libipw.h revision 8e59340e4fb65cfd748eaa1e23db057c52520f35
1/* 2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11 3 * remains copyright by the original authors 4 * 5 * Portions of the merged code are based on Host AP (software wireless 6 * LAN access point) driver for Intersil Prism2/2.5/3. 7 * 8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen 9 * <j@w1.fi> 10 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> 11 * 12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos 13 * <jketreno@linux.intel.com> 14 * Copyright (c) 2004-2005, Intel Corporation 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License version 2 as 18 * published by the Free Software Foundation. See README and COPYING for 19 * more details. 20 * 21 * API Version History 22 * 1.0.x -- Initial version 23 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs, 24 * various structure changes, and crypto API init method 25 */ 26#ifndef LIBIPW_H 27#define LIBIPW_H 28#include <linux/if_ether.h> /* ETH_ALEN */ 29#include <linux/kernel.h> /* ARRAY_SIZE */ 30#include <linux/wireless.h> 31#include <linux/ieee80211.h> 32 33#include <net/lib80211.h> 34#include <net/cfg80211.h> 35 36#define LIBIPW_VERSION "git-1.1.13" 37 38#define LIBIPW_DATA_LEN 2304 39/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 40 6.2.1.1.2. 41 42 The figure in section 7.1.2 suggests a body size of up to 2312 43 bytes is allowed, which is a bit confusing, I suspect this 44 represents the 2304 bytes of real data, plus a possible 8 bytes of 45 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ 46 47#define LIBIPW_1ADDR_LEN 10 48#define LIBIPW_2ADDR_LEN 16 49#define LIBIPW_3ADDR_LEN 24 50#define LIBIPW_4ADDR_LEN 30 51#define LIBIPW_FCS_LEN 4 52#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN) 53#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN) 54 55#define MIN_FRAG_THRESHOLD 256U 56#define MAX_FRAG_THRESHOLD 2346U 57 58/* QOS control */ 59#define LIBIPW_QCTL_TID 0x000F 60 61/* debug macros */ 62 63#ifdef CONFIG_LIBIPW_DEBUG 64extern u32 libipw_debug_level; 65#define LIBIPW_DEBUG(level, fmt, args...) \ 66do { if (libipw_debug_level & (level)) \ 67 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ 68 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) 69static inline bool libipw_ratelimit_debug(u32 level) 70{ 71 return (libipw_debug_level & level) && net_ratelimit(); 72} 73#else 74#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0) 75static inline bool libipw_ratelimit_debug(u32 level) 76{ 77 return false; 78} 79#endif /* CONFIG_LIBIPW_DEBUG */ 80 81/* 82 * To use the debug system: 83 * 84 * If you are defining a new debug classification, simply add it to the #define 85 * list here in the form of: 86 * 87 * #define LIBIPW_DL_xxxx VALUE 88 * 89 * shifting value to the left one bit from the previous entry. xxxx should be 90 * the name of the classification (for example, WEP) 91 * 92 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your 93 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want 94 * to send output to that classification. 95 * 96 * To add your debug level to the list of levels seen when you perform 97 * 98 * % cat /proc/net/ieee80211/debug_level 99 * 100 * you simply need to add your entry to the libipw_debug_level array. 101 * 102 * If you do not see debug_level in /proc/net/ieee80211 then you do not have 103 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration 104 * 105 */ 106 107#define LIBIPW_DL_INFO (1<<0) 108#define LIBIPW_DL_WX (1<<1) 109#define LIBIPW_DL_SCAN (1<<2) 110#define LIBIPW_DL_STATE (1<<3) 111#define LIBIPW_DL_MGMT (1<<4) 112#define LIBIPW_DL_FRAG (1<<5) 113#define LIBIPW_DL_DROP (1<<7) 114 115#define LIBIPW_DL_TX (1<<8) 116#define LIBIPW_DL_RX (1<<9) 117#define LIBIPW_DL_QOS (1<<31) 118 119#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) 120#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) 121#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a) 122 123#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a) 124#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a) 125#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a) 126#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a) 127#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a) 128#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a) 129#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a) 130#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a) 131#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a) 132#include <linux/netdevice.h> 133#include <linux/if_arp.h> /* ARPHRD_ETHER */ 134 135#ifndef WIRELESS_SPY 136#define WIRELESS_SPY /* enable iwspy support */ 137#endif 138#include <net/iw_handler.h> /* new driver API */ 139 140#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ 141 142#ifndef ETH_P_80211_RAW 143#define ETH_P_80211_RAW (ETH_P_ECONET + 1) 144#endif 145 146/* IEEE 802.11 defines */ 147 148#define P80211_OUI_LEN 3 149 150struct libipw_snap_hdr { 151 152 u8 dsap; /* always 0xAA */ 153 u8 ssap; /* always 0xAA */ 154 u8 ctrl; /* always 0x03 */ 155 u8 oui[P80211_OUI_LEN]; /* organizational universal id */ 156 157} __attribute__ ((packed)); 158 159#define SNAP_SIZE sizeof(struct libipw_snap_hdr) 160 161#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) 162#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) 163#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) 164 165#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) 166#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) 167 168#define LIBIPW_STATMASK_SIGNAL (1<<0) 169#define LIBIPW_STATMASK_RSSI (1<<1) 170#define LIBIPW_STATMASK_NOISE (1<<2) 171#define LIBIPW_STATMASK_RATE (1<<3) 172#define LIBIPW_STATMASK_WEMASK 0x7 173 174#define LIBIPW_CCK_MODULATION (1<<0) 175#define LIBIPW_OFDM_MODULATION (1<<1) 176 177#define LIBIPW_24GHZ_BAND (1<<0) 178#define LIBIPW_52GHZ_BAND (1<<1) 179 180#define LIBIPW_CCK_RATE_1MB 0x02 181#define LIBIPW_CCK_RATE_2MB 0x04 182#define LIBIPW_CCK_RATE_5MB 0x0B 183#define LIBIPW_CCK_RATE_11MB 0x16 184#define LIBIPW_OFDM_RATE_6MB 0x0C 185#define LIBIPW_OFDM_RATE_9MB 0x12 186#define LIBIPW_OFDM_RATE_12MB 0x18 187#define LIBIPW_OFDM_RATE_18MB 0x24 188#define LIBIPW_OFDM_RATE_24MB 0x30 189#define LIBIPW_OFDM_RATE_36MB 0x48 190#define LIBIPW_OFDM_RATE_48MB 0x60 191#define LIBIPW_OFDM_RATE_54MB 0x6C 192#define LIBIPW_BASIC_RATE_MASK 0x80 193 194#define LIBIPW_CCK_RATE_1MB_MASK (1<<0) 195#define LIBIPW_CCK_RATE_2MB_MASK (1<<1) 196#define LIBIPW_CCK_RATE_5MB_MASK (1<<2) 197#define LIBIPW_CCK_RATE_11MB_MASK (1<<3) 198#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4) 199#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5) 200#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6) 201#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7) 202#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8) 203#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9) 204#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10) 205#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11) 206 207#define LIBIPW_CCK_RATES_MASK 0x0000000F 208#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \ 209 LIBIPW_CCK_RATE_2MB_MASK) 210#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \ 211 LIBIPW_CCK_RATE_5MB_MASK | \ 212 LIBIPW_CCK_RATE_11MB_MASK) 213 214#define LIBIPW_OFDM_RATES_MASK 0x00000FF0 215#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \ 216 LIBIPW_OFDM_RATE_12MB_MASK | \ 217 LIBIPW_OFDM_RATE_24MB_MASK) 218#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \ 219 LIBIPW_OFDM_RATE_9MB_MASK | \ 220 LIBIPW_OFDM_RATE_18MB_MASK | \ 221 LIBIPW_OFDM_RATE_36MB_MASK | \ 222 LIBIPW_OFDM_RATE_48MB_MASK | \ 223 LIBIPW_OFDM_RATE_54MB_MASK) 224#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \ 225 LIBIPW_CCK_DEFAULT_RATES_MASK) 226 227#define LIBIPW_NUM_OFDM_RATES 8 228#define LIBIPW_NUM_CCK_RATES 4 229#define LIBIPW_OFDM_SHIFT_MASK_A 4 230 231/* NOTE: This data is for statistical purposes; not all hardware provides this 232 * information for frames received. 233 * For libipw_rx_mgt, you need to set at least the 'len' parameter. 234 */ 235struct libipw_rx_stats { 236 u32 mac_time; 237 s8 rssi; 238 u8 signal; 239 u8 noise; 240 u16 rate; /* in 100 kbps */ 241 u8 received_channel; 242 u8 control; 243 u8 mask; 244 u8 freq; 245 u16 len; 246 u64 tsf; 247 u32 beacon_time; 248}; 249 250/* IEEE 802.11 requires that STA supports concurrent reception of at least 251 * three fragmented frames. This define can be increased to support more 252 * concurrent frames, but it should be noted that each entry can consume about 253 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ 254#define LIBIPW_FRAG_CACHE_LEN 4 255 256struct libipw_frag_entry { 257 unsigned long first_frag_time; 258 unsigned int seq; 259 unsigned int last_frag; 260 struct sk_buff *skb; 261 u8 src_addr[ETH_ALEN]; 262 u8 dst_addr[ETH_ALEN]; 263}; 264 265struct libipw_stats { 266 unsigned int tx_unicast_frames; 267 unsigned int tx_multicast_frames; 268 unsigned int tx_fragments; 269 unsigned int tx_unicast_octets; 270 unsigned int tx_multicast_octets; 271 unsigned int tx_deferred_transmissions; 272 unsigned int tx_single_retry_frames; 273 unsigned int tx_multiple_retry_frames; 274 unsigned int tx_retry_limit_exceeded; 275 unsigned int tx_discards; 276 unsigned int rx_unicast_frames; 277 unsigned int rx_multicast_frames; 278 unsigned int rx_fragments; 279 unsigned int rx_unicast_octets; 280 unsigned int rx_multicast_octets; 281 unsigned int rx_fcs_errors; 282 unsigned int rx_discards_no_buffer; 283 unsigned int tx_discards_wrong_sa; 284 unsigned int rx_discards_undecryptable; 285 unsigned int rx_message_in_msg_fragments; 286 unsigned int rx_message_in_bad_msg_fragments; 287}; 288 289struct libipw_device; 290 291#define SEC_KEY_1 (1<<0) 292#define SEC_KEY_2 (1<<1) 293#define SEC_KEY_3 (1<<2) 294#define SEC_KEY_4 (1<<3) 295#define SEC_ACTIVE_KEY (1<<4) 296#define SEC_AUTH_MODE (1<<5) 297#define SEC_UNICAST_GROUP (1<<6) 298#define SEC_LEVEL (1<<7) 299#define SEC_ENABLED (1<<8) 300#define SEC_ENCRYPT (1<<9) 301 302#define SEC_LEVEL_0 0 /* None */ 303#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ 304#define SEC_LEVEL_2 2 /* Level 1 + TKIP */ 305#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ 306#define SEC_LEVEL_3 4 /* Level 2 + CCMP */ 307 308#define SEC_ALG_NONE 0 309#define SEC_ALG_WEP 1 310#define SEC_ALG_TKIP 2 311#define SEC_ALG_CCMP 3 312 313#define WEP_KEYS 4 314#define WEP_KEY_LEN 13 315#define SCM_KEY_LEN 32 316#define SCM_TEMPORAL_KEY_LENGTH 16 317 318struct libipw_security { 319 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1; 320 u8 auth_mode; 321 u8 encode_alg[WEP_KEYS]; 322 u8 key_sizes[WEP_KEYS]; 323 u8 keys[WEP_KEYS][SCM_KEY_LEN]; 324 u8 level; 325 u16 flags; 326} __attribute__ ((packed)); 327 328/* 329 330 802.11 data frame from AP 331 332 ,-------------------------------------------------------------------. 333Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | 334 |------|------|---------|---------|---------|------|---------|------| 335Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | 336 | | tion | (BSSID) | | | ence | data | | 337 `-------------------------------------------------------------------' 338 339Total: 28-2340 bytes 340 341*/ 342 343#define BEACON_PROBE_SSID_ID_POSITION 12 344 345struct libipw_hdr_1addr { 346 __le16 frame_ctl; 347 __le16 duration_id; 348 u8 addr1[ETH_ALEN]; 349 u8 payload[0]; 350} __attribute__ ((packed)); 351 352struct libipw_hdr_2addr { 353 __le16 frame_ctl; 354 __le16 duration_id; 355 u8 addr1[ETH_ALEN]; 356 u8 addr2[ETH_ALEN]; 357 u8 payload[0]; 358} __attribute__ ((packed)); 359 360struct libipw_hdr_3addr { 361 __le16 frame_ctl; 362 __le16 duration_id; 363 u8 addr1[ETH_ALEN]; 364 u8 addr2[ETH_ALEN]; 365 u8 addr3[ETH_ALEN]; 366 __le16 seq_ctl; 367 u8 payload[0]; 368} __attribute__ ((packed)); 369 370struct libipw_hdr_4addr { 371 __le16 frame_ctl; 372 __le16 duration_id; 373 u8 addr1[ETH_ALEN]; 374 u8 addr2[ETH_ALEN]; 375 u8 addr3[ETH_ALEN]; 376 __le16 seq_ctl; 377 u8 addr4[ETH_ALEN]; 378 u8 payload[0]; 379} __attribute__ ((packed)); 380 381struct libipw_hdr_3addrqos { 382 __le16 frame_ctl; 383 __le16 duration_id; 384 u8 addr1[ETH_ALEN]; 385 u8 addr2[ETH_ALEN]; 386 u8 addr3[ETH_ALEN]; 387 __le16 seq_ctl; 388 u8 payload[0]; 389 __le16 qos_ctl; 390} __attribute__ ((packed)); 391 392struct libipw_info_element { 393 u8 id; 394 u8 len; 395 u8 data[0]; 396} __attribute__ ((packed)); 397 398/* 399 * These are the data types that can make up management packets 400 * 401 u16 auth_algorithm; 402 u16 auth_sequence; 403 u16 beacon_interval; 404 u16 capability; 405 u8 current_ap[ETH_ALEN]; 406 u16 listen_interval; 407 struct { 408 u16 association_id:14, reserved:2; 409 } __attribute__ ((packed)); 410 u32 time_stamp[2]; 411 u16 reason; 412 u16 status; 413*/ 414 415struct libipw_auth { 416 struct libipw_hdr_3addr header; 417 __le16 algorithm; 418 __le16 transaction; 419 __le16 status; 420 /* challenge */ 421 struct libipw_info_element info_element[0]; 422} __attribute__ ((packed)); 423 424struct libipw_channel_switch { 425 u8 id; 426 u8 len; 427 u8 mode; 428 u8 channel; 429 u8 count; 430} __attribute__ ((packed)); 431 432struct libipw_action { 433 struct libipw_hdr_3addr header; 434 u8 category; 435 u8 action; 436 union { 437 struct libipw_action_exchange { 438 u8 token; 439 struct libipw_info_element info_element[0]; 440 } exchange; 441 struct libipw_channel_switch channel_switch; 442 443 } format; 444} __attribute__ ((packed)); 445 446struct libipw_disassoc { 447 struct libipw_hdr_3addr header; 448 __le16 reason; 449} __attribute__ ((packed)); 450 451/* Alias deauth for disassoc */ 452#define libipw_deauth libipw_disassoc 453 454struct libipw_probe_request { 455 struct libipw_hdr_3addr header; 456 /* SSID, supported rates */ 457 struct libipw_info_element info_element[0]; 458} __attribute__ ((packed)); 459 460struct libipw_probe_response { 461 struct libipw_hdr_3addr header; 462 __le32 time_stamp[2]; 463 __le16 beacon_interval; 464 __le16 capability; 465 /* SSID, supported rates, FH params, DS params, 466 * CF params, IBSS params, TIM (if beacon), RSN */ 467 struct libipw_info_element info_element[0]; 468} __attribute__ ((packed)); 469 470/* Alias beacon for probe_response */ 471#define libipw_beacon libipw_probe_response 472 473struct libipw_assoc_request { 474 struct libipw_hdr_3addr header; 475 __le16 capability; 476 __le16 listen_interval; 477 /* SSID, supported rates, RSN */ 478 struct libipw_info_element info_element[0]; 479} __attribute__ ((packed)); 480 481struct libipw_reassoc_request { 482 struct libipw_hdr_3addr header; 483 __le16 capability; 484 __le16 listen_interval; 485 u8 current_ap[ETH_ALEN]; 486 struct libipw_info_element info_element[0]; 487} __attribute__ ((packed)); 488 489struct libipw_assoc_response { 490 struct libipw_hdr_3addr header; 491 __le16 capability; 492 __le16 status; 493 __le16 aid; 494 /* supported rates */ 495 struct libipw_info_element info_element[0]; 496} __attribute__ ((packed)); 497 498struct libipw_txb { 499 u8 nr_frags; 500 u8 encrypted; 501 u8 rts_included; 502 u8 reserved; 503 u16 frag_size; 504 u16 payload_size; 505 struct sk_buff *fragments[0]; 506}; 507 508/* SWEEP TABLE ENTRIES NUMBER */ 509#define MAX_SWEEP_TAB_ENTRIES 42 510#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 511/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs 512 * only use 8, and then use extended rates for the remaining supported 513 * rates. Other APs, however, stick all of their supported rates on the 514 * main rates information element... */ 515#define MAX_RATES_LENGTH ((u8)12) 516#define MAX_RATES_EX_LENGTH ((u8)16) 517#define MAX_NETWORK_COUNT 128 518 519#define CRC_LENGTH 4U 520 521#define MAX_WPA_IE_LEN 64 522 523#define NETWORK_HAS_OFDM (1<<1) 524#define NETWORK_HAS_CCK (1<<2) 525 526/* QoS structure */ 527#define NETWORK_HAS_QOS_PARAMETERS (1<<3) 528#define NETWORK_HAS_QOS_INFORMATION (1<<4) 529#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \ 530 NETWORK_HAS_QOS_INFORMATION) 531 532/* 802.11h */ 533#define NETWORK_HAS_POWER_CONSTRAINT (1<<5) 534#define NETWORK_HAS_CSA (1<<6) 535#define NETWORK_HAS_QUIET (1<<7) 536#define NETWORK_HAS_IBSS_DFS (1<<8) 537#define NETWORK_HAS_TPC_REPORT (1<<9) 538 539#define NETWORK_HAS_ERP_VALUE (1<<10) 540 541#define QOS_QUEUE_NUM 4 542#define QOS_OUI_LEN 3 543#define QOS_OUI_TYPE 2 544#define QOS_ELEMENT_ID 221 545#define QOS_OUI_INFO_SUB_TYPE 0 546#define QOS_OUI_PARAM_SUB_TYPE 1 547#define QOS_VERSION_1 1 548#define QOS_AIFSN_MIN_VALUE 2 549 550struct libipw_qos_information_element { 551 u8 elementID; 552 u8 length; 553 u8 qui[QOS_OUI_LEN]; 554 u8 qui_type; 555 u8 qui_subtype; 556 u8 version; 557 u8 ac_info; 558} __attribute__ ((packed)); 559 560struct libipw_qos_ac_parameter { 561 u8 aci_aifsn; 562 u8 ecw_min_max; 563 __le16 tx_op_limit; 564} __attribute__ ((packed)); 565 566struct libipw_qos_parameter_info { 567 struct libipw_qos_information_element info_element; 568 u8 reserved; 569 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM]; 570} __attribute__ ((packed)); 571 572struct libipw_qos_parameters { 573 __le16 cw_min[QOS_QUEUE_NUM]; 574 __le16 cw_max[QOS_QUEUE_NUM]; 575 u8 aifs[QOS_QUEUE_NUM]; 576 u8 flag[QOS_QUEUE_NUM]; 577 __le16 tx_op_limit[QOS_QUEUE_NUM]; 578} __attribute__ ((packed)); 579 580struct libipw_qos_data { 581 struct libipw_qos_parameters parameters; 582 int active; 583 int supported; 584 u8 param_count; 585 u8 old_param_count; 586}; 587 588struct libipw_tim_parameters { 589 u8 tim_count; 590 u8 tim_period; 591} __attribute__ ((packed)); 592 593/*******************************************************/ 594 595enum { /* libipw_basic_report.map */ 596 LIBIPW_BASIC_MAP_BSS = (1 << 0), 597 LIBIPW_BASIC_MAP_OFDM = (1 << 1), 598 LIBIPW_BASIC_MAP_UNIDENTIFIED = (1 << 2), 599 LIBIPW_BASIC_MAP_RADAR = (1 << 3), 600 LIBIPW_BASIC_MAP_UNMEASURED = (1 << 4), 601 /* Bits 5-7 are reserved */ 602 603}; 604struct libipw_basic_report { 605 u8 channel; 606 __le64 start_time; 607 __le16 duration; 608 u8 map; 609} __attribute__ ((packed)); 610 611enum { /* libipw_measurement_request.mode */ 612 /* Bit 0 is reserved */ 613 LIBIPW_MEASUREMENT_ENABLE = (1 << 1), 614 LIBIPW_MEASUREMENT_REQUEST = (1 << 2), 615 LIBIPW_MEASUREMENT_REPORT = (1 << 3), 616 /* Bits 4-7 are reserved */ 617}; 618 619enum { 620 LIBIPW_REPORT_BASIC = 0, /* required */ 621 LIBIPW_REPORT_CCA = 1, /* optional */ 622 LIBIPW_REPORT_RPI = 2, /* optional */ 623 /* 3-255 reserved */ 624}; 625 626struct libipw_measurement_params { 627 u8 channel; 628 __le64 start_time; 629 __le16 duration; 630} __attribute__ ((packed)); 631 632struct libipw_measurement_request { 633 struct libipw_info_element ie; 634 u8 token; 635 u8 mode; 636 u8 type; 637 struct libipw_measurement_params params[0]; 638} __attribute__ ((packed)); 639 640struct libipw_measurement_report { 641 struct libipw_info_element ie; 642 u8 token; 643 u8 mode; 644 u8 type; 645 union { 646 struct libipw_basic_report basic[0]; 647 } u; 648} __attribute__ ((packed)); 649 650struct libipw_tpc_report { 651 u8 transmit_power; 652 u8 link_margin; 653} __attribute__ ((packed)); 654 655struct libipw_channel_map { 656 u8 channel; 657 u8 map; 658} __attribute__ ((packed)); 659 660struct libipw_ibss_dfs { 661 struct libipw_info_element ie; 662 u8 owner[ETH_ALEN]; 663 u8 recovery_interval; 664 struct libipw_channel_map channel_map[0]; 665}; 666 667struct libipw_csa { 668 u8 mode; 669 u8 channel; 670 u8 count; 671} __attribute__ ((packed)); 672 673struct libipw_quiet { 674 u8 count; 675 u8 period; 676 u8 duration; 677 u8 offset; 678} __attribute__ ((packed)); 679 680struct libipw_network { 681 /* These entries are used to identify a unique network */ 682 u8 bssid[ETH_ALEN]; 683 u8 channel; 684 /* Ensure null-terminated for any debug msgs */ 685 u8 ssid[IW_ESSID_MAX_SIZE + 1]; 686 u8 ssid_len; 687 688 struct libipw_qos_data qos_data; 689 690 /* These are network statistics */ 691 struct libipw_rx_stats stats; 692 u16 capability; 693 u8 rates[MAX_RATES_LENGTH]; 694 u8 rates_len; 695 u8 rates_ex[MAX_RATES_EX_LENGTH]; 696 u8 rates_ex_len; 697 unsigned long last_scanned; 698 u8 mode; 699 u32 flags; 700 u32 last_associate; 701 u32 time_stamp[2]; 702 u16 beacon_interval; 703 u16 listen_interval; 704 u16 atim_window; 705 u8 erp_value; 706 u8 wpa_ie[MAX_WPA_IE_LEN]; 707 size_t wpa_ie_len; 708 u8 rsn_ie[MAX_WPA_IE_LEN]; 709 size_t rsn_ie_len; 710 struct libipw_tim_parameters tim; 711 712 /* 802.11h info */ 713 714 /* Power Constraint - mandatory if spctrm mgmt required */ 715 u8 power_constraint; 716 717 /* TPC Report - mandatory if spctrm mgmt required */ 718 struct libipw_tpc_report tpc_report; 719 720 /* IBSS DFS - mandatory if spctrm mgmt required and IBSS 721 * NOTE: This is variable length and so must be allocated dynamically */ 722 struct libipw_ibss_dfs *ibss_dfs; 723 724 /* Channel Switch Announcement - optional if spctrm mgmt required */ 725 struct libipw_csa csa; 726 727 /* Quiet - optional if spctrm mgmt required */ 728 struct libipw_quiet quiet; 729 730 struct list_head list; 731}; 732 733enum libipw_state { 734 LIBIPW_UNINITIALIZED = 0, 735 LIBIPW_INITIALIZED, 736 LIBIPW_ASSOCIATING, 737 LIBIPW_ASSOCIATED, 738 LIBIPW_AUTHENTICATING, 739 LIBIPW_AUTHENTICATED, 740 LIBIPW_SHUTDOWN 741}; 742 743#define DEFAULT_MAX_SCAN_AGE (15 * HZ) 744#define DEFAULT_FTS 2346 745 746#define CFG_LIBIPW_RESERVE_FCS (1<<0) 747#define CFG_LIBIPW_COMPUTE_FCS (1<<1) 748#define CFG_LIBIPW_RTS (1<<2) 749 750#define LIBIPW_24GHZ_MIN_CHANNEL 1 751#define LIBIPW_24GHZ_MAX_CHANNEL 14 752#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \ 753 LIBIPW_24GHZ_MIN_CHANNEL + 1) 754 755#define LIBIPW_52GHZ_MIN_CHANNEL 34 756#define LIBIPW_52GHZ_MAX_CHANNEL 165 757#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \ 758 LIBIPW_52GHZ_MIN_CHANNEL + 1) 759 760enum { 761 LIBIPW_CH_PASSIVE_ONLY = (1 << 0), 762 LIBIPW_CH_80211H_RULES = (1 << 1), 763 LIBIPW_CH_B_ONLY = (1 << 2), 764 LIBIPW_CH_NO_IBSS = (1 << 3), 765 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4), 766 LIBIPW_CH_RADAR_DETECT = (1 << 5), 767 LIBIPW_CH_INVALID = (1 << 6), 768}; 769 770struct libipw_channel { 771 u32 freq; /* in MHz */ 772 u8 channel; 773 u8 flags; 774 u8 max_power; /* in dBm */ 775}; 776 777struct libipw_geo { 778 u8 name[4]; 779 u8 bg_channels; 780 u8 a_channels; 781 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS]; 782 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS]; 783}; 784 785struct libipw_device { 786 struct net_device *dev; 787 struct wireless_dev wdev; 788 struct libipw_security sec; 789 790 /* Bookkeeping structures */ 791 struct libipw_stats ieee_stats; 792 793 struct libipw_geo geo; 794 struct ieee80211_supported_band bg_band; 795 struct ieee80211_supported_band a_band; 796 797 /* Probe / Beacon management */ 798 struct list_head network_free_list; 799 struct list_head network_list; 800 struct libipw_network *networks[MAX_NETWORK_COUNT]; 801 int scans; 802 int scan_age; 803 804 int iw_mode; /* operating mode (IW_MODE_*) */ 805 struct iw_spy_data spy_data; /* iwspy support */ 806 807 spinlock_t lock; 808 809 int tx_headroom; /* Set to size of any additional room needed at front 810 * of allocated Tx SKBs */ 811 u32 config; 812 813 /* WEP and other encryption related settings at the device level */ 814 int open_wep; /* Set to 1 to allow unencrypted frames */ 815 816 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on 817 * WEP key changes */ 818 819 /* If the host performs {en,de}cryption, then set to 1 */ 820 int host_encrypt; 821 int host_encrypt_msdu; 822 int host_decrypt; 823 /* host performs multicast decryption */ 824 int host_mc_decrypt; 825 826 /* host should strip IV and ICV from protected frames */ 827 /* meaningful only when hardware decryption is being used */ 828 int host_strip_iv_icv; 829 830 int host_open_frag; 831 int host_build_iv; 832 int ieee802_1x; /* is IEEE 802.1X used */ 833 834 /* WPA data */ 835 int wpa_enabled; 836 int drop_unencrypted; 837 int privacy_invoked; 838 size_t wpa_ie_len; 839 u8 *wpa_ie; 840 841 struct lib80211_crypt_info crypt_info; 842 843 int bcrx_sta_key; /* use individual keys to override default keys even 844 * with RX of broad/multicast frames */ 845 846 /* Fragmentation structures */ 847 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN]; 848 unsigned int frag_next_idx; 849 u16 fts; /* Fragmentation Threshold */ 850 u16 rts; /* RTS threshold */ 851 852 /* Association info */ 853 u8 bssid[ETH_ALEN]; 854 855 enum libipw_state state; 856 857 int mode; /* A, B, G */ 858 int modulation; /* CCK, OFDM */ 859 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ 860 int abg_true; /* ABG flag */ 861 862 int perfect_rssi; 863 int worst_rssi; 864 865 u16 prev_seq_ctl; /* used to drop duplicate frames */ 866 867 /* Callback functions */ 868 void (*set_security) (struct net_device * dev, 869 struct libipw_security * sec); 870 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb, 871 struct net_device * dev, int pri); 872 int (*reset_port) (struct net_device * dev); 873 int (*is_queue_full) (struct net_device * dev, int pri); 874 875 int (*handle_management) (struct net_device * dev, 876 struct libipw_network * network, u16 type); 877 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb); 878 879 /* Typical STA methods */ 880 int (*handle_auth) (struct net_device * dev, 881 struct libipw_auth * auth); 882 int (*handle_deauth) (struct net_device * dev, 883 struct libipw_deauth * auth); 884 int (*handle_action) (struct net_device * dev, 885 struct libipw_action * action, 886 struct libipw_rx_stats * stats); 887 int (*handle_disassoc) (struct net_device * dev, 888 struct libipw_disassoc * assoc); 889 int (*handle_beacon) (struct net_device * dev, 890 struct libipw_beacon * beacon, 891 struct libipw_network * network); 892 int (*handle_probe_response) (struct net_device * dev, 893 struct libipw_probe_response * resp, 894 struct libipw_network * network); 895 int (*handle_probe_request) (struct net_device * dev, 896 struct libipw_probe_request * req, 897 struct libipw_rx_stats * stats); 898 int (*handle_assoc_response) (struct net_device * dev, 899 struct libipw_assoc_response * resp, 900 struct libipw_network * network); 901 902 /* Typical AP methods */ 903 int (*handle_assoc_request) (struct net_device * dev); 904 int (*handle_reassoc_request) (struct net_device * dev, 905 struct libipw_reassoc_request * req); 906 907 /* This must be the last item so that it points to the data 908 * allocated beyond this structure by alloc_ieee80211 */ 909 u8 priv[0]; 910}; 911 912#define IEEE_A (1<<0) 913#define IEEE_B (1<<1) 914#define IEEE_G (1<<2) 915#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) 916 917static inline void *libipw_priv(struct net_device *dev) 918{ 919 return ((struct libipw_device *)netdev_priv(dev))->priv; 920} 921 922static inline int libipw_is_valid_mode(struct libipw_device *ieee, 923 int mode) 924{ 925 /* 926 * It is possible for both access points and our device to support 927 * combinations of modes, so as long as there is one valid combination 928 * of ap/device supported modes, then return success 929 * 930 */ 931 if ((mode & IEEE_A) && 932 (ieee->modulation & LIBIPW_OFDM_MODULATION) && 933 (ieee->freq_band & LIBIPW_52GHZ_BAND)) 934 return 1; 935 936 if ((mode & IEEE_G) && 937 (ieee->modulation & LIBIPW_OFDM_MODULATION) && 938 (ieee->freq_band & LIBIPW_24GHZ_BAND)) 939 return 1; 940 941 if ((mode & IEEE_B) && 942 (ieee->modulation & LIBIPW_CCK_MODULATION) && 943 (ieee->freq_band & LIBIPW_24GHZ_BAND)) 944 return 1; 945 946 return 0; 947} 948 949static inline int libipw_get_hdrlen(u16 fc) 950{ 951 int hdrlen = LIBIPW_3ADDR_LEN; 952 u16 stype = WLAN_FC_GET_STYPE(fc); 953 954 switch (WLAN_FC_GET_TYPE(fc)) { 955 case IEEE80211_FTYPE_DATA: 956 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) 957 hdrlen = LIBIPW_4ADDR_LEN; 958 if (stype & IEEE80211_STYPE_QOS_DATA) 959 hdrlen += 2; 960 break; 961 case IEEE80211_FTYPE_CTL: 962 switch (WLAN_FC_GET_STYPE(fc)) { 963 case IEEE80211_STYPE_CTS: 964 case IEEE80211_STYPE_ACK: 965 hdrlen = LIBIPW_1ADDR_LEN; 966 break; 967 default: 968 hdrlen = LIBIPW_2ADDR_LEN; 969 break; 970 } 971 break; 972 } 973 974 return hdrlen; 975} 976 977static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr) 978{ 979 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) { 980 case LIBIPW_1ADDR_LEN: 981 return ((struct libipw_hdr_1addr *)hdr)->payload; 982 case LIBIPW_2ADDR_LEN: 983 return ((struct libipw_hdr_2addr *)hdr)->payload; 984 case LIBIPW_3ADDR_LEN: 985 return ((struct libipw_hdr_3addr *)hdr)->payload; 986 case LIBIPW_4ADDR_LEN: 987 return ((struct libipw_hdr_4addr *)hdr)->payload; 988 } 989 return NULL; 990} 991 992static inline int libipw_is_ofdm_rate(u8 rate) 993{ 994 switch (rate & ~LIBIPW_BASIC_RATE_MASK) { 995 case LIBIPW_OFDM_RATE_6MB: 996 case LIBIPW_OFDM_RATE_9MB: 997 case LIBIPW_OFDM_RATE_12MB: 998 case LIBIPW_OFDM_RATE_18MB: 999 case LIBIPW_OFDM_RATE_24MB: 1000 case LIBIPW_OFDM_RATE_36MB: 1001 case LIBIPW_OFDM_RATE_48MB: 1002 case LIBIPW_OFDM_RATE_54MB: 1003 return 1; 1004 } 1005 return 0; 1006} 1007 1008static inline int libipw_is_cck_rate(u8 rate) 1009{ 1010 switch (rate & ~LIBIPW_BASIC_RATE_MASK) { 1011 case LIBIPW_CCK_RATE_1MB: 1012 case LIBIPW_CCK_RATE_2MB: 1013 case LIBIPW_CCK_RATE_5MB: 1014 case LIBIPW_CCK_RATE_11MB: 1015 return 1; 1016 } 1017 return 0; 1018} 1019 1020/* ieee80211.c */ 1021extern void free_ieee80211(struct net_device *dev, int monitor); 1022extern struct net_device *alloc_ieee80211(int sizeof_priv, int monitor); 1023extern int libipw_change_mtu(struct net_device *dev, int new_mtu); 1024 1025extern void libipw_networks_age(struct libipw_device *ieee, 1026 unsigned long age_secs); 1027 1028extern int libipw_set_encryption(struct libipw_device *ieee); 1029 1030/* libipw_tx.c */ 1031extern netdev_tx_t libipw_xmit(struct sk_buff *skb, 1032 struct net_device *dev); 1033extern void libipw_txb_free(struct libipw_txb *); 1034 1035/* libipw_rx.c */ 1036extern void libipw_rx_any(struct libipw_device *ieee, 1037 struct sk_buff *skb, struct libipw_rx_stats *stats); 1038extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, 1039 struct libipw_rx_stats *rx_stats); 1040/* make sure to set stats->len */ 1041extern void libipw_rx_mgt(struct libipw_device *ieee, 1042 struct libipw_hdr_4addr *header, 1043 struct libipw_rx_stats *stats); 1044extern void libipw_network_reset(struct libipw_network *network); 1045 1046/* libipw_geo.c */ 1047extern const struct libipw_geo *libipw_get_geo(struct libipw_device 1048 *ieee); 1049extern int libipw_set_geo(struct libipw_device *ieee, 1050 const struct libipw_geo *geo); 1051 1052extern int libipw_is_valid_channel(struct libipw_device *ieee, 1053 u8 channel); 1054extern int libipw_channel_to_index(struct libipw_device *ieee, 1055 u8 channel); 1056extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq); 1057extern u8 libipw_get_channel_flags(struct libipw_device *ieee, 1058 u8 channel); 1059extern const struct libipw_channel *libipw_get_channel(struct 1060 libipw_device 1061 *ieee, u8 channel); 1062extern u32 libipw_channel_to_freq(struct libipw_device * ieee, 1063 u8 channel); 1064 1065/* libipw_wx.c */ 1066extern int libipw_wx_get_scan(struct libipw_device *ieee, 1067 struct iw_request_info *info, 1068 union iwreq_data *wrqu, char *key); 1069extern int libipw_wx_set_encode(struct libipw_device *ieee, 1070 struct iw_request_info *info, 1071 union iwreq_data *wrqu, char *key); 1072extern int libipw_wx_get_encode(struct libipw_device *ieee, 1073 struct iw_request_info *info, 1074 union iwreq_data *wrqu, char *key); 1075extern int libipw_wx_set_encodeext(struct libipw_device *ieee, 1076 struct iw_request_info *info, 1077 union iwreq_data *wrqu, char *extra); 1078extern int libipw_wx_get_encodeext(struct libipw_device *ieee, 1079 struct iw_request_info *info, 1080 union iwreq_data *wrqu, char *extra); 1081 1082static inline void libipw_increment_scans(struct libipw_device *ieee) 1083{ 1084 ieee->scans++; 1085} 1086 1087static inline int libipw_get_scans(struct libipw_device *ieee) 1088{ 1089 return ieee->scans; 1090} 1091 1092#endif /* LIBIPW_H */ 1093