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 #else
  70 #define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)
  71 #endif                          /* CONFIG_LIBIPW_DEBUG */
  72
  73 /*
  74  * To use the debug system:
  75  *
  76  * If you are defining a new debug classification, simply add it to the #define
  77  * list here in the form of:
  78  *
  79  * #define LIBIPW_DL_xxxx VALUE
  80  *
  81  * shifting value to the left one bit from the previous entry.  xxxx should be
  82  * the name of the classification (for example, WEP)
  83  *
  84  * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your
  85  * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want
  86  * to send output to that classification.
  87  *
  88  * To add your debug level to the list of levels seen when you perform
  89  *
  90  * % cat /proc/net/ieee80211/debug_level
  91  *
  92  * you simply need to add your entry to the libipw_debug_level array.
  93  *
  94  * If you do not see debug_level in /proc/net/ieee80211 then you do not have
  95  * CONFIG_LIBIPW_DEBUG defined in your kernel configuration
  96  *
  97  */
  98
  99 #define LIBIPW_DL_INFO          (1<<0)
 100 #define LIBIPW_DL_WX            (1<<1)
 101 #define LIBIPW_DL_SCAN          (1<<2)
 102 #define LIBIPW_DL_STATE         (1<<3)
 103 #define LIBIPW_DL_MGMT          (1<<4)
 104 #define LIBIPW_DL_FRAG          (1<<5)
 105 #define LIBIPW_DL_DROP          (1<<7)
 106
 107 #define LIBIPW_DL_TX            (1<<8)
 108 #define LIBIPW_DL_RX            (1<<9)
 109 #define LIBIPW_DL_QOS           (1<<31)
 110
 111 #define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
 112 #define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
 113 #define LIBIPW_DEBUG_INFO(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
 114
 115 #define LIBIPW_DEBUG_WX(f, a...)     LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
 116 #define LIBIPW_DEBUG_SCAN(f, a...)   LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
 117 #define LIBIPW_DEBUG_STATE(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
 118 #define LIBIPW_DEBUG_MGMT(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
 119 #define LIBIPW_DEBUG_FRAG(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
 120 #define LIBIPW_DEBUG_DROP(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
 121 #define LIBIPW_DEBUG_TX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
 122 #define LIBIPW_DEBUG_RX(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
 123 #define LIBIPW_DEBUG_QOS(f, a...)  LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
 124 #include <linux/netdevice.h>
 125 #include <linux/if_arp.h>       /* ARPHRD_ETHER */
 126
 127 #ifndef WIRELESS_SPY
 128 #define WIRELESS_SPY            /* enable iwspy support */
 129 #endif
 130 #include <net/iw_handler.h>     /* new driver API */
 131
 132 #define ETH_P_PREAUTH 0x88C7    /* IEEE 802.11i pre-authentication */
 133
 134 #ifndef ETH_P_80211_RAW
 135 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 136 #endif
 137
 138 /* IEEE 802.11 defines */
 139
 140 #define P80211_OUI_LEN 3
 141
 142 struct libipw_snap_hdr {
 143
 144         u8 dsap;                /* always 0xAA */
 145         u8 ssap;                /* always 0xAA */
 146         u8 ctrl;                /* always 0x03 */
 147         u8 oui[P80211_OUI_LEN]; /* organizational universal id */
 148
 149 } __packed;
 150
 151 #define SNAP_SIZE sizeof(struct libipw_snap_hdr)
 152
 153 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
 154 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
 155 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
 156
 157 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
 158 #define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 159
 160 #define LIBIPW_STATMASK_SIGNAL (1<<0)
 161 #define LIBIPW_STATMASK_RSSI (1<<1)
 162 #define LIBIPW_STATMASK_NOISE (1<<2)
 163 #define LIBIPW_STATMASK_RATE (1<<3)
 164 #define LIBIPW_STATMASK_WEMASK 0x7
 165
 166 #define LIBIPW_CCK_MODULATION    (1<<0)
 167 #define LIBIPW_OFDM_MODULATION   (1<<1)
 168
 169 #define LIBIPW_24GHZ_BAND     (1<<0)
 170 #define LIBIPW_52GHZ_BAND     (1<<1)
 171
 172 #define LIBIPW_CCK_RATE_1MB                     0x02
 173 #define LIBIPW_CCK_RATE_2MB                     0x04
 174 #define LIBIPW_CCK_RATE_5MB                     0x0B
 175 #define LIBIPW_CCK_RATE_11MB                    0x16
 176 #define LIBIPW_OFDM_RATE_6MB                    0x0C
 177 #define LIBIPW_OFDM_RATE_9MB                    0x12
 178 #define LIBIPW_OFDM_RATE_12MB           0x18
 179 #define LIBIPW_OFDM_RATE_18MB           0x24
 180 #define LIBIPW_OFDM_RATE_24MB           0x30
 181 #define LIBIPW_OFDM_RATE_36MB           0x48
 182 #define LIBIPW_OFDM_RATE_48MB           0x60
 183 #define LIBIPW_OFDM_RATE_54MB           0x6C
 184 #define LIBIPW_BASIC_RATE_MASK          0x80
 185
 186 #define LIBIPW_CCK_RATE_1MB_MASK                (1<<0)
 187 #define LIBIPW_CCK_RATE_2MB_MASK                (1<<1)
 188 #define LIBIPW_CCK_RATE_5MB_MASK                (1<<2)
 189 #define LIBIPW_CCK_RATE_11MB_MASK               (1<<3)
 190 #define LIBIPW_OFDM_RATE_6MB_MASK               (1<<4)
 191 #define LIBIPW_OFDM_RATE_9MB_MASK               (1<<5)
 192 #define LIBIPW_OFDM_RATE_12MB_MASK              (1<<6)
 193 #define LIBIPW_OFDM_RATE_18MB_MASK              (1<<7)
 194 #define LIBIPW_OFDM_RATE_24MB_MASK              (1<<8)
 195 #define LIBIPW_OFDM_RATE_36MB_MASK              (1<<9)
 196 #define LIBIPW_OFDM_RATE_48MB_MASK              (1<<10)
 197 #define LIBIPW_OFDM_RATE_54MB_MASK              (1<<11)
 198
 199 #define LIBIPW_CCK_RATES_MASK           0x0000000F
 200 #define LIBIPW_CCK_BASIC_RATES_MASK     (LIBIPW_CCK_RATE_1MB_MASK | \
 201         LIBIPW_CCK_RATE_2MB_MASK)
 202 #define LIBIPW_CCK_DEFAULT_RATES_MASK   (LIBIPW_CCK_BASIC_RATES_MASK | \
 203         LIBIPW_CCK_RATE_5MB_MASK | \
 204         LIBIPW_CCK_RATE_11MB_MASK)
 205
 206 #define LIBIPW_OFDM_RATES_MASK          0x00000FF0
 207 #define LIBIPW_OFDM_BASIC_RATES_MASK    (LIBIPW_OFDM_RATE_6MB_MASK | \
 208         LIBIPW_OFDM_RATE_12MB_MASK | \
 209         LIBIPW_OFDM_RATE_24MB_MASK)
 210 #define LIBIPW_OFDM_DEFAULT_RATES_MASK  (LIBIPW_OFDM_BASIC_RATES_MASK | \
 211         LIBIPW_OFDM_RATE_9MB_MASK  | \
 212         LIBIPW_OFDM_RATE_18MB_MASK | \
 213         LIBIPW_OFDM_RATE_36MB_MASK | \
 214         LIBIPW_OFDM_RATE_48MB_MASK | \
 215         LIBIPW_OFDM_RATE_54MB_MASK)
 216 #define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
 217                                 LIBIPW_CCK_DEFAULT_RATES_MASK)
 218
 219 #define LIBIPW_NUM_OFDM_RATES       8
 220 #define LIBIPW_NUM_CCK_RATES                4
 221 #define LIBIPW_OFDM_SHIFT_MASK_A         4
 222
 223 /* NOTE: This data is for statistical purposes; not all hardware provides this
 224  *       information for frames received.
 225  *       For libipw_rx_mgt, you need to set at least the 'len' parameter.
 226  */
 227 struct libipw_rx_stats {
 228         u32 mac_time;
 229         s8 rssi;
 230         u8 signal;
 231         u8 noise;
 232         u16 rate;               /* in 100 kbps */
 233         u8 received_channel;
 234         u8 control;
 235         u8 mask;
 236         u8 freq;
 237         u16 len;
 238         u64 tsf;
 239         u32 beacon_time;
 240 };
 241
 242 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 243  * three fragmented frames. This define can be increased to support more
 244  * concurrent frames, but it should be noted that each entry can consume about
 245  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 246 #define LIBIPW_FRAG_CACHE_LEN 4
 247
 248 struct libipw_frag_entry {
 249         unsigned long first_frag_time;
 250         unsigned int seq;
 251         unsigned int last_frag;
 252         struct sk_buff *skb;
 253         u8 src_addr[ETH_ALEN];
 254         u8 dst_addr[ETH_ALEN];
 255 };
 256
 257 struct libipw_stats {
 258         unsigned int tx_unicast_frames;
 259         unsigned int tx_multicast_frames;
 260         unsigned int tx_fragments;
 261         unsigned int tx_unicast_octets;
 262         unsigned int tx_multicast_octets;
 263         unsigned int tx_deferred_transmissions;
 264         unsigned int tx_single_retry_frames;
 265         unsigned int tx_multiple_retry_frames;
 266         unsigned int tx_retry_limit_exceeded;
 267         unsigned int tx_discards;
 268         unsigned int rx_unicast_frames;
 269         unsigned int rx_multicast_frames;
 270         unsigned int rx_fragments;
 271         unsigned int rx_unicast_octets;
 272         unsigned int rx_multicast_octets;
 273         unsigned int rx_fcs_errors;
 274         unsigned int rx_discards_no_buffer;
 275         unsigned int tx_discards_wrong_sa;
 276         unsigned int rx_discards_undecryptable;
 277         unsigned int rx_message_in_msg_fragments;
 278         unsigned int rx_message_in_bad_msg_fragments;
 279 };
 280
 281 struct libipw_device;
 282
 283 #define SEC_KEY_1               (1<<0)
 284 #define SEC_KEY_2               (1<<1)
 285 #define SEC_KEY_3               (1<<2)
 286 #define SEC_KEY_4               (1<<3)
 287 #define SEC_ACTIVE_KEY          (1<<4)
 288 #define SEC_AUTH_MODE           (1<<5)
 289 #define SEC_UNICAST_GROUP       (1<<6)
 290 #define SEC_LEVEL               (1<<7)
 291 #define SEC_ENABLED             (1<<8)
 292 #define SEC_ENCRYPT             (1<<9)
 293
 294 #define SEC_LEVEL_0             0       /* None */
 295 #define SEC_LEVEL_1             1       /* WEP 40 and 104 bit */
 296 #define SEC_LEVEL_2             2       /* Level 1 + TKIP */
 297 #define SEC_LEVEL_2_CKIP        3       /* Level 1 + CKIP */
 298 #define SEC_LEVEL_3             4       /* Level 2 + CCMP */
 299
 300 #define SEC_ALG_NONE            0
 301 #define SEC_ALG_WEP             1
 302 #define SEC_ALG_TKIP            2
 303 #define SEC_ALG_CCMP            3
 304
 305 #define WEP_KEYS                4
 306 #define WEP_KEY_LEN             13
 307 #define SCM_KEY_LEN             32
 308 #define SCM_TEMPORAL_KEY_LENGTH 16
 309
 310 struct libipw_security {
 311         u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
 312         u8 auth_mode;
 313         u8 encode_alg[WEP_KEYS];
 314         u8 key_sizes[WEP_KEYS];
 315         u8 keys[WEP_KEYS][SCM_KEY_LEN];
 316         u8 level;
 317         u16 flags;
 318 } __packed;
 319
 320 /*
 321
 322  802.11 data frame from AP
 323
 324       ,-------------------------------------------------------------------.
 325 Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
 326       |------|------|---------|---------|---------|------|---------|------|
 327 Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
 328       |      | tion | (BSSID) |         |         | ence |  data   |      |
 329       `-------------------------------------------------------------------'
 330
 331 Total: 28-2340 bytes
 332
 333 */
 334
 335 #define BEACON_PROBE_SSID_ID_POSITION 12
 336
 337 struct libipw_hdr_1addr {
 338         __le16 frame_ctl;
 339         __le16 duration_id;
 340         u8 addr1[ETH_ALEN];
 341         u8 payload[0];
 342 } __packed;
 343
 344 struct libipw_hdr_2addr {
 345         __le16 frame_ctl;
 346         __le16 duration_id;
 347         u8 addr1[ETH_ALEN];
 348         u8 addr2[ETH_ALEN];
 349         u8 payload[0];
 350 } __packed;
 351
 352 struct libipw_hdr_3addr {
 353         __le16 frame_ctl;
 354         __le16 duration_id;
 355         u8 addr1[ETH_ALEN];
 356         u8 addr2[ETH_ALEN];
 357         u8 addr3[ETH_ALEN];
 358         __le16 seq_ctl;
 359         u8 payload[0];
 360 } __packed;
 361
 362 struct libipw_hdr_4addr {
 363         __le16 frame_ctl;
 364         __le16 duration_id;
 365         u8 addr1[ETH_ALEN];
 366         u8 addr2[ETH_ALEN];
 367         u8 addr3[ETH_ALEN];
 368         __le16 seq_ctl;
 369         u8 addr4[ETH_ALEN];
 370         u8 payload[0];
 371 } __packed;
 372
 373 struct libipw_hdr_3addrqos {
 374         __le16 frame_ctl;
 375         __le16 duration_id;
 376         u8 addr1[ETH_ALEN];
 377         u8 addr2[ETH_ALEN];
 378         u8 addr3[ETH_ALEN];
 379         __le16 seq_ctl;
 380         u8 payload[0];
 381         __le16 qos_ctl;
 382 } __packed;
 383
 384 struct libipw_info_element {
 385         u8 id;
 386         u8 len;
 387         u8 data[0];
 388 } __packed;
 389
 390 /*
 391  * These are the data types that can make up management packets
 392  *
 393         u16 auth_algorithm;
 394         u16 auth_sequence;
 395         u16 beacon_interval;
 396         u16 capability;
 397         u8 current_ap[ETH_ALEN];
 398         u16 listen_interval;
 399         struct {
 400                 u16 association_id:14, reserved:2;
 401         } __packed;
 402         u32 time_stamp[2];
 403         u16 reason;
 404         u16 status;
 405 */
 406
 407 struct libipw_auth {
 408         struct libipw_hdr_3addr header;
 409         __le16 algorithm;
 410         __le16 transaction;
 411         __le16 status;
 412         /* challenge */
 413         struct libipw_info_element info_element[0];
 414 } __packed;
 415
 416 struct libipw_channel_switch {
 417         u8 id;
 418         u8 len;
 419         u8 mode;
 420         u8 channel;
 421         u8 count;
 422 } __packed;
 423
 424 struct libipw_action {
 425         struct libipw_hdr_3addr header;
 426         u8 category;
 427         u8 action;
 428         union {
 429                 struct libipw_action_exchange {
 430                         u8 token;
 431                         struct libipw_info_element info_element[0];
 432                 } exchange;
 433                 struct libipw_channel_switch channel_switch;
 434
 435         } format;
 436 } __packed;
 437
 438 struct libipw_disassoc {
 439         struct libipw_hdr_3addr header;
 440         __le16 reason;
 441 } __packed;
 442
 443 /* Alias deauth for disassoc */
 444 #define libipw_deauth libipw_disassoc
 445
 446 struct libipw_probe_request {
 447         struct libipw_hdr_3addr header;
 448         /* SSID, supported rates */
 449         struct libipw_info_element info_element[0];
 450 } __packed;
 451
 452 struct libipw_probe_response {
 453         struct libipw_hdr_3addr header;
 454         __le32 time_stamp[2];
 455         __le16 beacon_interval;
 456         __le16 capability;
 457         /* SSID, supported rates, FH params, DS params,
 458          * CF params, IBSS params, TIM (if beacon), RSN */
 459         struct libipw_info_element info_element[0];
 460 } __packed;
 461
 462 /* Alias beacon for probe_response */
 463 #define libipw_beacon libipw_probe_response
 464
 465 struct libipw_assoc_request {
 466         struct libipw_hdr_3addr header;
 467         __le16 capability;
 468         __le16 listen_interval;
 469         /* SSID, supported rates, RSN */
 470         struct libipw_info_element info_element[0];
 471 } __packed;
 472
 473 struct libipw_reassoc_request {
 474         struct libipw_hdr_3addr header;
 475         __le16 capability;
 476         __le16 listen_interval;
 477         u8 current_ap[ETH_ALEN];
 478         struct libipw_info_element info_element[0];
 479 } __packed;
 480
 481 struct libipw_assoc_response {
 482         struct libipw_hdr_3addr header;
 483         __le16 capability;
 484         __le16 status;
 485         __le16 aid;
 486         /* supported rates */
 487         struct libipw_info_element info_element[0];
 488 } __packed;
 489
 490 struct libipw_txb {
 491         u8 nr_frags;
 492         u8 encrypted;
 493         u8 rts_included;
 494         u8 reserved;
 495         u16 frag_size;
 496         u16 payload_size;
 497         struct sk_buff *fragments[0];
 498 };
 499
 500 /* SWEEP TABLE ENTRIES NUMBER */
 501 #define MAX_SWEEP_TAB_ENTRIES             42
 502 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 503 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 504  * only use 8, and then use extended rates for the remaining supported
 505  * rates.  Other APs, however, stick all of their supported rates on the
 506  * main rates information element... */
 507 #define MAX_RATES_LENGTH                  ((u8)12)
 508 #define MAX_RATES_EX_LENGTH               ((u8)16)
 509 #define MAX_NETWORK_COUNT                  128
 510
 511 #define CRC_LENGTH                 4U
 512
 513 #define MAX_WPA_IE_LEN 64
 514
 515 #define NETWORK_HAS_OFDM       (1<<1)
 516 #define NETWORK_HAS_CCK        (1<<2)
 517
 518 /* QoS structure */
 519 #define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
 520 #define NETWORK_HAS_QOS_INFORMATION     (1<<4)
 521 #define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
 522                                          NETWORK_HAS_QOS_INFORMATION)
 523
 524 /* 802.11h */
 525 #define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
 526 #define NETWORK_HAS_CSA                 (1<<6)
 527 #define NETWORK_HAS_QUIET               (1<<7)
 528 #define NETWORK_HAS_IBSS_DFS            (1<<8)
 529 #define NETWORK_HAS_TPC_REPORT          (1<<9)
 530
 531 #define NETWORK_HAS_ERP_VALUE           (1<<10)
 532
 533 #define QOS_QUEUE_NUM                   4
 534 #define QOS_OUI_LEN                     3
 535 #define QOS_OUI_TYPE                    2
 536 #define QOS_ELEMENT_ID                  221
 537 #define QOS_OUI_INFO_SUB_TYPE           0
 538 #define QOS_OUI_PARAM_SUB_TYPE          1
 539 #define QOS_VERSION_1                   1
 540 #define QOS_AIFSN_MIN_VALUE             2
 541
 542 struct libipw_qos_information_element {
 543         u8 elementID;
 544         u8 length;
 545         u8 qui[QOS_OUI_LEN];
 546         u8 qui_type;
 547         u8 qui_subtype;
 548         u8 version;
 549         u8 ac_info;
 550 } __packed;
 551
 552 struct libipw_qos_ac_parameter {
 553         u8 aci_aifsn;
 554         u8 ecw_min_max;
 555         __le16 tx_op_limit;
 556 } __packed;
 557
 558 struct libipw_qos_parameter_info {
 559         struct libipw_qos_information_element info_element;
 560         u8 reserved;
 561         struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
 562 } __packed;
 563
 564 struct libipw_qos_parameters {
 565         __le16 cw_min[QOS_QUEUE_NUM];
 566         __le16 cw_max[QOS_QUEUE_NUM];
 567         u8 aifs[QOS_QUEUE_NUM];
 568         u8 flag[QOS_QUEUE_NUM];
 569         __le16 tx_op_limit[QOS_QUEUE_NUM];
 570 } __packed;
 571
 572 struct libipw_qos_data {
 573         struct libipw_qos_parameters parameters;
 574         int active;
 575         int supported;
 576         u8 param_count;
 577         u8 old_param_count;
 578 };
 579
 580 struct libipw_tim_parameters {
 581         u8 tim_count;
 582         u8 tim_period;
 583 } __packed;
 584
 585 /*******************************************************/
 586
 587 struct libipw_tpc_report {
 588         u8 transmit_power;
 589         u8 link_margin;
 590 } __packed;
 591
 592 struct libipw_channel_map {
 593         u8 channel;
 594         u8 map;
 595 } __packed;
 596
 597 struct libipw_ibss_dfs {
 598         struct libipw_info_element ie;
 599         u8 owner[ETH_ALEN];
 600         u8 recovery_interval;
 601         struct libipw_channel_map channel_map[0];
 602 };
 603
 604 struct libipw_csa {
 605         u8 mode;
 606         u8 channel;
 607         u8 count;
 608 } __packed;
 609
 610 struct libipw_quiet {
 611         u8 count;
 612         u8 period;
 613         u8 duration;
 614         u8 offset;
 615 } __packed;
 616
 617 struct libipw_network {
 618         /* These entries are used to identify a unique network */
 619         u8 bssid[ETH_ALEN];
 620         u8 channel;
 621         /* Ensure null-terminated for any debug msgs */
 622         u8 ssid[IW_ESSID_MAX_SIZE + 1];
 623         u8 ssid_len;
 624
 625         struct libipw_qos_data qos_data;
 626
 627         /* These are network statistics */
 628         struct libipw_rx_stats stats;
 629         u16 capability;
 630         u8 rates[MAX_RATES_LENGTH];
 631         u8 rates_len;
 632         u8 rates_ex[MAX_RATES_EX_LENGTH];
 633         u8 rates_ex_len;
 634         unsigned long last_scanned;
 635         u8 mode;
 636         u32 flags;
 637         u32 last_associate;
 638         u32 time_stamp[2];
 639         u16 beacon_interval;
 640         u16 listen_interval;
 641         u16 atim_window;
 642         u8 erp_value;
 643         u8 wpa_ie[MAX_WPA_IE_LEN];
 644         size_t wpa_ie_len;
 645         u8 rsn_ie[MAX_WPA_IE_LEN];
 646         size_t rsn_ie_len;
 647         struct libipw_tim_parameters tim;
 648
 649         /* 802.11h info */
 650
 651         /* Power Constraint - mandatory if spctrm mgmt required */
 652         u8 power_constraint;
 653
 654         /* TPC Report - mandatory if spctrm mgmt required */
 655         struct libipw_tpc_report tpc_report;
 656
 657         /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
 658          * NOTE: This is variable length and so must be allocated dynamically */
 659         struct libipw_ibss_dfs *ibss_dfs;
 660
 661         /* Channel Switch Announcement - optional if spctrm mgmt required */
 662         struct libipw_csa csa;
 663
 664         /* Quiet - optional if spctrm mgmt required */
 665         struct libipw_quiet quiet;
 666
 667         struct list_head list;
 668 };
 669
 670 enum libipw_state {
 671         LIBIPW_UNINITIALIZED = 0,
 672         LIBIPW_INITIALIZED,
 673         LIBIPW_ASSOCIATING,
 674         LIBIPW_ASSOCIATED,
 675         LIBIPW_AUTHENTICATING,
 676         LIBIPW_AUTHENTICATED,
 677         LIBIPW_SHUTDOWN
 678 };
 679
 680 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 681 #define DEFAULT_FTS 2346
 682
 683 #define CFG_LIBIPW_RESERVE_FCS (1<<0)
 684 #define CFG_LIBIPW_COMPUTE_FCS (1<<1)
 685 #define CFG_LIBIPW_RTS (1<<2)
 686
 687 #define LIBIPW_24GHZ_MIN_CHANNEL 1
 688 #define LIBIPW_24GHZ_MAX_CHANNEL 14
 689 #define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
 690                                   LIBIPW_24GHZ_MIN_CHANNEL + 1)
 691
 692 #define LIBIPW_52GHZ_MIN_CHANNEL 34
 693 #define LIBIPW_52GHZ_MAX_CHANNEL 165
 694 #define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
 695                                   LIBIPW_52GHZ_MIN_CHANNEL + 1)
 696
 697 enum {
 698         LIBIPW_CH_PASSIVE_ONLY = (1 << 0),
 699         LIBIPW_CH_80211H_RULES = (1 << 1),
 700         LIBIPW_CH_B_ONLY = (1 << 2),
 701         LIBIPW_CH_NO_IBSS = (1 << 3),
 702         LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),
 703         LIBIPW_CH_RADAR_DETECT = (1 << 5),
 704         LIBIPW_CH_INVALID = (1 << 6),
 705 };
 706
 707 struct libipw_channel {
 708         u32 freq;       /* in MHz */
 709         u8 channel;
 710         u8 flags;
 711         u8 max_power;   /* in dBm */
 712 };
 713
 714 struct libipw_geo {
 715         u8 name[4];
 716         u8 bg_channels;
 717         u8 a_channels;
 718         struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
 719         struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
 720 };
 721
 722 struct libipw_device {
 723         struct net_device *dev;
 724         struct wireless_dev wdev;
 725         struct libipw_security sec;
 726
 727         /* Bookkeeping structures */
 728         struct libipw_stats ieee_stats;
 729
 730         struct libipw_geo geo;
 731         struct ieee80211_supported_band bg_band;
 732         struct ieee80211_supported_band a_band;
 733
 734         /* Probe / Beacon management */
 735         struct list_head network_free_list;
 736         struct list_head network_list;
 737         struct libipw_network *networks[MAX_NETWORK_COUNT];
 738         int scans;
 739         int scan_age;
 740
 741         int iw_mode;            /* operating mode (IW_MODE_*) */
 742         struct iw_spy_data spy_data;    /* iwspy support */
 743
 744         spinlock_t lock;
 745
 746         int tx_headroom;        /* Set to size of any additional room needed at front
 747                                  * of allocated Tx SKBs */
 748         u32 config;
 749
 750         /* WEP and other encryption related settings at the device level */
 751         int open_wep;           /* Set to 1 to allow unencrypted frames */
 752
 753         /* If the host performs {en,de}cryption, then set to 1 */
 754         int host_encrypt;
 755         int host_encrypt_msdu;
 756         int host_decrypt;
 757         /* host performs multicast decryption */
 758         int host_mc_decrypt;
 759
 760         /* host should strip IV and ICV from protected frames */
 761         /* meaningful only when hardware decryption is being used */
 762         int host_strip_iv_icv;
 763
 764         int host_open_frag;
 765         int ieee802_1x;         /* is IEEE 802.1X used */
 766
 767         /* WPA data */
 768         int wpa_enabled;
 769         int drop_unencrypted;
 770         int privacy_invoked;
 771         size_t wpa_ie_len;
 772         u8 *wpa_ie;
 773
 774         struct lib80211_crypt_info crypt_info;
 775
 776         int bcrx_sta_key;       /* use individual keys to override default keys even
 777                                  * with RX of broad/multicast frames */
 778
 779         /* Fragmentation structures */
 780         struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
 781         unsigned int frag_next_idx;
 782         u16 fts;                /* Fragmentation Threshold */
 783         u16 rts;                /* RTS threshold */
 784
 785         /* Association info */
 786         u8 bssid[ETH_ALEN];
 787
 788         enum libipw_state state;
 789
 790         int mode;               /* A, B, G */
 791         int modulation;         /* CCK, OFDM */
 792         int freq_band;          /* 2.4Ghz, 5.2Ghz, Mixed */
 793         int abg_true;           /* ABG flag              */
 794
 795         int perfect_rssi;
 796         int worst_rssi;
 797
 798         u16 prev_seq_ctl;       /* used to drop duplicate frames */
 799
 800         /* Callback functions */
 801         void (*set_security) (struct net_device * dev,
 802                               struct libipw_security * sec);
 803         netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
 804                                         struct net_device * dev, int pri);
 805         int (*is_queue_full) (struct net_device * dev, int pri);
 806
 807         int (*handle_management) (struct net_device * dev,
 808                                   struct libipw_network * network, u16 type);
 809         int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
 810
 811         /* Typical STA methods */
 812         int (*handle_auth) (struct net_device * dev,
 813                             struct libipw_auth * auth);
 814         int (*handle_deauth) (struct net_device * dev,
 815                               struct libipw_deauth * auth);
 816         int (*handle_action) (struct net_device * dev,
 817                               struct libipw_action * action,
 818                               struct libipw_rx_stats * stats);
 819         int (*handle_disassoc) (struct net_device * dev,
 820                                 struct libipw_disassoc * assoc);
 821         int (*handle_beacon) (struct net_device * dev,
 822                               struct libipw_beacon * beacon,
 823                               struct libipw_network * network);
 824         int (*handle_probe_response) (struct net_device * dev,
 825                                       struct libipw_probe_response * resp,
 826                                       struct libipw_network * network);
 827         int (*handle_probe_request) (struct net_device * dev,
 828                                      struct libipw_probe_request * req,
 829                                      struct libipw_rx_stats * stats);
 830         int (*handle_assoc_response) (struct net_device * dev,
 831                                       struct libipw_assoc_response * resp,
 832                                       struct libipw_network * network);
 833
 834         /* Typical AP methods */
 835         int (*handle_assoc_request) (struct net_device * dev);
 836         int (*handle_reassoc_request) (struct net_device * dev,
 837                                        struct libipw_reassoc_request * req);
 838
 839         /* This must be the last item so that it points to the data
 840          * allocated beyond this structure by alloc_libipw */
 841         u8 priv[0];
 842 };
 843
 844 #define IEEE_A            (1<<0)
 845 #define IEEE_B            (1<<1)
 846 #define IEEE_G            (1<<2)
 847 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
 848
 849 static inline void *libipw_priv(struct net_device *dev)
 850 {
 851         return ((struct libipw_device *)netdev_priv(dev))->priv;
 852 }
 853
 854 static inline int libipw_is_valid_mode(struct libipw_device *ieee,
 855                                           int mode)
 856 {
 857         /*
 858          * It is possible for both access points and our device to support
 859          * combinations of modes, so as long as there is one valid combination
 860          * of ap/device supported modes, then return success
 861          *
 862          */
 863         if ((mode & IEEE_A) &&
 864             (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
 865             (ieee->freq_band & LIBIPW_52GHZ_BAND))
 866                 return 1;
 867
 868         if ((mode & IEEE_G) &&
 869             (ieee->modulation & LIBIPW_OFDM_MODULATION) &&
 870             (ieee->freq_band & LIBIPW_24GHZ_BAND))
 871                 return 1;
 872
 873         if ((mode & IEEE_B) &&
 874             (ieee->modulation & LIBIPW_CCK_MODULATION) &&
 875             (ieee->freq_band & LIBIPW_24GHZ_BAND))
 876                 return 1;
 877
 878         return 0;
 879 }
 880
 881 static inline int libipw_get_hdrlen(u16 fc)
 882 {
 883         int hdrlen = LIBIPW_3ADDR_LEN;
 884         u16 stype = WLAN_FC_GET_STYPE(fc);
 885
 886         switch (WLAN_FC_GET_TYPE(fc)) {
 887         case IEEE80211_FTYPE_DATA:
 888                 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
 889                         hdrlen = LIBIPW_4ADDR_LEN;
 890                 if (stype & IEEE80211_STYPE_QOS_DATA)
 891                         hdrlen += 2;
 892                 break;
 893         case IEEE80211_FTYPE_CTL:
 894                 switch (WLAN_FC_GET_STYPE(fc)) {
 895                 case IEEE80211_STYPE_CTS:
 896                 case IEEE80211_STYPE_ACK:
 897                         hdrlen = LIBIPW_1ADDR_LEN;
 898                         break;
 899                 default:
 900                         hdrlen = LIBIPW_2ADDR_LEN;
 901                         break;
 902                 }
 903                 break;
 904         }
 905
 906         return hdrlen;
 907 }
 908
 909 static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
 910 {
 911         switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
 912         case LIBIPW_1ADDR_LEN:
 913                 return ((struct libipw_hdr_1addr *)hdr)->payload;
 914         case LIBIPW_2ADDR_LEN:
 915                 return ((struct libipw_hdr_2addr *)hdr)->payload;
 916         case LIBIPW_3ADDR_LEN:
 917                 return ((struct libipw_hdr_3addr *)hdr)->payload;
 918         case LIBIPW_4ADDR_LEN:
 919                 return ((struct libipw_hdr_4addr *)hdr)->payload;
 920         }
 921         return NULL;
 922 }
 923
 924 static inline int libipw_is_ofdm_rate(u8 rate)
 925 {
 926         switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
 927         case LIBIPW_OFDM_RATE_6MB:
 928         case LIBIPW_OFDM_RATE_9MB:
 929         case LIBIPW_OFDM_RATE_12MB:
 930         case LIBIPW_OFDM_RATE_18MB:
 931         case LIBIPW_OFDM_RATE_24MB:
 932         case LIBIPW_OFDM_RATE_36MB:
 933         case LIBIPW_OFDM_RATE_48MB:
 934         case LIBIPW_OFDM_RATE_54MB:
 935                 return 1;
 936         }
 937         return 0;
 938 }
 939
 940 static inline int libipw_is_cck_rate(u8 rate)
 941 {
 942         switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
 943         case LIBIPW_CCK_RATE_1MB:
 944         case LIBIPW_CCK_RATE_2MB:
 945         case LIBIPW_CCK_RATE_5MB:
 946         case LIBIPW_CCK_RATE_11MB:
 947                 return 1;
 948         }
 949         return 0;
 950 }
 951
 952 /* libipw.c */
 953 extern void free_libipw(struct net_device *dev, int monitor);
 954 extern struct net_device *alloc_libipw(int sizeof_priv, int monitor);
 955 extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
 956
 957 extern void libipw_networks_age(struct libipw_device *ieee,
 958                                    unsigned long age_secs);
 959
 960 extern int libipw_set_encryption(struct libipw_device *ieee);
 961
 962 /* libipw_tx.c */
 963 extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
 964                                struct net_device *dev);
 965 extern void libipw_txb_free(struct libipw_txb *);
 966
 967 /* libipw_rx.c */
 968 extern void libipw_rx_any(struct libipw_device *ieee,
 969                      struct sk_buff *skb, struct libipw_rx_stats *stats);
 970 extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
 971                         struct libipw_rx_stats *rx_stats);
 972 /* make sure to set stats->len */
 973 extern void libipw_rx_mgt(struct libipw_device *ieee,
 974                              struct libipw_hdr_4addr *header,
 975                              struct libipw_rx_stats *stats);
 976 extern void libipw_network_reset(struct libipw_network *network);
 977
 978 /* libipw_geo.c */
 979 extern const struct libipw_geo *libipw_get_geo(struct libipw_device
 980                                                      *ieee);
 981 extern void libipw_set_geo(struct libipw_device *ieee,
 982                              const struct libipw_geo *geo);
 983
 984 extern int libipw_is_valid_channel(struct libipw_device *ieee,
 985                                       u8 channel);
 986 extern int libipw_channel_to_index(struct libipw_device *ieee,
 987                                       u8 channel);
 988 extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
 989 extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
 990                                       u8 channel);
 991 extern const struct libipw_channel *libipw_get_channel(struct
 992                                                              libipw_device
 993                                                              *ieee, u8 channel);
 994 extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
 995                                       u8 channel);
 996
 997 /* libipw_wx.c */
 998 extern int libipw_wx_get_scan(struct libipw_device *ieee,
 999                                  struct iw_request_info *info,
1000                                  union iwreq_data *wrqu, char *key);
1001 extern int libipw_wx_set_encode(struct libipw_device *ieee,
1002                                    struct iw_request_info *info,
1003                                    union iwreq_data *wrqu, char *key);
1004 extern int libipw_wx_get_encode(struct libipw_device *ieee,
1005                                    struct iw_request_info *info,
1006                                    union iwreq_data *wrqu, char *key);
1007 extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
1008                                       struct iw_request_info *info,
1009                                       union iwreq_data *wrqu, char *extra);
1010 extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
1011                                       struct iw_request_info *info,
1012                                       union iwreq_data *wrqu, char *extra);
1013
1014 static inline void libipw_increment_scans(struct libipw_device *ieee)
1015 {
1016         ieee->scans++;
1017 }
1018
1019 static inline int libipw_get_scans(struct libipw_device *ieee)
1020 {
1021         return ieee->scans;
1022 }
1023
1024 #endif                          /* LIBIPW_H */