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Jiri Bencf0706e82007-05-05 11:45:53 -07001/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
Jouni Malinen026331c2010-02-15 12:53:10 +02005 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
Jiri Bencf0706e82007-05-05 11:45:53 -07006 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef IEEE80211_I_H
13#define IEEE80211_I_H
14
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <linux/if_ether.h>
18#include <linux/interrupt.h>
19#include <linux/list.h>
20#include <linux/netdevice.h>
21#include <linux/skbuff.h>
22#include <linux/workqueue.h>
23#include <linux/types.h>
24#include <linux/spinlock.h>
Johannes Berg571ecf62007-07-27 15:43:22 +020025#include <linux/etherdevice.h>
Johannes Berge1e54062010-11-30 08:58:45 +010026#include <linux/leds.h>
Johannes Berga729cff2011-11-06 14:13:34 +010027#include <linux/idr.h>
Johannes Bergfe7a5d52009-11-18 18:42:47 +010028#include <net/ieee80211_radiotap.h>
colin@cozybit.com93da9cc2008-10-21 12:03:48 -070029#include <net/cfg80211.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070030#include <net/mac80211.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040031#include "key.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070032#include "sta_info.h"
Johannes Bergbdcbd8e2012-06-22 11:29:50 +020033#include "debug.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070034
Johannes Berg9cfb0002008-04-03 15:17:31 +020035struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070036
37/* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39#define AP_MAX_BC_BUFFER 128
40
41/* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44#define TOTAL_MAX_TX_BUFFER 512
45
46/* Required encryption head and tailroom */
47#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020048#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070049
50/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54#define IEEE80211_FRAGMENT_MAX 4
55
Johannes Berg1ea6f9c2012-10-24 10:59:25 +020056/* power level hasn't been configured (or set to automatic) */
57#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030059/*
60 * Some APs experience problems when working with U-APSD. Decrease the
61 * probability of that happening by using legacy mode for all ACs but VO.
62 * The AP that caused us trouble was a Cisco 4410N. It ignores our
63 * setting, and always treats non-VO ACs as legacy.
64 */
Kalle Valoab133152010-01-12 10:42:31 +020065#define IEEE80211_DEFAULT_UAPSD_QUEUES \
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030066 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
Kalle Valoab133152010-01-12 10:42:31 +020067
68#define IEEE80211_DEFAULT_MAX_SP_LEN \
69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
70
Antonio Quartulli6ae16772012-09-07 13:28:52 +020071#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
72
Jiri Bencf0706e82007-05-05 11:45:53 -070073struct ieee80211_fragment_entry {
74 unsigned long first_frag_time;
75 unsigned int seq;
76 unsigned int rx_queue;
77 unsigned int last_frag;
78 unsigned int extra_len;
79 struct sk_buff_head skb_list;
80 int ccmp; /* Whether fragments were encrypted with CCMP */
81 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
82};
83
84
Johannes Bergc2b13452008-09-11 00:01:55 +020085struct ieee80211_bss {
Johannes Bergef429da2013-02-05 17:48:40 +010086 u32 device_ts_beacon, device_ts_presp;
Johannes Berg8c358bc2012-05-22 22:13:05 +020087
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030088 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020089 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010090
Jiri Bencf0706e82007-05-05 11:45:53 -070091#define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
Alexander Bondar817cee72013-05-19 14:23:57 +030094 struct ieee80211_rate *beacon_rate;
Jiri Bencf0706e82007-05-05 11:45:53 -070095
Johannes Berg00d3f142009-02-10 21:26:00 +010096 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -030097 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +020098 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100100 * otherwise, you probably don't want to use them.
101 */
102 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200103 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800104
105 /* Keep track of the corruption of the last beacon/probe response. */
106 u8 corrupt_data;
107
108 /* Keep track of what bits of information we have valid info for. */
109 u8 valid_data;
110};
111
112/**
113 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
114 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
115 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
116 *
117 * These are bss flags that are attached to a bss in the
118 * @corrupt_data field of &struct ieee80211_bss.
119 */
120enum ieee80211_bss_corrupt_data_flags {
121 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
122 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
123};
124
125/**
126 * enum ieee80211_valid_data_flags - BSS valid data flags
Paul Stewartfcff4f12012-02-23 17:59:53 -0800127 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
128 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
129 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
130 *
131 * These are bss flags that are attached to a bss in the
132 * @valid_data field of &struct ieee80211_bss. They show which parts
133 * of the data structure were recieved as a result of an un-corrupted
134 * beacon/probe response.
135 */
136enum ieee80211_bss_valid_data_flags {
Paul Stewartfcff4f12012-02-23 17:59:53 -0800137 IEEE80211_BSS_VALID_WMM = BIT(1),
138 IEEE80211_BSS_VALID_RATES = BIT(2),
139 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700140};
141
Johannes Berg9ae54c82008-01-31 19:48:20 +0100142typedef unsigned __bitwise__ ieee80211_tx_result;
143#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
144#define TX_DROP ((__force ieee80211_tx_result) 1u)
145#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
146
Johannes Berg5cf121c2008-02-25 16:27:43 +0100147#define IEEE80211_TX_UNICAST BIT(1)
148#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100149
Johannes Berg5cf121c2008-02-25 16:27:43 +0100150struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700151 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100152 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700153 struct ieee80211_local *local;
154 struct ieee80211_sub_if_data *sdata;
155 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700156 struct ieee80211_key *key;
Felix Fietkau0d528d82013-04-22 16:14:41 +0200157 struct ieee80211_tx_rate rate;
Jiri Bencf0706e82007-05-05 11:45:53 -0700158
Johannes Berg056cdd52008-03-26 23:21:47 +0100159 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100160};
161
162
163typedef unsigned __bitwise__ ieee80211_rx_result;
164#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
165#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
166#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
167#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
168
Johannes Berg554891e2010-09-24 12:38:25 +0200169/**
170 * enum ieee80211_packet_rx_flags - packet RX flags
171 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
172 * (incl. multicast frames)
Johannes Berg554891e2010-09-24 12:38:25 +0200173 * @IEEE80211_RX_FRAGMENTED: fragmented frame
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200177 *
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
180 */
181enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200182 IEEE80211_RX_RA_MATCH = BIT(1),
183 IEEE80211_RX_FRAGMENTED = BIT(2),
184 IEEE80211_RX_AMSDU = BIT(3),
185 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100186 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200187};
188
189/**
190 * enum ieee80211_rx_flags - RX data flags
191 *
192 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100193 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
194 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200195 *
196 * These flags are used across handling multiple interfaces
197 * for a single frame.
198 */
199enum ieee80211_rx_flags {
200 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100201 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200202};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100203
204struct ieee80211_rx_data {
205 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100206 struct ieee80211_local *local;
207 struct ieee80211_sub_if_data *sdata;
208 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100209 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100210
Johannes Berg056cdd52008-03-26 23:21:47 +0100211 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200212
213 /*
214 * Index into sequence numbers array, 0..16
215 * since the last (16) is used for non-QoS,
216 * will be 16 on non-QoS frames.
217 */
218 int seqno_idx;
219
220 /*
221 * Index into the security IV/PN arrays, 0..16
222 * since the last (16) is used for CCMP-encrypted
223 * management frames, will be set to 16 on mgmt
224 * frames and 0 on non-QoS frames.
225 */
226 int security_idx;
227
Johannes Berg5cf121c2008-02-25 16:27:43 +0100228 u32 tkip_iv32;
229 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700230};
231
Michal Kazioraf296bd2014-06-05 14:21:36 +0200232struct ieee80211_csa_settings {
233 const u16 *counter_offsets_beacon;
234 const u16 *counter_offsets_presp;
235
236 int n_counter_offsets_beacon;
237 int n_counter_offsets_presp;
238
239 u8 count;
240};
241
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100242struct beacon_data {
243 u8 *head, *tail;
244 int head_len, tail_len;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800245 struct ieee80211_meshconf_ie *meshconf;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200246 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
247 u8 csa_current_counter;
Johannes Berg88600202012-02-13 15:17:18 +0100248 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100249};
250
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300251struct probe_resp {
252 struct rcu_head rcu_head;
253 int len;
Michal Kazioraf296bd2014-06-05 14:21:36 +0200254 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300255 u8 data[0];
256};
257
Marco Porschd012a602012-10-10 12:39:50 -0700258struct ps_data {
259 /* yes, this looks ugly, but guarantees that we can later use
260 * bitmap_empty :)
261 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Joe Perches5fe2bb82013-12-18 16:52:17 -0800262 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
263 __aligned(__alignof__(unsigned long));
Marco Porschd012a602012-10-10 12:39:50 -0700264 struct sk_buff_head bc_buf;
265 atomic_t num_sta_ps; /* number of stations in PS mode */
266 int dtim_count;
267 bool dtim_bc_mc;
268};
269
Jiri Bencf0706e82007-05-05 11:45:53 -0700270struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200271 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300272 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700273
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200274 /* to be used after channel switch. */
275 struct cfg80211_beacon_data *next_beacon;
Michal Kazior4e141da2014-03-05 13:14:08 +0100276 struct list_head vlans; /* write-protected with RTNL and local->mtx */
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400277
Marco Porschd012a602012-10-10 12:39:50 -0700278 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200279 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300280 enum ieee80211_smps_mode req_smps, /* requested smps mode */
281 driver_smps_mode; /* smps mode request */
282
283 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700284};
285
286struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700287 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100288 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700289};
290
291struct ieee80211_if_vlan {
Michal Kazior4e141da2014-03-05 13:14:08 +0100292 struct list_head list; /* write-protected with RTNL and local->mtx */
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100293
294 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200295 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700296};
297
Luis Carlos Coboee385852008-02-23 15:17:11 +0100298struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700299 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
300 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
301 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100302 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
303 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700304 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100305};
306
307#define PREQ_Q_F_START 0x1
308#define PREQ_Q_F_REFRESH 0x2
309struct mesh_preq_queue {
310 struct list_head list;
311 u8 dst[ETH_ALEN];
312 u8 flags;
313};
314
Johannes Berg2eb278e2012-06-05 14:28:42 +0200315#if HZ/100 == 0
316#define IEEE80211_ROC_MIN_LEFT 1
317#else
318#define IEEE80211_ROC_MIN_LEFT (HZ/100)
319#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200320
Johannes Berg2eb278e2012-06-05 14:28:42 +0200321struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200322 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200323 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100324
Johannes Berg2eb278e2012-06-05 14:28:42 +0200325 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100326
327 struct ieee80211_sub_if_data *sdata;
328
Johannes Bergf679f652009-12-23 13:15:34 +0100329 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100330
Johannes Berg2eb278e2012-06-05 14:28:42 +0200331 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100332 bool to_be_freed;
Johannes Bergb4b177a2014-05-14 15:34:41 +0200333 bool on_channel;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200334
Johannes Berg2eb278e2012-06-05 14:28:42 +0200335 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100336
Johannes Berg2eb278e2012-06-05 14:28:42 +0200337 u32 duration, req_duration;
338 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200339 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200340 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200341};
342
Johannes Berg46900292009-02-15 12:44:28 +0100343/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200344enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200345 IEEE80211_STA_CONNECTION_POLL = BIT(1),
346 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100347 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200348 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200349 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530350 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700351 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200352 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000353 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100354 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
355 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200356 IEEE80211_STA_DISABLE_WMM = BIT(14),
Johannes Bergab1faea2009-07-01 21:41:17 +0200357};
358
Johannes Berg66e67e42012-01-20 13:55:27 +0100359struct ieee80211_mgd_auth_data {
360 struct cfg80211_bss *bss;
361 unsigned long timeout;
362 int tries;
363 u16 algorithm, expected_transaction;
364
365 u8 key[WLAN_KEY_LEN_WEP104];
366 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100367 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100368 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100369
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300370 u16 sae_trans, sae_status;
371 size_t data_len;
372 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100373};
374
375struct ieee80211_mgd_assoc_data {
376 struct cfg80211_bss *bss;
377 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100378
379 unsigned long timeout;
380 int tries;
381
382 u16 capability;
383 u8 prev_bssid[ETH_ALEN];
384 u8 ssid[IEEE80211_MAX_SSID_LEN];
385 u8 ssid_len;
386 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100387 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300388 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100389 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100390 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100391
Johannes Berg9dde6422012-05-16 23:43:19 +0200392 u8 ap_ht_param;
393
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100394 struct ieee80211_vht_cap ap_vht_cap;
395
Johannes Berg66e67e42012-01-20 13:55:27 +0100396 size_t ie_len;
397 u8 ie[];
398};
399
Johannes Berg46900292009-02-15 12:44:28 +0100400struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100401 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200402 struct timer_list conn_mon_timer;
403 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530404 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200405 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530406 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200407 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200408 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100409
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100410 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200411 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300412 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100413 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100414 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200415
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100416 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100417 struct ieee80211_mgd_auth_data *auth_data;
418 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100419
Johannes Berg77fdaa12009-07-07 03:45:17 +0200420 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100421
Jiri Bencf0706e82007-05-05 11:45:53 -0700422 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700423
Johannes Berg965beda2009-04-16 13:17:24 +0200424 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200425 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300426 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200427 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100428 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200429 driver_smps_mode; /* smps mode request */
430
431 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200432
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400433 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700434
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300435 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200436 u32 beacon_crc;
437
Johannes Berg1672c0e32013-01-29 15:02:27 +0100438 bool status_acked;
439 bool status_received;
440 __le16 status_fc;
441
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200442 enum {
443 IEEE80211_MFP_DISABLED,
444 IEEE80211_MFP_OPTIONAL,
445 IEEE80211_MFP_REQUIRED
446 } mfp; /* management frame protection */
447
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200448 /*
449 * Bitmask of enabled u-apsd queues,
450 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
451 * to take effect.
452 */
453 unsigned int uapsd_queues;
454
455 /*
456 * Maximum number of buffered frames AP can deliver during a
457 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
458 * Needs a new association to take effect.
459 */
460 unsigned int uapsd_max_sp_len;
461
Jiri Bencf0706e82007-05-05 11:45:53 -0700462 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100463
464 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700465
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100466 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100467
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700468 /* Signal strength from the last Beacon frame in the current BSS. */
469 int last_beacon_signal;
470
471 /*
472 * Weighted average of the signal strength from Beacon frames in the
473 * current BSS. This is in units of 1/16 of the signal unit to maintain
474 * accuracy and to speed up calculations, i.e., the value need to be
475 * divided by 16 to get the actual value.
476 */
477 int ave_beacon_signal;
478
479 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300480 * Number of Beacon frames used in ave_beacon_signal. This can be used
481 * to avoid generating less reliable cqm events that would be based
482 * only on couple of received frames.
483 */
484 unsigned int count_beacon_signal;
485
486 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700487 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
488 * that triggered a cqm event. 0 indicates that no event has been
489 * generated for the current association.
490 */
491 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700492
493 /*
494 * State variables for keeping track of RSSI of the AP currently
495 * connected to and informing driver when RSSI has gone
496 * below/above a certain threshold.
497 */
498 int rssi_min_thold, rssi_max_thold;
499 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800500
501 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
502 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100503 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
504 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Arik Nemtsov81dd2b82014-07-17 17:14:25 +0300505
506 u8 tdls_peer[ETH_ALEN] __aligned(2);
507 struct delayed_work tdls_peer_del_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700508};
509
Johannes Berg46900292009-02-15 12:44:28 +0100510struct ieee80211_if_ibss {
511 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200512 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100513
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200514 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200515
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300516 u32 basic_rates;
517
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200518 bool fixed_bssid;
519 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200520 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100521
Antonio Quartulli267335d2012-01-31 20:25:47 +0100522 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200523 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100524
Felix Fietkau4d196e42012-03-01 11:23:37 +0100525 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200526 u8 ssid[IEEE80211_MAX_SSID_LEN];
527 u8 ssid_len, ie_len;
528 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200529 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100530
531 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200532 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100533 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100534
Simon Wunderlich822854b2013-06-28 10:39:59 +0200535 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
536 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
537
Johannes Berg8bf11d82011-12-15 11:17:37 +0100538 spinlock_t incomplete_lock;
539 struct list_head incomplete_stations;
540
Johannes Berg46900292009-02-15 12:44:28 +0100541 enum {
542 IEEE80211_IBSS_MLME_SEARCH,
543 IEEE80211_IBSS_MLME_JOINED,
544 } state;
545};
546
Javier Cardonadbf498f2012-03-31 11:31:32 -0700547/**
548 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
549 *
550 * these declarations define the interface, which enables
551 * vendor-specific mesh synchronization
552 *
553 */
554struct ieee802_11_elems;
555struct ieee80211_mesh_sync_ops {
556 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
557 u16 stype,
558 struct ieee80211_mgmt *mgmt,
559 struct ieee802_11_elems *elems,
560 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800561
562 /* should be called with beacon_data under RCU read lock */
563 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
564 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700565 /* add other framework functions here */
566};
567
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700568struct mesh_csa_settings {
569 struct rcu_head rcu_head;
570 struct cfg80211_csa_settings settings;
571};
572
Johannes Berg472dbc42008-09-11 00:01:49 +0200573struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200574 struct timer_list housekeeping_timer;
575 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000576 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200577
Javier Cardona18889232009-08-10 12:15:52 -0700578 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700579 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200580
581 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
582 size_t mesh_id_len;
583 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000584 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200585 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000586 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200587 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000588 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700589 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000590 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700591 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000592 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000593 /* Local mesh Sequence Number */
594 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200595 /* Last used PREQ ID */
596 u32 preq_id;
597 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000598 /* Timestamp of last SN update */
599 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800600 /* Time when it's ok to send next PERR */
601 unsigned long next_perr;
602 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200603 unsigned long last_preq;
604 struct mesh_rmc *rmc;
605 spinlock_t mesh_preq_queue_lock;
606 struct mesh_preq_queue preq_queue;
607 int preq_queue_len;
608 struct mesh_stats mshstats;
609 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700610 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200611 u32 mesh_seqnum;
612 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700613 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800614 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700615 const u8 *ie;
616 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700617 enum {
618 IEEE80211_MESH_SEC_NONE = 0x0,
619 IEEE80211_MESH_SEC_AUTHED = 0x1,
620 IEEE80211_MESH_SEC_SECURED = 0x2,
621 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800622 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700623 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200624 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700625 s64 sync_offset_clockdrift_max;
626 spinlock_t sync_offset_lock;
627 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100628 /* mesh power save */
629 enum nl80211_mesh_power_mode nonpeer_pm;
630 int ps_peers_light_sleep;
631 int ps_peers_deep_sleep;
632 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700633 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700634 struct mesh_csa_settings __rcu *csa;
Luciano Coelho0cb4d4d2014-01-13 19:42:58 +0200635 enum {
636 IEEE80211_MESH_CSA_ROLE_NONE,
637 IEEE80211_MESH_CSA_ROLE_INIT,
638 IEEE80211_MESH_CSA_ROLE_REPEATER,
639 } csa_role;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700640 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700641 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800642
643 /* offset from skb->data while building IE */
644 int meshconf_offset;
Johannes Berg472dbc42008-09-11 00:01:49 +0200645};
Johannes Berg902acc72008-02-23 15:17:19 +0100646
647#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200648#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
649 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100650#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200651#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100652 do { } while (0)
653#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700654
Johannes Berg213cd112008-09-11 00:01:54 +0200655/**
656 * enum ieee80211_sub_if_data_flags - virtual interface flags
657 *
658 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
659 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200660 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
661 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
662 * associated stations and deliver multicast frames both
663 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200664 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100665 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200666 */
667enum ieee80211_sub_if_data_flags {
668 IEEE80211_SDATA_ALLMULTI = BIT(0),
669 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100670 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
671 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200672 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100673 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200674};
675
Johannes Berg34d4bc42010-08-27 12:35:58 +0200676/**
677 * enum ieee80211_sdata_state_bits - virtual interface state bits
678 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
679 * mirrors netif_running() but is separate for interface type
680 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200681 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
682 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100683 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
684 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200685 */
686enum ieee80211_sdata_state_bits {
687 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200688 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100689 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200690};
691
Michal Kaziord01a1e62012-06-26 14:37:16 +0200692/**
693 * enum ieee80211_chanctx_mode - channel context configuration mode
694 *
695 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
696 * multiple interfaces
697 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
698 * only by a single interface. This can be used for example for
699 * non-fixed channel IBSS.
700 */
701enum ieee80211_chanctx_mode {
702 IEEE80211_CHANCTX_SHARED,
703 IEEE80211_CHANCTX_EXCLUSIVE
704};
705
Michal Kazior5bcae312014-06-25 12:35:06 +0200706/**
707 * enum ieee80211_chanctx_replace_state - channel context replacement state
708 *
709 * This is used for channel context in-place reservations that require channel
710 * context switch/swap.
711 *
712 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
713 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
714 * by a (not yet registered) channel context pointed by %replace_ctx.
715 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
716 * replaces an existing channel context pointed to by %replace_ctx.
717 */
718enum ieee80211_chanctx_replace_state {
719 IEEE80211_CHANCTX_REPLACE_NONE,
720 IEEE80211_CHANCTX_WILL_BE_REPLACED,
721 IEEE80211_CHANCTX_REPLACES_OTHER,
722};
723
Michal Kaziord01a1e62012-06-26 14:37:16 +0200724struct ieee80211_chanctx {
725 struct list_head list;
726 struct rcu_head rcu_head;
727
Michal Kazior484298a2014-04-09 15:29:26 +0200728 struct list_head assigned_vifs;
Michal Kaziore3afb922014-04-09 15:29:27 +0200729 struct list_head reserved_vifs;
Michal Kazior484298a2014-04-09 15:29:26 +0200730
Michal Kazior5bcae312014-06-25 12:35:06 +0200731 enum ieee80211_chanctx_replace_state replace_state;
732 struct ieee80211_chanctx *replace_ctx;
733
Michal Kaziord01a1e62012-06-26 14:37:16 +0200734 enum ieee80211_chanctx_mode mode;
Johannes Berg8a61af62012-12-13 17:42:30 +0100735 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200736
737 struct ieee80211_chanctx_conf conf;
738};
739
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800740struct mac80211_qos_map {
741 struct cfg80211_qos_map qos_map;
742 struct rcu_head rcu_head;
743};
744
Jiri Bencf0706e82007-05-05 11:45:53 -0700745struct ieee80211_sub_if_data {
746 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700747
748 struct wireless_dev wdev;
749
Johannes Berg11a843b2007-08-28 17:01:55 -0400750 /* keys */
751 struct list_head key_list;
752
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530753 /* count for keys needing tailroom space allocation */
754 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100755 int crypto_tx_tailroom_pending_dec;
756 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530757
Jiri Bencf0706e82007-05-05 11:45:53 -0700758 struct net_device *dev;
759 struct ieee80211_local *local;
760
Jiri Slaby13262ff2007-08-28 17:01:54 -0400761 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200762
Johannes Berg34d4bc42010-08-27 12:35:58 +0200763 unsigned long state;
764
Jiri Bencf0706e82007-05-05 11:45:53 -0700765 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700766
Johannes Berg47846c92009-11-25 17:46:19 +0100767 char name[IFNAMSIZ];
768
Jiri Bencf0706e82007-05-05 11:45:53 -0700769 /* Fragment table for host-based reassembly */
770 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
771 unsigned int fragment_next;
772
Simon Wunderlichb53be792011-11-18 14:20:44 +0100773 /* TID bitmap for NoAck policy */
774 u16 noack_map;
775
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300776 /* bit field of ACM bits (BIT(802.1D tag)) */
777 u8 wmm_acm;
778
Johannes Berg40b275b2011-05-13 14:15:49 +0200779 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
780 struct ieee80211_key __rcu *default_unicast_key;
781 struct ieee80211_key __rcu *default_multicast_key;
782 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700783
Johannes Berg94778282008-10-10 13:21:59 +0200784 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300785 __be16 control_port_protocol;
786 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200787 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200788
Johannes Berg54bcbc62012-03-28 11:04:25 +0200789 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800790 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300791
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200792 struct work_struct csa_finalize_work;
Michal Kazior59af6922014-04-09 15:10:59 +0200793 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
Luciano Coelho33787fc2013-11-11 20:34:54 +0200794 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200795
Michal Kazior484298a2014-04-09 15:29:26 +0200796 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
Michal Kaziore3afb922014-04-09 15:29:27 +0200797 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
Michal Kazior484298a2014-04-09 15:29:26 +0200798
Luciano Coelho11335a52013-10-30 13:09:39 +0200799 /* context reservation -- protected with chanctx_mtx */
800 struct ieee80211_chanctx *reserved_chanctx;
801 struct cfg80211_chan_def reserved_chandef;
Michal Kazior09332482014-04-09 15:29:25 +0200802 bool reserved_radar_required;
Michal Kazior5bcae312014-06-25 12:35:06 +0200803 bool reserved_ready;
Luciano Coelho11335a52013-10-30 13:09:39 +0200804
Johannes Berg04ecd252012-09-11 14:34:12 +0200805 /* used to reconfigure hardware SM PS */
806 struct work_struct recalc_smps;
807
Johannes Berg64592c82010-06-10 10:21:31 +0200808 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200809 struct sk_buff_head skb_queue;
810
Johannes Berg04ecd252012-09-11 14:34:12 +0200811 u8 needed_rx_chains;
812 enum ieee80211_smps_mode smps_mode;
813
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200814 int user_power_level; /* in dBm */
815 int ap_power_level; /* in dBm */
816
Simon Wunderlich164eb022013-02-08 18:16:20 +0100817 bool radar_required;
818 struct delayed_work dfs_cac_timer_work;
819
Johannes Berg3e122be2008-07-09 14:40:34 +0200820 /*
821 * AP this belongs to: self in AP mode and
822 * corresponding AP in VLAN mode, NULL for
823 * all others (might be needed later in IBSS)
824 */
825 struct ieee80211_if_ap *bss;
826
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200827 /* bitmap of allowed (non-MCS) rate indexes for rate control */
828 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200829
830 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100831 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700832
833 union {
834 struct ieee80211_if_ap ap;
835 struct ieee80211_if_wds wds;
836 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100837 struct ieee80211_if_managed mgd;
838 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200839 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100840 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700841 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700842
843#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300844 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700845 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100846 struct dentry *default_unicast_key;
847 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200848 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100849 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700850#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100851
Johannes Berg32bfd352007-12-19 01:31:26 +0100852 /* must be last, dynamically sized area in this! */
853 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700854};
855
Johannes Berg32bfd352007-12-19 01:31:26 +0100856static inline
857struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
858{
859 return container_of(p, struct ieee80211_sub_if_data, vif);
860}
861
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200862static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
863 __acquires(&sdata->wdev.mtx)
864{
865 mutex_lock(&sdata->wdev.mtx);
866 __acquire(&sdata->wdev.mtx);
867}
868
869static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
870 __releases(&sdata->wdev.mtx)
871{
872 mutex_unlock(&sdata->wdev.mtx);
873 __release(&sdata->wdev.mtx);
874}
875
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100876#define sdata_dereference(p, sdata) \
877 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
878
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200879static inline void
880sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
881{
882 lockdep_assert_held(&sdata->wdev.mtx);
883}
884
Johannes Berg55de9082012-07-26 17:24:39 +0200885static inline enum ieee80211_band
886ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
887{
888 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
889 struct ieee80211_chanctx_conf *chanctx_conf;
890
891 rcu_read_lock();
892 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
893 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100894 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200895 rcu_read_unlock();
896
897 return band;
898}
899
Simon Wunderlich438b61b2013-07-08 16:55:51 +0200900static inline int
901ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
902{
903 switch (chandef->width) {
904 case NL80211_CHAN_WIDTH_5:
905 return 2;
906 case NL80211_CHAN_WIDTH_10:
907 return 1;
908 default:
909 return 0;
910 }
911}
912
913static inline int
914ieee80211_vif_get_shift(struct ieee80211_vif *vif)
915{
916 struct ieee80211_chanctx_conf *chanctx_conf;
917 int shift = 0;
918
919 rcu_read_lock();
920 chanctx_conf = rcu_dereference(vif->chanctx_conf);
921 if (chanctx_conf)
922 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
923 rcu_read_unlock();
924
925 return shift;
926}
927
Michal Kazior08cf42e2014-07-16 12:12:15 +0200928struct ieee80211_rx_agg {
929 u8 addr[ETH_ALEN];
930 u16 tid;
931};
932
Johannes Bergc1475ca2010-06-10 10:21:37 +0200933enum sdata_queue_type {
934 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
935 IEEE80211_SDATA_QUEUE_AGG_START = 1,
936 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
Michal Kazior08cf42e2014-07-16 12:12:15 +0200937 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
938 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
Johannes Bergc1475ca2010-06-10 10:21:37 +0200939};
940
Jiri Bencf0706e82007-05-05 11:45:53 -0700941enum {
942 IEEE80211_RX_MSG = 1,
943 IEEE80211_TX_STATUS_MSG = 2,
944};
945
Kalle Valoce7c9112008-12-18 23:35:20 +0200946enum queue_stop_reason {
947 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200948 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100949 IEEE80211_QUEUE_STOP_REASON_CSA,
950 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100951 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200952 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600953 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +0100954 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Arik Nemtsovdb67d662014-06-11 17:18:24 +0300955 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
Luciano Coelhocca07b02014-06-13 16:30:05 +0300956
957 IEEE80211_QUEUE_STOP_REASONS,
Kalle Valoce7c9112008-12-18 23:35:20 +0200958};
959
Luciano Coelho65a65382010-12-21 16:02:17 +0200960#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100961struct tpt_led_trigger {
962 struct led_trigger trig;
963 char name[32];
964 const struct ieee80211_tpt_blink *blink_table;
965 unsigned int blink_table_len;
966 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100967 unsigned long prev_traffic;
968 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100969 unsigned int active, want;
970 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100971};
Luciano Coelho65a65382010-12-21 16:02:17 +0200972#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100973
Matti Gottliebad38bfc2013-11-18 19:06:45 +0200974/*
975 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges
976 *
977 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a
978 * certain latency range (in Milliseconds). Each station that uses these
979 * ranges will have bins to count the amount of frames received in that range.
980 * The user can configure the ranges via debugfs.
981 * If ranges is NULL then Tx latency statistics bins are disabled for all
982 * stations.
983 *
984 * @n_ranges: number of ranges that are taken in account
985 * @ranges: the ranges that the user requested or NULL if disabled.
986 */
987struct ieee80211_tx_latency_bin_ranges {
988 int n_ranges;
989 u32 ranges[];
990};
991
Helmut Schaa142b9f52009-07-23 13:18:01 +0200992/**
993 * mac80211 scan flags - currently active scan mode
994 *
995 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
996 * well be on the operating channel
997 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
998 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700999 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1000 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +02001001 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1002 * that the scan completed.
1003 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1004 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001005 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1006 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +02001007 */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001008enum {
1009 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001010 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -07001011 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +02001012 SCAN_COMPLETED,
1013 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +03001014 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +02001015};
1016
1017/**
1018 * enum mac80211_scan_state - scan state machine states
1019 *
1020 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1021 * determines if we should keep on scanning or switch back to the
1022 * operating channel
1023 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1024 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +01001025 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1026 * send out data
1027 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -07001028 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +02001029 */
1030enum mac80211_scan_state {
1031 SCAN_DECISION,
1032 SCAN_SET_CHANNEL,
1033 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +01001034 SCAN_SUSPEND,
1035 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -07001036 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +02001037};
1038
Jiri Bencf0706e82007-05-05 11:45:53 -07001039struct ieee80211_local {
1040 /* embed the driver visible part.
1041 * don't cast (use the static inlines below), but we keep
1042 * it first anyway so they become a no-op */
1043 struct ieee80211_hw hw;
1044
1045 const struct ieee80211_ops *ops;
1046
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001047 /*
1048 * private workqueue to mac80211. mac80211 makes this accessible
1049 * via ieee80211_queue_work()
1050 */
1051 struct workqueue_struct *workqueue;
1052
Johannes Berge4e72fb2009-03-23 17:28:42 +01001053 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Luciano Coelhocca07b02014-06-13 16:30:05 +03001054 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
Johannes Berg96f5e662009-02-12 00:51:53 +01001055 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +02001056 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +01001057
Jiri Bencf0706e82007-05-05 11:45:53 -07001058 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +01001059 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +01001060 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001061 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1062 fif_probe_req;
1063 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001064 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001065
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001066 bool wiphy_ciphers_allocated;
1067
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001068 bool use_chanctx;
1069
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001070 /* protects the aggregated multicast list and filter calls */
1071 spinlock_t filter_lock;
1072
Johannes Berg3ac64be2009-08-17 16:16:53 +02001073 /* used for uploading changed mc list */
1074 struct work_struct reconfig_filter;
1075
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001076 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001077 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001078
Johannes Bergd0709a62008-02-25 16:27:46 +01001079 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001080
1081 /*
1082 * suspended is true if we finished all the suspend _and_ we have
1083 * not yet come up from resume. This is to be used by mac80211
1084 * to ensure driver sanity during suspend and mac80211's own
1085 * sanity. It can eventually be used for WoW as well.
1086 */
1087 bool suspended;
1088
1089 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001090 * Resuming is true while suspended, but when we're reprogramming the
1091 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1092 * again even though some other parts of the stack are still suspended
1093 * and we still drop received frames to avoid waking the stack.
1094 */
1095 bool resuming;
1096
1097 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001098 * quiescing is true during the suspend process _only_ to
1099 * ease timer cancelling etc.
1100 */
1101 bool quiescing;
1102
Johannes Bergea77f122009-08-21 14:44:45 +02001103 /* device is started */
1104 bool started;
1105
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001106 /* device is during a HW reconfig */
1107 bool in_reconfig;
1108
Johannes Bergeecc4802011-05-04 15:37:29 +02001109 /* wowlan is enabled -- don't reconfig on resume */
1110 bool wowlan;
1111
Simon Wunderlich164eb022013-02-08 18:16:20 +01001112 /* DFS/radar detection is enabled */
1113 bool radar_detect_enabled;
1114 struct work_struct radar_detected_work;
1115
Johannes Berg04ecd252012-09-11 14:34:12 +02001116 /* number of RX chains the hardware has */
1117 u8 rx_chains;
1118
Johannes Bergb306f452007-07-10 19:32:08 +02001119 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001120
Jiri Bencf0706e82007-05-05 11:45:53 -07001121 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1122 * added to skb_queue will be processed, but frames in
1123 * skb_queue_unreliable may be dropped if the total length of these
1124 * queues increases over the limit. */
1125#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1126 struct tasklet_struct tasklet;
1127 struct sk_buff_head skb_queue;
1128 struct sk_buff_head skb_queue_unreliable;
1129
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001130 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001131
Johannes Bergd0709a62008-02-25 16:27:46 +01001132 /* Station data */
1133 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001134 * The mutex only protects the list, hash table and
1135 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001136 */
Johannes Berg34e89502010-02-03 13:59:58 +01001137 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001138 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001139 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001140 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +02001141 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -07001142 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001143 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001144
Matti Gottliebad38bfc2013-11-18 19:06:45 +02001145 /*
1146 * Tx latency statistics parameters for all stations.
1147 * Can enable via debugfs (NULL when disabled).
1148 */
1149 struct ieee80211_tx_latency_bin_ranges __rcu *tx_latency;
1150
Johannes Berg2a577d92009-03-23 17:28:37 +01001151 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001152 struct tasklet_struct tx_pending_tasklet;
1153
Johannes Berga6a67db2010-06-10 10:21:41 +02001154 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001155
Johannes Berg53918992007-09-26 15:19:47 +02001156 /* number of interfaces with corresponding IFF_ flags */
1157 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -07001158
1159 struct rate_control_ref *rate_ctrl;
1160
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001161 struct crypto_cipher *wep_tx_tfm;
1162 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001163 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001164
Johannes Bergc771c9d2009-01-23 22:54:03 +01001165 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001166 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001167 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001168
Johannes Bergb16bd152008-04-11 21:40:35 +02001169 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001170 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001171 * key pointers (write access, they're RCU.)
1172 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001173 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001174
Johannes Berga1699b72010-07-30 16:46:07 +02001175 /* mutex for scan and work locking */
1176 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001177
Johannes Bergc2b13452008-09-11 00:01:55 +02001178 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001179 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001180 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001181 struct cfg80211_scan_request *int_scan_req;
David Spinadelc56ef672014-02-05 15:21:13 +02001182 struct cfg80211_scan_request *scan_req;
1183 struct ieee80211_scan_request *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001184 struct cfg80211_chan_def scan_chandef;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001185 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001186 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001187 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001188 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001189
Luciano Coelho85a99942011-05-12 16:28:29 +03001190 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001191 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
David Spinadeld43c6b62013-12-08 21:48:57 +02001192 struct cfg80211_sched_scan_request *sched_scan_req;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001193
Helmut Schaadf13cce2010-02-24 14:19:21 +01001194 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001195 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001196 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001197 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001198 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001199 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001200
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001201 /* Temporary remain-on-channel for off-channel operations */
1202 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001203
Michal Kaziord01a1e62012-06-26 14:37:16 +02001204 /* channel contexts */
1205 struct list_head chanctx_list;
1206 struct mutex chanctx_mtx;
1207
Jiri Bencf0706e82007-05-05 11:45:53 -07001208 /* SNMP counters */
1209 /* dot11CountersTable */
1210 u32 dot11TransmittedFragmentCount;
1211 u32 dot11MulticastTransmittedFrameCount;
1212 u32 dot11FailedCount;
1213 u32 dot11RetryCount;
1214 u32 dot11MultipleRetryCount;
1215 u32 dot11FrameDuplicateCount;
1216 u32 dot11ReceivedFragmentCount;
1217 u32 dot11MulticastReceivedFrameCount;
1218 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001219
1220#ifdef CONFIG_MAC80211_LEDS
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001221 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001222 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001223 char tx_led_name[32], rx_led_name[32],
1224 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001225#endif
1226
Jiri Bencf0706e82007-05-05 11:45:53 -07001227#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1228 /* TX/RX handler statistics */
1229 unsigned int tx_handlers_drop;
1230 unsigned int tx_handlers_queued;
1231 unsigned int tx_handlers_drop_unencrypted;
1232 unsigned int tx_handlers_drop_fragment;
1233 unsigned int tx_handlers_drop_wep;
1234 unsigned int tx_handlers_drop_not_assoc;
1235 unsigned int tx_handlers_drop_unauth_port;
1236 unsigned int rx_handlers_drop;
1237 unsigned int rx_handlers_queued;
1238 unsigned int rx_handlers_drop_nullfunc;
1239 unsigned int rx_handlers_drop_defrag;
1240 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001241 unsigned int tx_expand_skb_head;
1242 unsigned int tx_expand_skb_head_cloned;
1243 unsigned int rx_expand_skb_head;
1244 unsigned int rx_expand_skb_head2;
1245 unsigned int rx_handlers_fragments;
1246 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001247#define I802_DEBUG_INC(c) (c)++
1248#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1249#define I802_DEBUG_INC(c) do { } while (0)
1250#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1251
1252
Jiri Bencf0706e82007-05-05 11:45:53 -07001253 int total_ps_buffered; /* total number of all buffered unicast and
1254 * multicast packets for power saving stations
1255 */
Kalle Valo520eb822008-12-18 23:35:27 +02001256
Kalle Valo572e0012009-02-10 17:09:31 +02001257 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001258 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001259 /*
1260 * PS can only be enabled when we have exactly one managed
1261 * interface (and monitors) in PS, this then points there.
1262 */
1263 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001264 struct work_struct dynamic_ps_enable_work;
1265 struct work_struct dynamic_ps_disable_work;
1266 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001267 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001268 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001269 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001270
Juuso Oikarinenff616382010-06-09 09:51:52 +03001271 /*
1272 * The dynamic ps timeout configured from user space via WEXT -
1273 * this will override whatever chosen by mac80211 internally.
1274 */
1275 int dynamic_ps_forced_timeout;
1276
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001277 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001278
Johannes Berg0f782312009-12-01 13:37:02 +01001279 enum ieee80211_smps_mode smps_mode;
1280
Johannes Bergf2753dd2009-04-14 10:09:24 +02001281 struct work_struct restart_work;
1282
Jiri Bence9f207f2007-05-05 11:46:38 -07001283#ifdef CONFIG_MAC80211_DEBUGFS
1284 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001285 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001286 struct dentry *keys;
1287 } debugfs;
1288#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001289
Johannes Berg2eb278e2012-06-05 14:28:42 +02001290 /*
1291 * Remain-on-channel support
1292 */
1293 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001294 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001295 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001296 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001297
Johannes Berga729cff2011-11-06 14:13:34 +01001298 struct idr ack_status_frames;
1299 spinlock_t ack_status_lock;
1300
Johannes Bergf142c6b2012-06-18 20:07:15 +02001301 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1302
Johannes Berg06d181a2014-02-04 20:51:09 +01001303 struct napi_struct *napi;
1304
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001305 /* virtual monitor interface */
1306 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001307 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001308};
1309
Johannes Berg3e122be2008-07-09 14:40:34 +02001310static inline struct ieee80211_sub_if_data *
1311IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1312{
Johannes Berg3e122be2008-07-09 14:40:34 +02001313 return netdev_priv(dev);
1314}
1315
Johannes Berg71bbc992012-06-15 15:30:18 +02001316static inline struct ieee80211_sub_if_data *
1317IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1318{
1319 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1320}
1321
Johannes Bergc1475ca2010-06-10 10:21:37 +02001322/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001323struct ieee80211_ra_tid {
1324 u8 ra[ETH_ALEN];
1325 u16 tid;
1326};
1327
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001328/* this struct holds the value parsing from channel switch IE */
1329struct ieee80211_csa_ie {
1330 struct cfg80211_chan_def chandef;
1331 u8 mode;
1332 u8 count;
1333 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001334 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001335};
1336
Johannes Bergdd769862011-11-18 16:54:50 +01001337/* Parsed Information Elements */
1338struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001339 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001340 size_t total_len;
1341
1342 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001343 const u8 *ssid;
1344 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001345 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001346 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001347 const u8 *challenge;
1348 const u8 *rsn;
1349 const u8 *erp_info;
1350 const u8 *ext_supp_rates;
1351 const u8 *wmm_info;
1352 const u8 *wmm_param;
1353 const struct ieee80211_ht_cap *ht_cap_elem;
1354 const struct ieee80211_ht_operation *ht_operation;
1355 const struct ieee80211_vht_cap *vht_cap_elem;
1356 const struct ieee80211_vht_operation *vht_operation;
1357 const struct ieee80211_meshconf_ie *mesh_config;
1358 const u8 *mesh_id;
1359 const u8 *peering;
1360 const __le16 *awake_window;
1361 const u8 *preq;
1362 const u8 *prep;
1363 const u8 *perr;
1364 const struct ieee80211_rann_ie *rann;
1365 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001366 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001367 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001368 const u8 *country_elem;
1369 const u8 *pwr_constr_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001370 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001371 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001372 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001373 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001374
1375 /* length of them, respectively */
1376 u8 ssid_len;
1377 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001378 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001379 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001380 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001381 u8 ext_supp_rates_len;
1382 u8 wmm_info_len;
1383 u8 wmm_param_len;
1384 u8 mesh_id_len;
1385 u8 peering_len;
1386 u8 preq_len;
1387 u8 prep_len;
1388 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001389 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001390
1391 /* whether a parse error occurred while retrieving these elements */
1392 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001393};
1394
Jiri Bencf0706e82007-05-05 11:45:53 -07001395static inline struct ieee80211_local *hw_to_local(
1396 struct ieee80211_hw *hw)
1397{
1398 return container_of(hw, struct ieee80211_local, hw);
1399}
1400
Jiri Bencf0706e82007-05-05 11:45:53 -07001401
Johannes Berg571ecf62007-07-27 15:43:22 +02001402static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1403{
Joe Perchesb203ca32012-05-08 18:56:52 +00001404 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001405 is_broadcast_ether_addr(raddr);
1406}
1407
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001408static inline bool
1409ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1410{
1411 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1412 status->flag & RX_FLAG_MACTIME_END);
1413 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1414}
Johannes Berg571ecf62007-07-27 15:43:22 +02001415
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001416u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1417 struct ieee80211_rx_status *status,
1418 unsigned int mpdu_len,
1419 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001420int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001421void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001422void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1423 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001424void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001425u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001426
Johannes Berg46900292009-02-15 12:44:28 +01001427/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001428void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001429int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1430 struct cfg80211_auth_request *req);
1431int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1432 struct cfg80211_assoc_request *req);
1433int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001434 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001435int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001436 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001437void ieee80211_send_pspoll(struct ieee80211_local *local,
1438 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001439void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001440void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001441int ieee80211_max_network_latency(struct notifier_block *nb,
1442 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001443int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001444void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1445void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1446 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001447void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001448void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001449void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001450void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1451 __le16 fc, bool acked);
Johannes Berg1a1cb742014-03-19 09:55:55 +01001452void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001453void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001454
Johannes Berg46900292009-02-15 12:44:28 +01001455/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001456void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1457void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001458void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1459 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001460int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1461 struct cfg80211_ibss_params *params);
1462int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001463void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1464void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1465 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001466int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1467 struct cfg80211_csa_settings *csa_settings);
1468int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1469void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001470
1471/* mesh code */
1472void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1473void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1474 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001475int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
Luciano Coelho66e01cf2014-01-13 19:43:00 +02001476 struct cfg80211_csa_settings *csa_settings);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001477int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001478
Johannes Berg9c6bd792008-09-11 00:01:52 +02001479/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001480void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001481int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1482 const u8 *ssid, u8 ssid_len,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001483 struct ieee80211_channel *chan,
1484 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001485int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001486 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001487void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001488void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001489void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001490
Johannes Berg0a51b272008-09-08 17:44:25 +02001491void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001492struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001493ieee80211_bss_info_update(struct ieee80211_local *local,
1494 struct ieee80211_rx_status *rx_status,
1495 struct ieee80211_mgmt *mgmt,
1496 size_t len,
1497 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001498 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001499void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001500 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001501
Luciano Coelho79f460c2011-05-11 17:09:36 +03001502/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001503int
1504__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1505 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001506int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1507 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001508int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
Johannes Bergf6837ba2014-04-30 14:19:04 +02001509void ieee80211_sched_scan_end(struct ieee80211_local *local);
Luciano Coelho85a99942011-05-12 16:28:29 +03001510void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001511
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001512/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001513void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1514void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001515void ieee80211_roc_setup(struct ieee80211_local *local);
1516void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001517void ieee80211_roc_purge(struct ieee80211_local *local,
1518 struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001519void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001520void ieee80211_sw_roc_work(struct work_struct *work);
1521void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001522
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001523/* channel switch handling */
1524void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001525int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1526 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001527
Johannes Berg3e122be2008-07-09 14:40:34 +02001528/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001529int ieee80211_iface_init(void);
1530void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001531int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001532 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001533 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001534int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001535 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001536void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001537void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001538u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001539void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001540void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1541 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001542int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1543void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001544int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1545void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001546
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001547bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1548void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1549
Johannes Berg9607e6b2009-12-23 13:15:31 +01001550static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1551{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001552 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001553}
1554
Johannes Berge2ebc742007-07-27 15:43:22 +02001555/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001556void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1557void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001558netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1559 struct net_device *dev);
1560netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1561 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001562void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1563 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001564
Johannes Bergde1ede72008-09-09 14:42:50 +02001565/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001566void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1567 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001568bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001569 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001570 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001571 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001572void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1573 const u8 *da, u16 tid,
1574 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001575int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1576 enum ieee80211_smps_mode smps, const u8 *da,
1577 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001578void ieee80211_request_smps_ap_work(struct work_struct *work);
1579void ieee80211_request_smps_mgd_work(struct work_struct *work);
1580bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1581 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001582
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001583void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001584 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001585void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001586 u16 initiator, u16 reason, bool stop);
Michal Kazior08cf42e2014-07-16 12:12:15 +02001587void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1588 u8 dialog_token, u16 timeout,
1589 u16 start_seq_num, u16 ba_policy, u16 tid,
1590 u16 buf_size, bool tx);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001591void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1592 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001593void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1594 struct sta_info *sta,
1595 struct ieee80211_mgmt *mgmt, size_t len);
1596void ieee80211_process_addba_resp(struct ieee80211_local *local,
1597 struct sta_info *sta,
1598 struct ieee80211_mgmt *mgmt,
1599 size_t len);
1600void ieee80211_process_addba_request(struct ieee80211_local *local,
1601 struct sta_info *sta,
1602 struct ieee80211_mgmt *mgmt,
1603 size_t len);
1604
Johannes Berg849b7962009-02-10 21:25:54 +01001605int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001606 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001607int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001608 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001609void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1610void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001611void ieee80211_ba_session_work(struct work_struct *work);
1612void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001613void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001614
Johannes Berg04ecd252012-09-11 14:34:12 +02001615u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1616
Mahesh Palivela818255e2012-10-10 11:33:04 +00001617/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001618void
1619ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1620 struct ieee80211_supported_band *sband,
1621 const struct ieee80211_vht_cap *vht_cap_ie,
1622 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001623enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001624void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Marek Kwaczynskib1bce142014-02-03 14:44:44 +01001625u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1626 struct sta_info *sta, u8 opmode,
1627 enum ieee80211_band band, bool nss_only);
Johannes Berg0af83d32012-12-27 18:55:36 +01001628void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1629 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001630 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001631void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1632 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001633
Johannes Berg39192c02008-09-09 14:49:03 +02001634/* Spectrum management */
1635void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1636 struct ieee80211_mgmt *mgmt,
1637 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001638/**
1639 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1640 * @sdata: the sdata of the interface which has received the frame
1641 * @elems: parsed 802.11 elements received with the frame
1642 * @beacon: indicates if the frame was a beacon or probe response
1643 * @current_band: indicates the current band
1644 * @sta_flags: contains information about own capabilities and restrictions
1645 * to decide which channel switch announcements can be accepted. Only the
1646 * following subset of &enum ieee80211_sta_flags are evaluated:
1647 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1648 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1649 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001650 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001651 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1652 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001653 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1654 */
1655int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1656 struct ieee802_11_elems *elems, bool beacon,
1657 enum ieee80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001658 u32 sta_flags, u8 *bssid,
1659 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001660
Johannes Bergf2753dd2009-04-14 10:09:24 +02001661/* Suspend/resume and hw reconfiguration */
1662int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001663void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001664
Johannes Bergeecc4802011-05-04 15:37:29 +02001665int __ieee80211_suspend(struct ieee80211_hw *hw,
1666 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001667
1668static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1669{
John W. Linville85f72bc2010-09-01 16:12:28 -04001670 struct ieee80211_local *local = hw_to_local(hw);
1671
1672 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1673 "%s: resume with hardware scan still in progress\n",
1674 wiphy_name(hw->wiphy));
1675
Johannes Bergf2753dd2009-04-14 10:09:24 +02001676 return ieee80211_reconfig(hw_to_local(hw));
1677}
Bob Copeland665af4f2009-01-19 11:20:53 -05001678
Johannes Bergc2d15602007-07-27 15:43:23 +02001679/* utility functions/constants */
Johannes Berg8a47cea2014-01-20 23:55:44 +01001680extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001681u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001682 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001683int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001684 int rate, int erp, int short_preamble,
1685 int shift);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001686void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001687 struct ieee80211_hdr *hdr, const u8 *tsc,
1688 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001689void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1690 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001691void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1692 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001693
Johannes Berg55de9082012-07-26 17:24:39 +02001694void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1695 struct sk_buff *skb, int tid,
1696 enum ieee80211_band band);
1697
1698static inline void
1699ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1700 struct sk_buff *skb, int tid,
1701 enum ieee80211_band band)
1702{
1703 rcu_read_lock();
1704 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1705 rcu_read_unlock();
1706}
1707
1708static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1709 struct sk_buff *skb, int tid)
1710{
1711 struct ieee80211_chanctx_conf *chanctx_conf;
1712
1713 rcu_read_lock();
1714 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1715 if (WARN_ON(!chanctx_conf)) {
1716 rcu_read_unlock();
1717 kfree_skb(skb);
1718 return;
1719 }
1720
1721 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001722 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001723 rcu_read_unlock();
1724}
1725
1726static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001727 struct sk_buff *skb)
1728{
1729 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1730 ieee80211_tx_skb_tid(sdata, skb, 7);
1731}
1732
Johannes Berg35d865a2013-05-28 10:54:03 +02001733u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001734 struct ieee802_11_elems *elems,
1735 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001736static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1737 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001738 struct ieee802_11_elems *elems)
1739{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001740 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001741}
1742
Michal Kazior83eb9352014-07-16 12:09:31 +02001743static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
1744{
1745 struct sk_buff *tail = skb_peek_tail(frames);
1746 struct ieee80211_rx_status *status;
1747
1748 if (!tail)
1749 return false;
1750
1751 status = IEEE80211_SKB_RXCB(tail);
1752 if (status->flag & RX_FLAG_AMSDU_MORE)
1753 return false;
1754
1755 return true;
1756}
1757
Kalle Valo520eb822008-12-18 23:35:27 +02001758void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1759void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1760void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001761void ieee80211_send_nullfunc(struct ieee80211_local *local,
1762 struct ieee80211_sub_if_data *sdata,
1763 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001764void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1765 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001766void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001767 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001768
Kalle Valoce7c9112008-12-18 23:35:20 +02001769void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001770 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001771 enum queue_stop_reason reason,
1772 bool refcounted);
Luciano Coelho26da23b2014-06-13 16:30:06 +03001773void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1774 struct ieee80211_sub_if_data *sdata,
1775 enum queue_stop_reason reason);
1776void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1777 struct ieee80211_sub_if_data *sdata,
1778 enum queue_stop_reason reason);
Kalle Valoce7c9112008-12-18 23:35:20 +02001779void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001780 unsigned long queues,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001781 enum queue_stop_reason reason,
1782 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001783void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001784 enum queue_stop_reason reason,
1785 bool refcounted);
Johannes Berg96f5e662009-02-12 00:51:53 +01001786void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
Luciano Coelhocca07b02014-06-13 16:30:05 +03001787 enum queue_stop_reason reason,
1788 bool refcounted);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001789void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001790void ieee80211_add_pending_skb(struct ieee80211_local *local,
1791 struct sk_buff *skb);
Johannes Berge3685e02014-02-20 11:19:58 +01001792void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1793 struct sk_buff_head *skbs);
Johannes Berg39ecc012013-02-13 12:11:00 +01001794void ieee80211_flush_queues(struct ieee80211_local *local,
1795 struct ieee80211_sub_if_data *sdata);
Kalle Valoce7c9112008-12-18 23:35:20 +02001796
Johannes Berg46900292009-02-15 12:44:28 +01001797void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001798 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001799 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001800 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1801 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001802void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1803 const u8 *bssid, u16 stype, u16 reason,
1804 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001805int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
David Spinadelc56ef672014-02-05 15:21:13 +02001806 size_t buffer_len,
1807 struct ieee80211_scan_ies *ie_desc,
1808 const u8 *ie, size_t ie_len,
1809 u8 bands_used, u32 *rate_masks,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001810 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001811struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001812 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001813 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001814 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001815 const u8 *ie, size_t ie_len,
1816 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001817void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001818 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001819 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001820 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001821 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001822
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001823u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01001824 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001825 enum ieee80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001826int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1827 enum ieee80211_smps_mode smps_mode);
1828int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1829 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001830void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02001831void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001832
Johannes Berg8e664fb2009-12-23 13:15:38 +01001833size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1834 const u8 *ids, int n_ids, size_t offset);
1835size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001836u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001837 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001838u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001839 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001840 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001841u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1842 u32 cap);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001843int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1844 const struct ieee80211_supported_band *sband,
1845 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001846int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001847 struct sk_buff *skb, bool need_basic,
1848 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001849int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001850 struct sk_buff *skb, bool need_basic,
1851 enum ieee80211_band band);
Arik Nemtsov40b861a2014-07-17 17:14:23 +03001852u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001853
Johannes Bergf444de02010-05-05 15:25:02 +02001854/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001855void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001856 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001857 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001858u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02001859
Michal Kaziord01a1e62012-06-26 14:37:16 +02001860int __must_check
1861ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001862 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001863 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001864int __must_check
Luciano Coelho11335a52013-10-30 13:09:39 +02001865ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
1866 const struct cfg80211_chan_def *chandef,
Michal Kazior09332482014-04-09 15:29:25 +02001867 enum ieee80211_chanctx_mode mode,
1868 bool radar_required);
Luciano Coelho11335a52013-10-30 13:09:39 +02001869int __must_check
Michal Kazior5bcae312014-06-25 12:35:06 +02001870ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
Luciano Coelho11335a52013-10-30 13:09:39 +02001871int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
Michal Kazior5bcae312014-06-25 12:35:06 +02001872int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local);
Luciano Coelho11335a52013-10-30 13:09:39 +02001873
1874int __must_check
Johannes Berg2c9b7352013-02-07 21:37:29 +01001875ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1876 const struct cfg80211_chan_def *chandef,
1877 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001878void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001879void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001880void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1881 bool clear);
Michal Kaziorc0166da2014-04-09 15:29:33 +02001882int ieee80211_chanctx_refcount(struct ieee80211_local *local,
1883 struct ieee80211_chanctx *ctx);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001884
Johannes Berg04ecd252012-09-11 14:34:12 +02001885void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1886 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02001887void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
1888 struct ieee80211_chanctx *ctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001889
1890void ieee80211_dfs_cac_timer(unsigned long data);
1891void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1892void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1893void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07001894int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
1895 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02001896
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001897bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
1898bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
1899const struct ieee80211_cipher_scheme *
1900ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
1901 enum nl80211_iftype iftype);
1902int ieee80211_cs_headroom(struct ieee80211_local *local,
1903 struct cfg80211_crypto_settings *crypto,
1904 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08001905void ieee80211_recalc_dtim(struct ieee80211_local *local,
1906 struct ieee80211_sub_if_data *sdata);
Luciano Coelho73de86a2014-02-13 11:31:59 +02001907int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
1908 const struct cfg80211_chan_def *chandef,
1909 enum ieee80211_chanctx_mode chanmode,
1910 u8 radar_detect);
Michal Kazior6fa001b2014-04-09 15:29:23 +02001911int ieee80211_max_num_channels(struct ieee80211_local *local);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001912
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001913/* TDLS */
1914int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02001915 const u8 *peer, u8 action_code, u8 dialog_token,
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001916 u16 status_code, u32 peer_capability,
Arik Nemtsov31fa97c2014-06-11 17:18:21 +03001917 bool initiator, const u8 *extra_ies,
1918 size_t extra_ies_len);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001919int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02001920 const u8 *peer, enum nl80211_tdls_operation oper);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001921
1922
Johannes Bergb7ffbd72014-06-04 17:31:56 +02001923extern const struct ethtool_ops ieee80211_ethtool_ops;
1924
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001925#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001926#define debug_noinline noinline
1927#else
1928#define debug_noinline
1929#endif
1930
Jiri Bencf0706e82007-05-05 11:45:53 -07001931#endif /* IEEE80211_I_H */
Arik Nemtsov17e6a592014-06-11 17:18:20 +03001932void ieee80211_tdls_peer_del_work(struct work_struct *wk);