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Jiri Bencf0706e82007-05-05 11:45:53 -07001/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
Jouni Malinen026331c2010-02-15 12:53:10 +02005 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
Jiri Bencf0706e82007-05-05 11:45:53 -07006 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef IEEE80211_I_H
13#define IEEE80211_I_H
14
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <linux/if_ether.h>
18#include <linux/interrupt.h>
19#include <linux/list.h>
20#include <linux/netdevice.h>
21#include <linux/skbuff.h>
22#include <linux/workqueue.h>
23#include <linux/types.h>
24#include <linux/spinlock.h>
Johannes Berg571ecf62007-07-27 15:43:22 +020025#include <linux/etherdevice.h>
Johannes Berge1e54062010-11-30 08:58:45 +010026#include <linux/leds.h>
Johannes Berga729cff2011-11-06 14:13:34 +010027#include <linux/idr.h>
Johannes Bergfe7a5d52009-11-18 18:42:47 +010028#include <net/ieee80211_radiotap.h>
colin@cozybit.com93da9cc2008-10-21 12:03:48 -070029#include <net/cfg80211.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070030#include <net/mac80211.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040031#include "key.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070032#include "sta_info.h"
33
Johannes Berg9cfb0002008-04-03 15:17:31 +020034struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070035
36/* Maximum number of broadcast/multicast frames to buffer when some of the
37 * associated stations are using power saving. */
38#define AP_MAX_BC_BUFFER 128
39
40/* Maximum number of frames buffered to all STAs, including multicast frames.
41 * Note: increasing this limit increases the potential memory requirement. Each
42 * frame can be up to about 2 kB long. */
43#define TOTAL_MAX_TX_BUFFER 512
44
45/* Required encryption head and tailroom */
46#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020047#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070048
49/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
50 * reception of at least three fragmented frames. This limit can be increased
51 * by changing this define, at the cost of slower frame reassembly and
52 * increased memory use (about 2 kB of RAM per entry). */
53#define IEEE80211_FRAGMENT_MAX 4
54
Felix Fietkau12d3952f2012-03-18 22:58:06 +010055#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
56#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
Johannes Berg20ad19d2009-02-10 21:25:45 +010057
Kalle Valoab133152010-01-12 10:42:31 +020058#define IEEE80211_DEFAULT_UAPSD_QUEUES \
59 (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
60 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
61 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
62 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
63
64#define IEEE80211_DEFAULT_MAX_SP_LEN \
65 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
66
Jiri Bencf0706e82007-05-05 11:45:53 -070067struct ieee80211_fragment_entry {
68 unsigned long first_frag_time;
69 unsigned int seq;
70 unsigned int rx_queue;
71 unsigned int last_frag;
72 unsigned int extra_len;
73 struct sk_buff_head skb_list;
74 int ccmp; /* Whether fragments were encrypted with CCMP */
75 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
76};
77
78
Johannes Bergc2b13452008-09-11 00:01:55 +020079struct ieee80211_bss {
Johannes Berg00d3f142009-02-10 21:26:00 +010080 /* don't want to look up all the time */
Johannes Berg056cdd52008-03-26 23:21:47 +010081 size_t ssid_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070082 u8 ssid[IEEE80211_MAX_SSID_LEN];
Johannes Berg00d3f142009-02-10 21:26:00 +010083
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080084 u8 dtim_period;
Johannes Berg00d3f142009-02-10 21:26:00 +010085
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030086 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020087 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010088
89 unsigned long last_probe_resp;
90
Luis Carlos Coboee385852008-02-23 15:17:11 +010091#ifdef CONFIG_MAC80211_MESH
92 u8 *mesh_id;
93 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040094 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010095#endif
Johannes Berg00d3f142009-02-10 21:26:00 +010096
Jiri Bencf0706e82007-05-05 11:45:53 -070097#define IEEE80211_MAX_SUPP_RATES 32
98 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
99 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700100
Johannes Berg00d3f142009-02-10 21:26:00 +0100101 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300102 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200103 * that we can feed ERP info to the driver when handling the
104 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100105 * otherwise, you probably don't want to use them.
106 */
107 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200108 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800109
110 /* Keep track of the corruption of the last beacon/probe response. */
111 u8 corrupt_data;
112
113 /* Keep track of what bits of information we have valid info for. */
114 u8 valid_data;
115};
116
117/**
118 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
119 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
120 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
121 *
122 * These are bss flags that are attached to a bss in the
123 * @corrupt_data field of &struct ieee80211_bss.
124 */
125enum ieee80211_bss_corrupt_data_flags {
126 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
127 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
128};
129
130/**
131 * enum ieee80211_valid_data_flags - BSS valid data flags
132 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
133 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
134 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
135 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
136 *
137 * These are bss flags that are attached to a bss in the
138 * @valid_data field of &struct ieee80211_bss. They show which parts
139 * of the data structure were recieved as a result of an un-corrupted
140 * beacon/probe response.
141 */
142enum ieee80211_bss_valid_data_flags {
143 IEEE80211_BSS_VALID_DTIM = BIT(0),
144 IEEE80211_BSS_VALID_WMM = BIT(1),
145 IEEE80211_BSS_VALID_RATES = BIT(2),
146 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700147};
148
Johannes Bergc2b13452008-09-11 00:01:55 +0200149static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100150{
151#ifdef CONFIG_MAC80211_MESH
152 return bss->mesh_cfg;
153#endif
154 return NULL;
155}
156
Johannes Bergc2b13452008-09-11 00:01:55 +0200157static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100158{
159#ifdef CONFIG_MAC80211_MESH
160 return bss->mesh_id;
161#endif
162 return NULL;
163}
164
Johannes Bergc2b13452008-09-11 00:01:55 +0200165static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100166{
167#ifdef CONFIG_MAC80211_MESH
168 return bss->mesh_id_len;
169#endif
170 return 0;
171}
172
Jiri Bencf0706e82007-05-05 11:45:53 -0700173
Johannes Berg9ae54c82008-01-31 19:48:20 +0100174typedef unsigned __bitwise__ ieee80211_tx_result;
175#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
176#define TX_DROP ((__force ieee80211_tx_result) 1u)
177#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
178
Johannes Berg5cf121c2008-02-25 16:27:43 +0100179#define IEEE80211_TX_UNICAST BIT(1)
180#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100181
Johannes Berg5cf121c2008-02-25 16:27:43 +0100182struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700183 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100184 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700185 struct ieee80211_local *local;
186 struct ieee80211_sub_if_data *sdata;
187 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700188 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700189
Johannes Berg5cf121c2008-02-25 16:27:43 +0100190 struct ieee80211_channel *channel;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100191
Johannes Berg056cdd52008-03-26 23:21:47 +0100192 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100193};
194
195
196typedef unsigned __bitwise__ ieee80211_rx_result;
197#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
198#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
199#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
200#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
201
Johannes Berg554891e2010-09-24 12:38:25 +0200202/**
203 * enum ieee80211_packet_rx_flags - packet RX flags
204 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
205 * (incl. multicast frames)
206 * @IEEE80211_RX_IN_SCAN: received while scanning
207 * @IEEE80211_RX_FRAGMENTED: fragmented frame
208 * @IEEE80211_RX_AMSDU: a-MSDU packet
209 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100210 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200211 *
212 * These are per-frame flags that are attached to a frame in the
213 * @rx_flags field of &struct ieee80211_rx_status.
214 */
215enum ieee80211_packet_rx_flags {
216 IEEE80211_RX_IN_SCAN = BIT(0),
217 IEEE80211_RX_RA_MATCH = BIT(1),
218 IEEE80211_RX_FRAGMENTED = BIT(2),
219 IEEE80211_RX_AMSDU = BIT(3),
220 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100221 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200222};
223
224/**
225 * enum ieee80211_rx_flags - RX data flags
226 *
227 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100228 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
229 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200230 *
231 * These flags are used across handling multiple interfaces
232 * for a single frame.
233 */
234enum ieee80211_rx_flags {
235 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100236 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200237};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100238
239struct ieee80211_rx_data {
240 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100241 struct ieee80211_local *local;
242 struct ieee80211_sub_if_data *sdata;
243 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100244 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100245
Johannes Berg056cdd52008-03-26 23:21:47 +0100246 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200247
248 /*
249 * Index into sequence numbers array, 0..16
250 * since the last (16) is used for non-QoS,
251 * will be 16 on non-QoS frames.
252 */
253 int seqno_idx;
254
255 /*
256 * Index into the security IV/PN arrays, 0..16
257 * since the last (16) is used for CCMP-encrypted
258 * management frames, will be set to 16 on mgmt
259 * frames and 0 on non-QoS frames.
260 */
261 int security_idx;
262
Johannes Berg5cf121c2008-02-25 16:27:43 +0100263 u32 tkip_iv32;
264 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700265};
266
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100267struct beacon_data {
268 u8 *head, *tail;
269 int head_len, tail_len;
Johannes Berg88600202012-02-13 15:17:18 +0100270 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100271};
272
Jiri Bencf0706e82007-05-05 11:45:53 -0700273struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200274 struct beacon_data __rcu *beacon;
Arik Nemtsov02945822011-11-10 11:28:57 +0200275 struct sk_buff __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700276
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400277 struct list_head vlans;
278
Jiri Bencf0706e82007-05-05 11:45:53 -0700279 /* yes, this looks ugly, but guarantees that we can later use
280 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100281 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e82007-05-05 11:45:53 -0700282 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e82007-05-05 11:45:53 -0700283 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100284 atomic_t num_sta_ps; /* number of stations in PS mode */
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200285 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100286 int dtim_count;
Christian Lamparter512119b2011-01-31 20:48:44 +0200287 bool dtim_bc_mc;
Jiri Bencf0706e82007-05-05 11:45:53 -0700288};
289
290struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700291 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100292 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700293};
294
295struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400296 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100297
298 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200299 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700300};
301
Luis Carlos Coboee385852008-02-23 15:17:11 +0100302struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700303 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
304 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
305 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100306 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
307 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700308 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100309 atomic_t estab_plinks;
310};
311
312#define PREQ_Q_F_START 0x1
313#define PREQ_Q_F_REFRESH 0x2
314struct mesh_preq_queue {
315 struct list_head list;
316 u8 dst[ETH_ALEN];
317 u8 flags;
318};
319
Johannes Bergf679f652009-12-23 13:15:34 +0100320enum ieee80211_work_type {
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100321 IEEE80211_WORK_ABORT,
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100322 IEEE80211_WORK_REMAIN_ON_CHANNEL,
Johannes Bergf30221e2010-11-25 10:02:30 +0100323 IEEE80211_WORK_OFFCHANNEL_TX,
Johannes Berg77fdaa12009-07-07 03:45:17 +0200324};
325
Johannes Bergaf6b6372009-12-23 13:15:35 +0100326/**
327 * enum work_done_result - indicates what to do after work was done
328 *
329 * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
330 * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
331 * should be requeued.
332 */
333enum work_done_result {
334 WORK_DONE_DESTROY,
335 WORK_DONE_REQUEUE,
336};
337
Johannes Bergf679f652009-12-23 13:15:34 +0100338struct ieee80211_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200339 struct list_head list;
Johannes Bergf679f652009-12-23 13:15:34 +0100340
Johannes Bergaf6b6372009-12-23 13:15:35 +0100341 struct rcu_head rcu_head;
342
343 struct ieee80211_sub_if_data *sdata;
344
345 enum work_done_result (*done)(struct ieee80211_work *wk,
346 struct sk_buff *skb);
347
Johannes Bergf679f652009-12-23 13:15:34 +0100348 struct ieee80211_channel *chan;
Johannes Berge4da8c32009-12-23 13:15:43 +0100349 enum nl80211_channel_type chan_type;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100350
Johannes Berg77fdaa12009-07-07 03:45:17 +0200351 unsigned long timeout;
Johannes Bergf679f652009-12-23 13:15:34 +0100352 enum ieee80211_work_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200353
Johannes Berge4da8c32009-12-23 13:15:43 +0100354 bool started;
355
Johannes Bergf679f652009-12-23 13:15:34 +0100356 union {
357 struct {
Johannes Berge4da8c32009-12-23 13:15:43 +0100358 u32 duration;
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100359 } remain;
Johannes Bergf30221e2010-11-25 10:02:30 +0100360 struct {
361 struct sk_buff *frame;
362 u32 wait;
Johannes Berg28a1bcd2011-10-04 18:27:10 +0200363 bool status;
Johannes Bergf30221e2010-11-25 10:02:30 +0100364 } offchan_tx;
Johannes Bergf679f652009-12-23 13:15:34 +0100365 };
Johannes Berg77fdaa12009-07-07 03:45:17 +0200366
Johannes Berg66e67e42012-01-20 13:55:27 +0100367 size_t data_len;
368 u8 data[];
Johannes Berg77fdaa12009-07-07 03:45:17 +0200369};
370
Johannes Berg46900292009-02-15 12:44:28 +0100371/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200372enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200373 IEEE80211_STA_BEACON_POLL = BIT(0),
374 IEEE80211_STA_CONNECTION_POLL = BIT(1),
375 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Bergb291ba12009-07-10 15:29:03 +0200376 IEEE80211_STA_DISABLE_11N = BIT(4),
377 IEEE80211_STA_CSA_RECEIVED = BIT(5),
378 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200379 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530380 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700381 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200382 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Johannes Bergab1faea2009-07-01 21:41:17 +0200383};
384
Johannes Berg66e67e42012-01-20 13:55:27 +0100385struct ieee80211_mgd_auth_data {
386 struct cfg80211_bss *bss;
387 unsigned long timeout;
388 int tries;
389 u16 algorithm, expected_transaction;
390
391 u8 key[WLAN_KEY_LEN_WEP104];
392 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100393 bool done;
394
395 size_t ie_len;
396 u8 ie[];
397};
398
399struct ieee80211_mgd_assoc_data {
400 struct cfg80211_bss *bss;
401 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100402
403 unsigned long timeout;
404 int tries;
405
406 u16 capability;
407 u8 prev_bssid[ETH_ALEN];
408 u8 ssid[IEEE80211_MAX_SSID_LEN];
409 u8 ssid_len;
410 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100411 bool wmm, uapsd;
Johannes Berg66e67e42012-01-20 13:55:27 +0100412 bool have_beacon;
413 bool sent_assoc;
414 bool synced;
415
Johannes Berg9dde6422012-05-16 23:43:19 +0200416 u8 ap_ht_param;
417
Johannes Berg66e67e42012-01-20 13:55:27 +0100418 size_t ie_len;
419 u8 ie[];
420};
421
Johannes Berg46900292009-02-15 12:44:28 +0100422struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100423 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200424 struct timer_list conn_mon_timer;
425 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530426 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200427 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530428 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200429 struct work_struct beacon_connection_loss_work;
Johannes Berg46900292009-02-15 12:44:28 +0100430
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100431 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200432 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300433 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100434 bool nullfunc_failed;
Johannes Bergb291ba12009-07-10 15:29:03 +0200435
Johannes Berg77fdaa12009-07-07 03:45:17 +0200436 struct mutex mtx;
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100437 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100438 struct ieee80211_mgd_auth_data *auth_data;
439 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100440
Johannes Berg77fdaa12009-07-07 03:45:17 +0200441 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100442
Jiri Bencf0706e82007-05-05 11:45:53 -0700443 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700444
Johannes Berg5bb644a2009-05-17 11:40:42 +0200445 unsigned long timers_running; /* used for quiesce/restart */
Johannes Berg965beda2009-04-16 13:17:24 +0200446 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200447 bool broken_ap; /* AP is broken -- turn off powersave */
Johannes Berg0f782312009-12-01 13:37:02 +0100448 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200449 ap_smps, /* smps mode AP thinks we're in */
450 driver_smps_mode; /* smps mode request */
451
452 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200453
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400454 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700455
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300456 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200457 u32 beacon_crc;
458
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200459 enum {
460 IEEE80211_MFP_DISABLED,
461 IEEE80211_MFP_OPTIONAL,
462 IEEE80211_MFP_REQUIRED
463 } mfp; /* management frame protection */
464
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200465 /*
466 * Bitmask of enabled u-apsd queues,
467 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
468 * to take effect.
469 */
470 unsigned int uapsd_queues;
471
472 /*
473 * Maximum number of buffered frames AP can deliver during a
474 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
475 * Needs a new association to take effect.
476 */
477 unsigned int uapsd_max_sp_len;
478
Jiri Bencf0706e82007-05-05 11:45:53 -0700479 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100480
481 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700482
483 /* Signal strength from the last Beacon frame in the current BSS. */
484 int last_beacon_signal;
485
486 /*
487 * Weighted average of the signal strength from Beacon frames in the
488 * current BSS. This is in units of 1/16 of the signal unit to maintain
489 * accuracy and to speed up calculations, i.e., the value need to be
490 * divided by 16 to get the actual value.
491 */
492 int ave_beacon_signal;
493
494 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300495 * Number of Beacon frames used in ave_beacon_signal. This can be used
496 * to avoid generating less reliable cqm events that would be based
497 * only on couple of received frames.
498 */
499 unsigned int count_beacon_signal;
500
501 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700502 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
503 * that triggered a cqm event. 0 indicates that no event has been
504 * generated for the current association.
505 */
506 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700507
508 /*
509 * State variables for keeping track of RSSI of the AP currently
510 * connected to and informing driver when RSSI has gone
511 * below/above a certain threshold.
512 */
513 int rssi_min_thold, rssi_max_thold;
514 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800515
516 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
517 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700518};
519
Johannes Berg46900292009-02-15 12:44:28 +0100520struct ieee80211_if_ibss {
521 struct timer_list timer;
Johannes Berg46900292009-02-15 12:44:28 +0100522
Johannes Berg7a17a332010-07-21 11:30:27 +0200523 struct mutex mtx;
524
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200525 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200526
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300527 u32 basic_rates;
528
Johannes Berg5bb644a2009-05-17 11:40:42 +0200529 bool timer_running;
530
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200531 bool fixed_bssid;
532 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200533 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100534
Antonio Quartulli267335d2012-01-31 20:25:47 +0100535 bool control_port;
536
Felix Fietkau4d196e42012-03-01 11:23:37 +0100537 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200538 u8 ssid[IEEE80211_MAX_SSID_LEN];
539 u8 ssid_len, ie_len;
540 u8 *ie;
541 struct ieee80211_channel *channel;
Alexander Simon13c40c52011-11-30 16:56:34 +0100542 enum nl80211_channel_type channel_type;
Johannes Berg46900292009-02-15 12:44:28 +0100543
544 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200545 /* probe response/beacon for IBSS */
Johannes Berg40b275b2011-05-13 14:15:49 +0200546 struct sk_buff __rcu *presp;
547 struct sk_buff *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100548
Johannes Berg8bf11d82011-12-15 11:17:37 +0100549 spinlock_t incomplete_lock;
550 struct list_head incomplete_stations;
551
Johannes Berg46900292009-02-15 12:44:28 +0100552 enum {
553 IEEE80211_IBSS_MLME_SEARCH,
554 IEEE80211_IBSS_MLME_JOINED,
555 } state;
556};
557
Javier Cardonadbf498f2012-03-31 11:31:32 -0700558/**
559 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
560 *
561 * these declarations define the interface, which enables
562 * vendor-specific mesh synchronization
563 *
564 */
565struct ieee802_11_elems;
566struct ieee80211_mesh_sync_ops {
567 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
568 u16 stype,
569 struct ieee80211_mgmt *mgmt,
570 struct ieee802_11_elems *elems,
571 struct ieee80211_rx_status *rx_status);
572 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
573 /* add other framework functions here */
574};
575
Johannes Berg472dbc42008-09-11 00:01:49 +0200576struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200577 struct timer_list housekeeping_timer;
578 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000579 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200580
Johannes Berg5bb644a2009-05-17 11:40:42 +0200581 unsigned long timers_running;
582
Javier Cardona18889232009-08-10 12:15:52 -0700583 unsigned long wrkq_flags;
Johannes Berg472dbc42008-09-11 00:01:49 +0200584
585 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
586 size_t mesh_id_len;
587 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000588 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200589 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000590 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200591 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000592 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700593 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000594 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700595 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000596 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000597 /* Local mesh Sequence Number */
598 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200599 /* Last used PREQ ID */
600 u32 preq_id;
601 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000602 /* Timestamp of last SN update */
603 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800604 /* Time when it's ok to send next PERR */
605 unsigned long next_perr;
606 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200607 unsigned long last_preq;
608 struct mesh_rmc *rmc;
609 spinlock_t mesh_preq_queue_lock;
610 struct mesh_preq_queue preq_queue;
611 int preq_queue_len;
612 struct mesh_stats mshstats;
613 struct mesh_config mshcfg;
614 u32 mesh_seqnum;
615 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700616 int num_gates;
Javier Cardona581a8b02011-04-07 15:08:27 -0700617 const u8 *ie;
618 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700619 enum {
620 IEEE80211_MESH_SEC_NONE = 0x0,
621 IEEE80211_MESH_SEC_AUTHED = 0x1,
622 IEEE80211_MESH_SEC_SECURED = 0x2,
623 } security;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700624 /* Extensible Synchronization Framework */
625 struct ieee80211_mesh_sync_ops *sync_ops;
626 s64 sync_offset_clockdrift_max;
627 spinlock_t sync_offset_lock;
628 bool adjusting_tbtt;
Johannes Berg472dbc42008-09-11 00:01:49 +0200629};
Johannes Berg902acc72008-02-23 15:17:19 +0100630
631#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200632#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
633 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100634#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200635#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100636 do { } while (0)
637#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700638
Johannes Berg213cd112008-09-11 00:01:54 +0200639/**
640 * enum ieee80211_sub_if_data_flags - virtual interface flags
641 *
642 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
643 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200644 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
645 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
646 * associated stations and deliver multicast frames both
647 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200648 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100649 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200650 */
651enum ieee80211_sub_if_data_flags {
652 IEEE80211_SDATA_ALLMULTI = BIT(0),
653 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100654 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
655 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200656 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100657 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200658};
659
Johannes Berg34d4bc42010-08-27 12:35:58 +0200660/**
661 * enum ieee80211_sdata_state_bits - virtual interface state bits
662 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
663 * mirrors netif_running() but is separate for interface type
664 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200665 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
666 * mode, so queues are stopped
Johannes Berg34d4bc42010-08-27 12:35:58 +0200667 */
668enum ieee80211_sdata_state_bits {
669 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200670 SDATA_STATE_OFFCHANNEL,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200671};
672
Jiri Bencf0706e82007-05-05 11:45:53 -0700673struct ieee80211_sub_if_data {
674 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700675
676 struct wireless_dev wdev;
677
Johannes Berg11a843b2007-08-28 17:01:55 -0400678 /* keys */
679 struct list_head key_list;
680
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530681 /* count for keys needing tailroom space allocation */
682 int crypto_tx_tailroom_needed_cnt;
683
Jiri Bencf0706e82007-05-05 11:45:53 -0700684 struct net_device *dev;
685 struct ieee80211_local *local;
686
Jiri Slaby13262ff2007-08-28 17:01:54 -0400687 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200688
Johannes Berg34d4bc42010-08-27 12:35:58 +0200689 unsigned long state;
690
Jiri Bencf0706e82007-05-05 11:45:53 -0700691 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700692
Johannes Berg47846c92009-11-25 17:46:19 +0100693 char name[IFNAMSIZ];
694
Johannes Berg7da7cc12010-08-05 17:02:38 +0200695 /* to detect idle changes */
696 bool old_idle;
697
Jiri Bencf0706e82007-05-05 11:45:53 -0700698 /* Fragment table for host-based reassembly */
699 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
700 unsigned int fragment_next;
701
Simon Wunderlichb53be792011-11-18 14:20:44 +0100702 /* TID bitmap for NoAck policy */
703 u16 noack_map;
704
Johannes Berg40b275b2011-05-13 14:15:49 +0200705 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
706 struct ieee80211_key __rcu *default_unicast_key;
707 struct ieee80211_key __rcu *default_multicast_key;
708 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700709
Johannes Berg94778282008-10-10 13:21:59 +0200710 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300711 __be16 control_port_protocol;
712 bool control_port_no_encrypt;
Johannes Berg94778282008-10-10 13:21:59 +0200713
Johannes Berg54bcbc62012-03-28 11:04:25 +0200714 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300715
Johannes Berg64592c82010-06-10 10:21:31 +0200716 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200717 struct sk_buff_head skb_queue;
718
Juuso Oikarinen68542962010-06-09 13:43:26 +0300719 bool arp_filter_state;
720
Johannes Berg3e122be2008-07-09 14:40:34 +0200721 /*
722 * AP this belongs to: self in AP mode and
723 * corresponding AP in VLAN mode, NULL for
724 * all others (might be needed later in IBSS)
725 */
726 struct ieee80211_if_ap *bss;
727
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200728 /* bitmap of allowed (non-MCS) rate indexes for rate control */
729 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100730 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700731
732 union {
733 struct ieee80211_if_ap ap;
734 struct ieee80211_if_wds wds;
735 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100736 struct ieee80211_if_managed mgd;
737 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200738 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100739 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700740 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700741
742#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300743 struct {
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100744 struct dentry *dir;
Ben Greear295bafb2010-09-22 20:29:01 -0700745 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100746 struct dentry *default_unicast_key;
747 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200748 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100749 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700750#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100751 /* must be last, dynamically sized area in this! */
752 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700753};
754
Johannes Berg32bfd352007-12-19 01:31:26 +0100755static inline
756struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
757{
758 return container_of(p, struct ieee80211_sub_if_data, vif);
759}
760
Johannes Bergc1475ca2010-06-10 10:21:37 +0200761enum sdata_queue_type {
762 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
763 IEEE80211_SDATA_QUEUE_AGG_START = 1,
764 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
765};
766
Jiri Bencf0706e82007-05-05 11:45:53 -0700767enum {
768 IEEE80211_RX_MSG = 1,
769 IEEE80211_TX_STATUS_MSG = 2,
Johannes Berg37fbd902011-09-29 16:04:39 +0200770 IEEE80211_EOSP_MSG = 3,
771};
772
773struct skb_eosp_msg_data {
774 u8 sta[ETH_ALEN], iface[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700775};
776
Kalle Valoce7c9112008-12-18 23:35:20 +0200777enum queue_stop_reason {
778 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200779 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100780 IEEE80211_QUEUE_STOP_REASON_CSA,
781 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100782 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200783 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Kalle Valoce7c9112008-12-18 23:35:20 +0200784};
785
Luciano Coelho65a65382010-12-21 16:02:17 +0200786#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100787struct tpt_led_trigger {
788 struct led_trigger trig;
789 char name[32];
790 const struct ieee80211_tpt_blink *blink_table;
791 unsigned int blink_table_len;
792 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100793 unsigned long prev_traffic;
794 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100795 unsigned int active, want;
796 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100797};
Luciano Coelho65a65382010-12-21 16:02:17 +0200798#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100799
Helmut Schaa142b9f52009-07-23 13:18:01 +0200800/**
801 * mac80211 scan flags - currently active scan mode
802 *
803 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
804 * well be on the operating channel
805 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
806 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700807 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
808 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200809 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
810 * that the scan completed.
811 * @SCAN_ABORTED: Set for our scan work function when the driver reported
812 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200813 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200814enum {
815 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200816 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700817 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200818 SCAN_COMPLETED,
819 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200820};
821
822/**
823 * enum mac80211_scan_state - scan state machine states
824 *
825 * @SCAN_DECISION: Main entry point to the scan state machine, this state
826 * determines if we should keep on scanning or switch back to the
827 * operating channel
828 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
829 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100830 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
831 * send out data
832 * @SCAN_RESUME: Resume the scan and scan the next channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200833 */
834enum mac80211_scan_state {
835 SCAN_DECISION,
836 SCAN_SET_CHANNEL,
837 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100838 SCAN_SUSPEND,
839 SCAN_RESUME,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200840};
841
Jiri Bencf0706e82007-05-05 11:45:53 -0700842struct ieee80211_local {
843 /* embed the driver visible part.
844 * don't cast (use the static inlines below), but we keep
845 * it first anyway so they become a no-op */
846 struct ieee80211_hw hw;
847
848 const struct ieee80211_ops *ops;
849
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400850 /*
Johannes Bergaf6b6372009-12-23 13:15:35 +0100851 * work stuff, potentially off-channel (in the future)
852 */
Johannes Bergaf6b6372009-12-23 13:15:35 +0100853 struct list_head work_list;
854 struct timer_list work_timer;
855 struct work_struct work_work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100856
857 /*
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400858 * private workqueue to mac80211. mac80211 makes this accessible
859 * via ieee80211_queue_work()
860 */
861 struct workqueue_struct *workqueue;
862
Johannes Berge4e72fb2009-03-23 17:28:42 +0100863 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100864 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200865 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100866
Jiri Bencf0706e82007-05-05 11:45:53 -0700867 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100868 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100869 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200870 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
871 fif_probe_req;
872 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400873 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200874
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300875 bool wiphy_ciphers_allocated;
876
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200877 /* protects the aggregated multicast list and filter calls */
878 spinlock_t filter_lock;
879
Johannes Berg3ac64be2009-08-17 16:16:53 +0200880 /* used for uploading changed mc list */
881 struct work_struct reconfig_filter;
882
Johannes Berg0f782312009-12-01 13:37:02 +0100883 /* used to reconfigure hardware SM PS */
884 struct work_struct recalc_smps;
885
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200886 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000887 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200888
Johannes Bergd0709a62008-02-25 16:27:46 +0100889 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200890
891 /*
892 * suspended is true if we finished all the suspend _and_ we have
893 * not yet come up from resume. This is to be used by mac80211
894 * to ensure driver sanity during suspend and mac80211's own
895 * sanity. It can eventually be used for WoW as well.
896 */
897 bool suspended;
898
899 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100900 * Resuming is true while suspended, but when we're reprogramming the
901 * hardware -- at that time it's allowed to use ieee80211_queue_work()
902 * again even though some other parts of the stack are still suspended
903 * and we still drop received frames to avoid waking the stack.
904 */
905 bool resuming;
906
907 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200908 * quiescing is true during the suspend process _only_ to
909 * ease timer cancelling etc.
910 */
911 bool quiescing;
912
Johannes Bergea77f122009-08-21 14:44:45 +0200913 /* device is started */
914 bool started;
915
Johannes Bergeecc4802011-05-04 15:37:29 +0200916 /* wowlan is enabled -- don't reconfig on resume */
917 bool wowlan;
918
Johannes Bergb306f452007-07-10 19:32:08 +0200919 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700920
Jiri Bencf0706e82007-05-05 11:45:53 -0700921 /* Tasklet and skb queue to process calls from IRQ mode. All frames
922 * added to skb_queue will be processed, but frames in
923 * skb_queue_unreliable may be dropped if the total length of these
924 * queues increases over the limit. */
925#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
926 struct tasklet_struct tasklet;
927 struct sk_buff_head skb_queue;
928 struct sk_buff_head skb_queue_unreliable;
929
Christian Lamparter24a8fda2010-12-30 17:25:29 +0100930 /*
931 * Internal FIFO queue which is shared between multiple rx path
932 * stages. Its main task is to provide a serialization mechanism,
933 * so all rx handlers can enjoy having exclusive access to their
934 * private data structures.
935 */
936 struct sk_buff_head rx_skb_queue;
937 bool running_rx_handler; /* protected by rx_skb_queue.lock */
938
Johannes Bergd0709a62008-02-25 16:27:46 +0100939 /* Station data */
940 /*
Johannes Berg4d339602011-12-15 11:24:20 +0100941 * The mutex only protects the list, hash table and
942 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +0100943 */
Johannes Berg34e89502010-02-03 13:59:58 +0100944 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +0100945 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +0100946 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +0100947 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +0200948 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -0700949 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200950 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -0700951
Johannes Berg2a577d92009-03-23 17:28:37 +0100952 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700953 struct tasklet_struct tx_pending_tasklet;
954
Johannes Berga6a67db2010-06-10 10:21:41 +0200955 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100956
Johannes Berg53918992007-09-26 15:19:47 +0200957 /* number of interfaces with corresponding IFF_ flags */
958 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700959
960 struct rate_control_ref *rate_ctrl;
961
Felix Fietkau5f9f1812011-03-25 21:39:19 +0100962 struct crypto_cipher *wep_tx_tfm;
963 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -0700964 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700965
Johannes Bergc771c9d2009-01-23 22:54:03 +0100966 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400967 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100968 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400969
Johannes Bergb16bd152008-04-11 21:40:35 +0200970 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +0200971 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +0200972 * key pointers (write access, they're RCU.)
973 */
Johannes Bergad0e2b52010-06-01 10:19:19 +0200974 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200975
Johannes Berga1699b72010-07-30 16:46:07 +0200976 /* mutex for scan and work locking */
977 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200978
Johannes Bergc2b13452008-09-11 00:01:55 +0200979 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200980 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +0100981 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +0200982 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100983 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Johannes Berg2a519312009-02-10 21:25:55 +0100984 struct ieee80211_channel *scan_channel;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100985 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -0700986 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +0200987 int scan_ies_len;
Johannes Berg8318d782008-01-24 19:38:38 +0100988
Luciano Coelho79f460c2011-05-11 17:09:36 +0300989 bool sched_scanning;
990 struct ieee80211_sched_scan_ies sched_scan_ies;
Luciano Coelho85a99942011-05-12 16:28:29 +0300991 struct work_struct sched_scan_stopped_work;
Luciano Coelho79f460c2011-05-11 17:09:36 +0300992
Helmut Schaadf13cce2010-02-24 14:19:21 +0100993 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +0200994 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -0700995 struct delayed_work scan_work;
Johannes Berg491775a2008-09-08 17:44:23 +0200996 struct ieee80211_sub_if_data *scan_sdata;
Johannes Berg0aaffa92010-05-05 15:28:27 +0200997 enum nl80211_channel_type _oper_channel_type;
Johannes Berg2a519312009-02-10 21:25:55 +0100998 struct ieee80211_channel *oper_channel, *csa_channel;
Jiri Bencf0706e82007-05-05 11:45:53 -0700999
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001000 /* Temporary remain-on-channel for off-channel operations */
1001 struct ieee80211_channel *tmp_channel;
1002 enum nl80211_channel_type tmp_channel_type;
1003
Jiri Bencf0706e82007-05-05 11:45:53 -07001004 /* SNMP counters */
1005 /* dot11CountersTable */
1006 u32 dot11TransmittedFragmentCount;
1007 u32 dot11MulticastTransmittedFrameCount;
1008 u32 dot11FailedCount;
1009 u32 dot11RetryCount;
1010 u32 dot11MultipleRetryCount;
1011 u32 dot11FrameDuplicateCount;
1012 u32 dot11ReceivedFragmentCount;
1013 u32 dot11MulticastReceivedFrameCount;
1014 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001015
1016#ifdef CONFIG_MAC80211_LEDS
1017 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001018 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001019 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001020 char tx_led_name[32], rx_led_name[32],
1021 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001022#endif
1023
Jiri Bencf0706e82007-05-05 11:45:53 -07001024#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1025 /* TX/RX handler statistics */
1026 unsigned int tx_handlers_drop;
1027 unsigned int tx_handlers_queued;
1028 unsigned int tx_handlers_drop_unencrypted;
1029 unsigned int tx_handlers_drop_fragment;
1030 unsigned int tx_handlers_drop_wep;
1031 unsigned int tx_handlers_drop_not_assoc;
1032 unsigned int tx_handlers_drop_unauth_port;
1033 unsigned int rx_handlers_drop;
1034 unsigned int rx_handlers_queued;
1035 unsigned int rx_handlers_drop_nullfunc;
1036 unsigned int rx_handlers_drop_defrag;
1037 unsigned int rx_handlers_drop_short;
1038 unsigned int rx_handlers_drop_passive_scan;
1039 unsigned int tx_expand_skb_head;
1040 unsigned int tx_expand_skb_head_cloned;
1041 unsigned int rx_expand_skb_head;
1042 unsigned int rx_expand_skb_head2;
1043 unsigned int rx_handlers_fragments;
1044 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001045#define I802_DEBUG_INC(c) (c)++
1046#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1047#define I802_DEBUG_INC(c) do { } while (0)
1048#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1049
1050
Jiri Bencf0706e82007-05-05 11:45:53 -07001051 int total_ps_buffered; /* total number of all buffered unicast and
1052 * multicast packets for power saving stations
1053 */
Jiri Bencf0706e82007-05-05 11:45:53 -07001054 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
Kalle Valo520eb822008-12-18 23:35:27 +02001055
Kalle Valo572e0012009-02-10 17:09:31 +02001056 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001057 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001058 /*
1059 * PS can only be enabled when we have exactly one managed
1060 * interface (and monitors) in PS, this then points there.
1061 */
1062 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001063 struct work_struct dynamic_ps_enable_work;
1064 struct work_struct dynamic_ps_disable_work;
1065 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001066 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001067 struct notifier_block ifa_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001068
Juuso Oikarinenff616382010-06-09 09:51:52 +03001069 /*
1070 * The dynamic ps timeout configured from user space via WEXT -
1071 * this will override whatever chosen by mac80211 internally.
1072 */
1073 int dynamic_ps_forced_timeout;
Juuso Oikarinenf90754c2010-06-21 08:59:39 +03001074 int dynamic_ps_user_timeout;
1075 bool disable_dynamic_ps;
Juuso Oikarinenff616382010-06-09 09:51:52 +03001076
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001077 int user_power_level; /* in dBm */
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +05301078 int power_constr_level; /* in dBm */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001079
Johannes Berg0f782312009-12-01 13:37:02 +01001080 enum ieee80211_smps_mode smps_mode;
1081
Johannes Bergf2753dd2009-04-14 10:09:24 +02001082 struct work_struct restart_work;
1083
Jiri Bence9f207f2007-05-05 11:46:38 -07001084#ifdef CONFIG_MAC80211_DEBUGFS
1085 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001086 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001087 struct dentry *keys;
1088 } debugfs;
1089#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001090
Johannes Berg21f83582010-12-18 17:20:47 +01001091 struct ieee80211_channel *hw_roc_channel;
1092 struct net_device *hw_roc_dev;
Johannes Berg4334ec82011-02-02 16:58:06 +01001093 struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
Johannes Berg21f83582010-12-18 17:20:47 +01001094 struct work_struct hw_roc_start, hw_roc_done;
1095 enum nl80211_channel_type hw_roc_channel_type;
1096 unsigned int hw_roc_duration;
1097 u32 hw_roc_cookie;
Johannes Berg90fc4b32010-12-18 17:20:48 +01001098 bool hw_roc_for_tx;
Johannes Berg21f83582010-12-18 17:20:47 +01001099
Johannes Berga729cff2011-11-06 14:13:34 +01001100 struct idr ack_status_frames;
1101 spinlock_t ack_status_lock;
1102
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001103 /* dummy netdev for use w/ NAPI */
1104 struct net_device napi_dev;
1105
1106 struct napi_struct napi;
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001107
1108 /* virtual monitor interface */
1109 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Jiri Bencf0706e82007-05-05 11:45:53 -07001110};
1111
Johannes Berg3e122be2008-07-09 14:40:34 +02001112static inline struct ieee80211_sub_if_data *
1113IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1114{
Johannes Berg3e122be2008-07-09 14:40:34 +02001115 return netdev_priv(dev);
1116}
1117
Johannes Bergc1475ca2010-06-10 10:21:37 +02001118/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001119struct ieee80211_ra_tid {
1120 u8 ra[ETH_ALEN];
1121 u16 tid;
1122};
1123
Johannes Bergdd769862011-11-18 16:54:50 +01001124/* Parsed Information Elements */
1125struct ieee802_11_elems {
1126 u8 *ie_start;
1127 size_t total_len;
1128
1129 /* pointers to IEs */
1130 u8 *ssid;
1131 u8 *supp_rates;
1132 u8 *fh_params;
1133 u8 *ds_params;
1134 u8 *cf_params;
1135 struct ieee80211_tim_ie *tim;
1136 u8 *ibss_params;
1137 u8 *challenge;
1138 u8 *wpa;
1139 u8 *rsn;
1140 u8 *erp_info;
1141 u8 *ext_supp_rates;
1142 u8 *wmm_info;
1143 u8 *wmm_param;
1144 struct ieee80211_ht_cap *ht_cap_elem;
Johannes Berg074d46d2012-03-15 19:45:16 +01001145 struct ieee80211_ht_operation *ht_operation;
Johannes Bergdd769862011-11-18 16:54:50 +01001146 struct ieee80211_meshconf_ie *mesh_config;
1147 u8 *mesh_id;
1148 u8 *peering;
1149 u8 *preq;
1150 u8 *prep;
1151 u8 *perr;
1152 struct ieee80211_rann_ie *rann;
1153 u8 *ch_switch_elem;
1154 u8 *country_elem;
1155 u8 *pwr_constr_elem;
1156 u8 *quiet_elem; /* first quite element */
1157 u8 *timeout_int;
1158
1159 /* length of them, respectively */
1160 u8 ssid_len;
1161 u8 supp_rates_len;
1162 u8 fh_params_len;
1163 u8 ds_params_len;
1164 u8 cf_params_len;
1165 u8 tim_len;
1166 u8 ibss_params_len;
1167 u8 challenge_len;
1168 u8 wpa_len;
1169 u8 rsn_len;
1170 u8 erp_info_len;
1171 u8 ext_supp_rates_len;
1172 u8 wmm_info_len;
1173 u8 wmm_param_len;
1174 u8 mesh_id_len;
1175 u8 peering_len;
1176 u8 preq_len;
1177 u8 prep_len;
1178 u8 perr_len;
1179 u8 ch_switch_elem_len;
1180 u8 country_elem_len;
1181 u8 pwr_constr_elem_len;
1182 u8 quiet_elem_len;
1183 u8 num_of_quiet_elem; /* can be more the one */
1184 u8 timeout_int_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001185
1186 /* whether a parse error occurred while retrieving these elements */
1187 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001188};
1189
Jiri Bencf0706e82007-05-05 11:45:53 -07001190static inline struct ieee80211_local *hw_to_local(
1191 struct ieee80211_hw *hw)
1192{
1193 return container_of(hw, struct ieee80211_local, hw);
1194}
1195
Jiri Bencf0706e82007-05-05 11:45:53 -07001196
Johannes Berg571ecf62007-07-27 15:43:22 +02001197static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1198{
Joe Perchesb203ca32012-05-08 18:56:52 +00001199 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001200 is_broadcast_ether_addr(raddr);
1201}
1202
1203
Johannes Berge8975582008-10-09 12:18:51 +02001204int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001205void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001206void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1207 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001208void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001209u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001210
Johannes Berg46900292009-02-15 12:44:28 +01001211/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001212void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001213int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1214 struct cfg80211_auth_request *req);
1215int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1216 struct cfg80211_assoc_request *req);
1217int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001218 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001219int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001220 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001221void ieee80211_send_pspoll(struct ieee80211_local *local,
1222 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001223void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1224int ieee80211_max_network_latency(struct notifier_block *nb,
1225 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001226int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Bergcc32abd2009-05-15 11:52:31 +02001227void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1228 struct ieee80211_channel_sw_ie *sw_elem,
Johannes Berg5ce6e432010-05-11 16:20:57 +02001229 struct ieee80211_bss *bss,
1230 u64 timestamp);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001231void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1232void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001233void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1234void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1235 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001236void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001237void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001238void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001239
Johannes Berg46900292009-02-15 12:44:28 +01001240/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001241void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1242void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001243void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1244 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001245int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1246 struct cfg80211_ibss_params *params);
1247int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001248void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1249void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001250void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1251void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1252 struct sk_buff *skb);
1253
1254/* mesh code */
1255void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1256void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1257 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001258
Johannes Berg9c6bd792008-09-11 00:01:52 +02001259/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001260void ieee80211_scan_work(struct work_struct *work);
Johannes Bergf3b85252009-04-23 16:01:47 +02001261int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
Johannes Bergbe4a4b62010-05-03 08:49:48 +02001262 const u8 *ssid, u8 ssid_len,
1263 struct ieee80211_channel *chan);
Johannes Bergc2b13452008-09-11 00:01:55 +02001264int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001265 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001266void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001267void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001268ieee80211_rx_result
Johannes Bergf1d58c22009-06-17 13:13:00 +02001269ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001270
Johannes Berg0a51b272008-09-08 17:44:25 +02001271void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001272struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001273ieee80211_bss_info_update(struct ieee80211_local *local,
1274 struct ieee80211_rx_status *rx_status,
1275 struct ieee80211_mgmt *mgmt,
1276 size_t len,
1277 struct ieee802_11_elems *elems,
Johannes Berg2a519312009-02-10 21:25:55 +01001278 struct ieee80211_channel *channel,
1279 bool beacon);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001280void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001281 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001282
Luciano Coelho79f460c2011-05-11 17:09:36 +03001283/* scheduled scan handling */
1284int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1285 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001286int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1287void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001288
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001289/* off-channel helpers */
Ben Greearb23b0252011-02-04 11:54:17 -08001290void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1291 bool offchannel_ps_enable);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001292void ieee80211_offchannel_return(struct ieee80211_local *local,
Ben Greearb23b0252011-02-04 11:54:17 -08001293 bool offchannel_ps_disable);
Johannes Berg21f83582010-12-18 17:20:47 +01001294void ieee80211_hw_roc_setup(struct ieee80211_local *local);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001295
Johannes Berg3e122be2008-07-09 14:40:34 +02001296/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001297int ieee80211_iface_init(void);
1298void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001299int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg05c914f2008-09-11 00:01:58 +02001300 struct net_device **new_dev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001301 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001302int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001303 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001304void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001305void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001306u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
1307void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001308void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1309 const int offset);
Jiri Bencf0706e82007-05-05 11:45:53 -07001310
Johannes Berg9607e6b2009-12-23 13:15:31 +01001311static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1312{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001313 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001314}
1315
Johannes Berge2ebc742007-07-27 15:43:22 +02001316/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001317void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1318void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001319netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1320 struct net_device *dev);
1321netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1322 struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +02001323
Johannes Bergde1ede72008-09-09 14:42:50 +02001324/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001325void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1326 struct ieee80211_sta_ht_cap *ht_cap);
1327void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1328 struct ieee80211_supported_band *sband,
Johannes Bergae5eb022008-10-14 16:58:37 +02001329 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001330 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergb8695a82009-02-10 21:25:46 +01001331void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1332 const u8 *da, u16 tid,
1333 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001334int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1335 enum ieee80211_smps_mode smps, const u8 *da,
1336 const u8 *bssid);
Johannes Bergd1f5b7a2010-08-05 17:05:55 +02001337void ieee80211_request_smps_work(struct work_struct *work);
Johannes Bergde1ede72008-09-09 14:42:50 +02001338
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001339void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001340 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001341void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001342 u16 initiator, u16 reason, bool stop);
1343void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
Johannes Bergde1ede72008-09-09 14:42:50 +02001344void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1345 struct sta_info *sta,
1346 struct ieee80211_mgmt *mgmt, size_t len);
1347void ieee80211_process_addba_resp(struct ieee80211_local *local,
1348 struct sta_info *sta,
1349 struct ieee80211_mgmt *mgmt,
1350 size_t len);
1351void ieee80211_process_addba_request(struct ieee80211_local *local,
1352 struct sta_info *sta,
1353 struct ieee80211_mgmt *mgmt,
1354 size_t len);
1355
Johannes Berg849b7962009-02-10 21:25:54 +01001356int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001357 enum ieee80211_back_parties initiator,
1358 bool tx);
Johannes Berg67c282c2010-06-10 10:21:43 +02001359int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001360 enum ieee80211_back_parties initiator,
1361 bool tx);
Johannes Berg5d22c892010-06-10 10:21:40 +02001362void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1363void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001364void ieee80211_ba_session_work(struct work_struct *work);
1365void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001366void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001367
Johannes Berg39192c02008-09-09 14:49:03 +02001368/* Spectrum management */
1369void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1370 struct ieee80211_mgmt *mgmt,
1371 size_t len);
1372
Johannes Bergf2753dd2009-04-14 10:09:24 +02001373/* Suspend/resume and hw reconfiguration */
1374int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001375void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001376
Johannes Berg827b1fb2009-03-13 11:44:18 +01001377#ifdef CONFIG_PM
Johannes Bergeecc4802011-05-04 15:37:29 +02001378int __ieee80211_suspend(struct ieee80211_hw *hw,
1379 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001380
1381static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1382{
John W. Linville85f72bc2010-09-01 16:12:28 -04001383 struct ieee80211_local *local = hw_to_local(hw);
1384
1385 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1386 "%s: resume with hardware scan still in progress\n",
1387 wiphy_name(hw->wiphy));
1388
Johannes Bergf2753dd2009-04-14 10:09:24 +02001389 return ieee80211_reconfig(hw_to_local(hw));
1390}
Johannes Berg827b1fb2009-03-13 11:44:18 +01001391#else
Johannes Bergeecc4802011-05-04 15:37:29 +02001392static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
1393 struct cfg80211_wowlan *wowlan)
Johannes Berg827b1fb2009-03-13 11:44:18 +01001394{
1395 return 0;
1396}
Johannes Bergf2753dd2009-04-14 10:09:24 +02001397
Johannes Berg827b1fb2009-03-13 11:44:18 +01001398static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1399{
1400 return 0;
1401}
1402#endif
Bob Copeland665af4f2009-01-19 11:20:53 -05001403
Johannes Bergc2d15602007-07-27 15:43:23 +02001404/* utility functions/constants */
1405extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001406u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001407 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001408int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Johannes Bergc2d15602007-07-27 15:43:23 +02001409 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001410void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001411 struct ieee80211_hdr *hdr, const u8 *tsc,
1412 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001413void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1414 bool bss_notify);
Johannes Bergce662b442011-09-29 16:04:34 +02001415void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001416
1417void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1418 struct sk_buff *skb, int tid);
1419static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1420 struct sk_buff *skb)
1421{
1422 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1423 ieee80211_tx_skb_tid(sdata, skb, 7);
1424}
1425
Johannes Berg9c6bd792008-09-11 00:01:52 +02001426void ieee802_11_parse_elems(u8 *start, size_t len,
1427 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001428u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1429 struct ieee802_11_elems *elems,
1430 u64 filter, u32 crc);
Johannes Berg881d9482009-01-21 15:13:48 +01001431u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001432 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001433
Kalle Valo520eb822008-12-18 23:35:27 +02001434void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1435void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1436void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001437void ieee80211_send_nullfunc(struct ieee80211_local *local,
1438 struct ieee80211_sub_if_data *sdata,
1439 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001440void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1441 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001442void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001443 struct ieee80211_hdr *hdr, bool ack);
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +02001444void ieee80211_beacon_connection_loss_work(struct work_struct *work);
Kalle Valo520eb822008-12-18 23:35:27 +02001445
Kalle Valoce7c9112008-12-18 23:35:20 +02001446void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1447 enum queue_stop_reason reason);
1448void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1449 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001450void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1451 enum queue_stop_reason reason);
1452void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1453 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001454void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001455void ieee80211_add_pending_skb(struct ieee80211_local *local,
1456 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001457void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1458 struct sk_buff_head *skbs,
1459 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001460static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1461 struct sk_buff_head *skbs)
1462{
1463 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1464}
Kalle Valoce7c9112008-12-18 23:35:20 +02001465
Johannes Berg46900292009-02-15 12:44:28 +01001466void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1467 u16 transaction, u16 auth_alg,
Johannes Bergfffd0932009-07-08 14:22:54 +02001468 u8 *extra, size_t extra_len, const u8 *bssid,
Antonio Quartulliefa6a092012-01-09 19:43:06 +01001469 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
Johannes Bergde95a542009-04-01 11:58:36 +02001470int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Berg4d36ec582009-10-27 20:59:55 +01001471 const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001472 enum ieee80211_band band, u32 rate_mask,
1473 u8 channel);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001474struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001475 u8 *dst, u32 ratemask,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001476 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001477 const u8 *ie, size_t ie_len,
1478 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001479void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001480 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001481 const u8 *ie, size_t ie_len,
Rajkumar Manoharanaad14ce2011-09-25 14:53:31 +05301482 u32 ratemask, bool directed, bool no_cck);
Johannes Berg46900292009-02-15 12:44:28 +01001483
1484void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1485 const size_t supp_rates_len,
1486 const u8 *supp_rates);
1487u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1488 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001489 enum ieee80211_band band, u32 *basic_rates);
Johannes Berg0f782312009-12-01 13:37:02 +01001490int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1491 enum ieee80211_smps_mode smps_mode);
Johannes Berg025e6be2010-10-05 10:41:47 +02001492void ieee80211_recalc_smps(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001493
Johannes Berg8e664fb2009-12-23 13:15:38 +01001494size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1495 const u8 *ids, int n_ids, size_t offset);
1496size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001497u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001498 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001499u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1500 struct ieee80211_channel *channel,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001501 enum nl80211_channel_type channel_type,
1502 u16 prot_mode);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001503
Johannes Bergaf6b6372009-12-23 13:15:35 +01001504/* internal work items */
1505void ieee80211_work_init(struct ieee80211_local *local);
1506void ieee80211_add_work(struct ieee80211_work *wk);
1507void free_work(struct ieee80211_work *wk);
1508void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001509int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
1510 struct ieee80211_channel *chan,
1511 enum nl80211_channel_type channel_type,
1512 unsigned int duration, u64 *cookie);
1513int ieee80211_wk_cancel_remain_on_channel(
1514 struct ieee80211_sub_if_data *sdata, u64 cookie);
Johannes Bergaf6b6372009-12-23 13:15:35 +01001515
Johannes Bergf444de02010-05-05 15:25:02 +02001516/* channel management */
1517enum ieee80211_chan_mode {
1518 CHAN_MODE_UNDEFINED,
1519 CHAN_MODE_HOPPING,
1520 CHAN_MODE_FIXED,
1521};
1522
1523enum ieee80211_chan_mode
1524ieee80211_get_channel_mode(struct ieee80211_local *local,
1525 struct ieee80211_sub_if_data *ignore);
Johannes Berg0aaffa92010-05-05 15:28:27 +02001526bool ieee80211_set_channel_type(struct ieee80211_local *local,
1527 struct ieee80211_sub_if_data *sdata,
1528 enum nl80211_channel_type chantype);
Alexander Simon42e7aa72011-10-26 14:47:26 -07001529enum nl80211_channel_type
Johannes Berg074d46d2012-03-15 19:45:16 +01001530ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
Johannes Bergf444de02010-05-05 15:25:02 +02001531
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001532#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001533#define debug_noinline noinline
1534#else
1535#define debug_noinline
1536#endif
1537
Jiri Bencf0706e82007-05-05 11:45:53 -07001538#endif /* IEEE80211_I_H */