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, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * Modifications for inclusion into the Linux staging tree are
  19  * Copyright(c) 2010 Larry Finger. All rights reserved.
  20  *
  21  * Contact information:
  22  * WLAN FAE <wlanfae@realtek.com>
  23  * Larry Finger <Larry.Finger@lwfinger.net>
  24  *
  25  ******************************************************************************/
  26 #ifndef __IEEE80211_H
  27 #define __IEEE80211_H
  28
  29 #include "osdep_service.h"
  30 #include "drv_types.h"
  31 #include "wifi.h"
  32 #include <linux/compiler.h>
  33 #include <linux/wireless.h>
  34
  35 #define MGMT_QUEUE_NUM 5
  36 #define ETH_ALEN        6
  37 #define IEEE_CMD_SET_WPA_PARAM                  1
  38 #define IEEE_CMD_SET_WPA_IE                     2
  39 #define IEEE_CMD_SET_ENCRYPTION                 3
  40 #define IEEE_CMD_MLME                           4
  41
  42 #define IEEE_PARAM_WPA_ENABLED                  1
  43 #define IEEE_PARAM_TKIP_COUNTERMEASURES         2
  44 #define IEEE_PARAM_DROP_UNENCRYPTED             3
  45 #define IEEE_PARAM_PRIVACY_INVOKED              4
  46 #define IEEE_PARAM_AUTH_ALGS                    5
  47 #define IEEE_PARAM_IEEE_802_1X                  6
  48 #define IEEE_PARAM_WPAX_SELECT                  7
  49
  50 #define AUTH_ALG_OPEN_SYSTEM                    0x1
  51 #define AUTH_ALG_SHARED_KEY                     0x2
  52 #define AUTH_ALG_LEAP                           0x00000004
  53
  54 #define IEEE_MLME_STA_DEAUTH                    1
  55 #define IEEE_MLME_STA_DISASSOC                  2
  56
  57 #define IEEE_CRYPT_ERR_UNKNOWN_ALG              2
  58 #define IEEE_CRYPT_ERR_UNKNOWN_ADDR             3
  59 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED        4
  60 #define IEEE_CRYPT_ERR_KEY_SET_FAILED           5
  61 #define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED        6
  62 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED         7
  63
  64
  65 #define IEEE_CRYPT_ALG_NAME_LEN                 16
  66
  67 #define WPA_CIPHER_NONE                         BIT(0)
  68 #define WPA_CIPHER_WEP40                        BIT(1)
  69 #define WPA_CIPHER_WEP104                       BIT(2)
  70 #define WPA_CIPHER_TKIP                         BIT(3)
  71 #define WPA_CIPHER_CCMP                         BIT(4)
  72
  73
  74
  75 #define WPA_SELECTOR_LEN                        4
  76 #define RSN_HEADER_LEN                          4
  77
  78 #define RSN_SELECTOR_LEN 4
  79
  80 enum NETWORK_TYPE {
  81         WIRELESS_INVALID        = 0,
  82         WIRELESS_11B            = 1,
  83         WIRELESS_11G            = 2,
  84         WIRELESS_11BG           = (WIRELESS_11B | WIRELESS_11G),
  85         WIRELESS_11A            = 4,
  86         WIRELESS_11N            = 8,
  87         WIRELESS_11GN           = (WIRELESS_11G | WIRELESS_11N),
  88         WIRELESS_11BGN          = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
  89 };
  90
  91
  92 struct ieee_param {
  93         u32 cmd;
  94         u8 sta_addr[ETH_ALEN];
  95         union {
  96                 struct {
  97                         u8 name;
  98                         u32 value;
  99                 } wpa_param;
 100                 struct {
 101                         u32 len;
 102                         u8 reserved[32];
 103                         u8 data[0];
 104                 } wpa_ie;
 105                 struct {
 106                         int command;
 107                         int reason_code;
 108                 } mlme;
 109                 struct {
 110                         u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
 111                         u8 set_tx;
 112                         u32 err;
 113                         u8 idx;
 114                         u8 seq[8]; /* sequence counter (set: RX, get: TX) */
 115                         u16 key_len;
 116                         u8 key[0];
 117                 } crypt;
 118         } u;
 119 };
 120
 121 #define IEEE80211_DATA_LEN              2304
 122 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 123    6.2.1.1.2.
 124
 125    The figure in section 7.1.2 suggests a body size of up to 2312
 126    bytes is allowed, which is a bit confusing, I suspect this
 127    represents the 2304 bytes of real data, plus a possible 8 bytes of
 128    WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
 129
 130 #define IEEE80211_HLEN                  30
 131 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 132
 133 /* this is stolen from ipw2200 driver */
 134 #define IEEE_IBSS_MAC_HASH_SIZE 31
 135
 136 struct ieee_ibss_seq {
 137         u8 mac[ETH_ALEN];
 138         u16 seq_num;
 139         u16 frag_num;
 140         unsigned long packet_time;
 141         struct list_head list;
 142 };
 143
 144 struct ieee80211_hdr {
 145         u16 frame_ctl;
 146         u16 duration_id;
 147         u8 addr1[ETH_ALEN];
 148         u8 addr2[ETH_ALEN];
 149         u8 addr3[ETH_ALEN];
 150         u16 seq_ctl;
 151         u8 addr4[ETH_ALEN];
 152 } __packed;
 153
 154 struct ieee80211_hdr_3addr {
 155         u16 frame_ctl;
 156         u16 duration_id;
 157         u8 addr1[ETH_ALEN];
 158         u8 addr2[ETH_ALEN];
 159         u8 addr3[ETH_ALEN];
 160         u16 seq_ctl;
 161 } __packed;
 162
 163
 164 struct  ieee80211_hdr_qos {
 165         u16 frame_ctl;
 166         u16 duration_id;
 167         u8 addr1[ETH_ALEN];
 168         u8 addr2[ETH_ALEN];
 169         u8 addr3[ETH_ALEN];
 170         u16 seq_ctl;
 171         u8 addr4[ETH_ALEN];
 172         u16     qc;
 173 }  __packed;
 174
 175 struct  ieee80211_hdr_3addr_qos {
 176         u16 frame_ctl;
 177         u16 duration_id;
 178         u8  addr1[ETH_ALEN];
 179         u8  addr2[ETH_ALEN];
 180         u8  addr3[ETH_ALEN];
 181         u16 seq_ctl;
 182         u16 qc;
 183 }  __packed;
 184
 185 struct eapol {
 186         u8 snap[6];
 187         u16 ethertype;
 188         u8 version;
 189         u8 type;
 190         u16 length;
 191 } __packed;
 192
 193
 194 enum eap_type {
 195         EAP_PACKET = 0,
 196         EAPOL_START,
 197         EAPOL_LOGOFF,
 198         EAPOL_KEY,
 199         EAPOL_ENCAP_ASF_ALERT
 200 };
 201
 202 #define IEEE80211_3ADDR_LEN 24
 203 #define IEEE80211_4ADDR_LEN 30
 204 #define IEEE80211_FCS_LEN    4
 205
 206 #define MIN_FRAG_THRESHOLD     256U
 207 #define MAX_FRAG_THRESHOLD     2346U
 208
 209 /* Frame control field constants */
 210 #define IEEE80211_FCTL_VERS             0x0002
 211 #define IEEE80211_FCTL_FTYPE            0x000c
 212 #define IEEE80211_FCTL_STYPE            0x00f0
 213 #define IEEE80211_FCTL_TODS             0x0100
 214 #define IEEE80211_FCTL_FROMDS           0x0200
 215 #define IEEE80211_FCTL_MOREFRAGS        0x0400
 216 #define IEEE80211_FCTL_RETRY            0x0800
 217 #define IEEE80211_FCTL_PM               0x1000
 218 #define IEEE80211_FCTL_MOREDATA 0x2000
 219 #define IEEE80211_FCTL_WEP              0x4000
 220 #define IEEE80211_FCTL_ORDER            0x8000
 221
 222 #define IEEE80211_FTYPE_MGMT            0x0000
 223 #define IEEE80211_FTYPE_CTL             0x0004
 224 #define IEEE80211_FTYPE_DATA            0x0008
 225
 226 /* management */
 227 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
 228 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
 229 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
 230 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
 231 #define IEEE80211_STYPE_PROBE_REQ       0x0040
 232 #define IEEE80211_STYPE_PROBE_RESP      0x0050
 233 #define IEEE80211_STYPE_BEACON          0x0080
 234 #define IEEE80211_STYPE_ATIM            0x0090
 235 #define IEEE80211_STYPE_DISASSOC        0x00A0
 236 #define IEEE80211_STYPE_AUTH            0x00B0
 237 #define IEEE80211_STYPE_DEAUTH          0x00C0
 238
 239 /* control */
 240 #define IEEE80211_STYPE_PSPOLL          0x00A0
 241 #define IEEE80211_STYPE_RTS             0x00B0
 242 #define IEEE80211_STYPE_CTS             0x00C0
 243 #define IEEE80211_STYPE_ACK             0x00D0
 244 #define IEEE80211_STYPE_CFEND           0x00E0
 245 #define IEEE80211_STYPE_CFENDACK        0x00F0
 246
 247 /* data */
 248 #define IEEE80211_STYPE_DATA            0x0000
 249 #define IEEE80211_STYPE_DATA_CFACK      0x0010
 250 #define IEEE80211_STYPE_DATA_CFPOLL     0x0020
 251 #define IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
 252 #define IEEE80211_STYPE_NULLFUNC        0x0040
 253 #define IEEE80211_STYPE_CFACK           0x0050
 254 #define IEEE80211_STYPE_CFPOLL          0x0060
 255 #define IEEE80211_STYPE_CFACKPOLL       0x0070
 256 #define IEEE80211_QOS_DATAGRP           0x0080
 257 #define IEEE80211_QoS_DATAGRP           IEEE80211_QOS_DATAGRP
 258
 259 #define IEEE80211_SCTL_FRAG             0x000F
 260 #define IEEE80211_SCTL_SEQ              0xFFF0
 261
 262 /* QoS,QOS */
 263 #define NORMAL_ACK                      0
 264 #define NO_ACK                          1
 265 #define NON_EXPLICIT_ACK        2
 266 #define BLOCK_ACK                       3
 267
 268 #ifndef ETH_P_PAE
 269 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
 270 #endif /* ETH_P_PAE */
 271
 272 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
 273
 274 #define ETH_P_ECONET    0x0018
 275
 276 #ifndef ETH_P_80211_RAW
 277 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
 278 #endif
 279
 280 /* IEEE 802.11 defines */
 281
 282 #define P80211_OUI_LEN 3
 283
 284 struct ieee80211_snap_hdr {
 285         u8    dsap;   /* always 0xAA */
 286         u8    ssap;   /* always 0xAA */
 287         u8    ctrl;   /* always 0x03 */
 288         u8    oui[P80211_OUI_LEN];    /* organizational universal id */
 289 } __packed;
 290
 291 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 292
 293 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
 294 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
 295
 296 #define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
 297
 298 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
 299 #define WLAN_GET_SEQ_SEQ(seq)  ((seq) & IEEE80211_SCTL_SEQ)
 300
 301 /* Authentication algorithms */
 302 #define WLAN_AUTH_OPEN 0
 303 #define WLAN_AUTH_SHARED_KEY 1
 304
 305 #define WLAN_AUTH_CHALLENGE_LEN 128
 306
 307 #define WLAN_CAPABILITY_BSS (1<<0)
 308 #define WLAN_CAPABILITY_IBSS (1<<1)
 309 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
 310 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
 311 #define WLAN_CAPABILITY_PRIVACY (1<<4)
 312 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
 313 #define WLAN_CAPABILITY_PBCC (1<<6)
 314 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
 315 #define WLAN_CAPABILITY_SHORT_SLOT (1<<10)
 316
 317 /* Status codes */
 318 #define WLAN_STATUS_SUCCESS 0
 319 #define WLAN_STATUS_UNSPECIFIED_FAILURE 1
 320 #define WLAN_STATUS_CAPS_UNSUPPORTED 10
 321 #define WLAN_STATUS_REASSOC_NO_ASSOC 11
 322 #define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
 323 #define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
 324 #define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
 325 #define WLAN_STATUS_CHALLENGE_FAIL 15
 326 #define WLAN_STATUS_AUTH_TIMEOUT 16
 327 #define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
 328 #define WLAN_STATUS_ASSOC_DENIED_RATES 18
 329 /* 802.11b */
 330 #define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
 331 #define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
 332 #define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
 333
 334 /* Reason codes */
 335 #define WLAN_REASON_UNSPECIFIED 1
 336 #define WLAN_REASON_PREV_AUTH_NOT_VALID 2
 337 #define WLAN_REASON_DEAUTH_LEAVING 3
 338 #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
 339 #define WLAN_REASON_DISASSOC_AP_BUSY 5
 340 #define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
 341 #define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
 342 #define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
 343 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
 344
 345
 346 /* Information Element IDs */
 347 #define WLAN_EID_SSID 0
 348 #define WLAN_EID_SUPP_RATES 1
 349 #define WLAN_EID_FH_PARAMS 2
 350 #define WLAN_EID_DS_PARAMS 3
 351 #define WLAN_EID_CF_PARAMS 4
 352 #define WLAN_EID_TIM 5
 353 #define WLAN_EID_IBSS_PARAMS 6
 354 #define WLAN_EID_CHALLENGE 16
 355 #define WLAN_EID_RSN 48
 356 #define WLAN_EID_GENERIC 221
 357
 358 #define IEEE80211_MGMT_HDR_LEN 24
 359 #define IEEE80211_DATA_HDR3_LEN 24
 360 #define IEEE80211_DATA_HDR4_LEN 30
 361
 362
 363 #define IEEE80211_STATMASK_SIGNAL (1<<0)
 364 #define IEEE80211_STATMASK_RSSI (1<<1)
 365 #define IEEE80211_STATMASK_NOISE (1<<2)
 366 #define IEEE80211_STATMASK_RATE (1<<3)
 367 #define IEEE80211_STATMASK_WEMASK 0x7
 368
 369
 370 #define IEEE80211_CCK_MODULATION    (1<<0)
 371 #define IEEE80211_OFDM_MODULATION   (1<<1)
 372
 373 #define IEEE80211_24GHZ_BAND     (1<<0)
 374 #define IEEE80211_52GHZ_BAND     (1<<1)
 375
 376 #define IEEE80211_CCK_RATE_LEN                  4
 377 #define IEEE80211_NUM_OFDM_RATESLEN     8
 378
 379
 380 #define IEEE80211_CCK_RATE_1MB                  0x02
 381 #define IEEE80211_CCK_RATE_2MB                  0x04
 382 #define IEEE80211_CCK_RATE_5MB                  0x0B
 383 #define IEEE80211_CCK_RATE_11MB                 0x16
 384 #define IEEE80211_OFDM_RATE_LEN                 8
 385 #define IEEE80211_OFDM_RATE_6MB                 0x0C
 386 #define IEEE80211_OFDM_RATE_9MB                 0x12
 387 #define IEEE80211_OFDM_RATE_12MB                0x18
 388 #define IEEE80211_OFDM_RATE_18MB                0x24
 389 #define IEEE80211_OFDM_RATE_24MB                0x30
 390 #define IEEE80211_OFDM_RATE_36MB                0x48
 391 #define IEEE80211_OFDM_RATE_48MB                0x60
 392 #define IEEE80211_OFDM_RATE_54MB                0x6C
 393 #define IEEE80211_BASIC_RATE_MASK               0x80
 394
 395 #define IEEE80211_CCK_RATE_1MB_MASK             (1<<0)
 396 #define IEEE80211_CCK_RATE_2MB_MASK             (1<<1)
 397 #define IEEE80211_CCK_RATE_5MB_MASK             (1<<2)
 398 #define IEEE80211_CCK_RATE_11MB_MASK            (1<<3)
 399 #define IEEE80211_OFDM_RATE_6MB_MASK            (1<<4)
 400 #define IEEE80211_OFDM_RATE_9MB_MASK            (1<<5)
 401 #define IEEE80211_OFDM_RATE_12MB_MASK           (1<<6)
 402 #define IEEE80211_OFDM_RATE_18MB_MASK           (1<<7)
 403 #define IEEE80211_OFDM_RATE_24MB_MASK           (1<<8)
 404 #define IEEE80211_OFDM_RATE_36MB_MASK           (1<<9)
 405 #define IEEE80211_OFDM_RATE_48MB_MASK           (1<<10)
 406 #define IEEE80211_OFDM_RATE_54MB_MASK           (1<<11)
 407
 408 #define IEEE80211_CCK_RATES_MASK                0x0000000F
 409 #define IEEE80211_CCK_BASIC_RATES_MASK          (IEEE80211_CCK_RATE_1MB_MASK | \
 410         IEEE80211_CCK_RATE_2MB_MASK)
 411 #define IEEE80211_CCK_DEFAULT_RATES_MASK   (IEEE80211_CCK_BASIC_RATES_MASK | \
 412                                            IEEE80211_CCK_RATE_5MB_MASK | \
 413                                            IEEE80211_CCK_RATE_11MB_MASK)
 414
 415 #define IEEE80211_OFDM_RATES_MASK               0x00000FF0
 416 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
 417         IEEE80211_OFDM_RATE_12MB_MASK | \
 418         IEEE80211_OFDM_RATE_24MB_MASK)
 419 #define IEEE80211_OFDM_DEFAULT_RATES_MASK  (IEEE80211_OFDM_BASIC_RATES_MASK | \
 420                                            IEEE80211_OFDM_RATE_9MB_MASK  | \
 421                                            IEEE80211_OFDM_RATE_18MB_MASK | \
 422                                            IEEE80211_OFDM_RATE_36MB_MASK | \
 423                                            IEEE80211_OFDM_RATE_48MB_MASK | \
 424                                            IEEE80211_OFDM_RATE_54MB_MASK)
 425 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
 426                                      IEEE80211_CCK_DEFAULT_RATES_MASK)
 427
 428 #define IEEE80211_NUM_OFDM_RATES            8
 429 #define IEEE80211_NUM_CCK_RATES             4
 430 #define IEEE80211_OFDM_SHIFT_MASK_A         4
 431
 432
 433
 434
 435 /* NOTE: This data is for statistical purposes; not all hardware provides this
 436  *       information for frames received.  Not setting these will not cause
 437  *       any adverse affects. */
 438 struct ieee80211_rx_stats {
 439         s8 rssi;
 440         u8 signal;
 441         u8 noise;
 442         u8 received_channel;
 443         u16 rate; /* in 100 kbps */
 444         u8 mask;
 445         u8 freq;
 446         u16 len;
 447 };
 448
 449 /* IEEE 802.11 requires that STA supports concurrent reception of at least
 450  * three fragmented frames. This define can be increased to support more
 451  * concurrent frames, but it should be noted that each entry can consume about
 452  * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
 453 #define IEEE80211_FRAG_CACHE_LEN 4
 454
 455 struct ieee80211_frag_entry {
 456         u32 first_frag_time;
 457         uint seq;
 458         uint last_frag;
 459         uint qos;   /*jackson*/
 460         uint tid;       /*jackson*/
 461         struct sk_buff *skb;
 462         u8 src_addr[ETH_ALEN];
 463         u8 dst_addr[ETH_ALEN];
 464 };
 465
 466 struct ieee80211_stats {
 467         uint tx_unicast_frames;
 468         uint tx_multicast_frames;
 469         uint tx_fragments;
 470         uint tx_unicast_octets;
 471         uint tx_multicast_octets;
 472         uint tx_deferred_transmissions;
 473         uint tx_single_retry_frames;
 474         uint tx_multiple_retry_frames;
 475         uint tx_retry_limit_exceeded;
 476         uint tx_discards;
 477         uint rx_unicast_frames;
 478         uint rx_multicast_frames;
 479         uint rx_fragments;
 480         uint rx_unicast_octets;
 481         uint rx_multicast_octets;
 482         uint rx_fcs_errors;
 483         uint rx_discards_no_buffer;
 484         uint tx_discards_wrong_sa;
 485         uint rx_discards_undecryptable;
 486         uint rx_message_in_msg_fragments;
 487         uint rx_message_in_bad_msg_fragments;
 488 };
 489
 490 struct ieee80211_softmac_stats {
 491         uint rx_ass_ok;
 492         uint rx_ass_err;
 493         uint rx_probe_rq;
 494         uint tx_probe_rs;
 495         uint tx_beacons;
 496         uint rx_auth_rq;
 497         uint rx_auth_rs_ok;
 498         uint rx_auth_rs_err;
 499         uint tx_auth_rq;
 500         uint no_auth_rs;
 501         uint no_ass_rs;
 502         uint tx_ass_rq;
 503         uint rx_ass_rq;
 504         uint tx_probe_rq;
 505         uint reassoc;
 506         uint swtxstop;
 507         uint swtxawake;
 508 };
 509
 510 #define SEC_KEY_1         (1<<0)
 511 #define SEC_KEY_2         (1<<1)
 512 #define SEC_KEY_3         (1<<2)
 513 #define SEC_KEY_4         (1<<3)
 514 #define SEC_ACTIVE_KEY    (1<<4)
 515 #define SEC_AUTH_MODE     (1<<5)
 516 #define SEC_UNICAST_GROUP (1<<6)
 517 #define SEC_LEVEL         (1<<7)
 518 #define SEC_ENABLED       (1<<8)
 519
 520 #define SEC_LEVEL_0      0 /* None */
 521 #define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
 522 #define SEC_LEVEL_2      2 /* Level 1 + TKIP */
 523 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
 524 #define SEC_LEVEL_3      4 /* Level 2 + CCMP */
 525
 526 #define WEP_KEYS 4
 527 #define WEP_KEY_LEN 13
 528
 529 struct ieee80211_security {
 530         u16 active_key:2,
 531             enabled:1,
 532             auth_mode:2,
 533             auth_algo:4,
 534             unicast_uses_group:1;
 535         u8 key_sizes[WEP_KEYS];
 536         u8 keys[WEP_KEYS][WEP_KEY_LEN];
 537         u8 level;
 538         u16 flags;
 539 } __packed;
 540
 541 /*
 542
 543  802.11 data frame from AP
 544
 545       ,-------------------------------------------------------------------.
 546 Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
 547       |------|------|---------|---------|---------|------|---------|------|
 548 Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
 549       |      | tion | (BSSID) |         |         | ence |  data   |      |
 550       `-------------------------------------------------------------------'
 551
 552 Total: 28-2340 bytes
 553
 554 */
 555
 556 struct ieee80211_header_data {
 557         u16 frame_ctl;
 558         u16 duration_id;
 559         u8 addr1[6];
 560         u8 addr2[6];
 561         u8 addr3[6];
 562         u16 seq_ctrl;
 563 };
 564
 565 #define BEACON_PROBE_SSID_ID_POSITION 12
 566
 567 /* Management Frame Information Element Types */
 568 #define MFIE_TYPE_SSID       0
 569 #define MFIE_TYPE_RATES      1
 570 #define MFIE_TYPE_FH_SET     2
 571 #define MFIE_TYPE_DS_SET     3
 572 #define MFIE_TYPE_CF_SET     4
 573 #define MFIE_TYPE_TIM        5
 574 #define MFIE_TYPE_IBSS_SET   6
 575 #define MFIE_TYPE_CHALLENGE  16
 576 #define MFIE_TYPE_ERP        42
 577 #define MFIE_TYPE_RSN        48
 578 #define MFIE_TYPE_RATES_EX   50
 579 #define MFIE_TYPE_GENERIC    221
 580
 581 struct ieee80211_info_element_hdr {
 582         u8 id;
 583         u8 len;
 584 } __packed;
 585
 586 struct ieee80211_info_element {
 587         u8 id;
 588         u8 len;
 589         u8 data[0];
 590 } __packed;
 591
 592 /*
 593  * These are the data types that can make up management packets
 594  *
 595         u16 auth_algorithm;
 596         u16 auth_sequence;
 597         u16 beacon_interval;
 598         u16 capability;
 599         u8 current_ap[ETH_ALEN];
 600         u16 listen_interval;
 601         struct {
 602                 u16 association_id:14, reserved:2;
 603         } __packed;
 604         u32 time_stamp[2];
 605         u16 reason;
 606         u16 status;
 607 */
 608
 609 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
 610 #define IEEE80211_DEFAULT_BASIC_RATE 10
 611
 612 struct ieee80211_authentication {
 613         struct ieee80211_header_data header;
 614         u16 algorithm;
 615         u16 transaction;
 616         u16 status;
 617 } __packed;
 618
 619 struct ieee80211_probe_response {
 620         struct ieee80211_header_data header;
 621         u32 time_stamp[2];
 622         u16 beacon_interval;
 623         u16 capability;
 624         struct ieee80211_info_element info_element;
 625 } __packed;
 626
 627 struct ieee80211_probe_request {
 628         struct ieee80211_header_data header;
 629 } __packed;
 630
 631 struct ieee80211_assoc_request_frame {
 632         struct ieee80211_hdr_3addr header;
 633         u16 capability;
 634         u16 listen_interval;
 635         struct ieee80211_info_element_hdr info_element;
 636 } __packed;
 637
 638 struct ieee80211_assoc_response_frame {
 639         struct ieee80211_hdr_3addr header;
 640         u16 capability;
 641         u16 status;
 642         u16 aid;
 643 } __packed;
 644
 645 struct ieee80211_txb {
 646         u8 nr_frags;
 647         u8 encrypted;
 648         u16 reserved;
 649         u16 frag_size;
 650         u16 payload_size;
 651         struct sk_buff *fragments[0];
 652 };
 653
 654 /* SWEEP TABLE ENTRIES NUMBER*/
 655 #define MAX_SWEEP_TAB_ENTRIES             42
 656 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
 657 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 658  * only use 8, and then use extended rates for the remaining supported
 659  * rates.  Other APs, however, stick all of their supported rates on the
 660  * main rates information element... */
 661 #define MAX_RATES_LENGTH                  ((u8)12)
 662 #define MAX_RATES_EX_LENGTH               ((u8)16)
 663 #define MAX_NETWORK_COUNT                  128
 664 #define MAX_CHANNEL_NUMBER                 161
 665 #define IEEE80211_SOFTMAC_SCAN_TIME       400
 666 /*(HZ / 2)*/
 667 #define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
 668
 669 #define CRC_LENGTH                 4U
 670
 671 #define MAX_WPA_IE_LEN 128
 672
 673 #define NETWORK_EMPTY_ESSID (1<<0)
 674 #define NETWORK_HAS_OFDM    (1<<1)
 675 #define NETWORK_HAS_CCK     (1<<2)
 676
 677 #define IEEE80211_DTIM_MBCAST 4
 678 #define IEEE80211_DTIM_UCAST 2
 679 #define IEEE80211_DTIM_VALID 1
 680 #define IEEE80211_DTIM_INVALID 0
 681
 682 #define IEEE80211_PS_DISABLED 0
 683 #define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
 684 #define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
 685 #define IW_ESSID_MAX_SIZE 32
 686 /*
 687  * join_res:
 688  * -1: authentication fail
 689  * -2: association fail
 690  * > 0: TID
 691  */
 692
 693 enum ieee80211_state {
 694         /* the card is not linked at all */
 695         IEEE80211_NOLINK = 0,
 696         /* IEEE80211_ASSOCIATING* are for BSS client mode
 697          * the driver shall not perform RX filtering unless
 698          * the state is LINKED.
 699          * The driver shall just check for the state LINKED and
 700          * defaults to NOLINK for ALL the other states (including
 701          * LINKED_SCANNING)
 702          */
 703         /* the association procedure will start (wq scheduling)*/
 704         IEEE80211_ASSOCIATING,
 705         IEEE80211_ASSOCIATING_RETRY,
 706         /* the association procedure is sending AUTH request*/
 707         IEEE80211_ASSOCIATING_AUTHENTICATING,
 708         /* the association procedure has successfully authentcated
 709          * and is sending association request
 710          */
 711         IEEE80211_ASSOCIATING_AUTHENTICATED,
 712         /* the link is ok. the card associated to a BSS or linked
 713          * to a ibss cell or acting as an AP and creating the bss
 714          */
 715         IEEE80211_LINKED,
 716         /* same as LINKED, but the driver shall apply RX filter
 717          * rules as we are in NO_LINK mode. As the card is still
 718          * logically linked, but it is doing a syncro site survey
 719          * then it will be back to LINKED state.
 720          */
 721         IEEE80211_LINKED_SCANNING,
 722 };
 723
 724 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 725 #define DEFAULT_FTS 2346
 726
 727 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
 728 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
 729
 730 #define MAXTID  16
 731
 732 #define IEEE_A            (1<<0)
 733 #define IEEE_B            (1<<1)
 734 #define IEEE_G            (1<<2)
 735 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
 736
 737 extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
 738 {
 739         /* Single white space is for Linksys APs */
 740         if (essid_len == 1 && essid[0] == ' ')
 741                 return 1;
 742         /* Otherwise, if the entire essid is 0, we assume it is hidden */
 743         while (essid_len) {
 744                 essid_len--;
 745                 if (essid[essid_len] != '\0')
 746                         return 0;
 747         }
 748         return 1;
 749 }
 750
 751 extern inline int ieee80211_get_hdrlen(u16 fc)
 752 {
 753         int hdrlen = 24;
 754
 755         switch (WLAN_FC_GET_TYPE(fc)) {
 756         case IEEE80211_FTYPE_DATA:
 757                 if (fc & IEEE80211_QOS_DATAGRP)
 758                         hdrlen += 2;
 759                 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
 760                         hdrlen += 6; /* Addr4 */
 761                 break;
 762         case IEEE80211_FTYPE_CTL:
 763                 switch (WLAN_FC_GET_STYPE(fc)) {
 764                 case IEEE80211_STYPE_CTS:
 765                 case IEEE80211_STYPE_ACK:
 766                         hdrlen = 10;
 767                         break;
 768                 default:
 769                         hdrlen = 16;
 770                         break;
 771                 }
 772                 break;
 773         }
 774         return hdrlen;
 775 }
 776
 777 struct registry_priv;
 778
 779 u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
 780 u8 *r8712_get_ie(u8*pbuf, sint index, sint *len, sint limit);
 781 unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *rsn_ie_len, int limit);
 782 unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len,
 783                                  int limit);
 784 int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
 785                         int *pairwise_cipher);
 786 int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
 787                         int *pairwise_cipher);
 788 int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
 789                      u8 *wpa_ie, u16 *wpa_len);
 790 int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
 791 int r8712_generate_ie(struct registry_priv *pregistrypriv);
 792 uint r8712_is_cckrates_included(u8 *rate);
 793 uint r8712_is_cckratesonly_included(u8 *rate);
 794
 795 #endif /* IEEE80211_H */
 796