John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 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> |
John W. Linville | b8ecd98 | 2009-08-25 14:12:25 -0400 | [diff] [blame] | 34 | #include <net/cfg80211.h> |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 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 |
| 64 | extern u32 libipw_debug_level; |
| 65 | #define LIBIPW_DEBUG(level, fmt, args...) \ |
| 66 | do { if (libipw_debug_level & (level)) \ |
| 67 | printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ |
| 68 | in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) |
| 69 | static 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) |
| 75 | static 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 | |
| 150 | struct 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 | */ |
| 235 | struct 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 | |
| 256 | struct 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 | |
| 265 | struct 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 | |
| 289 | struct 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 | |
| 318 | struct 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 | ,-------------------------------------------------------------------. |
| 333 | Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | |
| 334 | |------|------|---------|---------|---------|------|---------|------| |
| 335 | Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | |
| 336 | | | tion | (BSSID) | | | ence | data | | |
| 337 | `-------------------------------------------------------------------' |
| 338 | |
| 339 | Total: 28-2340 bytes |
| 340 | |
| 341 | */ |
| 342 | |
| 343 | #define BEACON_PROBE_SSID_ID_POSITION 12 |
| 344 | |
| 345 | struct libipw_hdr_1addr { |
| 346 | __le16 frame_ctl; |
| 347 | __le16 duration_id; |
| 348 | u8 addr1[ETH_ALEN]; |
| 349 | u8 payload[0]; |
| 350 | } __attribute__ ((packed)); |
| 351 | |
| 352 | struct 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 | |
| 360 | struct 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 | |
| 370 | struct 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 | |
| 381 | struct 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 | |
| 392 | struct 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 | |
| 415 | struct 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 | |
| 424 | struct libipw_channel_switch { |
| 425 | u8 id; |
| 426 | u8 len; |
| 427 | u8 mode; |
| 428 | u8 channel; |
| 429 | u8 count; |
| 430 | } __attribute__ ((packed)); |
| 431 | |
| 432 | struct 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 | |
| 446 | struct 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 | |
| 454 | struct 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 | |
| 460 | struct 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 | |
| 473 | struct 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 | |
| 481 | struct 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 | |
| 489 | struct 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 | |
| 498 | struct 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 | |
| 550 | struct 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 | |
| 560 | struct libipw_qos_ac_parameter { |
| 561 | u8 aci_aifsn; |
| 562 | u8 ecw_min_max; |
| 563 | __le16 tx_op_limit; |
| 564 | } __attribute__ ((packed)); |
| 565 | |
| 566 | struct 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 | |
| 572 | struct 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 | |
| 580 | struct 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 | |
| 588 | struct libipw_tim_parameters { |
| 589 | u8 tim_count; |
| 590 | u8 tim_period; |
| 591 | } __attribute__ ((packed)); |
| 592 | |
| 593 | /*******************************************************/ |
| 594 | |
| 595 | enum { /* 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 | }; |
| 604 | struct libipw_basic_report { |
| 605 | u8 channel; |
| 606 | __le64 start_time; |
| 607 | __le16 duration; |
| 608 | u8 map; |
| 609 | } __attribute__ ((packed)); |
| 610 | |
| 611 | enum { /* 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 | |
| 619 | enum { |
| 620 | LIBIPW_REPORT_BASIC = 0, /* required */ |
| 621 | LIBIPW_REPORT_CCA = 1, /* optional */ |
| 622 | LIBIPW_REPORT_RPI = 2, /* optional */ |
| 623 | /* 3-255 reserved */ |
| 624 | }; |
| 625 | |
| 626 | struct libipw_measurement_params { |
| 627 | u8 channel; |
| 628 | __le64 start_time; |
| 629 | __le16 duration; |
| 630 | } __attribute__ ((packed)); |
| 631 | |
| 632 | struct 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 | |
| 640 | struct 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 | |
| 650 | struct libipw_tpc_report { |
| 651 | u8 transmit_power; |
| 652 | u8 link_margin; |
| 653 | } __attribute__ ((packed)); |
| 654 | |
| 655 | struct libipw_channel_map { |
| 656 | u8 channel; |
| 657 | u8 map; |
| 658 | } __attribute__ ((packed)); |
| 659 | |
| 660 | struct 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 | |
| 667 | struct libipw_csa { |
| 668 | u8 mode; |
| 669 | u8 channel; |
| 670 | u8 count; |
| 671 | } __attribute__ ((packed)); |
| 672 | |
| 673 | struct libipw_quiet { |
| 674 | u8 count; |
| 675 | u8 period; |
| 676 | u8 duration; |
| 677 | u8 offset; |
| 678 | } __attribute__ ((packed)); |
| 679 | |
| 680 | struct 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 | |
| 733 | enum 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 | |
| 760 | enum { |
| 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 | |
| 770 | struct libipw_channel { |
| 771 | u32 freq; /* in MHz */ |
| 772 | u8 channel; |
| 773 | u8 flags; |
| 774 | u8 max_power; /* in dBm */ |
| 775 | }; |
| 776 | |
| 777 | struct 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 | |
| 785 | struct libipw_device { |
| 786 | struct net_device *dev; |
John W. Linville | b8ecd98 | 2009-08-25 14:12:25 -0400 | [diff] [blame] | 787 | struct wireless_dev wdev; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 788 | struct libipw_security sec; |
| 789 | |
| 790 | /* Bookkeeping structures */ |
| 791 | struct libipw_stats ieee_stats; |
| 792 | |
| 793 | struct libipw_geo geo; |
John W. Linville | b8ecd98 | 2009-08-25 14:12:25 -0400 | [diff] [blame] | 794 | struct ieee80211_supported_band bg_band; |
| 795 | struct ieee80211_supported_band a_band; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 796 | |
| 797 | /* Probe / Beacon management */ |
| 798 | struct list_head network_free_list; |
| 799 | struct list_head network_list; |
| 800 | struct libipw_network *networks; |
| 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); |
Stephen Hemminger | d0cf9c0 | 2009-08-31 19:50:57 +0000 | [diff] [blame^] | 870 | netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb, |
| 871 | struct net_device * dev, int pri); |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 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 | |
| 917 | static inline void *libipw_priv(struct net_device *dev) |
| 918 | { |
| 919 | return ((struct libipw_device *)netdev_priv(dev))->priv; |
| 920 | } |
| 921 | |
| 922 | static 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 | |
| 949 | static 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 | |
| 977 | static 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 | |
| 992 | static 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 | |
| 1008 | static 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 */ |
John W. Linville | b8ecd98 | 2009-08-25 14:12:25 -0400 | [diff] [blame] | 1021 | extern void free_ieee80211(struct net_device *dev, int monitor); |
| 1022 | extern struct net_device *alloc_ieee80211(int sizeof_priv, int monitor); |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 1023 | extern int libipw_change_mtu(struct net_device *dev, int new_mtu); |
| 1024 | |
| 1025 | extern void libipw_networks_age(struct libipw_device *ieee, |
| 1026 | unsigned long age_secs); |
| 1027 | |
| 1028 | extern int libipw_set_encryption(struct libipw_device *ieee); |
| 1029 | |
| 1030 | /* libipw_tx.c */ |
Stephen Hemminger | d0cf9c0 | 2009-08-31 19:50:57 +0000 | [diff] [blame^] | 1031 | extern netdev_tx_t libipw_xmit(struct sk_buff *skb, |
| 1032 | struct net_device *dev); |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 1033 | extern void libipw_txb_free(struct libipw_txb *); |
| 1034 | |
| 1035 | /* libipw_rx.c */ |
| 1036 | extern void libipw_rx_any(struct libipw_device *ieee, |
| 1037 | struct sk_buff *skb, struct libipw_rx_stats *stats); |
| 1038 | extern 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 */ |
| 1041 | extern void libipw_rx_mgt(struct libipw_device *ieee, |
| 1042 | struct libipw_hdr_4addr *header, |
| 1043 | struct libipw_rx_stats *stats); |
| 1044 | extern void libipw_network_reset(struct libipw_network *network); |
| 1045 | |
| 1046 | /* libipw_geo.c */ |
| 1047 | extern const struct libipw_geo *libipw_get_geo(struct libipw_device |
| 1048 | *ieee); |
| 1049 | extern int libipw_set_geo(struct libipw_device *ieee, |
| 1050 | const struct libipw_geo *geo); |
| 1051 | |
| 1052 | extern int libipw_is_valid_channel(struct libipw_device *ieee, |
| 1053 | u8 channel); |
| 1054 | extern int libipw_channel_to_index(struct libipw_device *ieee, |
| 1055 | u8 channel); |
| 1056 | extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq); |
| 1057 | extern u8 libipw_get_channel_flags(struct libipw_device *ieee, |
| 1058 | u8 channel); |
| 1059 | extern const struct libipw_channel *libipw_get_channel(struct |
| 1060 | libipw_device |
| 1061 | *ieee, u8 channel); |
| 1062 | extern u32 libipw_channel_to_freq(struct libipw_device * ieee, |
| 1063 | u8 channel); |
| 1064 | |
| 1065 | /* libipw_wx.c */ |
| 1066 | extern int libipw_wx_get_scan(struct libipw_device *ieee, |
| 1067 | struct iw_request_info *info, |
| 1068 | union iwreq_data *wrqu, char *key); |
| 1069 | extern int libipw_wx_set_encode(struct libipw_device *ieee, |
| 1070 | struct iw_request_info *info, |
| 1071 | union iwreq_data *wrqu, char *key); |
| 1072 | extern int libipw_wx_get_encode(struct libipw_device *ieee, |
| 1073 | struct iw_request_info *info, |
| 1074 | union iwreq_data *wrqu, char *key); |
| 1075 | extern int libipw_wx_set_encodeext(struct libipw_device *ieee, |
| 1076 | struct iw_request_info *info, |
| 1077 | union iwreq_data *wrqu, char *extra); |
| 1078 | extern int libipw_wx_get_encodeext(struct libipw_device *ieee, |
| 1079 | struct iw_request_info *info, |
| 1080 | union iwreq_data *wrqu, char *extra); |
| 1081 | |
| 1082 | static inline void libipw_increment_scans(struct libipw_device *ieee) |
| 1083 | { |
| 1084 | ieee->scans++; |
| 1085 | } |
| 1086 | |
| 1087 | static inline int libipw_get_scans(struct libipw_device *ieee) |
| 1088 | { |
| 1089 | return ieee->scans; |
| 1090 | } |
| 1091 | |
| 1092 | #endif /* LIBIPW_H */ |