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Commit | Line | Data |
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f0706e82 JB |
1 | /* |
2 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
3 | * Copyright 2005, Devicescape Software, Inc. | |
4 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
e039fa4a | 5 | * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net> |
f0706e82 JB |
6 | * |
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> | |
571ecf67 | 25 | #include <linux/etherdevice.h> |
fe7a5d5c | 26 | #include <net/ieee80211_radiotap.h> |
93da9cc1 | 27 | #include <net/cfg80211.h> |
51cb6db0 | 28 | #include <net/mac80211.h> |
2c8dccc7 | 29 | #include "key.h" |
f0706e82 JB |
30 | #include "sta_info.h" |
31 | ||
9cfb0009 | 32 | struct ieee80211_local; |
f0706e82 JB |
33 | |
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 | |
765cb46a | 45 | #define IEEE80211_ENCRYPT_TAILROOM 18 |
f0706e82 JB |
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 | ||
0a51b27e JB |
53 | /* |
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 | ||
20ad19d0 JB |
59 | #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024)) |
60 | ||
f0706e82 JB |
61 | struct ieee80211_fragment_entry { |
62 | unsigned long first_frag_time; | |
63 | unsigned int seq; | |
64 | unsigned int rx_queue; | |
65 | unsigned int last_frag; | |
66 | unsigned int extra_len; | |
67 | struct sk_buff_head skb_list; | |
68 | int ccmp; /* Whether fragments were encrypted with CCMP */ | |
69 | u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ | |
70 | }; | |
71 | ||
72 | ||
c2b13452 | 73 | struct ieee80211_bss { |
00d3f14c JB |
74 | /* don't want to look up all the time */ |
75 | size_t ssid_len; | |
f0706e82 | 76 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
00d3f14c | 77 | |
98f7dfd8 | 78 | u8 dtim_period; |
00d3f14c | 79 | |
43ac2ca3 | 80 | bool wmm_used; |
00d3f14c JB |
81 | |
82 | unsigned long last_probe_resp; | |
83 | ||
ee385855 LCC |
84 | #ifdef CONFIG_MAC80211_MESH |
85 | u8 *mesh_id; | |
86 | size_t mesh_id_len; | |
24736701 | 87 | u8 *mesh_cfg; |
902acc78 | 88 | #endif |
00d3f14c | 89 | |
f0706e82 JB |
90 | #define IEEE80211_MAX_SUPP_RATES 32 |
91 | u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; | |
92 | size_t supp_rates_len; | |
f0706e82 | 93 | |
00d3f14c JB |
94 | /* |
95 | * During assocation, we save an ERP value from a probe response so | |
5628221c DD |
96 | * that we can feed ERP info to the driver when handling the |
97 | * association completes. these fields probably won't be up-to-date | |
00d3f14c JB |
98 | * otherwise, you probably don't want to use them. |
99 | */ | |
100 | bool has_erp_value; | |
5628221c | 101 | u8 erp_value; |
f0706e82 JB |
102 | }; |
103 | ||
c2b13452 | 104 | static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss) |
902acc78 JB |
105 | { |
106 | #ifdef CONFIG_MAC80211_MESH | |
107 | return bss->mesh_cfg; | |
108 | #endif | |
109 | return NULL; | |
110 | } | |
111 | ||
c2b13452 | 112 | static inline u8 *bss_mesh_id(struct ieee80211_bss *bss) |
902acc78 JB |
113 | { |
114 | #ifdef CONFIG_MAC80211_MESH | |
115 | return bss->mesh_id; | |
116 | #endif | |
117 | return NULL; | |
118 | } | |
119 | ||
c2b13452 | 120 | static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss) |
902acc78 JB |
121 | { |
122 | #ifdef CONFIG_MAC80211_MESH | |
123 | return bss->mesh_id_len; | |
124 | #endif | |
125 | return 0; | |
126 | } | |
127 | ||
f0706e82 | 128 | |
9ae54c84 JB |
129 | typedef unsigned __bitwise__ ieee80211_tx_result; |
130 | #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) | |
131 | #define TX_DROP ((__force ieee80211_tx_result) 1u) | |
132 | #define TX_QUEUED ((__force ieee80211_tx_result) 2u) | |
133 | ||
5cf121c3 JB |
134 | #define IEEE80211_TX_FRAGMENTED BIT(0) |
135 | #define IEEE80211_TX_UNICAST BIT(1) | |
136 | #define IEEE80211_TX_PS_BUFFERED BIT(2) | |
5cf121c3 JB |
137 | |
138 | struct ieee80211_tx_data { | |
139 | struct sk_buff *skb; | |
5cf121c3 JB |
140 | struct ieee80211_local *local; |
141 | struct ieee80211_sub_if_data *sdata; | |
142 | struct sta_info *sta; | |
5cf121c3 | 143 | struct ieee80211_key *key; |
5cf121c3 | 144 | |
5cf121c3 | 145 | struct ieee80211_channel *channel; |
5cf121c3 | 146 | |
a4b7d7bd | 147 | u16 ethertype; |
056cdd59 | 148 | unsigned int flags; |
5cf121c3 JB |
149 | }; |
150 | ||
151 | ||
9ae54c84 | 152 | typedef unsigned __bitwise__ ieee80211_rx_result; |
e4c26add JB |
153 | #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) |
154 | #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) | |
155 | #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) | |
156 | #define RX_QUEUED ((__force ieee80211_rx_result) 3u) | |
9ae54c84 | 157 | |
5cf121c3 | 158 | #define IEEE80211_RX_IN_SCAN BIT(0) |
badffb72 | 159 | /* frame is destined to interface currently processed (incl. multicast frames) */ |
5cf121c3 JB |
160 | #define IEEE80211_RX_RA_MATCH BIT(1) |
161 | #define IEEE80211_RX_AMSDU BIT(2) | |
8c0c709e | 162 | #define IEEE80211_RX_FRAGMENTED BIT(3) |
2569a826 | 163 | /* only add flags here that do not change with subframes of an aMPDU */ |
5cf121c3 JB |
164 | |
165 | struct ieee80211_rx_data { | |
f0706e82 | 166 | struct sk_buff *skb; |
f0706e82 JB |
167 | struct ieee80211_local *local; |
168 | struct ieee80211_sub_if_data *sdata; | |
169 | struct sta_info *sta; | |
f0706e82 | 170 | struct ieee80211_key *key; |
056cdd59 | 171 | |
056cdd59 | 172 | unsigned int flags; |
5cf121c3 | 173 | int queue; |
5cf121c3 JB |
174 | u32 tkip_iv32; |
175 | u16 tkip_iv16; | |
f0706e82 JB |
176 | }; |
177 | ||
5dfdaf58 JB |
178 | struct beacon_data { |
179 | u8 *head, *tail; | |
180 | int head_len, tail_len; | |
181 | int dtim_period; | |
182 | }; | |
183 | ||
f0706e82 | 184 | struct ieee80211_if_ap { |
5dfdaf58 | 185 | struct beacon_data *beacon; |
f0706e82 | 186 | |
0ec3ca44 JB |
187 | struct list_head vlans; |
188 | ||
f0706e82 JB |
189 | /* yes, this looks ugly, but guarantees that we can later use |
190 | * bitmap_empty :) | |
004c872e | 191 | * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ |
f0706e82 | 192 | u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; |
f0706e82 | 193 | struct sk_buff_head ps_bc_buf; |
056cdd59 | 194 | atomic_t num_sta_ps; /* number of stations in PS mode */ |
5dfdaf58 | 195 | int dtim_count; |
f0706e82 JB |
196 | }; |
197 | ||
198 | struct ieee80211_if_wds { | |
f0706e82 | 199 | struct sta_info *sta; |
056cdd59 | 200 | u8 remote_addr[ETH_ALEN]; |
f0706e82 JB |
201 | }; |
202 | ||
203 | struct ieee80211_if_vlan { | |
0ec3ca44 | 204 | struct list_head list; |
f14543ee FF |
205 | |
206 | /* used for all tx if the VLAN is configured to 4-addr mode */ | |
207 | struct sta_info *sta; | |
f0706e82 JB |
208 | }; |
209 | ||
ee385855 | 210 | struct mesh_stats { |
c8a61a7d DW |
211 | __u32 fwded_mcast; /* Mesh forwarded multicast frames */ |
212 | __u32 fwded_unicast; /* Mesh forwarded unicast frames */ | |
213 | __u32 fwded_frames; /* Mesh total forwarded frames */ | |
ee385855 LCC |
214 | __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ |
215 | __u32 dropped_frames_no_route; /* Not transmitted, no route found */ | |
216 | atomic_t estab_plinks; | |
217 | }; | |
218 | ||
219 | #define PREQ_Q_F_START 0x1 | |
220 | #define PREQ_Q_F_REFRESH 0x2 | |
221 | struct mesh_preq_queue { | |
222 | struct list_head list; | |
223 | u8 dst[ETH_ALEN]; | |
224 | u8 flags; | |
225 | }; | |
226 | ||
f679f65d | 227 | enum ieee80211_work_type { |
b8bc4b0a | 228 | IEEE80211_WORK_ABORT, |
af6b6374 | 229 | IEEE80211_WORK_DIRECT_PROBE, |
f679f65d JB |
230 | IEEE80211_WORK_AUTH, |
231 | IEEE80211_WORK_ASSOC, | |
b8bc4b0a | 232 | IEEE80211_WORK_REMAIN_ON_CHANNEL, |
77fdaa12 JB |
233 | }; |
234 | ||
af6b6374 JB |
235 | /** |
236 | * enum work_done_result - indicates what to do after work was done | |
237 | * | |
238 | * @WORK_DONE_DESTROY: This work item is no longer needed, destroy. | |
239 | * @WORK_DONE_REQUEUE: This work item was reset to be reused, and | |
240 | * should be requeued. | |
241 | */ | |
242 | enum work_done_result { | |
243 | WORK_DONE_DESTROY, | |
244 | WORK_DONE_REQUEUE, | |
245 | }; | |
246 | ||
f679f65d | 247 | struct ieee80211_work { |
77fdaa12 | 248 | struct list_head list; |
77fdaa12 | 249 | |
af6b6374 JB |
250 | struct rcu_head rcu_head; |
251 | ||
252 | struct ieee80211_sub_if_data *sdata; | |
253 | ||
254 | enum work_done_result (*done)(struct ieee80211_work *wk, | |
255 | struct sk_buff *skb); | |
256 | ||
f679f65d | 257 | struct ieee80211_channel *chan; |
e4da8c37 | 258 | enum nl80211_channel_type chan_type; |
af6b6374 | 259 | |
f679f65d JB |
260 | unsigned long timeout; |
261 | enum ieee80211_work_type type; | |
262 | ||
af6b6374 JB |
263 | u8 filter_ta[ETH_ALEN]; |
264 | ||
e4da8c37 JB |
265 | bool started; |
266 | ||
f679f65d JB |
267 | union { |
268 | struct { | |
269 | int tries; | |
270 | u16 algorithm, transaction; | |
271 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
272 | u8 ssid_len; | |
f679f65d JB |
273 | u8 key[WLAN_KEY_LEN_WEP104]; |
274 | u8 key_len, key_idx; | |
275 | bool privacy; | |
af6b6374 | 276 | } probe_auth; |
f679f65d | 277 | struct { |
0c1ad2ca | 278 | struct cfg80211_bss *bss; |
f679f65d JB |
279 | const u8 *supp_rates; |
280 | const u8 *ht_information_ie; | |
af6b6374 | 281 | enum ieee80211_smps_mode smps; |
f679f65d JB |
282 | int tries; |
283 | u16 capability; | |
af6b6374 | 284 | u8 prev_bssid[ETH_ALEN]; |
f679f65d JB |
285 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
286 | u8 ssid_len; | |
287 | u8 supp_rates_len; | |
af6b6374 | 288 | bool wmm_used, use_11n; |
f679f65d | 289 | } assoc; |
b8bc4b0a | 290 | struct { |
e4da8c37 JB |
291 | u32 duration; |
292 | bool started; | |
b8bc4b0a | 293 | } remain; |
f679f65d | 294 | }; |
fffd0934 | 295 | |
f679f65d | 296 | int ie_len; |
77fdaa12 | 297 | /* must be last */ |
f679f65d | 298 | u8 ie[0]; |
77fdaa12 JB |
299 | }; |
300 | ||
46900298 | 301 | /* flags used in struct ieee80211_if_managed.flags */ |
ab1faead | 302 | enum ieee80211_sta_flags { |
b291ba11 JB |
303 | IEEE80211_STA_BEACON_POLL = BIT(0), |
304 | IEEE80211_STA_CONNECTION_POLL = BIT(1), | |
305 | IEEE80211_STA_CONTROL_PORT = BIT(2), | |
b291ba11 JB |
306 | IEEE80211_STA_DISABLE_11N = BIT(4), |
307 | IEEE80211_STA_CSA_RECEIVED = BIT(5), | |
308 | IEEE80211_STA_MFP_ENABLED = BIT(6), | |
ab1faead JB |
309 | }; |
310 | ||
46900298 | 311 | struct ieee80211_if_managed { |
056cdd59 | 312 | struct timer_list timer; |
b291ba11 JB |
313 | struct timer_list conn_mon_timer; |
314 | struct timer_list bcn_mon_timer; | |
c481ec97 | 315 | struct timer_list chswitch_timer; |
056cdd59 | 316 | struct work_struct work; |
b291ba11 | 317 | struct work_struct monitor_work; |
c481ec97 | 318 | struct work_struct chswitch_work; |
04de8381 | 319 | struct work_struct beacon_loss_work; |
46900298 | 320 | |
b291ba11 | 321 | unsigned long probe_timeout; |
a43abf29 | 322 | int probe_send_count; |
b291ba11 | 323 | |
77fdaa12 | 324 | struct mutex mtx; |
0c1ad2ca | 325 | struct cfg80211_bss *associated; |
46900298 | 326 | |
77fdaa12 | 327 | u8 bssid[ETH_ALEN]; |
46900298 | 328 | |
f0706e82 | 329 | u16 aid; |
f0706e82 | 330 | |
056cdd59 JB |
331 | struct sk_buff_head skb_queue; |
332 | ||
5bb644a0 | 333 | unsigned long timers_running; /* used for quiesce/restart */ |
965bedad | 334 | bool powersave; /* powersave requested for this iface */ |
0f78231b JB |
335 | enum ieee80211_smps_mode req_smps, /* requested smps mode */ |
336 | ap_smps; /* smps mode AP thinks we're in */ | |
965bedad | 337 | |
d6f2da5b | 338 | unsigned int flags; |
f0706e82 | 339 | |
d91f36db JB |
340 | u32 beacon_crc; |
341 | ||
fdfacf0a JM |
342 | enum { |
343 | IEEE80211_MFP_DISABLED, | |
344 | IEEE80211_MFP_OPTIONAL, | |
345 | IEEE80211_MFP_REQUIRED | |
346 | } mfp; /* management frame protection */ | |
347 | ||
f0706e82 | 348 | int wmm_last_param_set; |
9bc383de JB |
349 | |
350 | u8 use_4addr; | |
f0706e82 JB |
351 | }; |
352 | ||
46900298 JB |
353 | enum ieee80211_ibss_request { |
354 | IEEE80211_IBSS_REQ_RUN = 0, | |
355 | }; | |
356 | ||
357 | struct ieee80211_if_ibss { | |
358 | struct timer_list timer; | |
359 | struct work_struct work; | |
360 | ||
361 | struct sk_buff_head skb_queue; | |
362 | ||
af8cdcd8 JB |
363 | unsigned long request; |
364 | unsigned long last_scan_completed; | |
5bb644a0 JB |
365 | |
366 | bool timer_running; | |
367 | ||
af8cdcd8 JB |
368 | bool fixed_bssid; |
369 | bool fixed_channel; | |
fffd0934 | 370 | bool privacy; |
46900298 JB |
371 | |
372 | u8 bssid[ETH_ALEN]; | |
af8cdcd8 JB |
373 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
374 | u8 ssid_len, ie_len; | |
375 | u8 *ie; | |
376 | struct ieee80211_channel *channel; | |
46900298 JB |
377 | |
378 | unsigned long ibss_join_req; | |
af8cdcd8 JB |
379 | /* probe response/beacon for IBSS */ |
380 | struct sk_buff *presp, *skb; | |
46900298 JB |
381 | |
382 | enum { | |
383 | IEEE80211_IBSS_MLME_SEARCH, | |
384 | IEEE80211_IBSS_MLME_JOINED, | |
385 | } state; | |
386 | }; | |
387 | ||
472dbc45 JB |
388 | struct ieee80211_if_mesh { |
389 | struct work_struct work; | |
390 | struct timer_list housekeeping_timer; | |
391 | struct timer_list mesh_path_timer; | |
e304bfd3 | 392 | struct timer_list mesh_path_root_timer; |
472dbc45 JB |
393 | struct sk_buff_head skb_queue; |
394 | ||
5bb644a0 JB |
395 | unsigned long timers_running; |
396 | ||
18889231 | 397 | unsigned long wrkq_flags; |
472dbc45 JB |
398 | |
399 | u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; | |
400 | size_t mesh_id_len; | |
401 | /* Active Path Selection Protocol Identifier */ | |
3491707a | 402 | u8 mesh_pp_id; |
472dbc45 | 403 | /* Active Path Selection Metric Identifier */ |
3491707a | 404 | u8 mesh_pm_id; |
472dbc45 | 405 | /* Congestion Control Mode Identifier */ |
3491707a | 406 | u8 mesh_cc_id; |
9e03fdfd | 407 | /* Synchronization Protocol Identifier */ |
3491707a | 408 | u8 mesh_sp_id; |
9e03fdfd | 409 | /* Authentication Protocol Identifier */ |
3491707a | 410 | u8 mesh_auth_id; |
d19b3bf6 RP |
411 | /* Local mesh Sequence Number */ |
412 | u32 sn; | |
472dbc45 JB |
413 | /* Last used PREQ ID */ |
414 | u32 preq_id; | |
415 | atomic_t mpaths; | |
d19b3bf6 RP |
416 | /* Timestamp of last SN update */ |
417 | unsigned long last_sn_update; | |
418 | /* Timestamp of last SN sent */ | |
472dbc45 JB |
419 | unsigned long last_preq; |
420 | struct mesh_rmc *rmc; | |
421 | spinlock_t mesh_preq_queue_lock; | |
422 | struct mesh_preq_queue preq_queue; | |
423 | int preq_queue_len; | |
424 | struct mesh_stats mshstats; | |
425 | struct mesh_config mshcfg; | |
426 | u32 mesh_seqnum; | |
427 | bool accepting_plinks; | |
472dbc45 | 428 | }; |
902acc78 JB |
429 | |
430 | #ifdef CONFIG_MAC80211_MESH | |
472dbc45 JB |
431 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
432 | do { (msh)->mshstats.name++; } while (0) | |
902acc78 | 433 | #else |
472dbc45 | 434 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
902acc78 JB |
435 | do { } while (0) |
436 | #endif | |
f0706e82 | 437 | |
213cd118 JB |
438 | /** |
439 | * enum ieee80211_sub_if_data_flags - virtual interface flags | |
440 | * | |
441 | * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets | |
442 | * @IEEE80211_SDATA_PROMISC: interface is promisc | |
213cd118 JB |
443 | * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode |
444 | * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between | |
445 | * associated stations and deliver multicast frames both | |
446 | * back to wireless media and to the local net stack. | |
447 | */ | |
448 | enum ieee80211_sub_if_data_flags { | |
449 | IEEE80211_SDATA_ALLMULTI = BIT(0), | |
450 | IEEE80211_SDATA_PROMISC = BIT(1), | |
7986cf95 JB |
451 | IEEE80211_SDATA_OPERATING_GMODE = BIT(2), |
452 | IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), | |
213cd118 JB |
453 | }; |
454 | ||
f0706e82 JB |
455 | struct ieee80211_sub_if_data { |
456 | struct list_head list; | |
f0706e82 JB |
457 | |
458 | struct wireless_dev wdev; | |
459 | ||
11a843b7 JB |
460 | /* keys */ |
461 | struct list_head key_list; | |
462 | ||
f0706e82 JB |
463 | struct net_device *dev; |
464 | struct ieee80211_local *local; | |
465 | ||
13262ffd | 466 | unsigned int flags; |
7e9ed188 | 467 | |
f0706e82 | 468 | int drop_unencrypted; |
f0706e82 | 469 | |
47846c9b JB |
470 | char name[IFNAMSIZ]; |
471 | ||
413ad50a JB |
472 | /* |
473 | * keep track of whether the HT opmode (stored in | |
474 | * vif.bss_info.ht_operation_mode) is valid. | |
475 | */ | |
476 | bool ht_opmode_valid; | |
477 | ||
f0706e82 JB |
478 | /* Fragment table for host-based reassembly */ |
479 | struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; | |
480 | unsigned int fragment_next; | |
481 | ||
482 | #define NUM_DEFAULT_KEYS 4 | |
3cfcf6ac JM |
483 | #define NUM_DEFAULT_MGMT_KEYS 2 |
484 | struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; | |
f0706e82 | 485 | struct ieee80211_key *default_key; |
3cfcf6ac | 486 | struct ieee80211_key *default_mgmt_key; |
f0706e82 | 487 | |
94778280 JB |
488 | u16 sequence_number; |
489 | ||
471b3efd | 490 | /* |
3e122be0 JB |
491 | * AP this belongs to: self in AP mode and |
492 | * corresponding AP in VLAN mode, NULL for | |
493 | * all others (might be needed later in IBSS) | |
471b3efd | 494 | */ |
3e122be0 JB |
495 | struct ieee80211_if_ap *bss; |
496 | ||
37eb0b16 JM |
497 | /* bitmap of allowed (non-MCS) rate indexes for rate control */ |
498 | u32 rc_rateidx_mask[IEEE80211_NUM_BANDS]; | |
f0706e82 JB |
499 | |
500 | union { | |
501 | struct ieee80211_if_ap ap; | |
502 | struct ieee80211_if_wds wds; | |
503 | struct ieee80211_if_vlan vlan; | |
46900298 JB |
504 | struct ieee80211_if_managed mgd; |
505 | struct ieee80211_if_ibss ibss; | |
472dbc45 JB |
506 | #ifdef CONFIG_MAC80211_MESH |
507 | struct ieee80211_if_mesh mesh; | |
508 | #endif | |
8cc9a739 | 509 | u32 mntr_flags; |
f0706e82 | 510 | } u; |
e9f207f0 JB |
511 | |
512 | #ifdef CONFIG_MAC80211_DEBUGFS | |
2b58b209 | 513 | struct { |
7bcfaf2f | 514 | struct dentry *dir; |
2b58b209 | 515 | struct dentry *default_key; |
3cfcf6ac | 516 | struct dentry *default_mgmt_key; |
7bcfaf2f | 517 | } debugfs; |
e9f207f0 | 518 | #endif |
32bfd35d JB |
519 | /* must be last, dynamically sized area in this! */ |
520 | struct ieee80211_vif vif; | |
f0706e82 JB |
521 | }; |
522 | ||
32bfd35d JB |
523 | static inline |
524 | struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) | |
525 | { | |
526 | return container_of(p, struct ieee80211_sub_if_data, vif); | |
527 | } | |
528 | ||
472dbc45 JB |
529 | static inline void |
530 | ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata, | |
531 | u8 mesh_id_len, u8 *mesh_id) | |
532 | { | |
533 | #ifdef CONFIG_MAC80211_MESH | |
534 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
535 | ifmsh->mesh_id_len = mesh_id_len; | |
536 | memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len); | |
537 | #else | |
538 | WARN_ON(1); | |
539 | #endif | |
540 | } | |
541 | ||
f0706e82 JB |
542 | enum { |
543 | IEEE80211_RX_MSG = 1, | |
544 | IEEE80211_TX_STATUS_MSG = 2, | |
eadc8d9e RR |
545 | IEEE80211_DELBA_MSG = 3, |
546 | IEEE80211_ADDBA_MSG = 4, | |
f0706e82 JB |
547 | }; |
548 | ||
ce7c9111 KV |
549 | enum queue_stop_reason { |
550 | IEEE80211_QUEUE_STOP_REASON_DRIVER, | |
520eb820 | 551 | IEEE80211_QUEUE_STOP_REASON_PS, |
96f5e66e JB |
552 | IEEE80211_QUEUE_STOP_REASON_CSA, |
553 | IEEE80211_QUEUE_STOP_REASON_AGGREGATION, | |
25420604 | 554 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
8f77f384 | 555 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
ce7c9111 KV |
556 | }; |
557 | ||
142b9f50 HS |
558 | /** |
559 | * mac80211 scan flags - currently active scan mode | |
560 | * | |
561 | * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as | |
562 | * well be on the operating channel | |
563 | * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to | |
564 | * determine if we are on the operating channel or not | |
565 | * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning, | |
566 | * gets only set in conjunction with SCAN_SW_SCANNING | |
567 | */ | |
fbe9c429 HS |
568 | enum { |
569 | SCAN_SW_SCANNING, | |
142b9f50 HS |
570 | SCAN_HW_SCANNING, |
571 | SCAN_OFF_CHANNEL, | |
572 | }; | |
573 | ||
574 | /** | |
575 | * enum mac80211_scan_state - scan state machine states | |
576 | * | |
577 | * @SCAN_DECISION: Main entry point to the scan state machine, this state | |
578 | * determines if we should keep on scanning or switch back to the | |
579 | * operating channel | |
580 | * @SCAN_SET_CHANNEL: Set the next channel to be scanned | |
581 | * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses | |
582 | * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP | |
583 | * about us leaving the channel and stop all associated STA interfaces | |
584 | * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the | |
585 | * AP about us being back and restart all associated STA interfaces | |
586 | */ | |
587 | enum mac80211_scan_state { | |
588 | SCAN_DECISION, | |
589 | SCAN_SET_CHANNEL, | |
590 | SCAN_SEND_PROBE, | |
591 | SCAN_LEAVE_OPER_CHANNEL, | |
592 | SCAN_ENTER_OPER_CHANNEL, | |
fbe9c429 HS |
593 | }; |
594 | ||
f0706e82 JB |
595 | struct ieee80211_local { |
596 | /* embed the driver visible part. | |
597 | * don't cast (use the static inlines below), but we keep | |
598 | * it first anyway so they become a no-op */ | |
599 | struct ieee80211_hw hw; | |
600 | ||
601 | const struct ieee80211_ops *ops; | |
602 | ||
af6b6374 JB |
603 | /* |
604 | * work stuff, potentially off-channel (in the future) | |
605 | */ | |
606 | struct mutex work_mtx; | |
607 | struct list_head work_list; | |
608 | struct timer_list work_timer; | |
609 | struct work_struct work_work; | |
610 | struct sk_buff_head work_skb_queue; | |
611 | ||
42935eca LR |
612 | /* |
613 | * private workqueue to mac80211. mac80211 makes this accessible | |
614 | * via ieee80211_queue_work() | |
615 | */ | |
616 | struct workqueue_struct *workqueue; | |
617 | ||
e4e72fb4 | 618 | unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; |
96f5e66e | 619 | /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ |
ce7c9111 | 620 | spinlock_t queue_stop_reason_lock; |
96f5e66e | 621 | |
f0706e82 | 622 | int open_count; |
3d30d949 | 623 | int monitors, cooked_mntrs; |
8cc9a739 | 624 | /* number of interfaces with corresponding FIF_ flags */ |
e3b90ca2 | 625 | int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll; |
4150c572 | 626 | unsigned int filter_flags; /* FIF_* */ |
3b8d81e0 JB |
627 | |
628 | /* protects the aggregated multicast list and filter calls */ | |
629 | spinlock_t filter_lock; | |
630 | ||
3ac64bee JB |
631 | /* used for uploading changed mc list */ |
632 | struct work_struct reconfig_filter; | |
633 | ||
0f78231b JB |
634 | /* used to reconfigure hardware SM PS */ |
635 | struct work_struct recalc_smps; | |
636 | ||
3b8d81e0 JB |
637 | /* aggregated multicast list */ |
638 | struct dev_addr_list *mc_list; | |
639 | int mc_count; | |
640 | ||
d0709a65 | 641 | bool tim_in_locked_section; /* see ieee80211_beacon_get() */ |
5bb644a0 JB |
642 | |
643 | /* | |
644 | * suspended is true if we finished all the suspend _and_ we have | |
645 | * not yet come up from resume. This is to be used by mac80211 | |
646 | * to ensure driver sanity during suspend and mac80211's own | |
647 | * sanity. It can eventually be used for WoW as well. | |
648 | */ | |
649 | bool suspended; | |
650 | ||
ceb99fe0 JB |
651 | /* |
652 | * Resuming is true while suspended, but when we're reprogramming the | |
653 | * hardware -- at that time it's allowed to use ieee80211_queue_work() | |
654 | * again even though some other parts of the stack are still suspended | |
655 | * and we still drop received frames to avoid waking the stack. | |
656 | */ | |
657 | bool resuming; | |
658 | ||
5bb644a0 JB |
659 | /* |
660 | * quiescing is true during the suspend process _only_ to | |
661 | * ease timer cancelling etc. | |
662 | */ | |
663 | bool quiescing; | |
664 | ||
ea77f12f JB |
665 | /* device is started */ |
666 | bool started; | |
667 | ||
b306f453 | 668 | int tx_headroom; /* required headroom for hardware/radiotap */ |
f0706e82 | 669 | |
f0706e82 JB |
670 | /* Tasklet and skb queue to process calls from IRQ mode. All frames |
671 | * added to skb_queue will be processed, but frames in | |
672 | * skb_queue_unreliable may be dropped if the total length of these | |
673 | * queues increases over the limit. */ | |
674 | #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 | |
675 | struct tasklet_struct tasklet; | |
676 | struct sk_buff_head skb_queue; | |
677 | struct sk_buff_head skb_queue_unreliable; | |
678 | ||
d0709a65 JB |
679 | /* Station data */ |
680 | /* | |
681 | * The lock only protects the list, hash, timer and counter | |
682 | * against manipulation, reads are done in RCU. Additionally, | |
b16bd15c | 683 | * the lock protects each BSS's TIM bitmap. |
d0709a65 JB |
684 | */ |
685 | spinlock_t sta_lock; | |
686 | unsigned long num_sta; | |
f0706e82 | 687 | struct list_head sta_list; |
f0706e82 JB |
688 | struct sta_info *sta_hash[STA_HASH_SIZE]; |
689 | struct timer_list sta_cleanup; | |
f5ea9120 | 690 | int sta_generation; |
f0706e82 | 691 | |
2a577d98 | 692 | struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; |
f0706e82 JB |
693 | struct tasklet_struct tx_pending_tasklet; |
694 | ||
cd8ffc80 JB |
695 | /* |
696 | * This lock is used to prevent concurrent A-MPDU | |
697 | * session start/stop processing, this thus also | |
698 | * synchronises the ->ampdu_action() callback to | |
699 | * drivers and limits it to one at a time. | |
700 | */ | |
701 | spinlock_t ampdu_lock; | |
702 | ||
53918994 JB |
703 | /* number of interfaces with corresponding IFF_ flags */ |
704 | atomic_t iff_allmultis, iff_promiscs; | |
f0706e82 JB |
705 | |
706 | struct rate_control_ref *rate_ctrl; | |
707 | ||
f0706e82 JB |
708 | struct crypto_blkcipher *wep_tx_tfm; |
709 | struct crypto_blkcipher *wep_rx_tfm; | |
710 | u32 wep_iv; | |
f0706e82 | 711 | |
c771c9d8 | 712 | /* see iface.c */ |
79010420 | 713 | struct list_head interfaces; |
c771c9d8 | 714 | struct mutex iflist_mtx; |
79010420 | 715 | |
b16bd15c JB |
716 | /* |
717 | * Key lock, protects sdata's key_list and sta_info's | |
718 | * key pointers (write access, they're RCU.) | |
719 | */ | |
720 | spinlock_t key_lock; | |
721 | ||
722 | ||
c2b13452 | 723 | /* Scanning and BSS list */ |
f3b85252 | 724 | struct mutex scan_mtx; |
fbe9c429 | 725 | unsigned long scanning; |
2a519311 | 726 | struct cfg80211_ssid scan_ssid; |
5ba63533 | 727 | struct cfg80211_scan_request *int_scan_req; |
4d36ec58 | 728 | struct cfg80211_scan_request *scan_req, *hw_scan_req; |
2a519311 | 729 | struct ieee80211_channel *scan_channel; |
4d36ec58 | 730 | enum ieee80211_band hw_scan_band; |
f0706e82 | 731 | int scan_channel_idx; |
de95a54b | 732 | int scan_ies_len; |
8318d78a | 733 | |
977923b0 | 734 | enum mac80211_scan_state next_scan_state; |
f0706e82 | 735 | struct delayed_work scan_work; |
491775a5 | 736 | struct ieee80211_sub_if_data *scan_sdata; |
094d05dc | 737 | enum nl80211_channel_type oper_channel_type; |
2a519311 | 738 | struct ieee80211_channel *oper_channel, *csa_channel; |
f0706e82 | 739 | |
b8bc4b0a JB |
740 | /* Temporary remain-on-channel for off-channel operations */ |
741 | struct ieee80211_channel *tmp_channel; | |
742 | enum nl80211_channel_type tmp_channel_type; | |
743 | ||
f0706e82 JB |
744 | /* SNMP counters */ |
745 | /* dot11CountersTable */ | |
746 | u32 dot11TransmittedFragmentCount; | |
747 | u32 dot11MulticastTransmittedFrameCount; | |
748 | u32 dot11FailedCount; | |
749 | u32 dot11RetryCount; | |
750 | u32 dot11MultipleRetryCount; | |
751 | u32 dot11FrameDuplicateCount; | |
752 | u32 dot11ReceivedFragmentCount; | |
753 | u32 dot11MulticastReceivedFrameCount; | |
754 | u32 dot11TransmittedFrameCount; | |
f0706e82 JB |
755 | |
756 | #ifdef CONFIG_MAC80211_LEDS | |
757 | int tx_led_counter, rx_led_counter; | |
cdcb006f ID |
758 | struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; |
759 | char tx_led_name[32], rx_led_name[32], | |
760 | assoc_led_name[32], radio_led_name[32]; | |
f0706e82 JB |
761 | #endif |
762 | ||
e9f207f0 JB |
763 | #ifdef CONFIG_MAC80211_DEBUGFS |
764 | struct work_struct sta_debugfs_add; | |
765 | #endif | |
766 | ||
f0706e82 JB |
767 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
768 | /* TX/RX handler statistics */ | |
769 | unsigned int tx_handlers_drop; | |
770 | unsigned int tx_handlers_queued; | |
771 | unsigned int tx_handlers_drop_unencrypted; | |
772 | unsigned int tx_handlers_drop_fragment; | |
773 | unsigned int tx_handlers_drop_wep; | |
774 | unsigned int tx_handlers_drop_not_assoc; | |
775 | unsigned int tx_handlers_drop_unauth_port; | |
776 | unsigned int rx_handlers_drop; | |
777 | unsigned int rx_handlers_queued; | |
778 | unsigned int rx_handlers_drop_nullfunc; | |
779 | unsigned int rx_handlers_drop_defrag; | |
780 | unsigned int rx_handlers_drop_short; | |
781 | unsigned int rx_handlers_drop_passive_scan; | |
782 | unsigned int tx_expand_skb_head; | |
783 | unsigned int tx_expand_skb_head_cloned; | |
784 | unsigned int rx_expand_skb_head; | |
785 | unsigned int rx_expand_skb_head2; | |
786 | unsigned int rx_handlers_fragments; | |
787 | unsigned int tx_status_drop; | |
f0706e82 JB |
788 | #define I802_DEBUG_INC(c) (c)++ |
789 | #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
790 | #define I802_DEBUG_INC(c) do { } while (0) | |
791 | #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
792 | ||
793 | ||
f0706e82 JB |
794 | int total_ps_buffered; /* total number of all buffered unicast and |
795 | * multicast packets for power saving stations | |
796 | */ | |
f0706e82 JB |
797 | int wifi_wme_noack_test; |
798 | unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ | |
520eb820 | 799 | |
572e0012 | 800 | bool pspolling; |
b203ffc3 | 801 | bool offchannel_ps_enabled; |
965bedad JB |
802 | /* |
803 | * PS can only be enabled when we have exactly one managed | |
804 | * interface (and monitors) in PS, this then points there. | |
805 | */ | |
806 | struct ieee80211_sub_if_data *ps_sdata; | |
520eb820 KV |
807 | struct work_struct dynamic_ps_enable_work; |
808 | struct work_struct dynamic_ps_disable_work; | |
809 | struct timer_list dynamic_ps_timer; | |
10f644a4 | 810 | struct notifier_block network_latency_notifier; |
f0706e82 | 811 | |
2bf30fab | 812 | int user_power_level; /* in dBm */ |
a8302de9 | 813 | int power_constr_level; /* in dBm */ |
2bf30fab | 814 | |
0f78231b JB |
815 | enum ieee80211_smps_mode smps_mode; |
816 | ||
f2753ddb JB |
817 | struct work_struct restart_work; |
818 | ||
e9f207f0 JB |
819 | #ifdef CONFIG_MAC80211_DEBUGFS |
820 | struct local_debugfsdentries { | |
4b7679a5 | 821 | struct dentry *rcdir; |
e9f207f0 JB |
822 | struct dentry *stations; |
823 | struct dentry *keys; | |
824 | } debugfs; | |
825 | #endif | |
f0706e82 JB |
826 | }; |
827 | ||
3e122be0 JB |
828 | static inline struct ieee80211_sub_if_data * |
829 | IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) | |
830 | { | |
3e122be0 JB |
831 | return netdev_priv(dev); |
832 | } | |
833 | ||
c951ad35 | 834 | /* this struct represents 802.11n's RA/TID combination along with our vif */ |
eadc8d9e | 835 | struct ieee80211_ra_tid { |
c951ad35 | 836 | struct ieee80211_vif *vif; |
eadc8d9e RR |
837 | u8 ra[ETH_ALEN]; |
838 | u16 tid; | |
839 | }; | |
840 | ||
ee385855 LCC |
841 | /* Parsed Information Elements */ |
842 | struct ieee802_11_elems { | |
43ac2ca3 JM |
843 | u8 *ie_start; |
844 | size_t total_len; | |
845 | ||
ee385855 LCC |
846 | /* pointers to IEs */ |
847 | u8 *ssid; | |
848 | u8 *supp_rates; | |
849 | u8 *fh_params; | |
850 | u8 *ds_params; | |
851 | u8 *cf_params; | |
e7ec86f5 | 852 | struct ieee80211_tim_ie *tim; |
ee385855 LCC |
853 | u8 *ibss_params; |
854 | u8 *challenge; | |
855 | u8 *wpa; | |
856 | u8 *rsn; | |
857 | u8 *erp_info; | |
858 | u8 *ext_supp_rates; | |
859 | u8 *wmm_info; | |
860 | u8 *wmm_param; | |
09914813 | 861 | struct ieee80211_ht_cap *ht_cap_elem; |
d9fe60de | 862 | struct ieee80211_ht_info *ht_info_elem; |
136cfa28 | 863 | struct ieee80211_meshconf_ie *mesh_config; |
ee385855 LCC |
864 | u8 *mesh_id; |
865 | u8 *peer_link; | |
866 | u8 *preq; | |
867 | u8 *prep; | |
868 | u8 *perr; | |
90a5e169 | 869 | struct ieee80211_rann_ie *rann; |
f2df3859 AK |
870 | u8 *ch_switch_elem; |
871 | u8 *country_elem; | |
872 | u8 *pwr_constr_elem; | |
873 | u8 *quiet_elem; /* first quite element */ | |
f797eb7e | 874 | u8 *timeout_int; |
ee385855 LCC |
875 | |
876 | /* length of them, respectively */ | |
877 | u8 ssid_len; | |
878 | u8 supp_rates_len; | |
879 | u8 fh_params_len; | |
880 | u8 ds_params_len; | |
881 | u8 cf_params_len; | |
882 | u8 tim_len; | |
883 | u8 ibss_params_len; | |
884 | u8 challenge_len; | |
885 | u8 wpa_len; | |
886 | u8 rsn_len; | |
887 | u8 erp_info_len; | |
888 | u8 ext_supp_rates_len; | |
889 | u8 wmm_info_len; | |
890 | u8 wmm_param_len; | |
ee385855 LCC |
891 | u8 mesh_id_len; |
892 | u8 peer_link_len; | |
893 | u8 preq_len; | |
894 | u8 prep_len; | |
895 | u8 perr_len; | |
f2df3859 AK |
896 | u8 ch_switch_elem_len; |
897 | u8 country_elem_len; | |
898 | u8 pwr_constr_elem_len; | |
899 | u8 quiet_elem_len; | |
900 | u8 num_of_quiet_elem; /* can be more the one */ | |
f797eb7e | 901 | u8 timeout_int_len; |
ee385855 LCC |
902 | }; |
903 | ||
f0706e82 JB |
904 | static inline struct ieee80211_local *hw_to_local( |
905 | struct ieee80211_hw *hw) | |
906 | { | |
907 | return container_of(hw, struct ieee80211_local, hw); | |
908 | } | |
909 | ||
910 | static inline struct ieee80211_hw *local_to_hw( | |
911 | struct ieee80211_local *local) | |
912 | { | |
913 | return &local->hw; | |
914 | } | |
915 | ||
f0706e82 | 916 | |
571ecf67 JB |
917 | static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) |
918 | { | |
919 | return compare_ether_addr(raddr, addr) == 0 || | |
920 | is_broadcast_ether_addr(raddr); | |
921 | } | |
922 | ||
923 | ||
e8975581 | 924 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); |
5cf121c3 | 925 | void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); |
9c6bd790 JB |
926 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
927 | u32 changed); | |
0d143fe1 | 928 | void ieee80211_configure_filter(struct ieee80211_local *local); |
46900298 | 929 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); |
f0706e82 | 930 | |
f38fd12f JB |
931 | extern bool ieee80211_disable_40mhz_24ghz; |
932 | ||
46900298 | 933 | /* STA code */ |
9c6bd790 | 934 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); |
77fdaa12 JB |
935 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, |
936 | struct cfg80211_auth_request *req); | |
937 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, | |
938 | struct cfg80211_assoc_request *req); | |
939 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, | |
667503dd JB |
940 | struct cfg80211_deauth_request *req, |
941 | void *cookie); | |
77fdaa12 | 942 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
667503dd JB |
943 | struct cfg80211_disassoc_request *req, |
944 | void *cookie); | |
46900298 | 945 | ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, |
f1d58c25 | 946 | struct sk_buff *skb); |
572e0012 KV |
947 | void ieee80211_send_pspoll(struct ieee80211_local *local, |
948 | struct ieee80211_sub_if_data *sdata); | |
10f644a4 JB |
949 | void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); |
950 | int ieee80211_max_network_latency(struct notifier_block *nb, | |
951 | unsigned long data, void *dummy); | |
cc32abd4 JB |
952 | void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, |
953 | struct ieee80211_channel_sw_ie *sw_elem, | |
954 | struct ieee80211_bss *bss); | |
5bb644a0 JB |
955 | void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata); |
956 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); | |
9c6bd790 | 957 | |
46900298 | 958 | /* IBSS code */ |
46900298 JB |
959 | void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); |
960 | void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); | |
961 | ieee80211_rx_result | |
f1d58c25 | 962 | ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); |
46900298 JB |
963 | struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, |
964 | u8 *bssid, u8 *addr, u32 supp_rates); | |
af8cdcd8 JB |
965 | int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, |
966 | struct cfg80211_ibss_params *params); | |
967 | int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); | |
5bb644a0 JB |
968 | void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata); |
969 | void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata); | |
46900298 | 970 | |
9c6bd790 | 971 | /* scan/BSS handling */ |
46900298 | 972 | void ieee80211_scan_work(struct work_struct *work); |
f3b85252 JB |
973 | int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, |
974 | const u8 *ssid, u8 ssid_len); | |
c2b13452 | 975 | int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, |
2a519311 | 976 | struct cfg80211_scan_request *req); |
5bb644a0 | 977 | void ieee80211_scan_cancel(struct ieee80211_local *local); |
c2b13452 | 978 | ieee80211_rx_result |
f1d58c25 | 979 | ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); |
9c6bd790 | 980 | |
0a51b27e | 981 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); |
c2b13452 | 982 | struct ieee80211_bss * |
98c8fccf JB |
983 | ieee80211_bss_info_update(struct ieee80211_local *local, |
984 | struct ieee80211_rx_status *rx_status, | |
985 | struct ieee80211_mgmt *mgmt, | |
986 | size_t len, | |
987 | struct ieee802_11_elems *elems, | |
2a519311 JB |
988 | struct ieee80211_channel *channel, |
989 | bool beacon); | |
c2b13452 | 990 | struct ieee80211_bss * |
5484e237 JB |
991 | ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, |
992 | u8 *ssid, u8 ssid_len); | |
98c8fccf | 993 | void ieee80211_rx_bss_put(struct ieee80211_local *local, |
c2b13452 | 994 | struct ieee80211_bss *bss); |
ee385855 | 995 | |
b203ffc3 JM |
996 | /* off-channel helpers */ |
997 | void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local); | |
998 | void ieee80211_offchannel_stop_station(struct ieee80211_local *local); | |
999 | void ieee80211_offchannel_return(struct ieee80211_local *local, | |
1000 | bool enable_beaconing); | |
1001 | ||
3e122be0 | 1002 | /* interface handling */ |
47846c9b JB |
1003 | int ieee80211_iface_init(void); |
1004 | void ieee80211_iface_exit(void); | |
3e122be0 | 1005 | int ieee80211_if_add(struct ieee80211_local *local, const char *name, |
05c914fe | 1006 | struct net_device **new_dev, enum nl80211_iftype type, |
ee385855 | 1007 | struct vif_params *params); |
f3947e2d | 1008 | int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, |
05c914fe | 1009 | enum nl80211_iftype type); |
f698d856 | 1010 | void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); |
75636525 | 1011 | void ieee80211_remove_interfaces(struct ieee80211_local *local); |
5cff20e6 JB |
1012 | u32 __ieee80211_recalc_idle(struct ieee80211_local *local); |
1013 | void ieee80211_recalc_idle(struct ieee80211_local *local); | |
f0706e82 | 1014 | |
9607e6b6 JB |
1015 | static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) |
1016 | { | |
1017 | return netif_running(sdata->dev); | |
1018 | } | |
1019 | ||
e2ebc74d | 1020 | /* tx handling */ |
e2ebc74d JB |
1021 | void ieee80211_clear_tx_pending(struct ieee80211_local *local); |
1022 | void ieee80211_tx_pending(unsigned long data); | |
d0cf9c0d SH |
1023 | netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, |
1024 | struct net_device *dev); | |
1025 | netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, | |
1026 | struct net_device *dev); | |
e2ebc74d | 1027 | |
fe7a5d5c JB |
1028 | /* |
1029 | * radiotap header for status frames | |
1030 | */ | |
1031 | struct ieee80211_tx_status_rtap_hdr { | |
1032 | struct ieee80211_radiotap_header hdr; | |
1033 | u8 rate; | |
1034 | u8 padding_for_rate; | |
1035 | __le16 tx_flags; | |
1036 | u8 data_retries; | |
1037 | } __attribute__ ((packed)); | |
1038 | ||
1039 | ||
de1ede7a | 1040 | /* HT */ |
ae5eb026 JB |
1041 | void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, |
1042 | struct ieee80211_ht_cap *ht_cap_ie, | |
d9fe60de | 1043 | struct ieee80211_sta_ht_cap *ht_cap); |
de1ede7a | 1044 | void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); |
b8695a8f JB |
1045 | void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, |
1046 | const u8 *da, u16 tid, | |
1047 | u16 initiator, u16 reason_code); | |
0f78231b JB |
1048 | int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, |
1049 | enum ieee80211_smps_mode smps, const u8 *da, | |
1050 | const u8 *bssid); | |
de1ede7a JB |
1051 | |
1052 | void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, | |
1053 | u16 tid, u16 initiator, u16 reason); | |
849b7967 JB |
1054 | void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
1055 | u16 initiator, u16 reason); | |
2dace10e | 1056 | void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta); |
de1ede7a JB |
1057 | void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, |
1058 | struct sta_info *sta, | |
1059 | struct ieee80211_mgmt *mgmt, size_t len); | |
1060 | void ieee80211_process_addba_resp(struct ieee80211_local *local, | |
1061 | struct sta_info *sta, | |
1062 | struct ieee80211_mgmt *mgmt, | |
1063 | size_t len); | |
1064 | void ieee80211_process_addba_request(struct ieee80211_local *local, | |
1065 | struct sta_info *sta, | |
1066 | struct ieee80211_mgmt *mgmt, | |
1067 | size_t len); | |
1068 | ||
849b7967 JB |
1069 | int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
1070 | enum ieee80211_back_parties initiator); | |
827d42c9 JB |
1071 | int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
1072 | enum ieee80211_back_parties initiator); | |
849b7967 | 1073 | |
39192c0b JB |
1074 | /* Spectrum management */ |
1075 | void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, | |
1076 | struct ieee80211_mgmt *mgmt, | |
1077 | size_t len); | |
1078 | ||
f2753ddb JB |
1079 | /* Suspend/resume and hw reconfiguration */ |
1080 | int ieee80211_reconfig(struct ieee80211_local *local); | |
84f6a01c | 1081 | void ieee80211_stop_device(struct ieee80211_local *local); |
f2753ddb | 1082 | |
827b1fb4 | 1083 | #ifdef CONFIG_PM |
665af4fc | 1084 | int __ieee80211_suspend(struct ieee80211_hw *hw); |
f2753ddb JB |
1085 | |
1086 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) | |
1087 | { | |
1088 | return ieee80211_reconfig(hw_to_local(hw)); | |
1089 | } | |
827b1fb4 JB |
1090 | #else |
1091 | static inline int __ieee80211_suspend(struct ieee80211_hw *hw) | |
1092 | { | |
1093 | return 0; | |
1094 | } | |
f2753ddb | 1095 | |
827b1fb4 JB |
1096 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) |
1097 | { | |
1098 | return 0; | |
1099 | } | |
1100 | #endif | |
665af4fc | 1101 | |
c2d1560a JB |
1102 | /* utility functions/constants */ |
1103 | extern void *mac80211_wiphy_privid; /* for wiphy privid */ | |
71364716 | 1104 | u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, |
05c914fe | 1105 | enum nl80211_iftype type); |
c2d1560a JB |
1106 | int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, |
1107 | int rate, int erp, int short_preamble); | |
f698d856 | 1108 | void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, |
e6d6e342 JB |
1109 | struct ieee80211_hdr *hdr, const u8 *tsc, |
1110 | gfp_t gfp); | |
5825fe10 | 1111 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); |
62ae67be | 1112 | void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); |
9c6bd790 JB |
1113 | void ieee802_11_parse_elems(u8 *start, size_t len, |
1114 | struct ieee802_11_elems *elems); | |
d91f36db JB |
1115 | u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, |
1116 | struct ieee802_11_elems *elems, | |
1117 | u64 filter, u32 crc); | |
881d948c | 1118 | u32 ieee80211_mandatory_rates(struct ieee80211_local *local, |
96dd22ac | 1119 | enum ieee80211_band band); |
f0706e82 | 1120 | |
520eb820 KV |
1121 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work); |
1122 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work); | |
1123 | void ieee80211_dynamic_ps_timer(unsigned long data); | |
a97b77b9 VN |
1124 | void ieee80211_send_nullfunc(struct ieee80211_local *local, |
1125 | struct ieee80211_sub_if_data *sdata, | |
1126 | int powersave); | |
3cf335d5 KV |
1127 | void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, |
1128 | struct ieee80211_hdr *hdr); | |
04de8381 | 1129 | void ieee80211_beacon_loss_work(struct work_struct *work); |
520eb820 | 1130 | |
ce7c9111 KV |
1131 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
1132 | enum queue_stop_reason reason); | |
1133 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, | |
1134 | enum queue_stop_reason reason); | |
96f5e66e JB |
1135 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
1136 | enum queue_stop_reason reason); | |
1137 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, | |
1138 | enum queue_stop_reason reason); | |
8f77f384 JB |
1139 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
1140 | struct sk_buff *skb); | |
1141 | int ieee80211_add_pending_skbs(struct ieee80211_local *local, | |
1142 | struct sk_buff_head *skbs); | |
ce7c9111 | 1143 | |
46900298 JB |
1144 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
1145 | u16 transaction, u16 auth_alg, | |
fffd0934 JB |
1146 | u8 *extra, size_t extra_len, const u8 *bssid, |
1147 | const u8 *key, u8 key_len, u8 key_idx); | |
de95a54b | 1148 | int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, |
4d36ec58 JB |
1149 | const u8 *ie, size_t ie_len, |
1150 | enum ieee80211_band band); | |
46900298 | 1151 | void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, |
de95a54b JB |
1152 | const u8 *ssid, size_t ssid_len, |
1153 | const u8 *ie, size_t ie_len); | |
46900298 JB |
1154 | |
1155 | void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, | |
1156 | const size_t supp_rates_len, | |
1157 | const u8 *supp_rates); | |
1158 | u32 ieee80211_sta_get_rates(struct ieee80211_local *local, | |
1159 | struct ieee802_11_elems *elems, | |
1160 | enum ieee80211_band band); | |
0f78231b JB |
1161 | int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, |
1162 | enum ieee80211_smps_mode smps_mode); | |
1163 | void ieee80211_recalc_smps(struct ieee80211_local *local, | |
1164 | struct ieee80211_sub_if_data *forsdata); | |
46900298 | 1165 | |
8e664fb3 JB |
1166 | size_t ieee80211_ie_split(const u8 *ies, size_t ielen, |
1167 | const u8 *ids, int n_ids, size_t offset); | |
1168 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); | |
1169 | ||
af6b6374 JB |
1170 | /* internal work items */ |
1171 | void ieee80211_work_init(struct ieee80211_local *local); | |
1172 | void ieee80211_add_work(struct ieee80211_work *wk); | |
1173 | void free_work(struct ieee80211_work *wk); | |
1174 | void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata); | |
1175 | ieee80211_rx_result ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data *sdata, | |
1176 | struct sk_buff *skb); | |
b8bc4b0a JB |
1177 | int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, |
1178 | struct ieee80211_channel *chan, | |
1179 | enum nl80211_channel_type channel_type, | |
1180 | unsigned int duration, u64 *cookie); | |
1181 | int ieee80211_wk_cancel_remain_on_channel( | |
1182 | struct ieee80211_sub_if_data *sdata, u64 cookie); | |
af6b6374 | 1183 | |
f4ea83dd | 1184 | #ifdef CONFIG_MAC80211_NOINLINE |
d9e8a70f JB |
1185 | #define debug_noinline noinline |
1186 | #else | |
1187 | #define debug_noinline | |
1188 | #endif | |
1189 | ||
f0706e82 | 1190 | #endif /* IEEE80211_I_H */ |