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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>
Johannes Berge039fa42008-05-15 12:55:29 +02005 * Copyright 2007-2008 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>
colin@cozybit.com93da9cc2008-10-21 12:03:48 -070026#include <net/cfg80211.h>
Jiri Bencf0706e82007-05-05 11:45:53 -070027#include <net/wireless.h>
David S. Millerccc58052008-06-16 18:50:49 -070028#include <net/iw_handler.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070029#include <net/mac80211.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040030#include "key.h"
Jiri Bencf0706e82007-05-05 11:45:53 -070031#include "sta_info.h"
32
Johannes Berg9cfb0002008-04-03 15:17:31 +020033struct ieee80211_local;
Jiri Bencf0706e82007-05-05 11:45:53 -070034
35/* Maximum number of broadcast/multicast frames to buffer when some of the
36 * associated stations are using power saving. */
37#define AP_MAX_BC_BUFFER 128
38
39/* Maximum number of frames buffered to all STAs, including multicast frames.
40 * Note: increasing this limit increases the potential memory requirement. Each
41 * frame can be up to about 2 kB long. */
42#define TOTAL_MAX_TX_BUFFER 512
43
44/* Required encryption head and tailroom */
45#define IEEE80211_ENCRYPT_HEADROOM 8
Jouni Malinen765cb462009-01-08 13:32:01 +020046#define IEEE80211_ENCRYPT_TAILROOM 18
Jiri Bencf0706e82007-05-05 11:45:53 -070047
48/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
49 * reception of at least three fragmented frames. This limit can be increased
50 * by changing this define, at the cost of slower frame reassembly and
51 * increased memory use (about 2 kB of RAM per entry). */
52#define IEEE80211_FRAGMENT_MAX 4
53
Johannes Berg0a51b272008-09-08 17:44:25 +020054/*
55 * Time after which we ignore scan results and no longer report/use
56 * them in any way.
57 */
58#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
59
Johannes Berg20ad19d2009-02-10 21:25:45 +010060#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
61
Jiri Bencf0706e82007-05-05 11:45:53 -070062struct ieee80211_fragment_entry {
63 unsigned long first_frag_time;
64 unsigned int seq;
65 unsigned int rx_queue;
66 unsigned int last_frag;
67 unsigned int extra_len;
68 struct sk_buff_head skb_list;
69 int ccmp; /* Whether fragments were encrypted with CCMP */
70 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
71};
72
73
Johannes Bergc2b13452008-09-11 00:01:55 +020074struct ieee80211_bss {
Johannes Berg00d3f142009-02-10 21:26:00 +010075 /* Yes, this is a hack */
76 struct cfg80211_bss cbss;
77
78 /* don't want to look up all the time */
Johannes Berg056cdd52008-03-26 23:21:47 +010079 size_t ssid_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070080 u8 ssid[IEEE80211_MAX_SSID_LEN];
Johannes Berg00d3f142009-02-10 21:26:00 +010081
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080082 u8 dtim_period;
Johannes Berg00d3f142009-02-10 21:26:00 +010083
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030084 bool wmm_used;
Johannes Berg00d3f142009-02-10 21:26:00 +010085
86 unsigned long last_probe_resp;
87
Luis Carlos Coboee385852008-02-23 15:17:11 +010088#ifdef CONFIG_MAC80211_MESH
89 u8 *mesh_id;
90 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040091 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010092#endif
Johannes Berg00d3f142009-02-10 21:26:00 +010093
Jiri Bencf0706e82007-05-05 11:45:53 -070094#define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070097
Johannes Berg00d3f142009-02-10 21:26:00 +010098 /*
99 * During assocation, we save an ERP value from a probe response so
Daniel Drake56282212007-07-10 19:32:10 +0200100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
Johannes Berg00d3f142009-02-10 21:26:00 +0100102 * otherwise, you probably don't want to use them.
103 */
104 bool has_erp_value;
Daniel Drake56282212007-07-10 19:32:10 +0200105 u8 erp_value;
Jiri Bencf0706e82007-05-05 11:45:53 -0700106};
107
Johannes Bergc2b13452008-09-11 00:01:55 +0200108static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100109{
110#ifdef CONFIG_MAC80211_MESH
111 return bss->mesh_cfg;
112#endif
113 return NULL;
114}
115
Johannes Bergc2b13452008-09-11 00:01:55 +0200116static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100117{
118#ifdef CONFIG_MAC80211_MESH
119 return bss->mesh_id;
120#endif
121 return NULL;
122}
123
Johannes Bergc2b13452008-09-11 00:01:55 +0200124static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100125{
126#ifdef CONFIG_MAC80211_MESH
127 return bss->mesh_id_len;
128#endif
129 return 0;
130}
131
Jiri Bencf0706e82007-05-05 11:45:53 -0700132
Johannes Berg9ae54c82008-01-31 19:48:20 +0100133typedef unsigned __bitwise__ ieee80211_tx_result;
134#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
135#define TX_DROP ((__force ieee80211_tx_result) 1u)
136#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
137
Johannes Berg5cf121c2008-02-25 16:27:43 +0100138#define IEEE80211_TX_FRAGMENTED BIT(0)
139#define IEEE80211_TX_UNICAST BIT(1)
140#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100141
Johannes Berg5cf121c2008-02-25 16:27:43 +0100142struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700143 struct sk_buff *skb;
144 struct net_device *dev;
145 struct ieee80211_local *local;
146 struct ieee80211_sub_if_data *sdata;
147 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700148 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700149
Johannes Berg5cf121c2008-02-25 16:27:43 +0100150 struct ieee80211_channel *channel;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100151
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700152 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100153 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100154};
155
156
157typedef unsigned __bitwise__ ieee80211_rx_result;
158#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
159#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
160#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
161#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
162
163#define IEEE80211_RX_IN_SCAN BIT(0)
164/* frame is destined to interface currently processed (incl. multicast frames) */
165#define IEEE80211_RX_RA_MATCH BIT(1)
166#define IEEE80211_RX_AMSDU BIT(2)
167#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
168#define IEEE80211_RX_FRAGMENTED BIT(4)
169
170struct ieee80211_rx_data {
171 struct sk_buff *skb;
172 struct net_device *dev;
173 struct ieee80211_local *local;
174 struct ieee80211_sub_if_data *sdata;
175 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100176 struct ieee80211_key *key;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100177 struct ieee80211_rx_status *status;
178 struct ieee80211_rate *rate;
Johannes Berg056cdd52008-03-26 23:21:47 +0100179
Johannes Berg056cdd52008-03-26 23:21:47 +0100180 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100181 int sent_ps_buffered;
182 int queue;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100183 u32 tkip_iv32;
184 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700185};
186
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100187struct beacon_data {
188 u8 *head, *tail;
189 int head_len, tail_len;
190 int dtim_period;
191};
192
Jiri Bencf0706e82007-05-05 11:45:53 -0700193struct ieee80211_if_ap {
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100194 struct beacon_data *beacon;
Jiri Bencf0706e82007-05-05 11:45:53 -0700195
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400196 struct list_head vlans;
197
Jiri Bencf0706e82007-05-05 11:45:53 -0700198 /* yes, this looks ugly, but guarantees that we can later use
199 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100200 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e82007-05-05 11:45:53 -0700201 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e82007-05-05 11:45:53 -0700202 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100203 atomic_t num_sta_ps; /* number of stations in PS mode */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100204 int dtim_count;
Jiri Bencf0706e82007-05-05 11:45:53 -0700205};
206
207struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700208 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100209 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700210};
211
212struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400213 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700214};
215
Luis Carlos Coboee385852008-02-23 15:17:11 +0100216struct mesh_stats {
217 __u32 fwded_frames; /* Mesh forwarded frames */
218 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
219 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
220 atomic_t estab_plinks;
221};
222
223#define PREQ_Q_F_START 0x1
224#define PREQ_Q_F_REFRESH 0x2
225struct mesh_preq_queue {
226 struct list_head list;
227 u8 dst[ETH_ALEN];
228 u8 flags;
229};
230
Johannes Berg46900292009-02-15 12:44:28 +0100231/* flags used in struct ieee80211_if_managed.flags */
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400232#define IEEE80211_STA_SSID_SET BIT(0)
233#define IEEE80211_STA_BSSID_SET BIT(1)
234#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
235#define IEEE80211_STA_AUTHENTICATED BIT(3)
236#define IEEE80211_STA_ASSOCIATED BIT(4)
237#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
238#define IEEE80211_STA_CREATE_IBSS BIT(6)
Johannes Berg7986cf92009-03-21 17:08:43 +0100239/* hole at 7, please re-use */
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400240#define IEEE80211_STA_WMM_ENABLED BIT(8)
Johannes Berg7986cf92009-03-21 17:08:43 +0100241/* hole at 9, please re-use */
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400242#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
243#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
244#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
Johannes Berg5b98b1f2007-11-03 13:11:10 +0000245#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
Vasanthakumar Thiagarajaneb469362008-12-23 21:30:50 +0530246#define IEEE80211_STA_TKIP_WEP_USED BIT(14)
Sujithc481ec92009-01-06 09:28:37 +0530247#define IEEE80211_STA_CSA_RECEIVED BIT(15)
Jouni Malinen5394af42009-01-08 13:31:59 +0200248#define IEEE80211_STA_MFP_ENABLED BIT(16)
Jouni Malinen636a5d32009-03-19 13:39:22 +0200249#define IEEE80211_STA_EXT_SME BIT(17)
Johannes Bergccd7b362008-09-11 00:01:56 +0200250/* flags for MLME request */
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300251#define IEEE80211_STA_REQ_SCAN 0
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300252#define IEEE80211_STA_REQ_DIRECT_PROBE 1
253#define IEEE80211_STA_REQ_AUTH 2
254#define IEEE80211_STA_REQ_RUN 3
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300255
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300256/* bitfield of allowed auth algs */
257#define IEEE80211_AUTH_ALG_OPEN BIT(0)
258#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
259#define IEEE80211_AUTH_ALG_LEAP BIT(2)
Jouni Malinen636a5d32009-03-19 13:39:22 +0200260#define IEEE80211_AUTH_ALG_FT BIT(3)
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300261
Johannes Berg46900292009-02-15 12:44:28 +0100262struct ieee80211_if_managed {
Johannes Berg056cdd52008-03-26 23:21:47 +0100263 struct timer_list timer;
Sujithc481ec92009-01-06 09:28:37 +0530264 struct timer_list chswitch_timer;
Johannes Berg056cdd52008-03-26 23:21:47 +0100265 struct work_struct work;
Sujithc481ec92009-01-06 09:28:37 +0530266 struct work_struct chswitch_work;
Kalle Valo04de8382009-03-22 21:57:35 +0200267 struct work_struct beacon_loss_work;
Johannes Berg46900292009-02-15 12:44:28 +0100268
Johannes Berg056cdd52008-03-26 23:21:47 +0100269 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
Johannes Berg46900292009-02-15 12:44:28 +0100270
Johannes Berg056cdd52008-03-26 23:21:47 +0100271 u8 ssid[IEEE80211_MAX_SSID_LEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700272 size_t ssid_len;
Johannes Berg46900292009-02-15 12:44:28 +0100273
274 enum {
275 IEEE80211_STA_MLME_DISABLED,
276 IEEE80211_STA_MLME_DIRECT_PROBE,
277 IEEE80211_STA_MLME_AUTHENTICATE,
278 IEEE80211_STA_MLME_ASSOCIATE,
279 IEEE80211_STA_MLME_ASSOCIATED,
280 } state;
281
Jiri Bencf0706e82007-05-05 11:45:53 -0700282 u16 aid;
283 u16 ap_capab, capab;
284 u8 *extra_ie; /* to be added to the end of AssocReq */
285 size_t extra_ie_len;
286
287 /* The last AssocReq/Resp IEs */
288 u8 *assocreq_ies, *assocresp_ies;
289 size_t assocreq_ies_len, assocresp_ies_len;
290
Johannes Berg056cdd52008-03-26 23:21:47 +0100291 struct sk_buff_head skb_queue;
292
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300293 int assoc_scan_tries; /* number of scans done pre-association */
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300294 int direct_probe_tries; /* retries for direct probes */
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300295 int auth_tries; /* retries for auth req */
296 int assoc_tries; /* retries for assoc req */
Jiri Bencf0706e82007-05-05 11:45:53 -0700297
Johannes Berg965beda2009-04-16 13:17:24 +0200298 bool powersave; /* powersave requested for this iface */
299
Johannes Berg056cdd52008-03-26 23:21:47 +0100300 unsigned long request;
301
302 unsigned long last_probe;
Kalle Valo15b7b062009-03-22 21:57:14 +0200303 unsigned long last_beacon;
Johannes Berg056cdd52008-03-26 23:21:47 +0100304
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400305 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700306
Jiri Bencf0706e82007-05-05 11:45:53 -0700307 unsigned int auth_algs; /* bitfield of allowed auth algs */
308 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
309 int auth_transaction;
310
Johannes Bergd91f36d2009-04-16 13:17:26 +0200311 u32 beacon_crc;
312
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200313 enum {
314 IEEE80211_MFP_DISABLED,
315 IEEE80211_MFP_OPTIONAL,
316 IEEE80211_MFP_REQUIRED
317 } mfp; /* management frame protection */
318
Jiri Bencf0706e82007-05-05 11:45:53 -0700319 int wmm_last_param_set;
Jouni Malinen9aed3cc2009-01-13 16:03:29 +0200320
321 /* Extra IE data for management frames */
Jouni Malinen636a5d32009-03-19 13:39:22 +0200322 u8 *sme_auth_ie;
323 size_t sme_auth_ie_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700324};
325
Johannes Berg46900292009-02-15 12:44:28 +0100326enum ieee80211_ibss_request {
327 IEEE80211_IBSS_REQ_RUN = 0,
328};
329
330struct ieee80211_if_ibss {
331 struct timer_list timer;
332 struct work_struct work;
333
334 struct sk_buff_head skb_queue;
335
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200336 unsigned long request;
337 unsigned long last_scan_completed;
338 bool fixed_bssid;
339 bool fixed_channel;
Johannes Berg46900292009-02-15 12:44:28 +0100340
341 u8 bssid[ETH_ALEN];
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200342 u8 ssid[IEEE80211_MAX_SSID_LEN];
343 u8 ssid_len, ie_len;
344 u8 *ie;
345 struct ieee80211_channel *channel;
Johannes Berg46900292009-02-15 12:44:28 +0100346
347 unsigned long ibss_join_req;
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200348 /* probe response/beacon for IBSS */
349 struct sk_buff *presp, *skb;
Johannes Berg46900292009-02-15 12:44:28 +0100350
351 enum {
352 IEEE80211_IBSS_MLME_SEARCH,
353 IEEE80211_IBSS_MLME_JOINED,
354 } state;
355};
356
Johannes Berg472dbc42008-09-11 00:01:49 +0200357struct ieee80211_if_mesh {
358 struct work_struct work;
359 struct timer_list housekeeping_timer;
360 struct timer_list mesh_path_timer;
361 struct sk_buff_head skb_queue;
362
363 bool housekeeping;
364
365 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
366 size_t mesh_id_len;
367 /* Active Path Selection Protocol Identifier */
368 u8 mesh_pp_id[4];
369 /* Active Path Selection Metric Identifier */
370 u8 mesh_pm_id[4];
371 /* Congestion Control Mode Identifier */
372 u8 mesh_cc_id[4];
373 /* Local mesh Destination Sequence Number */
374 u32 dsn;
375 /* Last used PREQ ID */
376 u32 preq_id;
377 atomic_t mpaths;
378 /* Timestamp of last DSN update */
379 unsigned long last_dsn_update;
380 /* Timestamp of last DSN sent */
381 unsigned long last_preq;
382 struct mesh_rmc *rmc;
383 spinlock_t mesh_preq_queue_lock;
384 struct mesh_preq_queue preq_queue;
385 int preq_queue_len;
386 struct mesh_stats mshstats;
387 struct mesh_config mshcfg;
388 u32 mesh_seqnum;
389 bool accepting_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200390};
Johannes Berg902acc72008-02-23 15:17:19 +0100391
392#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200393#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
394 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100395#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200396#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100397 do { } while (0)
398#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700399
Johannes Berg213cd112008-09-11 00:01:54 +0200400/**
401 * enum ieee80211_sub_if_data_flags - virtual interface flags
402 *
403 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
404 * @IEEE80211_SDATA_PROMISC: interface is promisc
Johannes Berg213cd112008-09-11 00:01:54 +0200405 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
406 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
407 * associated stations and deliver multicast frames both
408 * back to wireless media and to the local net stack.
409 */
410enum ieee80211_sub_if_data_flags {
411 IEEE80211_SDATA_ALLMULTI = BIT(0),
412 IEEE80211_SDATA_PROMISC = BIT(1),
Johannes Berg7986cf92009-03-21 17:08:43 +0100413 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
414 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
Johannes Berg213cd112008-09-11 00:01:54 +0200415};
416
Jiri Bencf0706e82007-05-05 11:45:53 -0700417struct ieee80211_sub_if_data {
418 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700419
420 struct wireless_dev wdev;
421
Johannes Berg11a843b2007-08-28 17:01:55 -0400422 /* keys */
423 struct list_head key_list;
424
Jiri Bencf0706e82007-05-05 11:45:53 -0700425 struct net_device *dev;
426 struct ieee80211_local *local;
427
Jiri Slaby13262ff2007-08-28 17:01:54 -0400428 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200429
Jiri Bencf0706e82007-05-05 11:45:53 -0700430 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700431
Jiri Bencf0706e82007-05-05 11:45:53 -0700432 /* Fragment table for host-based reassembly */
433 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
434 unsigned int fragment_next;
435
436#define NUM_DEFAULT_KEYS 4
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200437#define NUM_DEFAULT_MGMT_KEYS 2
438 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
Jiri Bencf0706e82007-05-05 11:45:53 -0700439 struct ieee80211_key *default_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200440 struct ieee80211_key *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700441
Johannes Berg94778282008-10-10 13:21:59 +0200442 u16 sequence_number;
443
Johannes Berg3e122be2008-07-09 14:40:34 +0200444 /*
445 * AP this belongs to: self in AP mode and
446 * corresponding AP in VLAN mode, NULL for
447 * all others (might be needed later in IBSS)
448 */
449 struct ieee80211_if_ap *bss;
450
451 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
452 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
Jiri Bencf0706e82007-05-05 11:45:53 -0700453
454 union {
455 struct ieee80211_if_ap ap;
456 struct ieee80211_if_wds wds;
457 struct ieee80211_if_vlan vlan;
Johannes Berg46900292009-02-15 12:44:28 +0100458 struct ieee80211_if_managed mgd;
459 struct ieee80211_if_ibss ibss;
Johannes Berg472dbc42008-09-11 00:01:49 +0200460#ifdef CONFIG_MAC80211_MESH
461 struct ieee80211_if_mesh mesh;
462#endif
Michael Wu8cc9a732008-01-31 19:48:23 +0100463 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700464 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700465
466#ifdef CONFIG_MAC80211_DEBUGFS
467 struct dentry *debugfsdir;
468 union {
469 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700470 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700471 struct dentry *state;
472 struct dentry *bssid;
473 struct dentry *prev_bssid;
474 struct dentry *ssid_len;
475 struct dentry *aid;
476 struct dentry *ap_capab;
477 struct dentry *capab;
478 struct dentry *extra_ie_len;
479 struct dentry *auth_tries;
480 struct dentry *assoc_tries;
481 struct dentry *auth_algs;
482 struct dentry *auth_alg;
483 struct dentry *auth_transaction;
484 struct dentry *flags;
Jouni Malinen93015f02008-08-25 11:57:06 +0300485 struct dentry *force_unicast_rateidx;
486 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700487 } sta;
488 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700489 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700490 struct dentry *num_sta_ps;
Jiri Bence9f207f2007-05-05 11:46:38 -0700491 struct dentry *dtim_count;
Jiri Bence9f207f2007-05-05 11:46:38 -0700492 struct dentry *force_unicast_rateidx;
493 struct dentry *max_ratectrl_rateidx;
494 struct dentry *num_buffered_multicast;
Jiri Bence9f207f2007-05-05 11:46:38 -0700495 } ap;
496 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700497 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700498 struct dentry *peer;
Jouni Malinen93015f02008-08-25 11:57:06 +0300499 struct dentry *force_unicast_rateidx;
500 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700501 } wds;
502 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700503 struct dentry *drop_unencrypted;
Jouni Malinen93015f02008-08-25 11:57:06 +0300504 struct dentry *force_unicast_rateidx;
505 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700506 } vlan;
507 struct {
508 struct dentry *mode;
509 } monitor;
Jiri Bence9f207f2007-05-05 11:46:38 -0700510 } debugfs;
Jouni Malinen2b58b202008-08-28 15:12:06 +0300511 struct {
512 struct dentry *default_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200513 struct dentry *default_mgmt_key;
Jouni Malinen2b58b202008-08-28 15:12:06 +0300514 } common_debugfs;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100515
516#ifdef CONFIG_MAC80211_MESH
517 struct dentry *mesh_stats_dir;
518 struct {
519 struct dentry *fwded_frames;
520 struct dentry *dropped_frames_ttl;
521 struct dentry *dropped_frames_no_route;
522 struct dentry *estab_plinks;
Johannes Berg902acc72008-02-23 15:17:19 +0100523 struct timer_list mesh_path_timer;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100524 } mesh_stats;
525
526 struct dentry *mesh_config_dir;
527 struct {
528 struct dentry *dot11MeshRetryTimeout;
529 struct dentry *dot11MeshConfirmTimeout;
530 struct dentry *dot11MeshHoldingTimeout;
531 struct dentry *dot11MeshMaxRetries;
532 struct dentry *dot11MeshTTL;
533 struct dentry *auto_open_plinks;
534 struct dentry *dot11MeshMaxPeerLinks;
535 struct dentry *dot11MeshHWMPactivePathTimeout;
536 struct dentry *dot11MeshHWMPpreqMinInterval;
537 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
538 struct dentry *dot11MeshHWMPmaxPREQretries;
539 struct dentry *path_refresh_time;
540 struct dentry *min_discovery_timeout;
541 } mesh_config;
542#endif
543
Jiri Bence9f207f2007-05-05 11:46:38 -0700544#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100545 /* must be last, dynamically sized area in this! */
546 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700547};
548
Johannes Berg32bfd352007-12-19 01:31:26 +0100549static inline
550struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
551{
552 return container_of(p, struct ieee80211_sub_if_data, vif);
553}
554
Johannes Berg472dbc42008-09-11 00:01:49 +0200555static inline void
556ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
557 u8 mesh_id_len, u8 *mesh_id)
558{
559#ifdef CONFIG_MAC80211_MESH
560 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
561 ifmsh->mesh_id_len = mesh_id_len;
562 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
563#else
564 WARN_ON(1);
565#endif
566}
567
Jiri Bencf0706e82007-05-05 11:45:53 -0700568enum {
569 IEEE80211_RX_MSG = 1,
570 IEEE80211_TX_STATUS_MSG = 2,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200571 IEEE80211_DELBA_MSG = 3,
572 IEEE80211_ADDBA_MSG = 4,
Jiri Bencf0706e82007-05-05 11:45:53 -0700573};
574
Kalle Valoce7c9112008-12-18 23:35:20 +0200575enum queue_stop_reason {
576 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200577 IEEE80211_QUEUE_STOP_REASON_PS,
Johannes Berg96f5e662009-02-12 00:51:53 +0100578 IEEE80211_QUEUE_STOP_REASON_CSA,
579 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
Johannes Berg25420602009-03-13 11:43:36 +0100580 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
Johannes Berg2a577d92009-03-23 17:28:37 +0100581 IEEE80211_QUEUE_STOP_REASON_PENDING,
Kalle Valoce7c9112008-12-18 23:35:20 +0200582};
583
Johannes Berg133b8222008-09-16 14:18:59 +0200584struct ieee80211_master_priv {
585 struct ieee80211_local *local;
586};
587
Jiri Bencf0706e82007-05-05 11:45:53 -0700588struct ieee80211_local {
589 /* embed the driver visible part.
590 * don't cast (use the static inlines below), but we keep
591 * it first anyway so they become a no-op */
592 struct ieee80211_hw hw;
593
594 const struct ieee80211_ops *ops;
595
Johannes Berge4e72fb2009-03-23 17:28:42 +0100596 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
Johannes Berg96f5e662009-02-12 00:51:53 +0100597 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
Kalle Valoce7c9112008-12-18 23:35:20 +0200598 spinlock_t queue_stop_reason_lock;
Johannes Berg96f5e662009-02-12 00:51:53 +0100599
Jiri Bencf0706e82007-05-05 11:45:53 -0700600 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
Jiri Bencf0706e82007-05-05 11:45:53 -0700601 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100602 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100603 /* number of interfaces with corresponding FIF_ flags */
604 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
Johannes Berg4150c572007-09-17 01:29:23 -0400605 unsigned int filter_flags; /* FIF_* */
Jiri Bencf0706e82007-05-05 11:45:53 -0700606 struct iw_statistics wstats;
Johannes Bergd0709a62008-02-25 16:27:46 +0100607 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Bergb306f452007-07-10 19:32:08 +0200608 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700609
Jiri Bencf0706e82007-05-05 11:45:53 -0700610 /* Tasklet and skb queue to process calls from IRQ mode. All frames
611 * added to skb_queue will be processed, but frames in
612 * skb_queue_unreliable may be dropped if the total length of these
613 * queues increases over the limit. */
614#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
615 struct tasklet_struct tasklet;
616 struct sk_buff_head skb_queue;
617 struct sk_buff_head skb_queue_unreliable;
618
Johannes Bergd0709a62008-02-25 16:27:46 +0100619 /* Station data */
620 /*
621 * The lock only protects the list, hash, timer and counter
622 * against manipulation, reads are done in RCU. Additionally,
Johannes Bergb16bd152008-04-11 21:40:35 +0200623 * the lock protects each BSS's TIM bitmap.
Johannes Bergd0709a62008-02-25 16:27:46 +0100624 */
625 spinlock_t sta_lock;
626 unsigned long num_sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700627 struct list_head sta_list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700628 struct sta_info *sta_hash[STA_HASH_SIZE];
629 struct timer_list sta_cleanup;
630
Johannes Berg2a577d92009-03-23 17:28:37 +0100631 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700632 struct tasklet_struct tx_pending_tasklet;
633
Johannes Bergcd8ffc82009-03-23 17:28:41 +0100634 /*
635 * This lock is used to prevent concurrent A-MPDU
636 * session start/stop processing, this thus also
637 * synchronises the ->ampdu_action() callback to
638 * drivers and limits it to one at a time.
639 */
640 spinlock_t ampdu_lock;
641
Johannes Berg53918992007-09-26 15:19:47 +0200642 /* number of interfaces with corresponding IFF_ flags */
643 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700644
645 struct rate_control_ref *rate_ctrl;
646
Jiri Bencf0706e82007-05-05 11:45:53 -0700647 int rts_threshold;
Jiri Bencf0706e82007-05-05 11:45:53 -0700648 int fragmentation_threshold;
Jiri Bencf0706e82007-05-05 11:45:53 -0700649
650 struct crypto_blkcipher *wep_tx_tfm;
651 struct crypto_blkcipher *wep_rx_tfm;
652 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700653
Johannes Bergc771c9d2009-01-23 22:54:03 +0100654 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400655 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100656 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400657
Johannes Bergb16bd152008-04-11 21:40:35 +0200658 /*
659 * Key lock, protects sdata's key_list and sta_info's
660 * key pointers (write access, they're RCU.)
661 */
662 spinlock_t key_lock;
663
664
Johannes Bergc2b13452008-09-11 00:01:55 +0200665 /* Scanning and BSS list */
666 bool sw_scanning, hw_scanning;
Johannes Berg2a519312009-02-10 21:25:55 +0100667 struct cfg80211_ssid scan_ssid;
668 struct cfg80211_scan_request int_scan_req;
669 struct cfg80211_scan_request *scan_req;
670 struct ieee80211_channel *scan_channel;
Johannes Bergde95a542009-04-01 11:58:36 +0200671 const u8 *orig_ies;
672 int orig_ies_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700673 int scan_channel_idx;
Johannes Bergde95a542009-04-01 11:58:36 +0200674 int scan_ies_len;
Johannes Berg8318d782008-01-24 19:38:38 +0100675
Jiri Bencf0706e82007-05-05 11:45:53 -0700676 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
Jiri Bencf0706e82007-05-05 11:45:53 -0700677 struct delayed_work scan_work;
Johannes Berg491775a2008-09-08 17:44:23 +0200678 struct ieee80211_sub_if_data *scan_sdata;
Sujith094d05d2008-12-12 11:57:43 +0530679 enum nl80211_channel_type oper_channel_type;
Johannes Berg2a519312009-02-10 21:25:55 +0100680 struct ieee80211_channel *oper_channel, *csa_channel;
Jiri Bencf0706e82007-05-05 11:45:53 -0700681
682 /* SNMP counters */
683 /* dot11CountersTable */
684 u32 dot11TransmittedFragmentCount;
685 u32 dot11MulticastTransmittedFrameCount;
686 u32 dot11FailedCount;
687 u32 dot11RetryCount;
688 u32 dot11MultipleRetryCount;
689 u32 dot11FrameDuplicateCount;
690 u32 dot11ReceivedFragmentCount;
691 u32 dot11MulticastReceivedFrameCount;
692 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -0700693
694#ifdef CONFIG_MAC80211_LEDS
695 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100696 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
697 char tx_led_name[32], rx_led_name[32],
698 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -0700699#endif
700
Jiri Bence9f207f2007-05-05 11:46:38 -0700701#ifdef CONFIG_MAC80211_DEBUGFS
702 struct work_struct sta_debugfs_add;
703#endif
704
Jiri Bencf0706e82007-05-05 11:45:53 -0700705#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
706 /* TX/RX handler statistics */
707 unsigned int tx_handlers_drop;
708 unsigned int tx_handlers_queued;
709 unsigned int tx_handlers_drop_unencrypted;
710 unsigned int tx_handlers_drop_fragment;
711 unsigned int tx_handlers_drop_wep;
712 unsigned int tx_handlers_drop_not_assoc;
713 unsigned int tx_handlers_drop_unauth_port;
714 unsigned int rx_handlers_drop;
715 unsigned int rx_handlers_queued;
716 unsigned int rx_handlers_drop_nullfunc;
717 unsigned int rx_handlers_drop_defrag;
718 unsigned int rx_handlers_drop_short;
719 unsigned int rx_handlers_drop_passive_scan;
720 unsigned int tx_expand_skb_head;
721 unsigned int tx_expand_skb_head_cloned;
722 unsigned int rx_expand_skb_head;
723 unsigned int rx_expand_skb_head2;
724 unsigned int rx_handlers_fragments;
725 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -0700726#define I802_DEBUG_INC(c) (c)++
727#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
728#define I802_DEBUG_INC(c) do { } while (0)
729#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
730
731
Jiri Bencf0706e82007-05-05 11:45:53 -0700732 int total_ps_buffered; /* total number of all buffered unicast and
733 * multicast packets for power saving stations
734 */
Jiri Bencf0706e82007-05-05 11:45:53 -0700735 int wifi_wme_noack_test;
736 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
Kalle Valo520eb822008-12-18 23:35:27 +0200737
Kalle Valo572e0012009-02-10 17:09:31 +0200738 bool pspolling;
Johannes Berg965beda2009-04-16 13:17:24 +0200739 /*
740 * PS can only be enabled when we have exactly one managed
741 * interface (and monitors) in PS, this then points there.
742 */
743 struct ieee80211_sub_if_data *ps_sdata;
Kalle Valo520eb822008-12-18 23:35:27 +0200744 struct work_struct dynamic_ps_enable_work;
745 struct work_struct dynamic_ps_disable_work;
746 struct timer_list dynamic_ps_timer;
Johannes Berg10f644a2009-04-16 13:17:25 +0200747 struct notifier_block network_latency_notifier;
Jiri Bencf0706e82007-05-05 11:45:53 -0700748
Johannes Berg2bf30fa2009-01-06 23:23:56 +0100749 int user_power_level; /* in dBm */
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +0530750 int power_constr_level; /* in dBm */
Johannes Berg2bf30fa2009-01-06 23:23:56 +0100751
Johannes Bergf2753dd2009-04-14 10:09:24 +0200752 struct work_struct restart_work;
753
Jiri Bence9f207f2007-05-05 11:46:38 -0700754#ifdef CONFIG_MAC80211_DEBUGFS
755 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +0200756 struct dentry *rcdir;
757 struct dentry *rcname;
Jiri Bence9f207f2007-05-05 11:46:38 -0700758 struct dentry *frequency;
Jiri Bence9f207f2007-05-05 11:46:38 -0700759 struct dentry *rts_threshold;
760 struct dentry *fragmentation_threshold;
761 struct dentry *short_retry_limit;
762 struct dentry *long_retry_limit;
763 struct dentry *total_ps_buffered;
Jiri Bence9f207f2007-05-05 11:46:38 -0700764 struct dentry *wep_iv;
Alina Friedrichsenae54c982009-01-23 05:33:37 +0100765 struct dentry *tsf;
Johannes Berg827b1fb2009-03-13 11:44:18 +0100766 struct dentry *reset;
Jiri Bence9f207f2007-05-05 11:46:38 -0700767 struct dentry *statistics;
768 struct local_debugfsdentries_statsdentries {
769 struct dentry *transmitted_fragment_count;
770 struct dentry *multicast_transmitted_frame_count;
771 struct dentry *failed_count;
772 struct dentry *retry_count;
773 struct dentry *multiple_retry_count;
774 struct dentry *frame_duplicate_count;
775 struct dentry *received_fragment_count;
776 struct dentry *multicast_received_frame_count;
777 struct dentry *transmitted_frame_count;
778 struct dentry *wep_undecryptable_count;
779 struct dentry *num_scans;
780#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
781 struct dentry *tx_handlers_drop;
782 struct dentry *tx_handlers_queued;
783 struct dentry *tx_handlers_drop_unencrypted;
784 struct dentry *tx_handlers_drop_fragment;
785 struct dentry *tx_handlers_drop_wep;
786 struct dentry *tx_handlers_drop_not_assoc;
787 struct dentry *tx_handlers_drop_unauth_port;
788 struct dentry *rx_handlers_drop;
789 struct dentry *rx_handlers_queued;
790 struct dentry *rx_handlers_drop_nullfunc;
791 struct dentry *rx_handlers_drop_defrag;
792 struct dentry *rx_handlers_drop_short;
793 struct dentry *rx_handlers_drop_passive_scan;
794 struct dentry *tx_expand_skb_head;
795 struct dentry *tx_expand_skb_head_cloned;
796 struct dentry *rx_expand_skb_head;
797 struct dentry *rx_expand_skb_head2;
798 struct dentry *rx_handlers_fragments;
799 struct dentry *tx_status_drop;
Jiri Bence9f207f2007-05-05 11:46:38 -0700800#endif
801 struct dentry *dot11ACKFailureCount;
802 struct dentry *dot11RTSFailureCount;
803 struct dentry *dot11FCSErrorCount;
804 struct dentry *dot11RTSSuccessCount;
805 } stats;
806 struct dentry *stations;
807 struct dentry *keys;
808 } debugfs;
809#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700810};
811
Johannes Berg3e122be2008-07-09 14:40:34 +0200812static inline struct ieee80211_sub_if_data *
813IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
814{
815 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
816
817 BUG_ON(!local || local->mdev == dev);
818
819 return netdev_priv(dev);
820}
821
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200822/* this struct represents 802.11n's RA/TID combination */
823struct ieee80211_ra_tid {
824 u8 ra[ETH_ALEN];
825 u16 tid;
826};
827
Luis Carlos Coboee385852008-02-23 15:17:11 +0100828/* Parsed Information Elements */
829struct ieee802_11_elems {
Jouni Malinen43ac2ca2008-08-15 22:21:27 +0300830 u8 *ie_start;
831 size_t total_len;
832
Luis Carlos Coboee385852008-02-23 15:17:11 +0100833 /* pointers to IEs */
834 u8 *ssid;
835 u8 *supp_rates;
836 u8 *fh_params;
837 u8 *ds_params;
838 u8 *cf_params;
839 u8 *tim;
840 u8 *ibss_params;
841 u8 *challenge;
842 u8 *wpa;
843 u8 *rsn;
844 u8 *erp_info;
845 u8 *ext_supp_rates;
846 u8 *wmm_info;
847 u8 *wmm_param;
Johannes Berg09914812008-10-07 19:31:17 +0200848 struct ieee80211_ht_cap *ht_cap_elem;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200849 struct ieee80211_ht_info *ht_info_elem;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100850 u8 *mesh_config;
851 u8 *mesh_id;
852 u8 *peer_link;
853 u8 *preq;
854 u8 *prep;
855 u8 *perr;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300856 u8 *ch_switch_elem;
857 u8 *country_elem;
858 u8 *pwr_constr_elem;
859 u8 *quiet_elem; /* first quite element */
Jouni Malinenf797eb72009-01-19 18:48:46 +0200860 u8 *timeout_int;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100861
862 /* length of them, respectively */
863 u8 ssid_len;
864 u8 supp_rates_len;
865 u8 fh_params_len;
866 u8 ds_params_len;
867 u8 cf_params_len;
868 u8 tim_len;
869 u8 ibss_params_len;
870 u8 challenge_len;
871 u8 wpa_len;
872 u8 rsn_len;
873 u8 erp_info_len;
874 u8 ext_supp_rates_len;
875 u8 wmm_info_len;
876 u8 wmm_param_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100877 u8 mesh_config_len;
878 u8 mesh_id_len;
879 u8 peer_link_len;
880 u8 preq_len;
881 u8 prep_len;
882 u8 perr_len;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300883 u8 ch_switch_elem_len;
884 u8 country_elem_len;
885 u8 pwr_constr_elem_len;
886 u8 quiet_elem_len;
887 u8 num_of_quiet_elem; /* can be more the one */
Jouni Malinenf797eb72009-01-19 18:48:46 +0200888 u8 timeout_int_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100889};
890
Jiri Bencf0706e82007-05-05 11:45:53 -0700891static inline struct ieee80211_local *hw_to_local(
892 struct ieee80211_hw *hw)
893{
894 return container_of(hw, struct ieee80211_local, hw);
895}
896
897static inline struct ieee80211_hw *local_to_hw(
898 struct ieee80211_local *local)
899{
900 return &local->hw;
901}
902
Jiri Bencf0706e82007-05-05 11:45:53 -0700903
Johannes Berg571ecf62007-07-27 15:43:22 +0200904static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
905{
906 return compare_ether_addr(raddr, addr) == 0 ||
907 is_broadcast_ether_addr(raddr);
908}
909
910
Johannes Berge8975582008-10-09 12:18:51 +0200911int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg9d139c82008-07-09 14:40:37 +0200912int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +0100913void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200914void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
915 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +0200916void ieee80211_configure_filter(struct ieee80211_local *local);
Johannes Berg46900292009-02-15 12:44:28 +0100917u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Jiri Bencf0706e82007-05-05 11:45:53 -0700918
Johannes Berg9c6bd792008-09-11 00:01:52 +0200919/* wireless extensions */
Jiri Bencf0706e82007-05-05 11:45:53 -0700920extern const struct iw_handler_def ieee80211_iw_handler_def;
David S. Miller65b53e4c2008-06-10 02:22:26 -0700921
Johannes Berg46900292009-02-15 12:44:28 +0100922/* STA code */
Johannes Berg9c6bd792008-09-11 00:01:52 +0200923void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +0100924ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
925 struct sk_buff *skb,
926 struct ieee80211_rx_status *rx_status);
Alina Friedrichsen79f64402009-02-21 01:27:29 +0100927int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200928int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
929int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
930int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
Johannes Berg46900292009-02-15 12:44:28 +0100931void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200932int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
933int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
Kalle Valo572e0012009-02-10 17:09:31 +0200934void ieee80211_send_pspoll(struct ieee80211_local *local,
935 struct ieee80211_sub_if_data *sdata);
Johannes Berg10f644a2009-04-16 13:17:25 +0200936void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
937int ieee80211_max_network_latency(struct notifier_block *nb,
938 unsigned long data, void *dummy);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200939
Johannes Berg46900292009-02-15 12:44:28 +0100940/* IBSS code */
Johannes Berg46900292009-02-15 12:44:28 +0100941void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
942void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
943ieee80211_rx_result
944ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
945 struct ieee80211_rx_status *rx_status);
946struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
947 u8 *bssid, u8 *addr, u32 supp_rates);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +0200948int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
949 struct cfg80211_ibss_params *params);
950int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
Johannes Berg46900292009-02-15 12:44:28 +0100951
Johannes Berg9c6bd792008-09-11 00:01:52 +0200952/* scan/BSS handling */
Johannes Berg46900292009-02-15 12:44:28 +0100953void ieee80211_scan_work(struct work_struct *work);
Johannes Bergc2b13452008-09-11 00:01:55 +0200954int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
Johannes Berg2a519312009-02-10 21:25:55 +0100955 struct cfg80211_scan_request *req);
Johannes Bergc2b13452008-09-11 00:01:55 +0200956int ieee80211_scan_results(struct ieee80211_local *local,
957 struct iw_request_info *info,
958 char *buf, size_t len);
959ieee80211_rx_result
960ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
961 struct sk_buff *skb,
962 struct ieee80211_rx_status *rx_status);
Johannes Bergc2b13452008-09-11 00:01:55 +0200963int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
Jouni Malinen636a5d32009-03-19 13:39:22 +0200964 const char *ie, size_t len);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200965
Johannes Berg0a51b272008-09-08 17:44:25 +0200966void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Helmut Schaaaf88b902009-03-09 15:47:08 +0100967void ieee80211_scan_failed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +0200968int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
Johannes Berg2a519312009-02-10 21:25:55 +0100969 struct cfg80211_scan_request *req);
Johannes Bergc2b13452008-09-11 00:01:55 +0200970struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200971ieee80211_bss_info_update(struct ieee80211_local *local,
972 struct ieee80211_rx_status *rx_status,
973 struct ieee80211_mgmt *mgmt,
974 size_t len,
975 struct ieee802_11_elems *elems,
Johannes Berg2a519312009-02-10 21:25:55 +0100976 struct ieee80211_channel *channel,
977 bool beacon);
Johannes Bergc2b13452008-09-11 00:01:55 +0200978struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +0200979ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
980 u8 *ssid, u8 ssid_len);
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200981void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +0200982 struct ieee80211_bss *bss);
Vasanthakumar Thiagarajan7a947082009-02-04 18:28:48 +0530983void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data *sdata, u8 *bssid,
984 int freq, u8 *ssid, u8 ssid_len);
Luis Carlos Coboee385852008-02-23 15:17:11 +0100985
Johannes Berg3e122be2008-07-09 14:40:34 +0200986/* interface handling */
987int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg05c914f2008-09-11 00:01:58 +0200988 struct net_device **new_dev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +0100989 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +0200990int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +0200991 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200992void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +0200993void ieee80211_remove_interfaces(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -0700994
Johannes Berge2ebc742007-07-27 15:43:22 +0200995/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +0200996void ieee80211_clear_tx_pending(struct ieee80211_local *local);
997void ieee80211_tx_pending(unsigned long data);
998int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
999int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
1000int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +02001001
Johannes Bergde1ede72008-09-09 14:42:50 +02001002/* HT */
Johannes Bergae5eb022008-10-14 16:58:37 +02001003void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
1004 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001005 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergde1ede72008-09-09 14:42:50 +02001006void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
Johannes Bergb8695a82009-02-10 21:25:46 +01001007void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1008 const u8 *da, u16 tid,
1009 u16 initiator, u16 reason_code);
Johannes Bergde1ede72008-09-09 14:42:50 +02001010
1011void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
1012 u16 tid, u16 initiator, u16 reason);
Johannes Berg849b7962009-02-10 21:25:54 +01001013void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1014 u16 initiator, u16 reason);
Johannes Berg2dace102009-02-10 21:25:52 +01001015void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
Johannes Bergde1ede72008-09-09 14:42:50 +02001016void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1017 struct sta_info *sta,
1018 struct ieee80211_mgmt *mgmt, size_t len);
1019void ieee80211_process_addba_resp(struct ieee80211_local *local,
1020 struct sta_info *sta,
1021 struct ieee80211_mgmt *mgmt,
1022 size_t len);
1023void ieee80211_process_addba_request(struct ieee80211_local *local,
1024 struct sta_info *sta,
1025 struct ieee80211_mgmt *mgmt,
1026 size_t len);
1027
Johannes Berg849b7962009-02-10 21:25:54 +01001028int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1029 enum ieee80211_back_parties initiator);
1030
Johannes Berg39192c02008-09-09 14:49:03 +02001031/* Spectrum management */
1032void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1033 struct ieee80211_mgmt *mgmt,
1034 size_t len);
Sujithc481ec92009-01-06 09:28:37 +05301035void ieee80211_chswitch_timer(unsigned long data);
1036void ieee80211_chswitch_work(struct work_struct *work);
1037void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1038 struct ieee80211_channel_sw_ie *sw_elem,
1039 struct ieee80211_bss *bss);
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +05301040void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
1041 u16 capab_info, u8 *pwr_constr_elem,
1042 u8 pwr_constr_elem_len);
Johannes Berg39192c02008-09-09 14:49:03 +02001043
Johannes Bergf2753dd2009-04-14 10:09:24 +02001044/* Suspend/resume and hw reconfiguration */
1045int ieee80211_reconfig(struct ieee80211_local *local);
1046
Johannes Berg827b1fb2009-03-13 11:44:18 +01001047#ifdef CONFIG_PM
Bob Copeland665af4f2009-01-19 11:20:53 -05001048int __ieee80211_suspend(struct ieee80211_hw *hw);
Johannes Bergf2753dd2009-04-14 10:09:24 +02001049
1050static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1051{
1052 return ieee80211_reconfig(hw_to_local(hw));
1053}
Johannes Berg827b1fb2009-03-13 11:44:18 +01001054#else
1055static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1056{
1057 return 0;
1058}
Johannes Bergf2753dd2009-04-14 10:09:24 +02001059
Johannes Berg827b1fb2009-03-13 11:44:18 +01001060static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1061{
1062 return 0;
1063}
1064#endif
Bob Copeland665af4f2009-01-19 11:20:53 -05001065
Johannes Bergc2d15602007-07-27 15:43:23 +02001066/* utility functions/constants */
1067extern void *mac80211_wiphy_privid; /* for wiphy privid */
1068extern const unsigned char rfc1042_header[6];
1069extern const unsigned char bridge_tunnel_header[6];
Ron Rindjunsky71364712007-12-25 17:00:36 +02001070u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001071 enum nl80211_iftype type);
Johannes Bergc2d15602007-07-27 15:43:23 +02001072int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1073 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001074void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Jouni Malinena3b8b052009-03-27 21:59:49 +02001075 struct ieee80211_hdr *hdr, const u8 *tsc);
Johannes Berg5825fe102008-09-09 12:56:01 +02001076void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
Johannes Berge50db652008-09-09 15:07:09 +02001077void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1078 int encrypt);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001079void ieee802_11_parse_elems(u8 *start, size_t len,
1080 struct ieee802_11_elems *elems);
Johannes Bergd91f36d2009-04-16 13:17:26 +02001081u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1082 struct ieee802_11_elems *elems,
1083 u64 filter, u32 crc);
Johannes Berge16751c2008-09-11 00:01:53 +02001084int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
Johannes Berg881d9482009-01-21 15:13:48 +01001085u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001086 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001087
Kalle Valo520eb822008-12-18 23:35:27 +02001088void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1089void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1090void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001091void ieee80211_send_nullfunc(struct ieee80211_local *local,
1092 struct ieee80211_sub_if_data *sdata,
1093 int powersave);
Kalle Valo3cf335d2009-03-22 21:57:06 +02001094void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1095 struct ieee80211_hdr *hdr);
Kalle Valo04de8382009-03-22 21:57:35 +02001096void ieee80211_beacon_loss_work(struct work_struct *work);
Kalle Valo520eb822008-12-18 23:35:27 +02001097
Kalle Valoce7c9112008-12-18 23:35:20 +02001098void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1099 enum queue_stop_reason reason);
1100void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1101 enum queue_stop_reason reason);
Johannes Berg96f5e662009-02-12 00:51:53 +01001102void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1103 enum queue_stop_reason reason);
1104void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1105 enum queue_stop_reason reason);
Kalle Valoce7c9112008-12-18 23:35:20 +02001106
Johannes Berg46900292009-02-15 12:44:28 +01001107void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1108 u16 transaction, u16 auth_alg,
1109 u8 *extra, size_t extra_len,
1110 const u8 *bssid, int encrypt);
Johannes Bergde95a542009-04-01 11:58:36 +02001111int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1112 const u8 *ie, size_t ie_len);
Johannes Berg46900292009-02-15 12:44:28 +01001113void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
Johannes Bergde95a542009-04-01 11:58:36 +02001114 const u8 *ssid, size_t ssid_len,
1115 const u8 *ie, size_t ie_len);
Johannes Berg46900292009-02-15 12:44:28 +01001116
1117void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1118 const size_t supp_rates_len,
1119 const u8 *supp_rates);
1120u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1121 struct ieee802_11_elems *elems,
1122 enum ieee80211_band band);
1123
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001124#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001125#define debug_noinline noinline
1126#else
1127#define debug_noinline
1128#endif
1129
Jiri Bencf0706e82007-05-05 11:45:53 -07001130#endif /* IEEE80211_I_H */