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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
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100232struct beacon_data {
233 u8 *head, *tail;
234 int head_len, tail_len;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800235 struct ieee80211_meshconf_ie *meshconf;
Johannes Berg88600202012-02-13 15:17:18 +0100236 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100237};
238
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300239struct probe_resp {
240 struct rcu_head rcu_head;
241 int len;
242 u8 data[0];
243};
244
Marco Porschd012a602012-10-10 12:39:50 -0700245struct ps_data {
246 /* yes, this looks ugly, but guarantees that we can later use
247 * bitmap_empty :)
248 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Joe Perches5fe2bb82013-12-18 16:52:17 -0800249 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
250 __aligned(__alignof__(unsigned long));
Marco Porschd012a602012-10-10 12:39:50 -0700251 struct sk_buff_head bc_buf;
252 atomic_t num_sta_ps; /* number of stations in PS mode */
253 int dtim_count;
254 bool dtim_bc_mc;
255};
256
Jiri Bencf0706e82007-05-05 11:45:53 -0700257struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200258 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300259 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700260
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200261 /* to be used after channel switch. */
262 struct cfg80211_beacon_data *next_beacon;
Michal Kazior4e141da2014-03-05 13:14:08 +0100263 struct list_head vlans; /* write-protected with RTNL and local->mtx */
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400264
Marco Porschd012a602012-10-10 12:39:50 -0700265 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200266 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300267 enum ieee80211_smps_mode req_smps, /* requested smps mode */
268 driver_smps_mode; /* smps mode request */
269
270 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700271};
272
273struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700274 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100275 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700276};
277
278struct ieee80211_if_vlan {
Michal Kazior4e141da2014-03-05 13:14:08 +0100279 struct list_head list; /* write-protected with RTNL and local->mtx */
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100280
281 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200282 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700283};
284
Luis Carlos Coboee385852008-02-23 15:17:11 +0100285struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700286 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
287 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
288 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100289 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
290 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700291 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100292};
293
294#define PREQ_Q_F_START 0x1
295#define PREQ_Q_F_REFRESH 0x2
296struct mesh_preq_queue {
297 struct list_head list;
298 u8 dst[ETH_ALEN];
299 u8 flags;
300};
301
Johannes Berg2eb278e2012-06-05 14:28:42 +0200302#if HZ/100 == 0
303#define IEEE80211_ROC_MIN_LEFT 1
304#else
305#define IEEE80211_ROC_MIN_LEFT (HZ/100)
306#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200307
Johannes Berg2eb278e2012-06-05 14:28:42 +0200308struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200309 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200310 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100311
Johannes Berg2eb278e2012-06-05 14:28:42 +0200312 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100313
314 struct ieee80211_sub_if_data *sdata;
315
Johannes Bergf679f652009-12-23 13:15:34 +0100316 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100317
Johannes Berg2eb278e2012-06-05 14:28:42 +0200318 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100319 bool to_be_freed;
Johannes Bergb4b177a2014-05-14 15:34:41 +0200320 bool on_channel;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200321
Johannes Berg2eb278e2012-06-05 14:28:42 +0200322 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100323
Johannes Berg2eb278e2012-06-05 14:28:42 +0200324 u32 duration, req_duration;
325 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200326 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200327 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200328};
329
Johannes Berg46900292009-02-15 12:44:28 +0100330/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200331enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200332 IEEE80211_STA_CONNECTION_POLL = BIT(1),
333 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100334 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200335 IEEE80211_STA_CSA_RECEIVED = BIT(5),
336 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200337 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530338 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700339 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200340 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000341 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100342 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
343 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Berg095d81c2013-10-15 12:25:07 +0200344 IEEE80211_STA_DISABLE_WMM = BIT(14),
Johannes Bergab1faea2009-07-01 21:41:17 +0200345};
346
Johannes Berg66e67e42012-01-20 13:55:27 +0100347struct ieee80211_mgd_auth_data {
348 struct cfg80211_bss *bss;
349 unsigned long timeout;
350 int tries;
351 u16 algorithm, expected_transaction;
352
353 u8 key[WLAN_KEY_LEN_WEP104];
354 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100355 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100356 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100357
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300358 u16 sae_trans, sae_status;
359 size_t data_len;
360 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100361};
362
363struct ieee80211_mgd_assoc_data {
364 struct cfg80211_bss *bss;
365 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100366
367 unsigned long timeout;
368 int tries;
369
370 u16 capability;
371 u8 prev_bssid[ETH_ALEN];
372 u8 ssid[IEEE80211_MAX_SSID_LEN];
373 u8 ssid_len;
374 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100375 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300376 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100377 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100378 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100379
Johannes Berg9dde6422012-05-16 23:43:19 +0200380 u8 ap_ht_param;
381
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100382 struct ieee80211_vht_cap ap_vht_cap;
383
Johannes Berg66e67e42012-01-20 13:55:27 +0100384 size_t ie_len;
385 u8 ie[];
386};
387
Johannes Berg46900292009-02-15 12:44:28 +0100388struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100389 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200390 struct timer_list conn_mon_timer;
391 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530392 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200393 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530394 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200395 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200396 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100397
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100398 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200399 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300400 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100401 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100402 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200403
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100404 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100405 struct ieee80211_mgd_auth_data *auth_data;
406 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100407
Johannes Berg77fdaa12009-07-07 03:45:17 +0200408 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100409
Jiri Bencf0706e82007-05-05 11:45:53 -0700410 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700411
Johannes Berg965beda2009-04-16 13:17:24 +0200412 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200413 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300414 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200415 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100416 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200417 driver_smps_mode; /* smps mode request */
418
419 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200420
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400421 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700422
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300423 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200424 u32 beacon_crc;
425
Johannes Berg1672c0e32013-01-29 15:02:27 +0100426 bool status_acked;
427 bool status_received;
428 __le16 status_fc;
429
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200430 enum {
431 IEEE80211_MFP_DISABLED,
432 IEEE80211_MFP_OPTIONAL,
433 IEEE80211_MFP_REQUIRED
434 } mfp; /* management frame protection */
435
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200436 /*
437 * Bitmask of enabled u-apsd queues,
438 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
439 * to take effect.
440 */
441 unsigned int uapsd_queues;
442
443 /*
444 * Maximum number of buffered frames AP can deliver during a
445 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
446 * Needs a new association to take effect.
447 */
448 unsigned int uapsd_max_sp_len;
449
Jiri Bencf0706e82007-05-05 11:45:53 -0700450 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100451
452 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700453
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100454 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100455
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700456 /* Signal strength from the last Beacon frame in the current BSS. */
457 int last_beacon_signal;
458
459 /*
460 * Weighted average of the signal strength from Beacon frames in the
461 * current BSS. This is in units of 1/16 of the signal unit to maintain
462 * accuracy and to speed up calculations, i.e., the value need to be
463 * divided by 16 to get the actual value.
464 */
465 int ave_beacon_signal;
466
467 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300468 * Number of Beacon frames used in ave_beacon_signal. This can be used
469 * to avoid generating less reliable cqm events that would be based
470 * only on couple of received frames.
471 */
472 unsigned int count_beacon_signal;
473
474 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700475 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
476 * that triggered a cqm event. 0 indicates that no event has been
477 * generated for the current association.
478 */
479 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700480
481 /*
482 * State variables for keeping track of RSSI of the AP currently
483 * connected to and informing driver when RSSI has gone
484 * below/above a certain threshold.
485 */
486 int rssi_min_thold, rssi_max_thold;
487 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800488
489 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
490 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100491 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
492 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700493};
494
Johannes Berg46900292009-02-15 12:44:28 +0100495struct ieee80211_if_ibss {
496 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200497 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100498
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200499 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200500
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300501 u32 basic_rates;
502
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200503 bool fixed_bssid;
504 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200505 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100506
Antonio Quartulli267335d2012-01-31 20:25:47 +0100507 bool control_port;
Simon Wunderlich8e8d3472013-10-07 18:41:06 +0200508 bool userspace_handles_dfs;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100509
Felix Fietkau4d196e42012-03-01 11:23:37 +0100510 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200511 u8 ssid[IEEE80211_MAX_SSID_LEN];
512 u8 ssid_len, ie_len;
513 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200514 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100515
516 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200517 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100518 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100519
Simon Wunderlich822854b2013-06-28 10:39:59 +0200520 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
521 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
522
Johannes Berg8bf11d82011-12-15 11:17:37 +0100523 spinlock_t incomplete_lock;
524 struct list_head incomplete_stations;
525
Johannes Berg46900292009-02-15 12:44:28 +0100526 enum {
527 IEEE80211_IBSS_MLME_SEARCH,
528 IEEE80211_IBSS_MLME_JOINED,
529 } state;
530};
531
Javier Cardonadbf498f2012-03-31 11:31:32 -0700532/**
533 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
534 *
535 * these declarations define the interface, which enables
536 * vendor-specific mesh synchronization
537 *
538 */
539struct ieee802_11_elems;
540struct ieee80211_mesh_sync_ops {
541 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
542 u16 stype,
543 struct ieee80211_mgmt *mgmt,
544 struct ieee802_11_elems *elems,
545 struct ieee80211_rx_status *rx_status);
Thomas Pedersen43552be2013-12-15 13:14:16 -0800546
547 /* should be called with beacon_data under RCU read lock */
548 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
549 struct beacon_data *beacon);
Javier Cardonadbf498f2012-03-31 11:31:32 -0700550 /* add other framework functions here */
551};
552
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700553struct mesh_csa_settings {
554 struct rcu_head rcu_head;
555 struct cfg80211_csa_settings settings;
556};
557
Johannes Berg472dbc42008-09-11 00:01:49 +0200558struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200559 struct timer_list housekeeping_timer;
560 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000561 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200562
Javier Cardona18889232009-08-10 12:15:52 -0700563 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700564 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200565
566 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
567 size_t mesh_id_len;
568 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000569 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200570 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000571 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200572 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000573 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700574 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000575 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700576 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000577 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000578 /* Local mesh Sequence Number */
579 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200580 /* Last used PREQ ID */
581 u32 preq_id;
582 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000583 /* Timestamp of last SN update */
584 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800585 /* Time when it's ok to send next PERR */
586 unsigned long next_perr;
587 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200588 unsigned long last_preq;
589 struct mesh_rmc *rmc;
590 spinlock_t mesh_preq_queue_lock;
591 struct mesh_preq_queue preq_queue;
592 int preq_queue_len;
593 struct mesh_stats mshstats;
594 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700595 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200596 u32 mesh_seqnum;
597 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700598 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800599 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700600 const u8 *ie;
601 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700602 enum {
603 IEEE80211_MESH_SEC_NONE = 0x0,
604 IEEE80211_MESH_SEC_AUTHED = 0x1,
605 IEEE80211_MESH_SEC_SECURED = 0x2,
606 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800607 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700608 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200609 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700610 s64 sync_offset_clockdrift_max;
611 spinlock_t sync_offset_lock;
612 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100613 /* mesh power save */
614 enum nl80211_mesh_power_mode nonpeer_pm;
615 int ps_peers_light_sleep;
616 int ps_peers_deep_sleep;
617 struct ps_data ps;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700618 /* Channel Switching Support */
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700619 struct mesh_csa_settings __rcu *csa;
Luciano Coelho0cb4d4d2014-01-13 19:42:58 +0200620 enum {
621 IEEE80211_MESH_CSA_ROLE_NONE,
622 IEEE80211_MESH_CSA_ROLE_INIT,
623 IEEE80211_MESH_CSA_ROLE_REPEATER,
624 } csa_role;
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -0700625 u8 chsw_ttl;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -0700626 u16 pre_value;
Thomas Pedersen43552be2013-12-15 13:14:16 -0800627
628 /* offset from skb->data while building IE */
629 int meshconf_offset;
Johannes Berg472dbc42008-09-11 00:01:49 +0200630};
Johannes Berg902acc72008-02-23 15:17:19 +0100631
632#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200633#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
634 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100635#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200636#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100637 do { } while (0)
638#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700639
Johannes Berg213cd112008-09-11 00:01:54 +0200640/**
641 * enum ieee80211_sub_if_data_flags - virtual interface flags
642 *
643 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
644 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200645 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
646 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
647 * associated stations and deliver multicast frames both
648 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200649 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100650 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200651 */
652enum ieee80211_sub_if_data_flags {
653 IEEE80211_SDATA_ALLMULTI = BIT(0),
654 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100655 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
656 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200657 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100658 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200659};
660
Johannes Berg34d4bc42010-08-27 12:35:58 +0200661/**
662 * enum ieee80211_sdata_state_bits - virtual interface state bits
663 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
664 * mirrors netif_running() but is separate for interface type
665 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200666 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
667 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100668 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
669 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200670 */
671enum ieee80211_sdata_state_bits {
672 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200673 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100674 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200675};
676
Michal Kaziord01a1e62012-06-26 14:37:16 +0200677/**
678 * enum ieee80211_chanctx_mode - channel context configuration mode
679 *
680 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
681 * multiple interfaces
682 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
683 * only by a single interface. This can be used for example for
684 * non-fixed channel IBSS.
685 */
686enum ieee80211_chanctx_mode {
687 IEEE80211_CHANCTX_SHARED,
688 IEEE80211_CHANCTX_EXCLUSIVE
689};
690
691struct ieee80211_chanctx {
692 struct list_head list;
693 struct rcu_head rcu_head;
694
Michal Kazior484298a2014-04-09 15:29:26 +0200695 struct list_head assigned_vifs;
Michal Kaziore3afb922014-04-09 15:29:27 +0200696 struct list_head reserved_vifs;
Michal Kazior484298a2014-04-09 15:29:26 +0200697
Michal Kaziord01a1e62012-06-26 14:37:16 +0200698 enum ieee80211_chanctx_mode mode;
Johannes Berg8a61af62012-12-13 17:42:30 +0100699 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200700
701 struct ieee80211_chanctx_conf conf;
702};
703
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800704struct mac80211_qos_map {
705 struct cfg80211_qos_map qos_map;
706 struct rcu_head rcu_head;
707};
708
Jiri Bencf0706e82007-05-05 11:45:53 -0700709struct ieee80211_sub_if_data {
710 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700711
712 struct wireless_dev wdev;
713
Johannes Berg11a843b2007-08-28 17:01:55 -0400714 /* keys */
715 struct list_head key_list;
716
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530717 /* count for keys needing tailroom space allocation */
718 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100719 int crypto_tx_tailroom_pending_dec;
720 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530721
Jiri Bencf0706e82007-05-05 11:45:53 -0700722 struct net_device *dev;
723 struct ieee80211_local *local;
724
Jiri Slaby13262ff2007-08-28 17:01:54 -0400725 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200726
Johannes Berg34d4bc42010-08-27 12:35:58 +0200727 unsigned long state;
728
Jiri Bencf0706e82007-05-05 11:45:53 -0700729 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700730
Johannes Berg47846c92009-11-25 17:46:19 +0100731 char name[IFNAMSIZ];
732
Jiri Bencf0706e82007-05-05 11:45:53 -0700733 /* Fragment table for host-based reassembly */
734 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
735 unsigned int fragment_next;
736
Simon Wunderlichb53be792011-11-18 14:20:44 +0100737 /* TID bitmap for NoAck policy */
738 u16 noack_map;
739
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300740 /* bit field of ACM bits (BIT(802.1D tag)) */
741 u8 wmm_acm;
742
Johannes Berg40b275b2011-05-13 14:15:49 +0200743 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
744 struct ieee80211_key __rcu *default_unicast_key;
745 struct ieee80211_key __rcu *default_multicast_key;
746 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700747
Johannes Berg94778282008-10-10 13:21:59 +0200748 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300749 __be16 control_port_protocol;
750 bool control_port_no_encrypt;
Max Stepanov2475b1cc2013-03-24 14:23:27 +0200751 int encrypt_headroom;
Johannes Berg94778282008-10-10 13:21:59 +0200752
Johannes Berg54bcbc62012-03-28 11:04:25 +0200753 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Kyeyoon Park32db6b52013-12-16 23:04:43 -0800754 struct mac80211_qos_map __rcu *qos_map;
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300755
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200756 struct work_struct csa_finalize_work;
Andrei Otcheretianski0d06d9b2014-05-09 14:11:47 +0300757 u16 csa_counter_offset_beacon[IEEE80211_MAX_CSA_COUNTERS_NUM];
758 u16 csa_counter_offset_presp[IEEE80211_MAX_CSA_COUNTERS_NUM];
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200759 bool csa_radar_required;
Michal Kazior59af6922014-04-09 15:10:59 +0200760 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
Luciano Coelho33787fc2013-11-11 20:34:54 +0200761 struct cfg80211_chan_def csa_chandef;
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200762
Michal Kazior484298a2014-04-09 15:29:26 +0200763 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
Michal Kaziore3afb922014-04-09 15:29:27 +0200764 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
Michal Kazior484298a2014-04-09 15:29:26 +0200765
Luciano Coelho11335a52013-10-30 13:09:39 +0200766 /* context reservation -- protected with chanctx_mtx */
767 struct ieee80211_chanctx *reserved_chanctx;
768 struct cfg80211_chan_def reserved_chandef;
Michal Kazior09332482014-04-09 15:29:25 +0200769 bool reserved_radar_required;
Andrei Otcheretianski387910c2014-05-09 14:11:45 +0300770 u8 csa_current_counter;
Luciano Coelho11335a52013-10-30 13:09:39 +0200771
Johannes Berg04ecd252012-09-11 14:34:12 +0200772 /* used to reconfigure hardware SM PS */
773 struct work_struct recalc_smps;
774
Johannes Berg64592c82010-06-10 10:21:31 +0200775 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200776 struct sk_buff_head skb_queue;
777
Johannes Berg04ecd252012-09-11 14:34:12 +0200778 u8 needed_rx_chains;
779 enum ieee80211_smps_mode smps_mode;
780
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200781 int user_power_level; /* in dBm */
782 int ap_power_level; /* in dBm */
783
Simon Wunderlich164eb022013-02-08 18:16:20 +0100784 bool radar_required;
785 struct delayed_work dfs_cac_timer_work;
786
Johannes Berg3e122be2008-07-09 14:40:34 +0200787 /*
788 * AP this belongs to: self in AP mode and
789 * corresponding AP in VLAN mode, NULL for
790 * all others (might be needed later in IBSS)
791 */
792 struct ieee80211_if_ap *bss;
793
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200794 /* bitmap of allowed (non-MCS) rate indexes for rate control */
795 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200796
797 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100798 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700799
800 union {
801 struct ieee80211_if_ap ap;
802 struct ieee80211_if_wds wds;
803 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100804 struct ieee80211_if_managed mgd;
805 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200806 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100807 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700808 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700809
810#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300811 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700812 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100813 struct dentry *default_unicast_key;
814 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200815 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100816 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700817#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100818
Johannes Berg32bfd352007-12-19 01:31:26 +0100819 /* must be last, dynamically sized area in this! */
820 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700821};
822
Johannes Berg32bfd352007-12-19 01:31:26 +0100823static inline
824struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
825{
826 return container_of(p, struct ieee80211_sub_if_data, vif);
827}
828
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200829static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
830 __acquires(&sdata->wdev.mtx)
831{
832 mutex_lock(&sdata->wdev.mtx);
833 __acquire(&sdata->wdev.mtx);
834}
835
836static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
837 __releases(&sdata->wdev.mtx)
838{
839 mutex_unlock(&sdata->wdev.mtx);
840 __release(&sdata->wdev.mtx);
841}
842
Simon Wunderlich7ca133b2013-11-21 18:19:50 +0100843#define sdata_dereference(p, sdata) \
844 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
845
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200846static inline void
847sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
848{
849 lockdep_assert_held(&sdata->wdev.mtx);
850}
851
Johannes Berg55de9082012-07-26 17:24:39 +0200852static inline enum ieee80211_band
853ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
854{
855 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
856 struct ieee80211_chanctx_conf *chanctx_conf;
857
858 rcu_read_lock();
859 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
860 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100861 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200862 rcu_read_unlock();
863
864 return band;
865}
866
Simon Wunderlich438b61b2013-07-08 16:55:51 +0200867static inline int
868ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
869{
870 switch (chandef->width) {
871 case NL80211_CHAN_WIDTH_5:
872 return 2;
873 case NL80211_CHAN_WIDTH_10:
874 return 1;
875 default:
876 return 0;
877 }
878}
879
880static inline int
881ieee80211_vif_get_shift(struct ieee80211_vif *vif)
882{
883 struct ieee80211_chanctx_conf *chanctx_conf;
884 int shift = 0;
885
886 rcu_read_lock();
887 chanctx_conf = rcu_dereference(vif->chanctx_conf);
888 if (chanctx_conf)
889 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
890 rcu_read_unlock();
891
892 return shift;
893}
894
Johannes Bergc1475ca2010-06-10 10:21:37 +0200895enum sdata_queue_type {
896 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
897 IEEE80211_SDATA_QUEUE_AGG_START = 1,
898 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
899};
900
Jiri Bencf0706e82007-05-05 11:45:53 -0700901enum {
902 IEEE80211_RX_MSG = 1,
903 IEEE80211_TX_STATUS_MSG = 2,
904};
905
Kalle Valoce7c9112008-12-18 23:35:20 +0200906enum queue_stop_reason {
907 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200908 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100909 IEEE80211_QUEUE_STOP_REASON_CSA,
910 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100911 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200912 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600913 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +0100914 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Kalle Valoce7c9112008-12-18 23:35:20 +0200915};
916
Luciano Coelho65a65382010-12-21 16:02:17 +0200917#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100918struct tpt_led_trigger {
919 struct led_trigger trig;
920 char name[32];
921 const struct ieee80211_tpt_blink *blink_table;
922 unsigned int blink_table_len;
923 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100924 unsigned long prev_traffic;
925 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100926 unsigned int active, want;
927 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100928};
Luciano Coelho65a65382010-12-21 16:02:17 +0200929#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100930
Matti Gottliebad38bfc2013-11-18 19:06:45 +0200931/*
932 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges
933 *
934 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a
935 * certain latency range (in Milliseconds). Each station that uses these
936 * ranges will have bins to count the amount of frames received in that range.
937 * The user can configure the ranges via debugfs.
938 * If ranges is NULL then Tx latency statistics bins are disabled for all
939 * stations.
940 *
941 * @n_ranges: number of ranges that are taken in account
942 * @ranges: the ranges that the user requested or NULL if disabled.
943 */
944struct ieee80211_tx_latency_bin_ranges {
945 int n_ranges;
946 u32 ranges[];
947};
948
Helmut Schaa142b9f52009-07-23 13:18:01 +0200949/**
950 * mac80211 scan flags - currently active scan mode
951 *
952 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
953 * well be on the operating channel
954 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
955 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700956 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
957 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200958 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
959 * that the scan completed.
960 * @SCAN_ABORTED: Set for our scan work function when the driver reported
961 * a scan complete for an aborted scan.
Emmanuel Grumbacha7540552013-09-16 11:12:07 +0300962 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
963 * cancelled.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200964 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200965enum {
966 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200967 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700968 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200969 SCAN_COMPLETED,
970 SCAN_ABORTED,
Emmanuel Grumbacha7540552013-09-16 11:12:07 +0300971 SCAN_HW_CANCELLED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200972};
973
974/**
975 * enum mac80211_scan_state - scan state machine states
976 *
977 * @SCAN_DECISION: Main entry point to the scan state machine, this state
978 * determines if we should keep on scanning or switch back to the
979 * operating channel
980 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
981 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100982 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
983 * send out data
984 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -0700985 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200986 */
987enum mac80211_scan_state {
988 SCAN_DECISION,
989 SCAN_SET_CHANNEL,
990 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100991 SCAN_SUSPEND,
992 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -0700993 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200994};
995
Jiri Bencf0706e82007-05-05 11:45:53 -0700996struct ieee80211_local {
997 /* embed the driver visible part.
998 * don't cast (use the static inlines below), but we keep
999 * it first anyway so they become a no-op */
1000 struct ieee80211_hw hw;
1001
1002 const struct ieee80211_ops *ops;
1003
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001004 /*
1005 * private workqueue to mac80211. mac80211 makes this accessible
1006 * via ieee80211_queue_work()
1007 */
1008 struct workqueue_struct *workqueue;
1009
Johannes Berge4e72fb2009-03-23 17:28:42 +01001010 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +01001011 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +02001012 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +01001013
Jiri Bencf0706e82007-05-05 11:45:53 -07001014 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +01001015 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +01001016 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +02001017 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1018 fif_probe_req;
1019 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -04001020 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001021
Johannes Berg3ffc2a92010-08-27 14:26:52 +03001022 bool wiphy_ciphers_allocated;
1023
Johannes Bergfe57d9f2012-07-26 14:55:08 +02001024 bool use_chanctx;
1025
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001026 /* protects the aggregated multicast list and filter calls */
1027 spinlock_t filter_lock;
1028
Johannes Berg3ac64be2009-08-17 16:16:53 +02001029 /* used for uploading changed mc list */
1030 struct work_struct reconfig_filter;
1031
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001032 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001033 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +02001034
Johannes Bergd0709a62008-02-25 16:27:46 +01001035 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +02001036
1037 /*
1038 * suspended is true if we finished all the suspend _and_ we have
1039 * not yet come up from resume. This is to be used by mac80211
1040 * to ensure driver sanity during suspend and mac80211's own
1041 * sanity. It can eventually be used for WoW as well.
1042 */
1043 bool suspended;
1044
1045 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +01001046 * Resuming is true while suspended, but when we're reprogramming the
1047 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1048 * again even though some other parts of the stack are still suspended
1049 * and we still drop received frames to avoid waking the stack.
1050 */
1051 bool resuming;
1052
1053 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +02001054 * quiescing is true during the suspend process _only_ to
1055 * ease timer cancelling etc.
1056 */
1057 bool quiescing;
1058
Johannes Bergea77f122009-08-21 14:44:45 +02001059 /* device is started */
1060 bool started;
1061
Arik Nemtsov04800ad2012-06-06 11:25:02 +03001062 /* device is during a HW reconfig */
1063 bool in_reconfig;
1064
Johannes Bergeecc4802011-05-04 15:37:29 +02001065 /* wowlan is enabled -- don't reconfig on resume */
1066 bool wowlan;
1067
Simon Wunderlich164eb022013-02-08 18:16:20 +01001068 /* DFS/radar detection is enabled */
1069 bool radar_detect_enabled;
1070 struct work_struct radar_detected_work;
1071
Johannes Berg04ecd252012-09-11 14:34:12 +02001072 /* number of RX chains the hardware has */
1073 u8 rx_chains;
1074
Johannes Bergb306f452007-07-10 19:32:08 +02001075 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001076
Jiri Bencf0706e82007-05-05 11:45:53 -07001077 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1078 * added to skb_queue will be processed, but frames in
1079 * skb_queue_unreliable may be dropped if the total length of these
1080 * queues increases over the limit. */
1081#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1082 struct tasklet_struct tasklet;
1083 struct sk_buff_head skb_queue;
1084 struct sk_buff_head skb_queue_unreliable;
1085
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001086 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001087
Johannes Bergd0709a62008-02-25 16:27:46 +01001088 /* Station data */
1089 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001090 * The mutex only protects the list, hash table and
1091 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001092 */
Johannes Berg34e89502010-02-03 13:59:58 +01001093 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001094 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001095 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001096 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +02001097 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -07001098 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001099 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001100
Matti Gottliebad38bfc2013-11-18 19:06:45 +02001101 /*
1102 * Tx latency statistics parameters for all stations.
1103 * Can enable via debugfs (NULL when disabled).
1104 */
1105 struct ieee80211_tx_latency_bin_ranges __rcu *tx_latency;
1106
Johannes Berg2a577d92009-03-23 17:28:37 +01001107 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001108 struct tasklet_struct tx_pending_tasklet;
1109
Johannes Berga6a67db2010-06-10 10:21:41 +02001110 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001111
Johannes Berg53918992007-09-26 15:19:47 +02001112 /* number of interfaces with corresponding IFF_ flags */
1113 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -07001114
1115 struct rate_control_ref *rate_ctrl;
1116
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001117 struct crypto_cipher *wep_tx_tfm;
1118 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001119 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001120
Johannes Bergc771c9d2009-01-23 22:54:03 +01001121 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001122 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001123 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001124
Johannes Bergb16bd152008-04-11 21:40:35 +02001125 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001126 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001127 * key pointers (write access, they're RCU.)
1128 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001129 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001130
Johannes Berga1699b72010-07-30 16:46:07 +02001131 /* mutex for scan and work locking */
1132 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001133
Johannes Bergc2b13452008-09-11 00:01:55 +02001134 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001135 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001136 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001137 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001138 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001139 struct cfg80211_chan_def scan_chandef;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001140 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001141 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001142 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001143 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001144
Luciano Coelho85a99942011-05-12 16:28:29 +03001145 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001146 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
David Spinadeld43c6b62013-12-08 21:48:57 +02001147 struct cfg80211_sched_scan_request *sched_scan_req;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001148
Helmut Schaadf13cce2010-02-24 14:19:21 +01001149 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001150 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001151 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001152 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001153 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001154 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001155
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001156 /* Temporary remain-on-channel for off-channel operations */
1157 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001158
Michal Kaziord01a1e62012-06-26 14:37:16 +02001159 /* channel contexts */
1160 struct list_head chanctx_list;
1161 struct mutex chanctx_mtx;
1162
Jiri Bencf0706e82007-05-05 11:45:53 -07001163 /* SNMP counters */
1164 /* dot11CountersTable */
1165 u32 dot11TransmittedFragmentCount;
1166 u32 dot11MulticastTransmittedFrameCount;
1167 u32 dot11FailedCount;
1168 u32 dot11RetryCount;
1169 u32 dot11MultipleRetryCount;
1170 u32 dot11FrameDuplicateCount;
1171 u32 dot11ReceivedFragmentCount;
1172 u32 dot11MulticastReceivedFrameCount;
1173 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001174
1175#ifdef CONFIG_MAC80211_LEDS
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001176 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001177 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001178 char tx_led_name[32], rx_led_name[32],
1179 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001180#endif
1181
Jiri Bencf0706e82007-05-05 11:45:53 -07001182#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1183 /* TX/RX handler statistics */
1184 unsigned int tx_handlers_drop;
1185 unsigned int tx_handlers_queued;
1186 unsigned int tx_handlers_drop_unencrypted;
1187 unsigned int tx_handlers_drop_fragment;
1188 unsigned int tx_handlers_drop_wep;
1189 unsigned int tx_handlers_drop_not_assoc;
1190 unsigned int tx_handlers_drop_unauth_port;
1191 unsigned int rx_handlers_drop;
1192 unsigned int rx_handlers_queued;
1193 unsigned int rx_handlers_drop_nullfunc;
1194 unsigned int rx_handlers_drop_defrag;
1195 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001196 unsigned int tx_expand_skb_head;
1197 unsigned int tx_expand_skb_head_cloned;
1198 unsigned int rx_expand_skb_head;
1199 unsigned int rx_expand_skb_head2;
1200 unsigned int rx_handlers_fragments;
1201 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001202#define I802_DEBUG_INC(c) (c)++
1203#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1204#define I802_DEBUG_INC(c) do { } while (0)
1205#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1206
1207
Jiri Bencf0706e82007-05-05 11:45:53 -07001208 int total_ps_buffered; /* total number of all buffered unicast and
1209 * multicast packets for power saving stations
1210 */
Kalle Valo520eb822008-12-18 23:35:27 +02001211
Kalle Valo572e0012009-02-10 17:09:31 +02001212 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001213 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001214 /*
1215 * PS can only be enabled when we have exactly one managed
1216 * interface (and monitors) in PS, this then points there.
1217 */
1218 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001219 struct work_struct dynamic_ps_enable_work;
1220 struct work_struct dynamic_ps_disable_work;
1221 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001222 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001223 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001224 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001225
Juuso Oikarinenff616382010-06-09 09:51:52 +03001226 /*
1227 * The dynamic ps timeout configured from user space via WEXT -
1228 * this will override whatever chosen by mac80211 internally.
1229 */
1230 int dynamic_ps_forced_timeout;
1231
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001232 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001233
Johannes Berg0f782312009-12-01 13:37:02 +01001234 enum ieee80211_smps_mode smps_mode;
1235
Johannes Bergf2753dd2009-04-14 10:09:24 +02001236 struct work_struct restart_work;
1237
Jiri Bence9f207f2007-05-05 11:46:38 -07001238#ifdef CONFIG_MAC80211_DEBUGFS
1239 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001240 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001241 struct dentry *keys;
1242 } debugfs;
1243#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001244
Johannes Berg2eb278e2012-06-05 14:28:42 +02001245 /*
1246 * Remain-on-channel support
1247 */
1248 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001249 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001250 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001251 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001252
Johannes Berga729cff2011-11-06 14:13:34 +01001253 struct idr ack_status_frames;
1254 spinlock_t ack_status_lock;
1255
Johannes Bergf142c6b2012-06-18 20:07:15 +02001256 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1257
Johannes Berg06d181a2014-02-04 20:51:09 +01001258 struct napi_struct *napi;
1259
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001260 /* virtual monitor interface */
1261 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001262 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001263};
1264
Johannes Berg3e122be2008-07-09 14:40:34 +02001265static inline struct ieee80211_sub_if_data *
1266IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1267{
Johannes Berg3e122be2008-07-09 14:40:34 +02001268 return netdev_priv(dev);
1269}
1270
Johannes Berg71bbc992012-06-15 15:30:18 +02001271static inline struct ieee80211_sub_if_data *
1272IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1273{
1274 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1275}
1276
Johannes Bergc1475ca2010-06-10 10:21:37 +02001277/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001278struct ieee80211_ra_tid {
1279 u8 ra[ETH_ALEN];
1280 u16 tid;
1281};
1282
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001283/* this struct holds the value parsing from channel switch IE */
1284struct ieee80211_csa_ie {
1285 struct cfg80211_chan_def chandef;
1286 u8 mode;
1287 u8 count;
1288 u8 ttl;
Chun-Yeow Yeoh3f718fd2013-11-08 15:09:43 +08001289 u16 pre_value;
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001290};
1291
Johannes Bergdd769862011-11-18 16:54:50 +01001292/* Parsed Information Elements */
1293struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001294 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001295 size_t total_len;
1296
1297 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001298 const u8 *ssid;
1299 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001300 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001301 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001302 const u8 *challenge;
1303 const u8 *rsn;
1304 const u8 *erp_info;
1305 const u8 *ext_supp_rates;
1306 const u8 *wmm_info;
1307 const u8 *wmm_param;
1308 const struct ieee80211_ht_cap *ht_cap_elem;
1309 const struct ieee80211_ht_operation *ht_operation;
1310 const struct ieee80211_vht_cap *vht_cap_elem;
1311 const struct ieee80211_vht_operation *vht_operation;
1312 const struct ieee80211_meshconf_ie *mesh_config;
1313 const u8 *mesh_id;
1314 const u8 *peering;
1315 const __le16 *awake_window;
1316 const u8 *preq;
1317 const u8 *prep;
1318 const u8 *perr;
1319 const struct ieee80211_rann_ie *rann;
1320 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001321 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001322 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001323 const u8 *country_elem;
1324 const u8 *pwr_constr_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001325 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001326 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001327 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Chun-Yeow Yeoh8f2535b2013-10-14 19:08:27 -07001328 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001329
1330 /* length of them, respectively */
1331 u8 ssid_len;
1332 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001333 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001334 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001335 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001336 u8 ext_supp_rates_len;
1337 u8 wmm_info_len;
1338 u8 wmm_param_len;
1339 u8 mesh_id_len;
1340 u8 peering_len;
1341 u8 preq_len;
1342 u8 prep_len;
1343 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001344 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001345
1346 /* whether a parse error occurred while retrieving these elements */
1347 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001348};
1349
Jiri Bencf0706e82007-05-05 11:45:53 -07001350static inline struct ieee80211_local *hw_to_local(
1351 struct ieee80211_hw *hw)
1352{
1353 return container_of(hw, struct ieee80211_local, hw);
1354}
1355
Jiri Bencf0706e82007-05-05 11:45:53 -07001356
Johannes Berg571ecf62007-07-27 15:43:22 +02001357static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1358{
Joe Perchesb203ca32012-05-08 18:56:52 +00001359 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001360 is_broadcast_ether_addr(raddr);
1361}
1362
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001363static inline bool
1364ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1365{
1366 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1367 status->flag & RX_FLAG_MACTIME_END);
1368 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1369}
Johannes Berg571ecf62007-07-27 15:43:22 +02001370
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001371u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1372 struct ieee80211_rx_status *status,
1373 unsigned int mpdu_len,
1374 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001375int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001376void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001377void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1378 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001379void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001380u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001381
Johannes Berg46900292009-02-15 12:44:28 +01001382/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001383void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001384int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1385 struct cfg80211_auth_request *req);
1386int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1387 struct cfg80211_assoc_request *req);
1388int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001389 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001390int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001391 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001392void ieee80211_send_pspoll(struct ieee80211_local *local,
1393 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001394void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001395void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001396int ieee80211_max_network_latency(struct notifier_block *nb,
1397 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001398int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001399void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1400void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1401 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001402void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001403void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001404void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001405void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1406 __le16 fc, bool acked);
Johannes Berg1a1cb742014-03-19 09:55:55 +01001407void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001408void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001409
Johannes Berg46900292009-02-15 12:44:28 +01001410/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001411void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1412void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001413void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1414 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001415int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1416 struct cfg80211_ibss_params *params);
1417int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001418void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1419void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1420 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001421int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1422 struct cfg80211_csa_settings *csa_settings);
1423int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1424void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001425
1426/* mesh code */
1427void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1428void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1429 struct sk_buff *skb);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001430int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
Luciano Coelho66e01cf2014-01-13 19:43:00 +02001431 struct cfg80211_csa_settings *csa_settings);
Chun-Yeow Yeohb8456a12013-10-17 15:55:02 -07001432int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001433
Johannes Berg9c6bd792008-09-11 00:01:52 +02001434/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001435void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001436int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1437 const u8 *ssid, u8 ssid_len,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001438 struct ieee80211_channel *chan,
1439 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001440int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001441 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001442void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001443void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001444void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001445
Johannes Berg0a51b272008-09-08 17:44:25 +02001446void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001447struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001448ieee80211_bss_info_update(struct ieee80211_local *local,
1449 struct ieee80211_rx_status *rx_status,
1450 struct ieee80211_mgmt *mgmt,
1451 size_t len,
1452 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001453 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001454void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001455 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001456
Luciano Coelho79f460c2011-05-11 17:09:36 +03001457/* scheduled scan handling */
David Spinadeld43c6b62013-12-08 21:48:57 +02001458int
1459__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1460 struct cfg80211_sched_scan_request *req);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001461int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1462 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001463int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
Johannes Bergf6837ba2014-04-30 14:19:04 +02001464void ieee80211_sched_scan_end(struct ieee80211_local *local);
Luciano Coelho85a99942011-05-12 16:28:29 +03001465void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001466
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001467/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001468void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1469void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001470void ieee80211_roc_setup(struct ieee80211_local *local);
1471void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001472void ieee80211_roc_purge(struct ieee80211_local *local,
1473 struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001474void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001475void ieee80211_sw_roc_work(struct work_struct *work);
1476void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001477
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001478/* channel switch handling */
Michal Kazior59af6922014-04-09 15:10:59 +02001479bool ieee80211_csa_needs_block_tx(struct ieee80211_local *local);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001480void ieee80211_csa_finalize_work(struct work_struct *work);
Luciano Coelho82a8e172013-12-13 21:13:50 +02001481int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1482 struct cfg80211_csa_settings *params);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001483
Johannes Berg3e122be2008-07-09 14:40:34 +02001484/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001485int ieee80211_iface_init(void);
1486void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001487int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001488 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001489 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001490int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001491 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001492void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001493void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001494u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001495void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001496void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1497 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001498int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1499void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001500int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1501void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001502
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001503bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1504void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1505
Johannes Berg9607e6b2009-12-23 13:15:31 +01001506static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1507{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001508 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001509}
1510
Johannes Berge2ebc742007-07-27 15:43:22 +02001511/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001512void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1513void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001514netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1515 struct net_device *dev);
1516netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1517 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001518void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1519 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001520
Johannes Bergde1ede72008-09-09 14:42:50 +02001521/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001522void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1523 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001524bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001525 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001526 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001527 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001528void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1529 const u8 *da, u16 tid,
1530 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001531int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1532 enum ieee80211_smps_mode smps, const u8 *da,
1533 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001534void ieee80211_request_smps_ap_work(struct work_struct *work);
1535void ieee80211_request_smps_mgd_work(struct work_struct *work);
1536bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1537 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001538
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001539void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001540 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001541void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001542 u16 initiator, u16 reason, bool stop);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001543void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1544 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001545void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1546 struct sta_info *sta,
1547 struct ieee80211_mgmt *mgmt, size_t len);
1548void ieee80211_process_addba_resp(struct ieee80211_local *local,
1549 struct sta_info *sta,
1550 struct ieee80211_mgmt *mgmt,
1551 size_t len);
1552void ieee80211_process_addba_request(struct ieee80211_local *local,
1553 struct sta_info *sta,
1554 struct ieee80211_mgmt *mgmt,
1555 size_t len);
1556
Johannes Berg849b7962009-02-10 21:25:54 +01001557int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001558 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001559int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001560 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001561void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1562void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001563void ieee80211_ba_session_work(struct work_struct *work);
1564void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001565void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001566
Johannes Berg04ecd252012-09-11 14:34:12 +02001567u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1568
Mahesh Palivela818255e2012-10-10 11:33:04 +00001569/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001570void
1571ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1572 struct ieee80211_supported_band *sband,
1573 const struct ieee80211_vht_cap *vht_cap_ie,
1574 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001575enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001576void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Marek Kwaczynskib1bce142014-02-03 14:44:44 +01001577u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1578 struct sta_info *sta, u8 opmode,
1579 enum ieee80211_band band, bool nss_only);
Johannes Berg0af83d32012-12-27 18:55:36 +01001580void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1581 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001582 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001583void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1584 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001585
Johannes Berg39192c02008-09-09 14:49:03 +02001586/* Spectrum management */
1587void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1588 struct ieee80211_mgmt *mgmt,
1589 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001590/**
1591 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1592 * @sdata: the sdata of the interface which has received the frame
1593 * @elems: parsed 802.11 elements received with the frame
1594 * @beacon: indicates if the frame was a beacon or probe response
1595 * @current_band: indicates the current band
1596 * @sta_flags: contains information about own capabilities and restrictions
1597 * to decide which channel switch announcements can be accepted. Only the
1598 * following subset of &enum ieee80211_sta_flags are evaluated:
1599 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1600 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1601 * %IEEE80211_STA_DISABLE_160MHZ.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001602 * @bssid: the currently connected bssid (for reporting)
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001603 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1604 All of them will be filled with if success only.
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001605 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1606 */
1607int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1608 struct ieee802_11_elems *elems, bool beacon,
1609 enum ieee80211_band current_band,
Chun-Yeow Yeohc0f17eb2013-10-14 19:08:29 -07001610 u32 sta_flags, u8 *bssid,
1611 struct ieee80211_csa_ie *csa_ie);
Johannes Berg39192c02008-09-09 14:49:03 +02001612
Johannes Bergf2753dd2009-04-14 10:09:24 +02001613/* Suspend/resume and hw reconfiguration */
1614int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001615void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001616
Johannes Bergeecc4802011-05-04 15:37:29 +02001617int __ieee80211_suspend(struct ieee80211_hw *hw,
1618 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001619
1620static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1621{
John W. Linville85f72bc2010-09-01 16:12:28 -04001622 struct ieee80211_local *local = hw_to_local(hw);
1623
1624 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1625 "%s: resume with hardware scan still in progress\n",
1626 wiphy_name(hw->wiphy));
1627
Johannes Bergf2753dd2009-04-14 10:09:24 +02001628 return ieee80211_reconfig(hw_to_local(hw));
1629}
Bob Copeland665af4f2009-01-19 11:20:53 -05001630
Johannes Bergc2d15602007-07-27 15:43:23 +02001631/* utility functions/constants */
Johannes Berg8a47cea2014-01-20 23:55:44 +01001632extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001633u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001634 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001635int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001636 int rate, int erp, int short_preamble,
1637 int shift);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001638void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001639 struct ieee80211_hdr *hdr, const u8 *tsc,
1640 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001641void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1642 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001643void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1644 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001645
Johannes Berg55de9082012-07-26 17:24:39 +02001646void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1647 struct sk_buff *skb, int tid,
1648 enum ieee80211_band band);
1649
1650static inline void
1651ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1652 struct sk_buff *skb, int tid,
1653 enum ieee80211_band band)
1654{
1655 rcu_read_lock();
1656 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1657 rcu_read_unlock();
1658}
1659
1660static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1661 struct sk_buff *skb, int tid)
1662{
1663 struct ieee80211_chanctx_conf *chanctx_conf;
1664
1665 rcu_read_lock();
1666 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1667 if (WARN_ON(!chanctx_conf)) {
1668 rcu_read_unlock();
1669 kfree_skb(skb);
1670 return;
1671 }
1672
1673 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001674 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001675 rcu_read_unlock();
1676}
1677
1678static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001679 struct sk_buff *skb)
1680{
1681 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1682 ieee80211_tx_skb_tid(sdata, skb, 7);
1683}
1684
Johannes Berg35d865a2013-05-28 10:54:03 +02001685u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001686 struct ieee802_11_elems *elems,
1687 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001688static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1689 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001690 struct ieee802_11_elems *elems)
1691{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001692 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001693}
1694
Kalle Valo520eb822008-12-18 23:35:27 +02001695void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1696void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1697void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001698void ieee80211_send_nullfunc(struct ieee80211_local *local,
1699 struct ieee80211_sub_if_data *sdata,
1700 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001701void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1702 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001703void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001704 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001705
Kalle Valoce7c9112008-12-18 23:35:20 +02001706void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001707 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001708 enum queue_stop_reason reason);
1709void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001710 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001711 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001712void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1713 enum queue_stop_reason reason);
1714void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1715 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001716void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001717void ieee80211_add_pending_skb(struct ieee80211_local *local,
1718 struct sk_buff *skb);
Johannes Berge3685e02014-02-20 11:19:58 +01001719void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1720 struct sk_buff_head *skbs);
Johannes Berg39ecc012013-02-13 12:11:00 +01001721void ieee80211_flush_queues(struct ieee80211_local *local,
1722 struct ieee80211_sub_if_data *sdata);
Kalle Valoce7c9112008-12-18 23:35:20 +02001723
Johannes Berg46900292009-02-15 12:44:28 +01001724void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001725 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001726 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001727 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1728 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001729void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1730 const u8 *bssid, u16 stype, u16 reason,
1731 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001732int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Bergc604b9f2012-11-29 12:45:18 +01001733 size_t buffer_len, const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001734 enum ieee80211_band band, u32 rate_mask,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001735 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001736struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001737 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001738 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001739 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001740 const u8 *ie, size_t ie_len,
1741 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001742void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001743 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001744 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001745 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001746 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001747
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001748u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01001749 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001750 enum ieee80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001751int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1752 enum ieee80211_smps_mode smps_mode);
1753int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1754 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001755void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Eliad Peller21f659b2013-11-11 20:14:01 +02001756void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001757
Johannes Berg8e664fb2009-12-23 13:15:38 +01001758size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1759 const u8 *ids, int n_ids, size_t offset);
1760size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001761u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001762 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001763u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001764 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001765 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001766u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1767 u32 cap);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001768int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1769 const struct ieee80211_supported_band *sband,
1770 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001771int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001772 struct sk_buff *skb, bool need_basic,
1773 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001774int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001775 struct sk_buff *skb, bool need_basic,
1776 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001777
Johannes Bergf444de02010-05-05 15:25:02 +02001778/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001779void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001780 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001781 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001782u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02001783
Michal Kaziord01a1e62012-06-26 14:37:16 +02001784int __must_check
1785ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001786 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001787 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001788int __must_check
Luciano Coelho11335a52013-10-30 13:09:39 +02001789ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
1790 const struct cfg80211_chan_def *chandef,
Michal Kazior09332482014-04-09 15:29:25 +02001791 enum ieee80211_chanctx_mode mode,
1792 bool radar_required);
Luciano Coelho11335a52013-10-30 13:09:39 +02001793int __must_check
1794ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata,
1795 u32 *changed);
1796int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
1797
1798int __must_check
Johannes Berg2c9b7352013-02-07 21:37:29 +01001799ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1800 const struct cfg80211_chan_def *chandef,
1801 u32 *changed);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001802/* NOTE: only use ieee80211_vif_change_channel() for channel switch */
1803int __must_check
1804ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001805 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001806void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001807void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001808void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1809 bool clear);
Michal Kaziorc0166da2014-04-09 15:29:33 +02001810int ieee80211_chanctx_refcount(struct ieee80211_local *local,
1811 struct ieee80211_chanctx *ctx);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001812
Johannes Berg04ecd252012-09-11 14:34:12 +02001813void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1814 struct ieee80211_chanctx *chanctx);
Eliad Peller21f659b2013-11-11 20:14:01 +02001815void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
1816 struct ieee80211_chanctx *ctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001817
1818void ieee80211_dfs_cac_timer(unsigned long data);
1819void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1820void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1821void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Chun-Yeow Yeohc6da6742013-10-14 19:08:28 -07001822int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
1823 struct cfg80211_csa_settings *csa_settings);
Johannes Berg04ecd252012-09-11 14:34:12 +02001824
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001825bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
1826bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
1827const struct ieee80211_cipher_scheme *
1828ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
1829 enum nl80211_iftype iftype);
1830int ieee80211_cs_headroom(struct ieee80211_local *local,
1831 struct cfg80211_crypto_settings *crypto,
1832 enum nl80211_iftype iftype);
Thomas Pedersen057d5f42013-12-19 10:25:15 -08001833void ieee80211_recalc_dtim(struct ieee80211_local *local,
1834 struct ieee80211_sub_if_data *sdata);
Luciano Coelho73de86a2014-02-13 11:31:59 +02001835int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
1836 const struct cfg80211_chan_def *chandef,
1837 enum ieee80211_chanctx_mode chanmode,
1838 u8 radar_detect);
Michal Kazior6fa001b2014-04-09 15:29:23 +02001839int ieee80211_max_num_channels(struct ieee80211_local *local);
Max Stepanov2475b1cc2013-03-24 14:23:27 +02001840
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001841/* TDLS */
1842int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02001843 const u8 *peer, u8 action_code, u8 dialog_token,
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001844 u16 status_code, u32 peer_capability,
1845 const u8 *extra_ies, size_t extra_ies_len);
1846int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg3b3a0162014-05-19 17:19:31 +02001847 const u8 *peer, enum nl80211_tdls_operation oper);
Arik Nemtsov95224fe2014-05-01 10:17:28 +03001848
1849
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001850#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001851#define debug_noinline noinline
1852#else
1853#define debug_noinline
1854#endif
1855
Jiri Bencf0706e82007-05-05 11:45:53 -07001856#endif /* IEEE80211_I_H */