1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11 4 * remains copyright by the original authors 5 * 6 * Portions of the merged code are based on Host AP (software wireless 7 * LAN access point) driver for Intersil Prism2/2.5/3. 8 * 9 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen 10 * <j@w1.fi> 11 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> 12 * 13 * Adaption to a generic IEEE 802.11 stack by James Ketrenos 14 * <jketreno@linux.intel.com> 15 * Copyright (c) 2004-2005, Intel Corporation 16 * 17 * API Version History 18 * 1.0.x -- Initial version 19 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs, 20 * various structure changes, and crypto API init method 21 */ 22 #ifndef LIBIPW_H 23 #define LIBIPW_H 24 #include <linux/if_ether.h> /* ETH_ALEN */ 25 #include <linux/kernel.h> /* ARRAY_SIZE */ 26 #include <linux/wireless.h> 27 #include <linux/ieee80211.h> 28 29 #include <net/lib80211.h> 30 #include <net/cfg80211.h> 31 32 #define LIBIPW_VERSION "git-1.1.13" 33 34 #define LIBIPW_DATA_LEN 2304 35 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 36 6.2.1.1.2. 37 38 The figure in section 7.1.2 suggests a body size of up to 2312 39 bytes is allowed, which is a bit confusing, I suspect this 40 represents the 2304 bytes of real data, plus a possible 8 bytes of 41 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ 42 43 #define LIBIPW_1ADDR_LEN 10 44 #define LIBIPW_2ADDR_LEN 16 45 #define LIBIPW_3ADDR_LEN 24 46 #define LIBIPW_4ADDR_LEN 30 47 #define LIBIPW_FCS_LEN 4 48 #define LIBIPW_HLEN (LIBIPW_4ADDR_LEN) 49 #define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN) 50 51 #define MIN_FRAG_THRESHOLD 256U 52 #define MAX_FRAG_THRESHOLD 2346U 53 54 /* QOS control */ 55 #define LIBIPW_QCTL_TID 0x000F 56 57 /* debug macros */ 58 59 #ifdef CONFIG_LIBIPW_DEBUG 60 extern u32 libipw_debug_level; 61 #define LIBIPW_DEBUG(level, fmt, args...) \ 62 do { if (libipw_debug_level & (level)) \ 63 printk(KERN_DEBUG "libipw: %c %s " fmt, \ 64 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) 65 #else 66 #define LIBIPW_DEBUG(level, fmt, args...) do {} while (0) 67 #endif /* CONFIG_LIBIPW_DEBUG */ 68 69 /* 70 * To use the debug system: 71 * 72 * If you are defining a new debug classification, simply add it to the #define 73 * list here in the form of: 74 * 75 * #define LIBIPW_DL_xxxx VALUE 76 * 77 * shifting value to the left one bit from the previous entry. xxxx should be 78 * the name of the classification (for example, WEP) 79 * 80 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your 81 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want 82 * to send output to that classification. 83 * 84 * To add your debug level to the list of levels seen when you perform 85 * 86 * % cat /proc/net/ieee80211/debug_level 87 * 88 * you simply need to add your entry to the libipw_debug_level array. 89 * 90 * If you do not see debug_level in /proc/net/ieee80211 then you do not have 91 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration 92 * 93 */ 94 95 #define LIBIPW_DL_INFO (1<<0) 96 #define LIBIPW_DL_WX (1<<1) 97 #define LIBIPW_DL_SCAN (1<<2) 98 #define LIBIPW_DL_STATE (1<<3) 99 #define LIBIPW_DL_MGMT (1<<4) 100 #define LIBIPW_DL_FRAG (1<<5) 101 #define LIBIPW_DL_DROP (1<<7) 102 103 #define LIBIPW_DL_TX (1<<8) 104 #define LIBIPW_DL_RX (1<<9) 105 #define LIBIPW_DL_QOS (1<<31) 106 107 #define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a) 108 #define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a) 109 #define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a) 110 111 #define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a) 112 #define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a) 113 #define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a) 114 #define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a) 115 #define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a) 116 #define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a) 117 #define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a) 118 #define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a) 119 #define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a) 120 #include <linux/netdevice.h> 121 #include <linux/if_arp.h> /* ARPHRD_ETHER */ 122 123 #ifndef WIRELESS_SPY 124 #define WIRELESS_SPY /* enable iwspy support */ 125 #endif 126 #include <net/iw_handler.h> /* new driver API */ 127 128 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ 129 130 #ifndef ETH_P_80211_RAW 131 #define ETH_P_80211_RAW (ETH_P_ECONET + 1) 132 #endif 133 134 /* IEEE 802.11 defines */ 135 136 #define P80211_OUI_LEN 3 137 138 struct libipw_snap_hdr { 139 140 u8 dsap; /* always 0xAA */ 141 u8 ssap; /* always 0xAA */ 142 u8 ctrl; /* always 0x03 */ 143 u8 oui[P80211_OUI_LEN]; /* organizational universal id */ 144 145 } __packed; 146 147 #define SNAP_SIZE sizeof(struct libipw_snap_hdr) 148 149 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) 150 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) 151 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) 152 153 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) 154 #define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) 155 156 #define LIBIPW_STATMASK_SIGNAL (1<<0) 157 #define LIBIPW_STATMASK_RSSI (1<<1) 158 #define LIBIPW_STATMASK_NOISE (1<<2) 159 #define LIBIPW_STATMASK_RATE (1<<3) 160 #define LIBIPW_STATMASK_WEMASK 0x7 161 162 #define LIBIPW_CCK_MODULATION (1<<0) 163 #define LIBIPW_OFDM_MODULATION (1<<1) 164 165 #define LIBIPW_24GHZ_BAND (1<<0) 166 #define LIBIPW_52GHZ_BAND (1<<1) 167 168 #define LIBIPW_CCK_RATE_1MB 0x02 169 #define LIBIPW_CCK_RATE_2MB 0x04 170 #define LIBIPW_CCK_RATE_5MB 0x0B 171 #define LIBIPW_CCK_RATE_11MB 0x16 172 #define LIBIPW_OFDM_RATE_6MB 0x0C 173 #define LIBIPW_OFDM_RATE_9MB 0x12 174 #define LIBIPW_OFDM_RATE_12MB 0x18 175 #define LIBIPW_OFDM_RATE_18MB 0x24 176 #define LIBIPW_OFDM_RATE_24MB 0x30 177 #define LIBIPW_OFDM_RATE_36MB 0x48 178 #define LIBIPW_OFDM_RATE_48MB 0x60 179 #define LIBIPW_OFDM_RATE_54MB 0x6C 180 #define LIBIPW_BASIC_RATE_MASK 0x80 181 182 #define LIBIPW_CCK_RATE_1MB_MASK (1<<0) 183 #define LIBIPW_CCK_RATE_2MB_MASK (1<<1) 184 #define LIBIPW_CCK_RATE_5MB_MASK (1<<2) 185 #define LIBIPW_CCK_RATE_11MB_MASK (1<<3) 186 #define LIBIPW_OFDM_RATE_6MB_MASK (1<<4) 187 #define LIBIPW_OFDM_RATE_9MB_MASK (1<<5) 188 #define LIBIPW_OFDM_RATE_12MB_MASK (1<<6) 189 #define LIBIPW_OFDM_RATE_18MB_MASK (1<<7) 190 #define LIBIPW_OFDM_RATE_24MB_MASK (1<<8) 191 #define LIBIPW_OFDM_RATE_36MB_MASK (1<<9) 192 #define LIBIPW_OFDM_RATE_48MB_MASK (1<<10) 193 #define LIBIPW_OFDM_RATE_54MB_MASK (1<<11) 194 195 #define LIBIPW_CCK_RATES_MASK 0x0000000F 196 #define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \ 197 LIBIPW_CCK_RATE_2MB_MASK) 198 #define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \ 199 LIBIPW_CCK_RATE_5MB_MASK | \ 200 LIBIPW_CCK_RATE_11MB_MASK) 201 202 #define LIBIPW_OFDM_RATES_MASK 0x00000FF0 203 #define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \ 204 LIBIPW_OFDM_RATE_12MB_MASK | \ 205 LIBIPW_OFDM_RATE_24MB_MASK) 206 #define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \ 207 LIBIPW_OFDM_RATE_9MB_MASK | \ 208 LIBIPW_OFDM_RATE_18MB_MASK | \ 209 LIBIPW_OFDM_RATE_36MB_MASK | \ 210 LIBIPW_OFDM_RATE_48MB_MASK | \ 211 LIBIPW_OFDM_RATE_54MB_MASK) 212 #define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \ 213 LIBIPW_CCK_DEFAULT_RATES_MASK) 214 215 #define LIBIPW_NUM_OFDM_RATES 8 216 #define LIBIPW_NUM_CCK_RATES 4 217 #define LIBIPW_OFDM_SHIFT_MASK_A 4 218 219 /* NOTE: This data is for statistical purposes; not all hardware provides this 220 * information for frames received. 221 * For libipw_rx_mgt, you need to set at least the 'len' parameter. 222 */ 223 struct libipw_rx_stats { 224 u32 mac_time; 225 s8 rssi; 226 u8 signal; 227 u8 noise; 228 u16 rate; /* in 100 kbps */ 229 u8 received_channel; 230 u8 control; 231 u8 mask; 232 u8 freq; 233 u16 len; 234 u64 tsf; 235 u32 beacon_time; 236 }; 237 238 /* IEEE 802.11 requires that STA supports concurrent reception of at least 239 * three fragmented frames. This define can be increased to support more 240 * concurrent frames, but it should be noted that each entry can consume about 241 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ 242 #define LIBIPW_FRAG_CACHE_LEN 4 243 244 struct libipw_frag_entry { 245 unsigned long first_frag_time; 246 unsigned int seq; 247 unsigned int last_frag; 248 struct sk_buff *skb; 249 u8 src_addr[ETH_ALEN]; 250 u8 dst_addr[ETH_ALEN]; 251 }; 252 253 struct libipw_stats { 254 unsigned int tx_unicast_frames; 255 unsigned int tx_multicast_frames; 256 unsigned int tx_fragments; 257 unsigned int tx_unicast_octets; 258 unsigned int tx_multicast_octets; 259 unsigned int tx_deferred_transmissions; 260 unsigned int tx_single_retry_frames; 261 unsigned int tx_multiple_retry_frames; 262 unsigned int tx_retry_limit_exceeded; 263 unsigned int tx_discards; 264 unsigned int rx_unicast_frames; 265 unsigned int rx_multicast_frames; 266 unsigned int rx_fragments; 267 unsigned int rx_unicast_octets; 268 unsigned int rx_multicast_octets; 269 unsigned int rx_fcs_errors; 270 unsigned int rx_discards_no_buffer; 271 unsigned int tx_discards_wrong_sa; 272 unsigned int rx_discards_undecryptable; 273 unsigned int rx_message_in_msg_fragments; 274 unsigned int rx_message_in_bad_msg_fragments; 275 }; 276 277 struct libipw_device; 278 279 #define SEC_KEY_1 (1<<0) 280 #define SEC_KEY_2 (1<<1) 281 #define SEC_KEY_3 (1<<2) 282 #define SEC_KEY_4 (1<<3) 283 #define SEC_ACTIVE_KEY (1<<4) 284 #define SEC_AUTH_MODE (1<<5) 285 #define SEC_UNICAST_GROUP (1<<6) 286 #define SEC_LEVEL (1<<7) 287 #define SEC_ENABLED (1<<8) 288 #define SEC_ENCRYPT (1<<9) 289 290 #define SEC_LEVEL_0 0 /* None */ 291 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ 292 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */ 293 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ 294 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */ 295 296 #define SEC_ALG_NONE 0 297 #define SEC_ALG_WEP 1 298 #define SEC_ALG_TKIP 2 299 #define SEC_ALG_CCMP 3 300 301 #define WEP_KEYS 4 302 #define WEP_KEY_LEN 13 303 #define SCM_KEY_LEN 32 304 #define SCM_TEMPORAL_KEY_LENGTH 16 305 306 struct libipw_security { 307 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1; 308 u8 auth_mode; 309 u8 encode_alg[WEP_KEYS]; 310 u8 key_sizes[WEP_KEYS]; 311 u8 keys[WEP_KEYS][SCM_KEY_LEN]; 312 u8 level; 313 u16 flags; 314 } __packed; 315 316 /* 317 318 802.11 data frame from AP 319 320 ,-------------------------------------------------------------------. 321 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | 322 |------|------|---------|---------|---------|------|---------|------| 323 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | 324 | | tion | (BSSID) | | | ence | data | | 325 `-------------------------------------------------------------------' 326 327 Total: 28-2340 bytes 328 329 */ 330 331 #define BEACON_PROBE_SSID_ID_POSITION 12 332 333 struct libipw_hdr_1addr { 334 __le16 frame_ctl; 335 __le16 duration_id; 336 u8 addr1[ETH_ALEN]; 337 u8 payload[]; 338 } __packed; 339 340 struct libipw_hdr_2addr { 341 __le16 frame_ctl; 342 __le16 duration_id; 343 u8 addr1[ETH_ALEN]; 344 u8 addr2[ETH_ALEN]; 345 u8 payload[]; 346 } __packed; 347 348 struct libipw_hdr_3addr { 349 __le16 frame_ctl; 350 __le16 duration_id; 351 u8 addr1[ETH_ALEN]; 352 u8 addr2[ETH_ALEN]; 353 u8 addr3[ETH_ALEN]; 354 __le16 seq_ctl; 355 u8 payload[]; 356 } __packed; 357 358 struct libipw_hdr_4addr { 359 __le16 frame_ctl; 360 __le16 duration_id; 361 u8 addr1[ETH_ALEN]; 362 u8 addr2[ETH_ALEN]; 363 u8 addr3[ETH_ALEN]; 364 __le16 seq_ctl; 365 u8 addr4[ETH_ALEN]; 366 u8 payload[]; 367 } __packed; 368 369 struct libipw_hdr_3addrqos { 370 __le16 frame_ctl; 371 __le16 duration_id; 372 u8 addr1[ETH_ALEN]; 373 u8 addr2[ETH_ALEN]; 374 u8 addr3[ETH_ALEN]; 375 __le16 seq_ctl; 376 u8 payload[0]; 377 __le16 qos_ctl; 378 } __packed; 379 380 struct libipw_info_element { 381 u8 id; 382 u8 len; 383 u8 data[]; 384 } __packed; 385 386 /* 387 * These are the data types that can make up management packets 388 * 389 u16 auth_algorithm; 390 u16 auth_sequence; 391 u16 beacon_interval; 392 u16 capability; 393 u8 current_ap[ETH_ALEN]; 394 u16 listen_interval; 395 struct { 396 u16 association_id:14, reserved:2; 397 } __packed; 398 u32 time_stamp[2]; 399 u16 reason; 400 u16 status; 401 */ 402 403 struct libipw_auth { 404 struct libipw_hdr_3addr header; 405 __le16 algorithm; 406 __le16 transaction; 407 __le16 status; 408 /* challenge */ 409 struct libipw_info_element info_element[]; 410 } __packed; 411 412 struct libipw_channel_switch { 413 u8 id; 414 u8 len; 415 u8 mode; 416 u8 channel; 417 u8 count; 418 } __packed; 419 420 struct libipw_action { 421 struct libipw_hdr_3addr header; 422 u8 category; 423 u8 action; 424 union { 425 struct libipw_action_exchange { 426 u8 token; 427 struct libipw_info_element info_element[0]; 428 } exchange; 429 struct libipw_channel_switch channel_switch; 430 431 } format; 432 } __packed; 433 434 struct libipw_disassoc { 435 struct libipw_hdr_3addr header; 436 __le16 reason; 437 } __packed; 438 439 /* Alias deauth for disassoc */ 440 #define libipw_deauth libipw_disassoc 441 442 struct libipw_probe_request { 443 struct libipw_hdr_3addr header; 444 /* SSID, supported rates */ 445 struct libipw_info_element info_element[]; 446 } __packed; 447 448 struct libipw_probe_response { 449 struct libipw_hdr_3addr header; 450 __le32 time_stamp[2]; 451 __le16 beacon_interval; 452 __le16 capability; 453 /* SSID, supported rates, FH params, DS params, 454 * CF params, IBSS params, TIM (if beacon), RSN */ 455 struct libipw_info_element info_element[]; 456 } __packed; 457 458 /* Alias beacon for probe_response */ 459 #define libipw_beacon libipw_probe_response 460 461 struct libipw_assoc_request { 462 struct libipw_hdr_3addr header; 463 __le16 capability; 464 __le16 listen_interval; 465 /* SSID, supported rates, RSN */ 466 struct libipw_info_element info_element[]; 467 } __packed; 468 469 struct libipw_reassoc_request { 470 struct libipw_hdr_3addr header; 471 __le16 capability; 472 __le16 listen_interval; 473 u8 current_ap[ETH_ALEN]; 474 struct libipw_info_element info_element[]; 475 } __packed; 476 477 struct libipw_assoc_response { 478 struct libipw_hdr_3addr header; 479 __le16 capability; 480 __le16 status; 481 __le16 aid; 482 /* supported rates */ 483 struct libipw_info_element info_element[]; 484 } __packed; 485 486 struct libipw_txb { 487 u8 nr_frags; 488 u8 encrypted; 489 u8 rts_included; 490 u8 reserved; 491 u16 frag_size; 492 u16 payload_size; 493 struct sk_buff *fragments[]; 494 }; 495 496 /* SWEEP TABLE ENTRIES NUMBER */ 497 #define MAX_SWEEP_TAB_ENTRIES 42 498 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 499 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs 500 * only use 8, and then use extended rates for the remaining supported 501 * rates. Other APs, however, stick all of their supported rates on the 502 * main rates information element... */ 503 #define MAX_RATES_LENGTH ((u8)12) 504 #define MAX_RATES_EX_LENGTH ((u8)16) 505 #define MAX_NETWORK_COUNT 128 506 507 #define CRC_LENGTH 4U 508 509 #define MAX_WPA_IE_LEN 64 510 511 #define NETWORK_HAS_OFDM (1<<1) 512 #define NETWORK_HAS_CCK (1<<2) 513 514 /* QoS structure */ 515 #define NETWORK_HAS_QOS_PARAMETERS (1<<3) 516 #define NETWORK_HAS_QOS_INFORMATION (1<<4) 517 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \ 518 NETWORK_HAS_QOS_INFORMATION) 519 520 /* 802.11h */ 521 #define NETWORK_HAS_POWER_CONSTRAINT (1<<5) 522 #define NETWORK_HAS_CSA (1<<6) 523 #define NETWORK_HAS_QUIET (1<<7) 524 #define NETWORK_HAS_IBSS_DFS (1<<8) 525 #define NETWORK_HAS_TPC_REPORT (1<<9) 526 527 #define NETWORK_HAS_ERP_VALUE (1<<10) 528 529 #define QOS_QUEUE_NUM 4 530 #define QOS_OUI_LEN 3 531 #define QOS_OUI_TYPE 2 532 #define QOS_ELEMENT_ID 221 533 #define QOS_OUI_INFO_SUB_TYPE 0 534 #define QOS_OUI_PARAM_SUB_TYPE 1 535 #define QOS_VERSION_1 1 536 #define QOS_AIFSN_MIN_VALUE 2 537 538 struct libipw_qos_information_element { 539 u8 elementID; 540 u8 length; 541 u8 qui[QOS_OUI_LEN]; 542 u8 qui_type; 543 u8 qui_subtype; 544 u8 version; 545 u8 ac_info; 546 } __packed; 547 548 struct libipw_qos_ac_parameter { 549 u8 aci_aifsn; 550 u8 ecw_min_max; 551 __le16 tx_op_limit; 552 } __packed; 553 554 struct libipw_qos_parameter_info { 555 struct libipw_qos_information_element info_element; 556 u8 reserved; 557 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM]; 558 } __packed; 559 560 struct libipw_qos_parameters { 561 __le16 cw_min[QOS_QUEUE_NUM]; 562 __le16 cw_max[QOS_QUEUE_NUM]; 563 u8 aifs[QOS_QUEUE_NUM]; 564 u8 flag[QOS_QUEUE_NUM]; 565 __le16 tx_op_limit[QOS_QUEUE_NUM]; 566 } __packed; 567 568 struct libipw_qos_data { 569 struct libipw_qos_parameters parameters; 570 int active; 571 int supported; 572 u8 param_count; 573 u8 old_param_count; 574 }; 575 576 struct libipw_tim_parameters { 577 u8 tim_count; 578 u8 tim_period; 579 } __packed; 580 581 /*******************************************************/ 582 583 struct libipw_tpc_report { 584 u8 transmit_power; 585 u8 link_margin; 586 } __packed; 587 588 struct libipw_channel_map { 589 u8 channel; 590 u8 map; 591 } __packed; 592 593 struct libipw_ibss_dfs { 594 struct libipw_info_element ie; 595 u8 owner[ETH_ALEN]; 596 u8 recovery_interval; 597 struct libipw_channel_map channel_map[]; 598 }; 599 600 struct libipw_csa { 601 u8 mode; 602 u8 channel; 603 u8 count; 604 } __packed; 605 606 struct libipw_quiet { 607 u8 count; 608 u8 period; 609 u8 duration; 610 u8 offset; 611 } __packed; 612 613 struct libipw_network { 614 /* These entries are used to identify a unique network */ 615 u8 bssid[ETH_ALEN]; 616 u8 channel; 617 /* Ensure null-terminated for any debug msgs */ 618 u8 ssid[IW_ESSID_MAX_SIZE + 1]; 619 u8 ssid_len; 620 621 struct libipw_qos_data qos_data; 622 623 /* These are network statistics */ 624 struct libipw_rx_stats stats; 625 u16 capability; 626 u8 rates[MAX_RATES_LENGTH]; 627 u8 rates_len; 628 u8 rates_ex[MAX_RATES_EX_LENGTH]; 629 u8 rates_ex_len; 630 unsigned long last_scanned; 631 u8 mode; 632 u32 flags; 633 u32 last_associate; 634 u32 time_stamp[2]; 635 u16 beacon_interval; 636 u16 listen_interval; 637 u16 atim_window; 638 u8 erp_value; 639 u8 wpa_ie[MAX_WPA_IE_LEN]; 640 size_t wpa_ie_len; 641 u8 rsn_ie[MAX_WPA_IE_LEN]; 642 size_t rsn_ie_len; 643 struct libipw_tim_parameters tim; 644 645 /* 802.11h info */ 646 647 /* Power Constraint - mandatory if spctrm mgmt required */ 648 u8 power_constraint; 649 650 /* TPC Report - mandatory if spctrm mgmt required */ 651 struct libipw_tpc_report tpc_report; 652 653 /* Channel Switch Announcement - optional if spctrm mgmt required */ 654 struct libipw_csa csa; 655 656 /* Quiet - optional if spctrm mgmt required */ 657 struct libipw_quiet quiet; 658 659 struct list_head list; 660 }; 661 662 enum libipw_state { 663 LIBIPW_UNINITIALIZED = 0, 664 LIBIPW_INITIALIZED, 665 LIBIPW_ASSOCIATING, 666 LIBIPW_ASSOCIATED, 667 LIBIPW_AUTHENTICATING, 668 LIBIPW_AUTHENTICATED, 669 LIBIPW_SHUTDOWN 670 }; 671 672 #define DEFAULT_MAX_SCAN_AGE (15 * HZ) 673 #define DEFAULT_FTS 2346 674 675 #define CFG_LIBIPW_RESERVE_FCS (1<<0) 676 #define CFG_LIBIPW_COMPUTE_FCS (1<<1) 677 #define CFG_LIBIPW_RTS (1<<2) 678 679 #define LIBIPW_24GHZ_MIN_CHANNEL 1 680 #define LIBIPW_24GHZ_MAX_CHANNEL 14 681 #define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \ 682 LIBIPW_24GHZ_MIN_CHANNEL + 1) 683 684 #define LIBIPW_52GHZ_MIN_CHANNEL 34 685 #define LIBIPW_52GHZ_MAX_CHANNEL 165 686 #define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \ 687 LIBIPW_52GHZ_MIN_CHANNEL + 1) 688 689 enum { 690 LIBIPW_CH_PASSIVE_ONLY = (1 << 0), 691 LIBIPW_CH_80211H_RULES = (1 << 1), 692 LIBIPW_CH_B_ONLY = (1 << 2), 693 LIBIPW_CH_NO_IBSS = (1 << 3), 694 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4), 695 LIBIPW_CH_RADAR_DETECT = (1 << 5), 696 LIBIPW_CH_INVALID = (1 << 6), 697 }; 698 699 struct libipw_channel { 700 u32 freq; /* in MHz */ 701 u8 channel; 702 u8 flags; 703 u8 max_power; /* in dBm */ 704 }; 705 706 struct libipw_geo { 707 u8 name[4]; 708 u8 bg_channels; 709 u8 a_channels; 710 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS]; 711 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS]; 712 }; 713 714 struct libipw_device { 715 struct net_device *dev; 716 struct wireless_dev wdev; 717 struct libipw_security sec; 718 719 /* Bookkeeping structures */ 720 struct libipw_stats ieee_stats; 721 722 struct libipw_geo geo; 723 struct ieee80211_supported_band bg_band; 724 struct ieee80211_supported_band a_band; 725 726 /* Probe / Beacon management */ 727 struct list_head network_free_list; 728 struct list_head network_list; 729 struct libipw_network *networks[MAX_NETWORK_COUNT]; 730 int scans; 731 int scan_age; 732 733 int iw_mode; /* operating mode (IW_MODE_*) */ 734 struct iw_spy_data spy_data; /* iwspy support */ 735 736 spinlock_t lock; 737 738 int tx_headroom; /* Set to size of any additional room needed at front 739 * of allocated Tx SKBs */ 740 u32 config; 741 742 /* WEP and other encryption related settings at the device level */ 743 int open_wep; /* Set to 1 to allow unencrypted frames */ 744 745 /* If the host performs {en,de}cryption, then set to 1 */ 746 int host_encrypt; 747 int host_encrypt_msdu; 748 int host_decrypt; 749 /* host performs multicast decryption */ 750 int host_mc_decrypt; 751 752 /* host should strip IV and ICV from protected frames */ 753 /* meaningful only when hardware decryption is being used */ 754 int host_strip_iv_icv; 755 756 int host_open_frag; 757 int ieee802_1x; /* is IEEE 802.1X used */ 758 759 /* WPA data */ 760 int wpa_enabled; 761 int drop_unencrypted; 762 int privacy_invoked; 763 size_t wpa_ie_len; 764 u8 *wpa_ie; 765 766 struct lib80211_crypt_info crypt_info; 767 768 int bcrx_sta_key; /* use individual keys to override default keys even 769 * with RX of broad/multicast frames */ 770 771 /* Fragmentation structures */ 772 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN]; 773 unsigned int frag_next_idx; 774 u16 fts; /* Fragmentation Threshold */ 775 u16 rts; /* RTS threshold */ 776 777 /* Association info */ 778 u8 bssid[ETH_ALEN]; 779 780 enum libipw_state state; 781 782 int mode; /* A, B, G */ 783 int modulation; /* CCK, OFDM */ 784 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ 785 int abg_true; /* ABG flag */ 786 787 int perfect_rssi; 788 int worst_rssi; 789 790 u16 prev_seq_ctl; /* used to drop duplicate frames */ 791 792 /* Callback functions */ 793 void (*set_security) (struct net_device * dev, 794 struct libipw_security * sec); 795 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb, 796 struct net_device * dev, int pri); 797 int (*is_queue_full) (struct net_device * dev, int pri); 798 799 int (*handle_management) (struct net_device * dev, 800 struct libipw_network * network, u16 type); 801 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb); 802 803 /* Typical STA methods */ 804 int (*handle_auth) (struct net_device * dev, 805 struct libipw_auth * auth); 806 int (*handle_deauth) (struct net_device * dev, 807 struct libipw_deauth * auth); 808 int (*handle_action) (struct net_device * dev, 809 struct libipw_action * action, 810 struct libipw_rx_stats * stats); 811 int (*handle_disassoc) (struct net_device * dev, 812 struct libipw_disassoc * assoc); 813 int (*handle_beacon) (struct net_device * dev, 814 struct libipw_beacon * beacon, 815 struct libipw_network * network); 816 int (*handle_probe_response) (struct net_device * dev, 817 struct libipw_probe_response * resp, 818 struct libipw_network * network); 819 int (*handle_probe_request) (struct net_device * dev, 820 struct libipw_probe_request * req, 821 struct libipw_rx_stats * stats); 822 int (*handle_assoc_response) (struct net_device * dev, 823 struct libipw_assoc_response * resp, 824 struct libipw_network * network); 825 826 /* Typical AP methods */ 827 int (*handle_assoc_request) (struct net_device * dev); 828 int (*handle_reassoc_request) (struct net_device * dev, 829 struct libipw_reassoc_request * req); 830 831 /* This must be the last item so that it points to the data 832 * allocated beyond this structure by alloc_libipw */ 833 u8 priv[]; 834 }; 835 836 #define IEEE_A (1<<0) 837 #define IEEE_B (1<<1) 838 #define IEEE_G (1<<2) 839 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) 840 841 static inline void *libipw_priv(struct net_device *dev) 842 { 843 return ((struct libipw_device *)netdev_priv(dev))->priv; 844 } 845 846 static inline int libipw_is_valid_mode(struct libipw_device *ieee, 847 int mode) 848 { 849 /* 850 * It is possible for both access points and our device to support 851 * combinations of modes, so as long as there is one valid combination 852 * of ap/device supported modes, then return success 853 * 854 */ 855 if ((mode & IEEE_A) && 856 (ieee->modulation & LIBIPW_OFDM_MODULATION) && 857 (ieee->freq_band & LIBIPW_52GHZ_BAND)) 858 return 1; 859 860 if ((mode & IEEE_G) && 861 (ieee->modulation & LIBIPW_OFDM_MODULATION) && 862 (ieee->freq_band & LIBIPW_24GHZ_BAND)) 863 return 1; 864 865 if ((mode & IEEE_B) && 866 (ieee->modulation & LIBIPW_CCK_MODULATION) && 867 (ieee->freq_band & LIBIPW_24GHZ_BAND)) 868 return 1; 869 870 return 0; 871 } 872 873 static inline int libipw_get_hdrlen(u16 fc) 874 { 875 int hdrlen = LIBIPW_3ADDR_LEN; 876 u16 stype = WLAN_FC_GET_STYPE(fc); 877 878 switch (WLAN_FC_GET_TYPE(fc)) { 879 case IEEE80211_FTYPE_DATA: 880 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) 881 hdrlen = LIBIPW_4ADDR_LEN; 882 if (stype & IEEE80211_STYPE_QOS_DATA) 883 hdrlen += 2; 884 break; 885 case IEEE80211_FTYPE_CTL: 886 switch (WLAN_FC_GET_STYPE(fc)) { 887 case IEEE80211_STYPE_CTS: 888 case IEEE80211_STYPE_ACK: 889 hdrlen = LIBIPW_1ADDR_LEN; 890 break; 891 default: 892 hdrlen = LIBIPW_2ADDR_LEN; 893 break; 894 } 895 break; 896 } 897 898 return hdrlen; 899 } 900 901 static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr) 902 { 903 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) { 904 case LIBIPW_1ADDR_LEN: 905 return ((struct libipw_hdr_1addr *)hdr)->payload; 906 case LIBIPW_2ADDR_LEN: 907 return ((struct libipw_hdr_2addr *)hdr)->payload; 908 case LIBIPW_3ADDR_LEN: 909 return ((struct libipw_hdr_3addr *)hdr)->payload; 910 case LIBIPW_4ADDR_LEN: 911 return ((struct libipw_hdr_4addr *)hdr)->payload; 912 } 913 return NULL; 914 } 915 916 static inline int libipw_is_ofdm_rate(u8 rate) 917 { 918 switch (rate & ~LIBIPW_BASIC_RATE_MASK) { 919 case LIBIPW_OFDM_RATE_6MB: 920 case LIBIPW_OFDM_RATE_9MB: 921 case LIBIPW_OFDM_RATE_12MB: 922 case LIBIPW_OFDM_RATE_18MB: 923 case LIBIPW_OFDM_RATE_24MB: 924 case LIBIPW_OFDM_RATE_36MB: 925 case LIBIPW_OFDM_RATE_48MB: 926 case LIBIPW_OFDM_RATE_54MB: 927 return 1; 928 } 929 return 0; 930 } 931 932 static inline int libipw_is_cck_rate(u8 rate) 933 { 934 switch (rate & ~LIBIPW_BASIC_RATE_MASK) { 935 case LIBIPW_CCK_RATE_1MB: 936 case LIBIPW_CCK_RATE_2MB: 937 case LIBIPW_CCK_RATE_5MB: 938 case LIBIPW_CCK_RATE_11MB: 939 return 1; 940 } 941 return 0; 942 } 943 944 /* libipw.c */ 945 void free_libipw(struct net_device *dev, int monitor); 946 struct net_device *alloc_libipw(int sizeof_priv, int monitor); 947 948 void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs); 949 950 int libipw_set_encryption(struct libipw_device *ieee); 951 952 /* libipw_tx.c */ 953 netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev); 954 void libipw_txb_free(struct libipw_txb *); 955 956 /* libipw_rx.c */ 957 void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb, 958 struct libipw_rx_stats *stats); 959 int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, 960 struct libipw_rx_stats *rx_stats); 961 /* make sure to set stats->len */ 962 void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header, 963 struct libipw_rx_stats *stats); 964 965 /* libipw_geo.c */ 966 const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee); 967 void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo); 968 969 int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel); 970 int libipw_channel_to_index(struct libipw_device *ieee, u8 channel); 971 u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq); 972 u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel); 973 const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee, 974 u8 channel); 975 u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel); 976 977 /* libipw_wx.c */ 978 int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info, 979 union iwreq_data *wrqu, char *key); 980 int libipw_wx_set_encode(struct libipw_device *ieee, 981 struct iw_request_info *info, union iwreq_data *wrqu, 982 char *key); 983 int libipw_wx_get_encode(struct libipw_device *ieee, 984 struct iw_request_info *info, union iwreq_data *wrqu, 985 char *key); 986 int libipw_wx_set_encodeext(struct libipw_device *ieee, 987 struct iw_request_info *info, 988 union iwreq_data *wrqu, char *extra); 989 int libipw_wx_get_encodeext(struct libipw_device *ieee, 990 struct iw_request_info *info, 991 union iwreq_data *wrqu, char *extra); 992 993 static inline void libipw_increment_scans(struct libipw_device *ieee) 994 { 995 ieee->scans++; 996 } 997 998 static inline int libipw_get_scans(struct libipw_device *ieee) 999 { 1000 return ieee->scans; 1001 } 1002 1003 #endif /* LIBIPW_H */ 1004