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  * $FreeBSD$
   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 struct ieee80211_qosframe_addr4 {
  105         uint8_t         i_fc[2];
  106         uint8_t         i_dur[2];
  107         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  108         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  109         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
  110         uint8_t         i_seq[2];
  111         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
  112         uint8_t         i_qos[2];
  113 } __packed;
  114 
  115 #define IEEE80211_FC0_VERSION_MASK              0x03
  116 #define IEEE80211_FC0_VERSION_SHIFT             0
  117 #define IEEE80211_FC0_VERSION_0                 0x00
  118 #define IEEE80211_FC0_TYPE_MASK                 0x0c
  119 #define IEEE80211_FC0_TYPE_SHIFT                2
  120 #define IEEE80211_FC0_TYPE_MGT                  0x00    /* Management */
  121 #define IEEE80211_FC0_TYPE_CTL                  0x04    /* Control */
  122 #define IEEE80211_FC0_TYPE_DATA                 0x08    /* Data */
  123 #define IEEE80211_FC0_TYPE_EXT                  0x0c    /* Extension */
  124 
  125 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
  126 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
  127 /* 802.11-2020 Table 9-1-Valid type and subtype combinations */
  128 /* For type 00 Management (IEEE80211_FC0_TYPE_MGT) */
  129 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00    /* Association Request */
  130 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10    /* Association Response */
  131 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20    /* Reassociation Request */
  132 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30    /* Reassociation Response */
  133 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40    /* Probe Request */
  134 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50    /* Probe Response */
  135 #define IEEE80211_FC0_SUBTYPE_TIMING_ADV        0x60    /* Timing Advertisement */
  136 /* 0111 Reserved                                0x70 */
  137 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80    /* Beacon */
  138 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90    /* ATIM */
  139 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0    /* Disassociation */
  140 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0    /* Authentication */
  141 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0    /* Deauthentication */
  142 #define IEEE80211_FC0_SUBTYPE_ACTION            0xd0    /* Action */
  143 #define IEEE80211_FC0_SUBTYPE_ACTION_NOACK      0xe0    /* Action No Ack */
  144 /* 1111 Reserved                                0xf0 */
  145 /* For type 01 Control (IEEE80211_FC0_TYPE_CTL) */
  146 /* 0000-0001 Reserved                           0x00-0x10 */
  147 #define IEEE80211_FC0_SUBTYPE_TRIGGER           0x20    /* Trigger, 80211ax-2021 */
  148 #define IEEE80211_FC0_SUBTYPE_TACK              0x30    /* TACK */
  149 #define IEEE80211_FC0_SUBTYPE_BF_REPORT_POLL    0x40    /* Beamforming Report Poll */
  150 #define IEEE80211_FC0_SUBTYPE_VHT_HE_NDP        0x50    /* VHT/HE NDP Announcement, 80211ac/ax-2013/2021 */
  151 #define IEEE80211_FC0_SUBTYPE_CTL_EXT           0x60    /* Control Frame Extension */
  152 #define IEEE80211_FC0_SUBTYPE_CONTROL_WRAP      0x70    /* Control Wrapper */
  153 #define IEEE80211_FC0_SUBTYPE_BAR               0x80    /* Block Ack Request (BlockAckReq) */
  154 #define IEEE80211_FC0_SUBTYPE_BA                0x90    /* Block Ack (BlockAck) */
  155 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0    /* PS-Poll */
  156 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0    /* RTS */
  157 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0    /* CTS */
  158 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0    /* Ack */
  159 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0    /* CF-End */
  160 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0    /* 1111 Reserved - what was CF_END_ACK? */
  161 /* For type 10 Data (IEEE80211_FC0_TYPE_DATA) */
  162 #define IEEE80211_FC0_SUBTYPE_DATA              0x00    /* Data */
  163 /* 0001-0011 Reserved                           0x10-0x30 */    /* Were: CF_ACK, CF_POLL, CF_ACPL */
  164 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40    /* Null */
  165 /* 0101-0111 Reserved                           0x50-0x70 */    /* Were: CFACK, CFPOLL, CF_ACK_CF_ACK */
  166 #define IEEE80211_FC0_SUBTYPE_QOS_DATA          0x80    /* QoS Data */
  167 #define IEEE80211_FC0_SUBTYPE_QOS_DATA_CFACK    0x90    /* QoS Data +CF-Ack */
  168 #define IEEE80211_FC0_SUBTYPE_QOS_DATA_CFPOLL   0xa0    /* QoS Data +CF-Poll */
  169 #define IEEE80211_FC0_SUBTYPE_QOS_DATA_CFACKPOLL 0xb0   /* QoS Data +CF-Ack +CF-Poll */
  170 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0    /* QoS Null */
  171 /* 1101 Reserved                                0xd0 */
  172 #define IEEE80211_FC0_SUBTYPE_QOS_CFPOLL        0xe0    /* QoS CF-Poll */
  173 #define IEEE80211_FC0_SUBTYPE_QOS_CFACKPOLL     0xf0    /* QoS CF-Ack +CF-Poll */
  174 /* For type 11 Extension (IEEE80211_FC0_TYPE_EXT) */
  175 #define IEEE80211_FC0_SUBTYPE_DMG_BEACON        0x00    /* DMG Beacon */
  176 #define IEEE80211_FC0_SUBTYPE_S1G_BEACON        0x10    /* S1G Beacon */
  177 /* 0010-1111 Reserved                           0x20-0xff */
  178 
  179 /* 802.11-2020 Table 9-2-Control Frame Extension */
  180 /* Reusing B11..B8, part of FC1 */
  181 #define IEEE80211_CTL_EXT_SECTOR_ACK            0x00    /* Sector Ack, 80211ay-2021 */
  182 #define IEEE80211_CTL_EXT_BA_SCHED              0x01    /* Block Ack Schedule, 80211ay-2021 */
  183 #define IEEE80211_CTL_EXT_POLL                  0x02    /* Poll */
  184 #define IEEE80211_CTL_EXT_SPR                   0x03    /* SPR */
  185 #define IEEE80211_CTL_EXT_GRANT                 0x04    /* Grant */
  186 #define IEEE80211_CTL_EXT_DMG_CTS               0x05    /* DMG CTS */
  187 #define IEEE80211_CTL_EXT_DMG_DTS               0x06    /* DMG DTS */
  188 #define IEEE80211_CTL_EXT_GRANT_ACK             0x07    /* Grant Ack */
  189 #define IEEE80211_CTL_EXT_SSW                   0x08    /* SSW */
  190 #define IEEE80211_CTL_EXT_SSW_FBACK             0x09    /* SSW-Feedback */
  191 #define IEEE80211_CTL_EXT_SSW_ACK               0x0a    /* SSW-Ack */
  192 #define IEEE80211_CTL_EXT_TDD_BF                0x0b    /* TDD Beamforming, 80211ay-2021 */
  193 /* 1100-1111 Reserved                           0xc-0xf */
  194 
  195 #define IEEE80211_IS_MGMT(wh)                                   \
  196         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  197             == IEEE80211_FC0_TYPE_MGT))
  198 #define IEEE80211_IS_CTL(wh)                                    \
  199         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  200             == IEEE80211_FC0_TYPE_CTL))
  201 #define IEEE80211_IS_DATA(wh)                                   \
  202         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  203             == IEEE80211_FC0_TYPE_DATA))
  204 #define IEEE80211_IS_EXT(wh)                                    \
  205         (!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)          \
  206             == IEEE80211_FC0_TYPE_EXT))
  207 
  208 #define IEEE80211_FC0_QOSDATA \
  209         (IEEE80211_FC0_TYPE_DATA|IEEE80211_FC0_SUBTYPE_QOS_DATA|IEEE80211_FC0_VERSION_0)
  210 
  211 #define IEEE80211_IS_QOSDATA(wh) \
  212         ((wh)->i_fc[0] == IEEE80211_FC0_QOSDATA)
  213 
  214 #define IEEE80211_FC1_DIR_MASK                  0x03
  215 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
  216 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
  217 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
  218 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
  219 
  220 #define IEEE80211_IS_DSTODS(wh) \
  221         (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
  222 
  223 #define IEEE80211_FC1_MORE_FRAG                 0x04
  224 #define IEEE80211_FC1_RETRY                     0x08
  225 #define IEEE80211_FC1_PWR_MGT                   0x10
  226 #define IEEE80211_FC1_MORE_DATA                 0x20
  227 #define IEEE80211_FC1_PROTECTED                 0x40
  228 #define IEEE80211_FC1_ORDER                     0x80
  229 
  230 #define IEEE80211_HAS_SEQ(type, subtype) \
  231         ((type) != IEEE80211_FC0_TYPE_CTL && \
  232         !((type) == IEEE80211_FC0_TYPE_DATA && \
  233          ((subtype) & IEEE80211_FC0_SUBTYPE_QOS_NULL) == \
  234                       IEEE80211_FC0_SUBTYPE_QOS_NULL))
  235 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
  236 #define IEEE80211_SEQ_FRAG_SHIFT                0
  237 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
  238 #define IEEE80211_SEQ_SEQ_SHIFT                 4
  239 #define IEEE80211_SEQ_RANGE                     4096
  240 
  241 #define IEEE80211_SEQ_ADD(seq, incr) \
  242         (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1))
  243 #define IEEE80211_SEQ_INC(seq)  IEEE80211_SEQ_ADD(seq,1)
  244 #define IEEE80211_SEQ_SUB(a, b) \
  245         (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1))
  246 
  247 #define IEEE80211_SEQ_BA_RANGE                  2048    /* 2^11 */
  248 #define IEEE80211_SEQ_BA_BEFORE(a, b) \
  249         (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1)
  250 
  251 #define IEEE80211_NWID_LEN                      32
  252 #define IEEE80211_MESHID_LEN                    32
  253 
  254 #define IEEE80211_QOS_CTL_LEN                   2
  255 
  256 #define IEEE80211_QOS_TXOP                      0x00ff
  257 /* bit 8 is reserved */
  258 #define IEEE80211_QOS_AMSDU                     0x80
  259 #define IEEE80211_QOS_AMSDU_S                   7
  260 #define IEEE80211_QOS_ACKPOLICY                 0x60
  261 #define IEEE80211_QOS_ACKPOLICY_S               5
  262 #define IEEE80211_QOS_ACKPOLICY_NOACK           0x20    /* No ACK required */
  263 #define IEEE80211_QOS_ACKPOLICY_BA              0x60    /* Block ACK */
  264 #define IEEE80211_QOS_EOSP                      0x10    /* EndOfService Period*/
  265 #define IEEE80211_QOS_EOSP_S                    4
  266 #define IEEE80211_QOS_TID                       0x0f
  267 /* qos[1] byte used for all frames sent by mesh STAs in a mesh BSS */
  268 #define IEEE80211_QOS_MC                        0x01    /* Mesh control */
  269 /* Mesh power save level*/
  270 #define IEEE80211_QOS_MESH_PSL                  0x02
  271 /* Mesh Receiver Service Period Initiated */
  272 #define IEEE80211_QOS_RSPI                      0x04
  273 /* bits 11 to 15 reserved */
  274 
  275 /* does frame have QoS sequence control data */
  276 #define IEEE80211_QOS_HAS_SEQ(wh) \
  277         (((wh)->i_fc[0] & \
  278           (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS_DATA)) == \
  279           (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS_DATA))
  280 
  281 /*
  282  * WME/802.11e information element.
  283  */
  284 struct ieee80211_wme_info {
  285         uint8_t         wme_id;         /* IEEE80211_ELEMID_VENDOR */
  286         uint8_t         wme_len;        /* length in bytes */
  287         uint8_t         wme_oui[3];     /* 0x00, 0x50, 0xf2 */
  288         uint8_t         wme_type;       /* OUI type */
  289         uint8_t         wme_subtype;    /* OUI subtype */
  290         uint8_t         wme_version;    /* spec revision */
  291         uint8_t         wme_info;       /* QoS info */
  292 } __packed;
  293 
  294 /*
  295  * WME/802.11e Tspec Element
  296  */
  297 struct ieee80211_wme_tspec {
  298         uint8_t         ts_id;
  299         uint8_t         ts_len;
  300         uint8_t         ts_oui[3];
  301         uint8_t         ts_oui_type;
  302         uint8_t         ts_oui_subtype;
  303         uint8_t         ts_version;
  304         uint8_t         ts_tsinfo[3];
  305         uint8_t         ts_nom_msdu[2];
  306         uint8_t         ts_max_msdu[2];
  307         uint8_t         ts_min_svc[4];
  308         uint8_t         ts_max_svc[4];
  309         uint8_t         ts_inactv_intv[4];
  310         uint8_t         ts_susp_intv[4];
  311         uint8_t         ts_start_svc[4];
  312         uint8_t         ts_min_rate[4];
  313         uint8_t         ts_mean_rate[4];
  314         uint8_t         ts_max_burst[4];
  315         uint8_t         ts_min_phy[4];
  316         uint8_t         ts_peak_rate[4];
  317         uint8_t         ts_delay[4];
  318         uint8_t         ts_surplus[2];
  319         uint8_t         ts_medium_time[2];
  320 } __packed;
  321 
  322 /*
  323  * WME AC parameter field
  324  */
  325 struct ieee80211_wme_acparams {
  326         uint8_t         acp_aci_aifsn;
  327         uint8_t         acp_logcwminmax;
  328         uint16_t        acp_txop;
  329 } __packed;
  330 
  331 #define WME_NUM_AC              4       /* 4 AC categories */
  332 #define WME_NUM_TID             16      /* 16 tids */
  333 
  334 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
  335 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
  336 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
  337 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
  338 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
  339 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
  340 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
  341 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
  342 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
  343 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
  344 
  345 #define WME_AC_TO_TID(_ac) (       \
  346         ((_ac) == WME_AC_VO) ? 6 : \
  347         ((_ac) == WME_AC_VI) ? 5 : \
  348         ((_ac) == WME_AC_BK) ? 1 : \
  349         0)
  350 
  351 #define TID_TO_WME_AC(_tid) (      \
  352         ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \
  353         ((_tid) < 3) ? WME_AC_BK : \
  354         ((_tid) < 6) ? WME_AC_VI : \
  355         WME_AC_VO)
  356 
  357 /*
  358  * WME Parameter Element
  359  */
  360 struct ieee80211_wme_param {
  361         uint8_t         param_id;
  362         uint8_t         param_len;
  363         uint8_t         param_oui[3];
  364         uint8_t         param_oui_type;
  365         uint8_t         param_oui_subtype;
  366         uint8_t         param_version;
  367         uint8_t         param_qosInfo;
  368 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
  369         uint8_t         param_reserved;
  370         struct ieee80211_wme_acparams   params_acParams[WME_NUM_AC];
  371 } __packed;
  372 
  373 /*
  374  * WME U-APSD qos info field defines
  375  */
  376 #define WME_CAPINFO_UAPSD_EN                    0x00000080
  377 #define WME_CAPINFO_UAPSD_VO                    0x00000001
  378 #define WME_CAPINFO_UAPSD_VI                    0x00000002
  379 #define WME_CAPINFO_UAPSD_BK                    0x00000004
  380 #define WME_CAPINFO_UAPSD_BE                    0x00000008
  381 #define WME_CAPINFO_UAPSD_ACFLAGS_SHIFT         0
  382 #define WME_CAPINFO_UAPSD_ACFLAGS_MASK          0xF
  383 #define WME_CAPINFO_UAPSD_MAXSP_SHIFT           5
  384 #define WME_CAPINFO_UAPSD_MAXSP_MASK            0x3
  385 #define WME_CAPINFO_IE_OFFSET                   8
  386 #define WME_UAPSD_MAXSP(_qosinfo)                               \
  387             (((_qosinfo) >> WME_CAPINFO_UAPSD_MAXSP_SHIFT) &    \
  388             WME_CAPINFO_UAPSD_MAXSP_MASK)
  389 #define WME_UAPSD_AC_ENABLED(_ac, _qosinfo)                     \
  390             ((1 << (3 - (_ac))) & (                             \
  391             ((_qosinfo) >> WME_CAPINFO_UAPSD_ACFLAGS_SHIFT) &   \
  392             WME_CAPINFO_UAPSD_ACFLAGS_MASK))
  393 
  394 /*
  395  * Management Notification Frame
  396  */
  397 struct ieee80211_mnf {
  398         uint8_t         mnf_category;
  399         uint8_t         mnf_action;
  400         uint8_t         mnf_dialog;
  401         uint8_t         mnf_status;
  402 } __packed;
  403 #define MNF_SETUP_REQ   0
  404 #define MNF_SETUP_RESP  1
  405 #define MNF_TEARDOWN    2
  406 
  407 /* 
  408  * 802.11n Management Action Frames 
  409  */
  410 /* generic frame format */
  411 struct ieee80211_action {
  412         uint8_t         ia_category;
  413         uint8_t         ia_action;
  414 } __packed;
  415 
  416 /* 80211-2020 Table 9-51-Category values */
  417 #define IEEE80211_ACTION_CAT_SM                 0       /* 9.6.2 Spectrum Management */
  418 #define IEEE80211_ACTION_CAT_QOS                1       /* 9.6.3 QoS */
  419 /* Reserved                                     2       was IEEE80211_ACTION_CAT_DLS */
  420 #define IEEE80211_ACTION_CAT_BA                 3       /* 9.6.4 Block Ack */
  421 #define IEEE80211_ACTION_CAT_PUBLIC             4       /* 9.6.7 Public */
  422 #define IEEE80211_ACTION_CAT_RADIO_MEASUREMENT  5       /* 9.6.6 Radio Measurement */
  423 #define IEEE80211_ACTION_CAT_FAST_BBS_TRANSITION 6      /* 9.6.8 Fast BSS Transition */
  424 #define IEEE80211_ACTION_CAT_HT                 7       /* 9.6.11 HT */
  425 #define IEEE80211_ACTION_CAT_SA_QUERY           8       /* 9.6.9 SA Query */
  426 #define IEEE80211_ACTION_CAT_PROTECTED_DUAL_OF_PUBLIC_ACTION 9 /* 9.6.10 Protected Dual of Public Action */
  427 #define IEEE80211_ACTION_CAT_WNM                10      /* 9.6.13 WNM */
  428 #define IEEE80211_ACTION_CAT_UNPROTECTED_WNM    11      /* 9.6.14 Unprotected WNM */
  429 #define IEEE80211_ACTION_CAT_TDLS               12      /* 9.6.12 TDLS */
  430 #define IEEE80211_ACTION_CAT_MESH               13      /* 9.6.16 Mesh */
  431 #define IEEE80211_ACTION_CAT_MULTIHOP           14      /* 9.6.17 Multihop */
  432 #define IEEE80211_ACTION_CAT_SELF_PROT          15      /* 9.6.15 Self-protected */
  433 #define IEEE80211_ACTION_CAT_DMG                16      /* 9.6.19 DMG */
  434 /* Reserved                                     17      (R)Wi-Fi Alliance */
  435 #define IEEE80211_ACTION_CAT_FAST_SESSION_TRANSFER 18   /* 9.6.20 Fast Session Transfer */
  436 #define IEEE80211_ACTION_CAT_ROBUST_AV_STREAMING 19     /* 9.6.18 Robust AV Streaming */
  437 #define IEEE80211_ACTION_CAT_UNPROTECTED_DMG    20      /* 9.6.21 Unprotected DMG */
  438 #define IEEE80211_ACTION_CAT_VHT                21      /* 9.6.22 VHT */
  439 #define IEEE80211_ACTION_CAT_UNPROTECTED_S1G    22      /* 9.6.24 Unprotected S1G */
  440 #define IEEE80211_ACTION_CAT_S1G                23      /* 9.6.25 S1G */
  441 #define IEEE80211_ACTION_CAT_FLOW_CONTROL       24      /* 9.6.26 Flow Control */
  442 #define IEEE80211_ACTION_CAT_CTL_RESP_MCS_NEG   25      /* 9.6.27 Control Response MCS Negotiation */
  443 #define IEEE80211_ACTION_CAT_FILS               26      /* 9.6.23 FILS */
  444 #define IEEE80211_ACTION_CAT_CDMG               27      /* 9.6.28 CDMG */
  445 #define IEEE80211_ACTION_CAT_CMMG               28      /* 9.6.29 CMMG */
  446 #define IEEE80211_ACTION_CAT_GLK                29      /* 9.6.30 GLK */
  447 #define IEEE80211_ACTION_CAT_HE                 30      /* 9.6.31 HE, 80211ax-2021 */
  448 #define IEEE80211_ACTION_CAT_PROTECTED_HE       31      /* 9.6.32 Protected HE, 80211ax-2021 */
  449 /* Reserved                                     32-125 */
  450 #define IEEE80211_ACTION_CAT_VENDOR_SPECIFIC_PROTECTED 126 /* 9.6.5 Vendor-specific Protected */
  451 #define IEEE80211_ACTION_CAT_VENDOR             127     /* 9.6.5 Vendor-specific */
  452 /* Error                                        128-255 */
  453 
  454 
  455 /* 80211-2020 Table 9-346-Spectrum Management Action field values */
  456 enum ieee80211_action_sm {
  457         IEEE80211_ACTION_SM_SMREQ               = 0,    /* Spectrum Measurement Request */
  458         IEEE80211_ACTION_SM_SMREP               = 1,    /* Spectrum Measurement Report */
  459         IEEE80211_ACTION_SM_TPCREQ              = 2,    /* TPC Request */
  460         IEEE80211_ACTION_SM_TPCREP              = 3,    /* TPC Report */
  461         IEEE80211_ACTION_SM_CSA                 = 4,    /* Channel Switch Announcement */
  462         /* Reserved                             = 5-255 */
  463 };
  464 
  465 /* 80211-2020 Table 9-363-Radio Measurement Action field values */
  466 enum ieee80211_action_radio_measurement {
  467         IEEE80211_ACTION_RADIO_MEASUREMENT_RMREQ        = 0,    /* Radio Measurement Request */
  468         IEEE80211_ACTION_RADIO_MEASUREMENT_RMREP        = 1,    /* Radio Measurement Report */
  469         IEEE80211_ACTION_RADIO_MEASUREMENT_LMREQ        = 2,    /* Link Measurement Request */
  470         IEEE80211_ACTION_RADIO_MEASUREMENT_LMREP        = 3,    /* Link Measurement Report */
  471         IEEE80211_ACTION_RADIO_MEASUREMENT_NRREQ        = 4,    /* Neighbor Report Request */
  472         IEEE80211_ACTION_RADIO_MEASUREMENT_NRRESP       = 5,    /* Neighbor Report Response */
  473         /* Reserved                                     = 6-255 */
  474 };
  475 
  476 #define IEEE80211_ACTION_HT_TXCHWIDTH   0       /* recommended xmit chan width*/
  477 #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1       /* MIMO power save */
  478 
  479 /* HT - recommended transmission channel width */
  480 struct ieee80211_action_ht_txchwidth {
  481         struct ieee80211_action at_header;
  482         uint8_t         at_chwidth;     
  483 } __packed;
  484 
  485 #define IEEE80211_A_HT_TXCHWIDTH_20     0
  486 #define IEEE80211_A_HT_TXCHWIDTH_2040   1
  487 
  488 /* HT - MIMO Power Save (NB: D2.04) */
  489 struct ieee80211_action_ht_mimopowersave {
  490         struct ieee80211_action am_header;
  491         uint8_t         am_control;
  492 } __packed;
  493 
  494 #define IEEE80211_A_HT_MIMOPWRSAVE_ENA          0x01    /* PS enabled */
  495 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE         0x02
  496 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S       1
  497 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC      0x02    /* Dynamic Mode */
  498 #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC       0x00    /* no SM packets */
  499 /* bits 2-7 reserved */
  500 
  501 /* Block Ack actions */
  502 #define IEEE80211_ACTION_BA_ADDBA_REQUEST       0   /* ADDBA request */
  503 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE      1   /* ADDBA response */
  504 #define IEEE80211_ACTION_BA_DELBA               2   /* DELBA */
  505 
  506 /* Block Ack Parameter Set */
  507 #define IEEE80211_BAPS_BUFSIZ   0xffc0          /* buffer size */
  508 #define IEEE80211_BAPS_BUFSIZ_S 6
  509 #define IEEE80211_BAPS_TID      0x003c          /* TID */
  510 #define IEEE80211_BAPS_TID_S    2
  511 #define IEEE80211_BAPS_POLICY   0x0002          /* block ack policy */
  512 #define IEEE80211_BAPS_POLICY_S 1
  513 #define IEEE80211_BAPS_AMSDU    0x0001          /* A-MSDU permitted */
  514 #define IEEE80211_BAPS_AMSDU_S  0
  515 
  516 #define IEEE80211_BAPS_POLICY_DELAYED   (0<<IEEE80211_BAPS_POLICY_S)
  517 #define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S)
  518 
  519 /* Block Ack Sequence Control */
  520 #define IEEE80211_BASEQ_START   0xfff0          /* starting seqnum */
  521 #define IEEE80211_BASEQ_START_S 4
  522 #define IEEE80211_BASEQ_FRAG    0x000f          /* fragment number */
  523 #define IEEE80211_BASEQ_FRAG_S  0
  524 
  525 /* Delayed Block Ack Parameter Set */
  526 #define IEEE80211_DELBAPS_TID   0xf000          /* TID */
  527 #define IEEE80211_DELBAPS_TID_S 12
  528 #define IEEE80211_DELBAPS_INIT  0x0800          /* initiator */
  529 #define IEEE80211_DELBAPS_INIT_S 11
  530 
  531 /* BA - ADDBA request */
  532 struct ieee80211_action_ba_addbarequest {
  533         struct ieee80211_action rq_header;
  534         uint8_t         rq_dialogtoken;
  535         uint16_t        rq_baparamset;
  536         uint16_t        rq_batimeout;           /* in TUs */
  537         uint16_t        rq_baseqctl;
  538 } __packed;
  539 
  540 /* BA - ADDBA response */
  541 struct ieee80211_action_ba_addbaresponse {
  542         struct ieee80211_action rs_header;
  543         uint8_t         rs_dialogtoken;
  544         uint16_t        rs_statuscode;
  545         uint16_t        rs_baparamset; 
  546         uint16_t        rs_batimeout;           /* in TUs */
  547 } __packed;
  548 
  549 /* BA - DELBA */
  550 struct ieee80211_action_ba_delba {
  551         struct ieee80211_action dl_header;
  552         uint16_t        dl_baparamset;
  553         uint16_t        dl_reasoncode;
  554 } __packed;
  555 
  556 /* BAR Control */
  557 #define IEEE80211_BAR_TID       0xf000          /* TID */
  558 #define IEEE80211_BAR_TID_S     12
  559 #define IEEE80211_BAR_COMP      0x0004          /* Compressed Bitmap */
  560 #define IEEE80211_BAR_MTID      0x0002          /* Multi-TID */
  561 #define IEEE80211_BAR_NOACK     0x0001          /* No-Ack policy */
  562 
  563 /* BAR Starting Sequence Control */
  564 #define IEEE80211_BAR_SEQ_START 0xfff0          /* starting seqnum */
  565 #define IEEE80211_BAR_SEQ_START_S       4
  566 
  567 struct ieee80211_ba_request {
  568         uint16_t        rq_barctl;
  569         uint16_t        rq_barseqctl;
  570 } __packed;
  571 
  572 /*
  573  * Control frames.
  574  */
  575 struct ieee80211_frame_min {
  576         uint8_t         i_fc[2];
  577         uint8_t         i_dur[2];
  578         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
  579         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
  580         /* FCS */
  581 } __packed;
  582 
  583 struct ieee80211_frame_rts {
  584         uint8_t         i_fc[2];
  585         uint8_t         i_dur[2];
  586         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  587         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  588         /* FCS */
  589 } __packed;
  590 
  591 struct ieee80211_frame_cts {
  592         uint8_t         i_fc[2];
  593         uint8_t         i_dur[2];
  594         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  595         /* FCS */
  596 } __packed;
  597 
  598 struct ieee80211_frame_ack {
  599         uint8_t         i_fc[2];
  600         uint8_t         i_dur[2];
  601         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  602         /* FCS */
  603 } __packed;
  604 
  605 struct ieee80211_frame_pspoll {
  606         uint8_t         i_fc[2];
  607         uint8_t         i_aid[2];
  608         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
  609         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  610         /* FCS */
  611 } __packed;
  612 
  613 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
  614         uint8_t         i_fc[2];
  615         uint8_t         i_dur[2];       /* should be zero */
  616         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  617         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
  618         /* FCS */
  619 } __packed;
  620 
  621 struct ieee80211_frame_bar {
  622         uint8_t         i_fc[2];
  623         uint8_t         i_dur[2];
  624         uint8_t         i_ra[IEEE80211_ADDR_LEN];
  625         uint8_t         i_ta[IEEE80211_ADDR_LEN];
  626         uint16_t        i_ctl;
  627         uint16_t        i_seq;
  628         /* FCS */
  629 } __packed;
  630 
  631 /*
  632  * BEACON management packets
  633  *
  634  *      octet timestamp[8]
  635  *      octet beacon interval[2]
  636  *      octet capability information[2]
  637  *      information element
  638  *              octet elemid
  639  *              octet length
  640  *              octet information[length]
  641  */
  642 
  643 #define IEEE80211_BEACON_INTERVAL(beacon) \
  644         ((beacon)[8] | ((beacon)[9] << 8))
  645 #define IEEE80211_BEACON_CAPABILITY(beacon) \
  646         ((beacon)[10] | ((beacon)[11] << 8))
  647 
  648 #define IEEE80211_CAPINFO_ESS                   0x0001
  649 #define IEEE80211_CAPINFO_IBSS                  0x0002
  650 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
  651 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
  652 #define IEEE80211_CAPINFO_PRIVACY               0x0010
  653 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
  654 #define IEEE80211_CAPINFO_PBCC                  0x0040
  655 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
  656 #define IEEE80211_CAPINFO_SPECTRUM_MGMT         0x0100
  657 /* bit 9 is reserved */
  658 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
  659 #define IEEE80211_CAPINFO_RSN                   0x0800
  660 /* bit 12 is reserved */
  661 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
  662 /* bits 14-15 are reserved */
  663 
  664 #define IEEE80211_CAPINFO_BITS \
  665         "\2\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \
  666         "\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \
  667         "\16DSSOFDM"
  668 
  669 /*
  670  * 802.11i/WPA information element (maximally sized).
  671  */
  672 struct ieee80211_ie_wpa {
  673         uint8_t         wpa_id;         /* IEEE80211_ELEMID_VENDOR */
  674         uint8_t         wpa_len;        /* length in bytes */
  675         uint8_t         wpa_oui[3];     /* 0x00, 0x50, 0xf2 */
  676         uint8_t         wpa_type;       /* OUI type */
  677         uint16_t        wpa_version;    /* spec revision */
  678         uint32_t        wpa_mcipher[1]; /* multicast/group key cipher */
  679         uint16_t        wpa_uciphercnt; /* # pairwise key ciphers */
  680         uint32_t        wpa_uciphers[8];/* ciphers */
  681         uint16_t        wpa_authselcnt; /* authentication selector cnt*/
  682         uint32_t        wpa_authsels[8];/* selectors */
  683         uint16_t        wpa_caps;       /* 802.11i capabilities */
  684         uint16_t        wpa_pmkidcnt;   /* 802.11i pmkid count */
  685         uint16_t        wpa_pmkids[8];  /* 802.11i pmkids */
  686 } __packed;
  687 
  688 /*
  689  * 802.11n HT Capability IE
  690  * NB: these reflect D1.10 
  691  */
  692 struct ieee80211_ie_htcap {
  693         uint8_t         hc_id;                  /* element ID */
  694         uint8_t         hc_len;                 /* length in bytes */
  695         uint16_t        hc_cap;                 /* HT caps (see below) */
  696         uint8_t         hc_param;               /* HT params (see below) */
  697         uint8_t         hc_mcsset[16];          /* supported MCS set */
  698         uint16_t        hc_extcap;              /* extended HT capabilities */
  699         uint32_t        hc_txbf;                /* txbf capabilities */
  700         uint8_t         hc_antenna;             /* antenna capabilities */
  701 } __packed;
  702 
  703 /* HT capability flags (ht_cap) */
  704 #define IEEE80211_HTCAP_LDPC            0x0001  /* LDPC rx supported */
  705 #define IEEE80211_HTCAP_CHWIDTH40       0x0002  /* 20/40 supported */
  706 #define IEEE80211_HTCAP_SMPS            0x000c  /* SM Power Save mode */
  707 #define IEEE80211_HTCAP_SMPS_OFF        0x000c  /* disabled */
  708 #define IEEE80211_HTCAP_SMPS_DYNAMIC    0x0004  /* send RTS first */
  709 /* NB: SMPS value 2 is reserved */
  710 #define IEEE80211_HTCAP_SMPS_ENA        0x0000  /* enabled (static mode) */
  711 #define IEEE80211_HTCAP_GREENFIELD      0x0010  /* Greenfield supported */
  712 #define IEEE80211_HTCAP_SHORTGI20       0x0020  /* Short GI in 20MHz */
  713 #define IEEE80211_HTCAP_SHORTGI40       0x0040  /* Short GI in 40MHz */
  714 #define IEEE80211_HTCAP_TXSTBC          0x0080  /* STBC tx ok */
  715 #define IEEE80211_HTCAP_RXSTBC          0x0300  /* STBC rx support */
  716 #define IEEE80211_HTCAP_RXSTBC_S        8
  717 #define IEEE80211_HTCAP_RXSTBC_1STREAM  0x0100  /* 1 spatial stream */
  718 #define IEEE80211_HTCAP_RXSTBC_2STREAM  0x0200  /* 1-2 spatial streams*/
  719 #define IEEE80211_HTCAP_RXSTBC_3STREAM  0x0300  /* 1-3 spatial streams*/
  720 #define IEEE80211_HTCAP_DELBA           0x0400  /* HT DELBA supported */
  721 #define IEEE80211_HTCAP_MAXAMSDU        0x0800  /* max A-MSDU length */
  722 #define IEEE80211_HTCAP_MAXAMSDU_7935   0x0800  /* 7935 octets */
  723 #define IEEE80211_HTCAP_MAXAMSDU_3839   0x0000  /* 3839 octets */
  724 #define IEEE80211_HTCAP_DSSSCCK40       0x1000  /* DSSS/CCK in 40MHz */
  725 #define IEEE80211_HTCAP_PSMP            0x2000  /* PSMP supported */
  726 #define IEEE80211_HTCAP_40INTOLERANT    0x4000  /* 40MHz intolerant */
  727 #define IEEE80211_HTCAP_LSIGTXOPPROT    0x8000  /* L-SIG TXOP prot */
  728 
  729 #define IEEE80211_HTCAP_BITS \
  730         "\2\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
  731         "\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \
  732         "\20LSIGTXOPPROT"
  733 
  734 /* HT parameters (hc_param) */
  735 #define IEEE80211_HTCAP_MAXRXAMPDU      0x03    /* max rx A-MPDU factor */
  736 #define IEEE80211_HTCAP_MAXRXAMPDU_S    0
  737 #define IEEE80211_HTCAP_MAXRXAMPDU_8K   0
  738 #define IEEE80211_HTCAP_MAXRXAMPDU_16K  1
  739 #define IEEE80211_HTCAP_MAXRXAMPDU_32K  2
  740 #define IEEE80211_HTCAP_MAXRXAMPDU_64K  3
  741 #define IEEE80211_HTCAP_MPDUDENSITY     0x1c    /* min MPDU start spacing */
  742 #define IEEE80211_HTCAP_MPDUDENSITY_S   2
  743 #define IEEE80211_HTCAP_MPDUDENSITY_NA  0       /* no time restriction */
  744 #define IEEE80211_HTCAP_MPDUDENSITY_025 1       /* 1/4 us */
  745 #define IEEE80211_HTCAP_MPDUDENSITY_05  2       /* 1/2 us */
  746 #define IEEE80211_HTCAP_MPDUDENSITY_1   3       /* 1 us */
  747 #define IEEE80211_HTCAP_MPDUDENSITY_2   4       /* 2 us */
  748 #define IEEE80211_HTCAP_MPDUDENSITY_4   5       /* 4 us */
  749 #define IEEE80211_HTCAP_MPDUDENSITY_8   6       /* 8 us */
  750 #define IEEE80211_HTCAP_MPDUDENSITY_16  7       /* 16 us */
  751 
  752 /* HT extended capabilities (hc_extcap) */
  753 #define IEEE80211_HTCAP_PCO             0x0001  /* PCO capable */
  754 #define IEEE80211_HTCAP_PCOTRANS        0x0006  /* PCO transition time */
  755 #define IEEE80211_HTCAP_PCOTRANS_S      1
  756 #define IEEE80211_HTCAP_PCOTRANS_04     0x0002  /* 400 us */
  757 #define IEEE80211_HTCAP_PCOTRANS_15     0x0004  /* 1.5 ms */
  758 #define IEEE80211_HTCAP_PCOTRANS_5      0x0006  /* 5 ms */
  759 /* bits 3-7 reserved */
  760 #define IEEE80211_HTCAP_MCSFBACK        0x0300  /* MCS feedback */
  761 #define IEEE80211_HTCAP_MCSFBACK_S      8
  762 #define IEEE80211_HTCAP_MCSFBACK_NONE   0x0000  /* nothing provided */
  763 #define IEEE80211_HTCAP_MCSFBACK_UNSOL  0x0200  /* unsolicited feedback */
  764 #define IEEE80211_HTCAP_MCSFBACK_MRQ    0x0300  /* " "+respond to MRQ */
  765 #define IEEE80211_HTCAP_HTC             0x0400  /* +HTC support */
  766 #define IEEE80211_HTCAP_RDR             0x0800  /* reverse direction responder*/
  767 /* bits 12-15 reserved */
  768 
  769 /*
  770  * 802.11n HT Information IE
  771  */
  772 struct ieee80211_ie_htinfo {
  773         uint8_t         hi_id;                  /* element ID */
  774         uint8_t         hi_len;                 /* length in bytes */
  775         uint8_t         hi_ctrlchannel;         /* primary channel */
  776         uint8_t         hi_byte1;               /* ht ie byte 1 */
  777         uint8_t         hi_byte2;               /* ht ie byte 2 */
  778         uint8_t         hi_byte3;               /* ht ie byte 3 */
  779         uint16_t        hi_byte45;              /* ht ie bytes 4+5 */
  780         uint8_t         hi_basicmcsset[16];     /* basic MCS set */
  781 } __packed;
  782 
  783 /* byte1 */
  784 #define IEEE80211_HTINFO_2NDCHAN        0x03    /* secondary/ext chan offset */
  785 #define IEEE80211_HTINFO_2NDCHAN_S      0
  786 #define IEEE80211_HTINFO_2NDCHAN_NONE   0x00    /* no secondary/ext channel */
  787 #define IEEE80211_HTINFO_2NDCHAN_ABOVE  0x01    /* above private channel */
  788 /* NB: 2 is reserved */
  789 #define IEEE80211_HTINFO_2NDCHAN_BELOW  0x03    /* below primary channel */ 
  790 #define IEEE80211_HTINFO_TXWIDTH        0x04    /* tx channel width */
  791 #define IEEE80211_HTINFO_TXWIDTH_20     0x00    /* 20MHz width */
  792 #define IEEE80211_HTINFO_TXWIDTH_2040   0x04    /* any supported width */
  793 #define IEEE80211_HTINFO_RIFSMODE       0x08    /* Reduced IFS (RIFS) use */
  794 #define IEEE80211_HTINFO_RIFSMODE_PROH  0x00    /* RIFS use prohibited */
  795 #define IEEE80211_HTINFO_RIFSMODE_PERM  0x08    /* RIFS use permitted */
  796 #define IEEE80211_HTINFO_PMSPONLY       0x10    /* PSMP required to associate */
  797 #define IEEE80211_HTINFO_SIGRAN         0xe0    /* shortest Service Interval */
  798 #define IEEE80211_HTINFO_SIGRAN_S       5
  799 #define IEEE80211_HTINFO_SIGRAN_5       0x00    /* 5 ms */
  800 /* XXX add rest */
  801 
  802 /* bytes 2+3 */
  803 #define IEEE80211_HTINFO_OPMODE         0x03    /* operating mode */
  804 #define IEEE80211_HTINFO_OPMODE_S       0
  805 #define IEEE80211_HTINFO_OPMODE_PURE    0x00    /* no protection */
  806 #define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01    /* protection optional */
  807 #define IEEE80211_HTINFO_OPMODE_HT20PR  0x02    /* protection for HT20 sta's */
  808 #define IEEE80211_HTINFO_OPMODE_MIXED   0x03    /* protection for legacy sta's*/
  809 #define IEEE80211_HTINFO_NONGF_PRESENT  0x04    /* non-GF sta's present */
  810 #define IEEE80211_HTINFO_TXBL           0x08    /* transmit burst limit */
  811 #define IEEE80211_HTINFO_NONHT_PRESENT  0x10    /* non-HT sta's present */
  812 /* bits 5-15 reserved */
  813 
  814 /* bytes 4+5 */
  815 #define IEEE80211_HTINFO_2NDARYBEACON   0x01
  816 #define IEEE80211_HTINFO_LSIGTXOPPROT   0x02
  817 #define IEEE80211_HTINFO_PCO_ACTIVE     0x04
  818 #define IEEE80211_HTINFO_40MHZPHASE     0x08
  819 
  820 /* byte5 */
  821 #define IEEE80211_HTINFO_BASIC_STBCMCS  0x7f
  822 #define IEEE80211_HTINFO_BASIC_STBCMCS_S 0
  823 #define IEEE80211_HTINFO_DUALPROTECTED  0x80
  824 
  825 /*
  826  * 802.11ac definitions - 802.11ac-2013 .
  827  */
  828 
  829 /*
  830  * Maximum length of A-MPDU that the STA can RX in VHT.
  831  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
  832  */
  833 #define IEEE80211_VHTCAP_MAX_AMPDU_8K           0
  834 #define IEEE80211_VHTCAP_MAX_AMPDU_16K          1
  835 #define IEEE80211_VHTCAP_MAX_AMPDU_32K          2
  836 #define IEEE80211_VHTCAP_MAX_AMPDU_64K          3
  837 #define IEEE80211_VHTCAP_MAX_AMPDU_128K         4
  838 #define IEEE80211_VHTCAP_MAX_AMPDU_256K         5
  839 #define IEEE80211_VHTCAP_MAX_AMPDU_512K         6
  840 #define IEEE80211_VHTCAP_MAX_AMPDU_1024K        7
  841 
  842 /*
  843  * VHT MCS information.
  844  * + rx_highest/tx_highest: optional; maximum long GI VHT PPDU
  845  *    data rate.  1Mbit/sec units.
  846  * + rx_mcs_map/tx_mcs_map: bitmap of per-stream supported MCS;
  847  *    2 bits each.
  848  */
  849 
  850 /* 802.11ac-2013, 8.4.2.160.3 Supported VHT-MCS and NSS Set field */
  851 enum ieee80211_vht_mcs_support {
  852         IEEE80211_VHT_MCS_SUPPORT_0_7           = 0,    /* MCS0-7 */
  853         IEEE80211_VHT_MCS_SUPPORT_0_8           = 1,    /* MCS0-8 */
  854         IEEE80211_VHT_MCS_SUPPORT_0_9           = 2,    /* MCS0-9 */
  855         IEEE80211_VHT_MCS_NOT_SUPPORTED         = 3     /* not supported */
  856 };
  857 
  858 struct ieee80211_vht_mcs_info {
  859         uint16_t rx_mcs_map;
  860         uint16_t rx_highest;
  861         uint16_t tx_mcs_map;
  862         uint16_t tx_highest;
  863 } __packed;
  864 
  865 /* 802.11ac-2013, 8.4.2.160.1 VHT Capabilities element structure */
  866 struct ieee80211_vht_cap {
  867         uint32_t                        vht_cap_info;
  868         struct ieee80211_vht_mcs_info   supp_mcs;
  869 } __packed;
  870 
  871 /* VHT capabilities element: 802.11ac-2013 8.4.2.160 */
  872 struct ieee80211_ie_vhtcap {
  873         uint8_t ie;
  874         uint8_t len;
  875         uint32_t vht_cap_info;
  876         struct ieee80211_vht_mcs_info supp_mcs;
  877 } __packed;
  878 
  879 /* VHT operation mode subfields - 802.11ac-2013 Table 8.183x */
  880 #define IEEE80211_VHT_CHANWIDTH_USE_HT          0       /* Use HT IE for chw */
  881 #define IEEE80211_VHT_CHANWIDTH_80MHZ           1       /* 80MHz */
  882 #define IEEE80211_VHT_CHANWIDTH_160MHZ          2       /* 160MHz */
  883 #define IEEE80211_VHT_CHANWIDTH_80P80MHZ        3       /* 80+80MHz */
  884 
  885 /* VHT operation IE - 802.11ac-2013 8.4.2.161 */
  886 struct ieee80211_ie_vht_operation {
  887         uint8_t ie;
  888         uint8_t len;
  889         uint8_t chan_width;
  890         uint8_t center_freq_seg1_idx;
  891         uint8_t center_freq_seg2_idx;
  892         uint16_t basic_mcs_set;
  893 } __packed;
  894 
  895 /* 802.11ac VHT Capabilities */
  896 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_3895   0x00000000
  897 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_7991   0x00000001
  898 #define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_11454  0x00000002
  899 #define IEEE80211_VHTCAP_MAX_MPDU_MASK          0x00000003
  900 #define IEEE80211_VHTCAP_MAX_MPDU_MASK_S        0
  901 
  902 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK   0x0000000C
  903 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK_S 2
  904 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_NONE           0
  905 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ         1
  906 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80P80MHZ   2
  907 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_RESERVED       3
  908 
  909 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ(_vhtcaps)            \
  910     (_IEEE80211_MASKSHIFT(_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) >= \
  911             IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ)
  912 #define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ(_vhtcaps)      \
  913     (_IEEE80211_MASKSHIFT(_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) == \
  914             IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80P80MHZ)
  915 
  916 #define IEEE80211_VHTCAP_RXLDPC         0x00000010
  917 #define IEEE80211_VHTCAP_RXLDPC_S       4
  918 
  919 #define IEEE80211_VHTCAP_SHORT_GI_80            0x00000020
  920 #define IEEE80211_VHTCAP_SHORT_GI_80_S          5
  921 
  922 #define IEEE80211_VHTCAP_SHORT_GI_160           0x00000040
  923 #define IEEE80211_VHTCAP_SHORT_GI_160_S         6
  924 
  925 #define IEEE80211_VHTCAP_TXSTBC         0x00000080
  926 #define IEEE80211_VHTCAP_TXSTBC_S       7
  927 
  928 #define IEEE80211_VHTCAP_RXSTBC_1               0x00000100
  929 #define IEEE80211_VHTCAP_RXSTBC_2               0x00000200
  930 #define IEEE80211_VHTCAP_RXSTBC_3               0x00000300
  931 #define IEEE80211_VHTCAP_RXSTBC_4               0x00000400
  932 #define IEEE80211_VHTCAP_RXSTBC_MASK            0x00000700
  933 #define IEEE80211_VHTCAP_RXSTBC_MASK_S          8
  934 
  935 #define IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE  0x00000800
  936 #define IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE_S        11
  937 
  938 #define IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE  0x00001000
  939 #define IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE_S        12
  940 
  941 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT   13
  942 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK \
  943             (7 << IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT)
  944 #define IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK_S  13
  945 
  946 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT      16
  947 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK \
  948             (7 << IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT)
  949 #define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK_S     16
  950 
  951 #define IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE  0x00080000
  952 #define IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE_S        19
  953 #define IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE  0x00100000
  954 #define IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE_S        20
  955 #define IEEE80211_VHTCAP_VHT_TXOP_PS            0x00200000
  956 #define IEEE80211_VHTCAP_VHT_TXOP_PS_S          21
  957 #define IEEE80211_VHTCAP_HTC_VHT                0x00400000
  958 #define IEEE80211_VHTCAP_HTC_VHT_S              22
  959 
  960 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT       23
  961 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
  962             (7 << IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
  963 #define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK_S      23
  964 
  965 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK   0x0c000000
  966 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB      0x08000000
  967 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB        0x0c000000
  968 #define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK_S 26
  969 
  970 #define IEEE80211_VHTCAP_RX_ANTENNA_PATTERN     0x10000000
  971 #define IEEE80211_VHTCAP_RX_ANTENNA_PATTERN_S   28
  972 #define IEEE80211_VHTCAP_TX_ANTENNA_PATTERN     0x20000000
  973 #define IEEE80211_VHTCAP_TX_ANTENNA_PATTERN_S   29
  974 
  975 /*
  976  * XXX TODO: add the rest of the bits
  977  */
  978 #define IEEE80211_VHTCAP_BITS \
  979         "\2\1MPDU7991\2MPDU11454\3CHAN160\4CHAN8080\5RXLDPC\6SHORTGI80" \
  980         "\7SHORTGI160\10RXSTBC1\11RXSTBC2\12RXSTBC3\13RXSTBC4\14BFERCAP" \
  981         "\15BFEECAP\27VHT\37RXANTPTN\40TXANTPTN"
  982 
  983 /*
  984  * VHT Transmit Power Envelope element - 802.11ac-2013 8.4.2.164
  985  *
  986  * This defines the maximum transmit power for various bandwidths.
  987  */
  988 /*
  989  * Count is how many elements follow and what they're for:
  990  *
  991  * 0 - 20 MHz
  992  * 1 - 20+40 MHz
  993  * 2 - 20+40+80 MHz
  994  * 3 - 20+40+80+(160, 80+80) MHz
  995  */
  996 #define IEEE80211_VHT_TXPWRENV_INFO_COUNT_SHIFT 0
  997 #define IEEE80211_VHT_TXPWRENV_INFO_COUNT_MASK  0x07
  998 
  999 /*
 1000  * Unit is the tx power representation.  It should be EIRP for now;
 1001  * other values are reserved.
 1002  */
 1003 #define IEEE80211_VHT_TXPWRENV_UNIT_MASK        0x38
 1004 #define IEEE80211_VHT_TXPWRENV_UNIT_SHIFT       3
 1005 
 1006 /* This value is within the unit mask/shift above */
 1007 #define IEEE80211_VHT_TXPWRENV_UNIT_EIRP        0
 1008 
 1009 struct ieee80211_ie_vht_txpwrenv {
 1010         uint8_t ie;
 1011         uint8_t len;
 1012         uint8_t tx_info;
 1013         int8_t tx_elem[0];      /* TX power elements, 1/2 dB, signed */
 1014 };
 1015 
 1016 /* VHT action codes */
 1017 #define WLAN_ACTION_VHT_COMPRESSED_BF           0
 1018 #define WLAN_ACTION_VHT_GROUPID_MGMT            1
 1019 #define WLAN_ACTION_VHT_OPMODE_NOTIF            2
 1020 
 1021 /*
 1022  * Management information element payloads.
 1023  */
 1024 
 1025 enum {
 1026         IEEE80211_ELEMID_SSID           = 0,
 1027         IEEE80211_ELEMID_RATES          = 1,
 1028         IEEE80211_ELEMID_FHPARMS        = 2,
 1029         IEEE80211_ELEMID_DSPARMS        = 3,
 1030         IEEE80211_ELEMID_CFPARMS        = 4,
 1031         IEEE80211_ELEMID_TIM            = 5,
 1032         IEEE80211_ELEMID_IBSSPARMS      = 6,
 1033         IEEE80211_ELEMID_COUNTRY        = 7,
 1034         IEEE80211_ELEMID_BSSLOAD        = 11,
 1035         IEEE80211_ELEMID_TSPEC          = 13,
 1036         IEEE80211_ELEMID_TCLAS          = 14,
 1037         IEEE80211_ELEMID_CHALLENGE      = 16,
 1038         /* 17-31 reserved for challenge text extension */
 1039         IEEE80211_ELEMID_PWRCNSTR       = 32,
 1040         IEEE80211_ELEMID_PWRCAP         = 33,
 1041         IEEE80211_ELEMID_TPCREQ         = 34,
 1042         IEEE80211_ELEMID_TPCREP         = 35,
 1043         IEEE80211_ELEMID_SUPPCHAN       = 36,
 1044         IEEE80211_ELEMID_CSA            = 37,
 1045         IEEE80211_ELEMID_MEASREQ        = 38,
 1046         IEEE80211_ELEMID_MEASREP        = 39,
 1047         IEEE80211_ELEMID_QUIET          = 40,
 1048         IEEE80211_ELEMID_IBSSDFS        = 41,
 1049         IEEE80211_ELEMID_ERP            = 42,
 1050         IEEE80211_ELEMID_HTCAP          = 45,
 1051         IEEE80211_ELEMID_QOS            = 46,
 1052         IEEE80211_ELEMID_RESERVED_47    = 47,
 1053         IEEE80211_ELEMID_RSN            = 48,
 1054         IEEE80211_ELEMID_XRATES         = 50,
 1055         IEEE80211_ELEMID_APCHANREP      = 51,
 1056         IEEE80211_ELEMID_MOBILITY_DOMAIN        = 54,
 1057         IEEE80211_ELEMID_HTINFO         = 61,
 1058         IEEE80211_ELEMID_SECCHAN_OFFSET = 62,
 1059         IEEE80211_ELEMID_RRM_ENACAPS    = 70,
 1060         IEEE80211_ELEMID_MULTIBSSID     = 71,
 1061         IEEE80211_ELEMID_COEX_2040      = 72,
 1062         IEEE80211_ELEMID_INTOL_CHN_REPORT       = 73,
 1063         IEEE80211_ELEMID_OVERLAP_BSS_SCAN_PARAM = 74,
 1064         IEEE80211_ELEMID_TSF_REQ        = 91,
 1065         IEEE80211_ELEMID_TSF_RESP       = 92,
 1066         IEEE80211_ELEMID_WNM_SLEEP_MODE = 93,
 1067         IEEE80211_ELEMID_TIM_BCAST_REQ  = 94,
 1068         IEEE80211_ELEMID_TIM_BCAST_RESP = 95,
 1069         IEEE80211_ELEMID_TPC            = 150,
 1070         IEEE80211_ELEMID_CCKM           = 156,
 1071         IEEE80211_ELEMID_VENDOR         = 221,  /* vendor private */
 1072 
 1073         /*
 1074          * 802.11s IEs
 1075          * NB: On vanilla Linux still IEEE80211_ELEMID_MESHPEER = 55,
 1076          * but they defined a new with id 117 called PEER_MGMT.
 1077          * NB: complies with open80211
 1078          */
 1079         IEEE80211_ELEMID_MESHCONF       = 113,
 1080         IEEE80211_ELEMID_MESHID         = 114,
 1081         IEEE80211_ELEMID_MESHLINK       = 115,
 1082         IEEE80211_ELEMID_MESHCNGST      = 116,
 1083         IEEE80211_ELEMID_MESHPEER       = 117,
 1084         IEEE80211_ELEMID_MESHCSA        = 118,
 1085         IEEE80211_ELEMID_MESHTIM        = 39, /* XXX: remove */
 1086         IEEE80211_ELEMID_MESHAWAKEW     = 119,
 1087         IEEE80211_ELEMID_MESHBEACONT    = 120,
 1088         /* 121-124 MMCAOP not implemented yet */
 1089         IEEE80211_ELEMID_MESHGANN       = 125,
 1090         IEEE80211_ELEMID_MESHRANN       = 126,
 1091         /* 127 Extended Capabilities */
 1092         IEEE80211_ELEMID_EXTCAP         = 127,
 1093         /* 128-129 reserved */
 1094         IEEE80211_ELEMID_MESHPREQ       = 130,
 1095         IEEE80211_ELEMID_MESHPREP       = 131,
 1096         IEEE80211_ELEMID_MESHPERR       = 132,
 1097         /* 133-136 reserved */
 1098         IEEE80211_ELEMID_MESHPXU        = 137,
 1099         IEEE80211_ELEMID_MESHPXUC       = 138,
 1100         IEEE80211_ELEMID_MESHAH         = 60, /* XXX: remove */
 1101 
 1102         /* 802.11ac-2013, Table 8-54-Element IDs */
 1103         IEEE80211_ELEMID_VHT_CAP        = 191,
 1104         IEEE80211_ELEMID_VHT_OPMODE     = 192,
 1105         IEEE80211_ELEMID_EXTENDED_BSS_LOAD = 193,
 1106         IEEE80211_ELEMID_WIDE_BW_CHANNEL_SWITCH = 194,
 1107         IEEE80211_ELEMID_VHT_PWR_ENV    = 195,
 1108         IEEE80211_ELEMID_CHANNEL_SWITCH_WRAPPER = 196,
 1109         IEEE80211_ELEMID_AID            = 197,
 1110         IEEE80211_ELEMID_QUIET_CHANNEL  = 198,
 1111         IEEE80211_ELEMID_OPMODE_NOTIF   = 199,
 1112 };
 1113 
 1114 struct ieee80211_tim_ie {
 1115         uint8_t         tim_ie;                 /* IEEE80211_ELEMID_TIM */
 1116         uint8_t         tim_len;
 1117         uint8_t         tim_count;              /* DTIM count */
 1118         uint8_t         tim_period;             /* DTIM period */
 1119         uint8_t         tim_bitctl;             /* bitmap control */
 1120         uint8_t         tim_bitmap[1];          /* variable-length bitmap */
 1121 } __packed;
 1122 
 1123 struct ieee80211_country_ie {
 1124         uint8_t         ie;                     /* IEEE80211_ELEMID_COUNTRY */
 1125         uint8_t         len;
 1126         uint8_t         cc[3];                  /* ISO CC+(I)ndoor/(O)utdoor */
 1127         struct {
 1128                 uint8_t schan;                  /* starting channel */
 1129                 uint8_t nchan;                  /* number channels */
 1130                 uint8_t maxtxpwr;               /* tx power cap */
 1131         } __packed band[1];                     /* sub bands (NB: var size) */
 1132 } __packed;
 1133 
 1134 #define IEEE80211_COUNTRY_MAX_BANDS     84      /* max possible bands */
 1135 #define IEEE80211_COUNTRY_MAX_SIZE \
 1136         (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1))
 1137 
 1138 struct ieee80211_bss_load_ie {
 1139         uint8_t         ie;
 1140         uint8_t         len;
 1141         uint16_t        sta_count;      /* station count */
 1142         uint8_t         chan_load;      /* channel utilization */
 1143         uint8_t         aac;            /* available admission capacity */
 1144 } __packed;
 1145 
 1146 struct ieee80211_ap_chan_report_ie {
 1147         uint8_t         ie;
 1148         uint8_t         len;
 1149         uint8_t         i_class; /* operating class */
 1150         /* Annex E, E.1 Country information and operating classes */
 1151         uint8_t         chan_list[0];
 1152 } __packed;
 1153 
 1154 #define IEEE80211_EXTCAP_CMS                    (1ULL <<  0) /* 20/40 BSS coexistence management support */
 1155 #define IEEE80211_EXTCAP_RSVD_1                 (1ULL <<  1)
 1156 #define IEEE80211_EXTCAP_ECS                    (1ULL <<  2) /* extended channel switching */
 1157 #define IEEE80211_EXTCAP_RSVD_3                 (1ULL <<  3)
 1158 #define IEEE80211_EXTCAP_PSMP_CAP               (1ULL <<  4) /* PSMP capability */
 1159 #define IEEE80211_EXTCAP_RSVD_5                 (1ULL <<  5)
 1160 #define IEEE80211_EXTCAP_S_PSMP_SUPP            (1ULL <<  6)
 1161 #define IEEE80211_EXTCAP_EVENT                  (1ULL <<  7)
 1162 #define IEEE80211_EXTCAP_DIAGNOSTICS            (1ULL <<  8)
 1163 #define IEEE80211_EXTCAP_MCAST_DIAG             (1ULL <<  9)
 1164 #define IEEE80211_EXTCAP_LOC_TRACKING           (1ULL << 10)
 1165 #define IEEE80211_EXTCAP_FMS                    (1ULL << 11)
 1166 #define IEEE80211_EXTCAP_PROXY_ARP              (1ULL << 12)
 1167 #define IEEE80211_EXTCAP_CIR                    (1ULL << 13) /* collocated interference reporting */
 1168 #define IEEE80211_EXTCAP_CIVIC_LOC              (1ULL << 14)
 1169 #define IEEE80211_EXTCAP_GEOSPATIAL_LOC         (1ULL << 15)
 1170 #define IEEE80211_EXTCAP_TFS                    (1ULL << 16)
 1171 #define IEEE80211_EXTCAP_WNM_SLEEPMODE          (1ULL << 17)
 1172 #define IEEE80211_EXTCAP_TIM_BROADCAST          (1ULL << 18)
 1173 #define IEEE80211_EXTCAP_BSS_TRANSITION         (1ULL << 19)
 1174 #define IEEE80211_EXTCAP_QOS_TRAF_CAP           (1ULL << 20)
 1175 #define IEEE80211_EXTCAP_AC_STA_COUNT           (1ULL << 21)
 1176 #define IEEE80211_EXTCAP_M_BSSID                (1ULL << 22) /* multiple BSSID field */
 1177 #define IEEE80211_EXTCAP_TIMING_MEAS            (1ULL << 23)
 1178 #define IEEE80211_EXTCAP_CHAN_USAGE             (1ULL << 24)
 1179 #define IEEE80211_EXTCAP_SSID_LIST              (1ULL << 25)
 1180 #define IEEE80211_EXTCAP_DMS                    (1ULL << 26)
 1181 #define IEEE80211_EXTCAP_UTC_TSF_OFFSET         (1ULL << 27)
 1182 #define IEEE80211_EXTCAP_TLDS_BUF_STA_SUPP      (1ULL << 28) /* TDLS peer U-APSP buffer STA support */
 1183 #define IEEE80211_EXTCAP_TLDS_PPSM_SUPP         (1ULL << 29) /* TDLS peer PSM support */
 1184 #define IEEE80211_EXTCAP_TLDS_CH_SW             (1ULL << 30) /* TDLS channel switching */
 1185 #define IEEE80211_EXTCAP_INTERWORKING           (1ULL << 31)
 1186 #define IEEE80211_EXTCAP_QOSMAP                 (1ULL << 32)
 1187 #define IEEE80211_EXTCAP_EBR                    (1ULL << 33)
 1188 #define IEEE80211_EXTCAP_SSPN_IF                (1ULL << 34)
 1189 #define IEEE80211_EXTCAP_RSVD_35                (1ULL << 35)
 1190 #define IEEE80211_EXTCAP_MSGCF_CAP              (1ULL << 36)
 1191 #define IEEE80211_EXTCAP_TLDS_SUPP              (1ULL << 37)
 1192 #define IEEE80211_EXTCAP_TLDS_PROHIB            (1ULL << 38)
 1193 #define IEEE80211_EXTCAP_TLDS_CH_SW_PROHIB      (1ULL << 39) /* TDLS channel switching prohibited */
 1194 #define IEEE80211_EXTCAP_RUF                    (1ULL << 40) /* reject unadmitted frame */
 1195 /* service interval granularity */
 1196 #define IEEE80211_EXTCAP_SIG \
 1197                                 ((1ULL << 41) | (1ULL << 42) | (1ULL << 43))
 1198 #define IEEE80211_EXTCAP_ID_LOC                 (1ULL << 44)
 1199 #define IEEE80211_EXTCAP_U_APSD_COEX            (1ULL << 45)
 1200 #define IEEE80211_EXTCAP_WNM_NOTIFICATION       (1ULL << 46)
 1201 #define IEEE80211_EXTCAP_RSVD_47                (1ULL << 47)
 1202 #define IEEE80211_EXTCAP_SSID                   (1ULL << 48) /* UTF-8 SSID */
 1203 /* bits 49-n are reserved */
 1204 
 1205 struct ieee80211_extcap_ie {
 1206         uint8_t         ie;
 1207         uint8_t         len;
 1208 } __packed;
 1209 
 1210 /*
 1211  * 802.11h Quiet Time Element.
 1212  */
 1213 struct ieee80211_quiet_ie {
 1214         uint8_t         quiet_ie;               /* IEEE80211_ELEMID_QUIET */
 1215         uint8_t         len;
 1216         uint8_t         tbttcount;              /* quiet start */
 1217         uint8_t         period;                 /* beacon intervals between quiets */
 1218         uint16_t        duration;               /* TUs of each quiet*/
 1219         uint16_t        offset;                 /* TUs of from TBTT of quiet start */
 1220 } __packed;
 1221 
 1222 /*
 1223  * 802.11h Channel Switch Announcement (CSA).
 1224  */
 1225 struct ieee80211_csa_ie {
 1226         uint8_t         csa_ie;         /* IEEE80211_ELEMID_CHANSWITCHANN */
 1227         uint8_t         csa_len;
 1228         uint8_t         csa_mode;               /* Channel Switch Mode */
 1229         uint8_t         csa_newchan;            /* New Channel Number */
 1230         uint8_t         csa_count;              /* Channel Switch Count */
 1231 } __packed;
 1232 
 1233 /*
 1234  * Note the min acceptable CSA count is used to guard against
 1235  * malicious CSA injection in station mode.  Defining this value
 1236  * as other than 0 violates the 11h spec.
 1237  */
 1238 #define IEEE80211_CSA_COUNT_MIN 2
 1239 #define IEEE80211_CSA_COUNT_MAX 255
 1240 
 1241 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */
 1242 #define IEEE80211_RATE_BASIC            0x80
 1243 #define IEEE80211_RATE_VAL              0x7f
 1244 #define IEEE80211_RV(v)                 ((v) & IEEE80211_RATE_VAL)
 1245 
 1246 /* ERP information element flags */
 1247 #define IEEE80211_ERP_NON_ERP_PRESENT   0x01
 1248 #define IEEE80211_ERP_USE_PROTECTION    0x02
 1249 #define IEEE80211_ERP_LONG_PREAMBLE     0x04
 1250 
 1251 #define IEEE80211_ERP_BITS \
 1252         "\2\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE"
 1253 
 1254 #define ATH_OUI                 0x7f0300        /* Atheros OUI */
 1255 #define ATH_OUI_TYPE            0x01            /* Atheros protocol ie */
 1256 
 1257 /* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */
 1258 #define TDMA_OUI                ATH_OUI
 1259 #define TDMA_OUI_TYPE           0x02            /* TDMA protocol ie */
 1260 
 1261 #define BCM_OUI                 0x4c9000        /* Broadcom OUI */
 1262 #define BCM_OUI_HTCAP           51              /* pre-draft HTCAP ie */
 1263 #define BCM_OUI_HTINFO          52              /* pre-draft HTINFO ie */
 1264 
 1265 #define WPA_OUI                 0xf25000
 1266 #define WPA_OUI_TYPE            0x01
 1267 #define WPA_VERSION             1               /* current supported version */
 1268 
 1269 #define WPA_CSE_NULL            0x00
 1270 #define WPA_CSE_WEP40           0x01
 1271 #define WPA_CSE_TKIP            0x02
 1272 #define WPA_CSE_CCMP            0x04
 1273 #define WPA_CSE_WEP104          0x05
 1274 
 1275 #define WPA_ASE_NONE            0x00
 1276 #define WPA_ASE_8021X_UNSPEC    0x01
 1277 #define WPA_ASE_8021X_PSK       0x02
 1278 
 1279 #define WPS_OUI_TYPE            0x04
 1280 
 1281 #define RSN_OUI                 0xac0f00
 1282 #define RSN_VERSION             1               /* current supported version */
 1283 
 1284 #define RSN_CSE_NULL            0x00
 1285 #define RSN_CSE_WEP40           0x01
 1286 #define RSN_CSE_TKIP            0x02
 1287 #define RSN_CSE_WRAP            0x03
 1288 #define RSN_CSE_CCMP            0x04
 1289 #define RSN_CSE_WEP104          0x05
 1290 
 1291 #define RSN_ASE_NONE            0x00
 1292 #define RSN_ASE_8021X_UNSPEC    0x01
 1293 #define RSN_ASE_8021X_PSK       0x02
 1294 
 1295 #define RSN_CAP_PREAUTH         0x01
 1296 
 1297 #define WME_OUI                 0xf25000
 1298 #define WME_OUI_TYPE            0x02
 1299 #define WME_INFO_OUI_SUBTYPE    0x00
 1300 #define WME_PARAM_OUI_SUBTYPE   0x01
 1301 #define WME_VERSION             1
 1302 
 1303 /* WME stream classes */
 1304 #define WME_AC_BE       0               /* best effort */
 1305 #define WME_AC_BK       1               /* background */
 1306 #define WME_AC_VI       2               /* video */
 1307 #define WME_AC_VO       3               /* voice */
 1308 
 1309 /*
 1310  * AUTH management packets
 1311  *
 1312  *      octet algo[2]
 1313  *      octet seq[2]
 1314  *      octet status[2]
 1315  *      octet chal.id
 1316  *      octet chal.length
 1317  *      octet chal.text[253]            NB: 1-253 bytes
 1318  */
 1319 
 1320 /* challenge length for shared key auth */
 1321 #define IEEE80211_CHALLENGE_LEN         128
 1322 
 1323 #define IEEE80211_AUTH_ALG_OPEN         0x0000
 1324 #define IEEE80211_AUTH_ALG_SHARED       0x0001
 1325 #define IEEE80211_AUTH_ALG_LEAP         0x0080
 1326 
 1327 enum {
 1328         IEEE80211_AUTH_OPEN_REQUEST             = 1,
 1329         IEEE80211_AUTH_OPEN_RESPONSE            = 2,
 1330 };
 1331 
 1332 enum {
 1333         IEEE80211_AUTH_SHARED_REQUEST           = 1,
 1334         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
 1335         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
 1336         IEEE80211_AUTH_SHARED_PASS              = 4,
 1337 };
 1338 
 1339 /*
 1340  * Reason and status codes.
 1341  *
 1342  * Reason codes are used in management frames to indicate why an
 1343  * action took place (e.g. on disassociation).  Status codes are
 1344  * used in management frames to indicate the result of an operation.
 1345  *
 1346  * Unlisted codes are reserved
 1347  */
 1348 
 1349 enum {
 1350         IEEE80211_REASON_UNSPECIFIED            = 1,
 1351         IEEE80211_REASON_AUTH_EXPIRE            = 2,
 1352         IEEE80211_REASON_AUTH_LEAVE             = 3,
 1353         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
 1354         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
 1355         IEEE80211_REASON_NOT_AUTHED             = 6,
 1356         IEEE80211_REASON_NOT_ASSOCED            = 7,
 1357         IEEE80211_REASON_ASSOC_LEAVE            = 8,
 1358         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
 1359         IEEE80211_REASON_DISASSOC_PWRCAP_BAD    = 10,   /* 11h */
 1360         IEEE80211_REASON_DISASSOC_SUPCHAN_BAD   = 11,   /* 11h */
 1361         IEEE80211_REASON_IE_INVALID             = 13,   /* 11i */
 1362         IEEE80211_REASON_MIC_FAILURE            = 14,   /* 11i */
 1363         IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,   /* 11i */
 1364         IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */
 1365         IEEE80211_REASON_IE_IN_4WAY_DIFFERS     = 17,   /* 11i */
 1366         IEEE80211_REASON_GROUP_CIPHER_INVALID   = 18,   /* 11i */
 1367         IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19,   /* 11i */
 1368         IEEE80211_REASON_AKMP_INVALID           = 20,   /* 11i */
 1369         IEEE80211_REASON_UNSUPP_RSN_IE_VERSION  = 21,   /* 11i */
 1370         IEEE80211_REASON_INVALID_RSN_IE_CAP     = 22,   /* 11i */
 1371         IEEE80211_REASON_802_1X_AUTH_FAILED     = 23,   /* 11i */
 1372         IEEE80211_REASON_CIPHER_SUITE_REJECTED  = 24,   /* 11i */
 1373         IEEE80211_REASON_UNSPECIFIED_QOS        = 32,   /* 11e */
 1374         IEEE80211_REASON_INSUFFICIENT_BW        = 33,   /* 11e */
 1375         IEEE80211_REASON_TOOMANY_FRAMES         = 34,   /* 11e */
 1376         IEEE80211_REASON_OUTSIDE_TXOP           = 35,   /* 11e */
 1377         IEEE80211_REASON_LEAVING_QBSS           = 36,   /* 11e */
 1378         IEEE80211_REASON_BAD_MECHANISM          = 37,   /* 11e */
 1379         IEEE80211_REASON_SETUP_NEEDED           = 38,   /* 11e */
 1380         IEEE80211_REASON_TIMEOUT                = 39,   /* 11e */
 1381 
 1382         IEEE80211_REASON_PEER_LINK_CANCELED     = 52,   /* 11s */
 1383         IEEE80211_REASON_MESH_MAX_PEERS         = 53,   /* 11s */
 1384         IEEE80211_REASON_MESH_CPVIOLATION       = 54,   /* 11s */
 1385         IEEE80211_REASON_MESH_CLOSE_RCVD        = 55,   /* 11s */
 1386         IEEE80211_REASON_MESH_MAX_RETRIES       = 56,   /* 11s */
 1387         IEEE80211_REASON_MESH_CONFIRM_TIMEOUT   = 57,   /* 11s */
 1388         IEEE80211_REASON_MESH_INVALID_GTK       = 58,   /* 11s */
 1389         IEEE80211_REASON_MESH_INCONS_PARAMS     = 59,   /* 11s */
 1390         IEEE80211_REASON_MESH_INVALID_SECURITY  = 60,   /* 11s */
 1391         IEEE80211_REASON_MESH_PERR_NO_PROXY     = 61,   /* 11s */
 1392         IEEE80211_REASON_MESH_PERR_NO_FI        = 62,   /* 11s */
 1393         IEEE80211_REASON_MESH_PERR_DEST_UNREACH = 63,   /* 11s */
 1394         IEEE80211_REASON_MESH_MAC_ALRDY_EXISTS_MBSS = 64, /* 11s */
 1395         IEEE80211_REASON_MESH_CHAN_SWITCH_REG   = 65,   /* 11s */
 1396         IEEE80211_REASON_MESH_CHAN_SWITCH_UNSPEC = 66,  /* 11s */
 1397 
 1398         IEEE80211_STATUS_SUCCESS                = 0,
 1399         IEEE80211_STATUS_UNSPECIFIED            = 1,
 1400         IEEE80211_STATUS_CAPINFO                = 10,
 1401         IEEE80211_STATUS_NOT_ASSOCED            = 11,
 1402         IEEE80211_STATUS_OTHER                  = 12,
 1403         IEEE80211_STATUS_ALG                    = 13,
 1404         IEEE80211_STATUS_SEQUENCE               = 14,
 1405         IEEE80211_STATUS_CHALLENGE              = 15,
 1406         IEEE80211_STATUS_TIMEOUT                = 16,
 1407         IEEE80211_STATUS_TOOMANY                = 17,
 1408         IEEE80211_STATUS_BASIC_RATE             = 18,
 1409         IEEE80211_STATUS_SP_REQUIRED            = 19,   /* 11b */
 1410         IEEE80211_STATUS_PBCC_REQUIRED          = 20,   /* 11b */
 1411         IEEE80211_STATUS_CA_REQUIRED            = 21,   /* 11b */
 1412         IEEE80211_STATUS_SPECMGMT_REQUIRED      = 22,   /* 11h */
 1413         IEEE80211_STATUS_PWRCAP_REQUIRED        = 23,   /* 11h */
 1414         IEEE80211_STATUS_SUPCHAN_REQUIRED       = 24,   /* 11h */
 1415         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,   /* 11g */
 1416         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,   /* 11g */
 1417         IEEE80211_STATUS_MISSING_HT_CAPS        = 27,   /* 11n D3.0 */
 1418         IEEE80211_STATUS_INVALID_IE             = 40,   /* 11i */
 1419         IEEE80211_STATUS_GROUP_CIPHER_INVALID   = 41,   /* 11i */
 1420         IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42,  /* 11i */
 1421         IEEE80211_STATUS_AKMP_INVALID           = 43,   /* 11i */
 1422         IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION  = 44,   /* 11i */
 1423         IEEE80211_STATUS_INVALID_RSN_IE_CAP     = 45,   /* 11i */
 1424         IEEE80211_STATUS_CIPHER_SUITE_REJECTED  = 46,   /* 11i */
 1425 };
 1426 
 1427 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
 1428 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
 1429 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
 1430 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
 1431 #define IEEE80211_WEP_TOTLEN            (IEEE80211_WEP_IVLEN + \
 1432                                          IEEE80211_WEP_KIDLEN + \
 1433                                          IEEE80211_WEP_CRCLEN)
 1434 #define IEEE80211_WEP_NKID              4       /* number of key ids */
 1435 
 1436 /*
 1437  * 802.11i defines an extended IV for use with non-WEP ciphers.
 1438  * When the EXTIV bit is set in the key id byte an additional
 1439  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 1440  * EXTIV bit is likewise set but the 8 bytes represent the
 1441  * CCMP header rather than IV+extended-IV.
 1442  */
 1443 #define IEEE80211_WEP_EXTIV             0x20
 1444 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
 1445 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
 1446 
 1447 #define IEEE80211_CRC_LEN               4
 1448 
 1449 /*
 1450  * Maximum acceptable MTU is:
 1451  *      IEEE80211_MAX_LEN - WEP overhead - CRC -
 1452  *              QoS overhead - RSN/WPA overhead
 1453  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
 1454  * mtu is Ethernet-compatible; it's set by ether_ifattach.
 1455  */
 1456 #define IEEE80211_MTU_MAX               2290
 1457 #define IEEE80211_MTU_MIN               32
 1458 
 1459 #define IEEE80211_MAX_LEN               (2300 + IEEE80211_CRC_LEN + \
 1460     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
 1461 #define IEEE80211_ACK_LEN \
 1462         (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
 1463 #define IEEE80211_MIN_LEN \
 1464         (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
 1465 
 1466 /*
 1467  * The 802.11 spec says at most 2007 stations may be
 1468  * associated at once.  For most AP's this is way more
 1469  * than is feasible so we use a default of IEEE80211_AID_DEF.
 1470  * This number may be overridden by the driver and/or by
 1471  * user configuration but may not be less than IEEE80211_AID_MIN
 1472  * (see _ieee80211.h for implementation-specific settings).
 1473  */
 1474 #define IEEE80211_AID_MAX               2007
 1475 
 1476 #define IEEE80211_AID(b)        ((b) &~ 0xc000)
 1477 
 1478 /* 
 1479  * RTS frame length parameters.  The default is specified in
 1480  * the 802.11 spec as 512; we treat it as implementation-dependent
 1481  * so it's defined in ieee80211_var.h.  The max may be wrong
 1482  * for jumbo frames.
 1483  */
 1484 #define IEEE80211_RTS_MIN               1
 1485 #define IEEE80211_RTS_MAX               2346
 1486 
 1487 /* 
 1488  * TX fragmentation parameters.  As above for RTS, we treat
 1489  * default as implementation-dependent so define it elsewhere.
 1490  */
 1491 #define IEEE80211_FRAG_MIN              256
 1492 #define IEEE80211_FRAG_MAX              2346
 1493 
 1494 /*
 1495  * Beacon interval (TU's).  Min+max come from WiFi requirements.
 1496  * As above, we treat default as implementation-dependent so
 1497  * define it elsewhere.
 1498  */
 1499 #define IEEE80211_BINTVAL_MAX   1000    /* max beacon interval (TU's) */
 1500 #define IEEE80211_BINTVAL_MIN   25      /* min beacon interval (TU's) */
 1501 
 1502 /*
 1503  * DTIM period (beacons).  Min+max are not really defined
 1504  * by the protocol but we want them publicly visible so
 1505  * define them here.
 1506  */
 1507 #define IEEE80211_DTIM_MAX      15      /* max DTIM period */
 1508 #define IEEE80211_DTIM_MIN      1       /* min DTIM period */
 1509 
 1510 /*
 1511  * Beacon miss threshold (beacons).  As for DTIM, we define
 1512  * them here to be publicly visible.  Note the max may be
 1513  * clamped depending on device capabilities.
 1514  */
 1515 #define IEEE80211_HWBMISS_MIN   1
 1516 #define IEEE80211_HWBMISS_MAX   255
 1517 
 1518 /*
 1519  * 802.11 frame duration definitions.
 1520  */
 1521 
 1522 struct ieee80211_duration {
 1523         uint16_t        d_rts_dur;
 1524         uint16_t        d_data_dur;
 1525         uint16_t        d_plcp_len;
 1526         uint8_t         d_residue;      /* unused octets in time slot */
 1527 };
 1528 
 1529 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
 1530 #define IEEE80211_DUR_TU                1024
 1531 
 1532 /* IEEE 802.11b durations for DSSS PHY in microseconds */
 1533 #define IEEE80211_DUR_DS_LONG_PREAMBLE  144
 1534 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
 1535 
 1536 #define IEEE80211_DUR_DS_SLOW_PLCPHDR   48
 1537 #define IEEE80211_DUR_DS_FAST_PLCPHDR   24
 1538 #define IEEE80211_DUR_DS_SLOW_ACK       112
 1539 #define IEEE80211_DUR_DS_FAST_ACK       56
 1540 #define IEEE80211_DUR_DS_SLOW_CTS       112
 1541 #define IEEE80211_DUR_DS_FAST_CTS       56
 1542 
 1543 #define IEEE80211_DUR_DS_SLOT           20
 1544 #define IEEE80211_DUR_DS_SIFS           10
 1545 #define IEEE80211_DUR_DS_PIFS   (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
 1546 #define IEEE80211_DUR_DS_DIFS   (IEEE80211_DUR_DS_SIFS + \
 1547                                  2 * IEEE80211_DUR_DS_SLOT)
 1548 #define IEEE80211_DUR_DS_EIFS   (IEEE80211_DUR_DS_SIFS + \
 1549                                  IEEE80211_DUR_DS_SLOW_ACK + \
 1550                                  IEEE80211_DUR_DS_LONG_PREAMBLE + \
 1551                                  IEEE80211_DUR_DS_SLOW_PLCPHDR + \
 1552                                  IEEE80211_DUR_DIFS)
 1553 
 1554 #endif /* _NET80211_IEEE80211_H_ */

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