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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
Michael S. Tsirkin9efecca2016-12-11 06:34:53 +0200162typedef unsigned __bitwise ieee80211_tx_result;
Johannes Berg9ae54c82008-01-31 19:48:20 +0100163#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
Michael S. Tsirkin9efecca2016-12-11 06:34:53 +0200183typedef unsigned __bitwise ieee80211_rx_result;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100184#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;
Michael Braunebceec82016-11-22 11:52:18 +0100300 bool multicast_to_unicast;
Jiri Bencf0706e82007-05-05 11:45:53 -0700301};
302
303struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700304 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100305 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700306};
307
308struct ieee80211_if_vlan {
Michal Kazior4e141da2014-03-05 13:14:08 +0100309 struct list_head list; /* write-protected with RTNL and local->mtx */
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100310
311 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200312 struct sta_info __rcu *sta;
Michael Braun72f15d52016-10-10 19:12:21 +0200313 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Jiri Bencf0706e82007-05-05 11:45:53 -0700314};
315
Luis Carlos Coboee385852008-02-23 15:17:11 +0100316struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700317 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
318 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
319 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100320 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
321 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700322 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100323};
324
325#define PREQ_Q_F_START 0x1
326#define PREQ_Q_F_REFRESH 0x2
327struct mesh_preq_queue {
328 struct list_head list;
329 u8 dst[ETH_ALEN];
330 u8 flags;
331};
332
Johannes Berg2eb278e2012-06-05 14:28:42 +0200333struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200334 struct list_head list;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100335
336 struct ieee80211_sub_if_data *sdata;
337
Johannes Bergf679f652009-12-23 13:15:34 +0100338 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100339
Johannes Berg2eb278e2012-06-05 14:28:42 +0200340 bool started, abort, hw_begun, notified;
Johannes Bergb4b177a2014-05-14 15:34:41 +0200341 bool on_channel;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200342
Johannes Bergaaa016c2015-11-23 23:53:51 +0100343 unsigned long start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100344
Johannes Berg2eb278e2012-06-05 14:28:42 +0200345 u32 duration, req_duration;
346 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200347 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200348 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200349};
350
Johannes Berg46900292009-02-15 12:44:28 +0100351/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200352enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200353 IEEE80211_STA_CONNECTION_POLL = BIT(1),
354 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100355 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200356 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200357 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530358 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700359 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200360 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000361 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100362 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
363 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200364 IEEE80211_STA_DISABLE_WMM = BIT(14),
Assaf Krausscd2f5dd2014-09-03 15:25:02 +0300365 IEEE80211_STA_ENABLE_RRM = BIT(15),
Johannes Bergab1faea2009-07-01 21:41:17 +0200366};
367
Johannes Berg66e67e42012-01-20 13:55:27 +0100368struct ieee80211_mgd_auth_data {
369 struct cfg80211_bss *bss;
370 unsigned long timeout;
371 int tries;
372 u16 algorithm, expected_transaction;
373
374 u8 key[WLAN_KEY_LEN_WEP104];
375 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100376 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100377 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100378
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300379 u16 sae_trans, sae_status;
380 size_t data_len;
381 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100382};
383
384struct ieee80211_mgd_assoc_data {
385 struct cfg80211_bss *bss;
386 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100387
388 unsigned long timeout;
389 int tries;
390
391 u16 capability;
392 u8 prev_bssid[ETH_ALEN];
393 u8 ssid[IEEE80211_MAX_SSID_LEN];
394 u8 ssid_len;
395 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100396 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300397 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100398 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100399 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100400
Johannes Berg9dde6422012-05-16 23:43:19 +0200401 u8 ap_ht_param;
402
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100403 struct ieee80211_vht_cap ap_vht_cap;
404
Jouni Malinen39404fe2016-10-27 00:42:05 +0300405 u8 fils_nonces[2 * FILS_NONCE_LEN];
406 u8 fils_kek[FILS_MAX_KEK_LEN];
407 size_t fils_kek_len;
408
Johannes Berg66e67e42012-01-20 13:55:27 +0100409 size_t ie_len;
410 u8 ie[];
411};
412
Johannes Berg02219b32014-10-07 10:38:50 +0300413struct ieee80211_sta_tx_tspec {
414 /* timestamp of the first packet in the time slice */
415 unsigned long time_slice_start;
416
417 u32 admitted_time; /* in usecs, unlike over the air */
418 u8 tsid;
419 s8 up; /* signed to be able to invalidate with -1 during teardown */
420
421 /* consumed TX time in microseconds in the time slice */
422 u32 consumed_tx_time;
423 enum {
424 TX_TSPEC_ACTION_NONE = 0,
425 TX_TSPEC_ACTION_DOWNGRADE,
426 TX_TSPEC_ACTION_STOP_DOWNGRADE,
427 } action;
428 bool downgraded;
429};
430
Johannes Bergeb1e0112017-02-15 09:49:26 +0100431DECLARE_EWMA(beacon_signal, 4, 4)
Johannes Berg338c17a2015-08-28 10:52:54 +0200432
Johannes Berg46900292009-02-15 12:44:28 +0100433struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100434 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200435 struct timer_list conn_mon_timer;
436 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530437 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200438 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530439 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200440 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200441 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100442
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100443 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200444 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300445 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100446 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100447 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200448
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100449 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100450 struct ieee80211_mgd_auth_data *auth_data;
451 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100452
Michael Brauna3e2f4b2016-10-15 13:28:19 +0200453 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Berg46900292009-02-15 12:44:28 +0100454
Jiri Bencf0706e82007-05-05 11:45:53 -0700455 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700456
Johannes Berg965beda2009-04-16 13:17:24 +0200457 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200458 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300459 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200460 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100461 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200462 driver_smps_mode; /* smps mode request */
463
464 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200465
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400466 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700467
Luciano Coelho0c21e632014-10-08 09:48:39 +0300468 bool csa_waiting_bcn;
Johannes Bergf84eaa12015-03-12 08:53:26 +0200469 bool csa_ignored_same_chan;
Luciano Coelho0c21e632014-10-08 09:48:39 +0300470
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300471 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200472 u32 beacon_crc;
473
Johannes Berg1672c0e32013-01-29 15:02:27 +0100474 bool status_acked;
475 bool status_received;
476 __le16 status_fc;
477
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200478 enum {
479 IEEE80211_MFP_DISABLED,
480 IEEE80211_MFP_OPTIONAL,
481 IEEE80211_MFP_REQUIRED
482 } mfp; /* management frame protection */
483
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200484 /*
485 * Bitmask of enabled u-apsd queues,
486 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
487 * to take effect.
488 */
489 unsigned int uapsd_queues;
490
491 /*
492 * Maximum number of buffered frames AP can deliver during a
493 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
494 * Needs a new association to take effect.
495 */
496 unsigned int uapsd_max_sp_len;
497
Jiri Bencf0706e82007-05-05 11:45:53 -0700498 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100499
500 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700501
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100502 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100503
Johannes Berg338c17a2015-08-28 10:52:54 +0200504 struct ewma_beacon_signal ave_beacon_signal;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700505
506 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300507 * Number of Beacon frames used in ave_beacon_signal. This can be used
508 * to avoid generating less reliable cqm events that would be based
509 * only on couple of received frames.
510 */
511 unsigned int count_beacon_signal;
512
Johannes Berg976bd9e2015-10-16 17:18:11 +0200513 /* Number of times beacon loss was invoked. */
514 unsigned int beacon_loss_count;
515
Jouni Malinen391a2002010-08-27 22:22:00 +0300516 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700517 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
518 * that triggered a cqm event. 0 indicates that no event has been
519 * generated for the current association.
520 */
521 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700522
523 /*
524 * State variables for keeping track of RSSI of the AP currently
525 * connected to and informing driver when RSSI has gone
526 * below/above a certain threshold.
527 */
528 int rssi_min_thold, rssi_max_thold;
529 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800530
531 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
532 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100533 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
534 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300535
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200536 /* TDLS support */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300537 u8 tdls_peer[ETH_ALEN] __aligned(2);
538 struct delayed_work tdls_peer_del_work;
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
540 struct sk_buff *teardown_skb; /* A copy to send through the AP */
541 spinlock_t teardown_lock; /* To lock changing teardown_skb */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +0200542 bool tdls_chan_switch_prohibited;
Arik Nemtsov82c0cc92015-08-15 22:39:46 +0300543 bool tdls_wider_bw_prohibited;
Johannes Berg02219b32014-10-07 10:38:50 +0300544
545 /* WMM-AC TSPEC support */
546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
547 /* Use a separate work struct so that we can do something here
548 * while the sdata->work is flushing the queues, for example.
549 * otherwise, in scenarios where we hardly get any traffic out
550 * on the BE queue, but there's a lot of VO traffic, we might
551 * get stuck in a downgraded situation and flush takes forever.
552 */
553 struct delayed_work tx_tspec_wk;
Jiri Bencf0706e82007-05-05 11:45:53 -0700554};
555
Johannes Berg46900292009-02-15 12:44:28 +0100556struct ieee80211_if_ibss {
557 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200558 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100559
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200560 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200561
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300562 u32 basic_rates;
563
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200564 bool fixed_bssid;
565 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200566 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100567
Antonio Quartulli267335d2012-01-31 20:25:47 +0100568 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200569 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100570
Felix Fietkau4d196e42012-03-01 11:23:37 +0100571 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200572 u8 ssid[IEEE80211_MAX_SSID_LEN];
573 u8 ssid_len, ie_len;
574 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200575 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100576
577 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200578 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100579 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100580
Simon Wunderlich822854b2013-06-28 10:39:59 +0200581 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
582 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
583
Johannes Berg8bf11d82011-12-15 11:17:37 +0100584 spinlock_t incomplete_lock;
585 struct list_head incomplete_stations;
586
Johannes Berg46900292009-02-15 12:44:28 +0100587 enum {
588 IEEE80211_IBSS_MLME_SEARCH,
589 IEEE80211_IBSS_MLME_JOINED,
590 } state;
591};
592
Javier Cardonadbf498f2012-03-31 11:31:32 -0700593/**
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100594 * struct ieee80211_if_ocb - OCB mode state
595 *
596 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
597 * @wrkq_flags: OCB deferred task action
598 * @incomplete_lock: delayed STA insertion lock
599 * @incomplete_stations: list of STAs waiting for delayed insertion
600 * @joined: indication if the interface is connected to an OCB network
601 */
602struct ieee80211_if_ocb {
603 struct timer_list housekeeping_timer;
604 unsigned long wrkq_flags;
605
606 spinlock_t incomplete_lock;
607 struct list_head incomplete_stations;
608
609 bool joined;
610};
611
612/**
Javier Cardonadbf498f2012-03-31 11:31:32 -0700613 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
614 *
615 * these declarations define the interface, which enables
616 * vendor-specific mesh synchronization
617 *
618 */
619struct ieee802_11_elems;
620struct ieee80211_mesh_sync_ops {
621 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
622 u16 stype,
623 struct ieee80211_mgmt *mgmt,
624 struct ieee802_11_elems *elems,
625 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800626
627 /* should be called with beacon_data under RCU read lock */
Masashi Honma445cd452016-12-08 10:15:51 +0900628 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
629 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700630 /* add other framework functions here */
631};
632
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700633struct mesh_csa_settings {
634 struct rcu_head rcu_head;
635 struct cfg80211_csa_settings settings;
636};
637
Johannes Berg472dbc42008-09-11 00:01:49 +0200638struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200639 struct timer_list housekeeping_timer;
640 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000641 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200642
Javier Cardona18889232009-08-10 12:15:52 -0700643 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700644 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200645
646 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
647 size_t mesh_id_len;
648 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000649 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200650 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000651 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200652 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000653 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700654 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000655 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700656 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000657 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000658 /* Local mesh Sequence Number */
659 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200660 /* Last used PREQ ID */
661 u32 preq_id;
662 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000663 /* Timestamp of last SN update */
664 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800665 /* Time when it's ok to send next PERR */
666 unsigned long next_perr;
667 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200668 unsigned long last_preq;
669 struct mesh_rmc *rmc;
670 spinlock_t mesh_preq_queue_lock;
671 struct mesh_preq_queue preq_queue;
672 int preq_queue_len;
673 struct mesh_stats mshstats;
674 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700675 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200676 u32 mesh_seqnum;
677 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700678 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800679 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700680 const u8 *ie;
681 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700682 enum {
683 IEEE80211_MESH_SEC_NONE = 0x0,
684 IEEE80211_MESH_SEC_AUTHED = 0x1,
685 IEEE80211_MESH_SEC_SECURED = 0x2,
686 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800687 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700688 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200689 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700690 s64 sync_offset_clockdrift_max;
691 spinlock_t sync_offset_lock;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100692 /* mesh power save */
693 enum nl80211_mesh_power_mode nonpeer_pm;
694 int ps_peers_light_sleep;
695 int ps_peers_deep_sleep;
696 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700697 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700698 struct mesh_csa_settings __rcu *csa;
Luciano Coelho0cb4d4d2014-01-13 19:42:58 +0200699 enum {
700 IEEE80211_MESH_CSA_ROLE_NONE,
701 IEEE80211_MESH_CSA_ROLE_INIT,
702 IEEE80211_MESH_CSA_ROLE_REPEATER,
703 } csa_role;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700704 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700705 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800706
707 /* offset from skb->data while building IE */
708 int meshconf_offset;
Bob Copeland2bdaf382016-02-28 20:03:56 -0500709
Bob Copeland60854fd2016-03-02 10:09:20 -0500710 struct mesh_table *mesh_paths;
711 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
Bob Copeland2bdaf382016-02-28 20:03:56 -0500712 int mesh_paths_generation;
713 int mpp_paths_generation;
Johannes Berg472dbc42008-09-11 00:01:49 +0200714};
Johannes Berg902acc72008-02-23 15:17:19 +0100715
716#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200717#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
718 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100719#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200720#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100721 do { } while (0)
722#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700723
Johannes Berg213cd112008-09-11 00:01:54 +0200724/**
725 * enum ieee80211_sub_if_data_flags - virtual interface flags
726 *
727 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
Johannes Berg213cd112008-09-11 00:01:54 +0200728 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
729 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
730 * associated stations and deliver multicast frames both
731 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200732 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100733 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200734 */
735enum ieee80211_sub_if_data_flags {
736 IEEE80211_SDATA_ALLMULTI = BIT(0),
Johannes Berg7986cf92009-03-21 17:08:43 +0100737 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
738 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200739 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100740 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200741};
742
Johannes Berg34d4bc42010-08-27 12:35:58 +0200743/**
744 * enum ieee80211_sdata_state_bits - virtual interface state bits
745 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
746 * mirrors netif_running() but is separate for interface type
747 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200748 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
749 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100750 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
751 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200752 */
753enum ieee80211_sdata_state_bits {
754 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200755 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100756 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200757};
758
Michal Kaziord01a1e62012-06-26 14:37:16 +0200759/**
760 * enum ieee80211_chanctx_mode - channel context configuration mode
761 *
762 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
763 * multiple interfaces
764 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
765 * only by a single interface. This can be used for example for
766 * non-fixed channel IBSS.
767 */
768enum ieee80211_chanctx_mode {
769 IEEE80211_CHANCTX_SHARED,
770 IEEE80211_CHANCTX_EXCLUSIVE
771};
772
Michal Kazior5bcae312014-06-25 12:35:06 +0200773/**
774 * enum ieee80211_chanctx_replace_state - channel context replacement state
775 *
776 * This is used for channel context in-place reservations that require channel
777 * context switch/swap.
778 *
779 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
780 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
781 * by a (not yet registered) channel context pointed by %replace_ctx.
782 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
783 * replaces an existing channel context pointed to by %replace_ctx.
784 */
785enum ieee80211_chanctx_replace_state {
786 IEEE80211_CHANCTX_REPLACE_NONE,
787 IEEE80211_CHANCTX_WILL_BE_REPLACED,
788 IEEE80211_CHANCTX_REPLACES_OTHER,
789};
790
Michal Kaziord01a1e62012-06-26 14:37:16 +0200791struct ieee80211_chanctx {
792 struct list_head list;
793 struct rcu_head rcu_head;
794
Michal Kazior484298a2014-04-09 15:29:26 +0200795 struct list_head assigned_vifs;
Michal Kaziore3afb922014-04-09 15:29:27 +0200796 struct list_head reserved_vifs;
Michal Kazior484298a2014-04-09 15:29:26 +0200797
Michal Kazior5bcae312014-06-25 12:35:06 +0200798 enum ieee80211_chanctx_replace_state replace_state;
799 struct ieee80211_chanctx *replace_ctx;
800
Michal Kaziord01a1e62012-06-26 14:37:16 +0200801 enum ieee80211_chanctx_mode mode;
Johannes Berg8a61af62012-12-13 17:42:30 +0100802 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200803
804 struct ieee80211_chanctx_conf conf;
805};
806
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800807struct mac80211_qos_map {
808 struct cfg80211_qos_map qos_map;
809 struct rcu_head rcu_head;
810};
811
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100812enum txq_info_flags {
813 IEEE80211_TXQ_STOP,
814 IEEE80211_TXQ_AMPDU,
Felix Fietkau6e0456b2016-03-03 22:59:00 +0100815 IEEE80211_TXQ_NO_AMSDU,
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100816};
817
Michal Kaziorfa962b92016-05-19 10:37:49 +0200818/**
819 * struct txq_info - per tid queue
820 *
821 * @tin: contains packets split into multiple flows
822 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
823 * a fq_flow which is already owned by a different tin
Michal Kazior5caa3282016-05-19 10:37:51 +0200824 * @def_cvars: codel vars for @def_flow
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +0200825 * @frags: used to keep fragments created after dequeue
Michal Kaziorfa962b92016-05-19 10:37:49 +0200826 */
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100827struct txq_info {
Michal Kaziorfa962b92016-05-19 10:37:49 +0200828 struct fq_tin tin;
829 struct fq_flow def_flow;
Michal Kazior5caa3282016-05-19 10:37:51 +0200830 struct codel_vars def_cvars;
Toke Høiland-Jørgensen8d51dbb2016-09-12 15:55:43 +0200831 struct codel_stats cstats;
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +0200832 struct sk_buff_head frags;
Felix Fietkauba8c3d62015-03-27 21:30:37 +0100833 unsigned long flags;
834
835 /* keep last! */
836 struct ieee80211_txq txq;
837};
838
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300839struct ieee80211_if_mntr {
840 u32 flags;
Aviya Erenfeld42bd20d2016-08-29 23:25:16 +0300841 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
Johannes Bergf64331d2017-04-13 13:28:18 +0200842
843 struct list_head list;
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300844};
845
Ayala Beker5953ff62016-09-20 17:31:19 +0300846/**
847 * struct ieee80211_if_nan - NAN state
848 *
849 * @conf: current NAN configuration
Ayala Beker167e33f2016-09-20 17:31:20 +0300850 * @func_ids: a bitmap of available instance_id's
Ayala Beker5953ff62016-09-20 17:31:19 +0300851 */
852struct ieee80211_if_nan {
853 struct cfg80211_nan_conf conf;
Ayala Beker167e33f2016-09-20 17:31:20 +0300854
855 /* protects function_inst_ids */
856 spinlock_t func_lock;
857 struct idr function_inst_ids;
Ayala Beker5953ff62016-09-20 17:31:19 +0300858};
859
Jiri Bencf0706e82007-05-05 11:45:53 -0700860struct ieee80211_sub_if_data {
861 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700862
863 struct wireless_dev wdev;
864
Johannes Berg11a843b2007-08-28 17:01:55 -0400865 /* keys */
866 struct list_head key_list;
867
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530868 /* count for keys needing tailroom space allocation */
869 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100870 int crypto_tx_tailroom_pending_dec;
871 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530872
Jiri Bencf0706e82007-05-05 11:45:53 -0700873 struct net_device *dev;
874 struct ieee80211_local *local;
875
Jiri Slaby13262ff2007-08-28 17:01:54 -0400876 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200877
Johannes Berg34d4bc42010-08-27 12:35:58 +0200878 unsigned long state;
879
Johannes Berg47846c92009-11-25 17:46:19 +0100880 char name[IFNAMSIZ];
881
Jiri Bencf0706e82007-05-05 11:45:53 -0700882 /* Fragment table for host-based reassembly */
883 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
884 unsigned int fragment_next;
885
Simon Wunderlichb53be792011-11-18 14:20:44 +0100886 /* TID bitmap for NoAck policy */
887 u16 noack_map;
888
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300889 /* bit field of ACM bits (BIT(802.1D tag)) */
890 u8 wmm_acm;
891
Johannes Berg40b275b2011-05-13 14:15:49 +0200892 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
893 struct ieee80211_key __rcu *default_unicast_key;
894 struct ieee80211_key __rcu *default_multicast_key;
895 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700896
Johannes Berg94778282008-10-10 13:21:59 +0200897 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300898 __be16 control_port_protocol;
899 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200900 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200901
Michal Kazior80a83cf2016-05-19 10:37:48 +0200902 atomic_t num_tx_queued;
Johannes Berg54bcbc62012-03-28 11:04:25 +0200903 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800904 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300905
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200906 struct work_struct csa_finalize_work;
Michal Kazior59af6922014-04-09 15:10:59 +0200907 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
Luciano Coelho33787fc2013-11-11 20:34:54 +0200908 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200909
Michal Kazior484298a2014-04-09 15:29:26 +0200910 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
Michal Kaziore3afb922014-04-09 15:29:27 +0200911 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
Michal Kazior484298a2014-04-09 15:29:26 +0200912
Luciano Coelho11335a52013-10-30 13:09:39 +0200913 /* context reservation -- protected with chanctx_mtx */
914 struct ieee80211_chanctx *reserved_chanctx;
915 struct cfg80211_chan_def reserved_chandef;
Michal Kazior09332482014-04-09 15:29:25 +0200916 bool reserved_radar_required;
Michal Kazior5bcae312014-06-25 12:35:06 +0200917 bool reserved_ready;
Luciano Coelho11335a52013-10-30 13:09:39 +0200918
Johannes Berg04ecd252012-09-11 14:34:12 +0200919 /* used to reconfigure hardware SM PS */
920 struct work_struct recalc_smps;
921
Johannes Berg64592c82010-06-10 10:21:31 +0200922 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200923 struct sk_buff_head skb_queue;
924
Johannes Berg04ecd252012-09-11 14:34:12 +0200925 u8 needed_rx_chains;
926 enum ieee80211_smps_mode smps_mode;
927
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200928 int user_power_level; /* in dBm */
929 int ap_power_level; /* in dBm */
930
Simon Wunderlich164eb022013-02-08 18:16:20 +0100931 bool radar_required;
932 struct delayed_work dfs_cac_timer_work;
933
Johannes Berg3e122be2008-07-09 14:40:34 +0200934 /*
935 * AP this belongs to: self in AP mode and
936 * corresponding AP in VLAN mode, NULL for
937 * all others (might be needed later in IBSS)
938 */
939 struct ieee80211_if_ap *bss;
940
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200941 /* bitmap of allowed (non-MCS) rate indexes for rate control */
Johannes Berg57fbcce2016-04-12 15:56:15 +0200942 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200943
Johannes Berg57fbcce2016-04-12 15:56:15 +0200944 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
945 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700946
Johannes Berg57fbcce2016-04-12 15:56:15 +0200947 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
948 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
Lorenzo Bianconib119ad62015-08-06 23:47:33 +0200949
Jiri Bencf0706e82007-05-05 11:45:53 -0700950 union {
951 struct ieee80211_if_ap ap;
952 struct ieee80211_if_wds wds;
953 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100954 struct ieee80211_if_managed mgd;
955 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200956 struct ieee80211_if_mesh mesh;
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100957 struct ieee80211_if_ocb ocb;
Aviya Erenfeldd8212182016-08-29 23:25:15 +0300958 struct ieee80211_if_mntr mntr;
Ayala Beker5953ff62016-09-20 17:31:19 +0300959 struct ieee80211_if_nan nan;
Jiri Bencf0706e82007-05-05 11:45:53 -0700960 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700961
962#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300963 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700964 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100965 struct dentry *default_unicast_key;
966 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200967 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100968 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700969#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100970
Johannes Berg32bfd352007-12-19 01:31:26 +0100971 /* must be last, dynamically sized area in this! */
972 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700973};
974
Johannes Berg32bfd352007-12-19 01:31:26 +0100975static inline
976struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
977{
978 return container_of(p, struct ieee80211_sub_if_data, vif);
979}
980
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200981static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
982 __acquires(&sdata->wdev.mtx)
983{
984 mutex_lock(&sdata->wdev.mtx);
985 __acquire(&sdata->wdev.mtx);
986}
987
988static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
989 __releases(&sdata->wdev.mtx)
990{
991 mutex_unlock(&sdata->wdev.mtx);
992 __release(&sdata->wdev.mtx);
993}
994
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100995#define sdata_dereference(p, sdata) \
996 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
997
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200998static inline void
999sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1000{
1001 lockdep_assert_held(&sdata->wdev.mtx);
1002}
1003
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001004static inline int
1005ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1006{
1007 switch (chandef->width) {
1008 case NL80211_CHAN_WIDTH_5:
1009 return 2;
1010 case NL80211_CHAN_WIDTH_10:
1011 return 1;
1012 default:
1013 return 0;
1014 }
1015}
1016
1017static inline int
1018ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1019{
1020 struct ieee80211_chanctx_conf *chanctx_conf;
1021 int shift = 0;
1022
1023 rcu_read_lock();
1024 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1025 if (chanctx_conf)
1026 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1027 rcu_read_unlock();
1028
1029 return shift;
1030}
1031
Michal Kazior08cf42e2014-07-16 12:12:15 +02001032struct ieee80211_rx_agg {
1033 u8 addr[ETH_ALEN];
1034 u16 tid;
1035};
1036
Johannes Bergc1475ca2010-06-10 10:21:37 +02001037enum sdata_queue_type {
1038 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1039 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1040 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
Michal Kazior08cf42e2014-07-16 12:12:15 +02001041 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1042 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
Johannes Bergc1475ca2010-06-10 10:21:37 +02001043};
1044
Jiri Bencf0706e82007-05-05 11:45:53 -07001045enum {
1046 IEEE80211_RX_MSG = 1,
1047 IEEE80211_TX_STATUS_MSG = 2,
1048};
1049
Kalle Valoce7c9112008-12-18 23:35:20 +02001050enum queue_stop_reason {
1051 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +02001052 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +01001053 IEEE80211_QUEUE_STOP_REASON_CSA,
1054 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +01001055 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +02001056 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -06001057 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001058 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Arik Nemtsovdb67d662014-06-11 17:18:24 +03001059 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
Liad Kaufmanb6da9112014-11-19 13:47:38 +02001060 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001061
1062 IEEE80211_QUEUE_STOP_REASONS,
Kalle Valoce7c9112008-12-18 23:35:20 +02001063};
1064
Luciano Coelho65a65382010-12-21 16:02:17 +02001065#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +01001066struct tpt_led_trigger {
Johannes Berge1e54062010-11-30 08:58:45 +01001067 char name[32];
1068 const struct ieee80211_tpt_blink *blink_table;
1069 unsigned int blink_table_len;
1070 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +01001071 unsigned long prev_traffic;
1072 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +01001073 unsigned int active, want;
1074 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +01001075};
Luciano Coelho65a65382010-12-21 16:02:17 +02001076#endif
Johannes Berge1e54062010-11-30 08:58:45 +01001077
Helmut Schaa142b9f52009-07-23 13:18:01 +02001078/**
1079 * mac80211 scan flags - currently active scan mode
1080 *
1081 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1082 * well be on the operating channel
1083 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1084 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -07001085 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1086 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +02001087 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1088 * that the scan completed.
1089 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1090 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001091 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1092 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +02001093 */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001094enum {
1095 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001096 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -07001097 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +02001098 SCAN_COMPLETED,
1099 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001100 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001101};
1102
1103/**
1104 * enum mac80211_scan_state - scan state machine states
1105 *
1106 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1107 * determines if we should keep on scanning or switch back to the
1108 * operating channel
1109 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1110 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +01001111 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1112 * send out data
1113 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -07001114 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +02001115 */
1116enum mac80211_scan_state {
1117 SCAN_DECISION,
1118 SCAN_SET_CHANNEL,
1119 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +01001120 SCAN_SUSPEND,
1121 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -07001122 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +02001123};
1124
Jiri Bencf0706e82007-05-05 11:45:53 -07001125struct ieee80211_local {
1126 /* embed the driver visible part.
1127 * don't cast (use the static inlines below), but we keep
1128 * it first anyway so they become a no-op */
1129 struct ieee80211_hw hw;
1130
Michal Kaziorfa962b92016-05-19 10:37:49 +02001131 struct fq fq;
Michal Kazior5caa3282016-05-19 10:37:51 +02001132 struct codel_vars *cvars;
1133 struct codel_params cparams;
Michal Kaziorfa962b92016-05-19 10:37:49 +02001134
Jiri Bencf0706e82007-05-05 11:45:53 -07001135 const struct ieee80211_ops *ops;
1136
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001137 /*
1138 * private workqueue to mac80211. mac80211 makes this accessible
1139 * via ieee80211_queue_work()
1140 */
1141 struct workqueue_struct *workqueue;
1142
Johannes Berge4e72fb2009-03-23 17:28:42 +01001143 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Luciano Coelhocca07b02014-06-13 16:30:05 +03001144 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
Johannes Berg96f5e662009-02-12 00:51:53 +01001145 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +02001146 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +01001147
Jiri Bencf0706e82007-05-05 11:45:53 -07001148 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +01001149 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +01001150 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001151 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1152 fif_probe_req;
1153 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001154 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001155
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001156 bool wiphy_ciphers_allocated;
1157
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001158 bool use_chanctx;
1159
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001160 /* protects the aggregated multicast list and filter calls */
1161 spinlock_t filter_lock;
1162
Johannes Berg3ac64be2009-08-17 16:16:53 +02001163 /* used for uploading changed mc list */
1164 struct work_struct reconfig_filter;
1165
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001166 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001167 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001168
Johannes Bergd0709a62008-02-25 16:27:46 +01001169 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001170
1171 /*
1172 * suspended is true if we finished all the suspend _and_ we have
1173 * not yet come up from resume. This is to be used by mac80211
1174 * to ensure driver sanity during suspend and mac80211's own
1175 * sanity. It can eventually be used for WoW as well.
1176 */
1177 bool suspended;
1178
1179 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001180 * Resuming is true while suspended, but when we're reprogramming the
1181 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1182 * again even though some other parts of the stack are still suspended
1183 * and we still drop received frames to avoid waking the stack.
1184 */
1185 bool resuming;
1186
1187 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001188 * quiescing is true during the suspend process _only_ to
1189 * ease timer cancelling etc.
1190 */
1191 bool quiescing;
1192
Johannes Bergea77f122009-08-21 14:44:45 +02001193 /* device is started */
1194 bool started;
1195
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001196 /* device is during a HW reconfig */
1197 bool in_reconfig;
1198
Johannes Bergeecc4802011-05-04 15:37:29 +02001199 /* wowlan is enabled -- don't reconfig on resume */
1200 bool wowlan;
1201
Simon Wunderlich164eb022013-02-08 18:16:20 +01001202 struct work_struct radar_detected_work;
1203
Johannes Berg04ecd252012-09-11 14:34:12 +02001204 /* number of RX chains the hardware has */
1205 u8 rx_chains;
1206
Johannes Bergb306f452007-07-10 19:32:08 +02001207 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001208
Jiri Bencf0706e82007-05-05 11:45:53 -07001209 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1210 * added to skb_queue will be processed, but frames in
1211 * skb_queue_unreliable may be dropped if the total length of these
1212 * queues increases over the limit. */
1213#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1214 struct tasklet_struct tasklet;
1215 struct sk_buff_head skb_queue;
1216 struct sk_buff_head skb_queue_unreliable;
1217
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001218 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001219
Johannes Bergd0709a62008-02-25 16:27:46 +01001220 /* Station data */
1221 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001222 * The mutex only protects the list, hash table and
1223 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001224 */
Johannes Berg34e89502010-02-03 13:59:58 +01001225 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001226 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001227 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001228 struct list_head sta_list;
Herbert Xu83e7e4c2016-09-19 19:00:10 +08001229 struct rhltable sta_hash;
Jiri Bencf0706e82007-05-05 11:45:53 -07001230 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001231 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001232
Johannes Berg2a577d92009-03-23 17:28:37 +01001233 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001234 struct tasklet_struct tx_pending_tasklet;
1235
Johannes Berga6a67db2010-06-10 10:21:41 +02001236 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001237
Johannes Bergdf140462015-04-22 14:40:58 +02001238 /* number of interfaces with allmulti RX */
1239 atomic_t iff_allmultis;
Jiri Bencf0706e82007-05-05 11:45:53 -07001240
1241 struct rate_control_ref *rate_ctrl;
1242
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001243 struct crypto_cipher *wep_tx_tfm;
1244 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001245 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001246
Johannes Bergc771c9d2009-01-23 22:54:03 +01001247 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001248 struct list_head interfaces;
Johannes Bergf64331d2017-04-13 13:28:18 +02001249 struct list_head mon_list; /* only that are IFF_UP && !cooked */
Johannes Bergc771c9d2009-01-23 22:54:03 +01001250 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001251
Johannes Bergb16bd152008-04-11 21:40:35 +02001252 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001253 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001254 * key pointers (write access, they're RCU.)
1255 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001256 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001257
Johannes Berga1699b72010-07-30 16:46:07 +02001258 /* mutex for scan and work locking */
1259 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001260
Johannes Bergc2b13452008-09-11 00:01:55 +02001261 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001262 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001263 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001264 struct cfg80211_scan_request *int_scan_req;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001265 struct cfg80211_scan_request __rcu *scan_req;
David Spinadelc56ef672014-02-05 15:21:13 +02001266 struct ieee80211_scan_request *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001267 struct cfg80211_chan_def scan_chandef;
Johannes Berg57fbcce2016-04-12 15:56:15 +02001268 enum nl80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001269 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001270 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001271 int hw_scan_ies_bufsize;
Avraham Stern7947d3e2016-07-05 15:23:12 +03001272 struct cfg80211_scan_info scan_info;
Johannes Berg8318d782008-01-24 19:38:38 +01001273
Luciano Coelho85a99942011-05-12 16:28:29 +03001274 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001275 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001276 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
Johannes Berga344d672014-06-12 22:24:31 +02001277 u8 scan_addr[ETH_ALEN];
Luciano Coelho79f460c2011-05-11 17:09:36 +03001278
Helmut Schaadf13cce2010-02-24 14:19:21 +01001279 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001280 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001281 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001282 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001283 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001284 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001285
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001286 /* Temporary remain-on-channel for off-channel operations */
1287 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001288
Michal Kaziord01a1e62012-06-26 14:37:16 +02001289 /* channel contexts */
1290 struct list_head chanctx_list;
1291 struct mutex chanctx_mtx;
1292
Johannes Bergc206ca62015-04-22 20:47:28 +02001293#ifdef CONFIG_MAC80211_LEDS
Johannes Berg8d5c2582015-04-23 12:19:22 +02001294 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1295 struct led_trigger tpt_led;
1296 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1297 atomic_t radio_led_active, tpt_led_active;
Johannes Bergc206ca62015-04-22 20:47:28 +02001298 struct tpt_led_trigger *tpt_led_trigger;
Johannes Bergc206ca62015-04-22 20:47:28 +02001299#endif
1300
1301#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
Jiri Bencf0706e82007-05-05 11:45:53 -07001302 /* SNMP counters */
1303 /* dot11CountersTable */
1304 u32 dot11TransmittedFragmentCount;
1305 u32 dot11MulticastTransmittedFrameCount;
1306 u32 dot11FailedCount;
1307 u32 dot11RetryCount;
1308 u32 dot11MultipleRetryCount;
1309 u32 dot11FrameDuplicateCount;
1310 u32 dot11ReceivedFragmentCount;
1311 u32 dot11MulticastReceivedFrameCount;
1312 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001313
Jiri Bencf0706e82007-05-05 11:45:53 -07001314 /* TX/RX handler statistics */
1315 unsigned int tx_handlers_drop;
1316 unsigned int tx_handlers_queued;
Jiri Bencf0706e82007-05-05 11:45:53 -07001317 unsigned int tx_handlers_drop_wep;
1318 unsigned int tx_handlers_drop_not_assoc;
1319 unsigned int tx_handlers_drop_unauth_port;
1320 unsigned int rx_handlers_drop;
1321 unsigned int rx_handlers_queued;
1322 unsigned int rx_handlers_drop_nullfunc;
1323 unsigned int rx_handlers_drop_defrag;
Jiri Bencf0706e82007-05-05 11:45:53 -07001324 unsigned int tx_expand_skb_head;
1325 unsigned int tx_expand_skb_head_cloned;
Johannes Bergf1160432015-04-22 20:25:20 +02001326 unsigned int rx_expand_skb_head_defrag;
Jiri Bencf0706e82007-05-05 11:45:53 -07001327 unsigned int rx_handlers_fragments;
1328 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001329#define I802_DEBUG_INC(c) (c)++
1330#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1331#define I802_DEBUG_INC(c) do { } while (0)
1332#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1333
1334
Jiri Bencf0706e82007-05-05 11:45:53 -07001335 int total_ps_buffered; /* total number of all buffered unicast and
1336 * multicast packets for power saving stations
1337 */
Kalle Valo520eb822008-12-18 23:35:27 +02001338
Kalle Valo572e0012009-02-10 17:09:31 +02001339 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001340 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001341 /*
1342 * PS can only be enabled when we have exactly one managed
1343 * interface (and monitors) in PS, this then points there.
1344 */
1345 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001346 struct work_struct dynamic_ps_enable_work;
1347 struct work_struct dynamic_ps_disable_work;
1348 struct timer_list dynamic_ps_timer;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001349 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001350 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001351
Juuso Oikarinenff616382010-06-09 09:51:52 +03001352 /*
1353 * The dynamic ps timeout configured from user space via WEXT -
1354 * this will override whatever chosen by mac80211 internally.
1355 */
1356 int dynamic_ps_forced_timeout;
1357
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001358 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001359
Johannes Berg0f782312009-12-01 13:37:02 +01001360 enum ieee80211_smps_mode smps_mode;
1361
Johannes Bergf2753dd2009-04-14 10:09:24 +02001362 struct work_struct restart_work;
1363
Jiri Bence9f207f2007-05-05 11:46:38 -07001364#ifdef CONFIG_MAC80211_DEBUGFS
1365 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001366 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001367 struct dentry *keys;
1368 } debugfs;
1369#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001370
Johannes Berg2eb278e2012-06-05 14:28:42 +02001371 /*
1372 * Remain-on-channel support
1373 */
Johannes Bergaaa016c2015-11-23 23:53:51 +01001374 struct delayed_work roc_work;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001375 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001376 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001377 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001378 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001379
Johannes Berga729cff2011-11-06 14:13:34 +01001380 struct idr ack_status_frames;
1381 spinlock_t ack_status_lock;
1382
Johannes Bergf142c6b2012-06-18 20:07:15 +02001383 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1384
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001385 /* virtual monitor interface */
1386 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001387 struct cfg80211_chan_def monitor_chandef;
Luciano Coelhoe9a21942014-10-08 09:48:36 +03001388
1389 /* extended capabilities provided by mac80211 */
1390 u8 ext_capa[8];
Arik Nemtsovc8ff71e2015-07-08 15:41:45 +03001391
1392 /* TDLS channel switch */
1393 struct work_struct tdls_chsw_work;
1394 struct sk_buff_head skb_queue_tdls_chsw;
Jiri Bencf0706e82007-05-05 11:45:53 -07001395};
1396
Johannes Berg3e122be2008-07-09 14:40:34 +02001397static inline struct ieee80211_sub_if_data *
1398IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1399{
Johannes Berg3e122be2008-07-09 14:40:34 +02001400 return netdev_priv(dev);
1401}
1402
Johannes Berg71bbc992012-06-15 15:30:18 +02001403static inline struct ieee80211_sub_if_data *
1404IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1405{
1406 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1407}
1408
Mohammed Shafi Shajakhan21a8e9d2017-04-27 12:45:38 +05301409static inline struct ieee80211_supported_band *
1410ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1411{
1412 struct ieee80211_local *local = sdata->local;
1413 struct ieee80211_chanctx_conf *chanctx_conf;
1414 enum nl80211_band band;
1415
1416 rcu_read_lock();
1417 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1418
1419 if (WARN_ON(!chanctx_conf)) {
1420 rcu_read_unlock();
1421 return NULL;
1422 }
1423
1424 band = chanctx_conf->def.chan->band;
1425 rcu_read_unlock();
1426
1427 return local->hw.wiphy->bands[band];
1428}
1429
Johannes Bergc1475ca2010-06-10 10:21:37 +02001430/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001431struct ieee80211_ra_tid {
1432 u8 ra[ETH_ALEN];
1433 u16 tid;
1434};
1435
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001436/* this struct holds the value parsing from channel switch IE */
1437struct ieee80211_csa_ie {
1438 struct cfg80211_chan_def chandef;
1439 u8 mode;
1440 u8 count;
1441 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001442 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001443};
1444
Johannes Bergdd769862011-11-18 16:54:50 +01001445/* Parsed Information Elements */
1446struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001447 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001448 size_t total_len;
1449
1450 /* pointers to IEs */
Arik Nemtsov53837582014-11-09 18:50:18 +02001451 const struct ieee80211_tdls_lnkie *lnk_id;
1452 const struct ieee80211_ch_switch_timing *ch_sw_timing;
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001453 const u8 *ext_capab;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001454 const u8 *ssid;
1455 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001456 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001457 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001458 const u8 *challenge;
1459 const u8 *rsn;
1460 const u8 *erp_info;
1461 const u8 *ext_supp_rates;
1462 const u8 *wmm_info;
1463 const u8 *wmm_param;
1464 const struct ieee80211_ht_cap *ht_cap_elem;
1465 const struct ieee80211_ht_operation *ht_operation;
1466 const struct ieee80211_vht_cap *vht_cap_elem;
1467 const struct ieee80211_vht_operation *vht_operation;
1468 const struct ieee80211_meshconf_ie *mesh_config;
1469 const u8 *mesh_id;
1470 const u8 *peering;
1471 const __le16 *awake_window;
1472 const u8 *preq;
1473 const u8 *prep;
1474 const u8 *perr;
1475 const struct ieee80211_rann_ie *rann;
1476 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001477 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001478 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001479 const u8 *country_elem;
1480 const u8 *pwr_constr_elem;
Steinar H. Gundersonc8d65912014-09-03 06:48:37 -07001481 const u8 *cisco_dtpc_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001482 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001483 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001484 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001485 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Avraham Sterne38a0172017-04-26 10:58:47 +03001486 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001487
1488 /* length of them, respectively */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001489 u8 ext_capab_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001490 u8 ssid_len;
1491 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001492 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001493 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001494 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001495 u8 ext_supp_rates_len;
1496 u8 wmm_info_len;
1497 u8 wmm_param_len;
1498 u8 mesh_id_len;
1499 u8 peering_len;
1500 u8 preq_len;
1501 u8 prep_len;
1502 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001503 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001504
1505 /* whether a parse error occurred while retrieving these elements */
1506 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001507};
1508
Jiri Bencf0706e82007-05-05 11:45:53 -07001509static inline struct ieee80211_local *hw_to_local(
1510 struct ieee80211_hw *hw)
1511{
1512 return container_of(hw, struct ieee80211_local, hw);
1513}
1514
Felix Fietkauba8c3d62015-03-27 21:30:37 +01001515static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1516{
1517 return container_of(txq, struct txq_info, txq);
1518}
Jiri Bencf0706e82007-05-05 11:45:53 -07001519
Toke Høiland-Jørgensenbb42f2d2016-09-22 19:04:20 +02001520static inline bool txq_has_queue(struct ieee80211_txq *txq)
1521{
1522 struct txq_info *txqi = to_txq_info(txq);
1523
1524 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1525}
1526
Johannes Berg571ecf62007-07-27 15:43:22 +02001527static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1528{
Joe Perchesb203ca32012-05-08 18:56:52 +00001529 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001530 is_broadcast_ether_addr(raddr);
1531}
1532
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001533static inline bool
1534ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1535{
1536 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1537 status->flag & RX_FLAG_MACTIME_END);
Johannes Bergf4a0f0c2016-01-25 15:46:34 +02001538 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1539 return true;
Johannes Bergda6a4352017-04-26 12:14:59 +02001540 /* can't handle non-legacy preamble yet */
Johannes Bergf4a0f0c2016-01-25 15:46:34 +02001541 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
Johannes Bergda6a4352017-04-26 12:14:59 +02001542 status->encoding != RX_ENC_LEGACY)
Johannes Bergf4a0f0c2016-01-25 15:46:34 +02001543 return true;
1544 return false;
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001545}
Johannes Berg571ecf62007-07-27 15:43:22 +02001546
Michael Braun72f15d52016-10-10 19:12:21 +02001547void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1548void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1549
1550/* This function returns the number of multicast stations connected to this
1551 * interface. It returns -1 if that number is not tracked, that is for netdevs
1552 * not in AP or AP_VLAN mode or when using 4addr.
1553 */
1554static inline int
1555ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1556{
1557 if (sdata->vif.type == NL80211_IFTYPE_AP)
1558 return atomic_read(&sdata->u.ap.num_mcast_sta);
1559 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1560 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1561 return -1;
1562}
1563
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001564u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1565 struct ieee80211_rx_status *status,
1566 unsigned int mpdu_len,
1567 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001568int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001569void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001570void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1571 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001572void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001573u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001574
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001575u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
Johannes Berg5ee00db2015-11-24 14:25:49 +01001576int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1577 u64 *cookie, gfp_t gfp);
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001578
Johannes Berg49ddf8e2016-03-31 20:02:10 +03001579void ieee80211_check_fast_rx(struct sta_info *sta);
1580void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1581void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1582void ieee80211_clear_fast_rx(struct sta_info *sta);
1583
Johannes Berg46900292009-02-15 12:44:28 +01001584/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001585void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001586int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1587 struct cfg80211_auth_request *req);
1588int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1589 struct cfg80211_assoc_request *req);
1590int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001591 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001592int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001593 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001594void ieee80211_send_pspoll(struct ieee80211_local *local,
1595 struct ieee80211_sub_if_data *sdata);
Johannes Berg4a733ef2015-10-14 18:02:43 +02001596void ieee80211_recalc_ps(struct ieee80211_local *local);
Eliad Pellerab095872012-07-27 12:33:22 +03001597void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001598int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001599void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1600void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1601 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001602void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001603void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001604void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001605void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1606 __le16 fc, bool acked);
Johannes Berg1a1cb742014-03-19 09:55:55 +01001607void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001608void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg02219b32014-10-07 10:38:50 +03001609void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001610
Johannes Berg46900292009-02-15 12:44:28 +01001611/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001612void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1613void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001614void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1615 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001616int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1617 struct cfg80211_ibss_params *params);
1618int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001619void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1620void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1621 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001622int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1623 struct cfg80211_csa_settings *csa_settings);
1624int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1625void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001626
Rostislav Lisovy239281f2014-11-03 10:33:19 +01001627/* OCB code */
1628void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1629void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1630 const u8 *bssid, const u8 *addr, u32 supp_rates);
1631void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1632int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1633 struct ocb_setup *setup);
1634int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1635
Johannes Berg1fa57d02010-06-10 10:21:32 +02001636/* mesh code */
1637void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1638void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1639 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001640int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
Luciano Coelho66e01cf2014-01-13 19:43:00 +02001641 struct cfg80211_csa_settings *csa_settings);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001642int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001643
Johannes Berg9c6bd792008-09-11 00:01:52 +02001644/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001645void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001646int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1647 const u8 *ssid, u8 ssid_len,
Janusz.Dziedzic@tieto.com76bed0f2015-03-20 06:37:00 +01001648 struct ieee80211_channel **channels,
1649 unsigned int n_channels,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001650 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001651int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001652 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001653void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001654void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001655void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001656
Johannes Berg0a51b272008-09-08 17:44:25 +02001657void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001658struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001659ieee80211_bss_info_update(struct ieee80211_local *local,
1660 struct ieee80211_rx_status *rx_status,
1661 struct ieee80211_mgmt *mgmt,
1662 size_t len,
1663 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001664 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001665void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001666 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001667
Luciano Coelho79f460c2011-05-11 17:09:36 +03001668/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001669int
1670__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1671 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001672int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1673 struct cfg80211_sched_scan_request *req);
Eliad Peller0d440ea2015-10-25 10:59:33 +02001674int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
Johannes Bergf6837ba82014-04-30 14:19:04 +02001675void ieee80211_sched_scan_end(struct ieee80211_local *local);
Luciano Coelho85a99942011-05-12 16:28:29 +03001676void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001677
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001678/* off-channel/mgmt-tx */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001679void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1680void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001681void ieee80211_roc_setup(struct ieee80211_local *local);
1682void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001683void ieee80211_roc_purge(struct ieee80211_local *local,
1684 struct ieee80211_sub_if_data *sdata);
Johannes Berga2fcfccb2015-11-23 17:18:35 +01001685int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1686 struct ieee80211_channel *chan,
1687 unsigned int duration, u64 *cookie);
1688int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1689 struct wireless_dev *wdev, u64 cookie);
1690int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1691 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1692int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1693 struct wireless_dev *wdev, u64 cookie);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001694
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001695/* channel switch handling */
1696void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001697int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1698 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001699
Johannes Berg3e122be2008-07-09 14:40:34 +02001700/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001701int ieee80211_iface_init(void);
1702void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001703int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Tom Gundersen6bab2e192015-03-18 11:13:39 +01001704 unsigned char name_assign_type,
Johannes Berg84efbb82012-06-16 00:00:26 +02001705 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001706 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001707int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001708 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001709void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001710void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001711u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001712void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001713void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1714 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001715int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1716void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001717int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1718void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001719
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001720bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
Lorenzo Bianconidb82d8a2015-01-14 12:55:08 +01001721void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1722 bool update_bss);
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001723
Johannes Berg9607e6b2009-12-23 13:15:31 +01001724static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1725{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001726 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001727}
1728
Johannes Berge2ebc742007-07-27 15:43:22 +02001729/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001730void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1731void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001732netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1733 struct net_device *dev);
1734netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1735 struct net_device *dev);
Liad Kaufman24d342c2014-11-09 18:50:07 +02001736void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1737 struct net_device *dev,
1738 u32 info_flags);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001739void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1740 struct sk_buff_head *skbs);
Johannes Berg7528ec52014-11-09 18:50:11 +02001741struct sk_buff *
1742ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1743 struct sk_buff *skb, u32 info_flags);
Helmut Schaa4dc792b2015-09-02 13:23:30 +02001744void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1745 struct ieee80211_supported_band *sband,
1746 int retry_count, int shift, bool send_to_cooked);
Johannes Berge2ebc742007-07-27 15:43:22 +02001747
Johannes Berg17c18bf2015-03-21 15:25:43 +01001748void ieee80211_check_fast_xmit(struct sta_info *sta);
1749void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1750void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1751void ieee80211_clear_fast_xmit(struct sta_info *sta);
1752
Johannes Bergde1ede72008-09-09 14:42:50 +02001753/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001754void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1755 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001756bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001757 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001758 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001759 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001760void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1761 const u8 *da, u16 tid,
1762 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001763int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1764 enum ieee80211_smps_mode smps, const u8 *da,
1765 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001766void ieee80211_request_smps_ap_work(struct work_struct *work);
1767void ieee80211_request_smps_mgd_work(struct work_struct *work);
1768bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1769 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001770
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001771void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001772 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001773void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001774 u16 initiator, u16 reason, bool stop);
Michal Kazior08cf42e2014-07-16 12:12:15 +02001775void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1776 u8 dialog_token, u16 timeout,
1777 u16 start_seq_num, u16 ba_policy, u16 tid,
Michal Kazior4549cf22014-09-02 14:05:10 +02001778 u16 buf_size, bool tx, bool auto_seq);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001779void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1780 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001781void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1782 struct sta_info *sta,
1783 struct ieee80211_mgmt *mgmt, size_t len);
1784void ieee80211_process_addba_resp(struct ieee80211_local *local,
1785 struct sta_info *sta,
1786 struct ieee80211_mgmt *mgmt,
1787 size_t len);
1788void ieee80211_process_addba_request(struct ieee80211_local *local,
1789 struct sta_info *sta,
1790 struct ieee80211_mgmt *mgmt,
1791 size_t len);
1792
Johannes Berg849b7962009-02-10 21:25:54 +01001793int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001794 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001795int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001796 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001797void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1798void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001799void ieee80211_ba_session_work(struct work_struct *work);
1800void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001801void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001802
Johannes Berg04ecd252012-09-11 14:34:12 +02001803u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1804
Mahesh Palivela818255e2012-10-10 11:33:04 +00001805/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001806void
1807ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1808 struct ieee80211_supported_band *sband,
1809 const struct ieee80211_vht_cap *vht_cap_ie,
1810 struct sta_info *sta);
Eliad Peller1c45c5c2014-12-14 11:05:51 +02001811enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001812enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001813void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Arik Nemtsov59021c62016-03-02 23:28:32 +02001814enum ieee80211_sta_rx_bandwidth
1815ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1816enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1817void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Sara Sharon23a1f8d2015-12-08 16:04:31 +02001818void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1819 struct ieee80211_mgmt *mgmt);
Marek Kwaczynskib1bce14a2014-02-03 14:44:44 +01001820u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1821 struct sta_info *sta, u8 opmode,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001822 enum nl80211_band band);
Johannes Berg0af83d32012-12-27 18:55:36 +01001823void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1824 struct sta_info *sta, u8 opmode,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001825 enum nl80211_band band);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001826void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1827 struct ieee80211_sta_vht_cap *vht_cap);
Lorenzo Bianconib119ad62015-08-06 23:47:33 +02001828void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1829 u16 vht_mask[NL80211_VHT_NSS_MAX]);
Johannes Berg4a342152013-02-07 11:58:58 +01001830
Johannes Berg39192c02008-09-09 14:49:03 +02001831/* Spectrum management */
1832void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1833 struct ieee80211_mgmt *mgmt,
1834 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001835/**
1836 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1837 * @sdata: the sdata of the interface which has received the frame
1838 * @elems: parsed 802.11 elements received with the frame
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001839 * @current_band: indicates the current band
1840 * @sta_flags: contains information about own capabilities and restrictions
1841 * to decide which channel switch announcements can be accepted. Only the
1842 * following subset of &enum ieee80211_sta_flags are evaluated:
1843 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1844 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1845 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001846 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001847 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1848 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001849 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1850 */
1851int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
Luciano Coelho84469a42014-10-28 13:33:04 +02001852 struct ieee802_11_elems *elems,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001853 enum nl80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001854 u32 sta_flags, u8 *bssid,
1855 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001856
Johannes Bergf2753dd2009-04-14 10:09:24 +02001857/* Suspend/resume and hw reconfiguration */
1858int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001859void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001860
Johannes Bergeecc4802011-05-04 15:37:29 +02001861int __ieee80211_suspend(struct ieee80211_hw *hw,
1862 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001863
1864static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1865{
John W. Linville85f72bc2010-09-01 16:12:28 -04001866 struct ieee80211_local *local = hw_to_local(hw);
1867
Luciano Coelho9120d942015-01-24 10:30:02 +02001868 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1869 !test_bit(SCAN_COMPLETED, &local->scanning),
John W. Linville85f72bc2010-09-01 16:12:28 -04001870 "%s: resume with hardware scan still in progress\n",
1871 wiphy_name(hw->wiphy));
1872
Johannes Bergf2753dd2009-04-14 10:09:24 +02001873 return ieee80211_reconfig(hw_to_local(hw));
1874}
Bob Copeland665af4f2009-01-19 11:20:53 -05001875
Johannes Bergc2d15602007-07-27 15:43:23 +02001876/* utility functions/constants */
Johannes Berg8a47cea2014-01-20 23:55:44 +01001877extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
Johannes Berg57fbcce2016-04-12 15:56:15 +02001878int ieee80211_frame_duration(enum nl80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001879 int rate, int erp, int short_preamble,
1880 int shift);
Johannes Berg3abead52012-03-02 15:56:59 +01001881void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
Johannes Bergcec66282015-10-22 17:46:04 +02001882 bool bss_notify, bool enable_qos);
Johannes Berg7c107702015-03-20 14:18:27 +01001883void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1884 struct sta_info *sta, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001885
Johannes Berg55de9082012-07-26 17:24:39 +02001886void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1887 struct sk_buff *skb, int tid,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001888 enum nl80211_band band);
Johannes Berg55de9082012-07-26 17:24:39 +02001889
1890static inline void
1891ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1892 struct sk_buff *skb, int tid,
Johannes Berg57fbcce2016-04-12 15:56:15 +02001893 enum nl80211_band band)
Johannes Berg55de9082012-07-26 17:24:39 +02001894{
1895 rcu_read_lock();
1896 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1897 rcu_read_unlock();
1898}
1899
1900static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1901 struct sk_buff *skb, int tid)
1902{
1903 struct ieee80211_chanctx_conf *chanctx_conf;
1904
1905 rcu_read_lock();
1906 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1907 if (WARN_ON(!chanctx_conf)) {
1908 rcu_read_unlock();
1909 kfree_skb(skb);
1910 return;
1911 }
1912
1913 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001914 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001915 rcu_read_unlock();
1916}
1917
1918static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001919 struct sk_buff *skb)
1920{
1921 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1922 ieee80211_tx_skb_tid(sdata, skb, 7);
1923}
1924
Johannes Berg35d865a2013-05-28 10:54:03 +02001925u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001926 struct ieee802_11_elems *elems,
1927 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001928static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1929 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001930 struct ieee802_11_elems *elems)
1931{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001932 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001933}
1934
Michal Kazior83eb9352014-07-16 12:09:31 +02001935
Johannes Berg02219b32014-10-07 10:38:50 +03001936extern const int ieee802_1d_to_ac[8];
1937
1938static inline int ieee80211_ac_from_tid(int tid)
1939{
1940 return ieee802_1d_to_ac[tid & 7];
1941}
1942
Kalle Valo520eb822008-12-18 23:35:27 +02001943void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1944void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1945void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001946void ieee80211_send_nullfunc(struct ieee80211_local *local,
1947 struct ieee80211_sub_if_data *sdata,
Johannes Berg076cdcb2015-09-24 16:14:55 +02001948 bool powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001949void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1950 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001951void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Johannes Berg02219b32014-10-07 10:38:50 +03001952 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
Kalle Valo520eb822008-12-18 23:35:27 +02001953
Kalle Valoce7c9112008-12-18 23:35:20 +02001954void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001955 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001956 enum queue_stop_reason reason,
1957 bool refcounted);
Luciano Coelho26da23b2014-06-13 16:30:06 +03001958void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1959 struct ieee80211_sub_if_data *sdata,
1960 enum queue_stop_reason reason);
1961void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1962 struct ieee80211_sub_if_data *sdata,
1963 enum queue_stop_reason reason);
Kalle Valoce7c9112008-12-18 23:35:20 +02001964void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001965 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001966 enum queue_stop_reason reason,
1967 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001968void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001969 enum queue_stop_reason reason,
1970 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001971void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001972 enum queue_stop_reason reason,
1973 bool refcounted);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001974void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001975void ieee80211_add_pending_skb(struct ieee80211_local *local,
1976 struct sk_buff *skb);
Johannes Berge3685e02014-02-20 11:19:58 +01001977void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1978 struct sk_buff_head *skbs);
Johannes Berg39ecc012013-02-13 12:11:00 +01001979void ieee80211_flush_queues(struct ieee80211_local *local,
Emmanuel Grumbach3b24f4c2015-01-07 15:42:39 +02001980 struct ieee80211_sub_if_data *sdata, bool drop);
Liad Kaufman4f9610d2014-11-09 18:50:21 +02001981void __ieee80211_flush_queues(struct ieee80211_local *local,
1982 struct ieee80211_sub_if_data *sdata,
Emmanuel Grumbach3b24f4c2015-01-07 15:42:39 +02001983 unsigned int queues, bool drop);
Kalle Valoce7c9112008-12-18 23:35:20 +02001984
Emmanuel Grumbach4afaff12015-01-22 23:32:46 +02001985static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1986{
1987 /*
1988 * If quiescing is set, we are racing with __ieee80211_suspend.
1989 * __ieee80211_suspend flushes the workers after setting quiescing,
1990 * and we check quiescing / suspended before enqueing new workers.
1991 * We should abort the worker to avoid the races below.
1992 */
1993 if (local->quiescing)
1994 return false;
1995
1996 /*
1997 * We might already be suspended if the following scenario occurs:
1998 * __ieee80211_suspend Control path
1999 *
2000 * if (local->quiescing)
2001 * return;
2002 * local->quiescing = true;
2003 * flush_workqueue();
2004 * queue_work(...);
2005 * local->suspended = true;
2006 * local->quiescing = false;
2007 * worker starts running...
2008 */
2009 if (local->suspended)
2010 return false;
2011
2012 return true;
2013}
2014
Michal Kaziorfa962b92016-05-19 10:37:49 +02002015int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2016void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2017void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2018 struct sta_info *sta,
2019 struct txq_info *txq, int tid);
2020void ieee80211_txq_purge(struct ieee80211_local *local,
2021 struct txq_info *txqi);
Johannes Berg46900292009-02-15 12:44:28 +01002022void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03002023 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01002024 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01002025 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2026 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02002027void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2028 const u8 *bssid, u16 stype, u16 reason,
2029 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02002030int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
David Spinadelc56ef672014-02-05 15:21:13 +02002031 size_t buffer_len,
2032 struct ieee80211_scan_ies *ie_desc,
2033 const u8 *ie, size_t ie_len,
2034 u8 bands_used, u32 *rate_masks,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002035 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02002036struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berga344d672014-06-12 22:24:31 +02002037 const u8 *src, const u8 *dst,
2038 u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02002039 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02002040 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08002041 const u8 *ie, size_t ie_len,
2042 bool directed);
Johannes Berga344d672014-06-12 22:24:31 +02002043void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
2044 const u8 *src, const u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02002045 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08002046 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01002047 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02002048 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01002049
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002050u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01002051 struct ieee802_11_elems *elems,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002052 enum nl80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03002053int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2054 enum ieee80211_smps_mode smps_mode);
2055int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2056 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02002057void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02002058void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01002059
Johannes Berg8e664fb2009-12-23 13:15:38 +01002060size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08002061u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07002062 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01002063u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01002064 const struct cfg80211_chan_def *chandef,
Arik Nemtsov57f255f2015-10-25 10:59:34 +02002065 u16 prot_mode, bool rifs_mode);
Mahesh Palivelaba0afa22012-07-02 11:25:12 +00002066u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2067 u32 cap);
Arik Nemtsovfb28ec02015-03-01 09:10:02 +02002068u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2069 const struct cfg80211_chan_def *chandef);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02002070int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2071 const struct ieee80211_supported_band *sband,
2072 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02002073int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02002074 struct sk_buff *skb, bool need_basic,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002075 enum nl80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02002076int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02002077 struct sk_buff *skb, bool need_basic,
Johannes Berg57fbcce2016-04-12 15:56:15 +02002078 enum nl80211_band band);
Arik Nemtsov40b861a2014-07-17 17:14:23 +03002079u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
Johannes Berg8e664fb2009-12-23 13:15:38 +01002080
Johannes Bergf444de02010-05-05 15:25:02 +02002081/* channel management */
Johannes Berg8ac3c7042015-12-18 15:08:34 +01002082bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2083 struct cfg80211_chan_def *chandef);
2084bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2085 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02002086u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02002087
Michal Kaziord01a1e62012-06-26 14:37:16 +02002088int __must_check
2089ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01002090 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02002091 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01002092int __must_check
Luciano Coelho11335a52013-10-30 13:09:39 +02002093ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2094 const struct cfg80211_chan_def *chandef,
Michal Kazior09332482014-04-09 15:29:25 +02002095 enum ieee80211_chanctx_mode mode,
2096 bool radar_required);
Luciano Coelho11335a52013-10-30 13:09:39 +02002097int __must_check
Michal Kazior5bcae312014-06-25 12:35:06 +02002098ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
Luciano Coelho11335a52013-10-30 13:09:39 +02002099int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2100
2101int __must_check
Johannes Berg2c9b7352013-02-07 21:37:29 +01002102ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2103 const struct cfg80211_chan_def *chandef,
2104 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02002105void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01002106void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01002107void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2108 bool clear);
Michal Kaziorc0166da2014-04-09 15:29:33 +02002109int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2110 struct ieee80211_chanctx *ctx);
Michal Kaziord01a1e62012-06-26 14:37:16 +02002111
Johannes Berg04ecd252012-09-11 14:34:12 +02002112void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2113 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02002114void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2115 struct ieee80211_chanctx *ctx);
Eliad Peller5cbc95a2015-01-07 17:50:09 +02002116bool ieee80211_is_radar_required(struct ieee80211_local *local);
Simon Wunderlich164eb022013-02-08 18:16:20 +01002117
2118void ieee80211_dfs_cac_timer(unsigned long data);
2119void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2120void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2121void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07002122int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2123 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02002124
Max Stepanov2475b1cc2013-03-24 14:23:27 +02002125bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2126bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2127const struct ieee80211_cipher_scheme *
2128ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2129 enum nl80211_iftype iftype);
2130int ieee80211_cs_headroom(struct ieee80211_local *local,
2131 struct cfg80211_crypto_settings *crypto,
2132 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08002133void ieee80211_recalc_dtim(struct ieee80211_local *local,
2134 struct ieee80211_sub_if_data *sdata);
Luciano Coelho73de86a2014-02-13 11:31:59 +02002135int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2136 const struct cfg80211_chan_def *chandef,
2137 enum ieee80211_chanctx_mode chanmode,
2138 u8 radar_detect);
Michal Kazior6fa001b2014-04-09 15:29:23 +02002139int ieee80211_max_num_channels(struct ieee80211_local *local);
Arik Nemtsov0fabfaa2015-06-10 20:41:23 +03002140enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2141void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2142 struct ieee80211_chanctx *ctx);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02002143
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002144/* TDLS */
2145int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002146 const u8 *peer, u8 action_code, u8 dialog_token,
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002147 u16 status_code, u32 peer_capability,
Arik Nemtsov31fa97c2014-06-11 17:18:21 +03002148 bool initiator, const u8 *extra_ies,
2149 size_t extra_ies_len);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002150int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002151 const u8 *peer, enum nl80211_tdls_operation oper);
Johannes Bergc10a1992014-09-05 10:56:35 +02002152void ieee80211_tdls_peer_del_work(struct work_struct *wk);
Arik Nemtsova7a6bdd2014-11-09 18:50:19 +02002153int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2154 const u8 *addr, u8 oper_class,
2155 struct cfg80211_chan_def *chandef);
2156void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2157 struct net_device *dev,
2158 const u8 *addr);
Arik Nemtsovd51c2ea2015-06-14 16:53:46 +03002159void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
Arik Nemtsovc8ff71e2015-07-08 15:41:45 +03002160void ieee80211_tdls_chsw_work(struct work_struct *wk);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002161
Johannes Bergb7ffbd72014-06-04 17:31:56 +02002162extern const struct ethtool_ops ieee80211_ethtool_ops;
2163
Johannes Bergf4ea83d2008-06-30 15:10:46 +02002164#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02002165#define debug_noinline noinline
2166#else
2167#define debug_noinline
2168#endif
2169
Jiri Bencf0706e82007-05-05 11:45:53 -07002170#endif /* IEEE80211_I_H */