drivers/staging/rtl8712/ieee80211.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Modifications for inclusion into the Linux staging tree are
  18  * Copyright(c) 2010 Larry Finger. All rights reserved.
  19  *
  20  * Contact information:
  21  * WLAN FAE <wlanfae@realtek.com>
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  ******************************************************************************/
  25 #ifndef __IEEE80211_H
  26 #define __IEEE80211_H
  27
  28 #include "osdep_service.h"
  29 #include "drv_types.h"
  30 #include "wifi.h"
  31 #include <linux/compiler.h>
  32 #include <linux/wireless.h>
  33
  34 #define MGMT_QUEUE_NUM 5
  35 #define ETH_ALEN        6
  36 #define IEEE_CMD_SET_WPA_PARAM                  1
  37 #define IEEE_CMD_SET_WPA_IE                     2
  38 #define IEEE_CMD_SET_ENCRYPTION                 3
  39 #define IEEE_CMD_MLME                           4
  40
  41 #define IEEE_PARAM_WPA_ENABLED                  1
  42 #define IEEE_PARAM_TKIP_COUNTERMEASURES         2
  43 #define IEEE_PARAM_DROP_UNENCRYPTED             3
  44 #define IEEE_PARAM_PRIVACY_INVOKED              4
  45 #define IEEE_PARAM_AUTH_ALGS                    5
  46 #define IEEE_PARAM_IEEE_802_1X                  6
  47 #define IEEE_PARAM_WPAX_SELECT                  7
  48
  49 #define AUTH_ALG_OPEN_SYSTEM                    0x1
  50 #define AUTH_ALG_SHARED_KEY                     0x2
  51 #define AUTH_ALG_LEAP                           0x00000004
  52
  53 #define IEEE_MLME_STA_DEAUTH                    1
  54 #define IEEE_MLME_STA_DISASSOC                  2
  55
  56 #define IEEE_CRYPT_ERR_UNKNOWN_ALG              2
  57 #define IEEE_CRYPT_ERR_UNKNOWN_ADDR             3
  58 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED        4
  59 #define IEEE_CRYPT_ERR_KEY_SET_FAILED           5
  60 #define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED        6
  61 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED         7
  62
  63 #define IEEE_CRYPT_ALG_NAME_LEN                 16
  64
  65 #define WPA_CIPHER_NONE                         BIT(0)
  66 #define WPA_CIPHER_WEP40                        BIT(1)
  67 #define WPA_CIPHER_WEP104                       BIT(2)
  68 #define WPA_CIPHER_TKIP                         BIT(3)
  69 #define WPA_CIPHER_CCMP                         BIT(4)
  70
  71 #define WPA_SELECTOR_LEN                        4
  72 #define RSN_HEADER_LEN                          4
  73
  74 #define RSN_SELECTOR_LEN 4
  75
  76 enum NETWORK_TYPE {
  77         WIRELESS_INVALID        = 0,
  78         WIRELESS_11B            = 1,
  79         WIRELESS_11G            = 2,
  80         WIRELESS_11BG           = (WIRELESS_11B | WIRELESS_11G),
  81         WIRELESS_11A            = 4,
  82         WIRELESS_11N            = 8,
  83         WIRELESS_11GN           = (WIRELESS_11G | WIRELESS_11N),
  84         WIRELESS_11BGN          = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
  85 };
  86
  87 struct ieee_param {
  88         u32 cmd;
  89         u8 sta_addr[ETH_ALEN];
  90         union {
  91                 struct {
  92                         u8 name;
  93                         u32 value;
  94                 } wpa_param;
  95                 struct {
  96                         u32 len;
  97                         u8 reserved[32];
  98                         u8 data[0];
  99                 } wpa_ie;
 100                 struct {
 101                         int command;
 102                         int reason_code;
 103                 } mlme;
 104                 struct {
 105                         u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
 106                         u8 set_tx;
 107                         u32 err;
 108                         u8 idx;
 109                         u8 seq[8]; /* sequence counter (set: RX, get: TX) */
 110                         u16 key_len;
 111                         u8 key[0];
 112                 } crypt;
 113         } u;
 114 };
 115
 116 #define IEEE80211_DATA_LEN              2304
 117 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 118  * 6.2.1.1.2.
 119  *
 120  * The figure in section 7.1.2 suggests a body size of up to 2312
 121  * bytes is allowed, which is a bit confusing, I suspect this
 122  * represents the 2304 bytes of real data, plus a possible 8 bytes of
 123  * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
 124  */
 125
 126 #define IEEE80211_HLEN                  30
 127 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 128
 129 /* this is stolen from ipw2200 driver */
 130 #define IEEE_IBSS_MAC_HASH_SIZE 31
 131
 132 struct ieee_ibss_seq {
 133         u8 mac[ETH_ALEN];
 134         u16 seq_num;
 135         u16 frag_num;
 136         unsigned long packet_time;
 137         struct list_head list;
 138 };
 139
 140 struct ieee80211_hdr {
 141         __le16 frame_ctl;
 142         __le16 duration_id;
 143         u8 addr1[ETH_ALEN];
 144         u8 addr2[ETH_ALEN];
 145         u8 addr3[ETH_ALEN];
 146         __le16 seq_ctl;
 147         u8 addr4[ETH_ALEN];
 148 }  __packed __aligned(2);
 149
 150 struct ieee80211_hdr_3addr {
 151         __le16 frame_ctl;
 152         __le16 duration_id;
 153         u8 addr1[ETH_ALEN];
 154         u8 addr2[ETH_ALEN];
 155         u8 addr3[ETH_ALEN];
 156         __le16 seq_ctl;
 157 }  __packed __aligned(2);
 158
 159 struct  ieee80211_hdr_qos {
 160         __le16 frame_ctl;
 161         __le16 duration_id;
 162         u8 addr1[ETH_ALEN];
 163         u8 addr2[ETH_ALEN];
 164         u8 addr3[ETH_ALEN];
 165         __le16 seq_ctl;
 166         u8 addr4[ETH_ALEN];
 167         __le16  qc;
 168 }   __packed __aligned(2);
 169
 170 struct  ieee80211_hdr_3addr_qos {
 171         __le16 frame_ctl;
 172         __le16 duration_id;
 173         u8  addr1[ETH_ALEN];
 174         u8  addr2[ETH_ALEN];
 175         u8  addr3[ETH_ALEN];
 176         __le16 seq_ctl;
 177         __le16 qc;
 178 }  __packed;
 179
 180 struct eapol {
 181         u8 snap[6];
 182         __be16 ethertype;
 183         u8 version;
 184         u8 type;
 185         __le16 length;
 186 } __packed;
 187
 188 enum eap_type {
 189         EAP_PACKET = 0,
 190         EAPOL_START,
 191         EAPOL_LOGOFF,
 192         EAPOL_KEY,
 193         EAPOL_ENCAP_ASF_ALERT
 194 };
 195
 196 #define IEEE80211_3ADDR_LEN 24
 197 #define IEEE80211_4ADDR_LEN 30
 198 #define IEEE80211_FCS_LEN    4
 199
 200 #define MIN_FRAG_THRESHOLD     256U
 201 #define MAX_FRAG_THRESHOLD     2346U
 202
 203 /* Frame control field constants */
 204 #define IEEE80211_FCTL_VERS             0x0002
 205 #define IEEE80211_FCTL_FTYPE            0x000c
 206 #define IEEE80211_FCTL_STYPE            0x00f0
 207 #define IEEE80211_FCTL_TODS             0x0100
 208 #define IEEE80211_FCTL_FROMDS           0x0200
 209 #define IEEE80211_FCTL_MOREFRAGS        0x0400
 210 #define IEEE80211_FCTL_RETRY            0x0800
 211 #define IEEE80211_FCTL_PM               0x1000
 212 #define IEEE80211_FCTL_MOREDATA 0x2000
 213 #define IEEE80211_FCTL_WEP              0x4000
 214 #define IEEE80211_FCTL_ORDER            0x8000
 215
 216 #define IEEE80211_FTYPE_MGMT            0x0000
 217 #define IEEE80211_FTYPE_CTL             0x0004
 218 #define IEEE80211_FTYPE_DATA            0x0008
 219
 220 /* management */
 221 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
 222 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
 223 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
 224 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
 225 #define IEEE80211_STYPE_PROBE_REQ       0x0040
 226 #define IEEE80211_STYPE_PROBE_RESP      0x0050
 227 #define IEEE80211_STYPE_BEACON          0x0080
 228 #define IEEE80211_STYPE_ATIM            0x0090
 229 #define IEEE80211_STYPE_DISASSOC        0x00A0
 230 #define IEEE80211_STYPE_AUTH            0x00B0
 231 #define IEEE80211_STYPE_DEAUTH          0x00C0
 232
 233 /* control */
 234 #define IEEE80211_STYPE_PSPOLL          0x00A0
 235 #define IEEE80211_STYPE_RTS             0x00B0
 236 #define IEEE80211_STYPE_CTS             0x00C0
 237 #define IEEE80211_STYPE_ACK             0x00D0
 238 #define IEEE80211_STYPE_CFEND           0x00E0
 239 #define IEEE80211_STYPE_CFENDACK        0x00F0
 240
 241 /* data */
 242 #define IEEE80211_STYPE_DATA            0x0000
 243 #define IEEE80211_STYPE_DATA_CFACK      0x0010
 244 #define IEEE80211_STYPE_DATA_CFPOLL     0x0020
 245 #define IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
 246 #define IEEE80211_STYPE_NULLFUNC        0x0040
 247 #define IEEE80211_STYPE_CFACK           0x0050
 248 #define IEEE80211_STYPE_CFPOLL          0x0060
 249 #define IEEE80211_STYPE_CFACKPOLL       0x0070
 250 #define IEEE80211_QOS_DATAGRP           0x0080
 251
 252 #define IEEE80211_SCTL_FRAG             0x000F
 253 #define IEEE80211_SCTL_SEQ              0xFFF0
 254
 255 /* QoS,QOS */
 256 #define NORMAL_ACK                      0
 257 #define NO_ACK                          1
 258 #define NON_EXPLICIT_ACK        2
 259 #define BLOCK_ACK                       3
 260
 261 #ifndef ETH_P_PAE
 262 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
 263 #endif /* ETH_P_PAE */
 264
 265 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
 266
 267 #define ETH_P_ECONET    0x0018
 268
 269 #ifndef ETH_P_80211_RAW
 270 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 271 #endif
 272
 273 /* IEEE 802.11 defines */
 274
 275 #define P80211_OUI_LEN 3
 276
 277 struct ieee80211_snap_hdr {
 278         u8    dsap;   /* always 0xAA */
 279         u8    ssap;   /* always 0xAA */
 280         u8    ctrl;   /* always 0x03 */
 281         u8    oui[P80211_OUI_LEN];    /* organizational universal id */
 282 } __packed;
 283
 284 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 285
 286 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
 287 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
 288
 289 #define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
 290
 291 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
 292 #define WLAN_GET_SEQ_SEQ(seq)  ((seq) & IEEE80211_SCTL_SEQ)
 293
 294 /* Authentication algorithms */
 295 #define WLAN_AUTH_OPEN 0
 296 #define WLAN_AUTH_SHARED_KEY 1
 297
 298 #define WLAN_AUTH_CHALLENGE_LEN 128
 299
 300 #define WLAN_CAPABILITY_BSS BIT(0)
 301 #define WLAN_CAPABILITY_IBSS BIT(1)
 302 #define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
 303 #define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
 304 #define WLAN_CAPABILITY_PRIVACY BIT(4)
 305 #define WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5)
 306 #define WLAN_CAPABILITY_PBCC BIT(6)
 307 #define WLAN_CAPABILITY_CHANNEL_AGILITY BIT(7)
 308 #define WLAN_CAPABILITY_SHORT_SLOT BIT(10)
 309
 310 /* Information Element IDs */
 311 #define WLAN_EID_SSID 0
 312 #define WLAN_EID_SUPP_RATES 1
 313 #define WLAN_EID_FH_PARAMS 2
 314 #define WLAN_EID_DS_PARAMS 3
 315 #define WLAN_EID_CF_PARAMS 4
 316 #define WLAN_EID_TIM 5
 317 #define WLAN_EID_IBSS_PARAMS 6
 318 #define WLAN_EID_CHALLENGE 16
 319 #define WLAN_EID_RSN 48
 320 #define WLAN_EID_GENERIC 221
 321
 322 #define IEEE80211_MGMT_HDR_LEN 24
 323 #define IEEE80211_DATA_HDR3_LEN 24
 324 #define IEEE80211_DATA_HDR4_LEN 30
 325
 326 #define IEEE80211_STATMASK_SIGNAL BIT(0)
 327 #define IEEE80211_STATMASK_RSSI BIT(1)
 328 #define IEEE80211_STATMASK_NOISE BIT(2)
 329 #define IEEE80211_STATMASK_RATE BIT(3)
 330 #define IEEE80211_STATMASK_WEMASK 0x7
 331
 332 #define IEEE80211_CCK_MODULATION    BIT(0)
 333 #define IEEE80211_OFDM_MODULATION   BIT(1)
 334
 335 #define IEEE80211_24GHZ_BAND     BIT(0)
 336 #define IEEE80211_52GHZ_BAND     BIT(1)
 337
 338 #define IEEE80211_CCK_RATE_LEN                  4
 339 #define IEEE80211_NUM_OFDM_RATESLEN     8
 340
 341 #define IEEE80211_CCK_RATE_1MB                  0x02
 342 #define IEEE80211_CCK_RATE_2MB                  0x04
 343 #define IEEE80211_CCK_RATE_5MB                  0x0B
 344 #define IEEE80211_CCK_RATE_11MB                 0x16
 345 #define IEEE80211_OFDM_RATE_LEN                 8
 346 #define IEEE80211_OFDM_RATE_6MB                 0x0C
 347 #define IEEE80211_OFDM_RATE_9MB                 0x12
 348 #define IEEE80211_OFDM_RATE_12MB                0x18
 349 #define IEEE80211_OFDM_RATE_18MB                0x24
 350 #define IEEE80211_OFDM_RATE_24MB                0x30
 351 #define IEEE80211_OFDM_RATE_36MB                0x48
 352 #define IEEE80211_OFDM_RATE_48MB                0x60
 353 #define IEEE80211_OFDM_RATE_54MB                0x6C
 354 #define IEEE80211_BASIC_RATE_MASK               0x80
 355
 356 #define IEEE80211_CCK_RATE_1MB_MASK             BIT(0)
 357 #define IEEE80211_CCK_RATE_2MB_MASK             BIT(1)
 358 #define IEEE80211_CCK_RATE_5MB_MASK             BIT(2)
 359 #define IEEE80211_CCK_RATE_11MB_MASK            BIT(3)
 360 #define IEEE80211_OFDM_RATE_6MB_MASK            BIT(4)
 361 #define IEEE80211_OFDM_RATE_9MB_MASK            BIT(5)
 362 #define IEEE80211_OFDM_RATE_12MB_MASK           BIT(6)
 363 #define IEEE80211_OFDM_RATE_18MB_MASK           BIT(7)
 364 #define IEEE80211_OFDM_RATE_24MB_MASK           BIT(8)
 365 #define IEEE80211_OFDM_RATE_36MB_MASK           BIT(9)
 366 #define IEEE80211_OFDM_RATE_48MB_MASK           BIT(10)
 367 #define IEEE80211_OFDM_RATE_54MB_MASK           BIT(11)
 368
 369 #define IEEE80211_CCK_RATES_MASK                0x0000000F
 370 #define IEEE80211_CCK_BASIC_RATES_MASK          (IEEE80211_CCK_RATE_1MB_MASK | \
 371         IEEE80211_CCK_RATE_2MB_MASK)
 372 #define IEEE80211_CCK_DEFAULT_RATES_MASK   (IEEE80211_CCK_BASIC_RATES_MASK | \
 373                                            IEEE80211_CCK_RATE_5MB_MASK | \
 374                                            IEEE80211_CCK_RATE_11MB_MASK)
 375
 376 #define IEEE80211_OFDM_RATES_MASK               0x00000FF0
 377 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
 378         IEEE80211_OFDM_RATE_12MB_MASK | \
 379         IEEE80211_OFDM_RATE_24MB_MASK)
 380 #define IEEE80211_OFDM_DEFAULT_RATES_MASK  (IEEE80211_OFDM_BASIC_RATES_MASK | \
 381                                            IEEE80211_OFDM_RATE_9MB_MASK  | \
 382                                            IEEE80211_OFDM_RATE_18MB_MASK | \
 383                                            IEEE80211_OFDM_RATE_36MB_MASK | \
 384                                            IEEE80211_OFDM_RATE_48MB_MASK | \
 385                                            IEEE80211_OFDM_RATE_54MB_MASK)
 386 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
 387                                      IEEE80211_CCK_DEFAULT_RATES_MASK)
 388
 389 #define IEEE80211_NUM_OFDM_RATES            8
 390 #define IEEE80211_NUM_CCK_RATES             4
 391 #define IEEE80211_OFDM_SHIFT_MASK_A         4
 392
 393 /* NOTE: This data is for statistical purposes; not all hardware provides this
 394  *       information for frames received.  Not setting these will not cause
 395  *       any adverse affects.
 396  */
 397 struct ieee80211_rx_stats {
 398         s8 rssi;
 399         u8 signal;
 400         u8 noise;
 401         u8 received_channel;
 402         u16 rate; /* in 100 kbps */
 403         u8 mask;
 404         u8 freq;
 405         u16 len;
 406 };
 407
 408 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 409  * three fragmented frames. This define can be increased to support more
 410  * concurrent frames, but it should be noted that each entry can consume about
 411  * 2 kB of RAM and increasing cache size will slow down frame reassembly.
 412  */
 413 #define IEEE80211_FRAG_CACHE_LEN 4
 414
 415 struct ieee80211_frag_entry {
 416         u32 first_frag_time;
 417         uint seq;
 418         uint last_frag;
 419         uint qos;   /*jackson*/
 420         uint tid;       /*jackson*/
 421         struct sk_buff *skb;
 422         u8 src_addr[ETH_ALEN];
 423         u8 dst_addr[ETH_ALEN];
 424 };
 425
 426 struct ieee80211_stats {
 427         uint tx_unicast_frames;
 428         uint tx_multicast_frames;
 429         uint tx_fragments;
 430         uint tx_unicast_octets;
 431         uint tx_multicast_octets;
 432         uint tx_deferred_transmissions;
 433         uint tx_single_retry_frames;
 434         uint tx_multiple_retry_frames;
 435         uint tx_retry_limit_exceeded;
 436         uint tx_discards;
 437         uint rx_unicast_frames;
 438         uint rx_multicast_frames;
 439         uint rx_fragments;
 440         uint rx_unicast_octets;
 441         uint rx_multicast_octets;
 442         uint rx_fcs_errors;
 443         uint rx_discards_no_buffer;
 444         uint tx_discards_wrong_sa;
 445         uint rx_discards_undecryptable;
 446         uint rx_message_in_msg_fragments;
 447         uint rx_message_in_bad_msg_fragments;
 448 };
 449
 450 struct ieee80211_softmac_stats {
 451         uint rx_ass_ok;
 452         uint rx_ass_err;
 453         uint rx_probe_rq;
 454         uint tx_probe_rs;
 455         uint tx_beacons;
 456         uint rx_auth_rq;
 457         uint rx_auth_rs_ok;
 458         uint rx_auth_rs_err;
 459         uint tx_auth_rq;
 460         uint no_auth_rs;
 461         uint no_ass_rs;
 462         uint tx_ass_rq;
 463         uint rx_ass_rq;
 464         uint tx_probe_rq;
 465         uint reassoc;
 466         uint swtxstop;
 467         uint swtxawake;
 468 };
 469
 470 #define SEC_KEY_1         BIT(0)
 471 #define SEC_KEY_2         BIT(1)
 472 #define SEC_KEY_3         BIT(2)
 473 #define SEC_KEY_4         BIT(3)
 474 #define SEC_ACTIVE_KEY    BIT(4)
 475 #define SEC_AUTH_MODE     BIT(5)
 476 #define SEC_UNICAST_GROUP BIT(6)
 477 #define SEC_LEVEL         BIT(7)
 478 #define SEC_ENABLED       BIT(8)
 479
 480 #define SEC_LEVEL_0      0 /* None */
 481 #define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
 482 #define SEC_LEVEL_2      2 /* Level 1 + TKIP */
 483 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
 484 #define SEC_LEVEL_3      4 /* Level 2 + CCMP */
 485
 486 #define WEP_KEYS 4
 487 #define WEP_KEY_LEN 13
 488
 489 struct ieee80211_security {
 490         u16 active_key:2,
 491             enabled:1,
 492             auth_mode:2,
 493             auth_algo:4,
 494             unicast_uses_group:1;
 495         u8 key_sizes[WEP_KEYS];
 496         u8 keys[WEP_KEYS][WEP_KEY_LEN];
 497         u8 level;
 498         u16 flags;
 499 } __packed;
 500
 501 /*
 502  *
 503  * 802.11 data frame from AP
 504  *
 505  *       ,-------------------------------------------------------------------.
 506  * Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
 507  *       |------|------|---------|---------|---------|------|---------|------|
 508  * Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
 509  *       |      | tion | (BSSID) |         |         | ence |  data   |      |
 510  *       `-------------------------------------------------------------------'
 511  *
 512  * Total: 28-2340 bytes
 513  *
 514  */
 515
 516 struct ieee80211_header_data {
 517         __le16 frame_ctl;
 518         __le16 duration_id;
 519         u8 addr1[6];
 520         u8 addr2[6];
 521         u8 addr3[6];
 522         __le16 seq_ctrl;
 523 } __packed __aligned(2);
 524
 525 #define BEACON_PROBE_SSID_ID_POSITION 12
 526
 527 /* Management Frame Information Element Types */
 528 #define MFIE_TYPE_SSID       0
 529 #define MFIE_TYPE_RATES      1
 530 #define MFIE_TYPE_FH_SET     2
 531 #define MFIE_TYPE_DS_SET     3
 532 #define MFIE_TYPE_CF_SET     4
 533 #define MFIE_TYPE_TIM        5
 534 #define MFIE_TYPE_IBSS_SET   6
 535 #define MFIE_TYPE_CHALLENGE  16
 536 #define MFIE_TYPE_ERP        42
 537 #define MFIE_TYPE_RSN        48
 538 #define MFIE_TYPE_RATES_EX   50
 539 #define MFIE_TYPE_GENERIC    221
 540
 541 struct ieee80211_info_element_hdr {
 542         u8 id;
 543         u8 len;
 544 } __packed;
 545
 546 struct ieee80211_info_element {
 547         u8 id;
 548         u8 len;
 549         u8 data[0];
 550 } __packed;
 551
 552 /*
 553  * These are the data types that can make up management packets
 554  *
 555         __le16 auth_algorithm;
 556         __le16 auth_sequence;
 557         __le16 beacon_interval;
 558         __le16 capability;
 559         u8 current_ap[ETH_ALEN];
 560         __le16 listen_interval;
 561         struct {
 562                 u16 association_id:14, reserved:2;
 563         } __packed;
 564         __le32 time_stamp[2];
 565         __le16 reason;
 566         __le16 status;
 567 */
 568
 569 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
 570 #define IEEE80211_DEFAULT_BASIC_RATE 10
 571
 572 struct ieee80211_authentication {
 573         struct ieee80211_header_data header;
 574         __le16 algorithm;
 575         __le16 transaction;
 576         __le16 status;
 577 } __packed;
 578
 579 struct ieee80211_probe_response {
 580         struct ieee80211_header_data header;
 581         __le32 time_stamp[2];
 582         __le16 beacon_interval;
 583         __le16 capability;
 584         struct ieee80211_info_element info_element;
 585 } __packed;
 586
 587 struct ieee80211_probe_request {
 588         struct ieee80211_header_data header;
 589 } __packed;
 590
 591 struct ieee80211_assoc_request_frame {
 592         struct ieee80211_hdr_3addr header;
 593         __le16 capability;
 594         __le16 listen_interval;
 595         struct ieee80211_info_element_hdr info_element;
 596 } __packed;
 597
 598 struct ieee80211_assoc_response_frame {
 599         struct ieee80211_hdr_3addr header;
 600         __le16 capability;
 601         __le16 status;
 602         __le16 aid;
 603 } __packed;
 604
 605 struct ieee80211_txb {
 606         u8 nr_frags;
 607         u8 encrypted;
 608         u16 reserved;
 609         u16 frag_size;
 610         u16 payload_size;
 611         struct sk_buff *fragments[0];
 612 };
 613
 614 /* SWEEP TABLE ENTRIES NUMBER*/
 615 #define MAX_SWEEP_TAB_ENTRIES             42
 616 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 617 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 618  * only use 8, and then use extended rates for the remaining supported
 619  * rates.  Other APs, however, stick all of their supported rates on the
 620  * main rates information element...
 621  */
 622 #define MAX_RATES_LENGTH                  ((u8)12)
 623 #define MAX_RATES_EX_LENGTH               ((u8)16)
 624 #define MAX_NETWORK_COUNT                  128
 625 #define MAX_CHANNEL_NUMBER                 161
 626 #define IEEE80211_SOFTMAC_SCAN_TIME       400
 627 /*(HZ / 2)*/
 628 #define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
 629
 630 #define CRC_LENGTH                 4U
 631
 632 #define MAX_WPA_IE_LEN 128
 633
 634 #define NETWORK_EMPTY_ESSID BIT(0)
 635 #define NETWORK_HAS_OFDM    BIT(1)
 636 #define NETWORK_HAS_CCK     BIT(2)
 637
 638 #define IEEE80211_DTIM_MBCAST 4
 639 #define IEEE80211_DTIM_UCAST 2
 640 #define IEEE80211_DTIM_VALID 1
 641 #define IEEE80211_DTIM_INVALID 0
 642
 643 #define IEEE80211_PS_DISABLED 0
 644 #define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
 645 #define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
 646 #define IW_ESSID_MAX_SIZE 32
 647 /*
 648  * join_res:
 649  * -1: authentication fail
 650  * -2: association fail
 651  * > 0: TID
 652  */
 653
 654 enum ieee80211_state {
 655         /* the card is not linked at all */
 656         IEEE80211_NOLINK = 0,
 657         /* IEEE80211_ASSOCIATING* are for BSS client mode
 658          * the driver shall not perform RX filtering unless
 659          * the state is LINKED.
 660          * The driver shall just check for the state LINKED and
 661          * defaults to NOLINK for ALL the other states (including
 662          * LINKED_SCANNING)
 663          */
 664         /* the association procedure will start (wq scheduling)*/
 665         IEEE80211_ASSOCIATING,
 666         IEEE80211_ASSOCIATING_RETRY,
 667         /* the association procedure is sending AUTH request*/
 668         IEEE80211_ASSOCIATING_AUTHENTICATING,
 669         /* the association procedure has successfully authenticated
 670          * and is sending association request
 671          */
 672         IEEE80211_ASSOCIATING_AUTHENTICATED,
 673         /* the link is ok. the card associated to a BSS or linked
 674          * to a ibss cell or acting as an AP and creating the bss
 675          */
 676         IEEE80211_LINKED,
 677         /* same as LINKED, but the driver shall apply RX filter
 678          * rules as we are in NO_LINK mode. As the card is still
 679          * logically linked, but it is doing a syncro site survey
 680          * then it will be back to LINKED state.
 681          */
 682         IEEE80211_LINKED_SCANNING,
 683 };
 684
 685 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 686 #define DEFAULT_FTS 2346
 687
 688 #define CFG_IEEE80211_RESERVE_FCS BIT(0)
 689 #define CFG_IEEE80211_COMPUTE_FCS BIT(1)
 690
 691 #define MAXTID  16
 692
 693 #define IEEE_A            BIT(0)
 694 #define IEEE_B            BIT(1)
 695 #define IEEE_G            BIT(2)
 696 #define IEEE_MODE_MASK    (IEEE_A | IEEE_B | IEEE_G)
 697
 698 static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
 699 {
 700         /* Single white space is for Linksys APs */
 701         if (essid_len == 1 && essid[0] == ' ')
 702                 return 1;
 703         /* Otherwise, if the entire essid is 0, we assume it is hidden */
 704         while (essid_len) {
 705                 essid_len--;
 706                 if (essid[essid_len] != '\0')
 707                         return 0;
 708         }
 709         return 1;
 710 }
 711
 712 static inline int ieee80211_get_hdrlen(u16 fc)
 713 {
 714         int hdrlen = 24;
 715
 716         switch (WLAN_FC_GET_TYPE(fc)) {
 717         case IEEE80211_FTYPE_DATA:
 718                 if (fc & IEEE80211_QOS_DATAGRP)
 719                         hdrlen += 2;
 720                 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
 721                         hdrlen += 6; /* Addr4 */
 722                 break;
 723         case IEEE80211_FTYPE_CTL:
 724                 switch (WLAN_FC_GET_STYPE(fc)) {
 725                 case IEEE80211_STYPE_CTS:
 726                 case IEEE80211_STYPE_ACK:
 727                         hdrlen = 10;
 728                         break;
 729                 default:
 730                         hdrlen = 16;
 731                         break;
 732                 }
 733                 break;
 734         }
 735         return hdrlen;
 736 }
 737
 738 struct registry_priv;
 739
 740 u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
 741 u8 *r8712_get_ie(u8 *pbuf, sint index, sint *len, sint limit);
 742 unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *rsn_ie_len, int limit);
 743 unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len,
 744                                  int limit);
 745 int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
 746                        int *pairwise_cipher);
 747 int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
 748                         int *pairwise_cipher);
 749 int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
 750                      u8 *wpa_ie, u16 *wpa_len);
 751 int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
 752 int r8712_generate_ie(struct registry_priv *pregistrypriv);
 753 uint r8712_is_cckrates_included(u8 *rate);
 754 uint r8712_is_cckratesonly_included(u8 *rate);
 755
 756 #endif /* IEEE80211_H */
 757