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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
Johannes Berg9cfb0002008-04-03 15:17:31 +020032struct ieee80211_local;
Jiri Bencf0706e822007-05-05 11:45:53 -070033
34/* Maximum number of broadcast/multicast frames to buffer when some of the
35 * associated stations are using power saving. */
36#define AP_MAX_BC_BUFFER 128
37
38/* Maximum number of frames buffered to all STAs, including multicast frames.
39 * Note: increasing this limit increases the potential memory requirement. Each
40 * frame can be up to about 2 kB long. */
41#define TOTAL_MAX_TX_BUFFER 512
42
43/* Required encryption head and tailroom */
44#define IEEE80211_ENCRYPT_HEADROOM 8
45#define IEEE80211_ENCRYPT_TAILROOM 12
46
47/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
48 * reception of at least three fragmented frames. This limit can be increased
49 * by changing this define, at the cost of slower frame reassembly and
50 * increased memory use (about 2 kB of RAM per entry). */
51#define IEEE80211_FRAGMENT_MAX 4
52
Johannes Berg0a51b272008-09-08 17:44:25 +020053/*
54 * Time after which we ignore scan results and no longer report/use
55 * them in any way.
56 */
57#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
58
Jiri Bencf0706e822007-05-05 11:45:53 -070059struct ieee80211_fragment_entry {
60 unsigned long first_frag_time;
61 unsigned int seq;
62 unsigned int rx_queue;
63 unsigned int last_frag;
64 unsigned int extra_len;
65 struct sk_buff_head skb_list;
66 int ccmp; /* Whether fragments were encrypted with CCMP */
67 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
68};
69
70
Johannes Bergc2b13452008-09-11 00:01:55 +020071struct ieee80211_bss {
Jiri Bencf0706e822007-05-05 11:45:53 -070072 struct list_head list;
Johannes Bergc2b13452008-09-11 00:01:55 +020073 struct ieee80211_bss *hnext;
Johannes Berg056cdd52008-03-26 23:21:47 +010074 size_t ssid_len;
75
Jiri Bencf0706e822007-05-05 11:45:53 -070076 atomic_t users;
77
78 u8 bssid[ETH_ALEN];
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +080080 u8 dtim_period;
Jiri Bencf0706e822007-05-05 11:45:53 -070081 u16 capability; /* host byte order */
Johannes Berg8318d782008-01-24 19:38:38 +010082 enum ieee80211_band band;
Jiri Bencf0706e822007-05-05 11:45:53 -070083 int freq;
Bruno Randolf566bfe52008-05-08 19:15:40 +020084 int signal, noise, qual;
Jouni Malinen43ac2ca2008-08-15 22:21:27 +030085 u8 *ies; /* all information elements from the last Beacon or Probe
86 * Response frames; note Beacon frame is not allowed to
87 * override values from Probe Response */
88 size_t ies_len;
89 bool wmm_used;
Luis Carlos Coboee385852008-02-23 15:17:11 +010090#ifdef CONFIG_MAC80211_MESH
91 u8 *mesh_id;
92 size_t mesh_id_len;
John W. Linville24736702008-04-08 14:15:46 -040093 u8 *mesh_cfg;
Johannes Berg902acc72008-02-23 15:17:19 +010094#endif
Jiri Bencf0706e822007-05-05 11:45:53 -070095#define IEEE80211_MAX_SUPP_RATES 32
96 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
97 size_t supp_rates_len;
Jiri Bencf0706e822007-05-05 11:45:53 -070098 u64 timestamp;
Johannes Berg056cdd52008-03-26 23:21:47 +010099 int beacon_int;
Jiri Bencf0706e822007-05-05 11:45:53 -0700100
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300101 unsigned long last_probe_resp;
Jiri Bencf0706e822007-05-05 11:45:53 -0700102 unsigned long last_update;
103
Daniel Drake56282212007-07-10 19:32:10 +0200104 /* during assocation, we save an ERP value from a probe response so
105 * that we can feed ERP info to the driver when handling the
106 * association completes. these fields probably won't be up-to-date
107 * otherwise, you probably don't want to use them. */
108 int has_erp_value;
109 u8 erp_value;
Jiri Bencf0706e822007-05-05 11:45:53 -0700110};
111
Johannes Bergc2b13452008-09-11 00:01:55 +0200112static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100113{
114#ifdef CONFIG_MAC80211_MESH
115 return bss->mesh_cfg;
116#endif
117 return NULL;
118}
119
Johannes Bergc2b13452008-09-11 00:01:55 +0200120static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100121{
122#ifdef CONFIG_MAC80211_MESH
123 return bss->mesh_id;
124#endif
125 return NULL;
126}
127
Johannes Bergc2b13452008-09-11 00:01:55 +0200128static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg902acc72008-02-23 15:17:19 +0100129{
130#ifdef CONFIG_MAC80211_MESH
131 return bss->mesh_id_len;
132#endif
133 return 0;
134}
135
Jiri Bencf0706e822007-05-05 11:45:53 -0700136
Johannes Berg9ae54c82008-01-31 19:48:20 +0100137typedef unsigned __bitwise__ ieee80211_tx_result;
138#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
139#define TX_DROP ((__force ieee80211_tx_result) 1u)
140#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
141
Johannes Berg5cf121c2008-02-25 16:27:43 +0100142#define IEEE80211_TX_FRAGMENTED BIT(0)
143#define IEEE80211_TX_UNICAST BIT(1)
144#define IEEE80211_TX_PS_BUFFERED BIT(2)
145#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
Johannes Berg9ae54c82008-01-31 19:48:20 +0100146
Johannes Berg5cf121c2008-02-25 16:27:43 +0100147struct ieee80211_tx_data {
Jiri Bencf0706e822007-05-05 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 Bencf0706e822007-05-05 11:45:53 -0700153 struct ieee80211_key *key;
Jiri Bencf0706e822007-05-05 11:45:53 -0700154
Johannes Berg5cf121c2008-02-25 16:27:43 +0100155 struct ieee80211_channel *channel;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200156 s8 rate_idx;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100157 /* use this rate (if set) for last fragment; rate can
158 * be set to lower rate for the first fragments, e.g.,
159 * when using CTS protection with IEEE 802.11g. */
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200160 s8 last_frag_rate_idx;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100161
162 /* Extra fragments (in addition to the first fragment
163 * in skb) */
Johannes Berg5cf121c2008-02-25 16:27:43 +0100164 struct sk_buff **extra_frag;
Johannes Berg056cdd52008-03-26 23:21:47 +0100165 int num_extra_frag;
166
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700167 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100168 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100169};
170
171
172typedef unsigned __bitwise__ ieee80211_rx_result;
173#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
174#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
175#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
176#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
177
178#define IEEE80211_RX_IN_SCAN BIT(0)
179/* frame is destined to interface currently processed (incl. multicast frames) */
180#define IEEE80211_RX_RA_MATCH BIT(1)
181#define IEEE80211_RX_AMSDU BIT(2)
182#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
183#define IEEE80211_RX_FRAGMENTED BIT(4)
184
185struct ieee80211_rx_data {
186 struct sk_buff *skb;
187 struct net_device *dev;
188 struct ieee80211_local *local;
189 struct ieee80211_sub_if_data *sdata;
190 struct sta_info *sta;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100191 struct ieee80211_key *key;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100192 struct ieee80211_rx_status *status;
193 struct ieee80211_rate *rate;
Johannes Berg056cdd52008-03-26 23:21:47 +0100194
Harvey Harrisona4b7d7b2008-07-15 18:44:14 -0700195 u16 ethertype;
Johannes Berg056cdd52008-03-26 23:21:47 +0100196 unsigned int flags;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100197 int sent_ps_buffered;
198 int queue;
Johannes Berg5cf121c2008-02-25 16:27:43 +0100199 u32 tkip_iv32;
200 u16 tkip_iv16;
Jiri Bencf0706e822007-05-05 11:45:53 -0700201};
202
Jiri Bencf0706e822007-05-05 11:45:53 -0700203struct ieee80211_tx_stored_packet {
Jiri Bencf0706e822007-05-05 11:45:53 -0700204 struct sk_buff *skb;
Jiri Bencf0706e822007-05-05 11:45:53 -0700205 struct sk_buff **extra_frag;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200206 s8 last_frag_rate_idx;
Johannes Berg056cdd52008-03-26 23:21:47 +0100207 int num_extra_frag;
Johannes Berg2e92e6f2008-05-15 12:55:27 +0200208 bool last_frag_rate_ctrl_probe;
Jiri Bencf0706e822007-05-05 11:45:53 -0700209};
210
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100211struct beacon_data {
212 u8 *head, *tail;
213 int head_len, tail_len;
214 int dtim_period;
215};
216
Jiri Bencf0706e822007-05-05 11:45:53 -0700217struct ieee80211_if_ap {
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100218 struct beacon_data *beacon;
Jiri Bencf0706e822007-05-05 11:45:53 -0700219
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400220 struct list_head vlans;
221
Jiri Bencf0706e822007-05-05 11:45:53 -0700222 u8 ssid[IEEE80211_MAX_SSID_LEN];
223 size_t ssid_len;
Jiri Bencf0706e822007-05-05 11:45:53 -0700224
225 /* yes, this looks ugly, but guarantees that we can later use
226 * bitmap_empty :)
Johannes Berg004c8722008-02-20 11:21:35 +0100227 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
Jiri Bencf0706e822007-05-05 11:45:53 -0700228 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
Jiri Bencf0706e822007-05-05 11:45:53 -0700229 struct sk_buff_head ps_bc_buf;
Johannes Berg056cdd52008-03-26 23:21:47 +0100230 atomic_t num_sta_ps; /* number of stations in PS mode */
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100231 int dtim_count;
Jiri Bencf0706e822007-05-05 11:45:53 -0700232};
233
234struct ieee80211_if_wds {
Jiri Bencf0706e822007-05-05 11:45:53 -0700235 struct sta_info *sta;
Johannes Berg056cdd52008-03-26 23:21:47 +0100236 u8 remote_addr[ETH_ALEN];
Jiri Bencf0706e822007-05-05 11:45:53 -0700237};
238
239struct ieee80211_if_vlan {
Johannes Berg0ec3ca42007-09-17 01:29:24 -0400240 struct list_head list;
Jiri Bencf0706e822007-05-05 11:45:53 -0700241};
242
Luis Carlos Coboee385852008-02-23 15:17:11 +0100243struct mesh_stats {
244 __u32 fwded_frames; /* Mesh forwarded frames */
245 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
246 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
247 atomic_t estab_plinks;
248};
249
250#define PREQ_Q_F_START 0x1
251#define PREQ_Q_F_REFRESH 0x2
252struct mesh_preq_queue {
253 struct list_head list;
254 u8 dst[ETH_ALEN];
255 u8 flags;
256};
257
Luis Carlos Coboee385852008-02-23 15:17:11 +0100258struct mesh_config {
259 /* Timeouts in ms */
260 /* Mesh plink management parameters */
261 u16 dot11MeshRetryTimeout;
262 u16 dot11MeshConfirmTimeout;
263 u16 dot11MeshHoldingTimeout;
264 u16 dot11MeshMaxPeerLinks;
265 u8 dot11MeshMaxRetries;
266 u8 dot11MeshTTL;
267 bool auto_open_plinks;
268 /* HWMP parameters */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100269 u8 dot11MeshHWMPmaxPREQretries;
270 u32 path_refresh_time;
271 u16 min_discovery_timeout;
Johannes Berg056cdd52008-03-26 23:21:47 +0100272 u32 dot11MeshHWMPactivePathTimeout;
273 u16 dot11MeshHWMPpreqMinInterval;
274 u16 dot11MeshHWMPnetDiameterTraversalTime;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100275};
Johannes Berg902acc72008-02-23 15:17:19 +0100276
Luis Carlos Coboee385852008-02-23 15:17:11 +0100277
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400278/* flags used in struct ieee80211_if_sta.flags */
279#define IEEE80211_STA_SSID_SET BIT(0)
280#define IEEE80211_STA_BSSID_SET BIT(1)
281#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
282#define IEEE80211_STA_AUTHENTICATED BIT(3)
283#define IEEE80211_STA_ASSOCIATED BIT(4)
284#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
285#define IEEE80211_STA_CREATE_IBSS BIT(6)
286#define IEEE80211_STA_MIXED_CELL BIT(7)
287#define IEEE80211_STA_WMM_ENABLED BIT(8)
288#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
289#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
290#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
Johannes Berg5b98b1f2007-11-03 13:11:10 +0000291#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
Johannes Bergccd7b362008-09-11 00:01:56 +0200292/* flags for MLME request */
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300293#define IEEE80211_STA_REQ_SCAN 0
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300294#define IEEE80211_STA_REQ_DIRECT_PROBE 1
295#define IEEE80211_STA_REQ_AUTH 2
296#define IEEE80211_STA_REQ_RUN 3
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300297
Johannes Bergccd7b362008-09-11 00:01:56 +0200298/* STA/IBSS MLME states */
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300299enum ieee80211_sta_mlme_state {
300 IEEE80211_STA_MLME_DISABLED,
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300301 IEEE80211_STA_MLME_DIRECT_PROBE,
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300302 IEEE80211_STA_MLME_AUTHENTICATE,
303 IEEE80211_STA_MLME_ASSOCIATE,
304 IEEE80211_STA_MLME_ASSOCIATED,
305 IEEE80211_STA_MLME_IBSS_SEARCH,
306 IEEE80211_STA_MLME_IBSS_JOINED,
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300307};
308
309/* bitfield of allowed auth algs */
310#define IEEE80211_AUTH_ALG_OPEN BIT(0)
311#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
312#define IEEE80211_AUTH_ALG_LEAP BIT(2)
313
Jiri Bencf0706e822007-05-05 11:45:53 -0700314struct ieee80211_if_sta {
Johannes Berg056cdd52008-03-26 23:21:47 +0100315 struct timer_list timer;
316 struct work_struct work;
317 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
318 u8 ssid[IEEE80211_MAX_SSID_LEN];
Tomas Winkler48c2fc52008-08-06 14:22:01 +0300319 enum ieee80211_sta_mlme_state state;
Jiri Bencf0706e822007-05-05 11:45:53 -0700320 size_t ssid_len;
Helmut Schaaa0af5f12007-11-09 16:25:08 +0100321 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
322 size_t scan_ssid_len;
Jiri Bencf0706e822007-05-05 11:45:53 -0700323 u16 aid;
324 u16 ap_capab, capab;
325 u8 *extra_ie; /* to be added to the end of AssocReq */
326 size_t extra_ie_len;
327
328 /* The last AssocReq/Resp IEs */
329 u8 *assocreq_ies, *assocresp_ies;
330 size_t assocreq_ies_len, assocresp_ies_len;
331
Johannes Berg056cdd52008-03-26 23:21:47 +0100332 struct sk_buff_head skb_queue;
333
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300334 int assoc_scan_tries; /* number of scans done pre-association */
Ron Rindjunsky9859b812008-08-09 03:02:19 +0300335 int direct_probe_tries; /* retries for direct probes */
Ron Rindjunsky6042a3e2008-08-08 01:50:46 +0300336 int auth_tries; /* retries for auth req */
337 int assoc_tries; /* retries for assoc req */
Jiri Bencf0706e822007-05-05 11:45:53 -0700338
Johannes Berg056cdd52008-03-26 23:21:47 +0100339 unsigned long request;
340
341 unsigned long last_probe;
342
Jiri Slabyd6f2da52007-08-28 17:01:54 -0400343 unsigned int flags;
Jiri Bencf0706e822007-05-05 11:45:53 -0700344
Jiri Bencf0706e822007-05-05 11:45:53 -0700345 unsigned int auth_algs; /* bitfield of allowed auth algs */
346 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
347 int auth_transaction;
348
349 unsigned long ibss_join_req;
350 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
Johannes Berg8318d782008-01-24 19:38:38 +0100351 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
Jiri Bencf0706e822007-05-05 11:45:53 -0700352
353 int wmm_last_param_set;
354};
355
Johannes Berg472dbc42008-09-11 00:01:49 +0200356struct ieee80211_if_mesh {
357 struct work_struct work;
358 struct timer_list housekeeping_timer;
359 struct timer_list mesh_path_timer;
360 struct sk_buff_head skb_queue;
361
362 bool housekeeping;
363
364 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
365 size_t mesh_id_len;
366 /* Active Path Selection Protocol Identifier */
367 u8 mesh_pp_id[4];
368 /* Active Path Selection Metric Identifier */
369 u8 mesh_pm_id[4];
370 /* Congestion Control Mode Identifier */
371 u8 mesh_cc_id[4];
372 /* Local mesh Destination Sequence Number */
373 u32 dsn;
374 /* Last used PREQ ID */
375 u32 preq_id;
376 atomic_t mpaths;
377 /* Timestamp of last DSN update */
378 unsigned long last_dsn_update;
379 /* Timestamp of last DSN sent */
380 unsigned long last_preq;
381 struct mesh_rmc *rmc;
382 spinlock_t mesh_preq_queue_lock;
383 struct mesh_preq_queue preq_queue;
384 int preq_queue_len;
385 struct mesh_stats mshstats;
386 struct mesh_config mshcfg;
387 u32 mesh_seqnum;
388 bool accepting_plinks;
Johannes Berg472dbc42008-09-11 00:01:49 +0200389};
Johannes Berg902acc72008-02-23 15:17:19 +0100390
391#ifdef CONFIG_MAC80211_MESH
Johannes Berg472dbc42008-09-11 00:01:49 +0200392#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
393 do { (msh)->mshstats.name++; } while (0)
Johannes Berg902acc72008-02-23 15:17:19 +0100394#else
Johannes Berg472dbc42008-09-11 00:01:49 +0200395#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg902acc72008-02-23 15:17:19 +0100396 do { } while (0)
397#endif
Jiri Bencf0706e822007-05-05 11:45:53 -0700398
Johannes Berg213cd112008-09-11 00:01:54 +0200399/**
400 * enum ieee80211_sub_if_data_flags - virtual interface flags
401 *
402 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
403 * @IEEE80211_SDATA_PROMISC: interface is promisc
404 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
405 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
406 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
407 * associated stations and deliver multicast frames both
408 * back to wireless media and to the local net stack.
409 */
410enum ieee80211_sub_if_data_flags {
411 IEEE80211_SDATA_ALLMULTI = BIT(0),
412 IEEE80211_SDATA_PROMISC = BIT(1),
413 IEEE80211_SDATA_USERSPACE_MLME = BIT(2),
414 IEEE80211_SDATA_OPERATING_GMODE = BIT(3),
415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4),
416};
417
Jiri Bencf0706e822007-05-05 11:45:53 -0700418struct ieee80211_sub_if_data {
419 struct list_head list;
Jiri Bencf0706e822007-05-05 11:45:53 -0700420
421 struct wireless_dev wdev;
422
Johannes Berg11a843b2007-08-28 17:01:55 -0400423 /* keys */
424 struct list_head key_list;
425
Jiri Bencf0706e822007-05-05 11:45:53 -0700426 struct net_device *dev;
427 struct ieee80211_local *local;
428
Jiri Slaby13262ff2007-08-28 17:01:54 -0400429 unsigned int flags;
Daniel Drake7e9ed182007-07-27 15:43:24 +0200430
Jiri Bencf0706e822007-05-05 11:45:53 -0700431 int drop_unencrypted;
Jiri Bencf0706e822007-05-05 11:45:53 -0700432
Jiri Bencf0706e822007-05-05 11:45:53 -0700433 /* Fragment table for host-based reassembly */
434 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
435 unsigned int fragment_next;
436
437#define NUM_DEFAULT_KEYS 4
438 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
439 struct ieee80211_key *default_key;
440
Johannes Berg94778282008-10-10 13:21:59 +0200441 u16 sequence_number;
442
Johannes Berg3e122be2008-07-09 14:40:34 +0200443 /*
444 * AP this belongs to: self in AP mode and
445 * corresponding AP in VLAN mode, NULL for
446 * all others (might be needed later in IBSS)
447 */
448 struct ieee80211_if_ap *bss;
449
450 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
451 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
Jiri Bencf0706e822007-05-05 11:45:53 -0700452
453 union {
454 struct ieee80211_if_ap ap;
455 struct ieee80211_if_wds wds;
456 struct ieee80211_if_vlan vlan;
457 struct ieee80211_if_sta sta;
Johannes Berg472dbc42008-09-11 00:01:49 +0200458#ifdef CONFIG_MAC80211_MESH
459 struct ieee80211_if_mesh mesh;
460#endif
Michael Wu8cc9a732008-01-31 19:48:23 +0100461 u32 mntr_flags;
Jiri Bencf0706e822007-05-05 11:45:53 -0700462 } u;
Jiri Bence9f207f2007-05-05 11:46:38 -0700463
464#ifdef CONFIG_MAC80211_DEBUGFS
465 struct dentry *debugfsdir;
466 union {
467 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700468 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700469 struct dentry *state;
470 struct dentry *bssid;
471 struct dentry *prev_bssid;
472 struct dentry *ssid_len;
473 struct dentry *aid;
474 struct dentry *ap_capab;
475 struct dentry *capab;
476 struct dentry *extra_ie_len;
477 struct dentry *auth_tries;
478 struct dentry *assoc_tries;
479 struct dentry *auth_algs;
480 struct dentry *auth_alg;
481 struct dentry *auth_transaction;
482 struct dentry *flags;
Jouni Malinen93015f02008-08-25 11:57:06 +0300483 struct dentry *force_unicast_rateidx;
484 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700485 } sta;
486 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700487 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700488 struct dentry *num_sta_ps;
Jiri Bence9f207f2007-05-05 11:46:38 -0700489 struct dentry *dtim_count;
Jiri Bence9f207f2007-05-05 11:46:38 -0700490 struct dentry *force_unicast_rateidx;
491 struct dentry *max_ratectrl_rateidx;
492 struct dentry *num_buffered_multicast;
Jiri Bence9f207f2007-05-05 11:46:38 -0700493 } ap;
494 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700495 struct dentry *drop_unencrypted;
Jiri Bence9f207f2007-05-05 11:46:38 -0700496 struct dentry *peer;
Jouni Malinen93015f02008-08-25 11:57:06 +0300497 struct dentry *force_unicast_rateidx;
498 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700499 } wds;
500 struct {
Jiri Bence9f207f2007-05-05 11:46:38 -0700501 struct dentry *drop_unencrypted;
Jouni Malinen93015f02008-08-25 11:57:06 +0300502 struct dentry *force_unicast_rateidx;
503 struct dentry *max_ratectrl_rateidx;
Jiri Bence9f207f2007-05-05 11:46:38 -0700504 } vlan;
505 struct {
506 struct dentry *mode;
507 } monitor;
Jiri Bence9f207f2007-05-05 11:46:38 -0700508 } debugfs;
Jouni Malinen2b58b202008-08-28 15:12:06 +0300509 struct {
510 struct dentry *default_key;
511 } common_debugfs;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100512
513#ifdef CONFIG_MAC80211_MESH
514 struct dentry *mesh_stats_dir;
515 struct {
516 struct dentry *fwded_frames;
517 struct dentry *dropped_frames_ttl;
518 struct dentry *dropped_frames_no_route;
519 struct dentry *estab_plinks;
Johannes Berg902acc72008-02-23 15:17:19 +0100520 struct timer_list mesh_path_timer;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100521 } mesh_stats;
522
523 struct dentry *mesh_config_dir;
524 struct {
525 struct dentry *dot11MeshRetryTimeout;
526 struct dentry *dot11MeshConfirmTimeout;
527 struct dentry *dot11MeshHoldingTimeout;
528 struct dentry *dot11MeshMaxRetries;
529 struct dentry *dot11MeshTTL;
530 struct dentry *auto_open_plinks;
531 struct dentry *dot11MeshMaxPeerLinks;
532 struct dentry *dot11MeshHWMPactivePathTimeout;
533 struct dentry *dot11MeshHWMPpreqMinInterval;
534 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
535 struct dentry *dot11MeshHWMPmaxPREQretries;
536 struct dentry *path_refresh_time;
537 struct dentry *min_discovery_timeout;
538 } mesh_config;
539#endif
540
Jiri Bence9f207f2007-05-05 11:46:38 -0700541#endif
Johannes Berg32bfd352007-12-19 01:31:26 +0100542 /* must be last, dynamically sized area in this! */
543 struct ieee80211_vif vif;
Jiri Bencf0706e822007-05-05 11:45:53 -0700544};
545
Johannes Berg32bfd352007-12-19 01:31:26 +0100546static inline
547struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
548{
549 return container_of(p, struct ieee80211_sub_if_data, vif);
550}
551
Johannes Berg472dbc42008-09-11 00:01:49 +0200552static inline void
553ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
554 u8 mesh_id_len, u8 *mesh_id)
555{
556#ifdef CONFIG_MAC80211_MESH
557 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
558 ifmsh->mesh_id_len = mesh_id_len;
559 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
560#else
561 WARN_ON(1);
562#endif
563}
564
Jiri Bencf0706e822007-05-05 11:45:53 -0700565enum {
566 IEEE80211_RX_MSG = 1,
567 IEEE80211_TX_STATUS_MSG = 2,
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200568 IEEE80211_DELBA_MSG = 3,
569 IEEE80211_ADDBA_MSG = 4,
Jiri Bencf0706e822007-05-05 11:45:53 -0700570};
571
David S. Miller51cb6db2008-07-15 03:34:57 -0700572/* maximum number of hardware queues we support. */
573#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
574
Johannes Berg133b8222008-09-16 14:18:59 +0200575struct ieee80211_master_priv {
576 struct ieee80211_local *local;
577};
578
Jiri Bencf0706e822007-05-05 11:45:53 -0700579struct ieee80211_local {
580 /* embed the driver visible part.
581 * don't cast (use the static inlines below), but we keep
582 * it first anyway so they become a no-op */
583 struct ieee80211_hw hw;
584
585 const struct ieee80211_ops *ops;
586
David S. Miller51cb6db2008-07-15 03:34:57 -0700587 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
588
Jiri Bencf0706e822007-05-05 11:45:53 -0700589 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
Jiri Bencf0706e822007-05-05 11:45:53 -0700590 int open_count;
Michael Wu3d30d942008-01-31 19:48:27 +0100591 int monitors, cooked_mntrs;
Michael Wu8cc9a732008-01-31 19:48:23 +0100592 /* number of interfaces with corresponding FIF_ flags */
593 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
Johannes Berg4150c572007-09-17 01:29:23 -0400594 unsigned int filter_flags; /* FIF_* */
Jiri Bencf0706e822007-05-05 11:45:53 -0700595 struct iw_statistics wstats;
596 u8 wstats_flags;
Johannes Bergd0709a62008-02-25 16:27:46 +0100597 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
Johannes Bergb306f452007-07-10 19:32:08 +0200598 int tx_headroom; /* required headroom for hardware/radiotap */
Jiri Bencf0706e822007-05-05 11:45:53 -0700599
Jiri Bencf0706e822007-05-05 11:45:53 -0700600 /* Tasklet and skb queue to process calls from IRQ mode. All frames
601 * added to skb_queue will be processed, but frames in
602 * skb_queue_unreliable may be dropped if the total length of these
603 * queues increases over the limit. */
604#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
605 struct tasklet_struct tasklet;
606 struct sk_buff_head skb_queue;
607 struct sk_buff_head skb_queue_unreliable;
608
Johannes Bergd0709a62008-02-25 16:27:46 +0100609 /* Station data */
610 /*
611 * The lock only protects the list, hash, timer and counter
612 * against manipulation, reads are done in RCU. Additionally,
Johannes Bergb16bd152008-04-11 21:40:35 +0200613 * the lock protects each BSS's TIM bitmap.
Johannes Bergd0709a62008-02-25 16:27:46 +0100614 */
615 spinlock_t sta_lock;
616 unsigned long num_sta;
Jiri Bencf0706e822007-05-05 11:45:53 -0700617 struct list_head sta_list;
Johannes Bergdc6676b2008-03-31 19:23:03 +0200618 struct list_head sta_flush_list;
619 struct work_struct sta_flush_work;
Jiri Bencf0706e822007-05-05 11:45:53 -0700620 struct sta_info *sta_hash[STA_HASH_SIZE];
621 struct timer_list sta_cleanup;
622
Johannes Berge2530082008-05-17 00:57:14 +0200623 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Tomas Winklerf8e79dd2008-07-24 18:46:44 +0300624 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
Johannes Bergeefce912008-05-17 00:57:13 +0200625 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
Jiri Bencf0706e822007-05-05 11:45:53 -0700626 struct tasklet_struct tx_pending_tasklet;
627
Johannes Berg53918992007-09-26 15:19:47 +0200628 /* number of interfaces with corresponding IFF_ flags */
629 atomic_t iff_allmultis, iff_promiscs;
Jiri Bencf0706e822007-05-05 11:45:53 -0700630
631 struct rate_control_ref *rate_ctrl;
632
Jiri Bencf0706e822007-05-05 11:45:53 -0700633 int rts_threshold;
Jiri Bencf0706e822007-05-05 11:45:53 -0700634 int fragmentation_threshold;
Jiri Bencf0706e822007-05-05 11:45:53 -0700635
636 struct crypto_blkcipher *wep_tx_tfm;
637 struct crypto_blkcipher *wep_rx_tfm;
638 u32 wep_iv;
Jiri Bencf0706e822007-05-05 11:45:53 -0700639
Johannes Berg79010422007-09-18 17:29:21 -0400640 struct list_head interfaces;
641
Johannes Bergb16bd152008-04-11 21:40:35 +0200642 /*
643 * Key lock, protects sdata's key_list and sta_info's
644 * key pointers (write access, they're RCU.)
645 */
646 spinlock_t key_lock;
647
648
Johannes Bergc2b13452008-09-11 00:01:55 +0200649 /* Scanning and BSS list */
650 bool sw_scanning, hw_scanning;
Jiri Bencf0706e822007-05-05 11:45:53 -0700651 int scan_channel_idx;
Johannes Berg8318d782008-01-24 19:38:38 +0100652 enum ieee80211_band scan_band;
653
Jiri Bencf0706e822007-05-05 11:45:53 -0700654 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
655 unsigned long last_scan_completed;
656 struct delayed_work scan_work;
Johannes Berg491775a2008-09-08 17:44:23 +0200657 struct ieee80211_sub_if_data *scan_sdata;
Jiri Bencf0706e822007-05-05 11:45:53 -0700658 struct ieee80211_channel *oper_channel, *scan_channel;
Jiri Bencf0706e822007-05-05 11:45:53 -0700659 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
660 size_t scan_ssid_len;
Johannes Bergc2b13452008-09-11 00:01:55 +0200661 struct list_head bss_list;
662 struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
663 spinlock_t bss_lock;
Jiri Bencf0706e822007-05-05 11:45:53 -0700664
665 /* SNMP counters */
666 /* dot11CountersTable */
667 u32 dot11TransmittedFragmentCount;
668 u32 dot11MulticastTransmittedFrameCount;
669 u32 dot11FailedCount;
670 u32 dot11RetryCount;
671 u32 dot11MultipleRetryCount;
672 u32 dot11FrameDuplicateCount;
673 u32 dot11ReceivedFragmentCount;
674 u32 dot11MulticastReceivedFrameCount;
675 u32 dot11TransmittedFrameCount;
676 u32 dot11WEPUndecryptableCount;
677
678#ifdef CONFIG_MAC80211_LEDS
679 int tx_led_counter, rx_led_counter;
Ivo van Doorncdcb0062008-01-07 19:45:24 +0100680 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
681 char tx_led_name[32], rx_led_name[32],
682 assoc_led_name[32], radio_led_name[32];
Jiri Bencf0706e822007-05-05 11:45:53 -0700683#endif
684
Jiri Bence9f207f2007-05-05 11:46:38 -0700685#ifdef CONFIG_MAC80211_DEBUGFS
686 struct work_struct sta_debugfs_add;
687#endif
688
Jiri Bencf0706e822007-05-05 11:45:53 -0700689#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
690 /* TX/RX handler statistics */
691 unsigned int tx_handlers_drop;
692 unsigned int tx_handlers_queued;
693 unsigned int tx_handlers_drop_unencrypted;
694 unsigned int tx_handlers_drop_fragment;
695 unsigned int tx_handlers_drop_wep;
696 unsigned int tx_handlers_drop_not_assoc;
697 unsigned int tx_handlers_drop_unauth_port;
698 unsigned int rx_handlers_drop;
699 unsigned int rx_handlers_queued;
700 unsigned int rx_handlers_drop_nullfunc;
701 unsigned int rx_handlers_drop_defrag;
702 unsigned int rx_handlers_drop_short;
703 unsigned int rx_handlers_drop_passive_scan;
704 unsigned int tx_expand_skb_head;
705 unsigned int tx_expand_skb_head_cloned;
706 unsigned int rx_expand_skb_head;
707 unsigned int rx_expand_skb_head2;
708 unsigned int rx_handlers_fragments;
709 unsigned int tx_status_drop;
Jiri Bencf0706e822007-05-05 11:45:53 -0700710#define I802_DEBUG_INC(c) (c)++
711#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
712#define I802_DEBUG_INC(c) do { } while (0)
713#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
714
715
Jiri Bencf0706e822007-05-05 11:45:53 -0700716 int total_ps_buffered; /* total number of all buffered unicast and
717 * multicast packets for power saving stations
718 */
Jiri Bencf0706e822007-05-05 11:45:53 -0700719 int wifi_wme_noack_test;
720 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
721
Jiri Bence9f207f2007-05-05 11:46:38 -0700722#ifdef CONFIG_MAC80211_DEBUGFS
723 struct local_debugfsdentries {
Johannes Berg4b7679a2008-09-18 18:14:18 +0200724 struct dentry *rcdir;
725 struct dentry *rcname;
Jiri Bence9f207f2007-05-05 11:46:38 -0700726 struct dentry *frequency;
Jiri Bence9f207f2007-05-05 11:46:38 -0700727 struct dentry *rts_threshold;
728 struct dentry *fragmentation_threshold;
729 struct dentry *short_retry_limit;
730 struct dentry *long_retry_limit;
731 struct dentry *total_ps_buffered;
Jiri Bence9f207f2007-05-05 11:46:38 -0700732 struct dentry *wep_iv;
Jiri Bence9f207f2007-05-05 11:46:38 -0700733 struct dentry *statistics;
734 struct local_debugfsdentries_statsdentries {
735 struct dentry *transmitted_fragment_count;
736 struct dentry *multicast_transmitted_frame_count;
737 struct dentry *failed_count;
738 struct dentry *retry_count;
739 struct dentry *multiple_retry_count;
740 struct dentry *frame_duplicate_count;
741 struct dentry *received_fragment_count;
742 struct dentry *multicast_received_frame_count;
743 struct dentry *transmitted_frame_count;
744 struct dentry *wep_undecryptable_count;
745 struct dentry *num_scans;
746#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
747 struct dentry *tx_handlers_drop;
748 struct dentry *tx_handlers_queued;
749 struct dentry *tx_handlers_drop_unencrypted;
750 struct dentry *tx_handlers_drop_fragment;
751 struct dentry *tx_handlers_drop_wep;
752 struct dentry *tx_handlers_drop_not_assoc;
753 struct dentry *tx_handlers_drop_unauth_port;
754 struct dentry *rx_handlers_drop;
755 struct dentry *rx_handlers_queued;
756 struct dentry *rx_handlers_drop_nullfunc;
757 struct dentry *rx_handlers_drop_defrag;
758 struct dentry *rx_handlers_drop_short;
759 struct dentry *rx_handlers_drop_passive_scan;
760 struct dentry *tx_expand_skb_head;
761 struct dentry *tx_expand_skb_head_cloned;
762 struct dentry *rx_expand_skb_head;
763 struct dentry *rx_expand_skb_head2;
764 struct dentry *rx_handlers_fragments;
765 struct dentry *tx_status_drop;
Jiri Bence9f207f2007-05-05 11:46:38 -0700766#endif
767 struct dentry *dot11ACKFailureCount;
768 struct dentry *dot11RTSFailureCount;
769 struct dentry *dot11FCSErrorCount;
770 struct dentry *dot11RTSSuccessCount;
771 } stats;
772 struct dentry *stations;
773 struct dentry *keys;
774 } debugfs;
775#endif
Jiri Bencf0706e822007-05-05 11:45:53 -0700776};
777
Johannes Berg3e122be2008-07-09 14:40:34 +0200778static inline struct ieee80211_sub_if_data *
779IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
780{
781 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
782
783 BUG_ON(!local || local->mdev == dev);
784
785 return netdev_priv(dev);
786}
787
Ron Rindjunskyeadc8d92008-01-28 14:07:17 +0200788/* this struct represents 802.11n's RA/TID combination */
789struct ieee80211_ra_tid {
790 u8 ra[ETH_ALEN];
791 u16 tid;
792};
793
Luis Carlos Coboee385852008-02-23 15:17:11 +0100794/* Parsed Information Elements */
795struct ieee802_11_elems {
Jouni Malinen43ac2ca2008-08-15 22:21:27 +0300796 u8 *ie_start;
797 size_t total_len;
798
Luis Carlos Coboee385852008-02-23 15:17:11 +0100799 /* pointers to IEs */
800 u8 *ssid;
801 u8 *supp_rates;
802 u8 *fh_params;
803 u8 *ds_params;
804 u8 *cf_params;
805 u8 *tim;
806 u8 *ibss_params;
807 u8 *challenge;
808 u8 *wpa;
809 u8 *rsn;
810 u8 *erp_info;
811 u8 *ext_supp_rates;
812 u8 *wmm_info;
813 u8 *wmm_param;
Johannes Berg09914812008-10-07 19:31:17 +0200814 struct ieee80211_ht_cap *ht_cap_elem;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200815 struct ieee80211_ht_info *ht_info_elem;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100816 u8 *mesh_config;
817 u8 *mesh_id;
818 u8 *peer_link;
819 u8 *preq;
820 u8 *prep;
821 u8 *perr;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300822 u8 *ch_switch_elem;
823 u8 *country_elem;
824 u8 *pwr_constr_elem;
825 u8 *quiet_elem; /* first quite element */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100826
827 /* length of them, respectively */
828 u8 ssid_len;
829 u8 supp_rates_len;
830 u8 fh_params_len;
831 u8 ds_params_len;
832 u8 cf_params_len;
833 u8 tim_len;
834 u8 ibss_params_len;
835 u8 challenge_len;
836 u8 wpa_len;
837 u8 rsn_len;
838 u8 erp_info_len;
839 u8 ext_supp_rates_len;
840 u8 wmm_info_len;
841 u8 wmm_param_len;
Luis Carlos Coboee385852008-02-23 15:17:11 +0100842 u8 mesh_config_len;
843 u8 mesh_id_len;
844 u8 peer_link_len;
845 u8 preq_len;
846 u8 prep_len;
847 u8 perr_len;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300848 u8 ch_switch_elem_len;
849 u8 country_elem_len;
850 u8 pwr_constr_elem_len;
851 u8 quiet_elem_len;
852 u8 num_of_quiet_elem; /* can be more the one */
Luis Carlos Coboee385852008-02-23 15:17:11 +0100853};
854
Jiri Bencf0706e822007-05-05 11:45:53 -0700855static inline struct ieee80211_local *hw_to_local(
856 struct ieee80211_hw *hw)
857{
858 return container_of(hw, struct ieee80211_local, hw);
859}
860
861static inline struct ieee80211_hw *local_to_hw(
862 struct ieee80211_local *local)
863{
864 return &local->hw;
865}
866
Jiri Bencf0706e822007-05-05 11:45:53 -0700867
Johannes Berg571ecf62007-07-27 15:43:22 +0200868static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
869{
870 return compare_ether_addr(raddr, addr) == 0 ||
871 is_broadcast_ether_addr(raddr);
872}
873
874
Johannes Berge8975582008-10-09 12:18:51 +0200875int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
Johannes Berg9d139c82008-07-09 14:40:37 +0200876int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
Johannes Berg5cf121c2008-02-25 16:27:43 +0100877void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200878void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
879 u32 changed);
Johannes Berg0d143fe2008-09-11 00:01:59 +0200880void ieee80211_configure_filter(struct ieee80211_local *local);
Jiri Bencf0706e822007-05-05 11:45:53 -0700881
Johannes Berg9c6bd792008-09-11 00:01:52 +0200882/* wireless extensions */
Jiri Bencf0706e822007-05-05 11:45:53 -0700883extern const struct iw_handler_def ieee80211_iw_handler_def;
David S. Miller65b53e42008-06-10 02:22:26 -0700884
Johannes Berg9c6bd792008-09-11 00:01:52 +0200885/* STA/IBSS code */
886void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
Johannes Bergc2b13452008-09-11 00:01:55 +0200887void ieee80211_scan_work(struct work_struct *work);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200888void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
Jiri Bencf0706e822007-05-05 11:45:53 -0700889 struct ieee80211_rx_status *rx_status);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200890int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
891int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
892int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200893void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
Jiri Bencf0706e822007-05-05 11:45:53 -0700894 struct ieee80211_if_sta *ifsta);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200895struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
896 struct sk_buff *skb, u8 *bssid,
897 u8 *addr, u64 supp_rates);
898int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
899int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
900u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
901u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
902 struct ieee802_11_elems *elems,
903 enum ieee80211_band band);
904void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
905 u8 *ssid, size_t ssid_len);
906
907/* scan/BSS handling */
Johannes Bergc2b13452008-09-11 00:01:55 +0200908int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
909 u8 *ssid, size_t ssid_len);
910int ieee80211_scan_results(struct ieee80211_local *local,
911 struct iw_request_info *info,
912 char *buf, size_t len);
913ieee80211_rx_result
914ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
915 struct sk_buff *skb,
916 struct ieee80211_rx_status *rx_status);
Johannes Berg3e122be2008-07-09 14:40:34 +0200917void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
918void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +0200919int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
920 char *ie, size_t len);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200921
Johannes Berg0a51b272008-09-08 17:44:25 +0200922void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
Johannes Bergc2b13452008-09-11 00:01:55 +0200923int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
924 u8 *ssid, size_t ssid_len);
925struct ieee80211_bss *
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200926ieee80211_bss_info_update(struct ieee80211_local *local,
927 struct ieee80211_rx_status *rx_status,
928 struct ieee80211_mgmt *mgmt,
929 size_t len,
930 struct ieee802_11_elems *elems,
931 int freq, bool beacon);
Johannes Bergc2b13452008-09-11 00:01:55 +0200932struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +0200933ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
934 u8 *ssid, u8 ssid_len);
Johannes Bergc2b13452008-09-11 00:01:55 +0200935struct ieee80211_bss *
Johannes Berg5484e232008-09-08 17:44:27 +0200936ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
937 u8 *ssid, u8 ssid_len);
Johannes Berg98c8fcc2008-09-08 17:44:26 +0200938void ieee80211_rx_bss_put(struct ieee80211_local *local,
Johannes Bergc2b13452008-09-11 00:01:55 +0200939 struct ieee80211_bss *bss);
Luis Carlos Coboee385852008-02-23 15:17:11 +0100940
Johannes Berg3e122be2008-07-09 14:40:34 +0200941/* interface handling */
942int ieee80211_if_add(struct ieee80211_local *local, const char *name,
Johannes Berg05c914f2008-09-11 00:01:58 +0200943 struct net_device **new_dev, enum nl80211_iftype type,
Luis Carlos Coboee385852008-02-23 15:17:11 +0100944 struct vif_params *params);
Johannes Bergf3947e22008-07-09 14:40:36 +0200945int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
Johannes Berg05c914f2008-09-11 00:01:58 +0200946 enum nl80211_iftype type);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200947void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
Johannes Berg75636522008-07-09 14:40:35 +0200948void ieee80211_remove_interfaces(struct ieee80211_local *local);
Jiri Bencf0706e822007-05-05 11:45:53 -0700949
Johannes Berge2ebc742007-07-27 15:43:22 +0200950/* tx handling */
Johannes Berge2ebc742007-07-27 15:43:22 +0200951void ieee80211_clear_tx_pending(struct ieee80211_local *local);
952void ieee80211_tx_pending(unsigned long data);
953int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
954int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
955int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
Johannes Berge2ebc742007-07-27 15:43:22 +0200956
Johannes Bergde1ede7a2008-09-09 14:42:50 +0200957/* HT */
Johannes Bergae5eb022008-10-14 16:58:37 +0200958void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
959 struct ieee80211_ht_cap *ht_cap_ie,
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200960 struct ieee80211_sta_ht_cap *ht_cap);
Johannes Bergae5eb022008-10-14 16:58:37 +0200961u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
962 struct ieee80211_ht_info *hti,
963 u16 ap_ht_cap_flags);
Johannes Bergde1ede7a2008-09-09 14:42:50 +0200964void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
965
966void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
967 u16 tid, u16 initiator, u16 reason);
968void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
969void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
970 struct sta_info *sta,
971 struct ieee80211_mgmt *mgmt, size_t len);
972void ieee80211_process_addba_resp(struct ieee80211_local *local,
973 struct sta_info *sta,
974 struct ieee80211_mgmt *mgmt,
975 size_t len);
976void ieee80211_process_addba_request(struct ieee80211_local *local,
977 struct sta_info *sta,
978 struct ieee80211_mgmt *mgmt,
979 size_t len);
980
Johannes Berg39192c02008-09-09 14:49:03 +0200981/* Spectrum management */
982void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
983 struct ieee80211_mgmt *mgmt,
984 size_t len);
985
Johannes Bergc2d15602007-07-27 15:43:23 +0200986/* utility functions/constants */
987extern void *mac80211_wiphy_privid; /* for wiphy privid */
988extern const unsigned char rfc1042_header[6];
989extern const unsigned char bridge_tunnel_header[6];
Ron Rindjunsky71364712007-12-25 17:00:36 +0200990u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
Johannes Berg05c914f2008-09-11 00:01:58 +0200991 enum nl80211_iftype type);
Johannes Bergc2d15602007-07-27 15:43:23 +0200992int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
993 int rate, int erp, int short_preamble);
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200994void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
Johannes Bergeb063c12007-08-28 17:01:53 -0400995 struct ieee80211_hdr *hdr);
Johannes Berg5825fe12008-09-09 12:56:01 +0200996void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
Johannes Berge50db652008-09-09 15:07:09 +0200997void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
998 int encrypt);
Johannes Berg9c6bd792008-09-11 00:01:52 +0200999void ieee802_11_parse_elems(u8 *start, size_t len,
1000 struct ieee802_11_elems *elems);
Johannes Berge16751c2008-09-11 00:01:53 +02001001int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
Johannes Berg96dd22a2008-09-11 00:01:57 +02001002u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
1003 enum ieee80211_band band);
Jiri Bencf0706e822007-05-05 11:45:53 -07001004
Johannes Bergf4ea83d2008-06-30 15:10:46 +02001005#ifdef CONFIG_MAC80211_NOINLINE
Johannes Bergd9e8a702008-06-30 15:10:44 +02001006#define debug_noinline noinline
1007#else
1008#define debug_noinline
1009#endif
1010
Jiri Bencf0706e822007-05-05 11:45:53 -07001011#endif /* IEEE80211_I_H */