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Commit | Line | Data |
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b453872c JG |
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 | |
85d32e7b JM |
9 | * <j@w1.fi> |
10 | * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> | |
b453872c JG |
11 | * |
12 | * Adaption to a generic IEEE 802.11 stack by James Ketrenos | |
13 | * <jketreno@linux.intel.com> | |
ebeaddcc | 14 | * Copyright (c) 2004-2005, Intel Corporation |
b453872c JG |
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. | |
31696160 JK |
20 | * |
21 | * API Version History | |
22 | * 1.0.x -- Initial version | |
23 | * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs, | |
24 | * various structure changes, and crypto API init method | |
b453872c JG |
25 | */ |
26 | #ifndef IEEE80211_H | |
27 | #define IEEE80211_H | |
74079fdc JK |
28 | #include <linux/if_ether.h> /* ETH_ALEN */ |
29 | #include <linux/kernel.h> /* ARRAY_SIZE */ | |
b7721ff9 | 30 | #include <linux/wireless.h> |
72118015 | 31 | #include <linux/ieee80211.h> |
b453872c | 32 | |
274bfb8d JL |
33 | #include <net/lib80211.h> |
34 | ||
45a62ab3 | 35 | #define IEEE80211_VERSION "git-1.1.13" |
31696160 | 36 | |
b453872c JG |
37 | #define IEEE80211_DATA_LEN 2304 |
38 | /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section | |
39 | 6.2.1.1.2. | |
40 | ||
41 | The figure in section 7.1.2 suggests a body size of up to 2312 | |
42 | bytes is allowed, which is a bit confusing, I suspect this | |
43 | represents the 2304 bytes of real data, plus a possible 8 bytes of | |
44 | WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ | |
45 | ||
286d9747 JB |
46 | #define IEEE80211_1ADDR_LEN 10 |
47 | #define IEEE80211_2ADDR_LEN 16 | |
b453872c JG |
48 | #define IEEE80211_3ADDR_LEN 24 |
49 | #define IEEE80211_4ADDR_LEN 30 | |
50 | #define IEEE80211_FCS_LEN 4 | |
ee34af37 JK |
51 | #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) |
52 | #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) | |
b453872c JG |
53 | |
54 | #define MIN_FRAG_THRESHOLD 256U | |
55 | #define MAX_FRAG_THRESHOLD 2346U | |
56 | ||
ea284152 ZY |
57 | /* QOS control */ |
58 | #define IEEE80211_QCTL_TID 0x000F | |
59 | ||
b453872c JG |
60 | /* debug macros */ |
61 | ||
3756162b | 62 | #ifdef CONFIG_LIBIPW_DEBUG |
b453872c JG |
63 | extern u32 ieee80211_debug_level; |
64 | #define IEEE80211_DEBUG(level, fmt, args...) \ | |
65 | do { if (ieee80211_debug_level & (level)) \ | |
66 | printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ | |
d5c003b4 | 67 | in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) |
92468c53 GC |
68 | static inline bool ieee80211_ratelimit_debug(u32 level) |
69 | { | |
70 | return (ieee80211_debug_level & level) && net_ratelimit(); | |
71 | } | |
b453872c JG |
72 | #else |
73 | #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) | |
92468c53 GC |
74 | static inline bool ieee80211_ratelimit_debug(u32 level) |
75 | { | |
76 | return false; | |
77 | } | |
3756162b | 78 | #endif /* CONFIG_LIBIPW_DEBUG */ |
e88187ee | 79 | |
b453872c | 80 | /* |
e88187ee | 81 | * To use the debug system: |
b453872c JG |
82 | * |
83 | * If you are defining a new debug classification, simply add it to the #define | |
84 | * list here in the form of: | |
85 | * | |
86 | * #define IEEE80211_DL_xxxx VALUE | |
87 | * | |
88 | * shifting value to the left one bit from the previous entry. xxxx should be | |
89 | * the name of the classification (for example, WEP) | |
90 | * | |
91 | * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your | |
92 | * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want | |
93 | * to send output to that classification. | |
94 | * | |
95 | * To add your debug level to the list of levels seen when you perform | |
96 | * | |
91cb70c1 | 97 | * % cat /proc/net/ieee80211/debug_level |
b453872c | 98 | * |
91cb70c1 | 99 | * you simply need to add your entry to the ieee80211_debug_level array. |
b453872c | 100 | * |
91cb70c1 | 101 | * If you do not see debug_level in /proc/net/ieee80211 then you do not have |
3756162b | 102 | * CONFIG_LIBIPW_DEBUG defined in your kernel configuration |
b453872c JG |
103 | * |
104 | */ | |
105 | ||
106 | #define IEEE80211_DL_INFO (1<<0) | |
107 | #define IEEE80211_DL_WX (1<<1) | |
108 | #define IEEE80211_DL_SCAN (1<<2) | |
109 | #define IEEE80211_DL_STATE (1<<3) | |
110 | #define IEEE80211_DL_MGMT (1<<4) | |
111 | #define IEEE80211_DL_FRAG (1<<5) | |
b453872c JG |
112 | #define IEEE80211_DL_DROP (1<<7) |
113 | ||
114 | #define IEEE80211_DL_TX (1<<8) | |
115 | #define IEEE80211_DL_RX (1<<9) | |
9e8571af | 116 | #define IEEE80211_DL_QOS (1<<31) |
b453872c JG |
117 | |
118 | #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) | |
119 | #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) | |
120 | #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a) | |
121 | ||
122 | #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a) | |
123 | #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a) | |
124 | #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a) | |
125 | #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a) | |
126 | #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a) | |
b453872c JG |
127 | #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a) |
128 | #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a) | |
129 | #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a) | |
9e8571af | 130 | #define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a) |
b453872c | 131 | #include <linux/netdevice.h> |
74079fdc | 132 | #include <linux/if_arp.h> /* ARPHRD_ETHER */ |
b453872c JG |
133 | |
134 | #ifndef WIRELESS_SPY | |
099c5bb1 | 135 | #define WIRELESS_SPY /* enable iwspy support */ |
b453872c | 136 | #endif |
099c5bb1 | 137 | #include <net/iw_handler.h> /* new driver API */ |
b453872c | 138 | |
74079fdc | 139 | #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ |
b453872c JG |
140 | |
141 | #ifndef ETH_P_80211_RAW | |
142 | #define ETH_P_80211_RAW (ETH_P_ECONET + 1) | |
143 | #endif | |
144 | ||
145 | /* IEEE 802.11 defines */ | |
146 | ||
147 | #define P80211_OUI_LEN 3 | |
148 | ||
149 | struct ieee80211_snap_hdr { | |
150 | ||
74079fdc JK |
151 | u8 dsap; /* always 0xAA */ |
152 | u8 ssap; /* always 0xAA */ | |
153 | u8 ctrl; /* always 0x03 */ | |
154 | u8 oui[P80211_OUI_LEN]; /* organizational universal id */ | |
b453872c JG |
155 | |
156 | } __attribute__ ((packed)); | |
157 | ||
158 | #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) | |
159 | ||
f13baae4 | 160 | #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) |
b453872c JG |
161 | #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) |
162 | #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) | |
163 | ||
164 | #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) | |
3eb54605 | 165 | #define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) |
b453872c | 166 | |
b453872c JG |
167 | #define IEEE80211_STATMASK_SIGNAL (1<<0) |
168 | #define IEEE80211_STATMASK_RSSI (1<<1) | |
169 | #define IEEE80211_STATMASK_NOISE (1<<2) | |
170 | #define IEEE80211_STATMASK_RATE (1<<3) | |
171 | #define IEEE80211_STATMASK_WEMASK 0x7 | |
172 | ||
b453872c JG |
173 | #define IEEE80211_CCK_MODULATION (1<<0) |
174 | #define IEEE80211_OFDM_MODULATION (1<<1) | |
175 | ||
176 | #define IEEE80211_24GHZ_BAND (1<<0) | |
177 | #define IEEE80211_52GHZ_BAND (1<<1) | |
178 | ||
179 | #define IEEE80211_CCK_RATE_1MB 0x02 | |
180 | #define IEEE80211_CCK_RATE_2MB 0x04 | |
181 | #define IEEE80211_CCK_RATE_5MB 0x0B | |
182 | #define IEEE80211_CCK_RATE_11MB 0x16 | |
183 | #define IEEE80211_OFDM_RATE_6MB 0x0C | |
184 | #define IEEE80211_OFDM_RATE_9MB 0x12 | |
185 | #define IEEE80211_OFDM_RATE_12MB 0x18 | |
186 | #define IEEE80211_OFDM_RATE_18MB 0x24 | |
187 | #define IEEE80211_OFDM_RATE_24MB 0x30 | |
188 | #define IEEE80211_OFDM_RATE_36MB 0x48 | |
189 | #define IEEE80211_OFDM_RATE_48MB 0x60 | |
190 | #define IEEE80211_OFDM_RATE_54MB 0x6C | |
191 | #define IEEE80211_BASIC_RATE_MASK 0x80 | |
192 | ||
193 | #define IEEE80211_CCK_RATE_1MB_MASK (1<<0) | |
194 | #define IEEE80211_CCK_RATE_2MB_MASK (1<<1) | |
195 | #define IEEE80211_CCK_RATE_5MB_MASK (1<<2) | |
196 | #define IEEE80211_CCK_RATE_11MB_MASK (1<<3) | |
197 | #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) | |
198 | #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) | |
199 | #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) | |
200 | #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) | |
201 | #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) | |
202 | #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) | |
203 | #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) | |
204 | #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) | |
205 | ||
206 | #define IEEE80211_CCK_RATES_MASK 0x0000000F | |
207 | #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ | |
208 | IEEE80211_CCK_RATE_2MB_MASK) | |
209 | #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ | |
210 | IEEE80211_CCK_RATE_5MB_MASK | \ | |
211 | IEEE80211_CCK_RATE_11MB_MASK) | |
212 | ||
213 | #define IEEE80211_OFDM_RATES_MASK 0x00000FF0 | |
214 | #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ | |
215 | IEEE80211_OFDM_RATE_12MB_MASK | \ | |
216 | IEEE80211_OFDM_RATE_24MB_MASK) | |
217 | #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ | |
218 | IEEE80211_OFDM_RATE_9MB_MASK | \ | |
219 | IEEE80211_OFDM_RATE_18MB_MASK | \ | |
220 | IEEE80211_OFDM_RATE_36MB_MASK | \ | |
221 | IEEE80211_OFDM_RATE_48MB_MASK | \ | |
222 | IEEE80211_OFDM_RATE_54MB_MASK) | |
223 | #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ | |
224 | IEEE80211_CCK_DEFAULT_RATES_MASK) | |
225 | ||
226 | #define IEEE80211_NUM_OFDM_RATES 8 | |
227 | #define IEEE80211_NUM_CCK_RATES 4 | |
228 | #define IEEE80211_OFDM_SHIFT_MASK_A 4 | |
229 | ||
b453872c | 230 | /* NOTE: This data is for statistical purposes; not all hardware provides this |
c9fa7d5d JB |
231 | * information for frames received. |
232 | * For ieee80211_rx_mgt, you need to set at least the 'len' parameter. | |
233 | */ | |
b453872c JG |
234 | struct ieee80211_rx_stats { |
235 | u32 mac_time; | |
236 | s8 rssi; | |
237 | u8 signal; | |
238 | u8 noise; | |
74079fdc | 239 | u16 rate; /* in 100 kbps */ |
b453872c JG |
240 | u8 received_channel; |
241 | u8 control; | |
242 | u8 mask; | |
243 | u8 freq; | |
244 | u16 len; | |
b79e20b6 ZY |
245 | u64 tsf; |
246 | u32 beacon_time; | |
b453872c JG |
247 | }; |
248 | ||
249 | /* IEEE 802.11 requires that STA supports concurrent reception of at least | |
250 | * three fragmented frames. This define can be increased to support more | |
251 | * concurrent frames, but it should be noted that each entry can consume about | |
252 | * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ | |
253 | #define IEEE80211_FRAG_CACHE_LEN 4 | |
254 | ||
255 | struct ieee80211_frag_entry { | |
256 | unsigned long first_frag_time; | |
257 | unsigned int seq; | |
258 | unsigned int last_frag; | |
259 | struct sk_buff *skb; | |
260 | u8 src_addr[ETH_ALEN]; | |
261 | u8 dst_addr[ETH_ALEN]; | |
262 | }; | |
263 | ||
264 | struct ieee80211_stats { | |
265 | unsigned int tx_unicast_frames; | |
266 | unsigned int tx_multicast_frames; | |
267 | unsigned int tx_fragments; | |
268 | unsigned int tx_unicast_octets; | |
269 | unsigned int tx_multicast_octets; | |
270 | unsigned int tx_deferred_transmissions; | |
271 | unsigned int tx_single_retry_frames; | |
272 | unsigned int tx_multiple_retry_frames; | |
273 | unsigned int tx_retry_limit_exceeded; | |
274 | unsigned int tx_discards; | |
275 | unsigned int rx_unicast_frames; | |
276 | unsigned int rx_multicast_frames; | |
277 | unsigned int rx_fragments; | |
278 | unsigned int rx_unicast_octets; | |
279 | unsigned int rx_multicast_octets; | |
280 | unsigned int rx_fcs_errors; | |
281 | unsigned int rx_discards_no_buffer; | |
282 | unsigned int tx_discards_wrong_sa; | |
283 | unsigned int rx_discards_undecryptable; | |
284 | unsigned int rx_message_in_msg_fragments; | |
285 | unsigned int rx_message_in_bad_msg_fragments; | |
286 | }; | |
287 | ||
288 | struct ieee80211_device; | |
289 | ||
f1bf6638 JK |
290 | #define SEC_KEY_1 (1<<0) |
291 | #define SEC_KEY_2 (1<<1) | |
292 | #define SEC_KEY_3 (1<<2) | |
293 | #define SEC_KEY_4 (1<<3) | |
294 | #define SEC_ACTIVE_KEY (1<<4) | |
295 | #define SEC_AUTH_MODE (1<<5) | |
296 | #define SEC_UNICAST_GROUP (1<<6) | |
297 | #define SEC_LEVEL (1<<7) | |
298 | #define SEC_ENABLED (1<<8) | |
259bf1fd | 299 | #define SEC_ENCRYPT (1<<9) |
f1bf6638 JK |
300 | |
301 | #define SEC_LEVEL_0 0 /* None */ | |
302 | #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ | |
303 | #define SEC_LEVEL_2 2 /* Level 1 + TKIP */ | |
304 | #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ | |
305 | #define SEC_LEVEL_3 4 /* Level 2 + CCMP */ | |
306 | ||
e0d369d1 JK |
307 | #define SEC_ALG_NONE 0 |
308 | #define SEC_ALG_WEP 1 | |
309 | #define SEC_ALG_TKIP 2 | |
310 | #define SEC_ALG_CCMP 3 | |
311 | ||
f1bf6638 JK |
312 | #define WEP_KEYS 4 |
313 | #define WEP_KEY_LEN 13 | |
314 | #define SCM_KEY_LEN 32 | |
315 | #define SCM_TEMPORAL_KEY_LENGTH 16 | |
b453872c JG |
316 | |
317 | struct ieee80211_security { | |
0f202aa2 JL |
318 | u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1; |
319 | u8 auth_mode; | |
e0d369d1 | 320 | u8 encode_alg[WEP_KEYS]; |
b453872c | 321 | u8 key_sizes[WEP_KEYS]; |
f1bf6638 | 322 | u8 keys[WEP_KEYS][SCM_KEY_LEN]; |
b453872c JG |
323 | u8 level; |
324 | u16 flags; | |
325 | } __attribute__ ((packed)); | |
326 | ||
b453872c JG |
327 | /* |
328 | ||
329 | 802.11 data frame from AP | |
330 | ||
331 | ,-------------------------------------------------------------------. | |
332 | Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | | |
333 | |------|------|---------|---------|---------|------|---------|------| | |
334 | Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | | |
335 | | | tion | (BSSID) | | | ence | data | | | |
336 | `-------------------------------------------------------------------' | |
337 | ||
338 | Total: 28-2340 bytes | |
339 | ||
340 | */ | |
341 | ||
b453872c JG |
342 | #define BEACON_PROBE_SSID_ID_POSITION 12 |
343 | ||
ee34af37 | 344 | struct ieee80211_hdr_1addr { |
cdcfc210 JK |
345 | __le16 frame_ctl; |
346 | __le16 duration_id; | |
ee34af37 JK |
347 | u8 addr1[ETH_ALEN]; |
348 | u8 payload[0]; | |
349 | } __attribute__ ((packed)); | |
350 | ||
351 | struct ieee80211_hdr_2addr { | |
cdcfc210 JK |
352 | __le16 frame_ctl; |
353 | __le16 duration_id; | |
ee34af37 JK |
354 | u8 addr1[ETH_ALEN]; |
355 | u8 addr2[ETH_ALEN]; | |
356 | u8 payload[0]; | |
357 | } __attribute__ ((packed)); | |
358 | ||
359 | struct ieee80211_hdr_3addr { | |
cdcfc210 JK |
360 | __le16 frame_ctl; |
361 | __le16 duration_id; | |
ee34af37 JK |
362 | u8 addr1[ETH_ALEN]; |
363 | u8 addr2[ETH_ALEN]; | |
364 | u8 addr3[ETH_ALEN]; | |
cdcfc210 | 365 | __le16 seq_ctl; |
ee34af37 JK |
366 | u8 payload[0]; |
367 | } __attribute__ ((packed)); | |
368 | ||
369 | struct ieee80211_hdr_4addr { | |
cdcfc210 JK |
370 | __le16 frame_ctl; |
371 | __le16 duration_id; | |
ee34af37 JK |
372 | u8 addr1[ETH_ALEN]; |
373 | u8 addr2[ETH_ALEN]; | |
374 | u8 addr3[ETH_ALEN]; | |
cdcfc210 | 375 | __le16 seq_ctl; |
ee34af37 JK |
376 | u8 addr4[ETH_ALEN]; |
377 | u8 payload[0]; | |
378 | } __attribute__ ((packed)); | |
379 | ||
9e8571af | 380 | struct ieee80211_hdr_3addrqos { |
cdcfc210 JK |
381 | __le16 frame_ctl; |
382 | __le16 duration_id; | |
9e8571af JK |
383 | u8 addr1[ETH_ALEN]; |
384 | u8 addr2[ETH_ALEN]; | |
385 | u8 addr3[ETH_ALEN]; | |
cdcfc210 | 386 | __le16 seq_ctl; |
9e8571af | 387 | u8 payload[0]; |
cdcfc210 | 388 | __le16 qos_ctl; |
9e8571af JK |
389 | } __attribute__ ((packed)); |
390 | ||
b453872c JG |
391 | struct ieee80211_info_element { |
392 | u8 id; | |
393 | u8 len; | |
394 | u8 data[0]; | |
395 | } __attribute__ ((packed)); | |
396 | ||
397 | /* | |
398 | * These are the data types that can make up management packets | |
399 | * | |
400 | u16 auth_algorithm; | |
401 | u16 auth_sequence; | |
402 | u16 beacon_interval; | |
403 | u16 capability; | |
404 | u8 current_ap[ETH_ALEN]; | |
405 | u16 listen_interval; | |
406 | struct { | |
407 | u16 association_id:14, reserved:2; | |
408 | } __attribute__ ((packed)); | |
409 | u32 time_stamp[2]; | |
410 | u16 reason; | |
411 | u16 status; | |
412 | */ | |
413 | ||
ee34af37 | 414 | struct ieee80211_auth { |
286d9747 | 415 | struct ieee80211_hdr_3addr header; |
099c5bb1 JB |
416 | __le16 algorithm; |
417 | __le16 transaction; | |
418 | __le16 status; | |
e5658d3e | 419 | /* challenge */ |
68e4e036 | 420 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
421 | } __attribute__ ((packed)); |
422 | ||
b79e20b6 ZY |
423 | struct ieee80211_channel_switch { |
424 | u8 id; | |
425 | u8 len; | |
426 | u8 mode; | |
427 | u8 channel; | |
428 | u8 count; | |
429 | } __attribute__ ((packed)); | |
430 | ||
431 | struct ieee80211_action { | |
432 | struct ieee80211_hdr_3addr header; | |
433 | u8 category; | |
434 | u8 action; | |
435 | union { | |
436 | struct ieee80211_action_exchange { | |
437 | u8 token; | |
438 | struct ieee80211_info_element info_element[0]; | |
439 | } exchange; | |
440 | struct ieee80211_channel_switch channel_switch; | |
441 | ||
442 | } format; | |
443 | } __attribute__ ((packed)); | |
444 | ||
ee34af37 JK |
445 | struct ieee80211_disassoc { |
446 | struct ieee80211_hdr_3addr header; | |
e5658d3e | 447 | __le16 reason; |
ee34af37 JK |
448 | } __attribute__ ((packed)); |
449 | ||
e5658d3e | 450 | /* Alias deauth for disassoc */ |
604116a3 | 451 | #define ieee80211_deauth ieee80211_disassoc |
e5658d3e | 452 | |
ee34af37 JK |
453 | struct ieee80211_probe_request { |
454 | struct ieee80211_hdr_3addr header; | |
e5658d3e | 455 | /* SSID, supported rates */ |
ee34af37 JK |
456 | struct ieee80211_info_element info_element[0]; |
457 | } __attribute__ ((packed)); | |
458 | ||
b453872c | 459 | struct ieee80211_probe_response { |
286d9747 | 460 | struct ieee80211_hdr_3addr header; |
d9e94d56 | 461 | __le32 time_stamp[2]; |
099c5bb1 JB |
462 | __le16 beacon_interval; |
463 | __le16 capability; | |
e5658d3e JK |
464 | /* SSID, supported rates, FH params, DS params, |
465 | * CF params, IBSS params, TIM (if beacon), RSN */ | |
68e4e036 | 466 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
467 | } __attribute__ ((packed)); |
468 | ||
ee34af37 JK |
469 | /* Alias beacon for probe_response */ |
470 | #define ieee80211_beacon ieee80211_probe_response | |
471 | ||
472 | struct ieee80211_assoc_request { | |
473 | struct ieee80211_hdr_3addr header; | |
cdcfc210 JK |
474 | __le16 capability; |
475 | __le16 listen_interval; | |
e5658d3e | 476 | /* SSID, supported rates, RSN */ |
ee34af37 JK |
477 | struct ieee80211_info_element info_element[0]; |
478 | } __attribute__ ((packed)); | |
479 | ||
480 | struct ieee80211_reassoc_request { | |
481 | struct ieee80211_hdr_3addr header; | |
099c5bb1 JB |
482 | __le16 capability; |
483 | __le16 listen_interval; | |
b453872c | 484 | u8 current_ap[ETH_ALEN]; |
68e4e036 | 485 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
486 | } __attribute__ ((packed)); |
487 | ||
ee34af37 | 488 | struct ieee80211_assoc_response { |
b453872c | 489 | struct ieee80211_hdr_3addr header; |
099c5bb1 JB |
490 | __le16 capability; |
491 | __le16 status; | |
492 | __le16 aid; | |
e5658d3e JK |
493 | /* supported rates */ |
494 | struct ieee80211_info_element info_element[0]; | |
b453872c JG |
495 | } __attribute__ ((packed)); |
496 | ||
b453872c JG |
497 | struct ieee80211_txb { |
498 | u8 nr_frags; | |
499 | u8 encrypted; | |
ee34af37 JK |
500 | u8 rts_included; |
501 | u8 reserved; | |
d9e94d56 AV |
502 | u16 frag_size; |
503 | u16 payload_size; | |
b453872c JG |
504 | struct sk_buff *fragments[0]; |
505 | }; | |
506 | ||
099c5bb1 | 507 | /* SWEEP TABLE ENTRIES NUMBER */ |
b453872c JG |
508 | #define MAX_SWEEP_TAB_ENTRIES 42 |
509 | #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 | |
510 | /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs | |
511 | * only use 8, and then use extended rates for the remaining supported | |
512 | * rates. Other APs, however, stick all of their supported rates on the | |
513 | * main rates information element... */ | |
514 | #define MAX_RATES_LENGTH ((u8)12) | |
515 | #define MAX_RATES_EX_LENGTH ((u8)16) | |
516 | #define MAX_NETWORK_COUNT 128 | |
517 | ||
518 | #define CRC_LENGTH 4U | |
519 | ||
520 | #define MAX_WPA_IE_LEN 64 | |
521 | ||
9e8571af JK |
522 | #define NETWORK_HAS_OFDM (1<<1) |
523 | #define NETWORK_HAS_CCK (1<<2) | |
524 | ||
525 | /* QoS structure */ | |
526 | #define NETWORK_HAS_QOS_PARAMETERS (1<<3) | |
527 | #define NETWORK_HAS_QOS_INFORMATION (1<<4) | |
b79e20b6 ZY |
528 | #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \ |
529 | NETWORK_HAS_QOS_INFORMATION) | |
530 | ||
531 | /* 802.11h */ | |
532 | #define NETWORK_HAS_POWER_CONSTRAINT (1<<5) | |
533 | #define NETWORK_HAS_CSA (1<<6) | |
534 | #define NETWORK_HAS_QUIET (1<<7) | |
535 | #define NETWORK_HAS_IBSS_DFS (1<<8) | |
536 | #define NETWORK_HAS_TPC_REPORT (1<<9) | |
9e8571af | 537 | |
d8e2be90 DD |
538 | #define NETWORK_HAS_ERP_VALUE (1<<10) |
539 | ||
9e8571af JK |
540 | #define QOS_QUEUE_NUM 4 |
541 | #define QOS_OUI_LEN 3 | |
542 | #define QOS_OUI_TYPE 2 | |
543 | #define QOS_ELEMENT_ID 221 | |
544 | #define QOS_OUI_INFO_SUB_TYPE 0 | |
545 | #define QOS_OUI_PARAM_SUB_TYPE 1 | |
546 | #define QOS_VERSION_1 1 | |
547 | #define QOS_AIFSN_MIN_VALUE 2 | |
548 | ||
549 | struct ieee80211_qos_information_element { | |
550 | u8 elementID; | |
551 | u8 length; | |
552 | u8 qui[QOS_OUI_LEN]; | |
553 | u8 qui_type; | |
554 | u8 qui_subtype; | |
555 | u8 version; | |
556 | u8 ac_info; | |
557 | } __attribute__ ((packed)); | |
558 | ||
559 | struct ieee80211_qos_ac_parameter { | |
560 | u8 aci_aifsn; | |
561 | u8 ecw_min_max; | |
cdcfc210 | 562 | __le16 tx_op_limit; |
9e8571af JK |
563 | } __attribute__ ((packed)); |
564 | ||
565 | struct ieee80211_qos_parameter_info { | |
566 | struct ieee80211_qos_information_element info_element; | |
567 | u8 reserved; | |
568 | struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM]; | |
569 | } __attribute__ ((packed)); | |
570 | ||
571 | struct ieee80211_qos_parameters { | |
cdcfc210 JK |
572 | __le16 cw_min[QOS_QUEUE_NUM]; |
573 | __le16 cw_max[QOS_QUEUE_NUM]; | |
9e8571af JK |
574 | u8 aifs[QOS_QUEUE_NUM]; |
575 | u8 flag[QOS_QUEUE_NUM]; | |
cdcfc210 | 576 | __le16 tx_op_limit[QOS_QUEUE_NUM]; |
9e8571af JK |
577 | } __attribute__ ((packed)); |
578 | ||
579 | struct ieee80211_qos_data { | |
580 | struct ieee80211_qos_parameters parameters; | |
581 | int active; | |
582 | int supported; | |
583 | u8 param_count; | |
584 | u8 old_param_count; | |
585 | }; | |
586 | ||
587 | struct ieee80211_tim_parameters { | |
588 | u8 tim_count; | |
589 | u8 tim_period; | |
590 | } __attribute__ ((packed)); | |
591 | ||
592 | /*******************************************************/ | |
b453872c | 593 | |
b79e20b6 ZY |
594 | enum { /* ieee80211_basic_report.map */ |
595 | IEEE80211_BASIC_MAP_BSS = (1 << 0), | |
596 | IEEE80211_BASIC_MAP_OFDM = (1 << 1), | |
597 | IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2), | |
598 | IEEE80211_BASIC_MAP_RADAR = (1 << 3), | |
599 | IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4), | |
600 | /* Bits 5-7 are reserved */ | |
601 | ||
602 | }; | |
603 | struct ieee80211_basic_report { | |
604 | u8 channel; | |
605 | __le64 start_time; | |
606 | __le16 duration; | |
607 | u8 map; | |
608 | } __attribute__ ((packed)); | |
609 | ||
610 | enum { /* ieee80211_measurement_request.mode */ | |
611 | /* Bit 0 is reserved */ | |
612 | IEEE80211_MEASUREMENT_ENABLE = (1 << 1), | |
613 | IEEE80211_MEASUREMENT_REQUEST = (1 << 2), | |
614 | IEEE80211_MEASUREMENT_REPORT = (1 << 3), | |
615 | /* Bits 4-7 are reserved */ | |
616 | }; | |
617 | ||
618 | enum { | |
619 | IEEE80211_REPORT_BASIC = 0, /* required */ | |
620 | IEEE80211_REPORT_CCA = 1, /* optional */ | |
621 | IEEE80211_REPORT_RPI = 2, /* optional */ | |
622 | /* 3-255 reserved */ | |
623 | }; | |
624 | ||
625 | struct ieee80211_measurement_params { | |
626 | u8 channel; | |
627 | __le64 start_time; | |
628 | __le16 duration; | |
629 | } __attribute__ ((packed)); | |
630 | ||
631 | struct ieee80211_measurement_request { | |
632 | struct ieee80211_info_element ie; | |
633 | u8 token; | |
634 | u8 mode; | |
635 | u8 type; | |
636 | struct ieee80211_measurement_params params[0]; | |
637 | } __attribute__ ((packed)); | |
638 | ||
639 | struct ieee80211_measurement_report { | |
640 | struct ieee80211_info_element ie; | |
641 | u8 token; | |
642 | u8 mode; | |
643 | u8 type; | |
644 | union { | |
645 | struct ieee80211_basic_report basic[0]; | |
646 | } u; | |
647 | } __attribute__ ((packed)); | |
648 | ||
649 | struct ieee80211_tpc_report { | |
650 | u8 transmit_power; | |
651 | u8 link_margin; | |
652 | } __attribute__ ((packed)); | |
653 | ||
654 | struct ieee80211_channel_map { | |
655 | u8 channel; | |
656 | u8 map; | |
657 | } __attribute__ ((packed)); | |
658 | ||
659 | struct ieee80211_ibss_dfs { | |
660 | struct ieee80211_info_element ie; | |
661 | u8 owner[ETH_ALEN]; | |
662 | u8 recovery_interval; | |
663 | struct ieee80211_channel_map channel_map[0]; | |
664 | }; | |
665 | ||
666 | struct ieee80211_csa { | |
667 | u8 mode; | |
668 | u8 channel; | |
669 | u8 count; | |
670 | } __attribute__ ((packed)); | |
671 | ||
672 | struct ieee80211_quiet { | |
673 | u8 count; | |
674 | u8 period; | |
675 | u8 duration; | |
676 | u8 offset; | |
677 | } __attribute__ ((packed)); | |
678 | ||
b453872c JG |
679 | struct ieee80211_network { |
680 | /* These entries are used to identify a unique network */ | |
681 | u8 bssid[ETH_ALEN]; | |
682 | u8 channel; | |
683 | /* Ensure null-terminated for any debug msgs */ | |
684 | u8 ssid[IW_ESSID_MAX_SIZE + 1]; | |
685 | u8 ssid_len; | |
686 | ||
9e8571af JK |
687 | struct ieee80211_qos_data qos_data; |
688 | ||
b453872c JG |
689 | /* These are network statistics */ |
690 | struct ieee80211_rx_stats stats; | |
691 | u16 capability; | |
692 | u8 rates[MAX_RATES_LENGTH]; | |
693 | u8 rates_len; | |
694 | u8 rates_ex[MAX_RATES_EX_LENGTH]; | |
695 | u8 rates_ex_len; | |
696 | unsigned long last_scanned; | |
697 | u8 mode; | |
b79e20b6 | 698 | u32 flags; |
b453872c JG |
699 | u32 last_associate; |
700 | u32 time_stamp[2]; | |
701 | u16 beacon_interval; | |
702 | u16 listen_interval; | |
703 | u16 atim_window; | |
42c94e43 | 704 | u8 erp_value; |
b453872c JG |
705 | u8 wpa_ie[MAX_WPA_IE_LEN]; |
706 | size_t wpa_ie_len; | |
707 | u8 rsn_ie[MAX_WPA_IE_LEN]; | |
708 | size_t rsn_ie_len; | |
9e8571af | 709 | struct ieee80211_tim_parameters tim; |
b79e20b6 ZY |
710 | |
711 | /* 802.11h info */ | |
712 | ||
713 | /* Power Constraint - mandatory if spctrm mgmt required */ | |
714 | u8 power_constraint; | |
715 | ||
716 | /* TPC Report - mandatory if spctrm mgmt required */ | |
717 | struct ieee80211_tpc_report tpc_report; | |
718 | ||
719 | /* IBSS DFS - mandatory if spctrm mgmt required and IBSS | |
720 | * NOTE: This is variable length and so must be allocated dynamically */ | |
721 | struct ieee80211_ibss_dfs *ibss_dfs; | |
722 | ||
723 | /* Channel Switch Announcement - optional if spctrm mgmt required */ | |
724 | struct ieee80211_csa csa; | |
725 | ||
726 | /* Quiet - optional if spctrm mgmt required */ | |
727 | struct ieee80211_quiet quiet; | |
728 | ||
b453872c JG |
729 | struct list_head list; |
730 | }; | |
731 | ||
732 | enum ieee80211_state { | |
733 | IEEE80211_UNINITIALIZED = 0, | |
734 | IEEE80211_INITIALIZED, | |
735 | IEEE80211_ASSOCIATING, | |
736 | IEEE80211_ASSOCIATED, | |
737 | IEEE80211_AUTHENTICATING, | |
738 | IEEE80211_AUTHENTICATED, | |
739 | IEEE80211_SHUTDOWN | |
740 | }; | |
741 | ||
742 | #define DEFAULT_MAX_SCAN_AGE (15 * HZ) | |
743 | #define DEFAULT_FTS 2346 | |
b453872c | 744 | |
b453872c JG |
745 | #define CFG_IEEE80211_RESERVE_FCS (1<<0) |
746 | #define CFG_IEEE80211_COMPUTE_FCS (1<<1) | |
3cdd00c5 | 747 | #define CFG_IEEE80211_RTS (1<<2) |
b453872c | 748 | |
02cda6ae JK |
749 | #define IEEE80211_24GHZ_MIN_CHANNEL 1 |
750 | #define IEEE80211_24GHZ_MAX_CHANNEL 14 | |
f21709d7 JD |
751 | #define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \ |
752 | IEEE80211_24GHZ_MIN_CHANNEL + 1) | |
02cda6ae | 753 | |
4a99ac3a | 754 | #define IEEE80211_52GHZ_MIN_CHANNEL 34 |
02cda6ae | 755 | #define IEEE80211_52GHZ_MAX_CHANNEL 165 |
f21709d7 JD |
756 | #define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \ |
757 | IEEE80211_52GHZ_MIN_CHANNEL + 1) | |
02cda6ae JK |
758 | |
759 | enum { | |
760 | IEEE80211_CH_PASSIVE_ONLY = (1 << 0), | |
74f49033 | 761 | IEEE80211_CH_80211H_RULES = (1 << 1), |
02cda6ae JK |
762 | IEEE80211_CH_B_ONLY = (1 << 2), |
763 | IEEE80211_CH_NO_IBSS = (1 << 3), | |
764 | IEEE80211_CH_UNIFORM_SPREADING = (1 << 4), | |
765 | IEEE80211_CH_RADAR_DETECT = (1 << 5), | |
766 | IEEE80211_CH_INVALID = (1 << 6), | |
767 | }; | |
768 | ||
769 | struct ieee80211_channel { | |
74f49033 | 770 | u32 freq; /* in MHz */ |
02cda6ae JK |
771 | u8 channel; |
772 | u8 flags; | |
74f49033 | 773 | u8 max_power; /* in dBm */ |
02cda6ae JK |
774 | }; |
775 | ||
776 | struct ieee80211_geo { | |
777 | u8 name[4]; | |
778 | u8 bg_channels; | |
779 | u8 a_channels; | |
780 | struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS]; | |
781 | struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS]; | |
782 | }; | |
783 | ||
b453872c JG |
784 | struct ieee80211_device { |
785 | struct net_device *dev; | |
f1bf6638 | 786 | struct ieee80211_security sec; |
b453872c JG |
787 | |
788 | /* Bookkeeping structures */ | |
b453872c JG |
789 | struct ieee80211_stats ieee_stats; |
790 | ||
02cda6ae JK |
791 | struct ieee80211_geo geo; |
792 | ||
b453872c JG |
793 | /* Probe / Beacon management */ |
794 | struct list_head network_free_list; | |
795 | struct list_head network_list; | |
796 | struct ieee80211_network *networks; | |
797 | int scans; | |
798 | int scan_age; | |
799 | ||
74079fdc JK |
800 | int iw_mode; /* operating mode (IW_MODE_*) */ |
801 | struct iw_spy_data spy_data; /* iwspy support */ | |
b453872c JG |
802 | |
803 | spinlock_t lock; | |
804 | ||
74079fdc JK |
805 | int tx_headroom; /* Set to size of any additional room needed at front |
806 | * of allocated Tx SKBs */ | |
b453872c JG |
807 | u32 config; |
808 | ||
809 | /* WEP and other encryption related settings at the device level */ | |
74079fdc | 810 | int open_wep; /* Set to 1 to allow unencrypted frames */ |
b453872c | 811 | |
74079fdc | 812 | int reset_on_keychange; /* Set to 1 if the HW needs to be reset on |
b453872c JG |
813 | * WEP key changes */ |
814 | ||
815 | /* If the host performs {en,de}cryption, then set to 1 */ | |
816 | int host_encrypt; | |
1264fc04 | 817 | int host_encrypt_msdu; |
b453872c | 818 | int host_decrypt; |
ccd0fda3 JK |
819 | /* host performs multicast decryption */ |
820 | int host_mc_decrypt; | |
821 | ||
c9308b06 DD |
822 | /* host should strip IV and ICV from protected frames */ |
823 | /* meaningful only when hardware decryption is being used */ | |
824 | int host_strip_iv_icv; | |
825 | ||
1264fc04 | 826 | int host_open_frag; |
31b59eae | 827 | int host_build_iv; |
74079fdc | 828 | int ieee802_1x; /* is IEEE 802.1X used */ |
b453872c JG |
829 | |
830 | /* WPA data */ | |
831 | int wpa_enabled; | |
832 | int drop_unencrypted; | |
b453872c JG |
833 | int privacy_invoked; |
834 | size_t wpa_ie_len; | |
835 | u8 *wpa_ie; | |
836 | ||
274bfb8d | 837 | struct lib80211_crypt_info crypt_info; |
b453872c | 838 | |
74079fdc JK |
839 | int bcrx_sta_key; /* use individual keys to override default keys even |
840 | * with RX of broad/multicast frames */ | |
b453872c JG |
841 | |
842 | /* Fragmentation structures */ | |
843 | struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN]; | |
844 | unsigned int frag_next_idx; | |
74079fdc | 845 | u16 fts; /* Fragmentation Threshold */ |
3cdd00c5 | 846 | u16 rts; /* RTS threshold */ |
b453872c JG |
847 | |
848 | /* Association info */ | |
849 | u8 bssid[ETH_ALEN]; | |
850 | ||
851 | enum ieee80211_state state; | |
852 | ||
74079fdc JK |
853 | int mode; /* A, B, G */ |
854 | int modulation; /* CCK, OFDM */ | |
855 | int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ | |
3bc5ed68 | 856 | int abg_true; /* ABG flag */ |
b453872c | 857 | |
b1b508e1 JK |
858 | int perfect_rssi; |
859 | int worst_rssi; | |
860 | ||
837925df LF |
861 | u16 prev_seq_ctl; /* used to drop duplicate frames */ |
862 | ||
b453872c | 863 | /* Callback functions */ |
74079fdc JK |
864 | void (*set_security) (struct net_device * dev, |
865 | struct ieee80211_security * sec); | |
866 | int (*hard_start_xmit) (struct ieee80211_txb * txb, | |
9e8571af | 867 | struct net_device * dev, int pri); |
74079fdc | 868 | int (*reset_port) (struct net_device * dev); |
3f552bbf JK |
869 | int (*is_queue_full) (struct net_device * dev, int pri); |
870 | ||
9e8571af JK |
871 | int (*handle_management) (struct net_device * dev, |
872 | struct ieee80211_network * network, u16 type); | |
73858062 | 873 | int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb); |
9e8571af | 874 | |
3f552bbf JK |
875 | /* Typical STA methods */ |
876 | int (*handle_auth) (struct net_device * dev, | |
877 | struct ieee80211_auth * auth); | |
31b59eae | 878 | int (*handle_deauth) (struct net_device * dev, |
b79e20b6 ZY |
879 | struct ieee80211_deauth * auth); |
880 | int (*handle_action) (struct net_device * dev, | |
881 | struct ieee80211_action * action, | |
882 | struct ieee80211_rx_stats * stats); | |
3f552bbf JK |
883 | int (*handle_disassoc) (struct net_device * dev, |
884 | struct ieee80211_disassoc * assoc); | |
885 | int (*handle_beacon) (struct net_device * dev, | |
886 | struct ieee80211_beacon * beacon, | |
887 | struct ieee80211_network * network); | |
888 | int (*handle_probe_response) (struct net_device * dev, | |
889 | struct ieee80211_probe_response * resp, | |
890 | struct ieee80211_network * network); | |
42c94e43 JK |
891 | int (*handle_probe_request) (struct net_device * dev, |
892 | struct ieee80211_probe_request * req, | |
893 | struct ieee80211_rx_stats * stats); | |
3f552bbf JK |
894 | int (*handle_assoc_response) (struct net_device * dev, |
895 | struct ieee80211_assoc_response * resp, | |
896 | struct ieee80211_network * network); | |
897 | ||
898 | /* Typical AP methods */ | |
899 | int (*handle_assoc_request) (struct net_device * dev); | |
900 | int (*handle_reassoc_request) (struct net_device * dev, | |
901 | struct ieee80211_reassoc_request * req); | |
b453872c JG |
902 | |
903 | /* This must be the last item so that it points to the data | |
904 | * allocated beyond this structure by alloc_ieee80211 */ | |
905 | u8 priv[0]; | |
906 | }; | |
907 | ||
908 | #define IEEE_A (1<<0) | |
909 | #define IEEE_B (1<<1) | |
910 | #define IEEE_G (1<<2) | |
911 | #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) | |
912 | ||
9ba7e0d1 | 913 | static inline void *ieee80211_priv(struct net_device *dev) |
b453872c JG |
914 | { |
915 | return ((struct ieee80211_device *)netdev_priv(dev))->priv; | |
916 | } | |
917 | ||
9ba7e0d1 | 918 | static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, |
74079fdc | 919 | int mode) |
b453872c JG |
920 | { |
921 | /* | |
922 | * It is possible for both access points and our device to support | |
923 | * combinations of modes, so as long as there is one valid combination | |
924 | * of ap/device supported modes, then return success | |
925 | * | |
926 | */ | |
927 | if ((mode & IEEE_A) && | |
928 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
929 | (ieee->freq_band & IEEE80211_52GHZ_BAND)) | |
930 | return 1; | |
931 | ||
932 | if ((mode & IEEE_G) && | |
933 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
934 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
935 | return 1; | |
936 | ||
937 | if ((mode & IEEE_B) && | |
938 | (ieee->modulation & IEEE80211_CCK_MODULATION) && | |
939 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
940 | return 1; | |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
9ba7e0d1 | 945 | static inline int ieee80211_get_hdrlen(u16 fc) |
b453872c | 946 | { |
286d9747 | 947 | int hdrlen = IEEE80211_3ADDR_LEN; |
9e8571af | 948 | u16 stype = WLAN_FC_GET_STYPE(fc); |
b453872c JG |
949 | |
950 | switch (WLAN_FC_GET_TYPE(fc)) { | |
951 | case IEEE80211_FTYPE_DATA: | |
952 | if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) | |
286d9747 | 953 | hdrlen = IEEE80211_4ADDR_LEN; |
9e8571af JK |
954 | if (stype & IEEE80211_STYPE_QOS_DATA) |
955 | hdrlen += 2; | |
b453872c JG |
956 | break; |
957 | case IEEE80211_FTYPE_CTL: | |
958 | switch (WLAN_FC_GET_STYPE(fc)) { | |
959 | case IEEE80211_STYPE_CTS: | |
960 | case IEEE80211_STYPE_ACK: | |
286d9747 | 961 | hdrlen = IEEE80211_1ADDR_LEN; |
b453872c JG |
962 | break; |
963 | default: | |
286d9747 | 964 | hdrlen = IEEE80211_2ADDR_LEN; |
b453872c JG |
965 | break; |
966 | } | |
967 | break; | |
968 | } | |
969 | ||
970 | return hdrlen; | |
971 | } | |
972 | ||
9ba7e0d1 | 973 | static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr) |
ee34af37 | 974 | { |
72118015 | 975 | switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control))) { |
ee34af37 JK |
976 | case IEEE80211_1ADDR_LEN: |
977 | return ((struct ieee80211_hdr_1addr *)hdr)->payload; | |
978 | case IEEE80211_2ADDR_LEN: | |
979 | return ((struct ieee80211_hdr_2addr *)hdr)->payload; | |
980 | case IEEE80211_3ADDR_LEN: | |
981 | return ((struct ieee80211_hdr_3addr *)hdr)->payload; | |
982 | case IEEE80211_4ADDR_LEN: | |
983 | return ((struct ieee80211_hdr_4addr *)hdr)->payload; | |
984 | } | |
cea00da3 | 985 | return NULL; |
ee34af37 JK |
986 | } |
987 | ||
7c254d3d ID |
988 | static inline int ieee80211_is_ofdm_rate(u8 rate) |
989 | { | |
990 | switch (rate & ~IEEE80211_BASIC_RATE_MASK) { | |
991 | case IEEE80211_OFDM_RATE_6MB: | |
992 | case IEEE80211_OFDM_RATE_9MB: | |
993 | case IEEE80211_OFDM_RATE_12MB: | |
994 | case IEEE80211_OFDM_RATE_18MB: | |
995 | case IEEE80211_OFDM_RATE_24MB: | |
996 | case IEEE80211_OFDM_RATE_36MB: | |
997 | case IEEE80211_OFDM_RATE_48MB: | |
998 | case IEEE80211_OFDM_RATE_54MB: | |
999 | return 1; | |
1000 | } | |
1001 | return 0; | |
1002 | } | |
1003 | ||
1004 | static inline int ieee80211_is_cck_rate(u8 rate) | |
1005 | { | |
1006 | switch (rate & ~IEEE80211_BASIC_RATE_MASK) { | |
1007 | case IEEE80211_CCK_RATE_1MB: | |
1008 | case IEEE80211_CCK_RATE_2MB: | |
1009 | case IEEE80211_CCK_RATE_5MB: | |
1010 | case IEEE80211_CCK_RATE_11MB: | |
1011 | return 1; | |
1012 | } | |
1013 | return 0; | |
1014 | } | |
1015 | ||
b453872c JG |
1016 | /* ieee80211.c */ |
1017 | extern void free_ieee80211(struct net_device *dev); | |
1018 | extern struct net_device *alloc_ieee80211(int sizeof_priv); | |
d5b3b9ae | 1019 | extern int ieee80211_change_mtu(struct net_device *dev, int new_mtu); |
b453872c | 1020 | |
c3d72b96 DW |
1021 | extern void ieee80211_networks_age(struct ieee80211_device *ieee, |
1022 | unsigned long age_secs); | |
1023 | ||
b453872c JG |
1024 | extern int ieee80211_set_encryption(struct ieee80211_device *ieee); |
1025 | ||
1026 | /* ieee80211_tx.c */ | |
74079fdc | 1027 | extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); |
b453872c JG |
1028 | extern void ieee80211_txb_free(struct ieee80211_txb *); |
1029 | ||
b453872c | 1030 | /* ieee80211_rx.c */ |
f2060f03 DD |
1031 | extern void ieee80211_rx_any(struct ieee80211_device *ieee, |
1032 | struct sk_buff *skb, struct ieee80211_rx_stats *stats); | |
b453872c JG |
1033 | extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, |
1034 | struct ieee80211_rx_stats *rx_stats); | |
c9fa7d5d | 1035 | /* make sure to set stats->len */ |
b453872c | 1036 | extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, |
ee34af37 | 1037 | struct ieee80211_hdr_4addr *header, |
b453872c | 1038 | struct ieee80211_rx_stats *stats); |
b79e20b6 | 1039 | extern void ieee80211_network_reset(struct ieee80211_network *network); |
b453872c | 1040 | |
02cda6ae JK |
1041 | /* ieee80211_geo.c */ |
1042 | extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device | |
1043 | *ieee); | |
1044 | extern int ieee80211_set_geo(struct ieee80211_device *ieee, | |
1045 | const struct ieee80211_geo *geo); | |
1046 | ||
1047 | extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee, | |
1048 | u8 channel); | |
1049 | extern int ieee80211_channel_to_index(struct ieee80211_device *ieee, | |
1050 | u8 channel); | |
1051 | extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq); | |
b79e20b6 ZY |
1052 | extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee, |
1053 | u8 channel); | |
1054 | extern const struct ieee80211_channel *ieee80211_get_channel(struct | |
1055 | ieee80211_device | |
1056 | *ieee, u8 channel); | |
f5cdf306 LF |
1057 | extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee, |
1058 | u8 channel); | |
02cda6ae | 1059 | |
099c5bb1 | 1060 | /* ieee80211_wx.c */ |
b453872c JG |
1061 | extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, |
1062 | struct iw_request_info *info, | |
1063 | union iwreq_data *wrqu, char *key); | |
1064 | extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee, | |
1065 | struct iw_request_info *info, | |
1066 | union iwreq_data *wrqu, char *key); | |
1067 | extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee, | |
1068 | struct iw_request_info *info, | |
1069 | union iwreq_data *wrqu, char *key); | |
e0d369d1 JK |
1070 | extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee, |
1071 | struct iw_request_info *info, | |
1072 | union iwreq_data *wrqu, char *extra); | |
1073 | extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee, | |
1074 | struct iw_request_info *info, | |
1075 | union iwreq_data *wrqu, char *extra); | |
b453872c | 1076 | |
9ba7e0d1 | 1077 | static inline void ieee80211_increment_scans(struct ieee80211_device *ieee) |
b453872c JG |
1078 | { |
1079 | ieee->scans++; | |
1080 | } | |
1081 | ||
9ba7e0d1 | 1082 | static inline int ieee80211_get_scans(struct ieee80211_device *ieee) |
b453872c JG |
1083 | { |
1084 | return ieee->scans; | |
1085 | } | |
1086 | ||
74079fdc | 1087 | #endif /* IEEE80211_H */ |