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