aboutsummaryrefslogtreecommitdiffstats
path: root/include/net
diff options
context:
space:
mode:
Diffstat (limited to 'include/net')
-rw-r--r--include/net/ieee80211.h863
-rw-r--r--include/net/ieee80211_crypt.h86
2 files changed, 949 insertions, 0 deletions
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
new file mode 100644
index 000000000000..f1d9b9e9dec7
--- /dev/null
+++ b/include/net/ieee80211.h
@@ -0,0 +1,863 @@
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 * <jkmaline@cc.hut.fi>
10 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11 *
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004, 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#ifndef IEEE80211_H
22#define IEEE80211_H
23#include <linux/if_ether.h> /* ETH_ALEN */
24#include <linux/kernel.h> /* ARRAY_SIZE */
25
26#if WIRELESS_EXT < 17
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
33#endif
34
35#define IEEE80211_DATA_LEN 2304
36/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
37 6.2.1.1.2.
38
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) */
43
44
45#define IEEE80211_HLEN 30
46#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
47
48struct ieee80211_hdr {
49 u16 frame_ctl;
50 u16 duration_id;
51 u8 addr1[ETH_ALEN];
52 u8 addr2[ETH_ALEN];
53 u8 addr3[ETH_ALEN];
54 u16 seq_ctl;
55 u8 addr4[ETH_ALEN];
56} __attribute__ ((packed));
57
58struct ieee80211_hdr_3addr {
59 u16 frame_ctl;
60 u16 duration_id;
61 u8 addr1[ETH_ALEN];
62 u8 addr2[ETH_ALEN];
63 u8 addr3[ETH_ALEN];
64 u16 seq_ctl;
65} __attribute__ ((packed));
66
67enum eap_type {
68 EAP_PACKET = 0,
69 EAPOL_START,
70 EAPOL_LOGOFF,
71 EAPOL_KEY,
72 EAPOL_ENCAP_ASF_ALERT
73};
74
75static 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"
81};
82
83static inline const char *eap_get_type(int type)
84{
85 return (type >= ARRAY_SIZE(eap_types)) ? "Unknown" : eap_types[type];
86}
87
88struct eapol {
89 u8 snap[6];
90 u16 ethertype;
91 u8 version;
92 u8 type;
93 u16 length;
94} __attribute__ ((packed));
95
96#define IEEE80211_1ADDR_LEN 10
97#define IEEE80211_2ADDR_LEN 16
98#define IEEE80211_3ADDR_LEN 24
99#define IEEE80211_4ADDR_LEN 30
100#define IEEE80211_FCS_LEN 4
101
102#define MIN_FRAG_THRESHOLD 256U
103#define MAX_FRAG_THRESHOLD 2346U
104
105/* Frame control field constants */
106#define IEEE80211_FCTL_VERS 0x0002
107#define IEEE80211_FCTL_FTYPE 0x000c
108#define IEEE80211_FCTL_STYPE 0x00f0
109#define IEEE80211_FCTL_TODS 0x0100
110#define IEEE80211_FCTL_FROMDS 0x0200
111#define IEEE80211_FCTL_MOREFRAGS 0x0400
112#define IEEE80211_FCTL_RETRY 0x0800
113#define IEEE80211_FCTL_PM 0x1000
114#define IEEE80211_FCTL_MOREDATA 0x2000
115#define IEEE80211_FCTL_WEP 0x4000
116#define IEEE80211_FCTL_ORDER 0x8000
117
118#define IEEE80211_FTYPE_MGMT 0x0000
119#define IEEE80211_FTYPE_CTL 0x0004
120#define IEEE80211_FTYPE_DATA 0x0008
121
122/* management */
123#define IEEE80211_STYPE_ASSOC_REQ 0x0000
124#define IEEE80211_STYPE_ASSOC_RESP 0x0010
125#define IEEE80211_STYPE_REASSOC_REQ 0x0020
126#define IEEE80211_STYPE_REASSOC_RESP 0x0030
127#define IEEE80211_STYPE_PROBE_REQ 0x0040
128#define IEEE80211_STYPE_PROBE_RESP 0x0050
129#define IEEE80211_STYPE_BEACON 0x0080
130#define IEEE80211_STYPE_ATIM 0x0090
131#define IEEE80211_STYPE_DISASSOC 0x00A0
132#define IEEE80211_STYPE_AUTH 0x00B0
133#define IEEE80211_STYPE_DEAUTH 0x00C0
134
135/* control */
136#define IEEE80211_STYPE_PSPOLL 0x00A0
137#define IEEE80211_STYPE_RTS 0x00B0
138#define IEEE80211_STYPE_CTS 0x00C0
139#define IEEE80211_STYPE_ACK 0x00D0
140#define IEEE80211_STYPE_CFEND 0x00E0
141#define IEEE80211_STYPE_CFENDACK 0x00F0
142
143/* data */
144#define IEEE80211_STYPE_DATA 0x0000
145#define IEEE80211_STYPE_DATA_CFACK 0x0010
146#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
147#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
148#define IEEE80211_STYPE_NULLFUNC 0x0040
149#define IEEE80211_STYPE_CFACK 0x0050
150#define IEEE80211_STYPE_CFPOLL 0x0060
151#define IEEE80211_STYPE_CFACKPOLL 0x0070
152
153#define IEEE80211_SCTL_FRAG 0x000F
154#define IEEE80211_SCTL_SEQ 0xFFF0
155
156
157/* debug macros */
158
159#ifdef CONFIG_IEEE80211_DEBUG
160extern u32 ieee80211_debug_level;
161#define IEEE80211_DEBUG(level, fmt, args...) \
162do { if (ieee80211_debug_level & (level)) \
163 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
164 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
165#else
166#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
167#endif /* CONFIG_IEEE80211_DEBUG */
168
169/*
170 * To use the debug system;
171 *
172 * If you are defining a new debug classification, simply add it to the #define
173 * list here in the form of:
174 *
175 * #define IEEE80211_DL_xxxx VALUE
176 *
177 * shifting value to the left one bit from the previous entry. xxxx should be
178 * the name of the classification (for example, WEP)
179 *
180 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
181 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
182 * to send output to that classification.
183 *
184 * To add your debug level to the list of levels seen when you perform
185 *
186 * % cat /proc/net/ipw/debug_level
187 *
188 * you simply need to add your entry to the ipw_debug_levels array.
189 *
190 * If you do not see debug_level in /proc/net/ipw then you do not have
191 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
192 *
193 */
194
195#define IEEE80211_DL_INFO (1<<0)
196#define IEEE80211_DL_WX (1<<1)
197#define IEEE80211_DL_SCAN (1<<2)
198#define IEEE80211_DL_STATE (1<<3)
199#define IEEE80211_DL_MGMT (1<<4)
200#define IEEE80211_DL_FRAG (1<<5)
201#define IEEE80211_DL_EAP (1<<6)
202#define IEEE80211_DL_DROP (1<<7)
203
204#define IEEE80211_DL_TX (1<<8)
205#define IEEE80211_DL_RX (1<<9)
206
207#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
208#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
209#define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
210
211#define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
212#define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
213#define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
214#define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
215#define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
216#define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
217#define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
218#define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
219#define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
220#include <linux/netdevice.h>
221#include <linux/wireless.h>
222#include <linux/if_arp.h> /* ARPHRD_ETHER */
223
224#ifndef WIRELESS_SPY
225#define WIRELESS_SPY // enable iwspy support
226#endif
227#include <net/iw_handler.h> // new driver API
228
229#ifndef ETH_P_PAE
230#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
231#endif /* ETH_P_PAE */
232
233#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
234
235#ifndef ETH_P_80211_RAW
236#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
237#endif
238
239/* IEEE 802.11 defines */
240
241#define P80211_OUI_LEN 3
242
243struct ieee80211_snap_hdr {
244
245 u8 dsap; /* always 0xAA */
246 u8 ssap; /* always 0xAA */
247 u8 ctrl; /* always 0x03 */
248 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
249
250} __attribute__ ((packed));
251
252#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
253
254#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
255#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
256
257#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
258#define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
259
260/* Authentication algorithms */
261#define WLAN_AUTH_OPEN 0
262#define WLAN_AUTH_SHARED_KEY 1
263
264#define WLAN_AUTH_CHALLENGE_LEN 128
265
266#define WLAN_CAPABILITY_BSS (1<<0)
267#define WLAN_CAPABILITY_IBSS (1<<1)
268#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
269#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
270#define WLAN_CAPABILITY_PRIVACY (1<<4)
271#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
272#define WLAN_CAPABILITY_PBCC (1<<6)
273#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
274
275/* Status codes */
276#define WLAN_STATUS_SUCCESS 0
277#define WLAN_STATUS_UNSPECIFIED_FAILURE 1
278#define WLAN_STATUS_CAPS_UNSUPPORTED 10
279#define WLAN_STATUS_REASSOC_NO_ASSOC 11
280#define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
281#define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
282#define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
283#define WLAN_STATUS_CHALLENGE_FAIL 15
284#define WLAN_STATUS_AUTH_TIMEOUT 16
285#define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
286#define WLAN_STATUS_ASSOC_DENIED_RATES 18
287/* 802.11b */
288#define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
289#define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
290#define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
291
292/* Reason codes */
293#define WLAN_REASON_UNSPECIFIED 1
294#define WLAN_REASON_PREV_AUTH_NOT_VALID 2
295#define WLAN_REASON_DEAUTH_LEAVING 3
296#define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
297#define WLAN_REASON_DISASSOC_AP_BUSY 5
298#define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
299#define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
300#define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
301#define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
302
303
304#define IEEE80211_STATMASK_SIGNAL (1<<0)
305#define IEEE80211_STATMASK_RSSI (1<<1)
306#define IEEE80211_STATMASK_NOISE (1<<2)
307#define IEEE80211_STATMASK_RATE (1<<3)
308#define IEEE80211_STATMASK_WEMASK 0x7
309
310
311#define IEEE80211_CCK_MODULATION (1<<0)
312#define IEEE80211_OFDM_MODULATION (1<<1)
313
314#define IEEE80211_24GHZ_BAND (1<<0)
315#define IEEE80211_52GHZ_BAND (1<<1)
316
317#define IEEE80211_CCK_RATE_1MB 0x02
318#define IEEE80211_CCK_RATE_2MB 0x04
319#define IEEE80211_CCK_RATE_5MB 0x0B
320#define IEEE80211_CCK_RATE_11MB 0x16
321#define IEEE80211_OFDM_RATE_6MB 0x0C
322#define IEEE80211_OFDM_RATE_9MB 0x12
323#define IEEE80211_OFDM_RATE_12MB 0x18
324#define IEEE80211_OFDM_RATE_18MB 0x24
325#define IEEE80211_OFDM_RATE_24MB 0x30
326#define IEEE80211_OFDM_RATE_36MB 0x48
327#define IEEE80211_OFDM_RATE_48MB 0x60
328#define IEEE80211_OFDM_RATE_54MB 0x6C
329#define IEEE80211_BASIC_RATE_MASK 0x80
330
331#define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
332#define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
333#define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
334#define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
335#define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
336#define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
337#define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
338#define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
339#define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
340#define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
341#define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
342#define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
343
344#define IEEE80211_CCK_RATES_MASK 0x0000000F
345#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
346 IEEE80211_CCK_RATE_2MB_MASK)
347#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
348 IEEE80211_CCK_RATE_5MB_MASK | \
349 IEEE80211_CCK_RATE_11MB_MASK)
350
351#define IEEE80211_OFDM_RATES_MASK 0x00000FF0
352#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
353 IEEE80211_OFDM_RATE_12MB_MASK | \
354 IEEE80211_OFDM_RATE_24MB_MASK)
355#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
356 IEEE80211_OFDM_RATE_9MB_MASK | \
357 IEEE80211_OFDM_RATE_18MB_MASK | \
358 IEEE80211_OFDM_RATE_36MB_MASK | \
359 IEEE80211_OFDM_RATE_48MB_MASK | \
360 IEEE80211_OFDM_RATE_54MB_MASK)
361#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
362 IEEE80211_CCK_DEFAULT_RATES_MASK)
363
364#define IEEE80211_NUM_OFDM_RATES 8
365#define IEEE80211_NUM_CCK_RATES 4
366#define IEEE80211_OFDM_SHIFT_MASK_A 4
367
368
369
370
371/* NOTE: This data is for statistical purposes; not all hardware provides this
372 * information for frames received. Not setting these will not cause
373 * any adverse affects. */
374struct ieee80211_rx_stats {
375 u32 mac_time;
376 s8 rssi;
377 u8 signal;
378 u8 noise;
379 u16 rate; /* in 100 kbps */
380 u8 received_channel;
381 u8 control;
382 u8 mask;
383 u8 freq;
384 u16 len;
385};
386
387/* IEEE 802.11 requires that STA supports concurrent reception of at least
388 * three fragmented frames. This define can be increased to support more
389 * concurrent frames, but it should be noted that each entry can consume about
390 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
391#define IEEE80211_FRAG_CACHE_LEN 4
392
393struct ieee80211_frag_entry {
394 unsigned long first_frag_time;
395 unsigned int seq;
396 unsigned int last_frag;
397 struct sk_buff *skb;
398 u8 src_addr[ETH_ALEN];
399 u8 dst_addr[ETH_ALEN];
400};
401
402struct ieee80211_stats {
403 unsigned int tx_unicast_frames;
404 unsigned int tx_multicast_frames;
405 unsigned int tx_fragments;
406 unsigned int tx_unicast_octets;
407 unsigned int tx_multicast_octets;
408 unsigned int tx_deferred_transmissions;
409 unsigned int tx_single_retry_frames;
410 unsigned int tx_multiple_retry_frames;
411 unsigned int tx_retry_limit_exceeded;
412 unsigned int tx_discards;
413 unsigned int rx_unicast_frames;
414 unsigned int rx_multicast_frames;
415 unsigned int rx_fragments;
416 unsigned int rx_unicast_octets;
417 unsigned int rx_multicast_octets;
418 unsigned int rx_fcs_errors;
419 unsigned int rx_discards_no_buffer;
420 unsigned int tx_discards_wrong_sa;
421 unsigned int rx_discards_undecryptable;
422 unsigned int rx_message_in_msg_fragments;
423 unsigned int rx_message_in_bad_msg_fragments;
424};
425
426struct ieee80211_device;
427
428#include "ieee80211_crypt.h"
429
430#define SEC_KEY_1 (1<<0)
431#define SEC_KEY_2 (1<<1)
432#define SEC_KEY_3 (1<<2)
433#define SEC_KEY_4 (1<<3)
434#define SEC_ACTIVE_KEY (1<<4)
435#define SEC_AUTH_MODE (1<<5)
436#define SEC_UNICAST_GROUP (1<<6)
437#define SEC_LEVEL (1<<7)
438#define SEC_ENABLED (1<<8)
439
440#define SEC_LEVEL_0 0 /* None */
441#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
442#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
443#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
444#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
445
446#define WEP_KEYS 4
447#define WEP_KEY_LEN 13
448
449struct ieee80211_security {
450 u16 active_key:2,
451 enabled:1,
452 auth_mode:2,
453 auth_algo:4,
454 unicast_uses_group:1;
455 u8 key_sizes[WEP_KEYS];
456 u8 keys[WEP_KEYS][WEP_KEY_LEN];
457 u8 level;
458 u16 flags;
459} __attribute__ ((packed));
460
461
462/*
463
464 802.11 data frame from AP
465
466 ,-------------------------------------------------------------------.
467Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
468 |------|------|---------|---------|---------|------|---------|------|
469Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
470 | | tion | (BSSID) | | | ence | data | |
471 `-------------------------------------------------------------------'
472
473Total: 28-2340 bytes
474
475*/
476
477#define BEACON_PROBE_SSID_ID_POSITION 12
478
479/* Management Frame Information Element Types */
480#define MFIE_TYPE_SSID 0
481#define MFIE_TYPE_RATES 1
482#define MFIE_TYPE_FH_SET 2
483#define MFIE_TYPE_DS_SET 3
484#define MFIE_TYPE_CF_SET 4
485#define MFIE_TYPE_TIM 5
486#define MFIE_TYPE_IBSS_SET 6
487#define MFIE_TYPE_CHALLENGE 16
488#define MFIE_TYPE_RSN 48
489#define MFIE_TYPE_RATES_EX 50
490#define MFIE_TYPE_GENERIC 221
491
492struct ieee80211_info_element_hdr {
493 u8 id;
494 u8 len;
495} __attribute__ ((packed));
496
497struct ieee80211_info_element {
498 u8 id;
499 u8 len;
500 u8 data[0];
501} __attribute__ ((packed));
502
503/*
504 * These are the data types that can make up management packets
505 *
506 u16 auth_algorithm;
507 u16 auth_sequence;
508 u16 beacon_interval;
509 u16 capability;
510 u8 current_ap[ETH_ALEN];
511 u16 listen_interval;
512 struct {
513 u16 association_id:14, reserved:2;
514 } __attribute__ ((packed));
515 u32 time_stamp[2];
516 u16 reason;
517 u16 status;
518*/
519
520struct ieee80211_authentication {
521 struct ieee80211_hdr_3addr header;
522 u16 algorithm;
523 u16 transaction;
524 u16 status;
525 struct ieee80211_info_element info_element;
526} __attribute__ ((packed));
527
528
529struct ieee80211_probe_response {
530 struct ieee80211_hdr_3addr header;
531 u32 time_stamp[2];
532 u16 beacon_interval;
533 u16 capability;
534 struct ieee80211_info_element info_element;
535} __attribute__ ((packed));
536
537struct ieee80211_assoc_request_frame {
538 u16 capability;
539 u16 listen_interval;
540 u8 current_ap[ETH_ALEN];
541 struct ieee80211_info_element info_element;
542} __attribute__ ((packed));
543
544struct ieee80211_assoc_response_frame {
545 struct ieee80211_hdr_3addr header;
546 u16 capability;
547 u16 status;
548 u16 aid;
549 struct ieee80211_info_element info_element; /* supported rates */
550} __attribute__ ((packed));
551
552
553struct ieee80211_txb {
554 u8 nr_frags;
555 u8 encrypted;
556 u16 reserved;
557 u16 frag_size;
558 u16 payload_size;
559 struct sk_buff *fragments[0];
560};
561
562
563/* SWEEP TABLE ENTRIES NUMBER*/
564#define MAX_SWEEP_TAB_ENTRIES 42
565#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
566/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
567 * only use 8, and then use extended rates for the remaining supported
568 * rates. Other APs, however, stick all of their supported rates on the
569 * main rates information element... */
570#define MAX_RATES_LENGTH ((u8)12)
571#define MAX_RATES_EX_LENGTH ((u8)16)
572#define MAX_NETWORK_COUNT 128
573
574#define CRC_LENGTH 4U
575
576#define MAX_WPA_IE_LEN 64
577
578#define NETWORK_EMPTY_ESSID (1<<0)
579#define NETWORK_HAS_OFDM (1<<1)
580#define NETWORK_HAS_CCK (1<<2)
581
582struct ieee80211_network {
583 /* These entries are used to identify a unique network */
584 u8 bssid[ETH_ALEN];
585 u8 channel;
586 /* Ensure null-terminated for any debug msgs */
587 u8 ssid[IW_ESSID_MAX_SIZE + 1];
588 u8 ssid_len;
589
590 /* These are network statistics */
591 struct ieee80211_rx_stats stats;
592 u16 capability;
593 u8 rates[MAX_RATES_LENGTH];
594 u8 rates_len;
595 u8 rates_ex[MAX_RATES_EX_LENGTH];
596 u8 rates_ex_len;
597 unsigned long last_scanned;
598 u8 mode;
599 u8 flags;
600 u32 last_associate;
601 u32 time_stamp[2];
602 u16 beacon_interval;
603 u16 listen_interval;
604 u16 atim_window;
605 u8 wpa_ie[MAX_WPA_IE_LEN];
606 size_t wpa_ie_len;
607 u8 rsn_ie[MAX_WPA_IE_LEN];
608 size_t rsn_ie_len;
609 struct list_head list;
610};
611
612enum ieee80211_state {
613 IEEE80211_UNINITIALIZED = 0,
614 IEEE80211_INITIALIZED,
615 IEEE80211_ASSOCIATING,
616 IEEE80211_ASSOCIATED,
617 IEEE80211_AUTHENTICATING,
618 IEEE80211_AUTHENTICATED,
619 IEEE80211_SHUTDOWN
620};
621
622#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
623#define DEFAULT_FTS 2346
624#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
625#define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
626
627
628extern inline int is_multicast_ether_addr(const u8 *addr)
629{
630 return ((addr[0] != 0xff) && (0x01 & addr[0]));
631}
632
633extern inline int is_broadcast_ether_addr(const u8 *addr)
634{
635 return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \
636 (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
637}
638
639#define CFG_IEEE80211_RESERVE_FCS (1<<0)
640#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
641
642struct ieee80211_device {
643 struct net_device *dev;
644
645 /* Bookkeeping structures */
646 struct net_device_stats stats;
647 struct ieee80211_stats ieee_stats;
648
649 /* Probe / Beacon management */
650 struct list_head network_free_list;
651 struct list_head network_list;
652 struct ieee80211_network *networks;
653 int scans;
654 int scan_age;
655
656 int iw_mode; /* operating mode (IW_MODE_*) */
657
658 spinlock_t lock;
659
660 int tx_headroom; /* Set to size of any additional room needed at front
661 * of allocated Tx SKBs */
662 u32 config;
663
664 /* WEP and other encryption related settings at the device level */
665 int open_wep; /* Set to 1 to allow unencrypted frames */
666
667 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
668 * WEP key changes */
669
670 /* If the host performs {en,de}cryption, then set to 1 */
671 int host_encrypt;
672 int host_decrypt;
673 int ieee802_1x; /* is IEEE 802.1X used */
674
675 /* WPA data */
676 int wpa_enabled;
677 int drop_unencrypted;
678 int tkip_countermeasures;
679 int privacy_invoked;
680 size_t wpa_ie_len;
681 u8 *wpa_ie;
682
683 struct list_head crypt_deinit_list;
684 struct ieee80211_crypt_data *crypt[WEP_KEYS];
685 int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
686 struct timer_list crypt_deinit_timer;
687
688 int bcrx_sta_key; /* use individual keys to override default keys even
689 * with RX of broad/multicast frames */
690
691 /* Fragmentation structures */
692 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
693 unsigned int frag_next_idx;
694 u16 fts; /* Fragmentation Threshold */
695
696 /* Association info */
697 u8 bssid[ETH_ALEN];
698
699 enum ieee80211_state state;
700
701 int mode; /* A, B, G */
702 int modulation; /* CCK, OFDM */
703 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
704 int abg_ture; /* ABG flag */
705
706 /* Callback functions */
707 void (*set_security)(struct net_device *dev,
708 struct ieee80211_security *sec);
709 int (*hard_start_xmit)(struct ieee80211_txb *txb,
710 struct net_device *dev);
711 int (*reset_port)(struct net_device *dev);
712
713 /* This must be the last item so that it points to the data
714 * allocated beyond this structure by alloc_ieee80211 */
715 u8 priv[0];
716};
717
718#define IEEE_A (1<<0)
719#define IEEE_B (1<<1)
720#define IEEE_G (1<<2)
721#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
722
723extern inline void *ieee80211_priv(struct net_device *dev)
724{
725 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
726}
727
728extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
729{
730 /* Single white space is for Linksys APs */
731 if (essid_len == 1 && essid[0] == ' ')
732 return 1;
733
734 /* Otherwise, if the entire essid is 0, we assume it is hidden */
735 while (essid_len) {
736 essid_len--;
737 if (essid[essid_len] != '\0')
738 return 0;
739 }
740
741 return 1;
742}
743
744extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
745{
746 /*
747 * It is possible for both access points and our device to support
748 * combinations of modes, so as long as there is one valid combination
749 * of ap/device supported modes, then return success
750 *
751 */
752 if ((mode & IEEE_A) &&
753 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
754 (ieee->freq_band & IEEE80211_52GHZ_BAND))
755 return 1;
756
757 if ((mode & IEEE_G) &&
758 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
759 (ieee->freq_band & IEEE80211_24GHZ_BAND))
760 return 1;
761
762 if ((mode & IEEE_B) &&
763 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
764 (ieee->freq_band & IEEE80211_24GHZ_BAND))
765 return 1;
766
767 return 0;
768}
769
770extern inline int ieee80211_get_hdrlen(u16 fc)
771{
772 int hdrlen = IEEE80211_3ADDR_LEN;
773
774 switch (WLAN_FC_GET_TYPE(fc)) {
775 case IEEE80211_FTYPE_DATA:
776 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
777 hdrlen = IEEE80211_4ADDR_LEN;
778 break;
779 case IEEE80211_FTYPE_CTL:
780 switch (WLAN_FC_GET_STYPE(fc)) {
781 case IEEE80211_STYPE_CTS:
782 case IEEE80211_STYPE_ACK:
783 hdrlen = IEEE80211_1ADDR_LEN;
784 break;
785 default:
786 hdrlen = IEEE80211_2ADDR_LEN;
787 break;
788 }
789 break;
790 }
791
792 return hdrlen;
793}
794
795
796
797/* ieee80211.c */
798extern void free_ieee80211(struct net_device *dev);
799extern struct net_device *alloc_ieee80211(int sizeof_priv);
800
801extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
802
803/* ieee80211_tx.c */
804
805
806extern int ieee80211_xmit(struct sk_buff *skb,
807 struct net_device *dev);
808extern void ieee80211_txb_free(struct ieee80211_txb *);
809
810
811/* ieee80211_rx.c */
812extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
813 struct ieee80211_rx_stats *rx_stats);
814extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
815 struct ieee80211_hdr *header,
816 struct ieee80211_rx_stats *stats);
817
818/* iee80211_wx.c */
819extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
820 struct iw_request_info *info,
821 union iwreq_data *wrqu, char *key);
822extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
823 struct iw_request_info *info,
824 union iwreq_data *wrqu, char *key);
825extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
826 struct iw_request_info *info,
827 union iwreq_data *wrqu, char *key);
828
829
830extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
831{
832 ieee->scans++;
833}
834
835extern inline int ieee80211_get_scans(struct ieee80211_device *ieee)
836{
837 return ieee->scans;
838}
839
840static inline const char *escape_essid(const char *essid, u8 essid_len) {
841 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
842 const char *s = essid;
843 char *d = escaped;
844
845 if (ieee80211_is_empty_essid(essid, essid_len)) {
846 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
847 return escaped;
848 }
849
850 essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
851 while (essid_len--) {
852 if (*s == '\0') {
853 *d++ = '\\';
854 *d++ = '0';
855 s++;
856 } else {
857 *d++ = *s++;
858 }
859 }
860 *d = '\0';
861 return escaped;
862}
863#endif /* IEEE80211_H */
diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h
new file mode 100644
index 000000000000..b58a3bcc0dc0
--- /dev/null
+++ b/include/net/ieee80211_crypt.h
@@ -0,0 +1,86 @@
1/*
2 * Original code based on Host AP (software wireless LAN access point) driver
3 * for Intersil Prism2/2.5/3.
4 *
5 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
6 * <jkmaline@cc.hut.fi>
7 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
8 *
9 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
10 * <jketreno@linux.intel.com>
11 *
12 * Copyright (c) 2004, Intel Corporation
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation. See README and COPYING for
17 * more details.
18 */
19
20/*
21 * This file defines the interface to the ieee80211 crypto module.
22 */
23#ifndef IEEE80211_CRYPT_H
24#define IEEE80211_CRYPT_H
25
26#include <linux/skbuff.h>
27
28struct ieee80211_crypto_ops {
29 const char *name;
30
31 /* init new crypto context (e.g., allocate private data space,
32 * select IV, etc.); returns NULL on failure or pointer to allocated
33 * private data on success */
34 void * (*init)(int keyidx);
35
36 /* deinitialize crypto context and free allocated private data */
37 void (*deinit)(void *priv);
38
39 /* encrypt/decrypt return < 0 on error or >= 0 on success. The return
40 * value from decrypt_mpdu is passed as the keyidx value for
41 * decrypt_msdu. skb must have enough head and tail room for the
42 * encryption; if not, error will be returned; these functions are
43 * called for all MPDUs (i.e., fragments).
44 */
45 int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
46 int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
47
48 /* These functions are called for full MSDUs, i.e. full frames.
49 * These can be NULL if full MSDU operations are not needed. */
50 int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
51 int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
52 void *priv);
53
54 int (*set_key)(void *key, int len, u8 *seq, void *priv);
55 int (*get_key)(void *key, int len, u8 *seq, void *priv);
56
57 /* procfs handler for printing out key information and possible
58 * statistics */
59 char * (*print_stats)(char *p, void *priv);
60
61 /* maximum number of bytes added by encryption; encrypt buf is
62 * allocated with extra_prefix_len bytes, copy of in_buf, and
63 * extra_postfix_len; encrypt need not use all this space, but
64 * the result must start at the beginning of the buffer and correct
65 * length must be returned */
66 int extra_prefix_len, extra_postfix_len;
67
68 struct module *owner;
69};
70
71struct ieee80211_crypt_data {
72 struct list_head list; /* delayed deletion list */
73 struct ieee80211_crypto_ops *ops;
74 void *priv;
75 atomic_t refcnt;
76};
77
78int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops);
79int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops);
80struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name);
81void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int);
82void ieee80211_crypt_deinit_handler(unsigned long);
83void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
84 struct ieee80211_crypt_data **crypt);
85
86#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-13 15:52:02 -0400