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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
Jiri Bencf0706e82007-05-05 11:45:53 -070060struct ieee80211_fragment_entry {
61 unsigned long first_frag_time;
62 unsigned int seq;
63 unsigned int rx_queue;
64 unsigned int last_frag;
65 unsigned int extra_len;
66 struct sk_buff_head skb_list;
67 int ccmp; /* Whether fragments were encrypted with CCMP */
68 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
69};
70
71
Johannes Bergc2b13452008-09-11 00:01:55 +020072struct ieee80211_bss {
Jiri Bencf0706e82007-05-05 11:45:53 -070073 struct list_head list;
Johannes Bergc2b13452008-09-11 00:01:55 +020074 struct ieee80211_bss *hnext;
Johannes Berg056cdd52008-03-26 23:21:47 +010075 size_t ssid_len;
76
Jiri Bencf0706e82007-05-05 11:45:53 -070077 atomic_t users;
78
79 u8 bssid[ETH_ALEN];
80 u8 ssid[IEEE80211_MAX_SSID_LEN];
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080081 u8 dtim_period;
Jiri Bencf0706e82007-05-05 11:45:53 -070082 u16 capability; /* host byte order */
Johannes Berg8318d782008-01-24 19:38:38 +010083 enum ieee80211_band band;
Jiri Bencf0706e82007-05-05 11:45:53 -070084 int freq;
Bruno Randolf566bfe52008-05-08 19:15:40 +020085 int signal, noise, qual;
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030086 u8 *ies; /* all information elements from the last Beacon or Probe
87 * Response frames; note Beacon frame is not allowed to
88 * override values from Probe Response */
89 size_t ies_len;
90 bool wmm_used;
Luis Carlos Coboee385852008-02-23 15:17:11 +010091#ifdef CONFIG_MAC80211_MESH
92 u8 *mesh_id;
93 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040094 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010095#endif
Jiri Bencf0706e82007-05-05 11:45:53 -070096#define IEEE80211_MAX_SUPP_RATES 32
97 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
98 size_t supp_rates_len;
Jiri Bencf0706e82007-05-05 11:45:53 -070099 u64 timestamp;
Johannes Berg056cdd52008-03-26 23:21:47 +0100100 int beacon_int;
Jiri Bencf0706e82007-05-05 11:45:53 -0700101
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300102 unsigned long last_probe_resp;
Jiri Bencf0706e82007-05-05 11:45:53 -0700103 unsigned long last_update;
104
Daniel Drake56282212007-07-10 19:32:10 +0200105 /* during assocation, we save an ERP value from a probe response so
106 * that we can feed ERP info to the driver when handling the
107 * association completes. these fields probably won't be up-to-date
108 * otherwise, you probably don't want to use them. */
109 int has_erp_value;
110 u8 erp_value;
Jiri Bencf0706e82007-05-05 11:45:53 -0700111};
112
Johannes Bergc2b13452008-09-11 00:01:55 +0200113static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100114{
115#ifdef CONFIG_MAC80211_MESH
116 return bss->mesh_cfg;
117#endif
118 return NULL;
119}
120
Johannes Bergc2b13452008-09-11 00:01:55 +0200121static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100122{
123#ifdef CONFIG_MAC80211_MESH
124 return bss->mesh_id;
125#endif
126 return NULL;
127}
128
Johannes Bergc2b13452008-09-11 00:01:55 +0200129static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100130{
131#ifdef CONFIG_MAC80211_MESH
132 return bss->mesh_id_len;
133#endif
134 return 0;
135}
136
Jiri Bencf0706e82007-05-05 11:45:53 -0700137
Johannes Berg9ae54c82008-01-31 19:48:20 +0100138typedef unsigned __bitwise__ ieee80211_tx_result;
139#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
140#define TX_DROP ((__force ieee80211_tx_result) 1u)
141#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
142
Johannes Berg5cf121c2008-02-25 16:27:43 +0100143#define IEEE80211_TX_FRAGMENTED BIT(0)
144#define IEEE80211_TX_UNICAST BIT(1)
145#define IEEE80211_TX_PS_BUFFERED BIT(2)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100146
Johannes Berg5cf121c2008-02-25 16:27:43 +0100147struct ieee80211_tx_data {
Jiri Bencf0706e82007-05-05 11:45:53 -0700148 struct sk_buff *skb;
149 struct net_device *dev;
150 struct ieee80211_local *local;
151 struct ieee80211_sub_if_data *sdata;
152 struct sta_info *sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700153 struct ieee80211_key *key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700154
Johannes Berg5cf121c2008-02-25 16:27:43 +0100155 struct ieee80211_channel *channel;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100156
157 /* Extra fragments (in addition to the first fragment
158 * in skb) */
Johannes Berg5cf121c2008-02-25 16:27:43 +0100159 struct sk_buff **extra_frag;
Johannes Berg056cdd52008-03-26 23:21:47 +0100160 int num_extra_frag;
161
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700162 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100163 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100164};
165
166
167typedef unsigned __bitwise__ ieee80211_rx_result;
168#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
169#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
170#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
171#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
172
173#define IEEE80211_RX_IN_SCAN BIT(0)
174/* frame is destined to interface currently processed (incl. multicast frames) */
175#define IEEE80211_RX_RA_MATCH BIT(1)
176#define IEEE80211_RX_AMSDU BIT(2)
177#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
178#define IEEE80211_RX_FRAGMENTED BIT(4)
179
180struct ieee80211_rx_data {
181 struct sk_buff *skb;
182 struct net_device *dev;
183 struct ieee80211_local *local;
184 struct ieee80211_sub_if_data *sdata;
185 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100186 struct ieee80211_key *key;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100187 struct ieee80211_rx_status *status;
188 struct ieee80211_rate *rate;
Johannes Berg056cdd52008-03-26 23:21:47 +0100189
Johannes Berg056cdd52008-03-26 23:21:47 +0100190 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100191 int sent_ps_buffered;
192 int queue;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100193 u32 tkip_iv32;
194 u16 tkip_iv16;
Jiri Bencf0706e82007-05-05 11:45:53 -0700195};
196
Jiri Bencf0706e82007-05-05 11:45:53 -0700197struct ieee80211_tx_stored_packet {
Jiri Bencf0706e82007-05-05 11:45:53 -0700198 struct sk_buff *skb;
Jiri Bencf0706e82007-05-05 11:45:53 -0700199 struct sk_buff **extra_frag;
Johannes Berg056cdd52008-03-26 23:21:47 +0100200 int num_extra_frag;
Jiri Bencf0706e82007-05-05 11:45:53 -0700201};
202
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100203struct beacon_data {
204 u8 *head, *tail;
205 int head_len, tail_len;
206 int dtim_period;
207};
208
Jiri Bencf0706e82007-05-05 11:45:53 -0700209struct ieee80211_if_ap {
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100210 struct beacon_data *beacon;
Jiri Bencf0706e82007-05-05 11:45:53 -0700211
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400212 struct list_head vlans;
213
Jiri Bencf0706e82007-05-05 11:45:53 -0700214 /* yes, this looks ugly, but guarantees that we can later use
215 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100216 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e82007-05-05 11:45:53 -0700217 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e82007-05-05 11:45:53 -0700218 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100219 atomic_t num_sta_ps; /* number of stations in PS mode */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100220 int dtim_count;
Jiri Bencf0706e82007-05-05 11:45:53 -0700221};
222
223struct ieee80211_if_wds {
Jiri Bencf0706e82007-05-05 11:45:53 -0700224 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100225 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e82007-05-05 11:45:53 -0700226};
227
228struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400229 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700230};
231
Luis Carlos Coboee385852008-02-23 15:17:11 +0100232struct mesh_stats {
233 __u32 fwded_frames; /* Mesh forwarded frames */
234 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
235 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
236 atomic_t estab_plinks;
237};
238
239#define PREQ_Q_F_START 0x1
240#define PREQ_Q_F_REFRESH 0x2
241struct mesh_preq_queue {
242 struct list_head list;
243 u8 dst[ETH_ALEN];
244 u8 flags;
245};
246
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400247/* flags used in struct ieee80211_if_sta.flags */
248#define IEEE80211_STA_SSID_SET BIT(0)
249#define IEEE80211_STA_BSSID_SET BIT(1)
250#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
251#define IEEE80211_STA_AUTHENTICATED BIT(3)
252#define IEEE80211_STA_ASSOCIATED BIT(4)
253#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
254#define IEEE80211_STA_CREATE_IBSS BIT(6)
255#define IEEE80211_STA_MIXED_CELL BIT(7)
256#define IEEE80211_STA_WMM_ENABLED BIT(8)
257#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
258#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
259#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
Johannes Berg5b98b1f2007-11-03 13:11:10 +0000260#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
Vasanthakumar Thiagarajaneb469362008-12-23 21:30:50 +0530261#define IEEE80211_STA_TKIP_WEP_USED BIT(14)
Sujithc481ec92009-01-06 09:28:37 +0530262#define IEEE80211_STA_CSA_RECEIVED BIT(15)
Jouni Malinen5394af42009-01-08 13:31:59 +0200263#define IEEE80211_STA_MFP_ENABLED BIT(16)
Johannes Bergccd7b362008-09-11 00:01:56 +0200264/* flags for MLME request */
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300265#define IEEE80211_STA_REQ_SCAN 0
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300266#define IEEE80211_STA_REQ_DIRECT_PROBE 1
267#define IEEE80211_STA_REQ_AUTH 2
268#define IEEE80211_STA_REQ_RUN 3
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300269
Johannes Bergccd7b362008-09-11 00:01:56 +0200270/* STA/IBSS MLME states */
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300271enum ieee80211_sta_mlme_state {
272 IEEE80211_STA_MLME_DISABLED,
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300273 IEEE80211_STA_MLME_DIRECT_PROBE,
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300274 IEEE80211_STA_MLME_AUTHENTICATE,
275 IEEE80211_STA_MLME_ASSOCIATE,
276 IEEE80211_STA_MLME_ASSOCIATED,
277 IEEE80211_STA_MLME_IBSS_SEARCH,
278 IEEE80211_STA_MLME_IBSS_JOINED,
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300279};
280
281/* bitfield of allowed auth algs */
282#define IEEE80211_AUTH_ALG_OPEN BIT(0)
283#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
284#define IEEE80211_AUTH_ALG_LEAP BIT(2)
285
Jiri Bencf0706e82007-05-05 11:45:53 -0700286struct ieee80211_if_sta {
Johannes Berg056cdd52008-03-26 23:21:47 +0100287 struct timer_list timer;
Sujithc481ec92009-01-06 09:28:37 +0530288 struct timer_list chswitch_timer;
Johannes Berg056cdd52008-03-26 23:21:47 +0100289 struct work_struct work;
Sujithc481ec92009-01-06 09:28:37 +0530290 struct work_struct chswitch_work;
Johannes Berg056cdd52008-03-26 23:21:47 +0100291 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
292 u8 ssid[IEEE80211_MAX_SSID_LEN];
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300293 enum ieee80211_sta_mlme_state state;
Jiri Bencf0706e82007-05-05 11:45:53 -0700294 size_t ssid_len;
Helmut Schaaa0af5f12007-11-09 16:25:08 +0100295 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
296 size_t scan_ssid_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700297 u16 aid;
298 u16 ap_capab, capab;
299 u8 *extra_ie; /* to be added to the end of AssocReq */
300 size_t extra_ie_len;
301
302 /* The last AssocReq/Resp IEs */
303 u8 *assocreq_ies, *assocresp_ies;
304 size_t assocreq_ies_len, assocresp_ies_len;
305
Johannes Berg056cdd52008-03-26 23:21:47 +0100306 struct sk_buff_head skb_queue;
307
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300308 int assoc_scan_tries; /* number of scans done pre-association */
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300309 int direct_probe_tries; /* retries for direct probes */
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300310 int auth_tries; /* retries for auth req */
311 int assoc_tries; /* retries for assoc req */
Jiri Bencf0706e82007-05-05 11:45:53 -0700312
Johannes Berg056cdd52008-03-26 23:21:47 +0100313 unsigned long request;
314
315 unsigned long last_probe;
316
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400317 unsigned int flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700318
Jiri Bencf0706e82007-05-05 11:45:53 -0700319 unsigned int auth_algs; /* bitfield of allowed auth algs */
320 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
321 int auth_transaction;
322
Jouni Malinenfdfacf02009-01-08 13:32:05 +0200323 enum {
324 IEEE80211_MFP_DISABLED,
325 IEEE80211_MFP_OPTIONAL,
326 IEEE80211_MFP_REQUIRED
327 } mfp; /* management frame protection */
328
Jiri Bencf0706e82007-05-05 11:45:53 -0700329 unsigned long ibss_join_req;
330 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
Johannes Berg8318d782008-01-24 19:38:38 +0100331 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
Jiri Bencf0706e82007-05-05 11:45:53 -0700332
333 int wmm_last_param_set;
Jouni Malinen9aed3cc2009-01-13 16:03:29 +0200334
335 /* Extra IE data for management frames */
336 u8 *ie_probereq;
337 size_t ie_probereq_len;
338 u8 *ie_proberesp;
339 size_t ie_proberesp_len;
340 u8 *ie_auth;
341 size_t ie_auth_len;
342 u8 *ie_assocreq;
343 size_t ie_assocreq_len;
344 u8 *ie_reassocreq;
345 size_t ie_reassocreq_len;
346 u8 *ie_deauth;
347 size_t ie_deauth_len;
348 u8 *ie_disassoc;
349 size_t ie_disassoc_len;
Jiri Bencf0706e82007-05-05 11:45:53 -0700350};
351
Johannes Berg472dbc42008-09-11 00:01:49 +0200352struct ieee80211_if_mesh {
353 struct work_struct work;
354 struct timer_list housekeeping_timer;
355 struct timer_list mesh_path_timer;
356 struct sk_buff_head skb_queue;
357
358 bool housekeeping;
359
360 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
361 size_t mesh_id_len;
362 /* Active Path Selection Protocol Identifier */
363 u8 mesh_pp_id[4];
364 /* Active Path Selection Metric Identifier */
365 u8 mesh_pm_id[4];
366 /* Congestion Control Mode Identifier */
367 u8 mesh_cc_id[4];
368 /* Local mesh Destination Sequence Number */
369 u32 dsn;
370 /* Last used PREQ ID */
371 u32 preq_id;
372 atomic_t mpaths;
373 /* Timestamp of last DSN update */
374 unsigned long last_dsn_update;
375 /* Timestamp of last DSN sent */
376 unsigned long last_preq;
377 struct mesh_rmc *rmc;
378 spinlock_t mesh_preq_queue_lock;
379 struct mesh_preq_queue preq_queue;
380 int preq_queue_len;
381 struct mesh_stats mshstats;
382 struct mesh_config mshcfg;
383 u32 mesh_seqnum;
384 bool accepting_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200385};
Johannes Berg902acc72008-02-23 15:17:19 +0100386
387#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200388#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
389 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100390#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200391#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100392 do { } while (0)
393#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700394
Johannes Berg213cd112008-09-11 00:01:54 +0200395/**
396 * enum ieee80211_sub_if_data_flags - virtual interface flags
397 *
398 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
399 * @IEEE80211_SDATA_PROMISC: interface is promisc
400 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
401 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
402 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
403 * associated stations and deliver multicast frames both
404 * back to wireless media and to the local net stack.
405 */
406enum ieee80211_sub_if_data_flags {
407 IEEE80211_SDATA_ALLMULTI = BIT(0),
408 IEEE80211_SDATA_PROMISC = BIT(1),
409 IEEE80211_SDATA_USERSPACE_MLME = BIT(2),
410 IEEE80211_SDATA_OPERATING_GMODE = BIT(3),
411 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4),
412};
413
Jiri Bencf0706e82007-05-05 11:45:53 -0700414struct ieee80211_sub_if_data {
415 struct list_head list;
Jiri Bencf0706e82007-05-05 11:45:53 -0700416
417 struct wireless_dev wdev;
418
Johannes Berg11a843b2007-08-28 17:01:55 -0400419 /* keys */
420 struct list_head key_list;
421
Jiri Bencf0706e82007-05-05 11:45:53 -0700422 struct net_device *dev;
423 struct ieee80211_local *local;
424
Jiri Slaby13262ff2007-08-28 17:01:54 -0400425 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200426
Jiri Bencf0706e82007-05-05 11:45:53 -0700427 int drop_unencrypted;
Jiri Bencf0706e82007-05-05 11:45:53 -0700428
Jiri Bencf0706e82007-05-05 11:45:53 -0700429 /* Fragment table for host-based reassembly */
430 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
431 unsigned int fragment_next;
432
433#define NUM_DEFAULT_KEYS 4
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200434#define NUM_DEFAULT_MGMT_KEYS 2
435 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
Jiri Bencf0706e82007-05-05 11:45:53 -0700436 struct ieee80211_key *default_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200437 struct ieee80211_key *default_mgmt_key;
Jiri Bencf0706e82007-05-05 11:45:53 -0700438
Johannes Berg94778282008-10-10 13:21:59 +0200439 u16 sequence_number;
440
Johannes Berg3e122be2008-07-09 14:40:34 +0200441 /*
442 * AP this belongs to: self in AP mode and
443 * corresponding AP in VLAN mode, NULL for
444 * all others (might be needed later in IBSS)
445 */
446 struct ieee80211_if_ap *bss;
447
448 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
449 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
Jiri Bencf0706e82007-05-05 11:45:53 -0700450
451 union {
452 struct ieee80211_if_ap ap;
453 struct ieee80211_if_wds wds;
454 struct ieee80211_if_vlan vlan;
455 struct ieee80211_if_sta sta;
Johannes Berg472dbc42008-09-11 00:01:49 +0200456#ifdef CONFIG_MAC80211_MESH
457 struct ieee80211_if_mesh mesh;
458#endif
Michael Wu8cc9a732008-01-31 19:48:23 +0100459 u32 mntr_flags;
Jiri Bencf0706e82007-05-05 11:45:53 -0700460 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700461
462#ifdef CONFIG_MAC80211_DEBUGFS
463 struct dentry *debugfsdir;
464 union {
465 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700466 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700467 struct dentry *state;
468 struct dentry *bssid;
469 struct dentry *prev_bssid;
470 struct dentry *ssid_len;
471 struct dentry *aid;
472 struct dentry *ap_capab;
473 struct dentry *capab;
474 struct dentry *extra_ie_len;
475 struct dentry *auth_tries;
476 struct dentry *assoc_tries;
477 struct dentry *auth_algs;
478 struct dentry *auth_alg;
479 struct dentry *auth_transaction;
480 struct dentry *flags;
Jouni Malinen93015f02008-08-25 11:57:06 +0300481 struct dentry *force_unicast_rateidx;
482 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700483 } sta;
484 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700485 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700486 struct dentry *num_sta_ps;
Jiri Bence9f207f2007-05-05 11:46:38 -0700487 struct dentry *dtim_count;
Jiri Bence9f207f2007-05-05 11:46:38 -0700488 struct dentry *force_unicast_rateidx;
489 struct dentry *max_ratectrl_rateidx;
490 struct dentry *num_buffered_multicast;
Jiri Bence9f207f2007-05-05 11:46:38 -0700491 } ap;
492 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700493 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700494 struct dentry *peer;
Jouni Malinen93015f02008-08-25 11:57:06 +0300495 struct dentry *force_unicast_rateidx;
496 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700497 } wds;
498 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700499 struct dentry *drop_unencrypted;
Jouni Malinen93015f02008-08-25 11:57:06 +0300500 struct dentry *force_unicast_rateidx;
501 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700502 } vlan;
503 struct {
504 struct dentry *mode;
505 } monitor;
Jiri Bence9f207f2007-05-05 11:46:38 -0700506 } debugfs;
Jouni Malinen2b58b202008-08-28 15:12:06 +0300507 struct {
508 struct dentry *default_key;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200509 struct dentry *default_mgmt_key;
Jouni Malinen2b58b202008-08-28 15:12:06 +0300510 } common_debugfs;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100511
512#ifdef CONFIG_MAC80211_MESH
513 struct dentry *mesh_stats_dir;
514 struct {
515 struct dentry *fwded_frames;
516 struct dentry *dropped_frames_ttl;
517 struct dentry *dropped_frames_no_route;
518 struct dentry *estab_plinks;
Johannes Berg902acc72008-02-23 15:17:19 +0100519 struct timer_list mesh_path_timer;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100520 } mesh_stats;
521
522 struct dentry *mesh_config_dir;
523 struct {
524 struct dentry *dot11MeshRetryTimeout;
525 struct dentry *dot11MeshConfirmTimeout;
526 struct dentry *dot11MeshHoldingTimeout;
527 struct dentry *dot11MeshMaxRetries;
528 struct dentry *dot11MeshTTL;
529 struct dentry *auto_open_plinks;
530 struct dentry *dot11MeshMaxPeerLinks;
531 struct dentry *dot11MeshHWMPactivePathTimeout;
532 struct dentry *dot11MeshHWMPpreqMinInterval;
533 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
534 struct dentry *dot11MeshHWMPmaxPREQretries;
535 struct dentry *path_refresh_time;
536 struct dentry *min_discovery_timeout;
537 } mesh_config;
538#endif
539
Jiri Bence9f207f2007-05-05 11:46:38 -0700540#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100541 /* must be last, dynamically sized area in this! */
542 struct ieee80211_vif vif;
Jiri Bencf0706e82007-05-05 11:45:53 -0700543};
544
Johannes Berg32bfd352007-12-19 01:31:26 +0100545static inline
546struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
547{
548 return container_of(p, struct ieee80211_sub_if_data, vif);
549}
550
Johannes Berg472dbc42008-09-11 00:01:49 +0200551static inline void
552ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
553 u8 mesh_id_len, u8 *mesh_id)
554{
555#ifdef CONFIG_MAC80211_MESH
556 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
557 ifmsh->mesh_id_len = mesh_id_len;
558 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
559#else
560 WARN_ON(1);
561#endif
562}
563
Jiri Bencf0706e82007-05-05 11:45:53 -0700564enum {
565 IEEE80211_RX_MSG = 1,
566 IEEE80211_TX_STATUS_MSG = 2,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200567 IEEE80211_DELBA_MSG = 3,
568 IEEE80211_ADDBA_MSG = 4,
Jiri Bencf0706e82007-05-05 11:45:53 -0700569};
570
Kalle Valoce7c9112008-12-18 23:35:20 +0200571enum queue_stop_reason {
572 IEEE80211_QUEUE_STOP_REASON_DRIVER,
Kalle Valo520eb822008-12-18 23:35:27 +0200573 IEEE80211_QUEUE_STOP_REASON_PS,
Sujithc481ec92009-01-06 09:28:37 +0530574 IEEE80211_QUEUE_STOP_REASON_CSA
Kalle Valoce7c9112008-12-18 23:35:20 +0200575};
576
David S. Miller51cb6db2008-07-15 03:34:57 -0700577/* maximum number of hardware queues we support. */
578#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
579
Johannes Berg133b8222008-09-16 14:18:59 +0200580struct ieee80211_master_priv {
581 struct ieee80211_local *local;
582};
583
Jiri Bencf0706e82007-05-05 11:45:53 -0700584struct ieee80211_local {
585 /* embed the driver visible part.
586 * don't cast (use the static inlines below), but we keep
587 * it first anyway so they become a no-op */
588 struct ieee80211_hw hw;
589
590 const struct ieee80211_ops *ops;
591
David S. Miller51cb6db2008-07-15 03:34:57 -0700592 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
Kalle Valoce7c9112008-12-18 23:35:20 +0200593 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
594 spinlock_t queue_stop_reason_lock;
Jiri Bencf0706e82007-05-05 11:45:53 -0700595 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
Jiri Bencf0706e82007-05-05 11:45:53 -0700596 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100597 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100598 /* number of interfaces with corresponding FIF_ flags */
599 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
Johannes Berg4150c572007-09-17 01:29:23 -0400600 unsigned int filter_flags; /* FIF_* */
Jiri Bencf0706e82007-05-05 11:45:53 -0700601 struct iw_statistics wstats;
602 u8 wstats_flags;
Johannes Bergd0709a62008-02-25 16:27:46 +0100603 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Bergb306f452007-07-10 19:32:08 +0200604 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e82007-05-05 11:45:53 -0700605
Jiri Bencf0706e82007-05-05 11:45:53 -0700606 /* Tasklet and skb queue to process calls from IRQ mode. All frames
607 * added to skb_queue will be processed, but frames in
608 * skb_queue_unreliable may be dropped if the total length of these
609 * queues increases over the limit. */
610#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
611 struct tasklet_struct tasklet;
612 struct sk_buff_head skb_queue;
613 struct sk_buff_head skb_queue_unreliable;
614
Johannes Bergd0709a62008-02-25 16:27:46 +0100615 /* Station data */
616 /*
617 * The lock only protects the list, hash, timer and counter
618 * against manipulation, reads are done in RCU. Additionally,
Johannes Bergb16bd152008-04-11 21:40:35 +0200619 * the lock protects each BSS's TIM bitmap.
Johannes Bergd0709a62008-02-25 16:27:46 +0100620 */
621 spinlock_t sta_lock;
622 unsigned long num_sta;
Jiri Bencf0706e82007-05-05 11:45:53 -0700623 struct list_head sta_list;
Johannes Bergdc6676b2008-03-31 19:23:03 +0200624 struct list_head sta_flush_list;
625 struct work_struct sta_flush_work;
Jiri Bencf0706e82007-05-05 11:45:53 -0700626 struct sta_info *sta_hash[STA_HASH_SIZE];
627 struct timer_list sta_cleanup;
628
Johannes Berge2530082008-05-17 00:57:14 +0200629 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Tomas Winklerf8e79dd2008-07-24 18:46:44 +0300630 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Johannes Bergeefce912008-05-17 00:57:13 +0200631 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e82007-05-05 11:45:53 -0700632 struct tasklet_struct tx_pending_tasklet;
633
Johannes Berg53918992007-09-26 15:19:47 +0200634 /* number of interfaces with corresponding IFF_ flags */
635 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e82007-05-05 11:45:53 -0700636
637 struct rate_control_ref *rate_ctrl;
638
Jiri Bencf0706e82007-05-05 11:45:53 -0700639 int rts_threshold;
Jiri Bencf0706e82007-05-05 11:45:53 -0700640 int fragmentation_threshold;
Jiri Bencf0706e82007-05-05 11:45:53 -0700641
642 struct crypto_blkcipher *wep_tx_tfm;
643 struct crypto_blkcipher *wep_rx_tfm;
644 u32 wep_iv;
Jiri Bencf0706e82007-05-05 11:45:53 -0700645
Johannes Bergc771c9d2009-01-23 22:54:03 +0100646 /* see iface.c */
Johannes Berg79010422007-09-18 17:29:21 -0400647 struct list_head interfaces;
Johannes Bergc771c9d2009-01-23 22:54:03 +0100648 struct mutex iflist_mtx;
Johannes Berg79010422007-09-18 17:29:21 -0400649
Johannes Bergb16bd152008-04-11 21:40:35 +0200650 /*
651 * Key lock, protects sdata's key_list and sta_info's
652 * key pointers (write access, they're RCU.)
653 */
654 spinlock_t key_lock;
655
656
Johannes Bergc2b13452008-09-11 00:01:55 +0200657 /* Scanning and BSS list */
658 bool sw_scanning, hw_scanning;
Jiri Bencf0706e82007-05-05 11:45:53 -0700659 int scan_channel_idx;
Johannes Berg8318d782008-01-24 19:38:38 +0100660 enum ieee80211_band scan_band;
661
Jiri Bencf0706e82007-05-05 11:45:53 -0700662 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
663 unsigned long last_scan_completed;
664 struct delayed_work scan_work;
Johannes Berg491775a2008-09-08 17:44:23 +0200665 struct ieee80211_sub_if_data *scan_sdata;
Sujithc481ec92009-01-06 09:28:37 +0530666 struct ieee80211_channel *oper_channel, *scan_channel, *csa_channel;
Sujith094d05d2008-12-12 11:57:43 +0530667 enum nl80211_channel_type oper_channel_type;
Jiri Bencf0706e82007-05-05 11:45:53 -0700668 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
669 size_t scan_ssid_len;
Johannes Bergc2b13452008-09-11 00:01:55 +0200670 struct list_head bss_list;
671 struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
672 spinlock_t bss_lock;
Jiri Bencf0706e82007-05-05 11:45:53 -0700673
674 /* SNMP counters */
675 /* dot11CountersTable */
676 u32 dot11TransmittedFragmentCount;
677 u32 dot11MulticastTransmittedFrameCount;
678 u32 dot11FailedCount;
679 u32 dot11RetryCount;
680 u32 dot11MultipleRetryCount;
681 u32 dot11FrameDuplicateCount;
682 u32 dot11ReceivedFragmentCount;
683 u32 dot11MulticastReceivedFrameCount;
684 u32 dot11TransmittedFrameCount;
Jiri Bencf0706e82007-05-05 11:45:53 -0700685
686#ifdef CONFIG_MAC80211_LEDS
687 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100688 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
689 char tx_led_name[32], rx_led_name[32],
690 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e82007-05-05 11:45:53 -0700691#endif
692
Jiri Bence9f207f2007-05-05 11:46:38 -0700693#ifdef CONFIG_MAC80211_DEBUGFS
694 struct work_struct sta_debugfs_add;
695#endif
696
Jiri Bencf0706e82007-05-05 11:45:53 -0700697#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
698 /* TX/RX handler statistics */
699 unsigned int tx_handlers_drop;
700 unsigned int tx_handlers_queued;
701 unsigned int tx_handlers_drop_unencrypted;
702 unsigned int tx_handlers_drop_fragment;
703 unsigned int tx_handlers_drop_wep;
704 unsigned int tx_handlers_drop_not_assoc;
705 unsigned int tx_handlers_drop_unauth_port;
706 unsigned int rx_handlers_drop;
707 unsigned int rx_handlers_queued;
708 unsigned int rx_handlers_drop_nullfunc;
709 unsigned int rx_handlers_drop_defrag;
710 unsigned int rx_handlers_drop_short;
711 unsigned int rx_handlers_drop_passive_scan;
712 unsigned int tx_expand_skb_head;
713 unsigned int tx_expand_skb_head_cloned;
714 unsigned int rx_expand_skb_head;
715 unsigned int rx_expand_skb_head2;
716 unsigned int rx_handlers_fragments;
717 unsigned int tx_status_drop;
Jiri Bencf0706e82007-05-05 11:45:53 -0700718#define I802_DEBUG_INC(c) (c)++
719#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
720#define I802_DEBUG_INC(c) do { } while (0)
721#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
722
723
Jiri Bencf0706e82007-05-05 11:45:53 -0700724 int total_ps_buffered; /* total number of all buffered unicast and
725 * multicast packets for power saving stations
726 */
Jiri Bencf0706e82007-05-05 11:45:53 -0700727 int wifi_wme_noack_test;
728 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
Kalle Valo520eb822008-12-18 23:35:27 +0200729
Kalle Valoe0cb6862008-12-18 23:35:13 +0200730 bool powersave;
Kalle Valo520eb822008-12-18 23:35:27 +0200731 struct work_struct dynamic_ps_enable_work;
732 struct work_struct dynamic_ps_disable_work;
733 struct timer_list dynamic_ps_timer;
Jiri Bencf0706e82007-05-05 11:45:53 -0700734
Johannes Berg2bf30fa2009-01-06 23:23:56 +0100735 int user_power_level; /* in dBm */
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +0530736 int power_constr_level; /* in dBm */
Johannes Berg2bf30fa2009-01-06 23:23:56 +0100737
Jiri Bence9f207f2007-05-05 11:46:38 -0700738#ifdef CONFIG_MAC80211_DEBUGFS
739 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +0200740 struct dentry *rcdir;
741 struct dentry *rcname;
Jiri Bence9f207f2007-05-05 11:46:38 -0700742 struct dentry *frequency;
Jiri Bence9f207f2007-05-05 11:46:38 -0700743 struct dentry *rts_threshold;
744 struct dentry *fragmentation_threshold;
745 struct dentry *short_retry_limit;
746 struct dentry *long_retry_limit;
747 struct dentry *total_ps_buffered;
Jiri Bence9f207f2007-05-05 11:46:38 -0700748 struct dentry *wep_iv;
Alina Friedrichsenae54c982009-01-23 05:33:37 +0100749 struct dentry *tsf;
Jiri Bence9f207f2007-05-05 11:46:38 -0700750 struct dentry *statistics;
751 struct local_debugfsdentries_statsdentries {
752 struct dentry *transmitted_fragment_count;
753 struct dentry *multicast_transmitted_frame_count;
754 struct dentry *failed_count;
755 struct dentry *retry_count;
756 struct dentry *multiple_retry_count;
757 struct dentry *frame_duplicate_count;
758 struct dentry *received_fragment_count;
759 struct dentry *multicast_received_frame_count;
760 struct dentry *transmitted_frame_count;
761 struct dentry *wep_undecryptable_count;
762 struct dentry *num_scans;
763#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
764 struct dentry *tx_handlers_drop;
765 struct dentry *tx_handlers_queued;
766 struct dentry *tx_handlers_drop_unencrypted;
767 struct dentry *tx_handlers_drop_fragment;
768 struct dentry *tx_handlers_drop_wep;
769 struct dentry *tx_handlers_drop_not_assoc;
770 struct dentry *tx_handlers_drop_unauth_port;
771 struct dentry *rx_handlers_drop;
772 struct dentry *rx_handlers_queued;
773 struct dentry *rx_handlers_drop_nullfunc;
774 struct dentry *rx_handlers_drop_defrag;
775 struct dentry *rx_handlers_drop_short;
776 struct dentry *rx_handlers_drop_passive_scan;
777 struct dentry *tx_expand_skb_head;
778 struct dentry *tx_expand_skb_head_cloned;
779 struct dentry *rx_expand_skb_head;
780 struct dentry *rx_expand_skb_head2;
781 struct dentry *rx_handlers_fragments;
782 struct dentry *tx_status_drop;
Jiri Bence9f207f2007-05-05 11:46:38 -0700783#endif
784 struct dentry *dot11ACKFailureCount;
785 struct dentry *dot11RTSFailureCount;
786 struct dentry *dot11FCSErrorCount;
787 struct dentry *dot11RTSSuccessCount;
788 } stats;
789 struct dentry *stations;
790 struct dentry *keys;
791 } debugfs;
792#endif
Jiri Bencf0706e82007-05-05 11:45:53 -0700793};
794
Johannes Berg3e122be2008-07-09 14:40:34 +0200795static inline struct ieee80211_sub_if_data *
796IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
797{
798 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
799
800 BUG_ON(!local || local->mdev == dev);
801
802 return netdev_priv(dev);
803}
804
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200805/* this struct represents 802.11n's RA/TID combination */
806struct ieee80211_ra_tid {
807 u8 ra[ETH_ALEN];
808 u16 tid;
809};
810
Luis Carlos Coboee385852008-02-23 15:17:11 +0100811/* Parsed Information Elements */
812struct ieee802_11_elems {
Jouni Malinen43ac2ca2008-08-15 22:21:27 +0300813 u8 *ie_start;
814 size_t total_len;
815
Luis Carlos Coboee385852008-02-23 15:17:11 +0100816 /* pointers to IEs */
817 u8 *ssid;
818 u8 *supp_rates;
819 u8 *fh_params;
820 u8 *ds_params;
821 u8 *cf_params;
822 u8 *tim;
823 u8 *ibss_params;
824 u8 *challenge;
825 u8 *wpa;
826 u8 *rsn;
827 u8 *erp_info;
828 u8 *ext_supp_rates;
829 u8 *wmm_info;
830 u8 *wmm_param;
Johannes Berg09914812008-10-07 19:31:17 +0200831 struct ieee80211_ht_cap *ht_cap_elem;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200832 struct ieee80211_ht_info *ht_info_elem;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100833 u8 *mesh_config;
834 u8 *mesh_id;
835 u8 *peer_link;
836 u8 *preq;
837 u8 *prep;
838 u8 *perr;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300839 u8 *ch_switch_elem;
840 u8 *country_elem;
841 u8 *pwr_constr_elem;
842 u8 *quiet_elem; /* first quite element */
Jouni Malinenf797eb72009-01-19 18:48:46 +0200843 u8 *timeout_int;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100844
845 /* length of them, respectively */
846 u8 ssid_len;
847 u8 supp_rates_len;
848 u8 fh_params_len;
849 u8 ds_params_len;
850 u8 cf_params_len;
851 u8 tim_len;
852 u8 ibss_params_len;
853 u8 challenge_len;
854 u8 wpa_len;
855 u8 rsn_len;
856 u8 erp_info_len;
857 u8 ext_supp_rates_len;
858 u8 wmm_info_len;
859 u8 wmm_param_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100860 u8 mesh_config_len;
861 u8 mesh_id_len;
862 u8 peer_link_len;
863 u8 preq_len;
864 u8 prep_len;
865 u8 perr_len;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300866 u8 ch_switch_elem_len;
867 u8 country_elem_len;
868 u8 pwr_constr_elem_len;
869 u8 quiet_elem_len;
870 u8 num_of_quiet_elem; /* can be more the one */
Jouni Malinenf797eb72009-01-19 18:48:46 +0200871 u8 timeout_int_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100872};
873
Jiri Bencf0706e82007-05-05 11:45:53 -0700874static inline struct ieee80211_local *hw_to_local(
875 struct ieee80211_hw *hw)
876{
877 return container_of(hw, struct ieee80211_local, hw);
878}
879
880static inline struct ieee80211_hw *local_to_hw(
881 struct ieee80211_local *local)
882{
883 return &local->hw;
884}
885
Jiri Bencf0706e82007-05-05 11:45:53 -0700886
Johannes Berg571ecf62007-07-27 15:43:22 +0200887static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
888{
889 return compare_ether_addr(raddr, addr) == 0 ||
890 is_broadcast_ether_addr(raddr);
891}
892
893
Johannes Berge8975582008-10-09 12:18:51 +0200894int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg9d139c82008-07-09 14:40:37 +0200895int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +0100896void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200897void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
898 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +0200899void ieee80211_configure_filter(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -0700900
Johannes Berg9c6bd792008-09-11 00:01:52 +0200901/* wireless extensions */
Jiri Bencf0706e82007-05-05 11:45:53 -0700902extern const struct iw_handler_def ieee80211_iw_handler_def;
David S. Miller65b53e4c2008-06-10 02:22:26 -0700903
Johannes Berg9c6bd792008-09-11 00:01:52 +0200904/* STA/IBSS code */
905void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Bergc2b13452008-09-11 00:01:55 +0200906void ieee80211_scan_work(struct work_struct *work);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200907void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
Jiri Bencf0706e82007-05-05 11:45:53 -0700908 struct ieee80211_rx_status *rx_status);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200909int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
910int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
911int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200912void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
Jiri Bencf0706e82007-05-05 11:45:53 -0700913 struct ieee80211_if_sta *ifsta);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200914struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
Johannes Berg881d9482009-01-21 15:13:48 +0100915 u8 *bssid, u8 *addr, u32 supp_rates);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200916int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
917int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
918u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Johannes Berg881d9482009-01-21 15:13:48 +0100919u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
Johannes Berg9c6bd792008-09-11 00:01:52 +0200920 struct ieee802_11_elems *elems,
921 enum ieee80211_band band);
922void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
923 u8 *ssid, size_t ssid_len);
924
925/* scan/BSS handling */
Johannes Bergc2b13452008-09-11 00:01:55 +0200926int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
927 u8 *ssid, size_t ssid_len);
928int ieee80211_scan_results(struct ieee80211_local *local,
929 struct iw_request_info *info,
930 char *buf, size_t len);
931ieee80211_rx_result
932ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
933 struct sk_buff *skb,
934 struct ieee80211_rx_status *rx_status);
Johannes Berg3e122be2008-07-09 14:40:34 +0200935void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
936void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +0200937int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
938 char *ie, size_t len);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200939
Johannes Berg0a51b272008-09-08 17:44:25 +0200940void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +0200941int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
942 u8 *ssid, size_t ssid_len);
943struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200944ieee80211_bss_info_update(struct ieee80211_local *local,
945 struct ieee80211_rx_status *rx_status,
946 struct ieee80211_mgmt *mgmt,
947 size_t len,
948 struct ieee802_11_elems *elems,
949 int freq, bool beacon);
Johannes Bergc2b13452008-09-11 00:01:55 +0200950struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +0200951ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
952 u8 *ssid, u8 ssid_len);
Johannes Bergc2b13452008-09-11 00:01:55 +0200953struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +0200954ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
955 u8 *ssid, u8 ssid_len);
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200956void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +0200957 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +0100958
Johannes Berg3e122be2008-07-09 14:40:34 +0200959/* interface handling */
960int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg05c914f2008-09-11 00:01:58 +0200961 struct net_device **new_dev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +0100962 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +0200963int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +0200964 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200965void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +0200966void ieee80211_remove_interfaces(struct ieee80211_local *local);
Jiri Bencf0706e82007-05-05 11:45:53 -0700967
Johannes Berge2ebc742007-07-27 15:43:22 +0200968/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +0200969void ieee80211_clear_tx_pending(struct ieee80211_local *local);
970void ieee80211_tx_pending(unsigned long data);
971int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
972int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
973int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +0200974
Johannes Bergde1ede72008-09-09 14:42:50 +0200975/* HT */
Johannes Bergae5eb022008-10-14 16:58:37 +0200976void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
977 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200978 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergae5eb022008-10-14 16:58:37 +0200979u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
980 struct ieee80211_ht_info *hti,
981 u16 ap_ht_cap_flags);
Johannes Bergde1ede72008-09-09 14:42:50 +0200982void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
983
984void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
985 u16 tid, u16 initiator, u16 reason);
986void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
987void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
988 struct sta_info *sta,
989 struct ieee80211_mgmt *mgmt, size_t len);
990void ieee80211_process_addba_resp(struct ieee80211_local *local,
991 struct sta_info *sta,
992 struct ieee80211_mgmt *mgmt,
993 size_t len);
994void ieee80211_process_addba_request(struct ieee80211_local *local,
995 struct sta_info *sta,
996 struct ieee80211_mgmt *mgmt,
997 size_t len);
998
Johannes Berg39192c02008-09-09 14:49:03 +0200999/* Spectrum management */
1000void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1001 struct ieee80211_mgmt *mgmt,
1002 size_t len);
Sujithc481ec92009-01-06 09:28:37 +05301003void ieee80211_chswitch_timer(unsigned long data);
1004void ieee80211_chswitch_work(struct work_struct *work);
1005void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1006 struct ieee80211_channel_sw_ie *sw_elem,
1007 struct ieee80211_bss *bss);
Vasanthakumar Thiagarajana8302de2009-01-09 18:14:15 +05301008void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
1009 u16 capab_info, u8 *pwr_constr_elem,
1010 u8 pwr_constr_elem_len);
Johannes Berg39192c02008-09-09 14:49:03 +02001011
Bob Copeland665af4f2009-01-19 11:20:53 -05001012/* Suspend/resume */
1013int __ieee80211_suspend(struct ieee80211_hw *hw);
1014int __ieee80211_resume(struct ieee80211_hw *hw);
1015
Johannes Bergc2d15602007-07-27 15:43:23 +02001016/* utility functions/constants */
1017extern void *mac80211_wiphy_privid; /* for wiphy privid */
1018extern const unsigned char rfc1042_header[6];
1019extern const unsigned char bridge_tunnel_header[6];
Ron Rindjunsky71364712007-12-25 17:00:36 +02001020u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +02001021 enum nl80211_iftype type);
Johannes Bergc2d15602007-07-27 15:43:23 +02001022int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1023 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +12001024void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Bergeb063c12007-08-28 17:01:53 -04001025 struct ieee80211_hdr *hdr);
Johannes Berg5825fe102008-09-09 12:56:01 +02001026void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
Johannes Berge50db652008-09-09 15:07:09 +02001027void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1028 int encrypt);
Johannes Berg9c6bd792008-09-11 00:01:52 +02001029void ieee802_11_parse_elems(u8 *start, size_t len,
1030 struct ieee802_11_elems *elems);
Johannes Berge16751c2008-09-11 00:01:53 +02001031int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
Johannes Berg881d9482009-01-21 15:13:48 +01001032u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
Johannes Berg96dd22a2008-09-11 00:01:57 +02001033 enum ieee80211_band band);
Jiri Bencf0706e82007-05-05 11:45:53 -07001034
Kalle Valo520eb822008-12-18 23:35:27 +02001035void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1036void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1037void ieee80211_dynamic_ps_timer(unsigned long data);
Vivek Natarajana97b77b2008-12-23 18:39:02 -08001038void ieee80211_send_nullfunc(struct ieee80211_local *local,
1039 struct ieee80211_sub_if_data *sdata,
1040 int powersave);
Kalle Valo520eb822008-12-18 23:35:27 +02001041
Kalle Valoce7c9112008-12-18 23:35:20 +02001042void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1043 enum queue_stop_reason reason);
1044void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1045 enum queue_stop_reason reason);
1046
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001047#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001048#define debug_noinline noinline
1049#else
1050#define debug_noinline
1051#endif
1052
Jiri Bencf0706e82007-05-05 11:45:53 -07001053#endif /* IEEE80211_I_H */