to store the bss from the connect_request and
7458 * hold a reference to it and return through this param to avoid a warning
7459 * if the bss is expired during the connection, esp. for those drivers
7460 * implementing connect op. Only one parameter among @bssid and @bss needs
7461 * to be specified.
7462 * @links.status: per-link status code, to report a status code that's not
7463 * %WLAN_STATUS_SUCCESS for a given link, it must also be in the
7464 * @valid_links bitmap and may have a BSS pointer (which is then released)
7465 */
7466struct cfg80211_connect_resp_params {
7467 int status;
7468 const u8 *req_ie;
7469 size_t req_ie_len;
7470 const u8 *resp_ie;
7471 size_t resp_ie_len;
7472 struct cfg80211_fils_resp_params fils;
7473 enum nl80211_timeout_reason timeout_reason;
7474
7475 const u8 *ap_mld_addr;
7476 u16 valid_links;
7477 struct {
7478 const u8 *addr;
7479 const u8 *bssid;
7480 struct cfg80211_bss *bss;
7481 u16 status;
7482 } links[IEEE80211_MLD_MAX_NUM_LINKS];
7483};
7484
7485/**
7486 * cfg80211_connect_done - notify cfg80211 of connection result
7487 *
7488 * @dev: network device
7489 * @params: connection response parameters
7490 * @gfp: allocation flags
7491 *
7492 * It should be called by the underlying driver once execution of the connection
7493 * request from connect() has been completed. This is similar to
7494 * cfg80211_connect_bss(), but takes a structure pointer for connection response
7495 * parameters. Only one of the functions among cfg80211_connect_bss(),
7496 * cfg80211_connect_result(), cfg80211_connect_timeout(),
7497 * and cfg80211_connect_done() should be called.
7498 */
7499void cfg80211_connect_done(struct net_device *dev,
7500 struct cfg80211_connect_resp_params *params,
7501 gfp_t gfp);
7502
7503/**
7504 * cfg80211_connect_bss - notify cfg80211 of connection result
7505 *
7506 * @dev: network device
7507 * @bssid: the BSSID of the AP
7508 * @bss: Entry of bss to which STA got connected to, can be obtained through
7509 * cfg80211_get_bss() (may be %NULL). But it is recommended to store the
7510 * bss from the connect_request and hold a reference to it and return
7511 * through this param to avoid a warning if the bss is expired during the
7512 * connection, esp. for those drivers implementing connect op.
7513 * Only one parameter among @bssid and @bss needs to be specified.
7514 * @req_ie: association request IEs (maybe be %NULL)
7515 * @req_ie_len: association request IEs length
7516 * @resp_ie: association response IEs (may be %NULL)
7517 * @resp_ie_len: assoc response IEs length
7518 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
7519 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
7520 * the real status code for failures. If this call is used to report a
7521 * failure due to a timeout (e.g., not receiving an Authentication frame
7522 * from the AP) instead of an explicit rejection by the AP, -1 is used to
7523 * indicate that this is a failure, but without a status code.
7524 * @timeout_reason is used to report the reason for the timeout in that
7525 * case.
7526 * @gfp: allocation flags
7527 * @timeout_reason: reason for connection timeout. This is used when the
7528 * connection fails due to a timeout instead of an explicit rejection from
7529 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
7530 * not known. This value is used only if @status < 0 to indicate that the
7531 * failure is due to a timeout and not due to explicit rejection by the AP.
7532 * This value is ignored in other cases (@status >= 0).
7533 *
7534 * It should be called by the underlying driver once execution of the connection
7535 * request from connect() has been completed. This is similar to
7536 * cfg80211_connect_result(), but with the option of identifying the exact bss
7537 * entry for the connection. Only one of the functions among
7538 * cfg80211_connect_bss(), cfg80211_connect_result(),
7539 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
7540 */
7541static inline void
7542cfg80211_connect_bss(struct net_device *dev, const u8 *bssid,
7543 struct cfg80211_bss *bss, const u8 *req_ie,
7544 size_t req_ie_len, const u8 *resp_ie,
7545 size_t resp_ie_len, int status, gfp_t gfp,
7546 enum nl80211_timeout_reason timeout_reason)
7547{
7548 struct cfg80211_connect_resp_params params;
7549
7550 memset(¶ms, 0, sizeof(params));
7551 params.status = status;
7552 params.links[0].bssid = bssid;
7553 params.links[0].bss = bss;
7554 params.req_ie = req_ie;
7555 params.req_ie_len = req_ie_len;
7556 params.resp_ie = resp_ie;
7557 params.resp_ie_len = resp_ie_len;
7558 params.timeout_reason = timeout_reason;
7559
7560 cfg80211_connect_done(dev, ¶ms, gfp);
7561}
7562
7563/**
7564 * cfg80211_connect_result - notify cfg80211 of connection result
7565 *
7566 * @dev: network device
7567 * @bssid: the BSSID of the AP
7568 * @req_ie: association request IEs (maybe be %NULL)
7569 * @req_ie_len: association request IEs length
7570 * @resp_ie: association response IEs (may be %NULL)
7571 * @resp_ie_len: assoc response IEs length
7572 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
7573 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
7574 * the real status code for failures.
7575 * @gfp: allocation flags
7576 *
7577 * It should be called by the underlying driver once execution of the connection
7578 * request from connect() has been completed. This is similar to
7579 * cfg80211_connect_bss() which allows the exact bss entry to be specified. Only
7580 * one of the functions among cfg80211_connect_bss(), cfg80211_connect_result(),
7581 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
7582 */
7583static inline void
7584cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
7585 const u8 *req_ie, size_t req_ie_len,
7586 const u8 *resp_ie, size_t resp_ie_len,
7587 u16 status, gfp_t gfp)
7588{
7589 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, resp_ie,
7590 resp_ie_len, status, gfp,
7591 NL80211_TIMEOUT_UNSPECIFIED);
7592}
7593
7594/**
7595 * cfg80211_connect_timeout - notify cfg80211 of connection timeout
7596 *
7597 * @dev: network device
7598 * @bssid: the BSSID of the AP
7599 * @req_ie: association request IEs (maybe be %NULL)
7600 * @req_ie_len: association request IEs length
7601 * @gfp: allocation flags
7602 * @timeout_reason: reason for connection timeout.
7603 *
7604 * It should be called by the underlying driver whenever connect() has failed
7605 * in a sequence where no explicit authentication/association rejection was
7606 * received from the AP. This could happen, e.g., due to not being able to send
7607 * out the Authentication or Association Request frame or timing out while
7608 * waiting for the response. Only one of the functions among
7609 * cfg80211_connect_bss(), cfg80211_connect_result(),
7610 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
7611 */
7612static inline void
7613cfg80211_connect_timeout(struct net_device *dev, const u8 *bssid,
7614 const u8 *req_ie, size_t req_ie_len, gfp_t gfp,
7615 enum nl80211_timeout_reason timeout_reason)
7616{
7617 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, NULL, 0, -1,
7618 gfp, timeout_reason);
7619}
7620
7621/**
7622 * struct cfg80211_roam_info - driver initiated roaming information
7623 *
7624 * @req_ie: association request IEs (maybe be %NULL)
7625 * @req_ie_len: association request IEs length
7626 * @resp_ie: association response IEs (may be %NULL)
7627 * @resp_ie_len: assoc response IEs length
7628 * @fils: FILS related roaming information.
7629 * @valid_links: For MLO roaming, BIT mask of the new valid links is set.
7630 * Otherwise zero.
7631 * @ap_mld_addr: For MLO roaming, MLD address of the new AP. Otherwise %NULL.
7632 * @links : For MLO roaming, contains new link info for the valid links set in
7633 * @valid_links. For non-MLO roaming, links[0] contains the new AP info.
7634 * @links.addr: For MLO roaming, MAC address of the STA link. Otherwise %NULL.
7635 * @links.bssid: For MLO roaming, MAC address of the new AP link. For non-MLO
7636 * roaming, links[0].bssid points to the BSSID of the new AP. May be
7637 * %NULL if %links.bss is set.
7638 * @links.channel: the channel of the new AP.
7639 * @links.bss: For MLO roaming, entry of new bss to which STA link got
7640 * roamed. For non-MLO roaming, links[0].bss points to entry of bss to
7641 * which STA got roamed (may be %NULL if %links.bssid is set)
7642 */
7643struct cfg80211_roam_info {
7644 const u8 *req_ie;
7645 size_t req_ie_len;
7646 const u8 *resp_ie;
7647 size_t resp_ie_len;
7648 struct cfg80211_fils_resp_params fils;
7649
7650 const u8 *ap_mld_addr;
7651 u16 valid_links;
7652 struct {
7653 const u8 *addr;
7654 const u8 *bssid;
7655 struct ieee80211_channel *channel;
7656 struct cfg80211_bss *bss;
7657 } links[IEEE80211_MLD_MAX_NUM_LINKS];
7658};
7659
7660/**
7661 * cfg80211_roamed - notify cfg80211 of roaming
7662 *
7663 * @dev: network device
7664 * @info: information about the new BSS. struct &cfg80211_roam_info.
7665 * @gfp: allocation flags
7666 *
7667 * This function may be called with the driver passing either the BSSID of the
7668 * new AP or passing the bss entry to avoid a race in timeout of the bss entry.
7669 * It should be called by the underlying driver whenever it roamed from one AP
7670 * to another while connected. Drivers which have roaming implemented in
7671 * firmware should pass the bss entry to avoid a race in bss entry timeout where
7672 * the bss entry of the new AP is seen in the driver, but gets timed out by the
7673 * time it is accessed in __cfg80211_roamed() due to delay in scheduling
7674 * rdev->event_work. In case of any failures, the reference is released
7675 * either in cfg80211_roamed() or in __cfg80211_romed(), Otherwise, it will be
7676 * released while disconnecting from the current bss.
7677 */
7678void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
7679 gfp_t gfp);
7680
7681/**
7682 * cfg80211_port_authorized - notify cfg80211 of successful security association
7683 *
7684 * @dev: network device
7685 * @bssid: the BSSID of the AP
7686 * @td_bitmap: transition disable policy
7687 * @td_bitmap_len: Length of transition disable policy
7688 * @gfp: allocation flags
7689 *
7690 * This function should be called by a driver that supports 4 way handshake
7691 * offload after a security association was successfully established (i.e.,
7692 * the 4 way handshake was completed successfully). The call to this function
7693 * should be preceded with a call to cfg80211_connect_result(),
7694 * cfg80211_connect_done(), cfg80211_connect_bss() or cfg80211_roamed() to
7695 * indicate the 802.11 association.
7696 */
7697void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
7698 const u8* td_bitmap, u8 td_bitmap_len, gfp_t gfp);
7699
7700/**
7701 * cfg80211_disconnected - notify cfg80211 that connection was dropped
7702 *
7703 * @dev: network device
7704 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
7705 * @ie_len: length of IEs
7706 * @reason: reason code for the disconnection, set it to 0 if unknown
7707 * @locally_generated: disconnection was requested locally
7708 * @gfp: allocation flags
7709 *
7710 * After it calls this function, the driver should enter an idle state
7711 * and not try to connect to any AP any more.
7712 */
7713void cfg80211_disconnected(struct net_device *dev, u16 reason,
7714 const u8 *ie, size_t ie_len,
7715 bool locally_generated, gfp_t gfp);
7716
7717/**
7718 * cfg80211_ready_on_channel - notification of remain_on_channel start
7719 * @wdev: wireless device
7720 * @cookie: the request cookie
7721 * @chan: The current channel (from remain_on_channel request)
7722 * @duration: Duration in milliseconds that the driver intents to remain on the
7723 * channel
7724 * @gfp: allocation flags
7725 */
7726void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
7727 struct ieee80211_channel *chan,
7728 unsigned int duration, gfp_t gfp);
7729
7730/**
7731 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
7732 * @wdev: wireless device
7733 * @cookie: the request cookie
7734 * @chan: The current channel (from remain_on_channel request)
7735 * @gfp: allocation flags
7736 */
7737void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
7738 struct ieee80211_channel *chan,
7739 gfp_t gfp);
7740
7741/**
7742 * cfg80211_tx_mgmt_expired - tx_mgmt duration expired
7743 * @wdev: wireless device
7744 * @cookie: the requested cookie
7745 * @chan: The current channel (from tx_mgmt request)
7746 * @gfp: allocation flags
7747 */
7748void cfg80211_tx_mgmt_expired(struct wireless_dev *wdev, u64 cookie,
7749 struct ieee80211_channel *chan, gfp_t gfp);
7750
7751/**
7752 * cfg80211_sinfo_alloc_tid_stats - allocate per-tid statistics.
7753 *
7754 * @sinfo: the station information
7755 * @gfp: allocation flags
7756 */
7757int cfg80211_sinfo_alloc_tid_stats(struct station_info *sinfo, gfp_t gfp);
7758
7759/**
7760 * cfg80211_sinfo_release_content - release contents of station info
7761 * @sinfo: the station information
7762 *
7763 * Releases any potentially allocated sub-information of the station
7764 * information, but not the struct itself (since it's typically on
7765 * the stack.)
7766 */
7767static inline void cfg80211_sinfo_release_content(struct station_info *sinfo)
7768{
7769 kfree(sinfo->pertid);
7770}
7771
7772/**
7773 * cfg80211_new_sta - notify userspace about station
7774 *
7775 * @dev: the netdev
7776 * @mac_addr: the station's address
7777 * @sinfo: the station information
7778 * @gfp: allocation flags
7779 */
7780void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
7781 struct station_info *sinfo, gfp_t gfp);
7782
7783/**
7784 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
7785 * @dev: the netdev
7786 * @mac_addr: the station's address
7787 * @sinfo: the station information/statistics
7788 * @gfp: allocation flags
7789 */
7790void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
7791 struct station_info *sinfo, gfp_t gfp);
7792
7793/**
7794 * cfg80211_del_sta - notify userspace about deletion of a station
7795 *
7796 * @dev: the netdev
7797 * @mac_addr: the station's address
7798 * @gfp: allocation flags
7799 */
7800static inline void cfg80211_del_sta(struct net_device *dev,
7801 const u8 *mac_addr, gfp_t gfp)
7802{
7803 cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp);
7804}
7805
7806/**
7807 * cfg80211_conn_failed - connection request failed notification
7808 *
7809 * @dev: the netdev
7810 * @mac_addr: the station's address
7811 * @reason: the reason for connection failure
7812 * @gfp: allocation flags
7813 *
7814 * Whenever a station tries to connect to an AP and if the station
7815 * could not connect to the AP as the AP has rejected the connection
7816 * for some reasons, this function is called.
7817 *
7818 * The reason for connection failure can be any of the value from
7819 * nl80211_connect_failed_reason enum
7820 */
7821void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
7822 enum nl80211_connect_failed_reason reason,
7823 gfp_t gfp);
7824
7825/**
7826 * struct cfg80211_rx_info - received management frame info
7827 *
7828 * @freq: Frequency on which the frame was received in kHz
7829 * @sig_dbm: signal strength in dBm, or 0 if unknown
7830 * @have_link_id: indicates the frame was received on a link of
7831 * an MLD, i.e. the @link_id field is valid
7832 * @link_id: the ID of the link the frame was received on
7833 * @buf: Management frame (header + body)
7834 * @len: length of the frame data
7835 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
7836 * @rx_tstamp: Hardware timestamp of frame RX in nanoseconds
7837 * @ack_tstamp: Hardware timestamp of ack TX in nanoseconds
7838 */
7839struct cfg80211_rx_info {
7840 int freq;
7841 int sig_dbm;
7842 bool have_link_id;
7843 u8 link_id;
7844 const u8 *buf;
7845 size_t len;
7846 u32 flags;
7847 u64 rx_tstamp;
7848 u64 ack_tstamp;
7849};
7850
7851/**
7852 * cfg80211_rx_mgmt_ext - management frame notification with extended info
7853 * @wdev: wireless device receiving the frame
7854 * @info: RX info as defined in struct cfg80211_rx_info
7855 *
7856 * This function is called whenever an Action frame is received for a station
7857 * mode interface, but is not processed in kernel.
7858 *
7859 * Return: %true if a user space application has registered for this frame.
7860 * For action frames, that makes it responsible for rejecting unrecognized
7861 * action frames; %false otherwise, in which case for action frames the
7862 * driver is responsible for rejecting the frame.
7863 */
7864bool cfg80211_rx_mgmt_ext(struct wireless_dev *wdev,
7865 struct cfg80211_rx_info *info);
7866
7867/**
7868 * cfg80211_rx_mgmt_khz - notification of received, unprocessed management frame
7869 * @wdev: wireless device receiving the frame
7870 * @freq: Frequency on which the frame was received in KHz
7871 * @sig_dbm: signal strength in dBm, or 0 if unknown
7872 * @buf: Management frame (header + body)
7873 * @len: length of the frame data
7874 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
7875 *
7876 * This function is called whenever an Action frame is received for a station
7877 * mode interface, but is not processed in kernel.
7878 *
7879 * Return: %true if a user space application has registered for this frame.
7880 * For action frames, that makes it responsible for rejecting unrecognized
7881 * action frames; %false otherwise, in which case for action frames the
7882 * driver is responsible for rejecting the frame.
7883 */
7884static inline bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq,
7885 int sig_dbm, const u8 *buf, size_t len,
7886 u32 flags)
7887{
7888 struct cfg80211_rx_info info = {
7889 .freq = freq,
7890 .sig_dbm = sig_dbm,
7891 .buf = buf,
7892 .len = len,
7893 .flags = flags
7894 };
7895
7896 return cfg80211_rx_mgmt_ext(wdev, &info);
7897}
7898
7899/**
7900 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
7901 * @wdev: wireless device receiving the frame
7902 * @freq: Frequency on which the frame was received in MHz
7903 * @sig_dbm: signal strength in dBm, or 0 if unknown
7904 * @buf: Management frame (header + body)
7905 * @len: length of the frame data
7906 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
7907 *
7908 * This function is called whenever an Action frame is received for a station
7909 * mode interface, but is not processed in kernel.
7910 *
7911 * Return: %true if a user space application has registered for this frame.
7912 * For action frames, that makes it responsible for rejecting unrecognized
7913 * action frames; %false otherwise, in which case for action frames the
7914 * driver is responsible for rejecting the frame.
7915 */
7916static inline bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq,
7917 int sig_dbm, const u8 *buf, size_t len,
7918 u32 flags)
7919{
7920 struct cfg80211_rx_info info = {
7921 .freq = MHZ_TO_KHZ(freq),
7922 .sig_dbm = sig_dbm,
7923 .buf = buf,
7924 .len = len,
7925 .flags = flags
7926 };
7927
7928 return cfg80211_rx_mgmt_ext(wdev, &info);
7929}
7930
7931/**
7932 * struct cfg80211_tx_status - TX status for management frame information
7933 *
7934 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
7935 * @tx_tstamp: hardware TX timestamp in nanoseconds
7936 * @ack_tstamp: hardware ack RX timestamp in nanoseconds
7937 * @buf: Management frame (header + body)
7938 * @len: length of the frame data
7939 * @ack: Whether frame was acknowledged
7940 */
7941struct cfg80211_tx_status {
7942 u64 cookie;
7943 u64 tx_tstamp;
7944 u64 ack_tstamp;
7945 const u8 *buf;
7946 size_t len;
7947 bool ack;
7948};
7949
7950/**
7951 * cfg80211_mgmt_tx_status_ext - TX status notification with extended info
7952 * @wdev: wireless device receiving the frame
7953 * @status: TX status data
7954 * @gfp: context flags
7955 *
7956 * This function is called whenever a management frame was requested to be
7957 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
7958 * transmission attempt with extended info.
7959 */
7960void cfg80211_mgmt_tx_status_ext(struct wireless_dev *wdev,
7961 struct cfg80211_tx_status *status, gfp_t gfp);
7962
7963/**
7964 * cfg80211_mgmt_tx_status - notification of TX status for management frame
7965 * @wdev: wireless device receiving the frame
7966 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
7967 * @buf: Management frame (header + body)
7968 * @len: length of the frame data
7969 * @ack: Whether frame was acknowledged
7970 * @gfp: context flags
7971 *
7972 * This function is called whenever a management frame was requested to be
7973 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
7974 * transmission attempt.
7975 */
7976static inline void cfg80211_mgmt_tx_status(struct wireless_dev *wdev,
7977 u64 cookie, const u8 *buf,
7978 size_t len, bool ack, gfp_t gfp)
7979{
7980 struct cfg80211_tx_status status = {
7981 .cookie = cookie,
7982 .buf = buf,
7983 .len = len,
7984 .ack = ack
7985 };
7986
7987 cfg80211_mgmt_tx_status_ext(wdev, &status, gfp);
7988}
7989
7990/**
7991 * cfg80211_control_port_tx_status - notification of TX status for control
7992 * port frames
7993 * @wdev: wireless device receiving the frame
7994 * @cookie: Cookie returned by cfg80211_ops::tx_control_port()
7995 * @buf: Data frame (header + body)
7996 * @len: length of the frame data
7997 * @ack: Whether frame was acknowledged
7998 * @gfp: context flags
7999 *
8000 * This function is called whenever a control port frame was requested to be
8001 * transmitted with cfg80211_ops::tx_control_port() to report the TX status of
8002 * the transmission attempt.
8003 */
8004void cfg80211_control_port_tx_status(struct wireless_dev *wdev, u64 cookie,
8005 const u8 *buf, size_t len, bool ack,
8006 gfp_t gfp);
8007
8008/**
8009 * cfg80211_rx_control_port - notification about a received control port frame
8010 * @dev: The device the frame matched to
8011 * @skb: The skbuf with the control port frame. It is assumed that the skbuf
8012 * is 802.3 formatted (with 802.3 header). The skb can be non-linear.
8013 * This function does not take ownership of the skb, so the caller is
8014 * responsible for any cleanup. The caller must also ensure that
8015 * skb->protocol is set appropriately.
8016 * @unencrypted: Whether the frame was received unencrypted
8017 *
8018 * This function is used to inform userspace about a received control port
8019 * frame. It should only be used if userspace indicated it wants to receive
8020 * control port frames over nl80211.
8021 *
8022 * The frame is the data portion of the 802.3 or 802.11 data frame with all
8023 * network layer headers removed (e.g. the raw EAPoL frame).
8024 *
8025 * Return: %true if the frame was passed to userspace
8026 */
8027bool cfg80211_rx_control_port(struct net_device *dev,
8028 struct sk_buff *skb, bool unencrypted);
8029
8030/**
8031 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
8032 * @dev: network device
8033 * @rssi_event: the triggered RSSI event
8034 * @rssi_level: new RSSI level value or 0 if not available
8035 * @gfp: context flags
8036 *
8037 * This function is called when a configured connection quality monitoring
8038 * rssi threshold reached event occurs.
8039 */
8040void cfg80211_cqm_rssi_notify(struct net_device *dev,
8041 enum nl80211_cqm_rssi_threshold_event rssi_event,
8042 s32 rssi_level, gfp_t gfp);
8043
8044/**
8045 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
8046 * @dev: network device
8047 * @peer: peer's MAC address
8048 * @num_packets: how many packets were lost -- should be a fixed threshold
8049 * but probably no less than maybe 50, or maybe a throughput dependent
8050 * threshold (to account for temporary interference)
8051 * @gfp: context flags
8052 */
8053void cfg80211_cqm_pktloss_notify(struct net_device *dev,
8054 const u8 *peer, u32 num_packets, gfp_t gfp);
8055
8056/**
8057 * cfg80211_cqm_txe_notify - TX error rate event
8058 * @dev: network device
8059 * @peer: peer's MAC address
8060 * @num_packets: how many packets were lost
8061 * @rate: % of packets which failed transmission
8062 * @intvl: interval (in s) over which the TX failure threshold was breached.
8063 * @gfp: context flags
8064 *
8065 * Notify userspace when configured % TX failures over number of packets in a
8066 * given interval is exceeded.
8067 */
8068void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
8069 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
8070
8071/**
8072 * cfg80211_cqm_beacon_loss_notify - beacon loss event
8073 * @dev: network device
8074 * @gfp: context flags
8075 *
8076 * Notify userspace about beacon loss from the connected AP.
8077 */
8078void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp);
8079
8080/**
8081 * __cfg80211_radar_event - radar detection event
8082 * @wiphy: the wiphy
8083 * @chandef: chandef for the current channel
8084 * @offchan: the radar has been detected on the offchannel chain
8085 * @gfp: context flags
8086 *
8087 * This function is called when a radar is detected on the current chanenl.
8088 */
8089void __cfg80211_radar_event(struct wiphy *wiphy,
8090 struct cfg80211_chan_def *chandef,
8091 bool offchan, gfp_t gfp);
8092
8093static inline void
8094cfg80211_radar_event(struct wiphy *wiphy,
8095 struct cfg80211_chan_def *chandef,
8096 gfp_t gfp)
8097{
8098 __cfg80211_radar_event(wiphy, chandef, false, gfp);
8099}
8100
8101static inline void
8102cfg80211_background_radar_event(struct wiphy *wiphy,
8103 struct cfg80211_chan_def *chandef,
8104 gfp_t gfp)
8105{
8106 __cfg80211_radar_event(wiphy, chandef, true, gfp);
8107}
8108
8109/**
8110 * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event
8111 * @dev: network device
8112 * @mac: MAC address of a station which opmode got modified
8113 * @sta_opmode: station's current opmode value
8114 * @gfp: context flags
8115 *
8116 * Driver should call this function when station's opmode modified via action
8117 * frame.
8118 */
8119void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
8120 struct sta_opmode_info *sta_opmode,
8121 gfp_t gfp);
8122
8123/**
8124 * cfg80211_cac_event - Channel availability check (CAC) event
8125 * @netdev: network device
8126 * @chandef: chandef for the current channel
8127 * @event: type of event
8128 * @gfp: context flags
8129 *
8130 * This function is called when a Channel availability check (CAC) is finished
8131 * or aborted. This must be called to notify the completion of a CAC process,
8132 * also by full-MAC drivers.
8133 */
8134void cfg80211_cac_event(struct net_device *netdev,
8135 const struct cfg80211_chan_def *chandef,
8136 enum nl80211_radar_event event, gfp_t gfp);
8137
8138/**
8139 * cfg80211_background_cac_abort - Channel Availability Check offchan abort event
8140 * @wiphy: the wiphy
8141 *
8142 * This function is called by the driver when a Channel Availability Check
8143 * (CAC) is aborted by a offchannel dedicated chain.
8144 */
8145void cfg80211_background_cac_abort(struct wiphy *wiphy);
8146
8147/**
8148 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
8149 * @dev: network device
8150 * @bssid: BSSID of AP (to avoid races)
8151 * @replay_ctr: new replay counter
8152 * @gfp: allocation flags
8153 */
8154void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
8155 const u8 *replay_ctr, gfp_t gfp);
8156
8157/**
8158 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
8159 * @dev: network device
8160 * @index: candidate index (the smaller the index, the higher the priority)
8161 * @bssid: BSSID of AP
8162 * @preauth: Whether AP advertises support for RSN pre-authentication
8163 * @gfp: allocation flags
8164 */
8165void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
8166 const u8 *bssid, bool preauth, gfp_t gfp);
8167
8168/**
8169 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
8170 * @dev: The device the frame matched to
8171 * @addr: the transmitter address
8172 * @gfp: context flags
8173 *
8174 * This function is used in AP mode (only!) to inform userspace that
8175 * a spurious class 3 frame was received, to be able to deauth the
8176 * sender.
8177 * Return: %true if the frame was passed to userspace (or this failed
8178 * for a reason other than not having a subscription.)
8179 */
8180bool cfg80211_rx_spurious_frame(struct net_device *dev,
8181 const u8 *addr, gfp_t gfp);
8182
8183/**
8184 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
8185 * @dev: The device the frame matched to
8186 * @addr: the transmitter address
8187 * @gfp: context flags
8188 *
8189 * This function is used in AP mode (only!) to inform userspace that
8190 * an associated station sent a 4addr frame but that wasn't expected.
8191 * It is allowed and desirable to send this event only once for each
8192 * station to avoid event flooding.
8193 * Return: %true if the frame was passed to userspace (or this failed
8194 * for a reason other than not having a subscription.)
8195 */
8196bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
8197 const u8 *addr, gfp_t gfp);
8198
8199/**
8200 * cfg80211_probe_status - notify userspace about probe status
8201 * @dev: the device the probe was sent on
8202 * @addr: the address of the peer
8203 * @cookie: the cookie filled in @probe_client previously
8204 * @acked: indicates whether probe was acked or not
8205 * @ack_signal: signal strength (in dBm) of the ACK frame.
8206 * @is_valid_ack_signal: indicates the ack_signal is valid or not.
8207 * @gfp: allocation flags
8208 */
8209void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8210 u64 cookie, bool acked, s32 ack_signal,
8211 bool is_valid_ack_signal, gfp_t gfp);
8212
8213/**
8214 * cfg80211_report_obss_beacon_khz - report beacon from other APs
8215 * @wiphy: The wiphy that received the beacon
8216 * @frame: the frame
8217 * @len: length of the frame
8218 * @freq: frequency the frame was received on in KHz
8219 * @sig_dbm: signal strength in dBm, or 0 if unknown
8220 *
8221 * Use this function to report to userspace when a beacon was
8222 * received. It is not useful to call this when there is no
8223 * netdev that is in AP/GO mode.
8224 */
8225void cfg80211_report_obss_beacon_khz(struct wiphy *wiphy, const u8 *frame,
8226 size_t len, int freq, int sig_dbm);
8227
8228/**
8229 * cfg80211_report_obss_beacon - report beacon from other APs
8230 * @wiphy: The wiphy that received the beacon
8231 * @frame: the frame
8232 * @len: length of the frame
8233 * @freq: frequency the frame was received on
8234 * @sig_dbm: signal strength in dBm, or 0 if unknown
8235 *
8236 * Use this function to report to userspace when a beacon was
8237 * received. It is not useful to call this when there is no
8238 * netdev that is in AP/GO mode.
8239 */
8240static inline void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8241 const u8 *frame, size_t len,
8242 int freq, int sig_dbm)
8243{
8244 cfg80211_report_obss_beacon_khz(wiphy, frame, len, MHZ_TO_KHZ(freq),
8245 sig_dbm);
8246}
8247
8248/**
8249 * cfg80211_reg_can_beacon - check if beaconing is allowed
8250 * @wiphy: the wiphy
8251 * @chandef: the channel definition
8252 * @iftype: interface type
8253 *
8254 * Return: %true if there is no secondary channel or the secondary channel(s)
8255 * can be used for beaconing (i.e. is not a radar channel etc.)
8256 */
8257bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
8258 struct cfg80211_chan_def *chandef,
8259 enum nl80211_iftype iftype);
8260
8261/**
8262 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
8263 * @wiphy: the wiphy
8264 * @chandef: the channel definition
8265 * @iftype: interface type
8266 *
8267 * Return: %true if there is no secondary channel or the secondary channel(s)
8268 * can be used for beaconing (i.e. is not a radar channel etc.). This version
8269 * also checks if IR-relaxation conditions apply, to allow beaconing under
8270 * more permissive conditions.
8271 *
8272 * Requires the wiphy mutex to be held.
8273 */
8274bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
8275 struct cfg80211_chan_def *chandef,
8276 enum nl80211_iftype iftype);
8277
8278/*
8279 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
8280 * @dev: the device which switched channels
8281 * @chandef: the new channel definition
8282 * @link_id: the link ID for MLO, must be 0 for non-MLO
8283 *
8284 * Caller must acquire wdev_lock, therefore must only be called from sleepable
8285 * driver context!
8286 */
8287void cfg80211_ch_switch_notify(struct net_device *dev,
8288 struct cfg80211_chan_def *chandef,
8289 unsigned int link_id);
8290
8291/*
8292 * cfg80211_ch_switch_started_notify - notify channel switch start
8293 * @dev: the device on which the channel switch started
8294 * @chandef: the future channel definition
8295 * @link_id: the link ID for MLO, must be 0 for non-MLO
8296 * @count: the number of TBTTs until the channel switch happens
8297 * @quiet: whether or not immediate quiet was requested by the AP
8298 *
8299 * Inform the userspace about the channel switch that has just
8300 * started, so that it can take appropriate actions (eg. starting
8301 * channel switch on other vifs), if necessary.
8302 */
8303void cfg80211_ch_switch_started_notify(struct net_device *dev,
8304 struct cfg80211_chan_def *chandef,
8305 unsigned int link_id, u8 count,
8306 bool quiet);
8307
8308/**
8309 * ieee80211_operating_class_to_band - convert operating class to band
8310 *
8311 * @operating_class: the operating class to convert
8312 * @band: band pointer to fill
8313 *
8314 * Returns %true if the conversion was successful, %false otherwise.
8315 */
8316bool ieee80211_operating_class_to_band(u8 operating_class,
8317 enum nl80211_band *band);
8318
8319/**
8320 * ieee80211_chandef_to_operating_class - convert chandef to operation class
8321 *
8322 * @chandef: the chandef to convert
8323 * @op_class: a pointer to the resulting operating class
8324 *
8325 * Returns %true if the conversion was successful, %false otherwise.
8326 */
8327bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
8328 u8 *op_class);
8329
8330/**
8331 * ieee80211_chandef_to_khz - convert chandef to frequency in KHz
8332 *
8333 * @chandef: the chandef to convert
8334 *
8335 * Returns the center frequency of chandef (1st segment) in KHz.
8336 */
8337static inline u32
8338ieee80211_chandef_to_khz(const struct cfg80211_chan_def *chandef)
8339{
8340 return MHZ_TO_KHZ(chandef->center_freq1) + chandef->freq1_offset;
8341}
8342
8343/*
8344 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
8345 * @dev: the device on which the operation is requested
8346 * @peer: the MAC address of the peer device
8347 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
8348 * NL80211_TDLS_TEARDOWN)
8349 * @reason_code: the reason code for teardown request
8350 * @gfp: allocation flags
8351 *
8352 * This function is used to request userspace to perform TDLS operation that
8353 * requires knowledge of keys, i.e., link setup or teardown when the AP
8354 * connection uses encryption. This is optional mechanism for the driver to use
8355 * if it can automatically determine when a TDLS link could be useful (e.g.,
8356 * based on traffic and signal strength for a peer).
8357 */
8358void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
8359 enum nl80211_tdls_operation oper,
8360 u16 reason_code, gfp_t gfp);
8361
8362/*
8363 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
8364 * @rate: given rate_info to calculate bitrate from
8365 *
8366 * return 0 if MCS index >= 32
8367 */
8368u32 cfg80211_calculate_bitrate(struct rate_info *rate);
8369
8370/**
8371 * cfg80211_unregister_wdev - remove the given wdev
8372 * @wdev: struct wireless_dev to remove
8373 *
8374 * This function removes the device so it can no longer be used. It is necessary
8375 * to call this function even when cfg80211 requests the removal of the device
8376 * by calling the del_virtual_intf() callback. The function must also be called
8377 * when the driver wishes to unregister the wdev, e.g. when the hardware device
8378 * is unbound from the driver.
8379 *
8380 * Requires the RTNL and wiphy mutex to be held.
8381 */
8382void cfg80211_unregister_wdev(struct wireless_dev *wdev);
8383
8384/**
8385 * cfg80211_register_netdevice - register the given netdev
8386 * @dev: the netdev to register
8387 *
8388 * Note: In contexts coming from cfg80211 callbacks, you must call this rather
8389 * than register_netdevice(), unregister_netdev() is impossible as the RTNL is
8390 * held. Otherwise, both register_netdevice() and register_netdev() are usable
8391 * instead as well.
8392 *
8393 * Requires the RTNL and wiphy mutex to be held.
8394 */
8395int cfg80211_register_netdevice(struct net_device *dev);
8396
8397/**
8398 * cfg80211_unregister_netdevice - unregister the given netdev
8399 * @dev: the netdev to register
8400 *
8401 * Note: In contexts coming from cfg80211 callbacks, you must call this rather
8402 * than unregister_netdevice(), unregister_netdev() is impossible as the RTNL
8403 * is held. Otherwise, both unregister_netdevice() and unregister_netdev() are
8404 * usable instead as well.
8405 *
8406 * Requires the RTNL and wiphy mutex to be held.
8407 */
8408static inline void cfg80211_unregister_netdevice(struct net_device *dev)
8409{
8410#if IS_ENABLED(CONFIG_CFG80211)
8411 cfg80211_unregister_wdev(dev->ieee80211_ptr);
8412#endif
8413}
8414
8415/**
8416 * struct cfg80211_ft_event_params - FT Information Elements
8417 * @ies: FT IEs
8418 * @ies_len: length of the FT IE in bytes
8419 * @target_ap: target AP's MAC address
8420 * @ric_ies: RIC IE
8421 * @ric_ies_len: length of the RIC IE in bytes
8422 */
8423struct cfg80211_ft_event_params {
8424 const u8 *ies;
8425 size_t ies_len;
8426 const u8 *target_ap;
8427 const u8 *ric_ies;
8428 size_t ric_ies_len;
8429};
8430
8431/**
8432 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
8433 * @netdev: network device
8434 * @ft_event: IE information
8435 */
8436void cfg80211_ft_event(struct net_device *netdev,
8437 struct cfg80211_ft_event_params *ft_event);
8438
8439/**
8440 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
8441 * @ies: the input IE buffer
8442 * @len: the input length
8443 * @attr: the attribute ID to find
8444 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
8445 * if the function is only called to get the needed buffer size
8446 * @bufsize: size of the output buffer
8447 *
8448 * The function finds a given P2P attribute in the (vendor) IEs and
8449 * copies its contents to the given buffer.
8450 *
8451 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
8452 * malformed or the attribute can't be found (respectively), or the
8453 * length of the found attribute (which can be zero).
8454 */
8455int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
8456 enum ieee80211_p2p_attr_id attr,
8457 u8 *buf, unsigned int bufsize);
8458
8459/**
8460 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC)
8461 * @ies: the IE buffer
8462 * @ielen: the length of the IE buffer
8463 * @ids: an array with element IDs that are allowed before
8464 * the split. A WLAN_EID_EXTENSION value means that the next
8465 * EID in the list is a sub-element of the EXTENSION IE.
8466 * @n_ids: the size of the element ID array
8467 * @after_ric: array IE types that come after the RIC element
8468 * @n_after_ric: size of the @after_ric array
8469 * @offset: offset where to start splitting in the buffer
8470 *
8471 * This function splits an IE buffer by updating the @offset
8472 * variable to point to the location where the buffer should be
8473 * split.
8474 *
8475 * It assumes that the given IE buffer is well-formed, this
8476 * has to be guaranteed by the caller!
8477 *
8478 * It also assumes that the IEs in the buffer are ordered
8479 * correctly, if not the result of using this function will not
8480 * be ordered correctly either, i.e. it does no reordering.
8481 *
8482 * The function returns the offset where the next part of the
8483 * buffer starts, which may be @ielen if the entire (remainder)
8484 * of the buffer should be used.
8485 */
8486size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen,
8487 const u8 *ids, int n_ids,
8488 const u8 *after_ric, int n_after_ric,
8489 size_t offset);
8490
8491/**
8492 * ieee80211_ie_split - split an IE buffer according to ordering
8493 * @ies: the IE buffer
8494 * @ielen: the length of the IE buffer
8495 * @ids: an array with element IDs that are allowed before
8496 * the split. A WLAN_EID_EXTENSION value means that the next
8497 * EID in the list is a sub-element of the EXTENSION IE.
8498 * @n_ids: the size of the element ID array
8499 * @offset: offset where to start splitting in the buffer
8500 *
8501 * This function splits an IE buffer by updating the @offset
8502 * variable to point to the location where the buffer should be
8503 * split.
8504 *
8505 * It assumes that the given IE buffer is well-formed, this
8506 * has to be guaranteed by the caller!
8507 *
8508 * It also assumes that the IEs in the buffer are ordered
8509 * correctly, if not the result of using this function will not
8510 * be ordered correctly either, i.e. it does no reordering.
8511 *
8512 * The function returns the offset where the next part of the
8513 * buffer starts, which may be @ielen if the entire (remainder)
8514 * of the buffer should be used.
8515 */
8516static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
8517 const u8 *ids, int n_ids, size_t offset)
8518{
8519 return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset);
8520}
8521
8522/**
8523 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
8524 * @wdev: the wireless device reporting the wakeup
8525 * @wakeup: the wakeup report
8526 * @gfp: allocation flags
8527 *
8528 * This function reports that the given device woke up. If it
8529 * caused the wakeup, report the reason(s), otherwise you may
8530 * pass %NULL as the @wakeup parameter to advertise that something
8531 * else caused the wakeup.
8532 */
8533void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
8534 struct cfg80211_wowlan_wakeup *wakeup,
8535 gfp_t gfp);
8536
8537/**
8538 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
8539 *
8540 * @wdev: the wireless device for which critical protocol is stopped.
8541 * @gfp: allocation flags
8542 *
8543 * This function can be called by the driver to indicate it has reverted
8544 * operation back to normal. One reason could be that the duration given
8545 * by .crit_proto_start() has expired.
8546 */
8547void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp);
8548
8549/**
8550 * ieee80211_get_num_supported_channels - get number of channels device has
8551 * @wiphy: the wiphy
8552 *
8553 * Return: the number of channels supported by the device.
8554 */
8555unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy);
8556
8557/**
8558 * cfg80211_check_combinations - check interface combinations
8559 *
8560 * @wiphy: the wiphy
8561 * @params: the interface combinations parameter
8562 *
8563 * This function can be called by the driver to check whether a
8564 * combination of interfaces and their types are allowed according to
8565 * the interface combinations.
8566 */
8567int cfg80211_check_combinations(struct wiphy *wiphy,
8568 struct iface_combination_params *params);
8569
8570/**
8571 * cfg80211_iter_combinations - iterate over matching combinations
8572 *
8573 * @wiphy: the wiphy
8574 * @params: the interface combinations parameter
8575 * @iter: function to call for each matching combination
8576 * @data: pointer to pass to iter function
8577 *
8578 * This function can be called by the driver to check what possible
8579 * combinations it fits in at a given moment, e.g. for channel switching
8580 * purposes.
8581 */
8582int cfg80211_iter_combinations(struct wiphy *wiphy,
8583 struct iface_combination_params *params,
8584 void (*iter)(const struct ieee80211_iface_combination *c,
8585 void *data),
8586 void *data);
8587
8588/*
8589 * cfg80211_stop_iface - trigger interface disconnection
8590 *
8591 * @wiphy: the wiphy
8592 * @wdev: wireless device
8593 * @gfp: context flags
8594 *
8595 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
8596 * disconnected.
8597 *
8598 * Note: This doesn't need any locks and is asynchronous.
8599 */
8600void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
8601 gfp_t gfp);
8602
8603/**
8604 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
8605 * @wiphy: the wiphy to shut down
8606 *
8607 * This function shuts down all interfaces belonging to this wiphy by
8608 * calling dev_close() (and treating non-netdev interfaces as needed).
8609 * It shouldn't really be used unless there are some fatal device errors
8610 * that really can't be recovered in any other way.
8611 *
8612 * Callers must hold the RTNL and be able to deal with callbacks into
8613 * the driver while the function is running.
8614 */
8615void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy);
8616
8617/**
8618 * wiphy_ext_feature_set - set the extended feature flag
8619 *
8620 * @wiphy: the wiphy to modify.
8621 * @ftidx: extended feature bit index.
8622 *
8623 * The extended features are flagged in multiple bytes (see
8624 * &struct wiphy.@ext_features)
8625 */
8626static inline void wiphy_ext_feature_set(struct wiphy *wiphy,
8627 enum nl80211_ext_feature_index ftidx)
8628{
8629 u8 *ft_byte;
8630
8631 ft_byte = &wiphy->ext_features[ftidx / 8];
8632 *ft_byte |= BIT(ftidx % 8);
8633}
8634
8635/**
8636 * wiphy_ext_feature_isset - check the extended feature flag
8637 *
8638 * @wiphy: the wiphy to modify.
8639 * @ftidx: extended feature bit index.
8640 *
8641 * The extended features are flagged in multiple bytes (see
8642 * &struct wiphy.@ext_features)
8643 */
8644static inline bool
8645wiphy_ext_feature_isset(struct wiphy *wiphy,
8646 enum nl80211_ext_feature_index ftidx)
8647{
8648 u8 ft_byte;
8649
8650 ft_byte = wiphy->ext_features[ftidx / 8];
8651 return (ft_byte & BIT(ftidx % 8)) != 0;
8652}
8653
8654/**
8655 * cfg80211_free_nan_func - free NAN function
8656 * @f: NAN function that should be freed
8657 *
8658 * Frees all the NAN function and all it's allocated members.
8659 */
8660void cfg80211_free_nan_func(struct cfg80211_nan_func *f);
8661
8662/**
8663 * struct cfg80211_nan_match_params - NAN match parameters
8664 * @type: the type of the function that triggered a match. If it is
8665 * %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber.
8666 * If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery
8667 * result.
8668 * If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up.
8669 * @inst_id: the local instance id
8670 * @peer_inst_id: the instance id of the peer's function
8671 * @addr: the MAC address of the peer
8672 * @info_len: the length of the &info
8673 * @info: the Service Specific Info from the peer (if any)
8674 * @cookie: unique identifier of the corresponding function
8675 */
8676struct cfg80211_nan_match_params {
8677 enum nl80211_nan_function_type type;
8678 u8 inst_id;
8679 u8 peer_inst_id;
8680 const u8 *addr;
8681 u8 info_len;
8682 const u8 *info;
8683 u64 cookie;
8684};
8685
8686/**
8687 * cfg80211_nan_match - report a match for a NAN function.
8688 * @wdev: the wireless device reporting the match
8689 * @match: match notification parameters
8690 * @gfp: allocation flags
8691 *
8692 * This function reports that the a NAN function had a match. This
8693 * can be a subscribe that had a match or a solicited publish that
8694 * was sent. It can also be a follow up that was received.
8695 */
8696void cfg80211_nan_match(struct wireless_dev *wdev,
8697 struct cfg80211_nan_match_params *match, gfp_t gfp);
8698
8699/**
8700 * cfg80211_nan_func_terminated - notify about NAN function termination.
8701 *
8702 * @wdev: the wireless device reporting the match
8703 * @inst_id: the local instance id
8704 * @reason: termination reason (one of the NL80211_NAN_FUNC_TERM_REASON_*)
8705 * @cookie: unique NAN function identifier
8706 * @gfp: allocation flags
8707 *
8708 * This function reports that the a NAN function is terminated.
8709 */
8710void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
8711 u8 inst_id,
8712 enum nl80211_nan_func_term_reason reason,
8713 u64 cookie, gfp_t gfp);
8714
8715/* ethtool helper */
8716void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info);
8717
8718/**
8719 * cfg80211_external_auth_request - userspace request for authentication
8720 * @netdev: network device
8721 * @params: External authentication parameters
8722 * @gfp: allocation flags
8723 * Returns: 0 on success, < 0 on error
8724 */
8725int cfg80211_external_auth_request(struct net_device *netdev,
8726 struct cfg80211_external_auth_params *params,
8727 gfp_t gfp);
8728
8729/**
8730 * cfg80211_pmsr_report - report peer measurement result data
8731 * @wdev: the wireless device reporting the measurement
8732 * @req: the original measurement request
8733 * @result: the result data
8734 * @gfp: allocation flags
8735 */
8736void cfg80211_pmsr_report(struct wireless_dev *wdev,
8737 struct cfg80211_pmsr_request *req,
8738 struct cfg80211_pmsr_result *result,
8739 gfp_t gfp);
8740
8741/**
8742 * cfg80211_pmsr_complete - report peer measurement completed
8743 * @wdev: the wireless device reporting the measurement
8744 * @req: the original measurement request
8745 * @gfp: allocation flags
8746 *
8747 * Report that the entire measurement completed, after this
8748 * the request pointer will no longer be valid.
8749 */
8750void cfg80211_pmsr_complete(struct wireless_dev *wdev,
8751 struct cfg80211_pmsr_request *req,
8752 gfp_t gfp);
8753
8754/**
8755 * cfg80211_iftype_allowed - check whether the interface can be allowed
8756 * @wiphy: the wiphy
8757 * @iftype: interface type
8758 * @is_4addr: use_4addr flag, must be '0' when check_swif is '1'
8759 * @check_swif: check iftype against software interfaces
8760 *
8761 * Check whether the interface is allowed to operate; additionally, this API
8762 * can be used to check iftype against the software interfaces when
8763 * check_swif is '1'.
8764 */
8765bool cfg80211_iftype_allowed(struct wiphy *wiphy, enum nl80211_iftype iftype,
8766 bool is_4addr, u8 check_swif);
8767
8768
8769/**
8770 * cfg80211_assoc_comeback - notification of association that was
8771 * temporarly rejected with a comeback
8772 * @netdev: network device
8773 * @ap_addr: AP (MLD) address that rejected the assocation
8774 * @timeout: timeout interval value TUs.
8775 *
8776 * this function may sleep. the caller must hold the corresponding wdev's mutex.
8777 */
8778void cfg80211_assoc_comeback(struct net_device *netdev,
8779 const u8 *ap_addr, u32 timeout);
8780
8781/* Logging, debugging and troubleshooting/diagnostic helpers. */
8782
8783/* wiphy_printk helpers, similar to dev_printk */
8784
8785#define wiphy_printk(level, wiphy, format, args...) \
8786 dev_printk(level, &(wiphy)->dev, format, ##args)
8787#define wiphy_emerg(wiphy, format, args...) \
8788 dev_emerg(&(wiphy)->dev, format, ##args)
8789#define wiphy_alert(wiphy, format, args...) \
8790 dev_alert(&(wiphy)->dev, format, ##args)
8791#define wiphy_crit(wiphy, format, args...) \
8792 dev_crit(&(wiphy)->dev, format, ##args)
8793#define wiphy_err(wiphy, format, args...) \
8794 dev_err(&(wiphy)->dev, format, ##args)
8795#define wiphy_warn(wiphy, format, args...) \
8796 dev_warn(&(wiphy)->dev, format, ##args)
8797#define wiphy_notice(wiphy, format, args...) \
8798 dev_notice(&(wiphy)->dev, format, ##args)
8799#define wiphy_info(wiphy, format, args...) \
8800 dev_info(&(wiphy)->dev, format, ##args)
8801#define wiphy_info_once(wiphy, format, args...) \
8802 dev_info_once(&(wiphy)->dev, format, ##args)
8803
8804#define wiphy_err_ratelimited(wiphy, format, args...) \
8805 dev_err_ratelimited(&(wiphy)->dev, format, ##args)
8806#define wiphy_warn_ratelimited(wiphy, format, args...) \
8807 dev_warn_ratelimited(&(wiphy)->dev, format, ##args)
8808
8809#define wiphy_debug(wiphy, format, args...) \
8810 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
8811
8812#define wiphy_dbg(wiphy, format, args...) \
8813 dev_dbg(&(wiphy)->dev, format, ##args)
8814
8815#if defined(VERBOSE_DEBUG)
8816#define wiphy_vdbg wiphy_dbg
8817#else
8818#define wiphy_vdbg(wiphy, format, args...) \
8819({ \
8820 if (0) \
8821 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
8822 0; \
8823})
8824#endif
8825
8826/*
8827 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
8828 * of using a WARN/WARN_ON to get the message out, including the
8829 * file/line information and a backtrace.
8830 */
8831#define wiphy_WARN(wiphy, format, args...) \
8832 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
8833
8834/**
8835 * cfg80211_update_owe_info_event - Notify the peer's OWE info to user space
8836 * @netdev: network device
8837 * @owe_info: peer's owe info
8838 * @gfp: allocation flags
8839 */
8840void cfg80211_update_owe_info_event(struct net_device *netdev,
8841 struct cfg80211_update_owe_info *owe_info,
8842 gfp_t gfp);
8843
8844/**
8845 * cfg80211_bss_flush - resets all the scan entries
8846 * @wiphy: the wiphy
8847 */
8848void cfg80211_bss_flush(struct wiphy *wiphy);
8849
8850/**
8851 * cfg80211_bss_color_notify - notify about bss color event
8852 * @dev: network device
8853 * @gfp: allocation flags
8854 * @cmd: the actual event we want to notify
8855 * @count: the number of TBTTs until the color change happens
8856 * @color_bitmap: representations of the colors that the local BSS is aware of
8857 */
8858int cfg80211_bss_color_notify(struct net_device *dev, gfp_t gfp,
8859 enum nl80211_commands cmd, u8 count,
8860 u64 color_bitmap);
8861
8862/**
8863 * cfg80211_obss_color_collision_notify - notify about bss color collision
8864 * @dev: network device
8865 * @color_bitmap: representations of the colors that the local BSS is aware of
8866 * @gfp: allocation flags
8867 */
8868static inline int cfg80211_obss_color_collision_notify(struct net_device *dev,
8869 u64 color_bitmap, gfp_t gfp)
8870{
8871 return cfg80211_bss_color_notify(dev, gfp,
8872 NL80211_CMD_OBSS_COLOR_COLLISION,
8873 0, color_bitmap);
8874}
8875
8876/**
8877 * cfg80211_color_change_started_notify - notify color change start
8878 * @dev: the device on which the color is switched
8879 * @count: the number of TBTTs until the color change happens
8880 *
8881 * Inform the userspace about the color change that has started.
8882 */
8883static inline int cfg80211_color_change_started_notify(struct net_device *dev,
8884 u8 count)
8885{
8886 return cfg80211_bss_color_notify(dev, GFP_KERNEL,
8887 NL80211_CMD_COLOR_CHANGE_STARTED,
8888 count, 0);
8889}
8890
8891/**
8892 * cfg80211_color_change_aborted_notify - notify color change abort
8893 * @dev: the device on which the color is switched
8894 *
8895 * Inform the userspace about the color change that has aborted.
8896 */
8897static inline int cfg80211_color_change_aborted_notify(struct net_device *dev)
8898{
8899 return cfg80211_bss_color_notify(dev, GFP_KERNEL,
8900 NL80211_CMD_COLOR_CHANGE_ABORTED,
8901 0, 0);
8902}
8903
8904/**
8905 * cfg80211_color_change_notify - notify color change completion
8906 * @dev: the device on which the color was switched
8907 *
8908 * Inform the userspace about the color change that has completed.
8909 */
8910static inline int cfg80211_color_change_notify(struct net_device *dev)
8911{
8912 return cfg80211_bss_color_notify(dev, GFP_KERNEL,
8913 NL80211_CMD_COLOR_CHANGE_COMPLETED,
8914 0, 0);
8915}
8916
8917#endif /* __NET_CFG80211_H */