blob: 3701930c66493af53461a4f0c1849ad26450e092 [file] [log] [blame]
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"
Johannes Bergbdcbd8e2012-06-22 11:29:50 +020033#include "debug.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070034
Johannes Berg9cfb0002008-04-03 15:17:31 +020035struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070036
37/* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39#define AP_MAX_BC_BUFFER 128
40
41/* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44#define TOTAL_MAX_TX_BUFFER 512
45
46/* Required encryption head and tailroom */
47#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020048#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070049
50/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54#define IEEE80211_FRAGMENT_MAX 4
55
Johannes Berg1ea6f9c2012-10-24 10:59:25 +020056/* power level hasn't been configured (or set to automatic) */
57#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030059/*
60 * Some APs experience problems when working with U-APSD. Decrease the
61 * probability of that happening by using legacy mode for all ACs but VO.
62 * The AP that caused us trouble was a Cisco 4410N. It ignores our
63 * setting, and always treats non-VO ACs as legacy.
64 */
Kalle Valoab133152010-01-12 10:42:31 +020065#define IEEE80211_DEFAULT_UAPSD_QUEUES \
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030066 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
Kalle Valoab133152010-01-12 10:42:31 +020067
68#define IEEE80211_DEFAULT_MAX_SP_LEN \
69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
70
Antonio Quartulli6ae16772012-09-07 13:28:52 +020071#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
72
Jiri Bencf0706e82007-05-05 11:45:53 -070073struct ieee80211_fragment_entry {
74 unsigned long first_frag_time;
75 unsigned int seq;
76 unsigned int rx_queue;
77 unsigned int last_frag;
78 unsigned int extra_len;
79 struct sk_buff_head skb_list;
80 int ccmp; /* Whether fragments were encrypted with CCMP */
81 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
82};
83
84
Johannes Bergc2b13452008-09-11 00:01:55 +020085struct ieee80211_bss {
Johannes Bergef429da2013-02-05 17:48:40 +010086 u32 device_ts_beacon, device_ts_presp;
Johannes Berg8c358bc2012-05-22 22:13:05 +020087
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030088 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020089 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010090
Jiri Bencf0706e82007-05-05 11:45:53 -070091#define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
Alexander Bondar817cee72013-05-19 14:23:57 +030094 struct ieee80211_rate *beacon_rate;
Jiri Bencf0706e82007-05-05 11:45:53 -070095
Johannes Berg00d3f142009-02-10 21:26:00 +010096 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -030097 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +020098 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100100 * otherwise, you probably don't want to use them.
101 */
102 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200103 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800104
105 /* Keep track of the corruption of the last beacon/probe response. */
106 u8 corrupt_data;
107
108 /* Keep track of what bits of information we have valid info for. */
109 u8 valid_data;
110};
111
112/**
113 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
114 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
115 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
116 *
117 * These are bss flags that are attached to a bss in the
118 * @corrupt_data field of &struct ieee80211_bss.
119 */
120enum ieee80211_bss_corrupt_data_flags {
121 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
122 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
123};
124
125/**
126 * enum ieee80211_valid_data_flags - BSS valid data flags
Paul Stewartfcff4f12012-02-23 17:59:53 -0800127 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
128 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
129 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
130 *
131 * These are bss flags that are attached to a bss in the
132 * @valid_data field of &struct ieee80211_bss. They show which parts
133 * of the data structure were recieved as a result of an un-corrupted
134 * beacon/probe response.
135 */
136enum ieee80211_bss_valid_data_flags {
Paul Stewartfcff4f12012-02-23 17:59:53 -0800137 IEEE80211_BSS_VALID_WMM = BIT(1),
138 IEEE80211_BSS_VALID_RATES = BIT(2),
139 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700140};
141
Johannes Berg9ae54c82008-01-31 19:48:20 +0100142typedef unsigned __bitwise__ ieee80211_tx_result;
143#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
144#define TX_DROP ((__force ieee80211_tx_result) 1u)
145#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
146
Johannes Berg5cf121c2008-02-25 16:27:43 +0100147#define IEEE80211_TX_UNICAST BIT(1)
148#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100149
Johannes Berg5cf121c2008-02-25 16:27:43 +0100150struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700151 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100152 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700153 struct ieee80211_local *local;
154 struct ieee80211_sub_if_data *sdata;
155 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700156 struct ieee80211_key *key;
Felix Fietkau0d528d82013-04-22 16:14:41 +0200157 struct ieee80211_tx_rate rate;
Jiri Bencf0706e82007-05-05 11:45:53 -0700158
Johannes Berg056cdd52008-03-26 23:21:47 +0100159 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100160};
161
162
163typedef unsigned __bitwise__ ieee80211_rx_result;
164#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
165#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
166#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
167#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
168
Johannes Berg554891e2010-09-24 12:38:25 +0200169/**
170 * enum ieee80211_packet_rx_flags - packet RX flags
171 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
172 * (incl. multicast frames)
Johannes Berg554891e2010-09-24 12:38:25 +0200173 * @IEEE80211_RX_FRAGMENTED: fragmented frame
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200177 *
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
180 */
181enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200182 IEEE80211_RX_RA_MATCH = BIT(1),
183 IEEE80211_RX_FRAGMENTED = BIT(2),
184 IEEE80211_RX_AMSDU = BIT(3),
185 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100186 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200187};
188
189/**
190 * enum ieee80211_rx_flags - RX data flags
191 *
192 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100193 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
194 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200195 *
196 * These flags are used across handling multiple interfaces
197 * for a single frame.
198 */
199enum ieee80211_rx_flags {
200 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100201 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200202};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100203
204struct ieee80211_rx_data {
205 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100206 struct ieee80211_local *local;
207 struct ieee80211_sub_if_data *sdata;
208 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100209 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100210
Johannes Berg056cdd52008-03-26 23:21:47 +0100211 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200212
213 /*
214 * Index into sequence numbers array, 0..16
215 * since the last (16) is used for non-QoS,
216 * will be 16 on non-QoS frames.
217 */
218 int seqno_idx;
219
220 /*
221 * Index into the security IV/PN arrays, 0..16
222 * since the last (16) is used for CCMP-encrypted
223 * management frames, will be set to 16 on mgmt
224 * frames and 0 on non-QoS frames.
225 */
226 int security_idx;
227
Johannes Berg5cf121c2008-02-25 16:27:43 +0100228 u32 tkip_iv32;
229 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700230};
231
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100232struct beacon_data {
233 u8 *head, *tail;
234 int head_len, tail_len;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800235 struct ieee80211_meshconf_ie *meshconf;
Johannes Berg88600202012-02-13 15:17:18 +0100236 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100237};
238
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300239struct probe_resp {
240 struct rcu_head rcu_head;
241 int len;
242 u8 data[0];
243};
244
Marco Porschd012a602012-10-10 12:39:50 -0700245struct ps_data {
246 /* yes, this looks ugly, but guarantees that we can later use
247 * bitmap_empty :)
248 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Joe Perches5fe2bb82013-12-18 16:52:17 -0800249 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
250 __aligned(__alignof__(unsigned long));
Marco Porschd012a602012-10-10 12:39:50 -0700251 struct sk_buff_head bc_buf;
252 atomic_t num_sta_ps; /* number of stations in PS mode */
253 int dtim_count;
254 bool dtim_bc_mc;
255};
256
Jiri Bencf0706e82007-05-05 11:45:53 -0700257struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200258 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300259 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700260
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200261 /* to be used after channel switch. */
262 struct cfg80211_beacon_data *next_beacon;
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400263 struct list_head vlans;
264
Marco Porschd012a602012-10-10 12:39:50 -0700265 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200266 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300267 enum ieee80211_smps_mode req_smps, /* requested smps mode */
268 driver_smps_mode; /* smps mode request */
269
270 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700271};
272
273struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700274 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100275 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700276};
277
278struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400279 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100280
281 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200282 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700283};
284
Luis Carlos Coboee385852008-02-23 15:17:11 +0100285struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700286 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
287 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
288 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100289 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
290 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700291 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100292};
293
294#define PREQ_Q_F_START 0x1
295#define PREQ_Q_F_REFRESH 0x2
296struct mesh_preq_queue {
297 struct list_head list;
298 u8 dst[ETH_ALEN];
299 u8 flags;
300};
301
Johannes Berg2eb278e2012-06-05 14:28:42 +0200302#if HZ/100 == 0
303#define IEEE80211_ROC_MIN_LEFT 1
304#else
305#define IEEE80211_ROC_MIN_LEFT (HZ/100)
306#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200307
Johannes Berg2eb278e2012-06-05 14:28:42 +0200308struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200309 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200310 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100311
Johannes Berg2eb278e2012-06-05 14:28:42 +0200312 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100313
314 struct ieee80211_sub_if_data *sdata;
315
Johannes Bergf679f652009-12-23 13:15:34 +0100316 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100317
Johannes Berg2eb278e2012-06-05 14:28:42 +0200318 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100319 bool to_be_freed;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200320
Johannes Berg2eb278e2012-06-05 14:28:42 +0200321 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100322
Johannes Berg2eb278e2012-06-05 14:28:42 +0200323 u32 duration, req_duration;
324 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200325 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200326 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200327};
328
Johannes Berg46900292009-02-15 12:44:28 +0100329/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200330enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200331 IEEE80211_STA_CONNECTION_POLL = BIT(1),
332 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100333 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200334 IEEE80211_STA_CSA_RECEIVED = BIT(5),
335 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200336 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530337 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700338 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200339 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000340 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100341 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
342 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200343 IEEE80211_STA_DISABLE_WMM = BIT(14),
Johannes Bergab1faea2009-07-01 21:41:17 +0200344};
345
Johannes Berg66e67e42012-01-20 13:55:27 +0100346struct ieee80211_mgd_auth_data {
347 struct cfg80211_bss *bss;
348 unsigned long timeout;
349 int tries;
350 u16 algorithm, expected_transaction;
351
352 u8 key[WLAN_KEY_LEN_WEP104];
353 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100354 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100355 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100356
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300357 u16 sae_trans, sae_status;
358 size_t data_len;
359 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100360};
361
362struct ieee80211_mgd_assoc_data {
363 struct cfg80211_bss *bss;
364 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100365
366 unsigned long timeout;
367 int tries;
368
369 u16 capability;
370 u8 prev_bssid[ETH_ALEN];
371 u8 ssid[IEEE80211_MAX_SSID_LEN];
372 u8 ssid_len;
373 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100374 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300375 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100376 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100377 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100378
Johannes Berg9dde6422012-05-16 23:43:19 +0200379 u8 ap_ht_param;
380
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100381 struct ieee80211_vht_cap ap_vht_cap;
382
Johannes Berg66e67e42012-01-20 13:55:27 +0100383 size_t ie_len;
384 u8 ie[];
385};
386
Johannes Berg46900292009-02-15 12:44:28 +0100387struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100388 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200389 struct timer_list conn_mon_timer;
390 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530391 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200392 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530393 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200394 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200395 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100396
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100397 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200398 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300399 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100400 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100401 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200402
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100403 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100404 struct ieee80211_mgd_auth_data *auth_data;
405 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100406
Johannes Berg77fdaa12009-07-07 03:45:17 +0200407 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100408
Jiri Bencf0706e82007-05-05 11:45:53 -0700409 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700410
Johannes Berg965beda2009-04-16 13:17:24 +0200411 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200412 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300413 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200414 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100415 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200416 driver_smps_mode; /* smps mode request */
417
418 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200419
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400420 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700421
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300422 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200423 u32 beacon_crc;
424
Johannes Berg1672c0e32013-01-29 15:02:27 +0100425 bool status_acked;
426 bool status_received;
427 __le16 status_fc;
428
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200429 enum {
430 IEEE80211_MFP_DISABLED,
431 IEEE80211_MFP_OPTIONAL,
432 IEEE80211_MFP_REQUIRED
433 } mfp; /* management frame protection */
434
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200435 /*
436 * Bitmask of enabled u-apsd queues,
437 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
438 * to take effect.
439 */
440 unsigned int uapsd_queues;
441
442 /*
443 * Maximum number of buffered frames AP can deliver during a
444 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
445 * Needs a new association to take effect.
446 */
447 unsigned int uapsd_max_sp_len;
448
Jiri Bencf0706e82007-05-05 11:45:53 -0700449 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100450
451 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700452
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100453 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100454
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700455 /* Signal strength from the last Beacon frame in the current BSS. */
456 int last_beacon_signal;
457
458 /*
459 * Weighted average of the signal strength from Beacon frames in the
460 * current BSS. This is in units of 1/16 of the signal unit to maintain
461 * accuracy and to speed up calculations, i.e., the value need to be
462 * divided by 16 to get the actual value.
463 */
464 int ave_beacon_signal;
465
466 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300467 * Number of Beacon frames used in ave_beacon_signal. This can be used
468 * to avoid generating less reliable cqm events that would be based
469 * only on couple of received frames.
470 */
471 unsigned int count_beacon_signal;
472
473 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700474 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
475 * that triggered a cqm event. 0 indicates that no event has been
476 * generated for the current association.
477 */
478 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700479
480 /*
481 * State variables for keeping track of RSSI of the AP currently
482 * connected to and informing driver when RSSI has gone
483 * below/above a certain threshold.
484 */
485 int rssi_min_thold, rssi_max_thold;
486 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800487
488 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
489 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100490 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
491 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700492};
493
Johannes Berg46900292009-02-15 12:44:28 +0100494struct ieee80211_if_ibss {
495 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200496 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100497
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200498 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200499
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300500 u32 basic_rates;
501
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200502 bool fixed_bssid;
503 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200504 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100505
Antonio Quartulli267335d2012-01-31 20:25:47 +0100506 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200507 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100508
Felix Fietkau4d196e42012-03-01 11:23:37 +0100509 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200510 u8 ssid[IEEE80211_MAX_SSID_LEN];
511 u8 ssid_len, ie_len;
512 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200513 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100514
515 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200516 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100517 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100518
Simon Wunderlich822854b2013-06-28 10:39:59 +0200519 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
520 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
521
Johannes Berg8bf11d82011-12-15 11:17:37 +0100522 spinlock_t incomplete_lock;
523 struct list_head incomplete_stations;
524
Johannes Berg46900292009-02-15 12:44:28 +0100525 enum {
526 IEEE80211_IBSS_MLME_SEARCH,
527 IEEE80211_IBSS_MLME_JOINED,
528 } state;
529};
530
Javier Cardonadbf498f2012-03-31 11:31:32 -0700531/**
532 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
533 *
534 * these declarations define the interface, which enables
535 * vendor-specific mesh synchronization
536 *
537 */
538struct ieee802_11_elems;
539struct ieee80211_mesh_sync_ops {
540 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
541 u16 stype,
542 struct ieee80211_mgmt *mgmt,
543 struct ieee802_11_elems *elems,
544 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800545
546 /* should be called with beacon_data under RCU read lock */
547 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
548 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700549 /* add other framework functions here */
550};
551
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700552struct mesh_csa_settings {
553 struct rcu_head rcu_head;
554 struct cfg80211_csa_settings settings;
555};
556
Johannes Berg472dbc42008-09-11 00:01:49 +0200557struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200558 struct timer_list housekeeping_timer;
559 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000560 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200561
Javier Cardona18889232009-08-10 12:15:52 -0700562 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700563 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200564
565 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
566 size_t mesh_id_len;
567 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000568 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200569 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000570 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200571 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000572 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700573 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000574 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700575 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000576 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000577 /* Local mesh Sequence Number */
578 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200579 /* Last used PREQ ID */
580 u32 preq_id;
581 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000582 /* Timestamp of last SN update */
583 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800584 /* Time when it's ok to send next PERR */
585 unsigned long next_perr;
586 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200587 unsigned long last_preq;
588 struct mesh_rmc *rmc;
589 spinlock_t mesh_preq_queue_lock;
590 struct mesh_preq_queue preq_queue;
591 int preq_queue_len;
592 struct mesh_stats mshstats;
593 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700594 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200595 u32 mesh_seqnum;
596 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700597 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800598 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700599 const u8 *ie;
600 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700601 enum {
602 IEEE80211_MESH_SEC_NONE = 0x0,
603 IEEE80211_MESH_SEC_AUTHED = 0x1,
604 IEEE80211_MESH_SEC_SECURED = 0x2,
605 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800606 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700607 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200608 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700609 s64 sync_offset_clockdrift_max;
610 spinlock_t sync_offset_lock;
611 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100612 /* mesh power save */
613 enum nl80211_mesh_power_mode nonpeer_pm;
614 int ps_peers_light_sleep;
615 int ps_peers_deep_sleep;
616 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700617 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700618 struct mesh_csa_settings __rcu *csa;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700619 bool chsw_init;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700620 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700621 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800622
623 /* offset from skb->data while building IE */
624 int meshconf_offset;
Johannes Berg472dbc42008-09-11 00:01:49 +0200625};
Johannes Berg902acc72008-02-23 15:17:19 +0100626
627#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200628#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
629 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100630#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200631#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100632 do { } while (0)
633#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700634
Johannes Berg213cd112008-09-11 00:01:54 +0200635/**
636 * enum ieee80211_sub_if_data_flags - virtual interface flags
637 *
638 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
639 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200640 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
641 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
642 * associated stations and deliver multicast frames both
643 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200644 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100645 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200646 */
647enum ieee80211_sub_if_data_flags {
648 IEEE80211_SDATA_ALLMULTI = BIT(0),
649 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100650 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
651 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200652 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100653 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200654};
655
Johannes Berg34d4bc42010-08-27 12:35:58 +0200656/**
657 * enum ieee80211_sdata_state_bits - virtual interface state bits
658 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
659 * mirrors netif_running() but is separate for interface type
660 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200661 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
662 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100663 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
664 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200665 */
666enum ieee80211_sdata_state_bits {
667 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200668 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100669 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200670};
671
Michal Kaziord01a1e62012-06-26 14:37:16 +0200672/**
673 * enum ieee80211_chanctx_mode - channel context configuration mode
674 *
675 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
676 * multiple interfaces
677 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
678 * only by a single interface. This can be used for example for
679 * non-fixed channel IBSS.
680 */
681enum ieee80211_chanctx_mode {
682 IEEE80211_CHANCTX_SHARED,
683 IEEE80211_CHANCTX_EXCLUSIVE
684};
685
686struct ieee80211_chanctx {
687 struct list_head list;
688 struct rcu_head rcu_head;
689
690 enum ieee80211_chanctx_mode mode;
691 int refcount;
Johannes Berg8a61af62012-12-13 17:42:30 +0100692 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200693
694 struct ieee80211_chanctx_conf conf;
695};
696
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800697struct mac80211_qos_map {
698 struct cfg80211_qos_map qos_map;
699 struct rcu_head rcu_head;
700};
701
Jiri Bencf0706e82007-05-05 11:45:53 -0700702struct ieee80211_sub_if_data {
703 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700704
705 struct wireless_dev wdev;
706
Johannes Berg11a843b2007-08-28 17:01:55 -0400707 /* keys */
708 struct list_head key_list;
709
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530710 /* count for keys needing tailroom space allocation */
711 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100712 int crypto_tx_tailroom_pending_dec;
713 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530714
Jiri Bencf0706e82007-05-05 11:45:53 -0700715 struct net_device *dev;
716 struct ieee80211_local *local;
717
Jiri Slaby13262ff2007-08-28 17:01:54 -0400718 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200719
Johannes Berg34d4bc42010-08-27 12:35:58 +0200720 unsigned long state;
721
Jiri Bencf0706e82007-05-05 11:45:53 -0700722 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700723
Johannes Berg47846c92009-11-25 17:46:19 +0100724 char name[IFNAMSIZ];
725
Jiri Bencf0706e82007-05-05 11:45:53 -0700726 /* Fragment table for host-based reassembly */
727 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
728 unsigned int fragment_next;
729
Simon Wunderlichb53be792011-11-18 14:20:44 +0100730 /* TID bitmap for NoAck policy */
731 u16 noack_map;
732
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300733 /* bit field of ACM bits (BIT(802.1D tag)) */
734 u8 wmm_acm;
735
Johannes Berg40b275b2011-05-13 14:15:49 +0200736 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
737 struct ieee80211_key __rcu *default_unicast_key;
738 struct ieee80211_key __rcu *default_multicast_key;
739 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700740
Johannes Berg94778282008-10-10 13:21:59 +0200741 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300742 __be16 control_port_protocol;
743 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200744 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200745
Johannes Berg54bcbc62012-03-28 11:04:25 +0200746 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800747 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300748
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200749 struct work_struct csa_finalize_work;
750 int csa_counter_offset_beacon;
751 int csa_counter_offset_presp;
752 bool csa_radar_required;
Luciano Coelho33787fc2013-11-11 20:34:54 +0200753 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200754
Johannes Berg04ecd252012-09-11 14:34:12 +0200755 /* used to reconfigure hardware SM PS */
756 struct work_struct recalc_smps;
757
Johannes Berg64592c82010-06-10 10:21:31 +0200758 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200759 struct sk_buff_head skb_queue;
760
Johannes Berg04ecd252012-09-11 14:34:12 +0200761 u8 needed_rx_chains;
762 enum ieee80211_smps_mode smps_mode;
763
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200764 int user_power_level; /* in dBm */
765 int ap_power_level; /* in dBm */
766
Simon Wunderlich164eb022013-02-08 18:16:20 +0100767 bool radar_required;
768 struct delayed_work dfs_cac_timer_work;
769
Johannes Berg3e122be2008-07-09 14:40:34 +0200770 /*
771 * AP this belongs to: self in AP mode and
772 * corresponding AP in VLAN mode, NULL for
773 * all others (might be needed later in IBSS)
774 */
775 struct ieee80211_if_ap *bss;
776
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200777 /* bitmap of allowed (non-MCS) rate indexes for rate control */
778 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200779
780 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100781 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700782
783 union {
784 struct ieee80211_if_ap ap;
785 struct ieee80211_if_wds wds;
786 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100787 struct ieee80211_if_managed mgd;
788 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200789 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100790 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700791 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700792
793#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300794 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700795 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100796 struct dentry *default_unicast_key;
797 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200798 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100799 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700800#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100801
Johannes Berg32bfd352007-12-19 01:31:26 +0100802 /* must be last, dynamically sized area in this! */
803 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700804};
805
Johannes Berg32bfd352007-12-19 01:31:26 +0100806static inline
807struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
808{
809 return container_of(p, struct ieee80211_sub_if_data, vif);
810}
811
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200812static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
813 __acquires(&sdata->wdev.mtx)
814{
815 mutex_lock(&sdata->wdev.mtx);
816 __acquire(&sdata->wdev.mtx);
817}
818
819static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
820 __releases(&sdata->wdev.mtx)
821{
822 mutex_unlock(&sdata->wdev.mtx);
823 __release(&sdata->wdev.mtx);
824}
825
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100826#define sdata_dereference(p, sdata) \
827 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
828
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200829static inline void
830sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
831{
832 lockdep_assert_held(&sdata->wdev.mtx);
833}
834
Johannes Berg55de9082012-07-26 17:24:39 +0200835static inline enum ieee80211_band
836ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
837{
838 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
839 struct ieee80211_chanctx_conf *chanctx_conf;
840
841 rcu_read_lock();
842 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
843 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100844 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200845 rcu_read_unlock();
846
847 return band;
848}
849
Simon Wunderlich438b61b2013-07-08 16:55:51 +0200850static inline int
851ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
852{
853 switch (chandef->width) {
854 case NL80211_CHAN_WIDTH_5:
855 return 2;
856 case NL80211_CHAN_WIDTH_10:
857 return 1;
858 default:
859 return 0;
860 }
861}
862
863static inline int
864ieee80211_vif_get_shift(struct ieee80211_vif *vif)
865{
866 struct ieee80211_chanctx_conf *chanctx_conf;
867 int shift = 0;
868
869 rcu_read_lock();
870 chanctx_conf = rcu_dereference(vif->chanctx_conf);
871 if (chanctx_conf)
872 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
873 rcu_read_unlock();
874
875 return shift;
876}
877
Johannes Bergc1475ca2010-06-10 10:21:37 +0200878enum sdata_queue_type {
879 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
880 IEEE80211_SDATA_QUEUE_AGG_START = 1,
881 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
882};
883
Jiri Bencf0706e82007-05-05 11:45:53 -0700884enum {
885 IEEE80211_RX_MSG = 1,
886 IEEE80211_TX_STATUS_MSG = 2,
887};
888
Kalle Valoce7c9112008-12-18 23:35:20 +0200889enum queue_stop_reason {
890 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200891 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100892 IEEE80211_QUEUE_STOP_REASON_CSA,
893 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100894 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200895 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600896 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +0100897 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Kalle Valoce7c9112008-12-18 23:35:20 +0200898};
899
Luciano Coelho65a65382010-12-21 16:02:17 +0200900#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100901struct tpt_led_trigger {
902 struct led_trigger trig;
903 char name[32];
904 const struct ieee80211_tpt_blink *blink_table;
905 unsigned int blink_table_len;
906 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100907 unsigned long prev_traffic;
908 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100909 unsigned int active, want;
910 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100911};
Luciano Coelho65a65382010-12-21 16:02:17 +0200912#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100913
Matti Gottliebad38bfc2013-11-18 19:06:45 +0200914/*
915 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges
916 *
917 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a
918 * certain latency range (in Milliseconds). Each station that uses these
919 * ranges will have bins to count the amount of frames received in that range.
920 * The user can configure the ranges via debugfs.
921 * If ranges is NULL then Tx latency statistics bins are disabled for all
922 * stations.
923 *
924 * @n_ranges: number of ranges that are taken in account
925 * @ranges: the ranges that the user requested or NULL if disabled.
926 */
927struct ieee80211_tx_latency_bin_ranges {
928 int n_ranges;
929 u32 ranges[];
930};
931
Helmut Schaa142b9f52009-07-23 13:18:01 +0200932/**
933 * mac80211 scan flags - currently active scan mode
934 *
935 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
936 * well be on the operating channel
937 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
938 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700939 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
940 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200941 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
942 * that the scan completed.
943 * @SCAN_ABORTED: Set for our scan work function when the driver reported
944 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +0300945 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
946 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200947 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200948enum {
949 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200950 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700951 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200952 SCAN_COMPLETED,
953 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +0300954 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200955};
956
957/**
958 * enum mac80211_scan_state - scan state machine states
959 *
960 * @SCAN_DECISION: Main entry point to the scan state machine, this state
961 * determines if we should keep on scanning or switch back to the
962 * operating channel
963 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
964 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100965 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
966 * send out data
967 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -0700968 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200969 */
970enum mac80211_scan_state {
971 SCAN_DECISION,
972 SCAN_SET_CHANNEL,
973 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100974 SCAN_SUSPEND,
975 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -0700976 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200977};
978
Jiri Bencf0706e82007-05-05 11:45:53 -0700979struct ieee80211_local {
980 /* embed the driver visible part.
981 * don't cast (use the static inlines below), but we keep
982 * it first anyway so they become a no-op */
983 struct ieee80211_hw hw;
984
985 const struct ieee80211_ops *ops;
986
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400987 /*
988 * private workqueue to mac80211. mac80211 makes this accessible
989 * via ieee80211_queue_work()
990 */
991 struct workqueue_struct *workqueue;
992
Johannes Berge4e72fb2009-03-23 17:28:42 +0100993 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100994 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200995 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100996
Jiri Bencf0706e82007-05-05 11:45:53 -0700997 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100998 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100999 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001000 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1001 fif_probe_req;
1002 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001003 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001004
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001005 bool wiphy_ciphers_allocated;
1006
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001007 bool use_chanctx;
1008
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001009 /* protects the aggregated multicast list and filter calls */
1010 spinlock_t filter_lock;
1011
Johannes Berg3ac64be2009-08-17 16:16:53 +02001012 /* used for uploading changed mc list */
1013 struct work_struct reconfig_filter;
1014
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001015 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001016 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001017
Johannes Bergd0709a62008-02-25 16:27:46 +01001018 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001019
1020 /*
1021 * suspended is true if we finished all the suspend _and_ we have
1022 * not yet come up from resume. This is to be used by mac80211
1023 * to ensure driver sanity during suspend and mac80211's own
1024 * sanity. It can eventually be used for WoW as well.
1025 */
1026 bool suspended;
1027
1028 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001029 * Resuming is true while suspended, but when we're reprogramming the
1030 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1031 * again even though some other parts of the stack are still suspended
1032 * and we still drop received frames to avoid waking the stack.
1033 */
1034 bool resuming;
1035
1036 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001037 * quiescing is true during the suspend process _only_ to
1038 * ease timer cancelling etc.
1039 */
1040 bool quiescing;
1041
Johannes Bergea77f122009-08-21 14:44:45 +02001042 /* device is started */
1043 bool started;
1044
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001045 /* device is during a HW reconfig */
1046 bool in_reconfig;
1047
Johannes Bergeecc4802011-05-04 15:37:29 +02001048 /* wowlan is enabled -- don't reconfig on resume */
1049 bool wowlan;
1050
Simon Wunderlich164eb022013-02-08 18:16:20 +01001051 /* DFS/radar detection is enabled */
1052 bool radar_detect_enabled;
1053 struct work_struct radar_detected_work;
1054
Johannes Berg04ecd252012-09-11 14:34:12 +02001055 /* number of RX chains the hardware has */
1056 u8 rx_chains;
1057
Johannes Bergb306f452007-07-10 19:32:08 +02001058 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001059
Jiri Bencf0706e82007-05-05 11:45:53 -07001060 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1061 * added to skb_queue will be processed, but frames in
1062 * skb_queue_unreliable may be dropped if the total length of these
1063 * queues increases over the limit. */
1064#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1065 struct tasklet_struct tasklet;
1066 struct sk_buff_head skb_queue;
1067 struct sk_buff_head skb_queue_unreliable;
1068
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001069 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001070
Johannes Bergd0709a62008-02-25 16:27:46 +01001071 /* Station data */
1072 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001073 * The mutex only protects the list, hash table and
1074 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001075 */
Johannes Berg34e89502010-02-03 13:59:58 +01001076 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001077 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001078 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001079 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +02001080 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -07001081 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001082 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001083
Matti Gottliebad38bfc2013-11-18 19:06:45 +02001084 /*
1085 * Tx latency statistics parameters for all stations.
1086 * Can enable via debugfs (NULL when disabled).
1087 */
1088 struct ieee80211_tx_latency_bin_ranges __rcu *tx_latency;
1089
Johannes Berg2a577d92009-03-23 17:28:37 +01001090 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001091 struct tasklet_struct tx_pending_tasklet;
1092
Johannes Berga6a67db2010-06-10 10:21:41 +02001093 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001094
Johannes Berg53918992007-09-26 15:19:47 +02001095 /* number of interfaces with corresponding IFF_ flags */
1096 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -07001097
1098 struct rate_control_ref *rate_ctrl;
1099
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001100 struct crypto_cipher *wep_tx_tfm;
1101 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001102 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001103
Johannes Bergc771c9d2009-01-23 22:54:03 +01001104 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001105 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001106 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001107
Johannes Bergb16bd152008-04-11 21:40:35 +02001108 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001109 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001110 * key pointers (write access, they're RCU.)
1111 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001112 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001113
Johannes Berga1699b72010-07-30 16:46:07 +02001114 /* mutex for scan and work locking */
1115 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001116
Johannes Bergc2b13452008-09-11 00:01:55 +02001117 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001118 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001119 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001120 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001121 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001122 struct cfg80211_chan_def scan_chandef;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001123 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001124 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001125 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001126 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001127
Luciano Coelho85a99942011-05-12 16:28:29 +03001128 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001129 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
David Spinadeld43c6b62013-12-08 21:48:57 +02001130 struct cfg80211_sched_scan_request *sched_scan_req;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001131
Helmut Schaadf13cce2010-02-24 14:19:21 +01001132 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001133 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001134 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001135 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001136 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001137 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001138
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001139 /* Temporary remain-on-channel for off-channel operations */
1140 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001141
Michal Kaziord01a1e62012-06-26 14:37:16 +02001142 /* channel contexts */
1143 struct list_head chanctx_list;
1144 struct mutex chanctx_mtx;
1145
Jiri Bencf0706e82007-05-05 11:45:53 -07001146 /* SNMP counters */
1147 /* dot11CountersTable */
1148 u32 dot11TransmittedFragmentCount;
1149 u32 dot11MulticastTransmittedFrameCount;
1150 u32 dot11FailedCount;
1151 u32 dot11RetryCount;
1152 u32 dot11MultipleRetryCount;
1153 u32 dot11FrameDuplicateCount;
1154 u32 dot11ReceivedFragmentCount;
1155 u32 dot11MulticastReceivedFrameCount;
1156 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001157
1158#ifdef CONFIG_MAC80211_LEDS
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001159 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001160 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001161 char tx_led_name[32], rx_led_name[32],
1162 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001163#endif
1164
Jiri Bencf0706e82007-05-05 11:45:53 -07001165#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1166 /* TX/RX handler statistics */
1167 unsigned int tx_handlers_drop;
1168 unsigned int tx_handlers_queued;
1169 unsigned int tx_handlers_drop_unencrypted;
1170 unsigned int tx_handlers_drop_fragment;
1171 unsigned int tx_handlers_drop_wep;
1172 unsigned int tx_handlers_drop_not_assoc;
1173 unsigned int tx_handlers_drop_unauth_port;
1174 unsigned int rx_handlers_drop;
1175 unsigned int rx_handlers_queued;
1176 unsigned int rx_handlers_drop_nullfunc;
1177 unsigned int rx_handlers_drop_defrag;
1178 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001179 unsigned int tx_expand_skb_head;
1180 unsigned int tx_expand_skb_head_cloned;
1181 unsigned int rx_expand_skb_head;
1182 unsigned int rx_expand_skb_head2;
1183 unsigned int rx_handlers_fragments;
1184 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001185#define I802_DEBUG_INC(c) (c)++
1186#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1187#define I802_DEBUG_INC(c) do { } while (0)
1188#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1189
1190
Jiri Bencf0706e82007-05-05 11:45:53 -07001191 int total_ps_buffered; /* total number of all buffered unicast and
1192 * multicast packets for power saving stations
1193 */
Kalle Valo520eb822008-12-18 23:35:27 +02001194
Kalle Valo572e0012009-02-10 17:09:31 +02001195 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001196 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001197 /*
1198 * PS can only be enabled when we have exactly one managed
1199 * interface (and monitors) in PS, this then points there.
1200 */
1201 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001202 struct work_struct dynamic_ps_enable_work;
1203 struct work_struct dynamic_ps_disable_work;
1204 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001205 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001206 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001207 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001208
Juuso Oikarinenff616382010-06-09 09:51:52 +03001209 /*
1210 * The dynamic ps timeout configured from user space via WEXT -
1211 * this will override whatever chosen by mac80211 internally.
1212 */
1213 int dynamic_ps_forced_timeout;
1214
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001215 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001216
Johannes Berg0f782312009-12-01 13:37:02 +01001217 enum ieee80211_smps_mode smps_mode;
1218
Johannes Bergf2753dd2009-04-14 10:09:24 +02001219 struct work_struct restart_work;
1220
Jiri Bence9f207f2007-05-05 11:46:38 -07001221#ifdef CONFIG_MAC80211_DEBUGFS
1222 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001223 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001224 struct dentry *keys;
1225 } debugfs;
1226#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001227
Johannes Berg2eb278e2012-06-05 14:28:42 +02001228 /*
1229 * Remain-on-channel support
1230 */
1231 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001232 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001233 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001234 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001235
Johannes Berga729cff2011-11-06 14:13:34 +01001236 struct idr ack_status_frames;
1237 spinlock_t ack_status_lock;
1238
Johannes Bergf142c6b2012-06-18 20:07:15 +02001239 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1240
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001241 /* virtual monitor interface */
1242 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001243 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001244};
1245
Johannes Berg3e122be2008-07-09 14:40:34 +02001246static inline struct ieee80211_sub_if_data *
1247IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1248{
Johannes Berg3e122be2008-07-09 14:40:34 +02001249 return netdev_priv(dev);
1250}
1251
Johannes Berg71bbc992012-06-15 15:30:18 +02001252static inline struct ieee80211_sub_if_data *
1253IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1254{
1255 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1256}
1257
Johannes Bergc1475ca2010-06-10 10:21:37 +02001258/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001259struct ieee80211_ra_tid {
1260 u8 ra[ETH_ALEN];
1261 u16 tid;
1262};
1263
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001264/* this struct holds the value parsing from channel switch IE */
1265struct ieee80211_csa_ie {
1266 struct cfg80211_chan_def chandef;
1267 u8 mode;
1268 u8 count;
1269 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001270 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001271};
1272
Johannes Bergdd769862011-11-18 16:54:50 +01001273/* Parsed Information Elements */
1274struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001275 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001276 size_t total_len;
1277
1278 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001279 const u8 *ssid;
1280 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001281 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001282 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001283 const u8 *challenge;
1284 const u8 *rsn;
1285 const u8 *erp_info;
1286 const u8 *ext_supp_rates;
1287 const u8 *wmm_info;
1288 const u8 *wmm_param;
1289 const struct ieee80211_ht_cap *ht_cap_elem;
1290 const struct ieee80211_ht_operation *ht_operation;
1291 const struct ieee80211_vht_cap *vht_cap_elem;
1292 const struct ieee80211_vht_operation *vht_operation;
1293 const struct ieee80211_meshconf_ie *mesh_config;
1294 const u8 *mesh_id;
1295 const u8 *peering;
1296 const __le16 *awake_window;
1297 const u8 *preq;
1298 const u8 *prep;
1299 const u8 *perr;
1300 const struct ieee80211_rann_ie *rann;
1301 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001302 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001303 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001304 const u8 *country_elem;
1305 const u8 *pwr_constr_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001306 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001307 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001308 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001309 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001310
1311 /* length of them, respectively */
1312 u8 ssid_len;
1313 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001314 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001315 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001316 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001317 u8 ext_supp_rates_len;
1318 u8 wmm_info_len;
1319 u8 wmm_param_len;
1320 u8 mesh_id_len;
1321 u8 peering_len;
1322 u8 preq_len;
1323 u8 prep_len;
1324 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001325 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001326
1327 /* whether a parse error occurred while retrieving these elements */
1328 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001329};
1330
Jiri Bencf0706e82007-05-05 11:45:53 -07001331static inline struct ieee80211_local *hw_to_local(
1332 struct ieee80211_hw *hw)
1333{
1334 return container_of(hw, struct ieee80211_local, hw);
1335}
1336
Jiri Bencf0706e82007-05-05 11:45:53 -07001337
Johannes Berg571ecf62007-07-27 15:43:22 +02001338static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1339{
Joe Perchesb203ca32012-05-08 18:56:52 +00001340 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001341 is_broadcast_ether_addr(raddr);
1342}
1343
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001344static inline bool
1345ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1346{
1347 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1348 status->flag & RX_FLAG_MACTIME_END);
1349 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1350}
Johannes Berg571ecf62007-07-27 15:43:22 +02001351
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001352u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1353 struct ieee80211_rx_status *status,
1354 unsigned int mpdu_len,
1355 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001356int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001357void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001358void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1359 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001360void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001361u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001362
Johannes Berg46900292009-02-15 12:44:28 +01001363/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001364void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001365int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1366 struct cfg80211_auth_request *req);
1367int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1368 struct cfg80211_assoc_request *req);
1369int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001370 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001371int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001372 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001373void ieee80211_send_pspoll(struct ieee80211_local *local,
1374 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001375void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001376void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001377int ieee80211_max_network_latency(struct notifier_block *nb,
1378 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001379int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001380void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1381void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1382 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001383void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001384void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001385void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001386void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1387 __le16 fc, bool acked);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001388void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001389
Johannes Berg46900292009-02-15 12:44:28 +01001390/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001391void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1392void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001393void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1394 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001395int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1396 struct cfg80211_ibss_params *params);
1397int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001398void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1399void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1400 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001401int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1402 struct cfg80211_csa_settings *csa_settings);
1403int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1404void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001405
1406/* mesh code */
1407void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1408void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1409 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001410int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1411 struct cfg80211_csa_settings *csa_settings,
1412 bool csa_action);
1413int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001414
Johannes Berg9c6bd792008-09-11 00:01:52 +02001415/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001416void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001417int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1418 const u8 *ssid, u8 ssid_len,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001419 struct ieee80211_channel *chan,
1420 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001421int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001422 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001423void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001424void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001425void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001426
Johannes Berg0a51b272008-09-08 17:44:25 +02001427void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001428struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001429ieee80211_bss_info_update(struct ieee80211_local *local,
1430 struct ieee80211_rx_status *rx_status,
1431 struct ieee80211_mgmt *mgmt,
1432 size_t len,
1433 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001434 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001435void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001436 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001437
Luciano Coelho79f460c2011-05-11 17:09:36 +03001438/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001439int
1440__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1441 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001442int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1443 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001444int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1445void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001446
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001447/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001448void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1449void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001450void ieee80211_roc_setup(struct ieee80211_local *local);
1451void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001452void ieee80211_roc_purge(struct ieee80211_local *local,
1453 struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001454void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001455void ieee80211_sw_roc_work(struct work_struct *work);
1456void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001457
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001458/* channel switch handling */
1459void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001460int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1461 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001462
Johannes Berg3e122be2008-07-09 14:40:34 +02001463/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001464int ieee80211_iface_init(void);
1465void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001466int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001467 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001468 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001469int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001470 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001471void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001472void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001473u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001474void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001475void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1476 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001477int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1478void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001479int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1480void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001481
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001482bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1483void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1484
Johannes Berg9607e6b2009-12-23 13:15:31 +01001485static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1486{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001487 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001488}
1489
Johannes Berge2ebc742007-07-27 15:43:22 +02001490/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001491void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1492void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001493netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1494 struct net_device *dev);
1495netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1496 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001497void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1498 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001499
Johannes Bergde1ede72008-09-09 14:42:50 +02001500/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001501void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1502 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001503bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001504 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001505 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001506 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001507void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1508 const u8 *da, u16 tid,
1509 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001510int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1511 enum ieee80211_smps_mode smps, const u8 *da,
1512 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001513void ieee80211_request_smps_ap_work(struct work_struct *work);
1514void ieee80211_request_smps_mgd_work(struct work_struct *work);
1515bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1516 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001517
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001518void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001519 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001520void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001521 u16 initiator, u16 reason, bool stop);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001522void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1523 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001524void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1525 struct sta_info *sta,
1526 struct ieee80211_mgmt *mgmt, size_t len);
1527void ieee80211_process_addba_resp(struct ieee80211_local *local,
1528 struct sta_info *sta,
1529 struct ieee80211_mgmt *mgmt,
1530 size_t len);
1531void ieee80211_process_addba_request(struct ieee80211_local *local,
1532 struct sta_info *sta,
1533 struct ieee80211_mgmt *mgmt,
1534 size_t len);
1535
Johannes Berg849b7962009-02-10 21:25:54 +01001536int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001537 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001538int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001539 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001540void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1541void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001542void ieee80211_ba_session_work(struct work_struct *work);
1543void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001544void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001545
Johannes Berg04ecd252012-09-11 14:34:12 +02001546u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1547
Mahesh Palivela818255e2012-10-10 11:33:04 +00001548/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001549void
1550ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1551 struct ieee80211_supported_band *sband,
1552 const struct ieee80211_vht_cap *vht_cap_ie,
1553 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001554enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001555void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Johannes Berg0af83d32012-12-27 18:55:36 +01001556void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1557 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001558 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001559void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1560 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001561
Johannes Berg39192c02008-09-09 14:49:03 +02001562/* Spectrum management */
1563void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1564 struct ieee80211_mgmt *mgmt,
1565 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001566/**
1567 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1568 * @sdata: the sdata of the interface which has received the frame
1569 * @elems: parsed 802.11 elements received with the frame
1570 * @beacon: indicates if the frame was a beacon or probe response
1571 * @current_band: indicates the current band
1572 * @sta_flags: contains information about own capabilities and restrictions
1573 * to decide which channel switch announcements can be accepted. Only the
1574 * following subset of &enum ieee80211_sta_flags are evaluated:
1575 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1576 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1577 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001578 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001579 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1580 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001581 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1582 */
1583int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1584 struct ieee802_11_elems *elems, bool beacon,
1585 enum ieee80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001586 u32 sta_flags, u8 *bssid,
1587 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001588
Johannes Bergf2753dd2009-04-14 10:09:24 +02001589/* Suspend/resume and hw reconfiguration */
1590int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001591void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001592
Johannes Bergeecc4802011-05-04 15:37:29 +02001593int __ieee80211_suspend(struct ieee80211_hw *hw,
1594 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001595
1596static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1597{
John W. Linville85f72bc2010-09-01 16:12:28 -04001598 struct ieee80211_local *local = hw_to_local(hw);
1599
1600 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1601 "%s: resume with hardware scan still in progress\n",
1602 wiphy_name(hw->wiphy));
1603
Johannes Bergf2753dd2009-04-14 10:09:24 +02001604 return ieee80211_reconfig(hw_to_local(hw));
1605}
Bob Copeland665af4f2009-01-19 11:20:53 -05001606
Johannes Bergc2d15602007-07-27 15:43:23 +02001607/* utility functions/constants */
1608extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001609u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001610 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001611int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001612 int rate, int erp, int short_preamble,
1613 int shift);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001614void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001615 struct ieee80211_hdr *hdr, const u8 *tsc,
1616 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001617void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1618 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001619void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1620 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001621
Johannes Berg55de9082012-07-26 17:24:39 +02001622void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1623 struct sk_buff *skb, int tid,
1624 enum ieee80211_band band);
1625
1626static inline void
1627ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1628 struct sk_buff *skb, int tid,
1629 enum ieee80211_band band)
1630{
1631 rcu_read_lock();
1632 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1633 rcu_read_unlock();
1634}
1635
1636static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1637 struct sk_buff *skb, int tid)
1638{
1639 struct ieee80211_chanctx_conf *chanctx_conf;
1640
1641 rcu_read_lock();
1642 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1643 if (WARN_ON(!chanctx_conf)) {
1644 rcu_read_unlock();
1645 kfree_skb(skb);
1646 return;
1647 }
1648
1649 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001650 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001651 rcu_read_unlock();
1652}
1653
1654static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001655 struct sk_buff *skb)
1656{
1657 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1658 ieee80211_tx_skb_tid(sdata, skb, 7);
1659}
1660
Johannes Berg35d865a2013-05-28 10:54:03 +02001661u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001662 struct ieee802_11_elems *elems,
1663 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001664static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1665 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001666 struct ieee802_11_elems *elems)
1667{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001668 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001669}
1670
Kalle Valo520eb822008-12-18 23:35:27 +02001671void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1672void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1673void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001674void ieee80211_send_nullfunc(struct ieee80211_local *local,
1675 struct ieee80211_sub_if_data *sdata,
1676 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001677void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1678 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001679void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001680 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001681
Kalle Valoce7c9112008-12-18 23:35:20 +02001682void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001683 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001684 enum queue_stop_reason reason);
1685void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001686 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001687 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001688void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1689 enum queue_stop_reason reason);
1690void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1691 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001692void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001693void ieee80211_add_pending_skb(struct ieee80211_local *local,
1694 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001695void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1696 struct sk_buff_head *skbs,
1697 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001698static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1699 struct sk_buff_head *skbs)
1700{
1701 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1702}
Johannes Berg39ecc012013-02-13 12:11:00 +01001703void ieee80211_flush_queues(struct ieee80211_local *local,
1704 struct ieee80211_sub_if_data *sdata);
Kalle Valoce7c9112008-12-18 23:35:20 +02001705
Johannes Berg46900292009-02-15 12:44:28 +01001706void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001707 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001708 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001709 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1710 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001711void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1712 const u8 *bssid, u16 stype, u16 reason,
1713 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001714int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Bergc604b9f2012-11-29 12:45:18 +01001715 size_t buffer_len, const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001716 enum ieee80211_band band, u32 rate_mask,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001717 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001718struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001719 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001720 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001721 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001722 const u8 *ie, size_t ie_len,
1723 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001724void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001725 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001726 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001727 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001728 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001729
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001730u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01001731 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001732 enum ieee80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001733int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1734 enum ieee80211_smps_mode smps_mode);
1735int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1736 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001737void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02001738void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001739
Johannes Berg8e664fb2009-12-23 13:15:38 +01001740size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1741 const u8 *ids, int n_ids, size_t offset);
1742size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001743u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001744 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001745u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001746 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001747 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001748u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1749 u32 cap);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001750int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1751 const struct ieee80211_supported_band *sband,
1752 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001753int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001754 struct sk_buff *skb, bool need_basic,
1755 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001756int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001757 struct sk_buff *skb, bool need_basic,
1758 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001759
Johannes Bergf444de02010-05-05 15:25:02 +02001760/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001761void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001762 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001763 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001764u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02001765
Michal Kaziord01a1e62012-06-26 14:37:16 +02001766int __must_check
1767ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001768 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001769 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001770int __must_check
1771ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1772 const struct cfg80211_chan_def *chandef,
1773 u32 *changed);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001774/* NOTE: only use ieee80211_vif_change_channel() for channel switch */
1775int __must_check
1776ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001777 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001778void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001779void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001780void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1781 bool clear);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001782
Johannes Berg04ecd252012-09-11 14:34:12 +02001783void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1784 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02001785void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
1786 struct ieee80211_chanctx *ctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001787
1788void ieee80211_dfs_cac_timer(unsigned long data);
1789void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1790void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1791void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07001792int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
1793 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02001794
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001795bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
1796bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
1797const struct ieee80211_cipher_scheme *
1798ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
1799 enum nl80211_iftype iftype);
1800int ieee80211_cs_headroom(struct ieee80211_local *local,
1801 struct cfg80211_crypto_settings *crypto,
1802 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08001803void ieee80211_recalc_dtim(struct ieee80211_local *local,
1804 struct ieee80211_sub_if_data *sdata);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001805
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001806#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001807#define debug_noinline noinline
1808#else
1809#define debug_noinline
1810#endif
1811
Jiri Bencf0706e82007-05-05 11:45:53 -07001812#endif /* IEEE80211_I_H */