1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * Modifications for inclusion into the Linux staging tree are
19 * Copyright(c) 2010 Larry Finger. All rights reserved.
20 *
21 * Contact information:
22 * WLAN FAE <wlanfae@realtek.com>
23 * Larry Finger <Larry.Finger@lwfinger.net>
24 *
25 ******************************************************************************/
26 #ifndef __IEEE80211_H
27 #define __IEEE80211_H
28
29 #include "osdep_service.h"
30 #include "drv_types.h"
31 #include "wifi.h"
32 #include <linux/compiler.h>
33 #include <linux/wireless.h>
34
35 #define MGMT_QUEUE_NUM 5
36 #define ETH_ALEN 6
37 #define IEEE_CMD_SET_WPA_PARAM 1
38 #define IEEE_CMD_SET_WPA_IE 2
39 #define IEEE_CMD_SET_ENCRYPTION 3
40 #define IEEE_CMD_MLME 4
41
42 #define IEEE_PARAM_WPA_ENABLED 1
43 #define IEEE_PARAM_TKIP_COUNTERMEASURES 2
44 #define IEEE_PARAM_DROP_UNENCRYPTED 3
45 #define IEEE_PARAM_PRIVACY_INVOKED 4
46 #define IEEE_PARAM_AUTH_ALGS 5
47 #define IEEE_PARAM_IEEE_802_1X 6
48 #define IEEE_PARAM_WPAX_SELECT 7
49
50 #define AUTH_ALG_OPEN_SYSTEM 0x1
51 #define AUTH_ALG_SHARED_KEY 0x2
52 #define AUTH_ALG_LEAP 0x00000004
53
54 #define IEEE_MLME_STA_DEAUTH 1
55 #define IEEE_MLME_STA_DISASSOC 2
56
57 #define IEEE_CRYPT_ERR_UNKNOWN_ALG 2
58 #define IEEE_CRYPT_ERR_UNKNOWN_ADDR 3
59 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED 4
60 #define IEEE_CRYPT_ERR_KEY_SET_FAILED 5
61 #define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED 6
62 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED 7
63
64
65 #define IEEE_CRYPT_ALG_NAME_LEN 16
66
67 #define WPA_CIPHER_NONE BIT(0)
68 #define WPA_CIPHER_WEP40 BIT(1)
69 #define WPA_CIPHER_WEP104 BIT(2)
70 #define WPA_CIPHER_TKIP BIT(3)
71 #define WPA_CIPHER_CCMP BIT(4)
72
73
74
75 #define WPA_SELECTOR_LEN 4
76 #define RSN_HEADER_LEN 4
77
78 #define RSN_SELECTOR_LEN 4
79
80 enum NETWORK_TYPE {
81 WIRELESS_INVALID = 0,
82 WIRELESS_11B = 1,
83 WIRELESS_11G = 2,
84 WIRELESS_11BG = (WIRELESS_11B | WIRELESS_11G),
85 WIRELESS_11A = 4,
86 WIRELESS_11N = 8,
87 WIRELESS_11GN = (WIRELESS_11G | WIRELESS_11N),
88 WIRELESS_11BGN = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
89 };
90
91
92 struct ieee_param {
93 u32 cmd;
94 u8 sta_addr[ETH_ALEN];
95 union {
96 struct {
97 u8 name;
98 u32 value;
99 } wpa_param;
100 struct {
101 u32 len;
102 u8 reserved[32];
103 u8 data[0];
104 } wpa_ie;
105 struct {
106 int command;
107 int reason_code;
108 } mlme;
109 struct {
110 u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
111 u8 set_tx;
112 u32 err;
113 u8 idx;
114 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
115 u16 key_len;
116 u8 key[0];
117 } crypt;
118 } u;
119 };
120
121 #define IEEE80211_DATA_LEN 2304
122 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
123 * 6.2.1.1.2.
124 *
125 * The figure in section 7.1.2 suggests a body size of up to 2312
126 * bytes is allowed, which is a bit confusing, I suspect this
127 * represents the 2304 bytes of real data, plus a possible 8 bytes of
128 * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
129 */
130
131 #define IEEE80211_HLEN 30
132 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
133
134 /* this is stolen from ipw2200 driver */
135 #define IEEE_IBSS_MAC_HASH_SIZE 31
136
137 struct ieee_ibss_seq {
138 u8 mac[ETH_ALEN];
139 u16 seq_num;
140 u16 frag_num;
141 unsigned long packet_time;
142 struct list_head list;
143 };
144
145 struct ieee80211_hdr {
146 __le16 frame_ctl;
147 __le16 duration_id;
148 u8 addr1[ETH_ALEN];
149 u8 addr2[ETH_ALEN];
150 u8 addr3[ETH_ALEN];
151 __le16 seq_ctl;
152 u8 addr4[ETH_ALEN];
153 } __packed __aligned(2);
154
155 struct ieee80211_hdr_3addr {
156 __le16 frame_ctl;
157 __le16 duration_id;
158 u8 addr1[ETH_ALEN];
159 u8 addr2[ETH_ALEN];
160 u8 addr3[ETH_ALEN];
161 __le16 seq_ctl;
162 } __packed __aligned(2);
163
164
165 struct ieee80211_hdr_qos {
166 __le16 frame_ctl;
167 __le16 duration_id;
168 u8 addr1[ETH_ALEN];
169 u8 addr2[ETH_ALEN];
170 u8 addr3[ETH_ALEN];
171 __le16 seq_ctl;
172 u8 addr4[ETH_ALEN];
173 __le16 qc;
174 } __packed __aligned(2);
175
176 struct ieee80211_hdr_3addr_qos {
177 __le16 frame_ctl;
178 __le16 duration_id;
179 u8 addr1[ETH_ALEN];
180 u8 addr2[ETH_ALEN];
181 u8 addr3[ETH_ALEN];
182 __le16 seq_ctl;
183 __le16 qc;
184 } __packed;
185
186 struct eapol {
187 u8 snap[6];
188 __be16 ethertype;
189 u8 version;
190 u8 type;
191 __le16 length;
192 } __packed;
193
194
195 enum eap_type {
196 EAP_PACKET = 0,
197 EAPOL_START,
198 EAPOL_LOGOFF,
199 EAPOL_KEY,
200 EAPOL_ENCAP_ASF_ALERT
201 };
202
203 #define IEEE80211_3ADDR_LEN 24
204 #define IEEE80211_4ADDR_LEN 30
205 #define IEEE80211_FCS_LEN 4
206
207 #define MIN_FRAG_THRESHOLD 256U
208 #define MAX_FRAG_THRESHOLD 2346U
209
210 /* Frame control field constants */
211 #define IEEE80211_FCTL_VERS 0x0002
212 #define IEEE80211_FCTL_FTYPE 0x000c
213 #define IEEE80211_FCTL_STYPE 0x00f0
214 #define IEEE80211_FCTL_TODS 0x0100
215 #define IEEE80211_FCTL_FROMDS 0x0200
216 #define IEEE80211_FCTL_MOREFRAGS 0x0400
217 #define IEEE80211_FCTL_RETRY 0x0800
218 #define IEEE80211_FCTL_PM 0x1000
219 #define IEEE80211_FCTL_MOREDATA 0x2000
220 #define IEEE80211_FCTL_WEP 0x4000
221 #define IEEE80211_FCTL_ORDER 0x8000
222
223 #define IEEE80211_FTYPE_MGMT 0x0000
224 #define IEEE80211_FTYPE_CTL 0x0004
225 #define IEEE80211_FTYPE_DATA 0x0008
226
227 /* management */
228 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
229 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
230 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
231 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
232 #define IEEE80211_STYPE_PROBE_REQ 0x0040
233 #define IEEE80211_STYPE_PROBE_RESP 0x0050
234 #define IEEE80211_STYPE_BEACON 0x0080
235 #define IEEE80211_STYPE_ATIM 0x0090
236 #define IEEE80211_STYPE_DISASSOC 0x00A0
237 #define IEEE80211_STYPE_AUTH 0x00B0
238 #define IEEE80211_STYPE_DEAUTH 0x00C0
239
240 /* control */
241 #define IEEE80211_STYPE_PSPOLL 0x00A0
242 #define IEEE80211_STYPE_RTS 0x00B0
243 #define IEEE80211_STYPE_CTS 0x00C0
244 #define IEEE80211_STYPE_ACK 0x00D0
245 #define IEEE80211_STYPE_CFEND 0x00E0
246 #define IEEE80211_STYPE_CFENDACK 0x00F0
247
248 /* data */
249 #define IEEE80211_STYPE_DATA 0x0000
250 #define IEEE80211_STYPE_DATA_CFACK 0x0010
251 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
252 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
253 #define IEEE80211_STYPE_NULLFUNC 0x0040
254 #define IEEE80211_STYPE_CFACK 0x0050
255 #define IEEE80211_STYPE_CFPOLL 0x0060
256 #define IEEE80211_STYPE_CFACKPOLL 0x0070
257 #define IEEE80211_QOS_DATAGRP 0x0080
258 #define IEEE80211_QoS_DATAGRP IEEE80211_QOS_DATAGRP
259
260 #define IEEE80211_SCTL_FRAG 0x000F
261 #define IEEE80211_SCTL_SEQ 0xFFF0
262
263 /* QoS,QOS */
264 #define NORMAL_ACK 0
265 #define NO_ACK 1
266 #define NON_EXPLICIT_ACK 2
267 #define BLOCK_ACK 3
268
269 #ifndef ETH_P_PAE
270 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
271 #endif /* ETH_P_PAE */
272
273 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
274
275 #define ETH_P_ECONET 0x0018
276
277 #ifndef ETH_P_80211_RAW
278 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
279 #endif
280
281 /* IEEE 802.11 defines */
282
283 #define P80211_OUI_LEN 3
284
285 struct ieee80211_snap_hdr {
286 u8 dsap; /* always 0xAA */
287 u8 ssap; /* always 0xAA */
288 u8 ctrl; /* always 0x03 */
289 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
290 } __packed;
291
292 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
293
294 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
295 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
296
297 #define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
298
299 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
300 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
301
302 /* Authentication algorithms */
303 #define WLAN_AUTH_OPEN 0
304 #define WLAN_AUTH_SHARED_KEY 1
305
306 #define WLAN_AUTH_CHALLENGE_LEN 128
307
308 #define WLAN_CAPABILITY_BSS (1<<0)
309 #define WLAN_CAPABILITY_IBSS (1<<1)
310 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
311 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
312 #define WLAN_CAPABILITY_PRIVACY (1<<4)
313 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
314 #define WLAN_CAPABILITY_PBCC (1<<6)
315 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
316 #define WLAN_CAPABILITY_SHORT_SLOT (1<<10)
317
318 /* Information Element IDs */
319 #define WLAN_EID_SSID 0
320 #define WLAN_EID_SUPP_RATES 1
321 #define WLAN_EID_FH_PARAMS 2
322 #define WLAN_EID_DS_PARAMS 3
323 #define WLAN_EID_CF_PARAMS 4
324 #define WLAN_EID_TIM 5
325 #define WLAN_EID_IBSS_PARAMS 6
326 #define WLAN_EID_CHALLENGE 16
327 #define WLAN_EID_RSN 48
328 #define WLAN_EID_GENERIC 221
329
330 #define IEEE80211_MGMT_HDR_LEN 24
331 #define IEEE80211_DATA_HDR3_LEN 24
332 #define IEEE80211_DATA_HDR4_LEN 30
333
334
335 #define IEEE80211_STATMASK_SIGNAL (1<<0)
336 #define IEEE80211_STATMASK_RSSI (1<<1)
337 #define IEEE80211_STATMASK_NOISE (1<<2)
338 #define IEEE80211_STATMASK_RATE (1<<3)
339 #define IEEE80211_STATMASK_WEMASK 0x7
340
341
342 #define IEEE80211_CCK_MODULATION (1<<0)
343 #define IEEE80211_OFDM_MODULATION (1<<1)
344
345 #define IEEE80211_24GHZ_BAND (1<<0)
346 #define IEEE80211_52GHZ_BAND (1<<1)
347
348 #define IEEE80211_CCK_RATE_LEN 4
349 #define IEEE80211_NUM_OFDM_RATESLEN 8
350
351
352 #define IEEE80211_CCK_RATE_1MB 0x02
353 #define IEEE80211_CCK_RATE_2MB 0x04
354 #define IEEE80211_CCK_RATE_5MB 0x0B
355 #define IEEE80211_CCK_RATE_11MB 0x16
356 #define IEEE80211_OFDM_RATE_LEN 8
357 #define IEEE80211_OFDM_RATE_6MB 0x0C
358 #define IEEE80211_OFDM_RATE_9MB 0x12
359 #define IEEE80211_OFDM_RATE_12MB 0x18
360 #define IEEE80211_OFDM_RATE_18MB 0x24
361 #define IEEE80211_OFDM_RATE_24MB 0x30
362 #define IEEE80211_OFDM_RATE_36MB 0x48
363 #define IEEE80211_OFDM_RATE_48MB 0x60
364 #define IEEE80211_OFDM_RATE_54MB 0x6C
365 #define IEEE80211_BASIC_RATE_MASK 0x80
366
367 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
368 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
369 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
370 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
371 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
372 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
373 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
374 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
375 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
376 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
377 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
378 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
379
380 #define IEEE80211_CCK_RATES_MASK 0x0000000F
381 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
382 IEEE80211_CCK_RATE_2MB_MASK)
383 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
384 IEEE80211_CCK_RATE_5MB_MASK | \
385 IEEE80211_CCK_RATE_11MB_MASK)
386
387 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
388 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
389 IEEE80211_OFDM_RATE_12MB_MASK | \
390 IEEE80211_OFDM_RATE_24MB_MASK)
391 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
392 IEEE80211_OFDM_RATE_9MB_MASK | \
393 IEEE80211_OFDM_RATE_18MB_MASK | \
394 IEEE80211_OFDM_RATE_36MB_MASK | \
395 IEEE80211_OFDM_RATE_48MB_MASK | \
396 IEEE80211_OFDM_RATE_54MB_MASK)
397 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
398 IEEE80211_CCK_DEFAULT_RATES_MASK)
399
400 #define IEEE80211_NUM_OFDM_RATES 8
401 #define IEEE80211_NUM_CCK_RATES 4
402 #define IEEE80211_OFDM_SHIFT_MASK_A 4
403
404
405
406
407 /* NOTE: This data is for statistical purposes; not all hardware provides this
408 * information for frames received. Not setting these will not cause
409 * any adverse affects.
410 */
411 struct ieee80211_rx_stats {
412 s8 rssi;
413 u8 signal;
414 u8 noise;
415 u8 received_channel;
416 u16 rate; /* in 100 kbps */
417 u8 mask;
418 u8 freq;
419 u16 len;
420 };
421
422 /* IEEE 802.11 requires that STA supports concurrent reception of at least
423 * three fragmented frames. This define can be increased to support more
424 * concurrent frames, but it should be noted that each entry can consume about
425 * 2 kB of RAM and increasing cache size will slow down frame reassembly.
426 */
427 #define IEEE80211_FRAG_CACHE_LEN 4
428
429 struct ieee80211_frag_entry {
430 u32 first_frag_time;
431 uint seq;
432 uint last_frag;
433 uint qos; /*jackson*/
434 uint tid; /*jackson*/
435 struct sk_buff *skb;
436 u8 src_addr[ETH_ALEN];
437 u8 dst_addr[ETH_ALEN];
438 };
439
440 struct ieee80211_stats {
441 uint tx_unicast_frames;
442 uint tx_multicast_frames;
443 uint tx_fragments;
444 uint tx_unicast_octets;
445 uint tx_multicast_octets;
446 uint tx_deferred_transmissions;
447 uint tx_single_retry_frames;
448 uint tx_multiple_retry_frames;
449 uint tx_retry_limit_exceeded;
450 uint tx_discards;
451 uint rx_unicast_frames;
452 uint rx_multicast_frames;
453 uint rx_fragments;
454 uint rx_unicast_octets;
455 uint rx_multicast_octets;
456 uint rx_fcs_errors;
457 uint rx_discards_no_buffer;
458 uint tx_discards_wrong_sa;
459 uint rx_discards_undecryptable;
460 uint rx_message_in_msg_fragments;
461 uint rx_message_in_bad_msg_fragments;
462 };
463
464 struct ieee80211_softmac_stats {
465 uint rx_ass_ok;
466 uint rx_ass_err;
467 uint rx_probe_rq;
468 uint tx_probe_rs;
469 uint tx_beacons;
470 uint rx_auth_rq;
471 uint rx_auth_rs_ok;
472 uint rx_auth_rs_err;
473 uint tx_auth_rq;
474 uint no_auth_rs;
475 uint no_ass_rs;
476 uint tx_ass_rq;
477 uint rx_ass_rq;
478 uint tx_probe_rq;
479 uint reassoc;
480 uint swtxstop;
481 uint swtxawake;
482 };
483
484 #define SEC_KEY_1 (1<<0)
485 #define SEC_KEY_2 (1<<1)
486 #define SEC_KEY_3 (1<<2)
487 #define SEC_KEY_4 (1<<3)
488 #define SEC_ACTIVE_KEY (1<<4)
489 #define SEC_AUTH_MODE (1<<5)
490 #define SEC_UNICAST_GROUP (1<<6)
491 #define SEC_LEVEL (1<<7)
492 #define SEC_ENABLED (1<<8)
493
494 #define SEC_LEVEL_0 0 /* None */
495 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
496 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
497 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
498 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
499
500 #define WEP_KEYS 4
501 #define WEP_KEY_LEN 13
502
503 struct ieee80211_security {
504 u16 active_key:2,
505 enabled:1,
506 auth_mode:2,
507 auth_algo:4,
508 unicast_uses_group:1;
509 u8 key_sizes[WEP_KEYS];
510 u8 keys[WEP_KEYS][WEP_KEY_LEN];
511 u8 level;
512 u16 flags;
513 } __packed;
514
515 /*
516 *
517 * 802.11 data frame from AP
518 *
519 * ,-------------------------------------------------------------------.
520 * Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
521 * |------|------|---------|---------|---------|------|---------|------|
522 * Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
523 * | | tion | (BSSID) | | | ence | data | |
524 * `-------------------------------------------------------------------'
525 *
526 * Total: 28-2340 bytes
527 *
528 */
529
530 struct ieee80211_header_data {
531 __le16 frame_ctl;
532 __le16 duration_id;
533 u8 addr1[6];
534 u8 addr2[6];
535 u8 addr3[6];
536 __le16 seq_ctrl;
537 } __packed __aligned(2);
538
539 #define BEACON_PROBE_SSID_ID_POSITION 12
540
541 /* Management Frame Information Element Types */
542 #define MFIE_TYPE_SSID 0
543 #define MFIE_TYPE_RATES 1
544 #define MFIE_TYPE_FH_SET 2
545 #define MFIE_TYPE_DS_SET 3
546 #define MFIE_TYPE_CF_SET 4
547 #define MFIE_TYPE_TIM 5
548 #define MFIE_TYPE_IBSS_SET 6
549 #define MFIE_TYPE_CHALLENGE 16
550 #define MFIE_TYPE_ERP 42
551 #define MFIE_TYPE_RSN 48
552 #define MFIE_TYPE_RATES_EX 50
553 #define MFIE_TYPE_GENERIC 221
554
555 struct ieee80211_info_element_hdr {
556 u8 id;
557 u8 len;
558 } __packed;
559
560 struct ieee80211_info_element {
561 u8 id;
562 u8 len;
563 u8 data[0];
564 } __packed;
565
566 /*
567 * These are the data types that can make up management packets
568 *
569 __le16 auth_algorithm;
570 __le16 auth_sequence;
571 __le16 beacon_interval;
572 __le16 capability;
573 u8 current_ap[ETH_ALEN];
574 __le16 listen_interval;
575 struct {
576 u16 association_id:14, reserved:2;
577 } __packed;
578 __le32 time_stamp[2];
579 __le16 reason;
580 __le16 status;
581 */
582
583 #define IEEE80211_DEFAULT_TX_ESSID "Penguin"
584 #define IEEE80211_DEFAULT_BASIC_RATE 10
585
586 struct ieee80211_authentication {
587 struct ieee80211_header_data header;
588 __le16 algorithm;
589 __le16 transaction;
590 __le16 status;
591 } __packed;
592
593 struct ieee80211_probe_response {
594 struct ieee80211_header_data header;
595 __le32 time_stamp[2];
596 __le16 beacon_interval;
597 __le16 capability;
598 struct ieee80211_info_element info_element;
599 } __packed;
600
601 struct ieee80211_probe_request {
602 struct ieee80211_header_data header;
603 } __packed;
604
605 struct ieee80211_assoc_request_frame {
606 struct ieee80211_hdr_3addr header;
607 __le16 capability;
608 __le16 listen_interval;
609 struct ieee80211_info_element_hdr info_element;
610 } __packed;
611
612 struct ieee80211_assoc_response_frame {
613 struct ieee80211_hdr_3addr header;
614 __le16 capability;
615 __le16 status;
616 __le16 aid;
617 } __packed;
618
619 struct ieee80211_txb {
620 u8 nr_frags;
621 u8 encrypted;
622 u16 reserved;
623 u16 frag_size;
624 u16 payload_size;
625 struct sk_buff *fragments[0];
626 };
627
628 /* SWEEP TABLE ENTRIES NUMBER*/
629 #define MAX_SWEEP_TAB_ENTRIES 42
630 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
631 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
632 * only use 8, and then use extended rates for the remaining supported
633 * rates. Other APs, however, stick all of their supported rates on the
634 * main rates information element...
635 */
636 #define MAX_RATES_LENGTH ((u8)12)
637 #define MAX_RATES_EX_LENGTH ((u8)16)
638 #define MAX_NETWORK_COUNT 128
639 #define MAX_CHANNEL_NUMBER 161
640 #define IEEE80211_SOFTMAC_SCAN_TIME 400
641 /*(HZ / 2)*/
642 #define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
643
644 #define CRC_LENGTH 4U
645
646 #define MAX_WPA_IE_LEN 128
647
648 #define NETWORK_EMPTY_ESSID (1<<0)
649 #define NETWORK_HAS_OFDM (1<<1)
650 #define NETWORK_HAS_CCK (1<<2)
651
652 #define IEEE80211_DTIM_MBCAST 4
653 #define IEEE80211_DTIM_UCAST 2
654 #define IEEE80211_DTIM_VALID 1
655 #define IEEE80211_DTIM_INVALID 0
656
657 #define IEEE80211_PS_DISABLED 0
658 #define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
659 #define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
660 #define IW_ESSID_MAX_SIZE 32
661 /*
662 * join_res:
663 * -1: authentication fail
664 * -2: association fail
665 * > 0: TID
666 */
667
668 enum ieee80211_state {
669 /* the card is not linked at all */
670 IEEE80211_NOLINK = 0,
671 /* IEEE80211_ASSOCIATING* are for BSS client mode
672 * the driver shall not perform RX filtering unless
673 * the state is LINKED.
674 * The driver shall just check for the state LINKED and
675 * defaults to NOLINK for ALL the other states (including
676 * LINKED_SCANNING)
677 */
678 /* the association procedure will start (wq scheduling)*/
679 IEEE80211_ASSOCIATING,
680 IEEE80211_ASSOCIATING_RETRY,
681 /* the association procedure is sending AUTH request*/
682 IEEE80211_ASSOCIATING_AUTHENTICATING,
683 /* the association procedure has successfully authenticated
684 * and is sending association request
685 */
686 IEEE80211_ASSOCIATING_AUTHENTICATED,
687 /* the link is ok. the card associated to a BSS or linked
688 * to a ibss cell or acting as an AP and creating the bss
689 */
690 IEEE80211_LINKED,
691 /* same as LINKED, but the driver shall apply RX filter
692 * rules as we are in NO_LINK mode. As the card is still
693 * logically linked, but it is doing a syncro site survey
694 * then it will be back to LINKED state.
695 */
696 IEEE80211_LINKED_SCANNING,
697 };
698
699 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
700 #define DEFAULT_FTS 2346
701
702 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
703 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
704
705 #define MAXTID 16
706
707 #define IEEE_A (1<<0)
708 #define IEEE_B (1<<1)
709 #define IEEE_G (1<<2)
710 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
711
ieee80211_is_empty_essid(const char * essid,int essid_len)712 static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
713 {
714 /* Single white space is for Linksys APs */
715 if (essid_len == 1 && essid[0] == ' ')
716 return 1;
717 /* Otherwise, if the entire essid is 0, we assume it is hidden */
718 while (essid_len) {
719 essid_len--;
720 if (essid[essid_len] != '\0')
721 return 0;
722 }
723 return 1;
724 }
725
ieee80211_get_hdrlen(u16 fc)726 static inline int ieee80211_get_hdrlen(u16 fc)
727 {
728 int hdrlen = 24;
729
730 switch (WLAN_FC_GET_TYPE(fc)) {
731 case IEEE80211_FTYPE_DATA:
732 if (fc & IEEE80211_QOS_DATAGRP)
733 hdrlen += 2;
734 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
735 hdrlen += 6; /* Addr4 */
736 break;
737 case IEEE80211_FTYPE_CTL:
738 switch (WLAN_FC_GET_STYPE(fc)) {
739 case IEEE80211_STYPE_CTS:
740 case IEEE80211_STYPE_ACK:
741 hdrlen = 10;
742 break;
743 default:
744 hdrlen = 16;
745 break;
746 }
747 break;
748 }
749 return hdrlen;
750 }
751
752 struct registry_priv;
753
754 u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
755 u8 *r8712_get_ie(u8 *pbuf, sint index, sint *len, sint limit);
756 unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *rsn_ie_len, int limit);
757 unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len,
758 int limit);
759 int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
760 int *pairwise_cipher);
761 int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
762 int *pairwise_cipher);
763 int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
764 u8 *wpa_ie, u16 *wpa_len);
765 int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
766 int r8712_generate_ie(struct registry_priv *pregistrypriv);
767 uint r8712_is_cckrates_included(u8 *rate);
768 uint r8712_is_cckratesonly_included(u8 *rate);
769
770 #endif /* IEEE80211_H */
771
772