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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 | |
74079fdc JK |
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 | ||
b453872c JG |
36 | #define IEEE80211_HLEN 30 |
37 | #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) | |
38 | ||
39 | struct ieee80211_hdr { | |
099c5bb1 JB |
40 | __le16 frame_ctl; |
41 | __le16 duration_id; | |
b453872c JG |
42 | u8 addr1[ETH_ALEN]; |
43 | u8 addr2[ETH_ALEN]; | |
44 | u8 addr3[ETH_ALEN]; | |
099c5bb1 | 45 | __le16 seq_ctl; |
b453872c JG |
46 | u8 addr4[ETH_ALEN]; |
47 | } __attribute__ ((packed)); | |
48 | ||
49 | struct ieee80211_hdr_3addr { | |
099c5bb1 JB |
50 | __le16 frame_ctl; |
51 | __le16 duration_id; | |
b453872c JG |
52 | u8 addr1[ETH_ALEN]; |
53 | u8 addr2[ETH_ALEN]; | |
54 | u8 addr3[ETH_ALEN]; | |
099c5bb1 | 55 | __le16 seq_ctl; |
b453872c JG |
56 | } __attribute__ ((packed)); |
57 | ||
286d9747 JB |
58 | #define IEEE80211_1ADDR_LEN 10 |
59 | #define IEEE80211_2ADDR_LEN 16 | |
b453872c JG |
60 | #define IEEE80211_3ADDR_LEN 24 |
61 | #define IEEE80211_4ADDR_LEN 30 | |
62 | #define IEEE80211_FCS_LEN 4 | |
63 | ||
64 | #define MIN_FRAG_THRESHOLD 256U | |
65 | #define MAX_FRAG_THRESHOLD 2346U | |
66 | ||
67 | /* Frame control field constants */ | |
f241be74 | 68 | #define IEEE80211_FCTL_VERS 0x0003 |
b453872c JG |
69 | #define IEEE80211_FCTL_FTYPE 0x000c |
70 | #define IEEE80211_FCTL_STYPE 0x00f0 | |
71 | #define IEEE80211_FCTL_TODS 0x0100 | |
72 | #define IEEE80211_FCTL_FROMDS 0x0200 | |
73 | #define IEEE80211_FCTL_MOREFRAGS 0x0400 | |
74 | #define IEEE80211_FCTL_RETRY 0x0800 | |
75 | #define IEEE80211_FCTL_PM 0x1000 | |
f13baae4 JB |
76 | #define IEEE80211_FCTL_MOREDATA 0x2000 |
77 | #define IEEE80211_FCTL_PROTECTED 0x4000 | |
b453872c JG |
78 | #define IEEE80211_FCTL_ORDER 0x8000 |
79 | ||
80 | #define IEEE80211_FTYPE_MGMT 0x0000 | |
81 | #define IEEE80211_FTYPE_CTL 0x0004 | |
82 | #define IEEE80211_FTYPE_DATA 0x0008 | |
83 | ||
84 | /* management */ | |
85 | #define IEEE80211_STYPE_ASSOC_REQ 0x0000 | |
86 | #define IEEE80211_STYPE_ASSOC_RESP 0x0010 | |
87 | #define IEEE80211_STYPE_REASSOC_REQ 0x0020 | |
88 | #define IEEE80211_STYPE_REASSOC_RESP 0x0030 | |
89 | #define IEEE80211_STYPE_PROBE_REQ 0x0040 | |
90 | #define IEEE80211_STYPE_PROBE_RESP 0x0050 | |
91 | #define IEEE80211_STYPE_BEACON 0x0080 | |
92 | #define IEEE80211_STYPE_ATIM 0x0090 | |
93 | #define IEEE80211_STYPE_DISASSOC 0x00A0 | |
94 | #define IEEE80211_STYPE_AUTH 0x00B0 | |
95 | #define IEEE80211_STYPE_DEAUTH 0x00C0 | |
f13baae4 | 96 | #define IEEE80211_STYPE_ACTION 0x00D0 |
b453872c JG |
97 | |
98 | /* control */ | |
99 | #define IEEE80211_STYPE_PSPOLL 0x00A0 | |
100 | #define IEEE80211_STYPE_RTS 0x00B0 | |
101 | #define IEEE80211_STYPE_CTS 0x00C0 | |
102 | #define IEEE80211_STYPE_ACK 0x00D0 | |
103 | #define IEEE80211_STYPE_CFEND 0x00E0 | |
104 | #define IEEE80211_STYPE_CFENDACK 0x00F0 | |
105 | ||
106 | /* data */ | |
107 | #define IEEE80211_STYPE_DATA 0x0000 | |
108 | #define IEEE80211_STYPE_DATA_CFACK 0x0010 | |
109 | #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 | |
110 | #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 | |
111 | #define IEEE80211_STYPE_NULLFUNC 0x0040 | |
112 | #define IEEE80211_STYPE_CFACK 0x0050 | |
113 | #define IEEE80211_STYPE_CFPOLL 0x0060 | |
114 | #define IEEE80211_STYPE_CFACKPOLL 0x0070 | |
115 | ||
116 | #define IEEE80211_SCTL_FRAG 0x000F | |
117 | #define IEEE80211_SCTL_SEQ 0xFFF0 | |
118 | ||
b453872c JG |
119 | /* debug macros */ |
120 | ||
121 | #ifdef CONFIG_IEEE80211_DEBUG | |
122 | extern u32 ieee80211_debug_level; | |
123 | #define IEEE80211_DEBUG(level, fmt, args...) \ | |
124 | do { if (ieee80211_debug_level & (level)) \ | |
125 | printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ | |
126 | in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) | |
127 | #else | |
128 | #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) | |
74079fdc | 129 | #endif /* CONFIG_IEEE80211_DEBUG */ |
e88187ee JB |
130 | |
131 | /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */ | |
132 | ||
133 | #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" | |
134 | #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5] | |
135 | ||
136 | /* escape_essid() is intended to be used in debug (and possibly error) | |
137 | * messages. It should never be used for passing essid to user space. */ | |
138 | const char *escape_essid(const char *essid, u8 essid_len); | |
139 | ||
b453872c | 140 | /* |
e88187ee | 141 | * To use the debug system: |
b453872c JG |
142 | * |
143 | * If you are defining a new debug classification, simply add it to the #define | |
144 | * list here in the form of: | |
145 | * | |
146 | * #define IEEE80211_DL_xxxx VALUE | |
147 | * | |
148 | * shifting value to the left one bit from the previous entry. xxxx should be | |
149 | * the name of the classification (for example, WEP) | |
150 | * | |
151 | * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your | |
152 | * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want | |
153 | * to send output to that classification. | |
154 | * | |
155 | * To add your debug level to the list of levels seen when you perform | |
156 | * | |
91cb70c1 | 157 | * % cat /proc/net/ieee80211/debug_level |
b453872c | 158 | * |
91cb70c1 | 159 | * you simply need to add your entry to the ieee80211_debug_level array. |
b453872c | 160 | * |
91cb70c1 | 161 | * If you do not see debug_level in /proc/net/ieee80211 then you do not have |
b453872c JG |
162 | * CONFIG_IEEE80211_DEBUG defined in your kernel configuration |
163 | * | |
164 | */ | |
165 | ||
166 | #define IEEE80211_DL_INFO (1<<0) | |
167 | #define IEEE80211_DL_WX (1<<1) | |
168 | #define IEEE80211_DL_SCAN (1<<2) | |
169 | #define IEEE80211_DL_STATE (1<<3) | |
170 | #define IEEE80211_DL_MGMT (1<<4) | |
171 | #define IEEE80211_DL_FRAG (1<<5) | |
b453872c JG |
172 | #define IEEE80211_DL_DROP (1<<7) |
173 | ||
174 | #define IEEE80211_DL_TX (1<<8) | |
175 | #define IEEE80211_DL_RX (1<<9) | |
176 | ||
177 | #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) | |
178 | #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) | |
179 | #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a) | |
180 | ||
181 | #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a) | |
182 | #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a) | |
183 | #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a) | |
184 | #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a) | |
185 | #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a) | |
b453872c JG |
186 | #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a) |
187 | #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a) | |
188 | #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a) | |
189 | #include <linux/netdevice.h> | |
190 | #include <linux/wireless.h> | |
74079fdc | 191 | #include <linux/if_arp.h> /* ARPHRD_ETHER */ |
b453872c JG |
192 | |
193 | #ifndef WIRELESS_SPY | |
099c5bb1 | 194 | #define WIRELESS_SPY /* enable iwspy support */ |
b453872c | 195 | #endif |
099c5bb1 | 196 | #include <net/iw_handler.h> /* new driver API */ |
b453872c JG |
197 | |
198 | #ifndef ETH_P_PAE | |
74079fdc JK |
199 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ |
200 | #endif /* ETH_P_PAE */ | |
b453872c | 201 | |
74079fdc | 202 | #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ |
b453872c JG |
203 | |
204 | #ifndef ETH_P_80211_RAW | |
205 | #define ETH_P_80211_RAW (ETH_P_ECONET + 1) | |
206 | #endif | |
207 | ||
208 | /* IEEE 802.11 defines */ | |
209 | ||
210 | #define P80211_OUI_LEN 3 | |
211 | ||
212 | struct ieee80211_snap_hdr { | |
213 | ||
74079fdc JK |
214 | u8 dsap; /* always 0xAA */ |
215 | u8 ssap; /* always 0xAA */ | |
216 | u8 ctrl; /* always 0x03 */ | |
217 | u8 oui[P80211_OUI_LEN]; /* organizational universal id */ | |
b453872c JG |
218 | |
219 | } __attribute__ ((packed)); | |
220 | ||
221 | #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) | |
222 | ||
f13baae4 | 223 | #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) |
b453872c JG |
224 | #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) |
225 | #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) | |
226 | ||
227 | #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) | |
228 | #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ) | |
229 | ||
230 | /* Authentication algorithms */ | |
231 | #define WLAN_AUTH_OPEN 0 | |
232 | #define WLAN_AUTH_SHARED_KEY 1 | |
233 | ||
234 | #define WLAN_AUTH_CHALLENGE_LEN 128 | |
235 | ||
2474385e | 236 | #define WLAN_CAPABILITY_ESS (1<<0) |
b453872c JG |
237 | #define WLAN_CAPABILITY_IBSS (1<<1) |
238 | #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) | |
239 | #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) | |
240 | #define WLAN_CAPABILITY_PRIVACY (1<<4) | |
241 | #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) | |
242 | #define WLAN_CAPABILITY_PBCC (1<<6) | |
243 | #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) | |
f13baae4 JB |
244 | #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) |
245 | #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) | |
246 | #define WLAN_CAPABILITY_OSSS_OFDM (1<<13) | |
b453872c JG |
247 | |
248 | /* Status codes */ | |
95d5185d JB |
249 | enum ieee80211_statuscode { |
250 | WLAN_STATUS_SUCCESS = 0, | |
251 | WLAN_STATUS_UNSPECIFIED_FAILURE = 1, | |
252 | WLAN_STATUS_CAPS_UNSUPPORTED = 10, | |
253 | WLAN_STATUS_REASSOC_NO_ASSOC = 11, | |
254 | WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, | |
255 | WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, | |
256 | WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, | |
257 | WLAN_STATUS_CHALLENGE_FAIL = 15, | |
258 | WLAN_STATUS_AUTH_TIMEOUT = 16, | |
259 | WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, | |
260 | WLAN_STATUS_ASSOC_DENIED_RATES = 18, | |
261 | /* 802.11b */ | |
262 | WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, | |
263 | WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, | |
264 | WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, | |
265 | /* 802.11h */ | |
266 | WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, | |
267 | WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, | |
268 | WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, | |
269 | /* 802.11g */ | |
270 | WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, | |
271 | WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, | |
272 | /* 802.11i */ | |
273 | WLAN_STATUS_INVALID_IE = 40, | |
274 | WLAN_STATUS_INVALID_GROUP_CIPHER = 41, | |
275 | WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, | |
276 | WLAN_STATUS_INVALID_AKMP = 43, | |
277 | WLAN_STATUS_UNSUPP_RSN_VERSION = 44, | |
278 | WLAN_STATUS_INVALID_RSN_IE_CAP = 45, | |
279 | WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, | |
280 | }; | |
b453872c JG |
281 | |
282 | /* Reason codes */ | |
95d5185d JB |
283 | enum ieee80211_reasoncode { |
284 | WLAN_REASON_UNSPECIFIED = 1, | |
285 | WLAN_REASON_PREV_AUTH_NOT_VALID = 2, | |
286 | WLAN_REASON_DEAUTH_LEAVING = 3, | |
287 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, | |
288 | WLAN_REASON_DISASSOC_AP_BUSY = 5, | |
289 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, | |
290 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, | |
291 | WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, | |
292 | WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, | |
293 | /* 802.11h */ | |
294 | WLAN_REASON_DISASSOC_BAD_POWER = 10, | |
295 | WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, | |
296 | /* 802.11i */ | |
297 | WLAN_REASON_INVALID_IE = 13, | |
298 | WLAN_REASON_MIC_FAILURE = 14, | |
299 | WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, | |
300 | WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, | |
301 | WLAN_REASON_IE_DIFFERENT = 17, | |
302 | WLAN_REASON_INVALID_GROUP_CIPHER = 18, | |
303 | WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, | |
304 | WLAN_REASON_INVALID_AKMP = 20, | |
305 | WLAN_REASON_UNSUPP_RSN_VERSION = 21, | |
306 | WLAN_REASON_INVALID_RSN_IE_CAP = 22, | |
307 | WLAN_REASON_IEEE8021X_FAILED = 23, | |
308 | WLAN_REASON_CIPHER_SUITE_REJECTED = 24, | |
309 | }; | |
b453872c | 310 | |
b453872c JG |
311 | #define IEEE80211_STATMASK_SIGNAL (1<<0) |
312 | #define IEEE80211_STATMASK_RSSI (1<<1) | |
313 | #define IEEE80211_STATMASK_NOISE (1<<2) | |
314 | #define IEEE80211_STATMASK_RATE (1<<3) | |
315 | #define IEEE80211_STATMASK_WEMASK 0x7 | |
316 | ||
b453872c JG |
317 | #define IEEE80211_CCK_MODULATION (1<<0) |
318 | #define IEEE80211_OFDM_MODULATION (1<<1) | |
319 | ||
320 | #define IEEE80211_24GHZ_BAND (1<<0) | |
321 | #define IEEE80211_52GHZ_BAND (1<<1) | |
322 | ||
323 | #define IEEE80211_CCK_RATE_1MB 0x02 | |
324 | #define IEEE80211_CCK_RATE_2MB 0x04 | |
325 | #define IEEE80211_CCK_RATE_5MB 0x0B | |
326 | #define IEEE80211_CCK_RATE_11MB 0x16 | |
327 | #define IEEE80211_OFDM_RATE_6MB 0x0C | |
328 | #define IEEE80211_OFDM_RATE_9MB 0x12 | |
329 | #define IEEE80211_OFDM_RATE_12MB 0x18 | |
330 | #define IEEE80211_OFDM_RATE_18MB 0x24 | |
331 | #define IEEE80211_OFDM_RATE_24MB 0x30 | |
332 | #define IEEE80211_OFDM_RATE_36MB 0x48 | |
333 | #define IEEE80211_OFDM_RATE_48MB 0x60 | |
334 | #define IEEE80211_OFDM_RATE_54MB 0x6C | |
335 | #define IEEE80211_BASIC_RATE_MASK 0x80 | |
336 | ||
337 | #define IEEE80211_CCK_RATE_1MB_MASK (1<<0) | |
338 | #define IEEE80211_CCK_RATE_2MB_MASK (1<<1) | |
339 | #define IEEE80211_CCK_RATE_5MB_MASK (1<<2) | |
340 | #define IEEE80211_CCK_RATE_11MB_MASK (1<<3) | |
341 | #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) | |
342 | #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) | |
343 | #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) | |
344 | #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) | |
345 | #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) | |
346 | #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) | |
347 | #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) | |
348 | #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) | |
349 | ||
350 | #define IEEE80211_CCK_RATES_MASK 0x0000000F | |
351 | #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ | |
352 | IEEE80211_CCK_RATE_2MB_MASK) | |
353 | #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ | |
354 | IEEE80211_CCK_RATE_5MB_MASK | \ | |
355 | IEEE80211_CCK_RATE_11MB_MASK) | |
356 | ||
357 | #define IEEE80211_OFDM_RATES_MASK 0x00000FF0 | |
358 | #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ | |
359 | IEEE80211_OFDM_RATE_12MB_MASK | \ | |
360 | IEEE80211_OFDM_RATE_24MB_MASK) | |
361 | #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ | |
362 | IEEE80211_OFDM_RATE_9MB_MASK | \ | |
363 | IEEE80211_OFDM_RATE_18MB_MASK | \ | |
364 | IEEE80211_OFDM_RATE_36MB_MASK | \ | |
365 | IEEE80211_OFDM_RATE_48MB_MASK | \ | |
366 | IEEE80211_OFDM_RATE_54MB_MASK) | |
367 | #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ | |
368 | IEEE80211_CCK_DEFAULT_RATES_MASK) | |
369 | ||
370 | #define IEEE80211_NUM_OFDM_RATES 8 | |
371 | #define IEEE80211_NUM_CCK_RATES 4 | |
372 | #define IEEE80211_OFDM_SHIFT_MASK_A 4 | |
373 | ||
b453872c JG |
374 | /* NOTE: This data is for statistical purposes; not all hardware provides this |
375 | * information for frames received. Not setting these will not cause | |
376 | * any adverse affects. */ | |
377 | struct ieee80211_rx_stats { | |
378 | u32 mac_time; | |
379 | s8 rssi; | |
380 | u8 signal; | |
381 | u8 noise; | |
74079fdc | 382 | u16 rate; /* in 100 kbps */ |
b453872c JG |
383 | u8 received_channel; |
384 | u8 control; | |
385 | u8 mask; | |
386 | u8 freq; | |
387 | u16 len; | |
388 | }; | |
389 | ||
390 | /* IEEE 802.11 requires that STA supports concurrent reception of at least | |
391 | * three fragmented frames. This define can be increased to support more | |
392 | * concurrent frames, but it should be noted that each entry can consume about | |
393 | * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ | |
394 | #define IEEE80211_FRAG_CACHE_LEN 4 | |
395 | ||
396 | struct ieee80211_frag_entry { | |
397 | unsigned long first_frag_time; | |
398 | unsigned int seq; | |
399 | unsigned int last_frag; | |
400 | struct sk_buff *skb; | |
401 | u8 src_addr[ETH_ALEN]; | |
402 | u8 dst_addr[ETH_ALEN]; | |
403 | }; | |
404 | ||
405 | struct ieee80211_stats { | |
406 | unsigned int tx_unicast_frames; | |
407 | unsigned int tx_multicast_frames; | |
408 | unsigned int tx_fragments; | |
409 | unsigned int tx_unicast_octets; | |
410 | unsigned int tx_multicast_octets; | |
411 | unsigned int tx_deferred_transmissions; | |
412 | unsigned int tx_single_retry_frames; | |
413 | unsigned int tx_multiple_retry_frames; | |
414 | unsigned int tx_retry_limit_exceeded; | |
415 | unsigned int tx_discards; | |
416 | unsigned int rx_unicast_frames; | |
417 | unsigned int rx_multicast_frames; | |
418 | unsigned int rx_fragments; | |
419 | unsigned int rx_unicast_octets; | |
420 | unsigned int rx_multicast_octets; | |
421 | unsigned int rx_fcs_errors; | |
422 | unsigned int rx_discards_no_buffer; | |
423 | unsigned int tx_discards_wrong_sa; | |
424 | unsigned int rx_discards_undecryptable; | |
425 | unsigned int rx_message_in_msg_fragments; | |
426 | unsigned int rx_message_in_bad_msg_fragments; | |
427 | }; | |
428 | ||
429 | struct ieee80211_device; | |
430 | ||
431 | #include "ieee80211_crypt.h" | |
432 | ||
f1bf6638 JK |
433 | #define SEC_KEY_1 (1<<0) |
434 | #define SEC_KEY_2 (1<<1) | |
435 | #define SEC_KEY_3 (1<<2) | |
436 | #define SEC_KEY_4 (1<<3) | |
437 | #define SEC_ACTIVE_KEY (1<<4) | |
438 | #define SEC_AUTH_MODE (1<<5) | |
439 | #define SEC_UNICAST_GROUP (1<<6) | |
440 | #define SEC_LEVEL (1<<7) | |
441 | #define SEC_ENABLED (1<<8) | |
259bf1fd | 442 | #define SEC_ENCRYPT (1<<9) |
f1bf6638 JK |
443 | |
444 | #define SEC_LEVEL_0 0 /* None */ | |
445 | #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ | |
446 | #define SEC_LEVEL_2 2 /* Level 1 + TKIP */ | |
447 | #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ | |
448 | #define SEC_LEVEL_3 4 /* Level 2 + CCMP */ | |
449 | ||
e0d369d1 JK |
450 | #define SEC_ALG_NONE 0 |
451 | #define SEC_ALG_WEP 1 | |
452 | #define SEC_ALG_TKIP 2 | |
453 | #define SEC_ALG_CCMP 3 | |
454 | ||
f1bf6638 JK |
455 | #define WEP_KEYS 4 |
456 | #define WEP_KEY_LEN 13 | |
457 | #define SCM_KEY_LEN 32 | |
458 | #define SCM_TEMPORAL_KEY_LENGTH 16 | |
b453872c JG |
459 | |
460 | struct ieee80211_security { | |
461 | u16 active_key:2, | |
f1bf6638 JK |
462 | enabled:1, |
463 | auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1; | |
e0d369d1 | 464 | u8 encode_alg[WEP_KEYS]; |
b453872c | 465 | u8 key_sizes[WEP_KEYS]; |
f1bf6638 | 466 | u8 keys[WEP_KEYS][SCM_KEY_LEN]; |
b453872c JG |
467 | u8 level; |
468 | u16 flags; | |
469 | } __attribute__ ((packed)); | |
470 | ||
b453872c JG |
471 | /* |
472 | ||
473 | 802.11 data frame from AP | |
474 | ||
475 | ,-------------------------------------------------------------------. | |
476 | Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | | |
477 | |------|------|---------|---------|---------|------|---------|------| | |
478 | Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | | |
479 | | | tion | (BSSID) | | | ence | data | | | |
480 | `-------------------------------------------------------------------' | |
481 | ||
482 | Total: 28-2340 bytes | |
483 | ||
484 | */ | |
485 | ||
b453872c JG |
486 | #define BEACON_PROBE_SSID_ID_POSITION 12 |
487 | ||
488 | /* Management Frame Information Element Types */ | |
95d5185d JB |
489 | enum ieee80211_mfie { |
490 | MFIE_TYPE_SSID = 0, | |
491 | MFIE_TYPE_RATES = 1, | |
492 | MFIE_TYPE_FH_SET = 2, | |
493 | MFIE_TYPE_DS_SET = 3, | |
74079fdc | 494 | MFIE_TYPE_CF_SET = 4, |
95d5185d JB |
495 | MFIE_TYPE_TIM = 5, |
496 | MFIE_TYPE_IBSS_SET = 6, | |
497 | MFIE_TYPE_COUNTRY = 7, | |
498 | MFIE_TYPE_HOP_PARAMS = 8, | |
499 | MFIE_TYPE_HOP_TABLE = 9, | |
500 | MFIE_TYPE_REQUEST = 10, | |
501 | MFIE_TYPE_CHALLENGE = 16, | |
502 | MFIE_TYPE_POWER_CONSTRAINT = 32, | |
503 | MFIE_TYPE_POWER_CAPABILITY = 33, | |
504 | MFIE_TYPE_TPC_REQUEST = 34, | |
505 | MFIE_TYPE_TPC_REPORT = 35, | |
506 | MFIE_TYPE_SUPP_CHANNELS = 36, | |
507 | MFIE_TYPE_CSA = 37, | |
508 | MFIE_TYPE_MEASURE_REQUEST = 38, | |
509 | MFIE_TYPE_MEASURE_REPORT = 39, | |
510 | MFIE_TYPE_QUIET = 40, | |
511 | MFIE_TYPE_IBSS_DFS = 41, | |
512 | MFIE_TYPE_ERP_INFO = 42, | |
513 | MFIE_TYPE_RSN = 48, | |
514 | MFIE_TYPE_RATES_EX = 50, | |
515 | MFIE_TYPE_GENERIC = 221, | |
516 | }; | |
b453872c | 517 | |
b453872c JG |
518 | struct ieee80211_info_element { |
519 | u8 id; | |
520 | u8 len; | |
521 | u8 data[0]; | |
522 | } __attribute__ ((packed)); | |
523 | ||
524 | /* | |
525 | * These are the data types that can make up management packets | |
526 | * | |
527 | u16 auth_algorithm; | |
528 | u16 auth_sequence; | |
529 | u16 beacon_interval; | |
530 | u16 capability; | |
531 | u8 current_ap[ETH_ALEN]; | |
532 | u16 listen_interval; | |
533 | struct { | |
534 | u16 association_id:14, reserved:2; | |
535 | } __attribute__ ((packed)); | |
536 | u32 time_stamp[2]; | |
537 | u16 reason; | |
538 | u16 status; | |
539 | */ | |
540 | ||
541 | struct ieee80211_authentication { | |
286d9747 | 542 | struct ieee80211_hdr_3addr header; |
099c5bb1 JB |
543 | __le16 algorithm; |
544 | __le16 transaction; | |
545 | __le16 status; | |
68e4e036 | 546 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
547 | } __attribute__ ((packed)); |
548 | ||
b453872c | 549 | struct ieee80211_probe_response { |
286d9747 | 550 | struct ieee80211_hdr_3addr header; |
b453872c | 551 | u32 time_stamp[2]; |
099c5bb1 JB |
552 | __le16 beacon_interval; |
553 | __le16 capability; | |
68e4e036 | 554 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
555 | } __attribute__ ((packed)); |
556 | ||
557 | struct ieee80211_assoc_request_frame { | |
099c5bb1 JB |
558 | __le16 capability; |
559 | __le16 listen_interval; | |
b453872c | 560 | u8 current_ap[ETH_ALEN]; |
68e4e036 | 561 | struct ieee80211_info_element info_element[0]; |
b453872c JG |
562 | } __attribute__ ((packed)); |
563 | ||
564 | struct ieee80211_assoc_response_frame { | |
565 | struct ieee80211_hdr_3addr header; | |
099c5bb1 JB |
566 | __le16 capability; |
567 | __le16 status; | |
568 | __le16 aid; | |
68e4e036 | 569 | struct ieee80211_info_element info_element[0]; /* supported rates */ |
b453872c JG |
570 | } __attribute__ ((packed)); |
571 | ||
b453872c JG |
572 | struct ieee80211_txb { |
573 | u8 nr_frags; | |
574 | u8 encrypted; | |
575 | u16 reserved; | |
576 | u16 frag_size; | |
577 | u16 payload_size; | |
578 | struct sk_buff *fragments[0]; | |
579 | }; | |
580 | ||
099c5bb1 | 581 | /* SWEEP TABLE ENTRIES NUMBER */ |
b453872c JG |
582 | #define MAX_SWEEP_TAB_ENTRIES 42 |
583 | #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 | |
584 | /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs | |
585 | * only use 8, and then use extended rates for the remaining supported | |
586 | * rates. Other APs, however, stick all of their supported rates on the | |
587 | * main rates information element... */ | |
588 | #define MAX_RATES_LENGTH ((u8)12) | |
589 | #define MAX_RATES_EX_LENGTH ((u8)16) | |
590 | #define MAX_NETWORK_COUNT 128 | |
591 | ||
592 | #define CRC_LENGTH 4U | |
593 | ||
594 | #define MAX_WPA_IE_LEN 64 | |
595 | ||
596 | #define NETWORK_EMPTY_ESSID (1<<0) | |
597 | #define NETWORK_HAS_OFDM (1<<1) | |
598 | #define NETWORK_HAS_CCK (1<<2) | |
599 | ||
600 | struct ieee80211_network { | |
601 | /* These entries are used to identify a unique network */ | |
602 | u8 bssid[ETH_ALEN]; | |
603 | u8 channel; | |
604 | /* Ensure null-terminated for any debug msgs */ | |
605 | u8 ssid[IW_ESSID_MAX_SIZE + 1]; | |
606 | u8 ssid_len; | |
607 | ||
608 | /* These are network statistics */ | |
609 | struct ieee80211_rx_stats stats; | |
610 | u16 capability; | |
611 | u8 rates[MAX_RATES_LENGTH]; | |
612 | u8 rates_len; | |
613 | u8 rates_ex[MAX_RATES_EX_LENGTH]; | |
614 | u8 rates_ex_len; | |
615 | unsigned long last_scanned; | |
616 | u8 mode; | |
617 | u8 flags; | |
618 | u32 last_associate; | |
619 | u32 time_stamp[2]; | |
620 | u16 beacon_interval; | |
621 | u16 listen_interval; | |
622 | u16 atim_window; | |
623 | u8 wpa_ie[MAX_WPA_IE_LEN]; | |
624 | size_t wpa_ie_len; | |
625 | u8 rsn_ie[MAX_WPA_IE_LEN]; | |
626 | size_t rsn_ie_len; | |
627 | struct list_head list; | |
628 | }; | |
629 | ||
630 | enum ieee80211_state { | |
631 | IEEE80211_UNINITIALIZED = 0, | |
632 | IEEE80211_INITIALIZED, | |
633 | IEEE80211_ASSOCIATING, | |
634 | IEEE80211_ASSOCIATED, | |
635 | IEEE80211_AUTHENTICATING, | |
636 | IEEE80211_AUTHENTICATED, | |
637 | IEEE80211_SHUTDOWN | |
638 | }; | |
639 | ||
640 | #define DEFAULT_MAX_SCAN_AGE (15 * HZ) | |
641 | #define DEFAULT_FTS 2346 | |
b453872c | 642 | |
b453872c JG |
643 | #define CFG_IEEE80211_RESERVE_FCS (1<<0) |
644 | #define CFG_IEEE80211_COMPUTE_FCS (1<<1) | |
645 | ||
646 | struct ieee80211_device { | |
647 | struct net_device *dev; | |
f1bf6638 | 648 | struct ieee80211_security sec; |
b453872c JG |
649 | |
650 | /* Bookkeeping structures */ | |
651 | struct net_device_stats stats; | |
652 | struct ieee80211_stats ieee_stats; | |
653 | ||
654 | /* Probe / Beacon management */ | |
655 | struct list_head network_free_list; | |
656 | struct list_head network_list; | |
657 | struct ieee80211_network *networks; | |
658 | int scans; | |
659 | int scan_age; | |
660 | ||
74079fdc JK |
661 | int iw_mode; /* operating mode (IW_MODE_*) */ |
662 | struct iw_spy_data spy_data; /* iwspy support */ | |
b453872c JG |
663 | |
664 | spinlock_t lock; | |
665 | ||
74079fdc JK |
666 | int tx_headroom; /* Set to size of any additional room needed at front |
667 | * of allocated Tx SKBs */ | |
b453872c JG |
668 | u32 config; |
669 | ||
670 | /* WEP and other encryption related settings at the device level */ | |
74079fdc | 671 | int open_wep; /* Set to 1 to allow unencrypted frames */ |
b453872c | 672 | |
74079fdc | 673 | int reset_on_keychange; /* Set to 1 if the HW needs to be reset on |
b453872c JG |
674 | * WEP key changes */ |
675 | ||
676 | /* If the host performs {en,de}cryption, then set to 1 */ | |
677 | int host_encrypt; | |
678 | int host_decrypt; | |
74079fdc | 679 | int ieee802_1x; /* is IEEE 802.1X used */ |
b453872c JG |
680 | |
681 | /* WPA data */ | |
682 | int wpa_enabled; | |
683 | int drop_unencrypted; | |
684 | int tkip_countermeasures; | |
685 | int privacy_invoked; | |
686 | size_t wpa_ie_len; | |
687 | u8 *wpa_ie; | |
688 | ||
689 | struct list_head crypt_deinit_list; | |
690 | struct ieee80211_crypt_data *crypt[WEP_KEYS]; | |
74079fdc | 691 | int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ |
b453872c | 692 | struct timer_list crypt_deinit_timer; |
0ad0c3c6 | 693 | int crypt_quiesced; |
b453872c | 694 | |
74079fdc JK |
695 | int bcrx_sta_key; /* use individual keys to override default keys even |
696 | * with RX of broad/multicast frames */ | |
b453872c JG |
697 | |
698 | /* Fragmentation structures */ | |
699 | struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN]; | |
700 | unsigned int frag_next_idx; | |
74079fdc | 701 | u16 fts; /* Fragmentation Threshold */ |
b453872c JG |
702 | |
703 | /* Association info */ | |
704 | u8 bssid[ETH_ALEN]; | |
705 | ||
706 | enum ieee80211_state state; | |
707 | ||
74079fdc JK |
708 | int mode; /* A, B, G */ |
709 | int modulation; /* CCK, OFDM */ | |
710 | int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ | |
3bc5ed68 | 711 | int abg_true; /* ABG flag */ |
b453872c | 712 | |
b1b508e1 JK |
713 | int perfect_rssi; |
714 | int worst_rssi; | |
715 | ||
b453872c | 716 | /* Callback functions */ |
74079fdc JK |
717 | void (*set_security) (struct net_device * dev, |
718 | struct ieee80211_security * sec); | |
719 | int (*hard_start_xmit) (struct ieee80211_txb * txb, | |
720 | struct net_device * dev); | |
721 | int (*reset_port) (struct net_device * dev); | |
b453872c JG |
722 | |
723 | /* This must be the last item so that it points to the data | |
724 | * allocated beyond this structure by alloc_ieee80211 */ | |
725 | u8 priv[0]; | |
726 | }; | |
727 | ||
728 | #define IEEE_A (1<<0) | |
729 | #define IEEE_B (1<<1) | |
730 | #define IEEE_G (1<<2) | |
731 | #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) | |
732 | ||
733 | extern inline void *ieee80211_priv(struct net_device *dev) | |
734 | { | |
735 | return ((struct ieee80211_device *)netdev_priv(dev))->priv; | |
736 | } | |
737 | ||
738 | extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len) | |
739 | { | |
740 | /* Single white space is for Linksys APs */ | |
741 | if (essid_len == 1 && essid[0] == ' ') | |
742 | return 1; | |
743 | ||
744 | /* Otherwise, if the entire essid is 0, we assume it is hidden */ | |
745 | while (essid_len) { | |
746 | essid_len--; | |
747 | if (essid[essid_len] != '\0') | |
748 | return 0; | |
749 | } | |
750 | ||
751 | return 1; | |
752 | } | |
753 | ||
74079fdc JK |
754 | extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, |
755 | int mode) | |
b453872c JG |
756 | { |
757 | /* | |
758 | * It is possible for both access points and our device to support | |
759 | * combinations of modes, so as long as there is one valid combination | |
760 | * of ap/device supported modes, then return success | |
761 | * | |
762 | */ | |
763 | if ((mode & IEEE_A) && | |
764 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
765 | (ieee->freq_band & IEEE80211_52GHZ_BAND)) | |
766 | return 1; | |
767 | ||
768 | if ((mode & IEEE_G) && | |
769 | (ieee->modulation & IEEE80211_OFDM_MODULATION) && | |
770 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
771 | return 1; | |
772 | ||
773 | if ((mode & IEEE_B) && | |
774 | (ieee->modulation & IEEE80211_CCK_MODULATION) && | |
775 | (ieee->freq_band & IEEE80211_24GHZ_BAND)) | |
776 | return 1; | |
777 | ||
778 | return 0; | |
779 | } | |
780 | ||
781 | extern inline int ieee80211_get_hdrlen(u16 fc) | |
782 | { | |
286d9747 | 783 | int hdrlen = IEEE80211_3ADDR_LEN; |
b453872c JG |
784 | |
785 | switch (WLAN_FC_GET_TYPE(fc)) { | |
786 | case IEEE80211_FTYPE_DATA: | |
787 | if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) | |
286d9747 | 788 | hdrlen = IEEE80211_4ADDR_LEN; |
b453872c JG |
789 | break; |
790 | case IEEE80211_FTYPE_CTL: | |
791 | switch (WLAN_FC_GET_STYPE(fc)) { | |
792 | case IEEE80211_STYPE_CTS: | |
793 | case IEEE80211_STYPE_ACK: | |
286d9747 | 794 | hdrlen = IEEE80211_1ADDR_LEN; |
b453872c JG |
795 | break; |
796 | default: | |
286d9747 | 797 | hdrlen = IEEE80211_2ADDR_LEN; |
b453872c JG |
798 | break; |
799 | } | |
800 | break; | |
801 | } | |
802 | ||
803 | return hdrlen; | |
804 | } | |
805 | ||
b453872c JG |
806 | /* ieee80211.c */ |
807 | extern void free_ieee80211(struct net_device *dev); | |
808 | extern struct net_device *alloc_ieee80211(int sizeof_priv); | |
809 | ||
810 | extern int ieee80211_set_encryption(struct ieee80211_device *ieee); | |
811 | ||
812 | /* ieee80211_tx.c */ | |
74079fdc | 813 | extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); |
b453872c JG |
814 | extern void ieee80211_txb_free(struct ieee80211_txb *); |
815 | ||
b453872c JG |
816 | /* ieee80211_rx.c */ |
817 | extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, | |
818 | struct ieee80211_rx_stats *rx_stats); | |
819 | extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, | |
820 | struct ieee80211_hdr *header, | |
821 | struct ieee80211_rx_stats *stats); | |
822 | ||
099c5bb1 | 823 | /* ieee80211_wx.c */ |
b453872c JG |
824 | extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, |
825 | struct iw_request_info *info, | |
826 | union iwreq_data *wrqu, char *key); | |
827 | extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee, | |
828 | struct iw_request_info *info, | |
829 | union iwreq_data *wrqu, char *key); | |
830 | extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee, | |
831 | struct iw_request_info *info, | |
832 | union iwreq_data *wrqu, char *key); | |
e0d369d1 JK |
833 | #if WIRELESS_EXT > 17 |
834 | extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee, | |
835 | struct iw_request_info *info, | |
836 | union iwreq_data *wrqu, char *extra); | |
837 | extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee, | |
838 | struct iw_request_info *info, | |
839 | union iwreq_data *wrqu, char *extra); | |
840 | #endif | |
b453872c | 841 | |
b453872c JG |
842 | extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee) |
843 | { | |
844 | ieee->scans++; | |
845 | } | |
846 | ||
847 | extern inline int ieee80211_get_scans(struct ieee80211_device *ieee) | |
848 | { | |
849 | return ieee->scans; | |
850 | } | |
851 | ||
74079fdc | 852 | #endif /* IEEE80211_H */ |