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Jiri Bencf0706e82007-05-05 11:45:53 -07001/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
Jouni Malinen026331c2010-02-15 12:53:10 +02005 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
Aviya Erenfeld42bd20d2016-08-29 23:25:16 +03006 * Copyright 2013-2015 Intel Mobile Communications GmbH
Jiri Bencf0706e82007-05-05 11:45:53 -07007 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#ifndef IEEE80211_I_H
14#define IEEE80211_I_H
15
16#include <linux/kernel.h>
17#include <linux/device.h>
18#include <linux/if_ether.h>
19#include <linux/interrupt.h>
20#include <linux/list.h>
21#include <linux/netdevice.h>
22#include <linux/skbuff.h>
23#include <linux/workqueue.h>
24#include <linux/types.h>
25#include <linux/spinlock.h>
Johannes Berg571ecf62007-07-27 15:43:22 +020026#include <linux/etherdevice.h>
Johannes Berge1e54062010-11-30 08:58:45 +010027#include <linux/leds.h>
Johannes Berga729cff2011-11-06 14:13:34 +010028#include <linux/idr.h>
Johannes Berg7bedd0c2015-02-13 21:55:15 +010029#include <linux/rhashtable.h>
Johannes Bergfe7a5d52009-11-18 18:42:47 +010030#include <net/ieee80211_radiotap.h>
colin@cozybit.com93da9cc2008-10-21 12:03:48 -070031#include <net/cfg80211.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070032#include <net/mac80211.h>
Michal Kaziorfa962b92016-05-19 10:37:49 +020033#include <net/fq.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040034#include "key.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070035#include "sta_info.h"
Johannes Bergbdcbd8e2012-06-22 11:29:50 +020036#include "debug.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070037
Johannes Berg3beea352015-10-14 18:36:43 +020038extern const struct cfg80211_ops mac80211_config_ops;
39
Johannes Berg9cfb0002008-04-03 15:17:31 +020040struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070041
42/* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44#define AP_MAX_BC_BUFFER 128
45
46/* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49#define TOTAL_MAX_TX_BUFFER 512
50
51/* Required encryption head and tailroom */
52#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020053#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070054
55/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59#define IEEE80211_FRAGMENT_MAX 4
60
Johannes Berg1ea6f9c2012-10-24 10:59:25 +020061/* power level hasn't been configured (or set to automatic) */
62#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
63
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030064/*
Michal Kazioraa75ebc2015-02-10 12:48:44 +010065 * Some APs experience problems when working with U-APSD. Decreasing the
66 * probability of that happening by using legacy mode for all ACs but VO isn't
67 * enough.
68 *
69 * Cisco 4410N originally forced us to enable VO by default only because it
70 * treated non-VO ACs as legacy.
71 *
72 * However some APs (notably Netgear R7000) silently reclassify packets to
73 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
74 * clients would never see some frames (e.g. ARP responses) or would fetch them
75 * accidentally after a long time.
76 *
77 * It makes little sense to enable u-APSD queues by default because it needs
78 * userspace applications to be aware of it to actually take advantage of the
79 * possible additional powersavings. Implicitly depending on driver autotrigger
80 * frame support doesn't make much sense.
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030081 */
Michal Kazioraa75ebc2015-02-10 12:48:44 +010082#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
Kalle Valoab133152010-01-12 10:42:31 +020083
84#define IEEE80211_DEFAULT_MAX_SP_LEN \
85 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
86
Emmanuel Grumbachf438ceb2016-10-18 23:12:12 +030087extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
88
Antonio Quartulli6ae16772012-09-07 13:28:52 +020089#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
90
Ayala Beker167e33f2016-09-20 17:31:20 +030091#define IEEE80211_MAX_NAN_INSTANCE_ID 255
92
Jiri Bencf0706e82007-05-05 11:45:53 -070093struct ieee80211_fragment_entry {
Jiri Bencf0706e82007-05-05 11:45:53 -070094 struct sk_buff_head skb_list;
Johannes Berg69f13222015-06-26 09:21:01 +020095 unsigned long first_frag_time;
96 u16 seq;
97 u16 extra_len;
98 u16 last_frag;
99 u8 rx_queue;
Johannes Berg9acc54b2016-02-26 22:13:40 +0100100 bool check_sequential_pn; /* needed for CCMP/GCMP */
Jiri Bencf0706e82007-05-05 11:45:53 -0700101 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
102};
103
104
Johannes Bergc2b13452008-09-11 00:01:55 +0200105struct ieee80211_bss {
Johannes Bergef429da2013-02-05 17:48:40 +0100106 u32 device_ts_beacon, device_ts_presp;
Johannes Berg8c358bc2012-05-22 22:13:05 +0200107
Jouni Malinen43ac2ca2008-08-15 22:21:27 +0300108 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +0200109 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +0100110
Jiri Bencf0706e82007-05-05 11:45:53 -0700111#define IEEE80211_MAX_SUPP_RATES 32
112 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
113 size_t supp_rates_len;
Alexander Bondar817cee72013-05-19 14:23:57 +0300114 struct ieee80211_rate *beacon_rate;
Jiri Bencf0706e82007-05-05 11:45:53 -0700115
Johannes Berg00d3f142009-02-10 21:26:00 +0100116 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300117 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200118 * that we can feed ERP info to the driver when handling the
119 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100120 * otherwise, you probably don't want to use them.
121 */
122 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200123 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800124
125 /* Keep track of the corruption of the last beacon/probe response. */
126 u8 corrupt_data;
127
128 /* Keep track of what bits of information we have valid info for. */
129 u8 valid_data;
130};
131
132/**
133 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
134 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
135 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
136 *
137 * These are bss flags that are attached to a bss in the
138 * @corrupt_data field of &struct ieee80211_bss.
139 */
140enum ieee80211_bss_corrupt_data_flags {
141 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
142 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
143};
144
145/**
146 * enum ieee80211_valid_data_flags - BSS valid data flags
Paul Stewartfcff4f12012-02-23 17:59:53 -0800147 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
148 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
149 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
150 *
151 * These are bss flags that are attached to a bss in the
152 * @valid_data field of &struct ieee80211_bss. They show which parts
Stephen Hemmingerd070f912014-10-29 22:55:58 -0700153 * of the data structure were received as a result of an un-corrupted
Paul Stewartfcff4f12012-02-23 17:59:53 -0800154 * beacon/probe response.
155 */
156enum ieee80211_bss_valid_data_flags {
Paul Stewartfcff4f12012-02-23 17:59:53 -0800157 IEEE80211_BSS_VALID_WMM = BIT(1),
158 IEEE80211_BSS_VALID_RATES = BIT(2),
159 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700160};
161
Johannes Berg9ae54c82008-01-31 19:48:20 +0100162typedef unsigned __bitwise__ ieee80211_tx_result;
163#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
164#define TX_DROP ((__force ieee80211_tx_result) 1u)
165#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
166
Johannes Berg5cf121c2008-02-25 16:27:43 +0100167#define IEEE80211_TX_UNICAST BIT(1)
168#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100169
Johannes Berg5cf121c2008-02-25 16:27:43 +0100170struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700171 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100172 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700173 struct ieee80211_local *local;
174 struct ieee80211_sub_if_data *sdata;
175 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700176 struct ieee80211_key *key;
Felix Fietkau0d528d82013-04-22 16:14:41 +0200177 struct ieee80211_tx_rate rate;
Jiri Bencf0706e82007-05-05 11:45:53 -0700178
Johannes Berg056cdd52008-03-26 23:21:47 +0100179 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100180};
181
182
183typedef unsigned __bitwise__ ieee80211_rx_result;
184#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
185#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
186#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
187#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
188
Johannes Berg554891e2010-09-24 12:38:25 +0200189/**
190 * enum ieee80211_packet_rx_flags - packet RX flags
Johannes Berg554891e2010-09-24 12:38:25 +0200191 * @IEEE80211_RX_AMSDU: a-MSDU packet
192 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100193 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200194 *
195 * These are per-frame flags that are attached to a frame in the
196 * @rx_flags field of &struct ieee80211_rx_status.
197 */
198enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200199 IEEE80211_RX_AMSDU = BIT(3),
200 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100201 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200202};
203
204/**
205 * enum ieee80211_rx_flags - RX data flags
206 *
207 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100208 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
209 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200210 *
211 * These flags are used across handling multiple interfaces
212 * for a single frame.
213 */
214enum ieee80211_rx_flags {
215 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100216 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200217};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100218
219struct ieee80211_rx_data {
Johannes Bergaf9f9b22015-06-11 16:02:32 +0200220 struct napi_struct *napi;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100221 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100222 struct ieee80211_local *local;
223 struct ieee80211_sub_if_data *sdata;
224 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100225 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100226
Johannes Berg056cdd52008-03-26 23:21:47 +0100227 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200228
229 /*
230 * Index into sequence numbers array, 0..16
231 * since the last (16) is used for non-QoS,
232 * will be 16 on non-QoS frames.
233 */
234 int seqno_idx;
235
236 /*
237 * Index into the security IV/PN arrays, 0..16
238 * since the last (16) is used for CCMP-encrypted
239 * management frames, will be set to 16 on mgmt
240 * frames and 0 on non-QoS frames.
241 */
242 int security_idx;
243
Johannes Berg5cf121c2008-02-25 16:27:43 +0100244 u32 tkip_iv32;
245 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700246};
247
Michal Kazioraf296bd2014-06-05 14:21:36 +0200248struct ieee80211_csa_settings {
249 const u16 *counter_offsets_beacon;
250 const u16 *counter_offsets_presp;
251
252 int n_counter_offsets_beacon;
253 int n_counter_offsets_presp;
254
255 u8 count;
256};
257
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100258struct beacon_data {
259 u8 *head, *tail;
260 int head_len, tail_len;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800261 struct ieee80211_meshconf_ie *meshconf;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200262 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
263 u8 csa_current_counter;
Johannes Berg88600202012-02-13 15:17:18 +0100264 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100265};
266
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300267struct probe_resp {
268 struct rcu_head rcu_head;
269 int len;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200270 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300271 u8 data[0];
272};
273
Marco Porschd012a602012-10-10 12:39:50 -0700274struct ps_data {
275 /* yes, this looks ugly, but guarantees that we can later use
276 * bitmap_empty :)
277 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Joe Perches5fe2bb82013-12-18 16:52:17 -0800278 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
279 __aligned(__alignof__(unsigned long));
Marco Porschd012a602012-10-10 12:39:50 -0700280 struct sk_buff_head bc_buf;
281 atomic_t num_sta_ps; /* number of stations in PS mode */
282 int dtim_count;
283 bool dtim_bc_mc;
284};
285
Jiri Bencf0706e82007-05-05 11:45:53 -0700286struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200287 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300288 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700289
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200290 /* to be used after channel switch. */
291 struct cfg80211_beacon_data *next_beacon;
Michal Kazior4e141da2014-03-05 13:14:08 +0100292 struct list_head vlans; /* write-protected with RTNL and local->mtx */
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400293
Marco Porschd012a602012-10-10 12:39:50 -0700294 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200295 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300296 enum ieee80211_smps_mode req_smps, /* requested smps mode */
297 driver_smps_mode; /* smps mode request */
298
299 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700300};
301
302struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700303 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100304 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700305};
306
307struct ieee80211_if_vlan {
Michal Kazior4e141da2014-03-05 13:14:08 +0100308 struct list_head list; /* write-protected with RTNL and local->mtx */
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100309
310 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200311 struct sta_info __rcu *sta;
Michael Braun72f15d52016-10-10 19:12:21 +0200312 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Jiri Bencf0706e82007-05-05 11:45:53 -0700313};
314
Luis Carlos Coboee385852008-02-23 15:17:11 +0100315struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700316 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
317 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
318 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100319 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
320 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700321 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100322};
323
324#define PREQ_Q_F_START 0x1
325#define PREQ_Q_F_REFRESH 0x2
326struct mesh_preq_queue {
327 struct list_head list;
328 u8 dst[ETH_ALEN];
329 u8 flags;
330};
331
Johannes Berg2eb278e2012-06-05 14:28:42 +0200332struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200333 struct list_head list;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100334
335 struct ieee80211_sub_if_data *sdata;
336
Johannes Bergf679f652009-12-23 13:15:34 +0100337 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100338
Johannes Berg2eb278e2012-06-05 14:28:42 +0200339 bool started, abort, hw_begun, notified;
Johannes Bergb4b177a2014-05-14 15:34:41 +0200340 bool on_channel;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200341
Johannes Bergaaa016c2015-11-23 23:53:51 +0100342 unsigned long start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100343
Johannes Berg2eb278e2012-06-05 14:28:42 +0200344 u32 duration, req_duration;
345 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200346 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200347 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200348};
349
Johannes Berg46900292009-02-15 12:44:28 +0100350/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200351enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200352 IEEE80211_STA_CONNECTION_POLL = BIT(1),
353 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100354 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200355 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200356 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530357 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700358 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200359 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000360 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100361 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
362 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200363 IEEE80211_STA_DISABLE_WMM = BIT(14),
Assaf Krausscd2f5dd2014-09-03 15:25:02 +0300364 IEEE80211_STA_ENABLE_RRM = BIT(15),
Johannes Bergab1faea2009-07-01 21:41:17 +0200365};
366
Johannes Berg66e67e42012-01-20 13:55:27 +0100367struct ieee80211_mgd_auth_data {
368 struct cfg80211_bss *bss;
369 unsigned long timeout;
370 int tries;
371 u16 algorithm, expected_transaction;
372
373 u8 key[WLAN_KEY_LEN_WEP104];
374 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100375 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100376 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100377
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300378 u16 sae_trans, sae_status;
379 size_t data_len;
380 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100381};
382
383struct ieee80211_mgd_assoc_data {
384 struct cfg80211_bss *bss;
385 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100386
387 unsigned long timeout;
388 int tries;
389
390 u16 capability;
391 u8 prev_bssid[ETH_ALEN];
392 u8 ssid[IEEE80211_MAX_SSID_LEN];
393 u8 ssid_len;
394 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100395 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300396 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100397 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100398 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100399
Johannes Berg9dde6422012-05-16 23:43:19 +0200400 u8 ap_ht_param;
401
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100402 struct ieee80211_vht_cap ap_vht_cap;
403
Johannes Berg66e67e42012-01-20 13:55:27 +0100404 size_t ie_len;
405 u8 ie[];
406};
407
Johannes Berg02219b32014-10-07 10:38:50 +0300408struct ieee80211_sta_tx_tspec {
409 /* timestamp of the first packet in the time slice */
410 unsigned long time_slice_start;
411
412 u32 admitted_time; /* in usecs, unlike over the air */
413 u8 tsid;
414 s8 up; /* signed to be able to invalidate with -1 during teardown */
415
416 /* consumed TX time in microseconds in the time slice */
417 u32 consumed_tx_time;
418 enum {
419 TX_TSPEC_ACTION_NONE = 0,
420 TX_TSPEC_ACTION_DOWNGRADE,
421 TX_TSPEC_ACTION_STOP_DOWNGRADE,
422 } action;
423 bool downgraded;
424};
425
Johannes Berg338c17a2015-08-28 10:52:54 +0200426DECLARE_EWMA(beacon_signal, 16, 4)
427
Johannes Berg46900292009-02-15 12:44:28 +0100428struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100429 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200430 struct timer_list conn_mon_timer;
431 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530432 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200433 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530434 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200435 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200436 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100437
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100438 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200439 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300440 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100441 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100442 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200443
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100444 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100445 struct ieee80211_mgd_auth_data *auth_data;
446 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100447
Michael Brauna3e2f4b2016-10-15 13:28:19 +0200448 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Berg46900292009-02-15 12:44:28 +0100449
Jiri Bencf0706e82007-05-05 11:45:53 -0700450 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700451
Johannes Berg965beda2009-04-16 13:17:24 +0200452 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200453 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300454 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200455 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100456 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200457 driver_smps_mode; /* smps mode request */
458
459 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200460
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400461 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700462
Luciano Coelho0c21e632014-10-08 09:48:39 +0300463 bool csa_waiting_bcn;
Johannes Bergf84eaa12015-03-12 08:53:26 +0200464 bool csa_ignored_same_chan;
Luciano Coelho0c21e632014-10-08 09:48:39 +0300465
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300466 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200467 u32 beacon_crc;
468
Johannes Berg1672c0e32013-01-29 15:02:27 +0100469 bool status_acked;
470 bool status_received;
471 __le16 status_fc;
472
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200473 enum {
474 IEEE80211_MFP_DISABLED,
475 IEEE80211_MFP_OPTIONAL,
476 IEEE80211_MFP_REQUIRED
477 } mfp; /* management frame protection */
478
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200479 /*
480 * Bitmask of enabled u-apsd queues,
481 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
482 * to take effect.
483 */
484 unsigned int uapsd_queues;
485
486 /*
487 * Maximum number of buffered frames AP can deliver during a
488 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
489 * Needs a new association to take effect.
490 */
491 unsigned int uapsd_max_sp_len;
492
Jiri Bencf0706e82007-05-05 11:45:53 -0700493 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100494
495 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700496
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100497 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100498
Johannes Berg338c17a2015-08-28 10:52:54 +0200499 struct ewma_beacon_signal ave_beacon_signal;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700500
501 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300502 * Number of Beacon frames used in ave_beacon_signal. This can be used
503 * to avoid generating less reliable cqm events that would be based
504 * only on couple of received frames.
505 */
506 unsigned int count_beacon_signal;
507
Johannes Berg976bd9e2015-10-16 17:18:11 +0200508 /* Number of times beacon loss was invoked. */
509 unsigned int beacon_loss_count;
510
Jouni Malinen391a2002010-08-27 22:22:00 +0300511 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700512 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
513 * that triggered a cqm event. 0 indicates that no event has been
514 * generated for the current association.
515 */
516 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700517
518 /*
519 * State variables for keeping track of RSSI of the AP currently
520 * connected to and informing driver when RSSI has gone
521 * below/above a certain threshold.
522 */
523 int rssi_min_thold, rssi_max_thold;
524 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800525
526 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
527 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100528 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
529 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300530
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200531 /* TDLS support */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300532 u8 tdls_peer[ETH_ALEN] __aligned(2);
533 struct delayed_work tdls_peer_del_work;
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200534 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
535 struct sk_buff *teardown_skb; /* A copy to send through the AP */
536 spinlock_t teardown_lock; /* To lock changing teardown_skb */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +0200537 bool tdls_chan_switch_prohibited;
Arik Nemtsov82c0cc90d2015-08-15 22:39:46 +0300538 bool tdls_wider_bw_prohibited;
Johannes Berg02219b32014-10-07 10:38:50 +0300539
540 /* WMM-AC TSPEC support */
541 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
542 /* Use a separate work struct so that we can do something here
543 * while the sdata->work is flushing the queues, for example.
544 * otherwise, in scenarios where we hardly get any traffic out
545 * on the BE queue, but there's a lot of VO traffic, we might
546 * get stuck in a downgraded situation and flush takes forever.
547 */
548 struct delayed_work tx_tspec_wk;
Jiri Bencf0706e82007-05-05 11:45:53 -0700549};
550
Johannes Berg46900292009-02-15 12:44:28 +0100551struct ieee80211_if_ibss {
552 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200553 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100554
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200555 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200556
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300557 u32 basic_rates;
558
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200559 bool fixed_bssid;
560 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200561 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100562
Antonio Quartulli267335d2012-01-31 20:25:47 +0100563 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200564 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100565
Felix Fietkau4d196e42012-03-01 11:23:37 +0100566 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200567 u8 ssid[IEEE80211_MAX_SSID_LEN];
568 u8 ssid_len, ie_len;
569 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200570 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100571
572 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200573 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100574 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100575
Simon Wunderlich822854b2013-06-28 10:39:59 +0200576 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
577 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
578
Johannes Berg8bf11d82011-12-15 11:17:37 +0100579 spinlock_t incomplete_lock;
580 struct list_head incomplete_stations;
581
Johannes Berg46900292009-02-15 12:44:28 +0100582 enum {
583 IEEE80211_IBSS_MLME_SEARCH,
584 IEEE80211_IBSS_MLME_JOINED,
585 } state;
586};
587
Javier Cardonadbf498f2012-03-31 11:31:32 -0700588/**
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100589 * struct ieee80211_if_ocb - OCB mode state
590 *
591 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
592 * @wrkq_flags: OCB deferred task action
593 * @incomplete_lock: delayed STA insertion lock
594 * @incomplete_stations: list of STAs waiting for delayed insertion
595 * @joined: indication if the interface is connected to an OCB network
596 */
597struct ieee80211_if_ocb {
598 struct timer_list housekeeping_timer;
599 unsigned long wrkq_flags;
600
601 spinlock_t incomplete_lock;
602 struct list_head incomplete_stations;
603
604 bool joined;
605};
606
607/**
Javier Cardonadbf498f2012-03-31 11:31:32 -0700608 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
609 *
610 * these declarations define the interface, which enables
611 * vendor-specific mesh synchronization
612 *
613 */
614struct ieee802_11_elems;
615struct ieee80211_mesh_sync_ops {
616 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
617 u16 stype,
618 struct ieee80211_mgmt *mgmt,
619 struct ieee802_11_elems *elems,
620 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800621
622 /* should be called with beacon_data under RCU read lock */
623 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
624 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700625 /* add other framework functions here */
626};
627
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700628struct mesh_csa_settings {
629 struct rcu_head rcu_head;
630 struct cfg80211_csa_settings settings;
631};
632
Johannes Berg472dbc42008-09-11 00:01:49 +0200633struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200634 struct timer_list housekeeping_timer;
635 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000636 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200637
Javier Cardona18889232009-08-10 12:15:52 -0700638 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700639 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200640
641 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
642 size_t mesh_id_len;
643 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000644 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200645 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000646 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200647 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000648 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700649 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000650 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700651 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000652 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000653 /* Local mesh Sequence Number */
654 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200655 /* Last used PREQ ID */
656 u32 preq_id;
657 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000658 /* Timestamp of last SN update */
659 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800660 /* Time when it's ok to send next PERR */
661 unsigned long next_perr;
662 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200663 unsigned long last_preq;
664 struct mesh_rmc *rmc;
665 spinlock_t mesh_preq_queue_lock;
666 struct mesh_preq_queue preq_queue;
667 int preq_queue_len;
668 struct mesh_stats mshstats;
669 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700670 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200671 u32 mesh_seqnum;
672 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700673 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800674 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700675 const u8 *ie;
676 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700677 enum {
678 IEEE80211_MESH_SEC_NONE = 0x0,
679 IEEE80211_MESH_SEC_AUTHED = 0x1,
680 IEEE80211_MESH_SEC_SECURED = 0x2,
681 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800682 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700683 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200684 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700685 s64 sync_offset_clockdrift_max;
686 spinlock_t sync_offset_lock;
687 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100688 /* mesh power save */
689 enum nl80211_mesh_power_mode nonpeer_pm;
690 int ps_peers_light_sleep;
691 int ps_peers_deep_sleep;
692 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700693 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700694 struct mesh_csa_settings __rcu *csa;
Luciano Coelho0cb4d4d2014-01-13 19:42:58 +0200695 enum {
696 IEEE80211_MESH_CSA_ROLE_NONE,
697 IEEE80211_MESH_CSA_ROLE_INIT,
698 IEEE80211_MESH_CSA_ROLE_REPEATER,
699 } csa_role;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700700 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700701 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800702
703 /* offset from skb->data while building IE */
704 int meshconf_offset;
Bob Copeland2bdaf382016-02-28 20:03:56 -0500705
Bob Copeland60854fd2016-03-02 10:09:20 -0500706 struct mesh_table *mesh_paths;
707 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
Bob Copeland2bdaf382016-02-28 20:03:56 -0500708 int mesh_paths_generation;
709 int mpp_paths_generation;
Johannes Berg472dbc42008-09-11 00:01:49 +0200710};
Johannes Berg902acc72008-02-23 15:17:19 +0100711
712#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200713#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
714 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100715#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200716#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100717 do { } while (0)
718#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700719
Johannes Berg213cd112008-09-11 00:01:54 +0200720/**
721 * enum ieee80211_sub_if_data_flags - virtual interface flags
722 *
723 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
Johannes Berg213cd112008-09-11 00:01:54 +0200724 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
725 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
726 * associated stations and deliver multicast frames both
727 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200728 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100729 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200730 */
731enum ieee80211_sub_if_data_flags {
732 IEEE80211_SDATA_ALLMULTI = BIT(0),
Johannes Berg7986cf92009-03-21 17:08:43 +0100733 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
734 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200735 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100736 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200737};
738
Johannes Berg34d4bc42010-08-27 12:35:58 +0200739/**
740 * enum ieee80211_sdata_state_bits - virtual interface state bits
741 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
742 * mirrors netif_running() but is separate for interface type
743 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200744 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
745 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100746 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
747 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200748 */
749enum ieee80211_sdata_state_bits {
750 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200751 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100752 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200753};
754
Michal Kaziord01a1e62012-06-26 14:37:16 +0200755/**
756 * enum ieee80211_chanctx_mode - channel context configuration mode
757 *
758 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
759 * multiple interfaces
760 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
761 * only by a single interface. This can be used for example for
762 * non-fixed channel IBSS.
763 */
764enum ieee80211_chanctx_mode {
765 IEEE80211_CHANCTX_SHARED,
766 IEEE80211_CHANCTX_EXCLUSIVE
767};
768
Michal Kazior5bcae312014-06-25 12:35:06 +0200769/**
770 * enum ieee80211_chanctx_replace_state - channel context replacement state
771 *
772 * This is used for channel context in-place reservations that require channel
773 * context switch/swap.
774 *
775 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
776 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
777 * by a (not yet registered) channel context pointed by %replace_ctx.
778 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
779 * replaces an existing channel context pointed to by %replace_ctx.
780 */
781enum ieee80211_chanctx_replace_state {
782 IEEE80211_CHANCTX_REPLACE_NONE,
783 IEEE80211_CHANCTX_WILL_BE_REPLACED,
784 IEEE80211_CHANCTX_REPLACES_OTHER,
785};
786
Michal Kaziord01a1e62012-06-26 14:37:16 +0200787struct ieee80211_chanctx {
788 struct list_head list;
789 struct rcu_head rcu_head;
790
Michal Kazior484298a2014-04-09 15:29:26 +0200791 struct list_head assigned_vifs;
Michal Kaziore3afb922014-04-09 15:29:27 +0200792 struct list_head reserved_vifs;
Michal Kazior484298a2014-04-09 15:29:26 +0200793
Michal Kazior5bcae312014-06-25 12:35:06 +0200794 enum ieee80211_chanctx_replace_state replace_state;
795 struct ieee80211_chanctx *replace_ctx;
796
Michal Kaziord01a1e62012-06-26 14:37:16 +0200797 enum ieee80211_chanctx_mode mode;
Johannes Berg8a61af62012-12-13 17:42:30 +0100798 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200799
800 struct ieee80211_chanctx_conf conf;
801};
802
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800803struct mac80211_qos_map {
804 struct cfg80211_qos_map qos_map;
805 struct rcu_head rcu_head;
806};
807
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100808enum txq_info_flags {
809 IEEE80211_TXQ_STOP,
810 IEEE80211_TXQ_AMPDU,
Felix Fietkau6e0456b2016-03-03 22:59:00 +0100811 IEEE80211_TXQ_NO_AMSDU,
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100812};
813
Michal Kaziorfa962b92016-05-19 10:37:49 +0200814/**
815 * struct txq_info - per tid queue
816 *
817 * @tin: contains packets split into multiple flows
818 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
819 * a fq_flow which is already owned by a different tin
Michal Kazior5caa3282016-05-19 10:37:51 +0200820 * @def_cvars: codel vars for @def_flow
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +0200821 * @frags: used to keep fragments created after dequeue
Michal Kaziorfa962b92016-05-19 10:37:49 +0200822 */
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100823struct txq_info {
Michal Kaziorfa962b92016-05-19 10:37:49 +0200824 struct fq_tin tin;
825 struct fq_flow def_flow;
Michal Kazior5caa3282016-05-19 10:37:51 +0200826 struct codel_vars def_cvars;
Toke Høiland-Jørgensen8d51dbb2016-09-12 15:55:43 +0200827 struct codel_stats cstats;
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +0200828 struct sk_buff_head frags;
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100829 unsigned long flags;
830
831 /* keep last! */
832 struct ieee80211_txq txq;
833};
834
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300835struct ieee80211_if_mntr {
836 u32 flags;
Aviya Erenfeld42bd20d2016-08-29 23:25:16 +0300837 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300838};
839
Ayala Beker5953ff62016-09-20 17:31:19 +0300840/**
841 * struct ieee80211_if_nan - NAN state
842 *
843 * @conf: current NAN configuration
Ayala Beker167e33f2016-09-20 17:31:20 +0300844 * @func_ids: a bitmap of available instance_id's
Ayala Beker5953ff62016-09-20 17:31:19 +0300845 */
846struct ieee80211_if_nan {
847 struct cfg80211_nan_conf conf;
Ayala Beker167e33f2016-09-20 17:31:20 +0300848
849 /* protects function_inst_ids */
850 spinlock_t func_lock;
851 struct idr function_inst_ids;
Ayala Beker5953ff62016-09-20 17:31:19 +0300852};
853
Jiri Bencf0706e82007-05-05 11:45:53 -0700854struct ieee80211_sub_if_data {
855 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700856
857 struct wireless_dev wdev;
858
Johannes Berg11a843b2007-08-28 17:01:55 -0400859 /* keys */
860 struct list_head key_list;
861
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530862 /* count for keys needing tailroom space allocation */
863 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100864 int crypto_tx_tailroom_pending_dec;
865 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530866
Jiri Bencf0706e82007-05-05 11:45:53 -0700867 struct net_device *dev;
868 struct ieee80211_local *local;
869
Jiri Slaby13262ff2007-08-28 17:01:54 -0400870 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200871
Johannes Berg34d4bc42010-08-27 12:35:58 +0200872 unsigned long state;
873
Johannes Berg47846c92009-11-25 17:46:19 +0100874 char name[IFNAMSIZ];
875
Jiri Bencf0706e82007-05-05 11:45:53 -0700876 /* Fragment table for host-based reassembly */
877 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
878 unsigned int fragment_next;
879
Simon Wunderlichb53be792011-11-18 14:20:44 +0100880 /* TID bitmap for NoAck policy */
881 u16 noack_map;
882
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300883 /* bit field of ACM bits (BIT(802.1D tag)) */
884 u8 wmm_acm;
885
Johannes Berg40b275b2011-05-13 14:15:49 +0200886 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
887 struct ieee80211_key __rcu *default_unicast_key;
888 struct ieee80211_key __rcu *default_multicast_key;
889 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700890
Johannes Berg94778282008-10-10 13:21:59 +0200891 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300892 __be16 control_port_protocol;
893 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200894 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200895
Michal Kazior80a83cf2016-05-19 10:37:48 +0200896 atomic_t num_tx_queued;
Johannes Berg54bcbc62012-03-28 11:04:25 +0200897 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800898 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300899
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200900 struct work_struct csa_finalize_work;
Michal Kazior59af6922014-04-09 15:10:59 +0200901 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
Luciano Coelho33787fc2013-11-11 20:34:54 +0200902 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200903
Michal Kazior484298a2014-04-09 15:29:26 +0200904 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
Michal Kaziore3afb922014-04-09 15:29:27 +0200905 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
Michal Kazior484298a2014-04-09 15:29:26 +0200906
Luciano Coelho11335a552013-10-30 13:09:39 +0200907 /* context reservation -- protected with chanctx_mtx */
908 struct ieee80211_chanctx *reserved_chanctx;
909 struct cfg80211_chan_def reserved_chandef;
Michal Kazior09332482014-04-09 15:29:25 +0200910 bool reserved_radar_required;
Michal Kazior5bcae312014-06-25 12:35:06 +0200911 bool reserved_ready;
Luciano Coelho11335a552013-10-30 13:09:39 +0200912
Johannes Berg04ecd252012-09-11 14:34:12 +0200913 /* used to reconfigure hardware SM PS */
914 struct work_struct recalc_smps;
915
Johannes Berg64592c82010-06-10 10:21:31 +0200916 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200917 struct sk_buff_head skb_queue;
918
Johannes Berg04ecd252012-09-11 14:34:12 +0200919 u8 needed_rx_chains;
920 enum ieee80211_smps_mode smps_mode;
921
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200922 int user_power_level; /* in dBm */
923 int ap_power_level; /* in dBm */
924
Simon Wunderlich164eb022013-02-08 18:16:20 +0100925 bool radar_required;
926 struct delayed_work dfs_cac_timer_work;
927
Johannes Berg3e122be2008-07-09 14:40:34 +0200928 /*
929 * AP this belongs to: self in AP mode and
930 * corresponding AP in VLAN mode, NULL for
931 * all others (might be needed later in IBSS)
932 */
933 struct ieee80211_if_ap *bss;
934
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200935 /* bitmap of allowed (non-MCS) rate indexes for rate control */
Johannes Berg57fbcce2016-04-12 15:56:15 +0200936 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200937
Johannes Berg57fbcce2016-04-12 15:56:15 +0200938 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
939 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700940
Johannes Berg57fbcce2016-04-12 15:56:15 +0200941 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
942 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
Lorenzo Bianconib119ad62015-08-06 23:47:33 +0200943
Jiri Bencf0706e82007-05-05 11:45:53 -0700944 union {
945 struct ieee80211_if_ap ap;
946 struct ieee80211_if_wds wds;
947 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100948 struct ieee80211_if_managed mgd;
949 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200950 struct ieee80211_if_mesh mesh;
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100951 struct ieee80211_if_ocb ocb;
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300952 struct ieee80211_if_mntr mntr;
Ayala Beker5953ff62016-09-20 17:31:19 +0300953 struct ieee80211_if_nan nan;
Jiri Bencf0706e82007-05-05 11:45:53 -0700954 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700955
956#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300957 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700958 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100959 struct dentry *default_unicast_key;
960 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200961 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100962 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700963#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100964
Johannes Berg32bfd352007-12-19 01:31:26 +0100965 /* must be last, dynamically sized area in this! */
966 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700967};
968
Johannes Berg32bfd352007-12-19 01:31:26 +0100969static inline
970struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
971{
972 return container_of(p, struct ieee80211_sub_if_data, vif);
973}
974
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200975static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
976 __acquires(&sdata->wdev.mtx)
977{
978 mutex_lock(&sdata->wdev.mtx);
979 __acquire(&sdata->wdev.mtx);
980}
981
982static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
983 __releases(&sdata->wdev.mtx)
984{
985 mutex_unlock(&sdata->wdev.mtx);
986 __release(&sdata->wdev.mtx);
987}
988
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100989#define sdata_dereference(p, sdata) \
990 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
991
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200992static inline void
993sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
994{
995 lockdep_assert_held(&sdata->wdev.mtx);
996}
997
Johannes Berg57fbcce2016-04-12 15:56:15 +0200998static inline enum nl80211_band
Johannes Berg55de9082012-07-26 17:24:39 +0200999ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
1000{
Johannes Berg57fbcce2016-04-12 15:56:15 +02001001 enum nl80211_band band = NL80211_BAND_2GHZ;
Johannes Berg55de9082012-07-26 17:24:39 +02001002 struct ieee80211_chanctx_conf *chanctx_conf;
1003
1004 rcu_read_lock();
1005 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1006 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +01001007 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +02001008 rcu_read_unlock();
1009
1010 return band;
1011}
1012
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001013static inline int
1014ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1015{
1016 switch (chandef->width) {
1017 case NL80211_CHAN_WIDTH_5:
1018 return 2;
1019 case NL80211_CHAN_WIDTH_10:
1020 return 1;
1021 default:
1022 return 0;
1023 }
1024}
1025
1026static inline int
1027ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1028{
1029 struct ieee80211_chanctx_conf *chanctx_conf;
1030 int shift = 0;
1031
1032 rcu_read_lock();
1033 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1034 if (chanctx_conf)
1035 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1036 rcu_read_unlock();
1037
1038 return shift;
1039}
1040
Michal Kazior08cf42e2014-07-16 12:12:15 +02001041struct ieee80211_rx_agg {
1042 u8 addr[ETH_ALEN];
1043 u16 tid;
1044};
1045
Johannes Bergc1475ca2010-06-10 10:21:37 +02001046enum sdata_queue_type {
1047 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1048 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1049 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
Michal Kazior08cf42e2014-07-16 12:12:15 +02001050 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1051 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
Johannes Bergc1475ca2010-06-10 10:21:37 +02001052};
1053
Jiri Bencf0706e82007-05-05 11:45:53 -07001054enum {
1055 IEEE80211_RX_MSG = 1,
1056 IEEE80211_TX_STATUS_MSG = 2,
1057};
1058
Kalle Valoce7c9112008-12-18 23:35:20 +02001059enum queue_stop_reason {
1060 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +02001061 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +01001062 IEEE80211_QUEUE_STOP_REASON_CSA,
1063 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +01001064 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +02001065 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -06001066 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001067 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Arik Nemtsovdb67d662014-06-11 17:18:24 +03001068 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
Liad Kaufmanb6da9112014-11-19 13:47:38 +02001069 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001070
1071 IEEE80211_QUEUE_STOP_REASONS,
Kalle Valoce7c9112008-12-18 23:35:20 +02001072};
1073
Luciano Coelho65a65382010-12-21 16:02:17 +02001074#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +01001075struct tpt_led_trigger {
Johannes Berge1e54062010-11-30 08:58:45 +01001076 char name[32];
1077 const struct ieee80211_tpt_blink *blink_table;
1078 unsigned int blink_table_len;
1079 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +01001080 unsigned long prev_traffic;
1081 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +01001082 unsigned int active, want;
1083 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +01001084};
Luciano Coelho65a65382010-12-21 16:02:17 +02001085#endif
Johannes Berge1e54062010-11-30 08:58:45 +01001086
Helmut Schaa142b9f52009-07-23 13:18:01 +02001087/**
1088 * mac80211 scan flags - currently active scan mode
1089 *
1090 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1091 * well be on the operating channel
1092 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1093 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -07001094 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1095 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +02001096 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1097 * that the scan completed.
1098 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1099 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001100 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1101 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +02001102 */
Helmut Schaafbe9c4292009-07-23 12:14:04 +02001103enum {
1104 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001105 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -07001106 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +02001107 SCAN_COMPLETED,
1108 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001109 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001110};
1111
1112/**
1113 * enum mac80211_scan_state - scan state machine states
1114 *
1115 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1116 * determines if we should keep on scanning or switch back to the
1117 * operating channel
1118 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1119 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +01001120 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1121 * send out data
1122 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -07001123 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +02001124 */
1125enum mac80211_scan_state {
1126 SCAN_DECISION,
1127 SCAN_SET_CHANNEL,
1128 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +01001129 SCAN_SUSPEND,
1130 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -07001131 SCAN_ABORT,
Helmut Schaafbe9c4292009-07-23 12:14:04 +02001132};
1133
Jiri Bencf0706e82007-05-05 11:45:53 -07001134struct ieee80211_local {
1135 /* embed the driver visible part.
1136 * don't cast (use the static inlines below), but we keep
1137 * it first anyway so they become a no-op */
1138 struct ieee80211_hw hw;
1139
Michal Kaziorfa962b92016-05-19 10:37:49 +02001140 struct fq fq;
Michal Kazior5caa3282016-05-19 10:37:51 +02001141 struct codel_vars *cvars;
1142 struct codel_params cparams;
Michal Kaziorfa962b92016-05-19 10:37:49 +02001143
Jiri Bencf0706e82007-05-05 11:45:53 -07001144 const struct ieee80211_ops *ops;
1145
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001146 /*
1147 * private workqueue to mac80211. mac80211 makes this accessible
1148 * via ieee80211_queue_work()
1149 */
1150 struct workqueue_struct *workqueue;
1151
Johannes Berge4e72fb2009-03-23 17:28:42 +01001152 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Luciano Coelhocca07b02014-06-13 16:30:05 +03001153 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
Johannes Berg96f5e662009-02-12 00:51:53 +01001154 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +02001155 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +01001156
Jiri Bencf0706e82007-05-05 11:45:53 -07001157 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +01001158 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +01001159 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001160 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1161 fif_probe_req;
1162 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001163 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001164
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001165 bool wiphy_ciphers_allocated;
1166
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001167 bool use_chanctx;
1168
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001169 /* protects the aggregated multicast list and filter calls */
1170 spinlock_t filter_lock;
1171
Johannes Berg3ac64be2009-08-17 16:16:53 +02001172 /* used for uploading changed mc list */
1173 struct work_struct reconfig_filter;
1174
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001175 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001176 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001177
Johannes Bergd0709a62008-02-25 16:27:46 +01001178 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001179
1180 /*
1181 * suspended is true if we finished all the suspend _and_ we have
1182 * not yet come up from resume. This is to be used by mac80211
1183 * to ensure driver sanity during suspend and mac80211's own
1184 * sanity. It can eventually be used for WoW as well.
1185 */
1186 bool suspended;
1187
1188 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001189 * Resuming is true while suspended, but when we're reprogramming the
1190 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1191 * again even though some other parts of the stack are still suspended
1192 * and we still drop received frames to avoid waking the stack.
1193 */
1194 bool resuming;
1195
1196 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001197 * quiescing is true during the suspend process _only_ to
1198 * ease timer cancelling etc.
1199 */
1200 bool quiescing;
1201
Johannes Bergea77f122009-08-21 14:44:45 +02001202 /* device is started */
1203 bool started;
1204
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001205 /* device is during a HW reconfig */
1206 bool in_reconfig;
1207
Johannes Bergeecc4802011-05-04 15:37:29 +02001208 /* wowlan is enabled -- don't reconfig on resume */
1209 bool wowlan;
1210
Simon Wunderlich164eb022013-02-08 18:16:20 +01001211 struct work_struct radar_detected_work;
1212
Johannes Berg04ecd252012-09-11 14:34:12 +02001213 /* number of RX chains the hardware has */
1214 u8 rx_chains;
1215
Johannes Bergb306f452007-07-10 19:32:08 +02001216 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001217
Jiri Bencf0706e82007-05-05 11:45:53 -07001218 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1219 * added to skb_queue will be processed, but frames in
1220 * skb_queue_unreliable may be dropped if the total length of these
1221 * queues increases over the limit. */
1222#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1223 struct tasklet_struct tasklet;
1224 struct sk_buff_head skb_queue;
1225 struct sk_buff_head skb_queue_unreliable;
1226
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001227 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001228
Johannes Bergd0709a62008-02-25 16:27:46 +01001229 /* Station data */
1230 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001231 * The mutex only protects the list, hash table and
1232 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001233 */
Johannes Berg34e89502010-02-03 13:59:58 +01001234 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001235 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001236 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001237 struct list_head sta_list;
Herbert Xu83e7e4c2016-09-19 19:00:10 +08001238 struct rhltable sta_hash;
Jiri Bencf0706e82007-05-05 11:45:53 -07001239 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001240 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001241
Johannes Berg2a577d92009-03-23 17:28:37 +01001242 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001243 struct tasklet_struct tx_pending_tasklet;
1244
Johannes Berga6a67db2010-06-10 10:21:41 +02001245 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001246
Johannes Bergdf140462015-04-22 14:40:58 +02001247 /* number of interfaces with allmulti RX */
1248 atomic_t iff_allmultis;
Jiri Bencf0706e82007-05-05 11:45:53 -07001249
1250 struct rate_control_ref *rate_ctrl;
1251
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001252 struct crypto_cipher *wep_tx_tfm;
1253 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001254 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001255
Johannes Bergc771c9d2009-01-23 22:54:03 +01001256 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001257 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001258 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001259
Johannes Bergb16bd152008-04-11 21:40:35 +02001260 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001261 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001262 * key pointers (write access, they're RCU.)
1263 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001264 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001265
Johannes Berga1699b72010-07-30 16:46:07 +02001266 /* mutex for scan and work locking */
1267 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001268
Johannes Bergc2b13452008-09-11 00:01:55 +02001269 /* Scanning and BSS list */
Helmut Schaafbe9c4292009-07-23 12:14:04 +02001270 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001271 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001272 struct cfg80211_scan_request *int_scan_req;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001273 struct cfg80211_scan_request __rcu *scan_req;
David Spinadelc56ef672014-02-05 15:21:13 +02001274 struct ieee80211_scan_request *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001275 struct cfg80211_chan_def scan_chandef;
Johannes Berg57fbcce2016-04-12 15:56:15 +02001276 enum nl80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001277 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001278 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001279 int hw_scan_ies_bufsize;
Avraham Stern7947d3e2016-07-05 15:23:12 +03001280 struct cfg80211_scan_info scan_info;
Johannes Berg8318d782008-01-24 19:38:38 +01001281
Luciano Coelho85a99942011-05-12 16:28:29 +03001282 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001283 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001284 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
Johannes Berga344d672014-06-12 22:24:31 +02001285 u8 scan_addr[ETH_ALEN];
Luciano Coelho79f460c2011-05-11 17:09:36 +03001286
Helmut Schaadf13cce2010-02-24 14:19:21 +01001287 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001288 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001289 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001290 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001291 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001292 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001293
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001294 /* Temporary remain-on-channel for off-channel operations */
1295 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001296
Michal Kaziord01a1e62012-06-26 14:37:16 +02001297 /* channel contexts */
1298 struct list_head chanctx_list;
1299 struct mutex chanctx_mtx;
1300
Johannes Bergc206ca62015-04-22 20:47:28 +02001301#ifdef CONFIG_MAC80211_LEDS
Johannes Berg8d5c2582015-04-23 12:19:22 +02001302 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1303 struct led_trigger tpt_led;
1304 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1305 atomic_t radio_led_active, tpt_led_active;
Johannes Bergc206ca62015-04-22 20:47:28 +02001306 struct tpt_led_trigger *tpt_led_trigger;
Johannes Bergc206ca62015-04-22 20:47:28 +02001307#endif
1308
1309#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
Jiri Bencf0706e82007-05-05 11:45:53 -07001310 /* SNMP counters */
1311 /* dot11CountersTable */
1312 u32 dot11TransmittedFragmentCount;
1313 u32 dot11MulticastTransmittedFrameCount;
1314 u32 dot11FailedCount;
1315 u32 dot11RetryCount;
1316 u32 dot11MultipleRetryCount;
1317 u32 dot11FrameDuplicateCount;
1318 u32 dot11ReceivedFragmentCount;
1319 u32 dot11MulticastReceivedFrameCount;
1320 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001321
Jiri Bencf0706e82007-05-05 11:45:53 -07001322 /* TX/RX handler statistics */
1323 unsigned int tx_handlers_drop;
1324 unsigned int tx_handlers_queued;
Jiri Bencf0706e82007-05-05 11:45:53 -07001325 unsigned int tx_handlers_drop_wep;
1326 unsigned int tx_handlers_drop_not_assoc;
1327 unsigned int tx_handlers_drop_unauth_port;
1328 unsigned int rx_handlers_drop;
1329 unsigned int rx_handlers_queued;
1330 unsigned int rx_handlers_drop_nullfunc;
1331 unsigned int rx_handlers_drop_defrag;
Jiri Bencf0706e82007-05-05 11:45:53 -07001332 unsigned int tx_expand_skb_head;
1333 unsigned int tx_expand_skb_head_cloned;
Johannes Bergf1160432015-04-22 20:25:20 +02001334 unsigned int rx_expand_skb_head_defrag;
Jiri Bencf0706e82007-05-05 11:45:53 -07001335 unsigned int rx_handlers_fragments;
1336 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001337#define I802_DEBUG_INC(c) (c)++
1338#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1339#define I802_DEBUG_INC(c) do { } while (0)
1340#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1341
1342
Jiri Bencf0706e82007-05-05 11:45:53 -07001343 int total_ps_buffered; /* total number of all buffered unicast and
1344 * multicast packets for power saving stations
1345 */
Kalle Valo520eb822008-12-18 23:35:27 +02001346
Kalle Valo572e0012009-02-10 17:09:31 +02001347 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001348 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001349 /*
1350 * PS can only be enabled when we have exactly one managed
1351 * interface (and monitors) in PS, this then points there.
1352 */
1353 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001354 struct work_struct dynamic_ps_enable_work;
1355 struct work_struct dynamic_ps_disable_work;
1356 struct timer_list dynamic_ps_timer;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001357 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001358 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001359
Juuso Oikarinenff616382010-06-09 09:51:52 +03001360 /*
1361 * The dynamic ps timeout configured from user space via WEXT -
1362 * this will override whatever chosen by mac80211 internally.
1363 */
1364 int dynamic_ps_forced_timeout;
1365
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001366 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001367
Johannes Berg0f782312009-12-01 13:37:02 +01001368 enum ieee80211_smps_mode smps_mode;
1369
Johannes Bergf2753dd2009-04-14 10:09:24 +02001370 struct work_struct restart_work;
1371
Jiri Bence9f207f2007-05-05 11:46:38 -07001372#ifdef CONFIG_MAC80211_DEBUGFS
1373 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001374 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001375 struct dentry *keys;
1376 } debugfs;
1377#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001378
Johannes Berg2eb278e2012-06-05 14:28:42 +02001379 /*
1380 * Remain-on-channel support
1381 */
Johannes Bergaaa016c2015-11-23 23:53:51 +01001382 struct delayed_work roc_work;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001383 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001384 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001385 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001386 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001387
Johannes Berga729cff2011-11-06 14:13:34 +01001388 struct idr ack_status_frames;
1389 spinlock_t ack_status_lock;
1390
Johannes Bergf142c6b2012-06-18 20:07:15 +02001391 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1392
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001393 /* virtual monitor interface */
1394 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001395 struct cfg80211_chan_def monitor_chandef;
Luciano Coelhoe9a21942014-10-08 09:48:36 +03001396
1397 /* extended capabilities provided by mac80211 */
1398 u8 ext_capa[8];
Arik Nemtsovc8ff71e2015-07-08 15:41:45 +03001399
1400 /* TDLS channel switch */
1401 struct work_struct tdls_chsw_work;
1402 struct sk_buff_head skb_queue_tdls_chsw;
Jiri Bencf0706e82007-05-05 11:45:53 -07001403};
1404
Johannes Berg3e122be2008-07-09 14:40:34 +02001405static inline struct ieee80211_sub_if_data *
1406IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1407{
Johannes Berg3e122be2008-07-09 14:40:34 +02001408 return netdev_priv(dev);
1409}
1410
Johannes Berg71bbc992012-06-15 15:30:18 +02001411static inline struct ieee80211_sub_if_data *
1412IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1413{
1414 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1415}
1416
Johannes Bergc1475ca2010-06-10 10:21:37 +02001417/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001418struct ieee80211_ra_tid {
1419 u8 ra[ETH_ALEN];
1420 u16 tid;
1421};
1422
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001423/* this struct holds the value parsing from channel switch IE */
1424struct ieee80211_csa_ie {
1425 struct cfg80211_chan_def chandef;
1426 u8 mode;
1427 u8 count;
1428 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001429 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001430};
1431
Johannes Bergdd769862011-11-18 16:54:50 +01001432/* Parsed Information Elements */
1433struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001434 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001435 size_t total_len;
1436
1437 /* pointers to IEs */
Arik Nemtsov53837582014-11-09 18:50:18 +02001438 const struct ieee80211_tdls_lnkie *lnk_id;
1439 const struct ieee80211_ch_switch_timing *ch_sw_timing;
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001440 const u8 *ext_capab;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001441 const u8 *ssid;
1442 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001443 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001444 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001445 const u8 *challenge;
1446 const u8 *rsn;
1447 const u8 *erp_info;
1448 const u8 *ext_supp_rates;
1449 const u8 *wmm_info;
1450 const u8 *wmm_param;
1451 const struct ieee80211_ht_cap *ht_cap_elem;
1452 const struct ieee80211_ht_operation *ht_operation;
1453 const struct ieee80211_vht_cap *vht_cap_elem;
1454 const struct ieee80211_vht_operation *vht_operation;
1455 const struct ieee80211_meshconf_ie *mesh_config;
1456 const u8 *mesh_id;
1457 const u8 *peering;
1458 const __le16 *awake_window;
1459 const u8 *preq;
1460 const u8 *prep;
1461 const u8 *perr;
1462 const struct ieee80211_rann_ie *rann;
1463 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001464 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001465 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001466 const u8 *country_elem;
1467 const u8 *pwr_constr_elem;
Steinar H. Gundersonc8d65912014-09-03 06:48:37 -07001468 const u8 *cisco_dtpc_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001469 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001470 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001471 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001472 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001473
1474 /* length of them, respectively */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001475 u8 ext_capab_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001476 u8 ssid_len;
1477 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001478 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001479 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001480 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001481 u8 ext_supp_rates_len;
1482 u8 wmm_info_len;
1483 u8 wmm_param_len;
1484 u8 mesh_id_len;
1485 u8 peering_len;
1486 u8 preq_len;
1487 u8 prep_len;
1488 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001489 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001490
1491 /* whether a parse error occurred while retrieving these elements */
1492 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001493};
1494
Jiri Bencf0706e82007-05-05 11:45:53 -07001495static inline struct ieee80211_local *hw_to_local(
1496 struct ieee80211_hw *hw)
1497{
1498 return container_of(hw, struct ieee80211_local, hw);
1499}
1500
Felix Fietkauba8c3d62015-03-27 21:30:37 +01001501static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1502{
1503 return container_of(txq, struct txq_info, txq);
1504}
Jiri Bencf0706e82007-05-05 11:45:53 -07001505
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +02001506static inline bool txq_has_queue(struct ieee80211_txq *txq)
1507{
1508 struct txq_info *txqi = to_txq_info(txq);
1509
1510 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1511}
1512
Johannes Berg571ecf62007-07-27 15:43:22 +02001513static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1514{
Joe Perchesb203ca32012-05-08 18:56:52 +00001515 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001516 is_broadcast_ether_addr(raddr);
1517}
1518
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001519static inline bool
1520ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1521{
1522 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1523 status->flag & RX_FLAG_MACTIME_END);
Johannes Bergf4a0f0c2016-01-25 15:46:34 +02001524 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1525 return true;
1526 /* can't handle HT/VHT preamble yet */
1527 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1528 !(status->flag & (RX_FLAG_HT | RX_FLAG_VHT)))
1529 return true;
1530 return false;
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001531}
Johannes Berg571ecf62007-07-27 15:43:22 +02001532
Michael Braun72f15d52016-10-10 19:12:21 +02001533void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1534void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1535
1536/* This function returns the number of multicast stations connected to this
1537 * interface. It returns -1 if that number is not tracked, that is for netdevs
1538 * not in AP or AP_VLAN mode or when using 4addr.
1539 */
1540static inline int
1541ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1542{
1543 if (sdata->vif.type == NL80211_IFTYPE_AP)
1544 return atomic_read(&sdata->u.ap.num_mcast_sta);
1545 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1546 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1547 return -1;
1548}
1549
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001550u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1551 struct ieee80211_rx_status *status,
1552 unsigned int mpdu_len,
1553 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001554int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001555void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001556void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1557 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001558void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001559u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001560
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001561u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
Johannes Berg5ee00db2015-11-24 14:25:49 +01001562int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1563 u64 *cookie, gfp_t gfp);
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001564
Johannes Berg49ddf8e2016-03-31 20:02:10 +03001565void ieee80211_check_fast_rx(struct sta_info *sta);
1566void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1567void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1568void ieee80211_clear_fast_rx(struct sta_info *sta);
1569
Johannes Berg46900292009-02-15 12:44:28 +01001570/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001571void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001572int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1573 struct cfg80211_auth_request *req);
1574int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1575 struct cfg80211_assoc_request *req);
1576int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001577 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001578int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001579 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001580void ieee80211_send_pspoll(struct ieee80211_local *local,
1581 struct ieee80211_sub_if_data *sdata);
Johannes Berg4a733ef2015-10-14 18:02:43 +02001582void ieee80211_recalc_ps(struct ieee80211_local *local);
Eliad Pellerab095872012-07-27 12:33:22 +03001583void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001584int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001585void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1586void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1587 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001588void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001589void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001590void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001591void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1592 __le16 fc, bool acked);
Johannes Berg1a1cb742014-03-19 09:55:55 +01001593void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001594void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg02219b32014-10-07 10:38:50 +03001595void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001596
Johannes Berg46900292009-02-15 12:44:28 +01001597/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001598void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1599void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001600void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1601 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001602int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1603 struct cfg80211_ibss_params *params);
1604int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001605void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1606void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1607 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001608int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1609 struct cfg80211_csa_settings *csa_settings);
1610int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1611void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001612
Rostislav Lisovy239281f2014-11-03 10:33:19 +01001613/* OCB code */
1614void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1615void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1616 const u8 *bssid, const u8 *addr, u32 supp_rates);
1617void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1618int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1619 struct ocb_setup *setup);
1620int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1621
Johannes Berg1fa57d02010-06-10 10:21:32 +02001622/* mesh code */
1623void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1624void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1625 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001626int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
Luciano Coelho66e01cf2014-01-13 19:43:00 +02001627 struct cfg80211_csa_settings *csa_settings);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001628int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001629
Johannes Berg9c6bd792008-09-11 00:01:52 +02001630/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001631void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001632int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1633 const u8 *ssid, u8 ssid_len,
Janusz.Dziedzic@tieto.com76bed0f2015-03-20 06:37:00 +01001634 struct ieee80211_channel **channels,
1635 unsigned int n_channels,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001636 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001637int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001638 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001639void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001640void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001641void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001642
Johannes Berg0a51b272008-09-08 17:44:25 +02001643void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001644struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001645ieee80211_bss_info_update(struct ieee80211_local *local,
1646 struct ieee80211_rx_status *rx_status,
1647 struct ieee80211_mgmt *mgmt,
1648 size_t len,
1649 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001650 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001651void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001652 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001653
Luciano Coelho79f460c2011-05-11 17:09:36 +03001654/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001655int
1656__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1657 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001658int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1659 struct cfg80211_sched_scan_request *req);
Eliad Peller0d440ea2015-10-25 10:59:33 +02001660int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
Johannes Bergf6837ba2014-04-30 14:19:04 +02001661void ieee80211_sched_scan_end(struct ieee80211_local *local);
Luciano Coelho85a99942011-05-12 16:28:29 +03001662void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001663
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001664/* off-channel/mgmt-tx */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001665void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1666void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001667void ieee80211_roc_setup(struct ieee80211_local *local);
1668void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001669void ieee80211_roc_purge(struct ieee80211_local *local,
1670 struct ieee80211_sub_if_data *sdata);
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001671int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1672 struct ieee80211_channel *chan,
1673 unsigned int duration, u64 *cookie);
1674int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1675 struct wireless_dev *wdev, u64 cookie);
1676int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1677 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1678int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1679 struct wireless_dev *wdev, u64 cookie);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001680
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001681/* channel switch handling */
1682void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001683int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1684 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001685
Johannes Berg3e122be2008-07-09 14:40:34 +02001686/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001687int ieee80211_iface_init(void);
1688void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001689int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Tom Gundersen6bab2e192015-03-18 11:13:39 +01001690 unsigned char name_assign_type,
Johannes Berg84efbb82012-06-16 00:00:26 +02001691 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001692 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001693int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001694 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001695void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001696void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001697u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001698void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001699void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1700 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001701int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1702void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001703int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1704void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001705
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001706bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
Lorenzo Bianconidb82d8a2015-01-14 12:55:08 +01001707void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1708 bool update_bss);
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001709
Johannes Berg9607e6b662009-12-23 13:15:31 +01001710static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1711{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001712 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b662009-12-23 13:15:31 +01001713}
1714
Johannes Berge2ebc742007-07-27 15:43:22 +02001715/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001716void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1717void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001718netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1719 struct net_device *dev);
1720netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1721 struct net_device *dev);
Liad Kaufman24d342c2014-11-09 18:50:07 +02001722void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1723 struct net_device *dev,
1724 u32 info_flags);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001725void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1726 struct sk_buff_head *skbs);
Johannes Berg7528ec52014-11-09 18:50:11 +02001727struct sk_buff *
1728ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1729 struct sk_buff *skb, u32 info_flags);
Helmut Schaa4dc792b2015-09-02 13:23:30 +02001730void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1731 struct ieee80211_supported_band *sband,
1732 int retry_count, int shift, bool send_to_cooked);
Johannes Berge2ebc742007-07-27 15:43:22 +02001733
Johannes Berg17c18bf2015-03-21 15:25:43 +01001734void ieee80211_check_fast_xmit(struct sta_info *sta);
1735void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1736void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1737void ieee80211_clear_fast_xmit(struct sta_info *sta);
1738
Johannes Bergde1ede72008-09-09 14:42:50 +02001739/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001740void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1741 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001742bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001743 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001744 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001745 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001746void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1747 const u8 *da, u16 tid,
1748 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001749int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1750 enum ieee80211_smps_mode smps, const u8 *da,
1751 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001752void ieee80211_request_smps_ap_work(struct work_struct *work);
1753void ieee80211_request_smps_mgd_work(struct work_struct *work);
1754bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1755 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001756
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001757void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001758 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001759void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001760 u16 initiator, u16 reason, bool stop);
Michal Kazior08cf42e2014-07-16 12:12:15 +02001761void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1762 u8 dialog_token, u16 timeout,
1763 u16 start_seq_num, u16 ba_policy, u16 tid,
Michal Kazior4549cf22014-09-02 14:05:10 +02001764 u16 buf_size, bool tx, bool auto_seq);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001765void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1766 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001767void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1768 struct sta_info *sta,
1769 struct ieee80211_mgmt *mgmt, size_t len);
1770void ieee80211_process_addba_resp(struct ieee80211_local *local,
1771 struct sta_info *sta,
1772 struct ieee80211_mgmt *mgmt,
1773 size_t len);
1774void ieee80211_process_addba_request(struct ieee80211_local *local,
1775 struct sta_info *sta,
1776 struct ieee80211_mgmt *mgmt,
1777 size_t len);
1778
Johannes Berg849b7962009-02-10 21:25:54 +01001779int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001780 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001781int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001782 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001783void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1784void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001785void ieee80211_ba_session_work(struct work_struct *work);
1786void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8ebf2010-08-05 01:36:41 +02001787void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001788
Johannes Berg04ecd252012-09-11 14:34:12 +02001789u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1790
Mahesh Palivela818255e2012-10-10 11:33:04 +00001791/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001792void
1793ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1794 struct ieee80211_supported_band *sband,
1795 const struct ieee80211_vht_cap *vht_cap_ie,
1796 struct sta_info *sta);
Eliad Peller1c45c5c2014-12-14 11:05:51 +02001797enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001798enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001799void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Arik Nemtsov59021c62016-03-02 23:28:32 +02001800enum ieee80211_sta_rx_bandwidth
1801ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1802enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1803void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Sara Sharon23a1f8d2015-12-08 16:04:31 +02001804void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1805 struct ieee80211_mgmt *mgmt);
Marek Kwaczynskib1bce14a2014-02-03 14:44:44 +01001806u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1807 struct sta_info *sta, u8 opmode,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001808 enum nl80211_band band);
Johannes Berg0af83d32012-12-27 18:55:36 +01001809void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1810 struct sta_info *sta, u8 opmode,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001811 enum nl80211_band band);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001812void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1813 struct ieee80211_sta_vht_cap *vht_cap);
Lorenzo Bianconib119ad62015-08-06 23:47:33 +02001814void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1815 u16 vht_mask[NL80211_VHT_NSS_MAX]);
Johannes Berg4a342152013-02-07 11:58:58 +01001816
Johannes Berg39192c02008-09-09 14:49:03 +02001817/* Spectrum management */
1818void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1819 struct ieee80211_mgmt *mgmt,
1820 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001821/**
1822 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1823 * @sdata: the sdata of the interface which has received the frame
1824 * @elems: parsed 802.11 elements received with the frame
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001825 * @current_band: indicates the current band
1826 * @sta_flags: contains information about own capabilities and restrictions
1827 * to decide which channel switch announcements can be accepted. Only the
1828 * following subset of &enum ieee80211_sta_flags are evaluated:
1829 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1830 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1831 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001832 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001833 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1834 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001835 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1836 */
1837int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
Luciano Coelho84469a42014-10-28 13:33:04 +02001838 struct ieee802_11_elems *elems,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001839 enum nl80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001840 u32 sta_flags, u8 *bssid,
1841 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001842
Johannes Bergf2753dd2009-04-14 10:09:24 +02001843/* Suspend/resume and hw reconfiguration */
1844int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001845void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001846
Johannes Bergeecc4802011-05-04 15:37:29 +02001847int __ieee80211_suspend(struct ieee80211_hw *hw,
1848 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001849
1850static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1851{
John W. Linville85f72bc2010-09-01 16:12:28 -04001852 struct ieee80211_local *local = hw_to_local(hw);
1853
Luciano Coelho9120d942015-01-24 10:30:02 +02001854 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1855 !test_bit(SCAN_COMPLETED, &local->scanning),
John W. Linville85f72bc2010-09-01 16:12:28 -04001856 "%s: resume with hardware scan still in progress\n",
1857 wiphy_name(hw->wiphy));
1858
Johannes Bergf2753dd2009-04-14 10:09:24 +02001859 return ieee80211_reconfig(hw_to_local(hw));
1860}
Bob Copeland665af4f2009-01-19 11:20:53 -05001861
Johannes Bergc2d15602007-07-27 15:43:23 +02001862/* utility functions/constants */
Johannes Berg8a47cea2014-01-20 23:55:44 +01001863extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
Johannes Berg57fbcce2016-04-12 15:56:15 +02001864int ieee80211_frame_duration(enum nl80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001865 int rate, int erp, int short_preamble,
1866 int shift);
Johannes Berg3abead52012-03-02 15:56:59 +01001867void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
Johannes Bergcec66282015-10-22 17:46:04 +02001868 bool bss_notify, bool enable_qos);
Johannes Berg7c107702015-03-20 14:18:27 +01001869void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1870 struct sta_info *sta, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001871
Johannes Berg55de9082012-07-26 17:24:39 +02001872void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1873 struct sk_buff *skb, int tid,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001874 enum nl80211_band band);
Johannes Berg55de9082012-07-26 17:24:39 +02001875
1876static inline void
1877ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1878 struct sk_buff *skb, int tid,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001879 enum nl80211_band band)
Johannes Berg55de9082012-07-26 17:24:39 +02001880{
1881 rcu_read_lock();
1882 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1883 rcu_read_unlock();
1884}
1885
1886static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1887 struct sk_buff *skb, int tid)
1888{
1889 struct ieee80211_chanctx_conf *chanctx_conf;
1890
1891 rcu_read_lock();
1892 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1893 if (WARN_ON(!chanctx_conf)) {
1894 rcu_read_unlock();
1895 kfree_skb(skb);
1896 return;
1897 }
1898
1899 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001900 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001901 rcu_read_unlock();
1902}
1903
1904static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001905 struct sk_buff *skb)
1906{
1907 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1908 ieee80211_tx_skb_tid(sdata, skb, 7);
1909}
1910
Johannes Berg35d865a2013-05-28 10:54:03 +02001911u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001912 struct ieee802_11_elems *elems,
1913 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001914static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1915 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001916 struct ieee802_11_elems *elems)
1917{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001918 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001919}
1920
Michal Kazior83eb9352014-07-16 12:09:31 +02001921
Johannes Berg02219b32014-10-07 10:38:50 +03001922extern const int ieee802_1d_to_ac[8];
1923
1924static inline int ieee80211_ac_from_tid(int tid)
1925{
1926 return ieee802_1d_to_ac[tid & 7];
1927}
1928
Kalle Valo520eb822008-12-18 23:35:27 +02001929void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1930void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1931void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001932void ieee80211_send_nullfunc(struct ieee80211_local *local,
1933 struct ieee80211_sub_if_data *sdata,
Johannes Berg076cdcb2015-09-24 16:14:55 +02001934 bool powersave);
Kalle Valo3cf335d52009-03-22 21:57:06 +02001935void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1936 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001937void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Johannes Berg02219b32014-10-07 10:38:50 +03001938 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
Kalle Valo520eb822008-12-18 23:35:27 +02001939
Kalle Valoce7c9112008-12-18 23:35:20 +02001940void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001941 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001942 enum queue_stop_reason reason,
1943 bool refcounted);
Luciano Coelho26da23b2014-06-13 16:30:06 +03001944void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1945 struct ieee80211_sub_if_data *sdata,
1946 enum queue_stop_reason reason);
1947void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1948 struct ieee80211_sub_if_data *sdata,
1949 enum queue_stop_reason reason);
Kalle Valoce7c9112008-12-18 23:35:20 +02001950void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001951 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001952 enum queue_stop_reason reason,
1953 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001954void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001955 enum queue_stop_reason reason,
1956 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001957void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001958 enum queue_stop_reason reason,
1959 bool refcounted);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001960void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001961void ieee80211_add_pending_skb(struct ieee80211_local *local,
1962 struct sk_buff *skb);
Johannes Berge3685e02014-02-20 11:19:58 +01001963void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1964 struct sk_buff_head *skbs);
Johannes Berg39ecc012013-02-13 12:11:00 +01001965void ieee80211_flush_queues(struct ieee80211_local *local,
Emmanuel Grumbach3b24f4c2015-01-07 15:42:39 +02001966 struct ieee80211_sub_if_data *sdata, bool drop);
Liad Kaufman4f9610d2014-11-09 18:50:21 +02001967void __ieee80211_flush_queues(struct ieee80211_local *local,
1968 struct ieee80211_sub_if_data *sdata,
Emmanuel Grumbach3b24f4c2015-01-07 15:42:39 +02001969 unsigned int queues, bool drop);
Kalle Valoce7c9112008-12-18 23:35:20 +02001970
Emmanuel Grumbach4afaff12015-01-22 23:32:46 +02001971static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1972{
1973 /*
1974 * If quiescing is set, we are racing with __ieee80211_suspend.
1975 * __ieee80211_suspend flushes the workers after setting quiescing,
1976 * and we check quiescing / suspended before enqueing new workers.
1977 * We should abort the worker to avoid the races below.
1978 */
1979 if (local->quiescing)
1980 return false;
1981
1982 /*
1983 * We might already be suspended if the following scenario occurs:
1984 * __ieee80211_suspend Control path
1985 *
1986 * if (local->quiescing)
1987 * return;
1988 * local->quiescing = true;
1989 * flush_workqueue();
1990 * queue_work(...);
1991 * local->suspended = true;
1992 * local->quiescing = false;
1993 * worker starts running...
1994 */
1995 if (local->suspended)
1996 return false;
1997
1998 return true;
1999}
2000
Michal Kaziorfa962b92016-05-19 10:37:49 +02002001int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2002void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2003void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2004 struct sta_info *sta,
2005 struct txq_info *txq, int tid);
2006void ieee80211_txq_purge(struct ieee80211_local *local,
2007 struct txq_info *txqi);
Johannes Berg46900292009-02-15 12:44:28 +01002008void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03002009 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01002010 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01002011 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2012 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02002013void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2014 const u8 *bssid, u16 stype, u16 reason,
2015 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02002016int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
David Spinadelc56ef672014-02-05 15:21:13 +02002017 size_t buffer_len,
2018 struct ieee80211_scan_ies *ie_desc,
2019 const u8 *ie, size_t ie_len,
2020 u8 bands_used, u32 *rate_masks,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002021 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02002022struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berga344d672014-06-12 22:24:31 +02002023 const u8 *src, const u8 *dst,
2024 u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02002025 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02002026 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08002027 const u8 *ie, size_t ie_len,
2028 bool directed);
Johannes Berga344d672014-06-12 22:24:31 +02002029void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
2030 const u8 *src, const u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02002031 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08002032 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01002033 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02002034 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01002035
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002036u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01002037 struct ieee802_11_elems *elems,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002038 enum nl80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03002039int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2040 enum ieee80211_smps_mode smps_mode);
2041int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2042 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02002043void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02002044void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01002045
Johannes Berg8e664fb2009-12-23 13:15:38 +01002046size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08002047u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07002048 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01002049u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01002050 const struct cfg80211_chan_def *chandef,
Arik Nemtsov57f255f2015-10-25 10:59:34 +02002051 u16 prot_mode, bool rifs_mode);
Mahesh Palivelaba0afa22012-07-02 11:25:12 +00002052u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2053 u32 cap);
Arik Nemtsovfb28ec02015-03-01 09:10:02 +02002054u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2055 const struct cfg80211_chan_def *chandef);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002056int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2057 const struct ieee80211_supported_band *sband,
2058 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02002059int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02002060 struct sk_buff *skb, bool need_basic,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002061 enum nl80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02002062int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02002063 struct sk_buff *skb, bool need_basic,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002064 enum nl80211_band band);
Arik Nemtsov40b861a2014-07-17 17:14:23 +03002065u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
Johannes Berg8e664fb2009-12-23 13:15:38 +01002066
Johannes Bergf444de02010-05-05 15:25:02 +02002067/* channel management */
Johannes Berg8ac3c7042015-12-18 15:08:34 +01002068bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2069 struct cfg80211_chan_def *chandef);
2070bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2071 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02002072u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02002073
Michal Kaziord01a1e62012-06-26 14:37:16 +02002074int __must_check
2075ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01002076 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02002077 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01002078int __must_check
Luciano Coelho11335a552013-10-30 13:09:39 +02002079ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2080 const struct cfg80211_chan_def *chandef,
Michal Kazior09332482014-04-09 15:29:25 +02002081 enum ieee80211_chanctx_mode mode,
2082 bool radar_required);
Luciano Coelho11335a552013-10-30 13:09:39 +02002083int __must_check
Michal Kazior5bcae312014-06-25 12:35:06 +02002084ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
Luciano Coelho11335a552013-10-30 13:09:39 +02002085int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2086
2087int __must_check
Johannes Berg2c9b7352013-02-07 21:37:29 +01002088ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2089 const struct cfg80211_chan_def *chandef,
2090 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02002091void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01002092void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01002093void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2094 bool clear);
Michal Kaziorc0166da2014-04-09 15:29:33 +02002095int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2096 struct ieee80211_chanctx *ctx);
Michal Kaziord01a1e62012-06-26 14:37:16 +02002097
Johannes Berg04ecd252012-09-11 14:34:12 +02002098void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2099 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02002100void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2101 struct ieee80211_chanctx *ctx);
Eliad Peller5cbc95a2015-01-07 17:50:09 +02002102bool ieee80211_is_radar_required(struct ieee80211_local *local);
Simon Wunderlich164eb022013-02-08 18:16:20 +01002103
2104void ieee80211_dfs_cac_timer(unsigned long data);
2105void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2106void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2107void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07002108int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2109 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02002110
Max Stepanov2475b1cc2013-03-24 14:23:27 +02002111bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2112bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2113const struct ieee80211_cipher_scheme *
2114ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2115 enum nl80211_iftype iftype);
2116int ieee80211_cs_headroom(struct ieee80211_local *local,
2117 struct cfg80211_crypto_settings *crypto,
2118 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08002119void ieee80211_recalc_dtim(struct ieee80211_local *local,
2120 struct ieee80211_sub_if_data *sdata);
Luciano Coelho73de86a2014-02-13 11:31:59 +02002121int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2122 const struct cfg80211_chan_def *chandef,
2123 enum ieee80211_chanctx_mode chanmode,
2124 u8 radar_detect);
Michal Kazior6fa001b2014-04-09 15:29:23 +02002125int ieee80211_max_num_channels(struct ieee80211_local *local);
Arik Nemtsov0fabfaa2015-06-10 20:41:23 +03002126enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2127void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2128 struct ieee80211_chanctx *ctx);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02002129
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002130/* TDLS */
2131int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002132 const u8 *peer, u8 action_code, u8 dialog_token,
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002133 u16 status_code, u32 peer_capability,
Arik Nemtsov31fa97c2014-06-11 17:18:21 +03002134 bool initiator, const u8 *extra_ies,
2135 size_t extra_ies_len);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002136int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002137 const u8 *peer, enum nl80211_tdls_operation oper);
Johannes Bergc10a1992014-09-05 10:56:35 +02002138void ieee80211_tdls_peer_del_work(struct work_struct *wk);
Arik Nemtsova7a6bdd2014-11-09 18:50:19 +02002139int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2140 const u8 *addr, u8 oper_class,
2141 struct cfg80211_chan_def *chandef);
2142void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2143 struct net_device *dev,
2144 const u8 *addr);
Arik Nemtsovd51c2ea2015-06-14 16:53:46 +03002145void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
Arik Nemtsovc8ff71e2015-07-08 15:41:45 +03002146void ieee80211_tdls_chsw_work(struct work_struct *wk);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002147
Johannes Bergb7ffbd72014-06-04 17:31:56 +02002148extern const struct ethtool_ops ieee80211_ethtool_ops;
2149
Johannes Bergf4ea83d2008-06-30 15:10:46 +02002150#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02002151#define debug_noinline noinline
2152#else
2153#define debug_noinline
2154#endif
2155
Jiri Bencf0706e82007-05-05 11:45:53 -07002156#endif /* IEEE80211_I_H */