sys/netproto/802_11/ieee80211.h

   1 /*
   2  * Copyright (c) 2001 Atsushi Onoe
   3  * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * Alternatively, this software may be distributed under the terms of the
  18  * GNU General Public License ("GPL") version 2 as published by the Free
  19  * Software Foundation.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.9.2.2 2006/08/10 06:07:49 sam Exp $
  33  * $DragonFly: src/sys/netproto/802_11/ieee80211.h,v 1.7 2007/04/01 13:59:40 sephe Exp $
  34  */
  35 #ifndef _NET80211_IEEE80211_H_
  36 #define _NET80211_IEEE80211_H_
  37
  38 /*
  39  * 802.11 protocol definitions.
  40  */
  41
  42 #define IEEE80211_ADDR_LEN      6               /* size of 802.11 address */
  43 #define IEEE80211_FCS_LEN       4               /* size of 802.11 frame FCS */
  44
  45 /* is 802.11 address multicast/broadcast? */
  46 #define IEEE80211_IS_MULTICAST(_a)      (*(_a) & 0x01)
  47
  48 /* IEEE 802.11 PLCP header */
  49 struct ieee80211_plcp_hdr {
  50         uint16_t        i_sfd;
  51         uint8_t         i_signal;
  52         uint8_t         i_service;
  53         uint16_t        i_length;
  54         uint16_t        i_crc;
  55 } __packed;
  56
  57 #define IEEE80211_PLCP_SFD      0xF3A0
  58 #define IEEE80211_PLCP_SERVICE  0x00
  59
  60 /*
  61  * generic definitions for IEEE 802.11 frames
  62  */
  63 struct ieee80211_frame {
  64         uint8_t         i_fc[2];
  65         uint8_t         i_dur[2];
  66         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  67         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  68         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  69         uint8_t         i_seq[2];
  70         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
  71         /* see below */
  72 } __packed;
  73
  74 struct ieee80211_qosframe {
  75         uint8_t         i_fc[2];
  76         uint8_t         i_dur[2];
  77         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  78         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  79         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  80         uint8_t         i_seq[2];
  81         uint8_t         i_qos[2];
  82         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
  83         /* see below */
  84 } __packed;
  85
  86 struct ieee80211_qoscntl {
  87         uint8_t         i_qos[2];
  88 };
  89
  90 struct ieee80211_frame_addr4 {
  91         uint8_t         i_fc[2];
  92         uint8_t         i_dur[2];
  93         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  94         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  95         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  96         uint8_t         i_seq[2];
  97         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
  98 } __packed;
  99
 100
 101 struct ieee80211_qosframe_addr4 {
 102         uint8_t         i_fc[2];
 103         uint8_t         i_dur[2];
 104         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 105         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 106         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
 107         uint8_t         i_seq[2];
 108         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
 109         uint8_t         i_qos[2];
 110 } __packed;
 111
 112 #define IEEE80211_FC0_VERSION_MASK              0x03
 113 #define IEEE80211_FC0_VERSION_SHIFT             0
 114 #define IEEE80211_FC0_VERSION_0                 0x00
 115 #define IEEE80211_FC0_TYPE_MASK                 0x0c
 116 #define IEEE80211_FC0_TYPE_SHIFT                2
 117 #define IEEE80211_FC0_TYPE_MGT                  0x00
 118 #define IEEE80211_FC0_TYPE_CTL                  0x04
 119 #define IEEE80211_FC0_TYPE_DATA                 0x08
 120
 121 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
 122 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
 123 /* for TYPE_MGT */
 124 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
 125 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
 126 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
 127 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
 128 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
 129 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
 130 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
 131 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
 132 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
 133 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
 134 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
 135 /* for TYPE_CTL */
 136 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
 137 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
 138 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
 139 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
 140 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
 141 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
 142 /* for TYPE_DATA (bit combination) */
 143 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
 144 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
 145 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
 146 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
 147 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
 148 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
 149 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
 150 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
 151 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
 152 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0
 153
 154 #define IEEE80211_FC1_DIR_MASK                  0x03
 155 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
 156 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
 157 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
 158 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
 159
 160 #define IEEE80211_FC1_MORE_FRAG                 0x04
 161 #define IEEE80211_FC1_RETRY                     0x08
 162 #define IEEE80211_FC1_PWR_MGT                   0x10
 163 #define IEEE80211_FC1_MORE_DATA                 0x20
 164 #define IEEE80211_FC1_WEP                       0x40
 165 #define IEEE80211_FC1_ORDER                     0x80
 166
 167 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
 168 #define IEEE80211_SEQ_FRAG_SHIFT                0
 169 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
 170 #define IEEE80211_SEQ_SEQ_SHIFT                 4
 171
 172 #define IEEE80211_NWID_LEN                      32
 173
 174 #define IEEE80211_QOS_TXOP                      0x00ff
 175 /* bit 8 is reserved */
 176 #define IEEE80211_QOS_ACKPOLICY                 0x60
 177 #define IEEE80211_QOS_ACKPOLICY_S               5
 178 #define IEEE80211_QOS_ESOP                      0x10
 179 #define IEEE80211_QOS_ESOP_S                    4
 180 #define IEEE80211_QOS_TID                       0x0f
 181
 182 /* does frame have QoS sequence control data */
 183 #define IEEE80211_QOS_HAS_SEQ(wh) \
 184         (((wh)->i_fc[0] & \
 185           (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
 186           (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
 187
 188 /*
 189  * WME/802.11e information element.
 190  */
 191 struct ieee80211_wme_info {
 192         uint8_t         wme_id;         /* IEEE80211_ELEMID_VENDOR */
 193         uint8_t         wme_len;        /* length in bytes */
 194         uint8_t         wme_oui[3];     /* 0x00, 0x50, 0xf2 */
 195         uint8_t         wme_type;       /* OUI type */
 196         uint8_t         wme_subtype;    /* OUI subtype */
 197         uint8_t         wme_version;    /* spec revision */
 198         uint8_t         wme_info;       /* QoS info */
 199 } __packed;
 200
 201 /*
 202  * WME/802.11e Tspec Element
 203  */
 204 struct ieee80211_wme_tspec {
 205         uint8_t         ts_id;
 206         uint8_t         ts_len;
 207         uint8_t         ts_oui[3];
 208         uint8_t         ts_oui_type;
 209         uint8_t         ts_oui_subtype;
 210         uint8_t         ts_version;
 211         uint8_t         ts_tsinfo[3];
 212         uint8_t         ts_nom_msdu[2];
 213         uint8_t         ts_max_msdu[2];
 214         uint8_t         ts_min_svc[4];
 215         uint8_t         ts_max_svc[4];
 216         uint8_t         ts_inactv_intv[4];
 217         uint8_t         ts_susp_intv[4];
 218         uint8_t         ts_start_svc[4];
 219         uint8_t         ts_min_rate[4];
 220         uint8_t         ts_mean_rate[4];
 221         uint8_t         ts_max_burst[4];
 222         uint8_t         ts_min_phy[4];
 223         uint8_t         ts_peak_rate[4];
 224         uint8_t         ts_delay[4];
 225         uint8_t         ts_surplus[2];
 226         uint8_t         ts_medium_time[2];
 227 } __packed;
 228
 229 /*
 230  * WME AC parameter field
 231  */
 232 struct ieee80211_wme_acparams {
 233         uint8_t         acp_aci_aifsn;
 234         uint8_t         acp_logcwminmax;
 235         uint16_t        acp_txop;
 236 } __packed;
 237
 238 #define WME_NUM_AC              4       /* 4 AC categories */
 239
 240 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
 241 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
 242 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
 243 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
 244 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
 245 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
 246 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
 247 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
 248 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
 249 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
 250
 251 #define WME_AC_TO_TID(_ac) (       \
 252         ((_ac) == WME_AC_VO) ? 6 : \
 253         ((_ac) == WME_AC_VI) ? 5 : \
 254         ((_ac) == WME_AC_BK) ? 1 : \
 255         0)
 256
 257 #define TID_TO_WME_AC(_tid) (      \
 258         ((_tid) < 1) ? WME_AC_BE : \
 259         ((_tid) < 3) ? WME_AC_BK : \
 260         ((_tid) < 6) ? WME_AC_VI : \
 261         WME_AC_VO)
 262
 263 /*
 264  * WME Parameter Element
 265  */
 266 struct ieee80211_wme_param {
 267         uint8_t         param_id;
 268         uint8_t         param_len;
 269         uint8_t         param_oui[3];
 270         uint8_t         param_oui_type;
 271         uint8_t         param_oui_sybtype;
 272         uint8_t         param_version;
 273         uint8_t         param_qosInfo;
 274 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
 275         uint8_t         param_reserved;
 276         struct ieee80211_wme_acparams   params_acParams[WME_NUM_AC];
 277 } __packed;
 278
 279 /*
 280  * Management Notification Frame
 281  */
 282 struct ieee80211_mnf {
 283         uint8_t         mnf_category;
 284         uint8_t         mnf_action;
 285         uint8_t         mnf_dialog;
 286         uint8_t         mnf_status;
 287 } __packed;
 288 #define MNF_SETUP_REQ   0
 289 #define MNF_SETUP_RESP  1
 290 #define MNF_TEARDOWN    2
 291
 292 /*
 293  * Control frames.
 294  */
 295 struct ieee80211_frame_min {
 296         uint8_t         i_fc[2];
 297         uint8_t         i_dur[2];
 298         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 299         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 300         /* FCS */
 301 } __packed;
 302
 303 struct ieee80211_frame_rts {
 304         uint8_t         i_fc[2];
 305         uint8_t         i_dur[2];
 306         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 307         uint8_t         i_ta[IEEE80211_ADDR_LEN];
 308         /* FCS */
 309 } __packed;
 310
 311 struct ieee80211_frame_cts {
 312         uint8_t         i_fc[2];
 313         uint8_t         i_dur[2];
 314         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 315         /* FCS */
 316 } __packed;
 317
 318 struct ieee80211_frame_ack {
 319         uint8_t         i_fc[2];
 320         uint8_t         i_dur[2];
 321         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 322         /* FCS */
 323 } __packed;
 324
 325 struct ieee80211_frame_pspoll {
 326         uint8_t         i_fc[2];
 327         uint8_t         i_aid[2];
 328         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
 329         uint8_t         i_ta[IEEE80211_ADDR_LEN];
 330         /* FCS */
 331 } __packed;
 332
 333 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
 334         uint8_t         i_fc[2];
 335         uint8_t         i_dur[2];       /* should be zero */
 336         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 337         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
 338         /* FCS */
 339 } __packed;
 340
 341 /*
 342  * BEACON management packets
 343  *
 344  *      octet timestamp[8]
 345  *      octet beacon interval[2]
 346  *      octet capability information[2]
 347  *      information element
 348  *              octet elemid
 349  *              octet length
 350  *              octet information[length]
 351  */
 352
 353 typedef uint8_t *ieee80211_mgt_beacon_t;
 354
 355 #define IEEE80211_BEACON_INTERVAL(beacon) \
 356         ((beacon)[8] | ((beacon)[9] << 8))
 357 #define IEEE80211_BEACON_CAPABILITY(beacon) \
 358         ((beacon)[10] | ((beacon)[11] << 8))
 359
 360 #define IEEE80211_CAPINFO_ESS                   0x0001
 361 #define IEEE80211_CAPINFO_IBSS                  0x0002
 362 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
 363 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
 364 #define IEEE80211_CAPINFO_PRIVACY               0x0010
 365 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
 366 #define IEEE80211_CAPINFO_PBCC                  0x0040
 367 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
 368 /* bits 8-9 are reserved */
 369 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
 370 #define IEEE80211_CAPINFO_RSN                   0x0800
 371 /* bit 12 is reserved */
 372 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
 373 /* bits 14-15 are reserved */
 374
 375 /*
 376  * 802.11i/WPA information element (maximally sized).
 377  */
 378 struct ieee80211_ie_wpa {
 379         uint8_t         wpa_id;         /* IEEE80211_ELEMID_VENDOR */
 380         uint8_t         wpa_len;        /* length in bytes */
 381         uint8_t         wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
 382         uint8_t         wpa_type;       /* OUI type */
 383         uint16_t        wpa_version;    /* spec revision */
 384         uint32_t        wpa_mcipher[1]; /* multicast/group key cipher */
 385         uint16_t        wpa_uciphercnt; /* # pairwise key ciphers */
 386         uint32_t        wpa_uciphers[8];/* ciphers */
 387         uint16_t        wpa_authselcnt; /* authentication selector cnt*/
 388         uint32_t        wpa_authsels[8];/* selectors */
 389         uint16_t        wpa_caps;       /* 802.11i capabilities */
 390         uint16_t        wpa_pmkidcnt;   /* 802.11i pmkid count */
 391         uint16_t        wpa_pmkids[8];  /* 802.11i pmkids */
 392 } __packed;
 393
 394 /*
 395  * Management information element payloads.
 396  */
 397
 398 enum {
 399         IEEE80211_ELEMID_SSID           = 0,
 400         IEEE80211_ELEMID_RATES          = 1,
 401         IEEE80211_ELEMID_FHPARMS        = 2,
 402         IEEE80211_ELEMID_DSPARMS        = 3,
 403         IEEE80211_ELEMID_CFPARMS        = 4,
 404         IEEE80211_ELEMID_TIM            = 5,
 405         IEEE80211_ELEMID_IBSSPARMS      = 6,
 406         IEEE80211_ELEMID_COUNTRY        = 7,
 407         IEEE80211_ELEMID_CHALLENGE      = 16,
 408         /* 17-31 reserved for challenge text extension */
 409         IEEE80211_ELEMID_ERP            = 42,
 410         IEEE80211_ELEMID_RSN            = 48,
 411         IEEE80211_ELEMID_XRATES         = 50,
 412         IEEE80211_ELEMID_TPC            = 150,
 413         IEEE80211_ELEMID_CCKM           = 156,
 414         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
 415 };
 416
 417 struct ieee80211_tim_ie {
 418         uint8_t         tim_ie;                 /* IEEE80211_ELEMID_TIM */
 419         uint8_t         tim_len;
 420         uint8_t         tim_count;              /* DTIM count */
 421         uint8_t         tim_period;             /* DTIM period */
 422         uint8_t         tim_bitctl;             /* bitmap control */
 423         uint8_t         tim_bitmap[1];          /* variable-length bitmap */
 424 } __packed;
 425
 426 struct ieee80211_country_ie {
 427         uint8_t         ie;                     /* IEEE80211_ELEMID_COUNTRY */
 428         uint8_t         len;
 429         uint8_t         cc[3];                  /* ISO CC+(I)ndoor/(O)utdoor */
 430         struct {
 431                 uint8_t schan;                  /* starting channel */
 432                 uint8_t nchan;                  /* number channels */
 433                 uint8_t maxtxpwr;               /* tx power cap */
 434         } band[4] __packed;                     /* up to 4 sub bands */
 435 } __packed;
 436
 437 #define IEEE80211_CHALLENGE_LEN         128
 438
 439 #define IEEE80211_RATE_BASIC            0x80
 440 #define IEEE80211_RATE_VAL              0x7f
 441 #define IEEE80211_RS_RATE(rs, idx) \
 442         ((rs)->rs_rates[idx] & IEEE80211_RATE_VAL)
 443
 444 /* EPR information element flags */
 445 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
 446 #define IEEE80211_ERP_USE_PROTECTION    0x02
 447 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
 448
 449 /* Atheros private advanced capabilities info */
 450 #define ATHEROS_CAP_TURBO_PRIME         0x01
 451 #define ATHEROS_CAP_COMPRESSION         0x02
 452 #define ATHEROS_CAP_FAST_FRAME          0x04
 453 /* bits 3-6 reserved */
 454 #define ATHEROS_CAP_BOOST               0x80
 455
 456 #define ATH_OUI                 0x7f0300                /* Atheros OUI */
 457 #define ATH_OUI_TYPE            0x01
 458 #define ATH_OUI_VERSION         0x01
 459
 460 #define WPA_OUI                 0xf25000
 461 #define WPA_OUI_TYPE            0x01
 462 #define WPA_VERSION             1               /* current supported version */
 463
 464 #define WPA_CSE_NULL            0x00
 465 #define WPA_CSE_WEP40           0x01
 466 #define WPA_CSE_TKIP            0x02
 467 #define WPA_CSE_CCMP            0x04
 468 #define WPA_CSE_WEP104          0x05
 469
 470 #define WPA_ASE_NONE            0x00
 471 #define WPA_ASE_8021X_UNSPEC    0x01
 472 #define WPA_ASE_8021X_PSK       0x02
 473
 474 #define RSN_OUI                 0xac0f00
 475 #define RSN_VERSION             1               /* current supported version */
 476
 477 #define RSN_CSE_NULL            0x00
 478 #define RSN_CSE_WEP40           0x01
 479 #define RSN_CSE_TKIP            0x02
 480 #define RSN_CSE_WRAP            0x03
 481 #define RSN_CSE_CCMP            0x04
 482 #define RSN_CSE_WEP104          0x05
 483
 484 #define RSN_ASE_NONE            0x00
 485 #define RSN_ASE_8021X_UNSPEC    0x01
 486 #define RSN_ASE_8021X_PSK       0x02
 487
 488 #define RSN_CAP_PREAUTH         0x01
 489
 490 #define WME_OUI                 0xf25000
 491 #define WME_OUI_TYPE            0x02
 492 #define WME_INFO_OUI_SUBTYPE    0x00
 493 #define WME_PARAM_OUI_SUBTYPE   0x01
 494 #define WME_VERSION             1
 495
 496 /* WME stream classes */
 497 #define WME_AC_BE       0               /* best effort */
 498 #define WME_AC_BK       1               /* background */
 499 #define WME_AC_VI       2               /* video */
 500 #define WME_AC_VO       3               /* voice */
 501
 502 /*
 503  * AUTH management packets
 504  *
 505  *      octet algo[2]
 506  *      octet seq[2]
 507  *      octet status[2]
 508  *      octet chal.id
 509  *      octet chal.length
 510  *      octet chal.text[253]
 511  */
 512
 513 typedef uint8_t *ieee80211_mgt_auth_t;
 514
 515 #define IEEE80211_AUTH_ALGORITHM(auth) \
 516         ((auth)[0] | ((auth)[1] << 8))
 517 #define IEEE80211_AUTH_TRANSACTION(auth) \
 518         ((auth)[2] | ((auth)[3] << 8))
 519 #define IEEE80211_AUTH_STATUS(auth) \
 520         ((auth)[4] | ((auth)[5] << 8))
 521
 522 #define IEEE80211_AUTH_ALG_OPEN         0x0000
 523 #define IEEE80211_AUTH_ALG_SHARED       0x0001
 524 #define IEEE80211_AUTH_ALG_LEAP         0x0080
 525
 526 enum {
 527         IEEE80211_AUTH_OPEN_REQUEST             = 1,
 528         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
 529 };
 530
 531 enum {
 532         IEEE80211_AUTH_SHARED_REQUEST           = 1,
 533         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
 534         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
 535         IEEE80211_AUTH_SHARED_PASS              = 4,
 536 };
 537
 538 /*
 539  * Reason codes
 540  *
 541  * Unlisted codes are reserved
 542  */
 543
 544 enum {
 545         IEEE80211_REASON_UNSPECIFIED            = 1,
 546         IEEE80211_REASON_AUTH_EXPIRE            = 2,
 547         IEEE80211_REASON_AUTH_LEAVE             = 3,
 548         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
 549         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
 550         IEEE80211_REASON_NOT_AUTHED             = 6,
 551         IEEE80211_REASON_NOT_ASSOCED            = 7,
 552         IEEE80211_REASON_ASSOC_LEAVE            = 8,
 553         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
 554
 555         IEEE80211_REASON_RSN_REQUIRED           = 11,
 556         IEEE80211_REASON_RSN_INCONSISTENT       = 12,
 557         IEEE80211_REASON_IE_INVALID             = 13,
 558         IEEE80211_REASON_MIC_FAILURE            = 14,
 559
 560         IEEE80211_STATUS_SUCCESS                = 0,
 561         IEEE80211_STATUS_UNSPECIFIED            = 1,
 562         IEEE80211_STATUS_CAPINFO                = 10,
 563         IEEE80211_STATUS_NOT_ASSOCED            = 11,
 564         IEEE80211_STATUS_OTHER                  = 12,
 565         IEEE80211_STATUS_ALG                    = 13,
 566         IEEE80211_STATUS_SEQUENCE               = 14,
 567         IEEE80211_STATUS_CHALLENGE              = 15,
 568         IEEE80211_STATUS_TIMEOUT                = 16,
 569         IEEE80211_STATUS_TOOMANY                = 17,
 570         IEEE80211_STATUS_BASIC_RATE             = 18,
 571         IEEE80211_STATUS_SP_REQUIRED            = 19,
 572         IEEE80211_STATUS_PBCC_REQUIRED          = 20,
 573         IEEE80211_STATUS_CA_REQUIRED            = 21,
 574         IEEE80211_STATUS_TOO_MANY_STATIONS      = 22,
 575         IEEE80211_STATUS_RATES                  = 23,
 576         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,
 577         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,
 578 };
 579
 580 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
 581 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
 582 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
 583 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
 584 #define IEEE80211_WEP_NKID              4       /* number of key ids */
 585
 586 /*
 587  * 802.11i defines an extended IV for use with non-WEP ciphers.
 588  * When the EXTIV bit is set in the key id byte an additional
 589  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 590  * EXTIV bit is likewise set but the 8 bytes represent the
 591  * CCMP header rather than IV+extended-IV.
 592  */
 593 #define IEEE80211_WEP_EXTIV             0x20
 594 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
 595 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
 596
 597 #define IEEE80211_CRC_LEN               4
 598
 599 /*
 600  * Maximum acceptable MTU is:
 601  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
 602  *              QoS overhead - RSN/WPA overhead
 603  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
 604  * mtu is Ethernet-compatible; it's set by ether_ifattach.
 605  */
 606 #define IEEE80211_MTU_MAX               2290
 607 #define IEEE80211_MTU_MIN               32
 608
 609 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
 610     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
 611 #define IEEE80211_ACK_LEN \
 612         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
 613 #define IEEE80211_MIN_LEN \
 614         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
 615
 616 /*
 617  * The 802.11 spec says at most 2007 stations may be
 618  * associated at once.  For most AP's this is way more
 619  * than is feasible so we use a default of 128.  This
 620  * number may be overridden by the driver and/or by
 621  * user configuration.
 622  */
 623 #define IEEE80211_AID_MAX               2007
 624 #define IEEE80211_AID_DEF               128
 625
 626 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
 627
 628 /*
 629  * RTS frame length parameters.  The default is specified in
 630  * the 802.11 spec as 512; we treat it as implementation-dependent
 631  * so it's defined in ieee80211_var.h.  The max may be wrong
 632  * for jumbo frames.
 633  */
 634 #define IEEE80211_RTS_MIN               1
 635 #define IEEE80211_RTS_MAX               2346
 636
 637 /*
 638  * TX fragmentation parameters.  As above for RTS, we treat
 639  * default as implementation-dependent so define it elsewhere.
 640  */
 641 #define IEEE80211_FRAG_MIN              256
 642 #define IEEE80211_FRAG_MAX              2346
 643
 644 /*
 645  * Beacon interval (TU's).  Min+max come from WiFi requirements.
 646  * As above, we treat default as implementation-dependent so
 647  * define it elsewhere.
 648  */
 649 #define IEEE80211_BINTVAL_MAX   1000    /* max beacon interval (TU's) */
 650 #define IEEE80211_BINTVAL_MIN   25      /* min beacon interval (TU's) */
 651
 652 /*
 653  * DTIM period (beacons).  Min+max are not really defined
 654  * by the protocol but we want them publicly visible so
 655  * define them here.
 656  */
 657 #define IEEE80211_DTIM_MAX      15      /* max DTIM period */
 658 #define IEEE80211_DTIM_MIN      1       /* min DTIM period */
 659
 660 /*
 661  * Beacon miss threshold (beacons).  As for DTIM, we define
 662  * them here to be publicly visible.  Note the max may be
 663  * clamped depending on device capabilities.
 664  */
 665 #define IEEE80211_HWBMISS_MIN   1
 666 #define IEEE80211_HWBMISS_MAX   255
 667
 668 /*
 669  * Contention window (slots).
 670  */
 671 #define IEEE80211_CW_MAX        1023    /* aCWmax */
 672 #define IEEE80211_CW_MIN_0      31      /* DS/CCK aCWmin, ERP aCWmin(0) */
 673 #define IEEE80211_CW_MIN_1      15      /* OFDM aCWmin, ERP aCWmin(1) */
 674
 675 /*
 676  * SIFS (microseconds).
 677  */
 678 #define IEEE80211_DUR_SIFS      10      /* DS/CCK/ERP SIFS */
 679 #define IEEE80211_DUR_OFDM_SIFS 16      /* OFDM SIFS */
 680
 681 /*
 682  * Slot time (microseconds).
 683  */
 684 #define IEEE80211_DUR_SLOT      20      /* DS/CCK slottime, ERP long slottime */
 685 #define IEEE80211_DUR_SHSLOT    9       /* ERP short slottime */
 686 #define IEEE80211_DUR_OFDM_SLOT 9       /* OFDM slottime */
 687
 688 /*
 689  * DIFS (microseconds).
 690  */
 691 #define IEEE80211_DUR_DIFS(sifs, slot)  ((sifs) + 2 * (slot))
 692
 693 #define IEEE80211_MGT_SUBTYPE_NAMES {                   \
 694         "assoc-req",            "assoc-resp",           \
 695         "reassoc-req",          "reassoc-resp",         \
 696         "probe-req",            "probe-resp",           \
 697         "reserved#6",           "reserved#7",           \
 698         "beacon",               "atim",                 \
 699         "disassoc",             "auth",                 \
 700         "deauth",               "reserved#13",          \
 701         "reserved#14",          "reserved#15"           \
 702 }
 703
 704 #define IEEE80211_CTL_SUBTYPE_NAMES {                   \
 705         "reserved#0",           "reserved#1",           \
 706         "reserved#2",           "reserved#3",           \
 707         "reserved#3",           "reserved#5",           \
 708         "reserved#6",           "reserved#7",           \
 709         "reserved#8",           "reserved#9",           \
 710         "ps-poll",              "rts",                  \
 711         "cts",                  "ack",                  \
 712         "cf-end",               "cf-end-ack"            \
 713 }
 714
 715 #define IEEE80211_DATA_SUBTYPE_NAMES {                  \
 716         "data",                 "data-cf-ack",          \
 717         "data-cf-poll",         "data-cf-ack-poll",     \
 718         "null",                 "cf-ack",               \
 719         "cf-poll",              "cf-ack-poll",          \
 720         "qos-data",             "qos-data-cf-ack",      \
 721         "qos-data-cf-poll",     "qos-data-cf-ack-poll", \
 722         "qos",                  "reserved#13",          \
 723         "qos-cf-poll",          "qos-cf-ack-poll"       \
 724 }
 725
 726 #define IEEE80211_TYPE_NAMES    { "mgt", "ctl", "data", "reserved#4" }
 727
 728 #endif /* _NET80211_IEEE80211_H_ */