The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: 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 /*-
    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: releng/6.0/sys/net80211/ieee80211.h 148549 2005-07-29 23:31:04Z sam $
   33  */
   34 #ifndef _NET80211_IEEE80211_H_
   35 #define _NET80211_IEEE80211_H_
   36 
   37 /*
   38  * 802.11 protocol definitions.
   39  */
   40 
   41 #define IEEE80211_ADDR_LEN      6               /* size of 802.11 address */
   42 /* is 802.11 address multicast/broadcast? */
   43 #define IEEE80211_IS_MULTICAST(_a)      (*(_a) & 0x01)
   44 
   45 /* IEEE 802.11 PLCP header */
   46 struct ieee80211_plcp_hdr {
   47         u_int16_t       i_sfd;
   48         u_int8_t        i_signal;
   49         u_int8_t        i_service;
   50         u_int16_t       i_length;
   51         u_int16_t       i_crc;
   52 } __packed;
   53 
   54 #define IEEE80211_PLCP_SFD      0xF3A0 
   55 #define IEEE80211_PLCP_SERVICE  0x00
   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 } __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 } __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 } __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 } __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 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0
  150 
  151 #define IEEE80211_FC1_DIR_MASK                  0x03
  152 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
  153 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
  154 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
  155 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
  156 
  157 #define IEEE80211_FC1_MORE_FRAG                 0x04
  158 #define IEEE80211_FC1_RETRY                     0x08
  159 #define IEEE80211_FC1_PWR_MGT                   0x10
  160 #define IEEE80211_FC1_MORE_DATA                 0x20
  161 #define IEEE80211_FC1_WEP                       0x40
  162 #define IEEE80211_FC1_ORDER                     0x80
  163 
  164 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  165 #define IEEE80211_SEQ_FRAG_SHIFT                0
  166 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  167 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  168 
  169 #define IEEE80211_NWID_LEN                      32
  170 
  171 #define IEEE80211_QOS_TXOP                      0x00ff
  172 /* bit 8 is reserved */
  173 #define IEEE80211_QOS_ACKPOLICY                 0x60
  174 #define IEEE80211_QOS_ACKPOLICY_S               5
  175 #define IEEE80211_QOS_ESOP                      0x10
  176 #define IEEE80211_QOS_ESOP_S                    4
  177 #define IEEE80211_QOS_TID                       0x0f
  178 
  179 /* does frame have QoS sequence control data */
  180 #define IEEE80211_QOS_HAS_SEQ(wh) \
  181         (((wh)->i_fc[0] & \
  182           (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
  183           (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
  184 
  185 /*
  186  * WME/802.11e information element.
  187  */
  188 struct ieee80211_wme_info {
  189         u_int8_t        wme_id;         /* IEEE80211_ELEMID_VENDOR */
  190         u_int8_t        wme_len;        /* length in bytes */
  191         u_int8_t        wme_oui[3];     /* 0x00, 0x50, 0xf2 */
  192         u_int8_t        wme_type;       /* OUI type */
  193         u_int8_t        wme_subtype;    /* OUI subtype */
  194         u_int8_t        wme_version;    /* spec revision */
  195         u_int8_t        wme_info;       /* QoS info */
  196 } __packed;
  197 
  198 /*
  199  * WME/802.11e Tspec Element
  200  */
  201 struct ieee80211_wme_tspec {
  202         u_int8_t        ts_id;
  203         u_int8_t        ts_len;
  204         u_int8_t        ts_oui[3];
  205         u_int8_t        ts_oui_type;
  206         u_int8_t        ts_oui_subtype;
  207         u_int8_t        ts_version;
  208         u_int8_t        ts_tsinfo[3];
  209         u_int8_t        ts_nom_msdu[2];
  210         u_int8_t        ts_max_msdu[2];
  211         u_int8_t        ts_min_svc[4];
  212         u_int8_t        ts_max_svc[4];
  213         u_int8_t        ts_inactv_intv[4];
  214         u_int8_t        ts_susp_intv[4];
  215         u_int8_t        ts_start_svc[4];
  216         u_int8_t        ts_min_rate[4];
  217         u_int8_t        ts_mean_rate[4];
  218         u_int8_t        ts_max_burst[4];
  219         u_int8_t        ts_min_phy[4];
  220         u_int8_t        ts_peak_rate[4];
  221         u_int8_t        ts_delay[4];
  222         u_int8_t        ts_surplus[2];
  223         u_int8_t        ts_medium_time[2];
  224 } __packed;
  225 
  226 /*
  227  * WME AC parameter field
  228  */
  229 struct ieee80211_wme_acparams {
  230         u_int8_t        acp_aci_aifsn;
  231         u_int8_t        acp_logcwminmax;
  232         u_int16_t       acp_txop;
  233 } __packed;
  234 
  235 #define WME_NUM_AC              4       /* 4 AC categories */
  236 
  237 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
  238 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
  239 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
  240 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
  241 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
  242 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
  243 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
  244 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
  245 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
  246 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
  247 
  248 #define WME_AC_TO_TID(_ac) (       \
  249         ((_ac) == WME_AC_VO) ? 6 : \
  250         ((_ac) == WME_AC_VI) ? 5 : \
  251         ((_ac) == WME_AC_BK) ? 1 : \
  252         0)
  253 
  254 #define TID_TO_WME_AC(_tid) (      \
  255         ((_tid) < 1) ? WME_AC_BE : \
  256         ((_tid) < 3) ? WME_AC_BK : \
  257         ((_tid) < 6) ? WME_AC_VI : \
  258         WME_AC_VO)
  259 
  260 /*
  261  * WME Parameter Element
  262  */
  263 struct ieee80211_wme_param {
  264         u_int8_t        param_id;
  265         u_int8_t        param_len;
  266         u_int8_t        param_oui[3];
  267         u_int8_t        param_oui_type;
  268         u_int8_t        param_oui_sybtype;
  269         u_int8_t        param_version;
  270         u_int8_t        param_qosInfo;
  271 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
  272         u_int8_t        param_reserved;
  273         struct ieee80211_wme_acparams   params_acParams[WME_NUM_AC];
  274 } __packed;
  275 
  276 /*
  277  * Management Notification Frame
  278  */
  279 struct ieee80211_mnf {
  280         u_int8_t        mnf_category;
  281         u_int8_t        mnf_action;
  282         u_int8_t        mnf_dialog;
  283         u_int8_t        mnf_status;
  284 } __packed;
  285 #define MNF_SETUP_REQ   0
  286 #define MNF_SETUP_RESP  1
  287 #define MNF_TEARDOWN    2
  288 
  289 /*
  290  * Control frames.
  291  */
  292 struct ieee80211_frame_min {
  293         u_int8_t        i_fc[2];
  294         u_int8_t        i_dur[2];
  295         u_int8_t        i_addr1[IEEE80211_ADDR_LEN];
  296         u_int8_t        i_addr2[IEEE80211_ADDR_LEN];
  297         /* FCS */
  298 } __packed;
  299 
  300 struct ieee80211_frame_rts {
  301         u_int8_t        i_fc[2];
  302         u_int8_t        i_dur[2];
  303         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  304         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  305         /* FCS */
  306 } __packed;
  307 
  308 struct ieee80211_frame_cts {
  309         u_int8_t        i_fc[2];
  310         u_int8_t        i_dur[2];
  311         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  312         /* FCS */
  313 } __packed;
  314 
  315 struct ieee80211_frame_ack {
  316         u_int8_t        i_fc[2];
  317         u_int8_t        i_dur[2];
  318         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  319         /* FCS */
  320 } __packed;
  321 
  322 struct ieee80211_frame_pspoll {
  323         u_int8_t        i_fc[2];
  324         u_int8_t        i_aid[2];
  325         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  326         u_int8_t        i_ta[IEEE80211_ADDR_LEN];
  327         /* FCS */
  328 } __packed;
  329 
  330 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
  331         u_int8_t        i_fc[2];
  332         u_int8_t        i_dur[2];       /* should be zero */
  333         u_int8_t        i_ra[IEEE80211_ADDR_LEN];
  334         u_int8_t        i_bssid[IEEE80211_ADDR_LEN];
  335         /* FCS */
  336 } __packed;
  337 
  338 /*
  339  * BEACON management packets
  340  *
  341  *      octet timestamp[8]
  342  *      octet beacon interval[2]
  343  *      octet capability information[2]
  344  *      information element
  345  *              octet elemid
  346  *              octet length
  347  *              octet information[length]
  348  */
  349 
  350 typedef u_int8_t *ieee80211_mgt_beacon_t;
  351 
  352 #define IEEE80211_BEACON_INTERVAL(beacon) \
  353         ((beacon)[8] | ((beacon)[9] << 8))
  354 #define IEEE80211_BEACON_CAPABILITY(beacon) \
  355         ((beacon)[10] | ((beacon)[11] << 8))
  356 
  357 #define IEEE80211_CAPINFO_ESS                   0x0001
  358 #define IEEE80211_CAPINFO_IBSS                  0x0002
  359 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  360 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  361 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  362 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  363 #define IEEE80211_CAPINFO_PBCC                  0x0040
  364 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  365 /* bits 8-9 are reserved */
  366 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  367 #define IEEE80211_CAPINFO_RSN                   0x0800
  368 /* bit 12 is reserved */
  369 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  370 /* bits 14-15 are reserved */
  371 
  372 /*
  373  * 802.11i/WPA information element (maximally sized).
  374  */
  375 struct ieee80211_ie_wpa {
  376         u_int8_t        wpa_id;         /* IEEE80211_ELEMID_VENDOR */
  377         u_int8_t        wpa_len;        /* length in bytes */
  378         u_int8_t        wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
  379         u_int8_t        wpa_type;       /* OUI type */
  380         u_int16_t       wpa_version;    /* spec revision */
  381         u_int32_t       wpa_mcipher[1]; /* multicast/group key cipher */
  382         u_int16_t       wpa_uciphercnt; /* # pairwise key ciphers */
  383         u_int32_t       wpa_uciphers[8];/* ciphers */
  384         u_int16_t       wpa_authselcnt; /* authentication selector cnt*/
  385         u_int32_t       wpa_authsels[8];/* selectors */
  386         u_int16_t       wpa_caps;       /* 802.11i capabilities */
  387         u_int16_t       wpa_pmkidcnt;   /* 802.11i pmkid count */
  388         u_int16_t       wpa_pmkids[8];  /* 802.11i pmkids */
  389 } __packed;
  390 
  391 /*
  392  * Management information element payloads.
  393  */
  394 
  395 enum {
  396         IEEE80211_ELEMID_SSID           = 0,
  397         IEEE80211_ELEMID_RATES          = 1,
  398         IEEE80211_ELEMID_FHPARMS        = 2,
  399         IEEE80211_ELEMID_DSPARMS        = 3,
  400         IEEE80211_ELEMID_CFPARMS        = 4,
  401         IEEE80211_ELEMID_TIM            = 5,
  402         IEEE80211_ELEMID_IBSSPARMS      = 6,
  403         IEEE80211_ELEMID_COUNTRY        = 7,
  404         IEEE80211_ELEMID_CHALLENGE      = 16,
  405         /* 17-31 reserved for challenge text extension */
  406         IEEE80211_ELEMID_ERP            = 42,
  407         IEEE80211_ELEMID_RSN            = 48,
  408         IEEE80211_ELEMID_XRATES         = 50,
  409         IEEE80211_ELEMID_TPC            = 150,
  410         IEEE80211_ELEMID_CCKM           = 156,
  411         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
  412 };
  413 
  414 struct ieee80211_tim_ie {
  415         u_int8_t        tim_ie;                 /* IEEE80211_ELEMID_TIM */
  416         u_int8_t        tim_len;
  417         u_int8_t        tim_count;              /* DTIM count */
  418         u_int8_t        tim_period;             /* DTIM period */
  419         u_int8_t        tim_bitctl;             /* bitmap control */
  420         u_int8_t        tim_bitmap[1];          /* variable-length bitmap */
  421 } __packed;
  422 
  423 struct ieee80211_country_ie {
  424         u_int8_t        ie;                     /* IEEE80211_ELEMID_COUNTRY */
  425         u_int8_t        len;
  426         u_int8_t        cc[3];                  /* ISO CC+(I)ndoor/(O)utdoor */
  427         struct {
  428                 u_int8_t schan;                 /* starting channel */
  429                 u_int8_t nchan;                 /* number channels */
  430                 u_int8_t maxtxpwr;              /* tx power cap */
  431         } band[4] __packed;                     /* up to 4 sub bands */
  432 } __packed;
  433 
  434 #define IEEE80211_CHALLENGE_LEN         128
  435 
  436 #define IEEE80211_RATE_BASIC            0x80
  437 #define IEEE80211_RATE_VAL              0x7f
  438 
  439 /* EPR information element flags */
  440 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
  441 #define IEEE80211_ERP_USE_PROTECTION    0x02
  442 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
  443 
  444 /* Atheros private advanced capabilities info */
  445 #define ATHEROS_CAP_TURBO_PRIME         0x01
  446 #define ATHEROS_CAP_COMPRESSION         0x02
  447 #define ATHEROS_CAP_FAST_FRAME          0x04
  448 /* bits 3-6 reserved */
  449 #define ATHEROS_CAP_BOOST               0x80
  450 
  451 #define ATH_OUI                 0x7f0300                /* Atheros OUI */
  452 #define ATH_OUI_TYPE            0x01
  453 #define ATH_OUI_VERSION         0x01
  454 
  455 #define WPA_OUI                 0xf25000
  456 #define WPA_OUI_TYPE            0x01
  457 #define WPA_VERSION             1               /* current supported version */
  458 
  459 #define WPA_CSE_NULL            0x00
  460 #define WPA_CSE_WEP40           0x01
  461 #define WPA_CSE_TKIP            0x02
  462 #define WPA_CSE_CCMP            0x04
  463 #define WPA_CSE_WEP104          0x05
  464 
  465 #define WPA_ASE_NONE            0x00
  466 #define WPA_ASE_8021X_UNSPEC    0x01
  467 #define WPA_ASE_8021X_PSK       0x02
  468 
  469 #define RSN_OUI                 0xac0f00
  470 #define RSN_VERSION             1               /* current supported version */
  471 
  472 #define RSN_CSE_NULL            0x00
  473 #define RSN_CSE_WEP40           0x01
  474 #define RSN_CSE_TKIP            0x02
  475 #define RSN_CSE_WRAP            0x03
  476 #define RSN_CSE_CCMP            0x04
  477 #define RSN_CSE_WEP104          0x05
  478 
  479 #define RSN_ASE_NONE            0x00
  480 #define RSN_ASE_8021X_UNSPEC    0x01
  481 #define RSN_ASE_8021X_PSK       0x02
  482 
  483 #define RSN_CAP_PREAUTH         0x01
  484 
  485 #define WME_OUI                 0xf25000
  486 #define WME_OUI_TYPE            0x02
  487 #define WME_INFO_OUI_SUBTYPE    0x00
  488 #define WME_PARAM_OUI_SUBTYPE   0x01
  489 #define WME_VERSION             1
  490 
  491 /* WME stream classes */
  492 #define WME_AC_BE       0               /* best effort */
  493 #define WME_AC_BK       1               /* background */
  494 #define WME_AC_VI       2               /* video */
  495 #define WME_AC_VO       3               /* voice */
  496 
  497 /*
  498  * AUTH management packets
  499  *
  500  *      octet algo[2]
  501  *      octet seq[2]
  502  *      octet status[2]
  503  *      octet chal.id
  504  *      octet chal.length
  505  *      octet chal.text[253]
  506  */
  507 
  508 typedef u_int8_t *ieee80211_mgt_auth_t;
  509 
  510 #define IEEE80211_AUTH_ALGORITHM(auth) \
  511         ((auth)[0] | ((auth)[1] << 8))
  512 #define IEEE80211_AUTH_TRANSACTION(auth) \
  513         ((auth)[2] | ((auth)[3] << 8))
  514 #define IEEE80211_AUTH_STATUS(auth) \
  515         ((auth)[4] | ((auth)[5] << 8))
  516 
  517 #define IEEE80211_AUTH_ALG_OPEN         0x0000
  518 #define IEEE80211_AUTH_ALG_SHARED       0x0001
  519 #define IEEE80211_AUTH_ALG_LEAP         0x0080
  520 
  521 enum {
  522         IEEE80211_AUTH_OPEN_REQUEST             = 1,
  523         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
  524 };
  525 
  526 enum {
  527         IEEE80211_AUTH_SHARED_REQUEST           = 1,
  528         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
  529         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
  530         IEEE80211_AUTH_SHARED_PASS              = 4,
  531 };
  532 
  533 /*
  534  * Reason codes
  535  *
  536  * Unlisted codes are reserved
  537  */
  538 
  539 enum {
  540         IEEE80211_REASON_UNSPECIFIED            = 1,
  541         IEEE80211_REASON_AUTH_EXPIRE            = 2,
  542         IEEE80211_REASON_AUTH_LEAVE             = 3,
  543         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
  544         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
  545         IEEE80211_REASON_NOT_AUTHED             = 6,
  546         IEEE80211_REASON_NOT_ASSOCED            = 7,
  547         IEEE80211_REASON_ASSOC_LEAVE            = 8,
  548         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
  549 
  550         IEEE80211_REASON_RSN_REQUIRED           = 11,
  551         IEEE80211_REASON_RSN_INCONSISTENT       = 12,
  552         IEEE80211_REASON_IE_INVALID             = 13,
  553         IEEE80211_REASON_MIC_FAILURE            = 14,
  554 
  555         IEEE80211_STATUS_SUCCESS                = 0,
  556         IEEE80211_STATUS_UNSPECIFIED            = 1,
  557         IEEE80211_STATUS_CAPINFO                = 10,
  558         IEEE80211_STATUS_NOT_ASSOCED            = 11,
  559         IEEE80211_STATUS_OTHER                  = 12,
  560         IEEE80211_STATUS_ALG                    = 13,
  561         IEEE80211_STATUS_SEQUENCE               = 14,
  562         IEEE80211_STATUS_CHALLENGE              = 15,
  563         IEEE80211_STATUS_TIMEOUT                = 16,
  564         IEEE80211_STATUS_TOOMANY                = 17,
  565         IEEE80211_STATUS_BASIC_RATE             = 18,
  566         IEEE80211_STATUS_SP_REQUIRED            = 19,
  567         IEEE80211_STATUS_PBCC_REQUIRED          = 20,
  568         IEEE80211_STATUS_CA_REQUIRED            = 21,
  569         IEEE80211_STATUS_TOO_MANY_STATIONS      = 22,
  570         IEEE80211_STATUS_RATES                  = 23,
  571         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,
  572         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,
  573 };
  574 
  575 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
  576 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
  577 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
  578 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
  579 #define IEEE80211_WEP_NKID              4       /* number of key ids */
  580 
  581 /*
  582  * 802.11i defines an extended IV for use with non-WEP ciphers.
  583  * When the EXTIV bit is set in the key id byte an additional
  584  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
  585  * EXTIV bit is likewise set but the 8 bytes represent the
  586  * CCMP header rather than IV+extended-IV.
  587  */
  588 #define IEEE80211_WEP_EXTIV             0x20
  589 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
  590 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
  591 
  592 #define IEEE80211_CRC_LEN               4
  593 
  594 /*
  595  * Maximum acceptable MTU is:
  596  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
  597  *              QoS overhead - RSN/WPA overhead
  598  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
  599  * mtu is Ethernet-compatible; it's set by ether_ifattach.
  600  */
  601 #define IEEE80211_MTU_MAX               2290
  602 #define IEEE80211_MTU_MIN               32
  603 
  604 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
  605     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
  606 #define IEEE80211_ACK_LEN \
  607         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
  608 #define IEEE80211_MIN_LEN \
  609         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
  610 
  611 /*
  612  * The 802.11 spec says at most 2007 stations may be
  613  * associated at once.  For most AP's this is way more
  614  * than is feasible so we use a default of 128.  This
  615  * number may be overridden by the driver and/or by
  616  * user configuration.
  617  */
  618 #define IEEE80211_AID_MAX               2007
  619 #define IEEE80211_AID_DEF               128
  620 
  621 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
  622 
  623 /* 
  624  * RTS frame length parameters.  The default is specified in
  625  * the 802.11 spec as 512; we treat it as implementation-dependent
  626  * so it's defined in ieee80211_var.h.  The max may be wrong
  627  * for jumbo frames.
  628  */
  629 #define IEEE80211_RTS_MIN               1
  630 #define IEEE80211_RTS_MAX               2346
  631 
  632 /* 
  633  * TX fragmentation parameters.  As above for RTS, we treat
  634  * default as implementation-dependent so define it elsewhere.
  635  */
  636 #define IEEE80211_FRAG_MIN              256
  637 #define IEEE80211_FRAG_MAX              2346
  638 
  639 #endif /* _NET80211_IEEE80211_H_ */

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