include/net/ieee80211.h

   1 /*
   2  * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
   3  * remains copyright by the original authors
   4  *
   5  * Portions of the merged code are based on Host AP (software wireless
   6  * LAN access point) driver for Intersil Prism2/2.5/3.
   7  *
   8  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   9  * <j@w1.fi>
  10  * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
  11  *
  12  * Adaption to a generic IEEE 802.11 stack by James Ketrenos
  13  * <jketreno@linux.intel.com>
  14  * Copyright (c) 2004-2005, Intel Corporation
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License version 2 as
  18  * published by the Free Software Foundation. See README and COPYING for
  19  * more details.
  20  *
  21  * API Version History
  22  * 1.0.x -- Initial version
  23  * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
  24  *          various structure changes, and crypto API init method
  25  */
  26 #ifndef IEEE80211_H
  27 #define IEEE80211_H
  28 #include <linux/if_ether.h>     /* ETH_ALEN */
  29 #include <linux/kernel.h>       /* ARRAY_SIZE */
  30 #include <linux/wireless.h>
  31 #include <linux/ieee80211.h>
  32
  33 #include <net/lib80211.h>
  34
  35 #define IEEE80211_VERSION "git-1.1.13"
  36
  37 #define IEEE80211_DATA_LEN              2304
  38 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
  39    6.2.1.1.2.
  40
  41    The figure in section 7.1.2 suggests a body size of up to 2312
  42    bytes is allowed, which is a bit confusing, I suspect this
  43    represents the 2304 bytes of real data, plus a possible 8 bytes of
  44    WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
  45
  46 #define IEEE80211_1ADDR_LEN 10
  47 #define IEEE80211_2ADDR_LEN 16
  48 #define IEEE80211_3ADDR_LEN 24
  49 #define IEEE80211_4ADDR_LEN 30
  50 #define IEEE80211_FCS_LEN    4
  51 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
  52 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
  53
  54 #define MIN_FRAG_THRESHOLD     256U
  55 #define MAX_FRAG_THRESHOLD     2346U
  56
  57 /* Frame control field constants */
  58 #define IEEE80211_FCTL_VERS             0x0003
  59 #define IEEE80211_FCTL_FTYPE            0x000c
  60 #define IEEE80211_FCTL_STYPE            0x00f0
  61 #define IEEE80211_FCTL_TODS             0x0100
  62 #define IEEE80211_FCTL_FROMDS           0x0200
  63 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  64 #define IEEE80211_FCTL_RETRY            0x0800
  65 #define IEEE80211_FCTL_PM               0x1000
  66 #define IEEE80211_FCTL_MOREDATA         0x2000
  67 #define IEEE80211_FCTL_PROTECTED        0x4000
  68 #define IEEE80211_FCTL_ORDER            0x8000
  69
  70 #define IEEE80211_FTYPE_MGMT            0x0000
  71 #define IEEE80211_FTYPE_CTL             0x0004
  72 #define IEEE80211_FTYPE_DATA            0x0008
  73
  74 /* management */
  75 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  76 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  77 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  78 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  79 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  80 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  81 #define IEEE80211_STYPE_BEACON          0x0080
  82 #define IEEE80211_STYPE_ATIM            0x0090
  83 #define IEEE80211_STYPE_DISASSOC        0x00A0
  84 #define IEEE80211_STYPE_AUTH            0x00B0
  85 #define IEEE80211_STYPE_DEAUTH          0x00C0
  86 #define IEEE80211_STYPE_ACTION          0x00D0
  87
  88 /* control */
  89 #define IEEE80211_STYPE_PSPOLL          0x00A0
  90 #define IEEE80211_STYPE_RTS             0x00B0
  91 #define IEEE80211_STYPE_CTS             0x00C0
  92 #define IEEE80211_STYPE_ACK             0x00D0
  93 #define IEEE80211_STYPE_CFEND           0x00E0
  94 #define IEEE80211_STYPE_CFENDACK        0x00F0
  95
  96 /* data */
  97 #define IEEE80211_STYPE_DATA            0x0000
  98 #define IEEE80211_STYPE_DATA_CFACK      0x0010
  99 #define IEEE80211_STYPE_DATA_CFPOLL     0x0020
 100 #define IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
 101 #define IEEE80211_STYPE_NULLFUNC        0x0040
 102 #define IEEE80211_STYPE_CFACK           0x0050
 103 #define IEEE80211_STYPE_CFPOLL          0x0060
 104 #define IEEE80211_STYPE_CFACKPOLL       0x0070
 105 #define IEEE80211_STYPE_QOS_DATA        0x0080
 106
 107 #define IEEE80211_SCTL_FRAG             0x000F
 108 #define IEEE80211_SCTL_SEQ              0xFFF0
 109
 110 /* QOS control */
 111 #define IEEE80211_QCTL_TID              0x000F
 112
 113 /* debug macros */
 114
 115 #ifdef CONFIG_IEEE80211_DEBUG
 116 extern u32 ieee80211_debug_level;
 117 #define IEEE80211_DEBUG(level, fmt, args...) \
 118 do { if (ieee80211_debug_level & (level)) \
 119   printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
 120          in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
 121 static inline bool ieee80211_ratelimit_debug(u32 level)
 122 {
 123         return (ieee80211_debug_level & level) && net_ratelimit();
 124 }
 125 #else
 126 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
 127 static inline bool ieee80211_ratelimit_debug(u32 level)
 128 {
 129         return false;
 130 }
 131 #endif                          /* CONFIG_IEEE80211_DEBUG */
 132
 133 /*
 134  * To use the debug system:
 135  *
 136  * If you are defining a new debug classification, simply add it to the #define
 137  * list here in the form of:
 138  *
 139  * #define IEEE80211_DL_xxxx VALUE
 140  *
 141  * shifting value to the left one bit from the previous entry.  xxxx should be
 142  * the name of the classification (for example, WEP)
 143  *
 144  * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
 145  * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
 146  * to send output to that classification.
 147  *
 148  * To add your debug level to the list of levels seen when you perform
 149  *
 150  * % cat /proc/net/ieee80211/debug_level
 151  *
 152  * you simply need to add your entry to the ieee80211_debug_level array.
 153  *
 154  * If you do not see debug_level in /proc/net/ieee80211 then you do not have
 155  * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
 156  *
 157  */
 158
 159 #define IEEE80211_DL_INFO          (1<<0)
 160 #define IEEE80211_DL_WX            (1<<1)
 161 #define IEEE80211_DL_SCAN          (1<<2)
 162 #define IEEE80211_DL_STATE         (1<<3)
 163 #define IEEE80211_DL_MGMT          (1<<4)
 164 #define IEEE80211_DL_FRAG          (1<<5)
 165 #define IEEE80211_DL_DROP          (1<<7)
 166
 167 #define IEEE80211_DL_TX            (1<<8)
 168 #define IEEE80211_DL_RX            (1<<9)
 169 #define IEEE80211_DL_QOS           (1<<31)
 170
 171 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
 172 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
 173 #define IEEE80211_DEBUG_INFO(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
 174
 175 #define IEEE80211_DEBUG_WX(f, a...)     IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
 176 #define IEEE80211_DEBUG_SCAN(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
 177 #define IEEE80211_DEBUG_STATE(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
 178 #define IEEE80211_DEBUG_MGMT(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
 179 #define IEEE80211_DEBUG_FRAG(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
 180 #define IEEE80211_DEBUG_DROP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
 181 #define IEEE80211_DEBUG_TX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
 182 #define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
 183 #define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
 184 #include <linux/netdevice.h>
 185 #include <linux/if_arp.h>       /* ARPHRD_ETHER */
 186
 187 #ifndef WIRELESS_SPY
 188 #define WIRELESS_SPY            /* enable iwspy support */
 189 #endif
 190 #include <net/iw_handler.h>     /* new driver API */
 191
 192 #define ETH_P_PREAUTH 0x88C7    /* IEEE 802.11i pre-authentication */
 193
 194 #ifndef ETH_P_80211_RAW
 195 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 196 #endif
 197
 198 /* IEEE 802.11 defines */
 199
 200 #define P80211_OUI_LEN 3
 201
 202 struct ieee80211_snap_hdr {
 203
 204         u8 dsap;                /* always 0xAA */
 205         u8 ssap;                /* always 0xAA */
 206         u8 ctrl;                /* always 0x03 */
 207         u8 oui[P80211_OUI_LEN]; /* organizational universal id */
 208
 209 } __attribute__ ((packed));
 210
 211 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 212
 213 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
 214 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
 215 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
 216
 217 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
 218 #define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 219
 220 /* Action categories - 802.11h */
 221 enum ieee80211_actioncategories {
 222         WLAN_ACTION_SPECTRUM_MGMT = 0,
 223         /* Reserved 1-127  */
 224         /* Error    128-255 */
 225 };
 226
 227 /* Action details - 802.11h */
 228 enum ieee80211_actiondetails {
 229         WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
 230         WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
 231         WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
 232         WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
 233         WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
 234         /* 5 - 255 Reserved */
 235 };
 236
 237 #define IEEE80211_STATMASK_SIGNAL (1<<0)
 238 #define IEEE80211_STATMASK_RSSI (1<<1)
 239 #define IEEE80211_STATMASK_NOISE (1<<2)
 240 #define IEEE80211_STATMASK_RATE (1<<3)
 241 #define IEEE80211_STATMASK_WEMASK 0x7
 242
 243 #define IEEE80211_CCK_MODULATION    (1<<0)
 244 #define IEEE80211_OFDM_MODULATION   (1<<1)
 245
 246 #define IEEE80211_24GHZ_BAND     (1<<0)
 247 #define IEEE80211_52GHZ_BAND     (1<<1)
 248
 249 #define IEEE80211_CCK_RATE_1MB                  0x02
 250 #define IEEE80211_CCK_RATE_2MB                  0x04
 251 #define IEEE80211_CCK_RATE_5MB                  0x0B
 252 #define IEEE80211_CCK_RATE_11MB                 0x16
 253 #define IEEE80211_OFDM_RATE_6MB                 0x0C
 254 #define IEEE80211_OFDM_RATE_9MB                 0x12
 255 #define IEEE80211_OFDM_RATE_12MB                0x18
 256 #define IEEE80211_OFDM_RATE_18MB                0x24
 257 #define IEEE80211_OFDM_RATE_24MB                0x30
 258 #define IEEE80211_OFDM_RATE_36MB                0x48
 259 #define IEEE80211_OFDM_RATE_48MB                0x60
 260 #define IEEE80211_OFDM_RATE_54MB                0x6C
 261 #define IEEE80211_BASIC_RATE_MASK               0x80
 262
 263 #define IEEE80211_CCK_RATE_1MB_MASK             (1<<0)
 264 #define IEEE80211_CCK_RATE_2MB_MASK             (1<<1)
 265 #define IEEE80211_CCK_RATE_5MB_MASK             (1<<2)
 266 #define IEEE80211_CCK_RATE_11MB_MASK            (1<<3)
 267 #define IEEE80211_OFDM_RATE_6MB_MASK            (1<<4)
 268 #define IEEE80211_OFDM_RATE_9MB_MASK            (1<<5)
 269 #define IEEE80211_OFDM_RATE_12MB_MASK           (1<<6)
 270 #define IEEE80211_OFDM_RATE_18MB_MASK           (1<<7)
 271 #define IEEE80211_OFDM_RATE_24MB_MASK           (1<<8)
 272 #define IEEE80211_OFDM_RATE_36MB_MASK           (1<<9)
 273 #define IEEE80211_OFDM_RATE_48MB_MASK           (1<<10)
 274 #define IEEE80211_OFDM_RATE_54MB_MASK           (1<<11)
 275
 276 #define IEEE80211_CCK_RATES_MASK                0x0000000F
 277 #define IEEE80211_CCK_BASIC_RATES_MASK  (IEEE80211_CCK_RATE_1MB_MASK | \
 278         IEEE80211_CCK_RATE_2MB_MASK)
 279 #define IEEE80211_CCK_DEFAULT_RATES_MASK        (IEEE80211_CCK_BASIC_RATES_MASK | \
 280         IEEE80211_CCK_RATE_5MB_MASK | \
 281         IEEE80211_CCK_RATE_11MB_MASK)
 282
 283 #define IEEE80211_OFDM_RATES_MASK               0x00000FF0
 284 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
 285         IEEE80211_OFDM_RATE_12MB_MASK | \
 286         IEEE80211_OFDM_RATE_24MB_MASK)
 287 #define IEEE80211_OFDM_DEFAULT_RATES_MASK       (IEEE80211_OFDM_BASIC_RATES_MASK | \
 288         IEEE80211_OFDM_RATE_9MB_MASK  | \
 289         IEEE80211_OFDM_RATE_18MB_MASK | \
 290         IEEE80211_OFDM_RATE_36MB_MASK | \
 291         IEEE80211_OFDM_RATE_48MB_MASK | \
 292         IEEE80211_OFDM_RATE_54MB_MASK)
 293 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
 294                                 IEEE80211_CCK_DEFAULT_RATES_MASK)
 295
 296 #define IEEE80211_NUM_OFDM_RATES            8
 297 #define IEEE80211_NUM_CCK_RATES             4
 298 #define IEEE80211_OFDM_SHIFT_MASK_A         4
 299
 300 /* NOTE: This data is for statistical purposes; not all hardware provides this
 301  *       information for frames received.
 302  *       For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
 303  */
 304 struct ieee80211_rx_stats {
 305         u32 mac_time;
 306         s8 rssi;
 307         u8 signal;
 308         u8 noise;
 309         u16 rate;               /* in 100 kbps */
 310         u8 received_channel;
 311         u8 control;
 312         u8 mask;
 313         u8 freq;
 314         u16 len;
 315         u64 tsf;
 316         u32 beacon_time;
 317 };
 318
 319 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 320  * three fragmented frames. This define can be increased to support more
 321  * concurrent frames, but it should be noted that each entry can consume about
 322  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 323 #define IEEE80211_FRAG_CACHE_LEN 4
 324
 325 struct ieee80211_frag_entry {
 326         unsigned long first_frag_time;
 327         unsigned int seq;
 328         unsigned int last_frag;
 329         struct sk_buff *skb;
 330         u8 src_addr[ETH_ALEN];
 331         u8 dst_addr[ETH_ALEN];
 332 };
 333
 334 struct ieee80211_stats {
 335         unsigned int tx_unicast_frames;
 336         unsigned int tx_multicast_frames;
 337         unsigned int tx_fragments;
 338         unsigned int tx_unicast_octets;
 339         unsigned int tx_multicast_octets;
 340         unsigned int tx_deferred_transmissions;
 341         unsigned int tx_single_retry_frames;
 342         unsigned int tx_multiple_retry_frames;
 343         unsigned int tx_retry_limit_exceeded;
 344         unsigned int tx_discards;
 345         unsigned int rx_unicast_frames;
 346         unsigned int rx_multicast_frames;
 347         unsigned int rx_fragments;
 348         unsigned int rx_unicast_octets;
 349         unsigned int rx_multicast_octets;
 350         unsigned int rx_fcs_errors;
 351         unsigned int rx_discards_no_buffer;
 352         unsigned int tx_discards_wrong_sa;
 353         unsigned int rx_discards_undecryptable;
 354         unsigned int rx_message_in_msg_fragments;
 355         unsigned int rx_message_in_bad_msg_fragments;
 356 };
 357
 358 struct ieee80211_device;
 359
 360 #define SEC_KEY_1               (1<<0)
 361 #define SEC_KEY_2               (1<<1)
 362 #define SEC_KEY_3               (1<<2)
 363 #define SEC_KEY_4               (1<<3)
 364 #define SEC_ACTIVE_KEY          (1<<4)
 365 #define SEC_AUTH_MODE           (1<<5)
 366 #define SEC_UNICAST_GROUP       (1<<6)
 367 #define SEC_LEVEL               (1<<7)
 368 #define SEC_ENABLED             (1<<8)
 369 #define SEC_ENCRYPT             (1<<9)
 370
 371 #define SEC_LEVEL_0             0       /* None */
 372 #define SEC_LEVEL_1             1       /* WEP 40 and 104 bit */
 373 #define SEC_LEVEL_2             2       /* Level 1 + TKIP */
 374 #define SEC_LEVEL_2_CKIP        3       /* Level 1 + CKIP */
 375 #define SEC_LEVEL_3             4       /* Level 2 + CCMP */
 376
 377 #define SEC_ALG_NONE            0
 378 #define SEC_ALG_WEP             1
 379 #define SEC_ALG_TKIP            2
 380 #define SEC_ALG_CCMP            3
 381
 382 #define WEP_KEYS                4
 383 #define WEP_KEY_LEN             13
 384 #define SCM_KEY_LEN             32
 385 #define SCM_TEMPORAL_KEY_LENGTH 16
 386
 387 struct ieee80211_security {
 388         u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
 389         u8 auth_mode;
 390         u8 encode_alg[WEP_KEYS];
 391         u8 key_sizes[WEP_KEYS];
 392         u8 keys[WEP_KEYS][SCM_KEY_LEN];
 393         u8 level;
 394         u16 flags;
 395 } __attribute__ ((packed));
 396
 397 /*
 398
 399  802.11 data frame from AP
 400
 401       ,-------------------------------------------------------------------.
 402 Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
 403       |------|------|---------|---------|---------|------|---------|------|
 404 Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
 405       |      | tion | (BSSID) |         |         | ence |  data   |      |
 406       `-------------------------------------------------------------------'
 407
 408 Total: 28-2340 bytes
 409
 410 */
 411
 412 #define BEACON_PROBE_SSID_ID_POSITION 12
 413
 414 /* Management Frame Information Element Types */
 415 enum ieee80211_mfie {
 416         MFIE_TYPE_SSID = 0,
 417         MFIE_TYPE_RATES = 1,
 418         MFIE_TYPE_FH_SET = 2,
 419         MFIE_TYPE_DS_SET = 3,
 420         MFIE_TYPE_CF_SET = 4,
 421         MFIE_TYPE_TIM = 5,
 422         MFIE_TYPE_IBSS_SET = 6,
 423         MFIE_TYPE_COUNTRY = 7,
 424         MFIE_TYPE_HOP_PARAMS = 8,
 425         MFIE_TYPE_HOP_TABLE = 9,
 426         MFIE_TYPE_REQUEST = 10,
 427         MFIE_TYPE_CHALLENGE = 16,
 428         MFIE_TYPE_POWER_CONSTRAINT = 32,
 429         MFIE_TYPE_POWER_CAPABILITY = 33,
 430         MFIE_TYPE_TPC_REQUEST = 34,
 431         MFIE_TYPE_TPC_REPORT = 35,
 432         MFIE_TYPE_SUPP_CHANNELS = 36,
 433         MFIE_TYPE_CSA = 37,
 434         MFIE_TYPE_MEASURE_REQUEST = 38,
 435         MFIE_TYPE_MEASURE_REPORT = 39,
 436         MFIE_TYPE_QUIET = 40,
 437         MFIE_TYPE_IBSS_DFS = 41,
 438         MFIE_TYPE_ERP_INFO = 42,
 439         MFIE_TYPE_RSN = 48,
 440         MFIE_TYPE_RATES_EX = 50,
 441         MFIE_TYPE_GENERIC = 221,
 442         MFIE_TYPE_QOS_PARAMETER = 222,
 443 };
 444
 445 struct ieee80211_hdr_1addr {
 446         __le16 frame_ctl;
 447         __le16 duration_id;
 448         u8 addr1[ETH_ALEN];
 449         u8 payload[0];
 450 } __attribute__ ((packed));
 451
 452 struct ieee80211_hdr_2addr {
 453         __le16 frame_ctl;
 454         __le16 duration_id;
 455         u8 addr1[ETH_ALEN];
 456         u8 addr2[ETH_ALEN];
 457         u8 payload[0];
 458 } __attribute__ ((packed));
 459
 460 struct ieee80211_hdr_3addr {
 461         __le16 frame_ctl;
 462         __le16 duration_id;
 463         u8 addr1[ETH_ALEN];
 464         u8 addr2[ETH_ALEN];
 465         u8 addr3[ETH_ALEN];
 466         __le16 seq_ctl;
 467         u8 payload[0];
 468 } __attribute__ ((packed));
 469
 470 struct ieee80211_hdr_4addr {
 471         __le16 frame_ctl;
 472         __le16 duration_id;
 473         u8 addr1[ETH_ALEN];
 474         u8 addr2[ETH_ALEN];
 475         u8 addr3[ETH_ALEN];
 476         __le16 seq_ctl;
 477         u8 addr4[ETH_ALEN];
 478         u8 payload[0];
 479 } __attribute__ ((packed));
 480
 481 struct ieee80211_hdr_3addrqos {
 482         __le16 frame_ctl;
 483         __le16 duration_id;
 484         u8 addr1[ETH_ALEN];
 485         u8 addr2[ETH_ALEN];
 486         u8 addr3[ETH_ALEN];
 487         __le16 seq_ctl;
 488         u8 payload[0];
 489         __le16 qos_ctl;
 490 } __attribute__ ((packed));
 491
 492 struct ieee80211_info_element {
 493         u8 id;
 494         u8 len;
 495         u8 data[0];
 496 } __attribute__ ((packed));
 497
 498 /*
 499  * These are the data types that can make up management packets
 500  *
 501         u16 auth_algorithm;
 502         u16 auth_sequence;
 503         u16 beacon_interval;
 504         u16 capability;
 505         u8 current_ap[ETH_ALEN];
 506         u16 listen_interval;
 507         struct {
 508                 u16 association_id:14, reserved:2;
 509         } __attribute__ ((packed));
 510         u32 time_stamp[2];
 511         u16 reason;
 512         u16 status;
 513 */
 514
 515 struct ieee80211_auth {
 516         struct ieee80211_hdr_3addr header;
 517         __le16 algorithm;
 518         __le16 transaction;
 519         __le16 status;
 520         /* challenge */
 521         struct ieee80211_info_element info_element[0];
 522 } __attribute__ ((packed));
 523
 524 struct ieee80211_channel_switch {
 525         u8 id;
 526         u8 len;
 527         u8 mode;
 528         u8 channel;
 529         u8 count;
 530 } __attribute__ ((packed));
 531
 532 struct ieee80211_action {
 533         struct ieee80211_hdr_3addr header;
 534         u8 category;
 535         u8 action;
 536         union {
 537                 struct ieee80211_action_exchange {
 538                         u8 token;
 539                         struct ieee80211_info_element info_element[0];
 540                 } exchange;
 541                 struct ieee80211_channel_switch channel_switch;
 542
 543         } format;
 544 } __attribute__ ((packed));
 545
 546 struct ieee80211_disassoc {
 547         struct ieee80211_hdr_3addr header;
 548         __le16 reason;
 549 } __attribute__ ((packed));
 550
 551 /* Alias deauth for disassoc */
 552 #define ieee80211_deauth ieee80211_disassoc
 553
 554 struct ieee80211_probe_request {
 555         struct ieee80211_hdr_3addr header;
 556         /* SSID, supported rates */
 557         struct ieee80211_info_element info_element[0];
 558 } __attribute__ ((packed));
 559
 560 struct ieee80211_probe_response {
 561         struct ieee80211_hdr_3addr header;
 562         __le32 time_stamp[2];
 563         __le16 beacon_interval;
 564         __le16 capability;
 565         /* SSID, supported rates, FH params, DS params,
 566          * CF params, IBSS params, TIM (if beacon), RSN */
 567         struct ieee80211_info_element info_element[0];
 568 } __attribute__ ((packed));
 569
 570 /* Alias beacon for probe_response */
 571 #define ieee80211_beacon ieee80211_probe_response
 572
 573 struct ieee80211_assoc_request {
 574         struct ieee80211_hdr_3addr header;
 575         __le16 capability;
 576         __le16 listen_interval;
 577         /* SSID, supported rates, RSN */
 578         struct ieee80211_info_element info_element[0];
 579 } __attribute__ ((packed));
 580
 581 struct ieee80211_reassoc_request {
 582         struct ieee80211_hdr_3addr header;
 583         __le16 capability;
 584         __le16 listen_interval;
 585         u8 current_ap[ETH_ALEN];
 586         struct ieee80211_info_element info_element[0];
 587 } __attribute__ ((packed));
 588
 589 struct ieee80211_assoc_response {
 590         struct ieee80211_hdr_3addr header;
 591         __le16 capability;
 592         __le16 status;
 593         __le16 aid;
 594         /* supported rates */
 595         struct ieee80211_info_element info_element[0];
 596 } __attribute__ ((packed));
 597
 598 struct ieee80211_txb {
 599         u8 nr_frags;
 600         u8 encrypted;
 601         u8 rts_included;
 602         u8 reserved;
 603         u16 frag_size;
 604         u16 payload_size;
 605         struct sk_buff *fragments[0];
 606 };
 607
 608 /* SWEEP TABLE ENTRIES NUMBER */
 609 #define MAX_SWEEP_TAB_ENTRIES             42
 610 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 611 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 612  * only use 8, and then use extended rates for the remaining supported
 613  * rates.  Other APs, however, stick all of their supported rates on the
 614  * main rates information element... */
 615 #define MAX_RATES_LENGTH                  ((u8)12)
 616 #define MAX_RATES_EX_LENGTH               ((u8)16)
 617 #define MAX_NETWORK_COUNT                  128
 618
 619 #define CRC_LENGTH                 4U
 620
 621 #define MAX_WPA_IE_LEN 64
 622
 623 #define NETWORK_HAS_OFDM       (1<<1)
 624 #define NETWORK_HAS_CCK        (1<<2)
 625
 626 /* QoS structure */
 627 #define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
 628 #define NETWORK_HAS_QOS_INFORMATION     (1<<4)
 629 #define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
 630                                          NETWORK_HAS_QOS_INFORMATION)
 631
 632 /* 802.11h */
 633 #define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
 634 #define NETWORK_HAS_CSA                 (1<<6)
 635 #define NETWORK_HAS_QUIET               (1<<7)
 636 #define NETWORK_HAS_IBSS_DFS            (1<<8)
 637 #define NETWORK_HAS_TPC_REPORT          (1<<9)
 638
 639 #define NETWORK_HAS_ERP_VALUE           (1<<10)
 640
 641 #define QOS_QUEUE_NUM                   4
 642 #define QOS_OUI_LEN                     3
 643 #define QOS_OUI_TYPE                    2
 644 #define QOS_ELEMENT_ID                  221
 645 #define QOS_OUI_INFO_SUB_TYPE           0
 646 #define QOS_OUI_PARAM_SUB_TYPE          1
 647 #define QOS_VERSION_1                   1
 648 #define QOS_AIFSN_MIN_VALUE             2
 649
 650 struct ieee80211_qos_information_element {
 651         u8 elementID;
 652         u8 length;
 653         u8 qui[QOS_OUI_LEN];
 654         u8 qui_type;
 655         u8 qui_subtype;
 656         u8 version;
 657         u8 ac_info;
 658 } __attribute__ ((packed));
 659
 660 struct ieee80211_qos_ac_parameter {
 661         u8 aci_aifsn;
 662         u8 ecw_min_max;
 663         __le16 tx_op_limit;
 664 } __attribute__ ((packed));
 665
 666 struct ieee80211_qos_parameter_info {
 667         struct ieee80211_qos_information_element info_element;
 668         u8 reserved;
 669         struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
 670 } __attribute__ ((packed));
 671
 672 struct ieee80211_qos_parameters {
 673         __le16 cw_min[QOS_QUEUE_NUM];
 674         __le16 cw_max[QOS_QUEUE_NUM];
 675         u8 aifs[QOS_QUEUE_NUM];
 676         u8 flag[QOS_QUEUE_NUM];
 677         __le16 tx_op_limit[QOS_QUEUE_NUM];
 678 } __attribute__ ((packed));
 679
 680 struct ieee80211_qos_data {
 681         struct ieee80211_qos_parameters parameters;
 682         int active;
 683         int supported;
 684         u8 param_count;
 685         u8 old_param_count;
 686 };
 687
 688 struct ieee80211_tim_parameters {
 689         u8 tim_count;
 690         u8 tim_period;
 691 } __attribute__ ((packed));
 692
 693 /*******************************************************/
 694
 695 enum {                          /* ieee80211_basic_report.map */
 696         IEEE80211_BASIC_MAP_BSS = (1 << 0),
 697         IEEE80211_BASIC_MAP_OFDM = (1 << 1),
 698         IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
 699         IEEE80211_BASIC_MAP_RADAR = (1 << 3),
 700         IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
 701         /* Bits 5-7 are reserved */
 702
 703 };
 704 struct ieee80211_basic_report {
 705         u8 channel;
 706         __le64 start_time;
 707         __le16 duration;
 708         u8 map;
 709 } __attribute__ ((packed));
 710
 711 enum {                          /* ieee80211_measurement_request.mode */
 712         /* Bit 0 is reserved */
 713         IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
 714         IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
 715         IEEE80211_MEASUREMENT_REPORT = (1 << 3),
 716         /* Bits 4-7 are reserved */
 717 };
 718
 719 enum {
 720         IEEE80211_REPORT_BASIC = 0,     /* required */
 721         IEEE80211_REPORT_CCA = 1,       /* optional */
 722         IEEE80211_REPORT_RPI = 2,       /* optional */
 723         /* 3-255 reserved */
 724 };
 725
 726 struct ieee80211_measurement_params {
 727         u8 channel;
 728         __le64 start_time;
 729         __le16 duration;
 730 } __attribute__ ((packed));
 731
 732 struct ieee80211_measurement_request {
 733         struct ieee80211_info_element ie;
 734         u8 token;
 735         u8 mode;
 736         u8 type;
 737         struct ieee80211_measurement_params params[0];
 738 } __attribute__ ((packed));
 739
 740 struct ieee80211_measurement_report {
 741         struct ieee80211_info_element ie;
 742         u8 token;
 743         u8 mode;
 744         u8 type;
 745         union {
 746                 struct ieee80211_basic_report basic[0];
 747         } u;
 748 } __attribute__ ((packed));
 749
 750 struct ieee80211_tpc_report {
 751         u8 transmit_power;
 752         u8 link_margin;
 753 } __attribute__ ((packed));
 754
 755 struct ieee80211_channel_map {
 756         u8 channel;
 757         u8 map;
 758 } __attribute__ ((packed));
 759
 760 struct ieee80211_ibss_dfs {
 761         struct ieee80211_info_element ie;
 762         u8 owner[ETH_ALEN];
 763         u8 recovery_interval;
 764         struct ieee80211_channel_map channel_map[0];
 765 };
 766
 767 struct ieee80211_csa {
 768         u8 mode;
 769         u8 channel;
 770         u8 count;
 771 } __attribute__ ((packed));
 772
 773 struct ieee80211_quiet {
 774         u8 count;
 775         u8 period;
 776         u8 duration;
 777         u8 offset;
 778 } __attribute__ ((packed));
 779
 780 struct ieee80211_network {
 781         /* These entries are used to identify a unique network */
 782         u8 bssid[ETH_ALEN];
 783         u8 channel;
 784         /* Ensure null-terminated for any debug msgs */
 785         u8 ssid[IW_ESSID_MAX_SIZE + 1];
 786         u8 ssid_len;
 787
 788         struct ieee80211_qos_data qos_data;
 789
 790         /* These are network statistics */
 791         struct ieee80211_rx_stats stats;
 792         u16 capability;
 793         u8 rates[MAX_RATES_LENGTH];
 794         u8 rates_len;
 795         u8 rates_ex[MAX_RATES_EX_LENGTH];
 796         u8 rates_ex_len;
 797         unsigned long last_scanned;
 798         u8 mode;
 799         u32 flags;
 800         u32 last_associate;
 801         u32 time_stamp[2];
 802         u16 beacon_interval;
 803         u16 listen_interval;
 804         u16 atim_window;
 805         u8 erp_value;
 806         u8 wpa_ie[MAX_WPA_IE_LEN];
 807         size_t wpa_ie_len;
 808         u8 rsn_ie[MAX_WPA_IE_LEN];
 809         size_t rsn_ie_len;
 810         struct ieee80211_tim_parameters tim;
 811
 812         /* 802.11h info */
 813
 814         /* Power Constraint - mandatory if spctrm mgmt required */
 815         u8 power_constraint;
 816
 817         /* TPC Report - mandatory if spctrm mgmt required */
 818         struct ieee80211_tpc_report tpc_report;
 819
 820         /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
 821          * NOTE: This is variable length and so must be allocated dynamically */
 822         struct ieee80211_ibss_dfs *ibss_dfs;
 823
 824         /* Channel Switch Announcement - optional if spctrm mgmt required */
 825         struct ieee80211_csa csa;
 826
 827         /* Quiet - optional if spctrm mgmt required */
 828         struct ieee80211_quiet quiet;
 829
 830         struct list_head list;
 831 };
 832
 833 enum ieee80211_state {
 834         IEEE80211_UNINITIALIZED = 0,
 835         IEEE80211_INITIALIZED,
 836         IEEE80211_ASSOCIATING,
 837         IEEE80211_ASSOCIATED,
 838         IEEE80211_AUTHENTICATING,
 839         IEEE80211_AUTHENTICATED,
 840         IEEE80211_SHUTDOWN
 841 };
 842
 843 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 844 #define DEFAULT_FTS 2346
 845
 846 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
 847 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
 848 #define CFG_IEEE80211_RTS (1<<2)
 849
 850 #define IEEE80211_24GHZ_MIN_CHANNEL 1
 851 #define IEEE80211_24GHZ_MAX_CHANNEL 14
 852 #define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
 853                                   IEEE80211_24GHZ_MIN_CHANNEL + 1)
 854
 855 #define IEEE80211_52GHZ_MIN_CHANNEL 34
 856 #define IEEE80211_52GHZ_MAX_CHANNEL 165
 857 #define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
 858                                   IEEE80211_52GHZ_MIN_CHANNEL + 1)
 859
 860 enum {
 861         IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
 862         IEEE80211_CH_80211H_RULES = (1 << 1),
 863         IEEE80211_CH_B_ONLY = (1 << 2),
 864         IEEE80211_CH_NO_IBSS = (1 << 3),
 865         IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
 866         IEEE80211_CH_RADAR_DETECT = (1 << 5),
 867         IEEE80211_CH_INVALID = (1 << 6),
 868 };
 869
 870 struct ieee80211_channel {
 871         u32 freq;       /* in MHz */
 872         u8 channel;
 873         u8 flags;
 874         u8 max_power;   /* in dBm */
 875 };
 876
 877 struct ieee80211_geo {
 878         u8 name[4];
 879         u8 bg_channels;
 880         u8 a_channels;
 881         struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
 882         struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
 883 };
 884
 885 struct ieee80211_device {
 886         struct net_device *dev;
 887         struct ieee80211_security sec;
 888
 889         /* Bookkeeping structures */
 890         struct net_device_stats stats;
 891         struct ieee80211_stats ieee_stats;
 892
 893         struct ieee80211_geo geo;
 894
 895         /* Probe / Beacon management */
 896         struct list_head network_free_list;
 897         struct list_head network_list;
 898         struct ieee80211_network *networks;
 899         int scans;
 900         int scan_age;
 901
 902         int iw_mode;            /* operating mode (IW_MODE_*) */
 903         struct iw_spy_data spy_data;    /* iwspy support */
 904
 905         spinlock_t lock;
 906
 907         int tx_headroom;        /* Set to size of any additional room needed at front
 908                                  * of allocated Tx SKBs */
 909         u32 config;
 910
 911         /* WEP and other encryption related settings at the device level */
 912         int open_wep;           /* Set to 1 to allow unencrypted frames */
 913
 914         int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
 915                                  * WEP key changes */
 916
 917         /* If the host performs {en,de}cryption, then set to 1 */
 918         int host_encrypt;
 919         int host_encrypt_msdu;
 920         int host_decrypt;
 921         /* host performs multicast decryption */
 922         int host_mc_decrypt;
 923
 924         /* host should strip IV and ICV from protected frames */
 925         /* meaningful only when hardware decryption is being used */
 926         int host_strip_iv_icv;
 927
 928         int host_open_frag;
 929         int host_build_iv;
 930         int ieee802_1x;         /* is IEEE 802.1X used */
 931
 932         /* WPA data */
 933         int wpa_enabled;
 934         int drop_unencrypted;
 935         int privacy_invoked;
 936         size_t wpa_ie_len;
 937         u8 *wpa_ie;
 938
 939         struct lib80211_crypt_info crypt_info;
 940
 941         int bcrx_sta_key;       /* use individual keys to override default keys even
 942                                  * with RX of broad/multicast frames */
 943
 944         /* Fragmentation structures */
 945         struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
 946         unsigned int frag_next_idx;
 947         u16 fts;                /* Fragmentation Threshold */
 948         u16 rts;                /* RTS threshold */
 949
 950         /* Association info */
 951         u8 bssid[ETH_ALEN];
 952
 953         enum ieee80211_state state;
 954
 955         int mode;               /* A, B, G */
 956         int modulation;         /* CCK, OFDM */
 957         int freq_band;          /* 2.4Ghz, 5.2Ghz, Mixed */
 958         int abg_true;           /* ABG flag              */
 959
 960         int perfect_rssi;
 961         int worst_rssi;
 962
 963         u16 prev_seq_ctl;       /* used to drop duplicate frames */
 964
 965         /* Callback functions */
 966         void (*set_security) (struct net_device * dev,
 967                               struct ieee80211_security * sec);
 968         int (*hard_start_xmit) (struct ieee80211_txb * txb,
 969                                 struct net_device * dev, int pri);
 970         int (*reset_port) (struct net_device * dev);
 971         int (*is_queue_full) (struct net_device * dev, int pri);
 972
 973         int (*handle_management) (struct net_device * dev,
 974                                   struct ieee80211_network * network, u16 type);
 975         int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
 976
 977         /* Typical STA methods */
 978         int (*handle_auth) (struct net_device * dev,
 979                             struct ieee80211_auth * auth);
 980         int (*handle_deauth) (struct net_device * dev,
 981                               struct ieee80211_deauth * auth);
 982         int (*handle_action) (struct net_device * dev,
 983                               struct ieee80211_action * action,
 984                               struct ieee80211_rx_stats * stats);
 985         int (*handle_disassoc) (struct net_device * dev,
 986                                 struct ieee80211_disassoc * assoc);
 987         int (*handle_beacon) (struct net_device * dev,
 988                               struct ieee80211_beacon * beacon,
 989                               struct ieee80211_network * network);
 990         int (*handle_probe_response) (struct net_device * dev,
 991                                       struct ieee80211_probe_response * resp,
 992                                       struct ieee80211_network * network);
 993         int (*handle_probe_request) (struct net_device * dev,
 994                                      struct ieee80211_probe_request * req,
 995                                      struct ieee80211_rx_stats * stats);
 996         int (*handle_assoc_response) (struct net_device * dev,
 997                                       struct ieee80211_assoc_response * resp,
 998                                       struct ieee80211_network * network);
 999
1000         /* Typical AP methods */
1001         int (*handle_assoc_request) (struct net_device * dev);
1002         int (*handle_reassoc_request) (struct net_device * dev,
1003                                        struct ieee80211_reassoc_request * req);
1004
1005         /* This must be the last item so that it points to the data
1006          * allocated beyond this structure by alloc_ieee80211 */
1007         u8 priv[0];
1008 };
1009
1010 #define IEEE_A            (1<<0)
1011 #define IEEE_B            (1<<1)
1012 #define IEEE_G            (1<<2)
1013 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
1014
1015 static inline void *ieee80211_priv(struct net_device *dev)
1016 {
1017         return ((struct ieee80211_device *)netdev_priv(dev))->priv;
1018 }
1019
1020 static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
1021                                           int mode)
1022 {
1023         /*
1024          * It is possible for both access points and our device to support
1025          * combinations of modes, so as long as there is one valid combination
1026          * of ap/device supported modes, then return success
1027          *
1028          */
1029         if ((mode & IEEE_A) &&
1030             (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1031             (ieee->freq_band & IEEE80211_52GHZ_BAND))
1032                 return 1;
1033
1034         if ((mode & IEEE_G) &&
1035             (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1036             (ieee->freq_band & IEEE80211_24GHZ_BAND))
1037                 return 1;
1038
1039         if ((mode & IEEE_B) &&
1040             (ieee->modulation & IEEE80211_CCK_MODULATION) &&
1041             (ieee->freq_band & IEEE80211_24GHZ_BAND))
1042                 return 1;
1043
1044         return 0;
1045 }
1046
1047 static inline int ieee80211_get_hdrlen(u16 fc)
1048 {
1049         int hdrlen = IEEE80211_3ADDR_LEN;
1050         u16 stype = WLAN_FC_GET_STYPE(fc);
1051
1052         switch (WLAN_FC_GET_TYPE(fc)) {
1053         case IEEE80211_FTYPE_DATA:
1054                 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
1055                         hdrlen = IEEE80211_4ADDR_LEN;
1056                 if (stype & IEEE80211_STYPE_QOS_DATA)
1057                         hdrlen += 2;
1058                 break;
1059         case IEEE80211_FTYPE_CTL:
1060                 switch (WLAN_FC_GET_STYPE(fc)) {
1061                 case IEEE80211_STYPE_CTS:
1062                 case IEEE80211_STYPE_ACK:
1063                         hdrlen = IEEE80211_1ADDR_LEN;
1064                         break;
1065                 default:
1066                         hdrlen = IEEE80211_2ADDR_LEN;
1067                         break;
1068                 }
1069                 break;
1070         }
1071
1072         return hdrlen;
1073 }
1074
1075 static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
1076 {
1077         switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
1078         case IEEE80211_1ADDR_LEN:
1079                 return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1080         case IEEE80211_2ADDR_LEN:
1081                 return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1082         case IEEE80211_3ADDR_LEN:
1083                 return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1084         case IEEE80211_4ADDR_LEN:
1085                 return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1086         }
1087         return NULL;
1088 }
1089
1090 static inline int ieee80211_is_ofdm_rate(u8 rate)
1091 {
1092         switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1093         case IEEE80211_OFDM_RATE_6MB:
1094         case IEEE80211_OFDM_RATE_9MB:
1095         case IEEE80211_OFDM_RATE_12MB:
1096         case IEEE80211_OFDM_RATE_18MB:
1097         case IEEE80211_OFDM_RATE_24MB:
1098         case IEEE80211_OFDM_RATE_36MB:
1099         case IEEE80211_OFDM_RATE_48MB:
1100         case IEEE80211_OFDM_RATE_54MB:
1101                 return 1;
1102         }
1103         return 0;
1104 }
1105
1106 static inline int ieee80211_is_cck_rate(u8 rate)
1107 {
1108         switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1109         case IEEE80211_CCK_RATE_1MB:
1110         case IEEE80211_CCK_RATE_2MB:
1111         case IEEE80211_CCK_RATE_5MB:
1112         case IEEE80211_CCK_RATE_11MB:
1113                 return 1;
1114         }
1115         return 0;
1116 }
1117
1118 /* ieee80211.c */
1119 extern void free_ieee80211(struct net_device *dev);
1120 extern struct net_device *alloc_ieee80211(int sizeof_priv);
1121
1122 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1123
1124 /* ieee80211_tx.c */
1125 extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
1126 extern void ieee80211_txb_free(struct ieee80211_txb *);
1127
1128 /* ieee80211_rx.c */
1129 extern void ieee80211_rx_any(struct ieee80211_device *ieee,
1130                      struct sk_buff *skb, struct ieee80211_rx_stats *stats);
1131 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1132                         struct ieee80211_rx_stats *rx_stats);
1133 /* make sure to set stats->len */
1134 extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1135                              struct ieee80211_hdr_4addr *header,
1136                              struct ieee80211_rx_stats *stats);
1137 extern void ieee80211_network_reset(struct ieee80211_network *network);
1138
1139 /* ieee80211_geo.c */
1140 extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1141                                                      *ieee);
1142 extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1143                              const struct ieee80211_geo *geo);
1144
1145 extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1146                                       u8 channel);
1147 extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1148                                       u8 channel);
1149 extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1150 extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
1151                                       u8 channel);
1152 extern const struct ieee80211_channel *ieee80211_get_channel(struct
1153                                                              ieee80211_device
1154                                                              *ieee, u8 channel);
1155 extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
1156                                       u8 channel);
1157
1158 /* ieee80211_wx.c */
1159 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1160                                  struct iw_request_info *info,
1161                                  union iwreq_data *wrqu, char *key);
1162 extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1163                                    struct iw_request_info *info,
1164                                    union iwreq_data *wrqu, char *key);
1165 extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1166                                    struct iw_request_info *info,
1167                                    union iwreq_data *wrqu, char *key);
1168 extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1169                                       struct iw_request_info *info,
1170                                       union iwreq_data *wrqu, char *extra);
1171 extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1172                                       struct iw_request_info *info,
1173                                       union iwreq_data *wrqu, char *extra);
1174
1175 static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
1176 {
1177         ieee->scans++;
1178 }
1179
1180 static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
1181 {
1182         return ieee->scans;
1183 }
1184
1185 #endif                          /* IEEE80211_H */