release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/net/wireless/ipw2x00/libipw.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, libipw_geo APIs,
  24  *          various structure changes, and crypto API init method
  25  */
  26 #ifndef LIBIPW_H
  27 #define LIBIPW_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 #include <net/cfg80211.h>
  35
  36 #define LIBIPW_VERSION "git-1.1.13"
  37
  38 #define LIBIPW_DATA_LEN         2304
  39 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
  40    6.2.1.1.2.
  41
  42    The figure in section 7.1.2 suggests a body size of up to 2312
  43    bytes is allowed, which is a bit confusing, I suspect this
  44    represents the 2304 bytes of real data, plus a possible 8 bytes of
  45    WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
  46
  47 #define LIBIPW_1ADDR_LEN 10
  48 #define LIBIPW_2ADDR_LEN 16
  49 #define LIBIPW_3ADDR_LEN 24
  50 #define LIBIPW_4ADDR_LEN 30
  51 #define LIBIPW_FCS_LEN    4
  52 #define LIBIPW_HLEN                     (LIBIPW_4ADDR_LEN)
  53 #define LIBIPW_FRAME_LEN                (LIBIPW_DATA_LEN + LIBIPW_HLEN)
  54
  55 #define MIN_FRAG_THRESHOLD     256U
  56 #define MAX_FRAG_THRESHOLD     2346U
  57
  58 /* QOS control */
  59 #define LIBIPW_QCTL_TID         0x000F
  60
  61 /* debug macros */
  62
  63 #ifdef CONFIG_LIBIPW_DEBUG
  64 extern u32 libipw_debug_level;
  65 #define LIBIPW_DEBUG(level, fmt, args...) \
  66 do { if (libipw_debug_level & (level)) \
  67   printk(KERN_DEBUG "libipw: %c %s " fmt, \
  68          in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
  69 static inline bool libipw_ratelimit_debug(u32 level)
  70 {
  71         return (libipw_debug_level & level) && net_ratelimit();
  72 }
  73 #else
  74 #define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
  75 static inline bool libipw_ratelimit_debug(u32 level)
  76 {
  77         return false;
  78 }
  79 #endif                          /* CONFIG_LIBIPW_DEBUG */
  80
  81
  82 #define LIBIPW_DL_INFO          (1<<0)
  83 #define LIBIPW_DL_WX            (1<<1)
  84 #define LIBIPW_DL_SCAN          (1<<2)
  85 #define LIBIPW_DL_STATE         (1<<3)
  86 #define LIBIPW_DL_MGMT          (1<<4)
  87 #define LIBIPW_DL_FRAG          (1<<5)
  88 #define LIBIPW_DL_DROP          (1<<7)
  89
  90 #define LIBIPW_DL_TX            (1<<8)
  91 #define LIBIPW_DL_RX            (1<<9)
  92 #define LIBIPW_DL_QOS           (1<<31)
  93
  94 #define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
  95 #define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
  96 #define LIBIPW_DEBUG_INFO(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
  97
  98 #define LIBIPW_DEBUG_WX(f, a...)     LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
  99 #define LIBIPW_DEBUG_SCAN(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
 100 #define LIBIPW_DEBUG_STATE(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
 101 #define LIBIPW_DEBUG_MGMT(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
 102 #define LIBIPW_DEBUG_FRAG(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
 103 #define LIBIPW_DEBUG_DROP(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
 104 #define LIBIPW_DEBUG_TX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
 105 #define LIBIPW_DEBUG_RX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
 106 #define LIBIPW_DEBUG_QOS(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
 107 #include <linux/netdevice.h>
 108 #include <linux/if_arp.h>       /* ARPHRD_ETHER */
 109
 110 #ifndef WIRELESS_SPY
 111 #define WIRELESS_SPY            /* enable iwspy support */
 112 #endif
 113 #include <net/iw_handler.h>     /* new driver API */
 114
 115 #define ETH_P_PREAUTH 0x88C7    /* IEEE 802.11i pre-authentication */
 116
 117 #ifndef ETH_P_80211_RAW
 118 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 119 #endif
 120
 121 /* IEEE 802.11 defines */
 122
 123 #define P80211_OUI_LEN 3
 124
 125 struct libipw_snap_hdr {
 126
 127         u8 dsap;                /* always 0xAA */
 128         u8 ssap;                /* always 0xAA */
 129         u8 ctrl;                /* always 0x03 */
 130         u8 oui[P80211_OUI_LEN]; /* organizational universal id */
 131
 132 } __packed;
 133
 134 #define SNAP_SIZE sizeof(struct libipw_snap_hdr)
 135
 136 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
 137 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
 138 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
 139
 140 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
 141 #define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 142
 143 #define LIBIPW_STATMASK_SIGNAL (1<<0)
 144 #define LIBIPW_STATMASK_RSSI (1<<1)
 145 #define LIBIPW_STATMASK_NOISE (1<<2)
 146 #define LIBIPW_STATMASK_RATE (1<<3)
 147 #define LIBIPW_STATMASK_WEMASK 0x7
 148
 149 #define LIBIPW_CCK_MODULATION    (1<<0)
 150 #define LIBIPW_OFDM_MODULATION   (1<<1)
 151
 152 #define LIBIPW_24GHZ_BAND     (1<<0)
 153 #define LIBIPW_52GHZ_BAND     (1<<1)
 154
 155 #define LIBIPW_CCK_RATE_1MB                     0x02
 156 #define LIBIPW_CCK_RATE_2MB                     0x04
 157 #define LIBIPW_CCK_RATE_5MB                     0x0B
 158 #define LIBIPW_CCK_RATE_11MB                    0x16
 159 #define LIBIPW_OFDM_RATE_6MB                    0x0C
 160 #define LIBIPW_OFDM_RATE_9MB                    0x12
 161 #define LIBIPW_OFDM_RATE_12MB           0x18
 162 #define LIBIPW_OFDM_RATE_18MB           0x24
 163 #define LIBIPW_OFDM_RATE_24MB           0x30
 164 #define LIBIPW_OFDM_RATE_36MB           0x48
 165 #define LIBIPW_OFDM_RATE_48MB           0x60
 166 #define LIBIPW_OFDM_RATE_54MB           0x6C
 167 #define LIBIPW_BASIC_RATE_MASK          0x80
 168
 169 #define LIBIPW_CCK_RATE_1MB_MASK                (1<<0)
 170 #define LIBIPW_CCK_RATE_2MB_MASK                (1<<1)
 171 #define LIBIPW_CCK_RATE_5MB_MASK                (1<<2)
 172 #define LIBIPW_CCK_RATE_11MB_MASK               (1<<3)
 173 #define LIBIPW_OFDM_RATE_6MB_MASK               (1<<4)
 174 #define LIBIPW_OFDM_RATE_9MB_MASK               (1<<5)
 175 #define LIBIPW_OFDM_RATE_12MB_MASK              (1<<6)
 176 #define LIBIPW_OFDM_RATE_18MB_MASK              (1<<7)
 177 #define LIBIPW_OFDM_RATE_24MB_MASK              (1<<8)
 178 #define LIBIPW_OFDM_RATE_36MB_MASK              (1<<9)
 179 #define LIBIPW_OFDM_RATE_48MB_MASK              (1<<10)
 180 #define LIBIPW_OFDM_RATE_54MB_MASK              (1<<11)
 181
 182 #define LIBIPW_CCK_RATES_MASK           0x0000000F
 183 #define LIBIPW_CCK_BASIC_RATES_MASK     (LIBIPW_CCK_RATE_1MB_MASK | \
 184         LIBIPW_CCK_RATE_2MB_MASK)
 185 #define LIBIPW_CCK_DEFAULT_RATES_MASK   (LIBIPW_CCK_BASIC_RATES_MASK | \
 186         LIBIPW_CCK_RATE_5MB_MASK | \
 187         LIBIPW_CCK_RATE_11MB_MASK)
 188
 189 #define LIBIPW_OFDM_RATES_MASK          0x00000FF0
 190 #define LIBIPW_OFDM_BASIC_RATES_MASK    (LIBIPW_OFDM_RATE_6MB_MASK | \
 191         LIBIPW_OFDM_RATE_12MB_MASK | \
 192         LIBIPW_OFDM_RATE_24MB_MASK)
 193 #define LIBIPW_OFDM_DEFAULT_RATES_MASK  (LIBIPW_OFDM_BASIC_RATES_MASK | \
 194         LIBIPW_OFDM_RATE_9MB_MASK  | \
 195         LIBIPW_OFDM_RATE_18MB_MASK | \
 196         LIBIPW_OFDM_RATE_36MB_MASK | \
 197         LIBIPW_OFDM_RATE_48MB_MASK | \
 198         LIBIPW_OFDM_RATE_54MB_MASK)
 199 #define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
 200                                 LIBIPW_CCK_DEFAULT_RATES_MASK)
 201
 202 #define LIBIPW_NUM_OFDM_RATES       8
 203 #define LIBIPW_NUM_CCK_RATES                4
 204 #define LIBIPW_OFDM_SHIFT_MASK_A         4
 205
 206 /* NOTE: This data is for statistical purposes; not all hardware provides this
 207  *       information for frames received.
 208  *       For libipw_rx_mgt, you need to set at least the 'len' parameter.
 209  */
 210 struct libipw_rx_stats {
 211         u32 mac_time;
 212         s8 rssi;
 213         u8 signal;
 214         u8 noise;
 215         u16 rate;               /* in 100 kbps */
 216         u8 received_channel;
 217         u8 control;
 218         u8 mask;
 219         u8 freq;
 220         u16 len;
 221         u64 tsf;
 222         u32 beacon_time;
 223 };
 224
 225 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 226  * three fragmented frames. This define can be increased to support more
 227  * concurrent frames, but it should be noted that each entry can consume about
 228  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 229 #define LIBIPW_FRAG_CACHE_LEN 4
 230
 231 struct libipw_frag_entry {
 232         unsigned long first_frag_time;
 233         unsigned int seq;
 234         unsigned int last_frag;
 235         struct sk_buff *skb;
 236         u8 src_addr[ETH_ALEN];
 237         u8 dst_addr[ETH_ALEN];
 238 };
 239
 240 struct libipw_stats {
 241         unsigned int tx_unicast_frames;
 242         unsigned int tx_multicast_frames;
 243         unsigned int tx_fragments;
 244         unsigned int tx_unicast_octets;
 245         unsigned int tx_multicast_octets;
 246         unsigned int tx_deferred_transmissions;
 247         unsigned int tx_single_retry_frames;
 248         unsigned int tx_multiple_retry_frames;
 249         unsigned int tx_retry_limit_exceeded;
 250         unsigned int tx_discards;
 251         unsigned int rx_unicast_frames;
 252         unsigned int rx_multicast_frames;
 253         unsigned int rx_fragments;
 254         unsigned int rx_unicast_octets;
 255         unsigned int rx_multicast_octets;
 256         unsigned int rx_fcs_errors;
 257         unsigned int rx_discards_no_buffer;
 258         unsigned int tx_discards_wrong_sa;
 259         unsigned int rx_discards_undecryptable;
 260         unsigned int rx_message_in_msg_fragments;
 261         unsigned int rx_message_in_bad_msg_fragments;
 262 };
 263
 264 struct libipw_device;
 265
 266 #define SEC_KEY_1               (1<<0)
 267 #define SEC_KEY_2               (1<<1)
 268 #define SEC_KEY_3               (1<<2)
 269 #define SEC_KEY_4               (1<<3)
 270 #define SEC_ACTIVE_KEY          (1<<4)
 271 #define SEC_AUTH_MODE           (1<<5)
 272 #define SEC_UNICAST_GROUP       (1<<6)
 273 #define SEC_LEVEL               (1<<7)
 274 #define SEC_ENABLED             (1<<8)
 275 #define SEC_ENCRYPT             (1<<9)
 276
 277 #define SEC_LEVEL_0             0       /* None */
 278 #define SEC_LEVEL_1             1       /* WEP 40 and 104 bit */
 279 #define SEC_LEVEL_2             2       /* Level 1 + TKIP */
 280 #define SEC_LEVEL_2_CKIP        3       /* Level 1 + CKIP */
 281 #define SEC_LEVEL_3             4       /* Level 2 + CCMP */
 282
 283 #define SEC_ALG_NONE            0
 284 #define SEC_ALG_WEP             1
 285 #define SEC_ALG_TKIP            2
 286 #define SEC_ALG_CCMP            3
 287
 288 #define WEP_KEYS                4
 289 #define WEP_KEY_LEN             13
 290 #define SCM_KEY_LEN             32
 291 #define SCM_TEMPORAL_KEY_LENGTH 16
 292
 293 struct libipw_security {
 294         u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
 295         u8 auth_mode;
 296         u8 encode_alg[WEP_KEYS];
 297         u8 key_sizes[WEP_KEYS];
 298         u8 keys[WEP_KEYS][SCM_KEY_LEN];
 299         u8 level;
 300         u16 flags;
 301 } __packed;
 302
 303 /*
 304
 305  802.11 data frame from AP
 306
 307       ,-------------------------------------------------------------------.
 308 Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
 309       |------|------|---------|---------|---------|------|---------|------|
 310 Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
 311       |      | tion | (BSSID) |         |         | ence |  data   |      |
 312       `-------------------------------------------------------------------'
 313
 314 Total: 28-2340 bytes
 315
 316 */
 317
 318 #define BEACON_PROBE_SSID_ID_POSITION 12
 319
 320 struct libipw_hdr_1addr {
 321         __le16 frame_ctl;
 322         __le16 duration_id;
 323         u8 addr1[ETH_ALEN];
 324         u8 payload[0];
 325 } __packed;
 326
 327 struct libipw_hdr_2addr {
 328         __le16 frame_ctl;
 329         __le16 duration_id;
 330         u8 addr1[ETH_ALEN];
 331         u8 addr2[ETH_ALEN];
 332         u8 payload[0];
 333 } __packed;
 334
 335 struct libipw_hdr_3addr {
 336         __le16 frame_ctl;
 337         __le16 duration_id;
 338         u8 addr1[ETH_ALEN];
 339         u8 addr2[ETH_ALEN];
 340         u8 addr3[ETH_ALEN];
 341         __le16 seq_ctl;
 342         u8 payload[0];
 343 } __packed;
 344
 345 struct libipw_hdr_4addr {
 346         __le16 frame_ctl;
 347         __le16 duration_id;
 348         u8 addr1[ETH_ALEN];
 349         u8 addr2[ETH_ALEN];
 350         u8 addr3[ETH_ALEN];
 351         __le16 seq_ctl;
 352         u8 addr4[ETH_ALEN];
 353         u8 payload[0];
 354 } __packed;
 355
 356 struct libipw_hdr_3addrqos {
 357         __le16 frame_ctl;
 358         __le16 duration_id;
 359         u8 addr1[ETH_ALEN];
 360         u8 addr2[ETH_ALEN];
 361         u8 addr3[ETH_ALEN];
 362         __le16 seq_ctl;
 363         u8 payload[0];
 364         __le16 qos_ctl;
 365 } __packed;
 366
 367 struct libipw_info_element {
 368         u8 id;
 369         u8 len;
 370         u8 data[0];
 371 } __packed;
 372
 373 /*
 374  * These are the data types that can make up management packets
 375  *
 376         u16 auth_algorithm;
 377         u16 auth_sequence;
 378         u16 beacon_interval;
 379         u16 capability;
 380         u8 current_ap[ETH_ALEN];
 381         u16 listen_interval;
 382         struct {
 383                 u16 association_id:14, reserved:2;
 384         } __packed;
 385         u32 time_stamp[2];
 386         u16 reason;
 387         u16 status;
 388 */
 389
 390 struct libipw_auth {
 391         struct libipw_hdr_3addr header;
 392         __le16 algorithm;
 393         __le16 transaction;
 394         __le16 status;
 395         /* challenge */
 396         struct libipw_info_element info_element[0];
 397 } __packed;
 398
 399 struct libipw_channel_switch {
 400         u8 id;
 401         u8 len;
 402         u8 mode;
 403         u8 channel;
 404         u8 count;
 405 } __packed;
 406
 407 struct libipw_action {
 408         struct libipw_hdr_3addr header;
 409         u8 category;
 410         u8 action;
 411         union {
 412                 struct libipw_action_exchange {
 413                         u8 token;
 414                         struct libipw_info_element info_element[0];
 415                 } exchange;
 416                 struct libipw_channel_switch channel_switch;
 417
 418         } format;
 419 } __packed;
 420
 421 struct libipw_disassoc {
 422         struct libipw_hdr_3addr header;
 423         __le16 reason;
 424 } __packed;
 425
 426 /* Alias deauth for disassoc */
 427 #define libipw_deauth libipw_disassoc
 428
 429 struct libipw_probe_request {
 430         struct libipw_hdr_3addr header;
 431         /* SSID, supported rates */
 432         struct libipw_info_element info_element[0];
 433 } __packed;
 434
 435 struct libipw_probe_response {
 436         struct libipw_hdr_3addr header;
 437         __le32 time_stamp[2];
 438         __le16 beacon_interval;
 439         __le16 capability;
 440         /* SSID, supported rates, FH params, DS params,
 441          * CF params, IBSS params, TIM (if beacon), RSN */
 442         struct libipw_info_element info_element[0];
 443 } __packed;
 444
 445 /* Alias beacon for probe_response */
 446 #define libipw_beacon libipw_probe_response
 447
 448 struct libipw_assoc_request {
 449         struct libipw_hdr_3addr header;
 450         __le16 capability;
 451         __le16 listen_interval;
 452         /* SSID, supported rates, RSN */
 453         struct libipw_info_element info_element[0];
 454 } __packed;
 455
 456 struct libipw_reassoc_request {
 457         struct libipw_hdr_3addr header;
 458         __le16 capability;
 459         __le16 listen_interval;
 460         u8 current_ap[ETH_ALEN];
 461         struct libipw_info_element info_element[0];
 462 } __packed;
 463
 464 struct libipw_assoc_response {
 465         struct libipw_hdr_3addr header;
 466         __le16 capability;
 467         __le16 status;
 468         __le16 aid;
 469         /* supported rates */
 470         struct libipw_info_element info_element[0];
 471 } __packed;
 472
 473 struct libipw_txb {
 474         u8 nr_frags;
 475         u8 encrypted;
 476         u8 rts_included;
 477         u8 reserved;
 478         u16 frag_size;
 479         u16 payload_size;
 480         struct sk_buff *fragments[0];
 481 };
 482
 483 /* SWEEP TABLE ENTRIES NUMBER */
 484 #define MAX_SWEEP_TAB_ENTRIES             42
 485 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 486 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 487  * only use 8, and then use extended rates for the remaining supported
 488  * rates.  Other APs, however, stick all of their supported rates on the
 489  * main rates information element... */
 490 #define MAX_RATES_LENGTH                  ((u8)12)
 491 #define MAX_RATES_EX_LENGTH               ((u8)16)
 492 #define MAX_NETWORK_COUNT                  128
 493
 494 #define CRC_LENGTH                 4U
 495
 496 #define MAX_WPA_IE_LEN 64
 497
 498 #define NETWORK_HAS_OFDM       (1<<1)
 499 #define NETWORK_HAS_CCK        (1<<2)
 500
 501 /* QoS structure */
 502 #define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
 503 #define NETWORK_HAS_QOS_INFORMATION     (1<<4)
 504 #define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
 505                                          NETWORK_HAS_QOS_INFORMATION)
 506
 507 /* 802.11h */
 508 #define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
 509 #define NETWORK_HAS_CSA                 (1<<6)
 510 #define NETWORK_HAS_QUIET               (1<<7)
 511 #define NETWORK_HAS_IBSS_DFS            (1<<8)
 512 #define NETWORK_HAS_TPC_REPORT          (1<<9)
 513
 514 #define NETWORK_HAS_ERP_VALUE           (1<<10)
 515
 516 #define QOS_QUEUE_NUM                   4
 517 #define QOS_OUI_LEN                     3
 518 #define QOS_OUI_TYPE                    2
 519 #define QOS_ELEMENT_ID                  221
 520 #define QOS_OUI_INFO_SUB_TYPE           0
 521 #define QOS_OUI_PARAM_SUB_TYPE          1
 522 #define QOS_VERSION_1                   1
 523 #define QOS_AIFSN_MIN_VALUE             2
 524
 525 struct libipw_qos_information_element {
 526         u8 elementID;
 527         u8 length;
 528         u8 qui[QOS_OUI_LEN];
 529         u8 qui_type;
 530         u8 qui_subtype;
 531         u8 version;
 532         u8 ac_info;
 533 } __packed;
 534
 535 struct libipw_qos_ac_parameter {
 536         u8 aci_aifsn;
 537         u8 ecw_min_max;
 538         __le16 tx_op_limit;
 539 } __packed;
 540
 541 struct libipw_qos_parameter_info {
 542         struct libipw_qos_information_element info_element;
 543         u8 reserved;
 544         struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
 545 } __packed;
 546
 547 struct libipw_qos_parameters {
 548         __le16 cw_min[QOS_QUEUE_NUM];
 549         __le16 cw_max[QOS_QUEUE_NUM];
 550         u8 aifs[QOS_QUEUE_NUM];
 551         u8 flag[QOS_QUEUE_NUM];
 552         __le16 tx_op_limit[QOS_QUEUE_NUM];
 553 } __packed;
 554
 555 struct libipw_qos_data {
 556         struct libipw_qos_parameters parameters;
 557         int active;
 558         int supported;
 559         u8 param_count;
 560         u8 old_param_count;
 561 };
 562
 563 struct libipw_tim_parameters {
 564         u8 tim_count;
 565         u8 tim_period;
 566 } __packed;
 567
 568 /*******************************************************/
 569
 570 enum {                          /* libipw_basic_report.map */
 571         LIBIPW_BASIC_MAP_BSS = (1 << 0),
 572         LIBIPW_BASIC_MAP_OFDM = (1 << 1),
 573         LIBIPW_BASIC_MAP_UNIDENTIFIED = (1 << 2),
 574         LIBIPW_BASIC_MAP_RADAR = (1 << 3),
 575         LIBIPW_BASIC_MAP_UNMEASURED = (1 << 4),
 576         /* Bits 5-7 are reserved */
 577
 578 };
 579 struct libipw_basic_report {
 580         u8 channel;
 581         __le64 start_time;
 582         __le16 duration;
 583         u8 map;
 584 } __packed;
 585
 586 enum {                          /* libipw_measurement_request.mode */
 587         /* Bit 0 is reserved */
 588         LIBIPW_MEASUREMENT_ENABLE = (1 << 1),
 589         LIBIPW_MEASUREMENT_REQUEST = (1 << 2),
 590         LIBIPW_MEASUREMENT_REPORT = (1 << 3),
 591         /* Bits 4-7 are reserved */
 592 };
 593
 594 enum {
 595         LIBIPW_REPORT_BASIC = 0,        /* required */
 596         LIBIPW_REPORT_CCA = 1,  /* optional */
 597         LIBIPW_REPORT_RPI = 2,  /* optional */
 598         /* 3-255 reserved */
 599 };
 600
 601 struct libipw_measurement_params {
 602         u8 channel;
 603         __le64 start_time;
 604         __le16 duration;
 605 } __packed;
 606
 607 struct libipw_measurement_request {
 608         struct libipw_info_element ie;
 609         u8 token;
 610         u8 mode;
 611         u8 type;
 612         struct libipw_measurement_params params[0];
 613 } __packed;
 614
 615 struct libipw_measurement_report {
 616         struct libipw_info_element ie;
 617         u8 token;
 618         u8 mode;
 619         u8 type;
 620         union {
 621                 struct libipw_basic_report basic[0];
 622         } u;
 623 } __packed;
 624
 625 struct libipw_tpc_report {
 626         u8 transmit_power;
 627         u8 link_margin;
 628 } __packed;
 629
 630 struct libipw_channel_map {
 631         u8 channel;
 632         u8 map;
 633 } __packed;
 634
 635 struct libipw_ibss_dfs {
 636         struct libipw_info_element ie;
 637         u8 owner[ETH_ALEN];
 638         u8 recovery_interval;
 639         struct libipw_channel_map channel_map[0];
 640 };
 641
 642 struct libipw_csa {
 643         u8 mode;
 644         u8 channel;
 645         u8 count;
 646 } __packed;
 647
 648 struct libipw_quiet {
 649         u8 count;
 650         u8 period;
 651         u8 duration;
 652         u8 offset;
 653 } __packed;
 654
 655 struct libipw_network {
 656         /* These entries are used to identify a unique network */
 657         u8 bssid[ETH_ALEN];
 658         u8 channel;
 659         /* Ensure null-terminated for any debug msgs */
 660         u8 ssid[IW_ESSID_MAX_SIZE + 1];
 661         u8 ssid_len;
 662
 663         struct libipw_qos_data qos_data;
 664
 665         /* These are network statistics */
 666         struct libipw_rx_stats stats;
 667         u16 capability;
 668         u8 rates[MAX_RATES_LENGTH];
 669         u8 rates_len;
 670         u8 rates_ex[MAX_RATES_EX_LENGTH];
 671         u8 rates_ex_len;
 672         unsigned long last_scanned;
 673         u8 mode;
 674         u32 flags;
 675         u32 last_associate;
 676         u32 time_stamp[2];
 677         u16 beacon_interval;
 678         u16 listen_interval;
 679         u16 atim_window;
 680         u8 erp_value;
 681         u8 wpa_ie[MAX_WPA_IE_LEN];
 682         size_t wpa_ie_len;
 683         u8 rsn_ie[MAX_WPA_IE_LEN];
 684         size_t rsn_ie_len;
 685         struct libipw_tim_parameters tim;
 686
 687         /* 802.11h info */
 688
 689         /* Power Constraint - mandatory if spctrm mgmt required */
 690         u8 power_constraint;
 691
 692         /* TPC Report - mandatory if spctrm mgmt required */
 693         struct libipw_tpc_report tpc_report;
 694
 695         /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
 696          * NOTE: This is variable length and so must be allocated dynamically */
 697         struct libipw_ibss_dfs *ibss_dfs;
 698
 699         /* Channel Switch Announcement - optional if spctrm mgmt required */
 700         struct libipw_csa csa;
 701
 702         /* Quiet - optional if spctrm mgmt required */
 703         struct libipw_quiet quiet;
 704
 705         struct list_head list;
 706 };
 707
 708 enum libipw_state {
 709         LIBIPW_UNINITIALIZED = 0,
 710         LIBIPW_INITIALIZED,
 711         LIBIPW_ASSOCIATING,
 712         LIBIPW_ASSOCIATED,
 713         LIBIPW_AUTHENTICATING,
 714         LIBIPW_AUTHENTICATED,
 715         LIBIPW_SHUTDOWN
 716 };
 717
 718 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 719 #define DEFAULT_FTS 2346
 720
 721 #define CFG_LIBIPW_RESERVE_FCS (1<<0)
 722 #define CFG_LIBIPW_COMPUTE_FCS (1<<1)
 723 #define CFG_LIBIPW_RTS (1<<2)
 724
 725 #define LIBIPW_24GHZ_MIN_CHANNEL 1
 726 #define LIBIPW_24GHZ_MAX_CHANNEL 14
 727 #define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
 728                                   LIBIPW_24GHZ_MIN_CHANNEL + 1)
 729
 730 #define LIBIPW_52GHZ_MIN_CHANNEL 34
 731 #define LIBIPW_52GHZ_MAX_CHANNEL 165
 732 #define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
 733                                   LIBIPW_52GHZ_MIN_CHANNEL + 1)
 734
 735 enum {
 736         LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
 737         LIBIPW_CH_80211H_RULES = (1 << 1),
 738         LIBIPW_CH_B_ONLY = (1 << 2),
 739         LIBIPW_CH_NO_IBSS = (1 << 3),
 740         LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
 741         LIBIPW_CH_RADAR_DETECT = (1 << 5),
 742         LIBIPW_CH_INVALID = (1 << 6),
 743 };
 744
 745 struct libipw_channel {
 746         u32 freq;       /* in MHz */
 747         u8 channel;
 748         u8 flags;
 749         u8 max_power;   /* in dBm */
 750 };
 751
 752 struct libipw_geo {
 753         u8 name[4];
 754         u8 bg_channels;
 755         u8 a_channels;
 756         struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
 757         struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
 758 };
 759
 760 struct libipw_device {
 761         struct net_device *dev;
 762         struct wireless_dev wdev;
 763         struct libipw_security sec;
 764
 765         /* Bookkeeping structures */
 766         struct libipw_stats ieee_stats;
 767
 768         struct libipw_geo geo;
 769         struct ieee80211_supported_band bg_band;
 770         struct ieee80211_supported_band a_band;
 771
 772         /* Probe / Beacon management */
 773         struct list_head network_free_list;
 774         struct list_head network_list;
 775         struct libipw_network *networks[MAX_NETWORK_COUNT];
 776         int scans;
 777         int scan_age;
 778
 779         int iw_mode;            /* operating mode (IW_MODE_*) */
 780         struct iw_spy_data spy_data;    /* iwspy support */
 781
 782         spinlock_t lock;
 783
 784         int tx_headroom;        /* Set to size of any additional room needed at front
 785                                  * of allocated Tx SKBs */
 786         u32 config;
 787
 788         /* WEP and other encryption related settings at the device level */
 789         int open_wep;           /* Set to 1 to allow unencrypted frames */
 790
 791         int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
 792                                  * WEP key changes */
 793
 794         /* If the host performs {en,de}cryption, then set to 1 */
 795         int host_encrypt;
 796         int host_encrypt_msdu;
 797         int host_decrypt;
 798         /* host performs multicast decryption */
 799         int host_mc_decrypt;
 800
 801         /* host should strip IV and ICV from protected frames */
 802         /* meaningful only when hardware decryption is being used */
 803         int host_strip_iv_icv;
 804
 805         int host_open_frag;
 806         int ieee802_1x;         /* is IEEE 802.1X used */
 807
 808         /* WPA data */
 809         int wpa_enabled;
 810         int drop_unencrypted;
 811         int privacy_invoked;
 812         size_t wpa_ie_len;
 813         u8 *wpa_ie;
 814
 815         struct lib80211_crypt_info crypt_info;
 816
 817         int bcrx_sta_key;       /* use individual keys to override default keys even
 818                                  * with RX of broad/multicast frames */
 819
 820         /* Fragmentation structures */
 821         struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
 822         unsigned int frag_next_idx;
 823         u16 fts;                /* Fragmentation Threshold */
 824         u16 rts;                /* RTS threshold */
 825
 826         /* Association info */
 827         u8 bssid[ETH_ALEN];
 828
 829         enum libipw_state state;
 830
 831         int mode;               /* A, B, G */
 832         int modulation;         /* CCK, OFDM */
 833         int freq_band;          /* 2.4Ghz, 5.2Ghz, Mixed */
 834         int abg_true;           /* ABG flag              */
 835
 836         int perfect_rssi;
 837         int worst_rssi;
 838
 839         u16 prev_seq_ctl;       /* used to drop duplicate frames */
 840
 841         /* Callback functions */
 842         void (*set_security) (struct net_device * dev,
 843                               struct libipw_security * sec);
 844         netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
 845                                         struct net_device * dev, int pri);
 846         int (*reset_port) (struct net_device * dev);
 847         int (*is_queue_full) (struct net_device * dev, int pri);
 848
 849         int (*handle_management) (struct net_device * dev,
 850                                   struct libipw_network * network, u16 type);
 851         int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
 852
 853         /* Typical STA methods */
 854         int (*handle_auth) (struct net_device * dev,
 855                             struct libipw_auth * auth);
 856         int (*handle_deauth) (struct net_device * dev,
 857                               struct libipw_deauth * auth);
 858         int (*handle_action) (struct net_device * dev,
 859                               struct libipw_action * action,
 860                               struct libipw_rx_stats * stats);
 861         int (*handle_disassoc) (struct net_device * dev,
 862                                 struct libipw_disassoc * assoc);
 863         int (*handle_beacon) (struct net_device * dev,
 864                               struct libipw_beacon * beacon,
 865                               struct libipw_network * network);
 866         int (*handle_probe_response) (struct net_device * dev,
 867                                       struct libipw_probe_response * resp,
 868                                       struct libipw_network * network);
 869         int (*handle_probe_request) (struct net_device * dev,
 870                                      struct libipw_probe_request * req,
 871                                      struct libipw_rx_stats * stats);
 872         int (*handle_assoc_response) (struct net_device * dev,
 873                                       struct libipw_assoc_response * resp,
 874                                       struct libipw_network * network);
 875
 876         /* Typical AP methods */
 877         int (*handle_assoc_request) (struct net_device * dev);
 878         int (*handle_reassoc_request) (struct net_device * dev,
 879                                        struct libipw_reassoc_request * req);
 880
 881         /* This must be the last item so that it points to the data
 882          * allocated beyond this structure by alloc_libipw */
 883         u8 priv[0];
 884 };
 885
 886 #define IEEE_A            (1<<0)
 887 #define IEEE_B            (1<<1)
 888 #define IEEE_G            (1<<2)
 889 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
 890
 891 static inline void *libipw_priv(struct net_device *dev)
 892 {
 893         return ((struct libipw_device *)netdev_priv(dev))->priv;
 894 }
 895
 896 static inline int libipw_is_valid_mode(struct libipw_device *ieee,
 897                                           int mode)
 898 {
 899         /*
 900          * It is possible for both access points and our device to support
 901          * combinations of modes, so as long as there is one valid combination
 902          * of ap/device supported modes, then return success
 903          *
 904          */
 905         if ((mode & IEEE_A) &&
 906             (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
 907             (ieee->freq_band & LIBIPW_52GHZ_BAND))
 908                 return 1;
 909
 910         if ((mode & IEEE_G) &&
 911             (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
 912             (ieee->freq_band & LIBIPW_24GHZ_BAND))
 913                 return 1;
 914
 915         if ((mode & IEEE_B) &&
 916             (ieee->modulation & LIBIPW_CCK_MODULATION) &&
 917             (ieee->freq_band & LIBIPW_24GHZ_BAND))
 918                 return 1;
 919
 920         return 0;
 921 }
 922
 923 static inline int libipw_get_hdrlen(u16 fc)
 924 {
 925         int hdrlen = LIBIPW_3ADDR_LEN;
 926         u16 stype = WLAN_FC_GET_STYPE(fc);
 927
 928         switch (WLAN_FC_GET_TYPE(fc)) {
 929         case IEEE80211_FTYPE_DATA:
 930                 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
 931                         hdrlen = LIBIPW_4ADDR_LEN;
 932                 if (stype & IEEE80211_STYPE_QOS_DATA)
 933                         hdrlen += 2;
 934                 break;
 935         case IEEE80211_FTYPE_CTL:
 936                 switch (WLAN_FC_GET_STYPE(fc)) {
 937                 case IEEE80211_STYPE_CTS:
 938                 case IEEE80211_STYPE_ACK:
 939                         hdrlen = LIBIPW_1ADDR_LEN;
 940                         break;
 941                 default:
 942                         hdrlen = LIBIPW_2ADDR_LEN;
 943                         break;
 944                 }
 945                 break;
 946         }
 947
 948         return hdrlen;
 949 }
 950
 951 static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
 952 {
 953         switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
 954         case LIBIPW_1ADDR_LEN:
 955                 return ((struct libipw_hdr_1addr *)hdr)->payload;
 956         case LIBIPW_2ADDR_LEN:
 957                 return ((struct libipw_hdr_2addr *)hdr)->payload;
 958         case LIBIPW_3ADDR_LEN:
 959                 return ((struct libipw_hdr_3addr *)hdr)->payload;
 960         case LIBIPW_4ADDR_LEN:
 961                 return ((struct libipw_hdr_4addr *)hdr)->payload;
 962         }
 963         return NULL;
 964 }
 965
 966 static inline int libipw_is_ofdm_rate(u8 rate)
 967 {
 968         switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
 969         case LIBIPW_OFDM_RATE_6MB:
 970         case LIBIPW_OFDM_RATE_9MB:
 971         case LIBIPW_OFDM_RATE_12MB:
 972         case LIBIPW_OFDM_RATE_18MB:
 973         case LIBIPW_OFDM_RATE_24MB:
 974         case LIBIPW_OFDM_RATE_36MB:
 975         case LIBIPW_OFDM_RATE_48MB:
 976         case LIBIPW_OFDM_RATE_54MB:
 977                 return 1;
 978         }
 979         return 0;
 980 }
 981
 982 static inline int libipw_is_cck_rate(u8 rate)
 983 {
 984         switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
 985         case LIBIPW_CCK_RATE_1MB:
 986         case LIBIPW_CCK_RATE_2MB:
 987         case LIBIPW_CCK_RATE_5MB:
 988         case LIBIPW_CCK_RATE_11MB:
 989                 return 1;
 990         }
 991         return 0;
 992 }
 993
 994 /* libipw.c */
 995 extern void free_libipw(struct net_device *dev, int monitor);
 996 extern struct net_device *alloc_libipw(int sizeof_priv, int monitor);
 997 extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
 998
 999 extern void libipw_networks_age(struct libipw_device *ieee,
1000                                    unsigned long age_secs);
1001
1002 extern int libipw_set_encryption(struct libipw_device *ieee);
1003
1004 /* libipw_tx.c */
1005 extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
1006                                struct net_device *dev);
1007 extern void libipw_txb_free(struct libipw_txb *);
1008
1009 /* libipw_rx.c */
1010 extern void libipw_rx_any(struct libipw_device *ieee,
1011                      struct sk_buff *skb, struct libipw_rx_stats *stats);
1012 extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
1013                         struct libipw_rx_stats *rx_stats);
1014 /* make sure to set stats->len */
1015 extern void libipw_rx_mgt(struct libipw_device *ieee,
1016                              struct libipw_hdr_4addr *header,
1017                              struct libipw_rx_stats *stats);
1018 extern void libipw_network_reset(struct libipw_network *network);
1019
1020 /* libipw_geo.c */
1021 extern const struct libipw_geo *libipw_get_geo(struct libipw_device
1022                                                      *ieee);
1023 extern int libipw_set_geo(struct libipw_device *ieee,
1024                              const struct libipw_geo *geo);
1025
1026 extern int libipw_is_valid_channel(struct libipw_device *ieee,
1027                                       u8 channel);
1028 extern int libipw_channel_to_index(struct libipw_device *ieee,
1029                                       u8 channel);
1030 extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
1031 extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
1032                                       u8 channel);
1033 extern const struct libipw_channel *libipw_get_channel(struct
1034                                                              libipw_device
1035                                                              *ieee, u8 channel);
1036 extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
1037                                       u8 channel);
1038
1039 /* libipw_wx.c */
1040 extern int libipw_wx_get_scan(struct libipw_device *ieee,
1041                                  struct iw_request_info *info,
1042                                  union iwreq_data *wrqu, char *key);
1043 extern int libipw_wx_set_encode(struct libipw_device *ieee,
1044                                    struct iw_request_info *info,
1045                                    union iwreq_data *wrqu, char *key);
1046 extern int libipw_wx_get_encode(struct libipw_device *ieee,
1047                                    struct iw_request_info *info,
1048                                    union iwreq_data *wrqu, char *key);
1049 extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
1050                                       struct iw_request_info *info,
1051                                       union iwreq_data *wrqu, char *extra);
1052 extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
1053                                       struct iw_request_info *info,
1054                                       union iwreq_data *wrqu, char *extra);
1055
1056 static inline void libipw_increment_scans(struct libipw_device *ieee)
1057 {
1058         ieee->scans++;
1059 }
1060
1061 static inline int libipw_get_scans(struct libipw_device *ieee)
1062 {
1063         return ieee->scans;
1064 }
1065
1066 #endif                          /* LIBIPW_H */