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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2001 Atsushi Onoe
    5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/12.0/sys/net80211/ieee80211.h 326272 2017-11-27 15:23:17Z pfg $
   29  */
   30 #ifndef _NET80211_IEEE80211_H_
   31 #define _NET80211_IEEE80211_H_
   32 
   33 /*
   34  * 802.11 protocol definitions.
   35  */
   36 
   37 #define IEEE80211_ADDR_LEN      6               /* size of 802.11 address */
   38 /* is 802.11 address multicast/broadcast? */
   39 #define IEEE80211_IS_MULTICAST(_a)      (*(_a) & 0x01)
   40 
   41 #ifdef _KERNEL
   42 extern const uint8_t ieee80211broadcastaddr[];
   43 #endif
   44 
   45 typedef uint16_t ieee80211_seq;
   46 
   47 /* IEEE 802.11 PLCP header */
   48 struct ieee80211_plcp_hdr {
   49         uint16_t        i_sfd;
   50         uint8_t         i_signal;
   51         uint8_t         i_service;
   52         uint16_t        i_length;
   53         uint16_t        i_crc;
   54 } __packed;
   55 
   56 #define IEEE80211_PLCP_SFD      0xF3A0 
   57 #define IEEE80211_PLCP_SERVICE  0x00
   58 #define IEEE80211_PLCP_SERVICE_LOCKED   0x04
   59 #define IEEE80211_PLCL_SERVICE_PBCC     0x08
   60 #define IEEE80211_PLCP_SERVICE_LENEXT5  0x20
   61 #define IEEE80211_PLCP_SERVICE_LENEXT6  0x40
   62 #define IEEE80211_PLCP_SERVICE_LENEXT7  0x80
   63 
   64 /*
   65  * generic definitions for IEEE 802.11 frames
   66  */
   67 struct ieee80211_frame {
   68         uint8_t         i_fc[2];
   69         uint8_t         i_dur[2];
   70         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
   71         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
   72         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
   73         uint8_t         i_seq[2];
   74         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   75         /* see below */
   76 } __packed;
   77 
   78 struct ieee80211_qosframe {
   79         uint8_t         i_fc[2];
   80         uint8_t         i_dur[2];
   81         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
   82         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
   83         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
   84         uint8_t         i_seq[2];
   85         uint8_t         i_qos[2];
   86         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
   87         /* see below */
   88 } __packed;
   89 
   90 struct ieee80211_qoscntl {
   91         uint8_t         i_qos[2];
   92 };
   93 
   94 struct ieee80211_frame_addr4 {
   95         uint8_t         i_fc[2];
   96         uint8_t         i_dur[2];
   97         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
   98         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
   99         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  100         uint8_t         i_seq[2];
  101         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
  102 } __packed;
  103 
  104 
  105 struct ieee80211_qosframe_addr4 {
  106         uint8_t         i_fc[2];
  107         uint8_t         i_dur[2];
  108         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  109         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  110         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  111         uint8_t         i_seq[2];
  112         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
  113         uint8_t         i_qos[2];
  114 } __packed;
  115 
  116 #define IEEE80211_FC0_VERSION_MASK              0x03
  117 #define IEEE80211_FC0_VERSION_SHIFT             0
  118 #define IEEE80211_FC0_VERSION_0                 0x00
  119 #define IEEE80211_FC0_TYPE_MASK                 0x0c
  120 #define IEEE80211_FC0_TYPE_SHIFT                2
  121 #define IEEE80211_FC0_TYPE_MGT                  0x00
  122 #define IEEE80211_FC0_TYPE_CTL                  0x04
  123 #define IEEE80211_FC0_TYPE_DATA                 0x08
  124 
  125 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
  126 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
  127 /* for TYPE_MGT */
  128 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
  129 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
  130 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
  131 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
  132 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
  133 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
  134 #define IEEE80211_FC0_SUBTYPE_TIMING_ADV        0x60
  135 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
  136 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
  137 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
  138 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
  139 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
  140 #define IEEE80211_FC0_SUBTYPE_ACTION            0xd0
  141 #define IEEE80211_FC0_SUBTYPE_ACTION_NOACK      0xe0
  142 /* for TYPE_CTL */
  143 #define IEEE80211_FC0_SUBTYPE_CONTROL_WRAP      0x70
  144 #define IEEE80211_FC0_SUBTYPE_BAR               0x80
  145 #define IEEE80211_FC0_SUBTYPE_BA                0x90
  146 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
  147 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
  148 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
  149 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
  150 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
  151 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
  152 /* for TYPE_DATA (bit combination) */
  153 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
  154 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
  155 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
  156 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
  157 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
  158 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
  159 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
  160 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
  161 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
  162 #define IEEE80211_FC0_SUBTYPE_QOS_CFACK         0x90
  163 #define IEEE80211_FC0_SUBTYPE_QOS_CFPOLL        0xa0
  164 #define IEEE80211_FC0_SUBTYPE_QOS_CFACKPOLL     0xb0
  165 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0
  166 
  167 #define IEEE80211_IS_MGMT(wh)                                   \
  168         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  169             == IEEE80211_FC0_TYPE_MGT))
  170 #define IEEE80211_IS_CTL(wh)                                    \
  171         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  172             == IEEE80211_FC0_TYPE_CTL))
  173 #define IEEE80211_IS_DATA(wh)                                   \
  174         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  175             == IEEE80211_FC0_TYPE_DATA))
  176 
  177 #define IEEE80211_FC0_QOSDATA \
  178         (IEEE80211_FC0_TYPE_DATA|IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_VERSION_0)
  179 
  180 #define IEEE80211_IS_QOSDATA(wh) \
  181         ((wh)->i_fc[0] == IEEE80211_FC0_QOSDATA)
  182 
  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  */
  188 
  189 #define IEEE80211_IS_DSTODS(wh) \
  190         (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
  191 
  192 #define IEEE80211_FC1_MORE_FRAG                 0x04
  193 #define IEEE80211_FC1_RETRY                     0x08
  194 #define IEEE80211_FC1_PWR_MGT                   0x10
  195 #define IEEE80211_FC1_MORE_DATA                 0x20
  196 #define IEEE80211_FC1_PROTECTED                 0x40
  197 #define IEEE80211_FC1_ORDER                     0x80
  198 
  199 #define IEEE80211_HAS_SEQ(type, subtype) \
  200         ((type) != IEEE80211_FC0_TYPE_CTL && \
  201         !((type) == IEEE80211_FC0_TYPE_DATA && \
  202          ((subtype) & IEEE80211_FC0_SUBTYPE_QOS_NULL) == \
  203                       IEEE80211_FC0_SUBTYPE_QOS_NULL))
  204 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  205 #define IEEE80211_SEQ_FRAG_SHIFT                0
  206 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  207 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  208 #define IEEE80211_SEQ_RANGE                     4096
  209 
  210 #define IEEE80211_SEQ_ADD(seq, incr) \
  211         (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1))
  212 #define IEEE80211_SEQ_INC(seq)  IEEE80211_SEQ_ADD(seq,1)
  213 #define IEEE80211_SEQ_SUB(a, b) \
  214         (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1))
  215 
  216 #define IEEE80211_SEQ_BA_RANGE                  2048    /* 2^11 */
  217 #define IEEE80211_SEQ_BA_BEFORE(a, b) \
  218         (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1)
  219 
  220 #define IEEE80211_NWID_LEN                      32
  221 #define IEEE80211_MESHID_LEN                    32
  222 
  223 #define IEEE80211_QOS_CTL_LEN                   2
  224 
  225 #define IEEE80211_QOS_TXOP                      0x00ff
  226 /* bit 8 is reserved */
  227 #define IEEE80211_QOS_AMSDU                     0x80
  228 #define IEEE80211_QOS_AMSDU_S                   7
  229 #define IEEE80211_QOS_ACKPOLICY                 0x60
  230 #define IEEE80211_QOS_ACKPOLICY_S               5
  231 #define IEEE80211_QOS_ACKPOLICY_NOACK           0x20    /* No ACK required */
  232 #define IEEE80211_QOS_ACKPOLICY_BA              0x60    /* Block ACK */
  233 #define IEEE80211_QOS_EOSP                      0x10    /* EndOfService Period*/
  234 #define IEEE80211_QOS_EOSP_S                    4
  235 #define IEEE80211_QOS_TID                       0x0f
  236 /* qos[1] byte used for all frames sent by mesh STAs in a mesh BSS */
  237 #define IEEE80211_QOS_MC                        0x01    /* Mesh control */
  238 /* Mesh power save level*/
  239 #define IEEE80211_QOS_MESH_PSL                  0x02
  240 /* Mesh Receiver Service Period Initiated */
  241 #define IEEE80211_QOS_RSPI                      0x04
  242 /* bits 11 to 15 reserved */
  243 
  244 /* does frame have QoS sequence control data */
  245 #define IEEE80211_QOS_HAS_SEQ(wh) \
  246         (((wh)->i_fc[0] & \
  247           (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
  248           (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
  249 
  250 /*
  251  * WME/802.11e information element.
  252  */
  253 struct ieee80211_wme_info {
  254         uint8_t         wme_id;         /* IEEE80211_ELEMID_VENDOR */
  255         uint8_t         wme_len;        /* length in bytes */
  256         uint8_t         wme_oui[3];     /* 0x00, 0x50, 0xf2 */
  257         uint8_t         wme_type;       /* OUI type */
  258         uint8_t         wme_subtype;    /* OUI subtype */
  259         uint8_t         wme_version;    /* spec revision */
  260         uint8_t         wme_info;       /* QoS info */
  261 } __packed;
  262 
  263 /*
  264  * WME/802.11e Tspec Element
  265  */
  266 struct ieee80211_wme_tspec {
  267         uint8_t         ts_id;
  268         uint8_t         ts_len;
  269         uint8_t         ts_oui[3];
  270         uint8_t         ts_oui_type;
  271         uint8_t         ts_oui_subtype;
  272         uint8_t         ts_version;
  273         uint8_t         ts_tsinfo[3];
  274         uint8_t         ts_nom_msdu[2];
  275         uint8_t         ts_max_msdu[2];
  276         uint8_t         ts_min_svc[4];
  277         uint8_t         ts_max_svc[4];
  278         uint8_t         ts_inactv_intv[4];
  279         uint8_t         ts_susp_intv[4];
  280         uint8_t         ts_start_svc[4];
  281         uint8_t         ts_min_rate[4];
  282         uint8_t         ts_mean_rate[4];
  283         uint8_t         ts_max_burst[4];
  284         uint8_t         ts_min_phy[4];
  285         uint8_t         ts_peak_rate[4];
  286         uint8_t         ts_delay[4];
  287         uint8_t         ts_surplus[2];
  288         uint8_t         ts_medium_time[2];
  289 } __packed;
  290 
  291 /*
  292  * WME AC parameter field
  293  */
  294 struct ieee80211_wme_acparams {
  295         uint8_t         acp_aci_aifsn;
  296         uint8_t         acp_logcwminmax;
  297         uint16_t        acp_txop;
  298 } __packed;
  299 
  300 #define WME_NUM_AC              4       /* 4 AC categories */
  301 #define WME_NUM_TID             16      /* 16 tids */
  302 
  303 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
  304 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
  305 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
  306 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
  307 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
  308 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
  309 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
  310 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
  311 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
  312 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
  313 
  314 #define WME_AC_TO_TID(_ac) (       \
  315         ((_ac) == WME_AC_VO) ? 6 : \
  316         ((_ac) == WME_AC_VI) ? 5 : \
  317         ((_ac) == WME_AC_BK) ? 1 : \
  318         0)
  319 
  320 #define TID_TO_WME_AC(_tid) (      \
  321         ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \
  322         ((_tid) < 3) ? WME_AC_BK : \
  323         ((_tid) < 6) ? WME_AC_VI : \
  324         WME_AC_VO)
  325 
  326 /*
  327  * WME Parameter Element
  328  */
  329 struct ieee80211_wme_param {
  330         uint8_t         param_id;
  331         uint8_t         param_len;
  332         uint8_t         param_oui[3];
  333         uint8_t         param_oui_type;
  334         uint8_t         param_oui_subtype;
  335         uint8_t         param_version;
  336         uint8_t         param_qosInfo;
  337 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
  338         uint8_t         param_reserved;
  339         struct ieee80211_wme_acparams   params_acParams[WME_NUM_AC];
  340 } __packed;
  341 
  342 /*
  343  * WME U-APSD qos info field defines
  344  */
  345 #define WME_CAPINFO_UAPSD_EN                    0x00000080
  346 #define WME_CAPINFO_UAPSD_VO                    0x00000001
  347 #define WME_CAPINFO_UAPSD_VI                    0x00000002
  348 #define WME_CAPINFO_UAPSD_BK                    0x00000004
  349 #define WME_CAPINFO_UAPSD_BE                    0x00000008
  350 #define WME_CAPINFO_UAPSD_ACFLAGS_SHIFT         0
  351 #define WME_CAPINFO_UAPSD_ACFLAGS_MASK          0xF
  352 #define WME_CAPINFO_UAPSD_MAXSP_SHIFT           5
  353 #define WME_CAPINFO_UAPSD_MAXSP_MASK            0x3
  354 #define WME_CAPINFO_IE_OFFSET                   8
  355 #define WME_UAPSD_MAXSP(_qosinfo)                               \
  356             (((_qosinfo) >> WME_CAPINFO_UAPSD_MAXSP_SHIFT) &    \
  357             WME_CAPINFO_UAPSD_MAXSP_MASK)
  358 #define WME_UAPSD_AC_ENABLED(_ac, _qosinfo)                     \
  359             ((1 << (3 - (_ac))) & (                             \
  360             ((_qosinfo) >> WME_CAPINFO_UAPSD_ACFLAGS_SHIFT) &   \
  361             WME_CAPINFO_UAPSD_ACFLAGS_MASK))
  362 
  363 /*
  364  * Management Notification Frame
  365  */
  366 struct ieee80211_mnf {
  367         uint8_t         mnf_category;
  368         uint8_t         mnf_action;
  369         uint8_t         mnf_dialog;
  370         uint8_t         mnf_status;
  371 } __packed;
  372 #define MNF_SETUP_REQ   0
  373 #define MNF_SETUP_RESP  1
  374 #define MNF_TEARDOWN    2
  375 
  376 /* 
  377  * 802.11n Management Action Frames 
  378  */
  379 /* generic frame format */
  380 struct ieee80211_action {
  381         uint8_t         ia_category;
  382         uint8_t         ia_action;
  383 } __packed;
  384 
  385 #define IEEE80211_ACTION_CAT_SM         0       /* Spectrum Management */
  386 #define IEEE80211_ACTION_CAT_QOS        1       /* QoS */
  387 #define IEEE80211_ACTION_CAT_DLS        2       /* DLS */
  388 #define IEEE80211_ACTION_CAT_BA         3       /* BA */
  389 #define IEEE80211_ACTION_CAT_HT         7       /* HT */
  390 #define IEEE80211_ACTION_CAT_MESH       13      /* Mesh */
  391 #define IEEE80211_ACTION_CAT_SELF_PROT  15      /* Self-protected */
  392 /* 16 - 125 reserved */
  393 #define IEEE80211_ACTION_CAT_VHT        21
  394 #define IEEE80211_ACTION_CAT_VENDOR     127     /* Vendor Specific */
  395 
  396 #define IEEE80211_ACTION_HT_TXCHWIDTH   0       /* recommended xmit chan width*/
  397 #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1       /* MIMO power save */
  398 
  399 /* HT - recommended transmission channel width */
  400 struct ieee80211_action_ht_txchwidth {
  401         struct ieee80211_action at_header;
  402         uint8_t         at_chwidth;     
  403 } __packed;
  404 
  405 #define IEEE80211_A_HT_TXCHWIDTH_20     0
  406 #define IEEE80211_A_HT_TXCHWIDTH_2040   1
  407 
  408 /* HT - MIMO Power Save (NB: D2.04) */
  409 struct ieee80211_action_ht_mimopowersave {
  410         struct ieee80211_action am_header;
  411         uint8_t         am_control;
  412 } __packed;
  413 
  414 #define IEEE80211_A_HT_MIMOPWRSAVE_ENA          0x01    /* PS enabled */
  415 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE         0x02
  416 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S       1
  417 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC      0x02    /* Dynamic Mode */
  418 #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC       0x00    /* no SM packets */
  419 /* bits 2-7 reserved */
  420 
  421 /* Block Ack actions */
  422 #define IEEE80211_ACTION_BA_ADDBA_REQUEST       0   /* ADDBA request */
  423 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE      1   /* ADDBA response */
  424 #define IEEE80211_ACTION_BA_DELBA               2   /* DELBA */
  425 
  426 /* Block Ack Parameter Set */
  427 #define IEEE80211_BAPS_BUFSIZ   0xffc0          /* buffer size */
  428 #define IEEE80211_BAPS_BUFSIZ_S 6
  429 #define IEEE80211_BAPS_TID      0x003c          /* TID */
  430 #define IEEE80211_BAPS_TID_S    2
  431 #define IEEE80211_BAPS_POLICY   0x0002          /* block ack policy */
  432 #define IEEE80211_BAPS_POLICY_S 1
  433 
  434 #define IEEE80211_BAPS_POLICY_DELAYED   (0<<IEEE80211_BAPS_POLICY_S)
  435 #define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S)
  436 
  437 /* Block Ack Sequence Control */
  438 #define IEEE80211_BASEQ_START   0xfff0          /* starting seqnum */
  439 #define IEEE80211_BASEQ_START_S 4
  440 #define IEEE80211_BASEQ_FRAG    0x000f          /* fragment number */
  441 #define IEEE80211_BASEQ_FRAG_S  0
  442 
  443 /* Delayed Block Ack Parameter Set */
  444 #define IEEE80211_DELBAPS_TID   0xf000          /* TID */
  445 #define IEEE80211_DELBAPS_TID_S 12
  446 #define IEEE80211_DELBAPS_INIT  0x0800          /* initiator */
  447 #define IEEE80211_DELBAPS_INIT_S 11
  448 
  449 /* BA - ADDBA request */
  450 struct ieee80211_action_ba_addbarequest {
  451         struct ieee80211_action rq_header;
  452         uint8_t         rq_dialogtoken;
  453         uint16_t        rq_baparamset;
  454         uint16_t        rq_batimeout;           /* in TUs */
  455         uint16_t        rq_baseqctl;
  456 } __packed;
  457 
  458 /* BA - ADDBA response */
  459 struct ieee80211_action_ba_addbaresponse {
  460         struct ieee80211_action rs_header;
  461         uint8_t         rs_dialogtoken;
  462         uint16_t        rs_statuscode;
  463         uint16_t        rs_baparamset; 
  464         uint16_t        rs_batimeout;           /* in TUs */
  465 } __packed;
  466 
  467 /* BA - DELBA */
  468 struct ieee80211_action_ba_delba {
  469         struct ieee80211_action dl_header;
  470         uint16_t        dl_baparamset;
  471         uint16_t        dl_reasoncode;
  472 } __packed;
  473 
  474 /* BAR Control */
  475 #define IEEE80211_BAR_TID       0xf000          /* TID */
  476 #define IEEE80211_BAR_TID_S     12
  477 #define IEEE80211_BAR_COMP      0x0004          /* Compressed Bitmap */
  478 #define IEEE80211_BAR_MTID      0x0002          /* Multi-TID */
  479 #define IEEE80211_BAR_NOACK     0x0001          /* No-Ack policy */
  480 
  481 /* BAR Starting Sequence Control */
  482 #define IEEE80211_BAR_SEQ_START 0xfff0          /* starting seqnum */
  483 #define IEEE80211_BAR_SEQ_START_S       4
  484 
  485 struct ieee80211_ba_request {
  486         uint16_t        rq_barctl;
  487         uint16_t        rq_barseqctl;
  488 } __packed;
  489 
  490 /*
  491  * Control frames.
  492  */
  493 struct ieee80211_frame_min {
  494         uint8_t         i_fc[2];
  495         uint8_t         i_dur[2];
  496         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  497         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  498         /* FCS */
  499 } __packed;
  500 
  501 struct ieee80211_frame_rts {
  502         uint8_t         i_fc[2];
  503         uint8_t         i_dur[2];
  504         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  505         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  506         /* FCS */
  507 } __packed;
  508 
  509 struct ieee80211_frame_cts {
  510         uint8_t         i_fc[2];
  511         uint8_t         i_dur[2];
  512         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  513         /* FCS */
  514 } __packed;
  515 
  516 struct ieee80211_frame_ack {
  517         uint8_t         i_fc[2];
  518         uint8_t         i_dur[2];
  519         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  520         /* FCS */
  521 } __packed;
  522 
  523 struct ieee80211_frame_pspoll {
  524         uint8_t         i_fc[2];
  525         uint8_t         i_aid[2];
  526         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
  527         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  528         /* FCS */
  529 } __packed;
  530 
  531 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
  532         uint8_t         i_fc[2];
  533         uint8_t         i_dur[2];       /* should be zero */
  534         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  535         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
  536         /* FCS */
  537 } __packed;
  538 
  539 struct ieee80211_frame_bar {
  540         uint8_t         i_fc[2];
  541         uint8_t         i_dur[2];
  542         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  543         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  544         uint16_t        i_ctl;
  545         uint16_t        i_seq;
  546         /* FCS */
  547 } __packed;
  548 
  549 /*
  550  * BEACON management packets
  551  *
  552  *      octet timestamp[8]
  553  *      octet beacon interval[2]
  554  *      octet capability information[2]
  555  *      information element
  556  *              octet elemid
  557  *              octet length
  558  *              octet information[length]
  559  */
  560 
  561 #define IEEE80211_BEACON_INTERVAL(beacon) \
  562         ((beacon)[8] | ((beacon)[9] << 8))
  563 #define IEEE80211_BEACON_CAPABILITY(beacon) \
  564         ((beacon)[10] | ((beacon)[11] << 8))
  565 
  566 #define IEEE80211_CAPINFO_ESS                   0x0001
  567 #define IEEE80211_CAPINFO_IBSS                  0x0002
  568 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  569 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  570 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  571 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  572 #define IEEE80211_CAPINFO_PBCC                  0x0040
  573 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  574 #define IEEE80211_CAPINFO_SPECTRUM_MGMT         0x0100
  575 /* bit 9 is reserved */
  576 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  577 #define IEEE80211_CAPINFO_RSN                   0x0800
  578 /* bit 12 is reserved */
  579 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  580 /* bits 14-15 are reserved */
  581 
  582 #define IEEE80211_CAPINFO_BITS \
  583         "\2\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \
  584         "\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \
  585         "\16DSSOFDM"
  586 
  587 /*
  588  * 802.11i/WPA information element (maximally sized).
  589  */
  590 struct ieee80211_ie_wpa {
  591         uint8_t         wpa_id;         /* IEEE80211_ELEMID_VENDOR */
  592         uint8_t         wpa_len;        /* length in bytes */
  593         uint8_t         wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
  594         uint8_t         wpa_type;       /* OUI type */
  595         uint16_t        wpa_version;    /* spec revision */
  596         uint32_t        wpa_mcipher[1]; /* multicast/group key cipher */
  597         uint16_t        wpa_uciphercnt; /* # pairwise key ciphers */
  598         uint32_t        wpa_uciphers[8];/* ciphers */
  599         uint16_t        wpa_authselcnt; /* authentication selector cnt*/
  600         uint32_t        wpa_authsels[8];/* selectors */
  601         uint16_t        wpa_caps;       /* 802.11i capabilities */
  602         uint16_t        wpa_pmkidcnt;   /* 802.11i pmkid count */
  603         uint16_t        wpa_pmkids[8];  /* 802.11i pmkids */
  604 } __packed;
  605 
  606 /*
  607  * 802.11n HT Capability IE
  608  * NB: these reflect D1.10 
  609  */
  610 struct ieee80211_ie_htcap {
  611         uint8_t         hc_id;                  /* element ID */
  612         uint8_t         hc_len;                 /* length in bytes */
  613         uint16_t        hc_cap;                 /* HT caps (see below) */
  614         uint8_t         hc_param;               /* HT params (see below) */
  615         uint8_t         hc_mcsset[16];          /* supported MCS set */
  616         uint16_t        hc_extcap;              /* extended HT capabilities */
  617         uint32_t        hc_txbf;                /* txbf capabilities */
  618         uint8_t         hc_antenna;             /* antenna capabilities */
  619 } __packed;
  620 
  621 /* HT capability flags (ht_cap) */
  622 #define IEEE80211_HTCAP_LDPC            0x0001  /* LDPC rx supported */
  623 #define IEEE80211_HTCAP_CHWIDTH40       0x0002  /* 20/40 supported */
  624 #define IEEE80211_HTCAP_SMPS            0x000c  /* SM Power Save mode */
  625 #define IEEE80211_HTCAP_SMPS_OFF        0x000c  /* disabled */
  626 #define IEEE80211_HTCAP_SMPS_DYNAMIC    0x0004  /* send RTS first */
  627 /* NB: SMPS value 2 is reserved */
  628 #define IEEE80211_HTCAP_SMPS_ENA        0x0000  /* enabled (static mode) */
  629 #define IEEE80211_HTCAP_GREENFIELD      0x0010  /* Greenfield supported */
  630 #define IEEE80211_HTCAP_SHORTGI20       0x0020  /* Short GI in 20MHz */
  631 #define IEEE80211_HTCAP_SHORTGI40       0x0040  /* Short GI in 40MHz */
  632 #define IEEE80211_HTCAP_TXSTBC          0x0080  /* STBC tx ok */
  633 #define IEEE80211_HTCAP_RXSTBC          0x0300  /* STBC rx support */
  634 #define IEEE80211_HTCAP_RXSTBC_S        8
  635 #define IEEE80211_HTCAP_RXSTBC_1STREAM  0x0100  /* 1 spatial stream */
  636 #define IEEE80211_HTCAP_RXSTBC_2STREAM  0x0200  /* 1-2 spatial streams*/
  637 #define IEEE80211_HTCAP_RXSTBC_3STREAM  0x0300  /* 1-3 spatial streams*/
  638 #define IEEE80211_HTCAP_DELBA           0x0400  /* HT DELBA supported */
  639 #define IEEE80211_HTCAP_MAXAMSDU        0x0800  /* max A-MSDU length */
  640 #define IEEE80211_HTCAP_MAXAMSDU_7935   0x0800  /* 7935 octets */
  641 #define IEEE80211_HTCAP_MAXAMSDU_3839   0x0000  /* 3839 octets */
  642 #define IEEE80211_HTCAP_DSSSCCK40       0x1000  /* DSSS/CCK in 40MHz */
  643 #define IEEE80211_HTCAP_PSMP            0x2000  /* PSMP supported */
  644 #define IEEE80211_HTCAP_40INTOLERANT    0x4000  /* 40MHz intolerant */
  645 #define IEEE80211_HTCAP_LSIGTXOPPROT    0x8000  /* L-SIG TXOP prot */
  646 
  647 #define IEEE80211_HTCAP_BITS \
  648         "\2\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
  649         "\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \
  650         "\20LSIGTXOPPROT"
  651 
  652 /* HT parameters (hc_param) */
  653 #define IEEE80211_HTCAP_MAXRXAMPDU      0x03    /* max rx A-MPDU factor */
  654 #define IEEE80211_HTCAP_MAXRXAMPDU_S    0
  655 #define IEEE80211_HTCAP_MAXRXAMPDU_8K   0
  656 #define IEEE80211_HTCAP_MAXRXAMPDU_16K  1
  657 #define IEEE80211_HTCAP_MAXRXAMPDU_32K  2
  658 #define IEEE80211_HTCAP_MAXRXAMPDU_64K  3
  659 #define IEEE80211_HTCAP_MPDUDENSITY     0x1c    /* min MPDU start spacing */
  660 #define IEEE80211_HTCAP_MPDUDENSITY_S   2
  661 #define IEEE80211_HTCAP_MPDUDENSITY_NA  0       /* no time restriction */
  662 #define IEEE80211_HTCAP_MPDUDENSITY_025 1       /* 1/4 us */
  663 #define IEEE80211_HTCAP_MPDUDENSITY_05  2       /* 1/2 us */
  664 #define IEEE80211_HTCAP_MPDUDENSITY_1   3       /* 1 us */
  665 #define IEEE80211_HTCAP_MPDUDENSITY_2   4       /* 2 us */
  666 #define IEEE80211_HTCAP_MPDUDENSITY_4   5       /* 4 us */
  667 #define IEEE80211_HTCAP_MPDUDENSITY_8   6       /* 8 us */
  668 #define IEEE80211_HTCAP_MPDUDENSITY_16  7       /* 16 us */
  669 
  670 /* HT extended capabilities (hc_extcap) */
  671 #define IEEE80211_HTCAP_PCO             0x0001  /* PCO capable */
  672 #define IEEE80211_HTCAP_PCOTRANS        0x0006  /* PCO transition time */
  673 #define IEEE80211_HTCAP_PCOTRANS_S      1
  674 #define IEEE80211_HTCAP_PCOTRANS_04     0x0002  /* 400 us */
  675 #define IEEE80211_HTCAP_PCOTRANS_15     0x0004  /* 1.5 ms */
  676 #define IEEE80211_HTCAP_PCOTRANS_5      0x0006  /* 5 ms */
  677 /* bits 3-7 reserved */
  678 #define IEEE80211_HTCAP_MCSFBACK        0x0300  /* MCS feedback */
  679 #define IEEE80211_HTCAP_MCSFBACK_S      8
  680 #define IEEE80211_HTCAP_MCSFBACK_NONE   0x0000  /* nothing provided */
  681 #define IEEE80211_HTCAP_MCSFBACK_UNSOL  0x0200  /* unsolicited feedback */
  682 #define IEEE80211_HTCAP_MCSFBACK_MRQ    0x0300  /* " "+respond to MRQ */
  683 #define IEEE80211_HTCAP_HTC             0x0400  /* +HTC support */
  684 #define IEEE80211_HTCAP_RDR             0x0800  /* reverse direction responder*/
  685 /* bits 12-15 reserved */
  686 
  687 /*
  688  * 802.11n HT Information IE
  689  */
  690 struct ieee80211_ie_htinfo {
  691         uint8_t         hi_id;                  /* element ID */
  692         uint8_t         hi_len;                 /* length in bytes */
  693         uint8_t         hi_ctrlchannel;         /* primary channel */
  694         uint8_t         hi_byte1;               /* ht ie byte 1 */
  695         uint8_t         hi_byte2;               /* ht ie byte 2 */
  696         uint8_t         hi_byte3;               /* ht ie byte 3 */
  697         uint16_t        hi_byte45;              /* ht ie bytes 4+5 */
  698         uint8_t         hi_basicmcsset[16];     /* basic MCS set */
  699 } __packed;
  700 
  701 /* byte1 */
  702 #define IEEE80211_HTINFO_2NDCHAN        0x03    /* secondary/ext chan offset */
  703 #define IEEE80211_HTINFO_2NDCHAN_S      0
  704 #define IEEE80211_HTINFO_2NDCHAN_NONE   0x00    /* no secondary/ext channel */
  705 #define IEEE80211_HTINFO_2NDCHAN_ABOVE  0x01    /* above private channel */
  706 /* NB: 2 is reserved */
  707 #define IEEE80211_HTINFO_2NDCHAN_BELOW  0x03    /* below primary channel */ 
  708 #define IEEE80211_HTINFO_TXWIDTH        0x04    /* tx channel width */
  709 #define IEEE80211_HTINFO_TXWIDTH_20     0x00    /* 20MHz width */
  710 #define IEEE80211_HTINFO_TXWIDTH_2040   0x04    /* any supported width */
  711 #define IEEE80211_HTINFO_RIFSMODE       0x08    /* Reduced IFS (RIFS) use */
  712 #define IEEE80211_HTINFO_RIFSMODE_PROH  0x00    /* RIFS use prohibited */
  713 #define IEEE80211_HTINFO_RIFSMODE_PERM  0x08    /* RIFS use permitted */
  714 #define IEEE80211_HTINFO_PMSPONLY       0x10    /* PSMP required to associate */
  715 #define IEEE80211_HTINFO_SIGRAN         0xe0    /* shortest Service Interval */
  716 #define IEEE80211_HTINFO_SIGRAN_S       5
  717 #define IEEE80211_HTINFO_SIGRAN_5       0x00    /* 5 ms */
  718 /* XXX add rest */
  719 
  720 /* bytes 2+3 */
  721 #define IEEE80211_HTINFO_OPMODE         0x03    /* operating mode */
  722 #define IEEE80211_HTINFO_OPMODE_S       0
  723 #define IEEE80211_HTINFO_OPMODE_PURE    0x00    /* no protection */
  724 #define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01    /* protection optional */
  725 #define IEEE80211_HTINFO_OPMODE_HT20PR  0x02    /* protection for HT20 sta's */
  726 #define IEEE80211_HTINFO_OPMODE_MIXED   0x03    /* protection for legacy sta's*/
  727 #define IEEE80211_HTINFO_NONGF_PRESENT  0x04    /* non-GF sta's present */
  728 #define IEEE80211_HTINFO_TXBL           0x08    /* transmit burst limit */
  729 #define IEEE80211_HTINFO_NONHT_PRESENT  0x10    /* non-HT sta's present */
  730 /* bits 5-15 reserved */
  731 
  732 /* bytes 4+5 */
  733 #define IEEE80211_HTINFO_2NDARYBEACON   0x01
  734 #define IEEE80211_HTINFO_LSIGTXOPPROT   0x02
  735 #define IEEE80211_HTINFO_PCO_ACTIVE     0x04
  736 #define IEEE80211_HTINFO_40MHZPHASE     0x08
  737 
  738 /* byte5 */
  739 #define IEEE80211_HTINFO_BASIC_STBCMCS  0x7f
  740 #define IEEE80211_HTINFO_BASIC_STBCMCS_S 0
  741 #define IEEE80211_HTINFO_DUALPROTECTED  0x80
  742 
  743 
  744 /*
  745  * 802.11ac definitions - 802.11ac-2013 .
  746  */
  747 
  748 /*
  749  * Maximum length of A-MPDU that the STA can RX in VHT.
  750  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
  751  */
  752 #define IEEE80211_VHTCAP_MAX_AMPDU_8K           0
  753 #define IEEE80211_VHTCAP_MAX_AMPDU_16K          1
  754 #define IEEE80211_VHTCAP_MAX_AMPDU_32K          2
  755 #define IEEE80211_VHTCAP_MAX_AMPDU_64K          3
  756 #define IEEE80211_VHTCAP_MAX_AMPDU_128K         4
  757 #define IEEE80211_VHTCAP_MAX_AMPDU_256K         5
  758 #define IEEE80211_VHTCAP_MAX_AMPDU_512K         6
  759 #define IEEE80211_VHTCAP_MAX_AMPDU_1024K        7
  760 
  761 /*
  762  * VHT MCS information.
  763  * + rx_highest/tx_highest: optional; maximum long GI VHT PPDU
  764  *    data rate.  1Mbit/sec units.
  765  * + rx_mcs_map/tx_mcs_map: bitmap of per-stream supported MCS;
  766  *    2 bits each.
  767  */
  768 #define IEEE80211_VHT_MCS_SUPPORT_0_7           0       /* MCS0-7 */
  769 #define IEEE80211_VHT_MCS_SUPPORT_0_8           1       /* MCS0-8 */
  770 #define IEEE80211_VHT_MCS_SUPPORT_0_9           2       /* MCS0-9 */
  771 #define IEEE80211_VHT_MCS_NOT_SUPPORTED         3       /* not supported */
  772 
  773 struct ieee80211_vht_mcs_info {
  774         uint16_t rx_mcs_map;
  775         uint16_t rx_highest;
  776         uint16_t tx_mcs_map;
  777         uint16_t tx_highest;
  778 } __packed;
  779 
  780 /* VHT capabilities element: 802.11ac-2013 8.4.2.160 */
  781 struct ieee80211_ie_vhtcap {
  782         uint8_t ie;
  783         uint8_t len;
  784         uint32_t vht_cap_info;
  785         struct ieee80211_vht_mcs_info supp_mcs;
  786 } __packed;
  787 
  788 /* VHT operation mode subfields - 802.11ac-2013 Table 8.183x */
  789 #define IEEE80211_VHT_CHANWIDTH_USE_HT          0       /* Use HT IE for chw */
  790 #define IEEE80211_VHT_CHANWIDTH_80MHZ           1       /* 80MHz */
  791 #define IEEE80211_VHT_CHANWIDTH_160MHZ          2       /* 160MHz */
  792 #define IEEE80211_VHT_CHANWIDTH_80P80MHZ        3       /* 80+80MHz */
  793 
  794 /* VHT operation IE - 802.11ac-2013 8.4.2.161 */
  795 struct ieee80211_ie_vht_operation {
  796         uint8_t ie;
  797         uint8_t len;
  798         uint8_t chan_width;
  799         uint8_t center_freq_seg1_idx;
  800         uint8_t center_freq_seg2_idx;
  801         uint16_t basic_mcs_set;
  802 } __packed;
  803 
  804 /* 802.11ac VHT Capabilities */
  805 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_3895   0x00000000
  806 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_7991   0x00000001
  807 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_11454  0x00000002
  808 #define IEEE80211_VHTCAP_MAX_MPDU_MASK          0x00000003
  809 #define IEEE80211_VHTCAP_MAX_MPDU_MASK_S        0
  810 
  811 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK   0x0000000C
  812 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK_S 2
  813 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_NONE           0
  814 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ         1
  815 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80P80MHZ   2
  816 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_RESERVED       3
  817 
  818 #define IEEE80211_VHTCAP_RXLDPC         0x00000010
  819 #define IEEE80211_VHTCAP_RXLDPC_S       4
  820 
  821 #define IEEE80211_VHTCAP_SHORT_GI_80            0x00000020
  822 #define IEEE80211_VHTCAP_SHORT_GI_80_S          5
  823 
  824 #define IEEE80211_VHTCAP_SHORT_GI_160           0x00000040
  825 #define IEEE80211_VHTCAP_SHORT_GI_160_S         6
  826 
  827 #define IEEE80211_VHTCAP_TXSTBC         0x00000080
  828 #define IEEE80211_VHTCAP_TXSTBC_S       7
  829 
  830 #define IEEE80211_VHTCAP_RXSTBC_1               0x00000100
  831 #define IEEE80211_VHTCAP_RXSTBC_2               0x00000200
  832 #define IEEE80211_VHTCAP_RXSTBC_3               0x00000300
  833 #define IEEE80211_VHTCAP_RXSTBC_4               0x00000400
  834 #define IEEE80211_VHTCAP_RXSTBC_MASK            0x00000700
  835 #define IEEE80211_VHTCAP_RXSTBC_MASK_S          8
  836 
  837 #define IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE  0x00000800
  838 #define IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE_S        11
  839 
  840 #define IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE  0x00001000
  841 #define IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE_S        12
  842 
  843 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT   13
  844 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK \
  845             (7 << IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT)
  846 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK_S  13
  847 
  848 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT      16
  849 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK \
  850             (7 << IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT)
  851 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK_S     16
  852 
  853 #define IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE  0x00080000
  854 #define IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE_S        19
  855 #define IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE  0x00100000
  856 #define IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE_S        20
  857 #define IEEE80211_VHTCAP_VHT_TXOP_PS            0x00200000
  858 #define IEEE80211_VHTCAP_VHT_TXOP_PS_S          21
  859 #define IEEE80211_VHTCAP_HTC_VHT                0x00400000
  860 #define IEEE80211_VHTCAP_HTC_VHT_S              22
  861 
  862 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT       23
  863 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
  864             (7 << IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
  865 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK_S      23
  866 
  867 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK   0x0c000000
  868 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB      0x08000000
  869 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB        0x0c000000
  870 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK_S 26
  871 
  872 #define IEEE80211_VHTCAP_RX_ANTENNA_PATTERN     0x10000000
  873 #define IEEE80211_VHTCAP_RX_ANTENNA_PATTERN_S   28
  874 #define IEEE80211_VHTCAP_TX_ANTENNA_PATTERN     0x20000000
  875 #define IEEE80211_VHTCAP_TX_ANTENNA_PATTERN_S   29
  876 
  877 /*
  878  * XXX TODO: add the rest of the bits
  879  */
  880 #define IEEE80211_VHTCAP_BITS \
  881         "\2\1MPDU7991\2MPDU11454\3CHAN160\4CHAN8080\5RXLDPC\6SHORTGI80" \
  882         "\7SHORTGI160\10RXSTBC1\11RXSTBC2\12RXSTBC3\13RXSTBC4\14BFERCAP" \
  883         "\15BFEECAP\27VHT\37RXANTPTN\40TXANTPTN"
  884 
  885 /*
  886  * VHT Transmit Power Envelope element - 802.11ac-2013 8.4.2.164
  887  *
  888  * This defines the maximum transmit power for various bandwidths.
  889  */
  890 /*
  891  * Count is how many elements follow and what they're for:
  892  *
  893  * 0 - 20 MHz
  894  * 1 - 20+40 MHz
  895  * 2 - 20+40+80 MHz
  896  * 3 - 20+40+80+(160, 80+80) MHz
  897  */
  898 #define IEEE80211_VHT_TXPWRENV_INFO_COUNT_SHIFT 0
  899 #define IEEE80211_VHT_TXPWRENV_INFO_COUNT_MASK  0x07
  900 
  901 /*
  902  * Unit is the tx power representation.  It should be EIRP for now;
  903  * other values are reserved.
  904  */
  905 #define IEEE80211_VHT_TXPWRENV_UNIT_MASK        0x38
  906 #define IEEE80211_VHT_TXPWRENV_UNIT_SHIFT       3
  907 
  908 /* This value is within the unit mask/shift above */
  909 #define IEEE80211_VHT_TXPWRENV_UNIT_EIRP        0
  910 
  911 struct ieee80211_ie_vht_txpwrenv {
  912         uint8_t ie;
  913         uint8_t len;
  914         uint8_t tx_info;
  915         int8_t tx_elem[0];      /* TX power elements, 1/2 dB, signed */
  916 };
  917 
  918 /* VHT action codes */
  919 #define WLAN_ACTION_VHT_COMPRESSED_BF           0
  920 #define WLAN_ACTION_VHT_GROUPID_MGMT            1
  921 #define WLAN_ACTION_VHT_OPMODE_NOTIF            2
  922 
  923 /*
  924  * Management information element payloads.
  925  */
  926 
  927 enum {
  928         IEEE80211_ELEMID_SSID           = 0,
  929         IEEE80211_ELEMID_RATES          = 1,
  930         IEEE80211_ELEMID_FHPARMS        = 2,
  931         IEEE80211_ELEMID_DSPARMS        = 3,
  932         IEEE80211_ELEMID_CFPARMS        = 4,
  933         IEEE80211_ELEMID_TIM            = 5,
  934         IEEE80211_ELEMID_IBSSPARMS      = 6,
  935         IEEE80211_ELEMID_COUNTRY        = 7,
  936         IEEE80211_ELEMID_BSSLOAD        = 11,
  937         IEEE80211_ELEMID_TSPEC          = 13,
  938         IEEE80211_ELEMID_TCLAS          = 14,
  939         IEEE80211_ELEMID_CHALLENGE      = 16,
  940         /* 17-31 reserved for challenge text extension */
  941         IEEE80211_ELEMID_PWRCNSTR       = 32,
  942         IEEE80211_ELEMID_PWRCAP         = 33,
  943         IEEE80211_ELEMID_TPCREQ         = 34,
  944         IEEE80211_ELEMID_TPCREP         = 35,
  945         IEEE80211_ELEMID_SUPPCHAN       = 36,
  946         IEEE80211_ELEMID_CSA            = 37,
  947         IEEE80211_ELEMID_MEASREQ        = 38,
  948         IEEE80211_ELEMID_MEASREP        = 39,
  949         IEEE80211_ELEMID_QUIET          = 40,
  950         IEEE80211_ELEMID_IBSSDFS        = 41,
  951         IEEE80211_ELEMID_ERP            = 42,
  952         IEEE80211_ELEMID_HTCAP          = 45,
  953         IEEE80211_ELEMID_QOS            = 46,
  954         IEEE80211_ELEMID_RSN            = 48,
  955         IEEE80211_ELEMID_XRATES         = 50,
  956         IEEE80211_ELEMID_APCHANREP      = 51,
  957         IEEE80211_ELEMID_HTINFO         = 61,
  958         IEEE80211_ELEMID_SECCHAN_OFFSET = 62,
  959         IEEE80211_ELEMID_RRM_ENACAPS    = 70,
  960         IEEE80211_ELEMID_MULTIBSSID     = 71,
  961         IEEE80211_ELEMID_COEX_2040      = 72,
  962         IEEE80211_ELEMID_INTOL_CHN_REPORT       = 73,
  963         IEEE80211_ELEMID_OVERLAP_BSS_SCAN_PARAM = 74,
  964         IEEE80211_ELEMID_TSF_REQ        = 91,
  965         IEEE80211_ELEMID_TSF_RESP       = 92,
  966         IEEE80211_ELEMID_WNM_SLEEP_MODE = 93,
  967         IEEE80211_ELEMID_TIM_BCAST_REQ  = 94,
  968         IEEE80211_ELEMID_TIM_BCAST_RESP = 95,
  969         IEEE80211_ELEMID_TPC            = 150,
  970         IEEE80211_ELEMID_CCKM           = 156,
  971         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
  972 
  973         /*
  974          * 802.11s IEs
  975          * NB: On vanilla Linux still IEEE80211_ELEMID_MESHPEER = 55,
  976          * but they defined a new with id 117 called PEER_MGMT.
  977          * NB: complies with open80211
  978          */
  979         IEEE80211_ELEMID_MESHCONF       = 113,
  980         IEEE80211_ELEMID_MESHID         = 114,
  981         IEEE80211_ELEMID_MESHLINK       = 115,
  982         IEEE80211_ELEMID_MESHCNGST      = 116,
  983         IEEE80211_ELEMID_MESHPEER       = 117,
  984         IEEE80211_ELEMID_MESHCSA        = 118,
  985         IEEE80211_ELEMID_MESHTIM        = 39, /* XXX: remove */
  986         IEEE80211_ELEMID_MESHAWAKEW     = 119,
  987         IEEE80211_ELEMID_MESHBEACONT    = 120,
  988         /* 121-124 MMCAOP not implemented yet */
  989         IEEE80211_ELEMID_MESHGANN       = 125,
  990         IEEE80211_ELEMID_MESHRANN       = 126,
  991         /* 127 Extended Capabilities */
  992         IEEE80211_ELEMID_EXTCAP         = 127,
  993         /* 128-129 reserved */
  994         IEEE80211_ELEMID_MESHPREQ       = 130,
  995         IEEE80211_ELEMID_MESHPREP       = 131,
  996         IEEE80211_ELEMID_MESHPERR       = 132,
  997         /* 133-136 reserved */
  998         IEEE80211_ELEMID_MESHPXU        = 137,
  999         IEEE80211_ELEMID_MESHPXUC       = 138,
 1000         IEEE80211_ELEMID_MESHAH         = 60, /* XXX: remove */
 1001 
 1002         /* 802.11ac */
 1003         IEEE80211_ELEMID_VHT_CAP        = 191,
 1004         IEEE80211_ELEMID_VHT_OPMODE     = 192,
 1005         IEEE80211_ELEMID_VHT_PWR_ENV    = 195,
 1006 };
 1007 
 1008 struct ieee80211_tim_ie {
 1009         uint8_t         tim_ie;                 /* IEEE80211_ELEMID_TIM */
 1010         uint8_t         tim_len;
 1011         uint8_t         tim_count;              /* DTIM count */
 1012         uint8_t         tim_period;             /* DTIM period */
 1013         uint8_t         tim_bitctl;             /* bitmap control */
 1014         uint8_t         tim_bitmap[1];          /* variable-length bitmap */
 1015 } __packed;
 1016 
 1017 struct ieee80211_country_ie {
 1018         uint8_t         ie;                     /* IEEE80211_ELEMID_COUNTRY */
 1019         uint8_t         len;
 1020         uint8_t         cc[3];                  /* ISO CC+(I)ndoor/(O)utdoor */
 1021         struct {
 1022                 uint8_t schan;                  /* starting channel */
 1023                 uint8_t nchan;                  /* number channels */
 1024                 uint8_t maxtxpwr;               /* tx power cap */
 1025         } __packed band[1];                     /* sub bands (NB: var size) */
 1026 } __packed;
 1027 
 1028 #define IEEE80211_COUNTRY_MAX_BANDS     84      /* max possible bands */
 1029 #define IEEE80211_COUNTRY_MAX_SIZE \
 1030         (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1))
 1031 
 1032 struct ieee80211_bss_load_ie {
 1033         uint8_t         ie;
 1034         uint8_t         len;
 1035         uint16_t        sta_count;      /* station count */
 1036         uint8_t         chan_load;      /* channel utilization */
 1037         uint8_t         aac;            /* available admission capacity */
 1038 } __packed;
 1039 
 1040 struct ieee80211_ap_chan_report_ie {
 1041         uint8_t         ie;
 1042         uint8_t         len;
 1043         uint8_t         i_class; /* operating class */
 1044         /* Annex E, E.1 Country information and operating classes */
 1045         uint8_t         chan_list[0];
 1046 } __packed;
 1047 
 1048 #define IEEE80211_EXTCAP_CMS                    (1ULL <<  0) /* 20/40 BSS coexistence management support */
 1049 #define IEEE80211_EXTCAP_RSVD_1                 (1ULL <<  1)
 1050 #define IEEE80211_EXTCAP_ECS                    (1ULL <<  2) /* extended channel switching */
 1051 #define IEEE80211_EXTCAP_RSVD_3                 (1ULL <<  3)
 1052 #define IEEE80211_EXTCAP_PSMP_CAP               (1ULL <<  4) /* PSMP capability */
 1053 #define IEEE80211_EXTCAP_RSVD_5                 (1ULL <<  5)
 1054 #define IEEE80211_EXTCAP_S_PSMP_SUPP            (1ULL <<  6)
 1055 #define IEEE80211_EXTCAP_EVENT                  (1ULL <<  7)
 1056 #define IEEE80211_EXTCAP_DIAGNOSTICS            (1ULL <<  8)
 1057 #define IEEE80211_EXTCAP_MCAST_DIAG             (1ULL <<  9)
 1058 #define IEEE80211_EXTCAP_LOC_TRACKING           (1ULL << 10)
 1059 #define IEEE80211_EXTCAP_FMS                    (1ULL << 11)
 1060 #define IEEE80211_EXTCAP_PROXY_ARP              (1ULL << 12)
 1061 #define IEEE80211_EXTCAP_CIR                    (1ULL << 13) /* collocated interference reporting */
 1062 #define IEEE80211_EXTCAP_CIVIC_LOC              (1ULL << 14)
 1063 #define IEEE80211_EXTCAP_GEOSPATIAL_LOC         (1ULL << 15)
 1064 #define IEEE80211_EXTCAP_TFS                    (1ULL << 16)
 1065 #define IEEE80211_EXTCAP_WNM_SLEEPMODE          (1ULL << 17)
 1066 #define IEEE80211_EXTCAP_TIM_BROADCAST          (1ULL << 18)
 1067 #define IEEE80211_EXTCAP_BSS_TRANSITION         (1ULL << 19)
 1068 #define IEEE80211_EXTCAP_QOS_TRAF_CAP           (1ULL << 20)
 1069 #define IEEE80211_EXTCAP_AC_STA_COUNT           (1ULL << 21)
 1070 #define IEEE80211_EXTCAP_M_BSSID                (1ULL << 22) /* multiple BSSID field */
 1071 #define IEEE80211_EXTCAP_TIMING_MEAS            (1ULL << 23)
 1072 #define IEEE80211_EXTCAP_CHAN_USAGE             (1ULL << 24)
 1073 #define IEEE80211_EXTCAP_SSID_LIST              (1ULL << 25)
 1074 #define IEEE80211_EXTCAP_DMS                    (1ULL << 26)
 1075 #define IEEE80211_EXTCAP_UTC_TSF_OFFSET         (1ULL << 27)
 1076 #define IEEE80211_EXTCAP_TLDS_BUF_STA_SUPP      (1ULL << 28) /* TDLS peer U-APSP buffer STA support */
 1077 #define IEEE80211_EXTCAP_TLDS_PPSM_SUPP         (1ULL << 29) /* TDLS peer PSM support */
 1078 #define IEEE80211_EXTCAP_TLDS_CH_SW             (1ULL << 30) /* TDLS channel switching */
 1079 #define IEEE80211_EXTCAP_INTERWORKING           (1ULL << 31)
 1080 #define IEEE80211_EXTCAP_QOSMAP                 (1ULL << 32)
 1081 #define IEEE80211_EXTCAP_EBR                    (1ULL << 33)
 1082 #define IEEE80211_EXTCAP_SSPN_IF                (1ULL << 34)
 1083 #define IEEE80211_EXTCAP_RSVD_35                (1ULL << 35)
 1084 #define IEEE80211_EXTCAP_MSGCF_CAP              (1ULL << 36)
 1085 #define IEEE80211_EXTCAP_TLDS_SUPP              (1ULL << 37)
 1086 #define IEEE80211_EXTCAP_TLDS_PROHIB            (1ULL << 38)
 1087 #define IEEE80211_EXTCAP_TLDS_CH_SW_PROHIB      (1ULL << 39) /* TDLS channel switching prohibited */
 1088 #define IEEE80211_EXTCAP_RUF                    (1ULL << 40) /* reject unadmitted frame */
 1089 /* service interval granularity */
 1090 #define IEEE80211_EXTCAP_SIG \
 1091                                 ((1ULL << 41) | (1ULL << 42) | (1ULL << 43))
 1092 #define IEEE80211_EXTCAP_ID_LOC                 (1ULL << 44)
 1093 #define IEEE80211_EXTCAP_U_APSD_COEX            (1ULL << 45)
 1094 #define IEEE80211_EXTCAP_WNM_NOTIFICATION       (1ULL << 46)
 1095 #define IEEE80211_EXTCAP_RSVD_47                (1ULL << 47)
 1096 #define IEEE80211_EXTCAP_SSID                   (1ULL << 48) /* UTF-8 SSID */
 1097 /* bits 49-n are reserved */
 1098 
 1099 struct ieee80211_extcap_ie {
 1100         uint8_t         ie;
 1101         uint8_t         len;
 1102 } __packed;
 1103 
 1104 /*
 1105  * 802.11h Quiet Time Element.
 1106  */
 1107 struct ieee80211_quiet_ie {
 1108         uint8_t         quiet_ie;               /* IEEE80211_ELEMID_QUIET */
 1109         uint8_t         len;
 1110         uint8_t         tbttcount;              /* quiet start */
 1111         uint8_t         period;                 /* beacon intervals between quiets */
 1112         uint16_t        duration;               /* TUs of each quiet*/
 1113         uint16_t        offset;                 /* TUs of from TBTT of quiet start */
 1114 } __packed;
 1115 
 1116 /*
 1117  * 802.11h Channel Switch Announcement (CSA).
 1118  */
 1119 struct ieee80211_csa_ie {
 1120         uint8_t         csa_ie;         /* IEEE80211_ELEMID_CHANSWITCHANN */
 1121         uint8_t         csa_len;
 1122         uint8_t         csa_mode;               /* Channel Switch Mode */
 1123         uint8_t         csa_newchan;            /* New Channel Number */
 1124         uint8_t         csa_count;              /* Channel Switch Count */
 1125 } __packed;
 1126 
 1127 /*
 1128  * Note the min acceptable CSA count is used to guard against
 1129  * malicious CSA injection in station mode.  Defining this value
 1130  * as other than 0 violates the 11h spec.
 1131  */
 1132 #define IEEE80211_CSA_COUNT_MIN 2
 1133 #define IEEE80211_CSA_COUNT_MAX 255
 1134 
 1135 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */
 1136 #define IEEE80211_RATE_BASIC            0x80
 1137 #define IEEE80211_RATE_VAL              0x7f
 1138 #define IEEE80211_RV(v)                 ((v) & IEEE80211_RATE_VAL)
 1139 
 1140 /* ERP information element flags */
 1141 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
 1142 #define IEEE80211_ERP_USE_PROTECTION    0x02
 1143 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
 1144 
 1145 #define IEEE80211_ERP_BITS \
 1146         "\2\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE"
 1147 
 1148 #define ATH_OUI                 0x7f0300        /* Atheros OUI */
 1149 #define ATH_OUI_TYPE            0x01            /* Atheros protocol ie */
 1150 
 1151 /* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */
 1152 #define TDMA_OUI                ATH_OUI
 1153 #define TDMA_OUI_TYPE           0x02            /* TDMA protocol ie */
 1154 
 1155 #define BCM_OUI                 0x4c9000        /* Broadcom OUI */
 1156 #define BCM_OUI_HTCAP           51              /* pre-draft HTCAP ie */
 1157 #define BCM_OUI_HTINFO          52              /* pre-draft HTINFO ie */
 1158 
 1159 #define WPA_OUI                 0xf25000
 1160 #define WPA_OUI_TYPE            0x01
 1161 #define WPA_VERSION             1               /* current supported version */
 1162 
 1163 #define WPA_CSE_NULL            0x00
 1164 #define WPA_CSE_WEP40           0x01
 1165 #define WPA_CSE_TKIP            0x02
 1166 #define WPA_CSE_CCMP            0x04
 1167 #define WPA_CSE_WEP104          0x05
 1168 
 1169 #define WPA_ASE_NONE            0x00
 1170 #define WPA_ASE_8021X_UNSPEC    0x01
 1171 #define WPA_ASE_8021X_PSK       0x02
 1172 
 1173 #define WPS_OUI_TYPE            0x04
 1174 
 1175 #define RSN_OUI                 0xac0f00
 1176 #define RSN_VERSION             1               /* current supported version */
 1177 
 1178 #define RSN_CSE_NULL            0x00
 1179 #define RSN_CSE_WEP40           0x01
 1180 #define RSN_CSE_TKIP            0x02
 1181 #define RSN_CSE_WRAP            0x03
 1182 #define RSN_CSE_CCMP            0x04
 1183 #define RSN_CSE_WEP104          0x05
 1184 
 1185 #define RSN_ASE_NONE            0x00
 1186 #define RSN_ASE_8021X_UNSPEC    0x01
 1187 #define RSN_ASE_8021X_PSK       0x02
 1188 
 1189 #define RSN_CAP_PREAUTH         0x01
 1190 
 1191 #define WME_OUI                 0xf25000
 1192 #define WME_OUI_TYPE            0x02
 1193 #define WME_INFO_OUI_SUBTYPE    0x00
 1194 #define WME_PARAM_OUI_SUBTYPE   0x01
 1195 #define WME_VERSION             1
 1196 
 1197 /* WME stream classes */
 1198 #define WME_AC_BE       0               /* best effort */
 1199 #define WME_AC_BK       1               /* background */
 1200 #define WME_AC_VI       2               /* video */
 1201 #define WME_AC_VO       3               /* voice */
 1202 
 1203 /*
 1204  * AUTH management packets
 1205  *
 1206  *      octet algo[2]
 1207  *      octet seq[2]
 1208  *      octet status[2]
 1209  *      octet chal.id
 1210  *      octet chal.length
 1211  *      octet chal.text[253]            NB: 1-253 bytes
 1212  */
 1213 
 1214 /* challenge length for shared key auth */
 1215 #define IEEE80211_CHALLENGE_LEN         128
 1216 
 1217 #define IEEE80211_AUTH_ALG_OPEN         0x0000
 1218 #define IEEE80211_AUTH_ALG_SHARED       0x0001
 1219 #define IEEE80211_AUTH_ALG_LEAP         0x0080
 1220 
 1221 enum {
 1222         IEEE80211_AUTH_OPEN_REQUEST             = 1,
 1223         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
 1224 };
 1225 
 1226 enum {
 1227         IEEE80211_AUTH_SHARED_REQUEST           = 1,
 1228         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
 1229         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
 1230         IEEE80211_AUTH_SHARED_PASS              = 4,
 1231 };
 1232 
 1233 /*
 1234  * Reason and status codes.
 1235  *
 1236  * Reason codes are used in management frames to indicate why an
 1237  * action took place (e.g. on disassociation).  Status codes are
 1238  * used in management frames to indicate the result of an operation.
 1239  *
 1240  * Unlisted codes are reserved
 1241  */
 1242 
 1243 enum {
 1244         IEEE80211_REASON_UNSPECIFIED            = 1,
 1245         IEEE80211_REASON_AUTH_EXPIRE            = 2,
 1246         IEEE80211_REASON_AUTH_LEAVE             = 3,
 1247         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
 1248         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
 1249         IEEE80211_REASON_NOT_AUTHED             = 6,
 1250         IEEE80211_REASON_NOT_ASSOCED            = 7,
 1251         IEEE80211_REASON_ASSOC_LEAVE            = 8,
 1252         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
 1253         IEEE80211_REASON_DISASSOC_PWRCAP_BAD    = 10,   /* 11h */
 1254         IEEE80211_REASON_DISASSOC_SUPCHAN_BAD   = 11,   /* 11h */
 1255         IEEE80211_REASON_IE_INVALID             = 13,   /* 11i */
 1256         IEEE80211_REASON_MIC_FAILURE            = 14,   /* 11i */
 1257         IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,   /* 11i */
 1258         IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */
 1259         IEEE80211_REASON_IE_IN_4WAY_DIFFERS     = 17,   /* 11i */
 1260         IEEE80211_REASON_GROUP_CIPHER_INVALID   = 18,   /* 11i */
 1261         IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19,   /* 11i */
 1262         IEEE80211_REASON_AKMP_INVALID           = 20,   /* 11i */
 1263         IEEE80211_REASON_UNSUPP_RSN_IE_VERSION  = 21,   /* 11i */
 1264         IEEE80211_REASON_INVALID_RSN_IE_CAP     = 22,   /* 11i */
 1265         IEEE80211_REASON_802_1X_AUTH_FAILED     = 23,   /* 11i */
 1266         IEEE80211_REASON_CIPHER_SUITE_REJECTED  = 24,   /* 11i */
 1267         IEEE80211_REASON_UNSPECIFIED_QOS        = 32,   /* 11e */
 1268         IEEE80211_REASON_INSUFFICIENT_BW        = 33,   /* 11e */
 1269         IEEE80211_REASON_TOOMANY_FRAMES         = 34,   /* 11e */
 1270         IEEE80211_REASON_OUTSIDE_TXOP           = 35,   /* 11e */
 1271         IEEE80211_REASON_LEAVING_QBSS           = 36,   /* 11e */
 1272         IEEE80211_REASON_BAD_MECHANISM          = 37,   /* 11e */
 1273         IEEE80211_REASON_SETUP_NEEDED           = 38,   /* 11e */
 1274         IEEE80211_REASON_TIMEOUT                = 39,   /* 11e */
 1275 
 1276         IEEE80211_REASON_PEER_LINK_CANCELED     = 52,   /* 11s */
 1277         IEEE80211_REASON_MESH_MAX_PEERS         = 53,   /* 11s */
 1278         IEEE80211_REASON_MESH_CPVIOLATION       = 54,   /* 11s */
 1279         IEEE80211_REASON_MESH_CLOSE_RCVD        = 55,   /* 11s */
 1280         IEEE80211_REASON_MESH_MAX_RETRIES       = 56,   /* 11s */
 1281         IEEE80211_REASON_MESH_CONFIRM_TIMEOUT   = 57,   /* 11s */
 1282         IEEE80211_REASON_MESH_INVALID_GTK       = 58,   /* 11s */
 1283         IEEE80211_REASON_MESH_INCONS_PARAMS     = 59,   /* 11s */
 1284         IEEE80211_REASON_MESH_INVALID_SECURITY  = 60,   /* 11s */
 1285         IEEE80211_REASON_MESH_PERR_NO_PROXY     = 61,   /* 11s */
 1286         IEEE80211_REASON_MESH_PERR_NO_FI        = 62,   /* 11s */
 1287         IEEE80211_REASON_MESH_PERR_DEST_UNREACH = 63,   /* 11s */
 1288         IEEE80211_REASON_MESH_MAC_ALRDY_EXISTS_MBSS = 64, /* 11s */
 1289         IEEE80211_REASON_MESH_CHAN_SWITCH_REG   = 65,   /* 11s */
 1290         IEEE80211_REASON_MESH_CHAN_SWITCH_UNSPEC = 66,  /* 11s */
 1291 
 1292         IEEE80211_STATUS_SUCCESS                = 0,
 1293         IEEE80211_STATUS_UNSPECIFIED            = 1,
 1294         IEEE80211_STATUS_CAPINFO                = 10,
 1295         IEEE80211_STATUS_NOT_ASSOCED            = 11,
 1296         IEEE80211_STATUS_OTHER                  = 12,
 1297         IEEE80211_STATUS_ALG                    = 13,
 1298         IEEE80211_STATUS_SEQUENCE               = 14,
 1299         IEEE80211_STATUS_CHALLENGE              = 15,
 1300         IEEE80211_STATUS_TIMEOUT                = 16,
 1301         IEEE80211_STATUS_TOOMANY                = 17,
 1302         IEEE80211_STATUS_BASIC_RATE             = 18,
 1303         IEEE80211_STATUS_SP_REQUIRED            = 19,   /* 11b */
 1304         IEEE80211_STATUS_PBCC_REQUIRED          = 20,   /* 11b */
 1305         IEEE80211_STATUS_CA_REQUIRED            = 21,   /* 11b */
 1306         IEEE80211_STATUS_SPECMGMT_REQUIRED      = 22,   /* 11h */
 1307         IEEE80211_STATUS_PWRCAP_REQUIRED        = 23,   /* 11h */
 1308         IEEE80211_STATUS_SUPCHAN_REQUIRED       = 24,   /* 11h */
 1309         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,   /* 11g */
 1310         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,   /* 11g */
 1311         IEEE80211_STATUS_MISSING_HT_CAPS        = 27,   /* 11n D3.0 */
 1312         IEEE80211_STATUS_INVALID_IE             = 40,   /* 11i */
 1313         IEEE80211_STATUS_GROUP_CIPHER_INVALID   = 41,   /* 11i */
 1314         IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42,  /* 11i */
 1315         IEEE80211_STATUS_AKMP_INVALID           = 43,   /* 11i */
 1316         IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION  = 44,   /* 11i */
 1317         IEEE80211_STATUS_INVALID_RSN_IE_CAP     = 45,   /* 11i */
 1318         IEEE80211_STATUS_CIPHER_SUITE_REJECTED  = 46,   /* 11i */
 1319 };
 1320 
 1321 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
 1322 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
 1323 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
 1324 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
 1325 #define IEEE80211_WEP_TOTLEN            (IEEE80211_WEP_IVLEN + \
 1326                                          IEEE80211_WEP_KIDLEN + \
 1327                                          IEEE80211_WEP_CRCLEN)
 1328 #define IEEE80211_WEP_NKID              4       /* number of key ids */
 1329 
 1330 /*
 1331  * 802.11i defines an extended IV for use with non-WEP ciphers.
 1332  * When the EXTIV bit is set in the key id byte an additional
 1333  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 1334  * EXTIV bit is likewise set but the 8 bytes represent the
 1335  * CCMP header rather than IV+extended-IV.
 1336  */
 1337 #define IEEE80211_WEP_EXTIV             0x20
 1338 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
 1339 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
 1340 
 1341 #define IEEE80211_CRC_LEN               4
 1342 
 1343 /*
 1344  * Maximum acceptable MTU is:
 1345  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
 1346  *              QoS overhead - RSN/WPA overhead
 1347  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
 1348  * mtu is Ethernet-compatible; it's set by ether_ifattach.
 1349  */
 1350 #define IEEE80211_MTU_MAX               2290
 1351 #define IEEE80211_MTU_MIN               32
 1352 
 1353 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
 1354     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
 1355 #define IEEE80211_ACK_LEN \
 1356         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
 1357 #define IEEE80211_MIN_LEN \
 1358         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
 1359 
 1360 /*
 1361  * The 802.11 spec says at most 2007 stations may be
 1362  * associated at once.  For most AP's this is way more
 1363  * than is feasible so we use a default of IEEE80211_AID_DEF.
 1364  * This number may be overridden by the driver and/or by
 1365  * user configuration but may not be less than IEEE80211_AID_MIN
 1366  * (see _ieee80211.h for implementation-specific settings).
 1367  */
 1368 #define IEEE80211_AID_MAX               2007
 1369 
 1370 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
 1371 
 1372 /* 
 1373  * RTS frame length parameters.  The default is specified in
 1374  * the 802.11 spec as 512; we treat it as implementation-dependent
 1375  * so it's defined in ieee80211_var.h.  The max may be wrong
 1376  * for jumbo frames.
 1377  */
 1378 #define IEEE80211_RTS_MIN               1
 1379 #define IEEE80211_RTS_MAX               2346
 1380 
 1381 /* 
 1382  * TX fragmentation parameters.  As above for RTS, we treat
 1383  * default as implementation-dependent so define it elsewhere.
 1384  */
 1385 #define IEEE80211_FRAG_MIN              256
 1386 #define IEEE80211_FRAG_MAX              2346
 1387 
 1388 /*
 1389  * Beacon interval (TU's).  Min+max come from WiFi requirements.
 1390  * As above, we treat default as implementation-dependent so
 1391  * define it elsewhere.
 1392  */
 1393 #define IEEE80211_BINTVAL_MAX   1000    /* max beacon interval (TU's) */
 1394 #define IEEE80211_BINTVAL_MIN   25      /* min beacon interval (TU's) */
 1395 
 1396 /*
 1397  * DTIM period (beacons).  Min+max are not really defined
 1398  * by the protocol but we want them publicly visible so
 1399  * define them here.
 1400  */
 1401 #define IEEE80211_DTIM_MAX      15      /* max DTIM period */
 1402 #define IEEE80211_DTIM_MIN      1       /* min DTIM period */
 1403 
 1404 /*
 1405  * Beacon miss threshold (beacons).  As for DTIM, we define
 1406  * them here to be publicly visible.  Note the max may be
 1407  * clamped depending on device capabilities.
 1408  */
 1409 #define IEEE80211_HWBMISS_MIN   1
 1410 #define IEEE80211_HWBMISS_MAX   255
 1411 
 1412 /*
 1413  * 802.11 frame duration definitions.
 1414  */
 1415 
 1416 struct ieee80211_duration {
 1417         uint16_t        d_rts_dur;
 1418         uint16_t        d_data_dur;
 1419         uint16_t        d_plcp_len;
 1420         uint8_t         d_residue;      /* unused octets in time slot */
 1421 };
 1422 
 1423 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
 1424 #define IEEE80211_DUR_TU                1024
 1425 
 1426 /* IEEE 802.11b durations for DSSS PHY in microseconds */
 1427 #define IEEE80211_DUR_DS_LONG_PREAMBLE  144
 1428 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
 1429 
 1430 #define IEEE80211_DUR_DS_SLOW_PLCPHDR   48
 1431 #define IEEE80211_DUR_DS_FAST_PLCPHDR   24
 1432 #define IEEE80211_DUR_DS_SLOW_ACK       112
 1433 #define IEEE80211_DUR_DS_FAST_ACK       56
 1434 #define IEEE80211_DUR_DS_SLOW_CTS       112
 1435 #define IEEE80211_DUR_DS_FAST_CTS       56
 1436 
 1437 #define IEEE80211_DUR_DS_SLOT           20
 1438 #define IEEE80211_DUR_DS_SIFS           10
 1439 #define IEEE80211_DUR_DS_PIFS   (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
 1440 #define IEEE80211_DUR_DS_DIFS   (IEEE80211_DUR_DS_SIFS + \
 1441                                  2 * IEEE80211_DUR_DS_SLOT)
 1442 #define IEEE80211_DUR_DS_EIFS   (IEEE80211_DUR_DS_SIFS + \
 1443                                  IEEE80211_DUR_DS_SLOW_ACK + \
 1444                                  IEEE80211_DUR_DS_LONG_PREAMBLE + \
 1445                                  IEEE80211_DUR_DS_SLOW_PLCPHDR + \
 1446                                  IEEE80211_DUR_DIFS)
 1447 
 1448 #endif /* _NET80211_IEEE80211_H_ */

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