tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/******************************************************************************
3 *
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 *
6 * Modifications for inclusion into the Linux staging tree are
7 * Copyright(c) 2010 Larry Finger. All rights reserved.
8 *
9 * Contact information:
10 * WLAN FAE <wlanfae@realtek.com>
11 * Larry Finger <Larry.Finger@lwfinger.net>
12 *
13 ******************************************************************************/
14#ifndef __IEEE80211_H
15#define __IEEE80211_H
16
17#include "osdep_service.h"
18#include "drv_types.h"
19#include "wifi.h"
20#include <linux/compiler.h>
21#include <linux/wireless.h>
22
23#define MGMT_QUEUE_NUM 5
24#define ETH_ALEN 6
25#define IEEE_CMD_SET_WPA_PARAM 1
26#define IEEE_CMD_SET_WPA_IE 2
27#define IEEE_CMD_SET_ENCRYPTION 3
28#define IEEE_CMD_MLME 4
29
30#define IEEE_PARAM_WPA_ENABLED 1
31#define IEEE_PARAM_TKIP_COUNTERMEASURES 2
32#define IEEE_PARAM_DROP_UNENCRYPTED 3
33#define IEEE_PARAM_PRIVACY_INVOKED 4
34#define IEEE_PARAM_AUTH_ALGS 5
35#define IEEE_PARAM_IEEE_802_1X 6
36#define IEEE_PARAM_WPAX_SELECT 7
37
38#define AUTH_ALG_OPEN_SYSTEM 0x1
39#define AUTH_ALG_SHARED_KEY 0x2
40#define AUTH_ALG_LEAP 0x00000004
41
42#define IEEE_MLME_STA_DEAUTH 1
43#define IEEE_MLME_STA_DISASSOC 2
44
45#define IEEE_CRYPT_ERR_UNKNOWN_ALG 2
46#define IEEE_CRYPT_ERR_UNKNOWN_ADDR 3
47#define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED 4
48#define IEEE_CRYPT_ERR_KEY_SET_FAILED 5
49#define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED 6
50#define IEEE_CRYPT_ERR_CARD_CONF_FAILED 7
51
52#define IEEE_CRYPT_ALG_NAME_LEN 16
53
54#define WPA_CIPHER_NONE BIT(0)
55#define WPA_CIPHER_WEP40 BIT(1)
56#define WPA_CIPHER_WEP104 BIT(2)
57#define WPA_CIPHER_TKIP BIT(3)
58#define WPA_CIPHER_CCMP BIT(4)
59
60#define WPA_SELECTOR_LEN 4
61#define RSN_HEADER_LEN 4
62
63#define RSN_SELECTOR_LEN 4
64
65enum NETWORK_TYPE {
66 WIRELESS_INVALID = 0,
67 WIRELESS_11B = 1,
68 WIRELESS_11G = 2,
69 WIRELESS_11BG = (WIRELESS_11B | WIRELESS_11G),
70 WIRELESS_11A = 4,
71 WIRELESS_11N = 8,
72 WIRELESS_11GN = (WIRELESS_11G | WIRELESS_11N),
73 WIRELESS_11BGN = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
74};
75
76struct ieee_param {
77 u32 cmd;
78 u8 sta_addr[ETH_ALEN];
79 union {
80 struct {
81 u8 name;
82 u32 value;
83 } wpa_param;
84 struct {
85 u32 len;
86 u8 reserved[32];
87 u8 data[0];
88 } wpa_ie;
89 struct {
90 int command;
91 int reason_code;
92 } mlme;
93 struct {
94 u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
95 u8 set_tx;
96 u32 err;
97 u8 idx;
98 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
99 u16 key_len;
100 u8 key[0];
101 } crypt;
102 } u;
103};
104
105#define IEEE80211_DATA_LEN 2304
106/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
107 * 6.2.1.1.2.
108 *
109 * The figure in section 7.1.2 suggests a body size of up to 2312
110 * bytes is allowed, which is a bit confusing, I suspect this
111 * represents the 2304 bytes of real data, plus a possible 8 bytes of
112 * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
113 */
114
115#define IEEE80211_HLEN 30
116#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
117
118/* this is stolen from ipw2200 driver */
119#define IEEE_IBSS_MAC_HASH_SIZE 31
120
121struct ieee_ibss_seq {
122 u8 mac[ETH_ALEN];
123 u16 seq_num;
124 u16 frag_num;
125 unsigned long packet_time;
126 struct list_head list;
127};
128
129struct ieee80211_hdr {
130 __le16 frame_ctl;
131 __le16 duration_id;
132 u8 addr1[ETH_ALEN];
133 u8 addr2[ETH_ALEN];
134 u8 addr3[ETH_ALEN];
135 __le16 seq_ctl;
136 u8 addr4[ETH_ALEN];
137} __packed __aligned(2);
138
139struct ieee80211_hdr_3addr {
140 __le16 frame_ctl;
141 __le16 duration_id;
142 u8 addr1[ETH_ALEN];
143 u8 addr2[ETH_ALEN];
144 u8 addr3[ETH_ALEN];
145 __le16 seq_ctl;
146} __packed __aligned(2);
147
148struct ieee80211_hdr_qos {
149 __le16 frame_ctl;
150 __le16 duration_id;
151 u8 addr1[ETH_ALEN];
152 u8 addr2[ETH_ALEN];
153 u8 addr3[ETH_ALEN];
154 __le16 seq_ctl;
155 u8 addr4[ETH_ALEN];
156 __le16 qc;
157} __packed __aligned(2);
158
159struct ieee80211_hdr_3addr_qos {
160 __le16 frame_ctl;
161 __le16 duration_id;
162 u8 addr1[ETH_ALEN];
163 u8 addr2[ETH_ALEN];
164 u8 addr3[ETH_ALEN];
165 __le16 seq_ctl;
166 __le16 qc;
167} __packed;
168
169struct eapol {
170 u8 snap[6];
171 __be16 ethertype;
172 u8 version;
173 u8 type;
174 __le16 length;
175} __packed;
176
177enum eap_type {
178 EAP_PACKET = 0,
179 EAPOL_START,
180 EAPOL_LOGOFF,
181 EAPOL_KEY,
182 EAPOL_ENCAP_ASF_ALERT
183};
184
185#define IEEE80211_3ADDR_LEN 24
186#define IEEE80211_4ADDR_LEN 30
187#define IEEE80211_FCS_LEN 4
188
189#define MIN_FRAG_THRESHOLD 256U
190#define MAX_FRAG_THRESHOLD 2346U
191
192/* Frame control field constants */
193#define IEEE80211_FCTL_VERS 0x0002
194#define IEEE80211_FCTL_FTYPE 0x000c
195#define IEEE80211_FCTL_STYPE 0x00f0
196#define IEEE80211_FCTL_TODS 0x0100
197#define IEEE80211_FCTL_FROMDS 0x0200
198#define IEEE80211_FCTL_MOREFRAGS 0x0400
199#define IEEE80211_FCTL_RETRY 0x0800
200#define IEEE80211_FCTL_PM 0x1000
201#define IEEE80211_FCTL_MOREDATA 0x2000
202#define IEEE80211_FCTL_WEP 0x4000
203#define IEEE80211_FCTL_ORDER 0x8000
204
205#define IEEE80211_FTYPE_MGMT 0x0000
206#define IEEE80211_FTYPE_CTL 0x0004
207#define IEEE80211_FTYPE_DATA 0x0008
208
209/* management */
210#define IEEE80211_STYPE_ASSOC_REQ 0x0000
211#define IEEE80211_STYPE_ASSOC_RESP 0x0010
212#define IEEE80211_STYPE_REASSOC_REQ 0x0020
213#define IEEE80211_STYPE_REASSOC_RESP 0x0030
214#define IEEE80211_STYPE_PROBE_REQ 0x0040
215#define IEEE80211_STYPE_PROBE_RESP 0x0050
216#define IEEE80211_STYPE_BEACON 0x0080
217#define IEEE80211_STYPE_ATIM 0x0090
218#define IEEE80211_STYPE_DISASSOC 0x00A0
219#define IEEE80211_STYPE_AUTH 0x00B0
220#define IEEE80211_STYPE_DEAUTH 0x00C0
221
222/* control */
223#define IEEE80211_STYPE_PSPOLL 0x00A0
224#define IEEE80211_STYPE_RTS 0x00B0
225#define IEEE80211_STYPE_CTS 0x00C0
226#define IEEE80211_STYPE_ACK 0x00D0
227#define IEEE80211_STYPE_CFEND 0x00E0
228#define IEEE80211_STYPE_CFENDACK 0x00F0
229
230/* data */
231#define IEEE80211_STYPE_DATA 0x0000
232#define IEEE80211_STYPE_DATA_CFACK 0x0010
233#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
234#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
235#define IEEE80211_STYPE_NULLFUNC 0x0040
236#define IEEE80211_STYPE_CFACK 0x0050
237#define IEEE80211_STYPE_CFPOLL 0x0060
238#define IEEE80211_STYPE_CFACKPOLL 0x0070
239#define IEEE80211_QOS_DATAGRP 0x0080
240
241#define IEEE80211_SCTL_FRAG 0x000F
242#define IEEE80211_SCTL_SEQ 0xFFF0
243
244/* QoS,QOS */
245#define NORMAL_ACK 0
246#define NO_ACK 1
247#define NON_EXPLICIT_ACK 2
248#define BLOCK_ACK 3
249
250#ifndef ETH_P_PAE
251#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
252#endif /* ETH_P_PAE */
253
254#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
255
256#define ETH_P_ECONET 0x0018
257
258#ifndef ETH_P_80211_RAW
259#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
260#endif
261
262/* IEEE 802.11 defines */
263
264#define P80211_OUI_LEN 3
265
266struct ieee80211_snap_hdr {
267 u8 dsap; /* always 0xAA */
268 u8 ssap; /* always 0xAA */
269 u8 ctrl; /* always 0x03 */
270 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
271} __packed;
272
273#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
274
275#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
276#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
277
278#define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
279
280#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
281#define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
282
283/* Authentication algorithms */
284#define WLAN_AUTH_OPEN 0
285#define WLAN_AUTH_SHARED_KEY 1
286
287#define WLAN_AUTH_CHALLENGE_LEN 128
288
289#define WLAN_CAPABILITY_BSS BIT(0)
290#define WLAN_CAPABILITY_IBSS BIT(1)
291#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
292#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
293#define WLAN_CAPABILITY_PRIVACY BIT(4)
294#define WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5)
295#define WLAN_CAPABILITY_PBCC BIT(6)
296#define WLAN_CAPABILITY_CHANNEL_AGILITY BIT(7)
297#define WLAN_CAPABILITY_SHORT_SLOT BIT(10)
298
299/* Information Element IDs */
300#define WLAN_EID_SSID 0
301#define WLAN_EID_SUPP_RATES 1
302#define WLAN_EID_FH_PARAMS 2
303#define WLAN_EID_DS_PARAMS 3
304#define WLAN_EID_CF_PARAMS 4
305#define WLAN_EID_TIM 5
306#define WLAN_EID_IBSS_PARAMS 6
307#define WLAN_EID_CHALLENGE 16
308#define WLAN_EID_RSN 48
309#define WLAN_EID_GENERIC 221
310
311#define IEEE80211_MGMT_HDR_LEN 24
312#define IEEE80211_DATA_HDR3_LEN 24
313#define IEEE80211_DATA_HDR4_LEN 30
314
315#define IEEE80211_STATMASK_SIGNAL BIT(0)
316#define IEEE80211_STATMASK_RSSI BIT(1)
317#define IEEE80211_STATMASK_NOISE BIT(2)
318#define IEEE80211_STATMASK_RATE BIT(3)
319#define IEEE80211_STATMASK_WEMASK 0x7
320
321#define IEEE80211_CCK_MODULATION BIT(0)
322#define IEEE80211_OFDM_MODULATION BIT(1)
323
324#define IEEE80211_24GHZ_BAND BIT(0)
325#define IEEE80211_52GHZ_BAND BIT(1)
326
327#define IEEE80211_CCK_RATE_LEN 4
328#define IEEE80211_NUM_OFDM_RATESLEN 8
329
330#define IEEE80211_CCK_RATE_1MB 0x02
331#define IEEE80211_CCK_RATE_2MB 0x04
332#define IEEE80211_CCK_RATE_5MB 0x0B
333#define IEEE80211_CCK_RATE_11MB 0x16
334#define IEEE80211_OFDM_RATE_LEN 8
335#define IEEE80211_OFDM_RATE_6MB 0x0C
336#define IEEE80211_OFDM_RATE_9MB 0x12
337#define IEEE80211_OFDM_RATE_12MB 0x18
338#define IEEE80211_OFDM_RATE_18MB 0x24
339#define IEEE80211_OFDM_RATE_24MB 0x30
340#define IEEE80211_OFDM_RATE_36MB 0x48
341#define IEEE80211_OFDM_RATE_48MB 0x60
342#define IEEE80211_OFDM_RATE_54MB 0x6C
343#define IEEE80211_BASIC_RATE_MASK 0x80
344
345#define IEEE80211_CCK_RATE_1MB_MASK BIT(0)
346#define IEEE80211_CCK_RATE_2MB_MASK BIT(1)
347#define IEEE80211_CCK_RATE_5MB_MASK BIT(2)
348#define IEEE80211_CCK_RATE_11MB_MASK BIT(3)
349#define IEEE80211_OFDM_RATE_6MB_MASK BIT(4)
350#define IEEE80211_OFDM_RATE_9MB_MASK BIT(5)
351#define IEEE80211_OFDM_RATE_12MB_MASK BIT(6)
352#define IEEE80211_OFDM_RATE_18MB_MASK BIT(7)
353#define IEEE80211_OFDM_RATE_24MB_MASK BIT(8)
354#define IEEE80211_OFDM_RATE_36MB_MASK BIT(9)
355#define IEEE80211_OFDM_RATE_48MB_MASK BIT(10)
356#define IEEE80211_OFDM_RATE_54MB_MASK BIT(11)
357
358#define IEEE80211_CCK_RATES_MASK 0x0000000F
359#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
360 IEEE80211_CCK_RATE_2MB_MASK)
361#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
362 IEEE80211_CCK_RATE_5MB_MASK | \
363 IEEE80211_CCK_RATE_11MB_MASK)
364
365#define IEEE80211_OFDM_RATES_MASK 0x00000FF0
366#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
367 IEEE80211_OFDM_RATE_12MB_MASK | \
368 IEEE80211_OFDM_RATE_24MB_MASK)
369#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
370 IEEE80211_OFDM_RATE_9MB_MASK | \
371 IEEE80211_OFDM_RATE_18MB_MASK | \
372 IEEE80211_OFDM_RATE_36MB_MASK | \
373 IEEE80211_OFDM_RATE_48MB_MASK | \
374 IEEE80211_OFDM_RATE_54MB_MASK)
375#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
376 IEEE80211_CCK_DEFAULT_RATES_MASK)
377
378#define IEEE80211_NUM_OFDM_RATES 8
379#define IEEE80211_NUM_CCK_RATES 4
380#define IEEE80211_OFDM_SHIFT_MASK_A 4
381
382/* NOTE: This data is for statistical purposes; not all hardware provides this
383 * information for frames received. Not setting these will not cause
384 * any adverse affects.
385 */
386struct ieee80211_rx_stats {
387 s8 rssi;
388 u8 signal;
389 u8 noise;
390 u8 received_channel;
391 u16 rate; /* in 100 kbps */
392 u8 mask;
393 u8 freq;
394 u16 len;
395};
396
397/* IEEE 802.11 requires that STA supports concurrent reception of at least
398 * three fragmented frames. This define can be increased to support more
399 * concurrent frames, but it should be noted that each entry can consume about
400 * 2 kB of RAM and increasing cache size will slow down frame reassembly.
401 */
402#define IEEE80211_FRAG_CACHE_LEN 4
403
404struct ieee80211_frag_entry {
405 u32 first_frag_time;
406 uint seq;
407 uint last_frag;
408 uint qos; /*jackson*/
409 uint tid; /*jackson*/
410 struct sk_buff *skb;
411 u8 src_addr[ETH_ALEN];
412 u8 dst_addr[ETH_ALEN];
413};
414
415struct ieee80211_stats {
416 uint tx_unicast_frames;
417 uint tx_multicast_frames;
418 uint tx_fragments;
419 uint tx_unicast_octets;
420 uint tx_multicast_octets;
421 uint tx_deferred_transmissions;
422 uint tx_single_retry_frames;
423 uint tx_multiple_retry_frames;
424 uint tx_retry_limit_exceeded;
425 uint tx_discards;
426 uint rx_unicast_frames;
427 uint rx_multicast_frames;
428 uint rx_fragments;
429 uint rx_unicast_octets;
430 uint rx_multicast_octets;
431 uint rx_fcs_errors;
432 uint rx_discards_no_buffer;
433 uint tx_discards_wrong_sa;
434 uint rx_discards_undecryptable;
435 uint rx_message_in_msg_fragments;
436 uint rx_message_in_bad_msg_fragments;
437};
438
439struct ieee80211_softmac_stats {
440 uint rx_ass_ok;
441 uint rx_ass_err;
442 uint rx_probe_rq;
443 uint tx_probe_rs;
444 uint tx_beacons;
445 uint rx_auth_rq;
446 uint rx_auth_rs_ok;
447 uint rx_auth_rs_err;
448 uint tx_auth_rq;
449 uint no_auth_rs;
450 uint no_ass_rs;
451 uint tx_ass_rq;
452 uint rx_ass_rq;
453 uint tx_probe_rq;
454 uint reassoc;
455 uint swtxstop;
456 uint swtxawake;
457};
458
459#define SEC_KEY_1 BIT(0)
460#define SEC_KEY_2 BIT(1)
461#define SEC_KEY_3 BIT(2)
462#define SEC_KEY_4 BIT(3)
463#define SEC_ACTIVE_KEY BIT(4)
464#define SEC_AUTH_MODE BIT(5)
465#define SEC_UNICAST_GROUP BIT(6)
466#define SEC_LEVEL BIT(7)
467#define SEC_ENABLED BIT(8)
468
469#define SEC_LEVEL_0 0 /* None */
470#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
471#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
472#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
473#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
474
475#define WEP_KEYS 4
476#define WEP_KEY_LEN 13
477
478struct ieee80211_security {
479 u16 active_key:2,
480 enabled:1,
481 auth_mode:2,
482 auth_algo:4,
483 unicast_uses_group:1;
484 u8 key_sizes[WEP_KEYS];
485 u8 keys[WEP_KEYS][WEP_KEY_LEN];
486 u8 level;
487 u16 flags;
488} __packed;
489
490/*
491 *
492 * 802.11 data frame from AP
493 *
494 * ,-------------------------------------------------------------------.
495 * Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
496 * |------|------|---------|---------|---------|------|---------|------|
497 * Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
498 * | | tion | (BSSID) | | | ence | data | |
499 * `-------------------------------------------------------------------'
500 *
501 * Total: 28-2340 bytes
502 *
503 */
504
505struct ieee80211_header_data {
506 __le16 frame_ctl;
507 __le16 duration_id;
508 u8 addr1[6];
509 u8 addr2[6];
510 u8 addr3[6];
511 __le16 seq_ctrl;
512} __packed __aligned(2);
513
514#define BEACON_PROBE_SSID_ID_POSITION 12
515
516/* Management Frame Information Element Types */
517#define MFIE_TYPE_SSID 0
518#define MFIE_TYPE_RATES 1
519#define MFIE_TYPE_FH_SET 2
520#define MFIE_TYPE_DS_SET 3
521#define MFIE_TYPE_CF_SET 4
522#define MFIE_TYPE_TIM 5
523#define MFIE_TYPE_IBSS_SET 6
524#define MFIE_TYPE_CHALLENGE 16
525#define MFIE_TYPE_ERP 42
526#define MFIE_TYPE_RSN 48
527#define MFIE_TYPE_RATES_EX 50
528#define MFIE_TYPE_GENERIC 221
529
530struct ieee80211_info_element_hdr {
531 u8 id;
532 u8 len;
533} __packed;
534
535struct ieee80211_info_element {
536 u8 id;
537 u8 len;
538 u8 data[0];
539} __packed;
540
541/*
542 * These are the data types that can make up management packets
543 *
544 __le16 auth_algorithm;
545 __le16 auth_sequence;
546 __le16 beacon_interval;
547 __le16 capability;
548 u8 current_ap[ETH_ALEN];
549 __le16 listen_interval;
550 struct {
551 u16 association_id:14, reserved:2;
552 } __packed;
553 __le32 time_stamp[2];
554 __le16 reason;
555 __le16 status;
556*/
557
558#define IEEE80211_DEFAULT_TX_ESSID "Penguin"
559#define IEEE80211_DEFAULT_BASIC_RATE 10
560
561struct ieee80211_authentication {
562 struct ieee80211_header_data header;
563 __le16 algorithm;
564 __le16 transaction;
565 __le16 status;
566} __packed;
567
568struct ieee80211_probe_response {
569 struct ieee80211_header_data header;
570 __le32 time_stamp[2];
571 __le16 beacon_interval;
572 __le16 capability;
573 struct ieee80211_info_element info_element;
574} __packed;
575
576struct ieee80211_probe_request {
577 struct ieee80211_header_data header;
578} __packed;
579
580struct ieee80211_assoc_request_frame {
581 struct ieee80211_hdr_3addr header;
582 __le16 capability;
583 __le16 listen_interval;
584 struct ieee80211_info_element_hdr info_element;
585} __packed;
586
587struct ieee80211_assoc_response_frame {
588 struct ieee80211_hdr_3addr header;
589 __le16 capability;
590 __le16 status;
591 __le16 aid;
592} __packed;
593
594struct ieee80211_txb {
595 u8 nr_frags;
596 u8 encrypted;
597 u16 reserved;
598 u16 frag_size;
599 u16 payload_size;
600 struct sk_buff *fragments[0];
601};
602
603/* SWEEP TABLE ENTRIES NUMBER*/
604#define MAX_SWEEP_TAB_ENTRIES 42
605#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
606/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
607 * only use 8, and then use extended rates for the remaining supported
608 * rates. Other APs, however, stick all of their supported rates on the
609 * main rates information element...
610 */
611#define MAX_RATES_LENGTH ((u8)12)
612#define MAX_RATES_EX_LENGTH ((u8)16)
613#define MAX_NETWORK_COUNT 128
614#define MAX_CHANNEL_NUMBER 161
615#define IEEE80211_SOFTMAC_SCAN_TIME 400
616/*(HZ / 2)*/
617#define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
618
619#define CRC_LENGTH 4U
620
621#define MAX_WPA_IE_LEN 128
622
623#define NETWORK_EMPTY_ESSID BIT(0)
624#define NETWORK_HAS_OFDM BIT(1)
625#define NETWORK_HAS_CCK BIT(2)
626
627#define IEEE80211_DTIM_MBCAST 4
628#define IEEE80211_DTIM_UCAST 2
629#define IEEE80211_DTIM_VALID 1
630#define IEEE80211_DTIM_INVALID 0
631
632#define IEEE80211_PS_DISABLED 0
633#define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
634#define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
635#define IW_ESSID_MAX_SIZE 32
636/*
637 * join_res:
638 * -1: authentication fail
639 * -2: association fail
640 * > 0: TID
641 */
642
643enum ieee80211_state {
644 /* the card is not linked at all */
645 IEEE80211_NOLINK = 0,
646 /* IEEE80211_ASSOCIATING* are for BSS client mode
647 * the driver shall not perform RX filtering unless
648 * the state is LINKED.
649 * The driver shall just check for the state LINKED and
650 * defaults to NOLINK for ALL the other states (including
651 * LINKED_SCANNING)
652 */
653 /* the association procedure will start (wq scheduling)*/
654 IEEE80211_ASSOCIATING,
655 IEEE80211_ASSOCIATING_RETRY,
656 /* the association procedure is sending AUTH request*/
657 IEEE80211_ASSOCIATING_AUTHENTICATING,
658 /* the association procedure has successfully authenticated
659 * and is sending association request
660 */
661 IEEE80211_ASSOCIATING_AUTHENTICATED,
662 /* the link is ok. the card associated to a BSS or linked
663 * to a ibss cell or acting as an AP and creating the bss
664 */
665 IEEE80211_LINKED,
666 /* same as LINKED, but the driver shall apply RX filter
667 * rules as we are in NO_LINK mode. As the card is still
668 * logically linked, but it is doing a syncro site survey
669 * then it will be back to LINKED state.
670 */
671 IEEE80211_LINKED_SCANNING,
672};
673
674#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
675#define DEFAULT_FTS 2346
676
677#define CFG_IEEE80211_RESERVE_FCS BIT(0)
678#define CFG_IEEE80211_COMPUTE_FCS BIT(1)
679
680#define MAXTID 16
681
682#define IEEE_A BIT(0)
683#define IEEE_B BIT(1)
684#define IEEE_G BIT(2)
685#define IEEE_MODE_MASK (IEEE_A | IEEE_B | IEEE_G)
686
687static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
688{
689 /* Single white space is for Linksys APs */
690 if (essid_len == 1 && essid[0] == ' ')
691 return 1;
692 /* Otherwise, if the entire essid is 0, we assume it is hidden */
693 while (essid_len) {
694 essid_len--;
695 if (essid[essid_len] != '\0')
696 return 0;
697 }
698 return 1;
699}
700
701static inline int ieee80211_get_hdrlen(u16 fc)
702{
703 int hdrlen = 24;
704
705 switch (WLAN_FC_GET_TYPE(fc)) {
706 case IEEE80211_FTYPE_DATA:
707 if (fc & IEEE80211_QOS_DATAGRP)
708 hdrlen += 2;
709 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
710 hdrlen += 6; /* Addr4 */
711 break;
712 case IEEE80211_FTYPE_CTL:
713 switch (WLAN_FC_GET_STYPE(fc)) {
714 case IEEE80211_STYPE_CTS:
715 case IEEE80211_STYPE_ACK:
716 hdrlen = 10;
717 break;
718 default:
719 hdrlen = 16;
720 break;
721 }
722 break;
723 }
724 return hdrlen;
725}
726
727struct registry_priv;
728
729u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
730u8 *r8712_get_ie(u8 *pbuf, sint index, uint *len, sint limit);
731unsigned char *r8712_get_wpa_ie(unsigned char *pie, uint *rsn_ie_len, int limit);
732unsigned char *r8712_get_wpa2_ie(unsigned char *pie, uint *rsn_ie_len,
733 int limit);
734int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
735 int *pairwise_cipher);
736int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
737 int *pairwise_cipher);
738int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
739 u8 *wpa_ie, u16 *wpa_len);
740int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
741int r8712_generate_ie(struct registry_priv *pregistrypriv);
742uint r8712_is_cckrates_included(u8 *rate);
743uint r8712_is_cckratesonly_included(u8 *rate);
744
745#endif /* IEEE80211_H */
746