include/sys/net80211_proto.h

   1 /*
   2  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*
   7  * Copyright (c) 2001 Atsushi Onoe
   8  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * Alternatively, this software may be distributed under the terms of the
  23  * GNU General Public License ("GPL") version 2 as published by the Free
  24  * Software Foundation.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  27  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  28  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  29  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  30  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  31  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  35  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _SYS_NET80211_PROTO_H
  39 #define _SYS_NET80211_PROTO_H
  40
  41 /*
  42  * 802.11 protocol definitions
  43  */
  44
  45 #ifdef  __cplusplus
  46 extern "C" {
  47 #endif
  48
  49 #define IEEE80211_ADDR_LEN      6       /* size of 802.11 address */
  50 #define IEEE80211_ADDR_COPY(dst, src)   \
  51         ((void) bcopy(src, dst, IEEE80211_ADDR_LEN))
  52 #define IEEE80211_ADDR_EQ(a1, a2)       \
  53         (bcmp(a1, a2, IEEE80211_ADDR_LEN) == 0)
  54 /* is 802.11 address multicast/broadcast? */
  55 #define IEEE80211_IS_MULTICAST(addr)    \
  56         ((((uint8_t *)addr)[0]) & 0x01)
  57
  58 /*
  59  * Size of an ACK control frame in bytes.
  60  */
  61 #define IEEE80211_ACK_SIZE      (2 + 2 + IEEE80211_ADDR_LEN + 4)
  62
  63 #define WME_NUM_AC              4       /* 4 AC categories */
  64
  65 /*
  66  * The formation of some management frames requires guidance to
  67  * deal with legacy clients.  When the client is identified as
  68  * "legacy 11b" this parameter can be passed in the arg param of a
  69  * IEEE80211_SEND_MGMT call.
  70  */
  71 #define IEEE80211_SEND_LEGACY_11B       0x1     /* legacy 11b client */
  72 #define IEEE80211_SEND_LEGACY_11        0x2     /* other legacy client */
  73 #define IEEE80211_SEND_LEGACY           0x3     /* any legacy client */
  74
  75 /*
  76  * Protocol Physical Layer
  77  */
  78
  79 /* XXX not really a mode; there are really multiple PHY's */
  80 enum ieee80211_phymode {
  81         IEEE80211_MODE_AUTO     = 0,    /* autoselect */
  82         IEEE80211_MODE_11A      = 1,    /* 5GHz, OFDM */
  83         IEEE80211_MODE_11B      = 2,    /* 2GHz, CCK */
  84         IEEE80211_MODE_11G      = 3,    /* 2GHz, OFDM */
  85         IEEE80211_MODE_FH       = 4,    /* 2GHz, GFSK */
  86         IEEE80211_MODE_TURBO_A  = 5,    /* 5GHz, OFDM, 2x clock */
  87         IEEE80211_MODE_TURBO_G  = 6,    /* 2GHz, OFDM, 2x clock */
  88         IEEE80211_MODE_STURBO_A = 7,    /* 5GHz, OFDM, 2x clock, static */
  89         IEEE80211_MODE_11NA     = 8,    /* 5GHz, w/ HT */
  90         IEEE80211_MODE_11NG     = 9     /* 2GHz, w/ HT */
  91 };
  92 #define IEEE80211_MODE_MAX      (IEEE80211_MODE_11NG + 1)
  93
  94 enum ieee80211_phytype {
  95         IEEE80211_T_DS,         /* direct sequence spread spectrum */
  96         IEEE80211_T_FH,         /* frequency hopping */
  97         IEEE80211_T_OFDM,       /* frequency division multiplexing */
  98         IEEE80211_T_TURBO,      /* high rate OFDM, aka turbo mode */
  99         IEEE80211_T_HT          /* high throughput, full GI */
 100 };
 101 #define IEEE80211_T_CCK IEEE80211_T_DS  /* more common nomenclature */
 102
 103 enum ieee80211_opmode {
 104         IEEE80211_M_STA         = 1,    /* infrastructure station */
 105         IEEE80211_M_IBSS        = 0,    /* IBSS (adhoc) station */
 106         IEEE80211_M_AHDEMO      = 3,    /* Old lucent compatible adhoc demo */
 107         IEEE80211_M_HOSTAP      = 6,    /* Software Access Point */
 108         IEEE80211_M_MONITOR     = 8     /* Monitor mode */
 109 };
 110
 111 /*
 112  * 802.11g protection mode.
 113  */
 114 enum ieee80211_protmode {
 115         IEEE80211_PROT_NONE     = 0,    /* no protection */
 116         IEEE80211_PROT_CTSONLY  = 1,    /* CTS to self */
 117         IEEE80211_PROT_RTSCTS   = 2     /* RTS-CTS */
 118 };
 119
 120 /*
 121  * generic definitions for IEEE 802.11 frames
 122  */
 123 #pragma pack(1)
 124 struct ieee80211_frame {
 125         uint8_t         i_fc[2]; /* [0]-protocol version, [1]-type & subtype */
 126         uint8_t         i_dur[2];
 127         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 128         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 129         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
 130         uint8_t         i_seq[2];
 131         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
 132         /* see below */
 133 };
 134
 135 struct ieee80211_qosframe {
 136         uint8_t         i_fc[2];
 137         uint8_t         i_dur[2];
 138         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 139         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 140         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
 141         uint8_t         i_seq[2];
 142         uint8_t         i_qos[2];
 143         /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
 144         /* see below */
 145 };
 146
 147 struct ieee80211_qoscntl {
 148         uint8_t         i_qos[2];
 149 };
 150
 151 struct ieee80211_frame_addr4 {
 152         uint8_t         i_fc[2];
 153         uint8_t         i_dur[2];
 154         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 155         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 156         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
 157         uint8_t         i_seq[2];
 158         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
 159 };
 160
 161 struct ieee80211_qosframe_addr4 {
 162         uint8_t         i_fc[2];
 163         uint8_t         i_dur[2];
 164         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 165         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 166         uint8_t         i_addr3[IEEE80211_ADDR_LEN];
 167         uint8_t         i_seq[2];
 168         uint8_t         i_addr4[IEEE80211_ADDR_LEN];
 169         uint8_t         i_qos[2];
 170 };
 171
 172 /* Start part(LLC and SNAP) of payload of IEEE80211 frame */
 173 struct ieee80211_llc {
 174         /* LLC */
 175         uint8_t         illc_dsap;
 176         uint8_t         illc_ssap;
 177         uint8_t         illc_control;
 178         /* SNAP */
 179         uint8_t         illc_oc[3]; /* protocol ID or organization code */
 180         uint16_t        illc_ether_type; /* ethernet type */
 181 };
 182
 183 /*
 184  * Management Notification Frame
 185  */
 186 struct ieee80211_mnf {
 187         uint8_t         mnf_category;
 188         uint8_t         mnf_action;
 189         uint8_t         mnf_dialog;
 190         uint8_t         mnf_status;
 191 };
 192
 193 /*
 194  * Control frames.
 195  */
 196 struct ieee80211_frame_min {
 197         uint8_t         i_fc[2];
 198         uint8_t         i_dur[2];
 199         uint8_t         i_addr1[IEEE80211_ADDR_LEN];
 200         uint8_t         i_addr2[IEEE80211_ADDR_LEN];
 201         /* FCS */
 202 };
 203
 204 struct ieee80211_frame_rts {
 205         uint8_t         i_fc[2];
 206         uint8_t         i_dur[2];
 207         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 208         uint8_t         i_ta[IEEE80211_ADDR_LEN];
 209         /* FCS */
 210 };
 211
 212 struct ieee80211_frame_cts {
 213         uint8_t         i_fc[2];
 214         uint8_t         i_dur[2];
 215         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 216         /* FCS */
 217 };
 218
 219 struct ieee80211_frame_ack {
 220         uint8_t         i_fc[2];
 221         uint8_t         i_dur[2];
 222         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 223         /* FCS */
 224 };
 225
 226 struct ieee80211_frame_pspoll {
 227         uint8_t         i_fc[2];
 228         uint8_t         i_aid[2];
 229         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
 230         uint8_t         i_ta[IEEE80211_ADDR_LEN];
 231         /* FCS */
 232 };
 233
 234 struct ieee80211_frame_cfend {          /* NB: also CF-End+CF-Ack */
 235         uint8_t         i_fc[2];
 236         uint8_t         i_dur[2];       /* should be zero */
 237         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 238         uint8_t         i_bssid[IEEE80211_ADDR_LEN];
 239         /* FCS */
 240 };
 241
 242 struct ieee80211_frame_bar {
 243         uint8_t         i_fc[2];
 244         uint8_t         i_dur[2];
 245         uint8_t         i_ra[IEEE80211_ADDR_LEN];
 246         uint8_t         i_ta[IEEE80211_ADDR_LEN];
 247         uint16_t        i_ctl;
 248         uint16_t        i_seq;
 249         /* FCS */
 250 };
 251
 252 struct ieee80211_tim_ie {
 253         uint8_t         tim_ie;                 /* IEEE80211_ELEMID_TIM */
 254         uint8_t         tim_len;
 255         uint8_t         tim_count;              /* DTIM count */
 256         uint8_t         tim_period;             /* DTIM period */
 257         uint8_t         tim_bitctl;             /* bitmap control */
 258         uint8_t         tim_bitmap[1];          /* variable-length bitmap */
 259 };
 260
 261 /*
 262  * 802.11i/WPA information element (maximally sized).
 263  */
 264 struct ieee80211_ie_wpa {
 265         uint8_t         wpa_id;          /* IEEE80211_ELEMID_VENDOR */
 266         uint8_t         wpa_len;         /* length in bytes */
 267         uint8_t         wpa_oui[3];      /* 0x00, 0x50, 0xf2 */
 268         uint8_t         wpa_type;        /* OUI type */
 269         uint16_t        wpa_version;     /* spec revision */
 270         uint32_t        wpa_mcipher[1];  /* multicast/group key cipher */
 271         uint16_t        wpa_uciphercnt;  /* # pairwise key ciphers */
 272         uint32_t        wpa_uciphers[8]; /* ciphers */
 273         uint16_t        wpa_authselcnt;  /* authentication selector cnt */
 274         uint32_t        wpa_authsels[8]; /* selectors */
 275         uint16_t        wpa_caps;        /* 802.11i capabilities */
 276         uint16_t        wpa_pmkidcnt;    /* 802.11i pmkid count */
 277         uint16_t        wpa_pmkids[8];   /* 802.11i pmkids */
 278 };
 279
 280 /*
 281  * WME AC parameter field
 282  */
 283 struct ieee80211_wme_acparams {
 284         uint8_t         acp_aci_aifsn;
 285         uint8_t         acp_logcwminmax;
 286         uint16_t        acp_txop;
 287 };
 288
 289 /*
 290  * WME Parameter Element
 291  */
 292 struct ieee80211_wme_param {
 293         uint8_t         wme_id;
 294         uint8_t         wme_len;
 295         uint8_t         wme_oui[3];
 296         uint8_t         wme_oui_type;
 297         uint8_t         wme_oui_sybtype;
 298         uint8_t         wme_version;
 299         uint8_t         wme_qosInfo;
 300 #define WME_QOSINFO_COUNT       0x0f    /* Mask for param count field */
 301         uint8_t         wme_reserved;
 302         struct ieee80211_wme_acparams   wme_acParams[WME_NUM_AC];
 303 };
 304
 305 /*
 306  * WME/802.11e information element.
 307  */
 308 struct ieee80211_wme_info {
 309         uint8_t         wme_id;         /* IEEE80211_ELEMID_VENDOR */
 310         uint8_t         wme_len;        /* length in bytes */
 311         uint8_t         wme_oui[3];     /* 0x00, 0x50, 0xf2 */
 312         uint8_t         wme_type;       /* OUI type */
 313         uint8_t         wme_subtype;    /* OUI subtype */
 314         uint8_t         wme_version;    /* spec revision */
 315         uint8_t         wme_info;       /* QoS info */
 316 };
 317
 318 /*
 319  * WME/802.11e Tspec Element
 320  */
 321 struct ieee80211_wme_tspec {
 322         uint8_t         ts_id;
 323         uint8_t         ts_len;
 324         uint8_t         ts_oui[3];
 325         uint8_t         ts_oui_type;
 326         uint8_t         ts_oui_subtype;
 327         uint8_t         ts_version;
 328         uint8_t         ts_tsinfo[3];
 329         uint8_t         ts_nom_msdu[2];
 330         uint8_t         ts_max_msdu[2];
 331         uint8_t         ts_min_svc[4];
 332         uint8_t         ts_max_svc[4];
 333         uint8_t         ts_inactv_intv[4];
 334         uint8_t         ts_susp_intv[4];
 335         uint8_t         ts_start_svc[4];
 336         uint8_t         ts_min_rate[4];
 337         uint8_t         ts_mean_rate[4];
 338         uint8_t         ts_max_burst[4];
 339         uint8_t         ts_min_phy[4];
 340         uint8_t         ts_peak_rate[4];
 341         uint8_t         ts_delay[4];
 342         uint8_t         ts_surplus[2];
 343         uint8_t         ts_medium_time[2];
 344 };
 345
 346 /*
 347  * 802.11n Management Action Frames
 348  */
 349 /* generic frame format */
 350 struct ieee80211_action {
 351         uint8_t         ia_category;
 352         uint8_t         ia_action;
 353 };
 354
 355 /* HT - recommended transmission channel width */
 356 struct ieee80211_action_ht_txchwidth {
 357         struct ieee80211_action at_header;
 358         uint8_t         at_chwidth;
 359 };
 360
 361 struct ieee80211_action_ht_mimopowersave {
 362         struct ieee80211_action am_header;
 363         uint8_t         am_control;
 364 };
 365
 366 /* BA - ADDBA request */
 367 struct ieee80211_action_ba_addbarequest {
 368         struct ieee80211_action rq_header;
 369         uint8_t         rq_dialogtoken;
 370         uint16_t        rq_baparamset;
 371         uint16_t        rq_batimeout;           /* in TUs */
 372         uint16_t        rq_baseqctl;
 373 };
 374
 375 /* BA - ADDBA response */
 376 struct ieee80211_action_ba_addbaresponse {
 377         struct ieee80211_action rs_header;
 378         uint8_t         rs_dialogtoken;
 379         uint16_t        rs_statuscode;
 380         uint16_t        rs_baparamset;
 381         uint16_t        rs_batimeout;           /* in TUs */
 382 };
 383
 384 /* BA - DELBA */
 385 struct ieee80211_action_ba_delba {
 386         struct ieee80211_action dl_header;
 387         uint16_t        dl_baparamset;
 388         uint16_t        dl_reasoncode;
 389 };
 390
 391 struct ieee80211_ba_request {
 392         uint16_t        rq_barctl;
 393         uint16_t        rq_barseqctl;
 394 };
 395
 396 /*
 397  * 802.11n HT Capability IE
 398  * NB: these reflect D1.10
 399  */
 400 struct ieee80211_ie_htcap {
 401         uint8_t         hc_id;                  /* element ID */
 402         uint8_t         hc_len;                 /* length in bytes */
 403         uint16_t        hc_cap;                 /* HT caps (see below) */
 404         uint8_t         hc_param;               /* HT params (see below) */
 405         uint8_t         hc_mcsset[16];          /* supported MCS set */
 406         uint16_t        hc_extcap;              /* extended HT capabilities */
 407         uint32_t        hc_txbf;                /* txbf capabilities */
 408         uint8_t         hc_antenna;             /* antenna capabilities */
 409 };
 410
 411 /*
 412  * 802.11n HT Information IE
 413  */
 414 struct ieee80211_ie_htinfo {
 415         uint8_t         hi_id;                  /* element ID */
 416         uint8_t         hi_len;                 /* length in bytes */
 417         uint8_t         hi_ctrlchannel;         /* primary channel */
 418         uint8_t         hi_byte1;               /* ht ie byte 1 */
 419         uint8_t         hi_byte2;               /* ht ie byte 2 */
 420         uint8_t         hi_byte3;               /* ht ie byte 3 */
 421         uint16_t        hi_byte45;              /* ht ie bytes 4+5 */
 422         uint8_t         hi_basicmcsset[16];     /* basic MCS set */
 423 };
 424 #pragma pack()
 425
 426 #define IEEE80211_FC0_VERSION_MASK              0x03
 427 #define IEEE80211_FC0_VERSION_SHIFT             0
 428 #define IEEE80211_FC0_VERSION_0                 0x00
 429 #define IEEE80211_FC0_TYPE_MASK                 0x0c
 430 #define IEEE80211_FC0_TYPE_SHIFT                2
 431 #define IEEE80211_FC0_TYPE_MGT                  0x00
 432 #define IEEE80211_FC0_TYPE_CTL                  0x04
 433 #define IEEE80211_FC0_TYPE_DATA                 0x08
 434 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
 435 #define IEEE80211_FC0_SUBTYPE_SHIFT             4
 436 /* for TYPE_MGT */
 437 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
 438 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
 439 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
 440 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
 441 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
 442 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
 443 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
 444 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
 445 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
 446 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
 447 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
 448 #define IEEE80211_FC0_SUBTYPE_ACTION            0xd0
 449 /* for TYPE_CTL */
 450 #define IEEE80211_FC0_SUBTYPE_BAR               0x80
 451 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
 452 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
 453 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
 454 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
 455 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
 456 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
 457 /* for TYPE_DATA (bit combination) */
 458 #define IEEE80211_FC0_SUBTYPE_DATA              0x00
 459 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
 460 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
 461 #define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30
 462 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
 463 #define IEEE80211_FC0_SUBTYPE_CFACK             0x50
 464 #define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60
 465 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70
 466 #define IEEE80211_FC0_SUBTYPE_QOS               0x80
 467 #define IEEE80211_FC0_SUBTYPE_QOS_NULL          0xc0
 468
 469 #define IEEE80211_FC1_DIR_MASK                  0x03
 470 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
 471 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
 472 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
 473 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
 474
 475 #define IEEE80211_FC1_MORE_FRAG                 0x04
 476 #define IEEE80211_FC1_RETRY                     0x08
 477 #define IEEE80211_FC1_PWR_MGT                   0x10
 478 #define IEEE80211_FC1_MORE_DATA                 0x20
 479 #define IEEE80211_FC1_WEP                       0x40
 480 #define IEEE80211_FC1_ORDER                     0x80
 481
 482 #define IEEE80211_SEQ_FRAG_MASK                 0x000f
 483 #define IEEE80211_SEQ_FRAG_SHIFT                0
 484 #define IEEE80211_SEQ_SEQ_MASK                  0xfff0
 485 #define IEEE80211_SEQ_SEQ_SHIFT                 4       /* 4bit frag number */
 486 #define IEEE80211_SEQ_RANGE                     4096
 487
 488 #define IEEE80211_SEQ_ADD(seq, incr) \
 489         (((seq) + (incr)) & (IEEE80211_SEQ_RANGE - 1))
 490 #define IEEE80211_SEQ_INC(seq)  IEEE80211_SEQ_ADD(seq, 1)
 491 #define IEEE80211_SEQ_SUB(a, b) \
 492         (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE - 1))
 493
 494 #define IEEE80211_SEQ_BA_RANGE                  2048    /* 2^11 */
 495 #define IEEE80211_SEQ_BA_BEFORE(a, b) \
 496         (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1)
 497
 498 /* Length of management frame variable-length components in bytes */
 499 #define IEEE80211_NWID_LEN                      32      /* SSID */
 500 #define IEEE80211_FH_LEN                        5       /* FH parameters */
 501 #define IEEE80211_DS_LEN                        1       /* DS parameters */
 502 #define IEEE80211_IBSS_LEN                      4       /* IBSS parameters */
 503 #define IEEE80211_ERP_LEN                       1       /* ERP information */
 504
 505 #define IEEE80211_QOS_TXOP                      0x00ff
 506 /* bit 8 is reserved */
 507 #define IEEE80211_QOS_AMSDU                     0x80
 508 #define IEEE80211_QOS_AMSDU_S                   7
 509 #define IEEE80211_QOS_ACKPOLICY                 0x60
 510 #define IEEE80211_QOS_ACKPOLICY_S               5
 511 #define IEEE80211_QOS_ACKPOLICY_NOACK           0x20    /* No ACK required */
 512 #define IEEE80211_QOS_ACKPOLICY_BA              0x60    /* Block ACK */
 513 #define IEEE80211_QOS_ESOP                      0x10
 514 #define IEEE80211_QOS_ESOP_S                    4
 515 #define IEEE80211_QOS_TID                       0x0f
 516
 517 /* does frame have QoS sequence control data */
 518 #define IEEE80211_QOS_HAS_SEQ(wh) \
 519         (((wh)->i_fc[0] & \
 520         (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
 521         (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
 522
 523 #define WME_NUM_AC              4       /* 4 AC categories */
 524 #define WME_NUM_TID             16      /* 16 tids */
 525
 526 #define WME_PARAM_ACI           0x60    /* Mask for ACI field */
 527 #define WME_PARAM_ACI_S         5       /* Shift for ACI field */
 528 #define WME_PARAM_ACM           0x10    /* Mask for ACM bit */
 529 #define WME_PARAM_ACM_S         4       /* Shift for ACM bit */
 530 #define WME_PARAM_AIFSN         0x0f    /* Mask for aifsn field */
 531 #define WME_PARAM_AIFSN_S       0       /* Shift for aifsn field */
 532 #define WME_PARAM_LOGCWMIN      0x0f    /* Mask for CwMin field (in log) */
 533 #define WME_PARAM_LOGCWMIN_S    0       /* Shift for CwMin field */
 534 #define WME_PARAM_LOGCWMAX      0xf0    /* Mask for CwMax field (in log) */
 535 #define WME_PARAM_LOGCWMAX_S    4       /* Shift for CwMax field */
 536
 537 #define WME_AC_TO_TID(_ac) (       \
 538         ((_ac) == WME_AC_VO) ? 6 : \
 539         ((_ac) == WME_AC_VI) ? 5 : \
 540         ((_ac) == WME_AC_BK) ? 1 : \
 541         0)
 542
 543 #define TID_TO_WME_AC(_tid) (      \
 544         ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \
 545         ((_tid) < 3) ? WME_AC_BK : \
 546         ((_tid) < 6) ? WME_AC_VI : \
 547         WME_AC_VO)
 548
 549 #define IEEE80211_MNF_SETUP_REQ         0
 550 #define IEEE80211_MNF_SETUP_RESP        1
 551 #define IEEE80211_MNF_TEARDOWN          2
 552
 553 #define IEEE80211_ACTION_CAT_QOS        0       /* QoS */
 554 #define IEEE80211_ACTION_CAT_BA         3       /* BA */
 555 #define IEEE80211_ACTION_CAT_HT         7       /* HT */
 556
 557 #define IEEE80211_ACTION_HT_TXCHWIDTH   0       /* recommend xmit chan width */
 558 #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1       /* MIMO power save */
 559
 560 #define IEEE80211_A_HT_TXCHWIDTH_20     0
 561 #define IEEE80211_A_HT_TXCHWIDTH_2040   1
 562
 563 #define IEEE80211_A_HT_MIMOPWRSAVE_ENA          0x01    /* PS enabled */
 564 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE         0x02
 565 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S       1
 566 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC      0x02    /* Dynamic Mode */
 567 #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC       0x00    /* no SM packets */
 568 /* bits 2-7 reserved */
 569
 570 /* Block Ack actions */
 571 #define IEEE80211_ACTION_BA_ADDBA_REQUEST       0   /* ADDBA request */
 572 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE      1   /* ADDBA response */
 573 #define IEEE80211_ACTION_BA_DELBA               2   /* DELBA */
 574
 575 /* Block Ack Parameter Set */
 576 #define IEEE80211_BAPS_BUFSIZ   0xffc0          /* buffer size */
 577 #define IEEE80211_BAPS_BUFSIZ_S 6
 578 #define IEEE80211_BAPS_TID      0x003c          /* TID */
 579 #define IEEE80211_BAPS_TID_S    2
 580 #define IEEE80211_BAPS_POLICY   0x0002          /* block ack policy */
 581 #define IEEE80211_BAPS_POLICY_S 1
 582
 583 #define IEEE80211_BAPS_POLICY_DELAYED   (0<<IEEE80211_BAPS_POLICY_S)
 584 #define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S)
 585
 586 /* Block Ack Sequence Control */
 587 #define IEEE80211_BASEQ_START   0xfff0          /* starting seqnum */
 588 #define IEEE80211_BASEQ_START_S 4
 589 #define IEEE80211_BASEQ_FRAG    0x000f          /* fragment number */
 590 #define IEEE80211_BASEQ_FRAG_S  0
 591
 592 /* Delayed Block Ack Parameter Set */
 593 #define IEEE80211_DELBAPS_TID   0xf000          /* TID */
 594 #define IEEE80211_DELBAPS_TID_S 12
 595 #define IEEE80211_DELBAPS_INIT  0x0800          /* initiator */
 596 #define IEEE80211_DELBAPS_INIT_S 11
 597
 598 /* BAR Control */
 599 #define IEEE80211_BAR_TID       0xf000          /* TID */
 600 #define IEEE80211_BAR_TID_S     12
 601 #define IEEE80211_BAR_COMP      0x0004          /* compressed */
 602 #define IEEE80211_BAR_MTID      0x0002
 603 #define IEEE80211_BAR_NOACK     0x0001          /* no-ack policy */
 604
 605 /* HT capability flags (ht_cap) */
 606 #define IEEE80211_HTCAP_LDPC            0x0001  /* LDPC supported */
 607 #define IEEE80211_HTCAP_CHWIDTH40       0x0002  /* 20/40 supported */
 608 #define IEEE80211_HTCAP_SMPS            0x000c  /* SM Power Save mode */
 609 #define IEEE80211_HTCAP_SMPS_OFF        0x0000  /* none (static mode) */
 610 #define IEEE80211_HTCAP_SMPS_DYNAMIC    0x0004  /* send RTS first */
 611 /* NB: SMPS value 2 is reserved */
 612 #define IEEE80211_HTCAP_SMPS_ENA        0x000c  /* enabled */
 613 #define IEEE80211_HTCAP_GREENFIELD      0x0010  /* Greenfield supported */
 614 #define IEEE80211_HTCAP_SHORTGI20       0x0020  /* Short GI in 20MHz */
 615 #define IEEE80211_HTCAP_SHORTGI40       0x0040  /* Short GI in 40MHz */
 616 #define IEEE80211_HTCAP_TXSTBC          0x0080  /* STBC tx ok */
 617 #define IEEE80211_HTCAP_RXSTBC          0x0300  /* STBC rx support */
 618 #define IEEE80211_HTCAP_RXSTBC_S        8
 619 #define IEEE80211_HTCAP_RXSTBC_1STREAM  0x0100  /* 1 spatial stream */
 620 #define IEEE80211_HTCAP_RXSTBC_2STREAM  0x0200  /* 1-2 spatial streams */
 621 #define IEEE80211_HTCAP_RXSTBC_3STREAM  0x0300  /* 1-3 spatial streams */
 622 #define IEEE80211_HTCAP_DELBA           0x0400  /* HT DELBA supported */
 623 #define IEEE80211_HTCAP_MAXAMSDU        0x0800  /* max A-MSDU length */
 624 #define IEEE80211_HTCAP_MAXAMSDU_7935   0x0800  /* 7935 octets */
 625 #define IEEE80211_HTCAP_MAXAMSDU_3839   0x0000  /* 3839 octets */
 626 #define IEEE80211_HTCAP_DSSSCCK40       0x1000  /* DSSS/CCK in 40MHz */
 627 #define IEEE80211_HTCAP_PSMP            0x2000  /* PSMP supported */
 628 #define IEEE80211_HTCAP_40INTOLERANT    0x4000  /* 40MHz intolerant */
 629 #define IEEE80211_HTCAP_LSIGTXOPPROT    0x8000  /* L-SIG TXOP prot */
 630
 631 /* HT parameters (hc_param) */
 632 #define IEEE80211_HTCAP_MAXRXAMPDU      0x03    /* max rx A-MPDU factor */
 633 #define IEEE80211_HTCAP_MAXRXAMPDU_S    0
 634 #define IEEE80211_HTCAP_MAXRXAMPDU_8K   0
 635 #define IEEE80211_HTCAP_MAXRXAMPDU_16K  1
 636 #define IEEE80211_HTCAP_MAXRXAMPDU_32K  2
 637 #define IEEE80211_HTCAP_MAXRXAMPDU_64K  3
 638 #define IEEE80211_HTCAP_MPDUDENSITY     0x1c    /* min MPDU start spacing */
 639 #define IEEE80211_HTCAP_MPDUDENSITY_S   2
 640 #define IEEE80211_HTCAP_MPDUDENSITY_NA  0       /* no time restriction */
 641 #define IEEE80211_HTCAP_MPDUDENSITY_025 1       /* 1/4 us */
 642 #define IEEE80211_HTCAP_MPDUDENSITY_05  2       /* 1/2 us */
 643 #define IEEE80211_HTCAP_MPDUDENSITY_1   3       /* 1 us */
 644 #define IEEE80211_HTCAP_MPDUDENSITY_2   4       /* 2 us */
 645 #define IEEE80211_HTCAP_MPDUDENSITY_4   5       /* 4 us */
 646 #define IEEE80211_HTCAP_MPDUDENSITY_8   6       /* 8 us */
 647 #define IEEE80211_HTCAP_MPDUDENSITY_16  7       /* 16 us */
 648
 649 /* HT extended capabilities (hc_extcap) */
 650 #define IEEE80211_HTCAP_PCO             0x0001  /* PCO capable */
 651 #define IEEE80211_HTCAP_PCOTRANS        0x0006  /* PCO transition time */
 652 #define IEEE80211_HTCAP_PCOTRANS_S      1
 653 #define IEEE80211_HTCAP_PCOTRANS_04     0x0002  /* 400 us */
 654 #define IEEE80211_HTCAP_PCOTRANS_15     0x0004  /* 1.5 ms */
 655 #define IEEE80211_HTCAP_PCOTRANS_5      0x0006  /* 5 ms */
 656 /* bits 3-7 reserved */
 657 #define IEEE80211_HTCAP_MCSFBACK        0x0300  /* MCS feedback */
 658 #define IEEE80211_HTCAP_MCSFBACK_S      8
 659 #define IEEE80211_HTCAP_MCSFBACK_NONE   0x0000  /* nothing provided */
 660 #define IEEE80211_HTCAP_MCSFBACK_UNSOL  0x0200  /* unsolicited feedback */
 661 #define IEEE80211_HTCAP_MCSFBACK_MRQ    0x0300  /* " "+respond to MRQ */
 662 #define IEEE80211_HTCAP_HTC             0x0400  /* +HTC support */
 663 #define IEEE80211_HTCAP_RDR             0x0800
 664                                         /* reverse direction responder */
 665 /* bits 12-15 reserved */
 666
 667 /* byte1 */
 668 #define IEEE80211_HTINFO_2NDCHAN        0x03    /* secondary/ext chan offset */
 669 #define IEEE80211_HTINFO_2NDCHAN_S      0
 670 #define IEEE80211_HTINFO_2NDCHAN_NONE   0x00    /* no secondary/ext channel */
 671 #define IEEE80211_HTINFO_2NDCHAN_ABOVE  0x01    /* above private channel */
 672 /* NB: 2 is reserved */
 673 #define IEEE80211_HTINFO_2NDCHAN_BELOW  0x03    /* below primary channel */
 674 #define IEEE80211_HTINFO_TXWIDTH        0x04    /* tx channel width */
 675 #define IEEE80211_HTINFO_TXWIDTH_20     0x00    /* 20MHz width */
 676 #define IEEE80211_HTINFO_TXWIDTH_2040   0x04    /* any supported width */
 677 #define IEEE80211_HTINFO_RIFSMODE       0x08    /* Reduced IFS (RIFS) use */
 678 #define IEEE80211_HTINFO_RIFSMODE_PROH  0x00    /* RIFS use prohibited */
 679 #define IEEE80211_HTINFO_RIFSMODE_PERM  0x08    /* RIFS use permitted */
 680 #define IEEE80211_HTINFO_PMSPONLY       0x10    /* PSMP required to associate */
 681 #define IEEE80211_HTINFO_SIGRAN         0xe0    /* shortest Service Interval */
 682 #define IEEE80211_HTINFO_SIGRAN_S       5
 683 #define IEEE80211_HTINFO_SIGRAN_5       0x00    /* 5 ms */
 684 /* XXX add rest */
 685
 686 /* bytes 2+3 */
 687 #define IEEE80211_HTINFO_OPMODE         0x03    /* operating mode */
 688 #define IEEE80211_HTINFO_OPMODE_S       0
 689 #define IEEE80211_HTINFO_OPMODE_PURE    0x00    /* no protection */
 690 #define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01    /* protection optional */
 691 #define IEEE80211_HTINFO_OPMODE_HT20PR  0x02    /* protection for HT20 sta's */
 692 #define IEEE80211_HTINFO_OPMODE_MIXED   0x03    /* protection for legacy sta */
 693 #define IEEE80211_HTINFO_NONGF_PRESENT  0x04    /* non-GF sta's present */
 694 #define IEEE80211_HTINFO_TXBL           0x08    /* transmit burst limit */
 695 #define IEEE80211_HTINFO_NONHT_PRESENT  0x10    /* non-HT sta's present */
 696 /* bits 5-15 reserved */
 697
 698 /* bytes 4+5 */
 699 #define IEEE80211_HTINFO_2NDARYBEACON   0x01
 700 #define IEEE80211_HTINFO_LSIGTXOPPROT   0x02
 701 #define IEEE80211_HTINFO_PCO_ACTIVE     0x04
 702 #define IEEE80211_HTINFO_40MHZPHASE     0x08
 703
 704 /* byte5 */
 705 #define IEEE80211_HTINFO_BASIC_STBCMCS  0x7f
 706 #define IEEE80211_HTINFO_BASIC_STBCMCS_S 0
 707 #define IEEE80211_HTINFO_DUALPROTECTED  0x80
 708
 709 /*
 710  * Length of management frame information elements containing
 711  * a variable-length component is:
 712  *    element_id(1 byte) + length(1 byte) + component(variable bytes)
 713  */
 714 #define IEEE80211_ELEM_LEN(complen)             (2 + (complen))
 715
 716 /*
 717  * minimal length of beacon/probe response frame elements
 718  *  time stamp[8] + beacon interval[2] + capability[2]
 719  */
 720 #define IEEE80211_BEACON_ELEM_MIN               12
 721 /*
 722  * Minimal length of authentication frame elements
 723  *    algorithm[2] + sequence[2] + status[2]
 724  */
 725 #define IEEE80211_AUTH_ELEM_MIN                 6
 726 /*
 727  * Minimal length of association response frame elements
 728  *    capability[2] + status[2] + association ID[2]
 729  */
 730 #define IEEE80211_ASSOC_RESP_ELEM_MIN           6
 731
 732 #define IEEE80211_CAPINFO_ESS                   0x0001
 733 #define IEEE80211_CAPINFO_IBSS                  0x0002
 734 #define IEEE80211_CAPINFO_CF_POLLABLE           0x0004
 735 #define IEEE80211_CAPINFO_CF_POLLREQ            0x0008
 736 #define IEEE80211_CAPINFO_PRIVACY               0x0010
 737 #define IEEE80211_CAPINFO_SHORT_PREAMBLE        0x0020
 738 #define IEEE80211_CAPINFO_PBCC                  0x0040
 739 #define IEEE80211_CAPINFO_CHNL_AGILITY          0x0080
 740 #define IEEE80211_CAPINFO_SPECTRUM_MGMT         0x0100
 741 /* bits 8-9 are reserved */
 742 #define IEEE80211_CAPINFO_SHORT_SLOTTIME        0x0400
 743 #define IEEE80211_CAPINFO_RSN                   0x0800
 744 /* bit 12 is reserved */
 745 #define IEEE80211_CAPINFO_DSSSOFDM              0x2000
 746 /* bits 14-15 are reserved */
 747
 748 /*
 749  * Management information element payloads.
 750  */
 751
 752 enum {
 753         IEEE80211_ELEMID_SSID                   = 0,
 754         IEEE80211_ELEMID_RATES                  = 1,
 755         IEEE80211_ELEMID_FHPARMS                = 2,
 756         IEEE80211_ELEMID_DSPARMS                = 3,
 757         IEEE80211_ELEMID_CFPARMS                = 4,
 758         IEEE80211_ELEMID_TIM                    = 5,
 759         IEEE80211_ELEMID_IBSSPARMS              = 6,
 760         IEEE80211_ELEMID_COUNTRY                = 7,
 761         IEEE80211_ELEMID_CHALLENGE              = 16,
 762         /* 17-31 reserved for challenge text extension */
 763         IEEE80211_ELEMID_PWRCNSTR               = 32,
 764         IEEE80211_ELEMID_PWRCAP                 = 33,
 765         IEEE80211_ELEMID_TPCREQ                 = 34,
 766         IEEE80211_ELEMID_TPCREP                 = 35,
 767         IEEE80211_ELEMID_SUPPCHAN               = 36,
 768         IEEE80211_ELEMID_CHANSWITCHANN          = 37,
 769         IEEE80211_ELEMID_MEASREQ                = 38,
 770         IEEE80211_ELEMID_MEASREP                = 39,
 771         IEEE80211_ELEMID_QUIET                  = 40,
 772         IEEE80211_ELEMID_IBSSDFS                = 41,
 773         IEEE80211_ELEMID_ERP                    = 42,
 774         IEEE80211_ELEMID_HTCAP                  = 45,
 775         IEEE80211_ELEMID_RSN                    = 48,
 776         IEEE80211_ELEMID_XRATES                 = 50,
 777         IEEE80211_ELEMID_HTINFO                 = 61,
 778         /* 128-129 proprietary elements used by Agere chipsets */
 779         IEEE80211_ELEMID_AGERE1                 = 128,
 780         IEEE80211_ELEMID_AGERE2                 = 129,
 781         IEEE80211_ELEMID_TPC                    = 150,
 782         IEEE80211_ELEMID_CCKM                   = 156,
 783         IEEE80211_ELEMID_VENDOR                 = 221   /* vendor private */
 784 };
 785
 786 #define BCM_OUI                 0x4c9000        /* Broadcom OUI */
 787 #define BCM_OUI_HTCAP           51              /* pre-draft HTCAP ie */
 788 #define BCM_OUI_HTINFO          52              /* pre-draft HTINFO ie */
 789
 790 #define WPA_OUI                 0xf25000
 791 #define WPA_OUI_TYPE            0x01
 792 #define WPA_VERSION             1               /* current supported version */
 793
 794 #define IEEE80211_CHALLENGE_LEN                 128
 795
 796 #define IEEE80211_RATE_BASIC                    0x80
 797 #define IEEE80211_RATE_VAL                      0x7f
 798
 799 /* EPR information element flags */
 800 #define IEEE80211_ERP_NON_ERP_PRESENT           0x01
 801 #define IEEE80211_ERP_USE_PROTECTION            0x02
 802 #define IEEE80211_ERP_LONG_PREAMBLE             0x04
 803
 804 #define IEEE80211_AUTH_ALG_OPEN                 0x0000
 805 #define IEEE80211_AUTH_ALG_SHARED               0x0001
 806 #define IEEE80211_AUTH_ALG_LEAP                 0x0080
 807
 808
 809 enum {
 810         IEEE80211_AUTH_OPEN_REQUEST             = 1,
 811         IEEE80211_AUTH_OPEN_RESPONSE            = 2
 812 };
 813
 814 enum {
 815         IEEE80211_AUTH_SHARED_REQUEST           = 1,
 816         IEEE80211_AUTH_SHARED_CHALLENGE         = 2,
 817         IEEE80211_AUTH_SHARED_RESPONSE          = 3,
 818         IEEE80211_AUTH_SHARED_PASS              = 4
 819 };
 820
 821 /*
 822  * Reason codes
 823  *
 824  * Unlisted codes are reserved
 825  */
 826 enum {
 827         IEEE80211_REASON_UNSPECIFIED            = 1,
 828         IEEE80211_REASON_AUTH_EXPIRE            = 2,
 829         IEEE80211_REASON_AUTH_LEAVE             = 3,
 830         IEEE80211_REASON_ASSOC_EXPIRE           = 4,
 831         IEEE80211_REASON_ASSOC_TOOMANY          = 5,
 832         IEEE80211_REASON_NOT_AUTHED             = 6,
 833         IEEE80211_REASON_NOT_ASSOCED            = 7,
 834         IEEE80211_REASON_ASSOC_LEAVE            = 8,
 835         IEEE80211_REASON_ASSOC_NOT_AUTHED       = 9,
 836         IEEE80211_REASON_DISASSOC_PWRCAP_BAD    = 10,   /* 11h */
 837         IEEE80211_REASON_DISASSOC_SUPCHAN_BAD   = 11,   /* 11h */
 838         IEEE80211_REASON_IE_INVALID             = 13,   /* 11i */
 839         IEEE80211_REASON_MIC_FAILURE            = 14,   /* 11i */
 840         IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,   /* 11i */
 841         IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */
 842         IEEE80211_REASON_IE_IN_4WAY_DIFFERS     = 17,   /* 11i */
 843         IEEE80211_REASON_GROUP_CIPHER_INVALID   = 18,   /* 11i */
 844         IEEE80211_REASON_PAIRWISE_CIPHER_INVALID = 19,  /* 11i */
 845         IEEE80211_REASON_AKMP_INVALID           = 20,   /* 11i */
 846         IEEE80211_REASON_UNSUPP_RSN_IE_VERSION  = 21,   /* 11i */
 847         IEEE80211_REASON_INVALID_RSN_IE_CAP     = 22,   /* 11i */
 848         IEEE80211_REASON_802_1X_AUTH_FAILED     = 23,   /* 11i */
 849         IEEE80211_REASON_CIPHER_SUITE_REJECTED  = 24    /* 11i */
 850 };
 851
 852 /*
 853  * Status codes
 854  *
 855  * Unlisted codes are reserved and unused
 856  */
 857 enum {
 858         IEEE80211_STATUS_SUCCESS                = 0,
 859         IEEE80211_STATUS_UNSPECIFIED            = 1,
 860         IEEE80211_STATUS_CAPINFO                = 10,
 861         IEEE80211_STATUS_NOT_ASSOCED            = 11,
 862         IEEE80211_STATUS_OTHER                  = 12,
 863         IEEE80211_STATUS_ALG                    = 13,
 864         IEEE80211_STATUS_SEQUENCE               = 14,
 865         IEEE80211_STATUS_CHALLENGE              = 15,
 866         IEEE80211_STATUS_TIMEOUT                = 16,
 867         IEEE80211_STATUS_TOOMANY                = 17,
 868         IEEE80211_STATUS_BASIC_RATE             = 18,
 869         IEEE80211_STATUS_SP_REQUIRED            = 19,   /* 11b */
 870         IEEE80211_STATUS_PBCC_REQUIRED          = 20,   /* 11b */
 871         IEEE80211_STATUS_CA_REQUIRED            = 21,   /* 11b */
 872         IEEE80211_STATUS_SPECMGMT_REQUIRED      = 22,   /* 11h */
 873         IEEE80211_STATUS_PWRCAP_REQUIRED        = 23,   /* 11h */
 874         IEEE80211_STATUS_SUPCHAN_REQUIRED       = 24,   /* 11h */
 875         IEEE80211_STATUS_SHORTSLOT_REQUIRED     = 25,   /* 11g */
 876         IEEE80211_STATUS_DSSSOFDM_REQUIRED      = 26,   /* 11g */
 877         IEEE80211_STATUS_INVALID_IE             = 40,   /* 11i */
 878         IEEE80211_STATUS_GROUP_CIPHER_INVALID   = 41,   /* 11i */
 879         IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42,  /* 11i */
 880         IEEE80211_STATUS_AKMP_INVALID           = 43,   /* 11i */
 881         IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION  = 44,   /* 11i */
 882         IEEE80211_STATUS_INVALID_RSN_IE_CAP     = 45,   /* 11i */
 883         IEEE80211_STATUS_CIPHER_SUITE_REJECTED  = 46    /* 11i */
 884 };
 885
 886 #define IEEE80211_WEP_KEYLEN            5       /* 40bit */
 887 #define IEEE80211_WEP_IVLEN             3       /* 24bit */
 888 #define IEEE80211_WEP_KIDLEN            1       /* 1 octet */
 889 #define IEEE80211_WEP_CRCLEN            4       /* CRC-32 */
 890 #define IEEE80211_WEP_NKID              4       /* number of key ids */
 891
 892 /*
 893  * 802.11i defines an extended IV for use with non-WEP ciphers.
 894  * When the EXTIV bit is set in the key id byte an additional
 895  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 896  * EXTIV bit is likewise set but the 8 bytes represent the
 897  * CCMP header rather than IV+extended-IV.
 898  */
 899 #define IEEE80211_WEP_EXTIV             0x20
 900 #define IEEE80211_WEP_EXTIVLEN          4       /* extended IV length */
 901 #define IEEE80211_WEP_MICLEN            8       /* trailing MIC */
 902
 903 #define IEEE80211_CRC_LEN               4
 904
 905 /*
 906  * Maximum acceptable MTU is defined by 802.11
 907  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.
 908  */
 909 #define IEEE80211_MTU_MAX               2304
 910 #define IEEE80211_MTU_MIN               32
 911 #define IEEE80211_MTU                   1500
 912
 913 #define IEEE80211_MAX_LEN                               \
 914         (sizeof (struct ieee80211_frame_addr4) +        \
 915         (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN) + \
 916         IEEE80211_MTU_MAX + IEEE80211_CRC_LEN)
 917 #define IEEE80211_ACK_LEN                               \
 918         (sizeof (struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
 919 #define IEEE80211_MIN_LEN                               \
 920         (sizeof (struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
 921
 922 /*
 923  * The 802.11 spec says at most 2007 stations may be
 924  * associated at once.  For most AP's this is way more
 925  * than is feasible so we use a default of 128.  This
 926  * number may be overridden by the driver and/or by
 927  * user configuration.
 928  */
 929 #define IEEE80211_AID_MAX               2007
 930 #define IEEE80211_AID_DEF               128
 931
 932 #define IEEE80211_AID(b)                ((b) &~ 0xc000)
 933
 934 /*
 935  * RTS frame length parameters.  The default is specified in
 936  * the 802.11 spec as 512; we treat it as implementation-dependent
 937  * so it's defined in ieee80211_var.h.  The max may be wrong
 938  * for jumbo frames.
 939  */
 940 #define IEEE80211_RTS_MIN               1
 941 #define IEEE80211_RTS_MAX               2346
 942
 943 /*
 944  * TX fragmentation parameters.  As above for RTS, we treat
 945  * default as implementation-dependent so define it elsewhere.
 946  */
 947 #define IEEE80211_FRAG_MIN              256
 948 #define IEEE80211_FRAG_MAX              2346
 949
 950 /* flags for ieee80211_fix_rate() */
 951 #define IEEE80211_F_DOSORT              0x00000001 /* sort rate list */
 952 #define IEEE80211_F_DOFRATE             0x00000002 /* use fixed rate */
 953 #define IEEE80211_F_DONEGO              0x00000004 /* calc negotiated rate */
 954 #define IEEE80211_F_DODEL               0x00000008 /* delete ignore rate */
 955 #define IEEE80211_F_DOBRS               0x00000010 /* check basic rate set */
 956 #define IEEE80211_F_JOIN                0x00000020 /* sta joining our bss */
 957
 958 /*
 959  * Beacon frames constructed by ieee80211_beacon_alloc
 960  * have the following structure filled in so drivers
 961  * can update the frame later w/ minimal overhead.
 962  */
 963 struct ieee80211_beacon_offsets {
 964         uint16_t        *bo_caps;       /* capabilities */
 965         uint8_t         *bo_tim;        /* start of atim/dtim */
 966         uint8_t         *bo_wme;        /* start of WME parameters */
 967         uint8_t         *bo_trailer;    /* start of fixed-size trailer */
 968         uint16_t        bo_tim_len;     /* atim/dtim length in bytes */
 969         uint16_t        bo_trailer_len; /* trailer length in bytes */
 970         uint8_t         *bo_erp;        /* start of ERP element */
 971         uint8_t         *bo_htinfo;     /* start of HT info element */
 972 };
 973
 974 #ifdef  __cplusplus
 975 }
 976 #endif
 977
 978 #endif  /* _SYS_NET80211_PROTO_H */