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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
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030059/*
60 * Some APs experience problems when working with U-APSD. Decrease the
61 * probability of that happening by using legacy mode for all ACs but VO.
62 * The AP that caused us trouble was a Cisco 4410N. It ignores our
63 * setting, and always treats non-VO ACs as legacy.
64 */
Kalle Valoab133152010-01-12 10:42:31 +020065#define IEEE80211_DEFAULT_UAPSD_QUEUES \
Arik Nemtsovd6a4ed62012-06-18 10:43:50 +030066 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
Kalle Valoab133152010-01-12 10:42:31 +020067
68#define IEEE80211_DEFAULT_MAX_SP_LEN \
69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
70
Antonio Quartulli6ae16772012-09-07 13:28:52 +020071#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
72
Jiri Bencf0706e82007-05-05 11:45:53 -070073struct ieee80211_fragment_entry {
74 unsigned long first_frag_time;
75 unsigned int seq;
76 unsigned int rx_queue;
77 unsigned int last_frag;
78 unsigned int extra_len;
79 struct sk_buff_head skb_list;
80 int ccmp; /* Whether fragments were encrypted with CCMP */
81 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
82};
83
84
Johannes Bergc2b13452008-09-11 00:01:55 +020085struct ieee80211_bss {
Johannes Berg00d3f142009-02-10 21:26:00 +010086 /* don't want to look up all the time */
Johannes Berg056cdd52008-03-26 23:21:47 +010087 size_t ssid_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070088 u8 ssid[IEEE80211_MAX_SSID_LEN];
Johannes Berg00d3f142009-02-10 21:26:00 +010089
Johannes Berg8c358bc2012-05-22 22:13:05 +020090 u32 device_ts;
91
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080092 u8 dtim_period;
Johannes Berg00d3f142009-02-10 21:26:00 +010093
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030094 bool wmm_used;
Kalle Valoab133152010-01-12 10:42:31 +020095 bool uapsd_supported;
Johannes Berg00d3f142009-02-10 21:26:00 +010096
97 unsigned long last_probe_resp;
98
Luis Carlos Coboee385852008-02-23 15:17:11 +010099#ifdef CONFIG_MAC80211_MESH
100 u8 *mesh_id;
101 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -0400102 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +0100103#endif
Johannes Berg00d3f142009-02-10 21:26:00 +0100104
Jiri Bencf0706e82007-05-05 11:45:53 -0700105#define IEEE80211_MAX_SUPP_RATES 32
106 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
107 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700108
Johannes Berg00d3f142009-02-10 21:26:00 +0100109 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300110 * During association, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200111 * that we can feed ERP info to the driver when handling the
112 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100113 * otherwise, you probably don't want to use them.
114 */
115 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200116 u8 erp_value;
Paul Stewartfcff4f12012-02-23 17:59:53 -0800117
118 /* Keep track of the corruption of the last beacon/probe response. */
119 u8 corrupt_data;
120
121 /* Keep track of what bits of information we have valid info for. */
122 u8 valid_data;
123};
124
125/**
126 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
127 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
128 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
129 *
130 * These are bss flags that are attached to a bss in the
131 * @corrupt_data field of &struct ieee80211_bss.
132 */
133enum ieee80211_bss_corrupt_data_flags {
134 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
135 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
136};
137
138/**
139 * enum ieee80211_valid_data_flags - BSS valid data flags
140 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
141 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
142 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
143 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
144 *
145 * These are bss flags that are attached to a bss in the
146 * @valid_data field of &struct ieee80211_bss. They show which parts
147 * of the data structure were recieved as a result of an un-corrupted
148 * beacon/probe response.
149 */
150enum ieee80211_bss_valid_data_flags {
151 IEEE80211_BSS_VALID_DTIM = BIT(0),
152 IEEE80211_BSS_VALID_WMM = BIT(1),
153 IEEE80211_BSS_VALID_RATES = BIT(2),
154 IEEE80211_BSS_VALID_ERP = BIT(3)
Jiri Bencf0706e82007-05-05 11:45:53 -0700155};
156
Johannes Bergc2b13452008-09-11 00:01:55 +0200157static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100158{
159#ifdef CONFIG_MAC80211_MESH
160 return bss->mesh_cfg;
161#endif
162 return NULL;
163}
164
Johannes Bergc2b13452008-09-11 00:01:55 +0200165static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100166{
167#ifdef CONFIG_MAC80211_MESH
168 return bss->mesh_id;
169#endif
170 return NULL;
171}
172
Johannes Bergc2b13452008-09-11 00:01:55 +0200173static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100174{
175#ifdef CONFIG_MAC80211_MESH
176 return bss->mesh_id_len;
177#endif
178 return 0;
179}
180
Jiri Bencf0706e82007-05-05 11:45:53 -0700181
Johannes Berg9ae54c82008-01-31 19:48:20 +0100182typedef unsigned __bitwise__ ieee80211_tx_result;
183#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
184#define TX_DROP ((__force ieee80211_tx_result) 1u)
185#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
186
Johannes Berg5cf121c2008-02-25 16:27:43 +0100187#define IEEE80211_TX_UNICAST BIT(1)
188#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100189
Johannes Berg5cf121c2008-02-25 16:27:43 +0100190struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700191 struct sk_buff *skb;
Johannes Berg252b86c2011-11-16 15:28:55 +0100192 struct sk_buff_head skbs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700193 struct ieee80211_local *local;
194 struct ieee80211_sub_if_data *sdata;
195 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700196 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700197
Johannes Berg056cdd52008-03-26 23:21:47 +0100198 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100199};
200
201
202typedef unsigned __bitwise__ ieee80211_rx_result;
203#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
204#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
205#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
206#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
207
Johannes Berg554891e2010-09-24 12:38:25 +0200208/**
209 * enum ieee80211_packet_rx_flags - packet RX flags
210 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
211 * (incl. multicast frames)
Johannes Berg554891e2010-09-24 12:38:25 +0200212 * @IEEE80211_RX_FRAGMENTED: fragmented frame
213 * @IEEE80211_RX_AMSDU: a-MSDU packet
214 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
Christian Lamparter4cfda472010-12-27 23:21:26 +0100215 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
Johannes Berg554891e2010-09-24 12:38:25 +0200216 *
217 * These are per-frame flags that are attached to a frame in the
218 * @rx_flags field of &struct ieee80211_rx_status.
219 */
220enum ieee80211_packet_rx_flags {
Johannes Berg554891e2010-09-24 12:38:25 +0200221 IEEE80211_RX_RA_MATCH = BIT(1),
222 IEEE80211_RX_FRAGMENTED = BIT(2),
223 IEEE80211_RX_AMSDU = BIT(3),
224 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
Christian Lamparter4cfda472010-12-27 23:21:26 +0100225 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
Johannes Berg554891e2010-09-24 12:38:25 +0200226};
227
228/**
229 * enum ieee80211_rx_flags - RX data flags
230 *
231 * @IEEE80211_RX_CMNTR: received on cooked monitor already
Johannes Bergee971922011-11-04 11:18:18 +0100232 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
233 * to cfg80211_report_obss_beacon().
Johannes Berg554891e2010-09-24 12:38:25 +0200234 *
235 * These flags are used across handling multiple interfaces
236 * for a single frame.
237 */
238enum ieee80211_rx_flags {
239 IEEE80211_RX_CMNTR = BIT(0),
Johannes Bergee971922011-11-04 11:18:18 +0100240 IEEE80211_RX_BEACON_REPORTED = BIT(1),
Johannes Berg554891e2010-09-24 12:38:25 +0200241};
Johannes Berg5cf121c2008-02-25 16:27:43 +0100242
243struct ieee80211_rx_data {
244 struct sk_buff *skb;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100245 struct ieee80211_local *local;
246 struct ieee80211_sub_if_data *sdata;
247 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100248 struct ieee80211_key *key;
Johannes Berg056cdd52008-03-26 23:21:47 +0100249
Johannes Berg056cdd52008-03-26 23:21:47 +0100250 unsigned int flags;
Johannes Berg9e262972011-07-07 18:45:03 +0200251
252 /*
253 * Index into sequence numbers array, 0..16
254 * since the last (16) is used for non-QoS,
255 * will be 16 on non-QoS frames.
256 */
257 int seqno_idx;
258
259 /*
260 * Index into the security IV/PN arrays, 0..16
261 * since the last (16) is used for CCMP-encrypted
262 * management frames, will be set to 16 on mgmt
263 * frames and 0 on non-QoS frames.
264 */
265 int security_idx;
266
Johannes Berg5cf121c2008-02-25 16:27:43 +0100267 u32 tkip_iv32;
268 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700269};
270
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100271struct beacon_data {
272 u8 *head, *tail;
273 int head_len, tail_len;
Johannes Berg88600202012-02-13 15:17:18 +0100274 struct rcu_head rcu_head;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100275};
276
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300277struct probe_resp {
278 struct rcu_head rcu_head;
279 int len;
280 u8 data[0];
281};
282
Jiri Bencf0706e82007-05-05 11:45:53 -0700283struct ieee80211_if_ap {
Johannes Berg40b275b2011-05-13 14:15:49 +0200284 struct beacon_data __rcu *beacon;
Eyal Shapiraaa7a0082012-08-06 14:26:16 +0300285 struct probe_resp __rcu *probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700286
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400287 struct list_head vlans;
288
Jiri Bencf0706e82007-05-05 11:45:53 -0700289 /* yes, this looks ugly, but guarantees that we can later use
290 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100291 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e82007-05-05 11:45:53 -0700292 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e82007-05-05 11:45:53 -0700293 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100294 atomic_t num_sta_ps; /* number of stations in PS mode */
Felix Fietkau030ef8f2012-04-23 19:49:02 +0200295 atomic_t num_mcast_sta; /* number of stations receiving multicast */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100296 int dtim_count;
Christian Lamparter512119b2011-01-31 20:48:44 +0200297 bool dtim_bc_mc;
Jiri Bencf0706e82007-05-05 11:45:53 -0700298};
299
300struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700301 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100302 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700303};
304
305struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400306 struct list_head list;
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100307
308 /* used for all tx if the VLAN is configured to 4-addr mode */
Johannes Berg40b275b2011-05-13 14:15:49 +0200309 struct sta_info __rcu *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700310};
311
Luis Carlos Coboee385852008-02-23 15:17:11 +0100312struct mesh_stats {
Daniel Walkerc8a61a72009-08-18 10:59:00 -0700313 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
314 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
315 __u32 fwded_frames; /* Mesh total forwarded frames */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100316 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
317 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
Javier Cardonacfee66b2011-09-06 13:05:21 -0700318 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100319 atomic_t estab_plinks;
320};
321
322#define PREQ_Q_F_START 0x1
323#define PREQ_Q_F_REFRESH 0x2
324struct mesh_preq_queue {
325 struct list_head list;
326 u8 dst[ETH_ALEN];
327 u8 flags;
328};
329
Johannes Berg2eb278e2012-06-05 14:28:42 +0200330#if HZ/100 == 0
331#define IEEE80211_ROC_MIN_LEFT 1
332#else
333#define IEEE80211_ROC_MIN_LEFT (HZ/100)
334#endif
Johannes Berg77fdaa12009-07-07 03:45:17 +0200335
Johannes Berg2eb278e2012-06-05 14:28:42 +0200336struct ieee80211_roc_work {
Johannes Berg77fdaa12009-07-07 03:45:17 +0200337 struct list_head list;
Johannes Berg2eb278e2012-06-05 14:28:42 +0200338 struct list_head dependents;
Johannes Bergf679f652009-12-23 13:15:34 +0100339
Johannes Berg2eb278e2012-06-05 14:28:42 +0200340 struct delayed_work work;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100341
342 struct ieee80211_sub_if_data *sdata;
343
Johannes Bergf679f652009-12-23 13:15:34 +0100344 struct ieee80211_channel *chan;
Johannes Berge4da8c32009-12-23 13:15:43 +0100345 enum nl80211_channel_type chan_type;
Johannes Bergaf6b6372009-12-23 13:15:35 +0100346
Johannes Berg2eb278e2012-06-05 14:28:42 +0200347 bool started, abort, hw_begun, notified;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200348
Johannes Berg2eb278e2012-06-05 14:28:42 +0200349 unsigned long hw_start_time;
Johannes Berge4da8c32009-12-23 13:15:43 +0100350
Johannes Berg2eb278e2012-06-05 14:28:42 +0200351 u32 duration, req_duration;
352 struct sk_buff *frame;
353 u64 mgmt_tx_cookie;
Johannes Berg77fdaa12009-07-07 03:45:17 +0200354};
355
Johannes Berg46900292009-02-15 12:44:28 +0100356/* flags used in struct ieee80211_if_managed.flags */
Johannes Bergab1faea2009-07-01 21:41:17 +0200357enum ieee80211_sta_flags {
Johannes Bergb291ba12009-07-10 15:29:03 +0200358 IEEE80211_STA_BEACON_POLL = BIT(0),
359 IEEE80211_STA_CONNECTION_POLL = BIT(1),
360 IEEE80211_STA_CONTROL_PORT = BIT(2),
Johannes Bergb291ba12009-07-10 15:29:03 +0200361 IEEE80211_STA_DISABLE_11N = BIT(4),
362 IEEE80211_STA_CSA_RECEIVED = BIT(5),
363 IEEE80211_STA_MFP_ENABLED = BIT(6),
Kalle Valoab133152010-01-12 10:42:31 +0200364 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
Vivek Natarajan375177b2010-02-09 14:50:28 +0530365 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700366 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
Johannes Berg24398e32012-03-28 10:58:36 +0200367 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
Mahesh Palivelad545dab2012-07-24 03:33:10 +0000368 IEEE80211_STA_DISABLE_VHT = BIT(11),
Johannes Bergab1faea2009-07-01 21:41:17 +0200369};
370
Johannes Berg66e67e42012-01-20 13:55:27 +0100371struct ieee80211_mgd_auth_data {
372 struct cfg80211_bss *bss;
373 unsigned long timeout;
374 int tries;
375 u16 algorithm, expected_transaction;
376
377 u8 key[WLAN_KEY_LEN_WEP104];
378 u8 key_len, key_idx;
Johannes Berg66e67e42012-01-20 13:55:27 +0100379 bool done;
380
381 size_t ie_len;
382 u8 ie[];
383};
384
385struct ieee80211_mgd_assoc_data {
386 struct cfg80211_bss *bss;
387 const u8 *supp_rates;
Johannes Berg66e67e42012-01-20 13:55:27 +0100388
389 unsigned long timeout;
390 int tries;
391
392 u16 capability;
393 u8 prev_bssid[ETH_ALEN];
394 u8 ssid[IEEE80211_MAX_SSID_LEN];
395 u8 ssid_len;
396 u8 supp_rates_len;
Johannes Berg76f03032012-03-08 15:02:05 +0100397 bool wmm, uapsd;
Johannes Berg66e67e42012-01-20 13:55:27 +0100398 bool have_beacon;
399 bool sent_assoc;
400 bool synced;
401
Johannes Berg9dde6422012-05-16 23:43:19 +0200402 u8 ap_ht_param;
403
Johannes Berg66e67e42012-01-20 13:55:27 +0100404 size_t ie_len;
405 u8 ie[];
406};
407
Johannes Berg46900292009-02-15 12:44:28 +0100408struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100409 struct timer_list timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200410 struct timer_list conn_mon_timer;
411 struct timer_list bcn_mon_timer;
Sujithc481ec92009-01-06 09:28:37 +0530412 struct timer_list chswitch_timer;
Johannes Bergb291ba12009-07-10 15:29:03 +0200413 struct work_struct monitor_work;
Sujithc481ec92009-01-06 09:28:37 +0530414 struct work_struct chswitch_work;
Juuso Oikarinen1e4dcd02010-03-19 07:14:53 +0200415 struct work_struct beacon_connection_loss_work;
Johannes Berg882a7c62012-08-01 22:32:45 +0200416 struct work_struct csa_connection_drop_work;
Johannes Berg46900292009-02-15 12:44:28 +0100417
Felix Fietkau7ccc8bd2010-11-19 22:55:38 +0100418 unsigned long beacon_timeout;
Johannes Bergb291ba12009-07-10 15:29:03 +0200419 unsigned long probe_timeout;
Maxim Levitskya43abf22009-07-31 18:54:12 +0300420 int probe_send_count;
Felix Fietkau04ac3c02010-12-02 21:01:08 +0100421 bool nullfunc_failed;
Johannes Bergb291ba12009-07-10 15:29:03 +0200422
Johannes Berg77fdaa12009-07-07 03:45:17 +0200423 struct mutex mtx;
Johannes Berg0c1ad2c2009-12-23 13:15:39 +0100424 struct cfg80211_bss *associated;
Johannes Berg66e67e42012-01-20 13:55:27 +0100425 struct ieee80211_mgd_auth_data *auth_data;
426 struct ieee80211_mgd_assoc_data *assoc_data;
Johannes Berg46900292009-02-15 12:44:28 +0100427
Johannes Berg77fdaa12009-07-07 03:45:17 +0200428 u8 bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100429
Jiri Bencf0706e82007-05-05 11:45:53 -0700430 u16 aid;
Jiri Bencf0706e82007-05-05 11:45:53 -0700431
Johannes Berg5bb644a2009-05-17 11:40:42 +0200432 unsigned long timers_running; /* used for quiesce/restart */
Johannes Berg965beda2009-04-16 13:17:24 +0200433 bool powersave; /* powersave requested for this iface */
Johannes Berg05cb9102011-10-28 11:59:47 +0200434 bool broken_ap; /* AP is broken -- turn off powersave */
Johannes Berg0f782312009-12-01 13:37:02 +0100435 enum ieee80211_smps_mode req_smps, /* requested smps mode */
Johannes Bergd1f5b7a2010-08-05 17:05:55 +0200436 ap_smps, /* smps mode AP thinks we're in */
437 driver_smps_mode; /* smps mode request */
438
439 struct work_struct request_smps_work;
Johannes Berg965beda2009-04-16 13:17:24 +0200440
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400441 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700442
Juuso Oikarinend8ec4432010-10-01 16:02:31 +0300443 bool beacon_crc_valid;
Johannes Bergd91f36d2009-04-16 13:17:26 +0200444 u32 beacon_crc;
445
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200446 enum {
447 IEEE80211_MFP_DISABLED,
448 IEEE80211_MFP_OPTIONAL,
449 IEEE80211_MFP_REQUIRED
450 } mfp; /* management frame protection */
451
Eliad Pellerdc41e4d2012-03-14 16:15:03 +0200452 /*
453 * Bitmask of enabled u-apsd queues,
454 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
455 * to take effect.
456 */
457 unsigned int uapsd_queues;
458
459 /*
460 * Maximum number of buffered frames AP can deliver during a
461 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
462 * Needs a new association to take effect.
463 */
464 unsigned int uapsd_max_sp_len;
465
Jiri Bencf0706e82007-05-05 11:45:53 -0700466 int wmm_last_param_set;
Johannes Berg9bc383d2009-11-19 11:55:19 +0100467
468 u8 use_4addr;
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700469
470 /* Signal strength from the last Beacon frame in the current BSS. */
471 int last_beacon_signal;
472
473 /*
474 * Weighted average of the signal strength from Beacon frames in the
475 * current BSS. This is in units of 1/16 of the signal unit to maintain
476 * accuracy and to speed up calculations, i.e., the value need to be
477 * divided by 16 to get the actual value.
478 */
479 int ave_beacon_signal;
480
481 /*
Jouni Malinen391a2002010-08-27 22:22:00 +0300482 * Number of Beacon frames used in ave_beacon_signal. This can be used
483 * to avoid generating less reliable cqm events that would be based
484 * only on couple of received frames.
485 */
486 unsigned int count_beacon_signal;
487
488 /*
Jouni Malinen17e4ec12010-03-29 23:28:30 -0700489 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
490 * that triggered a cqm event. 0 indicates that no event has been
491 * generated for the current association.
492 */
493 int last_cqm_event_signal;
Meenakshi Venkataraman615f7b92011-07-08 08:46:22 -0700494
495 /*
496 * State variables for keeping track of RSSI of the AP currently
497 * connected to and informing driver when RSSI has gone
498 * below/above a certain threshold.
499 */
500 int rssi_min_thold, rssi_max_thold;
501 int last_ave_beacon_signal;
Ben Greearef96a8422011-11-18 11:32:00 -0800502
503 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
504 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
Jiri Bencf0706e82007-05-05 11:45:53 -0700505};
506
Johannes Berg46900292009-02-15 12:44:28 +0100507struct ieee80211_if_ibss {
508 struct timer_list timer;
Johannes Berg46900292009-02-15 12:44:28 +0100509
Johannes Berg7a17a332010-07-21 11:30:27 +0200510 struct mutex mtx;
511
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200512 unsigned long last_scan_completed;
Johannes Berg5bb644a2009-05-17 11:40:42 +0200513
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +0300514 u32 basic_rates;
515
Johannes Berg5bb644a2009-05-17 11:40:42 +0200516 bool timer_running;
517
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200518 bool fixed_bssid;
519 bool fixed_channel;
Johannes Bergfffd0932009-07-08 14:22:54 +0200520 bool privacy;
Johannes Berg46900292009-02-15 12:44:28 +0100521
Antonio Quartulli267335d2012-01-31 20:25:47 +0100522 bool control_port;
Will Hawkins6abe0562012-06-20 11:51:14 -0400523 unsigned int auth_frame_registrations;
Antonio Quartulli267335d2012-01-31 20:25:47 +0100524
Felix Fietkau4d196e42012-03-01 11:23:37 +0100525 u8 bssid[ETH_ALEN] __aligned(2);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200526 u8 ssid[IEEE80211_MAX_SSID_LEN];
527 u8 ssid_len, ie_len;
528 u8 *ie;
529 struct ieee80211_channel *channel;
Alexander Simon13c40c52011-11-30 16:56:34 +0100530 enum nl80211_channel_type channel_type;
Johannes Berg46900292009-02-15 12:44:28 +0100531
532 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200533 /* probe response/beacon for IBSS */
Johannes Berg40b275b2011-05-13 14:15:49 +0200534 struct sk_buff __rcu *presp;
535 struct sk_buff *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100536
Johannes Berg8bf11d82011-12-15 11:17:37 +0100537 spinlock_t incomplete_lock;
538 struct list_head incomplete_stations;
539
Johannes Berg46900292009-02-15 12:44:28 +0100540 enum {
541 IEEE80211_IBSS_MLME_SEARCH,
542 IEEE80211_IBSS_MLME_JOINED,
543 } state;
544};
545
Javier Cardonadbf498f2012-03-31 11:31:32 -0700546/**
547 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
548 *
549 * these declarations define the interface, which enables
550 * vendor-specific mesh synchronization
551 *
552 */
553struct ieee802_11_elems;
554struct ieee80211_mesh_sync_ops {
555 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
556 u16 stype,
557 struct ieee80211_mgmt *mgmt,
558 struct ieee802_11_elems *elems,
559 struct ieee80211_rx_status *rx_status);
560 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
561 /* add other framework functions here */
562};
563
Johannes Berg472dbc42008-09-11 00:01:49 +0200564struct ieee80211_if_mesh {
Johannes Berg472dbc42008-09-11 00:01:49 +0200565 struct timer_list housekeeping_timer;
566 struct timer_list mesh_path_timer;
Rui Pauloe304bfd2009-11-09 23:46:56 +0000567 struct timer_list mesh_path_root_timer;
Johannes Berg472dbc42008-09-11 00:01:49 +0200568
Johannes Berg5bb644a2009-05-17 11:40:42 +0200569 unsigned long timers_running;
570
Javier Cardona18889232009-08-10 12:15:52 -0700571 unsigned long wrkq_flags;
Johannes Berg472dbc42008-09-11 00:01:49 +0200572
573 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
574 size_t mesh_id_len;
575 /* Active Path Selection Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000576 u8 mesh_pp_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200577 /* Active Path Selection Metric Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000578 u8 mesh_pm_id;
Johannes Berg472dbc42008-09-11 00:01:49 +0200579 /* Congestion Control Mode Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000580 u8 mesh_cc_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700581 /* Synchronization Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000582 u8 mesh_sp_id;
Javier Cardona9e03fdf2009-08-20 09:21:45 -0700583 /* Authentication Protocol Identifier */
Rui Paulo34917072009-11-09 23:46:39 +0000584 u8 mesh_auth_id;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000585 /* Local mesh Sequence Number */
586 u32 sn;
Johannes Berg472dbc42008-09-11 00:01:49 +0200587 /* Last used PREQ ID */
588 u32 preq_id;
589 atomic_t mpaths;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000590 /* Timestamp of last SN update */
591 unsigned long last_sn_update;
Thomas Pedersendca7e942011-11-24 17:15:24 -0800592 /* Time when it's ok to send next PERR */
593 unsigned long next_perr;
594 /* Timestamp of last PREQ sent */
Johannes Berg472dbc42008-09-11 00:01:49 +0200595 unsigned long last_preq;
596 struct mesh_rmc *rmc;
597 spinlock_t mesh_preq_queue_lock;
598 struct mesh_preq_queue preq_queue;
599 int preq_queue_len;
600 struct mesh_stats mshstats;
601 struct mesh_config mshcfg;
602 u32 mesh_seqnum;
603 bool accepting_plinks;
Javier Cardona5ee68e52011-08-09 16:45:08 -0700604 int num_gates;
Javier Cardona581a8b02011-04-07 15:08:27 -0700605 const u8 *ie;
606 u8 ie_len;
Javier Cardonab130e5c2011-05-03 16:57:07 -0700607 enum {
608 IEEE80211_MESH_SEC_NONE = 0x0,
609 IEEE80211_MESH_SEC_AUTHED = 0x1,
610 IEEE80211_MESH_SEC_SECURED = 0x2,
611 } security;
Javier Cardonadbf498f2012-03-31 11:31:32 -0700612 /* Extensible Synchronization Framework */
613 struct ieee80211_mesh_sync_ops *sync_ops;
614 s64 sync_offset_clockdrift_max;
615 spinlock_t sync_offset_lock;
616 bool adjusting_tbtt;
Johannes Berg472dbc42008-09-11 00:01:49 +0200617};
Johannes Berg902acc72008-02-23 15:17:19 +0100618
619#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200620#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
621 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100622#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200623#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100624 do { } while (0)
625#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700626
Johannes Berg213cd112008-09-11 00:01:54 +0200627/**
628 * enum ieee80211_sub_if_data_flags - virtual interface flags
629 *
630 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
631 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200632 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
633 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
634 * associated stations and deliver multicast frames both
635 * back to wireless media and to the local net stack.
Johannes Berg95acac62011-07-12 12:30:59 +0200636 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
Johannes Berg7b7eab62011-11-03 14:41:13 +0100637 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
Johannes Berg213cd112008-09-11 00:01:54 +0200638 */
639enum ieee80211_sub_if_data_flags {
640 IEEE80211_SDATA_ALLMULTI = BIT(0),
641 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100642 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
643 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg95acac62011-07-12 12:30:59 +0200644 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
Johannes Berg7b7eab62011-11-03 14:41:13 +0100645 IEEE80211_SDATA_IN_DRIVER = BIT(5),
Johannes Berg213cd112008-09-11 00:01:54 +0200646};
647
Johannes Berg34d4bc42010-08-27 12:35:58 +0200648/**
649 * enum ieee80211_sdata_state_bits - virtual interface state bits
650 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
651 * mirrors netif_running() but is separate for interface type
652 * change handling while the interface is up
Johannes Berg5b714c62010-08-27 13:45:28 +0200653 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
654 * mode, so queues are stopped
Johannes Berg34d4bc42010-08-27 12:35:58 +0200655 */
656enum ieee80211_sdata_state_bits {
657 SDATA_STATE_RUNNING,
Johannes Berg5b714c62010-08-27 13:45:28 +0200658 SDATA_STATE_OFFCHANNEL,
Johannes Berg34d4bc42010-08-27 12:35:58 +0200659};
660
Jiri Bencf0706e82007-05-05 11:45:53 -0700661struct ieee80211_sub_if_data {
662 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700663
664 struct wireless_dev wdev;
665
Johannes Berg11a843b2007-08-28 17:01:55 -0400666 /* keys */
667 struct list_head key_list;
668
Yogesh Ashok Powar3bff1862011-06-28 18:41:37 +0530669 /* count for keys needing tailroom space allocation */
670 int crypto_tx_tailroom_needed_cnt;
671
Jiri Bencf0706e82007-05-05 11:45:53 -0700672 struct net_device *dev;
673 struct ieee80211_local *local;
674
Jiri Slaby13262ff2007-08-28 17:01:54 -0400675 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200676
Johannes Berg34d4bc42010-08-27 12:35:58 +0200677 unsigned long state;
678
Jiri Bencf0706e82007-05-05 11:45:53 -0700679 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700680
Johannes Berg47846c92009-11-25 17:46:19 +0100681 char name[IFNAMSIZ];
682
Johannes Berg7da7cc12010-08-05 17:02:38 +0200683 /* to detect idle changes */
684 bool old_idle;
685
Jiri Bencf0706e82007-05-05 11:45:53 -0700686 /* Fragment table for host-based reassembly */
687 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
688 unsigned int fragment_next;
689
Simon Wunderlichb53be792011-11-18 14:20:44 +0100690 /* TID bitmap for NoAck policy */
691 u16 noack_map;
692
Yoni Divinsky00e96de2012-06-20 15:39:13 +0300693 /* bit field of ACM bits (BIT(802.1D tag)) */
694 u8 wmm_acm;
695
Johannes Berg40b275b2011-05-13 14:15:49 +0200696 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
697 struct ieee80211_key __rcu *default_unicast_key;
698 struct ieee80211_key __rcu *default_multicast_key;
699 struct ieee80211_key __rcu *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700700
Johannes Berg94778282008-10-10 13:21:59 +0200701 u16 sequence_number;
Johannes Berga621fa42010-08-27 14:26:54 +0300702 __be16 control_port_protocol;
703 bool control_port_no_encrypt;
Johannes Berg94778282008-10-10 13:21:59 +0200704
Johannes Berg54bcbc62012-03-28 11:04:25 +0200705 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
Eliad Pellerf6f3def2011-09-25 20:06:54 +0300706
Johannes Berg64592c82010-06-10 10:21:31 +0200707 struct work_struct work;
Johannes Berg35f20c12010-06-10 10:21:30 +0200708 struct sk_buff_head skb_queue;
709
Juuso Oikarinen68542962010-06-09 13:43:26 +0300710 bool arp_filter_state;
711
Johannes Berg3e122be2008-07-09 14:40:34 +0200712 /*
713 * AP this belongs to: self in AP mode and
714 * corresponding AP in VLAN mode, NULL for
715 * all others (might be needed later in IBSS)
716 */
717 struct ieee80211_if_ap *bss;
718
Jouni Malinen37eb0b12010-01-06 13:09:08 +0200719 /* bitmap of allowed (non-MCS) rate indexes for rate control */
720 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
Simon Wunderlich19468412012-01-28 17:25:33 +0100721 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700722
723 union {
724 struct ieee80211_if_ap ap;
725 struct ieee80211_if_wds wds;
726 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100727 struct ieee80211_if_managed mgd;
728 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200729 struct ieee80211_if_mesh mesh;
Michael Wu8cc9a732008-01-31 19:48:23 +0100730 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700731 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700732
733#ifdef CONFIG_MAC80211_DEBUGFS
Jouni Malinen2b58b202008-08-28 15:12:06 +0300734 struct {
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100735 struct dentry *dir;
Ben Greear295bafb2010-09-22 20:29:01 -0700736 struct dentry *subdir_stations;
Johannes Bergf7e01042010-12-09 19:49:02 +0100737 struct dentry *default_unicast_key;
738 struct dentry *default_multicast_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200739 struct dentry *default_mgmt_key;
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100740 } debugfs;
Jiri Bence9f207f2007-05-05 11:46:38 -0700741#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100742 /* must be last, dynamically sized area in this! */
743 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700744};
745
Johannes Berg32bfd352007-12-19 01:31:26 +0100746static inline
747struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
748{
749 return container_of(p, struct ieee80211_sub_if_data, vif);
750}
751
Johannes Bergc1475ca2010-06-10 10:21:37 +0200752enum sdata_queue_type {
753 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
754 IEEE80211_SDATA_QUEUE_AGG_START = 1,
755 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
756};
757
Jiri Bencf0706e82007-05-05 11:45:53 -0700758enum {
759 IEEE80211_RX_MSG = 1,
760 IEEE80211_TX_STATUS_MSG = 2,
Johannes Berg37fbd902011-09-29 16:04:39 +0200761 IEEE80211_EOSP_MSG = 3,
762};
763
764struct skb_eosp_msg_data {
765 u8 sta[ETH_ALEN], iface[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700766};
767
Kalle Valoce7c9112008-12-18 23:35:20 +0200768enum queue_stop_reason {
769 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200770 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100771 IEEE80211_QUEUE_STOP_REASON_CSA,
772 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100773 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg8f77f382009-06-07 21:58:37 +0200774 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
Kalle Valoce7c9112008-12-18 23:35:20 +0200775};
776
Luciano Coelho65a65382010-12-21 16:02:17 +0200777#ifdef CONFIG_MAC80211_LEDS
Johannes Berge1e54062010-11-30 08:58:45 +0100778struct tpt_led_trigger {
779 struct led_trigger trig;
780 char name[32];
781 const struct ieee80211_tpt_blink *blink_table;
782 unsigned int blink_table_len;
783 struct timer_list timer;
Johannes Berge1e54062010-11-30 08:58:45 +0100784 unsigned long prev_traffic;
785 unsigned long tx_bytes, rx_bytes;
Johannes Berg67408c82010-11-30 08:59:23 +0100786 unsigned int active, want;
787 bool running;
Johannes Berge1e54062010-11-30 08:58:45 +0100788};
Luciano Coelho65a65382010-12-21 16:02:17 +0200789#endif
Johannes Berge1e54062010-11-30 08:58:45 +0100790
Helmut Schaa142b9f52009-07-23 13:18:01 +0200791/**
792 * mac80211 scan flags - currently active scan mode
793 *
794 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
795 * well be on the operating channel
796 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
797 * determine if we are on the operating channel or not
Ben Greear8a690672012-04-17 10:54:16 -0700798 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
799 * channel. This should not interrupt normal traffic.
Johannes Berg8789d452010-08-26 13:30:26 +0200800 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
801 * that the scan completed.
802 * @SCAN_ABORTED: Set for our scan work function when the driver reported
803 * a scan complete for an aborted scan.
Helmut Schaa142b9f52009-07-23 13:18:01 +0200804 */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200805enum {
806 SCAN_SW_SCANNING,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200807 SCAN_HW_SCANNING,
Ben Greear8a690672012-04-17 10:54:16 -0700808 SCAN_ONCHANNEL_SCANNING,
Johannes Berg8789d452010-08-26 13:30:26 +0200809 SCAN_COMPLETED,
810 SCAN_ABORTED,
Helmut Schaa142b9f52009-07-23 13:18:01 +0200811};
812
813/**
814 * enum mac80211_scan_state - scan state machine states
815 *
816 * @SCAN_DECISION: Main entry point to the scan state machine, this state
817 * determines if we should keep on scanning or switch back to the
818 * operating channel
819 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
820 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
Johannes Berg07ef03e2011-11-08 16:21:21 +0100821 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
822 * send out data
823 * @SCAN_RESUME: Resume the scan and scan the next channel
Helmut Schaa142b9f52009-07-23 13:18:01 +0200824 */
825enum mac80211_scan_state {
826 SCAN_DECISION,
827 SCAN_SET_CHANNEL,
828 SCAN_SEND_PROBE,
Johannes Berg07ef03e2011-11-08 16:21:21 +0100829 SCAN_SUSPEND,
830 SCAN_RESUME,
Helmut Schaafbe9c422009-07-23 12:14:04 +0200831};
832
Jiri Bencf0706e82007-05-05 11:45:53 -0700833struct ieee80211_local {
834 /* embed the driver visible part.
835 * don't cast (use the static inlines below), but we keep
836 * it first anyway so they become a no-op */
837 struct ieee80211_hw hw;
838
839 const struct ieee80211_ops *ops;
840
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -0400841 /*
842 * private workqueue to mac80211. mac80211 makes this accessible
843 * via ieee80211_queue_work()
844 */
845 struct workqueue_struct *workqueue;
846
Johannes Berge4e72fb2009-03-23 17:28:42 +0100847 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100848 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200849 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100850
Jiri Bencf0706e82007-05-05 11:45:53 -0700851 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100852 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100853 /* number of interfaces with corresponding FIF_ flags */
Johannes Berg7be50862010-10-13 12:06:24 +0200854 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
855 fif_probe_req;
856 int probe_req_reg;
Johannes Berg4150c572007-09-17 01:29:23 -0400857 unsigned int filter_flags; /* FIF_* */
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200858
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300859 bool wiphy_ciphers_allocated;
860
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200861 /* protects the aggregated multicast list and filter calls */
862 spinlock_t filter_lock;
863
Johannes Berg3ac64be2009-08-17 16:16:53 +0200864 /* used for uploading changed mc list */
865 struct work_struct reconfig_filter;
866
Johannes Berg0f782312009-12-01 13:37:02 +0100867 /* used to reconfigure hardware SM PS */
868 struct work_struct recalc_smps;
869
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200870 /* aggregated multicast list */
Jiri Pirko22bedad32010-04-01 21:22:57 +0000871 struct netdev_hw_addr_list mc_list;
Johannes Berg3b8d81e02009-06-17 17:43:56 +0200872
Johannes Bergd0709a62008-02-25 16:27:46 +0100873 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Berg5bb644a2009-05-17 11:40:42 +0200874
875 /*
876 * suspended is true if we finished all the suspend _and_ we have
877 * not yet come up from resume. This is to be used by mac80211
878 * to ensure driver sanity during suspend and mac80211's own
879 * sanity. It can eventually be used for WoW as well.
880 */
881 bool suspended;
882
883 /*
Johannes Bergceb99fe2009-11-19 14:29:39 +0100884 * Resuming is true while suspended, but when we're reprogramming the
885 * hardware -- at that time it's allowed to use ieee80211_queue_work()
886 * again even though some other parts of the stack are still suspended
887 * and we still drop received frames to avoid waking the stack.
888 */
889 bool resuming;
890
891 /*
Johannes Berg5bb644a2009-05-17 11:40:42 +0200892 * quiescing is true during the suspend process _only_ to
893 * ease timer cancelling etc.
894 */
895 bool quiescing;
896
Johannes Bergea77f122009-08-21 14:44:45 +0200897 /* device is started */
898 bool started;
899
Arik Nemtsov04800ad2012-06-06 11:25:02 +0300900 /* device is during a HW reconfig */
901 bool in_reconfig;
902
Johannes Bergeecc4802011-05-04 15:37:29 +0200903 /* wowlan is enabled -- don't reconfig on resume */
904 bool wowlan;
905
Johannes Bergb306f452007-07-10 19:32:08 +0200906 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700907
Jiri Bencf0706e82007-05-05 11:45:53 -0700908 /* Tasklet and skb queue to process calls from IRQ mode. All frames
909 * added to skb_queue will be processed, but frames in
910 * skb_queue_unreliable may be dropped if the total length of these
911 * queues increases over the limit. */
912#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
913 struct tasklet_struct tasklet;
914 struct sk_buff_head skb_queue;
915 struct sk_buff_head skb_queue_unreliable;
916
Christian Lamparter24a8fda2010-12-30 17:25:29 +0100917 /*
918 * Internal FIFO queue which is shared between multiple rx path
919 * stages. Its main task is to provide a serialization mechanism,
920 * so all rx handlers can enjoy having exclusive access to their
921 * private data structures.
922 */
923 struct sk_buff_head rx_skb_queue;
924 bool running_rx_handler; /* protected by rx_skb_queue.lock */
925
Johannes Bergd0709a62008-02-25 16:27:46 +0100926 /* Station data */
927 /*
Johannes Berg4d339602011-12-15 11:24:20 +0100928 * The mutex only protects the list, hash table and
929 * counter, reads are done with RCU.
Johannes Bergd0709a62008-02-25 16:27:46 +0100930 */
Johannes Berg34e89502010-02-03 13:59:58 +0100931 struct mutex sta_mtx;
Johannes Berg4d339602011-12-15 11:24:20 +0100932 spinlock_t tim_lock;
Johannes Bergd0709a62008-02-25 16:27:46 +0100933 unsigned long num_sta;
Johannes Berg4d339602011-12-15 11:24:20 +0100934 struct list_head sta_list;
Johannes Berg40b275b2011-05-13 14:15:49 +0200935 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
Jiri Bencf0706e82007-05-05 11:45:53 -0700936 struct timer_list sta_cleanup;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200937 int sta_generation;
Jiri Bencf0706e82007-05-05 11:45:53 -0700938
Johannes Berg2a577d92009-03-23 17:28:37 +0100939 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700940 struct tasklet_struct tx_pending_tasklet;
941
Johannes Berga6a67db2010-06-10 10:21:41 +0200942 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100943
Johannes Berg53918992007-09-26 15:19:47 +0200944 /* number of interfaces with corresponding IFF_ flags */
945 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700946
947 struct rate_control_ref *rate_ctrl;
948
Felix Fietkau5f9f1812011-03-25 21:39:19 +0100949 struct crypto_cipher *wep_tx_tfm;
950 struct crypto_cipher *wep_rx_tfm;
Jiri Bencf0706e82007-05-05 11:45:53 -0700951 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700952
Johannes Bergc771c9d2009-01-23 22:54:03 +0100953 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400954 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100955 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400956
Johannes Bergb16bd152008-04-11 21:40:35 +0200957 /*
Johannes Bergad0e2b52010-06-01 10:19:19 +0200958 * Key mutex, protects sdata's key_list and sta_info's
Johannes Bergb16bd152008-04-11 21:40:35 +0200959 * key pointers (write access, they're RCU.)
960 */
Johannes Bergad0e2b52010-06-01 10:19:19 +0200961 struct mutex key_mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200962
Johannes Berga1699b72010-07-30 16:46:07 +0200963 /* mutex for scan and work locking */
964 struct mutex mtx;
Johannes Bergb16bd152008-04-11 21:40:35 +0200965
Johannes Bergc2b13452008-09-11 00:01:55 +0200966 /* Scanning and BSS list */
Helmut Schaafbe9c422009-07-23 12:14:04 +0200967 unsigned long scanning;
Johannes Berg2a519312009-02-10 21:25:55 +0100968 struct cfg80211_ssid scan_ssid;
Johannes Berg5ba63532009-08-07 17:54:07 +0200969 struct cfg80211_scan_request *int_scan_req;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100970 struct cfg80211_scan_request *scan_req, *hw_scan_req;
Johannes Berg2a519312009-02-10 21:25:55 +0100971 struct ieee80211_channel *scan_channel;
Johannes Berg4d36ec582009-10-27 20:59:55 +0100972 enum ieee80211_band hw_scan_band;
Jiri Bencf0706e82007-05-05 11:45:53 -0700973 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +0200974 int scan_ies_len;
Johannes Berg8318d782008-01-24 19:38:38 +0100975
Luciano Coelho85a99942011-05-12 16:28:29 +0300976 struct work_struct sched_scan_stopped_work;
Johannes Berg5260a5b2012-07-06 21:55:11 +0200977 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
Luciano Coelho79f460c2011-05-11 17:09:36 +0300978
Helmut Schaadf13cce2010-02-24 14:19:21 +0100979 unsigned long leave_oper_channel_time;
Helmut Schaa977923b2009-07-23 12:14:20 +0200980 enum mac80211_scan_state next_scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -0700981 struct delayed_work scan_work;
Johannes Berge2fd5db2012-07-06 21:39:28 +0200982 struct ieee80211_sub_if_data __rcu *scan_sdata;
Johannes Berg0aaffa92010-05-05 15:28:27 +0200983 enum nl80211_channel_type _oper_channel_type;
Johannes Berg2a519312009-02-10 21:25:55 +0100984 struct ieee80211_channel *oper_channel, *csa_channel;
Jiri Bencf0706e82007-05-05 11:45:53 -0700985
Johannes Bergb8bc4b02009-12-23 13:15:42 +0100986 /* Temporary remain-on-channel for off-channel operations */
987 struct ieee80211_channel *tmp_channel;
988 enum nl80211_channel_type tmp_channel_type;
989
Jiri Bencf0706e82007-05-05 11:45:53 -0700990 /* SNMP counters */
991 /* dot11CountersTable */
992 u32 dot11TransmittedFragmentCount;
993 u32 dot11MulticastTransmittedFrameCount;
994 u32 dot11FailedCount;
995 u32 dot11RetryCount;
996 u32 dot11MultipleRetryCount;
997 u32 dot11FrameDuplicateCount;
998 u32 dot11ReceivedFragmentCount;
999 u32 dot11MulticastReceivedFrameCount;
1000 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -07001001
1002#ifdef CONFIG_MAC80211_LEDS
1003 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001004 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
Johannes Berge1e54062010-11-30 08:58:45 +01001005 struct tpt_led_trigger *tpt_led_trigger;
Ivo van Doorncdcb0062008-01-07 19:45:24 +01001006 char tx_led_name[32], rx_led_name[32],
1007 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -07001008#endif
1009
Jiri Bencf0706e82007-05-05 11:45:53 -07001010#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1011 /* TX/RX handler statistics */
1012 unsigned int tx_handlers_drop;
1013 unsigned int tx_handlers_queued;
1014 unsigned int tx_handlers_drop_unencrypted;
1015 unsigned int tx_handlers_drop_fragment;
1016 unsigned int tx_handlers_drop_wep;
1017 unsigned int tx_handlers_drop_not_assoc;
1018 unsigned int tx_handlers_drop_unauth_port;
1019 unsigned int rx_handlers_drop;
1020 unsigned int rx_handlers_queued;
1021 unsigned int rx_handlers_drop_nullfunc;
1022 unsigned int rx_handlers_drop_defrag;
1023 unsigned int rx_handlers_drop_short;
Jiri Bencf0706e82007-05-05 11:45:53 -07001024 unsigned int tx_expand_skb_head;
1025 unsigned int tx_expand_skb_head_cloned;
1026 unsigned int rx_expand_skb_head;
1027 unsigned int rx_expand_skb_head2;
1028 unsigned int rx_handlers_fragments;
1029 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -07001030#define I802_DEBUG_INC(c) (c)++
1031#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1032#define I802_DEBUG_INC(c) do { } while (0)
1033#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1034
1035
Jiri Bencf0706e82007-05-05 11:45:53 -07001036 int total_ps_buffered; /* total number of all buffered unicast and
1037 * multicast packets for power saving stations
1038 */
Kalle Valo520eb822008-12-18 23:35:27 +02001039
Kalle Valo572e0012009-02-10 17:09:31 +02001040 bool pspolling;
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001041 bool offchannel_ps_enabled;
Johannes Berg965beda2009-04-16 13:17:24 +02001042 /*
1043 * PS can only be enabled when we have exactly one managed
1044 * interface (and monitors) in PS, this then points there.
1045 */
1046 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +02001047 struct work_struct dynamic_ps_enable_work;
1048 struct work_struct dynamic_ps_disable_work;
1049 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +02001050 struct notifier_block network_latency_notifier;
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001051 struct notifier_block ifa_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -07001052
Juuso Oikarinenff616382010-06-09 09:51:52 +03001053 /*
1054 * The dynamic ps timeout configured from user space via WEXT -
1055 * this will override whatever chosen by mac80211 internally.
1056 */
1057 int dynamic_ps_forced_timeout;
Juuso Oikarinenf90754c2010-06-21 08:59:39 +03001058 int dynamic_ps_user_timeout;
1059 bool disable_dynamic_ps;
Juuso Oikarinenff616382010-06-09 09:51:52 +03001060
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001061 int user_power_level; /* in dBm */
Johannes Berg04b7b2f2012-09-05 13:41:37 +02001062 int ap_power_level; /* in dBm */
Johannes Berg2bf30fa2009-01-06 23:23:56 +01001063
Johannes Berg0f782312009-12-01 13:37:02 +01001064 enum ieee80211_smps_mode smps_mode;
1065
Johannes Bergf2753dd2009-04-14 10:09:24 +02001066 struct work_struct restart_work;
1067
Jiri Bence9f207f2007-05-05 11:46:38 -07001068#ifdef CONFIG_MAC80211_DEBUGFS
1069 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +02001070 struct dentry *rcdir;
Jiri Bence9f207f2007-05-05 11:46:38 -07001071 struct dentry *keys;
1072 } debugfs;
1073#endif
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001074
Johannes Berg2eb278e2012-06-05 14:28:42 +02001075 /*
1076 * Remain-on-channel support
1077 */
1078 struct list_head roc_list;
Johannes Berg21f83582010-12-18 17:20:47 +01001079 struct work_struct hw_roc_start, hw_roc_done;
Johannes Berg2eb278e2012-06-05 14:28:42 +02001080 unsigned long hw_roc_start_time;
Johannes Berg21f83582010-12-18 17:20:47 +01001081
Johannes Berga729cff2011-11-06 14:13:34 +01001082 struct idr ack_status_frames;
1083 spinlock_t ack_status_lock;
1084
Johannes Bergf142c6b2012-06-18 20:07:15 +02001085 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1086
John W. Linville4e6cbfd2010-07-29 16:14:13 -04001087 /* dummy netdev for use w/ NAPI */
1088 struct net_device napi_dev;
1089
1090 struct napi_struct napi;
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02001091
1092 /* virtual monitor interface */
1093 struct ieee80211_sub_if_data __rcu *monitor_sdata;
Jiri Bencf0706e82007-05-05 11:45:53 -07001094};
1095
Johannes Berg3e122be2008-07-09 14:40:34 +02001096static inline struct ieee80211_sub_if_data *
1097IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1098{
Johannes Berg3e122be2008-07-09 14:40:34 +02001099 return netdev_priv(dev);
1100}
1101
Johannes Berg71bbc992012-06-15 15:30:18 +02001102static inline struct ieee80211_sub_if_data *
1103IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1104{
1105 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1106}
1107
Johannes Bergc1475ca2010-06-10 10:21:37 +02001108/* this struct represents 802.11n's RA/TID combination */
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +02001109struct ieee80211_ra_tid {
1110 u8 ra[ETH_ALEN];
1111 u16 tid;
1112};
1113
Johannes Bergdd769862011-11-18 16:54:50 +01001114/* Parsed Information Elements */
1115struct ieee802_11_elems {
1116 u8 *ie_start;
1117 size_t total_len;
1118
1119 /* pointers to IEs */
1120 u8 *ssid;
1121 u8 *supp_rates;
1122 u8 *fh_params;
1123 u8 *ds_params;
1124 u8 *cf_params;
1125 struct ieee80211_tim_ie *tim;
1126 u8 *ibss_params;
1127 u8 *challenge;
1128 u8 *wpa;
1129 u8 *rsn;
1130 u8 *erp_info;
1131 u8 *ext_supp_rates;
1132 u8 *wmm_info;
1133 u8 *wmm_param;
1134 struct ieee80211_ht_cap *ht_cap_elem;
Johannes Berg074d46d2012-03-15 19:45:16 +01001135 struct ieee80211_ht_operation *ht_operation;
Johannes Bergdd769862011-11-18 16:54:50 +01001136 struct ieee80211_meshconf_ie *mesh_config;
1137 u8 *mesh_id;
1138 u8 *peering;
1139 u8 *preq;
1140 u8 *prep;
1141 u8 *perr;
1142 struct ieee80211_rann_ie *rann;
Johannes Berg5bc14202012-08-01 16:13:02 +02001143 struct ieee80211_channel_sw_ie *ch_switch_ie;
Johannes Bergdd769862011-11-18 16:54:50 +01001144 u8 *country_elem;
1145 u8 *pwr_constr_elem;
1146 u8 *quiet_elem; /* first quite element */
1147 u8 *timeout_int;
1148
1149 /* length of them, respectively */
1150 u8 ssid_len;
1151 u8 supp_rates_len;
1152 u8 fh_params_len;
1153 u8 ds_params_len;
1154 u8 cf_params_len;
1155 u8 tim_len;
1156 u8 ibss_params_len;
1157 u8 challenge_len;
1158 u8 wpa_len;
1159 u8 rsn_len;
1160 u8 erp_info_len;
1161 u8 ext_supp_rates_len;
1162 u8 wmm_info_len;
1163 u8 wmm_param_len;
1164 u8 mesh_id_len;
1165 u8 peering_len;
1166 u8 preq_len;
1167 u8 prep_len;
1168 u8 perr_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001169 u8 country_elem_len;
Johannes Bergdd769862011-11-18 16:54:50 +01001170 u8 quiet_elem_len;
1171 u8 num_of_quiet_elem; /* can be more the one */
1172 u8 timeout_int_len;
Paul Stewartfcff4f12012-02-23 17:59:53 -08001173
1174 /* whether a parse error occurred while retrieving these elements */
1175 bool parse_error;
Johannes Bergdd769862011-11-18 16:54:50 +01001176};
1177
Jiri Bencf0706e82007-05-05 11:45:53 -07001178static inline struct ieee80211_local *hw_to_local(
1179 struct ieee80211_hw *hw)
1180{
1181 return container_of(hw, struct ieee80211_local, hw);
1182}
1183
Jiri Bencf0706e82007-05-05 11:45:53 -07001184
Johannes Berg571ecf62007-07-27 15:43:22 +02001185static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1186{
Joe Perchesb203ca32012-05-08 18:56:52 +00001187 return ether_addr_equal(raddr, addr) ||
Johannes Berg571ecf62007-07-27 15:43:22 +02001188 is_broadcast_ether_addr(raddr);
1189}
1190
1191
Johannes Berge8975582008-10-09 12:18:51 +02001192int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +01001193void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001194void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1195 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +02001196void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001197u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001198
Johannes Berg46900292009-02-15 12:44:28 +01001199/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +02001200void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001201int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1202 struct cfg80211_auth_request *req);
1203int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1204 struct cfg80211_assoc_request *req);
1205int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001206 struct cfg80211_deauth_request *req);
Johannes Berg77fdaa12009-07-07 03:45:17 +02001207int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg63c9c5e2012-02-24 13:50:51 +01001208 struct cfg80211_disassoc_request *req);
Kalle Valo572e0012009-02-10 17:09:31 +02001209void ieee80211_send_pspoll(struct ieee80211_local *local,
1210 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001211void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
Eliad Pellerab095872012-07-27 12:33:22 +03001212void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +02001213int ieee80211_max_network_latency(struct notifier_block *nb,
1214 unsigned long data, void *dummy);
Juuso Oikarinen2b2c0092010-05-27 15:32:13 +03001215int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
Johannes Bergcc32abd2009-05-15 11:52:31 +02001216void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1217 struct ieee80211_channel_sw_ie *sw_elem,
Johannes Berg5ce6e432010-05-11 16:20:57 +02001218 struct ieee80211_bss *bss,
1219 u64 timestamp);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001220void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1221void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001222void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1223void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1224 struct sk_buff *skb);
Luis R. Rodriguezd3a910a2010-09-16 15:12:32 -04001225void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
Luis R. Rodriguezbe099e82010-09-16 15:12:29 -04001226void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
Eliad Pellerafa762f2012-04-23 14:45:15 +03001227void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001228
Johannes Berg46900292009-02-15 12:44:28 +01001229/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +01001230void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1231void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg8bf11d82011-12-15 11:17:37 +01001232void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1233 const u8 *bssid, const u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001234int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1235 struct cfg80211_ibss_params *params);
1236int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001237void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1238void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
Johannes Berg1fa57d02010-06-10 10:21:32 +02001239void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1240void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1241 struct sk_buff *skb);
1242
1243/* mesh code */
1244void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1245void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1246 struct sk_buff *skb);
Johannes Berg46900292009-02-15 12:44:28 +01001247
Johannes Berg9c6bd792008-09-11 00:01:52 +02001248/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +01001249void ieee80211_scan_work(struct work_struct *work);
Johannes Bergf3b85252009-04-23 16:01:47 +02001250int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
Johannes Bergbe4a4b62010-05-03 08:49:48 +02001251 const u8 *ssid, u8 ssid_len,
1252 struct ieee80211_channel *chan);
Johannes Bergc2b13452008-09-11 00:01:55 +02001253int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +01001254 struct cfg80211_scan_request *req);
Johannes Berg5bb644a2009-05-17 11:40:42 +02001255void ieee80211_scan_cancel(struct ieee80211_local *local);
Stanislaw Gruszka133d40f2012-03-28 16:01:19 +02001256void ieee80211_run_deferred_scan(struct ieee80211_local *local);
Johannes Bergd48b2962012-07-06 22:19:27 +02001257void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001258
Johannes Berg0a51b272008-09-08 17:44:25 +02001259void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +02001260struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001261ieee80211_bss_info_update(struct ieee80211_local *local,
1262 struct ieee80211_rx_status *rx_status,
1263 struct ieee80211_mgmt *mgmt,
1264 size_t len,
1265 struct ieee802_11_elems *elems,
Johannes Berg2a519312009-02-10 21:25:55 +01001266 struct ieee80211_channel *channel,
1267 bool beacon);
Johannes Berg98c8fcc2008-09-08 17:44:26 +02001268void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +02001269 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +01001270
Luciano Coelho79f460c2011-05-11 17:09:36 +03001271/* scheduled scan handling */
1272int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1273 struct cfg80211_sched_scan_request *req);
Luciano Coelho85a99942011-05-12 16:28:29 +03001274int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1275void ieee80211_sched_scan_stopped_work(struct work_struct *work);
Luciano Coelho79f460c2011-05-11 17:09:36 +03001276
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001277/* off-channel helpers */
Ben Greearb23b0252011-02-04 11:54:17 -08001278void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1279 bool offchannel_ps_enable);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001280void ieee80211_offchannel_return(struct ieee80211_local *local,
Ben Greearb23b0252011-02-04 11:54:17 -08001281 bool offchannel_ps_disable);
Johannes Berg2eb278e2012-06-05 14:28:42 +02001282void ieee80211_roc_setup(struct ieee80211_local *local);
1283void ieee80211_start_next_roc(struct ieee80211_local *local);
1284void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1285void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1286void ieee80211_sw_roc_work(struct work_struct *work);
1287void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
Jouni Malinenb203ffc2009-12-23 13:15:40 +01001288
Johannes Berg3e122be2008-07-09 14:40:34 +02001289/* interface handling */
Johannes Berg47846c92009-11-25 17:46:19 +01001290int ieee80211_iface_init(void);
1291void ieee80211_iface_exit(void);
Johannes Berg3e122be2008-07-09 14:40:34 +02001292int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg84efbb82012-06-16 00:00:26 +02001293 struct wireless_dev **new_wdev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +01001294 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +02001295int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +02001296 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001297void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +02001298void ieee80211_remove_interfaces(struct ieee80211_local *local);
Johannes Berg5cff20e2009-04-29 12:26:17 +02001299void ieee80211_recalc_idle(struct ieee80211_local *local);
Christian Lamparter85416a42010-10-02 13:17:07 +02001300void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1301 const int offset);
Johannes Bergf142c6b2012-06-18 20:07:15 +02001302int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1303void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -07001304
Johannes Berg9607e6b2009-12-23 13:15:31 +01001305static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1306{
Johannes Berg34d4bc42010-08-27 12:35:58 +02001307 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
Johannes Berg9607e6b2009-12-23 13:15:31 +01001308}
1309
Johannes Berge2ebc742007-07-27 15:43:22 +02001310/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +02001311void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1312void ieee80211_tx_pending(unsigned long data);
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +00001313netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1314 struct net_device *dev);
1315netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1316 struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +02001317
Johannes Bergde1ede72008-09-09 14:42:50 +02001318/* HT */
Ben Greearef96a8422011-11-18 11:32:00 -08001319void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1320 struct ieee80211_sta_ht_cap *ht_cap);
1321void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1322 struct ieee80211_supported_band *sband,
Johannes Bergae5eb022008-10-14 16:58:37 +02001323 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001324 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergb8695a82009-02-10 21:25:46 +01001325void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1326 const u8 *da, u16 tid,
1327 u16 initiator, u16 reason_code);
Johannes Berg0f782312009-12-01 13:37:02 +01001328int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1329 enum ieee80211_smps_mode smps, const u8 *da,
1330 const u8 *bssid);
Johannes Bergd1f5b7a2010-08-05 17:05:55 +02001331void ieee80211_request_smps_work(struct work_struct *work);
Johannes Bergde1ede72008-09-09 14:42:50 +02001332
Johannes Berg7c3b1dd2010-06-10 10:21:44 +02001333void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001334 u16 initiator, u16 reason, bool stop);
Johannes Berg849b7962009-02-10 21:25:54 +01001335void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001336 u16 initiator, u16 reason, bool stop);
1337void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
Johannes Bergde1ede72008-09-09 14:42:50 +02001338void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1339 struct sta_info *sta,
1340 struct ieee80211_mgmt *mgmt, size_t len);
1341void ieee80211_process_addba_resp(struct ieee80211_local *local,
1342 struct sta_info *sta,
1343 struct ieee80211_mgmt *mgmt,
1344 size_t len);
1345void ieee80211_process_addba_request(struct ieee80211_local *local,
1346 struct sta_info *sta,
1347 struct ieee80211_mgmt *mgmt,
1348 size_t len);
1349
Johannes Berg849b7962009-02-10 21:25:54 +01001350int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001351 enum ieee80211_back_parties initiator,
1352 bool tx);
Johannes Berg67c282c2010-06-10 10:21:43 +02001353int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
Johannes Berg53f73c02010-10-05 19:37:40 +02001354 enum ieee80211_back_parties initiator,
1355 bool tx);
Johannes Berg5d22c892010-06-10 10:21:40 +02001356void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1357void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
Johannes Berg67c282c2010-06-10 10:21:43 +02001358void ieee80211_ba_session_work(struct work_struct *work);
1359void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
Christian Lamparter2bff8eb2010-08-05 01:36:41 +02001360void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
Johannes Berg849b7962009-02-10 21:25:54 +01001361
Johannes Berg39192c02008-09-09 14:49:03 +02001362/* Spectrum management */
1363void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1364 struct ieee80211_mgmt *mgmt,
1365 size_t len);
1366
Johannes Bergf2753dd2009-04-14 10:09:24 +02001367/* Suspend/resume and hw reconfiguration */
1368int ieee80211_reconfig(struct ieee80211_local *local);
Johannes Berg84f6a012009-08-20 20:02:20 +02001369void ieee80211_stop_device(struct ieee80211_local *local);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001370
Johannes Bergeecc4802011-05-04 15:37:29 +02001371int __ieee80211_suspend(struct ieee80211_hw *hw,
1372 struct cfg80211_wowlan *wowlan);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001373
1374static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1375{
John W. Linville85f72bc2010-09-01 16:12:28 -04001376 struct ieee80211_local *local = hw_to_local(hw);
1377
1378 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1379 "%s: resume with hardware scan still in progress\n",
1380 wiphy_name(hw->wiphy));
1381
Johannes Bergf2753dd2009-04-14 10:09:24 +02001382 return ieee80211_reconfig(hw_to_local(hw));
1383}
Bob Copeland665af4f2009-01-19 11:20:53 -05001384
Johannes Bergc2d15602007-07-27 15:43:23 +02001385/* utility functions/constants */
1386extern void *mac80211_wiphy_privid; /* for wiphy privid */
Ron Rindjunsky71364712007-12-25 17:00:36 +02001387u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001388 enum nl80211_iftype type);
Michal Kazior4ee73f32012-04-11 08:47:56 +02001389int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
Johannes Bergc2d15602007-07-27 15:43:23 +02001390 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001391void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Berge6d6e342009-07-01 21:26:47 +02001392 struct ieee80211_hdr *hdr, const u8 *tsc,
1393 gfp_t gfp);
Johannes Berg3abead52012-03-02 15:56:59 +01001394void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1395 bool bss_notify);
Johannes Bergce662b442011-09-29 16:04:34 +02001396void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
Helmut Schaacf6bb792011-12-15 10:18:34 +01001397
1398void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1399 struct sk_buff *skb, int tid);
1400static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1401 struct sk_buff *skb)
1402{
1403 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1404 ieee80211_tx_skb_tid(sdata, skb, 7);
1405}
1406
Johannes Berg9c6bd792008-09-11 00:01:52 +02001407void ieee802_11_parse_elems(u8 *start, size_t len,
1408 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001409u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1410 struct ieee802_11_elems *elems,
1411 u64 filter, u32 crc);
Johannes Berg881d9482009-01-21 15:13:48 +01001412u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001413 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001414
Kalle Valo520eb822008-12-18 23:35:27 +02001415void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1416void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1417void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001418void ieee80211_send_nullfunc(struct ieee80211_local *local,
1419 struct ieee80211_sub_if_data *sdata,
1420 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001421void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1422 struct ieee80211_hdr *hdr);
Felix Fietkau4e5ff372010-11-23 03:10:31 +01001423void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
Felix Fietkau04ac3c02010-12-02 21:01:08 +01001424 struct ieee80211_hdr *hdr, bool ack);
Kalle Valo520eb822008-12-18 23:35:27 +02001425
Kalle Valoce7c9112008-12-18 23:35:20 +02001426void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1427 enum queue_stop_reason reason);
1428void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1429 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001430void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1431 enum queue_stop_reason reason);
1432void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1433 enum queue_stop_reason reason);
Johannes Berg3a25a8c2012-04-03 16:28:50 +02001434void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
Johannes Berg8f77f382009-06-07 21:58:37 +02001435void ieee80211_add_pending_skb(struct ieee80211_local *local,
1436 struct sk_buff *skb);
Johannes Bergb0b97a82011-09-29 16:04:30 +02001437void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1438 struct sk_buff_head *skbs,
1439 void (*fn)(void *data), void *data);
Johannes Berg78307da2012-03-27 14:18:39 +02001440static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1441 struct sk_buff_head *skbs)
1442{
1443 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1444}
Kalle Valoce7c9112008-12-18 23:35:20 +02001445
Johannes Berg46900292009-02-15 12:44:28 +01001446void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1447 u16 transaction, u16 auth_alg,
Johannes Bergfffd0932009-07-08 14:22:54 +02001448 u8 *extra, size_t extra_len, const u8 *bssid,
Antonio Quartulliefa6a092012-01-09 19:43:06 +01001449 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
Antonio Quartulli6ae16772012-09-07 13:28:52 +02001450void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1451 const u8 *bssid, u16 stype, u16 reason,
1452 bool send_frame, u8 *frame_buf);
Johannes Bergde95a542009-04-01 11:58:36 +02001453int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
Johannes Berg4d36ec582009-10-27 20:59:55 +01001454 const u8 *ie, size_t ie_len,
Jouni Malinen651b5222010-08-28 19:37:51 +03001455 enum ieee80211_band band, u32 rate_mask,
1456 u8 channel);
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001457struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
Johannes Berg85a237f2011-07-18 18:08:36 +02001458 u8 *dst, u32 ratemask,
Johannes Berg6b778632012-07-23 14:53:27 +02001459 struct ieee80211_channel *chan,
Juuso Oikarinena619a4c2010-11-11 08:50:18 +02001460 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001461 const u8 *ie, size_t ie_len,
1462 bool directed);
Johannes Berg46900292009-02-15 12:44:28 +01001463void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001464 const u8 *ssid, size_t ssid_len,
Paul Stewarta806c552011-06-23 09:00:11 -08001465 const u8 *ie, size_t ie_len,
Johannes Bergfe94fe02012-07-30 12:26:34 +02001466 u32 ratemask, bool directed, bool no_cck,
1467 struct ieee80211_channel *channel);
Johannes Berg46900292009-02-15 12:44:28 +01001468
1469void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1470 const size_t supp_rates_len,
1471 const u8 *supp_rates);
1472u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1473 struct ieee802_11_elems *elems,
Ashok Nagarajan9ebb61a2012-04-02 21:21:21 -07001474 enum ieee80211_band band, u32 *basic_rates);
Johannes Berg0f782312009-12-01 13:37:02 +01001475int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1476 enum ieee80211_smps_mode smps_mode);
Johannes Berg025e6be2010-10-05 10:41:47 +02001477void ieee80211_recalc_smps(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +01001478
Johannes Berg8e664fb2009-12-23 13:15:38 +01001479size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1480 const u8 *ids, int n_ids, size_t offset);
1481size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
Ben Greearef96a8422011-11-18 11:32:00 -08001482u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
Alexander Simon42e7aa72011-10-26 14:47:26 -07001483 u16 cap);
Johannes Berg074d46d2012-03-15 19:45:16 +01001484u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1485 struct ieee80211_channel *channel,
Ashok Nagarajan431e3152012-04-30 14:20:29 -07001486 enum nl80211_channel_type channel_type,
1487 u16 prot_mode);
Mahesh Palivelaba0afa2f2012-07-02 11:25:12 +00001488u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1489 u32 cap);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001490int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001491 struct sk_buff *skb, bool need_basic,
1492 enum ieee80211_band band);
Johannes Bergfc8a7322012-06-28 10:33:25 +02001493int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
Johannes Berg6b778632012-07-23 14:53:27 +02001494 struct sk_buff *skb, bool need_basic,
1495 enum ieee80211_band band);
Johannes Berg8e664fb2009-12-23 13:15:38 +01001496
Johannes Bergf444de02010-05-05 15:25:02 +02001497/* channel management */
1498enum ieee80211_chan_mode {
1499 CHAN_MODE_UNDEFINED,
1500 CHAN_MODE_HOPPING,
1501 CHAN_MODE_FIXED,
1502};
1503
1504enum ieee80211_chan_mode
1505ieee80211_get_channel_mode(struct ieee80211_local *local,
1506 struct ieee80211_sub_if_data *ignore);
Johannes Berg0aaffa92010-05-05 15:28:27 +02001507bool ieee80211_set_channel_type(struct ieee80211_local *local,
1508 struct ieee80211_sub_if_data *sdata,
1509 enum nl80211_channel_type chantype);
Alexander Simon42e7aa72011-10-26 14:47:26 -07001510enum nl80211_channel_type
Johannes Berg074d46d2012-03-15 19:45:16 +01001511ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
Johannes Bergf444de02010-05-05 15:25:02 +02001512
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001513#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001514#define debug_noinline noinline
1515#else
1516#define debug_noinline
1517#endif
1518
Jiri Bencf0706e82007-05-05 11:45:53 -07001519#endif /* IEEE80211_I_H */