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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 Berg77fdaa12009-07-07 03:45:17 +0200312
Johannes Berg2eb278e2012-06-05 14:28:42 +0200313 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100314
Johannes Berg2eb278e2012-06-05 14:28:42 +0200315 u32 duration, req_duration;
316 struct sk_buff *frame;
Johannes Berg50febf62012-10-26 16:13:06 +0200317 u64 cookie, mgmt_tx_cookie;
Ilan Peerd339d5c2013-02-12 09:34:13 +0200318 enum ieee80211_roc_type type;
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 Berg965beda2009-04-16 13:17:24 +0200404 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200405 bool broken_ap; /* AP is broken -- turn off powersave */
Johannes Berg826262c2012-12-10 16:38:14 +0200406 u8 dtim_period;
Johannes Berg0f782312009-12-01 13:37:02 +0100407 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200408 driver_smps_mode; /* smps mode request */
409
410 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200411
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400412 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700413
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300414 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200415 u32 beacon_crc;
416
Johannes Berg1672c0e32013-01-29 15:02:27 +0100417 bool status_acked;
418 bool status_received;
419 __le16 status_fc;
420
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200421 enum {
422 IEEE80211_MFP_DISABLED,
423 IEEE80211_MFP_OPTIONAL,
424 IEEE80211_MFP_REQUIRED
425 } mfp; /* management frame protection */
426
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200427 /*
428 * Bitmask of enabled u-apsd queues,
429 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
430 * to take effect.
431 */
432 unsigned int uapsd_queues;
433
434 /*
435 * Maximum number of buffered frames AP can deliver during a
436 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
437 * Needs a new association to take effect.
438 */
439 unsigned int uapsd_max_sp_len;
440
Jiri Bencf0706e82007-05-05 11:45:53 -0700441 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100442
443 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700444
Johannes Berg488dd7b2012-10-29 20:08:01 +0100445 u8 p2p_noa_index;
446
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700447 /* Signal strength from the last Beacon frame in the current BSS. */
448 int last_beacon_signal;
449
450 /*
451 * Weighted average of the signal strength from Beacon frames in the
452 * current BSS. This is in units of 1/16 of the signal unit to maintain
453 * accuracy and to speed up calculations, i.e., the value need to be
454 * divided by 16 to get the actual value.
455 */
456 int ave_beacon_signal;
457
458 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300459 * Number of Beacon frames used in ave_beacon_signal. This can be used
460 * to avoid generating less reliable cqm events that would be based
461 * only on couple of received frames.
462 */
463 unsigned int count_beacon_signal;
464
465 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700466 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
467 * that triggered a cqm event. 0 indicates that no event has been
468 * generated for the current association.
469 */
470 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700471
472 /*
473 * State variables for keeping track of RSSI of the AP currently
474 * connected to and informing driver when RSSI has gone
475 * below/above a certain threshold.
476 */
477 int rssi_min_thold, rssi_max_thold;
478 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800479
480 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
481 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Johannes Bergdd5ecfe2013-02-21 17:40:19 +0100482 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
483 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700484};
485
Johannes Berg46900292009-02-15 12:44:28 +0100486struct ieee80211_if_ibss {
487 struct timer_list timer;
Johannes Berg46900292009-02-15 12:44:28 +0100488
Johannes Berg7a17a332010-07-21 11:30:27 +0200489 struct mutex mtx;
490
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200491 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200492
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300493 u32 basic_rates;
494
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200495 bool fixed_bssid;
496 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200497 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100498
Antonio Quartulli267335d2012-01-31 20:25:47 +0100499 bool control_port;
Will Hawkins6abe0562012-06-20 11:51:14 -0400500 unsigned int auth_frame_registrations;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100501
Felix Fietkau4d196e42012-03-01 11:23:37 +0100502 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200503 u8 ssid[IEEE80211_MAX_SSID_LEN];
504 u8 ssid_len, ie_len;
505 u8 *ie;
506 struct ieee80211_channel *channel;
Alexander Simon13c40c52011-11-30 16:56:34 +0100507 enum nl80211_channel_type channel_type;
Johannes Berg46900292009-02-15 12:44:28 +0100508
509 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200510 /* probe response/beacon for IBSS */
Johannes Berg40b275b2011-05-13 14:15:49 +0200511 struct sk_buff __rcu *presp;
512 struct sk_buff *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100513
Johannes Berg8bf11d82011-12-15 11:17:37 +0100514 spinlock_t incomplete_lock;
515 struct list_head incomplete_stations;
516
Johannes Berg46900292009-02-15 12:44:28 +0100517 enum {
518 IEEE80211_IBSS_MLME_SEARCH,
519 IEEE80211_IBSS_MLME_JOINED,
520 } state;
521};
522
Javier Cardonadbf498f2012-03-31 11:31:32 -0700523/**
524 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
525 *
526 * these declarations define the interface, which enables
527 * vendor-specific mesh synchronization
528 *
529 */
530struct ieee802_11_elems;
531struct ieee80211_mesh_sync_ops {
532 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
533 u16 stype,
534 struct ieee80211_mgmt *mgmt,
535 struct ieee802_11_elems *elems,
536 struct ieee80211_rx_status *rx_status);
537 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
538 /* add other framework functions here */
539};
540
Johannes Berg472dbc42008-09-11 00:01:49 +0200541struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200542 struct timer_list housekeeping_timer;
543 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000544 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200545
Javier Cardona18889232009-08-10 12:15:52 -0700546 unsigned long wrkq_flags;
Johannes Berg472dbc42008-09-11 00:01:49 +0200547
548 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
549 size_t mesh_id_len;
550 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000551 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200552 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000553 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200554 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000555 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700556 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000557 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700558 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000559 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000560 /* Local mesh Sequence Number */
561 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200562 /* Last used PREQ ID */
563 u32 preq_id;
564 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000565 /* Timestamp of last SN update */
566 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800567 /* Time when it's ok to send next PERR */
568 unsigned long next_perr;
569 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200570 unsigned long last_preq;
571 struct mesh_rmc *rmc;
572 spinlock_t mesh_preq_queue_lock;
573 struct mesh_preq_queue preq_queue;
574 int preq_queue_len;
575 struct mesh_stats mshstats;
576 struct mesh_config mshcfg;
Ashok Nagarajan1258d972012-10-09 13:27:47 -0700577 atomic_t estab_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200578 u32 mesh_seqnum;
579 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700580 int num_gates;
Thomas Pedersen2b5e1962013-02-14 11:20:13 -0800581 struct beacon_data __rcu *beacon;
582 /* just protects beacon updates for now */
583 struct mutex mtx;
Javier Cardona581a8b02011-04-07 15:08:27 -0700584 const u8 *ie;
585 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700586 enum {
587 IEEE80211_MESH_SEC_NONE = 0x0,
588 IEEE80211_MESH_SEC_AUTHED = 0x1,
589 IEEE80211_MESH_SEC_SECURED = 0x2,
590 } security;
Thomas Pedersena6dad6a2013-03-04 13:06:12 -0800591 bool user_mpm;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700592 /* Extensible Synchronization Framework */
Johannes Berg8ba7acf2012-09-30 17:07:19 +0200593 const struct ieee80211_mesh_sync_ops *sync_ops;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700594 s64 sync_offset_clockdrift_max;
595 spinlock_t sync_offset_lock;
596 bool adjusting_tbtt;
Marco Porsch3f52b7e2013-01-30 18:14:08 +0100597 /* mesh power save */
598 enum nl80211_mesh_power_mode nonpeer_pm;
599 int ps_peers_light_sleep;
600 int ps_peers_deep_sleep;
601 struct ps_data ps;
Johannes Berg472dbc42008-09-11 00:01:49 +0200602};
Johannes Berg902acc72008-02-23 15:17:19 +0100603
604#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200605#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
606 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100607#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200608#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100609 do { } while (0)
610#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700611
Johannes Berg213cd112008-09-11 00:01:54 +0200612/**
613 * enum ieee80211_sub_if_data_flags - virtual interface flags
614 *
615 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
616 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200617 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
618 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
619 * associated stations and deliver multicast frames both
620 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200621 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100622 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200623 */
624enum ieee80211_sub_if_data_flags {
625 IEEE80211_SDATA_ALLMULTI = BIT(0),
626 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100627 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
628 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200629 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100630 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200631};
632
Johannes Berg34d4bc42010-08-27 12:35:58 +0200633/**
634 * enum ieee80211_sdata_state_bits - virtual interface state bits
635 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
636 * mirrors netif_running() but is separate for interface type
637 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200638 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
639 * mode, so queues are stopped
Johannes Bergd6a83222012-12-14 14:06:28 +0100640 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
641 * to offchannel, reset when offchannel returns
Johannes Berg34d4bc42010-08-27 12:35:58 +0200642 */
643enum ieee80211_sdata_state_bits {
644 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200645 SDATA_STATE_OFFCHANNEL,
Johannes Bergd6a83222012-12-14 14:06:28 +0100646 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200647};
648
Michal Kaziord01a1e62012-06-26 14:37:16 +0200649/**
650 * enum ieee80211_chanctx_mode - channel context configuration mode
651 *
652 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
653 * multiple interfaces
654 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
655 * only by a single interface. This can be used for example for
656 * non-fixed channel IBSS.
657 */
658enum ieee80211_chanctx_mode {
659 IEEE80211_CHANCTX_SHARED,
660 IEEE80211_CHANCTX_EXCLUSIVE
661};
662
663struct ieee80211_chanctx {
664 struct list_head list;
665 struct rcu_head rcu_head;
666
667 enum ieee80211_chanctx_mode mode;
668 int refcount;
Johannes Berg8a61af62012-12-13 17:42:30 +0100669 bool driver_present;
Michal Kaziord01a1e62012-06-26 14:37:16 +0200670
671 struct ieee80211_chanctx_conf conf;
672};
673
Jiri Bencf0706e82007-05-05 11:45:53 -0700674struct ieee80211_sub_if_data {
675 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700676
677 struct wireless_dev wdev;
678
Johannes Berg11a843b2007-08-28 17:01:55 -0400679 /* keys */
680 struct list_head key_list;
681
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530682 /* count for keys needing tailroom space allocation */
683 int crypto_tx_tailroom_needed_cnt;
Johannes Berg8d1f7ec2013-02-23 00:59:03 +0100684 int crypto_tx_tailroom_pending_dec;
685 struct delayed_work dec_tailroom_needed_wk;
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530686
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 {
Ben Greear295bafb2010-09-22 20:29:01 -0700761 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100762 struct dentry *default_unicast_key;
763 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200764 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100765 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700766#endif
Johannes Berg529ba6e2012-12-13 17:16:45 +0100767
Johannes Berg32bfd352007-12-19 01:31:26 +0100768 /* must be last, dynamically sized area in this! */
769 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700770};
771
Johannes Berg32bfd352007-12-19 01:31:26 +0100772static inline
773struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
774{
775 return container_of(p, struct ieee80211_sub_if_data, vif);
776}
777
Johannes Berg55de9082012-07-26 17:24:39 +0200778static inline enum ieee80211_band
779ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
780{
781 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
782 struct ieee80211_chanctx_conf *chanctx_conf;
783
784 rcu_read_lock();
785 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
786 if (!WARN_ON(!chanctx_conf))
Johannes Berg4bf88532012-11-09 11:39:59 +0100787 band = chanctx_conf->def.chan->band;
Johannes Berg55de9082012-07-26 17:24:39 +0200788 rcu_read_unlock();
789
790 return band;
791}
792
Johannes Bergc1475ca2010-06-10 10:21:37 +0200793enum sdata_queue_type {
794 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
795 IEEE80211_SDATA_QUEUE_AGG_START = 1,
796 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
797};
798
Jiri Bencf0706e82007-05-05 11:45:53 -0700799enum {
800 IEEE80211_RX_MSG = 1,
801 IEEE80211_TX_STATUS_MSG = 2,
802};
803
Kalle Valoce7c9112008-12-18 23:35:20 +0200804enum queue_stop_reason {
805 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200806 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100807 IEEE80211_QUEUE_STOP_REASON_CSA,
808 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100809 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200810 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Seth Forshee6c17b772013-02-11 11:21:07 -0600811 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
Johannes Berg445ea4e2013-02-13 12:25:28 +0100812 IEEE80211_QUEUE_STOP_REASON_FLUSH,
Kalle Valoce7c9112008-12-18 23:35:20 +0200813};
814
Luciano Coelho65a65382010-12-21 16:02:17 +0200815#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100816struct tpt_led_trigger {
817 struct led_trigger trig;
818 char name[32];
819 const struct ieee80211_tpt_blink *blink_table;
820 unsigned int blink_table_len;
821 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100822 unsigned long prev_traffic;
823 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100824 unsigned int active, want;
825 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100826};
Luciano Coelho65a65382010-12-21 16:02:17 +0200827#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100828
Helmut Schaa142b9f52009-07-23 13:18:01 +0200829/**
830 * mac80211 scan flags - currently active scan mode
831 *
832 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
833 * well be on the operating channel
834 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
835 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700836 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
837 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200838 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
839 * that the scan completed.
840 * @SCAN_ABORTED: Set for our scan work function when the driver reported
841 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200842 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200843enum {
844 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200845 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700846 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200847 SCAN_COMPLETED,
848 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200849};
850
851/**
852 * enum mac80211_scan_state - scan state machine states
853 *
854 * @SCAN_DECISION: Main entry point to the scan state machine, this state
855 * determines if we should keep on scanning or switch back to the
856 * operating channel
857 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
858 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100859 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
860 * send out data
861 * @SCAN_RESUME: Resume the scan and scan the next channel
Sam Lefflercd2bb512012-10-11 21:03:35 -0700862 * @SCAN_ABORT: Abort the scan and go back to operating channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200863 */
864enum mac80211_scan_state {
865 SCAN_DECISION,
866 SCAN_SET_CHANNEL,
867 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100868 SCAN_SUSPEND,
869 SCAN_RESUME,
Sam Lefflercd2bb512012-10-11 21:03:35 -0700870 SCAN_ABORT,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200871};
872
Jiri Bencf0706e82007-05-05 11:45:53 -0700873struct ieee80211_local {
874 /* embed the driver visible part.
875 * don't cast (use the static inlines below), but we keep
876 * it first anyway so they become a no-op */
877 struct ieee80211_hw hw;
878
879 const struct ieee80211_ops *ops;
880
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400881 /*
882 * private workqueue to mac80211. mac80211 makes this accessible
883 * via ieee80211_queue_work()
884 */
885 struct workqueue_struct *workqueue;
886
Johannes Berge4e72fb2009-03-23 17:28:42 +0100887 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100888 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200889 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100890
Jiri Bencf0706e82007-05-05 11:45:53 -0700891 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100892 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100893 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200894 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
895 fif_probe_req;
896 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400897 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200898
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300899 bool wiphy_ciphers_allocated;
900
Johannes Bergfe57d9f2012-07-26 14:55:08 +0200901 bool use_chanctx;
902
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200903 /* protects the aggregated multicast list and filter calls */
904 spinlock_t filter_lock;
905
Johannes Berg3ac64be2009-08-17 16:16:53 +0200906 /* used for uploading changed mc list */
907 struct work_struct reconfig_filter;
908
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200909 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000910 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200911
Johannes Bergd0709a62008-02-25 16:27:46 +0100912 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200913
914 /*
915 * suspended is true if we finished all the suspend _and_ we have
916 * not yet come up from resume. This is to be used by mac80211
917 * to ensure driver sanity during suspend and mac80211's own
918 * sanity. It can eventually be used for WoW as well.
919 */
920 bool suspended;
921
922 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100923 * Resuming is true while suspended, but when we're reprogramming the
924 * hardware -- at that time it's allowed to use ieee80211_queue_work()
925 * again even though some other parts of the stack are still suspended
926 * and we still drop received frames to avoid waking the stack.
927 */
928 bool resuming;
929
930 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200931 * quiescing is true during the suspend process _only_ to
932 * ease timer cancelling etc.
933 */
934 bool quiescing;
935
Johannes Bergea77f122009-08-21 14:44:45 +0200936 /* device is started */
937 bool started;
938
Arik Nemtsov04800ad2012-06-06 11:25:02 +0300939 /* device is during a HW reconfig */
940 bool in_reconfig;
941
Johannes Bergeecc4802011-05-04 15:37:29 +0200942 /* wowlan is enabled -- don't reconfig on resume */
943 bool wowlan;
944
Simon Wunderlich164eb022013-02-08 18:16:20 +0100945 /* DFS/radar detection is enabled */
946 bool radar_detect_enabled;
947 struct work_struct radar_detected_work;
948
Johannes Berg04ecd252012-09-11 14:34:12 +0200949 /* number of RX chains the hardware has */
950 u8 rx_chains;
951
Johannes Bergb306f452007-07-10 19:32:08 +0200952 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700953
Jiri Bencf0706e82007-05-05 11:45:53 -0700954 /* Tasklet and skb queue to process calls from IRQ mode. All frames
955 * added to skb_queue will be processed, but frames in
956 * skb_queue_unreliable may be dropped if the total length of these
957 * queues increases over the limit. */
958#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
959 struct tasklet_struct tasklet;
960 struct sk_buff_head skb_queue;
961 struct sk_buff_head skb_queue_unreliable;
962
Christian Lamparterf9e124f2013-02-04 17:44:44 +0000963 spinlock_t rx_path_lock;
Christian Lamparter24a8fda2010-12-30 17:25:29 +0100964
Johannes Bergd0709a62008-02-25 16:27:46 +0100965 /* Station data */
966 /*
Johannes Berg4d339602011-12-15 11:24:20 +0100967 * The mutex only protects the list, hash table and
968 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +0100969 */
Johannes Berg34e89502010-02-03 13:59:58 +0100970 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +0100971 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +0100972 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +0100973 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +0200974 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -0700975 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200976 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -0700977
Johannes Berg2a577d92009-03-23 17:28:37 +0100978 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700979 struct tasklet_struct tx_pending_tasklet;
980
Johannes Berga6a67db2010-06-10 10:21:41 +0200981 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100982
Johannes Berg53918992007-09-26 15:19:47 +0200983 /* number of interfaces with corresponding IFF_ flags */
984 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700985
986 struct rate_control_ref *rate_ctrl;
987
Felix Fietkau5f9f1812011-03-25 21:39:19 +0100988 struct crypto_cipher *wep_tx_tfm;
989 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -0700990 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700991
Johannes Bergc771c9d2009-01-23 22:54:03 +0100992 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400993 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100994 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400995
Johannes Bergb16bd152008-04-11 21:40:35 +0200996 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +0200997 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +0200998 * key pointers (write access, they're RCU.)
999 */
Johannes Bergad0e2b52010-06-01 10:19:19 +02001000 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001001
Johannes Berga1699b72010-07-30 16:46:07 +02001002 /* mutex for scan and work locking */
1003 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +02001004
Johannes Bergc2b13452008-09-11 00:01:55 +02001005 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +02001006 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +01001007 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +02001008 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec52009-10-27 20:59:55 +01001009 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Johannes Berg2a519312009-02-10 21:25:55 +01001010 struct ieee80211_channel *scan_channel;
Johannes Berg4d36ec52009-10-27 20:59:55 +01001011 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -07001012 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +02001013 int scan_ies_len;
Johannes Bergc604b9f2012-11-29 12:45:18 +01001014 int hw_scan_ies_bufsize;
Johannes Berg8318d782008-01-24 19:38:38 +01001015
Luciano Coelho85a99942011-05-12 16:28:29 +03001016 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +02001017 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Luciano Coelho79f460c2011-05-11 17:09:36 +03001018
Helmut Schaadf13cce2010-02-24 14:19:21 +01001019 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +02001020 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -07001021 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +02001022 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg55de9082012-07-26 17:24:39 +02001023 struct ieee80211_channel *csa_channel;
1024 /* For backward compatibility only -- do not use */
1025 struct ieee80211_channel *_oper_channel;
Johannes Berg0aaffa92010-05-05 15:28:27 +02001026 enum nl80211_channel_type _oper_channel_type;
Jiri Bencf0706e82007-05-05 11:45:53 -07001027
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001028 /* Temporary remain-on-channel for off-channel operations */
1029 struct ieee80211_channel *tmp_channel;
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001030
Michal Kaziord01a1e62012-06-26 14:37:16 +02001031 /* channel contexts */
1032 struct list_head chanctx_list;
1033 struct mutex chanctx_mtx;
1034
Jiri Bencf0706e82007-05-05 11:45:53 -07001035 /* SNMP counters */
1036 /* dot11CountersTable */
1037 u32 dot11TransmittedFragmentCount;
1038 u32 dot11MulticastTransmittedFrameCount;
1039 u32 dot11FailedCount;
1040 u32 dot11RetryCount;
1041 u32 dot11MultipleRetryCount;
1042 u32 dot11FrameDuplicateCount;
1043 u32 dot11ReceivedFragmentCount;
1044 u32 dot11MulticastReceivedFrameCount;
1045 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001046
1047#ifdef CONFIG_MAC80211_LEDS
1048 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001049 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001050 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001051 char tx_led_name[32], rx_led_name[32],
1052 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001053#endif
1054
Jiri Bencf0706e82007-05-05 11:45:53 -07001055#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1056 /* TX/RX handler statistics */
1057 unsigned int tx_handlers_drop;
1058 unsigned int tx_handlers_queued;
1059 unsigned int tx_handlers_drop_unencrypted;
1060 unsigned int tx_handlers_drop_fragment;
1061 unsigned int tx_handlers_drop_wep;
1062 unsigned int tx_handlers_drop_not_assoc;
1063 unsigned int tx_handlers_drop_unauth_port;
1064 unsigned int rx_handlers_drop;
1065 unsigned int rx_handlers_queued;
1066 unsigned int rx_handlers_drop_nullfunc;
1067 unsigned int rx_handlers_drop_defrag;
1068 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001069 unsigned int tx_expand_skb_head;
1070 unsigned int tx_expand_skb_head_cloned;
1071 unsigned int rx_expand_skb_head;
1072 unsigned int rx_expand_skb_head2;
1073 unsigned int rx_handlers_fragments;
1074 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001075#define I802_DEBUG_INC(c) (c)++
1076#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1077#define I802_DEBUG_INC(c) do { } while (0)
1078#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1079
1080
Jiri Bencf0706e82007-05-05 11:45:53 -07001081 int total_ps_buffered; /* total number of all buffered unicast and
1082 * multicast packets for power saving stations
1083 */
Kalle Valo520eb822008-12-18 23:35:27 +02001084
Kalle Valo572e0012009-02-10 17:09:31 +02001085 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001086 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001087 /*
1088 * PS can only be enabled when we have exactly one managed
1089 * interface (and monitors) in PS, this then points there.
1090 */
1091 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001092 struct work_struct dynamic_ps_enable_work;
1093 struct work_struct dynamic_ps_disable_work;
1094 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001095 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001096 struct notifier_block ifa_notifier;
Johannes Berga65240c2013-01-14 15:14:34 +01001097 struct notifier_block ifa6_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001098
Juuso Oikarinenff616382010-06-09 09:51:52 +03001099 /*
1100 * The dynamic ps timeout configured from user space via WEXT -
1101 * this will override whatever chosen by mac80211 internally.
1102 */
1103 int dynamic_ps_forced_timeout;
1104
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001105 int user_power_level; /* in dBm, for all interfaces */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001106
Johannes Berg0f782312009-12-01 13:37:02 +01001107 enum ieee80211_smps_mode smps_mode;
1108
Johannes Bergf2753dd2009-04-14 10:09:24 +02001109 struct work_struct restart_work;
1110
Jiri Bence9f207f2007-05-05 11:46:38 -07001111#ifdef CONFIG_MAC80211_DEBUGFS
1112 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001113 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001114 struct dentry *keys;
1115 } debugfs;
1116#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001117
Johannes Berg2eb278e2012-06-05 14:28:42 +02001118 /*
1119 * Remain-on-channel support
1120 */
1121 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001122 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001123 unsigned long hw_roc_start_time;
Johannes Berg50febf62012-10-26 16:13:06 +02001124 u64 roc_cookie_counter;
Johannes Berg21f83582010-12-18 17:20:47 +01001125
Johannes Berga729cff2011-11-06 14:13:34 +01001126 struct idr ack_status_frames;
1127 spinlock_t ack_status_lock;
1128
Johannes Bergf142c6b2012-06-18 20:07:15 +02001129 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1130
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001131 /* virtual monitor interface */
1132 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Johannes Berg4bf88532012-11-09 11:39:59 +01001133 struct cfg80211_chan_def monitor_chandef;
Jiri Bencf0706e82007-05-05 11:45:53 -07001134};
1135
Johannes Berg3e122be2008-07-09 14:40:34 +02001136static inline struct ieee80211_sub_if_data *
1137IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1138{
Johannes Berg3e122be2008-07-09 14:40:34 +02001139 return netdev_priv(dev);
1140}
1141
Johannes Berg71bbc992012-06-15 15:30:18 +02001142static inline struct ieee80211_sub_if_data *
1143IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1144{
1145 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1146}
1147
Johannes Bergc1475ca2010-06-10 10:21:37 +02001148/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001149struct ieee80211_ra_tid {
1150 u8 ra[ETH_ALEN];
1151 u16 tid;
1152};
1153
Johannes Bergdd769862011-11-18 16:54:50 +01001154/* Parsed Information Elements */
1155struct ieee802_11_elems {
Johannes Berg4a3cb702013-02-12 16:43:19 +01001156 const u8 *ie_start;
Johannes Bergdd769862011-11-18 16:54:50 +01001157 size_t total_len;
1158
1159 /* pointers to IEs */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001160 const u8 *ssid;
1161 const u8 *supp_rates;
1162 const u8 *fh_params;
1163 const u8 *ds_params;
1164 const u8 *cf_params;
1165 const struct ieee80211_tim_ie *tim;
1166 const u8 *ibss_params;
1167 const u8 *challenge;
1168 const u8 *rsn;
1169 const u8 *erp_info;
1170 const u8 *ext_supp_rates;
1171 const u8 *wmm_info;
1172 const u8 *wmm_param;
1173 const struct ieee80211_ht_cap *ht_cap_elem;
1174 const struct ieee80211_ht_operation *ht_operation;
1175 const struct ieee80211_vht_cap *vht_cap_elem;
1176 const struct ieee80211_vht_operation *vht_operation;
1177 const struct ieee80211_meshconf_ie *mesh_config;
1178 const u8 *mesh_id;
1179 const u8 *peering;
1180 const __le16 *awake_window;
1181 const u8 *preq;
1182 const u8 *prep;
1183 const u8 *perr;
1184 const struct ieee80211_rann_ie *rann;
1185 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1186 const u8 *country_elem;
1187 const u8 *pwr_constr_elem;
1188 const u8 *quiet_elem; /* first quite element */
1189 const u8 *timeout_int;
1190 const u8 *opmode_notif;
Johannes Bergdd769862011-11-18 16:54:50 +01001191
1192 /* length of them, respectively */
1193 u8 ssid_len;
1194 u8 supp_rates_len;
1195 u8 fh_params_len;
1196 u8 ds_params_len;
1197 u8 cf_params_len;
1198 u8 tim_len;
1199 u8 ibss_params_len;
1200 u8 challenge_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001201 u8 rsn_len;
1202 u8 erp_info_len;
1203 u8 ext_supp_rates_len;
1204 u8 wmm_info_len;
1205 u8 wmm_param_len;
1206 u8 mesh_id_len;
1207 u8 peering_len;
1208 u8 preq_len;
1209 u8 prep_len;
1210 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001211 u8 country_elem_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001212 u8 quiet_elem_len;
1213 u8 num_of_quiet_elem; /* can be more the one */
1214 u8 timeout_int_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001215
1216 /* whether a parse error occurred while retrieving these elements */
1217 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001218};
1219
Jiri Bencf0706e82007-05-05 11:45:53 -07001220static inline struct ieee80211_local *hw_to_local(
1221 struct ieee80211_hw *hw)
1222{
1223 return container_of(hw, struct ieee80211_local, hw);
1224}
1225
Jiri Bencf0706e82007-05-05 11:45:53 -07001226
Johannes Berg571ecf62007-07-27 15:43:22 +02001227static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1228{
Joe Perchesb203ca32012-05-08 18:56:52 +00001229 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001230 is_broadcast_ether_addr(raddr);
1231}
1232
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001233static inline bool
1234ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1235{
1236 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1237 status->flag & RX_FLAG_MACTIME_END);
1238 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1239}
Johannes Berg571ecf62007-07-27 15:43:22 +02001240
Thomas Pedersenf4bda332012-11-13 10:46:27 -08001241u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1242 struct ieee80211_rx_status *status,
1243 unsigned int mpdu_len,
1244 unsigned int mpdu_offset);
Johannes Berge8975582008-10-09 12:18:51 +02001245int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001246void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001247void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1248 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001249void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001250u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001251
Johannes Berg46900292009-02-15 12:44:28 +01001252/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001253void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001254int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1255 struct cfg80211_auth_request *req);
1256int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1257 struct cfg80211_assoc_request *req);
1258int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001259 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001260int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001261 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001262void ieee80211_send_pspoll(struct ieee80211_local *local,
1263 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001264void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001265void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001266int ieee80211_max_network_latency(struct notifier_block *nb,
1267 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001268int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Berg4a3cb702013-02-12 16:43:19 +01001269void
1270ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1271 const struct ieee80211_channel_sw_ie *sw_elem,
1272 struct ieee80211_bss *bss, u64 timestamp);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001273void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1274void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1275 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001276void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001277void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001278void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg1672c0e32013-01-29 15:02:27 +01001279void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1280 __le16 fc, bool acked);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001281
Johannes Berg46900292009-02-15 12:44:28 +01001282/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001283void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1284void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001285void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1286 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001287int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1288 struct cfg80211_ibss_params *params);
1289int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001290void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1291void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1292 struct sk_buff *skb);
1293
1294/* mesh code */
1295void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1296void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1297 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001298
Johannes Berg9c6bd792008-09-11 00:01:52 +02001299/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001300void ieee80211_scan_work(struct work_struct *work);
Stanislaw Gruszka34bcf712012-12-11 10:48:23 +01001301int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1302 const u8 *ssid, u8 ssid_len,
1303 struct ieee80211_channel *chan);
Johannes Bergc2b13452008-09-11 00:01:55 +02001304int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001305 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001306void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001307void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001308void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001309
Johannes Berg0a51b272008-09-08 17:44:25 +02001310void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001311struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001312ieee80211_bss_info_update(struct ieee80211_local *local,
1313 struct ieee80211_rx_status *rx_status,
1314 struct ieee80211_mgmt *mgmt,
1315 size_t len,
1316 struct ieee802_11_elems *elems,
Emmanuel Grumbachd45c4172012-12-10 16:19:13 +02001317 struct ieee80211_channel *channel);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001318void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001319 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001320
Luciano Coelho79f460c2011-05-11 17:09:36 +03001321/* scheduled scan handling */
1322int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1323 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001324int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1325void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001326
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001327/* off-channel helpers */
Stanislaw Gruszkaaacde9e2012-12-20 14:41:18 +01001328void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1329void ieee80211_offchannel_return(struct ieee80211_local *local);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001330void ieee80211_roc_setup(struct ieee80211_local *local);
1331void ieee80211_start_next_roc(struct ieee80211_local *local);
1332void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1333void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1334void ieee80211_sw_roc_work(struct work_struct *work);
1335void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001336
Johannes Berg3e122be2008-07-09 14:40:34 +02001337/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001338int ieee80211_iface_init(void);
1339void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001340int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001341 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001342 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001343int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001344 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001345void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001346void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001347void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001348void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1349 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001350int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1351void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001352
Johannes Berg1ea6f9c2012-10-24 10:59:25 +02001353bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1354void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1355
Johannes Berg9607e6b2009-12-23 13:15:31 +01001356static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1357{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001358 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001359}
1360
Johannes Berge2ebc742007-07-27 15:43:22 +02001361/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001362void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1363void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001364netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1365 struct net_device *dev);
1366netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1367 struct net_device *dev);
Felix Fietkau1f98ab72012-11-10 03:44:14 +01001368void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1369 struct sk_buff_head *skbs);
Johannes Berge2ebc742007-07-27 15:43:22 +02001370
Johannes Bergde1ede72008-09-09 14:42:50 +02001371/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001372void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1373 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001374bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
Ben Greearef96a8422011-11-18 11:32:00 -08001375 struct ieee80211_supported_band *sband,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001376 const struct ieee80211_ht_cap *ht_cap_ie,
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001377 struct sta_info *sta);
Johannes Bergb8695a82009-02-10 21:25:46 +01001378void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1379 const u8 *da, u16 tid,
1380 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001381int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1382 enum ieee80211_smps_mode smps, const u8 *da,
1383 const u8 *bssid);
Johannes Bergd1f5b7a2010-08-05 17:05:55 +02001384void ieee80211_request_smps_work(struct work_struct *work);
Johannes Bergde1ede72008-09-09 14:42:50 +02001385
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001386void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001387 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001388void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001389 u16 initiator, u16 reason, bool stop);
Johannes Bergc82c4a82012-07-18 13:31:31 +02001390void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1391 enum ieee80211_agg_stop_reason reason);
Johannes Bergde1ede72008-09-09 14:42:50 +02001392void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1393 struct sta_info *sta,
1394 struct ieee80211_mgmt *mgmt, size_t len);
1395void ieee80211_process_addba_resp(struct ieee80211_local *local,
1396 struct sta_info *sta,
1397 struct ieee80211_mgmt *mgmt,
1398 size_t len);
1399void ieee80211_process_addba_request(struct ieee80211_local *local,
1400 struct sta_info *sta,
1401 struct ieee80211_mgmt *mgmt,
1402 size_t len);
1403
Johannes Berg849b7962009-02-10 21:25:54 +01001404int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001405 enum ieee80211_agg_stop_reason reason);
Johannes Berg67c282c2010-06-10 10:21:43 +02001406int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Bergc82c4a82012-07-18 13:31:31 +02001407 enum ieee80211_agg_stop_reason reason);
Johannes Berg5d22c892010-06-10 10:21:40 +02001408void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1409void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001410void ieee80211_ba_session_work(struct work_struct *work);
1411void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001412void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001413
Johannes Berg04ecd252012-09-11 14:34:12 +02001414u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1415
Mahesh Palivela818255e2012-10-10 11:33:04 +00001416/* VHT */
Johannes Berg4a3cb702013-02-12 16:43:19 +01001417void
1418ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1419 struct ieee80211_supported_band *sband,
1420 const struct ieee80211_vht_cap *vht_cap_ie,
1421 struct sta_info *sta);
Johannes Berge1a0c6b2013-02-07 11:47:44 +01001422enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
Johannes Berg8921d042012-12-27 18:26:42 +01001423void ieee80211_sta_set_rx_nss(struct sta_info *sta);
Johannes Berg0af83d32012-12-27 18:55:36 +01001424void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1425 struct sta_info *sta, u8 opmode,
Johannes Bergbee7f582013-02-07 22:24:55 +01001426 enum ieee80211_band band, bool nss_only);
Johannes Bergdd5ecfe2013-02-21 17:40:19 +01001427void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1428 struct ieee80211_sta_vht_cap *vht_cap);
Johannes Berg4a342152013-02-07 11:58:58 +01001429
Johannes Berg39192c02008-09-09 14:49:03 +02001430/* Spectrum management */
1431void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1432 struct ieee80211_mgmt *mgmt,
1433 size_t len);
1434
Johannes Bergf2753dd2009-04-14 10:09:24 +02001435/* Suspend/resume and hw reconfiguration */
1436int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001437void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001438
Johannes Bergeecc4802011-05-04 15:37:29 +02001439int __ieee80211_suspend(struct ieee80211_hw *hw,
1440 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001441
1442static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1443{
John W. Linville85f72bc2010-09-01 16:12:28 -04001444 struct ieee80211_local *local = hw_to_local(hw);
1445
1446 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1447 "%s: resume with hardware scan still in progress\n",
1448 wiphy_name(hw->wiphy));
1449
Johannes Bergf2753dd2009-04-14 10:09:24 +02001450 return ieee80211_reconfig(hw_to_local(hw));
1451}
Bob Copeland665af4f2009-01-19 11:20:53 -05001452
Johannes Bergc2d15602007-07-27 15:43:23 +02001453/* utility functions/constants */
1454extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001455u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001456 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001457int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Johannes Bergc2d15602007-07-27 15:43:23 +02001458 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001459void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001460 struct ieee80211_hdr *hdr, const u8 *tsc,
1461 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001462void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1463 bool bss_notify);
Johannes Berg55de9082012-07-26 17:24:39 +02001464void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1465 enum ieee80211_band band);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001466
Johannes Berg55de9082012-07-26 17:24:39 +02001467void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1468 struct sk_buff *skb, int tid,
1469 enum ieee80211_band band);
1470
1471static inline void
1472ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1473 struct sk_buff *skb, int tid,
1474 enum ieee80211_band band)
1475{
1476 rcu_read_lock();
1477 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1478 rcu_read_unlock();
1479}
1480
1481static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1482 struct sk_buff *skb, int tid)
1483{
1484 struct ieee80211_chanctx_conf *chanctx_conf;
1485
1486 rcu_read_lock();
1487 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1488 if (WARN_ON(!chanctx_conf)) {
1489 rcu_read_unlock();
1490 kfree_skb(skb);
1491 return;
1492 }
1493
1494 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
Johannes Berg4bf88532012-11-09 11:39:59 +01001495 chanctx_conf->def.chan->band);
Johannes Berg55de9082012-07-26 17:24:39 +02001496 rcu_read_unlock();
1497}
1498
1499static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
Helmut Schaacf6bb792011-12-15 10:18:34 +01001500 struct sk_buff *skb)
1501{
1502 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1503 ieee80211_tx_skb_tid(sdata, skb, 7);
1504}
1505
Johannes Berg9c6bd792008-09-11 00:01:52 +02001506void ieee802_11_parse_elems(u8 *start, size_t len,
1507 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001508u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1509 struct ieee802_11_elems *elems,
1510 u64 filter, u32 crc);
Johannes Berg881d9482009-01-21 15:13:48 +01001511u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001512 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001513
Kalle Valo520eb822008-12-18 23:35:27 +02001514void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1515void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1516void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001517void ieee80211_send_nullfunc(struct ieee80211_local *local,
1518 struct ieee80211_sub_if_data *sdata,
1519 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001520void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1521 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001522void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001523 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001524
Kalle Valoce7c9112008-12-18 23:35:20 +02001525void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001526 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001527 enum queue_stop_reason reason);
1528void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
Johannes Berg445ea4e2013-02-13 12:25:28 +01001529 unsigned long queues,
Kalle Valoce7c9112008-12-18 23:35:20 +02001530 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001531void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1532 enum queue_stop_reason reason);
1533void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1534 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001535void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001536void ieee80211_add_pending_skb(struct ieee80211_local *local,
1537 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001538void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1539 struct sk_buff_head *skbs,
1540 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001541static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1542 struct sk_buff_head *skbs)
1543{
1544 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1545}
Johannes Berg39ecc012013-02-13 12:11:00 +01001546void ieee80211_flush_queues(struct ieee80211_local *local,
1547 struct ieee80211_sub_if_data *sdata);
Kalle Valoce7c9112008-12-18 23:35:20 +02001548
Johannes Berg46900292009-02-15 12:44:28 +01001549void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
Jouni Malinen700e8ea2012-09-30 19:29:37 +03001550 u16 transaction, u16 auth_alg, u16 status,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001551 const u8 *extra, size_t extra_len, const u8 *bssid,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001552 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1553 u32 tx_flags);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001554void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1555 const u8 *bssid, u16 stype, u16 reason,
1556 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001557int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Bergc604b9f2012-11-29 12:45:18 +01001558 size_t buffer_len, const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001559 enum ieee80211_band band, u32 rate_mask,
1560 u8 channel);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001561struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001562 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001563 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001564 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001565 const u8 *ie, size_t ie_len,
1566 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001567void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001568 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001569 const u8 *ie, size_t ie_len,
Johannes Berg1672c0e32013-01-29 15:02:27 +01001570 u32 ratemask, bool directed, u32 tx_flags,
Johannes Berg55de9082012-07-26 17:24:39 +02001571 struct ieee80211_channel *channel, bool scan);
Johannes Berg46900292009-02-15 12:44:28 +01001572
1573void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1574 const size_t supp_rates_len,
1575 const u8 *supp_rates);
1576u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1577 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001578 enum ieee80211_band band, u32 *basic_rates);
Johannes Berg0f782312009-12-01 13:37:02 +01001579int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1580 enum ieee80211_smps_mode smps_mode);
Johannes Berg04ecd252012-09-11 14:34:12 +02001581void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +01001582
Johannes Berg8e664fb2009-12-23 13:15:38 +01001583size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1584 const u8 *ids, int n_ids, size_t offset);
1585size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001586u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001587 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001588u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Johannes Berg4bf88532012-11-09 11:39:59 +01001589 const struct cfg80211_chan_def *chandef,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001590 u16 prot_mode);
Mahesh Palivelaba0afa22012-07-02 11:25:12 +00001591u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1592 u32 cap);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001593int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001594 struct sk_buff *skb, bool need_basic,
1595 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001596int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001597 struct sk_buff *skb, bool need_basic,
1598 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001599
Johannes Bergf444de02010-05-05 15:25:02 +02001600/* channel management */
Johannes Berg4bf88532012-11-09 11:39:59 +01001601void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
Johannes Berg4a3cb702013-02-12 16:43:19 +01001602 const struct ieee80211_ht_operation *ht_oper,
Johannes Berg4bf88532012-11-09 11:39:59 +01001603 struct cfg80211_chan_def *chandef);
Johannes Bergf444de02010-05-05 15:25:02 +02001604
Michal Kaziord01a1e62012-06-26 14:37:16 +02001605int __must_check
1606ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
Johannes Berg4bf88532012-11-09 11:39:59 +01001607 const struct cfg80211_chan_def *chandef,
Michal Kaziord01a1e62012-06-26 14:37:16 +02001608 enum ieee80211_chanctx_mode mode);
Johannes Berg2c9b7352013-02-07 21:37:29 +01001609int __must_check
1610ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1611 const struct cfg80211_chan_def *chandef,
1612 u32 *changed);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001613void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
Johannes Berg4d76d212012-12-11 20:38:41 +01001614void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
Johannes Berg1f4ac5a2013-02-08 12:07:44 +01001615void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1616 bool clear);
Michal Kaziord01a1e62012-06-26 14:37:16 +02001617
Johannes Berg04ecd252012-09-11 14:34:12 +02001618void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1619 struct ieee80211_chanctx *chanctx);
Simon Wunderlich164eb022013-02-08 18:16:20 +01001620void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1621 struct ieee80211_chanctx *chanctx);
1622
1623void ieee80211_dfs_cac_timer(unsigned long data);
1624void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1625void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1626void ieee80211_dfs_radar_detected_work(struct work_struct *work);
Johannes Berg04ecd252012-09-11 14:34:12 +02001627
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001628#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001629#define debug_noinline noinline
1630#else
1631#define debug_noinline
1632#endif
1633
Jiri Bencf0706e82007-05-05 11:45:53 -07001634#endif /* IEEE80211_I_H */