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1/*
2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
4 *
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
7 *
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 * <j@w1.fi>
10 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
11 *
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004-2005, Intel Corporation
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation. See README and COPYING for
19 * more details.
20 *
21 * API Version History
22 * 1.0.x -- Initial version
23 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,
24 * various structure changes, and crypto API init method
25 */
26#ifndef LIBIPW_H
27#define LIBIPW_H
28#include <linux/if_ether.h> /* ETH_ALEN */
29#include <linux/kernel.h> /* ARRAY_SIZE */
30#include <linux/wireless.h>
31#include <linux/ieee80211.h>
32
33#include <net/lib80211.h>
34#include <net/cfg80211.h>
35
36#define LIBIPW_VERSION "git-1.1.13"
37
38#define LIBIPW_DATA_LEN 2304
39/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
40 6.2.1.1.2.
41
42 The figure in section 7.1.2 suggests a body size of up to 2312
43 bytes is allowed, which is a bit confusing, I suspect this
44 represents the 2304 bytes of real data, plus a possible 8 bytes of
45 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
46
47#define LIBIPW_1ADDR_LEN 10
48#define LIBIPW_2ADDR_LEN 16
49#define LIBIPW_3ADDR_LEN 24
50#define LIBIPW_4ADDR_LEN 30
51#define LIBIPW_FCS_LEN 4
52#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
53#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
54
55#define MIN_FRAG_THRESHOLD 256U
56#define MAX_FRAG_THRESHOLD 2346U
57
58/* QOS control */
59#define LIBIPW_QCTL_TID 0x000F
60
61/* debug macros */
62
63#ifdef CONFIG_LIBIPW_DEBUG
64extern u32 libipw_debug_level;
65#define LIBIPW_DEBUG(level, fmt, args...) \
66do { if (libipw_debug_level & (level)) \
67 printk(KERN_DEBUG "libipw: %c %s " fmt, \
68 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
69#else
70#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
71#endif /* CONFIG_LIBIPW_DEBUG */
72
73/*
74 * To use the debug system:
75 *
76 * If you are defining a new debug classification, simply add it to the #define
77 * list here in the form of:
78 *
79 * #define LIBIPW_DL_xxxx VALUE
80 *
81 * shifting value to the left one bit from the previous entry. xxxx should be
82 * the name of the classification (for example, WEP)
83 *
84 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
85 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
86 * to send output to that classification.
87 *
88 * To add your debug level to the list of levels seen when you perform
89 *
90 * % cat /proc/net/ieee80211/debug_level
91 *
92 * you simply need to add your entry to the libipw_debug_level array.
93 *
94 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
95 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
96 *
97 */
98
99#define LIBIPW_DL_INFO (1<<0)
100#define LIBIPW_DL_WX (1<<1)
101#define LIBIPW_DL_SCAN (1<<2)
102#define LIBIPW_DL_STATE (1<<3)
103#define LIBIPW_DL_MGMT (1<<4)
104#define LIBIPW_DL_FRAG (1<<5)
105#define LIBIPW_DL_DROP (1<<7)
106
107#define LIBIPW_DL_TX (1<<8)
108#define LIBIPW_DL_RX (1<<9)
109#define LIBIPW_DL_QOS (1<<31)
110
111#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
112#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
113#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
114
115#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
116#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
117#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
118#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
119#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
120#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
121#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
122#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
123#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
124#include <linux/netdevice.h>
125#include <linux/if_arp.h> /* ARPHRD_ETHER */
126
127#ifndef WIRELESS_SPY
128#define WIRELESS_SPY /* enable iwspy support */
129#endif
130#include <net/iw_handler.h> /* new driver API */
131
132#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
133
134#ifndef ETH_P_80211_RAW
135#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
136#endif
137
138/* IEEE 802.11 defines */
139
140#define P80211_OUI_LEN 3
141
142struct libipw_snap_hdr {
143
144 u8 dsap; /* always 0xAA */
145 u8 ssap; /* always 0xAA */
146 u8 ctrl; /* always 0x03 */
147 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
148
149} __packed;
150
151#define SNAP_SIZE sizeof(struct libipw_snap_hdr)
152
153#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
154#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
155#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
156
157#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
158#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
159
160#define LIBIPW_STATMASK_SIGNAL (1<<0)
161#define LIBIPW_STATMASK_RSSI (1<<1)
162#define LIBIPW_STATMASK_NOISE (1<<2)
163#define LIBIPW_STATMASK_RATE (1<<3)
164#define LIBIPW_STATMASK_WEMASK 0x7
165
166#define LIBIPW_CCK_MODULATION (1<<0)
167#define LIBIPW_OFDM_MODULATION (1<<1)
168
169#define LIBIPW_24GHZ_BAND (1<<0)
170#define LIBIPW_52GHZ_BAND (1<<1)
171
172#define LIBIPW_CCK_RATE_1MB 0x02
173#define LIBIPW_CCK_RATE_2MB 0x04
174#define LIBIPW_CCK_RATE_5MB 0x0B
175#define LIBIPW_CCK_RATE_11MB 0x16
176#define LIBIPW_OFDM_RATE_6MB 0x0C
177#define LIBIPW_OFDM_RATE_9MB 0x12
178#define LIBIPW_OFDM_RATE_12MB 0x18
179#define LIBIPW_OFDM_RATE_18MB 0x24
180#define LIBIPW_OFDM_RATE_24MB 0x30
181#define LIBIPW_OFDM_RATE_36MB 0x48
182#define LIBIPW_OFDM_RATE_48MB 0x60
183#define LIBIPW_OFDM_RATE_54MB 0x6C
184#define LIBIPW_BASIC_RATE_MASK 0x80
185
186#define LIBIPW_CCK_RATE_1MB_MASK (1<<0)
187#define LIBIPW_CCK_RATE_2MB_MASK (1<<1)
188#define LIBIPW_CCK_RATE_5MB_MASK (1<<2)
189#define LIBIPW_CCK_RATE_11MB_MASK (1<<3)
190#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)
191#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)
192#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)
193#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)
194#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)
195#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)
196#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)
197#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)
198
199#define LIBIPW_CCK_RATES_MASK 0x0000000F
200#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
201 LIBIPW_CCK_RATE_2MB_MASK)
202#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
203 LIBIPW_CCK_RATE_5MB_MASK | \
204 LIBIPW_CCK_RATE_11MB_MASK)
205
206#define LIBIPW_OFDM_RATES_MASK 0x00000FF0
207#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
208 LIBIPW_OFDM_RATE_12MB_MASK | \
209 LIBIPW_OFDM_RATE_24MB_MASK)
210#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
211 LIBIPW_OFDM_RATE_9MB_MASK | \
212 LIBIPW_OFDM_RATE_18MB_MASK | \
213 LIBIPW_OFDM_RATE_36MB_MASK | \
214 LIBIPW_OFDM_RATE_48MB_MASK | \
215 LIBIPW_OFDM_RATE_54MB_MASK)
216#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
217 LIBIPW_CCK_DEFAULT_RATES_MASK)
218
219#define LIBIPW_NUM_OFDM_RATES 8
220#define LIBIPW_NUM_CCK_RATES 4
221#define LIBIPW_OFDM_SHIFT_MASK_A 4
222
223/* NOTE: This data is for statistical purposes; not all hardware provides this
224 * information for frames received.
225 * For libipw_rx_mgt, you need to set at least the 'len' parameter.
226 */
227struct libipw_rx_stats {
228 u32 mac_time;
229 s8 rssi;
230 u8 signal;
231 u8 noise;
232 u16 rate; /* in 100 kbps */
233 u8 received_channel;
234 u8 control;
235 u8 mask;
236 u8 freq;
237 u16 len;
238 u64 tsf;
239 u32 beacon_time;
240};
241
242/* IEEE 802.11 requires that STA supports concurrent reception of at least
243 * three fragmented frames. This define can be increased to support more
244 * concurrent frames, but it should be noted that each entry can consume about
245 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
246#define LIBIPW_FRAG_CACHE_LEN 4
247
248struct libipw_frag_entry {
249 unsigned long first_frag_time;
250 unsigned int seq;
251 unsigned int last_frag;
252 struct sk_buff *skb;
253 u8 src_addr[ETH_ALEN];
254 u8 dst_addr[ETH_ALEN];
255};
256
257struct libipw_stats {
258 unsigned int tx_unicast_frames;
259 unsigned int tx_multicast_frames;
260 unsigned int tx_fragments;
261 unsigned int tx_unicast_octets;
262 unsigned int tx_multicast_octets;
263 unsigned int tx_deferred_transmissions;
264 unsigned int tx_single_retry_frames;
265 unsigned int tx_multiple_retry_frames;
266 unsigned int tx_retry_limit_exceeded;
267 unsigned int tx_discards;
268 unsigned int rx_unicast_frames;
269 unsigned int rx_multicast_frames;
270 unsigned int rx_fragments;
271 unsigned int rx_unicast_octets;
272 unsigned int rx_multicast_octets;
273 unsigned int rx_fcs_errors;
274 unsigned int rx_discards_no_buffer;
275 unsigned int tx_discards_wrong_sa;
276 unsigned int rx_discards_undecryptable;
277 unsigned int rx_message_in_msg_fragments;
278 unsigned int rx_message_in_bad_msg_fragments;
279};
280
281struct libipw_device;
282
283#define SEC_KEY_1 (1<<0)
284#define SEC_KEY_2 (1<<1)
285#define SEC_KEY_3 (1<<2)
286#define SEC_KEY_4 (1<<3)
287#define SEC_ACTIVE_KEY (1<<4)
288#define SEC_AUTH_MODE (1<<5)
289#define SEC_UNICAST_GROUP (1<<6)
290#define SEC_LEVEL (1<<7)
291#define SEC_ENABLED (1<<8)
292#define SEC_ENCRYPT (1<<9)
293
294#define SEC_LEVEL_0 0 /* None */
295#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
296#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
297#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
298#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
299
300#define SEC_ALG_NONE 0
301#define SEC_ALG_WEP 1
302#define SEC_ALG_TKIP 2
303#define SEC_ALG_CCMP 3
304
305#define WEP_KEYS 4
306#define WEP_KEY_LEN 13
307#define SCM_KEY_LEN 32
308#define SCM_TEMPORAL_KEY_LENGTH 16
309
310struct libipw_security {
311 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
312 u8 auth_mode;
313 u8 encode_alg[WEP_KEYS];
314 u8 key_sizes[WEP_KEYS];
315 u8 keys[WEP_KEYS][SCM_KEY_LEN];
316 u8 level;
317 u16 flags;
318} __packed;
319
320/*
321
322 802.11 data frame from AP
323
324 ,-------------------------------------------------------------------.
325Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
326 |------|------|---------|---------|---------|------|---------|------|
327Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
328 | | tion | (BSSID) | | | ence | data | |
329 `-------------------------------------------------------------------'
330
331Total: 28-2340 bytes
332
333*/
334
335#define BEACON_PROBE_SSID_ID_POSITION 12
336
337struct libipw_hdr_1addr {
338 __le16 frame_ctl;
339 __le16 duration_id;
340 u8 addr1[ETH_ALEN];
341 u8 payload[0];
342} __packed;
343
344struct libipw_hdr_2addr {
345 __le16 frame_ctl;
346 __le16 duration_id;
347 u8 addr1[ETH_ALEN];
348 u8 addr2[ETH_ALEN];
349 u8 payload[0];
350} __packed;
351
352struct libipw_hdr_3addr {
353 __le16 frame_ctl;
354 __le16 duration_id;
355 u8 addr1[ETH_ALEN];
356 u8 addr2[ETH_ALEN];
357 u8 addr3[ETH_ALEN];
358 __le16 seq_ctl;
359 u8 payload[0];
360} __packed;
361
362struct libipw_hdr_4addr {
363 __le16 frame_ctl;
364 __le16 duration_id;
365 u8 addr1[ETH_ALEN];
366 u8 addr2[ETH_ALEN];
367 u8 addr3[ETH_ALEN];
368 __le16 seq_ctl;
369 u8 addr4[ETH_ALEN];
370 u8 payload[0];
371} __packed;
372
373struct libipw_hdr_3addrqos {
374 __le16 frame_ctl;
375 __le16 duration_id;
376 u8 addr1[ETH_ALEN];
377 u8 addr2[ETH_ALEN];
378 u8 addr3[ETH_ALEN];
379 __le16 seq_ctl;
380 u8 payload[0];
381 __le16 qos_ctl;
382} __packed;
383
384struct libipw_info_element {
385 u8 id;
386 u8 len;
387 u8 data[0];
388} __packed;
389
390/*
391 * These are the data types that can make up management packets
392 *
393 u16 auth_algorithm;
394 u16 auth_sequence;
395 u16 beacon_interval;
396 u16 capability;
397 u8 current_ap[ETH_ALEN];
398 u16 listen_interval;
399 struct {
400 u16 association_id:14, reserved:2;
401 } __packed;
402 u32 time_stamp[2];
403 u16 reason;
404 u16 status;
405*/
406
407struct libipw_auth {
408 struct libipw_hdr_3addr header;
409 __le16 algorithm;
410 __le16 transaction;
411 __le16 status;
412 /* challenge */
413 struct libipw_info_element info_element[0];
414} __packed;
415
416struct libipw_channel_switch {
417 u8 id;
418 u8 len;
419 u8 mode;
420 u8 channel;
421 u8 count;
422} __packed;
423
424struct libipw_action {
425 struct libipw_hdr_3addr header;
426 u8 category;
427 u8 action;
428 union {
429 struct libipw_action_exchange {
430 u8 token;
431 struct libipw_info_element info_element[0];
432 } exchange;
433 struct libipw_channel_switch channel_switch;
434
435 } format;
436} __packed;
437
438struct libipw_disassoc {
439 struct libipw_hdr_3addr header;
440 __le16 reason;
441} __packed;
442
443/* Alias deauth for disassoc */
444#define libipw_deauth libipw_disassoc
445
446struct libipw_probe_request {
447 struct libipw_hdr_3addr header;
448 /* SSID, supported rates */
449 struct libipw_info_element info_element[0];
450} __packed;
451
452struct libipw_probe_response {
453 struct libipw_hdr_3addr header;
454 __le32 time_stamp[2];
455 __le16 beacon_interval;
456 __le16 capability;
457 /* SSID, supported rates, FH params, DS params,
458 * CF params, IBSS params, TIM (if beacon), RSN */
459 struct libipw_info_element info_element[0];
460} __packed;
461
462/* Alias beacon for probe_response */
463#define libipw_beacon libipw_probe_response
464
465struct libipw_assoc_request {
466 struct libipw_hdr_3addr header;
467 __le16 capability;
468 __le16 listen_interval;
469 /* SSID, supported rates, RSN */
470 struct libipw_info_element info_element[0];
471} __packed;
472
473struct libipw_reassoc_request {
474 struct libipw_hdr_3addr header;
475 __le16 capability;
476 __le16 listen_interval;
477 u8 current_ap[ETH_ALEN];
478 struct libipw_info_element info_element[0];
479} __packed;
480
481struct libipw_assoc_response {
482 struct libipw_hdr_3addr header;
483 __le16 capability;
484 __le16 status;
485 __le16 aid;
486 /* supported rates */
487 struct libipw_info_element info_element[0];
488} __packed;
489
490struct libipw_txb {
491 u8 nr_frags;
492 u8 encrypted;
493 u8 rts_included;
494 u8 reserved;
495 u16 frag_size;
496 u16 payload_size;
497 struct sk_buff *fragments[0];
498};
499
500/* SWEEP TABLE ENTRIES NUMBER */
501#define MAX_SWEEP_TAB_ENTRIES 42
502#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
503/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
504 * only use 8, and then use extended rates for the remaining supported
505 * rates. Other APs, however, stick all of their supported rates on the
506 * main rates information element... */
507#define MAX_RATES_LENGTH ((u8)12)
508#define MAX_RATES_EX_LENGTH ((u8)16)
509#define MAX_NETWORK_COUNT 128
510
511#define CRC_LENGTH 4U
512
513#define MAX_WPA_IE_LEN 64
514
515#define NETWORK_HAS_OFDM (1<<1)
516#define NETWORK_HAS_CCK (1<<2)
517
518/* QoS structure */
519#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
520#define NETWORK_HAS_QOS_INFORMATION (1<<4)
521#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
522 NETWORK_HAS_QOS_INFORMATION)
523
524/* 802.11h */
525#define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
526#define NETWORK_HAS_CSA (1<<6)
527#define NETWORK_HAS_QUIET (1<<7)
528#define NETWORK_HAS_IBSS_DFS (1<<8)
529#define NETWORK_HAS_TPC_REPORT (1<<9)
530
531#define NETWORK_HAS_ERP_VALUE (1<<10)
532
533#define QOS_QUEUE_NUM 4
534#define QOS_OUI_LEN 3
535#define QOS_OUI_TYPE 2
536#define QOS_ELEMENT_ID 221
537#define QOS_OUI_INFO_SUB_TYPE 0
538#define QOS_OUI_PARAM_SUB_TYPE 1
539#define QOS_VERSION_1 1
540#define QOS_AIFSN_MIN_VALUE 2
541
542struct libipw_qos_information_element {
543 u8 elementID;
544 u8 length;
545 u8 qui[QOS_OUI_LEN];
546 u8 qui_type;
547 u8 qui_subtype;
548 u8 version;
549 u8 ac_info;
550} __packed;
551
552struct libipw_qos_ac_parameter {
553 u8 aci_aifsn;
554 u8 ecw_min_max;
555 __le16 tx_op_limit;
556} __packed;
557
558struct libipw_qos_parameter_info {
559 struct libipw_qos_information_element info_element;
560 u8 reserved;
561 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
562} __packed;
563
564struct libipw_qos_parameters {
565 __le16 cw_min[QOS_QUEUE_NUM];
566 __le16 cw_max[QOS_QUEUE_NUM];
567 u8 aifs[QOS_QUEUE_NUM];
568 u8 flag[QOS_QUEUE_NUM];
569 __le16 tx_op_limit[QOS_QUEUE_NUM];
570} __packed;
571
572struct libipw_qos_data {
573 struct libipw_qos_parameters parameters;
574 int active;
575 int supported;
576 u8 param_count;
577 u8 old_param_count;
578};
579
580struct libipw_tim_parameters {
581 u8 tim_count;
582 u8 tim_period;
583} __packed;
584
585/*******************************************************/
586
587struct libipw_tpc_report {
588 u8 transmit_power;
589 u8 link_margin;
590} __packed;
591
592struct libipw_channel_map {
593 u8 channel;
594 u8 map;
595} __packed;
596
597struct libipw_ibss_dfs {
598 struct libipw_info_element ie;
599 u8 owner[ETH_ALEN];
600 u8 recovery_interval;
601 struct libipw_channel_map channel_map[0];
602};
603
604struct libipw_csa {
605 u8 mode;
606 u8 channel;
607 u8 count;
608} __packed;
609
610struct libipw_quiet {
611 u8 count;
612 u8 period;
613 u8 duration;
614 u8 offset;
615} __packed;
616
617struct libipw_network {
618 /* These entries are used to identify a unique network */
619 u8 bssid[ETH_ALEN];
620 u8 channel;
621 /* Ensure null-terminated for any debug msgs */
622 u8 ssid[IW_ESSID_MAX_SIZE + 1];
623 u8 ssid_len;
624
625 struct libipw_qos_data qos_data;
626
627 /* These are network statistics */
628 struct libipw_rx_stats stats;
629 u16 capability;
630 u8 rates[MAX_RATES_LENGTH];
631 u8 rates_len;
632 u8 rates_ex[MAX_RATES_EX_LENGTH];
633 u8 rates_ex_len;
634 unsigned long last_scanned;
635 u8 mode;
636 u32 flags;
637 u32 last_associate;
638 u32 time_stamp[2];
639 u16 beacon_interval;
640 u16 listen_interval;
641 u16 atim_window;
642 u8 erp_value;
643 u8 wpa_ie[MAX_WPA_IE_LEN];
644 size_t wpa_ie_len;
645 u8 rsn_ie[MAX_WPA_IE_LEN];
646 size_t rsn_ie_len;
647 struct libipw_tim_parameters tim;
648
649 /* 802.11h info */
650
651 /* Power Constraint - mandatory if spctrm mgmt required */
652 u8 power_constraint;
653
654 /* TPC Report - mandatory if spctrm mgmt required */
655 struct libipw_tpc_report tpc_report;
656
657 /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
658 * NOTE: This is variable length and so must be allocated dynamically */
659 struct libipw_ibss_dfs *ibss_dfs;
660
661 /* Channel Switch Announcement - optional if spctrm mgmt required */
662 struct libipw_csa csa;
663
664 /* Quiet - optional if spctrm mgmt required */
665 struct libipw_quiet quiet;
666
667 struct list_head list;
668};
669
670enum libipw_state {
671 LIBIPW_UNINITIALIZED = 0,
672 LIBIPW_INITIALIZED,
673 LIBIPW_ASSOCIATING,
674 LIBIPW_ASSOCIATED,
675 LIBIPW_AUTHENTICATING,
676 LIBIPW_AUTHENTICATED,
677 LIBIPW_SHUTDOWN
678};
679
680#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
681#define DEFAULT_FTS 2346
682
683#define CFG_LIBIPW_RESERVE_FCS (1<<0)
684#define CFG_LIBIPW_COMPUTE_FCS (1<<1)
685#define CFG_LIBIPW_RTS (1<<2)
686
687#define LIBIPW_24GHZ_MIN_CHANNEL 1
688#define LIBIPW_24GHZ_MAX_CHANNEL 14
689#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
690 LIBIPW_24GHZ_MIN_CHANNEL + 1)
691
692#define LIBIPW_52GHZ_MIN_CHANNEL 34
693#define LIBIPW_52GHZ_MAX_CHANNEL 165
694#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
695 LIBIPW_52GHZ_MIN_CHANNEL + 1)
696
697enum {
698 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
699 LIBIPW_CH_80211H_RULES = (1 << 1),
700 LIBIPW_CH_B_ONLY = (1 << 2),
701 LIBIPW_CH_NO_IBSS = (1 << 3),
702 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
703 LIBIPW_CH_RADAR_DETECT = (1 << 5),
704 LIBIPW_CH_INVALID = (1 << 6),
705};
706
707struct libipw_channel {
708 u32 freq; /* in MHz */
709 u8 channel;
710 u8 flags;
711 u8 max_power; /* in dBm */
712};
713
714struct libipw_geo {
715 u8 name[4];
716 u8 bg_channels;
717 u8 a_channels;
718 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
719 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
720};
721
722struct libipw_device {
723 struct net_device *dev;
724 struct wireless_dev wdev;
725 struct libipw_security sec;
726
727 /* Bookkeeping structures */
728 struct libipw_stats ieee_stats;
729
730 struct libipw_geo geo;
731 struct ieee80211_supported_band bg_band;
732 struct ieee80211_supported_band a_band;
733
734 /* Probe / Beacon management */
735 struct list_head network_free_list;
736 struct list_head network_list;
737 struct libipw_network *networks[MAX_NETWORK_COUNT];
738 int scans;
739 int scan_age;
740
741 int iw_mode; /* operating mode (IW_MODE_*) */
742 struct iw_spy_data spy_data; /* iwspy support */
743
744 spinlock_t lock;
745
746 int tx_headroom; /* Set to size of any additional room needed at front
747 * of allocated Tx SKBs */
748 u32 config;
749
750 /* WEP and other encryption related settings at the device level */
751 int open_wep; /* Set to 1 to allow unencrypted frames */
752
753 /* If the host performs {en,de}cryption, then set to 1 */
754 int host_encrypt;
755 int host_encrypt_msdu;
756 int host_decrypt;
757 /* host performs multicast decryption */
758 int host_mc_decrypt;
759
760 /* host should strip IV and ICV from protected frames */
761 /* meaningful only when hardware decryption is being used */
762 int host_strip_iv_icv;
763
764 int host_open_frag;
765 int ieee802_1x; /* is IEEE 802.1X used */
766
767 /* WPA data */
768 int wpa_enabled;
769 int drop_unencrypted;
770 int privacy_invoked;
771 size_t wpa_ie_len;
772 u8 *wpa_ie;
773
774 struct lib80211_crypt_info crypt_info;
775
776 int bcrx_sta_key; /* use individual keys to override default keys even
777 * with RX of broad/multicast frames */
778
779 /* Fragmentation structures */
780 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
781 unsigned int frag_next_idx;
782 u16 fts; /* Fragmentation Threshold */
783 u16 rts; /* RTS threshold */
784
785 /* Association info */
786 u8 bssid[ETH_ALEN];
787
788 enum libipw_state state;
789
790 int mode; /* A, B, G */
791 int modulation; /* CCK, OFDM */
792 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
793 int abg_true; /* ABG flag */
794
795 int perfect_rssi;
796 int worst_rssi;
797
798 u16 prev_seq_ctl; /* used to drop duplicate frames */
799
800 /* Callback functions */
801 void (*set_security) (struct net_device * dev,
802 struct libipw_security * sec);
803 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
804 struct net_device * dev, int pri);
805 int (*is_queue_full) (struct net_device * dev, int pri);
806
807 int (*handle_management) (struct net_device * dev,
808 struct libipw_network * network, u16 type);
809 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
810
811 /* Typical STA methods */
812 int (*handle_auth) (struct net_device * dev,
813 struct libipw_auth * auth);
814 int (*handle_deauth) (struct net_device * dev,
815 struct libipw_deauth * auth);
816 int (*handle_action) (struct net_device * dev,
817 struct libipw_action * action,
818 struct libipw_rx_stats * stats);
819 int (*handle_disassoc) (struct net_device * dev,
820 struct libipw_disassoc * assoc);
821 int (*handle_beacon) (struct net_device * dev,
822 struct libipw_beacon * beacon,
823 struct libipw_network * network);
824 int (*handle_probe_response) (struct net_device * dev,
825 struct libipw_probe_response * resp,
826 struct libipw_network * network);
827 int (*handle_probe_request) (struct net_device * dev,
828 struct libipw_probe_request * req,
829 struct libipw_rx_stats * stats);
830 int (*handle_assoc_response) (struct net_device * dev,
831 struct libipw_assoc_response * resp,
832 struct libipw_network * network);
833
834 /* Typical AP methods */
835 int (*handle_assoc_request) (struct net_device * dev);
836 int (*handle_reassoc_request) (struct net_device * dev,
837 struct libipw_reassoc_request * req);
838
839 /* This must be the last item so that it points to the data
840 * allocated beyond this structure by alloc_libipw */
841 u8 priv[0];
842};
843
844#define IEEE_A (1<<0)
845#define IEEE_B (1<<1)
846#define IEEE_G (1<<2)
847#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
848
849static inline void *libipw_priv(struct net_device *dev)
850{
851 return ((struct libipw_device *)netdev_priv(dev))->priv;
852}
853
854static inline int libipw_is_valid_mode(struct libipw_device *ieee,
855 int mode)
856{
857 /*
858 * It is possible for both access points and our device to support
859 * combinations of modes, so as long as there is one valid combination
860 * of ap/device supported modes, then return success
861 *
862 */
863 if ((mode & IEEE_A) &&
864 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
865 (ieee->freq_band & LIBIPW_52GHZ_BAND))
866 return 1;
867
868 if ((mode & IEEE_G) &&
869 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
870 (ieee->freq_band & LIBIPW_24GHZ_BAND))
871 return 1;
872
873 if ((mode & IEEE_B) &&
874 (ieee->modulation & LIBIPW_CCK_MODULATION) &&
875 (ieee->freq_band & LIBIPW_24GHZ_BAND))
876 return 1;
877
878 return 0;
879}
880
881static inline int libipw_get_hdrlen(u16 fc)
882{
883 int hdrlen = LIBIPW_3ADDR_LEN;
884 u16 stype = WLAN_FC_GET_STYPE(fc);
885
886 switch (WLAN_FC_GET_TYPE(fc)) {
887 case IEEE80211_FTYPE_DATA:
888 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
889 hdrlen = LIBIPW_4ADDR_LEN;
890 if (stype & IEEE80211_STYPE_QOS_DATA)
891 hdrlen += 2;
892 break;
893 case IEEE80211_FTYPE_CTL:
894 switch (WLAN_FC_GET_STYPE(fc)) {
895 case IEEE80211_STYPE_CTS:
896 case IEEE80211_STYPE_ACK:
897 hdrlen = LIBIPW_1ADDR_LEN;
898 break;
899 default:
900 hdrlen = LIBIPW_2ADDR_LEN;
901 break;
902 }
903 break;
904 }
905
906 return hdrlen;
907}
908
909static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
910{
911 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
912 case LIBIPW_1ADDR_LEN:
913 return ((struct libipw_hdr_1addr *)hdr)->payload;
914 case LIBIPW_2ADDR_LEN:
915 return ((struct libipw_hdr_2addr *)hdr)->payload;
916 case LIBIPW_3ADDR_LEN:
917 return ((struct libipw_hdr_3addr *)hdr)->payload;
918 case LIBIPW_4ADDR_LEN:
919 return ((struct libipw_hdr_4addr *)hdr)->payload;
920 }
921 return NULL;
922}
923
924static inline int libipw_is_ofdm_rate(u8 rate)
925{
926 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
927 case LIBIPW_OFDM_RATE_6MB:
928 case LIBIPW_OFDM_RATE_9MB:
929 case LIBIPW_OFDM_RATE_12MB:
930 case LIBIPW_OFDM_RATE_18MB:
931 case LIBIPW_OFDM_RATE_24MB:
932 case LIBIPW_OFDM_RATE_36MB:
933 case LIBIPW_OFDM_RATE_48MB:
934 case LIBIPW_OFDM_RATE_54MB:
935 return 1;
936 }
937 return 0;
938}
939
940static inline int libipw_is_cck_rate(u8 rate)
941{
942 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
943 case LIBIPW_CCK_RATE_1MB:
944 case LIBIPW_CCK_RATE_2MB:
945 case LIBIPW_CCK_RATE_5MB:
946 case LIBIPW_CCK_RATE_11MB:
947 return 1;
948 }
949 return 0;
950}
951
952/* libipw.c */
953extern void free_libipw(struct net_device *dev, int monitor);
954extern struct net_device *alloc_libipw(int sizeof_priv, int monitor);
955extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
956
957extern void libipw_networks_age(struct libipw_device *ieee,
958 unsigned long age_secs);
959
960extern int libipw_set_encryption(struct libipw_device *ieee);
961
962/* libipw_tx.c */
963extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
964 struct net_device *dev);
965extern void libipw_txb_free(struct libipw_txb *);
966
967/* libipw_rx.c */
968extern void libipw_rx_any(struct libipw_device *ieee,
969 struct sk_buff *skb, struct libipw_rx_stats *stats);
970extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
971 struct libipw_rx_stats *rx_stats);
972/* make sure to set stats->len */
973extern void libipw_rx_mgt(struct libipw_device *ieee,
974 struct libipw_hdr_4addr *header,
975 struct libipw_rx_stats *stats);
976extern void libipw_network_reset(struct libipw_network *network);
977
978/* libipw_geo.c */
979extern const struct libipw_geo *libipw_get_geo(struct libipw_device
980 *ieee);
981extern int libipw_set_geo(struct libipw_device *ieee,
982 const struct libipw_geo *geo);
983
984extern int libipw_is_valid_channel(struct libipw_device *ieee,
985 u8 channel);
986extern int libipw_channel_to_index(struct libipw_device *ieee,
987 u8 channel);
988extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
989extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
990 u8 channel);
991extern const struct libipw_channel *libipw_get_channel(struct
992 libipw_device
993 *ieee, u8 channel);
994extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
995 u8 channel);
996
997/* libipw_wx.c */
998extern int libipw_wx_get_scan(struct libipw_device *ieee,
999 struct iw_request_info *info,
1000 union iwreq_data *wrqu, char *key);
1001extern int libipw_wx_set_encode(struct libipw_device *ieee,
1002 struct iw_request_info *info,
1003 union iwreq_data *wrqu, char *key);
1004extern int libipw_wx_get_encode(struct libipw_device *ieee,
1005 struct iw_request_info *info,
1006 union iwreq_data *wrqu, char *key);
1007extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
1008 struct iw_request_info *info,
1009 union iwreq_data *wrqu, char *extra);
1010extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
1011 struct iw_request_info *info,
1012 union iwreq_data *wrqu, char *extra);
1013
1014static inline void libipw_increment_scans(struct libipw_device *ieee)
1015{
1016 ieee->scans++;
1017}
1018
1019static inline int libipw_get_scans(struct libipw_device *ieee)
1020{
1021 return ieee->scans;
1022}
1023
1024#endif /* LIBIPW_H */