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 */
27 #define IW_QUAL_QUAL_INVALID 0x10
28 #define IW_QUAL_LEVEL_INVALID 0x20
29 #define IW_QUAL_NOISE_INVALID 0x40
30 #define IW_QUAL_QUAL_UPDATED 0x1
31 #define IW_QUAL_LEVEL_UPDATED 0x2
32 #define IW_QUAL_NOISE_UPDATED 0x4
35 #define IEEE80211_DATA_LEN 2304
36 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
39 The figure in section 7.1.2 suggests a body size of up to 2312
40 bytes is allowed, which is a bit confusing, I suspect this
41 represents the 2304 bytes of real data, plus a possible 8 bytes of
42 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
45 #define IEEE80211_HLEN 30
46 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
48 struct ieee80211_hdr
{
56 } __attribute__ ((packed
));
58 struct ieee80211_hdr_3addr
{
65 } __attribute__ ((packed
));
75 static const char *eap_types
[] = {
76 [EAP_PACKET
] = "EAP-Packet",
77 [EAPOL_START
] = "EAPOL-Start",
78 [EAPOL_LOGOFF
] = "EAPOL-Logoff",
79 [EAPOL_KEY
] = "EAPOL-Key",
80 [EAPOL_ENCAP_ASF_ALERT
] = "EAPOL-Encap-ASF-Alert"
83 static inline const char *eap_get_type(int type
)
85 return (type
>= ARRAY_SIZE(eap_types
)) ? "Unknown" : eap_types
[type
];
94 } __attribute__ ((packed
));
96 #define IEEE80211_3ADDR_LEN 24
97 #define IEEE80211_4ADDR_LEN 30
98 #define IEEE80211_FCS_LEN 4
100 #define MIN_FRAG_THRESHOLD 256U
101 #define MAX_FRAG_THRESHOLD 2346U
103 /* Frame control field constants */
104 #define IEEE80211_FCTL_VERS 0x0002
105 #define IEEE80211_FCTL_FTYPE 0x000c
106 #define IEEE80211_FCTL_STYPE 0x00f0
107 #define IEEE80211_FCTL_TODS 0x0100
108 #define IEEE80211_FCTL_FROMDS 0x0200
109 #define IEEE80211_FCTL_MOREFRAGS 0x0400
110 #define IEEE80211_FCTL_RETRY 0x0800
111 #define IEEE80211_FCTL_PM 0x1000
112 #define IEEE80211_FCTL_MOREDATA 0x2000
113 #define IEEE80211_FCTL_WEP 0x4000
114 #define IEEE80211_FCTL_ORDER 0x8000
116 #define IEEE80211_FTYPE_MGMT 0x0000
117 #define IEEE80211_FTYPE_CTL 0x0004
118 #define IEEE80211_FTYPE_DATA 0x0008
121 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
122 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
123 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
124 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
125 #define IEEE80211_STYPE_PROBE_REQ 0x0040
126 #define IEEE80211_STYPE_PROBE_RESP 0x0050
127 #define IEEE80211_STYPE_BEACON 0x0080
128 #define IEEE80211_STYPE_ATIM 0x0090
129 #define IEEE80211_STYPE_DISASSOC 0x00A0
130 #define IEEE80211_STYPE_AUTH 0x00B0
131 #define IEEE80211_STYPE_DEAUTH 0x00C0
134 #define IEEE80211_STYPE_PSPOLL 0x00A0
135 #define IEEE80211_STYPE_RTS 0x00B0
136 #define IEEE80211_STYPE_CTS 0x00C0
137 #define IEEE80211_STYPE_ACK 0x00D0
138 #define IEEE80211_STYPE_CFEND 0x00E0
139 #define IEEE80211_STYPE_CFENDACK 0x00F0
142 #define IEEE80211_STYPE_DATA 0x0000
143 #define IEEE80211_STYPE_DATA_CFACK 0x0010
144 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
145 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
146 #define IEEE80211_STYPE_NULLFUNC 0x0040
147 #define IEEE80211_STYPE_CFACK 0x0050
148 #define IEEE80211_STYPE_CFPOLL 0x0060
149 #define IEEE80211_STYPE_CFACKPOLL 0x0070
151 #define IEEE80211_SCTL_FRAG 0x000F
152 #define IEEE80211_SCTL_SEQ 0xFFF0
157 #ifdef CONFIG_IEEE80211_DEBUG
158 extern u32 ieee80211_debug_level
;
159 #define IEEE80211_DEBUG(level, fmt, args...) \
160 do { if (ieee80211_debug_level & (level)) \
161 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
162 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
164 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
165 #endif /* CONFIG_IEEE80211_DEBUG */
168 * To use the debug system;
170 * If you are defining a new debug classification, simply add it to the #define
171 * list here in the form of:
173 * #define IEEE80211_DL_xxxx VALUE
175 * shifting value to the left one bit from the previous entry. xxxx should be
176 * the name of the classification (for example, WEP)
178 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
179 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
180 * to send output to that classification.
182 * To add your debug level to the list of levels seen when you perform
184 * % cat /proc/net/ipw/debug_level
186 * you simply need to add your entry to the ipw_debug_levels array.
188 * If you do not see debug_level in /proc/net/ipw then you do not have
189 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
193 #define IEEE80211_DL_INFO (1<<0)
194 #define IEEE80211_DL_WX (1<<1)
195 #define IEEE80211_DL_SCAN (1<<2)
196 #define IEEE80211_DL_STATE (1<<3)
197 #define IEEE80211_DL_MGMT (1<<4)
198 #define IEEE80211_DL_FRAG (1<<5)
199 #define IEEE80211_DL_EAP (1<<6)
200 #define IEEE80211_DL_DROP (1<<7)
202 #define IEEE80211_DL_TX (1<<8)
203 #define IEEE80211_DL_RX (1<<9)
205 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
206 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
207 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
209 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
210 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
211 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
212 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
213 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
214 #define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
215 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
216 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
217 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
218 #include <linux/netdevice.h>
219 #include <linux/wireless.h>
220 #include <linux/if_arp.h> /* ARPHRD_ETHER */
223 #define WIRELESS_SPY // enable iwspy support
225 #include <net/iw_handler.h> // new driver API
228 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
229 #endif /* ETH_P_PAE */
231 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
233 #ifndef ETH_P_80211_RAW
234 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
237 /* IEEE 802.11 defines */
239 #define P80211_OUI_LEN 3
241 struct ieee80211_snap_hdr
{
243 u8 dsap
; /* always 0xAA */
244 u8 ssap
; /* always 0xAA */
245 u8 ctrl
; /* always 0x03 */
246 u8 oui
[P80211_OUI_LEN
]; /* organizational universal id */
248 } __attribute__ ((packed
));
250 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
252 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
253 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
255 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
256 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
258 /* Authentication algorithms */
259 #define WLAN_AUTH_OPEN 0
260 #define WLAN_AUTH_SHARED_KEY 1
262 #define WLAN_AUTH_CHALLENGE_LEN 128
264 #define WLAN_CAPABILITY_BSS (1<<0)
265 #define WLAN_CAPABILITY_IBSS (1<<1)
266 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
267 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
268 #define WLAN_CAPABILITY_PRIVACY (1<<4)
269 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
270 #define WLAN_CAPABILITY_PBCC (1<<6)
271 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
274 #define WLAN_STATUS_SUCCESS 0
275 #define WLAN_STATUS_UNSPECIFIED_FAILURE 1
276 #define WLAN_STATUS_CAPS_UNSUPPORTED 10
277 #define WLAN_STATUS_REASSOC_NO_ASSOC 11
278 #define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
279 #define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
280 #define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
281 #define WLAN_STATUS_CHALLENGE_FAIL 15
282 #define WLAN_STATUS_AUTH_TIMEOUT 16
283 #define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
284 #define WLAN_STATUS_ASSOC_DENIED_RATES 18
286 #define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
287 #define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
288 #define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
291 #define WLAN_REASON_UNSPECIFIED 1
292 #define WLAN_REASON_PREV_AUTH_NOT_VALID 2
293 #define WLAN_REASON_DEAUTH_LEAVING 3
294 #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
295 #define WLAN_REASON_DISASSOC_AP_BUSY 5
296 #define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
297 #define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
298 #define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
299 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
302 /* Information Element IDs */
303 #define WLAN_EID_SSID 0
304 #define WLAN_EID_SUPP_RATES 1
305 #define WLAN_EID_FH_PARAMS 2
306 #define WLAN_EID_DS_PARAMS 3
307 #define WLAN_EID_CF_PARAMS 4
308 #define WLAN_EID_TIM 5
309 #define WLAN_EID_IBSS_PARAMS 6
310 #define WLAN_EID_CHALLENGE 16
311 #define WLAN_EID_RSN 48
312 #define WLAN_EID_GENERIC 221
314 #define IEEE80211_MGMT_HDR_LEN 24
315 #define IEEE80211_DATA_HDR3_LEN 24
316 #define IEEE80211_DATA_HDR4_LEN 30
319 #define IEEE80211_STATMASK_SIGNAL (1<<0)
320 #define IEEE80211_STATMASK_RSSI (1<<1)
321 #define IEEE80211_STATMASK_NOISE (1<<2)
322 #define IEEE80211_STATMASK_RATE (1<<3)
323 #define IEEE80211_STATMASK_WEMASK 0x7
326 #define IEEE80211_CCK_MODULATION (1<<0)
327 #define IEEE80211_OFDM_MODULATION (1<<1)
329 #define IEEE80211_24GHZ_BAND (1<<0)
330 #define IEEE80211_52GHZ_BAND (1<<1)
332 #define IEEE80211_CCK_RATE_1MB 0x02
333 #define IEEE80211_CCK_RATE_2MB 0x04
334 #define IEEE80211_CCK_RATE_5MB 0x0B
335 #define IEEE80211_CCK_RATE_11MB 0x16
336 #define IEEE80211_OFDM_RATE_6MB 0x0C
337 #define IEEE80211_OFDM_RATE_9MB 0x12
338 #define IEEE80211_OFDM_RATE_12MB 0x18
339 #define IEEE80211_OFDM_RATE_18MB 0x24
340 #define IEEE80211_OFDM_RATE_24MB 0x30
341 #define IEEE80211_OFDM_RATE_36MB 0x48
342 #define IEEE80211_OFDM_RATE_48MB 0x60
343 #define IEEE80211_OFDM_RATE_54MB 0x6C
344 #define IEEE80211_BASIC_RATE_MASK 0x80
346 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
347 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
348 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
349 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
350 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
351 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
352 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
353 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
354 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
355 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
356 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
357 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
359 #define IEEE80211_CCK_RATES_MASK 0x0000000F
360 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
361 IEEE80211_CCK_RATE_2MB_MASK)
362 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
363 IEEE80211_CCK_RATE_5MB_MASK | \
364 IEEE80211_CCK_RATE_11MB_MASK)
366 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
367 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
368 IEEE80211_OFDM_RATE_12MB_MASK | \
369 IEEE80211_OFDM_RATE_24MB_MASK)
370 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
371 IEEE80211_OFDM_RATE_9MB_MASK | \
372 IEEE80211_OFDM_RATE_18MB_MASK | \
373 IEEE80211_OFDM_RATE_36MB_MASK | \
374 IEEE80211_OFDM_RATE_48MB_MASK | \
375 IEEE80211_OFDM_RATE_54MB_MASK)
376 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
377 IEEE80211_CCK_DEFAULT_RATES_MASK)
379 #define IEEE80211_NUM_OFDM_RATES 8
380 #define IEEE80211_NUM_CCK_RATES 4
381 #define IEEE80211_OFDM_SHIFT_MASK_A 4
386 /* NOTE: This data is for statistical purposes; not all hardware provides this
387 * information for frames received. Not setting these will not cause
388 * any adverse affects. */
389 struct ieee80211_rx_stats
{
394 u16 rate
; /* in 100 kbps */
402 /* IEEE 802.11 requires that STA supports concurrent reception of at least
403 * three fragmented frames. This define can be increased to support more
404 * concurrent frames, but it should be noted that each entry can consume about
405 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
406 #define IEEE80211_FRAG_CACHE_LEN 4
408 struct ieee80211_frag_entry
{
409 unsigned long first_frag_time
;
411 unsigned int last_frag
;
413 u8 src_addr
[ETH_ALEN
];
414 u8 dst_addr
[ETH_ALEN
];
417 struct ieee80211_stats
{
418 unsigned int tx_unicast_frames
;
419 unsigned int tx_multicast_frames
;
420 unsigned int tx_fragments
;
421 unsigned int tx_unicast_octets
;
422 unsigned int tx_multicast_octets
;
423 unsigned int tx_deferred_transmissions
;
424 unsigned int tx_single_retry_frames
;
425 unsigned int tx_multiple_retry_frames
;
426 unsigned int tx_retry_limit_exceeded
;
427 unsigned int tx_discards
;
428 unsigned int rx_unicast_frames
;
429 unsigned int rx_multicast_frames
;
430 unsigned int rx_fragments
;
431 unsigned int rx_unicast_octets
;
432 unsigned int rx_multicast_octets
;
433 unsigned int rx_fcs_errors
;
434 unsigned int rx_discards_no_buffer
;
435 unsigned int tx_discards_wrong_sa
;
436 unsigned int rx_discards_undecryptable
;
437 unsigned int rx_message_in_msg_fragments
;
438 unsigned int rx_message_in_bad_msg_fragments
;
441 struct ieee80211_device
;
443 #include "ieee80211_crypt.h"
445 #define SEC_KEY_1 (1<<0)
446 #define SEC_KEY_2 (1<<1)
447 #define SEC_KEY_3 (1<<2)
448 #define SEC_KEY_4 (1<<3)
449 #define SEC_ACTIVE_KEY (1<<4)
450 #define SEC_AUTH_MODE (1<<5)
451 #define SEC_UNICAST_GROUP (1<<6)
452 #define SEC_LEVEL (1<<7)
453 #define SEC_ENABLED (1<<8)
455 #define SEC_LEVEL_0 0 /* None */
456 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
457 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
458 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
459 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
462 #define WEP_KEY_LEN 13
464 struct ieee80211_security
{
469 unicast_uses_group
:1;
470 u8 key_sizes
[WEP_KEYS
];
471 u8 keys
[WEP_KEYS
][WEP_KEY_LEN
];
474 } __attribute__ ((packed
));
479 802.11 data frame from AP
481 ,-------------------------------------------------------------------.
482 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
483 |------|------|---------|---------|---------|------|---------|------|
484 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
485 | | tion | (BSSID) | | | ence | data | |
486 `-------------------------------------------------------------------'
492 struct ieee80211_header_data
{
501 #define BEACON_PROBE_SSID_ID_POSITION 12
503 /* Management Frame Information Element Types */
504 #define MFIE_TYPE_SSID 0
505 #define MFIE_TYPE_RATES 1
506 #define MFIE_TYPE_FH_SET 2
507 #define MFIE_TYPE_DS_SET 3
508 #define MFIE_TYPE_CF_SET 4
509 #define MFIE_TYPE_TIM 5
510 #define MFIE_TYPE_IBSS_SET 6
511 #define MFIE_TYPE_CHALLENGE 16
512 #define MFIE_TYPE_RSN 48
513 #define MFIE_TYPE_RATES_EX 50
514 #define MFIE_TYPE_GENERIC 221
516 struct ieee80211_info_element_hdr
{
519 } __attribute__ ((packed
));
521 struct ieee80211_info_element
{
525 } __attribute__ ((packed
));
528 * These are the data types that can make up management packets
534 u8 current_ap[ETH_ALEN];
537 u16 association_id:14, reserved:2;
538 } __attribute__ ((packed));
544 struct ieee80211_authentication
{
545 struct ieee80211_header_data header
;
549 struct ieee80211_info_element info_element
;
550 } __attribute__ ((packed
));
553 struct ieee80211_probe_response
{
554 struct ieee80211_header_data header
;
558 struct ieee80211_info_element info_element
;
559 } __attribute__ ((packed
));
561 struct ieee80211_assoc_request_frame
{
564 u8 current_ap
[ETH_ALEN
];
565 struct ieee80211_info_element info_element
;
566 } __attribute__ ((packed
));
568 struct ieee80211_assoc_response_frame
{
569 struct ieee80211_hdr_3addr header
;
573 struct ieee80211_info_element info_element
; /* supported rates */
574 } __attribute__ ((packed
));
577 struct ieee80211_txb
{
583 struct sk_buff
*fragments
[0];
587 /* SWEEP TABLE ENTRIES NUMBER*/
588 #define MAX_SWEEP_TAB_ENTRIES 42
589 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
590 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
591 * only use 8, and then use extended rates for the remaining supported
592 * rates. Other APs, however, stick all of their supported rates on the
593 * main rates information element... */
594 #define MAX_RATES_LENGTH ((u8)12)
595 #define MAX_RATES_EX_LENGTH ((u8)16)
596 #define MAX_NETWORK_COUNT 128
598 #define CRC_LENGTH 4U
600 #define MAX_WPA_IE_LEN 64
602 #define NETWORK_EMPTY_ESSID (1<<0)
603 #define NETWORK_HAS_OFDM (1<<1)
604 #define NETWORK_HAS_CCK (1<<2)
606 struct ieee80211_network
{
607 /* These entries are used to identify a unique network */
610 /* Ensure null-terminated for any debug msgs */
611 u8 ssid
[IW_ESSID_MAX_SIZE
+ 1];
614 /* These are network statistics */
615 struct ieee80211_rx_stats stats
;
617 u8 rates
[MAX_RATES_LENGTH
];
619 u8 rates_ex
[MAX_RATES_EX_LENGTH
];
621 unsigned long last_scanned
;
629 u8 wpa_ie
[MAX_WPA_IE_LEN
];
631 u8 rsn_ie
[MAX_WPA_IE_LEN
];
633 struct list_head list
;
636 enum ieee80211_state
{
637 IEEE80211_UNINITIALIZED
= 0,
638 IEEE80211_INITIALIZED
,
639 IEEE80211_ASSOCIATING
,
640 IEEE80211_ASSOCIATED
,
641 IEEE80211_AUTHENTICATING
,
642 IEEE80211_AUTHENTICATED
,
646 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
647 #define DEFAULT_FTS 2346
648 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
649 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
652 extern inline int is_multicast_ether_addr(const u8
*addr
)
654 return ((addr
[0] != 0xff) && (0x01 & addr
[0]));
657 extern inline int is_broadcast_ether_addr(const u8
*addr
)
659 return ((addr
[0] == 0xff) && (addr
[1] == 0xff) && (addr
[2] == 0xff) && \
660 (addr
[3] == 0xff) && (addr
[4] == 0xff) && (addr
[5] == 0xff));
663 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
664 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
666 struct ieee80211_device
{
667 struct net_device
*dev
;
669 /* Bookkeeping structures */
670 struct net_device_stats stats
;
671 struct ieee80211_stats ieee_stats
;
673 /* Probe / Beacon management */
674 struct list_head network_free_list
;
675 struct list_head network_list
;
676 struct ieee80211_network
*networks
;
680 int iw_mode
; /* operating mode (IW_MODE_*) */
684 int tx_headroom
; /* Set to size of any additional room needed at front
685 * of allocated Tx SKBs */
688 /* WEP and other encryption related settings at the device level */
689 int open_wep
; /* Set to 1 to allow unencrypted frames */
691 int reset_on_keychange
; /* Set to 1 if the HW needs to be reset on
694 /* If the host performs {en,de}cryption, then set to 1 */
697 int ieee802_1x
; /* is IEEE 802.1X used */
701 int drop_unencrypted
;
702 int tkip_countermeasures
;
707 struct list_head crypt_deinit_list
;
708 struct ieee80211_crypt_data
*crypt
[WEP_KEYS
];
709 int tx_keyidx
; /* default TX key index (crypt[tx_keyidx]) */
710 struct timer_list crypt_deinit_timer
;
712 int bcrx_sta_key
; /* use individual keys to override default keys even
713 * with RX of broad/multicast frames */
715 /* Fragmentation structures */
716 struct ieee80211_frag_entry frag_cache
[IEEE80211_FRAG_CACHE_LEN
];
717 unsigned int frag_next_idx
;
718 u16 fts
; /* Fragmentation Threshold */
720 /* Association info */
723 enum ieee80211_state state
;
725 int mode
; /* A, B, G */
726 int modulation
; /* CCK, OFDM */
727 int freq_band
; /* 2.4Ghz, 5.2Ghz, Mixed */
728 int abg_ture
; /* ABG flag */
730 /* Callback functions */
731 void (*set_security
)(struct net_device
*dev
,
732 struct ieee80211_security
*sec
);
733 int (*hard_start_xmit
)(struct ieee80211_txb
*txb
,
734 struct net_device
*dev
);
735 int (*reset_port
)(struct net_device
*dev
);
737 /* This must be the last item so that it points to the data
738 * allocated beyond this structure by alloc_ieee80211 */
742 #define IEEE_A (1<<0)
743 #define IEEE_B (1<<1)
744 #define IEEE_G (1<<2)
745 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
747 extern inline void *ieee80211_priv(struct net_device
*dev
)
749 return ((struct ieee80211_device
*)netdev_priv(dev
))->priv
;
752 extern inline int ieee80211_is_empty_essid(const char *essid
, int essid_len
)
754 /* Single white space is for Linksys APs */
755 if (essid_len
== 1 && essid
[0] == ' ')
758 /* Otherwise, if the entire essid is 0, we assume it is hidden */
761 if (essid
[essid_len
] != '\0')
768 extern inline int ieee80211_is_valid_mode(struct ieee80211_device
*ieee
, int mode
)
771 * It is possible for both access points and our device to support
772 * combinations of modes, so as long as there is one valid combination
773 * of ap/device supported modes, then return success
776 if ((mode
& IEEE_A
) &&
777 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
778 (ieee
->freq_band
& IEEE80211_52GHZ_BAND
))
781 if ((mode
& IEEE_G
) &&
782 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
783 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
786 if ((mode
& IEEE_B
) &&
787 (ieee
->modulation
& IEEE80211_CCK_MODULATION
) &&
788 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
794 extern inline int ieee80211_get_hdrlen(u16 fc
)
798 switch (WLAN_FC_GET_TYPE(fc
)) {
799 case IEEE80211_FTYPE_DATA
:
800 if ((fc
& IEEE80211_FCTL_FROMDS
) && (fc
& IEEE80211_FCTL_TODS
))
801 hdrlen
= 30; /* Addr4 */
803 case IEEE80211_FTYPE_CTL
:
804 switch (WLAN_FC_GET_STYPE(fc
)) {
805 case IEEE80211_STYPE_CTS
:
806 case IEEE80211_STYPE_ACK
:
822 extern void free_ieee80211(struct net_device
*dev
);
823 extern struct net_device
*alloc_ieee80211(int sizeof_priv
);
825 extern int ieee80211_set_encryption(struct ieee80211_device
*ieee
);
830 extern int ieee80211_xmit(struct sk_buff
*skb
,
831 struct net_device
*dev
);
832 extern void ieee80211_txb_free(struct ieee80211_txb
*);
836 extern int ieee80211_rx(struct ieee80211_device
*ieee
, struct sk_buff
*skb
,
837 struct ieee80211_rx_stats
*rx_stats
);
838 extern void ieee80211_rx_mgt(struct ieee80211_device
*ieee
,
839 struct ieee80211_hdr
*header
,
840 struct ieee80211_rx_stats
*stats
);
843 extern int ieee80211_wx_get_scan(struct ieee80211_device
*ieee
,
844 struct iw_request_info
*info
,
845 union iwreq_data
*wrqu
, char *key
);
846 extern int ieee80211_wx_set_encode(struct ieee80211_device
*ieee
,
847 struct iw_request_info
*info
,
848 union iwreq_data
*wrqu
, char *key
);
849 extern int ieee80211_wx_get_encode(struct ieee80211_device
*ieee
,
850 struct iw_request_info
*info
,
851 union iwreq_data
*wrqu
, char *key
);
854 extern inline void ieee80211_increment_scans(struct ieee80211_device
*ieee
)
859 extern inline int ieee80211_get_scans(struct ieee80211_device
*ieee
)
864 static inline const char *escape_essid(const char *essid
, u8 essid_len
) {
865 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
866 const char *s
= essid
;
869 if (ieee80211_is_empty_essid(essid
, essid_len
)) {
870 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
874 essid_len
= min(essid_len
, (u8
)IW_ESSID_MAX_SIZE
);
875 while (essid_len
--) {
887 #endif /* IEEE80211_H */