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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, see <http://www.gnu.org/licenses/>.
16 *
17 * Modifications for inclusion into the Linux staging tree are
18 * Copyright(c) 2010 Larry Finger. All rights reserved.
19 *
20 * Contact information:
21 * WLAN FAE <wlanfae@realtek.com>
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 ******************************************************************************/
25#ifndef __IEEE80211_H
26#define __IEEE80211_H
27
28#include "osdep_service.h"
29#include "drv_types.h"
30#include "wifi.h"
31#include <linux/compiler.h>
32#include <linux/wireless.h>
33
34#define MGMT_QUEUE_NUM 5
35#define ETH_ALEN 6
36#define IEEE_CMD_SET_WPA_PARAM 1
37#define IEEE_CMD_SET_WPA_IE 2
38#define IEEE_CMD_SET_ENCRYPTION 3
39#define IEEE_CMD_MLME 4
40
41#define IEEE_PARAM_WPA_ENABLED 1
42#define IEEE_PARAM_TKIP_COUNTERMEASURES 2
43#define IEEE_PARAM_DROP_UNENCRYPTED 3
44#define IEEE_PARAM_PRIVACY_INVOKED 4
45#define IEEE_PARAM_AUTH_ALGS 5
46#define IEEE_PARAM_IEEE_802_1X 6
47#define IEEE_PARAM_WPAX_SELECT 7
48
49#define AUTH_ALG_OPEN_SYSTEM 0x1
50#define AUTH_ALG_SHARED_KEY 0x2
51#define AUTH_ALG_LEAP 0x00000004
52
53#define IEEE_MLME_STA_DEAUTH 1
54#define IEEE_MLME_STA_DISASSOC 2
55
56#define IEEE_CRYPT_ERR_UNKNOWN_ALG 2
57#define IEEE_CRYPT_ERR_UNKNOWN_ADDR 3
58#define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED 4
59#define IEEE_CRYPT_ERR_KEY_SET_FAILED 5
60#define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED 6
61#define IEEE_CRYPT_ERR_CARD_CONF_FAILED 7
62
63#define IEEE_CRYPT_ALG_NAME_LEN 16
64
65#define WPA_CIPHER_NONE BIT(0)
66#define WPA_CIPHER_WEP40 BIT(1)
67#define WPA_CIPHER_WEP104 BIT(2)
68#define WPA_CIPHER_TKIP BIT(3)
69#define WPA_CIPHER_CCMP BIT(4)
70
71#define WPA_SELECTOR_LEN 4
72#define RSN_HEADER_LEN 4
73
74#define RSN_SELECTOR_LEN 4
75
76enum NETWORK_TYPE {
77 WIRELESS_INVALID = 0,
78 WIRELESS_11B = 1,
79 WIRELESS_11G = 2,
80 WIRELESS_11BG = (WIRELESS_11B | WIRELESS_11G),
81 WIRELESS_11A = 4,
82 WIRELESS_11N = 8,
83 WIRELESS_11GN = (WIRELESS_11G | WIRELESS_11N),
84 WIRELESS_11BGN = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
85};
86
87struct ieee_param {
88 u32 cmd;
89 u8 sta_addr[ETH_ALEN];
90 union {
91 struct {
92 u8 name;
93 u32 value;
94 } wpa_param;
95 struct {
96 u32 len;
97 u8 reserved[32];
98 u8 data[0];
99 } wpa_ie;
100 struct {
101 int command;
102 int reason_code;
103 } mlme;
104 struct {
105 u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
106 u8 set_tx;
107 u32 err;
108 u8 idx;
109 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
110 u16 key_len;
111 u8 key[0];
112 } crypt;
113 } u;
114};
115
116#define IEEE80211_DATA_LEN 2304
117/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
118 * 6.2.1.1.2.
119 *
120 * The figure in section 7.1.2 suggests a body size of up to 2312
121 * bytes is allowed, which is a bit confusing, I suspect this
122 * represents the 2304 bytes of real data, plus a possible 8 bytes of
123 * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
124 */
125
126#define IEEE80211_HLEN 30
127#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
128
129/* this is stolen from ipw2200 driver */
130#define IEEE_IBSS_MAC_HASH_SIZE 31
131
132struct ieee_ibss_seq {
133 u8 mac[ETH_ALEN];
134 u16 seq_num;
135 u16 frag_num;
136 unsigned long packet_time;
137 struct list_head list;
138};
139
140struct ieee80211_hdr {
141 u16 frame_ctl;
142 u16 duration_id;
143 u8 addr1[ETH_ALEN];
144 u8 addr2[ETH_ALEN];
145 u8 addr3[ETH_ALEN];
146 u16 seq_ctl;
147 u8 addr4[ETH_ALEN];
148} __packed;
149
150struct ieee80211_hdr_3addr {
151 u16 frame_ctl;
152 u16 duration_id;
153 u8 addr1[ETH_ALEN];
154 u8 addr2[ETH_ALEN];
155 u8 addr3[ETH_ALEN];
156 u16 seq_ctl;
157} __packed;
158
159struct ieee80211_hdr_qos {
160 u16 frame_ctl;
161 u16 duration_id;
162 u8 addr1[ETH_ALEN];
163 u8 addr2[ETH_ALEN];
164 u8 addr3[ETH_ALEN];
165 u16 seq_ctl;
166 u8 addr4[ETH_ALEN];
167 u16 qc;
168} __packed;
169
170struct ieee80211_hdr_3addr_qos {
171 u16 frame_ctl;
172 u16 duration_id;
173 u8 addr1[ETH_ALEN];
174 u8 addr2[ETH_ALEN];
175 u8 addr3[ETH_ALEN];
176 u16 seq_ctl;
177 u16 qc;
178} __packed;
179
180struct eapol {
181 u8 snap[6];
182 u16 ethertype;
183 u8 version;
184 u8 type;
185 u16 length;
186} __packed;
187
188enum eap_type {
189 EAP_PACKET = 0,
190 EAPOL_START,
191 EAPOL_LOGOFF,
192 EAPOL_KEY,
193 EAPOL_ENCAP_ASF_ALERT
194};
195
196#define IEEE80211_3ADDR_LEN 24
197#define IEEE80211_4ADDR_LEN 30
198#define IEEE80211_FCS_LEN 4
199
200#define MIN_FRAG_THRESHOLD 256U
201#define MAX_FRAG_THRESHOLD 2346U
202
203/* Frame control field constants */
204#define IEEE80211_FCTL_VERS 0x0002
205#define IEEE80211_FCTL_FTYPE 0x000c
206#define IEEE80211_FCTL_STYPE 0x00f0
207#define IEEE80211_FCTL_TODS 0x0100
208#define IEEE80211_FCTL_FROMDS 0x0200
209#define IEEE80211_FCTL_MOREFRAGS 0x0400
210#define IEEE80211_FCTL_RETRY 0x0800
211#define IEEE80211_FCTL_PM 0x1000
212#define IEEE80211_FCTL_MOREDATA 0x2000
213#define IEEE80211_FCTL_WEP 0x4000
214#define IEEE80211_FCTL_ORDER 0x8000
215
216#define IEEE80211_FTYPE_MGMT 0x0000
217#define IEEE80211_FTYPE_CTL 0x0004
218#define IEEE80211_FTYPE_DATA 0x0008
219
220/* management */
221#define IEEE80211_STYPE_ASSOC_REQ 0x0000
222#define IEEE80211_STYPE_ASSOC_RESP 0x0010
223#define IEEE80211_STYPE_REASSOC_REQ 0x0020
224#define IEEE80211_STYPE_REASSOC_RESP 0x0030
225#define IEEE80211_STYPE_PROBE_REQ 0x0040
226#define IEEE80211_STYPE_PROBE_RESP 0x0050
227#define IEEE80211_STYPE_BEACON 0x0080
228#define IEEE80211_STYPE_ATIM 0x0090
229#define IEEE80211_STYPE_DISASSOC 0x00A0
230#define IEEE80211_STYPE_AUTH 0x00B0
231#define IEEE80211_STYPE_DEAUTH 0x00C0
232
233/* control */
234#define IEEE80211_STYPE_PSPOLL 0x00A0
235#define IEEE80211_STYPE_RTS 0x00B0
236#define IEEE80211_STYPE_CTS 0x00C0
237#define IEEE80211_STYPE_ACK 0x00D0
238#define IEEE80211_STYPE_CFEND 0x00E0
239#define IEEE80211_STYPE_CFENDACK 0x00F0
240
241/* data */
242#define IEEE80211_STYPE_DATA 0x0000
243#define IEEE80211_STYPE_DATA_CFACK 0x0010
244#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
245#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
246#define IEEE80211_STYPE_NULLFUNC 0x0040
247#define IEEE80211_STYPE_CFACK 0x0050
248#define IEEE80211_STYPE_CFPOLL 0x0060
249#define IEEE80211_STYPE_CFACKPOLL 0x0070
250#define IEEE80211_QOS_DATAGRP 0x0080
251
252#define IEEE80211_SCTL_FRAG 0x000F
253#define IEEE80211_SCTL_SEQ 0xFFF0
254
255/* QoS,QOS */
256#define NORMAL_ACK 0
257#define NO_ACK 1
258#define NON_EXPLICIT_ACK 2
259#define BLOCK_ACK 3
260
261#ifndef ETH_P_PAE
262#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
263#endif /* ETH_P_PAE */
264
265#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
266
267#define ETH_P_ECONET 0x0018
268
269#ifndef ETH_P_80211_RAW
270#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
271#endif
272
273/* IEEE 802.11 defines */
274
275#define P80211_OUI_LEN 3
276
277struct ieee80211_snap_hdr {
278 u8 dsap; /* always 0xAA */
279 u8 ssap; /* always 0xAA */
280 u8 ctrl; /* always 0x03 */
281 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
282} __packed;
283
284#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
285
286#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
287#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
288
289#define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
290
291#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
292#define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
293
294/* Authentication algorithms */
295#define WLAN_AUTH_OPEN 0
296#define WLAN_AUTH_SHARED_KEY 1
297
298#define WLAN_AUTH_CHALLENGE_LEN 128
299
300#define WLAN_CAPABILITY_BSS BIT(0)
301#define WLAN_CAPABILITY_IBSS BIT(1)
302#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
303#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
304#define WLAN_CAPABILITY_PRIVACY BIT(4)
305#define WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5)
306#define WLAN_CAPABILITY_PBCC BIT(6)
307#define WLAN_CAPABILITY_CHANNEL_AGILITY BIT(7)
308#define WLAN_CAPABILITY_SHORT_SLOT BIT(10)
309
310/* Information Element IDs */
311#define WLAN_EID_SSID 0
312#define WLAN_EID_SUPP_RATES 1
313#define WLAN_EID_FH_PARAMS 2
314#define WLAN_EID_DS_PARAMS 3
315#define WLAN_EID_CF_PARAMS 4
316#define WLAN_EID_TIM 5
317#define WLAN_EID_IBSS_PARAMS 6
318#define WLAN_EID_CHALLENGE 16
319#define WLAN_EID_RSN 48
320#define WLAN_EID_GENERIC 221
321
322#define IEEE80211_MGMT_HDR_LEN 24
323#define IEEE80211_DATA_HDR3_LEN 24
324#define IEEE80211_DATA_HDR4_LEN 30
325
326#define IEEE80211_STATMASK_SIGNAL BIT(0)
327#define IEEE80211_STATMASK_RSSI BIT(1)
328#define IEEE80211_STATMASK_NOISE BIT(2)
329#define IEEE80211_STATMASK_RATE BIT(3)
330#define IEEE80211_STATMASK_WEMASK 0x7
331
332#define IEEE80211_CCK_MODULATION BIT(0)
333#define IEEE80211_OFDM_MODULATION BIT(1)
334
335#define IEEE80211_24GHZ_BAND BIT(0)
336#define IEEE80211_52GHZ_BAND BIT(1)
337
338#define IEEE80211_CCK_RATE_LEN 4
339#define IEEE80211_NUM_OFDM_RATESLEN 8
340
341#define IEEE80211_CCK_RATE_1MB 0x02
342#define IEEE80211_CCK_RATE_2MB 0x04
343#define IEEE80211_CCK_RATE_5MB 0x0B
344#define IEEE80211_CCK_RATE_11MB 0x16
345#define IEEE80211_OFDM_RATE_LEN 8
346#define IEEE80211_OFDM_RATE_6MB 0x0C
347#define IEEE80211_OFDM_RATE_9MB 0x12
348#define IEEE80211_OFDM_RATE_12MB 0x18
349#define IEEE80211_OFDM_RATE_18MB 0x24
350#define IEEE80211_OFDM_RATE_24MB 0x30
351#define IEEE80211_OFDM_RATE_36MB 0x48
352#define IEEE80211_OFDM_RATE_48MB 0x60
353#define IEEE80211_OFDM_RATE_54MB 0x6C
354#define IEEE80211_BASIC_RATE_MASK 0x80
355
356#define IEEE80211_CCK_RATE_1MB_MASK BIT(0)
357#define IEEE80211_CCK_RATE_2MB_MASK BIT(1)
358#define IEEE80211_CCK_RATE_5MB_MASK BIT(2)
359#define IEEE80211_CCK_RATE_11MB_MASK BIT(3)
360#define IEEE80211_OFDM_RATE_6MB_MASK BIT(4)
361#define IEEE80211_OFDM_RATE_9MB_MASK BIT(5)
362#define IEEE80211_OFDM_RATE_12MB_MASK BIT(6)
363#define IEEE80211_OFDM_RATE_18MB_MASK BIT(7)
364#define IEEE80211_OFDM_RATE_24MB_MASK BIT(8)
365#define IEEE80211_OFDM_RATE_36MB_MASK BIT(9)
366#define IEEE80211_OFDM_RATE_48MB_MASK BIT(10)
367#define IEEE80211_OFDM_RATE_54MB_MASK BIT(11)
368
369#define IEEE80211_CCK_RATES_MASK 0x0000000F
370#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
371 IEEE80211_CCK_RATE_2MB_MASK)
372#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
373 IEEE80211_CCK_RATE_5MB_MASK | \
374 IEEE80211_CCK_RATE_11MB_MASK)
375
376#define IEEE80211_OFDM_RATES_MASK 0x00000FF0
377#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
378 IEEE80211_OFDM_RATE_12MB_MASK | \
379 IEEE80211_OFDM_RATE_24MB_MASK)
380#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
381 IEEE80211_OFDM_RATE_9MB_MASK | \
382 IEEE80211_OFDM_RATE_18MB_MASK | \
383 IEEE80211_OFDM_RATE_36MB_MASK | \
384 IEEE80211_OFDM_RATE_48MB_MASK | \
385 IEEE80211_OFDM_RATE_54MB_MASK)
386#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
387 IEEE80211_CCK_DEFAULT_RATES_MASK)
388
389#define IEEE80211_NUM_OFDM_RATES 8
390#define IEEE80211_NUM_CCK_RATES 4
391#define IEEE80211_OFDM_SHIFT_MASK_A 4
392
393/* NOTE: This data is for statistical purposes; not all hardware provides this
394 * information for frames received. Not setting these will not cause
395 * any adverse affects.
396 */
397struct ieee80211_rx_stats {
398 s8 rssi;
399 u8 signal;
400 u8 noise;
401 u8 received_channel;
402 u16 rate; /* in 100 kbps */
403 u8 mask;
404 u8 freq;
405 u16 len;
406};
407
408/* IEEE 802.11 requires that STA supports concurrent reception of at least
409 * three fragmented frames. This define can be increased to support more
410 * concurrent frames, but it should be noted that each entry can consume about
411 * 2 kB of RAM and increasing cache size will slow down frame reassembly.
412 */
413#define IEEE80211_FRAG_CACHE_LEN 4
414
415struct ieee80211_frag_entry {
416 u32 first_frag_time;
417 uint seq;
418 uint last_frag;
419 uint qos; /*jackson*/
420 uint tid; /*jackson*/
421 struct sk_buff *skb;
422 u8 src_addr[ETH_ALEN];
423 u8 dst_addr[ETH_ALEN];
424};
425
426struct ieee80211_stats {
427 uint tx_unicast_frames;
428 uint tx_multicast_frames;
429 uint tx_fragments;
430 uint tx_unicast_octets;
431 uint tx_multicast_octets;
432 uint tx_deferred_transmissions;
433 uint tx_single_retry_frames;
434 uint tx_multiple_retry_frames;
435 uint tx_retry_limit_exceeded;
436 uint tx_discards;
437 uint rx_unicast_frames;
438 uint rx_multicast_frames;
439 uint rx_fragments;
440 uint rx_unicast_octets;
441 uint rx_multicast_octets;
442 uint rx_fcs_errors;
443 uint rx_discards_no_buffer;
444 uint tx_discards_wrong_sa;
445 uint rx_discards_undecryptable;
446 uint rx_message_in_msg_fragments;
447 uint rx_message_in_bad_msg_fragments;
448};
449
450struct ieee80211_softmac_stats {
451 uint rx_ass_ok;
452 uint rx_ass_err;
453 uint rx_probe_rq;
454 uint tx_probe_rs;
455 uint tx_beacons;
456 uint rx_auth_rq;
457 uint rx_auth_rs_ok;
458 uint rx_auth_rs_err;
459 uint tx_auth_rq;
460 uint no_auth_rs;
461 uint no_ass_rs;
462 uint tx_ass_rq;
463 uint rx_ass_rq;
464 uint tx_probe_rq;
465 uint reassoc;
466 uint swtxstop;
467 uint swtxawake;
468};
469
470#define SEC_KEY_1 BIT(0)
471#define SEC_KEY_2 BIT(1)
472#define SEC_KEY_3 BIT(2)
473#define SEC_KEY_4 BIT(3)
474#define SEC_ACTIVE_KEY BIT(4)
475#define SEC_AUTH_MODE BIT(5)
476#define SEC_UNICAST_GROUP BIT(6)
477#define SEC_LEVEL BIT(7)
478#define SEC_ENABLED BIT(8)
479
480#define SEC_LEVEL_0 0 /* None */
481#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
482#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
483#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
484#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
485
486#define WEP_KEYS 4
487#define WEP_KEY_LEN 13
488
489struct ieee80211_security {
490 u16 active_key:2,
491 enabled:1,
492 auth_mode:2,
493 auth_algo:4,
494 unicast_uses_group:1;
495 u8 key_sizes[WEP_KEYS];
496 u8 keys[WEP_KEYS][WEP_KEY_LEN];
497 u8 level;
498 u16 flags;
499} __packed;
500
501/*
502 *
503 * 802.11 data frame from AP
504 *
505 * ,-------------------------------------------------------------------.
506 * Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
507 * |------|------|---------|---------|---------|------|---------|------|
508 * Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
509 * | | tion | (BSSID) | | | ence | data | |
510 * `-------------------------------------------------------------------'
511 *
512 * Total: 28-2340 bytes
513 *
514 */
515
516struct ieee80211_header_data {
517 u16 frame_ctl;
518 u16 duration_id;
519 u8 addr1[6];
520 u8 addr2[6];
521 u8 addr3[6];
522 u16 seq_ctrl;
523};
524
525#define BEACON_PROBE_SSID_ID_POSITION 12
526
527/* Management Frame Information Element Types */
528#define MFIE_TYPE_SSID 0
529#define MFIE_TYPE_RATES 1
530#define MFIE_TYPE_FH_SET 2
531#define MFIE_TYPE_DS_SET 3
532#define MFIE_TYPE_CF_SET 4
533#define MFIE_TYPE_TIM 5
534#define MFIE_TYPE_IBSS_SET 6
535#define MFIE_TYPE_CHALLENGE 16
536#define MFIE_TYPE_ERP 42
537#define MFIE_TYPE_RSN 48
538#define MFIE_TYPE_RATES_EX 50
539#define MFIE_TYPE_GENERIC 221
540
541struct ieee80211_info_element_hdr {
542 u8 id;
543 u8 len;
544} __packed;
545
546struct ieee80211_info_element {
547 u8 id;
548 u8 len;
549 u8 data[0];
550} __packed;
551
552/*
553 * These are the data types that can make up management packets
554 *
555 u16 auth_algorithm;
556 u16 auth_sequence;
557 u16 beacon_interval;
558 u16 capability;
559 u8 current_ap[ETH_ALEN];
560 u16 listen_interval;
561 struct {
562 u16 association_id:14, reserved:2;
563 } __packed;
564 u32 time_stamp[2];
565 u16 reason;
566 u16 status;
567*/
568
569#define IEEE80211_DEFAULT_TX_ESSID "Penguin"
570#define IEEE80211_DEFAULT_BASIC_RATE 10
571
572struct ieee80211_authentication {
573 struct ieee80211_header_data header;
574 u16 algorithm;
575 u16 transaction;
576 u16 status;
577} __packed;
578
579struct ieee80211_probe_response {
580 struct ieee80211_header_data header;
581 u32 time_stamp[2];
582 u16 beacon_interval;
583 u16 capability;
584 struct ieee80211_info_element info_element;
585} __packed;
586
587struct ieee80211_probe_request {
588 struct ieee80211_header_data header;
589} __packed;
590
591struct ieee80211_assoc_request_frame {
592 struct ieee80211_hdr_3addr header;
593 u16 capability;
594 u16 listen_interval;
595 struct ieee80211_info_element_hdr info_element;
596} __packed;
597
598struct ieee80211_assoc_response_frame {
599 struct ieee80211_hdr_3addr header;
600 u16 capability;
601 u16 status;
602 u16 aid;
603} __packed;
604
605struct ieee80211_txb {
606 u8 nr_frags;
607 u8 encrypted;
608 u16 reserved;
609 u16 frag_size;
610 u16 payload_size;
611 struct sk_buff *fragments[0];
612};
613
614/* SWEEP TABLE ENTRIES NUMBER*/
615#define MAX_SWEEP_TAB_ENTRIES 42
616#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
617/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
618 * only use 8, and then use extended rates for the remaining supported
619 * rates. Other APs, however, stick all of their supported rates on the
620 * main rates information element...
621 */
622#define MAX_RATES_LENGTH ((u8)12)
623#define MAX_RATES_EX_LENGTH ((u8)16)
624#define MAX_NETWORK_COUNT 128
625#define MAX_CHANNEL_NUMBER 161
626#define IEEE80211_SOFTMAC_SCAN_TIME 400
627/*(HZ / 2)*/
628#define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
629
630#define CRC_LENGTH 4U
631
632#define MAX_WPA_IE_LEN 128
633
634#define NETWORK_EMPTY_ESSID BIT(0)
635#define NETWORK_HAS_OFDM BIT(1)
636#define NETWORK_HAS_CCK BIT(2)
637
638#define IEEE80211_DTIM_MBCAST 4
639#define IEEE80211_DTIM_UCAST 2
640#define IEEE80211_DTIM_VALID 1
641#define IEEE80211_DTIM_INVALID 0
642
643#define IEEE80211_PS_DISABLED 0
644#define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
645#define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST
646#define IW_ESSID_MAX_SIZE 32
647/*
648 * join_res:
649 * -1: authentication fail
650 * -2: association fail
651 * > 0: TID
652 */
653
654enum ieee80211_state {
655 /* the card is not linked at all */
656 IEEE80211_NOLINK = 0,
657 /* IEEE80211_ASSOCIATING* are for BSS client mode
658 * the driver shall not perform RX filtering unless
659 * the state is LINKED.
660 * The driver shall just check for the state LINKED and
661 * defaults to NOLINK for ALL the other states (including
662 * LINKED_SCANNING)
663 */
664 /* the association procedure will start (wq scheduling)*/
665 IEEE80211_ASSOCIATING,
666 IEEE80211_ASSOCIATING_RETRY,
667 /* the association procedure is sending AUTH request*/
668 IEEE80211_ASSOCIATING_AUTHENTICATING,
669 /* the association procedure has successfully authenticated
670 * and is sending association request
671 */
672 IEEE80211_ASSOCIATING_AUTHENTICATED,
673 /* the link is ok. the card associated to a BSS or linked
674 * to a ibss cell or acting as an AP and creating the bss
675 */
676 IEEE80211_LINKED,
677 /* same as LINKED, but the driver shall apply RX filter
678 * rules as we are in NO_LINK mode. As the card is still
679 * logically linked, but it is doing a syncro site survey
680 * then it will be back to LINKED state.
681 */
682 IEEE80211_LINKED_SCANNING,
683};
684
685#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
686#define DEFAULT_FTS 2346
687
688#define CFG_IEEE80211_RESERVE_FCS BIT(0)
689#define CFG_IEEE80211_COMPUTE_FCS BIT(1)
690
691#define MAXTID 16
692
693#define IEEE_A BIT(0)
694#define IEEE_B BIT(1)
695#define IEEE_G BIT(2)
696#define IEEE_MODE_MASK (IEEE_A | IEEE_B | IEEE_G)
697
698static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
699{
700 /* Single white space is for Linksys APs */
701 if (essid_len == 1 && essid[0] == ' ')
702 return 1;
703 /* Otherwise, if the entire essid is 0, we assume it is hidden */
704 while (essid_len) {
705 essid_len--;
706 if (essid[essid_len] != '\0')
707 return 0;
708 }
709 return 1;
710}
711
712static inline int ieee80211_get_hdrlen(u16 fc)
713{
714 int hdrlen = 24;
715
716 switch (WLAN_FC_GET_TYPE(fc)) {
717 case IEEE80211_FTYPE_DATA:
718 if (fc & IEEE80211_QOS_DATAGRP)
719 hdrlen += 2;
720 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
721 hdrlen += 6; /* Addr4 */
722 break;
723 case IEEE80211_FTYPE_CTL:
724 switch (WLAN_FC_GET_STYPE(fc)) {
725 case IEEE80211_STYPE_CTS:
726 case IEEE80211_STYPE_ACK:
727 hdrlen = 10;
728 break;
729 default:
730 hdrlen = 16;
731 break;
732 }
733 break;
734 }
735 return hdrlen;
736}
737
738struct registry_priv;
739
740u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
741u8 *r8712_get_ie(u8 *pbuf, sint index, sint *len, sint limit);
742unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *rsn_ie_len, int limit);
743unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len,
744 int limit);
745int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
746 int *pairwise_cipher);
747int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
748 int *pairwise_cipher);
749int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
750 u8 *wpa_ie, u16 *wpa_len);
751int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
752int r8712_generate_ie(struct registry_priv *pregistrypriv);
753uint r8712_is_cckrates_included(u8 *rate);
754uint r8712_is_cckratesonly_included(u8 *rate);
755
756#endif /* IEEE80211_H */
757
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 <linux/ieee80211.h>
18
19#define IEEE_CMD_SET_WPA_PARAM 1
20#define IEEE_CMD_SET_WPA_IE 2
21#define IEEE_CMD_SET_ENCRYPTION 3
22#define IEEE_CMD_MLME 4
23
24#define IEEE_PARAM_WPA_ENABLED 1
25#define IEEE_PARAM_TKIP_COUNTERMEASURES 2
26#define IEEE_PARAM_DROP_UNENCRYPTED 3
27#define IEEE_PARAM_PRIVACY_INVOKED 4
28#define IEEE_PARAM_AUTH_ALGS 5
29#define IEEE_PARAM_IEEE_802_1X 6
30#define IEEE_PARAM_WPAX_SELECT 7
31
32#define AUTH_ALG_OPEN_SYSTEM 0x1
33#define AUTH_ALG_SHARED_KEY 0x2
34#define AUTH_ALG_LEAP 0x00000004
35
36#define IEEE_MLME_STA_DEAUTH 1
37#define IEEE_MLME_STA_DISASSOC 2
38
39#define IEEE_CRYPT_ERR_UNKNOWN_ALG 2
40#define IEEE_CRYPT_ERR_UNKNOWN_ADDR 3
41#define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED 4
42#define IEEE_CRYPT_ERR_KEY_SET_FAILED 5
43#define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED 6
44#define IEEE_CRYPT_ERR_CARD_CONF_FAILED 7
45
46#define IEEE_CRYPT_ALG_NAME_LEN 16
47
48#define WPA_CIPHER_NONE BIT(0)
49#define WPA_CIPHER_WEP40 BIT(1)
50#define WPA_CIPHER_WEP104 BIT(2)
51#define WPA_CIPHER_TKIP BIT(3)
52#define WPA_CIPHER_CCMP BIT(4)
53
54#define WPA_SELECTOR_LEN 4
55#define RSN_HEADER_LEN 4
56
57#define RSN_SELECTOR_LEN 4
58
59enum NETWORK_TYPE {
60 WIRELESS_INVALID = 0,
61 WIRELESS_11B = 1,
62 WIRELESS_11G = 2,
63 WIRELESS_11BG = (WIRELESS_11B | WIRELESS_11G),
64 WIRELESS_11A = 4,
65 WIRELESS_11N = 8,
66 WIRELESS_11GN = (WIRELESS_11G | WIRELESS_11N),
67 WIRELESS_11BGN = (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
68};
69
70struct ieee_param {
71 u32 cmd;
72 u8 sta_addr[ETH_ALEN];
73 union {
74 struct {
75 u8 name;
76 u32 value;
77 } wpa_param;
78 struct {
79 u32 len;
80 u8 reserved[32];
81 u8 data[0];
82 } wpa_ie;
83 struct {
84 int command;
85 int reason_code;
86 } mlme;
87 struct {
88 u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
89 u8 set_tx;
90 u32 err;
91 u8 idx;
92 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
93 u16 key_len;
94 u8 key[0];
95 } crypt;
96 } u;
97};
98
99#define MIN_FRAG_THRESHOLD 256U
100#define MAX_FRAG_THRESHOLD 2346U
101
102/* QoS,QOS */
103#define NORMAL_ACK 0
104
105/* IEEE 802.11 defines */
106
107#define P80211_OUI_LEN 3
108
109struct ieee80211_snap_hdr {
110 u8 dsap; /* always 0xAA */
111 u8 ssap; /* always 0xAA */
112 u8 ctrl; /* always 0x03 */
113 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
114} __packed;
115
116#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
117
118#define IEEE80211_CCK_RATE_LEN 4
119#define IEEE80211_NUM_OFDM_RATESLEN 8
120
121#define IEEE80211_CCK_RATE_1MB 0x02
122#define IEEE80211_CCK_RATE_2MB 0x04
123#define IEEE80211_CCK_RATE_5MB 0x0B
124#define IEEE80211_CCK_RATE_11MB 0x16
125#define IEEE80211_OFDM_RATE_6MB 0x0C
126#define IEEE80211_OFDM_RATE_9MB 0x12
127#define IEEE80211_OFDM_RATE_12MB 0x18
128#define IEEE80211_OFDM_RATE_18MB 0x24
129#define IEEE80211_OFDM_RATE_24MB 0x30
130#define IEEE80211_OFDM_RATE_36MB 0x48
131#define IEEE80211_OFDM_RATE_48MB 0x60
132#define IEEE80211_OFDM_RATE_54MB 0x6C
133#define IEEE80211_BASIC_RATE_MASK 0x80
134
135#define WEP_KEYS 4
136
137/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
138 * only use 8, and then use extended rates for the remaining supported
139 * rates. Other APs, however, stick all of their supported rates on the
140 * main rates information element...
141 */
142#define MAX_RATES_LENGTH ((u8)12)
143#define MAX_WPA_IE_LEN 128
144
145struct registry_priv;
146
147u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
148u8 *r8712_get_ie(u8 *pbuf, sint index, uint *len, sint limit);
149unsigned char *r8712_get_wpa_ie(unsigned char *pie, uint *rsn_ie_len,
150 int limit);
151unsigned char *r8712_get_wpa2_ie(unsigned char *pie, uint *rsn_ie_len,
152 int limit);
153int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
154 int *pairwise_cipher);
155int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
156 int *pairwise_cipher);
157int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
158 u8 *wpa_ie, u16 *wpa_len);
159int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
160int r8712_generate_ie(struct registry_priv *pregistrypriv);
161uint r8712_is_cckrates_included(u8 *rate);
162uint r8712_is_cckratesonly_included(u8 *rate);
163
164#endif /* IEEE80211_H */
165