2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
10 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004, Intel Corporation
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
23 #include <linux/if_ether.h> /* ETH_ALEN */
24 #include <linux/kernel.h> /* ARRAY_SIZE */
25 #include <linux/wireless.h>
27 #define IEEE80211_DATA_LEN 2304
28 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
31 The figure in section 7.1.2 suggests a body size of up to 2312
32 bytes is allowed, which is a bit confusing, I suspect this
33 represents the 2304 bytes of real data, plus a possible 8 bytes of
34 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
37 #define IEEE80211_HLEN 30
38 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
40 struct ieee80211_hdr {
48 } __attribute__ ((packed));
50 struct ieee80211_hdr_3addr {
57 } __attribute__ ((packed));
67 static const char *eap_types[] = {
68 [EAP_PACKET] = "EAP-Packet",
69 [EAPOL_START] = "EAPOL-Start",
70 [EAPOL_LOGOFF] = "EAPOL-Logoff",
71 [EAPOL_KEY] = "EAPOL-Key",
72 [EAPOL_ENCAP_ASF_ALERT] = "EAPOL-Encap-ASF-Alert"
75 static inline const char *eap_get_type(int type)
77 return (type >= ARRAY_SIZE(eap_types)) ? "Unknown" : eap_types[type];
86 } __attribute__ ((packed));
88 #define IEEE80211_1ADDR_LEN 10
89 #define IEEE80211_2ADDR_LEN 16
90 #define IEEE80211_3ADDR_LEN 24
91 #define IEEE80211_4ADDR_LEN 30
92 #define IEEE80211_FCS_LEN 4
94 #define MIN_FRAG_THRESHOLD 256U
95 #define MAX_FRAG_THRESHOLD 2346U
97 /* Frame control field constants */
98 #define IEEE80211_FCTL_VERS 0x0003
99 #define IEEE80211_FCTL_FTYPE 0x000c
100 #define IEEE80211_FCTL_STYPE 0x00f0
101 #define IEEE80211_FCTL_TODS 0x0100
102 #define IEEE80211_FCTL_FROMDS 0x0200
103 #define IEEE80211_FCTL_MOREFRAGS 0x0400
104 #define IEEE80211_FCTL_RETRY 0x0800
105 #define IEEE80211_FCTL_PM 0x1000
106 #define IEEE80211_FCTL_MOREDATA 0x2000
107 #define IEEE80211_FCTL_PROTECTED 0x4000
108 #define IEEE80211_FCTL_ORDER 0x8000
110 #define IEEE80211_FTYPE_MGMT 0x0000
111 #define IEEE80211_FTYPE_CTL 0x0004
112 #define IEEE80211_FTYPE_DATA 0x0008
115 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
116 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
117 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
118 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
119 #define IEEE80211_STYPE_PROBE_REQ 0x0040
120 #define IEEE80211_STYPE_PROBE_RESP 0x0050
121 #define IEEE80211_STYPE_BEACON 0x0080
122 #define IEEE80211_STYPE_ATIM 0x0090
123 #define IEEE80211_STYPE_DISASSOC 0x00A0
124 #define IEEE80211_STYPE_AUTH 0x00B0
125 #define IEEE80211_STYPE_DEAUTH 0x00C0
126 #define IEEE80211_STYPE_ACTION 0x00D0
129 #define IEEE80211_STYPE_PSPOLL 0x00A0
130 #define IEEE80211_STYPE_RTS 0x00B0
131 #define IEEE80211_STYPE_CTS 0x00C0
132 #define IEEE80211_STYPE_ACK 0x00D0
133 #define IEEE80211_STYPE_CFEND 0x00E0
134 #define IEEE80211_STYPE_CFENDACK 0x00F0
137 #define IEEE80211_STYPE_DATA 0x0000
138 #define IEEE80211_STYPE_DATA_CFACK 0x0010
139 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
140 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
141 #define IEEE80211_STYPE_NULLFUNC 0x0040
142 #define IEEE80211_STYPE_CFACK 0x0050
143 #define IEEE80211_STYPE_CFPOLL 0x0060
144 #define IEEE80211_STYPE_CFACKPOLL 0x0070
146 #define IEEE80211_SCTL_FRAG 0x000F
147 #define IEEE80211_SCTL_SEQ 0xFFF0
152 #ifdef CONFIG_IEEE80211_DEBUG
153 extern u32 ieee80211_debug_level;
154 #define IEEE80211_DEBUG(level, fmt, args...) \
155 do { if (ieee80211_debug_level & (level)) \
156 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
157 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
159 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
160 #endif /* CONFIG_IEEE80211_DEBUG */
163 /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
165 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
166 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
168 /* escape_essid() is intended to be used in debug (and possibly error)
169 * messages. It should never be used for passing essid to user space. */
170 const char *escape_essid(const char *essid, u8 essid_len);
174 * To use the debug system:
176 * If you are defining a new debug classification, simply add it to the #define
177 * list here in the form of:
179 * #define IEEE80211_DL_xxxx VALUE
181 * shifting value to the left one bit from the previous entry. xxxx should be
182 * the name of the classification (for example, WEP)
184 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
185 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
186 * to send output to that classification.
188 * To add your debug level to the list of levels seen when you perform
190 * % cat /proc/net/ipw/debug_level
192 * you simply need to add your entry to the ipw_debug_levels array.
194 * If you do not see debug_level in /proc/net/ipw then you do not have
195 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
199 #define IEEE80211_DL_INFO (1<<0)
200 #define IEEE80211_DL_WX (1<<1)
201 #define IEEE80211_DL_SCAN (1<<2)
202 #define IEEE80211_DL_STATE (1<<3)
203 #define IEEE80211_DL_MGMT (1<<4)
204 #define IEEE80211_DL_FRAG (1<<5)
205 #define IEEE80211_DL_EAP (1<<6)
206 #define IEEE80211_DL_DROP (1<<7)
208 #define IEEE80211_DL_TX (1<<8)
209 #define IEEE80211_DL_RX (1<<9)
211 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
212 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
213 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
215 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
216 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
217 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
218 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
219 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
220 #define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
221 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
222 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
223 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
224 #include <linux/netdevice.h>
225 #include <linux/wireless.h>
226 #include <linux/if_arp.h> /* ARPHRD_ETHER */
229 #define WIRELESS_SPY /* enable iwspy support */
231 #include <net/iw_handler.h> /* new driver API */
234 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
235 #endif /* ETH_P_PAE */
237 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
239 #ifndef ETH_P_80211_RAW
240 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
243 /* IEEE 802.11 defines */
245 #define P80211_OUI_LEN 3
247 struct ieee80211_snap_hdr {
249 u8 dsap; /* always 0xAA */
250 u8 ssap; /* always 0xAA */
251 u8 ctrl; /* always 0x03 */
252 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
254 } __attribute__ ((packed));
256 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
258 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
259 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
260 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
262 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
263 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
265 /* Authentication algorithms */
266 #define WLAN_AUTH_OPEN 0
267 #define WLAN_AUTH_SHARED_KEY 1
269 #define WLAN_AUTH_CHALLENGE_LEN 128
271 #define WLAN_CAPABILITY_ESS (1<<0)
272 #define WLAN_CAPABILITY_IBSS (1<<1)
273 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
274 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
275 #define WLAN_CAPABILITY_PRIVACY (1<<4)
276 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
277 #define WLAN_CAPABILITY_PBCC (1<<6)
278 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
279 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
280 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
281 #define WLAN_CAPABILITY_OSSS_OFDM (1<<13)
284 enum ieee80211_statuscode {
285 WLAN_STATUS_SUCCESS = 0,
286 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
287 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
288 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
289 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
290 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
291 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
292 WLAN_STATUS_CHALLENGE_FAIL = 15,
293 WLAN_STATUS_AUTH_TIMEOUT = 16,
294 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
295 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
297 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
298 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
299 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
301 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
302 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
303 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
305 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
306 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
308 WLAN_STATUS_INVALID_IE = 40,
309 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
310 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
311 WLAN_STATUS_INVALID_AKMP = 43,
312 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
313 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
314 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
318 enum ieee80211_reasoncode {
319 WLAN_REASON_UNSPECIFIED = 1,
320 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
321 WLAN_REASON_DEAUTH_LEAVING = 3,
322 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
323 WLAN_REASON_DISASSOC_AP_BUSY = 5,
324 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
325 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
326 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
327 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
329 WLAN_REASON_DISASSOC_BAD_POWER = 10,
330 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
332 WLAN_REASON_INVALID_IE = 13,
333 WLAN_REASON_MIC_FAILURE = 14,
334 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
335 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
336 WLAN_REASON_IE_DIFFERENT = 17,
337 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
338 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
339 WLAN_REASON_INVALID_AKMP = 20,
340 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
341 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
342 WLAN_REASON_IEEE8021X_FAILED = 23,
343 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
347 #define IEEE80211_STATMASK_SIGNAL (1<<0)
348 #define IEEE80211_STATMASK_RSSI (1<<1)
349 #define IEEE80211_STATMASK_NOISE (1<<2)
350 #define IEEE80211_STATMASK_RATE (1<<3)
351 #define IEEE80211_STATMASK_WEMASK 0x7
354 #define IEEE80211_CCK_MODULATION (1<<0)
355 #define IEEE80211_OFDM_MODULATION (1<<1)
357 #define IEEE80211_24GHZ_BAND (1<<0)
358 #define IEEE80211_52GHZ_BAND (1<<1)
360 #define IEEE80211_CCK_RATE_1MB 0x02
361 #define IEEE80211_CCK_RATE_2MB 0x04
362 #define IEEE80211_CCK_RATE_5MB 0x0B
363 #define IEEE80211_CCK_RATE_11MB 0x16
364 #define IEEE80211_OFDM_RATE_6MB 0x0C
365 #define IEEE80211_OFDM_RATE_9MB 0x12
366 #define IEEE80211_OFDM_RATE_12MB 0x18
367 #define IEEE80211_OFDM_RATE_18MB 0x24
368 #define IEEE80211_OFDM_RATE_24MB 0x30
369 #define IEEE80211_OFDM_RATE_36MB 0x48
370 #define IEEE80211_OFDM_RATE_48MB 0x60
371 #define IEEE80211_OFDM_RATE_54MB 0x6C
372 #define IEEE80211_BASIC_RATE_MASK 0x80
374 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
375 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
376 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
377 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
378 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
379 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
380 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
381 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
382 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
383 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
384 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
385 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
387 #define IEEE80211_CCK_RATES_MASK 0x0000000F
388 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
389 IEEE80211_CCK_RATE_2MB_MASK)
390 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
391 IEEE80211_CCK_RATE_5MB_MASK | \
392 IEEE80211_CCK_RATE_11MB_MASK)
394 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
395 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
396 IEEE80211_OFDM_RATE_12MB_MASK | \
397 IEEE80211_OFDM_RATE_24MB_MASK)
398 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
399 IEEE80211_OFDM_RATE_9MB_MASK | \
400 IEEE80211_OFDM_RATE_18MB_MASK | \
401 IEEE80211_OFDM_RATE_36MB_MASK | \
402 IEEE80211_OFDM_RATE_48MB_MASK | \
403 IEEE80211_OFDM_RATE_54MB_MASK)
404 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
405 IEEE80211_CCK_DEFAULT_RATES_MASK)
407 #define IEEE80211_NUM_OFDM_RATES 8
408 #define IEEE80211_NUM_CCK_RATES 4
409 #define IEEE80211_OFDM_SHIFT_MASK_A 4
414 /* NOTE: This data is for statistical purposes; not all hardware provides this
415 * information for frames received. Not setting these will not cause
416 * any adverse affects. */
417 struct ieee80211_rx_stats {
422 u16 rate; /* in 100 kbps */
430 /* IEEE 802.11 requires that STA supports concurrent reception of at least
431 * three fragmented frames. This define can be increased to support more
432 * concurrent frames, but it should be noted that each entry can consume about
433 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
434 #define IEEE80211_FRAG_CACHE_LEN 4
436 struct ieee80211_frag_entry {
437 unsigned long first_frag_time;
439 unsigned int last_frag;
441 u8 src_addr[ETH_ALEN];
442 u8 dst_addr[ETH_ALEN];
445 struct ieee80211_stats {
446 unsigned int tx_unicast_frames;
447 unsigned int tx_multicast_frames;
448 unsigned int tx_fragments;
449 unsigned int tx_unicast_octets;
450 unsigned int tx_multicast_octets;
451 unsigned int tx_deferred_transmissions;
452 unsigned int tx_single_retry_frames;
453 unsigned int tx_multiple_retry_frames;
454 unsigned int tx_retry_limit_exceeded;
455 unsigned int tx_discards;
456 unsigned int rx_unicast_frames;
457 unsigned int rx_multicast_frames;
458 unsigned int rx_fragments;
459 unsigned int rx_unicast_octets;
460 unsigned int rx_multicast_octets;
461 unsigned int rx_fcs_errors;
462 unsigned int rx_discards_no_buffer;
463 unsigned int tx_discards_wrong_sa;
464 unsigned int rx_discards_undecryptable;
465 unsigned int rx_message_in_msg_fragments;
466 unsigned int rx_message_in_bad_msg_fragments;
469 struct ieee80211_device;
471 #include "ieee80211_crypt.h"
473 #define SEC_KEY_1 (1<<0)
474 #define SEC_KEY_2 (1<<1)
475 #define SEC_KEY_3 (1<<2)
476 #define SEC_KEY_4 (1<<3)
477 #define SEC_ACTIVE_KEY (1<<4)
478 #define SEC_AUTH_MODE (1<<5)
479 #define SEC_UNICAST_GROUP (1<<6)
480 #define SEC_LEVEL (1<<7)
481 #define SEC_ENABLED (1<<8)
483 #define SEC_LEVEL_0 0 /* None */
484 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
485 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
486 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
487 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
490 #define WEP_KEY_LEN 13
492 struct ieee80211_security {
497 unicast_uses_group:1;
498 u8 key_sizes[WEP_KEYS];
499 u8 keys[WEP_KEYS][WEP_KEY_LEN];
502 } __attribute__ ((packed));
507 802.11 data frame from AP
509 ,-------------------------------------------------------------------.
510 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
511 |------|------|---------|---------|---------|------|---------|------|
512 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
513 | | tion | (BSSID) | | | ence | data | |
514 `-------------------------------------------------------------------'
520 #define BEACON_PROBE_SSID_ID_POSITION 12
522 /* Management Frame Information Element Types */
523 enum ieee80211_mfie {
526 MFIE_TYPE_FH_SET = 2,
527 MFIE_TYPE_DS_SET = 3,
528 MFIE_TYPE_CF_SET = 4,
530 MFIE_TYPE_IBSS_SET = 6,
531 MFIE_TYPE_COUNTRY = 7,
532 MFIE_TYPE_HOP_PARAMS = 8,
533 MFIE_TYPE_HOP_TABLE = 9,
534 MFIE_TYPE_REQUEST = 10,
535 MFIE_TYPE_CHALLENGE = 16,
536 MFIE_TYPE_POWER_CONSTRAINT = 32,
537 MFIE_TYPE_POWER_CAPABILITY = 33,
538 MFIE_TYPE_TPC_REQUEST = 34,
539 MFIE_TYPE_TPC_REPORT = 35,
540 MFIE_TYPE_SUPP_CHANNELS = 36,
542 MFIE_TYPE_MEASURE_REQUEST = 38,
543 MFIE_TYPE_MEASURE_REPORT = 39,
544 MFIE_TYPE_QUIET = 40,
545 MFIE_TYPE_IBSS_DFS = 41,
546 MFIE_TYPE_ERP_INFO = 42,
548 MFIE_TYPE_RATES_EX = 50,
549 MFIE_TYPE_GENERIC = 221,
552 struct ieee80211_info_element_hdr {
555 } __attribute__ ((packed));
557 struct ieee80211_info_element {
561 } __attribute__ ((packed));
564 * These are the data types that can make up management packets
570 u8 current_ap[ETH_ALEN];
573 u16 association_id:14, reserved:2;
574 } __attribute__ ((packed));
580 struct ieee80211_authentication {
581 struct ieee80211_hdr_3addr header;
585 struct ieee80211_info_element info_element;
586 } __attribute__ ((packed));
589 struct ieee80211_probe_response {
590 struct ieee80211_hdr_3addr header;
592 __le16 beacon_interval;
594 struct ieee80211_info_element info_element;
595 } __attribute__ ((packed));
597 struct ieee80211_assoc_request_frame {
599 __le16 listen_interval;
600 u8 current_ap[ETH_ALEN];
601 struct ieee80211_info_element info_element;
602 } __attribute__ ((packed));
604 struct ieee80211_assoc_response_frame {
605 struct ieee80211_hdr_3addr header;
609 struct ieee80211_info_element info_element; /* supported rates */
610 } __attribute__ ((packed));
613 struct ieee80211_txb {
619 struct sk_buff *fragments[0];
623 /* SWEEP TABLE ENTRIES NUMBER */
624 #define MAX_SWEEP_TAB_ENTRIES 42
625 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
626 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
627 * only use 8, and then use extended rates for the remaining supported
628 * rates. Other APs, however, stick all of their supported rates on the
629 * main rates information element... */
630 #define MAX_RATES_LENGTH ((u8)12)
631 #define MAX_RATES_EX_LENGTH ((u8)16)
632 #define MAX_NETWORK_COUNT 128
634 #define CRC_LENGTH 4U
636 #define MAX_WPA_IE_LEN 64
638 #define NETWORK_EMPTY_ESSID (1<<0)
639 #define NETWORK_HAS_OFDM (1<<1)
640 #define NETWORK_HAS_CCK (1<<2)
642 struct ieee80211_network {
643 /* These entries are used to identify a unique network */
646 /* Ensure null-terminated for any debug msgs */
647 u8 ssid[IW_ESSID_MAX_SIZE + 1];
650 /* These are network statistics */
651 struct ieee80211_rx_stats stats;
653 u8 rates[MAX_RATES_LENGTH];
655 u8 rates_ex[MAX_RATES_EX_LENGTH];
657 unsigned long last_scanned;
665 u8 wpa_ie[MAX_WPA_IE_LEN];
667 u8 rsn_ie[MAX_WPA_IE_LEN];
669 struct list_head list;
672 enum ieee80211_state {
673 IEEE80211_UNINITIALIZED = 0,
674 IEEE80211_INITIALIZED,
675 IEEE80211_ASSOCIATING,
676 IEEE80211_ASSOCIATED,
677 IEEE80211_AUTHENTICATING,
678 IEEE80211_AUTHENTICATED,
682 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
683 #define DEFAULT_FTS 2346
686 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
687 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
689 struct ieee80211_device {
690 struct net_device *dev;
692 /* Bookkeeping structures */
693 struct net_device_stats stats;
694 struct ieee80211_stats ieee_stats;
696 /* Probe / Beacon management */
697 struct list_head network_free_list;
698 struct list_head network_list;
699 struct ieee80211_network *networks;
703 int iw_mode; /* operating mode (IW_MODE_*) */
707 int tx_headroom; /* Set to size of any additional room needed at front
708 * of allocated Tx SKBs */
711 /* WEP and other encryption related settings at the device level */
712 int open_wep; /* Set to 1 to allow unencrypted frames */
714 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
717 /* If the host performs {en,de}cryption, then set to 1 */
720 int ieee802_1x; /* is IEEE 802.1X used */
724 int drop_unencrypted;
725 int tkip_countermeasures;
730 struct list_head crypt_deinit_list;
731 struct ieee80211_crypt_data *crypt[WEP_KEYS];
732 int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
733 struct timer_list crypt_deinit_timer;
735 int bcrx_sta_key; /* use individual keys to override default keys even
736 * with RX of broad/multicast frames */
738 /* Fragmentation structures */
739 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
740 unsigned int frag_next_idx;
741 u16 fts; /* Fragmentation Threshold */
743 /* Association info */
746 enum ieee80211_state state;
748 int mode; /* A, B, G */
749 int modulation; /* CCK, OFDM */
750 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
751 int abg_ture; /* ABG flag */
753 /* Callback functions */
754 void (*set_security)(struct net_device *dev,
755 struct ieee80211_security *sec);
756 int (*hard_start_xmit)(struct ieee80211_txb *txb,
757 struct net_device *dev);
758 int (*reset_port)(struct net_device *dev);
760 /* This must be the last item so that it points to the data
761 * allocated beyond this structure by alloc_ieee80211 */
765 #define IEEE_A (1<<0)
766 #define IEEE_B (1<<1)
767 #define IEEE_G (1<<2)
768 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
770 extern inline void *ieee80211_priv(struct net_device *dev)
772 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
775 extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
777 /* Single white space is for Linksys APs */
778 if (essid_len == 1 && essid[0] == ' ')
781 /* Otherwise, if the entire essid is 0, we assume it is hidden */
784 if (essid[essid_len] != '\0')
791 extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
794 * It is possible for both access points and our device to support
795 * combinations of modes, so as long as there is one valid combination
796 * of ap/device supported modes, then return success
799 if ((mode & IEEE_A) &&
800 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
801 (ieee->freq_band & IEEE80211_52GHZ_BAND))
804 if ((mode & IEEE_G) &&
805 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
806 (ieee->freq_band & IEEE80211_24GHZ_BAND))
809 if ((mode & IEEE_B) &&
810 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
811 (ieee->freq_band & IEEE80211_24GHZ_BAND))
817 extern inline int ieee80211_get_hdrlen(u16 fc)
819 int hdrlen = IEEE80211_3ADDR_LEN;
821 switch (WLAN_FC_GET_TYPE(fc)) {
822 case IEEE80211_FTYPE_DATA:
823 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
824 hdrlen = IEEE80211_4ADDR_LEN;
826 case IEEE80211_FTYPE_CTL:
827 switch (WLAN_FC_GET_STYPE(fc)) {
828 case IEEE80211_STYPE_CTS:
829 case IEEE80211_STYPE_ACK:
830 hdrlen = IEEE80211_1ADDR_LEN;
833 hdrlen = IEEE80211_2ADDR_LEN;
845 extern void free_ieee80211(struct net_device *dev);
846 extern struct net_device *alloc_ieee80211(int sizeof_priv);
848 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
851 extern int ieee80211_xmit(struct sk_buff *skb,
852 struct net_device *dev);
853 extern void ieee80211_txb_free(struct ieee80211_txb *);
857 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
858 struct ieee80211_rx_stats *rx_stats);
859 extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
860 struct ieee80211_hdr *header,
861 struct ieee80211_rx_stats *stats);
864 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
865 struct iw_request_info *info,
866 union iwreq_data *wrqu, char *key);
867 extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
868 struct iw_request_info *info,
869 union iwreq_data *wrqu, char *key);
870 extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
871 struct iw_request_info *info,
872 union iwreq_data *wrqu, char *key);
875 extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
880 extern inline int ieee80211_get_scans(struct ieee80211_device *ieee)
886 #endif /* IEEE80211_H */