Jiri Benc | a9de8ce | 2007-05-05 11:43:04 -0700 | [diff] [blame] | 1 | /* |
| 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 | |
| 98 | struct 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 | |
| 109 | struct 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 */ |
| 194 | struct ieee80211_rts { |
| 195 | __le16 frame_control; |
| 196 | __le16 duration; |
| 197 | u8 ra[6]; |
| 198 | u8 ta[6]; |
| 199 | } __attribute__ ((packed)); |
| 200 | |
| 201 | struct 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 */ |
| 231 | enum 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 */ |
| 266 | enum 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 */ |
| 296 | enum 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 */ |