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>
28 #define IW_QUAL_QUAL_INVALID 0x10
29 #define IW_QUAL_LEVEL_INVALID 0x20
30 #define IW_QUAL_NOISE_INVALID 0x40
31 #define IW_QUAL_QUAL_UPDATED 0x1
32 #define IW_QUAL_LEVEL_UPDATED 0x2
33 #define IW_QUAL_NOISE_UPDATED 0x4
36 #define IEEE80211_DATA_LEN 2304
37 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
40 The figure in section 7.1.2 suggests a body size of up to 2312
41 bytes is allowed, which is a bit confusing, I suspect this
42 represents the 2304 bytes of real data, plus a possible 8 bytes of
43 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
46 #define IEEE80211_HLEN 30
47 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
49 struct ieee80211_hdr
{
57 } __attribute__ ((packed
));
59 struct ieee80211_hdr_3addr
{
66 } __attribute__ ((packed
));
76 static const char *eap_types
[] = {
77 [EAP_PACKET
] = "EAP-Packet",
78 [EAPOL_START
] = "EAPOL-Start",
79 [EAPOL_LOGOFF
] = "EAPOL-Logoff",
80 [EAPOL_KEY
] = "EAPOL-Key",
81 [EAPOL_ENCAP_ASF_ALERT
] = "EAPOL-Encap-ASF-Alert"
84 static inline const char *eap_get_type(int type
)
86 return (type
>= ARRAY_SIZE(eap_types
)) ? "Unknown" : eap_types
[type
];
95 } __attribute__ ((packed
));
97 #define IEEE80211_1ADDR_LEN 10
98 #define IEEE80211_2ADDR_LEN 16
99 #define IEEE80211_3ADDR_LEN 24
100 #define IEEE80211_4ADDR_LEN 30
101 #define IEEE80211_FCS_LEN 4
103 #define MIN_FRAG_THRESHOLD 256U
104 #define MAX_FRAG_THRESHOLD 2346U
106 /* Frame control field constants */
107 #define IEEE80211_FCTL_VERS 0x0003
108 #define IEEE80211_FCTL_FTYPE 0x000c
109 #define IEEE80211_FCTL_STYPE 0x00f0
110 #define IEEE80211_FCTL_TODS 0x0100
111 #define IEEE80211_FCTL_FROMDS 0x0200
112 #define IEEE80211_FCTL_MOREFRAGS 0x0400
113 #define IEEE80211_FCTL_RETRY 0x0800
114 #define IEEE80211_FCTL_PM 0x1000
115 #define IEEE80211_FCTL_MOREDATA 0x2000
116 #define IEEE80211_FCTL_WEP 0x4000
117 #define IEEE80211_FCTL_ORDER 0x8000
119 #define IEEE80211_FTYPE_MGMT 0x0000
120 #define IEEE80211_FTYPE_CTL 0x0004
121 #define IEEE80211_FTYPE_DATA 0x0008
124 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
125 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
126 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
127 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
128 #define IEEE80211_STYPE_PROBE_REQ 0x0040
129 #define IEEE80211_STYPE_PROBE_RESP 0x0050
130 #define IEEE80211_STYPE_BEACON 0x0080
131 #define IEEE80211_STYPE_ATIM 0x0090
132 #define IEEE80211_STYPE_DISASSOC 0x00A0
133 #define IEEE80211_STYPE_AUTH 0x00B0
134 #define IEEE80211_STYPE_DEAUTH 0x00C0
137 #define IEEE80211_STYPE_PSPOLL 0x00A0
138 #define IEEE80211_STYPE_RTS 0x00B0
139 #define IEEE80211_STYPE_CTS 0x00C0
140 #define IEEE80211_STYPE_ACK 0x00D0
141 #define IEEE80211_STYPE_CFEND 0x00E0
142 #define IEEE80211_STYPE_CFENDACK 0x00F0
145 #define IEEE80211_STYPE_DATA 0x0000
146 #define IEEE80211_STYPE_DATA_CFACK 0x0010
147 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
148 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
149 #define IEEE80211_STYPE_NULLFUNC 0x0040
150 #define IEEE80211_STYPE_CFACK 0x0050
151 #define IEEE80211_STYPE_CFPOLL 0x0060
152 #define IEEE80211_STYPE_CFACKPOLL 0x0070
154 #define IEEE80211_SCTL_FRAG 0x000F
155 #define IEEE80211_SCTL_SEQ 0xFFF0
160 #ifdef CONFIG_IEEE80211_DEBUG
161 extern u32 ieee80211_debug_level
;
162 #define IEEE80211_DEBUG(level, fmt, args...) \
163 do { if (ieee80211_debug_level & (level)) \
164 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
165 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
167 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
168 #endif /* CONFIG_IEEE80211_DEBUG */
171 * To use the debug system;
173 * If you are defining a new debug classification, simply add it to the #define
174 * list here in the form of:
176 * #define IEEE80211_DL_xxxx VALUE
178 * shifting value to the left one bit from the previous entry. xxxx should be
179 * the name of the classification (for example, WEP)
181 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
182 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
183 * to send output to that classification.
185 * To add your debug level to the list of levels seen when you perform
187 * % cat /proc/net/ipw/debug_level
189 * you simply need to add your entry to the ipw_debug_levels array.
191 * If you do not see debug_level in /proc/net/ipw then you do not have
192 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
196 #define IEEE80211_DL_INFO (1<<0)
197 #define IEEE80211_DL_WX (1<<1)
198 #define IEEE80211_DL_SCAN (1<<2)
199 #define IEEE80211_DL_STATE (1<<3)
200 #define IEEE80211_DL_MGMT (1<<4)
201 #define IEEE80211_DL_FRAG (1<<5)
202 #define IEEE80211_DL_EAP (1<<6)
203 #define IEEE80211_DL_DROP (1<<7)
205 #define IEEE80211_DL_TX (1<<8)
206 #define IEEE80211_DL_RX (1<<9)
208 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
209 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
210 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
212 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
213 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
214 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
215 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
216 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
217 #define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
218 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
219 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
220 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
221 #include <linux/netdevice.h>
222 #include <linux/wireless.h>
223 #include <linux/if_arp.h> /* ARPHRD_ETHER */
226 #define WIRELESS_SPY // enable iwspy support
228 #include <net/iw_handler.h> // new driver API
231 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
232 #endif /* ETH_P_PAE */
234 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
236 #ifndef ETH_P_80211_RAW
237 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
240 /* IEEE 802.11 defines */
242 #define P80211_OUI_LEN 3
244 struct ieee80211_snap_hdr
{
246 u8 dsap
; /* always 0xAA */
247 u8 ssap
; /* always 0xAA */
248 u8 ctrl
; /* always 0x03 */
249 u8 oui
[P80211_OUI_LEN
]; /* organizational universal id */
251 } __attribute__ ((packed
));
253 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
255 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
256 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
258 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
259 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
261 /* Authentication algorithms */
262 #define WLAN_AUTH_OPEN 0
263 #define WLAN_AUTH_SHARED_KEY 1
265 #define WLAN_AUTH_CHALLENGE_LEN 128
267 #define WLAN_CAPABILITY_ESS (1<<0)
268 #define WLAN_CAPABILITY_IBSS (1<<1)
269 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
270 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
271 #define WLAN_CAPABILITY_PRIVACY (1<<4)
272 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
273 #define WLAN_CAPABILITY_PBCC (1<<6)
274 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
277 #define WLAN_STATUS_SUCCESS 0
278 #define WLAN_STATUS_UNSPECIFIED_FAILURE 1
279 #define WLAN_STATUS_CAPS_UNSUPPORTED 10
280 #define WLAN_STATUS_REASSOC_NO_ASSOC 11
281 #define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
282 #define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
283 #define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
284 #define WLAN_STATUS_CHALLENGE_FAIL 15
285 #define WLAN_STATUS_AUTH_TIMEOUT 16
286 #define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
287 #define WLAN_STATUS_ASSOC_DENIED_RATES 18
289 #define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
290 #define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
291 #define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
294 #define WLAN_REASON_UNSPECIFIED 1
295 #define WLAN_REASON_PREV_AUTH_NOT_VALID 2
296 #define WLAN_REASON_DEAUTH_LEAVING 3
297 #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
298 #define WLAN_REASON_DISASSOC_AP_BUSY 5
299 #define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
300 #define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
301 #define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
302 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
305 #define IEEE80211_STATMASK_SIGNAL (1<<0)
306 #define IEEE80211_STATMASK_RSSI (1<<1)
307 #define IEEE80211_STATMASK_NOISE (1<<2)
308 #define IEEE80211_STATMASK_RATE (1<<3)
309 #define IEEE80211_STATMASK_WEMASK 0x7
312 #define IEEE80211_CCK_MODULATION (1<<0)
313 #define IEEE80211_OFDM_MODULATION (1<<1)
315 #define IEEE80211_24GHZ_BAND (1<<0)
316 #define IEEE80211_52GHZ_BAND (1<<1)
318 #define IEEE80211_CCK_RATE_1MB 0x02
319 #define IEEE80211_CCK_RATE_2MB 0x04
320 #define IEEE80211_CCK_RATE_5MB 0x0B
321 #define IEEE80211_CCK_RATE_11MB 0x16
322 #define IEEE80211_OFDM_RATE_6MB 0x0C
323 #define IEEE80211_OFDM_RATE_9MB 0x12
324 #define IEEE80211_OFDM_RATE_12MB 0x18
325 #define IEEE80211_OFDM_RATE_18MB 0x24
326 #define IEEE80211_OFDM_RATE_24MB 0x30
327 #define IEEE80211_OFDM_RATE_36MB 0x48
328 #define IEEE80211_OFDM_RATE_48MB 0x60
329 #define IEEE80211_OFDM_RATE_54MB 0x6C
330 #define IEEE80211_BASIC_RATE_MASK 0x80
332 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
333 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
334 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
335 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
336 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
337 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
338 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
339 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
340 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
341 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
342 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
343 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
345 #define IEEE80211_CCK_RATES_MASK 0x0000000F
346 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
347 IEEE80211_CCK_RATE_2MB_MASK)
348 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
349 IEEE80211_CCK_RATE_5MB_MASK | \
350 IEEE80211_CCK_RATE_11MB_MASK)
352 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
353 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
354 IEEE80211_OFDM_RATE_12MB_MASK | \
355 IEEE80211_OFDM_RATE_24MB_MASK)
356 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
357 IEEE80211_OFDM_RATE_9MB_MASK | \
358 IEEE80211_OFDM_RATE_18MB_MASK | \
359 IEEE80211_OFDM_RATE_36MB_MASK | \
360 IEEE80211_OFDM_RATE_48MB_MASK | \
361 IEEE80211_OFDM_RATE_54MB_MASK)
362 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
363 IEEE80211_CCK_DEFAULT_RATES_MASK)
365 #define IEEE80211_NUM_OFDM_RATES 8
366 #define IEEE80211_NUM_CCK_RATES 4
367 #define IEEE80211_OFDM_SHIFT_MASK_A 4
372 /* NOTE: This data is for statistical purposes; not all hardware provides this
373 * information for frames received. Not setting these will not cause
374 * any adverse affects. */
375 struct ieee80211_rx_stats
{
380 u16 rate
; /* in 100 kbps */
388 /* IEEE 802.11 requires that STA supports concurrent reception of at least
389 * three fragmented frames. This define can be increased to support more
390 * concurrent frames, but it should be noted that each entry can consume about
391 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
392 #define IEEE80211_FRAG_CACHE_LEN 4
394 struct ieee80211_frag_entry
{
395 unsigned long first_frag_time
;
397 unsigned int last_frag
;
399 u8 src_addr
[ETH_ALEN
];
400 u8 dst_addr
[ETH_ALEN
];
403 struct ieee80211_stats
{
404 unsigned int tx_unicast_frames
;
405 unsigned int tx_multicast_frames
;
406 unsigned int tx_fragments
;
407 unsigned int tx_unicast_octets
;
408 unsigned int tx_multicast_octets
;
409 unsigned int tx_deferred_transmissions
;
410 unsigned int tx_single_retry_frames
;
411 unsigned int tx_multiple_retry_frames
;
412 unsigned int tx_retry_limit_exceeded
;
413 unsigned int tx_discards
;
414 unsigned int rx_unicast_frames
;
415 unsigned int rx_multicast_frames
;
416 unsigned int rx_fragments
;
417 unsigned int rx_unicast_octets
;
418 unsigned int rx_multicast_octets
;
419 unsigned int rx_fcs_errors
;
420 unsigned int rx_discards_no_buffer
;
421 unsigned int tx_discards_wrong_sa
;
422 unsigned int rx_discards_undecryptable
;
423 unsigned int rx_message_in_msg_fragments
;
424 unsigned int rx_message_in_bad_msg_fragments
;
427 struct ieee80211_device
;
429 #include "ieee80211_crypt.h"
431 #define SEC_KEY_1 (1<<0)
432 #define SEC_KEY_2 (1<<1)
433 #define SEC_KEY_3 (1<<2)
434 #define SEC_KEY_4 (1<<3)
435 #define SEC_ACTIVE_KEY (1<<4)
436 #define SEC_AUTH_MODE (1<<5)
437 #define SEC_UNICAST_GROUP (1<<6)
438 #define SEC_LEVEL (1<<7)
439 #define SEC_ENABLED (1<<8)
441 #define SEC_LEVEL_0 0 /* None */
442 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
443 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
444 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
445 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
448 #define WEP_KEY_LEN 13
450 struct ieee80211_security
{
455 unicast_uses_group
:1;
456 u8 key_sizes
[WEP_KEYS
];
457 u8 keys
[WEP_KEYS
][WEP_KEY_LEN
];
460 } __attribute__ ((packed
));
465 802.11 data frame from AP
467 ,-------------------------------------------------------------------.
468 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
469 |------|------|---------|---------|---------|------|---------|------|
470 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
471 | | tion | (BSSID) | | | ence | data | |
472 `-------------------------------------------------------------------'
478 #define BEACON_PROBE_SSID_ID_POSITION 12
480 /* Management Frame Information Element Types */
481 #define MFIE_TYPE_SSID 0
482 #define MFIE_TYPE_RATES 1
483 #define MFIE_TYPE_FH_SET 2
484 #define MFIE_TYPE_DS_SET 3
485 #define MFIE_TYPE_CF_SET 4
486 #define MFIE_TYPE_TIM 5
487 #define MFIE_TYPE_IBSS_SET 6
488 #define MFIE_TYPE_CHALLENGE 16
489 #define MFIE_TYPE_RSN 48
490 #define MFIE_TYPE_RATES_EX 50
491 #define MFIE_TYPE_GENERIC 221
493 struct ieee80211_info_element_hdr
{
496 } __attribute__ ((packed
));
498 struct ieee80211_info_element
{
502 } __attribute__ ((packed
));
505 * These are the data types that can make up management packets
511 u8 current_ap[ETH_ALEN];
514 u16 association_id:14, reserved:2;
515 } __attribute__ ((packed));
521 struct ieee80211_authentication
{
522 struct ieee80211_hdr_3addr header
;
526 struct ieee80211_info_element info_element
;
527 } __attribute__ ((packed
));
530 struct ieee80211_probe_response
{
531 struct ieee80211_hdr_3addr header
;
535 struct ieee80211_info_element info_element
;
536 } __attribute__ ((packed
));
538 struct ieee80211_assoc_request_frame
{
541 u8 current_ap
[ETH_ALEN
];
542 struct ieee80211_info_element info_element
;
543 } __attribute__ ((packed
));
545 struct ieee80211_assoc_response_frame
{
546 struct ieee80211_hdr_3addr header
;
550 struct ieee80211_info_element info_element
; /* supported rates */
551 } __attribute__ ((packed
));
554 struct ieee80211_txb
{
560 struct sk_buff
*fragments
[0];
564 /* SWEEP TABLE ENTRIES NUMBER*/
565 #define MAX_SWEEP_TAB_ENTRIES 42
566 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
567 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
568 * only use 8, and then use extended rates for the remaining supported
569 * rates. Other APs, however, stick all of their supported rates on the
570 * main rates information element... */
571 #define MAX_RATES_LENGTH ((u8)12)
572 #define MAX_RATES_EX_LENGTH ((u8)16)
573 #define MAX_NETWORK_COUNT 128
575 #define CRC_LENGTH 4U
577 #define MAX_WPA_IE_LEN 64
579 #define NETWORK_EMPTY_ESSID (1<<0)
580 #define NETWORK_HAS_OFDM (1<<1)
581 #define NETWORK_HAS_CCK (1<<2)
583 struct ieee80211_network
{
584 /* These entries are used to identify a unique network */
587 /* Ensure null-terminated for any debug msgs */
588 u8 ssid
[IW_ESSID_MAX_SIZE
+ 1];
591 /* These are network statistics */
592 struct ieee80211_rx_stats stats
;
594 u8 rates
[MAX_RATES_LENGTH
];
596 u8 rates_ex
[MAX_RATES_EX_LENGTH
];
598 unsigned long last_scanned
;
606 u8 wpa_ie
[MAX_WPA_IE_LEN
];
608 u8 rsn_ie
[MAX_WPA_IE_LEN
];
610 struct list_head list
;
613 enum ieee80211_state
{
614 IEEE80211_UNINITIALIZED
= 0,
615 IEEE80211_INITIALIZED
,
616 IEEE80211_ASSOCIATING
,
617 IEEE80211_ASSOCIATED
,
618 IEEE80211_AUTHENTICATING
,
619 IEEE80211_AUTHENTICATED
,
623 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
624 #define DEFAULT_FTS 2346
625 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
626 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
629 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
630 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
632 struct ieee80211_device
{
633 struct net_device
*dev
;
635 /* Bookkeeping structures */
636 struct net_device_stats stats
;
637 struct ieee80211_stats ieee_stats
;
639 /* Probe / Beacon management */
640 struct list_head network_free_list
;
641 struct list_head network_list
;
642 struct ieee80211_network
*networks
;
646 int iw_mode
; /* operating mode (IW_MODE_*) */
650 int tx_headroom
; /* Set to size of any additional room needed at front
651 * of allocated Tx SKBs */
654 /* WEP and other encryption related settings at the device level */
655 int open_wep
; /* Set to 1 to allow unencrypted frames */
657 int reset_on_keychange
; /* Set to 1 if the HW needs to be reset on
660 /* If the host performs {en,de}cryption, then set to 1 */
663 int ieee802_1x
; /* is IEEE 802.1X used */
667 int drop_unencrypted
;
668 int tkip_countermeasures
;
673 struct list_head crypt_deinit_list
;
674 struct ieee80211_crypt_data
*crypt
[WEP_KEYS
];
675 int tx_keyidx
; /* default TX key index (crypt[tx_keyidx]) */
676 struct timer_list crypt_deinit_timer
;
678 int bcrx_sta_key
; /* use individual keys to override default keys even
679 * with RX of broad/multicast frames */
681 /* Fragmentation structures */
682 struct ieee80211_frag_entry frag_cache
[IEEE80211_FRAG_CACHE_LEN
];
683 unsigned int frag_next_idx
;
684 u16 fts
; /* Fragmentation Threshold */
686 /* Association info */
689 enum ieee80211_state state
;
691 int mode
; /* A, B, G */
692 int modulation
; /* CCK, OFDM */
693 int freq_band
; /* 2.4Ghz, 5.2Ghz, Mixed */
694 int abg_ture
; /* ABG flag */
696 /* Callback functions */
697 void (*set_security
)(struct net_device
*dev
,
698 struct ieee80211_security
*sec
);
699 int (*hard_start_xmit
)(struct ieee80211_txb
*txb
,
700 struct net_device
*dev
);
701 int (*reset_port
)(struct net_device
*dev
);
703 /* This must be the last item so that it points to the data
704 * allocated beyond this structure by alloc_ieee80211 */
708 #define IEEE_A (1<<0)
709 #define IEEE_B (1<<1)
710 #define IEEE_G (1<<2)
711 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
713 extern inline void *ieee80211_priv(struct net_device
*dev
)
715 return ((struct ieee80211_device
*)netdev_priv(dev
))->priv
;
718 extern inline int ieee80211_is_empty_essid(const char *essid
, int essid_len
)
720 /* Single white space is for Linksys APs */
721 if (essid_len
== 1 && essid
[0] == ' ')
724 /* Otherwise, if the entire essid is 0, we assume it is hidden */
727 if (essid
[essid_len
] != '\0')
734 extern inline int ieee80211_is_valid_mode(struct ieee80211_device
*ieee
, int mode
)
737 * It is possible for both access points and our device to support
738 * combinations of modes, so as long as there is one valid combination
739 * of ap/device supported modes, then return success
742 if ((mode
& IEEE_A
) &&
743 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
744 (ieee
->freq_band
& IEEE80211_52GHZ_BAND
))
747 if ((mode
& IEEE_G
) &&
748 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
749 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
752 if ((mode
& IEEE_B
) &&
753 (ieee
->modulation
& IEEE80211_CCK_MODULATION
) &&
754 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
760 extern inline int ieee80211_get_hdrlen(u16 fc
)
762 int hdrlen
= IEEE80211_3ADDR_LEN
;
764 switch (WLAN_FC_GET_TYPE(fc
)) {
765 case IEEE80211_FTYPE_DATA
:
766 if ((fc
& IEEE80211_FCTL_FROMDS
) && (fc
& IEEE80211_FCTL_TODS
))
767 hdrlen
= IEEE80211_4ADDR_LEN
;
769 case IEEE80211_FTYPE_CTL
:
770 switch (WLAN_FC_GET_STYPE(fc
)) {
771 case IEEE80211_STYPE_CTS
:
772 case IEEE80211_STYPE_ACK
:
773 hdrlen
= IEEE80211_1ADDR_LEN
;
776 hdrlen
= IEEE80211_2ADDR_LEN
;
788 extern void free_ieee80211(struct net_device
*dev
);
789 extern struct net_device
*alloc_ieee80211(int sizeof_priv
);
791 extern int ieee80211_set_encryption(struct ieee80211_device
*ieee
);
796 extern int ieee80211_xmit(struct sk_buff
*skb
,
797 struct net_device
*dev
);
798 extern void ieee80211_txb_free(struct ieee80211_txb
*);
802 extern int ieee80211_rx(struct ieee80211_device
*ieee
, struct sk_buff
*skb
,
803 struct ieee80211_rx_stats
*rx_stats
);
804 extern void ieee80211_rx_mgt(struct ieee80211_device
*ieee
,
805 struct ieee80211_hdr
*header
,
806 struct ieee80211_rx_stats
*stats
);
809 extern int ieee80211_wx_get_scan(struct ieee80211_device
*ieee
,
810 struct iw_request_info
*info
,
811 union iwreq_data
*wrqu
, char *key
);
812 extern int ieee80211_wx_set_encode(struct ieee80211_device
*ieee
,
813 struct iw_request_info
*info
,
814 union iwreq_data
*wrqu
, char *key
);
815 extern int ieee80211_wx_get_encode(struct ieee80211_device
*ieee
,
816 struct iw_request_info
*info
,
817 union iwreq_data
*wrqu
, char *key
);
820 extern inline void ieee80211_increment_scans(struct ieee80211_device
*ieee
)
825 extern inline int ieee80211_get_scans(struct ieee80211_device
*ieee
)
830 static inline const char *escape_essid(const char *essid
, u8 essid_len
) {
831 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
832 const char *s
= essid
;
835 if (ieee80211_is_empty_essid(essid
, essid_len
)) {
836 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
840 essid_len
= min(essid_len
, (u8
)IW_ESSID_MAX_SIZE
);
841 while (essid_len
--) {
853 #endif /* IEEE80211_H */