package/openwrt/include/proto/802.11.h

   1 /*
   2  * Copyright 2004, Broadcom Corporation
   3  * All Rights Reserved.
   4  *
   5  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   6  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   7  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
   8  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
   9  *
  10  * Fundamental types and constants relating to 802.11
  11  *
  12  * $Id$
  13  */
  14
  15 #ifndef _802_11_H_
  16 #define _802_11_H_
  17
  18 #ifndef _TYPEDEFS_H_
  19 #include <typedefs.h>
  20 #endif
  21
  22 #ifndef _NET_ETHERNET_H_
  23 #include <proto/ethernet.h>
  24 #endif
  25
  26 /* enable structure packing */
  27 #if !defined(__GNUC__)
  28 #pragma pack(1)
  29 #endif
  30
  31 /* some platforms require stronger medicine */
  32 #if defined(__GNUC__)
  33 #define PACKED  __attribute__((packed))
  34 #else
  35 #define PACKED
  36 #endif
  37
  38
  39 #define DOT11_TU_TO_US                  1024    /* 802.11 Time Unit is 1024 microseconds */
  40
  41 /* Generic 802.11 frame constants */
  42 #define DOT11_A3_HDR_LEN                24
  43 #define DOT11_A4_HDR_LEN                30
  44 #define DOT11_MAC_HDR_LEN               DOT11_A3_HDR_LEN
  45 #define DOT11_FCS_LEN                   4
  46 #define DOT11_ICV_LEN                   4
  47 #define DOT11_ICV_AES_LEN               8
  48 #define DOT11_QOS_LEN                   2
  49
  50 #define DOT11_KEY_INDEX_SHIFT           6
  51 #define DOT11_IV_LEN                    4
  52 #define DOT11_IV_TKIP_LEN               8
  53 #define DOT11_IV_AES_OCB_LEN            4
  54 #define DOT11_IV_AES_CCM_LEN            8
  55
  56 /* Includes MIC */
  57 #define DOT11_MAX_MPDU_BODY_LEN         2304
  58 /* A4 header + QoS + CCMP + PDU + ICV + FCS = 2352 */
  59 #define DOT11_MAX_MPDU_LEN              (DOT11_A4_HDR_LEN + \
  60                                          DOT11_QOS_LEN + \
  61                                          DOT11_IV_AES_CCM_LEN + \
  62                                          DOT11_MAX_MPDU_BODY_LEN + \
  63                                          DOT11_ICV_LEN + \
  64                                          DOT11_FCS_LEN)
  65
  66 #define DOT11_MAX_SSID_LEN              32
  67
  68 /* dot11RTSThreshold */
  69 #define DOT11_DEFAULT_RTS_LEN           2347
  70 #define DOT11_MAX_RTS_LEN               2347
  71
  72 /* dot11FragmentationThreshold */
  73 #define DOT11_MIN_FRAG_LEN              256
  74 #define DOT11_MAX_FRAG_LEN              2346    /* Max frag is also limited by aMPDUMaxLength of the attached PHY */
  75 #define DOT11_DEFAULT_FRAG_LEN          2346
  76
  77 /* dot11BeaconPeriod */
  78 #define DOT11_MIN_BEACON_PERIOD         1
  79 #define DOT11_MAX_BEACON_PERIOD         0xFFFF
  80
  81 /* dot11DTIMPeriod */
  82 #define DOT11_MIN_DTIM_PERIOD           1
  83 #define DOT11_MAX_DTIM_PERIOD           0xFF
  84
  85 /* 802.2 LLC/SNAP header used by 802.11 per 802.1H */
  86 #define DOT11_LLC_SNAP_HDR_LEN  8
  87 #define DOT11_OUI_LEN                   3
  88 struct dot11_llc_snap_header {
  89         uint8   dsap;                           /* always 0xAA */
  90         uint8   ssap;                           /* always 0xAA */
  91         uint8   ctl;                            /* always 0x03 */
  92         uint8   oui[DOT11_OUI_LEN];             /* RFC1042: 0x00 0x00 0x00
  93                                                    Bridge-Tunnel: 0x00 0x00 0xF8 */
  94         uint16  type;                           /* ethertype */
  95 } PACKED;
  96
  97 /* RFC1042 header used by 802.11 per 802.1H */
  98 #define RFC1042_HDR_LEN                 (ETHER_HDR_LEN + DOT11_LLC_SNAP_HDR_LEN)
  99
 100 /* Generic 802.11 MAC header */
 101 /*
 102  * N.B.: This struct reflects the full 4 address 802.11 MAC header.
 103  *               The fields are defined such that the shorter 1, 2, and 3
 104  *               address headers just use the first k fields.
 105  */
 106 struct dot11_header {
 107         uint16                  fc;             /* frame control */
 108         uint16                  durid;          /* duration/ID */
 109         struct ether_addr       a1;             /* address 1 */
 110         struct ether_addr       a2;             /* address 2 */
 111         struct ether_addr       a3;             /* address 3 */
 112         uint16                  seq;            /* sequence control */
 113         struct ether_addr       a4;             /* address 4 */
 114 } PACKED;
 115
 116 /* Control frames */
 117
 118 struct dot11_rts_frame {
 119         uint16                  fc;             /* frame control */
 120         uint16                  durid;          /* duration/ID */
 121         struct ether_addr       ra;             /* receiver address */
 122         struct ether_addr       ta;             /* transmitter address */
 123 } PACKED;
 124 #define DOT11_RTS_LEN           16
 125
 126 struct dot11_cts_frame {
 127         uint16                  fc;             /* frame control */
 128         uint16                  durid;          /* duration/ID */
 129         struct ether_addr       ra;             /* receiver address */
 130 } PACKED;
 131 #define DOT11_CTS_LEN           10
 132
 133 struct dot11_ack_frame {
 134         uint16                  fc;             /* frame control */
 135         uint16                  durid;          /* duration/ID */
 136         struct ether_addr       ra;             /* receiver address */
 137 } PACKED;
 138 #define DOT11_ACK_LEN           10
 139
 140 struct dot11_ps_poll_frame {
 141         uint16                  fc;             /* frame control */
 142         uint16                  durid;          /* AID */
 143         struct ether_addr       bssid;          /* receiver address, STA in AP */
 144         struct ether_addr       ta;             /* transmitter address */
 145 } PACKED;
 146 #define DOT11_PS_POLL_LEN       16
 147
 148 struct dot11_cf_end_frame {
 149         uint16                  fc;             /* frame control */
 150         uint16                  durid;          /* duration/ID */
 151         struct ether_addr       ra;             /* receiver address */
 152         struct ether_addr       bssid;          /* transmitter address, STA in AP */
 153 } PACKED;
 154 #define DOT11_CS_END_LEN        16
 155
 156 /* Management frame header */
 157 struct dot11_management_header {
 158         uint16                  fc;             /* frame control */
 159         uint16                  durid;          /* duration/ID */
 160         struct ether_addr       da;             /* receiver address */
 161         struct ether_addr       sa;             /* transmitter address */
 162         struct ether_addr       bssid;          /* BSS ID */
 163         uint16                  seq;            /* sequence control */
 164 } PACKED;
 165 #define DOT11_MGMT_HDR_LEN      24
 166
 167 /* Management frame payloads */
 168
 169 struct dot11_bcn_prb {
 170         uint32                  timestamp[2];
 171         uint16                  beacon_interval;
 172         uint16                  capability;
 173 } PACKED;
 174 #define DOT11_BCN_PRB_LEN       12
 175
 176 struct dot11_auth {
 177         uint16                  alg;            /* algorithm */
 178         uint16                  seq;            /* sequence control */
 179         uint16                  status;         /* status code */
 180 } PACKED;
 181 #define DOT11_AUTH_FIXED_LEN    6               /* length of auth frame without challenge info elt */
 182
 183 struct dot11_assoc_req {
 184         uint16                  capability;     /* capability information */
 185         uint16                  listen;         /* listen interval */
 186 } PACKED;
 187
 188 struct dot11_assoc_resp {
 189         uint16                  capability;     /* capability information */
 190         uint16                  status;         /* status code */
 191         uint16                  aid;            /* association ID */
 192 } PACKED;
 193
 194 struct dot11_action_measure {
 195         uint8   category;
 196         uint8   action;
 197         uint8   token;
 198         uint8   data[1];
 199 } PACKED;
 200 #define DOT11_ACTION_MEASURE_LEN        3
 201
 202 /**************
 203   802.11h related definitions.
 204 **************/
 205 typedef struct {
 206         uint8 id;
 207         uint8 len;
 208         uint8 power;
 209 } dot11_power_cnst_t;
 210
 211 typedef struct {
 212         uint8 min;
 213         uint8 max;
 214 } dot11_power_cap_t;
 215
 216 typedef struct {
 217         uint8 id;
 218         uint8 len;
 219         uint8 tx_pwr;
 220         uint8 margin;
 221 } dot11_tpc_rep_t;
 222 #define DOT11_MNG_IE_TPC_REPORT_LEN     2       /* length of IE data, not including 2 byte header */
 223
 224 typedef struct {
 225         uint8 id;
 226         uint8 len;
 227         uint8 first_channel;
 228         uint8 num_channels;
 229 } dot11_supp_channels_t;
 230
 231 struct dot11_channel_switch {
 232         uint8 id;
 233         uint8 len;
 234         uint8 mode;
 235         uint8 channel;
 236         uint8 count;
 237 }  PACKED;
 238 typedef struct dot11_channel_switch dot11_channel_switch_t;
 239
 240 /* 802.11h Measurement Request/Report IEs */
 241 /* Measurement Type field */
 242 #define DOT11_MEASURE_TYPE_BASIC        0
 243 #define DOT11_MEASURE_TYPE_CCA          1
 244 #define DOT11_MEASURE_TYPE_RPI          2
 245
 246 /* Measurement Mode field */
 247
 248 /* Measurement Request Modes */
 249 #define DOT11_MEASURE_MODE_ENABLE       (1<<1)
 250 #define DOT11_MEASURE_MODE_REQUEST      (1<<2)
 251 #define DOT11_MEASURE_MODE_REPORT       (1<<3)
 252 /* Measurement Report Modes */
 253 #define DOT11_MEASURE_MODE_LATE         (1<<0)
 254 #define DOT11_MEASURE_MODE_INCAPABLE    (1<<1)
 255 #define DOT11_MEASURE_MODE_REFUSED      (1<<2)
 256 /* Basic Measurement Map bits */
 257 #define DOT11_MEASURE_BASIC_MAP_BSS     ((uint8)(1<<0))
 258 #define DOT11_MEASURE_BASIC_MAP_OFDM    ((uint8)(1<<1))
 259 #define DOT11_MEASURE_BASIC_MAP_UKNOWN  ((uint8)(1<<2))
 260 #define DOT11_MEASURE_BASIC_MAP_RADAR   ((uint8)(1<<3))
 261 #define DOT11_MEASURE_BASIC_MAP_UNMEAS  ((uint8)(1<<4))
 262
 263 typedef struct {
 264         uint8 id;
 265         uint8 len;
 266         uint8 token;
 267         uint8 mode;
 268         uint8 type;
 269         uint8 channel;
 270         uint8 start_time[8];
 271         uint16 duration;
 272 } dot11_meas_req_t;
 273 #define DOT11_MNG_IE_MREQ_LEN 14
 274 /* length of Measure Request IE data not including variable len */
 275 #define DOT11_MNG_IE_MREQ_FIXED_LEN 3
 276
 277 struct dot11_meas_rep {
 278         uint8 id;
 279         uint8 len;
 280         uint8 token;
 281         uint8 mode;
 282         uint8 type;
 283         union
 284         {
 285                 struct {
 286                         uint8 channel;
 287                         uint8 start_time[8];
 288                         uint16 duration;
 289                         uint8 map;
 290                 } PACKED basic;
 291                 uint8 data[1];
 292         } PACKED rep;
 293 } PACKED;
 294 typedef struct dot11_meas_rep dot11_meas_rep_t;
 295
 296 /* length of Measure Report IE data not including variable len */
 297 #define DOT11_MNG_IE_MREP_FIXED_LEN     3
 298
 299 struct dot11_meas_rep_basic {
 300         uint8 channel;
 301         uint8 start_time[8];
 302         uint16 duration;
 303         uint8 map;
 304 } PACKED;
 305 typedef struct dot11_meas_rep_basic dot11_meas_rep_basic_t;
 306 #define DOT11_MEASURE_BASIC_REP_LEN     12
 307
 308 struct dot11_quiet {
 309         uint8 id;
 310         uint8 len;
 311         uint8 count;    /* TBTTs until beacon interval in quiet starts */
 312         uint8 period;   /* Beacon intervals between periodic quiet periods ? */
 313         uint16 duration;/* Length of quiet period, in TU's */
 314         uint16 offset;  /* TU's offset from TBTT in Count field */
 315 } PACKED;
 316 typedef struct dot11_quiet dot11_quiet_t;
 317
 318 typedef struct {
 319         uint8 channel;
 320         uint8 map;
 321 } chan_map_tuple_t;
 322
 323 typedef struct {
 324         uint8 id;
 325         uint8 len;
 326         uint8 eaddr[ETHER_ADDR_LEN];
 327         uint8 interval;
 328         chan_map_tuple_t map[1];
 329 } dot11_ibss_dfs_t;
 330
 331 /* WME Elements */
 332 #define WME_OUI                 "\x00\x50\xf2"
 333 #define WME_VER                 1
 334 #define WME_TYPE                2
 335 #define WME_SUBTYPE_IE          0       /* Information Element */
 336 #define WME_SUBTYPE_PARAM_IE    1       /* Parameter Element */
 337 #define WME_SUBTYPE_TSPEC       2       /* Traffic Specification */
 338
 339 /* WME Access Category Indices (ACIs) */
 340 #define AC_BE                   0       /* Best Effort */
 341 #define AC_BK                   1       /* Background */
 342 #define AC_VI                   2       /* Video */
 343 #define AC_VO                   3       /* Voice */
 344 #define AC_MAX                  4
 345
 346 /* WME Information Element (IE) */
 347 struct wme_ie {
 348         uint8 oui[3];
 349         uint8 type;
 350         uint8 subtype;
 351         uint8 version;
 352         uint8 acinfo;
 353 } PACKED;
 354 typedef struct wme_ie wme_ie_t;
 355 #define WME_IE_LEN 7
 356
 357 struct wme_acparam {
 358         uint8   ACI;
 359         uint8   ECW;
 360         uint16  TXOP;           /* stored in network order (ls octet first) */
 361 } PACKED;
 362 typedef struct wme_acparam wme_acparam_t;
 363
 364 /* WME Parameter Element (PE) */
 365 struct wme_params {
 366         uint8 oui[3];
 367         uint8 type;
 368         uint8 subtype;
 369         uint8 version;
 370         uint8 acinfo;
 371         uint8 rsvd;
 372         wme_acparam_t acparam[4];
 373 } PACKED;
 374 typedef struct wme_params wme_params_t;
 375 #define WME_PARAMS_IE_LEN       24
 376
 377 /* acinfo */
 378 #define WME_COUNT_MASK  0x0f
 379 /* ACI */
 380 #define WME_AIFS_MASK   0x0f
 381 #define WME_ACM_MASK    0x10
 382 #define WME_ACI_MASK    0x60
 383 #define WME_ACI_SHIFT   5
 384 /* ECW */
 385 #define WME_CWMIN_MASK  0x0f
 386 #define WME_CWMAX_MASK  0xf0
 387 #define WME_CWMAX_SHIFT 4
 388
 389 #define WME_TXOP_UNITS  32
 390
 391 /* WME Traffic Specification (TSPEC) element */
 392 #define WME_SUBTYPE_TSPEC 2
 393 #define WME_TSPEC_HDR_LEN               2
 394 #define WME_TSPEC_BODY_OFF              2
 395 struct wme_tspec {
 396         uint8 oui[DOT11_OUI_LEN];       /* WME_OUI */
 397         uint8 type;                     /* WME_TYPE */
 398         uint8 subtype;                  /* WME_SUBTYPE_TSPEC */
 399         uint8 version;                  /* WME_VERSION */
 400         uint16 ts_info;                 /* TS Info */
 401         uint16 nom_msdu_size;           /* (Nominal or fixed) MSDU Size (bytes) */
 402         uint16 max_msdu_size;           /* Maximum MSDU Size (bytes) */
 403         uint32 min_service_interval;    /* Minimum Service Interval (us) */
 404         uint32 max_service_interval;    /* Maximum Service Interval (us) */
 405         uint32 inactivity_interval;     /* Inactivity Interval (us) */
 406         uint32 service_start;           /* Service Start Time (us) */
 407         uint32 min_rate;                /* Minimum Data Rate (bps) */
 408         uint32 mean_rate;               /* Mean Data Rate (bps) */
 409         uint32 max_burst_size;          /* Maximum Burst Size (bytes) */
 410         uint32 min_phy_rate;            /* Minimum PHY Rate (bps) */
 411         uint32 peak_rate;               /* Peak Data Rate (bps) */
 412         uint32 delay_bound;             /* Delay Bound (us) */
 413         uint16 surplus_bandwidth;       /* Surplus Bandwidth Allowance Factor */
 414         uint16 medium_time;             /* Medium Time (32 us/s periods) */
 415 } PACKED;
 416 typedef struct wme_tspec wme_tspec_t;
 417 #define WME_TSPEC_LEN 56                /* not including 2-byte header */
 418
 419 /* ts_info */
 420 /* 802.1D priority is duplicated - bits 13-11 AND bits 3-1 */
 421 #define TS_INFO_PRIO_SHIFT_HI           11
 422 #define TS_INFO_PRIO_MASK_HI            (0x7 << TS_INFO_PRIO_SHIFT_HI)
 423 #define TS_INFO_PRIO_SHIFT_LO           1
 424 #define TS_INFO_PRIO_MASK_LO            (0x7 << TS_INFO_PRIO_SHIFT_LO)
 425 #define TS_INFO_CONTENTION_SHIFT        7
 426 #define TS_INFO_CONTENTION_MASK         (0x1 << TS_INFO_CONTENTION_SHIFT)
 427 #define TS_INFO_DIRECTION_SHIFT         5
 428 #define TS_INFO_DIRECTION_MASK          (0x3 << TS_INFO_DIRECTION_SHIFT)
 429 #define TS_INFO_UPLINK                  (0 << TS_INFO_DIRECTION_SHIFT)
 430 #define TS_INFO_DOWNLINK                (1 << TS_INFO_DIRECTION_SHIFT)
 431 #define TS_INFO_BIDIRECTIONAL           (3 << TS_INFO_DIRECTION_SHIFT)
 432
 433 /* nom_msdu_size */
 434 #define FIXED_MSDU_SIZE 0x8000          /* MSDU size is fixed */
 435 #define MSDU_SIZE_MASK  0x7fff          /* (Nominal or fixed) MSDU size */
 436
 437 /* surplus_bandwidth */
 438 /* Represented as 3 bits of integer, binary point, 13 bits fraction */
 439 #define INTEGER_SHIFT   13
 440 #define FRACTION_MASK   0x1FFF
 441
 442 /* Management Notification Frame */
 443 struct dot11_management_notification {
 444         uint8 category;                 /* DOT11_ACTION_NOTIFICATION */
 445         uint8 action;
 446         uint8 token;
 447         uint8 status;
 448         uint8 data[1];                  /* Elements */
 449 } PACKED;
 450 #define DOT11_MGMT_NOTIFICATION_LEN 4   /* Fixed length */
 451
 452 /* WME Action Codes */
 453 #define WME_SETUP_REQUEST       0
 454 #define WME_SETUP_RESPONSE      1
 455 #define WME_TEARDOWN            2
 456
 457 /* WME Setup Response Status Codes */
 458 #define WME_ADMISSION_ACCEPTED  0
 459 #define WME_INVALID_PARAMETERS  1
 460 #define WME_ADMISSION_REFUSED   3
 461
 462 /* Macro to take a pointer to a beacon or probe response
 463  * header and return the char* pointer to the SSID info element
 464  */
 465 #define BCN_PRB_SSID(hdr) ((char*)(hdr) + DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_LEN)
 466
 467 /* Authentication frame payload constants */
 468 #define DOT11_OPEN_SYSTEM       0
 469 #define DOT11_SHARED_KEY        1
 470 #define DOT11_CHALLENGE_LEN     128
 471
 472 /* Frame control macros */
 473 #define FC_PVER_MASK            0x3
 474 #define FC_PVER_SHIFT           0
 475 #define FC_TYPE_MASK            0xC
 476 #define FC_TYPE_SHIFT           2
 477 #define FC_SUBTYPE_MASK         0xF0
 478 #define FC_SUBTYPE_SHIFT        4
 479 #define FC_TODS                 0x100
 480 #define FC_TODS_SHIFT           8
 481 #define FC_FROMDS               0x200
 482 #define FC_FROMDS_SHIFT         9
 483 #define FC_MOREFRAG             0x400
 484 #define FC_MOREFRAG_SHIFT       10
 485 #define FC_RETRY                0x800
 486 #define FC_RETRY_SHIFT          11
 487 #define FC_PM                   0x1000
 488 #define FC_PM_SHIFT             12
 489 #define FC_MOREDATA             0x2000
 490 #define FC_MOREDATA_SHIFT       13
 491 #define FC_WEP                  0x4000
 492 #define FC_WEP_SHIFT            14
 493 #define FC_ORDER                0x8000
 494 #define FC_ORDER_SHIFT          15
 495
 496 /* sequence control macros */
 497 #define SEQNUM_SHIFT            4
 498 #define FRAGNUM_MASK            0xF
 499
 500 /* Frame Control type/subtype defs */
 501
 502 /* FC Types */
 503 #define FC_TYPE_MNG             0
 504 #define FC_TYPE_CTL             1
 505 #define FC_TYPE_DATA            2
 506
 507 /* Management Subtypes */
 508 #define FC_SUBTYPE_ASSOC_REQ            0
 509 #define FC_SUBTYPE_ASSOC_RESP           1
 510 #define FC_SUBTYPE_REASSOC_REQ          2
 511 #define FC_SUBTYPE_REASSOC_RESP         3
 512 #define FC_SUBTYPE_PROBE_REQ            4
 513 #define FC_SUBTYPE_PROBE_RESP           5
 514 #define FC_SUBTYPE_BEACON               8
 515 #define FC_SUBTYPE_ATIM                 9
 516 #define FC_SUBTYPE_DISASSOC             10
 517 #define FC_SUBTYPE_AUTH                 11
 518 #define FC_SUBTYPE_DEAUTH               12
 519 #define FC_SUBTYPE_ACTION               13
 520
 521 /* Control Subtypes */
 522 #define FC_SUBTYPE_PS_POLL              10
 523 #define FC_SUBTYPE_RTS                  11
 524 #define FC_SUBTYPE_CTS                  12
 525 #define FC_SUBTYPE_ACK                  13
 526 #define FC_SUBTYPE_CF_END               14
 527 #define FC_SUBTYPE_CF_END_ACK           15
 528
 529 /* Data Subtypes */
 530 #define FC_SUBTYPE_DATA                 0
 531 #define FC_SUBTYPE_DATA_CF_ACK          1
 532 #define FC_SUBTYPE_DATA_CF_POLL         2
 533 #define FC_SUBTYPE_DATA_CF_ACK_POLL     3
 534 #define FC_SUBTYPE_NULL                 4
 535 #define FC_SUBTYPE_CF_ACK               5
 536 #define FC_SUBTYPE_CF_POLL              6
 537 #define FC_SUBTYPE_CF_ACK_POLL          7
 538 #define FC_SUBTYPE_QOS_DATA             8
 539 #define FC_SUBTYPE_QOS_NULL             12
 540
 541 /* type-subtype combos */
 542 #define FC_KIND_MASK            (FC_TYPE_MASK | FC_SUBTYPE_MASK)
 543
 544 #define FC_KIND(t, s) (((t) << FC_TYPE_SHIFT) | ((s) << FC_SUBTYPE_SHIFT))
 545
 546 #define FC_ASSOC_REQ    FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_ASSOC_REQ)
 547 #define FC_ASSOC_RESP   FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_ASSOC_RESP)
 548 #define FC_REASSOC_REQ  FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_REASSOC_REQ)
 549 #define FC_REASSOC_RESP FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_REASSOC_RESP)
 550 #define FC_PROBE_REQ    FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_PROBE_REQ)
 551 #define FC_PROBE_RESP   FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_PROBE_RESP)
 552 #define FC_BEACON       FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_BEACON)
 553 #define FC_DISASSOC     FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_DISASSOC)
 554 #define FC_AUTH         FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_AUTH)
 555 #define FC_DEAUTH       FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_DEAUTH)
 556 #define FC_ACTION       FC_KIND(FC_TYPE_MNG, FC_SUBTYPE_ACTION)
 557
 558 #define FC_PS_POLL      FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_PS_POLL)
 559 #define FC_RTS          FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_RTS)
 560 #define FC_CTS          FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_CTS)
 561 #define FC_ACK          FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_ACK)
 562 #define FC_CF_END       FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_CF_END)
 563 #define FC_CF_END_ACK   FC_KIND(FC_TYPE_CTL, FC_SUBTYPE_CF_END_ACK)
 564
 565 #define FC_DATA         FC_KIND(FC_TYPE_DATA, FC_SUBTYPE_DATA)
 566 #define FC_NULL_DATA    FC_KIND(FC_TYPE_DATA, FC_SUBTYPE_NULL)
 567 #define FC_DATA_CF_ACK  FC_KIND(FC_TYPE_DATA, FC_SUBTYPE_DATA_CF_ACK)
 568 #define FC_QOS_DATA     FC_KIND(FC_TYPE_DATA, FC_SUBTYPE_QOS_DATA)
 569 #define FC_QOS_NULL     FC_KIND(FC_TYPE_DATA, FC_SUBTYPE_QOS_NULL)
 570
 571 /* QoS Control Field */
 572
 573 /* 802.1D Tag */
 574 #define QOS_PRIO_SHIFT          0
 575 #define QOS_PRIO_MASK           0x0007
 576 #define QOS_PRIO(qos)           (((qos) & QOS_PRIO_MASK) >> QOS_PRIO_SHIFT)
 577
 578 /* Ack Policy (0 means Acknowledge) */
 579 #define QOS_ACK_SHIFT           5
 580 #define QOS_ACK_MASK            0x0060
 581 #define QOS_ACK(qos)            (((qos) & QOS_ACK_MASK) >> QOS_ACK_SHIFT)
 582
 583 /* Management Frames */
 584
 585 /* Management Frame Constants */
 586
 587 /* Fixed fields */
 588 #define DOT11_MNG_AUTH_ALGO_LEN         2
 589 #define DOT11_MNG_AUTH_SEQ_LEN          2
 590 #define DOT11_MNG_BEACON_INT_LEN        2
 591 #define DOT11_MNG_CAP_LEN               2
 592 #define DOT11_MNG_AP_ADDR_LEN           6
 593 #define DOT11_MNG_LISTEN_INT_LEN        2
 594 #define DOT11_MNG_REASON_LEN            2
 595 #define DOT11_MNG_AID_LEN               2
 596 #define DOT11_MNG_STATUS_LEN            2
 597 #define DOT11_MNG_TIMESTAMP_LEN         8
 598
 599 /* DUR/ID field in assoc resp is 0xc000 | AID */
 600 #define DOT11_AID_MASK                  0x3fff
 601
 602 /* Reason Codes */
 603 #define DOT11_RC_RESERVED                       0
 604 #define DOT11_RC_UNSPECIFIED                    1       /* Unspecified reason */
 605 #define DOT11_RC_AUTH_INVAL                     2       /* Previous authentication no longer valid */
 606 #define DOT11_RC_DEAUTH_LEAVING                 3       /* Deauthenticated because sending station is
 607                                                            leaving (or has left) IBSS or ESS */
 608 #define DOT11_RC_INACTIVITY                     4       /* Disassociated due to inactivity */
 609 #define DOT11_RC_BUSY                           5       /* Disassociated because AP is unable to handle
 610                                                            all currently associated stations */
 611 #define DOT11_RC_INVAL_CLASS_2                  6       /* Class 2 frame received from
 612                                                            nonauthenticated station */
 613 #define DOT11_RC_INVAL_CLASS_3                  7       /* Class 3 frame received from
 614                                                            nonassociated station */
 615 #define DOT11_RC_DISASSOC_LEAVING               8       /* Disassociated because sending station is
 616                                                            leaving (or has left) BSS */
 617 #define DOT11_RC_NOT_AUTH                       9       /* Station requesting (re)association is
 618                                                            not authenticated with responding station */
 619 #define DOT11_RC_MAX                            23      /* Reason codes > 23 are reserved */
 620
 621 /* Status Codes */
 622 #define DOT11_STATUS_SUCCESS                    0       /* Successful */
 623 #define DOT11_STATUS_FAILURE                    1       /* Unspecified failure */
 624 #define DOT11_STATUS_CAP_MISMATCH               10      /* Cannot support all requested capabilities
 625                                                            in the Capability Information field */
 626 #define DOT11_STATUS_REASSOC_FAIL               11      /* Reassociation denied due to inability to
 627                                                            confirm that association exists */
 628 #define DOT11_STATUS_ASSOC_FAIL                 12      /* Association denied due to reason outside
 629                                                            the scope of this standard */
 630 #define DOT11_STATUS_AUTH_MISMATCH              13      /* Responding station does not support the
 631                                                            specified authentication algorithm */
 632 #define DOT11_STATUS_AUTH_SEQ                   14      /* Received an Authentication frame with
 633                                                            authentication transaction sequence number
 634                                                            out of expected sequence */
 635 #define DOT11_STATUS_AUTH_CHALLENGE_FAIL        15      /* Authentication rejected because of challenge failure */
 636 #define DOT11_STATUS_AUTH_TIMEOUT               16      /* Authentication rejected due to timeout waiting
 637                                                            for next frame in sequence */
 638 #define DOT11_STATUS_ASSOC_BUSY_FAIL            17      /* Association denied because AP is unable to
 639                                                            handle additional associated stations */
 640 #define DOT11_STATUS_ASSOC_RATE_MISMATCH        18      /* Association denied due to requesting station
 641                                                            not supporting all of the data rates in the
 642                                                            BSSBasicRateSet parameter */
 643 #define DOT11_STATUS_ASSOC_SHORT_REQUIRED       19      /* Association denied due to requesting station
 644                                                            not supporting the Short Preamble option */
 645 #define DOT11_STATUS_ASSOC_PBCC_REQUIRED        20      /* Association denied due to requesting station
 646                                                            not supporting the PBCC Modulation option */
 647 #define DOT11_STATUS_ASSOC_AGILITY_REQUIRED     21      /* Association denied due to requesting station
 648                                                            not supporting the Channel Agility option */
 649 #define DOT11_STATUS_ASSOC_SPECTRUM_REQUIRED    22      /* Association denied because Spectrum Management
 650                                                            capability is required. */
 651 #define DOT11_STATUS_ASSOC_BAD_POWER_CAP        23      /* Association denied because the info in the
 652                                                            Power Cap element is unacceptable. */
 653 #define DOT11_STATUS_ASSOC_BAD_SUP_CHANNELS     24      /* Association denied because the info in the
 654                                                            Supported Channel element is unacceptable */
 655 #define DOT11_STATUS_ASSOC_SHORTSLOT_REQUIRED   25      /* Association denied due to requesting station
 656                                                            not supporting the Short Slot Time option */
 657 #define DOT11_STATUS_ASSOC_ERPBCC_REQUIRED      26      /* Association denied due to requesting station
 658                                                            not supporting the ER-PBCC Modulation option */
 659 #define DOT11_STATUS_ASSOC_DSSOFDM_REQUIRED     27      /* Association denied due to requesting station
 660                                                            not supporting the DSS-OFDM option */
 661
 662 /* Info Elts, length of INFORMATION portion of Info Elts */
 663 #define DOT11_MNG_DS_PARAM_LEN                  1
 664 #define DOT11_MNG_IBSS_PARAM_LEN                2
 665
 666 /* TIM Info element has 3 bytes fixed info in INFORMATION field,
 667  * followed by 1 to 251 bytes of Partial Virtual Bitmap */
 668 #define DOT11_MNG_TIM_FIXED_LEN                 3
 669 #define DOT11_MNG_TIM_DTIM_COUNT                0
 670 #define DOT11_MNG_TIM_DTIM_PERIOD               1
 671 #define DOT11_MNG_TIM_BITMAP_CTL                2
 672 #define DOT11_MNG_TIM_PVB                       3
 673
 674 /* TLV defines */
 675 #define TLV_TAG_OFF             0
 676 #define TLV_LEN_OFF             1
 677 #define TLV_HDR_LEN             2
 678 #define TLV_BODY_OFF            2
 679
 680 /* Management Frame Information Element IDs */
 681 #define DOT11_MNG_SSID_ID                       0
 682 #define DOT11_MNG_RATES_ID                      1
 683 #define DOT11_MNG_FH_PARMS_ID                   2
 684 #define DOT11_MNG_DS_PARMS_ID                   3
 685 #define DOT11_MNG_CF_PARMS_ID                   4
 686 #define DOT11_MNG_TIM_ID                        5
 687 #define DOT11_MNG_IBSS_PARMS_ID                 6
 688 #define DOT11_MNG_COUNTRY_ID                    7
 689 #define DOT11_MNG_HOPPING_PARMS_ID              8
 690 #define DOT11_MNG_HOPPING_TABLE_ID              9
 691 #define DOT11_MNG_REQUEST_ID                    10
 692 #define DOT11_MNG_CHALLENGE_ID                  16
 693 #define DOT11_MNG_PWR_CONSTRAINT_ID             32    /* 11H PowerConstraint    */
 694 #define DOT11_MNG_PWR_CAP_ID                    33    /* 11H PowerCapability    */
 695 #define DOT11_MNG_TPC_REQUEST_ID                34    /* 11H TPC Request        */
 696 #define DOT11_MNG_TPC_REPORT_ID                 35    /* 11H TPC Report         */
 697 #define DOT11_MNG_SUPP_CHANNELS_ID              36    /* 11H Supported Channels */
 698 #define DOT11_MNG_CHANNEL_SWITCH_ID             37    /* 11H ChannelSwitch Announcement*/
 699 #define DOT11_MNG_MEASURE_REQUEST_ID            38    /* 11H MeasurementRequest */
 700 #define DOT11_MNG_MEASURE_REPORT_ID             39    /* 11H MeasurementReport  */
 701 #define DOT11_MNG_QUIET_ID                      40    /* 11H Quiet              */
 702 #define DOT11_MNG_IBSS_DFS_ID                   41    /* 11H IBSS_DFS           */
 703 #define DOT11_MNG_ERP_ID                        42
 704 #define DOT11_MNG_NONERP_ID                     47
 705 #define DOT11_MNG_EXT_RATES_ID                  50
 706 #define DOT11_MNG_WPA_ID                        221
 707 #define DOT11_MNG_PROPR_ID                      221
 708
 709 /* ERP info element bit values */
 710 #define DOT11_MNG_ERP_LEN                       1       /* ERP is currently 1 byte long */
 711 #define DOT11_MNG_NONERP_PRESENT                0x01    /* NonERP (802.11b) STAs are present in the BSS */
 712 #define DOT11_MNG_USE_PROTECTION                0x02    /* Use protection mechanisms for ERP-OFDM frames */
 713 #define DOT11_MNG_BARKER_PREAMBLE               0x04    /* Short Preambles: 0 == allowed, 1 == not allowed */
 714
 715 /* Capability Information Field */
 716 #define DOT11_CAP_ESS                           0x0001
 717 #define DOT11_CAP_IBSS                          0x0002
 718 #define DOT11_CAP_POLLABLE                      0x0004
 719 #define DOT11_CAP_POLL_RQ                       0x0008
 720 #define DOT11_CAP_PRIVACY                       0x0010
 721 #define DOT11_CAP_SHORT                         0x0020
 722 #define DOT11_CAP_PBCC                          0x0040
 723 #define DOT11_CAP_AGILITY                       0x0080
 724 #define DOT11_CAP_SPECTRUM                      0x0100
 725 #define DOT11_CAP_SHORTSLOT                     0x0400
 726 #define DOT11_CAP_CCK_OFDM                      0x2000
 727
 728 /* Action Frame Constants */
 729 #define DOT11_ACTION_CAT_ERR_MASK       0x80
 730 #define DOT11_ACTION_CAT_SPECT_MNG      0x00
 731 #define DOT11_ACTION_NOTIFICATION       0x11    /* 17 */
 732
 733 #define DOT11_ACTION_ID_M_REQ           0
 734 #define DOT11_ACTION_ID_M_REP           1
 735 #define DOT11_ACTION_ID_TPC_REQ         2
 736 #define DOT11_ACTION_ID_TPC_REP         3
 737 #define DOT11_ACTION_ID_CHANNEL_SWITCH  4
 738
 739 /* MLME Enumerations */
 740 #define DOT11_BSSTYPE_INFRASTRUCTURE            0
 741 #define DOT11_BSSTYPE_INDEPENDENT               1
 742 #define DOT11_BSSTYPE_ANY                       2
 743 #define DOT11_SCANTYPE_ACTIVE                   0
 744 #define DOT11_SCANTYPE_PASSIVE                  1
 745
 746 /* 802.11 A PHY constants */
 747 #define APHY_SLOT_TIME          9
 748 #define APHY_SIFS_TIME          16
 749 #define APHY_DIFS_TIME          (APHY_SIFS_TIME + (2 * APHY_SLOT_TIME))
 750 #define APHY_PREAMBLE_TIME      16
 751 #define APHY_SIGNAL_TIME        4
 752 #define APHY_SYMBOL_TIME        4
 753 #define APHY_SERVICE_NBITS      16
 754 #define APHY_TAIL_NBITS         6
 755 #define APHY_CWMIN              15
 756
 757 /* 802.11 B PHY constants */
 758 #define BPHY_SLOT_TIME          20
 759 #define BPHY_SIFS_TIME          10
 760 #define BPHY_DIFS_TIME          50
 761 #define BPHY_PLCP_TIME          192
 762 #define BPHY_PLCP_SHORT_TIME    96
 763 #define BPHY_CWMIN              31
 764
 765 /* 802.11 G constants */
 766 #define DOT11_OFDM_SIGNAL_EXTENSION     6
 767
 768 #define PHY_CWMAX               1023
 769
 770 #define DOT11_MAXNUMFRAGS       16      /* max # fragments per MSDU */
 771
 772 /* dot11Counters Table - 802.11 spec., Annex D */
 773 typedef struct d11cnt {
 774         uint32          txfrag;         /* dot11TransmittedFragmentCount */
 775         uint32          txmulti;        /* dot11MulticastTransmittedFrameCount */
 776         uint32          txfail;         /* dot11FailedCount */
 777         uint32          txretry;        /* dot11RetryCount */
 778         uint32          txretrie;       /* dot11MultipleRetryCount */
 779         uint32          rxdup;          /* dot11FrameduplicateCount */
 780         uint32          txrts;          /* dot11RTSSuccessCount */
 781         uint32          txnocts;        /* dot11RTSFailureCount */
 782         uint32          txnoack;        /* dot11ACKFailureCount */
 783         uint32          rxfrag;         /* dot11ReceivedFragmentCount */
 784         uint32          rxmulti;        /* dot11MulticastReceivedFrameCount */
 785         uint32          rxcrc;          /* dot11FCSErrorCount */
 786         uint32          txfrmsnt;       /* dot11TransmittedFrameCount */
 787         uint32          rxundec;        /* dot11WEPUndecryptableCount */
 788 } d11cnt_t;
 789
 790 /* BRCM OUI */
 791 #define BRCM_OUI                "\x00\x10\x18"
 792
 793 /* BRCM info element */
 794 struct brcm_ie {
 795         uchar   id;
 796         uchar   len;
 797         uchar   oui[3];
 798         uchar   ver;
 799         uchar   assoc;          /*  # of assoc STAs */
 800         uchar   flags;          /* misc flags */
 801 } PACKED;
 802 #define BRCM_IE_LEN             8
 803 typedef struct brcm_ie brcm_ie_t;
 804 #define BRCM_IE_VER             1
 805
 806 /* brcm_ie flags */
 807 #define BRF_ABCAP               0x1     /* afterburner capable */
 808 #define BRF_ABRQRD              0x2     /* afterburner requested */
 809
 810 /* WPA definitions */
 811 #define WPA_VERSION             1
 812 #define WPA_OUI                 "\x00\x50\xF2"
 813
 814 #define WPA_OUI_LEN     3
 815
 816 /* WPA authentication modes */
 817 #define WPA_AUTH_NONE           0       /* None */
 818 #define WPA_AUTH_UNSPECIFIED    1       /* Unspecified authentication over 802.1X: default for WPA */
 819 #define WPA_AUTH_PSK            2       /* Pre-shared Key over 802.1X */
 820 #define WPA_AUTH_DISABLED       255     /* Legacy (i.e., non-WPA) */
 821
 822 #define IS_WPA_AUTH(auth)       ((auth) == WPA_AUTH_NONE || \
 823                                  (auth) == WPA_AUTH_UNSPECIFIED || \
 824                                  (auth) == WPA_AUTH_PSK)
 825
 826
 827 /* Key related defines */
 828 #define DOT11_MAX_DEFAULT_KEYS  4       /* number of default keys */
 829 #define DOT11_MAX_KEY_SIZE      32      /* max size of any key */
 830 #define DOT11_MAX_IV_SIZE       16      /* max size of any IV */
 831 #define DOT11_EXT_IV_FLAG       (1<<5)  /* flag to indicate IV is > 4 bytes */
 832
 833 #define WEP1_KEY_SIZE           5       /* max size of any WEP key */
 834 #define WEP1_KEY_HEX_SIZE       10      /* size of WEP key in hex. */
 835 #define WEP128_KEY_SIZE         13      /* max size of any WEP key */
 836 #define WEP128_KEY_HEX_SIZE     26      /* size of WEP key in hex. */
 837 #define TKIP_MIC_SIZE           8       /* size of TKIP MIC */
 838 #define TKIP_EOM_SIZE           7       /* max size of TKIP EOM */
 839 #define TKIP_EOM_FLAG           0x5a    /* TKIP EOM flag byte */
 840 #define TKIP_KEY_SIZE           32      /* size of any TKIP key */
 841 #define TKIP_MIC_AUTH_TX        16      /* offset to Authenticator MIC TX key */
 842 #define TKIP_MIC_AUTH_RX        24      /* offset to Authenticator MIC RX key */
 843 #define TKIP_MIC_SUP_RX         16      /* offset to Supplicant MIC RX key */
 844 #define TKIP_MIC_SUP_TX         24      /* offset to Supplicant MIC TX key */
 845 #define AES_KEY_SIZE            16      /* size of AES key */
 846
 847 #undef PACKED
 848 #if !defined(__GNUC__)
 849 #pragma pack()
 850 #endif
 851
 852 #endif /* _802_11_H_ */