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 1.17 2006/03/28 00:13:56 dyoung Exp $    */
    2 /*-
    3  * Copyright (c) 2001 Atsushi Onoe
    4  * Copyright (c) 2002-2005 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 1.10 2005/07/22 16:55:27 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 } __packed;
   54 
   55 #define IEEE80211_PLCP_SFD      0xF3A0 
   56 #define IEEE80211_PLCP_SERVICE  0x00
   57 
   58 /*
   59  * generic definitions for IEEE 802.11 frames
   60  */
   61 struct ieee80211_frame {
   62         u_int8_t        i_fc[2];
   63         u_int8_t        i_dur[2];
   64         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   65         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   66         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   67         u_int8_t        i_seq[2];
   68         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   69         /* see below */
   70 } __packed;
   71 
   72 struct ieee80211_qosframe {
   73         u_int8_t        i_fc[2];
   74         u_int8_t        i_dur[2];
   75         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   76         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   77         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   78         u_int8_t        i_seq[2];
   79         u_int8_t        i_qos[2];
   80         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   81         /* see below */
   82 } __packed;
   83 
   84 struct ieee80211_qoscntl {
   85         u_int8_t        i_qos[2];
   86 };
   87 
   88 struct ieee80211_frame_addr4 {
   89         u_int8_t        i_fc[2];
   90         u_int8_t        i_dur[2];
   91         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
   92         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
   93         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
   94         u_int8_t        i_seq[2];
   95         u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
   96 } __packed;
   97 
   98 
   99 struct ieee80211_qosframe_addr4 {
  100         u_int8_t        i_fc[2];
  101         u_int8_t        i_dur[2];
  102         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
  103         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  104         u_int8_t        i_addr3[IEEE80211_ADDR_LEN];
  105         u_int8_t        i_seq[2];
  106         u_int8_t        i_addr4[IEEE80211_ADDR_LEN];
  107         u_int8_t        i_qos[2];
  108 } __packed;
  109 
  110 #define IEEE80211_FC0_VERSION_MASK              0x03
  111 #define IEEE80211_FC0_VERSION_SHIFT             0
  112 #define IEEE80211_FC0_VERSION_0                 0x00
  113 #define IEEE80211_FC0_TYPE_MASK                 0x0c
  114 #define IEEE80211_FC0_TYPE_SHIFT                2
  115 #define IEEE80211_FC0_TYPE_MGT                  0x00
  116 #define IEEE80211_FC0_TYPE_CTL                  0x04
  117 #define IEEE80211_FC0_TYPE_DATA                 0x08
  118 
  119 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
  120 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
  121 /* for TYPE_MGT */
  122 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
  123 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
  124 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
  125 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
  126 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
  127 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
  128 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
  129 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
  130 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
  131 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
  132 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
  133 /* for TYPE_CTL */
  134 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
  135 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
  136 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
  137 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
  138 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
  139 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
  140 /* for TYPE_DATA (bit combination) */
  141 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
  142 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
  143 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
  144 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
  145 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
  146 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
  147 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
  148 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
  149 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
  150 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0
  151 
  152 #define IEEE80211_FC1_DIR_MASK                  0x03
  153 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
  154 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
  155 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
  156 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
  157 
  158 #define IEEE80211_FC1_MORE_FRAG                 0x04
  159 #define IEEE80211_FC1_RETRY                     0x08
  160 #define IEEE80211_FC1_PWR_MGT                   0x10
  161 #define IEEE80211_FC1_MORE_DATA                 0x20
  162 #define IEEE80211_FC1_WEP                       0x40
  163 #define IEEE80211_FC1_ORDER                     0x80
  164 
  165 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  166 #define IEEE80211_SEQ_FRAG_SHIFT                0
  167 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  168 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  169 
  170 #define IEEE80211_NWID_LEN                      32
  171 
  172 #define IEEE80211_QOS_TXOP                      0x00ff
  173 /* bit 8 is reserved */
  174 #define IEEE80211_QOS_ACKPOLICY                 0x60
  175 #define IEEE80211_QOS_ACKPOLICY_S               5
  176 #define IEEE80211_QOS_ESOP                      0x10
  177 #define IEEE80211_QOS_ESOP_S                    4
  178 #define IEEE80211_QOS_TID                       0x0f
  179 
  180 /* does frame have QoS sequence control data */
  181 #define IEEE80211_QOS_HAS_SEQ(wh) \
  182         (((wh)->i_fc[0] & \
  183           (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
  184           (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
  185 
  186 /*
  187  * WME/802.11e information element.
  188  */
  189 struct ieee80211_wme_info {
  190         u_int8_t        wme_id;         /* IEEE80211_ELEMID_VENDOR */
  191         u_int8_t        wme_len;        /* length in bytes */
  192         u_int8_t        wme_oui[3];     /* 0x00, 0x50, 0xf2 */
  193         u_int8_t        wme_type;       /* OUI type */
  194         u_int8_t        wme_subtype;    /* OUI subtype */
  195         u_int8_t        wme_version;    /* spec revision */
  196         u_int8_t        wme_info;       /* QoS info */
  197 } __packed;
  198 
  199 /*
  200  * WME/802.11e Tspec Element
  201  */
  202 struct ieee80211_wme_tspec {
  203         u_int8_t        ts_id;
  204         u_int8_t        ts_len;
  205         u_int8_t        ts_oui[3];
  206         u_int8_t        ts_oui_type;
  207         u_int8_t        ts_oui_subtype;
  208         u_int8_t        ts_version;
  209         u_int8_t        ts_tsinfo[3];
  210         u_int8_t        ts_nom_msdu[2];
  211         u_int8_t        ts_max_msdu[2];
  212         u_int8_t        ts_min_svc[4];
  213         u_int8_t        ts_max_svc[4];
  214         u_int8_t        ts_inactv_intv[4];
  215         u_int8_t        ts_susp_intv[4];
  216         u_int8_t        ts_start_svc[4];
  217         u_int8_t        ts_min_rate[4];
  218         u_int8_t        ts_mean_rate[4];
  219         u_int8_t        ts_max_burst[4];
  220         u_int8_t        ts_min_phy[4];
  221         u_int8_t        ts_peak_rate[4];
  222         u_int8_t        ts_delay[4];
  223         u_int8_t        ts_surplus[2];
  224         u_int8_t        ts_medium_time[2];
  225 } __packed;
  226 
  227 /*
  228  * WME AC parameter field
  229  */
  230 struct ieee80211_wme_acparams {
  231         u_int8_t        acp_aci_aifsn;
  232         u_int8_t        acp_logcwminmax;
  233         u_int16_t       acp_txop;
  234 } __packed;
  235 
  236 #define WME_NUM_AC              4       /* 4 AC categories */
  237 
  238 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
  239 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
  240 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
  241 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
  242 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
  243 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
  244 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
  245 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
  246 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
  247 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
  248 
  249 #define WME_AC_TO_TID(_ac) (       \
  250         ((_ac) == WME_AC_VO) ? 6 : \
  251         ((_ac) == WME_AC_VI) ? 5 : \
  252         ((_ac) == WME_AC_BK) ? 1 : \
  253         0)
  254 
  255 #define TID_TO_WME_AC(_tid) (      \
  256         ((_tid) < 1) ? WME_AC_BE : \
  257         ((_tid) < 3) ? WME_AC_BK : \
  258         ((_tid) < 6) ? WME_AC_VI : \
  259         WME_AC_VO)
  260 
  261 /*
  262  * WME Parameter Element
  263  */
  264 struct ieee80211_wme_param {
  265         u_int8_t        param_id;
  266         u_int8_t        param_len;
  267         u_int8_t        param_oui[3];
  268         u_int8_t        param_oui_type;
  269         u_int8_t        param_oui_sybtype;
  270         u_int8_t        param_version;
  271         u_int8_t        param_qosInfo;
  272 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
  273         u_int8_t        param_reserved;
  274         struct ieee80211_wme_acparams   params_acParams[WME_NUM_AC];
  275 } __packed;
  276 
  277 /*
  278  * Management Notification Frame
  279  */
  280 struct ieee80211_mnf {
  281         u_int8_t        mnf_category;
  282         u_int8_t        mnf_action;
  283         u_int8_t        mnf_dialog;
  284         u_int8_t        mnf_status;
  285 } __packed;
  286 #define MNF_SETUP_REQ   0
  287 #define MNF_SETUP_RESP  1
  288 #define MNF_TEARDOWN    2
  289 
  290 /*
  291  * Control frames.
  292  */
  293 struct ieee80211_frame_min {
  294         u_int8_t        i_fc[2];
  295         u_int8_t        i_dur[2];
  296         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
  297         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  298         /* FCS */
  299 } __packed;
  300 
  301 struct ieee80211_frame_rts {
  302         u_int8_t        i_fc[2];
  303         u_int8_t        i_dur[2];
  304         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  305         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  306         /* FCS */
  307 } __packed;
  308 
  309 struct ieee80211_frame_cts {
  310         u_int8_t        i_fc[2];
  311         u_int8_t        i_dur[2];
  312         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  313         /* FCS */
  314 } __packed;
  315 
  316 struct ieee80211_frame_ack {
  317         u_int8_t        i_fc[2];
  318         u_int8_t        i_dur[2];
  319         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  320         /* FCS */
  321 } __packed;
  322 
  323 struct ieee80211_frame_pspoll {
  324         u_int8_t        i_fc[2];
  325         u_int8_t        i_aid[2];
  326         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  327         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  328         /* FCS */
  329 } __packed;
  330 
  331 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
  332         u_int8_t        i_fc[2];
  333         u_int8_t        i_dur[2];       /* should be zero */
  334         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  335         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  336         /* FCS */
  337 } __packed;
  338 
  339 /*
  340  * BEACON management packets
  341  *
  342  *      octet timestamp[8]
  343  *      octet beacon interval[2]
  344  *      octet capability information[2]
  345  *      information element
  346  *              octet elemid
  347  *              octet length
  348  *              octet information[length]
  349  */
  350 
  351 typedef u_int8_t *ieee80211_mgt_beacon_t;
  352 
  353 #define IEEE80211_BEACON_INTERVAL(beacon) \
  354         ((beacon)[8] | ((beacon)[9] << 8))
  355 #define IEEE80211_BEACON_CAPABILITY(beacon) \
  356         ((beacon)[10] | ((beacon)[11] << 8))
  357 
  358 #define IEEE80211_CAPINFO_ESS                   0x0001
  359 #define IEEE80211_CAPINFO_IBSS                  0x0002
  360 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  361 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  362 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  363 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  364 #define IEEE80211_CAPINFO_PBCC                  0x0040
  365 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  366 /* bits 8-9 are reserved */
  367 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  368 #define IEEE80211_CAPINFO_RSN                   0x0800
  369 /* bit 12 is reserved */
  370 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  371 /* bits 14-15 are reserved */
  372 
  373 /*
  374  * 802.11i/WPA information element (maximally sized).
  375  */
  376 struct ieee80211_ie_wpa {
  377         u_int8_t        wpa_id;         /* IEEE80211_ELEMID_VENDOR */
  378         u_int8_t        wpa_len;        /* length in bytes */
  379         u_int8_t        wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
  380         u_int8_t        wpa_type;       /* OUI type */
  381         u_int16_t       wpa_version;    /* spec revision */
  382         u_int32_t       wpa_mcipher[1]; /* multicast/group key cipher */
  383         u_int16_t       wpa_uciphercnt; /* # pairwise key ciphers */
  384         u_int32_t       wpa_uciphers[8];/* ciphers */
  385         u_int16_t       wpa_authselcnt; /* authentication selector cnt*/
  386         u_int32_t       wpa_authsels[8];/* selectors */
  387         u_int16_t       wpa_caps;       /* 802.11i capabilities */
  388         u_int16_t       wpa_pmkidcnt;   /* 802.11i pmkid count */
  389         u_int16_t       wpa_pmkids[8];  /* 802.11i pmkids */
  390 } __packed;
  391 
  392 /*
  393  * Management information element payloads.
  394  */
  395 
  396 enum {
  397         IEEE80211_ELEMID_SSID           = 0,
  398         IEEE80211_ELEMID_RATES          = 1,
  399         IEEE80211_ELEMID_FHPARMS        = 2,
  400         IEEE80211_ELEMID_DSPARMS        = 3,
  401         IEEE80211_ELEMID_CFPARMS        = 4,
  402         IEEE80211_ELEMID_TIM            = 5,
  403         IEEE80211_ELEMID_IBSSPARMS      = 6,
  404         IEEE80211_ELEMID_COUNTRY        = 7,
  405         IEEE80211_ELEMID_CHALLENGE      = 16,
  406         /* 17-31 reserved for challenge text extension */
  407         IEEE80211_ELEMID_ERP            = 42,
  408         IEEE80211_ELEMID_RSN            = 48,
  409         IEEE80211_ELEMID_XRATES         = 50,
  410         IEEE80211_ELEMID_TPC            = 150,
  411         IEEE80211_ELEMID_CCKM           = 156,
  412         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
  413 };
  414 
  415 struct ieee80211_tim_ie {
  416         u_int8_t        tim_ie;                 /* IEEE80211_ELEMID_TIM */
  417         u_int8_t        tim_len;
  418         u_int8_t        tim_count;              /* DTIM count */
  419         u_int8_t        tim_period;             /* DTIM period */
  420         u_int8_t        tim_bitctl;             /* bitmap control */
  421         u_int8_t        tim_bitmap[1];          /* variable-length bitmap */
  422 } __packed;
  423 
  424 struct ieee80211_band {
  425         u_int8_t schan;                 /* starting channel */
  426         u_int8_t nchan;                 /* number channels */
  427         u_int8_t maxtxpwr;              /* tx power cap */
  428 } __packed;
  429 
  430 struct ieee80211_country_ie {
  431         u_int8_t        ie;                     /* IEEE80211_ELEMID_COUNTRY */
  432         u_int8_t        len;
  433         u_int8_t        cc[3];                  /* ISO CC+(I)ndoor/(O)utdoor */
  434         struct ieee80211_band band[4];          /* 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 
  442 /* EPR information element flags */
  443 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
  444 #define IEEE80211_ERP_USE_PROTECTION    0x02
  445 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
  446 
  447 /* Atheros private advanced capabilities info */
  448 #define ATHEROS_CAP_TURBO_PRIME         0x01
  449 #define ATHEROS_CAP_COMPRESSION         0x02
  450 #define ATHEROS_CAP_FAST_FRAME          0x04
  451 /* bits 3-6 reserved */
  452 #define ATHEROS_CAP_BOOST               0x80
  453 
  454 #define ATH_OUI                 0x7f0300                /* Atheros OUI */
  455 #define ATH_OUI_TYPE            0x01
  456 #define ATH_OUI_VERSION         0x01
  457 
  458 #define WPA_OUI                 0xf25000
  459 #define WPA_OUI_TYPE            0x01
  460 #define WPA_VERSION             1               /* current supported version */
  461 
  462 #define WPA_CSE_NULL            0x00
  463 #define WPA_CSE_WEP40           0x01
  464 #define WPA_CSE_TKIP            0x02
  465 #define WPA_CSE_CCMP            0x04
  466 #define WPA_CSE_WEP104          0x05
  467 
  468 #define WPA_ASE_NONE            0x00
  469 #define WPA_ASE_8021X_UNSPEC    0x01
  470 #define WPA_ASE_8021X_PSK       0x02
  471 
  472 #define RSN_OUI                 0xac0f00
  473 #define RSN_VERSION             1               /* current supported version */
  474 
  475 #define RSN_CSE_NULL            0x00
  476 #define RSN_CSE_WEP40           0x01
  477 #define RSN_CSE_TKIP            0x02
  478 #define RSN_CSE_WRAP            0x03
  479 #define RSN_CSE_CCMP            0x04
  480 #define RSN_CSE_WEP104          0x05
  481 
  482 #define RSN_ASE_NONE            0x00
  483 #define RSN_ASE_8021X_UNSPEC    0x01
  484 #define RSN_ASE_8021X_PSK       0x02
  485 
  486 #define RSN_CAP_PREAUTH         0x01
  487 
  488 #define WME_OUI                 0xf25000
  489 #define WME_OUI_TYPE            0x02
  490 #define WME_INFO_OUI_SUBTYPE    0x00
  491 #define WME_PARAM_OUI_SUBTYPE   0x01
  492 #define WME_VERSION             1
  493 
  494 /* WME stream classes */
  495 #define WME_AC_BE       0               /* best effort */
  496 #define WME_AC_BK       1               /* background */
  497 #define WME_AC_VI       2               /* video */
  498 #define WME_AC_VO       3               /* voice */
  499 
  500 /*
  501  * AUTH management packets
  502  *
  503  *      octet algo[2]
  504  *      octet seq[2]
  505  *      octet status[2]
  506  *      octet chal.id
  507  *      octet chal.length
  508  *      octet chal.text[253]
  509  */
  510 
  511 typedef u_int8_t *ieee80211_mgt_auth_t;
  512 
  513 #define IEEE80211_AUTH_ALGORITHM(auth) \
  514         ((auth)[0] | ((auth)[1] << 8))
  515 #define IEEE80211_AUTH_TRANSACTION(auth) \
  516         ((auth)[2] | ((auth)[3] << 8))
  517 #define IEEE80211_AUTH_STATUS(auth) \
  518         ((auth)[4] | ((auth)[5] << 8))
  519 
  520 #define IEEE80211_AUTH_ALG_OPEN         0x0000
  521 #define IEEE80211_AUTH_ALG_SHARED       0x0001
  522 #define IEEE80211_AUTH_ALG_LEAP         0x0080
  523 
  524 enum {
  525         IEEE80211_AUTH_OPEN_REQUEST             = 1,
  526         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
  527 };
  528 
  529 enum {
  530         IEEE80211_AUTH_SHARED_REQUEST           = 1,
  531         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
  532         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
  533         IEEE80211_AUTH_SHARED_PASS              = 4,
  534 };
  535 
  536 /*
  537  * Reason codes
  538  *
  539  * Unlisted codes are reserved
  540  */
  541 
  542 enum {
  543         IEEE80211_REASON_UNSPECIFIED            = 1,
  544         IEEE80211_REASON_AUTH_EXPIRE            = 2,
  545         IEEE80211_REASON_AUTH_LEAVE             = 3,
  546         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
  547         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
  548         IEEE80211_REASON_NOT_AUTHED             = 6,
  549         IEEE80211_REASON_NOT_ASSOCED            = 7,
  550         IEEE80211_REASON_ASSOC_LEAVE            = 8,
  551         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
  552 
  553         IEEE80211_REASON_RSN_REQUIRED           = 11,
  554         IEEE80211_REASON_RSN_INCONSISTENT       = 12,
  555         IEEE80211_REASON_IE_INVALID             = 13,
  556         IEEE80211_REASON_MIC_FAILURE            = 14,
  557 
  558         IEEE80211_STATUS_SUCCESS                = 0,
  559         IEEE80211_STATUS_UNSPECIFIED            = 1,
  560         IEEE80211_STATUS_CAPINFO                = 10,
  561         IEEE80211_STATUS_NOT_ASSOCED            = 11,
  562         IEEE80211_STATUS_OTHER                  = 12,
  563         IEEE80211_STATUS_ALG                    = 13,
  564         IEEE80211_STATUS_SEQUENCE               = 14,
  565         IEEE80211_STATUS_CHALLENGE              = 15,
  566         IEEE80211_STATUS_TIMEOUT                = 16,
  567         IEEE80211_STATUS_TOOMANY                = 17,
  568         IEEE80211_STATUS_BASIC_RATE             = 18,
  569         IEEE80211_STATUS_SP_REQUIRED            = 19,
  570         IEEE80211_STATUS_PBCC_REQUIRED          = 20,
  571         IEEE80211_STATUS_CA_REQUIRED            = 21,
  572         IEEE80211_STATUS_TOO_MANY_STATIONS      = 22,
  573         IEEE80211_STATUS_RATES                  = 23,
  574         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,
  575         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,
  576 };
  577 
  578 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
  579 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
  580 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
  581 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
  582 #define IEEE80211_WEP_TOTLEN            (IEEE80211_WEP_IVLEN + \
  583                                          IEEE80211_WEP_KIDLEN + \
  584                                          IEEE80211_WEP_CRCLEN)
  585 #define IEEE80211_WEP_NKID              4       /* number of key ids */
  586 
  587 /*
  588  * 802.11i defines an extended IV for use with non-WEP ciphers.
  589  * When the EXTIV bit is set in the key id byte an additional
  590  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
  591  * EXTIV bit is likewise set but the 8 bytes represent the
  592  * CCMP header rather than IV+extended-IV.
  593  */
  594 #define IEEE80211_WEP_EXTIV             0x20
  595 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
  596 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
  597 
  598 #define IEEE80211_CRC_LEN               4
  599 
  600 /*
  601  * Maximum acceptable MTU is:
  602  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
  603  *              QoS overhead - RSN/WPA overhead
  604  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
  605  * mtu is Ethernet-compatible; it's set by ether_ifattach.
  606  */
  607 #define IEEE80211_MTU_MAX               2290
  608 #define IEEE80211_MTU_MIN               32
  609 
  610 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
  611     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
  612 #define IEEE80211_ACK_LEN \
  613         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
  614 #define IEEE80211_MIN_LEN \
  615         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
  616 
  617 /*
  618  * The 802.11 spec says at most 2007 stations may be
  619  * associated at once.  For most AP's this is way more
  620  * than is feasible so we use a default of 128.  This
  621  * number may be overridden by the driver and/or by
  622  * user configuration.
  623  */
  624 #define IEEE80211_AID_MAX               2007
  625 #define IEEE80211_AID_DEF               128
  626 
  627 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
  628 
  629 /* 
  630  * RTS frame length parameters.  The default is specified in
  631  * the 802.11 spec as 512; we treat it as implementation-dependent
  632  * so it's defined in ieee80211_var.h.  The max may be wrong
  633  * for jumbo frames.
  634  */
  635 #define IEEE80211_RTS_MIN               1
  636 #define IEEE80211_RTS_MAX               2346
  637 
  638 /* 
  639  * TX fragmentation parameters.  As above for RTS, we treat
  640  * default as implementation-dependent so define it elsewhere.
  641  */
  642 #define IEEE80211_FRAG_MIN              256
  643 #define IEEE80211_FRAG_MAX              2346
  644 
  645 /*
  646  * 802.11 frame duration definitions.
  647  */
  648 
  649 struct ieee80211_duration {
  650         uint16_t        d_rts_dur;
  651         uint16_t        d_data_dur;
  652         uint16_t        d_plcp_len;
  653         uint8_t         d_residue;      /* unused octets in time slot */
  654 };
  655 
  656 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
  657 #define IEEE80211_DUR_TU                1024
  658 
  659 /* IEEE 802.11b durations for DSSS PHY in microseconds */
  660 #define IEEE80211_DUR_DS_LONG_PREAMBLE  144
  661 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
  662 
  663 #define IEEE80211_DUR_DS_SLOW_PLCPHDR   48
  664 #define IEEE80211_DUR_DS_FAST_PLCPHDR   24
  665 #define IEEE80211_DUR_DS_SLOW_ACK       112
  666 #define IEEE80211_DUR_DS_FAST_ACK       56
  667 #define IEEE80211_DUR_DS_SLOW_CTS       112
  668 #define IEEE80211_DUR_DS_FAST_CTS       56
  669 
  670 #define IEEE80211_DUR_DS_SLOT           20
  671 #define IEEE80211_DUR_DS_SIFS           10
  672 #define IEEE80211_DUR_DS_PIFS   (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
  673 #define IEEE80211_DUR_DS_DIFS   (IEEE80211_DUR_DS_SIFS + \
  674                                  2 * IEEE80211_DUR_DS_SLOT)
  675 #define IEEE80211_DUR_DS_EIFS   (IEEE80211_DUR_DS_SIFS + \
  676                                  IEEE80211_DUR_DS_SLOW_ACK + \
  677                                  IEEE80211_DUR_DS_LONG_PREAMBLE + \
  678                                  IEEE80211_DUR_DS_SLOW_PLCPHDR + \
  679                                  IEEE80211_DUR_DIFS)
  680 
  681 
  682 #endif /* !_NET80211_IEEE80211_H_ */

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