The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211.h

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    1 /*      $NetBSD: ieee80211.h,v 1.12 2005/02/26 22:45:09 perry Exp $     */
    2 /*-
    3  * Copyright (c) 2001 Atsushi Onoe
    4  * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. The name of the author may not be used to endorse or promote products
   16  *    derived from this software without specific prior written permission.
   17  *
   18  * Alternatively, this software may be distributed under the terms of the
   19  * GNU General Public License ("GPL") version 2 as published by the Free
   20  * Software Foundation.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   32  *
   33  * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.5 2004/04/05 17:47:40 sam 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 /* is 802.11 address multicast/broadcast? */
   44 #define IEEE80211_IS_MULTICAST(_a)      (*(_a) & 0x01)
   45 
   46 /* IEEE 802.11 PLCP header */
   47 struct ieee80211_plcp_hdr {
   48         u_int16_t       i_sfd;
   49         u_int8_t        i_signal;
   50         u_int8_t        i_service;
   51         u_int16_t       i_length;
   52         u_int16_t       i_crc;
   53 } __attribute__((__packed__));
   54 
   55 #define IEEE80211_PLCP_SFD      0xF3A0
   56 
   57 /*
   58  * generic definitions for IEEE 802.11 frames
   59  */
   60 struct ieee80211_frame {
   61         u_int8_t        i_fc[2];
   62         u_int8_t        i_dur[2];
   63         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   64         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   65         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   66         u_int8_t        i_seq[2];
   67         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   68         /* see below */
   69 } __attribute__((__packed__));
   70 
   71 struct ieee80211_qosframe {
   72         u_int8_t        i_fc[2];
   73         u_int8_t        i_dur[2];
   74         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   75         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   76         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   77         u_int8_t        i_seq[2];
   78         u_int8_t        i_qos[2];
   79         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   80         /* see below */
   81 } __attribute__((__packed__));
   82 
   83 struct ieee80211_qoscntl {
   84         u_int8_t        i_qos[2];
   85 };
   86 
   87 struct ieee80211_frame_addr4 {
   88         u_int8_t        i_fc[2];
   89         u_int8_t        i_dur[2];
   90         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   91         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   92         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   93         u_int8_t        i_seq[2];
   94         u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
   95 } __attribute__((__packed__));
   96 
   97 
   98 struct ieee80211_qosframe_addr4 {
   99         u_int8_t        i_fc[2];
  100         u_int8_t        i_dur[2];
  101         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
  102         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  103         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
  104         u_int8_t        i_seq[2];
  105         u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
  106         u_int8_t        i_qos[2];
  107 } __attribute__((__packed__));
  108 
  109 #define IEEE80211_FC0_VERSION_MASK              0x03
  110 #define IEEE80211_FC0_VERSION_SHIFT             0
  111 #define IEEE80211_FC0_VERSION_0                 0x00
  112 #define IEEE80211_FC0_TYPE_MASK                 0x0c
  113 #define IEEE80211_FC0_TYPE_SHIFT                2
  114 #define IEEE80211_FC0_TYPE_MGT                  0x00
  115 #define IEEE80211_FC0_TYPE_CTL                  0x04
  116 #define IEEE80211_FC0_TYPE_DATA                 0x08
  117 
  118 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
  119 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
  120 /* for TYPE_MGT */
  121 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
  122 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
  123 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
  124 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
  125 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
  126 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
  127 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
  128 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
  129 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
  130 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
  131 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
  132 /* for TYPE_CTL */
  133 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
  134 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
  135 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
  136 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
  137 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
  138 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
  139 /* for TYPE_DATA (bit combination) */
  140 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
  141 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
  142 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
  143 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
  144 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
  145 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
  146 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
  147 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
  148 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
  149 
  150 #define IEEE80211_FC1_DIR_MASK                  0x03
  151 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
  152 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
  153 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
  154 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
  155 
  156 #define IEEE80211_FC1_MORE_FRAG                 0x04
  157 #define IEEE80211_FC1_RETRY                     0x08
  158 #define IEEE80211_FC1_PWR_MGT                   0x10
  159 #define IEEE80211_FC1_MORE_DATA                 0x20
  160 #define IEEE80211_FC1_WEP                       0x40
  161 #define IEEE80211_FC1_ORDER                     0x80
  162 
  163 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  164 #define IEEE80211_SEQ_FRAG_SHIFT                0
  165 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  166 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  167 
  168 #define IEEE80211_NWID_LEN                      32
  169 
  170 #define IEEE80211_QOS_TXOP                      0x00ff
  171 /* bit 8 is reserved */
  172 #define IEEE80211_QOS_ACKPOLICY                 0x0600
  173 #define IEEE80211_QOS_ESOP                      0x0800
  174 #define IEEE80211_QOS_TID                       0xf000
  175 
  176 /*
  177  * WME/802.11e information element.
  178  */
  179 struct ieee80211_ie_wme {
  180         u_int8_t        wme_id;         /* IEEE80211_ELEMID_VENDOR */
  181         u_int8_t        wme_len;        /* length in bytes */
  182         u_int8_t        wme_oui[3];     /* 0x00, 0x50, 0xf2 */
  183         u_int8_t        wme_type;       /* OUI type */
  184         u_int8_t        wme_subtype;    /* OUI subtype */
  185         u_int8_t        wme_version;    /* spec revision */
  186         u_int8_t        wme_info;       /* AC info */
  187 } __attribute__((__packed__));
  188 
  189 /*
  190  * WME/802.11e Tspec Element
  191  */
  192 struct ieee80211_wme_tspec {
  193         u_int8_t        ts_id;
  194         u_int8_t        ts_len;
  195         u_int8_t        ts_oui[3];
  196         u_int8_t        ts_oui_type;
  197         u_int8_t        ts_oui_subtype;
  198         u_int8_t        ts_version;
  199         u_int8_t        ts_tsinfo[3];
  200         u_int8_t        ts_nom_msdu[2];
  201         u_int8_t        ts_max_msdu[2];
  202         u_int8_t        ts_min_svc[4];
  203         u_int8_t        ts_max_svc[4];
  204         u_int8_t        ts_inactv_intv[4];
  205         u_int8_t        ts_susp_intv[4];
  206         u_int8_t        ts_start_svc[4];
  207         u_int8_t        ts_min_rate[4];
  208         u_int8_t        ts_mean_rate[4];
  209         u_int8_t        ts_max_burst[4];
  210         u_int8_t        ts_min_phy[4];
  211         u_int8_t        ts_peak_rate[4];
  212         u_int8_t        ts_delay[4];
  213         u_int8_t        ts_surplus[2];
  214         u_int8_t        ts_medium_time[2];
  215 } __attribute__((__packed__));
  216 
  217 /*
  218  * Management Notification Frame
  219  */
  220 struct ieee80211_mnf {
  221         u_int8_t        mnf_category;
  222         u_int8_t        mnf_action;
  223         u_int8_t        mnf_dialog;
  224         u_int8_t        mnf_status;
  225 } __attribute__((__packed__));
  226 #define MNF_SETUP_REQ   0
  227 #define MNF_SETUP_RESP  1
  228 #define MNF_TEARDOWN    2
  229 
  230 /*
  231  * Control frames.
  232  */
  233 struct ieee80211_frame_min {
  234         u_int8_t        i_fc[2];
  235         u_int8_t        i_dur[2];
  236         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
  237         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  238         /* FCS */
  239 } __attribute__((__packed__));
  240 
  241 struct ieee80211_frame_rts {
  242         u_int8_t        i_fc[2];
  243         u_int8_t        i_dur[2];
  244         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  245         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  246         /* FCS */
  247 } __attribute__((__packed__));
  248 
  249 struct ieee80211_frame_cts {
  250         u_int8_t        i_fc[2];
  251         u_int8_t        i_dur[2];
  252         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  253         /* FCS */
  254 } __attribute__((__packed__));
  255 
  256 struct ieee80211_frame_ack {
  257         u_int8_t        i_fc[2];
  258         u_int8_t        i_dur[2];
  259         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  260         /* FCS */
  261 } __attribute__((__packed__));
  262 
  263 struct ieee80211_frame_pspoll {
  264         u_int8_t        i_fc[2];
  265         u_int8_t        i_aid[2];
  266         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  267         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  268         /* FCS */
  269 } __attribute__((__packed__));
  270 
  271 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
  272         u_int8_t        i_fc[2];
  273         u_int8_t        i_dur[2];       /* should be zero */
  274         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  275         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  276         /* FCS */
  277 } __attribute__((__packed__));
  278 
  279 /*
  280  * BEACON management packets
  281  *
  282  *      octet timestamp[8]
  283  *      octet beacon interval[2]
  284  *      octet capability information[2]
  285  *      information element
  286  *              octet elemid
  287  *              octet length
  288  *              octet information[length]
  289  */
  290 
  291 typedef u_int8_t *ieee80211_mgt_beacon_t;
  292 
  293 #define IEEE80211_BEACON_INTERVAL(beacon) \
  294         ((beacon)[8] | ((beacon)[9] << 8))
  295 #define IEEE80211_BEACON_CAPABILITY(beacon) \
  296         ((beacon)[10] | ((beacon)[11] << 8))
  297 
  298 #define IEEE80211_CAPINFO_ESS                   0x0001
  299 #define IEEE80211_CAPINFO_IBSS                  0x0002
  300 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  301 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  302 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  303 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  304 #define IEEE80211_CAPINFO_PBCC                  0x0040
  305 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  306 /* bits 8-9 are reserved */
  307 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  308 #define IEEE80211_CAPINFO_RSN                   0x0800
  309 /* bit 12 is reserved */
  310 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  311 /* bits 14-15 are reserved */
  312 
  313 /*
  314  * 802.11i/WPA information element (maximally sized).
  315  */
  316 struct ieee80211_ie_wpa {
  317         u_int8_t        wpa_id;         /* IEEE80211_ELEMID_VENDOR */
  318         u_int8_t        wpa_len;        /* length in bytes */
  319         u_int8_t        wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
  320         u_int8_t        wpa_type;       /* OUI type */
  321         u_int16_t       wpa_version;    /* spec revision */
  322         u_int32_t       wpa_mcipher[1]; /* multicast/group key cipher */
  323         u_int16_t       wpa_uciphercnt; /* # pairwise key ciphers */
  324         u_int32_t       wpa_uciphers[8];/* ciphers */
  325         u_int16_t       wpa_authselcnt; /* authentication selector cnt*/
  326         u_int32_t       wpa_authsels[8];/* selectors */
  327         u_int16_t       wpa_caps;       /* 802.11i capabilities */
  328         u_int16_t       wpa_pmkidcnt;   /* 802.11i pmkid count */
  329         u_int16_t       wpa_pmkids[8];  /* 802.11i pmkids */
  330 } __attribute__((__packed__));
  331 
  332 /*
  333  * Management information element payloads
  334  */
  335 union ieee80211_information {
  336         char    ssid[IEEE80211_NWID_LEN+1];
  337         struct rates {
  338                 u_int8_t        *p;
  339         } rates;
  340         struct fh {
  341                 u_int16_t       dwell;
  342                 u_int8_t        set;
  343                 u_int8_t        pattern;
  344                 u_int8_t        index;
  345         } fh;
  346         struct ds {
  347                 u_int8_t        channel;
  348         } ds;
  349         struct cf {
  350                 u_int8_t        count;
  351                 u_int8_t        period;
  352                 u_int8_t        maxdur[2];
  353                 u_int8_t        dur[2];
  354         } cf;
  355         struct tim {
  356                 u_int8_t        count;
  357                 u_int8_t        period;
  358                 u_int8_t        bitctl;
  359                 /* u_int8_t     pvt[251]; The driver needs to use this. */
  360         } tim;
  361         struct ibss {
  362                 u_int16_t       atim;
  363         } ibss;
  364         struct challenge {
  365                 u_int8_t        *p;
  366                 u_int8_t        len;
  367         } challenge;
  368         struct erp {
  369                 u_int8_t        flags;
  370         } erp;
  371         struct country {
  372                 u_int8_t        cc[3];          /* ISO CC+(I)ndoor/(O)utdoor */
  373                 struct {
  374                         u_int8_t schan;         /* starting channel */
  375                         u_int8_t nchan;         /* number channels */
  376                         u_int8_t maxtxpwr;
  377                 } band[4];                      /* up to 4 sub bands */
  378         } country;
  379         struct ath {
  380                 u_int8_t        flags;
  381         } ath;
  382 };
  383 
  384 enum {
  385         IEEE80211_ELEMID_SSID           = 0,
  386         IEEE80211_ELEMID_RATES          = 1,
  387         IEEE80211_ELEMID_FHPARMS        = 2,
  388         IEEE80211_ELEMID_DSPARMS        = 3,
  389         IEEE80211_ELEMID_CFPARMS        = 4,
  390         IEEE80211_ELEMID_TIM            = 5,
  391         IEEE80211_ELEMID_IBSSPARMS      = 6,
  392         IEEE80211_ELEMID_COUNTRY        = 7,
  393         IEEE80211_ELEMID_CHALLENGE      = 16,
  394         /* 17-31 reserved for challenge text extension */
  395         IEEE80211_ELEMID_ERP            = 42,
  396         IEEE80211_ELEMID_RSN            = 48,
  397         IEEE80211_ELEMID_XRATES         = 50,
  398         IEEE80211_ELEMID_TPC            = 150,
  399         IEEE80211_ELEMID_CCKM           = 156,
  400         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
  401 };
  402 
  403 #define IEEE80211_CHALLENGE_LEN         128
  404 
  405 #define IEEE80211_RATE_BASIC            0x80
  406 #define IEEE80211_RATE_VAL              0x7f
  407 
  408 /* EPR information element flags */
  409 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
  410 #define IEEE80211_ERP_USE_PROTECTION    0x02
  411 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
  412 
  413 /* Atheros private advanced capabilities info */
  414 #define ATHEROS_CAP_TURBO_PRIME         0x01
  415 #define ATHEROS_CAP_COMPRESSION         0x02
  416 #define ATHEROS_CAP_FAST_FRAME          0x04
  417 /* bits 3-6 reserved */
  418 #define ATHEROS_CAP_BOOST               0x80
  419 
  420 #define ATH_OUI                 0x7f0300                /* Atheros OUI */
  421 #define ATH_OUI_TYPE            0x01
  422 #define ATH_OUI_VERSION         0x01
  423 
  424 #define WPA_OUI                 0xf25000
  425 #define WPA_OUI_TYPE            0x01
  426 #define WPA_VERSION             1               /* current supported version */
  427 
  428 #define WPA_CSE_NULL            0x00
  429 #define WPA_CSE_WEP40           0x01
  430 #define WPA_CSE_TKIP            0x02
  431 #define WPA_CSE_CCMP            0x04
  432 #define WPA_CSE_WEP104          0x05
  433 
  434 #define WPA_ASE_NONE            0x00
  435 #define WPA_ASE_8021X_UNSPEC    0x01
  436 #define WPA_ASE_8021X_PSK       0x02
  437 
  438 #define RSN_OUI                 0xac0f00
  439 #define RSN_VERSION             1               /* current supported version */
  440 
  441 #define RSN_CSE_NULL            0x00
  442 #define RSN_CSE_WEP40           0x01
  443 #define RSN_CSE_TKIP            0x02
  444 #define RSN_CSE_WRAP            0x03
  445 #define RSN_CSE_CCMP            0x04
  446 #define RSN_CSE_WEP104          0x05
  447 
  448 #define RSN_ASE_NONE            0x00
  449 #define RSN_ASE_8021X_UNSPEC    0x01
  450 #define RSN_ASE_8021X_PSK       0x02
  451 
  452 #define WME_OUI                 0xf25000
  453 #define WME_OUI_TYPE            0x02
  454 #define WME_VERSION             1
  455 
  456 /* WME stream classes */
  457 #define WME_AC_BE       0               /* best effort */
  458 #define WME_AC_BK       1               /* background */
  459 #define WME_AC_VI       2               /* video */
  460 #define WME_AC_VO       3               /* voice */
  461 
  462 /*
  463  * AUTH management packets
  464  *
  465  *      octet algo[2]
  466  *      octet seq[2]
  467  *      octet status[2]
  468  *      octet chal.id
  469  *      octet chal.length
  470  *      octet chal.text[253]
  471  */
  472 
  473 typedef u_int8_t *ieee80211_mgt_auth_t;
  474 
  475 #define IEEE80211_AUTH_ALGORITHM(auth) \
  476         ((auth)[0] | ((auth)[1] << 8))
  477 #define IEEE80211_AUTH_TRANSACTION(auth) \
  478         ((auth)[2] | ((auth)[3] << 8))
  479 #define IEEE80211_AUTH_STATUS(auth) \
  480         ((auth)[4] | ((auth)[5] << 8))
  481 
  482 #define IEEE80211_AUTH_ALG_OPEN         0x0000
  483 #define IEEE80211_AUTH_ALG_SHARED       0x0001
  484 #define IEEE80211_AUTH_ALG_LEAP         0x0080
  485 
  486 enum {
  487         IEEE80211_AUTH_OPEN_REQUEST             = 1,
  488         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
  489 };
  490 
  491 enum {
  492         IEEE80211_AUTH_SHARED_REQUEST           = 1,
  493         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
  494         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
  495         IEEE80211_AUTH_SHARED_PASS              = 4,
  496 };
  497 
  498 /*
  499  * Reason codes
  500  *
  501  * Unlisted codes are reserved
  502  */
  503 
  504 enum {
  505         IEEE80211_REASON_UNSPECIFIED            = 1,
  506         IEEE80211_REASON_AUTH_EXPIRE            = 2,
  507         IEEE80211_REASON_AUTH_LEAVE             = 3,
  508         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
  509         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
  510         IEEE80211_REASON_NOT_AUTHED             = 6,
  511         IEEE80211_REASON_NOT_ASSOCED            = 7,
  512         IEEE80211_REASON_ASSOC_LEAVE            = 8,
  513         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
  514 
  515         IEEE80211_REASON_RSN_REQUIRED           = 11,
  516         IEEE80211_REASON_RSN_INCONSISTENT       = 12,
  517         IEEE80211_REASON_IE_INVALID             = 13,
  518         IEEE80211_REASON_MIC_FAILURE            = 14,
  519 
  520         IEEE80211_STATUS_SUCCESS                = 0,
  521         IEEE80211_STATUS_UNSPECIFIED            = 1,
  522         IEEE80211_STATUS_CAPINFO                = 10,
  523         IEEE80211_STATUS_NOT_ASSOCED            = 11,
  524         IEEE80211_STATUS_OTHER                  = 12,
  525         IEEE80211_STATUS_ALG                    = 13,
  526         IEEE80211_STATUS_SEQUENCE               = 14,
  527         IEEE80211_STATUS_CHALLENGE              = 15,
  528         IEEE80211_STATUS_TIMEOUT                = 16,
  529         IEEE80211_STATUS_TOOMANY                = 17,
  530         IEEE80211_STATUS_BASIC_RATE             = 18,
  531         IEEE80211_STATUS_SP_REQUIRED            = 19,
  532         IEEE80211_STATUS_PBCC_REQUIRED          = 20,
  533         IEEE80211_STATUS_CA_REQUIRED            = 21,
  534         IEEE80211_STATUS_TOO_MANY_STATIONS      = 22,
  535         IEEE80211_STATUS_RATES                  = 23,
  536         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,
  537         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,
  538 };
  539 
  540 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
  541 #define IEEE80211_WEP_NKID              4       /* number of key ids */
  542 
  543 /* WEP header constants */
  544 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
  545 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
  546 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
  547 #define IEEE80211_WEP_TOTLEN            (IEEE80211_WEP_IVLEN + \
  548                                          IEEE80211_WEP_KIDLEN + \
  549                                          IEEE80211_WEP_CRCLEN)
  550 /*
  551  * 802.11i defines an extended IV for use with non-WEP ciphers.
  552  * When the EXTIV bit is set in the key id byte an additional
  553  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
  554  * EXTIV bit is likewise set but the 8 bytes represent the
  555  * CCMP header rather than IV+extended-IV.
  556  */
  557 #define IEEE80211_WEP_EXTIV             0x20
  558 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
  559 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
  560 
  561 #define IEEE80211_CRC_LEN               4
  562 
  563 /*
  564  * Maximum acceptable MTU is:
  565  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
  566  *              QoS overhead - RSN/WPA overhead
  567  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
  568  * mtu is Ethernet-compatible; it's set by ether_ifattach.
  569  */
  570 #define IEEE80211_MTU_MAX               2290
  571 #define IEEE80211_MTU_MIN               32
  572 
  573 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
  574     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
  575 #define IEEE80211_ACK_LEN \
  576         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
  577 #define IEEE80211_MIN_LEN \
  578         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
  579 
  580 /*
  581  * The 802.11 spec says at most 2007 stations may be
  582  * associated at once.  For most AP's this is way more
  583  * than is feasible so we use a default of 128.  This
  584  * number may be overridden by the driver and/or by
  585  * user configuration.
  586  */
  587 #define IEEE80211_AID_MAX               2007
  588 #define IEEE80211_AID_DEF               128
  589 
  590 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
  591 #define IEEE80211_AID_SET(b, w) \
  592         ((w)[IEEE80211_AID(b) / 32] |= (1 << (IEEE80211_AID(b) % 32)))
  593 #define IEEE80211_AID_CLR(b, w) \
  594         ((w)[IEEE80211_AID(b) / 32] &= ~(1 << (IEEE80211_AID(b) % 32)))
  595 #define IEEE80211_AID_ISSET(b, w) \
  596         ((w)[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32)))
  597 
  598 /*
  599  * RTS frame length parameters.  The default is specified in
  600  * the 802.11 spec.  The max may be wrong for jumbo frames.
  601  */
  602 #define IEEE80211_RTS_DEFAULT           512
  603 #define IEEE80211_RTS_MIN               1
  604 #define IEEE80211_RTS_MAX               IEEE80211_MAX_LEN
  605 
  606 /*
  607  * 802.11 frame duration definitions.
  608  */
  609 
  610 struct ieee80211_duration {
  611         uint16_t        d_rts_dur;
  612         uint16_t        d_data_dur;
  613         uint16_t        d_plcp_len;
  614         uint8_t         d_residue;      /* unused octets in time slot */
  615 };
  616 
  617 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
  618 #define IEEE80211_DUR_TU                1024
  619 
  620 /* IEEE 802.11b durations for DSSS PHY in microseconds */
  621 #define IEEE80211_DUR_DS_LONG_PREAMBLE  144
  622 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
  623 
  624 #define IEEE80211_DUR_DS_SLOW_PLCPHDR   48
  625 #define IEEE80211_DUR_DS_FAST_PLCPHDR   24
  626 #define IEEE80211_DUR_DS_SLOW_ACK       112
  627 #define IEEE80211_DUR_DS_FAST_ACK       56
  628 #define IEEE80211_DUR_DS_SLOW_CTS       112
  629 #define IEEE80211_DUR_DS_FAST_CTS       56
  630 
  631 #define IEEE80211_DUR_DS_SLOT           20
  632 #define IEEE80211_DUR_DS_SIFS           10
  633 #define IEEE80211_DUR_DS_PIFS   (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
  634 #define IEEE80211_DUR_DS_DIFS   (IEEE80211_DUR_DS_SIFS + \
  635                                  2 * IEEE80211_DUR_DS_SLOT)
  636 #define IEEE80211_DUR_DS_EIFS   (IEEE80211_DUR_DS_SIFS + \
  637                                  IEEE80211_DUR_DS_SLOW_ACK + \
  638                                  IEEE80211_DUR_DS_LONG_PREAMBLE + \
  639                                  IEEE80211_DUR_DS_SLOW_PLCPHDR + \
  640                                  IEEE80211_DUR_DIFS)
  641 
  642 enum {
  643         IEEE80211_AUTH_NONE     = 0,
  644         IEEE80211_AUTH_OPEN     = 1,            /* open */
  645         IEEE80211_AUTH_SHARED   = 2,            /* shared-key */
  646         IEEE80211_AUTH_8021X    = 3,            /* 802.1x */
  647         IEEE80211_AUTH_AUTO     = 4,            /* auto-select/accept */
  648         /* NB: these are used only for ioctls */
  649         IEEE80211_AUTH_WPA      = 5,            /* WPA w/ 802.1x */
  650         IEEE80211_AUTH_WPA_PSK  = 6,            /* WPA w/ preshared key */
  651         IEEE80211_AUTH_WPA2     = 7,            /* WPA2 w/ 802.1x */
  652         IEEE80211_AUTH_WPA2_PSK = 8,            /* WPA2 w/ preshared key */
  653 };
  654 
  655 #endif /* _NET80211_IEEE80211_H_ */

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