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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>
Johannes Bergd98ad832014-09-03 15:24:57 +03006 * Copyright 2013-2014 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 Bergfe7a5d52009-11-18 18:42:47 +010029#include <net/ieee80211_radiotap.h>
colin@cozybit.com93da9cc2008-10-21 12:03:48 -070030#include <net/cfg80211.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070031#include <net/mac80211.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040032#include "key.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070033#include "sta_info.h"
Johannes Bergbdcbd8e2012-06-22 11:29:50 +020034#include "debug.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070035
Johannes Berg9cfb0002008-04-03 15:17:31 +020036struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070037
38/* Maximum number of broadcast/multicast frames to buffer when some of the
39 * associated stations are using power saving. */
40#define AP_MAX_BC_BUFFER 128
41
42/* Maximum number of frames buffered to all STAs, including multicast frames.
43 * Note: increasing this limit increases the potential memory requirement. Each
44 * frame can be up to about 2 kB long. */
45#define TOTAL_MAX_TX_BUFFER 512
46
47/* Required encryption head and tailroom */
48#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020049#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070050
51/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
52 * reception of at least three fragmented frames. This limit can be increased
53 * by changing this define, at the cost of slower frame reassembly and
54 * increased memory use (about 2 kB of RAM per entry). */
55#define IEEE80211_FRAGMENT_MAX 4
56
Johannes Berg1ea6f9c2012-10-24 10:59:25 +020057/* power level hasn't been configured (or set to automatic) */
58#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
59
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030060/*
61 * Some APs experience problems when working with U-APSD. Decrease the
62 * probability of that happening by using legacy mode for all ACs but VO.
63 * The AP that caused us trouble was a Cisco 4410N. It ignores our
64 * setting, and always treats non-VO ACs as legacy.
65 */
Kalle Valoab133152010-01-12 10:42:31 +020066#define IEEE80211_DEFAULT_UAPSD_QUEUES \
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030067 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
Kalle Valoab133152010-01-12 10:42:31 +020068
69#define IEEE80211_DEFAULT_MAX_SP_LEN \
70 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
71
Antonio Quartulli6ae16772012-09-07 13:28:52 +020072#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
73
Jiri Bencf0706e82007-05-05 11:45:53 -070074struct ieee80211_fragment_entry {
75 unsigned long first_frag_time;
76 unsigned int seq;
77 unsigned int rx_queue;
78 unsigned int last_frag;
79 unsigned int extra_len;
80 struct sk_buff_head skb_list;
81 int ccmp; /* Whether fragments were encrypted with CCMP */
82 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
83};
84
85
Johannes Bergc2b13452008-09-11 00:01:55 +020086struct ieee80211_bss {
Johannes Bergef429da2013-02-05 17:48:40 +010087 u32 device_ts_beacon, device_ts_presp;
Johannes Berg8c358bc2012-05-22 22:13:05 +020088
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030089 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020090 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010091
Jiri Bencf0706e82007-05-05 11:45:53 -070092#define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
94 size_t supp_rates_len;
Alexander Bondar817cee72013-05-19 14:23:57 +030095 struct ieee80211_rate *beacon_rate;
Jiri Bencf0706e82007-05-05 11:45:53 -070096
Johannes Berg00d3f142009-02-10 21:26:00 +010097 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -030098 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +020099 * that we can feed ERP info to the driver when handling the
100 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100101 * otherwise, you probably don't want to use them.
102 */
103 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200104 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800105
106 /* Keep track of the corruption of the last beacon/probe response. */
107 u8 corrupt_data;
108
109 /* Keep track of what bits of information we have valid info for. */
110 u8 valid_data;
111};
112
113/**
114 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
115 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
116 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
117 *
118 * These are bss flags that are attached to a bss in the
119 * @corrupt_data field of &struct ieee80211_bss.
120 */
121enum ieee80211_bss_corrupt_data_flags {
122 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
123 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
124};
125
126/**
127 * enum ieee80211_valid_data_flags - BSS valid data flags
Paul Stewartfcff4f12012-02-23 17:59:53 -0800128 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
129 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
131 *
132 * These are bss flags that are attached to a bss in the
133 * @valid_data field of &struct ieee80211_bss. They show which parts
Stephen Hemmingerd070f912014-10-29 22:55:58 -0700134 * of the data structure were received as a result of an un-corrupted
Paul Stewartfcff4f12012-02-23 17:59:53 -0800135 * beacon/probe response.
136 */
137enum ieee80211_bss_valid_data_flags {
Paul Stewartfcff4f12012-02-23 17:59:53 -0800138 IEEE80211_BSS_VALID_WMM = BIT(1),
139 IEEE80211_BSS_VALID_RATES = BIT(2),
140 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700141};
142
Johannes Berg9ae54c82008-01-31 19:48:20 +0100143typedef unsigned __bitwise__ ieee80211_tx_result;
144#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
145#define TX_DROP ((__force ieee80211_tx_result) 1u)
146#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
147
Johannes Berg5cf121c2008-02-25 16:27:43 +0100148#define IEEE80211_TX_UNICAST BIT(1)
149#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100150
Johannes Berg5cf121c2008-02-25 16:27:43 +0100151struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700152 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100153 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700154 struct ieee80211_local *local;
155 struct ieee80211_sub_if_data *sdata;
156 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700157 struct ieee80211_key *key;
Felix Fietkau0d528d82013-04-22 16:14:41 +0200158 struct ieee80211_tx_rate rate;
Jiri Bencf0706e82007-05-05 11:45:53 -0700159
Johannes Berg056cdd52008-03-26 23:21:47 +0100160 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100161};
162
163
164typedef unsigned __bitwise__ ieee80211_rx_result;
165#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
166#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
167#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
168#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
169
Johannes Berg554891e2010-09-24 12:38:25 +0200170/**
171 * enum ieee80211_packet_rx_flags - packet RX flags
172 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
173 * (incl. multicast frames)
Johannes Berg554891e2010-09-24 12:38:25 +0200174 * @IEEE80211_RX_FRAGMENTED: fragmented frame
175 * @IEEE80211_RX_AMSDU: a-MSDU packet
176 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100177 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200178 *
179 * These are per-frame flags that are attached to a frame in the
180 * @rx_flags field of &struct ieee80211_rx_status.
181 */
182enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200183 IEEE80211_RX_RA_MATCH = BIT(1),
184 IEEE80211_RX_FRAGMENTED = BIT(2),
185 IEEE80211_RX_AMSDU = BIT(3),
186 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100187 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200188};
189
190/**
191 * enum ieee80211_rx_flags - RX data flags
192 *
193 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100194 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
195 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200196 *
197 * These flags are used across handling multiple interfaces
198 * for a single frame.
199 */
200enum ieee80211_rx_flags {
201 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100202 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200203};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100204
205struct ieee80211_rx_data {
206 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100207 struct ieee80211_local *local;
208 struct ieee80211_sub_if_data *sdata;
209 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100210 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100211
Johannes Berg056cdd52008-03-26 23:21:47 +0100212 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200213
214 /*
215 * Index into sequence numbers array, 0..16
216 * since the last (16) is used for non-QoS,
217 * will be 16 on non-QoS frames.
218 */
219 int seqno_idx;
220
221 /*
222 * Index into the security IV/PN arrays, 0..16
223 * since the last (16) is used for CCMP-encrypted
224 * management frames, will be set to 16 on mgmt
225 * frames and 0 on non-QoS frames.
226 */
227 int security_idx;
228
Johannes Berg5cf121c2008-02-25 16:27:43 +0100229 u32 tkip_iv32;
230 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700231};
232
Michal Kazioraf296bd2014-06-05 14:21:36 +0200233struct ieee80211_csa_settings {
234 const u16 *counter_offsets_beacon;
235 const u16 *counter_offsets_presp;
236
237 int n_counter_offsets_beacon;
238 int n_counter_offsets_presp;
239
240 u8 count;
241};
242
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100243struct beacon_data {
244 u8 *head, *tail;
245 int head_len, tail_len;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800246 struct ieee80211_meshconf_ie *meshconf;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200247 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
248 u8 csa_current_counter;
Johannes Berg88600202012-02-13 15:17:18 +0100249 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100250};
251
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300252struct probe_resp {
253 struct rcu_head rcu_head;
254 int len;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200255 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300256 u8 data[0];
257};
258
Marco Porschd012a602012-10-10 12:39:50 -0700259struct ps_data {
260 /* yes, this looks ugly, but guarantees that we can later use
261 * bitmap_empty :)
262 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Joe Perches5fe2bb82013-12-18 16:52:17 -0800263 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
264 __aligned(__alignof__(unsigned long));
Marco Porschd012a602012-10-10 12:39:50 -0700265 struct sk_buff_head bc_buf;
266 atomic_t num_sta_ps; /* number of stations in PS mode */
267 int dtim_count;
268 bool dtim_bc_mc;
269};
270
Jiri Bencf0706e82007-05-05 11:45:53 -0700271struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200272 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300273 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700274
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200275 /* to be used after channel switch. */
276 struct cfg80211_beacon_data *next_beacon;
Michal Kazior4e141da2014-03-05 13:14:08 +0100277 struct list_head vlans; /* write-protected with RTNL and local->mtx */
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400278
Marco Porschd012a602012-10-10 12:39:50 -0700279 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200280 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300281 enum ieee80211_smps_mode req_smps, /* requested smps mode */
282 driver_smps_mode; /* smps mode request */
283
284 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700285};
286
287struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700288 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100289 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700290};
291
292struct ieee80211_if_vlan {
Michal Kazior4e141da2014-03-05 13:14:08 +0100293 struct list_head list; /* write-protected with RTNL and local->mtx */
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100294
295 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200296 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700297};
298
Luis Carlos Coboee385852008-02-23 15:17:11 +0100299struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700300 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
301 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
302 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100303 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
304 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700305 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100306};
307
308#define PREQ_Q_F_START 0x1
309#define PREQ_Q_F_REFRESH 0x2
310struct mesh_preq_queue {
311 struct list_head list;
312 u8 dst[ETH_ALEN];
313 u8 flags;
314};
315
Johannes Berg2eb278e2012-06-05 14:28:42 +0200316#if HZ/100 == 0
317#define IEEE80211_ROC_MIN_LEFT 1
318#else
319#define IEEE80211_ROC_MIN_LEFT (HZ/100)
320#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200321
Johannes Berg2eb278e2012-06-05 14:28:42 +0200322struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200323 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200324 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100325
Johannes Berg2eb278e2012-06-05 14:28:42 +0200326 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100327
328 struct ieee80211_sub_if_data *sdata;
329
Johannes Bergf679f652009-12-23 13:15:34 +0100330 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100331
Johannes Berg2eb278e2012-06-05 14:28:42 +0200332 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100333 bool to_be_freed;
Johannes Bergb4b177a2014-05-14 15:34:41 +0200334 bool on_channel;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200335
Johannes Berg2eb278e2012-06-05 14:28:42 +0200336 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100337
Johannes Berg2eb278e2012-06-05 14:28:42 +0200338 u32 duration, req_duration;
339 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200340 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200341 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200342};
343
Johannes Berg46900292009-02-15 12:44:28 +0100344/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200345enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200346 IEEE80211_STA_CONNECTION_POLL = BIT(1),
347 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100348 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200349 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200350 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530351 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700352 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200353 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000354 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100355 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
356 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200357 IEEE80211_STA_DISABLE_WMM = BIT(14),
Assaf Krausscd2f5dd2014-09-03 15:25:02 +0300358 IEEE80211_STA_ENABLE_RRM = BIT(15),
Johannes Bergab1faea2009-07-01 21:41:17 +0200359};
360
Johannes Berg66e67e42012-01-20 13:55:27 +0100361struct ieee80211_mgd_auth_data {
362 struct cfg80211_bss *bss;
363 unsigned long timeout;
364 int tries;
365 u16 algorithm, expected_transaction;
366
367 u8 key[WLAN_KEY_LEN_WEP104];
368 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100369 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100370 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100371
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300372 u16 sae_trans, sae_status;
373 size_t data_len;
374 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100375};
376
377struct ieee80211_mgd_assoc_data {
378 struct cfg80211_bss *bss;
379 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100380
381 unsigned long timeout;
382 int tries;
383
384 u16 capability;
385 u8 prev_bssid[ETH_ALEN];
386 u8 ssid[IEEE80211_MAX_SSID_LEN];
387 u8 ssid_len;
388 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100389 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300390 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100391 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100392 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100393
Johannes Berg9dde6422012-05-16 23:43:19 +0200394 u8 ap_ht_param;
395
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100396 struct ieee80211_vht_cap ap_vht_cap;
397
Johannes Berg66e67e42012-01-20 13:55:27 +0100398 size_t ie_len;
399 u8 ie[];
400};
401
Johannes Berg02219b32014-10-07 10:38:50 +0300402struct ieee80211_sta_tx_tspec {
403 /* timestamp of the first packet in the time slice */
404 unsigned long time_slice_start;
405
406 u32 admitted_time; /* in usecs, unlike over the air */
407 u8 tsid;
408 s8 up; /* signed to be able to invalidate with -1 during teardown */
409
410 /* consumed TX time in microseconds in the time slice */
411 u32 consumed_tx_time;
412 enum {
413 TX_TSPEC_ACTION_NONE = 0,
414 TX_TSPEC_ACTION_DOWNGRADE,
415 TX_TSPEC_ACTION_STOP_DOWNGRADE,
416 } action;
417 bool downgraded;
418};
419
Johannes Berg46900292009-02-15 12:44:28 +0100420struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100421 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200422 struct timer_list conn_mon_timer;
423 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530424 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200425 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530426 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200427 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200428 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100429
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100430 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200431 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300432 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100433 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100434 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200435
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100436 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100437 struct ieee80211_mgd_auth_data *auth_data;
438 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100439
Johannes Berg77fdaa12009-07-07 03:45:17 +0200440 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100441
Jiri Bencf0706e82007-05-05 11:45:53 -0700442 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700443
Johannes Berg965beda2009-04-16 13:17:24 +0200444 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200445 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300446 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200447 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100448 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200449 driver_smps_mode; /* smps mode request */
450
451 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200452
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400453 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700454
Luciano Coelho0c21e632014-10-08 09:48:39 +0300455 bool csa_waiting_bcn;
456
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300457 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200458 u32 beacon_crc;
459
Johannes Berg1672c0e32013-01-29 15:02:27 +0100460 bool status_acked;
461 bool status_received;
462 __le16 status_fc;
463
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200464 enum {
465 IEEE80211_MFP_DISABLED,
466 IEEE80211_MFP_OPTIONAL,
467 IEEE80211_MFP_REQUIRED
468 } mfp; /* management frame protection */
469
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200470 /*
471 * Bitmask of enabled u-apsd queues,
472 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
473 * to take effect.
474 */
475 unsigned int uapsd_queues;
476
477 /*
478 * Maximum number of buffered frames AP can deliver during a
479 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
480 * Needs a new association to take effect.
481 */
482 unsigned int uapsd_max_sp_len;
483
Jiri Bencf0706e82007-05-05 11:45:53 -0700484 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100485
486 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700487
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100488 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100489
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700490 /* Signal strength from the last Beacon frame in the current BSS. */
491 int last_beacon_signal;
492
493 /*
494 * Weighted average of the signal strength from Beacon frames in the
495 * current BSS. This is in units of 1/16 of the signal unit to maintain
496 * accuracy and to speed up calculations, i.e., the value need to be
497 * divided by 16 to get the actual value.
498 */
499 int ave_beacon_signal;
500
501 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300502 * Number of Beacon frames used in ave_beacon_signal. This can be used
503 * to avoid generating less reliable cqm events that would be based
504 * only on couple of received frames.
505 */
506 unsigned int count_beacon_signal;
507
508 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700509 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
510 * that triggered a cqm event. 0 indicates that no event has been
511 * generated for the current association.
512 */
513 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700514
515 /*
516 * State variables for keeping track of RSSI of the AP currently
517 * connected to and informing driver when RSSI has gone
518 * below/above a certain threshold.
519 */
520 int rssi_min_thold, rssi_max_thold;
521 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800522
523 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
524 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100525 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
526 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300527
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200528 /* TDLS support */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300529 u8 tdls_peer[ETH_ALEN] __aligned(2);
530 struct delayed_work tdls_peer_del_work;
Liad Kaufman1277b4a2014-11-09 18:50:08 +0200531 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
532 struct sk_buff *teardown_skb; /* A copy to send through the AP */
533 spinlock_t teardown_lock; /* To lock changing teardown_skb */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +0200534 bool tdls_chan_switch_prohibited;
Johannes Berg02219b32014-10-07 10:38:50 +0300535
536 /* WMM-AC TSPEC support */
537 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
538 /* Use a separate work struct so that we can do something here
539 * while the sdata->work is flushing the queues, for example.
540 * otherwise, in scenarios where we hardly get any traffic out
541 * on the BE queue, but there's a lot of VO traffic, we might
542 * get stuck in a downgraded situation and flush takes forever.
543 */
544 struct delayed_work tx_tspec_wk;
Jiri Bencf0706e82007-05-05 11:45:53 -0700545};
546
Johannes Berg46900292009-02-15 12:44:28 +0100547struct ieee80211_if_ibss {
548 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200549 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100550
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200551 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200552
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300553 u32 basic_rates;
554
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200555 bool fixed_bssid;
556 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200557 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100558
Antonio Quartulli267335d2012-01-31 20:25:47 +0100559 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200560 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100561
Felix Fietkau4d196e42012-03-01 11:23:37 +0100562 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200563 u8 ssid[IEEE80211_MAX_SSID_LEN];
564 u8 ssid_len, ie_len;
565 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200566 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100567
568 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200569 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100570 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100571
Simon Wunderlich822854b2013-06-28 10:39:59 +0200572 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
573 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
574
Johannes Berg8bf11d82011-12-15 11:17:37 +0100575 spinlock_t incomplete_lock;
576 struct list_head incomplete_stations;
577
Johannes Berg46900292009-02-15 12:44:28 +0100578 enum {
579 IEEE80211_IBSS_MLME_SEARCH,
580 IEEE80211_IBSS_MLME_JOINED,
581 } state;
582};
583
Javier Cardonadbf498f2012-03-31 11:31:32 -0700584/**
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100585 * struct ieee80211_if_ocb - OCB mode state
586 *
587 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
588 * @wrkq_flags: OCB deferred task action
589 * @incomplete_lock: delayed STA insertion lock
590 * @incomplete_stations: list of STAs waiting for delayed insertion
591 * @joined: indication if the interface is connected to an OCB network
592 */
593struct ieee80211_if_ocb {
594 struct timer_list housekeeping_timer;
595 unsigned long wrkq_flags;
596
597 spinlock_t incomplete_lock;
598 struct list_head incomplete_stations;
599
600 bool joined;
601};
602
603/**
Javier Cardonadbf498f2012-03-31 11:31:32 -0700604 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
605 *
606 * these declarations define the interface, which enables
607 * vendor-specific mesh synchronization
608 *
609 */
610struct ieee802_11_elems;
611struct ieee80211_mesh_sync_ops {
612 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
613 u16 stype,
614 struct ieee80211_mgmt *mgmt,
615 struct ieee802_11_elems *elems,
616 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800617
618 /* should be called with beacon_data under RCU read lock */
619 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
620 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700621 /* add other framework functions here */
622};
623
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700624struct mesh_csa_settings {
625 struct rcu_head rcu_head;
626 struct cfg80211_csa_settings settings;
627};
628
Johannes Berg472dbc42008-09-11 00:01:49 +0200629struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200630 struct timer_list housekeeping_timer;
631 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000632 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200633
Javier Cardona18889232009-08-10 12:15:52 -0700634 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700635 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200636
637 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
638 size_t mesh_id_len;
639 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000640 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200641 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000642 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200643 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000644 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700645 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000646 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700647 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000648 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000649 /* Local mesh Sequence Number */
650 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200651 /* Last used PREQ ID */
652 u32 preq_id;
653 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000654 /* Timestamp of last SN update */
655 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800656 /* Time when it's ok to send next PERR */
657 unsigned long next_perr;
658 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200659 unsigned long last_preq;
660 struct mesh_rmc *rmc;
661 spinlock_t mesh_preq_queue_lock;
662 struct mesh_preq_queue preq_queue;
663 int preq_queue_len;
664 struct mesh_stats mshstats;
665 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700666 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200667 u32 mesh_seqnum;
668 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700669 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800670 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700671 const u8 *ie;
672 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700673 enum {
674 IEEE80211_MESH_SEC_NONE = 0x0,
675 IEEE80211_MESH_SEC_AUTHED = 0x1,
676 IEEE80211_MESH_SEC_SECURED = 0x2,
677 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800678 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700679 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200680 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700681 s64 sync_offset_clockdrift_max;
682 spinlock_t sync_offset_lock;
683 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100684 /* mesh power save */
685 enum nl80211_mesh_power_mode nonpeer_pm;
686 int ps_peers_light_sleep;
687 int ps_peers_deep_sleep;
688 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700689 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700690 struct mesh_csa_settings __rcu *csa;
Luciano Coelho0cb4d4d2014-01-13 19:42:58 +0200691 enum {
692 IEEE80211_MESH_CSA_ROLE_NONE,
693 IEEE80211_MESH_CSA_ROLE_INIT,
694 IEEE80211_MESH_CSA_ROLE_REPEATER,
695 } csa_role;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700696 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700697 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800698
699 /* offset from skb->data while building IE */
700 int meshconf_offset;
Johannes Berg472dbc42008-09-11 00:01:49 +0200701};
Johannes Berg902acc72008-02-23 15:17:19 +0100702
703#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200704#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
705 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100706#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200707#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100708 do { } while (0)
709#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700710
Johannes Berg213cd112008-09-11 00:01:54 +0200711/**
712 * enum ieee80211_sub_if_data_flags - virtual interface flags
713 *
714 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
715 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200716 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
717 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
718 * associated stations and deliver multicast frames both
719 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200720 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100721 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200722 */
723enum ieee80211_sub_if_data_flags {
724 IEEE80211_SDATA_ALLMULTI = BIT(0),
725 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100726 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
727 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200728 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100729 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200730};
731
Johannes Berg34d4bc42010-08-27 12:35:58 +0200732/**
733 * enum ieee80211_sdata_state_bits - virtual interface state bits
734 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
735 * mirrors netif_running() but is separate for interface type
736 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200737 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
738 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100739 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
740 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200741 */
742enum ieee80211_sdata_state_bits {
743 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200744 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100745 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200746};
747
Michal Kaziord01a1e62012-06-26 14:37:16 +0200748/**
749 * enum ieee80211_chanctx_mode - channel context configuration mode
750 *
751 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
752 * multiple interfaces
753 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
754 * only by a single interface. This can be used for example for
755 * non-fixed channel IBSS.
756 */
757enum ieee80211_chanctx_mode {
758 IEEE80211_CHANCTX_SHARED,
759 IEEE80211_CHANCTX_EXCLUSIVE
760};
761
Michal Kazior5bcae312014-06-25 12:35:06 +0200762/**
763 * enum ieee80211_chanctx_replace_state - channel context replacement state
764 *
765 * This is used for channel context in-place reservations that require channel
766 * context switch/swap.
767 *
768 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
769 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
770 * by a (not yet registered) channel context pointed by %replace_ctx.
771 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
772 * replaces an existing channel context pointed to by %replace_ctx.
773 */
774enum ieee80211_chanctx_replace_state {
775 IEEE80211_CHANCTX_REPLACE_NONE,
776 IEEE80211_CHANCTX_WILL_BE_REPLACED,
777 IEEE80211_CHANCTX_REPLACES_OTHER,
778};
779
Michal Kaziord01a1e62012-06-26 14:37:16 +0200780struct ieee80211_chanctx {
781 struct list_head list;
782 struct rcu_head rcu_head;
783
Michal Kazior484298a2014-04-09 15:29:26 +0200784 struct list_head assigned_vifs;
Michal Kaziore3afb922014-04-09 15:29:27 +0200785 struct list_head reserved_vifs;
Michal Kazior484298a2014-04-09 15:29:26 +0200786
Michal Kazior5bcae312014-06-25 12:35:06 +0200787 enum ieee80211_chanctx_replace_state replace_state;
788 struct ieee80211_chanctx *replace_ctx;
789
Michal Kaziord01a1e62012-06-26 14:37:16 +0200790 enum ieee80211_chanctx_mode mode;
Johannes Berg8a61af62012-12-13 17:42:30 +0100791 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200792
793 struct ieee80211_chanctx_conf conf;
794};
795
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800796struct mac80211_qos_map {
797 struct cfg80211_qos_map qos_map;
798 struct rcu_head rcu_head;
799};
800
Jiri Bencf0706e82007-05-05 11:45:53 -0700801struct ieee80211_sub_if_data {
802 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700803
804 struct wireless_dev wdev;
805
Johannes Berg11a843b2007-08-28 17:01:55 -0400806 /* keys */
807 struct list_head key_list;
808
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530809 /* count for keys needing tailroom space allocation */
810 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100811 int crypto_tx_tailroom_pending_dec;
812 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530813
Jiri Bencf0706e82007-05-05 11:45:53 -0700814 struct net_device *dev;
815 struct ieee80211_local *local;
816
Jiri Slaby13262ff2007-08-28 17:01:54 -0400817 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200818
Johannes Berg34d4bc42010-08-27 12:35:58 +0200819 unsigned long state;
820
Jiri Bencf0706e82007-05-05 11:45:53 -0700821 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700822
Johannes Berg47846c92009-11-25 17:46:19 +0100823 char name[IFNAMSIZ];
824
Jiri Bencf0706e82007-05-05 11:45:53 -0700825 /* Fragment table for host-based reassembly */
826 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
827 unsigned int fragment_next;
828
Simon Wunderlichb53be792011-11-18 14:20:44 +0100829 /* TID bitmap for NoAck policy */
830 u16 noack_map;
831
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300832 /* bit field of ACM bits (BIT(802.1D tag)) */
833 u8 wmm_acm;
834
Johannes Berg40b275b2011-05-13 14:15:49 +0200835 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
836 struct ieee80211_key __rcu *default_unicast_key;
837 struct ieee80211_key __rcu *default_multicast_key;
838 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700839
Johannes Berg94778282008-10-10 13:21:59 +0200840 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300841 __be16 control_port_protocol;
842 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200843 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200844
Johannes Berg54bcbc62012-03-28 11:04:25 +0200845 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800846 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300847
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200848 struct work_struct csa_finalize_work;
Michal Kazior59af6922014-04-09 15:10:59 +0200849 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
Luciano Coelho33787fc2013-11-11 20:34:54 +0200850 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200851
Michal Kazior484298a2014-04-09 15:29:26 +0200852 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
Michal Kaziore3afb922014-04-09 15:29:27 +0200853 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
Michal Kazior484298a2014-04-09 15:29:26 +0200854
Luciano Coelho11335a52013-10-30 13:09:39 +0200855 /* context reservation -- protected with chanctx_mtx */
856 struct ieee80211_chanctx *reserved_chanctx;
857 struct cfg80211_chan_def reserved_chandef;
Michal Kazior09332482014-04-09 15:29:25 +0200858 bool reserved_radar_required;
Michal Kazior5bcae312014-06-25 12:35:06 +0200859 bool reserved_ready;
Luciano Coelho11335a52013-10-30 13:09:39 +0200860
Johannes Berg04ecd252012-09-11 14:34:12 +0200861 /* used to reconfigure hardware SM PS */
862 struct work_struct recalc_smps;
863
Johannes Berg64592c82010-06-10 10:21:31 +0200864 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200865 struct sk_buff_head skb_queue;
866
Johannes Berg04ecd252012-09-11 14:34:12 +0200867 u8 needed_rx_chains;
868 enum ieee80211_smps_mode smps_mode;
869
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200870 int user_power_level; /* in dBm */
871 int ap_power_level; /* in dBm */
872
Simon Wunderlich164eb022013-02-08 18:16:20 +0100873 bool radar_required;
874 struct delayed_work dfs_cac_timer_work;
875
Johannes Berg3e122be2008-07-09 14:40:34 +0200876 /*
877 * AP this belongs to: self in AP mode and
878 * corresponding AP in VLAN mode, NULL for
879 * all others (might be needed later in IBSS)
880 */
881 struct ieee80211_if_ap *bss;
882
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200883 /* bitmap of allowed (non-MCS) rate indexes for rate control */
884 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200885
886 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100887 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700888
889 union {
890 struct ieee80211_if_ap ap;
891 struct ieee80211_if_wds wds;
892 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100893 struct ieee80211_if_managed mgd;
894 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200895 struct ieee80211_if_mesh mesh;
Rostislav Lisovy239281f2014-11-03 10:33:19 +0100896 struct ieee80211_if_ocb ocb;
Michael Wu8cc9a732008-01-31 19:48:23 +0100897 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700898 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700899
900#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300901 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700902 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100903 struct dentry *default_unicast_key;
904 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200905 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100906 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700907#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100908
Johannes Berg32bfd352007-12-19 01:31:26 +0100909 /* must be last, dynamically sized area in this! */
910 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700911};
912
Johannes Berg32bfd352007-12-19 01:31:26 +0100913static inline
914struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
915{
916 return container_of(p, struct ieee80211_sub_if_data, vif);
917}
918
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200919static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
920 __acquires(&sdata->wdev.mtx)
921{
922 mutex_lock(&sdata->wdev.mtx);
923 __acquire(&sdata->wdev.mtx);
924}
925
926static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
927 __releases(&sdata->wdev.mtx)
928{
929 mutex_unlock(&sdata->wdev.mtx);
930 __release(&sdata->wdev.mtx);
931}
932
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100933#define sdata_dereference(p, sdata) \
934 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
935
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200936static inline void
937sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
938{
939 lockdep_assert_held(&sdata->wdev.mtx);
940}
941
Johannes Berg55de9082012-07-26 17:24:39 +0200942static inline enum ieee80211_band
943ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
944{
945 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
946 struct ieee80211_chanctx_conf *chanctx_conf;
947
948 rcu_read_lock();
949 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
950 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100951 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200952 rcu_read_unlock();
953
954 return band;
955}
956
Simon Wunderlich438b61b2013-07-08 16:55:51 +0200957static inline int
958ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
959{
960 switch (chandef->width) {
961 case NL80211_CHAN_WIDTH_5:
962 return 2;
963 case NL80211_CHAN_WIDTH_10:
964 return 1;
965 default:
966 return 0;
967 }
968}
969
970static inline int
971ieee80211_vif_get_shift(struct ieee80211_vif *vif)
972{
973 struct ieee80211_chanctx_conf *chanctx_conf;
974 int shift = 0;
975
976 rcu_read_lock();
977 chanctx_conf = rcu_dereference(vif->chanctx_conf);
978 if (chanctx_conf)
979 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
980 rcu_read_unlock();
981
982 return shift;
983}
984
Michal Kazior08cf42e2014-07-16 12:12:15 +0200985struct ieee80211_rx_agg {
986 u8 addr[ETH_ALEN];
987 u16 tid;
988};
989
Johannes Bergc1475ca2010-06-10 10:21:37 +0200990enum sdata_queue_type {
991 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
992 IEEE80211_SDATA_QUEUE_AGG_START = 1,
993 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
Michal Kazior08cf42e2014-07-16 12:12:15 +0200994 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
995 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
Arik Nemtsov8a4d32f2014-11-09 18:50:20 +0200996 IEEE80211_SDATA_QUEUE_TDLS_CHSW = 5,
Johannes Bergc1475ca2010-06-10 10:21:37 +0200997};
998
Jiri Bencf0706e82007-05-05 11:45:53 -0700999enum {
1000 IEEE80211_RX_MSG = 1,
1001 IEEE80211_TX_STATUS_MSG = 2,
1002};
1003
Kalle Valoce7c9112008-12-18 23:35:20 +02001004enum queue_stop_reason {
1005 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +02001006 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +01001007 IEEE80211_QUEUE_STOP_REASON_CSA,
1008 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +01001009 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +02001010 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -06001011 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001012 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Arik Nemtsovdb67d662014-06-11 17:18:24 +03001013 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
Liad Kaufmanb6da9112014-11-19 13:47:38 +02001014 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001015
1016 IEEE80211_QUEUE_STOP_REASONS,
Kalle Valoce7c9112008-12-18 23:35:20 +02001017};
1018
Luciano Coelho65a65382010-12-21 16:02:17 +02001019#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +01001020struct tpt_led_trigger {
1021 struct led_trigger trig;
1022 char name[32];
1023 const struct ieee80211_tpt_blink *blink_table;
1024 unsigned int blink_table_len;
1025 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +01001026 unsigned long prev_traffic;
1027 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +01001028 unsigned int active, want;
1029 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +01001030};
Luciano Coelho65a65382010-12-21 16:02:17 +02001031#endif
Johannes Berge1e54062010-11-30 08:58:45 +01001032
Matti Gottliebad38bfc2013-11-18 19:06:45 +02001033/*
1034 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges
1035 *
1036 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a
1037 * certain latency range (in Milliseconds). Each station that uses these
1038 * ranges will have bins to count the amount of frames received in that range.
1039 * The user can configure the ranges via debugfs.
1040 * If ranges is NULL then Tx latency statistics bins are disabled for all
1041 * stations.
1042 *
1043 * @n_ranges: number of ranges that are taken in account
1044 * @ranges: the ranges that the user requested or NULL if disabled.
1045 */
1046struct ieee80211_tx_latency_bin_ranges {
1047 int n_ranges;
1048 u32 ranges[];
1049};
1050
Helmut Schaa142b9f52009-07-23 13:18:01 +02001051/**
1052 * mac80211 scan flags - currently active scan mode
1053 *
1054 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1055 * well be on the operating channel
1056 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1057 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -07001058 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1059 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +02001060 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1061 * that the scan completed.
1062 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1063 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001064 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1065 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +02001066 */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001067enum {
1068 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001069 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -07001070 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +02001071 SCAN_COMPLETED,
1072 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001073 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001074};
1075
1076/**
1077 * enum mac80211_scan_state - scan state machine states
1078 *
1079 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1080 * determines if we should keep on scanning or switch back to the
1081 * operating channel
1082 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1083 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +01001084 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1085 * send out data
1086 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -07001087 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +02001088 */
1089enum mac80211_scan_state {
1090 SCAN_DECISION,
1091 SCAN_SET_CHANNEL,
1092 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +01001093 SCAN_SUSPEND,
1094 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -07001095 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +02001096};
1097
Jiri Bencf0706e82007-05-05 11:45:53 -07001098struct ieee80211_local {
1099 /* embed the driver visible part.
1100 * don't cast (use the static inlines below), but we keep
1101 * it first anyway so they become a no-op */
1102 struct ieee80211_hw hw;
1103
1104 const struct ieee80211_ops *ops;
1105
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001106 /*
1107 * private workqueue to mac80211. mac80211 makes this accessible
1108 * via ieee80211_queue_work()
1109 */
1110 struct workqueue_struct *workqueue;
1111
Johannes Berge4e72fb2009-03-23 17:28:42 +01001112 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Luciano Coelhocca07b02014-06-13 16:30:05 +03001113 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
Johannes Berg96f5e662009-02-12 00:51:53 +01001114 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +02001115 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +01001116
Jiri Bencf0706e82007-05-05 11:45:53 -07001117 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +01001118 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +01001119 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001120 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1121 fif_probe_req;
1122 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001123 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001124
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001125 bool wiphy_ciphers_allocated;
1126
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001127 bool use_chanctx;
1128
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001129 /* protects the aggregated multicast list and filter calls */
1130 spinlock_t filter_lock;
1131
Johannes Berg3ac64be2009-08-17 16:16:53 +02001132 /* used for uploading changed mc list */
1133 struct work_struct reconfig_filter;
1134
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001135 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001136 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001137
Johannes Bergd0709a62008-02-25 16:27:46 +01001138 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001139
1140 /*
1141 * suspended is true if we finished all the suspend _and_ we have
1142 * not yet come up from resume. This is to be used by mac80211
1143 * to ensure driver sanity during suspend and mac80211's own
1144 * sanity. It can eventually be used for WoW as well.
1145 */
1146 bool suspended;
1147
1148 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001149 * Resuming is true while suspended, but when we're reprogramming the
1150 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1151 * again even though some other parts of the stack are still suspended
1152 * and we still drop received frames to avoid waking the stack.
1153 */
1154 bool resuming;
1155
1156 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001157 * quiescing is true during the suspend process _only_ to
1158 * ease timer cancelling etc.
1159 */
1160 bool quiescing;
1161
Johannes Bergea77f122009-08-21 14:44:45 +02001162 /* device is started */
1163 bool started;
1164
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001165 /* device is during a HW reconfig */
1166 bool in_reconfig;
1167
Johannes Bergeecc4802011-05-04 15:37:29 +02001168 /* wowlan is enabled -- don't reconfig on resume */
1169 bool wowlan;
1170
Simon Wunderlich164eb022013-02-08 18:16:20 +01001171 /* DFS/radar detection is enabled */
1172 bool radar_detect_enabled;
1173 struct work_struct radar_detected_work;
1174
Johannes Berg04ecd252012-09-11 14:34:12 +02001175 /* number of RX chains the hardware has */
1176 u8 rx_chains;
1177
Johannes Bergb306f452007-07-10 19:32:08 +02001178 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001179
Jiri Bencf0706e82007-05-05 11:45:53 -07001180 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1181 * added to skb_queue will be processed, but frames in
1182 * skb_queue_unreliable may be dropped if the total length of these
1183 * queues increases over the limit. */
1184#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1185 struct tasklet_struct tasklet;
1186 struct sk_buff_head skb_queue;
1187 struct sk_buff_head skb_queue_unreliable;
1188
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001189 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001190
Johannes Bergd0709a62008-02-25 16:27:46 +01001191 /* Station data */
1192 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001193 * The mutex only protects the list, hash table and
1194 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001195 */
Johannes Berg34e89502010-02-03 13:59:58 +01001196 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001197 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001198 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001199 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +02001200 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -07001201 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001202 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001203
Matti Gottliebad38bfc2013-11-18 19:06:45 +02001204 /*
1205 * Tx latency statistics parameters for all stations.
1206 * Can enable via debugfs (NULL when disabled).
1207 */
1208 struct ieee80211_tx_latency_bin_ranges __rcu *tx_latency;
1209
Johannes Berg2a577d92009-03-23 17:28:37 +01001210 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001211 struct tasklet_struct tx_pending_tasklet;
1212
Johannes Berga6a67db2010-06-10 10:21:41 +02001213 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001214
Johannes Berg53918992007-09-26 15:19:47 +02001215 /* number of interfaces with corresponding IFF_ flags */
1216 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -07001217
1218 struct rate_control_ref *rate_ctrl;
1219
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001220 struct crypto_cipher *wep_tx_tfm;
1221 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001222 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001223
Johannes Bergc771c9d2009-01-23 22:54:03 +01001224 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001225 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001226 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001227
Johannes Bergb16bd152008-04-11 21:40:35 +02001228 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001229 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001230 * key pointers (write access, they're RCU.)
1231 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001232 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001233
Johannes Berga1699b72010-07-30 16:46:07 +02001234 /* mutex for scan and work locking */
1235 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001236
Johannes Bergc2b13452008-09-11 00:01:55 +02001237 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001238 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001239 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001240 struct cfg80211_scan_request *int_scan_req;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001241 struct cfg80211_scan_request __rcu *scan_req;
David Spinadelc56ef672014-02-05 15:21:13 +02001242 struct ieee80211_scan_request *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001243 struct cfg80211_chan_def scan_chandef;
Johannes Berg4d36ec52009-10-27 20:59:55 +01001244 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001245 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001246 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001247 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001248
Luciano Coelho85a99942011-05-12 16:28:29 +03001249 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001250 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Johannes Berg6ea0a692014-11-19 11:55:49 +01001251 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
Johannes Berga344d672014-06-12 22:24:31 +02001252 u8 scan_addr[ETH_ALEN];
Luciano Coelho79f460c2011-05-11 17:09:36 +03001253
Helmut Schaadf13cce2010-02-24 14:19:21 +01001254 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001255 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001256 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001257 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001258 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001259 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001260
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001261 /* Temporary remain-on-channel for off-channel operations */
1262 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001263
Michal Kaziord01a1e62012-06-26 14:37:16 +02001264 /* channel contexts */
1265 struct list_head chanctx_list;
1266 struct mutex chanctx_mtx;
1267
Jiri Bencf0706e82007-05-05 11:45:53 -07001268 /* SNMP counters */
1269 /* dot11CountersTable */
1270 u32 dot11TransmittedFragmentCount;
1271 u32 dot11MulticastTransmittedFrameCount;
1272 u32 dot11FailedCount;
1273 u32 dot11RetryCount;
1274 u32 dot11MultipleRetryCount;
1275 u32 dot11FrameDuplicateCount;
1276 u32 dot11ReceivedFragmentCount;
1277 u32 dot11MulticastReceivedFrameCount;
1278 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001279
1280#ifdef CONFIG_MAC80211_LEDS
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001281 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001282 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001283 char tx_led_name[32], rx_led_name[32],
1284 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001285#endif
1286
Jiri Bencf0706e82007-05-05 11:45:53 -07001287#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1288 /* TX/RX handler statistics */
1289 unsigned int tx_handlers_drop;
1290 unsigned int tx_handlers_queued;
1291 unsigned int tx_handlers_drop_unencrypted;
1292 unsigned int tx_handlers_drop_fragment;
1293 unsigned int tx_handlers_drop_wep;
1294 unsigned int tx_handlers_drop_not_assoc;
1295 unsigned int tx_handlers_drop_unauth_port;
1296 unsigned int rx_handlers_drop;
1297 unsigned int rx_handlers_queued;
1298 unsigned int rx_handlers_drop_nullfunc;
1299 unsigned int rx_handlers_drop_defrag;
1300 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001301 unsigned int tx_expand_skb_head;
1302 unsigned int tx_expand_skb_head_cloned;
1303 unsigned int rx_expand_skb_head;
1304 unsigned int rx_expand_skb_head2;
1305 unsigned int rx_handlers_fragments;
1306 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001307#define I802_DEBUG_INC(c) (c)++
1308#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1309#define I802_DEBUG_INC(c) do { } while (0)
1310#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1311
1312
Jiri Bencf0706e82007-05-05 11:45:53 -07001313 int total_ps_buffered; /* total number of all buffered unicast and
1314 * multicast packets for power saving stations
1315 */
Kalle Valo520eb822008-12-18 23:35:27 +02001316
Kalle Valo572e0012009-02-10 17:09:31 +02001317 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001318 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001319 /*
1320 * PS can only be enabled when we have exactly one managed
1321 * interface (and monitors) in PS, this then points there.
1322 */
1323 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001324 struct work_struct dynamic_ps_enable_work;
1325 struct work_struct dynamic_ps_disable_work;
1326 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001327 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001328 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001329 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001330
Juuso Oikarinenff616382010-06-09 09:51:52 +03001331 /*
1332 * The dynamic ps timeout configured from user space via WEXT -
1333 * this will override whatever chosen by mac80211 internally.
1334 */
1335 int dynamic_ps_forced_timeout;
1336
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001337 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001338
Johannes Berg0f782312009-12-01 13:37:02 +01001339 enum ieee80211_smps_mode smps_mode;
1340
Johannes Bergf2753dd2009-04-14 10:09:24 +02001341 struct work_struct restart_work;
1342
Jiri Bence9f207f2007-05-05 11:46:38 -07001343#ifdef CONFIG_MAC80211_DEBUGFS
1344 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001345 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001346 struct dentry *keys;
1347 } debugfs;
1348#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001349
Johannes Berg2eb278e2012-06-05 14:28:42 +02001350 /*
1351 * Remain-on-channel support
1352 */
1353 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001354 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001355 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001356 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001357
Johannes Berga729cff2011-11-06 14:13:34 +01001358 struct idr ack_status_frames;
1359 spinlock_t ack_status_lock;
1360
Johannes Bergf142c6b2012-06-18 20:07:15 +02001361 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1362
Johannes Berg06d181a2014-02-04 20:51:09 +01001363 struct napi_struct *napi;
1364
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001365 /* virtual monitor interface */
1366 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001367 struct cfg80211_chan_def monitor_chandef;
Luciano Coelhoe9a21942014-10-08 09:48:36 +03001368
1369 /* extended capabilities provided by mac80211 */
1370 u8 ext_capa[8];
Jiri Bencf0706e82007-05-05 11:45:53 -07001371};
1372
Johannes Berg3e122be2008-07-09 14:40:34 +02001373static inline struct ieee80211_sub_if_data *
1374IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1375{
Johannes Berg3e122be2008-07-09 14:40:34 +02001376 return netdev_priv(dev);
1377}
1378
Johannes Berg71bbc992012-06-15 15:30:18 +02001379static inline struct ieee80211_sub_if_data *
1380IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1381{
1382 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1383}
1384
Johannes Bergc1475ca2010-06-10 10:21:37 +02001385/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001386struct ieee80211_ra_tid {
1387 u8 ra[ETH_ALEN];
1388 u16 tid;
1389};
1390
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001391/* this struct holds the value parsing from channel switch IE */
1392struct ieee80211_csa_ie {
1393 struct cfg80211_chan_def chandef;
1394 u8 mode;
1395 u8 count;
1396 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001397 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001398};
1399
Johannes Bergdd769862011-11-18 16:54:50 +01001400/* Parsed Information Elements */
1401struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001402 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001403 size_t total_len;
1404
1405 /* pointers to IEs */
Arik Nemtsov53837582014-11-09 18:50:18 +02001406 const struct ieee80211_tdls_lnkie *lnk_id;
1407 const struct ieee80211_ch_switch_timing *ch_sw_timing;
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001408 const u8 *ext_capab;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001409 const u8 *ssid;
1410 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001411 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001412 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001413 const u8 *challenge;
1414 const u8 *rsn;
1415 const u8 *erp_info;
1416 const u8 *ext_supp_rates;
1417 const u8 *wmm_info;
1418 const u8 *wmm_param;
1419 const struct ieee80211_ht_cap *ht_cap_elem;
1420 const struct ieee80211_ht_operation *ht_operation;
1421 const struct ieee80211_vht_cap *vht_cap_elem;
1422 const struct ieee80211_vht_operation *vht_operation;
1423 const struct ieee80211_meshconf_ie *mesh_config;
1424 const u8 *mesh_id;
1425 const u8 *peering;
1426 const __le16 *awake_window;
1427 const u8 *preq;
1428 const u8 *prep;
1429 const u8 *perr;
1430 const struct ieee80211_rann_ie *rann;
1431 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001432 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001433 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001434 const u8 *country_elem;
1435 const u8 *pwr_constr_elem;
Steinar H. Gundersonc8d65912014-09-03 06:48:37 -07001436 const u8 *cisco_dtpc_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001437 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001438 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001439 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001440 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001441
1442 /* length of them, respectively */
Arik Nemtsov9041c1f2014-11-09 18:50:15 +02001443 u8 ext_capab_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001444 u8 ssid_len;
1445 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001446 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001447 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001448 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001449 u8 ext_supp_rates_len;
1450 u8 wmm_info_len;
1451 u8 wmm_param_len;
1452 u8 mesh_id_len;
1453 u8 peering_len;
1454 u8 preq_len;
1455 u8 prep_len;
1456 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001457 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001458
1459 /* whether a parse error occurred while retrieving these elements */
1460 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001461};
1462
Jiri Bencf0706e82007-05-05 11:45:53 -07001463static inline struct ieee80211_local *hw_to_local(
1464 struct ieee80211_hw *hw)
1465{
1466 return container_of(hw, struct ieee80211_local, hw);
1467}
1468
Jiri Bencf0706e82007-05-05 11:45:53 -07001469
Johannes Berg571ecf62007-07-27 15:43:22 +02001470static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1471{
Joe Perchesb203ca32012-05-08 18:56:52 +00001472 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001473 is_broadcast_ether_addr(raddr);
1474}
1475
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001476static inline bool
1477ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1478{
1479 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1480 status->flag & RX_FLAG_MACTIME_END);
1481 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1482}
Johannes Berg571ecf62007-07-27 15:43:22 +02001483
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001484u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1485 struct ieee80211_rx_status *status,
1486 unsigned int mpdu_len,
1487 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001488int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001489void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001490void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1491 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001492void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001493u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001494
Johannes Berg46900292009-02-15 12:44:28 +01001495/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001496void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001497int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1498 struct cfg80211_auth_request *req);
1499int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1500 struct cfg80211_assoc_request *req);
1501int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001502 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001503int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001504 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001505void ieee80211_send_pspoll(struct ieee80211_local *local,
1506 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001507void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001508void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001509int ieee80211_max_network_latency(struct notifier_block *nb,
1510 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001511int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001512void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1513void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1514 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001515void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001516void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001517void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001518void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1519 __le16 fc, bool acked);
Johannes Berg1a1cb742014-03-19 09:55:55 +01001520void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001521void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg02219b32014-10-07 10:38:50 +03001522void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001523
Johannes Berg46900292009-02-15 12:44:28 +01001524/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001525void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1526void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001527void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1528 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001529int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1530 struct cfg80211_ibss_params *params);
1531int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001532void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1533void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1534 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001535int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1536 struct cfg80211_csa_settings *csa_settings);
1537int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1538void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001539
Rostislav Lisovy239281f2014-11-03 10:33:19 +01001540/* OCB code */
1541void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1542void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1543 const u8 *bssid, const u8 *addr, u32 supp_rates);
1544void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1545int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1546 struct ocb_setup *setup);
1547int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1548
Johannes Berg1fa57d02010-06-10 10:21:32 +02001549/* mesh code */
1550void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1551void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1552 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001553int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
Luciano Coelho66e01cf2014-01-13 19:43:00 +02001554 struct cfg80211_csa_settings *csa_settings);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001555int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001556
Johannes Berg9c6bd792008-09-11 00:01:52 +02001557/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001558void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001559int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1560 const u8 *ssid, u8 ssid_len,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001561 struct ieee80211_channel *chan,
1562 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001563int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001564 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001565void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001566void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001567void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001568
Johannes Berg0a51b272008-09-08 17:44:25 +02001569void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001570struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001571ieee80211_bss_info_update(struct ieee80211_local *local,
1572 struct ieee80211_rx_status *rx_status,
1573 struct ieee80211_mgmt *mgmt,
1574 size_t len,
1575 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001576 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001577void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001578 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001579
Luciano Coelho79f460c2011-05-11 17:09:36 +03001580/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001581int
1582__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1583 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001584int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1585 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001586int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
Johannes Bergf6837ba82014-04-30 14:19:04 +02001587void ieee80211_sched_scan_end(struct ieee80211_local *local);
Luciano Coelho85a99942011-05-12 16:28:29 +03001588void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001589
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001590/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001591void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1592void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001593void ieee80211_roc_setup(struct ieee80211_local *local);
1594void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001595void ieee80211_roc_purge(struct ieee80211_local *local,
1596 struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001597void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001598void ieee80211_sw_roc_work(struct work_struct *work);
1599void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001600
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001601/* channel switch handling */
1602void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001603int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1604 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001605
Johannes Berg3e122be2008-07-09 14:40:34 +02001606/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001607int ieee80211_iface_init(void);
1608void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001609int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001610 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001611 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001612int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001613 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001614void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001615void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001616u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001617void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001618void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1619 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001620int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1621void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001622int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1623void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001624
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001625bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1626void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1627
Johannes Berg9607e6b2009-12-23 13:15:31 +01001628static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1629{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001630 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001631}
1632
Johannes Berge2ebc742007-07-27 15:43:22 +02001633/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001634void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1635void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001636netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1637 struct net_device *dev);
1638netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1639 struct net_device *dev);
Liad Kaufman24d342c2014-11-09 18:50:07 +02001640void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1641 struct net_device *dev,
1642 u32 info_flags);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001643void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1644 struct sk_buff_head *skbs);
Johannes Berg7528ec52014-11-09 18:50:11 +02001645struct sk_buff *
1646ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1647 struct sk_buff *skb, u32 info_flags);
Johannes Berge2ebc742007-07-27 15:43:22 +02001648
Johannes Bergde1ede72008-09-09 14:42:50 +02001649/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001650void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1651 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001652bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001653 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001654 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001655 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001656void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1657 const u8 *da, u16 tid,
1658 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001659int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1660 enum ieee80211_smps_mode smps, const u8 *da,
1661 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001662void ieee80211_request_smps_ap_work(struct work_struct *work);
1663void ieee80211_request_smps_mgd_work(struct work_struct *work);
1664bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1665 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001666
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001667void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001668 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001669void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001670 u16 initiator, u16 reason, bool stop);
Michal Kazior08cf42e2014-07-16 12:12:15 +02001671void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1672 u8 dialog_token, u16 timeout,
1673 u16 start_seq_num, u16 ba_policy, u16 tid,
Michal Kazior4549cf22014-09-02 14:05:10 +02001674 u16 buf_size, bool tx, bool auto_seq);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001675void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1676 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001677void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1678 struct sta_info *sta,
1679 struct ieee80211_mgmt *mgmt, size_t len);
1680void ieee80211_process_addba_resp(struct ieee80211_local *local,
1681 struct sta_info *sta,
1682 struct ieee80211_mgmt *mgmt,
1683 size_t len);
1684void ieee80211_process_addba_request(struct ieee80211_local *local,
1685 struct sta_info *sta,
1686 struct ieee80211_mgmt *mgmt,
1687 size_t len);
1688
Johannes Berg849b7962009-02-10 21:25:54 +01001689int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001690 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001691int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001692 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001693void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1694void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001695void ieee80211_ba_session_work(struct work_struct *work);
1696void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001697void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001698
Johannes Berg04ecd252012-09-11 14:34:12 +02001699u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1700
Mahesh Palivela818255e2012-10-10 11:33:04 +00001701/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001702void
1703ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1704 struct ieee80211_supported_band *sband,
1705 const struct ieee80211_vht_cap *vht_cap_ie,
1706 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001707enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001708void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Marek Kwaczynskib1bce14a2014-02-03 14:44:44 +01001709u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1710 struct sta_info *sta, u8 opmode,
1711 enum ieee80211_band band, bool nss_only);
Johannes Berg0af83d32012-12-27 18:55:36 +01001712void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1713 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001714 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001715void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1716 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001717
Johannes Berg39192c02008-09-09 14:49:03 +02001718/* Spectrum management */
1719void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1720 struct ieee80211_mgmt *mgmt,
1721 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001722/**
1723 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1724 * @sdata: the sdata of the interface which has received the frame
1725 * @elems: parsed 802.11 elements received with the frame
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001726 * @current_band: indicates the current band
1727 * @sta_flags: contains information about own capabilities and restrictions
1728 * to decide which channel switch announcements can be accepted. Only the
1729 * following subset of &enum ieee80211_sta_flags are evaluated:
1730 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1731 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1732 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001733 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001734 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1735 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001736 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1737 */
1738int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
Luciano Coelho84469a42014-10-28 13:33:04 +02001739 struct ieee802_11_elems *elems,
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001740 enum ieee80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001741 u32 sta_flags, u8 *bssid,
1742 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001743
Johannes Bergf2753dd2009-04-14 10:09:24 +02001744/* Suspend/resume and hw reconfiguration */
1745int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001746void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001747
Johannes Bergeecc4802011-05-04 15:37:29 +02001748int __ieee80211_suspend(struct ieee80211_hw *hw,
1749 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001750
1751static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1752{
John W. Linville85f72bc2010-09-01 16:12:28 -04001753 struct ieee80211_local *local = hw_to_local(hw);
1754
1755 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1756 "%s: resume with hardware scan still in progress\n",
1757 wiphy_name(hw->wiphy));
1758
Johannes Bergf2753dd2009-04-14 10:09:24 +02001759 return ieee80211_reconfig(hw_to_local(hw));
1760}
Bob Copeland665af4f2009-01-19 11:20:53 -05001761
Johannes Bergc2d15602007-07-27 15:43:23 +02001762/* utility functions/constants */
Johannes Berg8a47cea2014-01-20 23:55:44 +01001763extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001764u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001765 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001766int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001767 int rate, int erp, int short_preamble,
1768 int shift);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001769void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001770 struct ieee80211_hdr *hdr, const u8 *tsc,
1771 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001772void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1773 bool bss_notify);
Johannes Berg73c4e192014-11-09 18:50:09 +02001774void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001775
Johannes Berg55de9082012-07-26 17:24:39 +02001776void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1777 struct sk_buff *skb, int tid,
1778 enum ieee80211_band band);
1779
1780static inline void
1781ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1782 struct sk_buff *skb, int tid,
1783 enum ieee80211_band band)
1784{
1785 rcu_read_lock();
1786 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1787 rcu_read_unlock();
1788}
1789
1790static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1791 struct sk_buff *skb, int tid)
1792{
1793 struct ieee80211_chanctx_conf *chanctx_conf;
1794
1795 rcu_read_lock();
1796 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1797 if (WARN_ON(!chanctx_conf)) {
1798 rcu_read_unlock();
1799 kfree_skb(skb);
1800 return;
1801 }
1802
1803 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001804 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001805 rcu_read_unlock();
1806}
1807
1808static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001809 struct sk_buff *skb)
1810{
1811 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1812 ieee80211_tx_skb_tid(sdata, skb, 7);
1813}
1814
Johannes Berg35d865a2013-05-28 10:54:03 +02001815u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001816 struct ieee802_11_elems *elems,
1817 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001818static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1819 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001820 struct ieee802_11_elems *elems)
1821{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001822 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001823}
1824
Michal Kazior83eb9352014-07-16 12:09:31 +02001825static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
1826{
1827 struct sk_buff *tail = skb_peek_tail(frames);
1828 struct ieee80211_rx_status *status;
1829
1830 if (!tail)
1831 return false;
1832
1833 status = IEEE80211_SKB_RXCB(tail);
1834 if (status->flag & RX_FLAG_AMSDU_MORE)
1835 return false;
1836
1837 return true;
1838}
1839
Johannes Berg02219b32014-10-07 10:38:50 +03001840extern const int ieee802_1d_to_ac[8];
1841
1842static inline int ieee80211_ac_from_tid(int tid)
1843{
1844 return ieee802_1d_to_ac[tid & 7];
1845}
1846
Kalle Valo520eb822008-12-18 23:35:27 +02001847void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1848void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1849void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001850void ieee80211_send_nullfunc(struct ieee80211_local *local,
1851 struct ieee80211_sub_if_data *sdata,
1852 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001853void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1854 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001855void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Johannes Berg02219b32014-10-07 10:38:50 +03001856 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
Kalle Valo520eb822008-12-18 23:35:27 +02001857
Kalle Valoce7c9112008-12-18 23:35:20 +02001858void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001859 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001860 enum queue_stop_reason reason,
1861 bool refcounted);
Luciano Coelho26da23b2014-06-13 16:30:06 +03001862void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1863 struct ieee80211_sub_if_data *sdata,
1864 enum queue_stop_reason reason);
1865void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1866 struct ieee80211_sub_if_data *sdata,
1867 enum queue_stop_reason reason);
Kalle Valoce7c9112008-12-18 23:35:20 +02001868void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001869 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001870 enum queue_stop_reason reason,
1871 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001872void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001873 enum queue_stop_reason reason,
1874 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001875void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001876 enum queue_stop_reason reason,
1877 bool refcounted);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001878void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001879void ieee80211_add_pending_skb(struct ieee80211_local *local,
1880 struct sk_buff *skb);
Johannes Berge3685e02014-02-20 11:19:58 +01001881void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1882 struct sk_buff_head *skbs);
Johannes Berg39ecc012013-02-13 12:11:00 +01001883void ieee80211_flush_queues(struct ieee80211_local *local,
1884 struct ieee80211_sub_if_data *sdata);
Liad Kaufman4f9610d2014-11-09 18:50:21 +02001885void __ieee80211_flush_queues(struct ieee80211_local *local,
1886 struct ieee80211_sub_if_data *sdata,
1887 unsigned int queues);
Kalle Valoce7c9112008-12-18 23:35:20 +02001888
Johannes Berg46900292009-02-15 12:44:28 +01001889void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001890 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001891 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001892 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1893 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001894void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1895 const u8 *bssid, u16 stype, u16 reason,
1896 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001897int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
David Spinadelc56ef672014-02-05 15:21:13 +02001898 size_t buffer_len,
1899 struct ieee80211_scan_ies *ie_desc,
1900 const u8 *ie, size_t ie_len,
1901 u8 bands_used, u32 *rate_masks,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001902 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001903struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berga344d672014-06-12 22:24:31 +02001904 const u8 *src, const u8 *dst,
1905 u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001906 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001907 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001908 const u8 *ie, size_t ie_len,
1909 bool directed);
Johannes Berga344d672014-06-12 22:24:31 +02001910void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
1911 const u8 *src, const u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001912 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001913 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001914 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001915 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001916
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001917u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01001918 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001919 enum ieee80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001920int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1921 enum ieee80211_smps_mode smps_mode);
1922int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1923 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001924void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02001925void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001926
Johannes Berg8ed28742014-10-27 12:03:19 +01001927size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen,
1928 const u8 *ids, int n_ids,
1929 const u8 *after_ric, int n_after_ric,
1930 size_t offset);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001931size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001932u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001933 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001934u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001935 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001936 u16 prot_mode);
Mahesh Palivelaba0afa22012-07-02 11:25:12 +00001937u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1938 u32 cap);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001939int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1940 const struct ieee80211_supported_band *sband,
1941 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001942int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001943 struct sk_buff *skb, bool need_basic,
1944 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001945int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001946 struct sk_buff *skb, bool need_basic,
1947 enum ieee80211_band band);
Arik Nemtsov40b861a2014-07-17 17:14:23 +03001948u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001949
Johannes Bergf444de02010-05-05 15:25:02 +02001950/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001951void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001952 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001953 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001954u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02001955
Michal Kaziord01a1e62012-06-26 14:37:16 +02001956int __must_check
1957ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001958 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001959 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001960int __must_check
Luciano Coelho11335a52013-10-30 13:09:39 +02001961ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
1962 const struct cfg80211_chan_def *chandef,
Michal Kazior09332482014-04-09 15:29:25 +02001963 enum ieee80211_chanctx_mode mode,
1964 bool radar_required);
Luciano Coelho11335a52013-10-30 13:09:39 +02001965int __must_check
Michal Kazior5bcae312014-06-25 12:35:06 +02001966ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
Luciano Coelho11335a52013-10-30 13:09:39 +02001967int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
1968
1969int __must_check
Johannes Berg2c9b7352013-02-07 21:37:29 +01001970ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1971 const struct cfg80211_chan_def *chandef,
1972 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001973void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001974void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001975void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1976 bool clear);
Michal Kaziorc0166da2014-04-09 15:29:33 +02001977int ieee80211_chanctx_refcount(struct ieee80211_local *local,
1978 struct ieee80211_chanctx *ctx);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001979
Johannes Berg04ecd252012-09-11 14:34:12 +02001980void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1981 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02001982void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
1983 struct ieee80211_chanctx *ctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001984
1985void ieee80211_dfs_cac_timer(unsigned long data);
1986void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1987void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1988void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07001989int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
1990 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02001991
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001992bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
1993bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
1994const struct ieee80211_cipher_scheme *
1995ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
1996 enum nl80211_iftype iftype);
1997int ieee80211_cs_headroom(struct ieee80211_local *local,
1998 struct cfg80211_crypto_settings *crypto,
1999 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08002000void ieee80211_recalc_dtim(struct ieee80211_local *local,
2001 struct ieee80211_sub_if_data *sdata);
Luciano Coelho73de86a2014-02-13 11:31:59 +02002002int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2003 const struct cfg80211_chan_def *chandef,
2004 enum ieee80211_chanctx_mode chanmode,
2005 u8 radar_detect);
Michal Kazior6fa001b2014-04-09 15:29:23 +02002006int ieee80211_max_num_channels(struct ieee80211_local *local);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02002007
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002008/* TDLS */
2009int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002010 const u8 *peer, u8 action_code, u8 dialog_token,
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002011 u16 status_code, u32 peer_capability,
Arik Nemtsov31fa97c2014-06-11 17:18:21 +03002012 bool initiator, const u8 *extra_ies,
2013 size_t extra_ies_len);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002014int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02002015 const u8 *peer, enum nl80211_tdls_operation oper);
Johannes Bergc10a1992014-09-05 10:56:35 +02002016void ieee80211_tdls_peer_del_work(struct work_struct *wk);
Arik Nemtsova7a6bdd2014-11-09 18:50:19 +02002017int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2018 const u8 *addr, u8 oper_class,
2019 struct cfg80211_chan_def *chandef);
2020void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2021 struct net_device *dev,
2022 const u8 *addr);
Arik Nemtsov8a4d32f2014-11-09 18:50:20 +02002023void ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2024 struct sk_buff *skb);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03002025
Johannes Bergb7ffbd72014-06-04 17:31:56 +02002026extern const struct ethtool_ops ieee80211_ethtool_ops;
2027
Johannes Bergf4ea83d2008-06-30 15:10:46 +02002028#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02002029#define debug_noinline noinline
2030#else
2031#define debug_noinline
2032#endif
2033
Jiri Bencf0706e82007-05-05 11:45:53 -07002034#endif /* IEEE80211_I_H */