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Jiri Bencf0706e822007-05-05 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 Bencf0706e822007-05-05 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>
Jiri Bencf0706e822007-05-05 11:45:53 -070026#include <net/wireless.h>
David S. Millerccc58052008-06-16 18:50:49 -070027#include <net/iw_handler.h>
David S. Miller51cb6db2008-07-15 03:34:57 -070028#include <net/mac80211.h>
Johannes Berg2c8dccc2008-04-08 15:14:40 -040029#include "key.h"
Jiri Bencf0706e822007-05-05 11:45:53 -070030#include "sta_info.h"
31
32/* ieee80211.o internal definitions, etc. These are not included into
33 * low-level drivers. */
34
Johannes Berg9cfb0002008-04-03 15:17:31 +020035struct ieee80211_local;
Jiri Bencf0706e822007-05-05 11:45:53 -070036
37/* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39#define AP_MAX_BC_BUFFER 128
40
41/* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44#define TOTAL_MAX_TX_BUFFER 512
45
46/* Required encryption head and tailroom */
47#define IEEE80211_ENCRYPT_HEADROOM 8
48#define IEEE80211_ENCRYPT_TAILROOM 12
49
50/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54#define IEEE80211_FRAGMENT_MAX 4
55
56struct ieee80211_fragment_entry {
57 unsigned long first_frag_time;
58 unsigned int seq;
59 unsigned int rx_queue;
60 unsigned int last_frag;
61 unsigned int extra_len;
62 struct sk_buff_head skb_list;
63 int ccmp; /* Whether fragments were encrypted with CCMP */
64 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
65};
66
67
68struct ieee80211_sta_bss {
69 struct list_head list;
70 struct ieee80211_sta_bss *hnext;
Johannes Berg056cdd52008-03-26 23:21:47 +010071 size_t ssid_len;
72
Jiri Bencf0706e822007-05-05 11:45:53 -070073 atomic_t users;
74
75 u8 bssid[ETH_ALEN];
76 u8 ssid[IEEE80211_MAX_SSID_LEN];
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080077 u8 dtim_period;
Jiri Bencf0706e822007-05-05 11:45:53 -070078 u16 capability; /* host byte order */
Johannes Berg8318d782008-01-24 19:38:38 +010079 enum ieee80211_band band;
Jiri Bencf0706e822007-05-05 11:45:53 -070080 int freq;
Bruno Randolf566bfe52008-05-08 19:15:40 +020081 int signal, noise, qual;
Jiri Bencf0706e822007-05-05 11:45:53 -070082 u8 *wpa_ie;
83 size_t wpa_ie_len;
84 u8 *rsn_ie;
85 size_t rsn_ie_len;
86 u8 *wmm_ie;
87 size_t wmm_ie_len;
Ron Rindjunskyc7153502007-11-26 16:14:31 +020088 u8 *ht_ie;
89 size_t ht_ie_len;
Emmanuel Grumbach93061022008-05-29 16:35:23 +080090 u8 *ht_add_ie;
91 size_t ht_add_ie_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +010092#ifdef CONFIG_MAC80211_MESH
93 u8 *mesh_id;
94 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040095 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010096#endif
Jiri Bencf0706e822007-05-05 11:45:53 -070097#define IEEE80211_MAX_SUPP_RATES 32
98 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
99 size_t supp_rates_len;
Jiri Bencf0706e822007-05-05 11:45:53 -0700100 u64 timestamp;
Johannes Berg056cdd52008-03-26 23:21:47 +0100101 int beacon_int;
Jiri Bencf0706e822007-05-05 11:45:53 -0700102
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300103 unsigned long last_probe_resp;
Jiri Bencf0706e822007-05-05 11:45:53 -0700104 unsigned long last_update;
105
Daniel Drake56282212007-07-10 19:32:10 +0200106 /* during assocation, we save an ERP value from a probe response so
107 * that we can feed ERP info to the driver when handling the
108 * association completes. these fields probably won't be up-to-date
109 * otherwise, you probably don't want to use them. */
110 int has_erp_value;
111 u8 erp_value;
Jiri Bencf0706e822007-05-05 11:45:53 -0700112};
113
John W. Linville24736702008-04-08 14:15:46 -0400114static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100115{
116#ifdef CONFIG_MAC80211_MESH
117 return bss->mesh_cfg;
118#endif
119 return NULL;
120}
121
122static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
123{
124#ifdef CONFIG_MAC80211_MESH
125 return bss->mesh_id;
126#endif
127 return NULL;
128}
129
130static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
131{
132#ifdef CONFIG_MAC80211_MESH
133 return bss->mesh_id_len;
134#endif
135 return 0;
136}
137
Jiri Bencf0706e822007-05-05 11:45:53 -0700138
Johannes Berg9ae54c82008-01-31 19:48:20 +0100139typedef unsigned __bitwise__ ieee80211_tx_result;
140#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
141#define TX_DROP ((__force ieee80211_tx_result) 1u)
142#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
143
Johannes Berg5cf121c2008-02-25 16:27:43 +0100144#define IEEE80211_TX_FRAGMENTED BIT(0)
145#define IEEE80211_TX_UNICAST BIT(1)
146#define IEEE80211_TX_PS_BUFFERED BIT(2)
147#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100148
Johannes Berg5cf121c2008-02-25 16:27:43 +0100149struct ieee80211_tx_data {
Jiri Bencf0706e822007-05-05 11:45:53 -0700150 struct sk_buff *skb;
151 struct net_device *dev;
152 struct ieee80211_local *local;
153 struct ieee80211_sub_if_data *sdata;
154 struct sta_info *sta;
Jiri Bencf0706e822007-05-05 11:45:53 -0700155 struct ieee80211_key *key;
Jiri Bencf0706e822007-05-05 11:45:53 -0700156
Johannes Berg5cf121c2008-02-25 16:27:43 +0100157 struct ieee80211_channel *channel;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200158 s8 rate_idx;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100159 /* use this rate (if set) for last fragment; rate can
160 * be set to lower rate for the first fragments, e.g.,
161 * when using CTS protection with IEEE 802.11g. */
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200162 s8 last_frag_rate_idx;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100163
164 /* Extra fragments (in addition to the first fragment
165 * in skb) */
Johannes Berg5cf121c2008-02-25 16:27:43 +0100166 struct sk_buff **extra_frag;
Johannes Berg056cdd52008-03-26 23:21:47 +0100167 int num_extra_frag;
168
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700169 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100170 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100171};
172
173
174typedef unsigned __bitwise__ ieee80211_rx_result;
175#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
176#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
177#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
178#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
179
180#define IEEE80211_RX_IN_SCAN BIT(0)
181/* frame is destined to interface currently processed (incl. multicast frames) */
182#define IEEE80211_RX_RA_MATCH BIT(1)
183#define IEEE80211_RX_AMSDU BIT(2)
184#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
185#define IEEE80211_RX_FRAGMENTED BIT(4)
186
187struct ieee80211_rx_data {
188 struct sk_buff *skb;
189 struct net_device *dev;
190 struct ieee80211_local *local;
191 struct ieee80211_sub_if_data *sdata;
192 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100193 struct ieee80211_key *key;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100194 struct ieee80211_rx_status *status;
195 struct ieee80211_rate *rate;
Johannes Berg056cdd52008-03-26 23:21:47 +0100196
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700197 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100198 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100199 int sent_ps_buffered;
200 int queue;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100201 u32 tkip_iv32;
202 u16 tkip_iv16;
Jiri Bencf0706e822007-05-05 11:45:53 -0700203};
204
Jiri Bencf0706e822007-05-05 11:45:53 -0700205struct ieee80211_tx_stored_packet {
Jiri Bencf0706e822007-05-05 11:45:53 -0700206 struct sk_buff *skb;
Jiri Bencf0706e822007-05-05 11:45:53 -0700207 struct sk_buff **extra_frag;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200208 s8 last_frag_rate_idx;
Johannes Berg056cdd52008-03-26 23:21:47 +0100209 int num_extra_frag;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200210 bool last_frag_rate_ctrl_probe;
Jiri Bencf0706e822007-05-05 11:45:53 -0700211};
212
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100213struct beacon_data {
214 u8 *head, *tail;
215 int head_len, tail_len;
216 int dtim_period;
217};
218
Jiri Bencf0706e822007-05-05 11:45:53 -0700219struct ieee80211_if_ap {
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100220 struct beacon_data *beacon;
Jiri Bencf0706e822007-05-05 11:45:53 -0700221
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400222 struct list_head vlans;
223
Jiri Bencf0706e822007-05-05 11:45:53 -0700224 u8 ssid[IEEE80211_MAX_SSID_LEN];
225 size_t ssid_len;
Jiri Bencf0706e822007-05-05 11:45:53 -0700226
227 /* yes, this looks ugly, but guarantees that we can later use
228 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100229 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e822007-05-05 11:45:53 -0700230 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e822007-05-05 11:45:53 -0700231 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100232 atomic_t num_sta_ps; /* number of stations in PS mode */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100233 int dtim_count;
Jiri Bencf0706e822007-05-05 11:45:53 -0700234 int num_beacons; /* number of TXed beacon frames for this BSS */
235};
236
237struct ieee80211_if_wds {
Jiri Bencf0706e822007-05-05 11:45:53 -0700238 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100239 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e822007-05-05 11:45:53 -0700240};
241
242struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400243 struct list_head list;
Jiri Bencf0706e822007-05-05 11:45:53 -0700244};
245
Luis Carlos Coboee385852008-02-23 15:17:11 +0100246struct mesh_stats {
247 __u32 fwded_frames; /* Mesh forwarded frames */
248 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
249 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
250 atomic_t estab_plinks;
251};
252
253#define PREQ_Q_F_START 0x1
254#define PREQ_Q_F_REFRESH 0x2
255struct mesh_preq_queue {
256 struct list_head list;
257 u8 dst[ETH_ALEN];
258 u8 flags;
259};
260
Luis Carlos Coboee385852008-02-23 15:17:11 +0100261struct mesh_config {
262 /* Timeouts in ms */
263 /* Mesh plink management parameters */
264 u16 dot11MeshRetryTimeout;
265 u16 dot11MeshConfirmTimeout;
266 u16 dot11MeshHoldingTimeout;
267 u16 dot11MeshMaxPeerLinks;
268 u8 dot11MeshMaxRetries;
269 u8 dot11MeshTTL;
270 bool auto_open_plinks;
271 /* HWMP parameters */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100272 u8 dot11MeshHWMPmaxPREQretries;
273 u32 path_refresh_time;
274 u16 min_discovery_timeout;
Johannes Berg056cdd52008-03-26 23:21:47 +0100275 u32 dot11MeshHWMPactivePathTimeout;
276 u16 dot11MeshHWMPpreqMinInterval;
277 u16 dot11MeshHWMPnetDiameterTraversalTime;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100278};
Johannes Berg902acc72008-02-23 15:17:19 +0100279
Luis Carlos Coboee385852008-02-23 15:17:11 +0100280
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400281/* flags used in struct ieee80211_if_sta.flags */
282#define IEEE80211_STA_SSID_SET BIT(0)
283#define IEEE80211_STA_BSSID_SET BIT(1)
284#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
285#define IEEE80211_STA_AUTHENTICATED BIT(3)
286#define IEEE80211_STA_ASSOCIATED BIT(4)
287#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
288#define IEEE80211_STA_CREATE_IBSS BIT(6)
289#define IEEE80211_STA_MIXED_CELL BIT(7)
290#define IEEE80211_STA_WMM_ENABLED BIT(8)
291#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
292#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
293#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
Johannes Berg5b98b1f2007-11-03 13:11:10 +0000294#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300295/* flags for MLME request*/
296#define IEEE80211_STA_REQ_SCAN 0
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300297#define IEEE80211_STA_REQ_DIRECT_PROBE 1
298#define IEEE80211_STA_REQ_AUTH 2
299#define IEEE80211_STA_REQ_RUN 3
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300300
301/* flags used for setting mlme state */
302enum ieee80211_sta_mlme_state {
303 IEEE80211_STA_MLME_DISABLED,
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300304 IEEE80211_STA_MLME_DIRECT_PROBE,
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300305 IEEE80211_STA_MLME_AUTHENTICATE,
306 IEEE80211_STA_MLME_ASSOCIATE,
307 IEEE80211_STA_MLME_ASSOCIATED,
308 IEEE80211_STA_MLME_IBSS_SEARCH,
309 IEEE80211_STA_MLME_IBSS_JOINED,
310 IEEE80211_STA_MLME_MESH_UP
311};
312
313/* bitfield of allowed auth algs */
314#define IEEE80211_AUTH_ALG_OPEN BIT(0)
315#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
316#define IEEE80211_AUTH_ALG_LEAP BIT(2)
317
Jiri Bencf0706e822007-05-05 11:45:53 -0700318struct ieee80211_if_sta {
Johannes Berg056cdd52008-03-26 23:21:47 +0100319 struct timer_list timer;
320 struct work_struct work;
321 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
322 u8 ssid[IEEE80211_MAX_SSID_LEN];
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300323 enum ieee80211_sta_mlme_state state;
Jiri Bencf0706e822007-05-05 11:45:53 -0700324 size_t ssid_len;
Helmut Schaaa0af5f12007-11-09 16:25:08 +0100325 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
326 size_t scan_ssid_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100327#ifdef CONFIG_MAC80211_MESH
328 struct timer_list mesh_path_timer;
329 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
Luis Carlos Coboee385852008-02-23 15:17:11 +0100330 size_t mesh_id_len;
331 /* Active Path Selection Protocol Identifier */
332 u8 mesh_pp_id[4];
333 /* Active Path Selection Metric Identifier */
334 u8 mesh_pm_id[4];
335 /* Congestion Control Mode Identifier */
336 u8 mesh_cc_id[4];
337 /* Local mesh Destination Sequence Number */
338 u32 dsn;
339 /* Last used PREQ ID */
340 u32 preq_id;
341 atomic_t mpaths;
342 /* Timestamp of last DSN update */
343 unsigned long last_dsn_update;
344 /* Timestamp of last DSN sent */
345 unsigned long last_preq;
346 struct mesh_rmc *rmc;
347 spinlock_t mesh_preq_queue_lock;
348 struct mesh_preq_queue preq_queue;
349 int preq_queue_len;
350 struct mesh_stats mshstats;
351 struct mesh_config mshcfg;
Luis Carlos Cobo51cedda2008-04-23 12:15:29 -0700352 u32 mesh_seqnum;
Johannes Berg056cdd52008-03-26 23:21:47 +0100353 bool accepting_plinks;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100354#endif
Jiri Bencf0706e822007-05-05 11:45:53 -0700355 u16 aid;
356 u16 ap_capab, capab;
357 u8 *extra_ie; /* to be added to the end of AssocReq */
358 size_t extra_ie_len;
359
360 /* The last AssocReq/Resp IEs */
361 u8 *assocreq_ies, *assocresp_ies;
362 size_t assocreq_ies_len, assocresp_ies_len;
363
Johannes Berg056cdd52008-03-26 23:21:47 +0100364 struct sk_buff_head skb_queue;
365
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300366 int assoc_scan_tries; /* number of scans done pre-association */
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300367 int direct_probe_tries; /* retries for direct probes */
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300368 int auth_tries; /* retries for auth req */
369 int assoc_tries; /* retries for assoc req */
Jiri Bencf0706e822007-05-05 11:45:53 -0700370
Johannes Berg056cdd52008-03-26 23:21:47 +0100371 unsigned long request;
372
373 unsigned long last_probe;
374
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400375 unsigned int flags;
Jiri Bencf0706e822007-05-05 11:45:53 -0700376
Jiri Bencf0706e822007-05-05 11:45:53 -0700377 unsigned int auth_algs; /* bitfield of allowed auth algs */
378 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
379 int auth_transaction;
380
381 unsigned long ibss_join_req;
382 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
Johannes Berg8318d782008-01-24 19:38:38 +0100383 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
Jiri Bencf0706e822007-05-05 11:45:53 -0700384
385 int wmm_last_param_set;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100386 int num_beacons; /* number of TXed beacon frames by this STA */
Jiri Bencf0706e822007-05-05 11:45:53 -0700387};
388
Johannes Berg902acc72008-02-23 15:17:19 +0100389static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
390 u8 mesh_id_len, u8 *mesh_id)
391{
392#ifdef CONFIG_MAC80211_MESH
393 ifsta->mesh_id_len = mesh_id_len;
394 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
395#endif
396}
397
398#ifdef CONFIG_MAC80211_MESH
399#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
400 do { (sta)->mshstats.name++; } while (0)
401#else
402#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
403 do { } while (0)
404#endif
Jiri Bencf0706e822007-05-05 11:45:53 -0700405
Jiri Slaby13262ff2007-08-28 17:01:54 -0400406/* flags used in struct ieee80211_sub_if_data.flags */
407#define IEEE80211_SDATA_ALLMULTI BIT(0)
408#define IEEE80211_SDATA_PROMISC BIT(1)
Johannes Berg471b3ef2007-12-28 14:32:58 +0100409#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
Johannes Berg8318d782008-01-24 19:38:38 +0100410#define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
Jiri Bencf0706e822007-05-05 11:45:53 -0700411struct ieee80211_sub_if_data {
412 struct list_head list;
Jiri Bencf0706e822007-05-05 11:45:53 -0700413
414 struct wireless_dev wdev;
415
Johannes Berg11a843b2007-08-28 17:01:55 -0400416 /* keys */
417 struct list_head key_list;
418
Jiri Bencf0706e822007-05-05 11:45:53 -0700419 struct net_device *dev;
420 struct ieee80211_local *local;
421
Jiri Slaby13262ff2007-08-28 17:01:54 -0400422 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200423
Jiri Bencf0706e822007-05-05 11:45:53 -0700424 int drop_unencrypted;
Jiri Bencf0706e822007-05-05 11:45:53 -0700425
Johannes Berg8318d782008-01-24 19:38:38 +0100426 /*
427 * basic rates of this AP or the AP we're associated to
428 */
429 u64 basic_rates;
430
Jiri Bencf0706e822007-05-05 11:45:53 -0700431 /* Fragment table for host-based reassembly */
432 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
433 unsigned int fragment_next;
434
435#define NUM_DEFAULT_KEYS 4
436 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
437 struct ieee80211_key *default_key;
438
Johannes Berg3e122be2008-07-09 14:40:34 +0200439 /* BSS configuration for this interface. */
Johannes Berg471b3ef2007-12-28 14:32:58 +0100440 struct ieee80211_bss_conf bss_conf;
Johannes Berg3e122be2008-07-09 14:40:34 +0200441
442 /*
443 * AP this belongs to: self in AP mode and
444 * corresponding AP in VLAN mode, NULL for
445 * all others (might be needed later in IBSS)
446 */
447 struct ieee80211_if_ap *bss;
448
449 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
450 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
Jiri Bencf0706e822007-05-05 11:45:53 -0700451
452 union {
453 struct ieee80211_if_ap ap;
454 struct ieee80211_if_wds wds;
455 struct ieee80211_if_vlan vlan;
456 struct ieee80211_if_sta sta;
Michael Wu8cc9a732008-01-31 19:48:23 +0100457 u32 mntr_flags;
Jiri Bencf0706e822007-05-05 11:45:53 -0700458 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700459
460#ifdef CONFIG_MAC80211_DEBUGFS
461 struct dentry *debugfsdir;
462 union {
463 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700464 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700465 struct dentry *state;
466 struct dentry *bssid;
467 struct dentry *prev_bssid;
468 struct dentry *ssid_len;
469 struct dentry *aid;
470 struct dentry *ap_capab;
471 struct dentry *capab;
472 struct dentry *extra_ie_len;
473 struct dentry *auth_tries;
474 struct dentry *assoc_tries;
475 struct dentry *auth_algs;
476 struct dentry *auth_alg;
477 struct dentry *auth_transaction;
478 struct dentry *flags;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100479 struct dentry *num_beacons_sta;
Jiri Bence9f207f2007-05-05 11:46:38 -0700480 } sta;
481 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700482 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700483 struct dentry *num_sta_ps;
Jiri Bence9f207f2007-05-05 11:46:38 -0700484 struct dentry *dtim_count;
485 struct dentry *num_beacons;
486 struct dentry *force_unicast_rateidx;
487 struct dentry *max_ratectrl_rateidx;
488 struct dentry *num_buffered_multicast;
Jiri Bence9f207f2007-05-05 11:46:38 -0700489 } ap;
490 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700491 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700492 struct dentry *peer;
493 } wds;
494 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700495 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700496 } vlan;
497 struct {
498 struct dentry *mode;
499 } monitor;
500 struct dentry *default_key;
501 } debugfs;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100502
503#ifdef CONFIG_MAC80211_MESH
504 struct dentry *mesh_stats_dir;
505 struct {
506 struct dentry *fwded_frames;
507 struct dentry *dropped_frames_ttl;
508 struct dentry *dropped_frames_no_route;
509 struct dentry *estab_plinks;
Johannes Berg902acc72008-02-23 15:17:19 +0100510 struct timer_list mesh_path_timer;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100511 } mesh_stats;
512
513 struct dentry *mesh_config_dir;
514 struct {
515 struct dentry *dot11MeshRetryTimeout;
516 struct dentry *dot11MeshConfirmTimeout;
517 struct dentry *dot11MeshHoldingTimeout;
518 struct dentry *dot11MeshMaxRetries;
519 struct dentry *dot11MeshTTL;
520 struct dentry *auto_open_plinks;
521 struct dentry *dot11MeshMaxPeerLinks;
522 struct dentry *dot11MeshHWMPactivePathTimeout;
523 struct dentry *dot11MeshHWMPpreqMinInterval;
524 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
525 struct dentry *dot11MeshHWMPmaxPREQretries;
526 struct dentry *path_refresh_time;
527 struct dentry *min_discovery_timeout;
528 } mesh_config;
529#endif
530
Jiri Bence9f207f2007-05-05 11:46:38 -0700531#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100532 /* must be last, dynamically sized area in this! */
533 struct ieee80211_vif vif;
Jiri Bencf0706e822007-05-05 11:45:53 -0700534};
535
Johannes Berg32bfd352007-12-19 01:31:26 +0100536static inline
537struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
538{
539 return container_of(p, struct ieee80211_sub_if_data, vif);
540}
541
Jiri Bencf0706e822007-05-05 11:45:53 -0700542enum {
543 IEEE80211_RX_MSG = 1,
544 IEEE80211_TX_STATUS_MSG = 2,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200545 IEEE80211_DELBA_MSG = 3,
546 IEEE80211_ADDBA_MSG = 4,
Jiri Bencf0706e822007-05-05 11:45:53 -0700547};
548
David S. Miller51cb6db2008-07-15 03:34:57 -0700549/* maximum number of hardware queues we support. */
550#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
551
Jiri Bencf0706e822007-05-05 11:45:53 -0700552struct ieee80211_local {
553 /* embed the driver visible part.
554 * don't cast (use the static inlines below), but we keep
555 * it first anyway so they become a no-op */
556 struct ieee80211_hw hw;
557
558 const struct ieee80211_ops *ops;
559
David S. Miller51cb6db2008-07-15 03:34:57 -0700560 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
561
Jiri Bencf0706e822007-05-05 11:45:53 -0700562 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
Jiri Bencf0706e822007-05-05 11:45:53 -0700563 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100564 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100565 /* number of interfaces with corresponding FIF_ flags */
566 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
Johannes Berg4150c572007-09-17 01:29:23 -0400567 unsigned int filter_flags; /* FIF_* */
Jiri Bencf0706e822007-05-05 11:45:53 -0700568 struct iw_statistics wstats;
569 u8 wstats_flags;
Johannes Bergd0709a62008-02-25 16:27:46 +0100570 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Bergb306f452007-07-10 19:32:08 +0200571 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e822007-05-05 11:45:53 -0700572
Jiri Bencf0706e822007-05-05 11:45:53 -0700573 /* Tasklet and skb queue to process calls from IRQ mode. All frames
574 * added to skb_queue will be processed, but frames in
575 * skb_queue_unreliable may be dropped if the total length of these
576 * queues increases over the limit. */
577#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
578 struct tasklet_struct tasklet;
579 struct sk_buff_head skb_queue;
580 struct sk_buff_head skb_queue_unreliable;
581
Johannes Bergd0709a62008-02-25 16:27:46 +0100582 /* Station data */
583 /*
584 * The lock only protects the list, hash, timer and counter
585 * against manipulation, reads are done in RCU. Additionally,
Johannes Bergb16bd152008-04-11 21:40:35 +0200586 * the lock protects each BSS's TIM bitmap.
Johannes Bergd0709a62008-02-25 16:27:46 +0100587 */
588 spinlock_t sta_lock;
589 unsigned long num_sta;
Jiri Bencf0706e822007-05-05 11:45:53 -0700590 struct list_head sta_list;
Johannes Bergdc6676b2008-03-31 19:23:03 +0200591 struct list_head sta_flush_list;
592 struct work_struct sta_flush_work;
Jiri Bencf0706e822007-05-05 11:45:53 -0700593 struct sta_info *sta_hash[STA_HASH_SIZE];
594 struct timer_list sta_cleanup;
595
Johannes Berge2530082008-05-17 00:57:14 +0200596 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Tomas Winklerf8e79dd2008-07-24 18:46:44 +0300597 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Johannes Bergeefce912008-05-17 00:57:13 +0200598 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e822007-05-05 11:45:53 -0700599 struct tasklet_struct tx_pending_tasklet;
600
Johannes Berg53918992007-09-26 15:19:47 +0200601 /* number of interfaces with corresponding IFF_ flags */
602 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e822007-05-05 11:45:53 -0700603
604 struct rate_control_ref *rate_ctrl;
605
Jiri Bencf0706e822007-05-05 11:45:53 -0700606 int rts_threshold;
Jiri Bencf0706e822007-05-05 11:45:53 -0700607 int fragmentation_threshold;
608 int short_retry_limit; /* dot11ShortRetryLimit */
609 int long_retry_limit; /* dot11LongRetryLimit */
Jiri Bencf0706e822007-05-05 11:45:53 -0700610
611 struct crypto_blkcipher *wep_tx_tfm;
612 struct crypto_blkcipher *wep_rx_tfm;
613 u32 wep_iv;
Jiri Bencf0706e822007-05-05 11:45:53 -0700614
615 int bridge_packets; /* bridge packets between associated stations and
616 * deliver multicast frames both back to wireless
617 * media and to the local net stack */
618
Johannes Berg79010422007-09-18 17:29:21 -0400619 struct list_head interfaces;
620
Johannes Bergb16bd152008-04-11 21:40:35 +0200621 /*
622 * Key lock, protects sdata's key_list and sta_info's
623 * key pointers (write access, they're RCU.)
624 */
625 spinlock_t key_lock;
626
627
Zhu Yiece8edd2007-11-22 10:53:21 +0800628 bool sta_sw_scanning;
629 bool sta_hw_scanning;
Jiri Bencf0706e822007-05-05 11:45:53 -0700630 int scan_channel_idx;
Johannes Berg8318d782008-01-24 19:38:38 +0100631 enum ieee80211_band scan_band;
632
Jiri Bencf0706e822007-05-05 11:45:53 -0700633 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
634 unsigned long last_scan_completed;
635 struct delayed_work scan_work;
636 struct net_device *scan_dev;
637 struct ieee80211_channel *oper_channel, *scan_channel;
Jiri Bencf0706e822007-05-05 11:45:53 -0700638 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
639 size_t scan_ssid_len;
640 struct list_head sta_bss_list;
641 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
642 spinlock_t sta_bss_lock;
Jiri Bencf0706e822007-05-05 11:45:53 -0700643
644 /* SNMP counters */
645 /* dot11CountersTable */
646 u32 dot11TransmittedFragmentCount;
647 u32 dot11MulticastTransmittedFrameCount;
648 u32 dot11FailedCount;
649 u32 dot11RetryCount;
650 u32 dot11MultipleRetryCount;
651 u32 dot11FrameDuplicateCount;
652 u32 dot11ReceivedFragmentCount;
653 u32 dot11MulticastReceivedFrameCount;
654 u32 dot11TransmittedFrameCount;
655 u32 dot11WEPUndecryptableCount;
656
657#ifdef CONFIG_MAC80211_LEDS
658 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100659 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
660 char tx_led_name[32], rx_led_name[32],
661 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e822007-05-05 11:45:53 -0700662#endif
663
Jiri Bence9f207f2007-05-05 11:46:38 -0700664#ifdef CONFIG_MAC80211_DEBUGFS
665 struct work_struct sta_debugfs_add;
666#endif
667
Jiri Bencf0706e822007-05-05 11:45:53 -0700668#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
669 /* TX/RX handler statistics */
670 unsigned int tx_handlers_drop;
671 unsigned int tx_handlers_queued;
672 unsigned int tx_handlers_drop_unencrypted;
673 unsigned int tx_handlers_drop_fragment;
674 unsigned int tx_handlers_drop_wep;
675 unsigned int tx_handlers_drop_not_assoc;
676 unsigned int tx_handlers_drop_unauth_port;
677 unsigned int rx_handlers_drop;
678 unsigned int rx_handlers_queued;
679 unsigned int rx_handlers_drop_nullfunc;
680 unsigned int rx_handlers_drop_defrag;
681 unsigned int rx_handlers_drop_short;
682 unsigned int rx_handlers_drop_passive_scan;
683 unsigned int tx_expand_skb_head;
684 unsigned int tx_expand_skb_head_cloned;
685 unsigned int rx_expand_skb_head;
686 unsigned int rx_expand_skb_head2;
687 unsigned int rx_handlers_fragments;
688 unsigned int tx_status_drop;
Jiri Bencf0706e822007-05-05 11:45:53 -0700689#define I802_DEBUG_INC(c) (c)++
690#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
691#define I802_DEBUG_INC(c) do { } while (0)
692#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
693
694
Jiri Bencf0706e822007-05-05 11:45:53 -0700695 int total_ps_buffered; /* total number of all buffered unicast and
696 * multicast packets for power saving stations
697 */
Jiri Bencf0706e822007-05-05 11:45:53 -0700698 int wifi_wme_noack_test;
699 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
700
Jiri Bence9f207f2007-05-05 11:46:38 -0700701#ifdef CONFIG_MAC80211_DEBUGFS
702 struct local_debugfsdentries {
Jiri Bence9f207f2007-05-05 11:46:38 -0700703 struct dentry *frequency;
Jiri Bence9f207f2007-05-05 11:46:38 -0700704 struct dentry *antenna_sel_tx;
705 struct dentry *antenna_sel_rx;
706 struct dentry *bridge_packets;
Jiri Bence9f207f2007-05-05 11:46:38 -0700707 struct dentry *rts_threshold;
708 struct dentry *fragmentation_threshold;
709 struct dentry *short_retry_limit;
710 struct dentry *long_retry_limit;
711 struct dentry *total_ps_buffered;
Jiri Bence9f207f2007-05-05 11:46:38 -0700712 struct dentry *wep_iv;
Jiri Bence9f207f2007-05-05 11:46:38 -0700713 struct dentry *statistics;
714 struct local_debugfsdentries_statsdentries {
715 struct dentry *transmitted_fragment_count;
716 struct dentry *multicast_transmitted_frame_count;
717 struct dentry *failed_count;
718 struct dentry *retry_count;
719 struct dentry *multiple_retry_count;
720 struct dentry *frame_duplicate_count;
721 struct dentry *received_fragment_count;
722 struct dentry *multicast_received_frame_count;
723 struct dentry *transmitted_frame_count;
724 struct dentry *wep_undecryptable_count;
725 struct dentry *num_scans;
726#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
727 struct dentry *tx_handlers_drop;
728 struct dentry *tx_handlers_queued;
729 struct dentry *tx_handlers_drop_unencrypted;
730 struct dentry *tx_handlers_drop_fragment;
731 struct dentry *tx_handlers_drop_wep;
732 struct dentry *tx_handlers_drop_not_assoc;
733 struct dentry *tx_handlers_drop_unauth_port;
734 struct dentry *rx_handlers_drop;
735 struct dentry *rx_handlers_queued;
736 struct dentry *rx_handlers_drop_nullfunc;
737 struct dentry *rx_handlers_drop_defrag;
738 struct dentry *rx_handlers_drop_short;
739 struct dentry *rx_handlers_drop_passive_scan;
740 struct dentry *tx_expand_skb_head;
741 struct dentry *tx_expand_skb_head_cloned;
742 struct dentry *rx_expand_skb_head;
743 struct dentry *rx_expand_skb_head2;
744 struct dentry *rx_handlers_fragments;
745 struct dentry *tx_status_drop;
Jiri Bence9f207f2007-05-05 11:46:38 -0700746#endif
747 struct dentry *dot11ACKFailureCount;
748 struct dentry *dot11RTSFailureCount;
749 struct dentry *dot11FCSErrorCount;
750 struct dentry *dot11RTSSuccessCount;
751 } stats;
752 struct dentry *stations;
753 struct dentry *keys;
754 } debugfs;
755#endif
Jiri Bencf0706e822007-05-05 11:45:53 -0700756};
757
Johannes Berg3e122be2008-07-09 14:40:34 +0200758static inline struct ieee80211_sub_if_data *
759IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
760{
761 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
762
763 BUG_ON(!local || local->mdev == dev);
764
765 return netdev_priv(dev);
766}
767
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200768/* this struct represents 802.11n's RA/TID combination */
769struct ieee80211_ra_tid {
770 u8 ra[ETH_ALEN];
771 u16 tid;
772};
773
Luis Carlos Coboee385852008-02-23 15:17:11 +0100774/* Parsed Information Elements */
775struct ieee802_11_elems {
776 /* pointers to IEs */
777 u8 *ssid;
778 u8 *supp_rates;
779 u8 *fh_params;
780 u8 *ds_params;
781 u8 *cf_params;
782 u8 *tim;
783 u8 *ibss_params;
784 u8 *challenge;
785 u8 *wpa;
786 u8 *rsn;
787 u8 *erp_info;
788 u8 *ext_supp_rates;
789 u8 *wmm_info;
790 u8 *wmm_param;
791 u8 *ht_cap_elem;
792 u8 *ht_info_elem;
793 u8 *mesh_config;
794 u8 *mesh_id;
795 u8 *peer_link;
796 u8 *preq;
797 u8 *prep;
798 u8 *perr;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300799 u8 *ch_switch_elem;
800 u8 *country_elem;
801 u8 *pwr_constr_elem;
802 u8 *quiet_elem; /* first quite element */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100803
804 /* length of them, respectively */
805 u8 ssid_len;
806 u8 supp_rates_len;
807 u8 fh_params_len;
808 u8 ds_params_len;
809 u8 cf_params_len;
810 u8 tim_len;
811 u8 ibss_params_len;
812 u8 challenge_len;
813 u8 wpa_len;
814 u8 rsn_len;
815 u8 erp_info_len;
816 u8 ext_supp_rates_len;
817 u8 wmm_info_len;
818 u8 wmm_param_len;
819 u8 ht_cap_elem_len;
820 u8 ht_info_elem_len;
821 u8 mesh_config_len;
822 u8 mesh_id_len;
823 u8 peer_link_len;
824 u8 preq_len;
825 u8 prep_len;
826 u8 perr_len;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300827 u8 ch_switch_elem_len;
828 u8 country_elem_len;
829 u8 pwr_constr_elem_len;
830 u8 quiet_elem_len;
831 u8 num_of_quiet_elem; /* can be more the one */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100832};
833
Jiri Bencf0706e822007-05-05 11:45:53 -0700834static inline struct ieee80211_local *hw_to_local(
835 struct ieee80211_hw *hw)
836{
837 return container_of(hw, struct ieee80211_local, hw);
838}
839
840static inline struct ieee80211_hw *local_to_hw(
841 struct ieee80211_local *local)
842{
843 return &local->hw;
844}
845
Jiri Bencf0706e822007-05-05 11:45:53 -0700846struct sta_attribute {
847 struct attribute attr;
848 ssize_t (*show)(const struct sta_info *, char *buf);
849 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
850};
851
Johannes Berg571ecf62007-07-27 15:43:22 +0200852static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
853{
854 return compare_ether_addr(raddr, addr) == 0 ||
855 is_broadcast_ether_addr(raddr);
856}
857
858
Jiri Bencf0706e822007-05-05 11:45:53 -0700859/* ieee80211.c */
860int ieee80211_hw_config(struct ieee80211_local *local);
Johannes Berg9d139c82008-07-09 14:40:37 +0200861int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +0100862void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Tomas Winkler38668c02008-03-28 16:33:32 -0700863u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
864 struct ieee80211_ht_info *req_ht_cap,
865 struct ieee80211_ht_bss_info *req_bss_cap);
Jiri Bencf0706e822007-05-05 11:45:53 -0700866
867/* ieee80211_ioctl.c */
868extern const struct iw_handler_def ieee80211_iw_handler_def;
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200869int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
David S. Miller65b53e42008-06-10 02:22:26 -0700870
Jiri Bencf0706e822007-05-05 11:45:53 -0700871/* ieee80211_sta.c */
872void ieee80211_sta_timer(unsigned long data);
873void ieee80211_sta_work(struct work_struct *work);
874void ieee80211_sta_scan_work(struct work_struct *work);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200875void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
Jiri Bencf0706e822007-05-05 11:45:53 -0700876 struct ieee80211_rx_status *rx_status);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200877int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
878int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
879int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
880int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len);
881void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
Jiri Bencf0706e822007-05-05 11:45:53 -0700882 struct ieee80211_if_sta *ifsta);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200883int ieee80211_sta_scan_results(struct ieee80211_local *local,
David S. Millerccc58052008-06-16 18:50:49 -0700884 struct iw_request_info *info,
885 char *buf, size_t len);
Johannes Berg9ae54c82008-01-31 19:48:20 +0100886ieee80211_rx_result ieee80211_sta_rx_scan(
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200887 struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
Johannes Berg9ae54c82008-01-31 19:48:20 +0100888 struct ieee80211_rx_status *rx_status);
Johannes Berg3e122be2008-07-09 14:40:34 +0200889void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
890void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200891int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len);
892struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
Johannes Berg988c0f72008-04-17 19:21:22 +0200893 struct sk_buff *skb, u8 *bssid,
Vladimir Koutny87291c02008-06-13 16:50:44 +0200894 u8 *addr, u64 supp_rates);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200895int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
896int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
Johannes Berg471b3ef2007-12-28 14:32:58 +0100897void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
898 u32 changed);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200899u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
Ron Rindjunskyc7153502007-11-26 16:14:31 +0200900int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
901 struct ieee80211_ht_info *ht_info);
902int ieee80211_ht_addt_info_ie_to_ht_bss_info(
903 struct ieee80211_ht_addt_info *ht_add_info_ie,
904 struct ieee80211_ht_bss_info *bss_info);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200905void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200906 u16 tid, u8 dialog_token, u16 start_seq_num,
907 u16 agg_size, u16 timeout);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200908void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200909 u16 initiator, u16 reason_code);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200910void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
Ron Rindjunsky85249e52008-03-18 15:00:32 -0700911
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200912void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
Ron Rindjunsky07db2182007-12-25 17:00:33 +0200913 u16 tid, u16 initiator, u16 reason);
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200914void sta_addba_resp_timer_expired(unsigned long data);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200915void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
Luis Carlos Coboee385852008-02-23 15:17:11 +0100916u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
917 struct ieee802_11_elems *elems,
918 enum ieee80211_band band);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200919void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
Luis Carlos Coboee385852008-02-23 15:17:11 +0100920 int encrypt);
921void ieee802_11_parse_elems(u8 *start, size_t len,
922 struct ieee802_11_elems *elems);
923
Johannes Berg902acc72008-02-23 15:17:19 +0100924#ifdef CONFIG_MAC80211_MESH
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200925void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
Johannes Berg902acc72008-02-23 15:17:19 +0100926#else
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200927static inline void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
Johannes Berg902acc72008-02-23 15:17:19 +0100928{}
929#endif
Luis Carlos Coboee385852008-02-23 15:17:11 +0100930
Johannes Berg3e122be2008-07-09 14:40:34 +0200931/* interface handling */
Johannes Berg75636522008-07-09 14:40:35 +0200932void ieee80211_if_setup(struct net_device *dev);
Johannes Berg3e122be2008-07-09 14:40:34 +0200933int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg75636522008-07-09 14:40:35 +0200934 struct net_device **new_dev, enum ieee80211_if_types type,
Luis Carlos Coboee385852008-02-23 15:17:11 +0100935 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +0200936int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
937 enum ieee80211_if_types type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200938void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +0200939void ieee80211_remove_interfaces(struct ieee80211_local *local);
Jiri Bencf0706e822007-05-05 11:45:53 -0700940
Johannes Berge2ebc742007-07-27 15:43:22 +0200941/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +0200942void ieee80211_clear_tx_pending(struct ieee80211_local *local);
943void ieee80211_tx_pending(unsigned long data);
944int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
945int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
946int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +0200947
Johannes Bergc2d15602007-07-27 15:43:23 +0200948/* utility functions/constants */
949extern void *mac80211_wiphy_privid; /* for wiphy privid */
950extern const unsigned char rfc1042_header[6];
951extern const unsigned char bridge_tunnel_header[6];
Ron Rindjunsky71364712007-12-25 17:00:36 +0200952u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
953 enum ieee80211_if_types type);
Johannes Bergc2d15602007-07-27 15:43:23 +0200954int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
955 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200956void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Bergeb063c12007-08-28 17:01:53 -0400957 struct ieee80211_hdr *hdr);
Jiri Bencf0706e822007-05-05 11:45:53 -0700958
Johannes Bergf4ea83d2008-06-30 15:10:46 +0200959#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +0200960#define debug_noinline noinline
961#else
962#define debug_noinline
963#endif
964
Jiri Bencf0706e822007-05-05 11:45:53 -0700965#endif /* IEEE80211_I_H */