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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;
Johannes Berg88600202012-02-13 15:17:18 +0100235 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100236};
237
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300238struct probe_resp {
239 struct rcu_head rcu_head;
240 int len;
241 u8 data[0];
242};
243
Marco Porschd012a602012-10-10 12:39:50 -0700244struct ps_data {
245 /* yes, this looks ugly, but guarantees that we can later use
246 * bitmap_empty :)
247 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
248 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
249 struct sk_buff_head bc_buf;
250 atomic_t num_sta_ps; /* number of stations in PS mode */
251 int dtim_count;
252 bool dtim_bc_mc;
253};
254
Jiri Bencf0706e82007-05-05 11:45:53 -0700255struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200256 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300257 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700258
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200259 /* to be used after channel switch. */
260 struct cfg80211_beacon_data *next_beacon;
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400261 struct list_head vlans;
262
Marco Porschd012a602012-10-10 12:39:50 -0700263 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200264 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Emmanuel Grumbach687da132013-10-01 16:45:43 +0300265 enum ieee80211_smps_mode req_smps, /* requested smps mode */
266 driver_smps_mode; /* smps mode request */
267
268 struct work_struct request_smps_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700269};
270
271struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700272 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100273 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700274};
275
276struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400277 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100278
279 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200280 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700281};
282
Luis Carlos Coboee385852008-02-23 15:17:11 +0100283struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700284 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
285 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
286 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100287 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
288 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700289 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100290};
291
292#define PREQ_Q_F_START 0x1
293#define PREQ_Q_F_REFRESH 0x2
294struct mesh_preq_queue {
295 struct list_head list;
296 u8 dst[ETH_ALEN];
297 u8 flags;
298};
299
Johannes Berg2eb278e2012-06-05 14:28:42 +0200300#if HZ/100 == 0
301#define IEEE80211_ROC_MIN_LEFT 1
302#else
303#define IEEE80211_ROC_MIN_LEFT (HZ/100)
304#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200305
Johannes Berg2eb278e2012-06-05 14:28:42 +0200306struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200307 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200308 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100309
Johannes Berg2eb278e2012-06-05 14:28:42 +0200310 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100311
312 struct ieee80211_sub_if_data *sdata;
313
Johannes Bergf679f652009-12-23 13:15:34 +0100314 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100315
Johannes Berg2eb278e2012-06-05 14:28:42 +0200316 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100317 bool to_be_freed;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200318
Johannes Berg2eb278e2012-06-05 14:28:42 +0200319 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100320
Johannes Berg2eb278e2012-06-05 14:28:42 +0200321 u32 duration, req_duration;
322 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200323 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200324 enum ieee80211_roc_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200325};
326
Johannes Berg46900292009-02-15 12:44:28 +0100327/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200328enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200329 IEEE80211_STA_CONNECTION_POLL = BIT(1),
330 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100331 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200332 IEEE80211_STA_CSA_RECEIVED = BIT(5),
333 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200334 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530335 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700336 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200337 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000338 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100339 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
340 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Bergab1faea2009-07-01 21:41:17 +0200341};
342
Johannes Berg66e67e42012-01-20 13:55:27 +0100343struct ieee80211_mgd_auth_data {
344 struct cfg80211_bss *bss;
345 unsigned long timeout;
346 int tries;
347 u16 algorithm, expected_transaction;
348
349 u8 key[WLAN_KEY_LEN_WEP104];
350 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100351 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100352 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100353
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300354 u16 sae_trans, sae_status;
355 size_t data_len;
356 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100357};
358
359struct ieee80211_mgd_assoc_data {
360 struct cfg80211_bss *bss;
361 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100362
363 unsigned long timeout;
364 int tries;
365
366 u16 capability;
367 u8 prev_bssid[ETH_ALEN];
368 u8 ssid[IEEE80211_MAX_SSID_LEN];
369 u8 ssid_len;
370 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100371 bool wmm, uapsd;
Alexander Bondar989c6502013-05-16 17:34:17 +0300372 bool need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100373 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100374 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100375
Johannes Berg9dde6422012-05-16 23:43:19 +0200376 u8 ap_ht_param;
377
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100378 struct ieee80211_vht_cap ap_vht_cap;
379
Johannes Berg66e67e42012-01-20 13:55:27 +0100380 size_t ie_len;
381 u8 ie[];
382};
383
Johannes Berg46900292009-02-15 12:44:28 +0100384struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100385 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200386 struct timer_list conn_mon_timer;
387 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530388 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200389 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530390 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200391 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200392 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100393
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100394 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200395 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300396 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100397 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100398 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200399
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100400 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100401 struct ieee80211_mgd_auth_data *auth_data;
402 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100403
Johannes Berg77fdaa12009-07-07 03:45:17 +0200404 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100405
Jiri Bencf0706e82007-05-05 11:45:53 -0700406 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700407
Johannes Berg965beda2009-04-16 13:17:24 +0200408 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200409 bool broken_ap; /* AP is broken -- turn off powersave */
Alexander Bondar989c6502013-05-16 17:34:17 +0300410 bool have_beacon;
Johannes Berg826262c2012-12-10 16:38:14 +0200411 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100412 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200413 driver_smps_mode; /* smps mode request */
414
415 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200416
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400417 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700418
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300419 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200420 u32 beacon_crc;
421
Johannes Berg1672c0e32013-01-29 15:02:27 +0100422 bool status_acked;
423 bool status_received;
424 __le16 status_fc;
425
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200426 enum {
427 IEEE80211_MFP_DISABLED,
428 IEEE80211_MFP_OPTIONAL,
429 IEEE80211_MFP_REQUIRED
430 } mfp; /* management frame protection */
431
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200432 /*
433 * Bitmask of enabled u-apsd queues,
434 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
435 * to take effect.
436 */
437 unsigned int uapsd_queues;
438
439 /*
440 * Maximum number of buffered frames AP can deliver during a
441 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
442 * Needs a new association to take effect.
443 */
444 unsigned int uapsd_max_sp_len;
445
Jiri Bencf0706e82007-05-05 11:45:53 -0700446 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100447
448 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700449
Janusz Dziedzic67baf662013-03-21 15:47:56 +0100450 s16 p2p_noa_index;
Johannes Berg488dd7b2012-10-29 20:08:01 +0100451
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700452 /* Signal strength from the last Beacon frame in the current BSS. */
453 int last_beacon_signal;
454
455 /*
456 * Weighted average of the signal strength from Beacon frames in the
457 * current BSS. This is in units of 1/16 of the signal unit to maintain
458 * accuracy and to speed up calculations, i.e., the value need to be
459 * divided by 16 to get the actual value.
460 */
461 int ave_beacon_signal;
462
463 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300464 * Number of Beacon frames used in ave_beacon_signal. This can be used
465 * to avoid generating less reliable cqm events that would be based
466 * only on couple of received frames.
467 */
468 unsigned int count_beacon_signal;
469
470 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700471 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
472 * that triggered a cqm event. 0 indicates that no event has been
473 * generated for the current association.
474 */
475 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700476
477 /*
478 * State variables for keeping track of RSSI of the AP currently
479 * connected to and informing driver when RSSI has gone
480 * below/above a certain threshold.
481 */
482 int rssi_min_thold, rssi_max_thold;
483 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800484
485 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
486 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100487 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
488 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700489};
490
Johannes Berg46900292009-02-15 12:44:28 +0100491struct ieee80211_if_ibss {
492 struct timer_list timer;
Simon Wunderlichcd7760e2013-08-28 13:41:31 +0200493 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100494
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200495 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200496
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300497 u32 basic_rates;
498
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200499 bool fixed_bssid;
500 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200501 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100502
Antonio Quartulli267335d2012-01-31 20:25:47 +0100503 bool control_port;
504
Felix Fietkau4d196e42012-03-01 11:23:37 +0100505 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200506 u8 ssid[IEEE80211_MAX_SSID_LEN];
507 u8 ssid_len, ie_len;
508 u8 *ie;
Simon Wunderlich3aede782013-05-16 13:00:36 +0200509 struct cfg80211_chan_def chandef;
Johannes Berg46900292009-02-15 12:44:28 +0100510
511 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200512 /* probe response/beacon for IBSS */
Johannes Bergc3ffeab2013-03-07 20:54:29 +0100513 struct beacon_data __rcu *presp;
Johannes Berg46900292009-02-15 12:44:28 +0100514
Simon Wunderlich822854b2013-06-28 10:39:59 +0200515 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
516 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
517
Johannes Berg8bf11d82011-12-15 11:17:37 +0100518 spinlock_t incomplete_lock;
519 struct list_head incomplete_stations;
520
Johannes Berg46900292009-02-15 12:44:28 +0100521 enum {
522 IEEE80211_IBSS_MLME_SEARCH,
523 IEEE80211_IBSS_MLME_JOINED,
524 } state;
525};
526
Javier Cardonadbf498f2012-03-31 11:31:32 -0700527/**
528 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
529 *
530 * these declarations define the interface, which enables
531 * vendor-specific mesh synchronization
532 *
533 */
534struct ieee802_11_elems;
535struct ieee80211_mesh_sync_ops {
536 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
537 u16 stype,
538 struct ieee80211_mgmt *mgmt,
539 struct ieee802_11_elems *elems,
540 struct ieee80211_rx_status *rx_status);
541 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
542 /* add other framework functions here */
543};
544
Johannes Berg472dbc42008-09-11 00:01:49 +0200545struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200546 struct timer_list housekeeping_timer;
547 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000548 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200549
Javier Cardona18889232009-08-10 12:15:52 -0700550 unsigned long wrkq_flags;
Thomas Pedersenf81a9de2013-06-13 15:54:41 -0700551 unsigned long mbss_changed;
Johannes Berg472dbc42008-09-11 00:01:49 +0200552
553 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
554 size_t mesh_id_len;
555 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000556 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200557 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000558 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200559 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000560 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700561 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000562 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700563 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000564 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000565 /* Local mesh Sequence Number */
566 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200567 /* Last used PREQ ID */
568 u32 preq_id;
569 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000570 /* Timestamp of last SN update */
571 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800572 /* Time when it's ok to send next PERR */
573 unsigned long next_perr;
574 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200575 unsigned long last_preq;
576 struct mesh_rmc *rmc;
577 spinlock_t mesh_preq_queue_lock;
578 struct mesh_preq_queue preq_queue;
579 int preq_queue_len;
580 struct mesh_stats mshstats;
581 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700582 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200583 u32 mesh_seqnum;
584 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700585 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800586 struct beacon_data __rcu *beacon;
Javier Cardona581a8b02011-04-07 15:08:27 -0700587 const u8 *ie;
588 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700589 enum {
590 IEEE80211_MESH_SEC_NONE = 0x0,
591 IEEE80211_MESH_SEC_AUTHED = 0x1,
592 IEEE80211_MESH_SEC_SECURED = 0x2,
593 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800594 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700595 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200596 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700597 s64 sync_offset_clockdrift_max;
598 spinlock_t sync_offset_lock;
599 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100600 /* mesh power save */
601 enum nl80211_mesh_power_mode nonpeer_pm;
602 int ps_peers_light_sleep;
603 int ps_peers_deep_sleep;
604 struct ps_data ps;
Johannes Berg472dbc42008-09-11 00:01:49 +0200605};
Johannes Berg902acc72008-02-23 15:17:19 +0100606
607#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200608#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
609 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100610#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200611#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100612 do { } while (0)
613#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700614
Johannes Berg213cd112008-09-11 00:01:54 +0200615/**
616 * enum ieee80211_sub_if_data_flags - virtual interface flags
617 *
618 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
619 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200620 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
621 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
622 * associated stations and deliver multicast frames both
623 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200624 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100625 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200626 */
627enum ieee80211_sub_if_data_flags {
628 IEEE80211_SDATA_ALLMULTI = BIT(0),
629 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100630 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
631 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200632 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100633 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200634};
635
Johannes Berg34d4bc42010-08-27 12:35:58 +0200636/**
637 * enum ieee80211_sdata_state_bits - virtual interface state bits
638 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
639 * mirrors netif_running() but is separate for interface type
640 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200641 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
642 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100643 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
644 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200645 */
646enum ieee80211_sdata_state_bits {
647 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200648 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100649 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200650};
651
Michal Kaziord01a1e62012-06-26 14:37:16 +0200652/**
653 * enum ieee80211_chanctx_mode - channel context configuration mode
654 *
655 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
656 * multiple interfaces
657 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
658 * only by a single interface. This can be used for example for
659 * non-fixed channel IBSS.
660 */
661enum ieee80211_chanctx_mode {
662 IEEE80211_CHANCTX_SHARED,
663 IEEE80211_CHANCTX_EXCLUSIVE
664};
665
666struct ieee80211_chanctx {
667 struct list_head list;
668 struct rcu_head rcu_head;
669
670 enum ieee80211_chanctx_mode mode;
671 int refcount;
Johannes Berg8a61af62012-12-13 17:42:30 +0100672 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200673
674 struct ieee80211_chanctx_conf conf;
675};
676
Jiri Bencf0706e82007-05-05 11:45:53 -0700677struct ieee80211_sub_if_data {
678 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700679
680 struct wireless_dev wdev;
681
Johannes Berg11a843b2007-08-28 17:01:55 -0400682 /* keys */
683 struct list_head key_list;
684
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530685 /* count for keys needing tailroom space allocation */
686 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100687 int crypto_tx_tailroom_pending_dec;
688 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530689
Jiri Bencf0706e82007-05-05 11:45:53 -0700690 struct net_device *dev;
691 struct ieee80211_local *local;
692
Jiri Slaby13262ff2007-08-28 17:01:54 -0400693 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200694
Johannes Berg34d4bc42010-08-27 12:35:58 +0200695 unsigned long state;
696
Jiri Bencf0706e82007-05-05 11:45:53 -0700697 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700698
Johannes Berg47846c92009-11-25 17:46:19 +0100699 char name[IFNAMSIZ];
700
Jiri Bencf0706e82007-05-05 11:45:53 -0700701 /* Fragment table for host-based reassembly */
702 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
703 unsigned int fragment_next;
704
Simon Wunderlichb53be792011-11-18 14:20:44 +0100705 /* TID bitmap for NoAck policy */
706 u16 noack_map;
707
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300708 /* bit field of ACM bits (BIT(802.1D tag)) */
709 u8 wmm_acm;
710
Johannes Berg40b275b2011-05-13 14:15:49 +0200711 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
712 struct ieee80211_key __rcu *default_unicast_key;
713 struct ieee80211_key __rcu *default_multicast_key;
714 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700715
Johannes Berg94778282008-10-10 13:21:59 +0200716 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300717 __be16 control_port_protocol;
718 bool control_port_no_encrypt;
Johannes Berg94778282008-10-10 13:21:59 +0200719
Johannes Berg54bcbc62012-03-28 11:04:25 +0200720 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300721
Simon Wunderlich73da7d52013-07-11 16:09:06 +0200722 struct work_struct csa_finalize_work;
723 int csa_counter_offset_beacon;
724 int csa_counter_offset_presp;
725 bool csa_radar_required;
726
Johannes Berg04ecd252012-09-11 14:34:12 +0200727 /* used to reconfigure hardware SM PS */
728 struct work_struct recalc_smps;
729
Johannes Berg64592c82010-06-10 10:21:31 +0200730 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200731 struct sk_buff_head skb_queue;
732
Johannes Berg04ecd252012-09-11 14:34:12 +0200733 u8 needed_rx_chains;
734 enum ieee80211_smps_mode smps_mode;
735
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200736 int user_power_level; /* in dBm */
737 int ap_power_level; /* in dBm */
738
Simon Wunderlich164eb022013-02-08 18:16:20 +0100739 bool radar_required;
740 struct delayed_work dfs_cac_timer_work;
741
Johannes Berg3e122be2008-07-09 14:40:34 +0200742 /*
743 * AP this belongs to: self in AP mode and
744 * corresponding AP in VLAN mode, NULL for
745 * all others (might be needed later in IBSS)
746 */
747 struct ieee80211_if_ap *bss;
748
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200749 /* bitmap of allowed (non-MCS) rate indexes for rate control */
750 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Felix Fietkau2ffbe6d2013-04-16 13:38:42 +0200751
752 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100753 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700754
755 union {
756 struct ieee80211_if_ap ap;
757 struct ieee80211_if_wds wds;
758 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100759 struct ieee80211_if_managed mgd;
760 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200761 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100762 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700763 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700764
Johannes Berg97f97b12012-12-13 22:54:58 +0100765 spinlock_t cleanup_stations_lock;
766 struct list_head cleanup_stations;
767 struct work_struct cleanup_stations_wk;
768
Jiri Bence9f207f2007-05-05 11:46:38 -0700769#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300770 struct {
Ben Greear295bafb2010-09-22 20:29:01 -0700771 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100772 struct dentry *default_unicast_key;
773 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200774 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100775 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700776#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100777
Johannes Berg32bfd352007-12-19 01:31:26 +0100778 /* must be last, dynamically sized area in this! */
779 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700780};
781
Johannes Berg32bfd352007-12-19 01:31:26 +0100782static inline
783struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
784{
785 return container_of(p, struct ieee80211_sub_if_data, vif);
786}
787
Johannes Berg8d61ffa2013-05-10 12:32:47 +0200788static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
789 __acquires(&sdata->wdev.mtx)
790{
791 mutex_lock(&sdata->wdev.mtx);
792 __acquire(&sdata->wdev.mtx);
793}
794
795static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
796 __releases(&sdata->wdev.mtx)
797{
798 mutex_unlock(&sdata->wdev.mtx);
799 __release(&sdata->wdev.mtx);
800}
801
802static inline void
803sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
804{
805 lockdep_assert_held(&sdata->wdev.mtx);
806}
807
Johannes Berg55de9082012-07-26 17:24:39 +0200808static inline enum ieee80211_band
809ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
810{
811 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
812 struct ieee80211_chanctx_conf *chanctx_conf;
813
814 rcu_read_lock();
815 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
816 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100817 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200818 rcu_read_unlock();
819
820 return band;
821}
822
Simon Wunderlich438b61b2013-07-08 16:55:51 +0200823static inline int
824ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
825{
826 switch (chandef->width) {
827 case NL80211_CHAN_WIDTH_5:
828 return 2;
829 case NL80211_CHAN_WIDTH_10:
830 return 1;
831 default:
832 return 0;
833 }
834}
835
836static inline int
837ieee80211_vif_get_shift(struct ieee80211_vif *vif)
838{
839 struct ieee80211_chanctx_conf *chanctx_conf;
840 int shift = 0;
841
842 rcu_read_lock();
843 chanctx_conf = rcu_dereference(vif->chanctx_conf);
844 if (chanctx_conf)
845 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
846 rcu_read_unlock();
847
848 return shift;
849}
850
Johannes Bergc1475ca2010-06-10 10:21:37 +0200851enum sdata_queue_type {
852 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
853 IEEE80211_SDATA_QUEUE_AGG_START = 1,
854 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
855};
856
Jiri Bencf0706e82007-05-05 11:45:53 -0700857enum {
858 IEEE80211_RX_MSG = 1,
859 IEEE80211_TX_STATUS_MSG = 2,
860};
861
Kalle Valoce7c9112008-12-18 23:35:20 +0200862enum queue_stop_reason {
863 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200864 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100865 IEEE80211_QUEUE_STOP_REASON_CSA,
866 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100867 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200868 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600869 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +0100870 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Kalle Valoce7c9112008-12-18 23:35:20 +0200871};
872
Luciano Coelho65a65382010-12-21 16:02:17 +0200873#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100874struct tpt_led_trigger {
875 struct led_trigger trig;
876 char name[32];
877 const struct ieee80211_tpt_blink *blink_table;
878 unsigned int blink_table_len;
879 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100880 unsigned long prev_traffic;
881 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100882 unsigned int active, want;
883 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100884};
Luciano Coelho65a65382010-12-21 16:02:17 +0200885#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100886
Helmut Schaa142b9f52009-07-23 13:18:01 +0200887/**
888 * mac80211 scan flags - currently active scan mode
889 *
890 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
891 * well be on the operating channel
892 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
893 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700894 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
895 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200896 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
897 * that the scan completed.
898 * @SCAN_ABORTED: Set for our scan work function when the driver reported
899 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200900 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200901enum {
902 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200903 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700904 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200905 SCAN_COMPLETED,
906 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200907};
908
909/**
910 * enum mac80211_scan_state - scan state machine states
911 *
912 * @SCAN_DECISION: Main entry point to the scan state machine, this state
913 * determines if we should keep on scanning or switch back to the
914 * operating channel
915 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
916 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100917 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
918 * send out data
919 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -0700920 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200921 */
922enum mac80211_scan_state {
923 SCAN_DECISION,
924 SCAN_SET_CHANNEL,
925 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100926 SCAN_SUSPEND,
927 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -0700928 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200929};
930
Jiri Bencf0706e82007-05-05 11:45:53 -0700931struct ieee80211_local {
932 /* embed the driver visible part.
933 * don't cast (use the static inlines below), but we keep
934 * it first anyway so they become a no-op */
935 struct ieee80211_hw hw;
936
937 const struct ieee80211_ops *ops;
938
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400939 /*
940 * private workqueue to mac80211. mac80211 makes this accessible
941 * via ieee80211_queue_work()
942 */
943 struct workqueue_struct *workqueue;
944
Johannes Berge4e72fb2009-03-23 17:28:42 +0100945 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100946 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200947 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100948
Jiri Bencf0706e82007-05-05 11:45:53 -0700949 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100950 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100951 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200952 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
953 fif_probe_req;
954 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400955 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200956
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300957 bool wiphy_ciphers_allocated;
958
Johannes Bergfe57d9f2012-07-26 14:55:08 +0200959 bool use_chanctx;
960
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200961 /* protects the aggregated multicast list and filter calls */
962 spinlock_t filter_lock;
963
Johannes Berg3ac64be2009-08-17 16:16:53 +0200964 /* used for uploading changed mc list */
965 struct work_struct reconfig_filter;
966
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200967 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000968 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200969
Johannes Bergd0709a62008-02-25 16:27:46 +0100970 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200971
972 /*
973 * suspended is true if we finished all the suspend _and_ we have
974 * not yet come up from resume. This is to be used by mac80211
975 * to ensure driver sanity during suspend and mac80211's own
976 * sanity. It can eventually be used for WoW as well.
977 */
978 bool suspended;
979
980 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100981 * Resuming is true while suspended, but when we're reprogramming the
982 * hardware -- at that time it's allowed to use ieee80211_queue_work()
983 * again even though some other parts of the stack are still suspended
984 * and we still drop received frames to avoid waking the stack.
985 */
986 bool resuming;
987
988 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200989 * quiescing is true during the suspend process _only_ to
990 * ease timer cancelling etc.
991 */
992 bool quiescing;
993
Johannes Bergea77f122009-08-21 14:44:45 +0200994 /* device is started */
995 bool started;
996
Arik Nemtsov04800ad2012-06-06 11:25:02 +0300997 /* device is during a HW reconfig */
998 bool in_reconfig;
999
Johannes Bergeecc4802011-05-04 15:37:29 +02001000 /* wowlan is enabled -- don't reconfig on resume */
1001 bool wowlan;
1002
Simon Wunderlich164eb022013-02-08 18:16:20 +01001003 /* DFS/radar detection is enabled */
1004 bool radar_detect_enabled;
1005 struct work_struct radar_detected_work;
1006
Johannes Berg04ecd252012-09-11 14:34:12 +02001007 /* number of RX chains the hardware has */
1008 u8 rx_chains;
1009
Johannes Bergb306f452007-07-10 19:32:08 +02001010 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -07001011
Jiri Bencf0706e82007-05-05 11:45:53 -07001012 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1013 * added to skb_queue will be processed, but frames in
1014 * skb_queue_unreliable may be dropped if the total length of these
1015 * queues increases over the limit. */
1016#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1017 struct tasklet_struct tasklet;
1018 struct sk_buff_head skb_queue;
1019 struct sk_buff_head skb_queue_unreliable;
1020
Christian Lamparterf9e124f2013-02-04 17:44:44 +00001021 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +01001022
Johannes Bergd0709a62008-02-25 16:27:46 +01001023 /* Station data */
1024 /*
Johannes Berg4d339602011-12-15 11:24:20 +01001025 * The mutex only protects the list, hash table and
1026 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +01001027 */
Johannes Berg34e89502010-02-03 13:59:58 +01001028 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +01001029 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +01001030 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +01001031 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +02001032 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -07001033 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +02001034 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -07001035
Johannes Berg2a577d92009-03-23 17:28:37 +01001036 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -07001037 struct tasklet_struct tx_pending_tasklet;
1038
Johannes Berga6a67db2010-06-10 10:21:41 +02001039 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +01001040
Johannes Berg53918992007-09-26 15:19:47 +02001041 /* number of interfaces with corresponding IFF_ flags */
1042 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -07001043
1044 struct rate_control_ref *rate_ctrl;
1045
Felix Fietkau5f9f1812011-03-25 21:39:19 +01001046 struct crypto_cipher *wep_tx_tfm;
1047 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -07001048 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001049
Johannes Bergc771c9d2009-01-23 22:54:03 +01001050 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001051 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001052 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001053
Johannes Bergb16bd152008-04-11 21:40:35 +02001054 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001055 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001056 * key pointers (write access, they're RCU.)
1057 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001058 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001059
Johannes Berga1699b72010-07-30 16:46:07 +02001060 /* mutex for scan and work locking */
1061 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001062
Johannes Bergc2b13452008-09-11 00:01:55 +02001063 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001064 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001065 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001066 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001067 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001068 struct cfg80211_chan_def scan_chandef;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001069 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001070 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001071 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001072 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001073
Luciano Coelho85a99942011-05-12 16:28:29 +03001074 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001075 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001076
Helmut Schaadf13cce2010-02-24 14:19:21 +01001077 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001078 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001079 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001080 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg85220d72013-03-25 18:29:27 +01001081 struct cfg80211_chan_def csa_chandef;
Johannes Berg55de9082012-07-26 17:24:39 +02001082 /* For backward compatibility only -- do not use */
Karl Beldan675a0b02013-03-25 16:26:57 +01001083 struct cfg80211_chan_def _oper_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001084
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001085 /* Temporary remain-on-channel for off-channel operations */
1086 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001087
Michal Kaziord01a1e62012-06-26 14:37:16 +02001088 /* channel contexts */
1089 struct list_head chanctx_list;
1090 struct mutex chanctx_mtx;
1091
Jiri Bencf0706e82007-05-05 11:45:53 -07001092 /* SNMP counters */
1093 /* dot11CountersTable */
1094 u32 dot11TransmittedFragmentCount;
1095 u32 dot11MulticastTransmittedFrameCount;
1096 u32 dot11FailedCount;
1097 u32 dot11RetryCount;
1098 u32 dot11MultipleRetryCount;
1099 u32 dot11FrameDuplicateCount;
1100 u32 dot11ReceivedFragmentCount;
1101 u32 dot11MulticastReceivedFrameCount;
1102 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001103
1104#ifdef CONFIG_MAC80211_LEDS
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001105 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001106 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001107 char tx_led_name[32], rx_led_name[32],
1108 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001109#endif
1110
Jiri Bencf0706e82007-05-05 11:45:53 -07001111#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1112 /* TX/RX handler statistics */
1113 unsigned int tx_handlers_drop;
1114 unsigned int tx_handlers_queued;
1115 unsigned int tx_handlers_drop_unencrypted;
1116 unsigned int tx_handlers_drop_fragment;
1117 unsigned int tx_handlers_drop_wep;
1118 unsigned int tx_handlers_drop_not_assoc;
1119 unsigned int tx_handlers_drop_unauth_port;
1120 unsigned int rx_handlers_drop;
1121 unsigned int rx_handlers_queued;
1122 unsigned int rx_handlers_drop_nullfunc;
1123 unsigned int rx_handlers_drop_defrag;
1124 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001125 unsigned int tx_expand_skb_head;
1126 unsigned int tx_expand_skb_head_cloned;
1127 unsigned int rx_expand_skb_head;
1128 unsigned int rx_expand_skb_head2;
1129 unsigned int rx_handlers_fragments;
1130 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001131#define I802_DEBUG_INC(c) (c)++
1132#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1133#define I802_DEBUG_INC(c) do { } while (0)
1134#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1135
1136
Jiri Bencf0706e82007-05-05 11:45:53 -07001137 int total_ps_buffered; /* total number of all buffered unicast and
1138 * multicast packets for power saving stations
1139 */
Kalle Valo520eb822008-12-18 23:35:27 +02001140
Kalle Valo572e0012009-02-10 17:09:31 +02001141 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001142 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001143 /*
1144 * PS can only be enabled when we have exactly one managed
1145 * interface (and monitors) in PS, this then points there.
1146 */
1147 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001148 struct work_struct dynamic_ps_enable_work;
1149 struct work_struct dynamic_ps_disable_work;
1150 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001151 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001152 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001153 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001154
Juuso Oikarinenff616382010-06-09 09:51:52 +03001155 /*
1156 * The dynamic ps timeout configured from user space via WEXT -
1157 * this will override whatever chosen by mac80211 internally.
1158 */
1159 int dynamic_ps_forced_timeout;
1160
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001161 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001162
Johannes Berg0f782312009-12-01 13:37:02 +01001163 enum ieee80211_smps_mode smps_mode;
1164
Johannes Bergf2753dd2009-04-14 10:09:24 +02001165 struct work_struct restart_work;
1166
Jiri Bence9f207f2007-05-05 11:46:38 -07001167#ifdef CONFIG_MAC80211_DEBUGFS
1168 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001169 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001170 struct dentry *keys;
1171 } debugfs;
1172#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001173
Johannes Berg2eb278e2012-06-05 14:28:42 +02001174 /*
1175 * Remain-on-channel support
1176 */
1177 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001178 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001179 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001180 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001181
Johannes Berga729cff2011-11-06 14:13:34 +01001182 struct idr ack_status_frames;
1183 spinlock_t ack_status_lock;
1184
Johannes Bergf142c6b2012-06-18 20:07:15 +02001185 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1186
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001187 /* virtual monitor interface */
1188 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001189 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001190};
1191
Johannes Berg3e122be2008-07-09 14:40:34 +02001192static inline struct ieee80211_sub_if_data *
1193IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1194{
Johannes Berg3e122be2008-07-09 14:40:34 +02001195 return netdev_priv(dev);
1196}
1197
Johannes Berg71bbc992012-06-15 15:30:18 +02001198static inline struct ieee80211_sub_if_data *
1199IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1200{
1201 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1202}
1203
Johannes Bergc1475ca2010-06-10 10:21:37 +02001204/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001205struct ieee80211_ra_tid {
1206 u8 ra[ETH_ALEN];
1207 u16 tid;
1208};
1209
Johannes Bergdd769862011-11-18 16:54:50 +01001210/* Parsed Information Elements */
1211struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001212 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001213 size_t total_len;
1214
1215 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001216 const u8 *ssid;
1217 const u8 *supp_rates;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001218 const u8 *ds_params;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001219 const struct ieee80211_tim_ie *tim;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001220 const u8 *challenge;
1221 const u8 *rsn;
1222 const u8 *erp_info;
1223 const u8 *ext_supp_rates;
1224 const u8 *wmm_info;
1225 const u8 *wmm_param;
1226 const struct ieee80211_ht_cap *ht_cap_elem;
1227 const struct ieee80211_ht_operation *ht_operation;
1228 const struct ieee80211_vht_cap *vht_cap_elem;
1229 const struct ieee80211_vht_operation *vht_operation;
1230 const struct ieee80211_meshconf_ie *mesh_config;
1231 const u8 *mesh_id;
1232 const u8 *peering;
1233 const __le16 *awake_window;
1234 const u8 *preq;
1235 const u8 *prep;
1236 const u8 *perr;
1237 const struct ieee80211_rann_ie *rann;
1238 const struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergb4f286a12013-03-26 14:13:58 +01001239 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
Johannes Bergb2e506b2013-03-26 14:54:16 +01001240 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001241 const u8 *country_elem;
1242 const u8 *pwr_constr_elem;
Johannes Berg79ba1d82013-03-27 14:38:07 +01001243 const struct ieee80211_timeout_interval_ie *timeout_int;
Johannes Berg4a3cb702013-02-12 16:43:19 +01001244 const u8 *opmode_notif;
Johannes Berg85220d72013-03-25 18:29:27 +01001245 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
Johannes Bergdd769862011-11-18 16:54:50 +01001246
1247 /* length of them, respectively */
1248 u8 ssid_len;
1249 u8 supp_rates_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001250 u8 tim_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001251 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001252 u8 rsn_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001253 u8 ext_supp_rates_len;
1254 u8 wmm_info_len;
1255 u8 wmm_param_len;
1256 u8 mesh_id_len;
1257 u8 peering_len;
1258 u8 preq_len;
1259 u8 prep_len;
1260 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001261 u8 country_elem_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001262
1263 /* whether a parse error occurred while retrieving these elements */
1264 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001265};
1266
Jiri Bencf0706e82007-05-05 11:45:53 -07001267static inline struct ieee80211_local *hw_to_local(
1268 struct ieee80211_hw *hw)
1269{
1270 return container_of(hw, struct ieee80211_local, hw);
1271}
1272
Jiri Bencf0706e82007-05-05 11:45:53 -07001273
Johannes Berg571ecf62007-07-27 15:43:22 +02001274static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1275{
Joe Perchesb203ca32012-05-08 18:56:52 +00001276 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001277 is_broadcast_ether_addr(raddr);
1278}
1279
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001280static inline bool
1281ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1282{
1283 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1284 status->flag & RX_FLAG_MACTIME_END);
1285 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1286}
Johannes Berg571ecf62007-07-27 15:43:22 +02001287
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001288u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1289 struct ieee80211_rx_status *status,
1290 unsigned int mpdu_len,
1291 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001292int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001293void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001294void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1295 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001296void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001297u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001298
Johannes Berg46900292009-02-15 12:44:28 +01001299/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001300void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001301int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1302 struct cfg80211_auth_request *req);
1303int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1304 struct cfg80211_assoc_request *req);
1305int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001306 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001307int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001308 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001309void ieee80211_send_pspoll(struct ieee80211_local *local,
1310 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001311void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001312void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001313int ieee80211_max_network_latency(struct notifier_block *nb,
1314 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001315int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001316void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1317void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1318 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001319void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001320void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001321void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001322void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1323 __le16 fc, bool acked);
Johannes Bergb8360ab2013-04-29 14:57:44 +02001324void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001325
Johannes Berg46900292009-02-15 12:44:28 +01001326/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001327void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1328void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001329void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1330 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001331int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1332 struct cfg80211_ibss_params *params);
1333int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001334void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1335void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1336 struct sk_buff *skb);
Simon Wunderlichcd7760e2013-08-28 13:41:31 +02001337int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1338 struct cfg80211_csa_settings *csa_settings);
1339int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1340void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001341
1342/* mesh code */
1343void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1344void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1345 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001346
Johannes Berg9c6bd792008-09-11 00:01:52 +02001347/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001348void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001349int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1350 const u8 *ssid, u8 ssid_len,
Simon Wunderlich7ca15a02013-07-08 16:55:56 +02001351 struct ieee80211_channel *chan,
1352 enum nl80211_bss_scan_width scan_width);
Johannes Bergc2b13452008-09-11 00:01:55 +02001353int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001354 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001355void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001356void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001357void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001358
Johannes Berg0a51b272008-09-08 17:44:25 +02001359void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001360struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001361ieee80211_bss_info_update(struct ieee80211_local *local,
1362 struct ieee80211_rx_status *rx_status,
1363 struct ieee80211_mgmt *mgmt,
1364 size_t len,
1365 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001366 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001367void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001368 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001369
Luciano Coelho79f460c2011-05-11 17:09:36 +03001370/* scheduled scan handling */
1371int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1372 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001373int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1374void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001375
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001376/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001377void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1378void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001379void ieee80211_roc_setup(struct ieee80211_local *local);
1380void ieee80211_start_next_roc(struct ieee80211_local *local);
Johannes Bergc8f994e2013-03-27 22:49:19 +01001381void ieee80211_roc_purge(struct ieee80211_local *local,
1382 struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001383void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001384void ieee80211_sw_roc_work(struct work_struct *work);
1385void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001386
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001387/* channel switch handling */
1388void ieee80211_csa_finalize_work(struct work_struct *work);
1389
Johannes Berg3e122be2008-07-09 14:40:34 +02001390/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001391int ieee80211_iface_init(void);
1392void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001393int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001394 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001395 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001396int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001397 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001398void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001399void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001400u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001401void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001402void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1403 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001404int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1405void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg3c3e21e2013-03-27 23:20:27 +01001406int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1407void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -07001408
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001409bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1410void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001411int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1412 struct cfg80211_beacon_data *params);
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001413
Johannes Berg9607e6b2009-12-23 13:15:31 +01001414static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1415{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001416 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001417}
1418
Johannes Berge2ebc742007-07-27 15:43:22 +02001419/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001420void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1421void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001422netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1423 struct net_device *dev);
1424netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1425 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001426void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1427 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001428
Johannes Bergde1ede72008-09-09 14:42:50 +02001429/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001430void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1431 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001432bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001433 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001434 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001435 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001436void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1437 const u8 *da, u16 tid,
1438 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001439int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1440 enum ieee80211_smps_mode smps, const u8 *da,
1441 const u8 *bssid);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001442void ieee80211_request_smps_ap_work(struct work_struct *work);
1443void ieee80211_request_smps_mgd_work(struct work_struct *work);
1444bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1445 enum ieee80211_smps_mode smps_mode_new);
Johannes Bergde1ede72008-09-09 14:42:50 +02001446
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001447void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001448 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001449void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001450 u16 initiator, u16 reason, bool stop);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001451void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1452 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001453void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1454 struct sta_info *sta,
1455 struct ieee80211_mgmt *mgmt, size_t len);
1456void ieee80211_process_addba_resp(struct ieee80211_local *local,
1457 struct sta_info *sta,
1458 struct ieee80211_mgmt *mgmt,
1459 size_t len);
1460void ieee80211_process_addba_request(struct ieee80211_local *local,
1461 struct sta_info *sta,
1462 struct ieee80211_mgmt *mgmt,
1463 size_t len);
1464
Johannes Berg849b7962009-02-10 21:25:54 +01001465int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001466 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001467int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001468 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001469void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1470void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001471void ieee80211_ba_session_work(struct work_struct *work);
1472void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001473void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001474
Johannes Berg04ecd252012-09-11 14:34:12 +02001475u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1476
Mahesh Palivela818255e2012-10-10 11:33:04 +00001477/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001478void
1479ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1480 struct ieee80211_supported_band *sband,
1481 const struct ieee80211_vht_cap *vht_cap_ie,
1482 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001483enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001484void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Johannes Berg0af83d32012-12-27 18:55:36 +01001485void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1486 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001487 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001488void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1489 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001490
Johannes Berg39192c02008-09-09 14:49:03 +02001491/* Spectrum management */
1492void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1493 struct ieee80211_mgmt *mgmt,
1494 size_t len);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001495/**
1496 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1497 * @sdata: the sdata of the interface which has received the frame
1498 * @elems: parsed 802.11 elements received with the frame
1499 * @beacon: indicates if the frame was a beacon or probe response
1500 * @current_band: indicates the current band
1501 * @sta_flags: contains information about own capabilities and restrictions
1502 * to decide which channel switch announcements can be accepted. Only the
1503 * following subset of &enum ieee80211_sta_flags are evaluated:
1504 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1505 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1506 * %IEEE80211_STA_DISABLE_160MHZ.
1507 * @count: to be filled with the counter until the switch (on success only)
1508 * @bssid: the currently connected bssid (for reporting)
1509 * @mode: to be filled with CSA mode (on success only)
1510 * @new_chandef: to be filled with destination chandef (on success only)
1511 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1512 */
1513int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1514 struct ieee802_11_elems *elems, bool beacon,
1515 enum ieee80211_band current_band,
1516 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
1517 struct cfg80211_chan_def *new_chandef);
Johannes Berg39192c02008-09-09 14:49:03 +02001518
Johannes Bergf2753dd2009-04-14 10:09:24 +02001519/* Suspend/resume and hw reconfiguration */
1520int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001521void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001522
Johannes Bergeecc4802011-05-04 15:37:29 +02001523int __ieee80211_suspend(struct ieee80211_hw *hw,
1524 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001525
1526static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1527{
John W. Linville85f72bc2010-09-01 16:12:28 -04001528 struct ieee80211_local *local = hw_to_local(hw);
1529
1530 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1531 "%s: resume with hardware scan still in progress\n",
1532 wiphy_name(hw->wiphy));
1533
Johannes Bergf2753dd2009-04-14 10:09:24 +02001534 return ieee80211_reconfig(hw_to_local(hw));
1535}
Bob Copeland665af4f2009-01-19 11:20:53 -05001536
Johannes Bergc2d15602007-07-27 15:43:23 +02001537/* utility functions/constants */
1538extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001539u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001540 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001541int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Simon Wunderlich438b61b2013-07-08 16:55:51 +02001542 int rate, int erp, int short_preamble,
1543 int shift);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001544void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001545 struct ieee80211_hdr *hdr, const u8 *tsc,
1546 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001547void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1548 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001549void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1550 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001551
Johannes Berg55de9082012-07-26 17:24:39 +02001552void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1553 struct sk_buff *skb, int tid,
1554 enum ieee80211_band band);
1555
1556static inline void
1557ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1558 struct sk_buff *skb, int tid,
1559 enum ieee80211_band band)
1560{
1561 rcu_read_lock();
1562 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1563 rcu_read_unlock();
1564}
1565
1566static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1567 struct sk_buff *skb, int tid)
1568{
1569 struct ieee80211_chanctx_conf *chanctx_conf;
1570
1571 rcu_read_lock();
1572 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1573 if (WARN_ON(!chanctx_conf)) {
1574 rcu_read_unlock();
1575 kfree_skb(skb);
1576 return;
1577 }
1578
1579 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001580 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001581 rcu_read_unlock();
1582}
1583
1584static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001585 struct sk_buff *skb)
1586{
1587 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1588 ieee80211_tx_skb_tid(sdata, skb, 7);
1589}
1590
Johannes Berg35d865a2013-05-28 10:54:03 +02001591u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
Johannes Bergd91f36d2009-04-16 13:17:26 +02001592 struct ieee802_11_elems *elems,
1593 u64 filter, u32 crc);
Johannes Berg35d865a2013-05-28 10:54:03 +02001594static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1595 bool action,
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001596 struct ieee802_11_elems *elems)
1597{
Johannes Bergb2e506b2013-03-26 14:54:16 +01001598 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
Johannes Bergddc4db2e2013-03-27 14:55:31 +01001599}
1600
Kalle Valo520eb822008-12-18 23:35:27 +02001601void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1602void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1603void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001604void ieee80211_send_nullfunc(struct ieee80211_local *local,
1605 struct ieee80211_sub_if_data *sdata,
1606 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001607void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1608 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001609void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001610 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001611
Kalle Valoce7c9112008-12-18 23:35:20 +02001612void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001613 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001614 enum queue_stop_reason reason);
1615void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001616 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001617 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001618void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1619 enum queue_stop_reason reason);
1620void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1621 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001622void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001623void ieee80211_add_pending_skb(struct ieee80211_local *local,
1624 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001625void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1626 struct sk_buff_head *skbs,
1627 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001628static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1629 struct sk_buff_head *skbs)
1630{
1631 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1632}
Johannes Berg39ecc012013-02-13 12:11:00 +01001633void ieee80211_flush_queues(struct ieee80211_local *local,
1634 struct ieee80211_sub_if_data *sdata);
Kalle Valoce7c9112008-12-18 23:35:20 +02001635
Johannes Berg46900292009-02-15 12:44:28 +01001636void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001637 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001638 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001639 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1640 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001641void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1642 const u8 *bssid, u16 stype, u16 reason,
1643 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001644int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Bergc604b9f2012-11-29 12:45:18 +01001645 size_t buffer_len, const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001646 enum ieee80211_band band, u32 rate_mask,
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001647 struct cfg80211_chan_def *chandef);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001648struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001649 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001650 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001651 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001652 const u8 *ie, size_t ie_len,
1653 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001654void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001655 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001656 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001657 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001658 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001659
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001660u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
Johannes Berg46900292009-02-15 12:44:28 +01001661 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001662 enum ieee80211_band band, u32 *basic_rates);
Emmanuel Grumbach687da132013-10-01 16:45:43 +03001663int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1664 enum ieee80211_smps_mode smps_mode);
1665int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1666 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001667void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001668
Johannes Berg8e664fb2009-12-23 13:15:38 +01001669size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1670 const u8 *ids, int n_ids, size_t offset);
1671size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001672u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001673 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001674u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001675 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001676 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001677u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1678 u32 cap);
Simon Wunderlich2103dec2013-07-08 16:55:53 +02001679int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1680 const struct ieee80211_supported_band *sband,
1681 const u8 *srates, int srates_len, u32 *rates);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001682int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001683 struct sk_buff *skb, bool need_basic,
1684 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001685int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001686 struct sk_buff *skb, bool need_basic,
1687 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001688
Johannes Bergf444de02010-05-05 15:25:02 +02001689/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001690void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001691 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001692 struct cfg80211_chan_def *chandef);
Simon Wunderliche6b7cde2013-08-28 13:41:29 +02001693u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
Johannes Bergf444de02010-05-05 15:25:02 +02001694
Michal Kaziord01a1e62012-06-26 14:37:16 +02001695int __must_check
1696ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001697 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001698 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001699int __must_check
1700ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1701 const struct cfg80211_chan_def *chandef,
1702 u32 *changed);
Simon Wunderlich73da7d52013-07-11 16:09:06 +02001703/* NOTE: only use ieee80211_vif_change_channel() for channel switch */
1704int __must_check
1705ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
1706 const struct cfg80211_chan_def *chandef,
1707 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001708void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001709void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001710void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1711 bool clear);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001712
Johannes Berg04ecd252012-09-11 14:34:12 +02001713void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1714 struct ieee80211_chanctx *chanctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001715void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1716 struct ieee80211_chanctx *chanctx);
1717
1718void ieee80211_dfs_cac_timer(unsigned long data);
1719void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1720void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1721void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Johannes Berg04ecd252012-09-11 14:34:12 +02001722
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001723#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001724#define debug_noinline noinline
1725#else
1726#define debug_noinline
1727#endif
1728
Jiri Bencf0706e82007-05-05 11:45:53 -07001729#endif /* IEEE80211_I_H */