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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
4 * remains copyright by the original authors
5 *
6 * Portions of the merged code are based on Host AP (software wireless
7 * LAN access point) driver for Intersil Prism2/2.5/3.
8 *
9 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
10 * <j@w1.fi>
11 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
12 *
13 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
14 * <jketreno@linux.intel.com>
15 * Copyright (c) 2004-2005, Intel Corporation
16 *
17 * API Version History
18 * 1.0.x -- Initial version
19 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
20 * various structure changes, and crypto API init method
21 */
22#ifndef LIBIPW_H
23#define LIBIPW_H
24#include <linux/if_ether.h> /* ETH_ALEN */
25#include <linux/kernel.h> /* ARRAY_SIZE */
26#include <linux/wireless.h>
27#include <linux/ieee80211.h>
28
29#include <net/lib80211.h>
30#include <net/cfg80211.h>
31
32#define LIBIPW_VERSION "git-1.1.13"
33
34#define LIBIPW_DATA_LEN 2304
35/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
36 6.2.1.1.2.
37
38 The figure in section 7.1.2 suggests a body size of up to 2312
39 bytes is allowed, which is a bit confusing, I suspect this
40 represents the 2304 bytes of real data, plus a possible 8 bytes of
41 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
42
43#define LIBIPW_1ADDR_LEN 10
44#define LIBIPW_2ADDR_LEN 16
45#define LIBIPW_3ADDR_LEN 24
46#define LIBIPW_4ADDR_LEN 30
47#define LIBIPW_FCS_LEN 4
48#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
49#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
50
51#define MIN_FRAG_THRESHOLD 256U
52#define MAX_FRAG_THRESHOLD 2346U
53
54/* QOS control */
55#define LIBIPW_QCTL_TID 0x000F
56
57/* debug macros */
58
59#ifdef CONFIG_LIBIPW_DEBUG
60extern u32 libipw_debug_level;
61#define LIBIPW_DEBUG(level, fmt, args...) \
62do { if (libipw_debug_level & (level)) \
63 printk(KERN_DEBUG "libipw: %s " fmt, __func__ , ## args); } while (0)
64#else
65#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
66#endif /* CONFIG_LIBIPW_DEBUG */
67
68/*
69 * To use the debug system:
70 *
71 * If you are defining a new debug classification, simply add it to the #define
72 * list here in the form of:
73 *
74 * #define LIBIPW_DL_xxxx VALUE
75 *
76 * shifting value to the left one bit from the previous entry. xxxx should be
77 * the name of the classification (for example, WEP)
78 *
79 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
80 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
81 * to send output to that classification.
82 *
83 * To add your debug level to the list of levels seen when you perform
84 *
85 * % cat /proc/net/ieee80211/debug_level
86 *
87 * you simply need to add your entry to the libipw_debug_level array.
88 *
89 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
90 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
91 *
92 */
93
94#define LIBIPW_DL_INFO (1<<0)
95#define LIBIPW_DL_WX (1<<1)
96#define LIBIPW_DL_SCAN (1<<2)
97#define LIBIPW_DL_STATE (1<<3)
98#define LIBIPW_DL_MGMT (1<<4)
99#define LIBIPW_DL_FRAG (1<<5)
100#define LIBIPW_DL_DROP (1<<7)
101
102#define LIBIPW_DL_TX (1<<8)
103#define LIBIPW_DL_RX (1<<9)
104#define LIBIPW_DL_QOS (1<<31)
105
106#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
107#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
108#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
109
110#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
111#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
112#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
113#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
114#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
115#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
116#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
117#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
118#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
119#include <linux/netdevice.h>
120#include <linux/if_arp.h> /* ARPHRD_ETHER */
121
122#ifndef WIRELESS_SPY
123#define WIRELESS_SPY /* enable iwspy support */
124#endif
125#include <net/iw_handler.h> /* new driver API */
126
127#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
128
129#ifndef ETH_P_80211_RAW
130#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
131#endif
132
133/* IEEE 802.11 defines */
134
135#define P80211_OUI_LEN 3
136
137struct libipw_snap_hdr {
138
139 u8 dsap; /* always 0xAA */
140 u8 ssap; /* always 0xAA */
141 u8 ctrl; /* always 0x03 */
142 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
143
144} __packed;
145
146#define SNAP_SIZE sizeof(struct libipw_snap_hdr)
147
148#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
149#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
150#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
151
152#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
153#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
154
155#define LIBIPW_STATMASK_SIGNAL (1<<0)
156#define LIBIPW_STATMASK_RSSI (1<<1)
157#define LIBIPW_STATMASK_NOISE (1<<2)
158#define LIBIPW_STATMASK_RATE (1<<3)
159#define LIBIPW_STATMASK_WEMASK 0x7
160
161#define LIBIPW_CCK_MODULATION (1<<0)
162#define LIBIPW_OFDM_MODULATION (1<<1)
163
164#define LIBIPW_24GHZ_BAND (1<<0)
165#define LIBIPW_52GHZ_BAND (1<<1)
166
167#define LIBIPW_CCK_RATE_1MB 0x02
168#define LIBIPW_CCK_RATE_2MB 0x04
169#define LIBIPW_CCK_RATE_5MB 0x0B
170#define LIBIPW_CCK_RATE_11MB 0x16
171#define LIBIPW_OFDM_RATE_6MB 0x0C
172#define LIBIPW_OFDM_RATE_9MB 0x12
173#define LIBIPW_OFDM_RATE_12MB 0x18
174#define LIBIPW_OFDM_RATE_18MB 0x24
175#define LIBIPW_OFDM_RATE_24MB 0x30
176#define LIBIPW_OFDM_RATE_36MB 0x48
177#define LIBIPW_OFDM_RATE_48MB 0x60
178#define LIBIPW_OFDM_RATE_54MB 0x6C
179#define LIBIPW_BASIC_RATE_MASK 0x80
180
181#define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
182#define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
183#define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
184#define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
185#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
186#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
187#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
188#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
189#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
190#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
191#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
192#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
193
194#define LIBIPW_CCK_RATES_MASK 0x0000000F
195#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
196 LIBIPW_CCK_RATE_2MB_MASK)
197#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
198 LIBIPW_CCK_RATE_5MB_MASK | \
199 LIBIPW_CCK_RATE_11MB_MASK)
200
201#define LIBIPW_OFDM_RATES_MASK 0x00000FF0
202#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
203 LIBIPW_OFDM_RATE_12MB_MASK | \
204 LIBIPW_OFDM_RATE_24MB_MASK)
205#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
206 LIBIPW_OFDM_RATE_9MB_MASK | \
207 LIBIPW_OFDM_RATE_18MB_MASK | \
208 LIBIPW_OFDM_RATE_36MB_MASK | \
209 LIBIPW_OFDM_RATE_48MB_MASK | \
210 LIBIPW_OFDM_RATE_54MB_MASK)
211#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
212 LIBIPW_CCK_DEFAULT_RATES_MASK)
213
214#define LIBIPW_NUM_OFDM_RATES 8
215#define LIBIPW_NUM_CCK_RATES 4
216#define LIBIPW_OFDM_SHIFT_MASK_A 4
217
218/* NOTE: This data is for statistical purposes; not all hardware provides this
219 * information for frames received.
220 * For libipw_rx_mgt, you need to set at least the 'len' parameter.
221 */
222struct libipw_rx_stats {
223 u32 mac_time;
224 s8 rssi;
225 u8 signal;
226 u8 noise;
227 u16 rate; /* in 100 kbps */
228 u8 received_channel;
229 u8 control;
230 u8 mask;
231 u8 freq;
232 u16 len;
233 u64 tsf;
234 u32 beacon_time;
235};
236
237/* IEEE 802.11 requires that STA supports concurrent reception of at least
238 * three fragmented frames. This define can be increased to support more
239 * concurrent frames, but it should be noted that each entry can consume about
240 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
241#define LIBIPW_FRAG_CACHE_LEN 4
242
243struct libipw_frag_entry {
244 unsigned long first_frag_time;
245 unsigned int seq;
246 unsigned int last_frag;
247 struct sk_buff *skb;
248 u8 src_addr[ETH_ALEN];
249 u8 dst_addr[ETH_ALEN];
250};
251
252struct libipw_stats {
253 unsigned int tx_unicast_frames;
254 unsigned int tx_multicast_frames;
255 unsigned int tx_fragments;
256 unsigned int tx_unicast_octets;
257 unsigned int tx_multicast_octets;
258 unsigned int tx_deferred_transmissions;
259 unsigned int tx_single_retry_frames;
260 unsigned int tx_multiple_retry_frames;
261 unsigned int tx_retry_limit_exceeded;
262 unsigned int tx_discards;
263 unsigned int rx_unicast_frames;
264 unsigned int rx_multicast_frames;
265 unsigned int rx_fragments;
266 unsigned int rx_unicast_octets;
267 unsigned int rx_multicast_octets;
268 unsigned int rx_fcs_errors;
269 unsigned int rx_discards_no_buffer;
270 unsigned int tx_discards_wrong_sa;
271 unsigned int rx_discards_undecryptable;
272 unsigned int rx_message_in_msg_fragments;
273 unsigned int rx_message_in_bad_msg_fragments;
274};
275
276struct libipw_device;
277
278#define SEC_KEY_1 (1<<0)
279#define SEC_KEY_2 (1<<1)
280#define SEC_KEY_3 (1<<2)
281#define SEC_KEY_4 (1<<3)
282#define SEC_ACTIVE_KEY (1<<4)
283#define SEC_AUTH_MODE (1<<5)
284#define SEC_UNICAST_GROUP (1<<6)
285#define SEC_LEVEL (1<<7)
286#define SEC_ENABLED (1<<8)
287#define SEC_ENCRYPT (1<<9)
288
289#define SEC_LEVEL_0 0 /* None */
290#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
291#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
292#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
293#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
294
295#define SEC_ALG_NONE 0
296#define SEC_ALG_WEP 1
297#define SEC_ALG_TKIP 2
298#define SEC_ALG_CCMP 3
299
300#define WEP_KEYS 4
301#define WEP_KEY_LEN 13
302#define SCM_KEY_LEN 32
303#define SCM_TEMPORAL_KEY_LENGTH 16
304
305struct libipw_security {
306 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
307 u8 auth_mode;
308 u8 encode_alg[WEP_KEYS];
309 u8 key_sizes[WEP_KEYS];
310 u8 keys[WEP_KEYS][SCM_KEY_LEN];
311 u8 level;
312 u16 flags;
313} __packed;
314
315/*
316
317 802.11 data frame from AP
318
319 ,-------------------------------------------------------------------.
320Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
321 |------|------|---------|---------|---------|------|---------|------|
322Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
323 | | tion | (BSSID) | | | ence | data | |
324 `-------------------------------------------------------------------'
325
326Total: 28-2340 bytes
327
328*/
329
330#define BEACON_PROBE_SSID_ID_POSITION 12
331
332struct libipw_hdr_1addr {
333 __le16 frame_ctl;
334 __le16 duration_id;
335 u8 addr1[ETH_ALEN];
336 u8 payload[];
337} __packed;
338
339struct libipw_hdr_2addr {
340 __le16 frame_ctl;
341 __le16 duration_id;
342 u8 addr1[ETH_ALEN];
343 u8 addr2[ETH_ALEN];
344 u8 payload[];
345} __packed;
346
347struct libipw_hdr_3addr {
348 __le16 frame_ctl;
349 __le16 duration_id;
350 u8 addr1[ETH_ALEN];
351 u8 addr2[ETH_ALEN];
352 u8 addr3[ETH_ALEN];
353 __le16 seq_ctl;
354 u8 payload[];
355} __packed;
356
357struct libipw_hdr_4addr {
358 __le16 frame_ctl;
359 __le16 duration_id;
360 u8 addr1[ETH_ALEN];
361 u8 addr2[ETH_ALEN];
362 u8 addr3[ETH_ALEN];
363 __le16 seq_ctl;
364 u8 addr4[ETH_ALEN];
365 u8 payload[];
366} __packed;
367
368struct libipw_hdr_3addrqos {
369 __le16 frame_ctl;
370 __le16 duration_id;
371 u8 addr1[ETH_ALEN];
372 u8 addr2[ETH_ALEN];
373 u8 addr3[ETH_ALEN];
374 __le16 seq_ctl;
375 u8 payload[0];
376 __le16 qos_ctl;
377} __packed;
378
379struct libipw_info_element {
380 u8 id;
381 u8 len;
382 u8 data[];
383} __packed;
384
385/*
386 * These are the data types that can make up management packets
387 *
388 u16 auth_algorithm;
389 u16 auth_sequence;
390 u16 beacon_interval;
391 u16 capability;
392 u8 current_ap[ETH_ALEN];
393 u16 listen_interval;
394 struct {
395 u16 association_id:14, reserved:2;
396 } __packed;
397 u32 time_stamp[2];
398 u16 reason;
399 u16 status;
400*/
401
402struct libipw_auth {
403 struct libipw_hdr_3addr header;
404 __le16 algorithm;
405 __le16 transaction;
406 __le16 status;
407 /* challenge */
408 struct libipw_info_element info_element[];
409} __packed;
410
411struct libipw_channel_switch {
412 u8 id;
413 u8 len;
414 u8 mode;
415 u8 channel;
416 u8 count;
417} __packed;
418
419struct libipw_action {
420 struct libipw_hdr_3addr header;
421 u8 category;
422 u8 action;
423 union {
424 struct libipw_action_exchange {
425 u8 token;
426 struct libipw_info_element info_element[0];
427 } exchange;
428 struct libipw_channel_switch channel_switch;
429
430 } format;
431} __packed;
432
433struct libipw_disassoc {
434 struct libipw_hdr_3addr header;
435 __le16 reason;
436} __packed;
437
438/* Alias deauth for disassoc */
439#define libipw_deauth libipw_disassoc
440
441struct libipw_probe_request {
442 struct libipw_hdr_3addr header;
443 /* SSID, supported rates */
444 struct libipw_info_element info_element[];
445} __packed;
446
447struct libipw_probe_response {
448 struct libipw_hdr_3addr header;
449 __le32 time_stamp[2];
450 __le16 beacon_interval;
451 __le16 capability;
452 /* SSID, supported rates, FH params, DS params,
453 * CF params, IBSS params, TIM (if beacon), RSN */
454 struct libipw_info_element info_element[];
455} __packed;
456
457/* Alias beacon for probe_response */
458#define libipw_beacon libipw_probe_response
459
460struct libipw_assoc_request {
461 struct libipw_hdr_3addr header;
462 __le16 capability;
463 __le16 listen_interval;
464 /* SSID, supported rates, RSN */
465 struct libipw_info_element info_element[];
466} __packed;
467
468struct libipw_reassoc_request {
469 struct libipw_hdr_3addr header;
470 __le16 capability;
471 __le16 listen_interval;
472 u8 current_ap[ETH_ALEN];
473 struct libipw_info_element info_element[];
474} __packed;
475
476struct libipw_assoc_response {
477 struct libipw_hdr_3addr header;
478 __le16 capability;
479 __le16 status;
480 __le16 aid;
481 /* supported rates */
482 struct libipw_info_element info_element[];
483} __packed;
484
485struct libipw_txb {
486 u8 nr_frags;
487 u8 encrypted;
488 u8 rts_included;
489 u8 reserved;
490 u16 frag_size;
491 u16 payload_size;
492 struct sk_buff *fragments[];
493};
494
495/* SWEEP TABLE ENTRIES NUMBER */
496#define MAX_SWEEP_TAB_ENTRIES 42
497#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
498/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
499 * only use 8, and then use extended rates for the remaining supported
500 * rates. Other APs, however, stick all of their supported rates on the
501 * main rates information element... */
502#define MAX_RATES_LENGTH ((u8)12)
503#define MAX_RATES_EX_LENGTH ((u8)16)
504#define MAX_NETWORK_COUNT 128
505
506#define CRC_LENGTH 4U
507
508#define MAX_WPA_IE_LEN 64
509
510#define NETWORK_HAS_OFDM (1<<1)
511#define NETWORK_HAS_CCK (1<<2)
512
513/* QoS structure */
514#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
515#define NETWORK_HAS_QOS_INFORMATION (1<<4)
516#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
517 NETWORK_HAS_QOS_INFORMATION)
518
519/* 802.11h */
520#define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
521#define NETWORK_HAS_CSA (1<<6)
522#define NETWORK_HAS_QUIET (1<<7)
523#define NETWORK_HAS_IBSS_DFS (1<<8)
524#define NETWORK_HAS_TPC_REPORT (1<<9)
525
526#define NETWORK_HAS_ERP_VALUE (1<<10)
527
528#define QOS_QUEUE_NUM 4
529#define QOS_OUI_LEN 3
530#define QOS_OUI_TYPE 2
531#define QOS_ELEMENT_ID 221
532#define QOS_OUI_INFO_SUB_TYPE 0
533#define QOS_OUI_PARAM_SUB_TYPE 1
534#define QOS_VERSION_1 1
535#define QOS_AIFSN_MIN_VALUE 2
536
537struct libipw_qos_information_element {
538 u8 elementID;
539 u8 length;
540 u8 qui[QOS_OUI_LEN];
541 u8 qui_type;
542 u8 qui_subtype;
543 u8 version;
544 u8 ac_info;
545} __packed;
546
547struct libipw_qos_ac_parameter {
548 u8 aci_aifsn;
549 u8 ecw_min_max;
550 __le16 tx_op_limit;
551} __packed;
552
553struct libipw_qos_parameter_info {
554 struct libipw_qos_information_element info_element;
555 u8 reserved;
556 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
557} __packed;
558
559struct libipw_qos_parameters {
560 __le16 cw_min[QOS_QUEUE_NUM];
561 __le16 cw_max[QOS_QUEUE_NUM];
562 u8 aifs[QOS_QUEUE_NUM];
563 u8 flag[QOS_QUEUE_NUM];
564 __le16 tx_op_limit[QOS_QUEUE_NUM];
565} __packed;
566
567struct libipw_qos_data {
568 struct libipw_qos_parameters parameters;
569 int active;
570 int supported;
571 u8 param_count;
572 u8 old_param_count;
573};
574
575struct libipw_tim_parameters {
576 u8 tim_count;
577 u8 tim_period;
578} __packed;
579
580/*******************************************************/
581
582struct libipw_tpc_report {
583 u8 transmit_power;
584 u8 link_margin;
585} __packed;
586
587struct libipw_channel_map {
588 u8 channel;
589 u8 map;
590} __packed;
591
592struct libipw_ibss_dfs {
593 struct libipw_info_element ie;
594 u8 owner[ETH_ALEN];
595 u8 recovery_interval;
596 struct libipw_channel_map channel_map[];
597};
598
599struct libipw_csa {
600 u8 mode;
601 u8 channel;
602 u8 count;
603} __packed;
604
605struct libipw_quiet {
606 u8 count;
607 u8 period;
608 u8 duration;
609 u8 offset;
610} __packed;
611
612struct libipw_network {
613 /* These entries are used to identify a unique network */
614 u8 bssid[ETH_ALEN];
615 u8 channel;
616 /* Ensure null-terminated for any debug msgs */
617 u8 ssid[IW_ESSID_MAX_SIZE + 1];
618 u8 ssid_len;
619
620 struct libipw_qos_data qos_data;
621
622 /* These are network statistics */
623 struct libipw_rx_stats stats;
624 u16 capability;
625 u8 rates[MAX_RATES_LENGTH];
626 u8 rates_len;
627 u8 rates_ex[MAX_RATES_EX_LENGTH];
628 u8 rates_ex_len;
629 unsigned long last_scanned;
630 u8 mode;
631 u32 flags;
632 u32 last_associate;
633 u32 time_stamp[2];
634 u16 beacon_interval;
635 u16 listen_interval;
636 u16 atim_window;
637 u8 erp_value;
638 u8 wpa_ie[MAX_WPA_IE_LEN];
639 size_t wpa_ie_len;
640 u8 rsn_ie[MAX_WPA_IE_LEN];
641 size_t rsn_ie_len;
642 struct libipw_tim_parameters tim;
643
644 /* 802.11h info */
645
646 /* Power Constraint - mandatory if spctrm mgmt required */
647 u8 power_constraint;
648
649 /* TPC Report - mandatory if spctrm mgmt required */
650 struct libipw_tpc_report tpc_report;
651
652 /* Channel Switch Announcement - optional if spctrm mgmt required */
653 struct libipw_csa csa;
654
655 /* Quiet - optional if spctrm mgmt required */
656 struct libipw_quiet quiet;
657
658 struct list_head list;
659};
660
661enum libipw_state {
662 LIBIPW_UNINITIALIZED = 0,
663 LIBIPW_INITIALIZED,
664 LIBIPW_ASSOCIATING,
665 LIBIPW_ASSOCIATED,
666 LIBIPW_AUTHENTICATING,
667 LIBIPW_AUTHENTICATED,
668 LIBIPW_SHUTDOWN
669};
670
671#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
672#define DEFAULT_FTS 2346
673
674#define CFG_LIBIPW_RESERVE_FCS (1<<0)
675#define CFG_LIBIPW_COMPUTE_FCS (1<<1)
676#define CFG_LIBIPW_RTS (1<<2)
677
678#define LIBIPW_24GHZ_MIN_CHANNEL 1
679#define LIBIPW_24GHZ_MAX_CHANNEL 14
680#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
681 LIBIPW_24GHZ_MIN_CHANNEL + 1)
682
683#define LIBIPW_52GHZ_MIN_CHANNEL 34
684#define LIBIPW_52GHZ_MAX_CHANNEL 165
685#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
686 LIBIPW_52GHZ_MIN_CHANNEL + 1)
687
688enum {
689 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
690 LIBIPW_CH_80211H_RULES = (1 << 1),
691 LIBIPW_CH_B_ONLY = (1 << 2),
692 LIBIPW_CH_NO_IBSS = (1 << 3),
693 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
694 LIBIPW_CH_RADAR_DETECT = (1 << 5),
695 LIBIPW_CH_INVALID = (1 << 6),
696};
697
698struct libipw_channel {
699 u32 freq; /* in MHz */
700 u8 channel;
701 u8 flags;
702 u8 max_power; /* in dBm */
703};
704
705struct libipw_geo {
706 u8 name[4];
707 u8 bg_channels;
708 u8 a_channels;
709 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
710 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
711};
712
713struct libipw_device {
714 struct net_device *dev;
715 struct wireless_dev wdev;
716 struct libipw_security sec;
717
718 /* Bookkeeping structures */
719 struct libipw_stats ieee_stats;
720
721 struct libipw_geo geo;
722 struct ieee80211_supported_band bg_band;
723 struct ieee80211_supported_band a_band;
724
725 /* Probe / Beacon management */
726 struct list_head network_free_list;
727 struct list_head network_list;
728 struct libipw_network *networks[MAX_NETWORK_COUNT];
729 int scans;
730 int scan_age;
731
732 int iw_mode; /* operating mode (IW_MODE_*) */
733 struct iw_spy_data spy_data; /* iwspy support */
734
735 spinlock_t lock;
736
737 int tx_headroom; /* Set to size of any additional room needed at front
738 * of allocated Tx SKBs */
739 u32 config;
740
741 /* WEP and other encryption related settings at the device level */
742 int open_wep; /* Set to 1 to allow unencrypted frames */
743
744 /* If the host performs {en,de}cryption, then set to 1 */
745 int host_encrypt;
746 int host_encrypt_msdu;
747 int host_decrypt;
748 /* host performs multicast decryption */
749 int host_mc_decrypt;
750
751 /* host should strip IV and ICV from protected frames */
752 /* meaningful only when hardware decryption is being used */
753 int host_strip_iv_icv;
754
755 int host_open_frag;
756 int ieee802_1x; /* is IEEE 802.1X used */
757
758 /* WPA data */
759 int wpa_enabled;
760 int drop_unencrypted;
761 int privacy_invoked;
762 size_t wpa_ie_len;
763 u8 *wpa_ie;
764
765 struct lib80211_crypt_info crypt_info;
766
767 int bcrx_sta_key; /* use individual keys to override default keys even
768 * with RX of broad/multicast frames */
769
770 /* Fragmentation structures */
771 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
772 unsigned int frag_next_idx;
773 u16 fts; /* Fragmentation Threshold */
774 u16 rts; /* RTS threshold */
775
776 /* Association info */
777 u8 bssid[ETH_ALEN];
778
779 enum libipw_state state;
780
781 int mode; /* A, B, G */
782 int modulation; /* CCK, OFDM */
783 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
784 int abg_true; /* ABG flag */
785
786 int perfect_rssi;
787 int worst_rssi;
788
789 u16 prev_seq_ctl; /* used to drop duplicate frames */
790
791 /* Callback functions */
792 void (*set_security) (struct net_device * dev,
793 struct libipw_security * sec);
794 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
795 struct net_device * dev, int pri);
796 int (*is_queue_full) (struct net_device * dev, int pri);
797
798 int (*handle_management) (struct net_device * dev,
799 struct libipw_network * network, u16 type);
800 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
801
802 /* Typical STA methods */
803 int (*handle_auth) (struct net_device * dev,
804 struct libipw_auth * auth);
805 int (*handle_deauth) (struct net_device * dev,
806 struct libipw_deauth * auth);
807 int (*handle_action) (struct net_device * dev,
808 struct libipw_action * action,
809 struct libipw_rx_stats * stats);
810 int (*handle_disassoc) (struct net_device * dev,
811 struct libipw_disassoc * assoc);
812 int (*handle_beacon) (struct net_device * dev,
813 struct libipw_beacon * beacon,
814 struct libipw_network * network);
815 int (*handle_probe_response) (struct net_device * dev,
816 struct libipw_probe_response * resp,
817 struct libipw_network * network);
818 int (*handle_probe_request) (struct net_device * dev,
819 struct libipw_probe_request * req,
820 struct libipw_rx_stats * stats);
821 int (*handle_assoc_response) (struct net_device * dev,
822 struct libipw_assoc_response * resp,
823 struct libipw_network * network);
824
825 /* Typical AP methods */
826 int (*handle_assoc_request) (struct net_device * dev);
827 int (*handle_reassoc_request) (struct net_device * dev,
828 struct libipw_reassoc_request * req);
829
830 /* This must be the last item so that it points to the data
831 * allocated beyond this structure by alloc_libipw */
832 u8 priv[];
833};
834
835#define IEEE_A (1<<0)
836#define IEEE_B (1<<1)
837#define IEEE_G (1<<2)
838#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
839
840static inline void *libipw_priv(struct net_device *dev)
841{
842 return ((struct libipw_device *)netdev_priv(dev))->priv;
843}
844
845static inline int libipw_is_valid_mode(struct libipw_device *ieee,
846 int mode)
847{
848 /*
849 * It is possible for both access points and our device to support
850 * combinations of modes, so as long as there is one valid combination
851 * of ap/device supported modes, then return success
852 *
853 */
854 if ((mode & IEEE_A) &&
855 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
856 (ieee->freq_band & LIBIPW_52GHZ_BAND))
857 return 1;
858
859 if ((mode & IEEE_G) &&
860 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
861 (ieee->freq_band & LIBIPW_24GHZ_BAND))
862 return 1;
863
864 if ((mode & IEEE_B) &&
865 (ieee->modulation & LIBIPW_CCK_MODULATION) &&
866 (ieee->freq_band & LIBIPW_24GHZ_BAND))
867 return 1;
868
869 return 0;
870}
871
872static inline int libipw_get_hdrlen(u16 fc)
873{
874 int hdrlen = LIBIPW_3ADDR_LEN;
875 u16 stype = WLAN_FC_GET_STYPE(fc);
876
877 switch (WLAN_FC_GET_TYPE(fc)) {
878 case IEEE80211_FTYPE_DATA:
879 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
880 hdrlen = LIBIPW_4ADDR_LEN;
881 if (stype & IEEE80211_STYPE_QOS_DATA)
882 hdrlen += 2;
883 break;
884 case IEEE80211_FTYPE_CTL:
885 switch (WLAN_FC_GET_STYPE(fc)) {
886 case IEEE80211_STYPE_CTS:
887 case IEEE80211_STYPE_ACK:
888 hdrlen = LIBIPW_1ADDR_LEN;
889 break;
890 default:
891 hdrlen = LIBIPW_2ADDR_LEN;
892 break;
893 }
894 break;
895 }
896
897 return hdrlen;
898}
899
900static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
901{
902 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
903 case LIBIPW_1ADDR_LEN:
904 return ((struct libipw_hdr_1addr *)hdr)->payload;
905 case LIBIPW_2ADDR_LEN:
906 return ((struct libipw_hdr_2addr *)hdr)->payload;
907 case LIBIPW_3ADDR_LEN:
908 return ((struct libipw_hdr_3addr *)hdr)->payload;
909 case LIBIPW_4ADDR_LEN:
910 return ((struct libipw_hdr_4addr *)hdr)->payload;
911 }
912 return NULL;
913}
914
915static inline int libipw_is_ofdm_rate(u8 rate)
916{
917 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
918 case LIBIPW_OFDM_RATE_6MB:
919 case LIBIPW_OFDM_RATE_9MB:
920 case LIBIPW_OFDM_RATE_12MB:
921 case LIBIPW_OFDM_RATE_18MB:
922 case LIBIPW_OFDM_RATE_24MB:
923 case LIBIPW_OFDM_RATE_36MB:
924 case LIBIPW_OFDM_RATE_48MB:
925 case LIBIPW_OFDM_RATE_54MB:
926 return 1;
927 }
928 return 0;
929}
930
931static inline int libipw_is_cck_rate(u8 rate)
932{
933 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
934 case LIBIPW_CCK_RATE_1MB:
935 case LIBIPW_CCK_RATE_2MB:
936 case LIBIPW_CCK_RATE_5MB:
937 case LIBIPW_CCK_RATE_11MB:
938 return 1;
939 }
940 return 0;
941}
942
943/* libipw.c */
944void free_libipw(struct net_device *dev, int monitor);
945struct net_device *alloc_libipw(int sizeof_priv, int monitor);
946
947void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs);
948
949int libipw_set_encryption(struct libipw_device *ieee);
950
951/* libipw_tx.c */
952netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);
953void libipw_txb_free(struct libipw_txb *);
954
955/* libipw_rx.c */
956void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb,
957 struct libipw_rx_stats *stats);
958int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
959 struct libipw_rx_stats *rx_stats);
960/* make sure to set stats->len */
961void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,
962 struct libipw_rx_stats *stats);
963
964/* libipw_geo.c */
965const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);
966void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);
967
968int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);
969int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);
970u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
971u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);
972const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,
973 u8 channel);
974u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);
975
976/* libipw_wx.c */
977int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,
978 union iwreq_data *wrqu, char *key);
979int libipw_wx_set_encode(struct libipw_device *ieee,
980 struct iw_request_info *info, union iwreq_data *wrqu,
981 char *key);
982int libipw_wx_get_encode(struct libipw_device *ieee,
983 struct iw_request_info *info, union iwreq_data *wrqu,
984 char *key);
985int libipw_wx_set_encodeext(struct libipw_device *ieee,
986 struct iw_request_info *info,
987 union iwreq_data *wrqu, char *extra);
988int libipw_wx_get_encodeext(struct libipw_device *ieee,
989 struct iw_request_info *info,
990 union iwreq_data *wrqu, char *extra);
991
992static inline void libipw_increment_scans(struct libipw_device *ieee)
993{
994 ieee->scans++;
995}
996
997static inline int libipw_get_scans(struct libipw_device *ieee)
998{
999 return ieee->scans;
1000}
1001
1002#endif /* LIBIPW_H */