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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 | |
9 | * <jkmaline@cc.hut.fi> | |
10 | * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
11 | * | |
12 | * Adaption to a generic IEEE 802.11 stack by James Ketrenos | |
13 | * <jketreno@linux.intel.com> | |
14 | * Copyright (c) 2004, 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 | #ifndef IEEE80211_H | |
22 | #define IEEE80211_H | |
23 | #include <linux/if_ether.h> /* ETH_ALEN */ | |
24 | #include <linux/kernel.h> /* ARRAY_SIZE */ | |
b7721ff9 | 25 | #include <linux/wireless.h> |
b453872c | 26 | |
b453872c JG |
27 | #define IEEE80211_DATA_LEN 2304 |
28 | /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section | |
29 | 6.2.1.1.2. | |
30 | ||
31 | The figure in section 7.1.2 suggests a body size of up to 2312 | |
32 | bytes is allowed, which is a bit confusing, I suspect this | |
33 | represents the 2304 bytes of real data, plus a possible 8 bytes of | |
34 | WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ | |
35 | ||
36 | ||
37 | #define IEEE80211_HLEN 30 | |
38 | #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) | |
39 | ||
40 | struct ieee80211_hdr { | |
099c5bb1 JB |
41 | __le16 frame_ctl; |
42 | __le16 duration_id; | |
b453872c JG |
43 | u8 addr1[ETH_ALEN]; |
44 | u8 addr2[ETH_ALEN]; | |
45 | u8 addr3[ETH_ALEN]; | |
099c5bb1 | 46 | __le16 seq_ctl; |
b453872c JG |
47 | u8 addr4[ETH_ALEN]; |
48 | } __attribute__ ((packed)); | |
49 | ||
50 | struct ieee80211_hdr_3addr { | |
099c5bb1 JB |
51 | __le16 frame_ctl; |
52 | __le16 duration_id; | |
b453872c JG |
53 | u8 addr1[ETH_ALEN]; |
54 | u8 addr2[ETH_ALEN]; | |
55 | u8 addr3[ETH_ALEN]; | |
099c5bb1 | 56 | __le16 seq_ctl; |
b453872c JG |
57 | } __attribute__ ((packed)); |
58 | ||
286d9747 JB |
59 | #define IEEE80211_1ADDR_LEN 10 |
60 | #define IEEE80211_2ADDR_LEN 16 | |
b453872c JG |
61 | #define IEEE80211_3ADDR_LEN 24 |
62 | #define IEEE80211_4ADDR_LEN 30 | |
63 | #define IEEE80211_FCS_LEN 4 | |
64 | ||
65 | #define MIN_FRAG_THRESHOLD 256U | |
66 | #define MAX_FRAG_THRESHOLD 2346U | |
67 | ||
68 | /* Frame control field constants */ | |
f241be74 | 69 | #define IEEE80211_FCTL_VERS 0x0003 |
b453872c JG |
70 | #define IEEE80211_FCTL_FTYPE 0x000c |
71 | #define IEEE80211_FCTL_STYPE 0x00f0 | |
72 | #define IEEE80211_FCTL_TODS 0x0100 | |
73 | #define IEEE80211_FCTL_FROMDS 0x0200 | |
74 | #define IEEE80211_FCTL_MOREFRAGS 0x0400 | |
75 | #define IEEE80211_FCTL_RETRY 0x0800 | |
76 | #define IEEE80211_FCTL_PM 0x1000 | |
f13baae4 JB |
77 | #define IEEE80211_FCTL_MOREDATA 0x2000 |
78 | #define IEEE80211_FCTL_PROTECTED 0x4000 | |
b453872c JG |
79 | #define IEEE80211_FCTL_ORDER 0x8000 |
80 | ||
81 | #define IEEE80211_FTYPE_MGMT 0x0000 | |
82 | #define IEEE80211_FTYPE_CTL 0x0004 | |
83 | #define IEEE80211_FTYPE_DATA 0x0008 | |
84 | ||
85 | /* management */ | |
86 | #define IEEE80211_STYPE_ASSOC_REQ 0x0000 | |
87 | #define IEEE80211_STYPE_ASSOC_RESP 0x0010 | |
88 | #define IEEE80211_STYPE_REASSOC_REQ 0x0020 | |
89 | #define IEEE80211_STYPE_REASSOC_RESP 0x0030 | |
90 | #define IEEE80211_STYPE_PROBE_REQ 0x0040 | |
91 | #define IEEE80211_STYPE_PROBE_RESP 0x0050 | |
92 | #define IEEE80211_STYPE_BEACON 0x0080 | |
93 | #define IEEE80211_STYPE_ATIM 0x0090 | |
94 | #define IEEE80211_STYPE_DISASSOC 0x00A0 | |
95 | #define IEEE80211_STYPE_AUTH 0x00B0 | |
96 | #define IEEE80211_STYPE_DEAUTH 0x00C0 | |
f13baae4 | 97 | #define IEEE80211_STYPE_ACTION 0x00D0 |
b453872c JG |
98 | |
99 | /* control */ | |
100 | #define IEEE80211_STYPE_PSPOLL 0x00A0 | |
101 | #define IEEE80211_STYPE_RTS 0x00B0 | |
102 | #define IEEE80211_STYPE_CTS 0x00C0 | |
103 | #define IEEE80211_STYPE_ACK 0x00D0 | |
104 | #define IEEE80211_STYPE_CFEND 0x00E0 | |
105 | #define IEEE80211_STYPE_CFENDACK 0x00F0 | |
106 | ||
107 | /* data */ | |
108 | #define IEEE80211_STYPE_DATA 0x0000 | |
109 | #define IEEE80211_STYPE_DATA_CFACK 0x0010 | |
110 | #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 | |
111 | #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 | |
112 | #define IEEE80211_STYPE_NULLFUNC 0x0040 | |
113 | #define IEEE80211_STYPE_CFACK 0x0050 | |
114 | #define IEEE80211_STYPE_CFPOLL 0x0060 | |
115 | #define IEEE80211_STYPE_CFACKPOLL 0x0070 | |
116 | ||
117 | #define IEEE80211_SCTL_FRAG 0x000F | |
118 | #define IEEE80211_SCTL_SEQ 0xFFF0 | |
119 | ||
120 | ||
121 | /* debug macros */ | |
122 | ||
123 | #ifdef CONFIG_IEEE80211_DEBUG | |
124 | extern u32 ieee80211_debug_level; | |
125 | #define IEEE80211_DEBUG(level, fmt, args...) \ | |
126 | do { if (ieee80211_debug_level & (level)) \ | |
127 | printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ | |
128 | in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) | |
129 | #else | |
130 | #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) | |
131 | #endif /* CONFIG_IEEE80211_DEBUG */ | |
132 | ||
e88187ee JB |
133 | |
134 | /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */ | |
135 | ||
136 | #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" | |
137 | #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5] | |
138 | ||
139 | /* escape_essid() is intended to be used in debug (and possibly error) | |
140 | * messages. It should never be used for passing essid to user space. */ | |
141 | const char *escape_essid(const char *essid, u8 essid_len); | |
142 | ||
143 | ||
b453872c | 144 | /* |
e88187ee | 145 | * To use the debug system: |
b453872c JG |
146 | * |
147 | * If you are defining a new debug classification, simply add it to the #define | |
148 | * list here in the form of: | |
149 | * | |
150 | * #define IEEE80211_DL_xxxx VALUE | |
151 | * | |
152 | * shifting value to the left one bit from the previous entry. xxxx should be | |
153 | * the name of the classification (for example, WEP) | |
154 | * | |
155 | * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your | |
156 | * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want | |
157 | * to send output to that classification. | |
158 | * | |
159 | * To add your debug level to the list of levels seen when you perform | |
160 | * | |
161 | * % cat /proc/net/ipw/debug_level | |
162 | * | |
163 | * you simply need to add your entry to the ipw_debug_levels array. | |
164 | * | |
165 | * If you do not see debug_level in /proc/net/ipw then you do not have | |
166 | * CONFIG_IEEE80211_DEBUG defined in your kernel configuration | |
167 | * | |
168 | */ | |
169 | ||
170 | #define IEEE80211_DL_INFO (1<<0) | |
171 | #define IEEE80211_DL_WX (1<<1) | |
172 | #define IEEE80211_DL_SCAN (1<<2) | |
173 | #define IEEE80211_DL_STATE (1<<3) | |
174 | #define IEEE80211_DL_MGMT (1<<4) | |
175 | #define IEEE80211_DL_FRAG (1<<5) | |
b453872c JG |
176 | #define IEEE80211_DL_DROP (1<<7) |
177 | ||
178 | #define IEEE80211_DL_TX (1<<8) | |
179 | #define IEEE80211_DL_RX (1<<9) | |
180 | ||
181 | #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) | |
182 | #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) | |
183 | #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a) | |
184 | ||
185 | #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a) | |
186 | #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a) | |
187 | #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a) | |
188 | #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a) | |
189 | #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a) | |
b453872c JG |
190 | #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a) |
191 | #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a) | |
192 | #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a) | |
193 | #include <linux/netdevice.h> | |
194 | #include <linux/wireless.h> | |
195 | #include <linux/if_arp.h> /* ARPHRD_ETHER */ | |
196 | ||
197 | #ifndef WIRELESS_SPY | |
099c5bb1 | 198 | #define WIRELESS_SPY /* enable iwspy support */ |
b453872c | 199 | #endif |
099c5bb1 | 200 | #include <net/iw_handler.h> /* new driver API */ |
b453872c JG |
201 | |
202 | #ifndef ETH_P_PAE | |
203 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ | |
204 | #endif /* ETH_P_PAE */ | |
205 | ||
206 | #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ | |
207 | ||
208 | #ifndef ETH_P_80211_RAW | |
209 | #define ETH_P_80211_RAW (ETH_P_ECONET + 1) | |
210 | #endif | |
211 | ||
212 | /* IEEE 802.11 defines */ | |
213 | ||
214 | #define P80211_OUI_LEN 3 | |
215 | ||
216 | struct ieee80211_snap_hdr { | |
217 | ||
218 | u8 dsap; /* always 0xAA */ | |
219 | u8 ssap; /* always 0xAA */ | |
220 | u8 ctrl; /* always 0x03 */ | |
221 | u8 oui[P80211_OUI_LEN]; /* organizational universal id */ | |
222 | ||
223 | } __attribute__ ((packed)); | |
224 | ||
225 | #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) | |
226 | ||
f13baae4 | 227 | #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) |
b453872c JG |
228 | #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) |
229 | #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) | |
230 | ||
231 | #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) | |
232 | #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ) | |
233 | ||
234 | /* Authentication algorithms */ | |
235 | #define WLAN_AUTH_OPEN 0 | |
236 | #define WLAN_AUTH_SHARED_KEY 1 | |
237 | ||
238 | #define WLAN_AUTH_CHALLENGE_LEN 128 | |
239 | ||
2474385e | 240 | #define WLAN_CAPABILITY_ESS (1<<0) |
b453872c JG |
241 | #define WLAN_CAPABILITY_IBSS (1<<1) |
242 | #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) | |
243 | #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) | |
244 | #define WLAN_CAPABILITY_PRIVACY (1<<4) | |
245 | #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) | |
246 | #define WLAN_CAPABILITY_PBCC (1<<6) | |
247 | #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) | |
f13baae4 JB |
248 | #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) |
249 | #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) | |
250 | #define WLAN_CAPABILITY_OSSS_OFDM (1<<13) | |
b453872c JG |
251 | |
252 | /* Status codes */ | |
95d5185d JB |
253 | enum ieee80211_statuscode { |
254 | WLAN_STATUS_SUCCESS = 0, | |
255 | WLAN_STATUS_UNSPECIFIED_FAILURE = 1, | |
256 | WLAN_STATUS_CAPS_UNSUPPORTED = 10, | |
257 | WLAN_STATUS_REASSOC_NO_ASSOC = 11, | |
258 | WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, | |
259 | WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, | |
260 | WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, | |
261 | WLAN_STATUS_CHALLENGE_FAIL = 15, | |
262 | WLAN_STATUS_AUTH_TIMEOUT = 16, | |
263 | WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, | |
264 | WLAN_STATUS_ASSOC_DENIED_RATES = 18, | |
265 | /* 802.11b */ | |
266 | WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, | |
267 | WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, | |
268 | WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, | |
269 | /* 802.11h */ | |
270 | WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, | |
271 | WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, | |
272 | WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, | |
273 | /* 802.11g */ | |
274 | WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, | |
275 | WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, | |
276 | /* 802.11i */ | |
277 | WLAN_STATUS_INVALID_IE = 40, | |
278 | WLAN_STATUS_INVALID_GROUP_CIPHER = 41, | |
279 | WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, | |
280 | WLAN_STATUS_INVALID_AKMP = 43, | |
281 | WLAN_STATUS_UNSUPP_RSN_VERSION = 44, | |
282 | WLAN_STATUS_INVALID_RSN_IE_CAP = 45, | |
283 | WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, | |
284 | }; | |
b453872c JG |
285 | |
286 | /* Reason codes */ | |
95d5185d JB |
287 | enum ieee80211_reasoncode { |
288 | WLAN_REASON_UNSPECIFIED = 1, | |
289 | WLAN_REASON_PREV_AUTH_NOT_VALID = 2, | |
290 | WLAN_REASON_DEAUTH_LEAVING = 3, | |
291 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, | |
292 | WLAN_REASON_DISASSOC_AP_BUSY = 5, | |
293 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, | |
294 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, | |
295 | WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, | |
296 | WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, | |
297 | /* 802.11h */ | |
298 | WLAN_REASON_DISASSOC_BAD_POWER = 10, | |
299 | WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, | |
300 | /* 802.11i */ | |
301 | WLAN_REASON_INVALID_IE = 13, | |
302 | WLAN_REASON_MIC_FAILURE = 14, | |
303 | WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, | |
304 | WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, | |
305 | WLAN_REASON_IE_DIFFERENT = 17, | |
306 | WLAN_REASON_INVALID_GROUP_CIPHER = 18, | |
307 | WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, | |
308 | WLAN_REASON_INVALID_AKMP = 20, | |
309 | WLAN_REASON_UNSUPP_RSN_VERSION = 21, | |
310 | WLAN_REASON_INVALID_RSN_IE_CAP = 22, | |
311 | WLAN_REASON_IEEE8021X_FAILED = 23, | |
312 | WLAN_REASON_CIPHER_SUITE_REJECTED = 24, | |
313 | }; | |
b453872c JG |
314 | |
315 | ||
b453872c JG |
316 | #define IEEE80211_STATMASK_SIGNAL (1<<0) |
317 | #define IEEE80211_STATMASK_RSSI (1<<1) | |
318 | #define IEEE80211_STATMASK_NOISE (1<<2) | |
319 | #define IEEE80211_STATMASK_RATE (1<<3) | |
320 | #define IEEE80211_STATMASK_WEMASK 0x7 | |
321 | ||
322 | ||
323 | #define IEEE80211_CCK_MODULATION (1<<0) | |
324 | #define IEEE80211_OFDM_MODULATION (1<<1) | |
325 | ||
326 | #define IEEE80211_24GHZ_BAND (1<<0) | |
327 | #define IEEE80211_52GHZ_BAND (1<<1) | |
328 | ||
329 | #define IEEE80211_CCK_RATE_1MB 0x02 | |
330 | #define IEEE80211_CCK_RATE_2MB 0x04 | |
331 | #define IEEE80211_CCK_RATE_5MB 0x0B | |
332 | #define IEEE80211_CCK_RATE_11MB 0x16 | |
333 | #define IEEE80211_OFDM_RATE_6MB 0x0C | |
334 | #define IEEE80211_OFDM_RATE_9MB 0x12 | |
335 | #define IEEE80211_OFDM_RATE_12MB 0x18 | |
336 | #define IEEE80211_OFDM_RATE_18MB 0x24 | |
337 | #define IEEE80211_OFDM_RATE_24MB 0x30 | |
338 | #define IEEE80211_OFDM_RATE_36MB 0x48 | |
339 | #define IEEE80211_OFDM_RATE_48MB 0x60 | |
340 | #define IEEE80211_OFDM_RATE_54MB 0x6C | |
341 | #define IEEE80211_BASIC_RATE_MASK 0x80 | |
342 | ||
343 | #define IEEE80211_CCK_RATE_1MB_MASK (1<<0) | |
344 | #define IEEE80211_CCK_RATE_2MB_MASK (1<<1) | |
345 | #define IEEE80211_CCK_RATE_5MB_MASK (1<<2) | |
346 | #define IEEE80211_CCK_RATE_11MB_MASK (1<<3) | |
347 | #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) | |
348 | #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) | |
349 | #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) | |
350 | #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) | |
351 | #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) | |
352 | #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) | |
353 | #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) | |
354 | #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) | |
355 | ||
356 | #define IEEE80211_CCK_RATES_MASK 0x0000000F | |
357 | #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ | |
358 | IEEE80211_CCK_RATE_2MB_MASK) | |
359 | #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ | |
360 | IEEE80211_CCK_RATE_5MB_MASK | \ | |
361 | IEEE80211_CCK_RATE_11MB_MASK) | |
362 | ||
363 | #define IEEE80211_OFDM_RATES_MASK 0x00000FF0 | |
364 | #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ | |
365 | IEEE80211_OFDM_RATE_12MB_MASK | \ | |
366 | IEEE80211_OFDM_RATE_24MB_MASK) | |
367 | #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ | |
368 | IEEE80211_OFDM_RATE_9MB_MASK | \ | |
369 | IEEE80211_OFDM_RATE_18MB_MASK | \ | |
370 | IEEE80211_OFDM_RATE_36MB_MASK | \ | |
371 | IEEE80211_OFDM_RATE_48MB_MASK | \ | |
372 | IEEE80211_OFDM_RATE_54MB_MASK) | |
373 | #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ | |
374 | IEEE80211_CCK_DEFAULT_RATES_MASK) | |
375 | ||
376 | #define IEEE80211_NUM_OFDM_RATES 8 | |
377 | #define IEEE80211_NUM_CCK_RATES 4 | |
378 | #define IEEE80211_OFDM_SHIFT_MASK_A 4 | |
379 | ||
380 | ||
381 | ||
382 | ||
383 | /* NOTE: This data is for statistical purposes; not all hardware provides this | |
384 | * information for frames received. Not setting these will not cause | |
385 | * any adverse affects. */ | |
386 | struct ieee80211_rx_stats { | |
387 | u32 mac_time; | |
388 | s8 rssi; | |
389 | u8 signal; | |
390 | u8 noise; | |
391 | u16 rate; /* in 100 kbps */ | |
392 | u8 received_channel; | |
393 | u8 control; | |
394 | u8 mask; | |
395 | u8 freq; | |
396 | u16 len; | |
397 | }; | |
398 | ||
399 | /* IEEE 802.11 requires that STA supports concurrent reception of at least | |
400 | * three fragmented frames. This define can be increased to support more | |
401 | * concurrent frames, but it should be noted that each entry can consume about | |
402 | * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ | |
403 | #define IEEE80211_FRAG_CACHE_LEN 4 | |
404 | ||
405 | struct ieee80211_frag_entry { | |
406 | unsigned long first_frag_time; | |
407 | unsigned int seq; | |
408 | unsigned int last_frag; | |
409 | struct sk_buff *skb; | |
410 | u8 src_addr[ETH_ALEN]; | |
411 | u8 dst_addr[ETH_ALEN]; | |
412 | }; | |
413 | ||
414 | struct ieee80211_stats { | |
415 | unsigned int tx_unicast_frames; | |
416 | unsigned int tx_multicast_frames; | |
417 | unsigned int tx_fragments; | |
418 | unsigned int tx_unicast_octets; | |
419 | unsigned int tx_multicast_octets; | |
420 | unsigned int tx_deferred_transmissions; | |
421 | unsigned int tx_single_retry_frames; | |
422 | unsigned int tx_multiple_retry_frames; | |
423 | unsigned int tx_retry_limit_exceeded; | |
424 | unsigned int tx_discards; | |
425 | unsigned int rx_unicast_frames; | |
426 | unsigned int rx_multicast_frames; | |
427 | unsigned int rx_fragments; | |
428 | unsigned int rx_unicast_octets; | |
429 | unsigned int rx_multicast_octets; | |
430 | unsigned int rx_fcs_errors; | |
431 | unsigned int rx_discards_no_buffer; | |
432 | unsigned int tx_discards_wrong_sa; | |
433 | unsigned int rx_discards_undecryptable; | |
434 | unsigned int rx_message_in_msg_fragments; | |
435 | unsigned int rx_message_in_bad_msg_fragments; | |
436 | }; | |
437 | ||
438 | struct ieee80211_device; | |
439 | ||
440 | #include "ieee80211_crypt.h" | |
441 | ||
442 | #define SEC_KEY_1 (1<<0) | |
443 | #define SEC_KEY_2 (1<<1) | |
444 | #define SEC_KEY_3 (1<<2) | |
445 | #define SEC_KEY_4 (1<<3) | |
446 | #define SEC_ACTIVE_KEY (1<<4) | |
447 | #define SEC_AUTH_MODE (1<<5) | |
448 | #define SEC_UNICAST_GROUP (1<<6) | |
449 | #define SEC_LEVEL (1<<7) | |
450 | #define SEC_ENABLED (1<<8) | |
451 | ||
452 | #define SEC_LEVEL_0 0 /* None */ | |
453 | #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ | |
454 | #define SEC_LEVEL_2 2 /* Level 1 + TKIP */ | |
455 | #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ | |
456 | #define SEC_LEVEL_3 4 /* Level 2 + CCMP */ | |
457 | ||
458 | #define WEP_KEYS 4 | |
459 | #define WEP_KEY_LEN 13 | |
460 | ||
461 | struct ieee80211_security { | |
462 | u16 active_key:2, | |
463 | enabled:1, | |
464 | auth_mode:2, | |
465 | auth_algo:4, | |
466 | unicast_uses_group:1; | |
467 | u8 key_sizes[WEP_KEYS]; | |
468 | u8 keys[WEP_KEYS][WEP_KEY_LEN]; | |
469 | u8 level; | |
470 | u16 flags; | |
471 | } __attribute__ ((packed)); | |
472 | ||
473 | ||
474 | /* | |
475 | ||
476 | 802.11 data frame from AP | |
477 | ||
478 | ,-------------------------------------------------------------------. | |
479 | Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | | |
480 | |------|------|---------|---------|---------|------|---------|------| | |
481 | Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | | |
482 | | | tion | (BSSID) | | | ence | data | | | |
483 | `-------------------------------------------------------------------' | |
484 | ||
485 | Total: 28-2340 bytes | |
486 | ||
487 | */ | |
488 | ||
b453872c JG |
489 | #define BEACON_PROBE_SSID_ID_POSITION 12 |
490 | ||
491 | /* Management Frame Information Element Types */ | |
95d5185d JB |
492 | enum ieee80211_mfie { |
493 | MFIE_TYPE_SSID = 0, | |
494 | MFIE_TYPE_RATES = 1, | |
495 | MFIE_TYPE_FH_SET = 2, | |
496 | MFIE_TYPE_DS_SET = 3, | |
497 | MFIE_TYPE_CF_SET = 4, | |
498 | MFIE_TYPE_TIM = 5, | |
499 | MFIE_TYPE_IBSS_SET = 6, | |
500 | MFIE_TYPE_COUNTRY = 7, | |
501 | MFIE_TYPE_HOP_PARAMS = 8, | |
502 | MFIE_TYPE_HOP_TABLE = 9, | |
503 | MFIE_TYPE_REQUEST = 10, | |
504 | MFIE_TYPE_CHALLENGE = 16, | |
505 | MFIE_TYPE_POWER_CONSTRAINT = 32, | |
506 | MFIE_TYPE_POWER_CAPABILITY = 33, | |
507 | MFIE_TYPE_TPC_REQUEST = 34, | |
508 | MFIE_TYPE_TPC_REPORT = 35, | |
509 | MFIE_TYPE_SUPP_CHANNELS = 36, | |
510 | MFIE_TYPE_CSA = 37, | |
511 | MFIE_TYPE_MEASURE_REQUEST = 38, | |
512 | MFIE_TYPE_MEASURE_REPORT = 39, | |
513 | MFIE_TYPE_QUIET = 40, | |
514 | MFIE_TYPE_IBSS_DFS = 41, | |
515 | MFIE_TYPE_ERP_INFO = 42, | |
516 | MFIE_TYPE_RSN = 48, | |
517 | MFIE_TYPE_RATES_EX = 50, | |
518 | MFIE_TYPE_GENERIC = 221, | |
519 | }; | |
b453872c JG |
520 | |
521 | struct ieee80211_info_element_hdr { | |
522 | u8 id; | |
523 | u8 len; | |
524 | } __attribute__ ((packed)); | |
525 | ||
526 | struct ieee80211_info_element { | |
527 | u8 id; | |
528 | u8 len; | |
529 | u8 data[0]; | |
530 | } __attribute__ ((packed)); | |
531 | ||
532 | /* | |
533 | * These are the data types that can make up management packets | |
534 | * | |
535 | u16 auth_algorithm; | |
536 | u16 auth_sequence; | |
537 | u16 beacon_interval; | |
538 | u16 capability; | |
539 | u8 current_ap[ETH_ALEN]; | |
540 | u16 listen_interval; | |
541 | struct { | |
542 | u16 association_id:14, reserved:2; | |
543 | } __attribute__ ((packed)); | |
544 | u32 time_stamp[2]; | |
545 | u16 reason; | |
546 | u16 status; | |
547 | */ | |
548 | ||
549 | struct ieee80211_authentication { | |
286d9747 | 550 | struct ieee80211_hdr_3addr header; |
099c5bb1 JB |
551 | __le16 algorithm; |
552 | __le16 transaction; | |
553 | __le16 status; | |
b453872c JG |
554 | struct ieee80211_info_element info_element; |
555 | } __attribute__ ((packed)); | |
556 | ||
557 | ||
558 | struct ieee80211_probe_response { | |
286d9747 | 559 | struct ieee80211_hdr_3addr header; |
b453872c | 560 | u32 time_stamp[2]; |
099c5bb1 JB |
561 | __le16 beacon_interval; |
562 | __le16 capability; | |
b453872c JG |
563 | struct ieee80211_info_element info_element; |
564 | } __attribute__ ((packed)); | |
565 | ||
566 | struct ieee80211_assoc_request_frame { | |
099c5bb1 JB |
567 | __le16 capability; |
568 | __le16 listen_interval; | |
b453872c JG |
569 | u8 current_ap[ETH_ALEN]; |
570 | struct ieee80211_info_element info_element; | |
571 | } __attribute__ ((packed)); | |
572 | ||
573 | struct ieee80211_assoc_response_frame { | |
574 | struct ieee80211_hdr_3addr header; | |
099c5bb1 JB |
575 | __le16 capability; |
576 | __le16 status; | |
577 | __le16 aid; | |
b453872c JG |
578 | struct ieee80211_info_element info_element; /* supported rates */ |
579 | } __attribute__ ((packed)); | |
580 | ||
581 | ||
582 | struct ieee80211_txb { | |
583 | u8 nr_frags; | |
584 | u8 encrypted; | |
585 | u16 reserved; | |
586 | u16 frag_size; | |
587 | u16 payload_size; | |
588 | struct sk_buff *fragments[0]; | |
589 | }; | |
590 | ||
591 | ||
099c5bb1 | 592 | /* SWEEP TABLE ENTRIES NUMBER */ |
b453872c JG |
593 | #define MAX_SWEEP_TAB_ENTRIES 42 |
594 | #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 | |
595 | /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs | |
596 | * only use 8, and then use extended rates for the remaining supported | |
597 | * rates. Other APs, however, stick all of their supported rates on the | |
598 | * main rates information element... */ | |
599 | #define MAX_RATES_LENGTH ((u8)12) | |
600 | #define MAX_RATES_EX_LENGTH ((u8)16) | |
601 | #define MAX_NETWORK_COUNT 128 | |
602 | ||
603 | #define CRC_LENGTH 4U | |
604 | ||
605 | #define MAX_WPA_IE_LEN 64 | |
606 | ||
607 | #define NETWORK_EMPTY_ESSID (1<<0) | |
608 | #define NETWORK_HAS_OFDM (1<<1) | |
609 | #define NETWORK_HAS_CCK (1<<2) | |
610 | ||
611 | struct ieee80211_network { | |
612 | /* These entries are used to identify a unique network */ | |
613 | u8 bssid[ETH_ALEN]; | |
614 | u8 channel; | |
615 | /* Ensure null-terminated for any debug msgs */ | |
616 | u8 ssid[IW_ESSID_MAX_SIZE + 1]; | |
617 | u8 ssid_len; | |
618 | ||
619 | /* These are network statistics */ | |
620 | struct ieee80211_rx_stats stats; | |
621 | u16 capability; | |
622 | u8 rates[MAX_RATES_LENGTH]; | |
623 | u8 rates_len; | |
624 | u8 rates_ex[MAX_RATES_EX_LENGTH]; | |
625 | u8 rates_ex_len; | |
626 | unsigned long last_scanned; | |
627 | u8 mode; | |
628 | u8 flags; | |
629 | u32 last_associate; | |
630 | u32 time_stamp[2]; | |
631 | u16 beacon_interval; | |
632 | u16 listen_interval; | |
633 | u16 atim_window; | |
634 | u8 wpa_ie[MAX_WPA_IE_LEN]; | |
635 | size_t wpa_ie_len; | |
636 | u8 rsn_ie[MAX_WPA_IE_LEN]; | |
637 | size_t rsn_ie_len; | |
638 | struct list_head list; | |
639 | }; | |
640 | ||
641 | enum ieee80211_state { | |
642 | IEEE80211_UNINITIALIZED = 0, | |
643 | IEEE80211_INITIALIZED, | |
644 | IEEE80211_ASSOCIATING, | |
645 | IEEE80211_ASSOCIATED, | |
646 | IEEE80211_AUTHENTICATING, | |
647 | IEEE80211_AUTHENTICATED, | |
648 | IEEE80211_SHUTDOWN | |
649 | }; | |
650 | ||
651 | #define DEFAULT_MAX_SCAN_AGE (15 * HZ) | |
652 | #define DEFAULT_FTS 2346 | |
b453872c JG |
653 | |
654 | ||
b453872c JG |
655 | #define CFG_IEEE80211_RESERVE_FCS (1<<0) |
656 | #define CFG_IEEE80211_COMPUTE_FCS (1<<1) | |
657 | ||
658 | struct ieee80211_device { | |
659 | struct net_device *dev; | |
660 | ||
661 | /* Bookkeeping structures */ | |
662 | struct net_device_stats stats; | |
663 | struct ieee80211_stats ieee_stats; | |
664 | ||
665 | /* Probe / Beacon management */ | |
666 | struct list_head network_free_list; | |
667 | struct list_head network_list; | |
668 | struct ieee80211_network *networks; | |
669 | int scans; | |
670 | int scan_age; | |
671 | ||
672 | int iw_mode; /* operating mode (IW_MODE_*) */ | |
673 | ||
674 | spinlock_t lock; | |
675 | ||
676 | int tx_headroom; /* Set to size of any additional room needed at front | |
677 | * of allocated Tx SKBs */ | |
678 | u32 config; | |
679 | ||
680 | /* WEP and other encryption related settings at the device level */ | |
681 | int open_wep; /* Set to 1 to allow unencrypted frames */ | |
682 | ||
683 | int reset_on_keychange; /* Set to 1 if the HW needs to be reset on | |
684 | * WEP key changes */ | |
685 | ||
686 | /* If the host performs {en,de}cryption, then set to 1 */ | |
687 | int host_encrypt; | |
688 | int host_decrypt; | |
689 | int ieee802_1x; /* is IEEE 802.1X used */ | |
690 | ||
691 | /* WPA data */ | |
692 | int wpa_enabled; | |
693 | int drop_unencrypted; | |
694 | int tkip_countermeasures; | |
695 | int privacy_invoked; | |
696 | size_t wpa_ie_len; | |
697 | u8 *wpa_ie; | |
698 | ||
699 | struct list_head crypt_deinit_list; | |
700 | struct ieee80211_crypt_data *crypt[WEP_KEYS]; | |
701 | int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ | |
702 | struct timer_list crypt_deinit_timer; | |
703 | ||
704 | int bcrx_sta_key; /* use individual keys to override default keys even | |
705 | * with RX of broad/multicast frames */ | |
706 | ||
707 | /* Fragmentation structures */ | |
708 | struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN]; | |
709 | unsigned int frag_next_idx; | |
710 | u16 fts; /* Fragmentation Threshold */ | |
711 | ||
712 | /* Association info */ | |
713 | u8 bssid[ETH_ALEN]; | |
714 | ||
715 | enum ieee80211_state state; | |
716 | ||
717 | int mode; /* A, B, G */ | |
718 | int modulation; /* CCK, OFDM */ | |
719 | int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ | |
720 | int abg_ture; /* ABG flag */ | |
721 | ||
722 | /* Callback functions */ | |
723 | void (*set_security)(struct net_device *dev, | |
724 | struct ieee80211_security *sec); | |
725 | int (*hard_start_xmit)(struct ieee80211_txb *txb, | |
726 | struct net_device *dev); | |
727 | int (*reset_port)(struct net_device *dev); | |
728 | ||
729 | /* This must be the last item so that it points to the data | |
730 | * allocated beyond this structure by alloc_ieee80211 */ | |
731 | u8 priv[0]; | |
732 | }; | |
733 | ||
734 | #define IEEE_A (1<<0) | |
735 | #define IEEE_B (1<<1) | |
736 | #define IEEE_G (1<<2) | |
737 | #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) | |
738 | ||
739 | extern inline void *ieee80211_priv(struct net_device *dev) | |
740 | { | |
741 | return ((struct ieee80211_device *)netdev_priv(dev))->priv; | |
742 | } | |
743 | ||
744 | extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len) | |
745 | { | |
746 | /* Single white space is for Linksys APs */ | |
747 | if (essid_len == 1 && essid[0] == ' ') | |
748 | return 1; | |
749 | ||
750 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
751 | while (essid_len) { | |
752 | essid_len--; | |
753 | if (essid[essid_len] != '\0') | |
754 | return 0; | |
755 | } | |
756 | ||
757 | return 1; | |
758 | } | |
759 | ||
760 | extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode) | |
761 | { | |
762 | /* | |
763 | * It is possible for both access points and our device to support | |
764 | * combinations of modes, so as long as there is one valid combination | |
765 | * of ap/device supported modes, then return success | |
766 | * | |
767 | */ | |
768 | if ((mode & IEEE_A) && | |
769 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
770 | (ieee->freq_band & IEEE80211_52GHZ_BAND)) | |
771 | return 1; | |
772 | ||
773 | if ((mode & IEEE_G) && | |
774 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
775 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
776 | return 1; | |
777 | ||
778 | if ((mode & IEEE_B) && | |
779 | (ieee->modulation & IEEE80211_CCK_MODULATION) && | |
780 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
781 | return 1; | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | extern inline int ieee80211_get_hdrlen(u16 fc) | |
787 | { | |
286d9747 | 788 | int hdrlen = IEEE80211_3ADDR_LEN; |
b453872c JG |
789 | |
790 | switch (WLAN_FC_GET_TYPE(fc)) { | |
791 | case IEEE80211_FTYPE_DATA: | |
792 | if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) | |
286d9747 | 793 | hdrlen = IEEE80211_4ADDR_LEN; |
b453872c JG |
794 | break; |
795 | case IEEE80211_FTYPE_CTL: | |
796 | switch (WLAN_FC_GET_STYPE(fc)) { | |
797 | case IEEE80211_STYPE_CTS: | |
798 | case IEEE80211_STYPE_ACK: | |
286d9747 | 799 | hdrlen = IEEE80211_1ADDR_LEN; |
b453872c JG |
800 | break; |
801 | default: | |
286d9747 | 802 | hdrlen = IEEE80211_2ADDR_LEN; |
b453872c JG |
803 | break; |
804 | } | |
805 | break; | |
806 | } | |
807 | ||
808 | return hdrlen; | |
809 | } | |
810 | ||
811 | ||
812 | ||
813 | /* ieee80211.c */ | |
814 | extern void free_ieee80211(struct net_device *dev); | |
815 | extern struct net_device *alloc_ieee80211(int sizeof_priv); | |
816 | ||
817 | extern int ieee80211_set_encryption(struct ieee80211_device *ieee); | |
818 | ||
819 | /* ieee80211_tx.c */ | |
b453872c JG |
820 | extern int ieee80211_xmit(struct sk_buff *skb, |
821 | struct net_device *dev); | |
822 | extern void ieee80211_txb_free(struct ieee80211_txb *); | |
823 | ||
824 | ||
825 | /* ieee80211_rx.c */ | |
826 | extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, | |
827 | struct ieee80211_rx_stats *rx_stats); | |
828 | extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, | |
829 | struct ieee80211_hdr *header, | |
830 | struct ieee80211_rx_stats *stats); | |
831 | ||
099c5bb1 | 832 | /* ieee80211_wx.c */ |
b453872c JG |
833 | extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, |
834 | struct iw_request_info *info, | |
835 | union iwreq_data *wrqu, char *key); | |
836 | extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee, | |
837 | struct iw_request_info *info, | |
838 | union iwreq_data *wrqu, char *key); | |
839 | extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee, | |
840 | struct iw_request_info *info, | |
841 | union iwreq_data *wrqu, char *key); | |
842 | ||
843 | ||
844 | extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee) | |
845 | { | |
846 | ieee->scans++; | |
847 | } | |
848 | ||
849 | extern inline int ieee80211_get_scans(struct ieee80211_device *ieee) | |
850 | { | |
851 | return ieee->scans; | |
852 | } | |
853 | ||
b453872c | 854 | |
b453872c | 855 | #endif /* IEEE80211_H */ |