root/net80211/ieee80211.h

INCLUDED FROM

    1 /*      $OpenBSD: ieee80211.h,v 1.33 2007/08/01 12:23:26 damien Exp $   */
    2 /*      $NetBSD: ieee80211.h,v 1.6 2004/04/30 23:51:53 dyoung Exp $     */
    4 /*-
    5  * Copyright (c) 2001 Atsushi Onoe
    6  * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. The name of the author may not be used to endorse or promote products
   18  *    derived from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   30  *
   31  * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.5 2004/04/05 17:47:40 sam Exp $
   32  */
   33 #ifndef _NET80211_IEEE80211_H_
   34 #define _NET80211_IEEE80211_H_
   36 /*
   37  * 802.11 protocol definitions.
   38  */
   40 #define IEEE80211_ADDR_LEN      6               /* size of 802.11 address */
   41 /* is 802.11 address multicast/broadcast? */
   42 #define IEEE80211_IS_MULTICAST(_a)      (*(_a) & 0x01)
   44 /* IEEE 802.11 PLCP header */
   45 struct ieee80211_plcp_hdr {
u_int16_t       i_sfd;
u_int8_t        i_signal;
u_int8_t        i_service;
u_int16_t       i_length;
u_int16_t       i_crc;
   51 } __packed;
   53 #define IEEE80211_PLCP_SFD      0xF3A0
   54 #define IEEE80211_PLCP_SERVICE  0x00
   55 #define IEEE80211_PLCP_SERVICE_PBCC  0x08       /* PBCC encoded */
   56 #define IEEE80211_PLCP_SERVICE_LENEXT  0x80     /* length extension bit */
   58 /*
   59  * generic definitions for IEEE 802.11 frames
   60  */
   61 struct ieee80211_frame {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
   68 } __packed;
   70 struct ieee80211_qosframe {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
u_int8_t        i_qos[2];
   78 } __packed;
   80 /* 802.11n/D2.02 */
   81 struct ieee80211_htframe {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
u_int8_t        i_qos[2];
u_int8_t        i_ht[4];
   90 } __packed;
   92 struct ieee80211_frame_addr4 {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
  100 } __packed;
  102 struct ieee80211_qosframe_addr4 {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
u_int8_t        i_qos[2];
  111 } __packed;
  113 /* 802.11n/D2.02 */
  114 struct ieee80211_htframe_addr4 {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
u_int8_t        i_seq[2];
u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
u_int8_t        i_qos[2];
u_int8_t        i_ht[4];
  124 } __packed;
  126 /*
  127  * Management Notification Frame
  128  */
  129 struct ieee80211_mnf {
u_int8_t        mnf_category;
u_int8_t        mnf_action;
u_int8_t        mnf_dialog;
u_int8_t        mnf_status;
  134 } __packed;
  135 #define MNF_SETUP_REQ   0
  136 #define MNF_SETUP_RESP  1
  137 #define MNF_TEARDOWN    2
  140 #define IEEE80211_FC0_VERSION_MASK              0x03
  141 #define IEEE80211_FC0_VERSION_SHIFT             0
  142 #define IEEE80211_FC0_VERSION_0                 0x00
  143 #define IEEE80211_FC0_TYPE_MASK                 0x0c
  144 #define IEEE80211_FC0_TYPE_SHIFT                2
  145 #define IEEE80211_FC0_TYPE_MGT                  0x00
  146 #define IEEE80211_FC0_TYPE_CTL                  0x04
  147 #define IEEE80211_FC0_TYPE_DATA                 0x08
  149 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
  150 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
  151 /* for TYPE_MGT */
  152 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
  153 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
  154 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
  155 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
  156 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
  157 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
  158 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
  159 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
  160 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
  161 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
  162 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
  163 #define IEEE80211_FC0_SUBTYPE_ACTION            0xd0
  164 #define IEEE80211_FC0_SUBTYPE_ACTION_NOACK      0xe0    /* 802.11n/D2.00 */
  165 /* for TYPE_CTL */
  166 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
  167 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
  168 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
  169 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
  170 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
  171 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
  172 /* for TYPE_DATA (bit combination) */
  173 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
  174 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
  175 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
  176 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
  177 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
  178 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
  179 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
  180 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
  181 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
  183 #define IEEE80211_FC1_DIR_MASK                  0x03
  184 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
  185 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
  186 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
  187 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
  189 #define IEEE80211_FC1_MORE_FRAG                 0x04
  190 #define IEEE80211_FC1_RETRY                     0x08
  191 #define IEEE80211_FC1_PWR_MGT                   0x10
  192 #define IEEE80211_FC1_MORE_DATA                 0x20
  193 #define IEEE80211_FC1_PROTECTED                 0x40
  194 #define IEEE80211_FC1_WEP                       0x40    /* pre-RSNA compat */
  195 #define IEEE80211_FC1_ORDER                     0x80
  197 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  198 #define IEEE80211_SEQ_FRAG_SHIFT                0
  199 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  200 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  202 #define IEEE80211_NWID_LEN                      32
  204 #define IEEE80211_QOS_TXOP                      0x00ff
  205 /* bit 8 is reserved */
  206 #define IEEE80211_QOS_ACKPOLICY                 0x0600
  207 #define IEEE80211_QOS_ESOP                      0x0800
  208 #define IEEE80211_QOS_TID                       0xf000
  210 /*
  211  * Control frames.
  212  */
  213 struct ieee80211_frame_min {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  218         /* FCS */
  219 } __packed;
  221 struct ieee80211_frame_rts {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_ra[IEEE80211_ADDR_LEN];
u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  226         /* FCS */
  227 } __packed;
  229 struct ieee80211_frame_cts {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  233         /* FCS */
  234 } __packed;
  236 struct ieee80211_frame_ack {
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];
u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  240         /* FCS */
  241 } __packed;
  243 struct ieee80211_frame_pspoll {
u_int8_t        i_fc[2];
u_int8_t        i_aid[2];
u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  248         /* FCS */
  249 } __packed;
  251 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
u_int8_t        i_fc[2];
u_int8_t        i_dur[2];       /* should be zero */
u_int8_t        i_ra[IEEE80211_ADDR_LEN];
u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  256         /* FCS */
  257 } __packed;
  259 #define IEEE80211_CAPINFO_ESS                   0x0001
  260 #define IEEE80211_CAPINFO_IBSS                  0x0002
  261 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  262 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  263 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  264 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  265 #define IEEE80211_CAPINFO_PBCC                  0x0040
  266 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  267 #define IEEE80211_CAPINFO_SPECTRUM_MGMT         0x0100
  268 #define IEEE80211_CAPINFO_QOS                   0x0200
  269 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  270 #define IEEE80211_CAPINFO_APSD                  0x0800
  271 /* bit 12 is reserved */
  272 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  273 #define IEEE80211_CAPINFO_DELAYED_B_ACK         0x4000
  274 #define IEEE80211_CAPINFO_IMMEDIATE_B_ACK       0x8000
  275 #define IEEE80211_CAPINFO_BITS                                  \
  276         "\10\01ESS\02IBSS\03CF_POLLABLE\04CF_POLLREQ"           \
  277         "\05PRIVACY\06SHORT_PREAMBLE\07PBCC\10CHNL_AGILITY"     \
  278         "\11SPECTRUM_MGMT\12QOS\13SHORT_SLOTTIME\14APSD"        \
  279         "\16DSSSOFDM\17DELAYED_B_ACK\20IMMEDIATE_B_ACK"
  281 /* 
  282  * Channel attributes
  283  */
  284 #define IEEE80211_CHAN_TURBO    0x0010  /* Turbo channel */
  285 #define IEEE80211_CHAN_CCK      0x0020  /* CCK channel */
  286 #define IEEE80211_CHAN_OFDM     0x0040  /* OFDM channel */
  287 #define IEEE80211_CHAN_2GHZ     0x0080  /* 2 GHz spectrum channel. */
  288 #define IEEE80211_CHAN_5GHZ     0x0100  /* 5 GHz spectrum channel */
  289 #define IEEE80211_CHAN_PASSIVE  0x0200  /* Only passive scan allowed */
  290 #define IEEE80211_CHAN_DYN      0x0400  /* Dynamic CCK-OFDM channel */
  291 #define IEEE80211_CHAN_GFSK     0x0800  /* GFSK channel (FHSS PHY) */
  292 #define IEEE80211_CHAN_XR       0x1000  /* Extended range OFDM channel */
  294 /*
  295  * Useful combinations of channel characteristics.
  296  */
  297 #define IEEE80211_CHAN_FHSS \
  298         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
  299 #define IEEE80211_CHAN_A \
  300         (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
  301 #define IEEE80211_CHAN_B \
  302         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
  303 #define IEEE80211_CHAN_PUREG \
  304         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
  305 #define IEEE80211_CHAN_G \
  306         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
  307 #define IEEE80211_CHAN_T \
  308         (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  309 #define IEEE80211_CHAN_TG \
  310         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  312 /*
  313  * Management information element payloads
  314  */
  315 union ieee80211_information {
  316         char    ssid[IEEE80211_NWID_LEN+1];
  317         struct rates {
u_int8_t        *p;
  319         } rates;
  320         struct fh {
u_int16_t       dwell;
u_int8_t        set;
u_int8_t        pattern;
u_int8_t        index;
  325         } fh;
  326         struct ds {
u_int8_t        channel;
  328         } ds;
  329         struct cf {
u_int8_t        count;
u_int8_t        period;
u_int8_t        maxdur[2];
u_int8_t        dur[2];
  334         } cf;
  335         struct tim {
u_int8_t        count;
u_int8_t        period;
u_int8_t        bitctl;
  339                 /* u_int8_t     pvt[251]; The driver needs to use this. */
  340         } tim;
  341         struct ibss {
u_int16_t       atim;
  343         } ibss;
  344         struct challenge {
u_int8_t        *p;
u_int8_t        len;
  347         } challenge;
  348         struct erp {
u_int8_t        flags;
  350         } erp;
  351         struct country {
u_int8_t        cc[3];          /* ISO CC+(I)ndoor/(O)utdoor */
  353                 struct {
u_int8_t schan;         /* starting channel */
u_int8_t nchan;         /* number channels */
u_int8_t maxtxpwr;
  357                 } band[4];                      /* up to 4 sub bands */
  358         } country;
  359         struct ath {
u_int8_t        flags;
  361         } ath;
  362 };
  364 enum {
IEEE80211_ELEMID_SSID                   = 0,
IEEE80211_ELEMID_RATES                  = 1,
IEEE80211_ELEMID_FHPARMS                = 2,
IEEE80211_ELEMID_DSPARMS                = 3,
IEEE80211_ELEMID_CFPARMS                = 4,
IEEE80211_ELEMID_TIM                    = 5,
IEEE80211_ELEMID_IBSSPARMS              = 6,
IEEE80211_ELEMID_COUNTRY                = 7,
IEEE80211_ELEMID_QBSS_LOAD              = 11,
IEEE80211_ELEMID_EDCAPARMS              = 12,
IEEE80211_ELEMID_CHALLENGE              = 16,
  376         /* 17-31 reserved for challenge text extension */
IEEE80211_ELEMID_ERP                    = 42,
IEEE80211_ELEMID_QOS_CAP                = 46,
IEEE80211_ELEMID_RSN                    = 48,
IEEE80211_ELEMID_XRATES                 = 50,
IEEE80211_ELEMID_TPC                    = 150,
IEEE80211_ELEMID_CCKM                   = 156,
IEEE80211_ELEMID_VENDOR                 = 221   /* vendor private */
  384 };
  386 #define IEEE80211_CHALLENGE_LEN                 128
  388 #define IEEE80211_RATE_BASIC                    0x80
  389 #define IEEE80211_RATE_VAL                      0x7f
  390 #define IEEE80211_RATE_SIZE                     8       /* 802.11 standard */
  391 #define IEEE80211_RATE_MAXSIZE                  15      /* max rates we'll handle */
  393 /* ERP information element flags */
  394 #define IEEE80211_ERP_NON_ERP_PRESENT           0x01
  395 #define IEEE80211_ERP_USE_PROTECTION            0x02
  396 #define IEEE80211_ERP_BARKER_MODE               0x04
  398 /*
  399  * 802.11e EDCA Access Categories.
  400  */
  401 enum ieee80211_edca_ac {
EDCA_AC_BK  = 1,        /* Background */
EDCA_AC_BE  = 0,        /* Best Effort */
EDCA_AC_VI  = 2,        /* Video */
EDCA_AC_VO  = 3         /* Voice */
  406 };
  407 #define EDCA_NUM_AC     4
  409 /* number of TID values (traffic identifier) */
  410 #define IEEE80211_NUM_TID       16
  412 /* Atheros private advanced capabilities info */
  413 #define ATHEROS_CAP_TURBO_PRIME                 0x01
  414 #define ATHEROS_CAP_COMPRESSION                 0x02
  415 #define ATHEROS_CAP_FAST_FRAME                  0x04
  416 /* bits 3-6 reserved */
  417 #define ATHEROS_CAP_BOOST                       0x80
  419 /* Organizationally Unique Identifiers */
  420 /* See http://standards.ieee.org/regauth/oui/oui.txt for a list */
  421 #define ATHEROS_OUI     ((const u_int8_t[]){ 0x00, 0x03, 0x7f })
  422 #define BROADCOM_OUI    ((const u_int8_t[]){ 0c00, 0x90, 0x4c })
  423 #define IEEE80211_OUI   ((const u_int8_t[]){ 0x00, 0x0f, 0xac })
  424 #define MICROSOFT_OUI   ((const u_int8_t[]){ 0x00, 0x50, 0xf2 })
  426 #define IEEE80211_AUTH_ALGORITHM(auth) \
  427         ((auth)[0] | ((auth)[1] << 8))
  428 #define IEEE80211_AUTH_TRANSACTION(auth) \
  429         ((auth)[2] | ((auth)[3] << 8))
  430 #define IEEE80211_AUTH_STATUS(auth) \
  431         ((auth)[4] | ((auth)[5] << 8))
  433 #define IEEE80211_AUTH_ALG_OPEN                 0x0000
  434 #define IEEE80211_AUTH_ALG_SHARED               0x0001
  435 #define IEEE80211_AUTH_ALG_LEAP                 0x0080
  437 enum {
IEEE80211_AUTH_OPEN_REQUEST             = 1,
IEEE80211_AUTH_OPEN_RESPONSE            = 2
  440 };
  442 enum {
IEEE80211_AUTH_SHARED_REQUEST           = 1,
IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
IEEE80211_AUTH_SHARED_RESPONSE          = 3,
IEEE80211_AUTH_SHARED_PASS              = 4
  447 };
  449 /*
  450  * Reason codes (see Table 22).
  451  */
  452 enum {
IEEE80211_REASON_UNSPECIFIED            = 1,
IEEE80211_REASON_AUTH_EXPIRE            = 2,
IEEE80211_REASON_AUTH_LEAVE             = 3,
IEEE80211_REASON_ASSOC_EXPIRE           = 4,
IEEE80211_REASON_ASSOC_TOOMANY          = 5,
IEEE80211_REASON_NOT_AUTHED             = 6,
IEEE80211_REASON_NOT_ASSOCED            = 7,
IEEE80211_REASON_ASSOC_LEAVE            = 8,
IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
  463         /* XXX the following two reason codes are not correct */
IEEE80211_REASON_RSN_REQUIRED           = 11,
IEEE80211_REASON_RSN_INCONSISTENT       = 12,
IEEE80211_REASON_IE_INVALID             = 13,
IEEE80211_REASON_MIC_FAILURE            = 14,
IEEE80211_REASON_BAD_GROUP_CIPHER       = 18,
IEEE80211_REASON_BAD_PAIRWISE_CIPHER    = 19,
IEEE80211_REASON_BAD_AKMP               = 20,
IEEE80211_REASON_RSN_IE_VER_UNSUP       = 21,
IEEE80211_REASON_RSN_IE_BAD_CAP         = 22,
IEEE80211_REASON_CIPHER_REJ             = 24
  477 };
  479 /*
  480  * Status codes (see Table 23).
  481  */
  482 enum {
IEEE80211_STATUS_SUCCESS                = 0,
IEEE80211_STATUS_UNSPECIFIED            = 1,
IEEE80211_STATUS_CAPINFO                = 10,
IEEE80211_STATUS_NOT_ASSOCED            = 11,
IEEE80211_STATUS_OTHER                  = 12,
IEEE80211_STATUS_ALG                    = 13,
IEEE80211_STATUS_SEQUENCE               = 14,
IEEE80211_STATUS_CHALLENGE              = 15,
IEEE80211_STATUS_TIMEOUT                = 16,
IEEE80211_STATUS_TOOMANY                = 17,
IEEE80211_STATUS_BASIC_RATE             = 18,
IEEE80211_STATUS_SP_REQUIRED            = 19,
IEEE80211_STATUS_PBCC_REQUIRED          = 20,
IEEE80211_STATUS_CA_REQUIRED            = 21,
IEEE80211_STATUS_TOO_MANY_STATIONS      = 22,
IEEE80211_STATUS_RATES                  = 23,
IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,
IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26
  501 };
  503 #define IEEE80211_WEP_KEYLEN                    5       /* 40bit */
  504 #define IEEE80211_WEP_NKID                      4       /* number of key ids */
  506 /* WEP header constants */
  507 #define IEEE80211_WEP_IVLEN                     3       /* 24bit */
  508 #define IEEE80211_WEP_KIDLEN                    1       /* 1 octet */
  509 #define IEEE80211_WEP_CRCLEN                    4       /* CRC-32 */
  510 #define IEEE80211_CRC_LEN                       4
  511 #define IEEE80211_WEP_TOTLEN            (IEEE80211_WEP_IVLEN + \
IEEE80211_WEP_KIDLEN + \
IEEE80211_WEP_CRCLEN)
  515 /*
  516  * 802.11i defines an extended IV for use with non-WEP ciphers.
  517  * When the EXTIV bit is set in the key id byte an additional
  518  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
  519  * EXTIV bit is likewise set but the 8 bytes represent the
  520  * CCMP header rather than IV+extended-IV.
  521  */
  522 #define IEEE80211_WEP_EXTIV             0x20
  523 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
  524 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
  526 /*
  527  * Maximum acceptable MTU is:
  528  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
  529  *              QoS overhead - RSN/WPA overhead
  530  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
  531  * mtu is Ethernet-compatible; it's set by ether_ifattach.
  532  */
  533 #define IEEE80211_MTU_MAX                       2290
  534 #define IEEE80211_MTU_MIN                       32
  536 #define IEEE80211_MAX_LEN                       (2300 + IEEE80211_CRC_LEN + \
  537     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
  538 #define IEEE80211_ACK_LEN \
  539         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
  540 #define IEEE80211_MIN_LEN \
  541         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
  543 /*
  544  * The 802.11 spec says at most 2007 stations may be
  545  * associated at once.  For most AP's this is way more
  546  * than is feasible so we use a default of 1800. This
  547  * number may be overridden by the driver and/or by
  548  * user configuration.
  549  */
  550 #define IEEE80211_AID_MAX               2007
  551 #define IEEE80211_AID_DEF               1800
  553 #define IEEE80211_AID(b)                ((b) &~ 0xc000)
  554 #define IEEE80211_AID_SET(b, w) \
  555         ((w)[IEEE80211_AID(b) / 32] |= (1 << (IEEE80211_AID(b) % 32)))
  556 #define IEEE80211_AID_CLR(b, w) \
  557         ((w)[IEEE80211_AID(b) / 32] &= ~(1 << (IEEE80211_AID(b) % 32)))
  558 #define IEEE80211_AID_ISSET(b, w) \
  559         ((w)[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32)))
  561 /*
  562  * RTS frame length parameters.  The default is specified in
  563  * the 802.11 spec.  The max may be wrong for jumbo frames.
  564  */
  565 #define IEEE80211_RTS_DEFAULT                   512
  566 #define IEEE80211_RTS_MIN                       1
  567 #define IEEE80211_RTS_MAX                       IEEE80211_MAX_LEN
  569 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
  570 #define IEEE80211_DUR_TU                1024
  572 /* IEEE 802.11b durations for DSSS PHY in microseconds */
  573 #define IEEE80211_DUR_DS_LONG_PREAMBLE  144
  574 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
  575 #define IEEE80211_DUR_DS_PREAMBLE_DIFFERENCE    \
  576     (IEEE80211_DUR_DS_LONG_PREAMBLE - IEEE80211_DUR_DS_SHORT_PREAMBLE)
  577 #define IEEE80211_DUR_DS_FAST_PLCPHDR   24
  578 #define IEEE80211_DUR_DS_SLOW_PLCPHDR   48
  579 #define IEEE80211_DUR_DS_PLCPHDR_DIFFERENCE     \
  580     (IEEE80211_DUR_DS_SLOW_PLCPHDR - IEEE80211_DUR_DS_FAST_PLCPHDR)
  581 #define IEEE80211_DUR_DS_SLOW_ACK       112
  582 #define IEEE80211_DUR_DS_FAST_ACK       56
  583 #define IEEE80211_DUR_DS_SLOW_CTS       112
  584 #define IEEE80211_DUR_DS_FAST_CTS       56
  585 #define IEEE80211_DUR_DS_SLOT           20
  586 #define IEEE80211_DUR_DS_SIFS           10
  587 #define IEEE80211_DUR_DS_PIFS   (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
  588 #define IEEE80211_DUR_DS_DIFS   (IEEE80211_DUR_DS_SIFS + \
  589                                  2 * IEEE80211_DUR_DS_SLOT)
  590 #define IEEE80211_DUR_DS_EIFS   (IEEE80211_DUR_DS_SIFS + \
IEEE80211_DUR_DS_SLOW_ACK + \
IEEE80211_DUR_DS_LONG_PREAMBLE + \
IEEE80211_DUR_DS_SLOW_PLCPHDR + \
IEEE80211_DUR_DIFS)
  596 enum {
IEEE80211_AUTH_NONE     = 0,
IEEE80211_AUTH_OPEN     = 1,            /* open */
IEEE80211_AUTH_SHARED   = 2,            /* shared-key */
IEEE80211_AUTH_8021X    = 3,            /* 802.1x */
IEEE80211_AUTH_AUTO     = 4,            /* auto-select/accept */
IEEE80211_AUTH_WPA      = 5,            /* WPA w/ 802.1x */
IEEE80211_AUTH_WPA_PSK  = 6,            /* WPA w/ preshared key */
IEEE80211_AUTH_WPA2     = 7,            /* WPA2 w/ 802.1x */
IEEE80211_AUTH_WPA2_PSK = 8             /* WPA2 w/ preshared key */
  606 };
  608 /*
  609  * The RSNA key descriptor used by IEEE 802.11 does not use the IEEE 802.1X
  610  * key descriptor.  Instead, it uses the key descriptor described in 8.5.2.
  611  */
  612 #define EAPOL_VERSION   1
  614 #define EAPOL_KEY_NONCE_LEN     32
  615 #define EAPOL_KEY_IV_LEN        16
  616 #define EAPOL_KEY_MIC_LEN       16
  618 struct ieee80211_eapol_key {
u_int8_t        version;
u_int8_t        type;
  621 /* IEEE Std 802.1X-2004, 7.5.4 (only type EAPOL-Key is used here) */
  622 #define EAP_PACKET      0
  623 #define EAPOL_START     1
  624 #define EAPOL_LOGOFF    2
  625 #define EAPOL_KEY       3
  626 #define EAPOL_ASF_ALERT 4
u_int8_t        len[2];
u_int8_t        desc;
  630 /* IEEE Std 802.1X-2004, 7.6.1 */
  631 #define EAPOL_KEY_DESC_RC4                1     /* deprecated */
  632 #define EAPOL_KEY_DESC_IEEE80211          2
  633 #define EAPOL_KEY_DESC_WPA1             254     /* non-standard WPA1 */
u_int8_t        info[2];
  636 #define EAPOL_KEY_VERSION_MASK  0x7
  637 #define EAPOL_KEY_DESC_V1       1
  638 #define EAPOL_KEY_DESC_V2       2
  639 #define EAPOL_KEY_PAIRWISE      (1 <<  3)
  640 #define EAPOL_KEY_INSTALL       (1 <<  6)       /* I */
  641 #define EAPOL_KEY_KEYACK        (1 <<  7)       /* A */
  642 #define EAPOL_KEY_KEYMIC        (1 <<  8)       /* M */
  643 #define EAPOL_KEY_SECURE        (1 <<  9)       /* S */
  644 #define EAPOL_KEY_ERROR         (1 << 10)
  645 #define EAPOL_KEY_REQUEST       (1 << 11)
  646 #define EAPOL_KEY_ENCRYPTED     (1 << 12)
  647 #define EAPOL_KEY_SMK           (1 << 13)
  648 /* WPA1 compatibility */
  649 #define EAPOL_KEY_WPA_KID_MASK  0x3
  650 #define EAPOL_KEY_WPA_KID_SHIFT 4
  651 #define EAPOL_KEY_WPA_TX        EAPOL_KEY_INSTALL
u_int8_t        keylen[2];
u_int8_t        replaycnt[8];
u_int8_t        nonce[EAPOL_KEY_NONCE_LEN];
u_int8_t        iv[EAPOL_KEY_IV_LEN];
u_int8_t        rsc[8];
u_int8_t        reserved[8];
u_int8_t        mic[EAPOL_KEY_MIC_LEN];
u_int8_t        paylen[2];
  661 } __packed;
  663 /* Pairwise Transient Key (see 8.5.1.2) */
  664 struct ieee80211_ptk {
u_int8_t        kck[16];        /* Key Confirmation Key */
u_int8_t        kek[16];        /* Key Encryption Key */
u_int8_t        tk[32];         /* Temporal Key */
  668 } __packed;
  670 #define IEEE80211_PMKID_LEN     16
  671 #define IEEE80211_SMKID_LEN     16
  673 /*
  674  * Key Data Encapsulation (see Table 62).
  675  */
  676 enum {
IEEE80211_KDE_GTK       = 1,
IEEE80211_KDE_MACADDR   = 3,
IEEE80211_KDE_PMKID     = 4,
IEEE80211_KDE_SMK       = 5,
IEEE80211_KDE_NONCE     = 6,
IEEE80211_KDE_LIFETIME  = 7,
IEEE80211_KDE_ERROR     = 8
  684 };
  686 #endif /* _NET80211_IEEE80211_H_ */