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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
Felix Fietkau12d3952f2012-03-18 22:58:06 +010056#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
57#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
Johannes Berg20ad19d2009-02-10 21:25:45 +010058
Johannes Berg1ea6f9c2012-10-24 10:59:25 +020059/* power level hasn't been configured (or set to automatic) */
60#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
61
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030062/*
63 * Some APs experience problems when working with U-APSD. Decrease the
64 * probability of that happening by using legacy mode for all ACs but VO.
65 * The AP that caused us trouble was a Cisco 4410N. It ignores our
66 * setting, and always treats non-VO ACs as legacy.
67 */
Kalle Valoab133152010-01-12 10:42:31 +020068#define IEEE80211_DEFAULT_UAPSD_QUEUES \
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030069 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
Kalle Valoab133152010-01-12 10:42:31 +020070
71#define IEEE80211_DEFAULT_MAX_SP_LEN \
72 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
73
Antonio Quartulli6ae16772012-09-07 13:28:52 +020074#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
75
Jiri Bencf0706e82007-05-05 11:45:53 -070076struct ieee80211_fragment_entry {
77 unsigned long first_frag_time;
78 unsigned int seq;
79 unsigned int rx_queue;
80 unsigned int last_frag;
81 unsigned int extra_len;
82 struct sk_buff_head skb_list;
83 int ccmp; /* Whether fragments were encrypted with CCMP */
84 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
85};
86
87
Johannes Bergc2b13452008-09-11 00:01:55 +020088struct ieee80211_bss {
Johannes Bergef429da2013-02-05 17:48:40 +010089 u32 device_ts_beacon, device_ts_presp;
Johannes Berg8c358bc2012-05-22 22:13:05 +020090
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030091 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020092 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010093
Jiri Bencf0706e82007-05-05 11:45:53 -070094#define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070097
Johannes Berg00d3f142009-02-10 21:26:00 +010098 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -030099 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100102 * otherwise, you probably don't want to use them.
103 */
104 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200105 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800106
107 /* Keep track of the corruption of the last beacon/probe response. */
108 u8 corrupt_data;
109
110 /* Keep track of what bits of information we have valid info for. */
111 u8 valid_data;
112};
113
114/**
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
118 *
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
121 */
122enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
125};
126
127/**
128 * enum ieee80211_valid_data_flags - BSS valid data flags
Paul Stewartfcff4f12012-02-23 17:59:53 -0800129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
132 *
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were recieved as a result of an un-corrupted
136 * beacon/probe response.
137 */
138enum ieee80211_bss_valid_data_flags {
Paul Stewartfcff4f12012-02-23 17:59:53 -0800139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700142};
143
Johannes Berg9ae54c82008-01-31 19:48:20 +0100144typedef unsigned __bitwise__ ieee80211_tx_result;
145#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146#define TX_DROP ((__force ieee80211_tx_result) 1u)
147#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
148
Johannes Berg5cf121c2008-02-25 16:27:43 +0100149#define IEEE80211_TX_UNICAST BIT(1)
150#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100151
Johannes Berg5cf121c2008-02-25 16:27:43 +0100152struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700153 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100154 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700158 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700159
Johannes Berg056cdd52008-03-26 23:21:47 +0100160 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100161};
162
163
164typedef unsigned __bitwise__ ieee80211_rx_result;
165#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
166#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
167#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
168#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
169
Johannes Berg554891e2010-09-24 12:38:25 +0200170/**
171 * enum ieee80211_packet_rx_flags - packet RX flags
172 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
173 * (incl. multicast frames)
Johannes Berg554891e2010-09-24 12:38:25 +0200174 * @IEEE80211_RX_FRAGMENTED: fragmented frame
175 * @IEEE80211_RX_AMSDU: a-MSDU packet
176 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100177 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200178 *
179 * These are per-frame flags that are attached to a frame in the
180 * @rx_flags field of &struct ieee80211_rx_status.
181 */
182enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200183 IEEE80211_RX_RA_MATCH = BIT(1),
184 IEEE80211_RX_FRAGMENTED = BIT(2),
185 IEEE80211_RX_AMSDU = BIT(3),
186 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100187 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200188};
189
190/**
191 * enum ieee80211_rx_flags - RX data flags
192 *
193 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100194 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
195 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200196 *
197 * These flags are used across handling multiple interfaces
198 * for a single frame.
199 */
200enum ieee80211_rx_flags {
201 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100202 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200203};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100204
205struct ieee80211_rx_data {
206 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100207 struct ieee80211_local *local;
208 struct ieee80211_sub_if_data *sdata;
209 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100210 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100211
Johannes Berg056cdd52008-03-26 23:21:47 +0100212 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200213
214 /*
215 * Index into sequence numbers array, 0..16
216 * since the last (16) is used for non-QoS,
217 * will be 16 on non-QoS frames.
218 */
219 int seqno_idx;
220
221 /*
222 * Index into the security IV/PN arrays, 0..16
223 * since the last (16) is used for CCMP-encrypted
224 * management frames, will be set to 16 on mgmt
225 * frames and 0 on non-QoS frames.
226 */
227 int security_idx;
228
Johannes Berg5cf121c2008-02-25 16:27:43 +0100229 u32 tkip_iv32;
230 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700231};
232
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100233struct beacon_data {
234 u8 *head, *tail;
235 int head_len, tail_len;
Johannes Berg88600202012-02-13 15:17:18 +0100236 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100237};
238
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300239struct probe_resp {
240 struct rcu_head rcu_head;
241 int len;
242 u8 data[0];
243};
244
Marco Porschd012a602012-10-10 12:39:50 -0700245struct ps_data {
246 /* yes, this looks ugly, but guarantees that we can later use
247 * bitmap_empty :)
248 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
249 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
250 struct sk_buff_head bc_buf;
251 atomic_t num_sta_ps; /* number of stations in PS mode */
252 int dtim_count;
253 bool dtim_bc_mc;
254};
255
Jiri Bencf0706e82007-05-05 11:45:53 -0700256struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200257 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300258 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700259
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400260 struct list_head vlans;
261
Marco Porschd012a602012-10-10 12:39:50 -0700262 struct ps_data ps;
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200263 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Jiri Bencf0706e82007-05-05 11:45:53 -0700264};
265
266struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700267 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100268 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700269};
270
271struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400272 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100273
274 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200275 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700276};
277
Luis Carlos Coboee385852008-02-23 15:17:11 +0100278struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700279 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
280 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
281 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100282 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
283 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700284 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100285};
286
287#define PREQ_Q_F_START 0x1
288#define PREQ_Q_F_REFRESH 0x2
289struct mesh_preq_queue {
290 struct list_head list;
291 u8 dst[ETH_ALEN];
292 u8 flags;
293};
294
Johannes Berg2eb278e2012-06-05 14:28:42 +0200295#if HZ/100 == 0
296#define IEEE80211_ROC_MIN_LEFT 1
297#else
298#define IEEE80211_ROC_MIN_LEFT (HZ/100)
299#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200300
Johannes Berg2eb278e2012-06-05 14:28:42 +0200301struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200302 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200303 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100304
Johannes Berg2eb278e2012-06-05 14:28:42 +0200305 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100306
307 struct ieee80211_sub_if_data *sdata;
308
Johannes Bergf679f652009-12-23 13:15:34 +0100309 struct ieee80211_channel *chan;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100310
Johannes Berg2eb278e2012-06-05 14:28:42 +0200311 bool started, abort, hw_begun, notified;
Johannes Berg3fbd45c2013-03-25 11:51:14 +0100312 bool to_be_freed;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200313
Johannes Berg2eb278e2012-06-05 14:28:42 +0200314 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100315
Johannes Berg2eb278e2012-06-05 14:28:42 +0200316 u32 duration, req_duration;
317 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200318 u64 cookie, mgmt_tx_cookie;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200319};
320
Johannes Berg46900292009-02-15 12:44:28 +0100321/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200322enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200323 IEEE80211_STA_BEACON_POLL = BIT(0),
324 IEEE80211_STA_CONNECTION_POLL = BIT(1),
325 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Berga8243b72012-11-22 14:32:09 +0100326 IEEE80211_STA_DISABLE_HT = BIT(4),
Johannes Bergb291ba12009-07-10 15:29:03 +0200327 IEEE80211_STA_CSA_RECEIVED = BIT(5),
328 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200329 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530330 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700331 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200332 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000333 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergf2d9d272012-11-22 14:11:39 +0100334 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
335 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
Johannes Bergab1faea2009-07-01 21:41:17 +0200336};
337
Johannes Berg66e67e42012-01-20 13:55:27 +0100338struct ieee80211_mgd_auth_data {
339 struct cfg80211_bss *bss;
340 unsigned long timeout;
341 int tries;
342 u16 algorithm, expected_transaction;
343
344 u8 key[WLAN_KEY_LEN_WEP104];
345 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100346 bool done;
Johannes Berg89afe612013-02-13 15:39:57 +0100347 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100348
Jouni Malinen6b8ece32012-09-30 19:29:40 +0300349 u16 sae_trans, sae_status;
350 size_t data_len;
351 u8 data[];
Johannes Berg66e67e42012-01-20 13:55:27 +0100352};
353
354struct ieee80211_mgd_assoc_data {
355 struct cfg80211_bss *bss;
356 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100357
358 unsigned long timeout;
359 int tries;
360
361 u16 capability;
362 u8 prev_bssid[ETH_ALEN];
363 u8 ssid[IEEE80211_MAX_SSID_LEN];
364 u8 ssid_len;
365 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100366 bool wmm, uapsd;
Emmanuel Grumbachc65dd142012-12-12 10:12:24 +0200367 bool have_beacon, need_beacon;
Johannes Berg66e67e42012-01-20 13:55:27 +0100368 bool synced;
Johannes Berg89afe612013-02-13 15:39:57 +0100369 bool timeout_started;
Johannes Berg66e67e42012-01-20 13:55:27 +0100370
Johannes Berg9dde6422012-05-16 23:43:19 +0200371 u8 ap_ht_param;
372
Johannes Bergb08fbbd2012-12-07 13:06:48 +0100373 struct ieee80211_vht_cap ap_vht_cap;
374
Johannes Berg66e67e42012-01-20 13:55:27 +0100375 size_t ie_len;
376 u8 ie[];
377};
378
Johannes Berg46900292009-02-15 12:44:28 +0100379struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100380 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200381 struct timer_list conn_mon_timer;
382 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530383 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200384 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530385 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200386 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200387 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100388
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100389 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200390 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300391 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100392 bool nullfunc_failed;
Johannes Berg682bd382013-01-29 13:13:50 +0100393 bool connection_loss;
Johannes Bergb291ba12009-07-10 15:29:03 +0200394
Johannes Berg77fdaa12009-07-07 03:45:17 +0200395 struct mutex mtx;
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100396 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100397 struct ieee80211_mgd_auth_data *auth_data;
398 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100399
Johannes Berg77fdaa12009-07-07 03:45:17 +0200400 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100401
Jiri Bencf0706e82007-05-05 11:45:53 -0700402 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700403
Johannes Berg5bb644a2009-05-17 11:40:42 +0200404 unsigned long timers_running; /* used for quiesce/restart */
Johannes Berg965beda2009-04-16 13:17:24 +0200405 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200406 bool broken_ap; /* AP is broken -- turn off powersave */
Johannes Berg826262c2012-12-10 16:38:14 +0200407 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100408 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200409 driver_smps_mode; /* smps mode request */
410
411 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200412
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400413 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700414
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300415 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200416 u32 beacon_crc;
417
Johannes Berg1672c0e32013-01-29 15:02:27 +0100418 bool status_acked;
419 bool status_received;
420 __le16 status_fc;
421
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200422 enum {
423 IEEE80211_MFP_DISABLED,
424 IEEE80211_MFP_OPTIONAL,
425 IEEE80211_MFP_REQUIRED
426 } mfp; /* management frame protection */
427
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200428 /*
429 * Bitmask of enabled u-apsd queues,
430 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
431 * to take effect.
432 */
433 unsigned int uapsd_queues;
434
435 /*
436 * Maximum number of buffered frames AP can deliver during a
437 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
438 * Needs a new association to take effect.
439 */
440 unsigned int uapsd_max_sp_len;
441
Jiri Bencf0706e82007-05-05 11:45:53 -0700442 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100443
444 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700445
Johannes Berg488dd7b2012-10-29 20:08:01 +0100446 u8 p2p_noa_index;
447
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700448 /* Signal strength from the last Beacon frame in the current BSS. */
449 int last_beacon_signal;
450
451 /*
452 * Weighted average of the signal strength from Beacon frames in the
453 * current BSS. This is in units of 1/16 of the signal unit to maintain
454 * accuracy and to speed up calculations, i.e., the value need to be
455 * divided by 16 to get the actual value.
456 */
457 int ave_beacon_signal;
458
459 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300460 * Number of Beacon frames used in ave_beacon_signal. This can be used
461 * to avoid generating less reliable cqm events that would be based
462 * only on couple of received frames.
463 */
464 unsigned int count_beacon_signal;
465
466 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700467 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
468 * that triggered a cqm event. 0 indicates that no event has been
469 * generated for the current association.
470 */
471 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700472
473 /*
474 * State variables for keeping track of RSSI of the AP currently
475 * connected to and informing driver when RSSI has gone
476 * below/above a certain threshold.
477 */
478 int rssi_min_thold, rssi_max_thold;
479 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800480
481 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
482 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700483};
484
Johannes Berg46900292009-02-15 12:44:28 +0100485struct ieee80211_if_ibss {
486 struct timer_list timer;
Johannes Berg46900292009-02-15 12:44:28 +0100487
Johannes Berg7a17a332010-07-21 11:30:27 +0200488 struct mutex mtx;
489
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200490 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200491
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300492 u32 basic_rates;
493
Johannes Berg5bb644a2009-05-17 11:40:42 +0200494 bool timer_running;
495
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200496 bool fixed_bssid;
497 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200498 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100499
Antonio Quartulli267335d2012-01-31 20:25:47 +0100500 bool control_port;
Will Hawkins6abe0562012-06-20 11:51:14 -0400501 unsigned int auth_frame_registrations;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100502
Felix Fietkau4d196e42012-03-01 11:23:37 +0100503 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200504 u8 ssid[IEEE80211_MAX_SSID_LEN];
505 u8 ssid_len, ie_len;
506 u8 *ie;
507 struct ieee80211_channel *channel;
Alexander Simon13c40c52011-11-30 16:56:34 +0100508 enum nl80211_channel_type channel_type;
Johannes Berg46900292009-02-15 12:44:28 +0100509
510 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200511 /* probe response/beacon for IBSS */
Johannes Berg40b275b2011-05-13 14:15:49 +0200512 struct sk_buff __rcu *presp;
513 struct sk_buff *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100514
Johannes Berg8bf11d82011-12-15 11:17:37 +0100515 spinlock_t incomplete_lock;
516 struct list_head incomplete_stations;
517
Johannes Berg46900292009-02-15 12:44:28 +0100518 enum {
519 IEEE80211_IBSS_MLME_SEARCH,
520 IEEE80211_IBSS_MLME_JOINED,
521 } state;
522};
523
Javier Cardonadbf498f2012-03-31 11:31:32 -0700524/**
525 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
526 *
527 * these declarations define the interface, which enables
528 * vendor-specific mesh synchronization
529 *
530 */
531struct ieee802_11_elems;
532struct ieee80211_mesh_sync_ops {
533 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
534 u16 stype,
535 struct ieee80211_mgmt *mgmt,
536 struct ieee802_11_elems *elems,
537 struct ieee80211_rx_status *rx_status);
538 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
539 /* add other framework functions here */
540};
541
Johannes Berg472dbc42008-09-11 00:01:49 +0200542struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200543 struct timer_list housekeeping_timer;
544 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000545 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200546
Johannes Berg5bb644a2009-05-17 11:40:42 +0200547 unsigned long timers_running;
548
Javier Cardona18889232009-08-10 12:15:52 -0700549 unsigned long wrkq_flags;
Johannes Berg472dbc42008-09-11 00:01:49 +0200550
551 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
552 size_t mesh_id_len;
553 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000554 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200555 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000556 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200557 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000558 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700559 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000560 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700561 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000562 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000563 /* Local mesh Sequence Number */
564 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200565 /* Last used PREQ ID */
566 u32 preq_id;
567 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000568 /* Timestamp of last SN update */
569 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800570 /* Time when it's ok to send next PERR */
571 unsigned long next_perr;
572 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200573 unsigned long last_preq;
574 struct mesh_rmc *rmc;
575 spinlock_t mesh_preq_queue_lock;
576 struct mesh_preq_queue preq_queue;
577 int preq_queue_len;
578 struct mesh_stats mshstats;
579 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700580 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200581 u32 mesh_seqnum;
582 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700583 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800584 struct beacon_data __rcu *beacon;
585 /* just protects beacon updates for now */
586 struct mutex mtx;
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;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700594 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200595 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700596 s64 sync_offset_clockdrift_max;
597 spinlock_t sync_offset_lock;
598 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100599 /* mesh power save */
600 enum nl80211_mesh_power_mode nonpeer_pm;
601 int ps_peers_light_sleep;
602 int ps_peers_deep_sleep;
603 struct ps_data ps;
Johannes Berg472dbc42008-09-11 00:01:49 +0200604};
Johannes Berg902acc72008-02-23 15:17:19 +0100605
606#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200607#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
608 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100609#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200610#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100611 do { } while (0)
612#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700613
Johannes Berg213cd112008-09-11 00:01:54 +0200614/**
615 * enum ieee80211_sub_if_data_flags - virtual interface flags
616 *
617 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
618 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200619 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
620 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
621 * associated stations and deliver multicast frames both
622 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200623 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100624 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200625 */
626enum ieee80211_sub_if_data_flags {
627 IEEE80211_SDATA_ALLMULTI = BIT(0),
628 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100629 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
630 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200631 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100632 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200633};
634
Johannes Berg34d4bc42010-08-27 12:35:58 +0200635/**
636 * enum ieee80211_sdata_state_bits - virtual interface state bits
637 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
638 * mirrors netif_running() but is separate for interface type
639 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200640 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
641 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100642 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
643 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200644 */
645enum ieee80211_sdata_state_bits {
646 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200647 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100648 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200649};
650
Michal Kaziord01a1e62012-06-26 14:37:16 +0200651/**
652 * enum ieee80211_chanctx_mode - channel context configuration mode
653 *
654 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
655 * multiple interfaces
656 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
657 * only by a single interface. This can be used for example for
658 * non-fixed channel IBSS.
659 */
660enum ieee80211_chanctx_mode {
661 IEEE80211_CHANCTX_SHARED,
662 IEEE80211_CHANCTX_EXCLUSIVE
663};
664
665struct ieee80211_chanctx {
666 struct list_head list;
667 struct rcu_head rcu_head;
668
669 enum ieee80211_chanctx_mode mode;
670 int refcount;
Johannes Berg8a61af62012-12-13 17:42:30 +0100671 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200672
673 struct ieee80211_chanctx_conf conf;
674};
675
Jiri Bencf0706e82007-05-05 11:45:53 -0700676struct ieee80211_sub_if_data {
677 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700678
679 struct wireless_dev wdev;
680
Johannes Berg11a843b2007-08-28 17:01:55 -0400681 /* keys */
682 struct list_head key_list;
683
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530684 /* count for keys needing tailroom space allocation */
685 int crypto_tx_tailroom_needed_cnt;
686
Jiri Bencf0706e82007-05-05 11:45:53 -0700687 struct net_device *dev;
688 struct ieee80211_local *local;
689
Jiri Slaby13262ff2007-08-28 17:01:54 -0400690 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200691
Johannes Berg34d4bc42010-08-27 12:35:58 +0200692 unsigned long state;
693
Jiri Bencf0706e82007-05-05 11:45:53 -0700694 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700695
Johannes Berg47846c92009-11-25 17:46:19 +0100696 char name[IFNAMSIZ];
697
Jiri Bencf0706e82007-05-05 11:45:53 -0700698 /* Fragment table for host-based reassembly */
699 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
700 unsigned int fragment_next;
701
Simon Wunderlichb53be792011-11-18 14:20:44 +0100702 /* TID bitmap for NoAck policy */
703 u16 noack_map;
704
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300705 /* bit field of ACM bits (BIT(802.1D tag)) */
706 u8 wmm_acm;
707
Johannes Berg40b275b2011-05-13 14:15:49 +0200708 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
709 struct ieee80211_key __rcu *default_unicast_key;
710 struct ieee80211_key __rcu *default_multicast_key;
711 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700712
Johannes Berg94778282008-10-10 13:21:59 +0200713 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300714 __be16 control_port_protocol;
715 bool control_port_no_encrypt;
Johannes Berg94778282008-10-10 13:21:59 +0200716
Johannes Berg54bcbc62012-03-28 11:04:25 +0200717 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300718
Johannes Berg04ecd252012-09-11 14:34:12 +0200719 /* used to reconfigure hardware SM PS */
720 struct work_struct recalc_smps;
721
Johannes Berg64592c82010-06-10 10:21:31 +0200722 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200723 struct sk_buff_head skb_queue;
724
Johannes Berg04ecd252012-09-11 14:34:12 +0200725 u8 needed_rx_chains;
726 enum ieee80211_smps_mode smps_mode;
727
Johannes Berg1ea6f9c2012-10-24 10:59:25 +0200728 int user_power_level; /* in dBm */
729 int ap_power_level; /* in dBm */
730
Simon Wunderlich164eb022013-02-08 18:16:20 +0100731 bool radar_required;
732 struct delayed_work dfs_cac_timer_work;
733
Johannes Berg3e122be2008-07-09 14:40:34 +0200734 /*
735 * AP this belongs to: self in AP mode and
736 * corresponding AP in VLAN mode, NULL for
737 * all others (might be needed later in IBSS)
738 */
739 struct ieee80211_if_ap *bss;
740
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200741 /* bitmap of allowed (non-MCS) rate indexes for rate control */
742 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100743 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700744
745 union {
746 struct ieee80211_if_ap ap;
747 struct ieee80211_if_wds wds;
748 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100749 struct ieee80211_if_managed mgd;
750 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200751 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100752 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700753 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700754
Johannes Berg97f97b12012-12-13 22:54:58 +0100755 spinlock_t cleanup_stations_lock;
756 struct list_head cleanup_stations;
757 struct work_struct cleanup_stations_wk;
758
Jiri Bence9f207f2007-05-05 11:46:38 -0700759#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300760 struct {
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100761 struct dentry *dir;
Ben Greear295bafb2010-09-22 20:29:01 -0700762 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100763 struct dentry *default_unicast_key;
764 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200765 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100766 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700767#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100768
769#ifdef CONFIG_PM
770 struct ieee80211_bss_conf suspend_bss_conf;
771#endif
772
Johannes Berg32bfd352007-12-19 01:31:26 +0100773 /* must be last, dynamically sized area in this! */
774 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700775};
776
Johannes Berg32bfd352007-12-19 01:31:26 +0100777static inline
778struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
779{
780 return container_of(p, struct ieee80211_sub_if_data, vif);
781}
782
Johannes Berg55de9082012-07-26 17:24:39 +0200783static inline enum ieee80211_band
784ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
785{
786 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
787 struct ieee80211_chanctx_conf *chanctx_conf;
788
789 rcu_read_lock();
790 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
791 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100792 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200793 rcu_read_unlock();
794
795 return band;
796}
797
Johannes Bergc1475ca2010-06-10 10:21:37 +0200798enum sdata_queue_type {
799 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
800 IEEE80211_SDATA_QUEUE_AGG_START = 1,
801 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
802};
803
Jiri Bencf0706e82007-05-05 11:45:53 -0700804enum {
805 IEEE80211_RX_MSG = 1,
806 IEEE80211_TX_STATUS_MSG = 2,
Johannes Berg37fbd902011-09-29 16:04:39 +0200807 IEEE80211_EOSP_MSG = 3,
808};
809
810struct skb_eosp_msg_data {
811 u8 sta[ETH_ALEN], iface[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700812};
813
Kalle Valoce7c9112008-12-18 23:35:20 +0200814enum queue_stop_reason {
815 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200816 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100817 IEEE80211_QUEUE_STOP_REASON_CSA,
818 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100819 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200820 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600821 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Kalle Valoce7c9112008-12-18 23:35:20 +0200822};
823
Luciano Coelho65a65382010-12-21 16:02:17 +0200824#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100825struct tpt_led_trigger {
826 struct led_trigger trig;
827 char name[32];
828 const struct ieee80211_tpt_blink *blink_table;
829 unsigned int blink_table_len;
830 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100831 unsigned long prev_traffic;
832 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100833 unsigned int active, want;
834 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100835};
Luciano Coelho65a65382010-12-21 16:02:17 +0200836#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100837
Helmut Schaa142b9f52009-07-23 13:18:01 +0200838/**
839 * mac80211 scan flags - currently active scan mode
840 *
841 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
842 * well be on the operating channel
843 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
844 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700845 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
846 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200847 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
848 * that the scan completed.
849 * @SCAN_ABORTED: Set for our scan work function when the driver reported
850 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200851 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200852enum {
853 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200854 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700855 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200856 SCAN_COMPLETED,
857 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200858};
859
860/**
861 * enum mac80211_scan_state - scan state machine states
862 *
863 * @SCAN_DECISION: Main entry point to the scan state machine, this state
864 * determines if we should keep on scanning or switch back to the
865 * operating channel
866 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
867 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100868 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
869 * send out data
870 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -0700871 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200872 */
873enum mac80211_scan_state {
874 SCAN_DECISION,
875 SCAN_SET_CHANNEL,
876 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100877 SCAN_SUSPEND,
878 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -0700879 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200880};
881
Jiri Bencf0706e82007-05-05 11:45:53 -0700882struct ieee80211_local {
883 /* embed the driver visible part.
884 * don't cast (use the static inlines below), but we keep
885 * it first anyway so they become a no-op */
886 struct ieee80211_hw hw;
887
888 const struct ieee80211_ops *ops;
889
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400890 /*
891 * private workqueue to mac80211. mac80211 makes this accessible
892 * via ieee80211_queue_work()
893 */
894 struct workqueue_struct *workqueue;
895
Johannes Berge4e72fb2009-03-23 17:28:42 +0100896 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100897 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200898 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100899
Jiri Bencf0706e82007-05-05 11:45:53 -0700900 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100901 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100902 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200903 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
904 fif_probe_req;
905 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400906 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200907
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300908 bool wiphy_ciphers_allocated;
909
Johannes Bergfe57d9f2012-07-26 14:55:08 +0200910 bool use_chanctx;
911
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200912 /* protects the aggregated multicast list and filter calls */
913 spinlock_t filter_lock;
914
Johannes Berg3ac64be2009-08-17 16:16:53 +0200915 /* used for uploading changed mc list */
916 struct work_struct reconfig_filter;
917
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200918 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000919 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200920
Johannes Bergd0709a62008-02-25 16:27:46 +0100921 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200922
923 /*
924 * suspended is true if we finished all the suspend _and_ we have
925 * not yet come up from resume. This is to be used by mac80211
926 * to ensure driver sanity during suspend and mac80211's own
927 * sanity. It can eventually be used for WoW as well.
928 */
929 bool suspended;
930
931 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100932 * Resuming is true while suspended, but when we're reprogramming the
933 * hardware -- at that time it's allowed to use ieee80211_queue_work()
934 * again even though some other parts of the stack are still suspended
935 * and we still drop received frames to avoid waking the stack.
936 */
937 bool resuming;
938
939 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200940 * quiescing is true during the suspend process _only_ to
941 * ease timer cancelling etc.
942 */
943 bool quiescing;
944
Johannes Bergea77f122009-08-21 14:44:45 +0200945 /* device is started */
946 bool started;
947
Arik Nemtsov04800ad2012-06-06 11:25:02 +0300948 /* device is during a HW reconfig */
949 bool in_reconfig;
950
Johannes Bergeecc4802011-05-04 15:37:29 +0200951 /* wowlan is enabled -- don't reconfig on resume */
952 bool wowlan;
953
Simon Wunderlich164eb022013-02-08 18:16:20 +0100954 /* DFS/radar detection is enabled */
955 bool radar_detect_enabled;
956 struct work_struct radar_detected_work;
957
Johannes Berg04ecd252012-09-11 14:34:12 +0200958 /* number of RX chains the hardware has */
959 u8 rx_chains;
960
Johannes Bergb306f452007-07-10 19:32:08 +0200961 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700962
Jiri Bencf0706e82007-05-05 11:45:53 -0700963 /* Tasklet and skb queue to process calls from IRQ mode. All frames
964 * added to skb_queue will be processed, but frames in
965 * skb_queue_unreliable may be dropped if the total length of these
966 * queues increases over the limit. */
967#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
968 struct tasklet_struct tasklet;
969 struct sk_buff_head skb_queue;
970 struct sk_buff_head skb_queue_unreliable;
971
Christian Lamparterf9e124f2013-02-04 17:44:44 +0000972 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +0100973
Johannes Bergd0709a62008-02-25 16:27:46 +0100974 /* Station data */
975 /*
Johannes Berg4d339602011-12-15 11:24:20 +0100976 * The mutex only protects the list, hash table and
977 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +0100978 */
Johannes Berg34e89502010-02-03 13:59:58 +0100979 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +0100980 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +0100981 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +0100982 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +0200983 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -0700984 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200985 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -0700986
Johannes Berg2a577d92009-03-23 17:28:37 +0100987 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700988 struct tasklet_struct tx_pending_tasklet;
989
Johannes Berga6a67db2010-06-10 10:21:41 +0200990 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100991
Johannes Berg53918992007-09-26 15:19:47 +0200992 /* number of interfaces with corresponding IFF_ flags */
993 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700994
995 struct rate_control_ref *rate_ctrl;
996
Felix Fietkau5f9f1812011-03-25 21:39:19 +0100997 struct crypto_cipher *wep_tx_tfm;
998 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -0700999 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -07001000
Johannes Bergc771c9d2009-01-23 22:54:03 +01001001 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -04001002 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +01001003 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -04001004
Johannes Bergb16bd152008-04-11 21:40:35 +02001005 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +02001006 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +02001007 * key pointers (write access, they're RCU.)
1008 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001009 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001010
Johannes Berga1699b72010-07-30 16:46:07 +02001011 /* mutex for scan and work locking */
1012 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001013
Johannes Bergc2b13452008-09-11 00:01:55 +02001014 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001015 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001016 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001017 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001018 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Johannes Berg2a519312009-02-10 21:25:55 +01001019 struct ieee80211_channel *scan_channel;
Johannes Berg4d36ec582009-10-27 20:59:55 +01001020 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001021 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001022 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001023 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001024
Luciano Coelho85a99942011-05-12 16:28:29 +03001025 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001026 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001027
Helmut Schaadf13cce2010-02-24 14:19:21 +01001028 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001029 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001030 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001031 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001032 struct ieee80211_channel *csa_channel;
1033 /* For backward compatibility only -- do not use */
1034 struct ieee80211_channel *_oper_channel;
Johannes Berg0aaffa92010-05-05 15:28:27 +02001035 enum nl80211_channel_type _oper_channel_type;
Jiri Bencf0706e82007-05-05 11:45:53 -07001036
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001037 /* Temporary remain-on-channel for off-channel operations */
1038 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001039
Michal Kaziord01a1e62012-06-26 14:37:16 +02001040 /* channel contexts */
1041 struct list_head chanctx_list;
1042 struct mutex chanctx_mtx;
1043
Jiri Bencf0706e82007-05-05 11:45:53 -07001044 /* SNMP counters */
1045 /* dot11CountersTable */
1046 u32 dot11TransmittedFragmentCount;
1047 u32 dot11MulticastTransmittedFrameCount;
1048 u32 dot11FailedCount;
1049 u32 dot11RetryCount;
1050 u32 dot11MultipleRetryCount;
1051 u32 dot11FrameDuplicateCount;
1052 u32 dot11ReceivedFragmentCount;
1053 u32 dot11MulticastReceivedFrameCount;
1054 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001055
1056#ifdef CONFIG_MAC80211_LEDS
1057 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001058 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001059 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001060 char tx_led_name[32], rx_led_name[32],
1061 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001062#endif
1063
Jiri Bencf0706e82007-05-05 11:45:53 -07001064#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1065 /* TX/RX handler statistics */
1066 unsigned int tx_handlers_drop;
1067 unsigned int tx_handlers_queued;
1068 unsigned int tx_handlers_drop_unencrypted;
1069 unsigned int tx_handlers_drop_fragment;
1070 unsigned int tx_handlers_drop_wep;
1071 unsigned int tx_handlers_drop_not_assoc;
1072 unsigned int tx_handlers_drop_unauth_port;
1073 unsigned int rx_handlers_drop;
1074 unsigned int rx_handlers_queued;
1075 unsigned int rx_handlers_drop_nullfunc;
1076 unsigned int rx_handlers_drop_defrag;
1077 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001078 unsigned int tx_expand_skb_head;
1079 unsigned int tx_expand_skb_head_cloned;
1080 unsigned int rx_expand_skb_head;
1081 unsigned int rx_expand_skb_head2;
1082 unsigned int rx_handlers_fragments;
1083 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001084#define I802_DEBUG_INC(c) (c)++
1085#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1086#define I802_DEBUG_INC(c) do { } while (0)
1087#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1088
1089
Jiri Bencf0706e82007-05-05 11:45:53 -07001090 int total_ps_buffered; /* total number of all buffered unicast and
1091 * multicast packets for power saving stations
1092 */
Kalle Valo520eb822008-12-18 23:35:27 +02001093
Kalle Valo572e0012009-02-10 17:09:31 +02001094 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001095 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001096 /*
1097 * PS can only be enabled when we have exactly one managed
1098 * interface (and monitors) in PS, this then points there.
1099 */
1100 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001101 struct work_struct dynamic_ps_enable_work;
1102 struct work_struct dynamic_ps_disable_work;
1103 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001104 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001105 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001106 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001107
Juuso Oikarinenff616382010-06-09 09:51:52 +03001108 /*
1109 * The dynamic ps timeout configured from user space via WEXT -
1110 * this will override whatever chosen by mac80211 internally.
1111 */
1112 int dynamic_ps_forced_timeout;
1113
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001114 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001115
Johannes Berg0f782312009-12-01 13:37:02 +01001116 enum ieee80211_smps_mode smps_mode;
1117
Johannes Bergf2753dd2009-04-14 10:09:24 +02001118 struct work_struct restart_work;
1119
Jiri Bence9f207f2007-05-05 11:46:38 -07001120#ifdef CONFIG_MAC80211_DEBUGFS
1121 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001122 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001123 struct dentry *keys;
1124 } debugfs;
1125#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001126
Johannes Berg2eb278e2012-06-05 14:28:42 +02001127 /*
1128 * Remain-on-channel support
1129 */
1130 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001131 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001132 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001133 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001134
Johannes Berga729cff2011-11-06 14:13:34 +01001135 struct idr ack_status_frames;
1136 spinlock_t ack_status_lock;
1137
Johannes Bergf142c6b2012-06-18 20:07:15 +02001138 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1139
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001140 /* dummy netdev for use w/ NAPI */
1141 struct net_device napi_dev;
1142
1143 struct napi_struct napi;
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001144
1145 /* virtual monitor interface */
1146 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001147 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001148};
1149
Johannes Berg3e122be2008-07-09 14:40:34 +02001150static inline struct ieee80211_sub_if_data *
1151IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1152{
Johannes Berg3e122be2008-07-09 14:40:34 +02001153 return netdev_priv(dev);
1154}
1155
Johannes Berg71bbc992012-06-15 15:30:18 +02001156static inline struct ieee80211_sub_if_data *
1157IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1158{
1159 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1160}
1161
Johannes Bergc1475ca2010-06-10 10:21:37 +02001162/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001163struct ieee80211_ra_tid {
1164 u8 ra[ETH_ALEN];
1165 u16 tid;
1166};
1167
Johannes Bergdd769862011-11-18 16:54:50 +01001168/* Parsed Information Elements */
1169struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001170 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001171 size_t total_len;
1172
1173 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001174 const u8 *ssid;
1175 const u8 *supp_rates;
1176 const u8 *fh_params;
1177 const u8 *ds_params;
1178 const u8 *cf_params;
1179 const struct ieee80211_tim_ie *tim;
1180 const u8 *ibss_params;
1181 const u8 *challenge;
1182 const u8 *rsn;
1183 const u8 *erp_info;
1184 const u8 *ext_supp_rates;
1185 const u8 *wmm_info;
1186 const u8 *wmm_param;
1187 const struct ieee80211_ht_cap *ht_cap_elem;
1188 const struct ieee80211_ht_operation *ht_operation;
1189 const struct ieee80211_vht_cap *vht_cap_elem;
1190 const struct ieee80211_vht_operation *vht_operation;
1191 const struct ieee80211_meshconf_ie *mesh_config;
1192 const u8 *mesh_id;
1193 const u8 *peering;
1194 const __le16 *awake_window;
1195 const u8 *preq;
1196 const u8 *prep;
1197 const u8 *perr;
1198 const struct ieee80211_rann_ie *rann;
1199 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1200 const u8 *country_elem;
1201 const u8 *pwr_constr_elem;
1202 const u8 *quiet_elem; /* first quite element */
1203 const u8 *timeout_int;
1204 const u8 *opmode_notif;
Johannes Bergdd769862011-11-18 16:54:50 +01001205
1206 /* length of them, respectively */
1207 u8 ssid_len;
1208 u8 supp_rates_len;
1209 u8 fh_params_len;
1210 u8 ds_params_len;
1211 u8 cf_params_len;
1212 u8 tim_len;
1213 u8 ibss_params_len;
1214 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001215 u8 rsn_len;
1216 u8 erp_info_len;
1217 u8 ext_supp_rates_len;
1218 u8 wmm_info_len;
1219 u8 wmm_param_len;
1220 u8 mesh_id_len;
1221 u8 peering_len;
1222 u8 preq_len;
1223 u8 prep_len;
1224 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001225 u8 country_elem_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001226 u8 quiet_elem_len;
1227 u8 num_of_quiet_elem; /* can be more the one */
1228 u8 timeout_int_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001229
1230 /* whether a parse error occurred while retrieving these elements */
1231 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001232};
1233
Jiri Bencf0706e82007-05-05 11:45:53 -07001234static inline struct ieee80211_local *hw_to_local(
1235 struct ieee80211_hw *hw)
1236{
1237 return container_of(hw, struct ieee80211_local, hw);
1238}
1239
Jiri Bencf0706e82007-05-05 11:45:53 -07001240
Johannes Berg571ecf62007-07-27 15:43:22 +02001241static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1242{
Joe Perchesb203ca32012-05-08 18:56:52 +00001243 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001244 is_broadcast_ether_addr(raddr);
1245}
1246
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001247static inline bool
1248ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1249{
1250 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1251 status->flag & RX_FLAG_MACTIME_END);
1252 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1253}
Johannes Berg571ecf62007-07-27 15:43:22 +02001254
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001255u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1256 struct ieee80211_rx_status *status,
1257 unsigned int mpdu_len,
1258 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001259int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001260void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001261void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1262 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001263void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001264u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001265
Johannes Berg46900292009-02-15 12:44:28 +01001266/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001267void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001268int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1269 struct cfg80211_auth_request *req);
1270int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1271 struct cfg80211_assoc_request *req);
1272int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001273 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001274int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001275 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001276void ieee80211_send_pspoll(struct ieee80211_local *local,
1277 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001278void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001279void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001280int ieee80211_max_network_latency(struct notifier_block *nb,
1281 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001282int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg4a3cb702013-02-12 16:43:19 +01001283void
1284ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1285 const struct ieee80211_channel_sw_ie *sw_elem,
1286 struct ieee80211_bss *bss, u64 timestamp);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001287void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1288void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001289void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1290void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1291 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001292void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001293void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001294void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001295void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1296 __le16 fc, bool acked);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001297
Johannes Berg46900292009-02-15 12:44:28 +01001298/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001299void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1300void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001301void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1302 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001303int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1304 struct cfg80211_ibss_params *params);
1305int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001306void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1307void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001308void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1309void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1310 struct sk_buff *skb);
1311
1312/* mesh code */
1313void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1314void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1315 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001316
Johannes Berg9c6bd792008-09-11 00:01:52 +02001317/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001318void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001319int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1320 const u8 *ssid, u8 ssid_len,
1321 struct ieee80211_channel *chan);
Johannes Bergc2b13452008-09-11 00:01:55 +02001322int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001323 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001324void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001325void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001326void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001327
Johannes Berg0a51b272008-09-08 17:44:25 +02001328void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001329struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001330ieee80211_bss_info_update(struct ieee80211_local *local,
1331 struct ieee80211_rx_status *rx_status,
1332 struct ieee80211_mgmt *mgmt,
1333 size_t len,
1334 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001335 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001336void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001337 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001338
Luciano Coelho79f460c2011-05-11 17:09:36 +03001339/* scheduled scan handling */
1340int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1341 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001342int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1343void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001344
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001345/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001346void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1347void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001348void ieee80211_roc_setup(struct ieee80211_local *local);
1349void ieee80211_start_next_roc(struct ieee80211_local *local);
1350void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
Johannes Berg3fbd45c2013-03-25 11:51:14 +01001351void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001352void ieee80211_sw_roc_work(struct work_struct *work);
1353void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001354
Johannes Berg3e122be2008-07-09 14:40:34 +02001355/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001356int ieee80211_iface_init(void);
1357void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001358int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001359 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001360 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001361int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001362 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001363void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001364void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg382a1032013-03-22 22:30:09 +01001365u32 ieee80211_idle_off(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001366void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001367void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1368 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001369int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1370void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001371
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001372bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1373void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1374
Johannes Berg9607e6b2009-12-23 13:15:31 +01001375static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1376{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001377 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001378}
1379
Johannes Berge2ebc742007-07-27 15:43:22 +02001380/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001381void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1382void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001383netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1384 struct net_device *dev);
1385netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1386 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001387void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1388 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001389
Johannes Bergde1ede72008-09-09 14:42:50 +02001390/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001391void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1392 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001393bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001394 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001395 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001396 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001397void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1398 const u8 *da, u16 tid,
1399 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001400int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1401 enum ieee80211_smps_mode smps, const u8 *da,
1402 const u8 *bssid);
Johannes Bergd1f5b7a2010-08-05 17:05:55 +02001403void ieee80211_request_smps_work(struct work_struct *work);
Johannes Bergde1ede72008-09-09 14:42:50 +02001404
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001405void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001406 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001407void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001408 u16 initiator, u16 reason, bool stop);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001409void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1410 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001411void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1412 struct sta_info *sta,
1413 struct ieee80211_mgmt *mgmt, size_t len);
1414void ieee80211_process_addba_resp(struct ieee80211_local *local,
1415 struct sta_info *sta,
1416 struct ieee80211_mgmt *mgmt,
1417 size_t len);
1418void ieee80211_process_addba_request(struct ieee80211_local *local,
1419 struct sta_info *sta,
1420 struct ieee80211_mgmt *mgmt,
1421 size_t len);
1422
Johannes Berg849b7962009-02-10 21:25:54 +01001423int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001424 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001425int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001426 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001427void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1428void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001429void ieee80211_ba_session_work(struct work_struct *work);
1430void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001431void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001432
Johannes Berg04ecd252012-09-11 14:34:12 +02001433u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1434
Mahesh Palivela818255e2012-10-10 11:33:04 +00001435/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001436void
1437ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1438 struct ieee80211_supported_band *sband,
1439 const struct ieee80211_vht_cap *vht_cap_ie,
1440 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001441enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001442void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Johannes Berg0af83d32012-12-27 18:55:36 +01001443void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1444 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001445 enum ieee80211_band band, bool nss_only);
Johannes Berg4a342152013-02-07 11:58:58 +01001446
Johannes Berg39192c02008-09-09 14:49:03 +02001447/* Spectrum management */
1448void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1449 struct ieee80211_mgmt *mgmt,
1450 size_t len);
1451
Johannes Bergf2753dd2009-04-14 10:09:24 +02001452/* Suspend/resume and hw reconfiguration */
1453int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001454void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001455
Johannes Bergeecc4802011-05-04 15:37:29 +02001456int __ieee80211_suspend(struct ieee80211_hw *hw,
1457 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001458
1459static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1460{
John W. Linville85f72bc2010-09-01 16:12:28 -04001461 struct ieee80211_local *local = hw_to_local(hw);
1462
1463 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1464 "%s: resume with hardware scan still in progress\n",
1465 wiphy_name(hw->wiphy));
1466
Johannes Bergf2753dd2009-04-14 10:09:24 +02001467 return ieee80211_reconfig(hw_to_local(hw));
1468}
Bob Copeland665af4f2009-01-19 11:20:53 -05001469
Johannes Bergc2d15602007-07-27 15:43:23 +02001470/* utility functions/constants */
1471extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001472u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001473 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001474int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Johannes Bergc2d15602007-07-27 15:43:23 +02001475 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001476void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001477 struct ieee80211_hdr *hdr, const u8 *tsc,
1478 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001479void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1480 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001481void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1482 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001483
Johannes Berg55de9082012-07-26 17:24:39 +02001484void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1485 struct sk_buff *skb, int tid,
1486 enum ieee80211_band band);
1487
1488static inline void
1489ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1490 struct sk_buff *skb, int tid,
1491 enum ieee80211_band band)
1492{
1493 rcu_read_lock();
1494 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1495 rcu_read_unlock();
1496}
1497
1498static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1499 struct sk_buff *skb, int tid)
1500{
1501 struct ieee80211_chanctx_conf *chanctx_conf;
1502
1503 rcu_read_lock();
1504 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1505 if (WARN_ON(!chanctx_conf)) {
1506 rcu_read_unlock();
1507 kfree_skb(skb);
1508 return;
1509 }
1510
1511 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001512 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001513 rcu_read_unlock();
1514}
1515
1516static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001517 struct sk_buff *skb)
1518{
1519 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1520 ieee80211_tx_skb_tid(sdata, skb, 7);
1521}
1522
Johannes Berg9c6bd792008-09-11 00:01:52 +02001523void ieee802_11_parse_elems(u8 *start, size_t len,
1524 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001525u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1526 struct ieee802_11_elems *elems,
1527 u64 filter, u32 crc);
Johannes Berg881d9482009-01-21 15:13:48 +01001528u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001529 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001530
Kalle Valo520eb822008-12-18 23:35:27 +02001531void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1532void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1533void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001534void ieee80211_send_nullfunc(struct ieee80211_local *local,
1535 struct ieee80211_sub_if_data *sdata,
1536 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001537void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1538 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001539void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001540 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001541
Kalle Valoce7c9112008-12-18 23:35:20 +02001542void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1543 enum queue_stop_reason reason);
1544void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1545 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001546void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1547 enum queue_stop_reason reason);
1548void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1549 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001550void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001551void ieee80211_add_pending_skb(struct ieee80211_local *local,
1552 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001553void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1554 struct sk_buff_head *skbs,
1555 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001556static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1557 struct sk_buff_head *skbs)
1558{
1559 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1560}
Kalle Valoce7c9112008-12-18 23:35:20 +02001561
Johannes Berg46900292009-02-15 12:44:28 +01001562void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001563 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001564 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001565 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1566 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001567void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1568 const u8 *bssid, u16 stype, u16 reason,
1569 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001570int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Bergc604b9f2012-11-29 12:45:18 +01001571 size_t buffer_len, const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001572 enum ieee80211_band band, u32 rate_mask,
1573 u8 channel);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001574struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001575 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001576 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001577 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001578 const u8 *ie, size_t ie_len,
1579 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001580void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001581 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001582 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001583 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001584 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001585
1586void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1587 const size_t supp_rates_len,
1588 const u8 *supp_rates);
1589u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1590 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001591 enum ieee80211_band band, u32 *basic_rates);
Johannes Berg0f782312009-12-01 13:37:02 +01001592int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1593 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001594void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001595
Johannes Berg8e664fb2009-12-23 13:15:38 +01001596size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1597 const u8 *ids, int n_ids, size_t offset);
1598size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001599u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001600 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001601u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001602 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001603 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001604u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1605 u32 cap);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001606int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001607 struct sk_buff *skb, bool need_basic,
1608 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001609int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001610 struct sk_buff *skb, bool need_basic,
1611 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001612
Johannes Bergf444de02010-05-05 15:25:02 +02001613/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001614void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001615 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001616 struct cfg80211_chan_def *chandef);
Johannes Bergf444de02010-05-05 15:25:02 +02001617
Michal Kaziord01a1e62012-06-26 14:37:16 +02001618int __must_check
1619ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001620 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001621 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001622int __must_check
1623ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1624 const struct cfg80211_chan_def *chandef,
1625 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001626void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001627void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001628void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1629 bool clear);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001630
Johannes Berg04ecd252012-09-11 14:34:12 +02001631void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1632 struct ieee80211_chanctx *chanctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001633void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1634 struct ieee80211_chanctx *chanctx);
1635
1636void ieee80211_dfs_cac_timer(unsigned long data);
1637void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1638void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1639void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Johannes Berg04ecd252012-09-11 14:34:12 +02001640
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001641#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001642#define debug_noinline noinline
1643#else
1644#define debug_noinline
1645#endif
1646
Jiri Bencf0706e82007-05-05 11:45:53 -07001647#endif /* IEEE80211_I_H */