blob: 796b13bfc9532c1adcb5199934980c255443dbe0 [file] [log] [blame]
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"
33
Johannes Berg9cfb0002008-04-03 15:17:31 +020034struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070035
36/* Maximum number of broadcast/multicast frames to buffer when some of the
37 * associated stations are using power saving. */
38#define AP_MAX_BC_BUFFER 128
39
40/* Maximum number of frames buffered to all STAs, including multicast frames.
41 * Note: increasing this limit increases the potential memory requirement. Each
42 * frame can be up to about 2 kB long. */
43#define TOTAL_MAX_TX_BUFFER 512
44
45/* Required encryption head and tailroom */
46#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020047#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070048
49/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
50 * reception of at least three fragmented frames. This limit can be increased
51 * by changing this define, at the cost of slower frame reassembly and
52 * increased memory use (about 2 kB of RAM per entry). */
53#define IEEE80211_FRAGMENT_MAX 4
54
Johannes Berg20ad19d2009-02-10 21:25:45 +010055#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
56
Kalle Valoab133152010-01-12 10:42:31 +020057#define IEEE80211_DEFAULT_UAPSD_QUEUES \
58 (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
59 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
60 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
61 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
62
63#define IEEE80211_DEFAULT_MAX_SP_LEN \
64 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
65
Jiri Bencf0706e82007-05-05 11:45:53 -070066struct ieee80211_fragment_entry {
67 unsigned long first_frag_time;
68 unsigned int seq;
69 unsigned int rx_queue;
70 unsigned int last_frag;
71 unsigned int extra_len;
72 struct sk_buff_head skb_list;
73 int ccmp; /* Whether fragments were encrypted with CCMP */
74 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
75};
76
77
Johannes Bergc2b13452008-09-11 00:01:55 +020078struct ieee80211_bss {
Johannes Berg00d3f142009-02-10 21:26:00 +010079 /* don't want to look up all the time */
Johannes Berg056cdd52008-03-26 23:21:47 +010080 size_t ssid_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070081 u8 ssid[IEEE80211_MAX_SSID_LEN];
Johannes Berg00d3f142009-02-10 21:26:00 +010082
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080083 u8 dtim_period;
Johannes Berg00d3f142009-02-10 21:26:00 +010084
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030085 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020086 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010087
88 unsigned long last_probe_resp;
89
Luis Carlos Coboee385852008-02-23 15:17:11 +010090#ifdef CONFIG_MAC80211_MESH
91 u8 *mesh_id;
92 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040093 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010094#endif
Johannes Berg00d3f142009-02-10 21:26:00 +010095
Jiri Bencf0706e82007-05-05 11:45:53 -070096#define IEEE80211_MAX_SUPP_RATES 32
97 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
98 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070099
Johannes Berg00d3f142009-02-10 21:26:00 +0100100 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300101 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200102 * that we can feed ERP info to the driver when handling the
103 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100104 * otherwise, you probably don't want to use them.
105 */
106 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200107 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800108
109 /* Keep track of the corruption of the last beacon/probe response. */
110 u8 corrupt_data;
111
112 /* Keep track of what bits of information we have valid info for. */
113 u8 valid_data;
114};
115
116/**
117 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
118 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
119 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
120 *
121 * These are bss flags that are attached to a bss in the
122 * @corrupt_data field of &struct ieee80211_bss.
123 */
124enum ieee80211_bss_corrupt_data_flags {
125 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
126 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
127};
128
129/**
130 * enum ieee80211_valid_data_flags - BSS valid data flags
131 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
132 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
133 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
134 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
135 *
136 * These are bss flags that are attached to a bss in the
137 * @valid_data field of &struct ieee80211_bss. They show which parts
138 * of the data structure were recieved as a result of an un-corrupted
139 * beacon/probe response.
140 */
141enum ieee80211_bss_valid_data_flags {
142 IEEE80211_BSS_VALID_DTIM = BIT(0),
143 IEEE80211_BSS_VALID_WMM = BIT(1),
144 IEEE80211_BSS_VALID_RATES = BIT(2),
145 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700146};
147
Johannes Bergc2b13452008-09-11 00:01:55 +0200148static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100149{
150#ifdef CONFIG_MAC80211_MESH
151 return bss->mesh_cfg;
152#endif
153 return NULL;
154}
155
Johannes Bergc2b13452008-09-11 00:01:55 +0200156static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100157{
158#ifdef CONFIG_MAC80211_MESH
159 return bss->mesh_id;
160#endif
161 return NULL;
162}
163
Johannes Bergc2b13452008-09-11 00:01:55 +0200164static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100165{
166#ifdef CONFIG_MAC80211_MESH
167 return bss->mesh_id_len;
168#endif
169 return 0;
170}
171
Jiri Bencf0706e82007-05-05 11:45:53 -0700172
Johannes Berg9ae54c82008-01-31 19:48:20 +0100173typedef unsigned __bitwise__ ieee80211_tx_result;
174#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
175#define TX_DROP ((__force ieee80211_tx_result) 1u)
176#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
177
Johannes Berg5cf121c2008-02-25 16:27:43 +0100178#define IEEE80211_TX_UNICAST BIT(1)
179#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100180
Johannes Berg5cf121c2008-02-25 16:27:43 +0100181struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700182 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100183 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700184 struct ieee80211_local *local;
185 struct ieee80211_sub_if_data *sdata;
186 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700187 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700188
Johannes Berg5cf121c2008-02-25 16:27:43 +0100189 struct ieee80211_channel *channel;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100190
Johannes Berg056cdd52008-03-26 23:21:47 +0100191 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100192};
193
194
195typedef unsigned __bitwise__ ieee80211_rx_result;
196#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
197#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
198#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
199#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
200
Johannes Berg554891e2010-09-24 12:38:25 +0200201/**
202 * enum ieee80211_packet_rx_flags - packet RX flags
203 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
204 * (incl. multicast frames)
205 * @IEEE80211_RX_IN_SCAN: received while scanning
206 * @IEEE80211_RX_FRAGMENTED: fragmented frame
207 * @IEEE80211_RX_AMSDU: a-MSDU packet
208 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100209 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200210 *
211 * These are per-frame flags that are attached to a frame in the
212 * @rx_flags field of &struct ieee80211_rx_status.
213 */
214enum ieee80211_packet_rx_flags {
215 IEEE80211_RX_IN_SCAN = BIT(0),
216 IEEE80211_RX_RA_MATCH = BIT(1),
217 IEEE80211_RX_FRAGMENTED = BIT(2),
218 IEEE80211_RX_AMSDU = BIT(3),
219 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100220 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200221};
222
223/**
224 * enum ieee80211_rx_flags - RX data flags
225 *
226 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100227 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
228 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200229 *
230 * These flags are used across handling multiple interfaces
231 * for a single frame.
232 */
233enum ieee80211_rx_flags {
234 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100235 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200236};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100237
238struct ieee80211_rx_data {
239 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100240 struct ieee80211_local *local;
241 struct ieee80211_sub_if_data *sdata;
242 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100243 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100244
Johannes Berg056cdd52008-03-26 23:21:47 +0100245 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200246
247 /*
248 * Index into sequence numbers array, 0..16
249 * since the last (16) is used for non-QoS,
250 * will be 16 on non-QoS frames.
251 */
252 int seqno_idx;
253
254 /*
255 * Index into the security IV/PN arrays, 0..16
256 * since the last (16) is used for CCMP-encrypted
257 * management frames, will be set to 16 on mgmt
258 * frames and 0 on non-QoS frames.
259 */
260 int security_idx;
261
Johannes Berg5cf121c2008-02-25 16:27:43 +0100262 u32 tkip_iv32;
263 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700264};
265
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100266struct beacon_data {
267 u8 *head, *tail;
268 int head_len, tail_len;
Johannes Berg88600202012-02-13 15:17:18 +0100269 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100270};
271
Jiri Bencf0706e82007-05-05 11:45:53 -0700272struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200273 struct beacon_data __rcu *beacon;
Arik Nemtsov02945822011-11-10 11:28:57 +0200274 struct sk_buff __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700275
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400276 struct list_head vlans;
277
Jiri Bencf0706e82007-05-05 11:45:53 -0700278 /* yes, this looks ugly, but guarantees that we can later use
279 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100280 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e82007-05-05 11:45:53 -0700281 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e82007-05-05 11:45:53 -0700282 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100283 atomic_t num_sta_ps; /* number of stations in PS mode */
Johannes Berg29623892011-12-14 12:20:31 +0100284 atomic_t num_sta_authorized; /* number of authorized stations */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100285 int dtim_count;
Christian Lamparter512119b2011-01-31 20:48:44 +0200286 bool dtim_bc_mc;
Jiri Bencf0706e82007-05-05 11:45:53 -0700287};
288
289struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700290 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100291 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700292};
293
294struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400295 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100296
297 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200298 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700299};
300
Luis Carlos Coboee385852008-02-23 15:17:11 +0100301struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700302 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
303 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
304 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100305 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
306 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700307 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100308 atomic_t estab_plinks;
309};
310
311#define PREQ_Q_F_START 0x1
312#define PREQ_Q_F_REFRESH 0x2
313struct mesh_preq_queue {
314 struct list_head list;
315 u8 dst[ETH_ALEN];
316 u8 flags;
317};
318
Johannes Bergf679f652009-12-23 13:15:34 +0100319enum ieee80211_work_type {
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100320 IEEE80211_WORK_ABORT,
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100321 IEEE80211_WORK_REMAIN_ON_CHANNEL,
Johannes Bergf30221e2010-11-25 10:02:30 +0100322 IEEE80211_WORK_OFFCHANNEL_TX,
Johannes Berg77fdaa12009-07-07 03:45:17 +0200323};
324
Johannes Bergaf6b6372009-12-23 13:15:35 +0100325/**
326 * enum work_done_result - indicates what to do after work was done
327 *
328 * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
329 * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
330 * should be requeued.
331 */
332enum work_done_result {
333 WORK_DONE_DESTROY,
334 WORK_DONE_REQUEUE,
335};
336
Johannes Bergf679f652009-12-23 13:15:34 +0100337struct ieee80211_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200338 struct list_head list;
Johannes Bergf679f652009-12-23 13:15:34 +0100339
Johannes Bergaf6b6372009-12-23 13:15:35 +0100340 struct rcu_head rcu_head;
341
342 struct ieee80211_sub_if_data *sdata;
343
344 enum work_done_result (*done)(struct ieee80211_work *wk,
345 struct sk_buff *skb);
346
Johannes Bergf679f652009-12-23 13:15:34 +0100347 struct ieee80211_channel *chan;
Johannes Berge4da8c32009-12-23 13:15:43 +0100348 enum nl80211_channel_type chan_type;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100349
Johannes Berg77fdaa12009-07-07 03:45:17 +0200350 unsigned long timeout;
Johannes Bergf679f652009-12-23 13:15:34 +0100351 enum ieee80211_work_type type;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200352
Johannes Berge4da8c32009-12-23 13:15:43 +0100353 bool started;
354
Johannes Bergf679f652009-12-23 13:15:34 +0100355 union {
356 struct {
Johannes Berge4da8c32009-12-23 13:15:43 +0100357 u32 duration;
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100358 } remain;
Johannes Bergf30221e2010-11-25 10:02:30 +0100359 struct {
360 struct sk_buff *frame;
361 u32 wait;
Johannes Berg28a1bcd2011-10-04 18:27:10 +0200362 bool status;
Johannes Bergf30221e2010-11-25 10:02:30 +0100363 } offchan_tx;
Johannes Bergf679f652009-12-23 13:15:34 +0100364 };
Johannes Berg77fdaa12009-07-07 03:45:17 +0200365
Johannes Berg66e67e42012-01-20 13:55:27 +0100366 size_t data_len;
367 u8 data[];
Johannes Berg77fdaa12009-07-07 03:45:17 +0200368};
369
Johannes Berg46900292009-02-15 12:44:28 +0100370/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200371enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200372 IEEE80211_STA_BEACON_POLL = BIT(0),
373 IEEE80211_STA_CONNECTION_POLL = BIT(1),
374 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Bergb291ba12009-07-10 15:29:03 +0200375 IEEE80211_STA_DISABLE_11N = BIT(4),
376 IEEE80211_STA_CSA_RECEIVED = BIT(5),
377 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200378 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530379 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700380 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Bergab1faea2009-07-01 21:41:17 +0200381};
382
Johannes Berg66e67e42012-01-20 13:55:27 +0100383struct ieee80211_mgd_auth_data {
384 struct cfg80211_bss *bss;
385 unsigned long timeout;
386 int tries;
387 u16 algorithm, expected_transaction;
388
389 u8 key[WLAN_KEY_LEN_WEP104];
390 u8 key_len, key_idx;
391 bool synced;
392 bool done;
393
394 size_t ie_len;
395 u8 ie[];
396};
397
398struct ieee80211_mgd_assoc_data {
399 struct cfg80211_bss *bss;
400 const u8 *supp_rates;
401 const u8 *ht_information_ie;
402
403 unsigned long timeout;
404 int tries;
405
406 u16 capability;
407 u8 prev_bssid[ETH_ALEN];
408 u8 ssid[IEEE80211_MAX_SSID_LEN];
409 u8 ssid_len;
410 u8 supp_rates_len;
411 bool wmm_used, uapsd_used;
412 bool have_beacon;
413 bool sent_assoc;
414 bool synced;
415
416 size_t ie_len;
417 u8 ie[];
418};
419
Johannes Berg46900292009-02-15 12:44:28 +0100420struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100421 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200422 struct timer_list conn_mon_timer;
423 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530424 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200425 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530426 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200427 struct work_struct beacon_connection_loss_work;
Johannes Berg46900292009-02-15 12:44:28 +0100428
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100429 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200430 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300431 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100432 bool nullfunc_failed;
Johannes Bergb291ba12009-07-10 15:29:03 +0200433
Johannes Berg77fdaa12009-07-07 03:45:17 +0200434 struct mutex mtx;
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100435 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100436 struct ieee80211_mgd_auth_data *auth_data;
437 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100438
Johannes Berg77fdaa12009-07-07 03:45:17 +0200439 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100440
Jiri Bencf0706e82007-05-05 11:45:53 -0700441 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700442
Johannes Berg5bb644a2009-05-17 11:40:42 +0200443 unsigned long timers_running; /* used for quiesce/restart */
Johannes Berg965beda2009-04-16 13:17:24 +0200444 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200445 bool broken_ap; /* AP is broken -- turn off powersave */
Johannes Berg0f782312009-12-01 13:37:02 +0100446 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200447 ap_smps, /* smps mode AP thinks we're in */
448 driver_smps_mode; /* smps mode request */
449
450 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200451
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400452 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700453
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300454 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200455 u32 beacon_crc;
456
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200457 enum {
458 IEEE80211_MFP_DISABLED,
459 IEEE80211_MFP_OPTIONAL,
460 IEEE80211_MFP_REQUIRED
461 } mfp; /* management frame protection */
462
Jiri Bencf0706e82007-05-05 11:45:53 -0700463 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100464
465 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700466
467 /* Signal strength from the last Beacon frame in the current BSS. */
468 int last_beacon_signal;
469
470 /*
471 * Weighted average of the signal strength from Beacon frames in the
472 * current BSS. This is in units of 1/16 of the signal unit to maintain
473 * accuracy and to speed up calculations, i.e., the value need to be
474 * divided by 16 to get the actual value.
475 */
476 int ave_beacon_signal;
477
478 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300479 * Number of Beacon frames used in ave_beacon_signal. This can be used
480 * to avoid generating less reliable cqm events that would be based
481 * only on couple of received frames.
482 */
483 unsigned int count_beacon_signal;
484
485 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700486 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
487 * that triggered a cqm event. 0 indicates that no event has been
488 * generated for the current association.
489 */
490 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700491
492 /*
493 * State variables for keeping track of RSSI of the AP currently
494 * connected to and informing driver when RSSI has gone
495 * below/above a certain threshold.
496 */
497 int rssi_min_thold, rssi_max_thold;
498 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800499
500 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
501 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700502};
503
Johannes Berg46900292009-02-15 12:44:28 +0100504struct ieee80211_if_ibss {
505 struct timer_list timer;
Johannes Berg46900292009-02-15 12:44:28 +0100506
Johannes Berg7a17a332010-07-21 11:30:27 +0200507 struct mutex mtx;
508
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200509 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200510
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300511 u32 basic_rates;
512
Johannes Berg5bb644a2009-05-17 11:40:42 +0200513 bool timer_running;
514
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200515 bool fixed_bssid;
516 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200517 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100518
Antonio Quartulli267335d2012-01-31 20:25:47 +0100519 bool control_port;
520
Felix Fietkau4d196e42012-03-01 11:23:37 +0100521 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200522 u8 ssid[IEEE80211_MAX_SSID_LEN];
523 u8 ssid_len, ie_len;
524 u8 *ie;
525 struct ieee80211_channel *channel;
Alexander Simon13c40c52011-11-30 16:56:34 +0100526 enum nl80211_channel_type channel_type;
Johannes Berg46900292009-02-15 12:44:28 +0100527
528 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200529 /* probe response/beacon for IBSS */
Johannes Berg40b275b2011-05-13 14:15:49 +0200530 struct sk_buff __rcu *presp;
531 struct sk_buff *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100532
Johannes Berg8bf11d82011-12-15 11:17:37 +0100533 spinlock_t incomplete_lock;
534 struct list_head incomplete_stations;
535
Johannes Berg46900292009-02-15 12:44:28 +0100536 enum {
537 IEEE80211_IBSS_MLME_SEARCH,
538 IEEE80211_IBSS_MLME_JOINED,
539 } state;
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;
580 u32 mesh_seqnum;
581 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700582 int num_gates;
Javier Cardona581a8b02011-04-07 15:08:27 -0700583 const u8 *ie;
584 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700585 enum {
586 IEEE80211_MESH_SEC_NONE = 0x0,
587 IEEE80211_MESH_SEC_AUTHED = 0x1,
588 IEEE80211_MESH_SEC_SECURED = 0x2,
589 } security;
Johannes Berg472dbc42008-09-11 00:01:49 +0200590};
Johannes Berg902acc72008-02-23 15:17:19 +0100591
592#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200593#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
594 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100595#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200596#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100597 do { } while (0)
598#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700599
Johannes Berg213cd112008-09-11 00:01:54 +0200600/**
601 * enum ieee80211_sub_if_data_flags - virtual interface flags
602 *
603 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
604 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200605 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
606 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
607 * associated stations and deliver multicast frames both
608 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200609 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100610 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200611 */
612enum ieee80211_sub_if_data_flags {
613 IEEE80211_SDATA_ALLMULTI = BIT(0),
614 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100615 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
616 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200617 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100618 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200619};
620
Johannes Berg34d4bc42010-08-27 12:35:58 +0200621/**
622 * enum ieee80211_sdata_state_bits - virtual interface state bits
623 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
624 * mirrors netif_running() but is separate for interface type
625 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200626 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
627 * mode, so queues are stopped
Johannes Berg34d4bc42010-08-27 12:35:58 +0200628 */
629enum ieee80211_sdata_state_bits {
630 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200631 SDATA_STATE_OFFCHANNEL,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200632};
633
Jiri Bencf0706e82007-05-05 11:45:53 -0700634struct ieee80211_sub_if_data {
635 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700636
637 struct wireless_dev wdev;
638
Johannes Berg11a843b2007-08-28 17:01:55 -0400639 /* keys */
640 struct list_head key_list;
641
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530642 /* count for keys needing tailroom space allocation */
643 int crypto_tx_tailroom_needed_cnt;
644
Jiri Bencf0706e82007-05-05 11:45:53 -0700645 struct net_device *dev;
646 struct ieee80211_local *local;
647
Jiri Slaby13262ff2007-08-28 17:01:54 -0400648 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200649
Johannes Berg34d4bc42010-08-27 12:35:58 +0200650 unsigned long state;
651
Jiri Bencf0706e82007-05-05 11:45:53 -0700652 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700653
Johannes Berg47846c92009-11-25 17:46:19 +0100654 char name[IFNAMSIZ];
655
Johannes Berg413ad502009-05-08 21:21:06 +0200656 /*
657 * keep track of whether the HT opmode (stored in
658 * vif.bss_info.ht_operation_mode) is valid.
659 */
660 bool ht_opmode_valid;
661
Johannes Berg7da7cc12010-08-05 17:02:38 +0200662 /* to detect idle changes */
663 bool old_idle;
664
Jiri Bencf0706e82007-05-05 11:45:53 -0700665 /* Fragment table for host-based reassembly */
666 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
667 unsigned int fragment_next;
668
Simon Wunderlichb53be792011-11-18 14:20:44 +0100669 /* TID bitmap for NoAck policy */
670 u16 noack_map;
671
Johannes Berg40b275b2011-05-13 14:15:49 +0200672 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
673 struct ieee80211_key __rcu *default_unicast_key;
674 struct ieee80211_key __rcu *default_multicast_key;
675 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700676
Johannes Berg94778282008-10-10 13:21:59 +0200677 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300678 __be16 control_port_protocol;
679 bool control_port_no_encrypt;
Johannes Berg94778282008-10-10 13:21:59 +0200680
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300681 struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
682
Johannes Berg64592c82010-06-10 10:21:31 +0200683 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200684 struct sk_buff_head skb_queue;
685
Juuso Oikarinen68542962010-06-09 13:43:26 +0300686 bool arp_filter_state;
687
Johannes Berg3e122be2008-07-09 14:40:34 +0200688 /*
689 * AP this belongs to: self in AP mode and
690 * corresponding AP in VLAN mode, NULL for
691 * all others (might be needed later in IBSS)
692 */
693 struct ieee80211_if_ap *bss;
694
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200695 /* bitmap of allowed (non-MCS) rate indexes for rate control */
696 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100697 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700698
699 union {
700 struct ieee80211_if_ap ap;
701 struct ieee80211_if_wds wds;
702 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100703 struct ieee80211_if_managed mgd;
704 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200705 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100706 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700707 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700708
709#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300710 struct {
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100711 struct dentry *dir;
Ben Greear295bafb2010-09-22 20:29:01 -0700712 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100713 struct dentry *default_unicast_key;
714 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200715 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100716 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700717#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100718 /* must be last, dynamically sized area in this! */
719 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700720};
721
Johannes Berg32bfd352007-12-19 01:31:26 +0100722static inline
723struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
724{
725 return container_of(p, struct ieee80211_sub_if_data, vif);
726}
727
Johannes Bergc1475ca2010-06-10 10:21:37 +0200728enum sdata_queue_type {
729 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
730 IEEE80211_SDATA_QUEUE_AGG_START = 1,
731 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
732};
733
Jiri Bencf0706e82007-05-05 11:45:53 -0700734enum {
735 IEEE80211_RX_MSG = 1,
736 IEEE80211_TX_STATUS_MSG = 2,
Johannes Berg37fbd902011-09-29 16:04:39 +0200737 IEEE80211_EOSP_MSG = 3,
738};
739
740struct skb_eosp_msg_data {
741 u8 sta[ETH_ALEN], iface[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700742};
743
Kalle Valoce7c9112008-12-18 23:35:20 +0200744enum queue_stop_reason {
745 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200746 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100747 IEEE80211_QUEUE_STOP_REASON_CSA,
748 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100749 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200750 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Rajkumar Manoharan693828f2011-09-02 13:51:59 +0530751 IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
Kalle Valoce7c9112008-12-18 23:35:20 +0200752};
753
Luciano Coelho65a65382010-12-21 16:02:17 +0200754#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100755struct tpt_led_trigger {
756 struct led_trigger trig;
757 char name[32];
758 const struct ieee80211_tpt_blink *blink_table;
759 unsigned int blink_table_len;
760 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100761 unsigned long prev_traffic;
762 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100763 unsigned int active, want;
764 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100765};
Luciano Coelho65a65382010-12-21 16:02:17 +0200766#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100767
Helmut Schaa142b9f52009-07-23 13:18:01 +0200768/**
769 * mac80211 scan flags - currently active scan mode
770 *
771 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
772 * well be on the operating channel
773 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
774 * determine if we are on the operating channel or not
Johannes Berg8789d452010-08-26 13:30:26 +0200775 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
776 * that the scan completed.
777 * @SCAN_ABORTED: Set for our scan work function when the driver reported
778 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200779 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200780enum {
781 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200782 SCAN_HW_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200783 SCAN_COMPLETED,
784 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200785};
786
787/**
788 * enum mac80211_scan_state - scan state machine states
789 *
790 * @SCAN_DECISION: Main entry point to the scan state machine, this state
791 * determines if we should keep on scanning or switch back to the
792 * operating channel
793 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
794 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100795 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
796 * send out data
797 * @SCAN_RESUME: Resume the scan and scan the next channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200798 */
799enum mac80211_scan_state {
800 SCAN_DECISION,
801 SCAN_SET_CHANNEL,
802 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100803 SCAN_SUSPEND,
804 SCAN_RESUME,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200805};
806
Jiri Bencf0706e82007-05-05 11:45:53 -0700807struct ieee80211_local {
808 /* embed the driver visible part.
809 * don't cast (use the static inlines below), but we keep
810 * it first anyway so they become a no-op */
811 struct ieee80211_hw hw;
812
813 const struct ieee80211_ops *ops;
814
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400815 /*
Johannes Bergaf6b6372009-12-23 13:15:35 +0100816 * work stuff, potentially off-channel (in the future)
817 */
Johannes Bergaf6b6372009-12-23 13:15:35 +0100818 struct list_head work_list;
819 struct timer_list work_timer;
820 struct work_struct work_work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100821
822 /*
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400823 * private workqueue to mac80211. mac80211 makes this accessible
824 * via ieee80211_queue_work()
825 */
826 struct workqueue_struct *workqueue;
827
Johannes Berge4e72fb2009-03-23 17:28:42 +0100828 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100829 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200830 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100831
Jiri Bencf0706e82007-05-05 11:45:53 -0700832 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100833 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100834 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200835 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
836 fif_probe_req;
837 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400838 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200839
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300840 bool wiphy_ciphers_allocated;
841
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200842 /* protects the aggregated multicast list and filter calls */
843 spinlock_t filter_lock;
844
Johannes Berg3ac64be2009-08-17 16:16:53 +0200845 /* used for uploading changed mc list */
846 struct work_struct reconfig_filter;
847
Johannes Berg0f782312009-12-01 13:37:02 +0100848 /* used to reconfigure hardware SM PS */
849 struct work_struct recalc_smps;
850
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200851 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000852 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200853
Johannes Bergd0709a62008-02-25 16:27:46 +0100854 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200855
856 /*
857 * suspended is true if we finished all the suspend _and_ we have
858 * not yet come up from resume. This is to be used by mac80211
859 * to ensure driver sanity during suspend and mac80211's own
860 * sanity. It can eventually be used for WoW as well.
861 */
862 bool suspended;
863
864 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100865 * Resuming is true while suspended, but when we're reprogramming the
866 * hardware -- at that time it's allowed to use ieee80211_queue_work()
867 * again even though some other parts of the stack are still suspended
868 * and we still drop received frames to avoid waking the stack.
869 */
870 bool resuming;
871
872 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200873 * quiescing is true during the suspend process _only_ to
874 * ease timer cancelling etc.
875 */
876 bool quiescing;
877
Johannes Bergea77f122009-08-21 14:44:45 +0200878 /* device is started */
879 bool started;
880
Johannes Bergeecc4802011-05-04 15:37:29 +0200881 /* wowlan is enabled -- don't reconfig on resume */
882 bool wowlan;
883
Johannes Bergb306f452007-07-10 19:32:08 +0200884 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700885
Jiri Bencf0706e82007-05-05 11:45:53 -0700886 /* Tasklet and skb queue to process calls from IRQ mode. All frames
887 * added to skb_queue will be processed, but frames in
888 * skb_queue_unreliable may be dropped if the total length of these
889 * queues increases over the limit. */
890#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
891 struct tasklet_struct tasklet;
892 struct sk_buff_head skb_queue;
893 struct sk_buff_head skb_queue_unreliable;
894
Christian Lamparter24a8fda2010-12-30 17:25:29 +0100895 /*
896 * Internal FIFO queue which is shared between multiple rx path
897 * stages. Its main task is to provide a serialization mechanism,
898 * so all rx handlers can enjoy having exclusive access to their
899 * private data structures.
900 */
901 struct sk_buff_head rx_skb_queue;
902 bool running_rx_handler; /* protected by rx_skb_queue.lock */
903
Johannes Bergd0709a62008-02-25 16:27:46 +0100904 /* Station data */
905 /*
Johannes Berg4d339602011-12-15 11:24:20 +0100906 * The mutex only protects the list, hash table and
907 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +0100908 */
Johannes Berg34e89502010-02-03 13:59:58 +0100909 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +0100910 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +0100911 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +0100912 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +0200913 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -0700914 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200915 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -0700916
Johannes Berg2a577d92009-03-23 17:28:37 +0100917 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700918 struct tasklet_struct tx_pending_tasklet;
919
Johannes Berga6a67db2010-06-10 10:21:41 +0200920 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100921
Johannes Berg53918992007-09-26 15:19:47 +0200922 /* number of interfaces with corresponding IFF_ flags */
923 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700924
925 struct rate_control_ref *rate_ctrl;
926
Felix Fietkau5f9f1812011-03-25 21:39:19 +0100927 struct crypto_cipher *wep_tx_tfm;
928 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -0700929 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700930
Johannes Bergc771c9d2009-01-23 22:54:03 +0100931 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400932 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100933 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400934
Johannes Bergb16bd152008-04-11 21:40:35 +0200935 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +0200936 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +0200937 * key pointers (write access, they're RCU.)
938 */
Johannes Bergad0e2b52010-06-01 10:19:19 +0200939 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200940
Johannes Berga1699b72010-07-30 16:46:07 +0200941 /* mutex for scan and work locking */
942 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200943
Johannes Bergc2b13452008-09-11 00:01:55 +0200944 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200945 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +0100946 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +0200947 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100948 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Johannes Berg2a519312009-02-10 21:25:55 +0100949 struct ieee80211_channel *scan_channel;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100950 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -0700951 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +0200952 int scan_ies_len;
Johannes Berg8318d782008-01-24 19:38:38 +0100953
Luciano Coelho79f460c2011-05-11 17:09:36 +0300954 bool sched_scanning;
955 struct ieee80211_sched_scan_ies sched_scan_ies;
Luciano Coelho85a99942011-05-12 16:28:29 +0300956 struct work_struct sched_scan_stopped_work;
Luciano Coelho79f460c2011-05-11 17:09:36 +0300957
Helmut Schaadf13cce2010-02-24 14:19:21 +0100958 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +0200959 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -0700960 struct delayed_work scan_work;
Johannes Berg491775a2008-09-08 17:44:23 +0200961 struct ieee80211_sub_if_data *scan_sdata;
Johannes Berg0aaffa92010-05-05 15:28:27 +0200962 enum nl80211_channel_type _oper_channel_type;
Johannes Berg2a519312009-02-10 21:25:55 +0100963 struct ieee80211_channel *oper_channel, *csa_channel;
Jiri Bencf0706e82007-05-05 11:45:53 -0700964
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100965 /* Temporary remain-on-channel for off-channel operations */
966 struct ieee80211_channel *tmp_channel;
967 enum nl80211_channel_type tmp_channel_type;
968
Jiri Bencf0706e82007-05-05 11:45:53 -0700969 /* SNMP counters */
970 /* dot11CountersTable */
971 u32 dot11TransmittedFragmentCount;
972 u32 dot11MulticastTransmittedFrameCount;
973 u32 dot11FailedCount;
974 u32 dot11RetryCount;
975 u32 dot11MultipleRetryCount;
976 u32 dot11FrameDuplicateCount;
977 u32 dot11ReceivedFragmentCount;
978 u32 dot11MulticastReceivedFrameCount;
979 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -0700980
981#ifdef CONFIG_MAC80211_LEDS
982 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100983 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +0100984 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100985 char tx_led_name[32], rx_led_name[32],
986 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -0700987#endif
988
Jiri Bencf0706e82007-05-05 11:45:53 -0700989#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
990 /* TX/RX handler statistics */
991 unsigned int tx_handlers_drop;
992 unsigned int tx_handlers_queued;
993 unsigned int tx_handlers_drop_unencrypted;
994 unsigned int tx_handlers_drop_fragment;
995 unsigned int tx_handlers_drop_wep;
996 unsigned int tx_handlers_drop_not_assoc;
997 unsigned int tx_handlers_drop_unauth_port;
998 unsigned int rx_handlers_drop;
999 unsigned int rx_handlers_queued;
1000 unsigned int rx_handlers_drop_nullfunc;
1001 unsigned int rx_handlers_drop_defrag;
1002 unsigned int rx_handlers_drop_short;
1003 unsigned int rx_handlers_drop_passive_scan;
1004 unsigned int tx_expand_skb_head;
1005 unsigned int tx_expand_skb_head_cloned;
1006 unsigned int rx_expand_skb_head;
1007 unsigned int rx_expand_skb_head2;
1008 unsigned int rx_handlers_fragments;
1009 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001010#define I802_DEBUG_INC(c) (c)++
1011#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1012#define I802_DEBUG_INC(c) do { } while (0)
1013#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1014
1015
Jiri Bencf0706e82007-05-05 11:45:53 -07001016 int total_ps_buffered; /* total number of all buffered unicast and
1017 * multicast packets for power saving stations
1018 */
Jiri Bencf0706e82007-05-05 11:45:53 -07001019 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
Kalle Valo520eb822008-12-18 23:35:27 +02001020
Kalle Valo50ae0cf2010-01-12 10:42:39 +02001021 /*
1022 * Bitmask of enabled u-apsd queues,
1023 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
1024 * to take effect.
1025 */
1026 unsigned int uapsd_queues;
1027
1028 /*
1029 * Maximum number of buffered frames AP can deliver during a
1030 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
1031 * Needs a new association to take effect.
1032 */
1033 unsigned int uapsd_max_sp_len;
1034
Kalle Valo572e0012009-02-10 17:09:31 +02001035 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001036 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001037 /*
1038 * PS can only be enabled when we have exactly one managed
1039 * interface (and monitors) in PS, this then points there.
1040 */
1041 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001042 struct work_struct dynamic_ps_enable_work;
1043 struct work_struct dynamic_ps_disable_work;
1044 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001045 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001046 struct notifier_block ifa_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001047
Juuso Oikarinenff616382010-06-09 09:51:52 +03001048 /*
1049 * The dynamic ps timeout configured from user space via WEXT -
1050 * this will override whatever chosen by mac80211 internally.
1051 */
1052 int dynamic_ps_forced_timeout;
Juuso Oikarinenf90754c2010-06-21 08:59:39 +03001053 int dynamic_ps_user_timeout;
1054 bool disable_dynamic_ps;
Juuso Oikarinenff616382010-06-09 09:51:52 +03001055
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001056 int user_power_level; /* in dBm */
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +05301057 int power_constr_level; /* in dBm */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001058
Johannes Berg0f782312009-12-01 13:37:02 +01001059 enum ieee80211_smps_mode smps_mode;
1060
Johannes Bergf2753dd2009-04-14 10:09:24 +02001061 struct work_struct restart_work;
1062
Jiri Bence9f207f2007-05-05 11:46:38 -07001063#ifdef CONFIG_MAC80211_DEBUGFS
1064 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001065 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001066 struct dentry *keys;
1067 } debugfs;
1068#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001069
Johannes Berg21f83582010-12-18 17:20:47 +01001070 struct ieee80211_channel *hw_roc_channel;
1071 struct net_device *hw_roc_dev;
Johannes Berg4334ec82011-02-02 16:58:06 +01001072 struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
Johannes Berg21f83582010-12-18 17:20:47 +01001073 struct work_struct hw_roc_start, hw_roc_done;
1074 enum nl80211_channel_type hw_roc_channel_type;
1075 unsigned int hw_roc_duration;
1076 u32 hw_roc_cookie;
Johannes Berg90fc4b32010-12-18 17:20:48 +01001077 bool hw_roc_for_tx;
Johannes Berg21f83582010-12-18 17:20:47 +01001078
Johannes Berga729cff2011-11-06 14:13:34 +01001079 struct idr ack_status_frames;
1080 spinlock_t ack_status_lock;
1081
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001082 /* dummy netdev for use w/ NAPI */
1083 struct net_device napi_dev;
1084
1085 struct napi_struct napi;
Jiri Bencf0706e82007-05-05 11:45:53 -07001086};
1087
Johannes Berg3e122be2008-07-09 14:40:34 +02001088static inline struct ieee80211_sub_if_data *
1089IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1090{
Johannes Berg3e122be2008-07-09 14:40:34 +02001091 return netdev_priv(dev);
1092}
1093
Johannes Bergc1475ca2010-06-10 10:21:37 +02001094/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001095struct ieee80211_ra_tid {
1096 u8 ra[ETH_ALEN];
1097 u16 tid;
1098};
1099
Johannes Bergdd769862011-11-18 16:54:50 +01001100/* Parsed Information Elements */
1101struct ieee802_11_elems {
1102 u8 *ie_start;
1103 size_t total_len;
1104
1105 /* pointers to IEs */
1106 u8 *ssid;
1107 u8 *supp_rates;
1108 u8 *fh_params;
1109 u8 *ds_params;
1110 u8 *cf_params;
1111 struct ieee80211_tim_ie *tim;
1112 u8 *ibss_params;
1113 u8 *challenge;
1114 u8 *wpa;
1115 u8 *rsn;
1116 u8 *erp_info;
1117 u8 *ext_supp_rates;
1118 u8 *wmm_info;
1119 u8 *wmm_param;
1120 struct ieee80211_ht_cap *ht_cap_elem;
1121 struct ieee80211_ht_info *ht_info_elem;
1122 struct ieee80211_meshconf_ie *mesh_config;
1123 u8 *mesh_id;
1124 u8 *peering;
1125 u8 *preq;
1126 u8 *prep;
1127 u8 *perr;
1128 struct ieee80211_rann_ie *rann;
1129 u8 *ch_switch_elem;
1130 u8 *country_elem;
1131 u8 *pwr_constr_elem;
1132 u8 *quiet_elem; /* first quite element */
1133 u8 *timeout_int;
1134
1135 /* length of them, respectively */
1136 u8 ssid_len;
1137 u8 supp_rates_len;
1138 u8 fh_params_len;
1139 u8 ds_params_len;
1140 u8 cf_params_len;
1141 u8 tim_len;
1142 u8 ibss_params_len;
1143 u8 challenge_len;
1144 u8 wpa_len;
1145 u8 rsn_len;
1146 u8 erp_info_len;
1147 u8 ext_supp_rates_len;
1148 u8 wmm_info_len;
1149 u8 wmm_param_len;
1150 u8 mesh_id_len;
1151 u8 peering_len;
1152 u8 preq_len;
1153 u8 prep_len;
1154 u8 perr_len;
1155 u8 ch_switch_elem_len;
1156 u8 country_elem_len;
1157 u8 pwr_constr_elem_len;
1158 u8 quiet_elem_len;
1159 u8 num_of_quiet_elem; /* can be more the one */
1160 u8 timeout_int_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001161
1162 /* whether a parse error occurred while retrieving these elements */
1163 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001164};
1165
Jiri Bencf0706e82007-05-05 11:45:53 -07001166static inline struct ieee80211_local *hw_to_local(
1167 struct ieee80211_hw *hw)
1168{
1169 return container_of(hw, struct ieee80211_local, hw);
1170}
1171
Jiri Bencf0706e82007-05-05 11:45:53 -07001172
Johannes Berg571ecf62007-07-27 15:43:22 +02001173static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1174{
1175 return compare_ether_addr(raddr, addr) == 0 ||
1176 is_broadcast_ether_addr(raddr);
1177}
1178
1179
Johannes Berge8975582008-10-09 12:18:51 +02001180int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001181void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001182void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1183 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001184void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001185u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001186
Johannes Berg46900292009-02-15 12:44:28 +01001187/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001188void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001189int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1190 struct cfg80211_auth_request *req);
1191int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1192 struct cfg80211_assoc_request *req);
1193int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001194 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001195int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001196 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001197void ieee80211_send_pspoll(struct ieee80211_local *local,
1198 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001199void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1200int ieee80211_max_network_latency(struct notifier_block *nb,
1201 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001202int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Bergcc32abd2009-05-15 11:52:31 +02001203void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1204 struct ieee80211_channel_sw_ie *sw_elem,
Johannes Berg5ce6e432010-05-11 16:20:57 +02001205 struct ieee80211_bss *bss,
1206 u64 timestamp);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001207void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1208void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001209void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1210void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1211 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001212void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001213void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Johannes Berg54e4ffb2012-02-25 21:48:08 +01001214void ieee80211_mgd_teardown(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001215
Johannes Berg46900292009-02-15 12:44:28 +01001216/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001217void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1218void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001219void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1220 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001221int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1222 struct cfg80211_ibss_params *params);
1223int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001224void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1225void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001226void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1227void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1228 struct sk_buff *skb);
1229
1230/* mesh code */
1231void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1232void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1233 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001234
Johannes Berg9c6bd792008-09-11 00:01:52 +02001235/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001236void ieee80211_scan_work(struct work_struct *work);
Johannes Bergf3b85252009-04-23 16:01:47 +02001237int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
Johannes Bergbe4a4b62010-05-03 08:49:48 +02001238 const u8 *ssid, u8 ssid_len,
1239 struct ieee80211_channel *chan);
Johannes Bergc2b13452008-09-11 00:01:55 +02001240int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001241 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001242void ieee80211_scan_cancel(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001243ieee80211_rx_result
Johannes Bergf1d58c22009-06-17 13:13:00 +02001244ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001245
Johannes Berg0a51b272008-09-08 17:44:25 +02001246void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001247struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001248ieee80211_bss_info_update(struct ieee80211_local *local,
1249 struct ieee80211_rx_status *rx_status,
1250 struct ieee80211_mgmt *mgmt,
1251 size_t len,
1252 struct ieee802_11_elems *elems,
Johannes Berg2a519312009-02-10 21:25:55 +01001253 struct ieee80211_channel *channel,
1254 bool beacon);
Johannes Bergc2b13452008-09-11 00:01:55 +02001255struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +02001256ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
1257 u8 *ssid, u8 ssid_len);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001258void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001259 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001260
Luciano Coelho79f460c2011-05-11 17:09:36 +03001261/* scheduled scan handling */
1262int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1263 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001264int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1265void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001266
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001267/* off-channel helpers */
Ben Greearb23b0252011-02-04 11:54:17 -08001268void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1269 bool offchannel_ps_enable);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001270void ieee80211_offchannel_return(struct ieee80211_local *local,
Ben Greearb23b0252011-02-04 11:54:17 -08001271 bool offchannel_ps_disable);
Johannes Berg21f83582010-12-18 17:20:47 +01001272void ieee80211_hw_roc_setup(struct ieee80211_local *local);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001273
Johannes Berg3e122be2008-07-09 14:40:34 +02001274/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001275int ieee80211_iface_init(void);
1276void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001277int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg05c914f2008-09-11 00:01:58 +02001278 struct net_device **new_dev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001279 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001280int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001281 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001282void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001283void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001284u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
1285void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001286void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1287 const int offset);
Jiri Bencf0706e82007-05-05 11:45:53 -07001288
Johannes Berg9607e6b2009-12-23 13:15:31 +01001289static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1290{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001291 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001292}
1293
Johannes Berge2ebc742007-07-27 15:43:22 +02001294/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001295void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1296void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001297netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1298 struct net_device *dev);
1299netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1300 struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +02001301
Johannes Bergde1ede72008-09-09 14:42:50 +02001302/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001303bool ieee80111_cfg_override_disables_ht40(struct ieee80211_sub_if_data *sdata);
1304void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1305 struct ieee80211_sta_ht_cap *ht_cap);
1306void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1307 struct ieee80211_supported_band *sband,
Johannes Bergae5eb022008-10-14 16:58:37 +02001308 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001309 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergb8695a82009-02-10 21:25:46 +01001310void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1311 const u8 *da, u16 tid,
1312 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001313int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1314 enum ieee80211_smps_mode smps, const u8 *da,
1315 const u8 *bssid);
Johannes Bergd1f5b7a2010-08-05 17:05:55 +02001316void ieee80211_request_smps_work(struct work_struct *work);
Johannes Bergde1ede72008-09-09 14:42:50 +02001317
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001318void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001319 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001320void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001321 u16 initiator, u16 reason, bool stop);
1322void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
Johannes Bergde1ede72008-09-09 14:42:50 +02001323void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1324 struct sta_info *sta,
1325 struct ieee80211_mgmt *mgmt, size_t len);
1326void ieee80211_process_addba_resp(struct ieee80211_local *local,
1327 struct sta_info *sta,
1328 struct ieee80211_mgmt *mgmt,
1329 size_t len);
1330void ieee80211_process_addba_request(struct ieee80211_local *local,
1331 struct sta_info *sta,
1332 struct ieee80211_mgmt *mgmt,
1333 size_t len);
1334
Johannes Berg849b7962009-02-10 21:25:54 +01001335int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001336 enum ieee80211_back_parties initiator,
1337 bool tx);
Johannes Berg67c282c2010-06-10 10:21:43 +02001338int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001339 enum ieee80211_back_parties initiator,
1340 bool tx);
Johannes Berg5d22c892010-06-10 10:21:40 +02001341void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1342void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001343void ieee80211_ba_session_work(struct work_struct *work);
1344void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001345void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001346
Johannes Berg39192c02008-09-09 14:49:03 +02001347/* Spectrum management */
1348void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1349 struct ieee80211_mgmt *mgmt,
1350 size_t len);
1351
Johannes Bergf2753dd2009-04-14 10:09:24 +02001352/* Suspend/resume and hw reconfiguration */
1353int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001354void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001355
Johannes Berg827b1fb2009-03-13 11:44:18 +01001356#ifdef CONFIG_PM
Johannes Bergeecc4802011-05-04 15:37:29 +02001357int __ieee80211_suspend(struct ieee80211_hw *hw,
1358 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001359
1360static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1361{
John W. Linville85f72bc2010-09-01 16:12:28 -04001362 struct ieee80211_local *local = hw_to_local(hw);
1363
1364 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1365 "%s: resume with hardware scan still in progress\n",
1366 wiphy_name(hw->wiphy));
1367
Johannes Bergf2753dd2009-04-14 10:09:24 +02001368 return ieee80211_reconfig(hw_to_local(hw));
1369}
Johannes Berg827b1fb2009-03-13 11:44:18 +01001370#else
Johannes Bergeecc4802011-05-04 15:37:29 +02001371static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
1372 struct cfg80211_wowlan *wowlan)
Johannes Berg827b1fb2009-03-13 11:44:18 +01001373{
1374 return 0;
1375}
Johannes Bergf2753dd2009-04-14 10:09:24 +02001376
Johannes Berg827b1fb2009-03-13 11:44:18 +01001377static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1378{
1379 return 0;
1380}
1381#endif
Bob Copeland665af4f2009-01-19 11:20:53 -05001382
Johannes Bergc2d15602007-07-27 15:43:23 +02001383/* utility functions/constants */
1384extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001385u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001386 enum nl80211_iftype type);
Johannes Bergc2d15602007-07-27 15:43:23 +02001387int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1388 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001389void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001390 struct ieee80211_hdr *hdr, const u8 *tsc,
1391 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001392void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1393 bool bss_notify);
Johannes Bergce662b442011-09-29 16:04:34 +02001394void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001395
1396void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1397 struct sk_buff *skb, int tid);
1398static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1399 struct sk_buff *skb)
1400{
1401 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1402 ieee80211_tx_skb_tid(sdata, skb, 7);
1403}
1404
Johannes Berg9c6bd792008-09-11 00:01:52 +02001405void ieee802_11_parse_elems(u8 *start, size_t len,
1406 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001407u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1408 struct ieee802_11_elems *elems,
1409 u64 filter, u32 crc);
Johannes Berg881d9482009-01-21 15:13:48 +01001410u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001411 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001412
Kalle Valo520eb822008-12-18 23:35:27 +02001413void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1414void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1415void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001416void ieee80211_send_nullfunc(struct ieee80211_local *local,
1417 struct ieee80211_sub_if_data *sdata,
1418 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001419void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1420 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001421void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001422 struct ieee80211_hdr *hdr, bool ack);
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +02001423void ieee80211_beacon_connection_loss_work(struct work_struct *work);
Kalle Valo520eb822008-12-18 23:35:27 +02001424
Kalle Valoce7c9112008-12-18 23:35:20 +02001425void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1426 enum queue_stop_reason reason);
1427void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1428 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001429void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1430 enum queue_stop_reason reason);
1431void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1432 enum queue_stop_reason reason);
Johannes Berg8f77f382009-06-07 21:58:37 +02001433void ieee80211_add_pending_skb(struct ieee80211_local *local,
1434 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001435void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1436 struct sk_buff_head *skbs);
1437void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1438 struct sk_buff_head *skbs,
1439 void (*fn)(void *data), void *data);
Kalle Valoce7c9112008-12-18 23:35:20 +02001440
Johannes Berg46900292009-02-15 12:44:28 +01001441void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1442 u16 transaction, u16 auth_alg,
Johannes Bergfffd0932009-07-08 14:22:54 +02001443 u8 *extra, size_t extra_len, const u8 *bssid,
Antonio Quartulliefa6a092012-01-09 19:43:06 +01001444 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
Johannes Bergde95a542009-04-01 11:58:36 +02001445int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Berg4d36ec582009-10-27 20:59:55 +01001446 const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001447 enum ieee80211_band band, u32 rate_mask,
1448 u8 channel);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001449struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001450 u8 *dst, u32 ratemask,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001451 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001452 const u8 *ie, size_t ie_len,
1453 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001454void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001455 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001456 const u8 *ie, size_t ie_len,
Rajkumar Manoharanaad14ce2011-09-25 14:53:31 +05301457 u32 ratemask, bool directed, bool no_cck);
Johannes Berg46900292009-02-15 12:44:28 +01001458
1459void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1460 const size_t supp_rates_len,
1461 const u8 *supp_rates);
1462u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1463 struct ieee802_11_elems *elems,
1464 enum ieee80211_band band);
Johannes Berg0f782312009-12-01 13:37:02 +01001465int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1466 enum ieee80211_smps_mode smps_mode);
Johannes Berg025e6be2010-10-05 10:41:47 +02001467void ieee80211_recalc_smps(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001468
Johannes Berg8e664fb2009-12-23 13:15:38 +01001469size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1470 const u8 *ids, int n_ids, size_t offset);
1471size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001472u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001473 u16 cap);
1474u8 *ieee80211_ie_build_ht_info(u8 *pos,
1475 struct ieee80211_sta_ht_cap *ht_cap,
1476 struct ieee80211_channel *channel,
1477 enum nl80211_channel_type channel_type);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001478
Johannes Bergaf6b6372009-12-23 13:15:35 +01001479/* internal work items */
1480void ieee80211_work_init(struct ieee80211_local *local);
1481void ieee80211_add_work(struct ieee80211_work *wk);
1482void free_work(struct ieee80211_work *wk);
1483void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001484int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
1485 struct ieee80211_channel *chan,
1486 enum nl80211_channel_type channel_type,
1487 unsigned int duration, u64 *cookie);
1488int ieee80211_wk_cancel_remain_on_channel(
1489 struct ieee80211_sub_if_data *sdata, u64 cookie);
Johannes Bergaf6b6372009-12-23 13:15:35 +01001490
Johannes Bergf444de02010-05-05 15:25:02 +02001491/* channel management */
1492enum ieee80211_chan_mode {
1493 CHAN_MODE_UNDEFINED,
1494 CHAN_MODE_HOPPING,
1495 CHAN_MODE_FIXED,
1496};
1497
1498enum ieee80211_chan_mode
1499ieee80211_get_channel_mode(struct ieee80211_local *local,
1500 struct ieee80211_sub_if_data *ignore);
Johannes Berg0aaffa92010-05-05 15:28:27 +02001501bool ieee80211_set_channel_type(struct ieee80211_local *local,
1502 struct ieee80211_sub_if_data *sdata,
1503 enum nl80211_channel_type chantype);
Alexander Simon42e7aa72011-10-26 14:47:26 -07001504enum nl80211_channel_type
1505ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
Johannes Bergf444de02010-05-05 15:25:02 +02001506
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001507#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001508#define debug_noinline noinline
1509#else
1510#define debug_noinline
1511#endif
1512
Jiri Bencf0706e82007-05-05 11:45:53 -07001513#endif /* IEEE80211_I_H */