blob: ecd61e8438a5132cb20116517858d4e84e05d1b7 [file] [log] [blame]
Jiri Benca9de8ce2007-05-05 11:43:04 -07001/*
2 * IEEE 802.11 defines
3 *
4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
5 * <jkmaline@cc.hut.fi>
6 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
7 * Copyright (c) 2005, Devicescape Software, Inc.
8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#ifndef IEEE80211_H
16#define IEEE80211_H
17
18#include <linux/types.h>
19
20#define FCS_LEN 4
21
22#define IEEE80211_FCTL_VERS 0x0003
23#define IEEE80211_FCTL_FTYPE 0x000c
24#define IEEE80211_FCTL_STYPE 0x00f0
25#define IEEE80211_FCTL_TODS 0x0100
26#define IEEE80211_FCTL_FROMDS 0x0200
27#define IEEE80211_FCTL_MOREFRAGS 0x0400
28#define IEEE80211_FCTL_RETRY 0x0800
29#define IEEE80211_FCTL_PM 0x1000
30#define IEEE80211_FCTL_MOREDATA 0x2000
31#define IEEE80211_FCTL_PROTECTED 0x4000
32#define IEEE80211_FCTL_ORDER 0x8000
33
34#define IEEE80211_SCTL_FRAG 0x000F
35#define IEEE80211_SCTL_SEQ 0xFFF0
36
37#define IEEE80211_FTYPE_MGMT 0x0000
38#define IEEE80211_FTYPE_CTL 0x0004
39#define IEEE80211_FTYPE_DATA 0x0008
40
41/* management */
42#define IEEE80211_STYPE_ASSOC_REQ 0x0000
43#define IEEE80211_STYPE_ASSOC_RESP 0x0010
44#define IEEE80211_STYPE_REASSOC_REQ 0x0020
45#define IEEE80211_STYPE_REASSOC_RESP 0x0030
46#define IEEE80211_STYPE_PROBE_REQ 0x0040
47#define IEEE80211_STYPE_PROBE_RESP 0x0050
48#define IEEE80211_STYPE_BEACON 0x0080
49#define IEEE80211_STYPE_ATIM 0x0090
50#define IEEE80211_STYPE_DISASSOC 0x00A0
51#define IEEE80211_STYPE_AUTH 0x00B0
52#define IEEE80211_STYPE_DEAUTH 0x00C0
53#define IEEE80211_STYPE_ACTION 0x00D0
54
55/* control */
56#define IEEE80211_STYPE_PSPOLL 0x00A0
57#define IEEE80211_STYPE_RTS 0x00B0
58#define IEEE80211_STYPE_CTS 0x00C0
59#define IEEE80211_STYPE_ACK 0x00D0
60#define IEEE80211_STYPE_CFEND 0x00E0
61#define IEEE80211_STYPE_CFENDACK 0x00F0
62
63/* data */
64#define IEEE80211_STYPE_DATA 0x0000
65#define IEEE80211_STYPE_DATA_CFACK 0x0010
66#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
67#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
68#define IEEE80211_STYPE_NULLFUNC 0x0040
69#define IEEE80211_STYPE_CFACK 0x0050
70#define IEEE80211_STYPE_CFPOLL 0x0060
71#define IEEE80211_STYPE_CFACKPOLL 0x0070
72#define IEEE80211_STYPE_QOS_DATA 0x0080
73#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
74#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
75#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
76#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
77#define IEEE80211_STYPE_QOS_CFACK 0x00D0
78#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
79#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
80
81
82/* miscellaneous IEEE 802.11 constants */
83#define IEEE80211_MAX_FRAG_THRESHOLD 2346
84#define IEEE80211_MAX_RTS_THRESHOLD 2347
85#define IEEE80211_MAX_AID 2007
86#define IEEE80211_MAX_TIM_LEN 251
87#define IEEE80211_MAX_DATA_LEN 2304
88/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
89 6.2.1.1.2.
90
91 The figure in section 7.1.2 suggests a body size of up to 2312
92 bytes is allowed, which is a bit confusing, I suspect this
93 represents the 2304 bytes of real data, plus a possible 8 bytes of
94 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
95
96#define IEEE80211_MAX_SSID_LEN 32
97
98struct ieee80211_hdr {
99 __le16 frame_control;
100 __le16 duration_id;
101 u8 addr1[6];
102 u8 addr2[6];
103 u8 addr3[6];
104 __le16 seq_ctrl;
105 u8 addr4[6];
106} __attribute__ ((packed));
107
108
109struct ieee80211_mgmt {
110 __le16 frame_control;
111 __le16 duration;
112 u8 da[6];
113 u8 sa[6];
114 u8 bssid[6];
115 __le16 seq_ctrl;
116 union {
117 struct {
118 __le16 auth_alg;
119 __le16 auth_transaction;
120 __le16 status_code;
121 /* possibly followed by Challenge text */
122 u8 variable[0];
123 } __attribute__ ((packed)) auth;
124 struct {
125 __le16 reason_code;
126 } __attribute__ ((packed)) deauth;
127 struct {
128 __le16 capab_info;
129 __le16 listen_interval;
130 /* followed by SSID and Supported rates */
131 u8 variable[0];
132 } __attribute__ ((packed)) assoc_req;
133 struct {
134 __le16 capab_info;
135 __le16 status_code;
136 __le16 aid;
137 /* followed by Supported rates */
138 u8 variable[0];
139 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
140 struct {
141 __le16 capab_info;
142 __le16 listen_interval;
143 u8 current_ap[6];
144 /* followed by SSID and Supported rates */
145 u8 variable[0];
146 } __attribute__ ((packed)) reassoc_req;
147 struct {
148 __le16 reason_code;
149 } __attribute__ ((packed)) disassoc;
150 struct {
151 __le64 timestamp;
152 __le16 beacon_int;
153 __le16 capab_info;
154 /* followed by some of SSID, Supported rates,
155 * FH Params, DS Params, CF Params, IBSS Params, TIM */
156 u8 variable[0];
157 } __attribute__ ((packed)) beacon;
158 struct {
159 /* only variable items: SSID, Supported rates */
160 u8 variable[0];
161 } __attribute__ ((packed)) probe_req;
162 struct {
163 __le64 timestamp;
164 __le16 beacon_int;
165 __le16 capab_info;
166 /* followed by some of SSID, Supported rates,
167 * FH Params, DS Params, CF Params, IBSS Params */
168 u8 variable[0];
169 } __attribute__ ((packed)) probe_resp;
170 struct {
171 u8 category;
172 union {
173 struct {
174 u8 action_code;
175 u8 dialog_token;
176 u8 status_code;
177 u8 variable[0];
178 } __attribute__ ((packed)) wme_action;
179 struct{
180 u8 action_code;
181 u8 element_id;
182 u8 length;
183 u8 switch_mode;
184 u8 new_chan;
185 u8 switch_count;
186 } __attribute__((packed)) chan_switch;
187 } u;
188 } __attribute__ ((packed)) action;
189 } u;
190} __attribute__ ((packed));
191
192
193/* Control frames */
194struct ieee80211_rts {
195 __le16 frame_control;
196 __le16 duration;
197 u8 ra[6];
198 u8 ta[6];
199} __attribute__ ((packed));
200
201struct ieee80211_cts {
202 __le16 frame_control;
203 __le16 duration;
204 u8 ra[6];
205} __attribute__ ((packed));
206
207
208/* Authentication algorithms */
209#define WLAN_AUTH_OPEN 0
210#define WLAN_AUTH_SHARED_KEY 1
211#define WLAN_AUTH_FAST_BSS_TRANSITION 2
212#define WLAN_AUTH_LEAP 128
213
214#define WLAN_AUTH_CHALLENGE_LEN 128
215
216#define WLAN_CAPABILITY_ESS (1<<0)
217#define WLAN_CAPABILITY_IBSS (1<<1)
218#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
219#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
220#define WLAN_CAPABILITY_PRIVACY (1<<4)
221#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
222#define WLAN_CAPABILITY_PBCC (1<<6)
223#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
224/* 802.11h */
225#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
226#define WLAN_CAPABILITY_QOS (1<<9)
227#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
228#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
229
230/* Status codes */
231enum ieee80211_statuscode {
232 WLAN_STATUS_SUCCESS = 0,
233 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
234 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
235 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
236 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
237 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
238 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
239 WLAN_STATUS_CHALLENGE_FAIL = 15,
240 WLAN_STATUS_AUTH_TIMEOUT = 16,
241 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
242 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
243 /* 802.11b */
244 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
245 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
246 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
247 /* 802.11h */
248 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
249 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
250 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
251 /* 802.11g */
252 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
253 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
254 /* 802.11i */
255 WLAN_STATUS_INVALID_IE = 40,
256 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
257 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
258 WLAN_STATUS_INVALID_AKMP = 43,
259 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
260 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
261 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
262};
263
264
265/* Reason codes */
266enum ieee80211_reasoncode {
267 WLAN_REASON_UNSPECIFIED = 1,
268 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
269 WLAN_REASON_DEAUTH_LEAVING = 3,
270 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
271 WLAN_REASON_DISASSOC_AP_BUSY = 5,
272 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
273 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
274 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
275 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
276 /* 802.11h */
277 WLAN_REASON_DISASSOC_BAD_POWER = 10,
278 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
279 /* 802.11i */
280 WLAN_REASON_INVALID_IE = 13,
281 WLAN_REASON_MIC_FAILURE = 14,
282 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
283 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
284 WLAN_REASON_IE_DIFFERENT = 17,
285 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
286 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
287 WLAN_REASON_INVALID_AKMP = 20,
288 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
289 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
290 WLAN_REASON_IEEE8021X_FAILED = 23,
291 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
292};
293
294
295/* Information Element IDs */
296enum ieee80211_eid {
297 WLAN_EID_SSID = 0,
298 WLAN_EID_SUPP_RATES = 1,
299 WLAN_EID_FH_PARAMS = 2,
300 WLAN_EID_DS_PARAMS = 3,
301 WLAN_EID_CF_PARAMS = 4,
302 WLAN_EID_TIM = 5,
303 WLAN_EID_IBSS_PARAMS = 6,
304 WLAN_EID_CHALLENGE = 16,
305 /* 802.11d */
306 WLAN_EID_COUNTRY = 7,
307 WLAN_EID_HP_PARAMS = 8,
308 WLAN_EID_HP_TABLE = 9,
309 WLAN_EID_REQUEST = 10,
310 /* 802.11h */
311 WLAN_EID_PWR_CONSTRAINT = 32,
312 WLAN_EID_PWR_CAPABILITY = 33,
313 WLAN_EID_TPC_REQUEST = 34,
314 WLAN_EID_TPC_REPORT = 35,
315 WLAN_EID_SUPPORTED_CHANNELS = 36,
316 WLAN_EID_CHANNEL_SWITCH = 37,
317 WLAN_EID_MEASURE_REQUEST = 38,
318 WLAN_EID_MEASURE_REPORT = 39,
319 WLAN_EID_QUIET = 40,
320 WLAN_EID_IBSS_DFS = 41,
321 /* 802.11g */
322 WLAN_EID_ERP_INFO = 42,
323 WLAN_EID_EXT_SUPP_RATES = 50,
324 /* 802.11i */
325 WLAN_EID_RSN = 48,
326 WLAN_EID_WPA = 221,
327 WLAN_EID_GENERIC = 221,
328 WLAN_EID_VENDOR_SPECIFIC = 221,
329 WLAN_EID_QOS_PARAMETER = 222
330};
331
332/* cipher suite selectors */
333#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
334#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
335#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
336/* reserved: 0x000FAC03 */
337#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
338#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
339
340#define WLAN_MAX_KEY_LEN 32
341
342#endif /* IEEE80211_H */