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1 | #ifndef __NET_CFG80211_H |
2 | #define __NET_CFG80211_H |
3 | /* |
4 | * 802.11 device and configuration interface |
5 | * |
6 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License version 2 as |
10 | * published by the Free Software Foundation. |
11 | */ |
12 | |
13 | #include <linux/netdevice.h> |
14 | #include <linux/debugfs.h> |
15 | #include <linux/list.h> |
16 | #include <linux/bug.h> |
17 | #include <linux/netlink.h> |
18 | #include <linux/skbuff.h> |
19 | #include <linux/nl80211.h> |
20 | #include <linux/if_ether.h> |
21 | #include <linux/ieee80211.h> |
22 | #include <linux/net.h> |
23 | #include <net/regulatory.h> |
24 | |
25 | /** |
26 | * DOC: Introduction |
27 | * |
28 | * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges |
29 | * userspace and drivers, and offers some utility functionality associated |
30 | * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used |
31 | * by all modern wireless drivers in Linux, so that they offer a consistent |
32 | * API through nl80211. For backward compatibility, cfg80211 also offers |
33 | * wireless extensions to userspace, but hides them from drivers completely. |
34 | * |
35 | * Additionally, cfg80211 contains code to help enforce regulatory spectrum |
36 | * use restrictions. |
37 | */ |
38 | |
39 | |
40 | /** |
41 | * DOC: Device registration |
42 | * |
43 | * In order for a driver to use cfg80211, it must register the hardware device |
44 | * with cfg80211. This happens through a number of hardware capability structs |
45 | * described below. |
46 | * |
47 | * The fundamental structure for each device is the 'wiphy', of which each |
48 | * instance describes a physical wireless device connected to the system. Each |
49 | * such wiphy can have zero, one, or many virtual interfaces associated with |
50 | * it, which need to be identified as such by pointing the network interface's |
51 | * @ieee80211_ptr pointer to a &struct wireless_dev which further describes |
52 | * the wireless part of the interface, normally this struct is embedded in the |
53 | * network interface's private data area. Drivers can optionally allow creating |
54 | * or destroying virtual interfaces on the fly, but without at least one or the |
55 | * ability to create some the wireless device isn't useful. |
56 | * |
57 | * Each wiphy structure contains device capability information, and also has |
58 | * a pointer to the various operations the driver offers. The definitions and |
59 | * structures here describe these capabilities in detail. |
60 | */ |
61 | |
62 | struct wiphy; |
63 | |
64 | /* |
65 | * wireless hardware capability structures |
66 | */ |
67 | |
68 | /** |
69 | * enum ieee80211_band - supported frequency bands |
70 | * |
71 | * The bands are assigned this way because the supported |
72 | * bitrates differ in these bands. |
73 | * |
74 | * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band |
75 | * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) |
76 | * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz) |
77 | * @IEEE80211_NUM_BANDS: number of defined bands |
78 | */ |
79 | enum ieee80211_band { |
80 | IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, |
81 | IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, |
82 | IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ, |
83 | |
84 | /* keep last */ |
85 | IEEE80211_NUM_BANDS |
86 | }; |
87 | |
88 | /** |
89 | * enum ieee80211_channel_flags - channel flags |
90 | * |
91 | * Channel flags set by the regulatory control code. |
92 | * |
93 | * @IEEE80211_CHAN_DISABLED: This channel is disabled. |
94 | * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted |
95 | * on this channel. |
96 | * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. |
97 | * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. |
98 | * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel |
99 | * is not permitted. |
100 | * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel |
101 | * is not permitted. |
102 | * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel. |
103 | * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band, |
104 | * this flag indicates that an 80 MHz channel cannot use this |
105 | * channel as the control or any of the secondary channels. |
106 | * This may be due to the driver or due to regulatory bandwidth |
107 | * restrictions. |
108 | * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band, |
109 | * this flag indicates that an 160 MHz channel cannot use this |
110 | * channel as the control or any of the secondary channels. |
111 | * This may be due to the driver or due to regulatory bandwidth |
112 | * restrictions. |
113 | */ |
114 | enum ieee80211_channel_flags { |
115 | IEEE80211_CHAN_DISABLED = 1<<0, |
116 | IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, |
117 | IEEE80211_CHAN_NO_IBSS = 1<<2, |
118 | IEEE80211_CHAN_RADAR = 1<<3, |
119 | IEEE80211_CHAN_NO_HT40PLUS = 1<<4, |
120 | IEEE80211_CHAN_NO_HT40MINUS = 1<<5, |
121 | IEEE80211_CHAN_NO_OFDM = 1<<6, |
122 | IEEE80211_CHAN_NO_80MHZ = 1<<7, |
123 | IEEE80211_CHAN_NO_160MHZ = 1<<8, |
124 | }; |
125 | |
126 | #define IEEE80211_CHAN_NO_HT40 \ |
127 | (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) |
128 | |
129 | #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000 |
130 | #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000) |
131 | |
132 | /** |
133 | * struct ieee80211_channel - channel definition |
134 | * |
135 | * This structure describes a single channel for use |
136 | * with cfg80211. |
137 | * |
138 | * @center_freq: center frequency in MHz |
139 | * @hw_value: hardware-specific value for the channel |
140 | * @flags: channel flags from &enum ieee80211_channel_flags. |
141 | * @orig_flags: channel flags at registration time, used by regulatory |
142 | * code to support devices with additional restrictions |
143 | * @band: band this channel belongs to. |
144 | * @max_antenna_gain: maximum antenna gain in dBi |
145 | * @max_power: maximum transmission power (in dBm) |
146 | * @max_reg_power: maximum regulatory transmission power (in dBm) |
147 | * @beacon_found: helper to regulatory code to indicate when a beacon |
148 | * has been found on this channel. Use regulatory_hint_found_beacon() |
149 | * to enable this, this is useful only on 5 GHz band. |
150 | * @orig_mag: internal use |
151 | * @orig_mpwr: internal use |
152 | * @dfs_state: current state of this channel. Only relevant if radar is required |
153 | * on this channel. |
154 | * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered. |
155 | */ |
156 | struct ieee80211_channel { |
157 | enum ieee80211_band band; |
158 | u16 center_freq; |
159 | u16 hw_value; |
160 | u32 flags; |
161 | int max_antenna_gain; |
162 | int max_power; |
163 | int max_reg_power; |
164 | bool beacon_found; |
165 | u32 orig_flags; |
166 | int orig_mag, orig_mpwr; |
167 | enum nl80211_dfs_state dfs_state; |
168 | unsigned long dfs_state_entered; |
169 | }; |
170 | |
171 | /** |
172 | * enum ieee80211_rate_flags - rate flags |
173 | * |
174 | * Hardware/specification flags for rates. These are structured |
175 | * in a way that allows using the same bitrate structure for |
176 | * different bands/PHY modes. |
177 | * |
178 | * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short |
179 | * preamble on this bitrate; only relevant in 2.4GHz band and |
180 | * with CCK rates. |
181 | * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate |
182 | * when used with 802.11a (on the 5 GHz band); filled by the |
183 | * core code when registering the wiphy. |
184 | * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate |
185 | * when used with 802.11b (on the 2.4 GHz band); filled by the |
186 | * core code when registering the wiphy. |
187 | * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate |
188 | * when used with 802.11g (on the 2.4 GHz band); filled by the |
189 | * core code when registering the wiphy. |
190 | * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. |
191 | * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode |
192 | * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode |
193 | */ |
194 | enum ieee80211_rate_flags { |
195 | IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, |
196 | IEEE80211_RATE_MANDATORY_A = 1<<1, |
197 | IEEE80211_RATE_MANDATORY_B = 1<<2, |
198 | IEEE80211_RATE_MANDATORY_G = 1<<3, |
199 | IEEE80211_RATE_ERP_G = 1<<4, |
200 | IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5, |
201 | IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6, |
202 | }; |
203 | |
204 | /** |
205 | * struct ieee80211_rate - bitrate definition |
206 | * |
207 | * This structure describes a bitrate that an 802.11 PHY can |
208 | * operate with. The two values @hw_value and @hw_value_short |
209 | * are only for driver use when pointers to this structure are |
210 | * passed around. |
211 | * |
212 | * @flags: rate-specific flags |
213 | * @bitrate: bitrate in units of 100 Kbps |
214 | * @hw_value: driver/hardware value for this rate |
215 | * @hw_value_short: driver/hardware value for this rate when |
216 | * short preamble is used |
217 | */ |
218 | struct ieee80211_rate { |
219 | u32 flags; |
220 | u16 bitrate; |
221 | u16 hw_value, hw_value_short; |
222 | }; |
223 | |
224 | /** |
225 | * struct ieee80211_sta_ht_cap - STA's HT capabilities |
226 | * |
227 | * This structure describes most essential parameters needed |
228 | * to describe 802.11n HT capabilities for an STA. |
229 | * |
230 | * @ht_supported: is HT supported by the STA |
231 | * @cap: HT capabilities map as described in 802.11n spec |
232 | * @ampdu_factor: Maximum A-MPDU length factor |
233 | * @ampdu_density: Minimum A-MPDU spacing |
234 | * @mcs: Supported MCS rates |
235 | */ |
236 | struct ieee80211_sta_ht_cap { |
237 | u16 cap; /* use IEEE80211_HT_CAP_ */ |
238 | bool ht_supported; |
239 | u8 ampdu_factor; |
240 | u8 ampdu_density; |
241 | struct ieee80211_mcs_info mcs; |
242 | }; |
243 | |
244 | /** |
245 | * struct ieee80211_sta_vht_cap - STA's VHT capabilities |
246 | * |
247 | * This structure describes most essential parameters needed |
248 | * to describe 802.11ac VHT capabilities for an STA. |
249 | * |
250 | * @vht_supported: is VHT supported by the STA |
251 | * @cap: VHT capabilities map as described in 802.11ac spec |
252 | * @vht_mcs: Supported VHT MCS rates |
253 | */ |
254 | struct ieee80211_sta_vht_cap { |
255 | bool vht_supported; |
256 | u32 cap; /* use IEEE80211_VHT_CAP_ */ |
257 | struct ieee80211_vht_mcs_info vht_mcs; |
258 | }; |
259 | |
260 | /** |
261 | * struct ieee80211_supported_band - frequency band definition |
262 | * |
263 | * This structure describes a frequency band a wiphy |
264 | * is able to operate in. |
265 | * |
266 | * @channels: Array of channels the hardware can operate in |
267 | * in this band. |
268 | * @band: the band this structure represents |
269 | * @n_channels: Number of channels in @channels |
270 | * @bitrates: Array of bitrates the hardware can operate with |
271 | * in this band. Must be sorted to give a valid "supported |
272 | * rates" IE, i.e. CCK rates first, then OFDM. |
273 | * @n_bitrates: Number of bitrates in @bitrates |
274 | * @ht_cap: HT capabilities in this band |
275 | * @vht_cap: VHT capabilities in this band |
276 | */ |
277 | struct ieee80211_supported_band { |
278 | struct ieee80211_channel *channels; |
279 | struct ieee80211_rate *bitrates; |
280 | enum ieee80211_band band; |
281 | int n_channels; |
282 | int n_bitrates; |
283 | struct ieee80211_sta_ht_cap ht_cap; |
284 | struct ieee80211_sta_vht_cap vht_cap; |
285 | }; |
286 | |
287 | /* |
288 | * Wireless hardware/device configuration structures and methods |
289 | */ |
290 | |
291 | /** |
292 | * DOC: Actions and configuration |
293 | * |
294 | * Each wireless device and each virtual interface offer a set of configuration |
295 | * operations and other actions that are invoked by userspace. Each of these |
296 | * actions is described in the operations structure, and the parameters these |
297 | * operations use are described separately. |
298 | * |
299 | * Additionally, some operations are asynchronous and expect to get status |
300 | * information via some functions that drivers need to call. |
301 | * |
302 | * Scanning and BSS list handling with its associated functionality is described |
303 | * in a separate chapter. |
304 | */ |
305 | |
306 | /** |
307 | * struct vif_params - describes virtual interface parameters |
308 | * @use_4addr: use 4-address frames |
309 | * @macaddr: address to use for this virtual interface. This will only |
310 | * be used for non-netdevice interfaces. If this parameter is set |
311 | * to zero address the driver may determine the address as needed. |
312 | */ |
313 | struct vif_params { |
314 | int use_4addr; |
315 | u8 macaddr[ETH_ALEN]; |
316 | }; |
317 | |
318 | /** |
319 | * struct key_params - key information |
320 | * |
321 | * Information about a key |
322 | * |
323 | * @key: key material |
324 | * @key_len: length of key material |
325 | * @cipher: cipher suite selector |
326 | * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used |
327 | * with the get_key() callback, must be in little endian, |
328 | * length given by @seq_len. |
329 | * @seq_len: length of @seq. |
330 | */ |
331 | struct key_params { |
332 | u8 *key; |
333 | u8 *seq; |
334 | int key_len; |
335 | int seq_len; |
336 | u32 cipher; |
337 | }; |
338 | |
339 | /** |
340 | * struct cfg80211_chan_def - channel definition |
341 | * @chan: the (control) channel |
342 | * @width: channel width |
343 | * @center_freq1: center frequency of first segment |
344 | * @center_freq2: center frequency of second segment |
345 | * (only with 80+80 MHz) |
346 | */ |
347 | struct cfg80211_chan_def { |
348 | struct ieee80211_channel *chan; |
349 | enum nl80211_chan_width width; |
350 | u32 center_freq1; |
351 | u32 center_freq2; |
352 | }; |
353 | |
354 | /** |
355 | * cfg80211_get_chandef_type - return old channel type from chandef |
356 | * @chandef: the channel definition |
357 | * |
358 | * Return: The old channel type (NOHT, HT20, HT40+/-) from a given |
359 | * chandef, which must have a bandwidth allowing this conversion. |
360 | */ |
361 | static inline enum nl80211_channel_type |
362 | cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef) |
363 | { |
364 | switch (chandef->width) { |
365 | case NL80211_CHAN_WIDTH_20_NOHT: |
366 | return NL80211_CHAN_NO_HT; |
367 | case NL80211_CHAN_WIDTH_20: |
368 | return NL80211_CHAN_HT20; |
369 | case NL80211_CHAN_WIDTH_40: |
370 | if (chandef->center_freq1 > chandef->chan->center_freq) |
371 | return NL80211_CHAN_HT40PLUS; |
372 | return NL80211_CHAN_HT40MINUS; |
373 | default: |
374 | WARN_ON(1); |
375 | return NL80211_CHAN_NO_HT; |
376 | } |
377 | } |
378 | |
379 | /** |
380 | * cfg80211_chandef_create - create channel definition using channel type |
381 | * @chandef: the channel definition struct to fill |
382 | * @channel: the control channel |
383 | * @chantype: the channel type |
384 | * |
385 | * Given a channel type, create a channel definition. |
386 | */ |
387 | void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, |
388 | struct ieee80211_channel *channel, |
389 | enum nl80211_channel_type chantype); |
390 | |
391 | /** |
392 | * cfg80211_chandef_identical - check if two channel definitions are identical |
393 | * @chandef1: first channel definition |
394 | * @chandef2: second channel definition |
395 | * |
396 | * Return: %true if the channels defined by the channel definitions are |
397 | * identical, %false otherwise. |
398 | */ |
399 | static inline bool |
400 | cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1, |
401 | const struct cfg80211_chan_def *chandef2) |
402 | { |
403 | return (chandef1->chan == chandef2->chan && |
404 | chandef1->width == chandef2->width && |
405 | chandef1->center_freq1 == chandef2->center_freq1 && |
406 | chandef1->center_freq2 == chandef2->center_freq2); |
407 | } |
408 | |
409 | /** |
410 | * cfg80211_chandef_compatible - check if two channel definitions are compatible |
411 | * @chandef1: first channel definition |
412 | * @chandef2: second channel definition |
413 | * |
414 | * Return: %NULL if the given channel definitions are incompatible, |
415 | * chandef1 or chandef2 otherwise. |
416 | */ |
417 | const struct cfg80211_chan_def * |
418 | cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, |
419 | const struct cfg80211_chan_def *chandef2); |
420 | |
421 | /** |
422 | * cfg80211_chandef_valid - check if a channel definition is valid |
423 | * @chandef: the channel definition to check |
424 | * Return: %true if the channel definition is valid. %false otherwise. |
425 | */ |
426 | bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef); |
427 | |
428 | /** |
429 | * cfg80211_chandef_usable - check if secondary channels can be used |
430 | * @wiphy: the wiphy to validate against |
431 | * @chandef: the channel definition to check |
432 | * @prohibited_flags: the regulatory channel flags that must not be set |
433 | * Return: %true if secondary channels are usable. %false otherwise. |
434 | */ |
435 | bool cfg80211_chandef_usable(struct wiphy *wiphy, |
436 | const struct cfg80211_chan_def *chandef, |
437 | u32 prohibited_flags); |
438 | |
439 | /** |
440 | * cfg80211_chandef_dfs_required - checks if radar detection is required |
441 | * @wiphy: the wiphy to validate against |
442 | * @chandef: the channel definition to check |
443 | * Return: 1 if radar detection is required, 0 if it is not, < 0 on error |
444 | */ |
445 | int cfg80211_chandef_dfs_required(struct wiphy *wiphy, |
446 | const struct cfg80211_chan_def *chandef); |
447 | |
448 | /** |
449 | * ieee80211_chandef_rate_flags - returns rate flags for a channel |
450 | * |
451 | * In some channel types, not all rates may be used - for example CCK |
452 | * rates may not be used in 5/10 MHz channels. |
453 | * |
454 | * @chandef: channel definition for the channel |
455 | * |
456 | * Returns: rate flags which apply for this channel |
457 | */ |
458 | static inline enum ieee80211_rate_flags |
459 | ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef) |
460 | { |
461 | switch (chandef->width) { |
462 | case NL80211_CHAN_WIDTH_5: |
463 | return IEEE80211_RATE_SUPPORTS_5MHZ; |
464 | case NL80211_CHAN_WIDTH_10: |
465 | return IEEE80211_RATE_SUPPORTS_10MHZ; |
466 | default: |
467 | break; |
468 | } |
469 | return 0; |
470 | } |
471 | |
472 | /** |
473 | * ieee80211_chandef_max_power - maximum transmission power for the chandef |
474 | * |
475 | * In some regulations, the transmit power may depend on the configured channel |
476 | * bandwidth which may be defined as dBm/MHz. This function returns the actual |
477 | * max_power for non-standard (20 MHz) channels. |
478 | * |
479 | * @chandef: channel definition for the channel |
480 | * |
481 | * Returns: maximum allowed transmission power in dBm for the chandef |
482 | */ |
483 | static inline int |
484 | ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) |
485 | { |
486 | switch (chandef->width) { |
487 | case NL80211_CHAN_WIDTH_5: |
488 | return min(chandef->chan->max_reg_power - 6, |
489 | chandef->chan->max_power); |
490 | case NL80211_CHAN_WIDTH_10: |
491 | return min(chandef->chan->max_reg_power - 3, |
492 | chandef->chan->max_power); |
493 | default: |
494 | break; |
495 | } |
496 | return chandef->chan->max_power; |
497 | } |
498 | |
499 | /** |
500 | * enum survey_info_flags - survey information flags |
501 | * |
502 | * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in |
503 | * @SURVEY_INFO_IN_USE: channel is currently being used |
504 | * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in |
505 | * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in |
506 | * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in |
507 | * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in |
508 | * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in |
509 | * |
510 | * Used by the driver to indicate which info in &struct survey_info |
511 | * it has filled in during the get_survey(). |
512 | */ |
513 | enum survey_info_flags { |
514 | SURVEY_INFO_NOISE_DBM = 1<<0, |
515 | SURVEY_INFO_IN_USE = 1<<1, |
516 | SURVEY_INFO_CHANNEL_TIME = 1<<2, |
517 | SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, |
518 | SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, |
519 | SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, |
520 | SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, |
521 | }; |
522 | |
523 | /** |
524 | * struct survey_info - channel survey response |
525 | * |
526 | * @channel: the channel this survey record reports, mandatory |
527 | * @filled: bitflag of flags from &enum survey_info_flags |
528 | * @noise: channel noise in dBm. This and all following fields are |
529 | * optional |
530 | * @channel_time: amount of time in ms the radio spent on the channel |
531 | * @channel_time_busy: amount of time the primary channel was sensed busy |
532 | * @channel_time_ext_busy: amount of time the extension channel was sensed busy |
533 | * @channel_time_rx: amount of time the radio spent receiving data |
534 | * @channel_time_tx: amount of time the radio spent transmitting data |
535 | * |
536 | * Used by dump_survey() to report back per-channel survey information. |
537 | * |
538 | * This structure can later be expanded with things like |
539 | * channel duty cycle etc. |
540 | */ |
541 | struct survey_info { |
542 | struct ieee80211_channel *channel; |
543 | u64 channel_time; |
544 | u64 channel_time_busy; |
545 | u64 channel_time_ext_busy; |
546 | u64 channel_time_rx; |
547 | u64 channel_time_tx; |
548 | u32 filled; |
549 | s8 noise; |
550 | }; |
551 | |
552 | /** |
553 | * struct cfg80211_crypto_settings - Crypto settings |
554 | * @wpa_versions: indicates which, if any, WPA versions are enabled |
555 | * (from enum nl80211_wpa_versions) |
556 | * @cipher_group: group key cipher suite (or 0 if unset) |
557 | * @n_ciphers_pairwise: number of AP supported unicast ciphers |
558 | * @ciphers_pairwise: unicast key cipher suites |
559 | * @n_akm_suites: number of AKM suites |
560 | * @akm_suites: AKM suites |
561 | * @control_port: Whether user space controls IEEE 802.1X port, i.e., |
562 | * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is |
563 | * required to assume that the port is unauthorized until authorized by |
564 | * user space. Otherwise, port is marked authorized by default. |
565 | * @control_port_ethertype: the control port protocol that should be |
566 | * allowed through even on unauthorized ports |
567 | * @control_port_no_encrypt: TRUE to prevent encryption of control port |
568 | * protocol frames. |
569 | */ |
570 | struct cfg80211_crypto_settings { |
571 | u32 wpa_versions; |
572 | u32 cipher_group; |
573 | int n_ciphers_pairwise; |
574 | u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; |
575 | int n_akm_suites; |
576 | u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; |
577 | bool control_port; |
578 | __be16 control_port_ethertype; |
579 | bool control_port_no_encrypt; |
580 | }; |
581 | |
582 | /** |
583 | * struct cfg80211_beacon_data - beacon data |
584 | * @head: head portion of beacon (before TIM IE) |
585 | * or %NULL if not changed |
586 | * @tail: tail portion of beacon (after TIM IE) |
587 | * or %NULL if not changed |
588 | * @head_len: length of @head |
589 | * @tail_len: length of @tail |
590 | * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL |
591 | * @beacon_ies_len: length of beacon_ies in octets |
592 | * @proberesp_ies: extra information element(s) to add into Probe Response |
593 | * frames or %NULL |
594 | * @proberesp_ies_len: length of proberesp_ies in octets |
595 | * @assocresp_ies: extra information element(s) to add into (Re)Association |
596 | * Response frames or %NULL |
597 | * @assocresp_ies_len: length of assocresp_ies in octets |
598 | * @probe_resp_len: length of probe response template (@probe_resp) |
599 | * @probe_resp: probe response template (AP mode only) |
600 | */ |
601 | struct cfg80211_beacon_data { |
602 | const u8 *head, *tail; |
603 | const u8 *beacon_ies; |
604 | const u8 *proberesp_ies; |
605 | const u8 *assocresp_ies; |
606 | const u8 *probe_resp; |
607 | |
608 | size_t head_len, tail_len; |
609 | size_t beacon_ies_len; |
610 | size_t proberesp_ies_len; |
611 | size_t assocresp_ies_len; |
612 | size_t probe_resp_len; |
613 | }; |
614 | |
615 | struct mac_address { |
616 | u8 addr[ETH_ALEN]; |
617 | }; |
618 | |
619 | /** |
620 | * struct cfg80211_acl_data - Access control list data |
621 | * |
622 | * @acl_policy: ACL policy to be applied on the station's |
623 | * entry specified by mac_addr |
624 | * @n_acl_entries: Number of MAC address entries passed |
625 | * @mac_addrs: List of MAC addresses of stations to be used for ACL |
626 | */ |
627 | struct cfg80211_acl_data { |
628 | enum nl80211_acl_policy acl_policy; |
629 | int n_acl_entries; |
630 | |
631 | /* Keep it last */ |
632 | struct mac_address mac_addrs[]; |
633 | }; |
634 | |
635 | /** |
636 | * struct cfg80211_ap_settings - AP configuration |
637 | * |
638 | * Used to configure an AP interface. |
639 | * |
640 | * @chandef: defines the channel to use |
641 | * @beacon: beacon data |
642 | * @beacon_interval: beacon interval |
643 | * @dtim_period: DTIM period |
644 | * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from |
645 | * user space) |
646 | * @ssid_len: length of @ssid |
647 | * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames |
648 | * @crypto: crypto settings |
649 | * @privacy: the BSS uses privacy |
650 | * @auth_type: Authentication type (algorithm) |
651 | * @inactivity_timeout: time in seconds to determine station's inactivity. |
652 | * @p2p_ctwindow: P2P CT Window |
653 | * @p2p_opp_ps: P2P opportunistic PS |
654 | * @acl: ACL configuration used by the drivers which has support for |
655 | * MAC address based access control |
656 | * @radar_required: set if radar detection is required |
657 | */ |
658 | struct cfg80211_ap_settings { |
659 | struct cfg80211_chan_def chandef; |
660 | |
661 | struct cfg80211_beacon_data beacon; |
662 | |
663 | int beacon_interval, dtim_period; |
664 | const u8 *ssid; |
665 | size_t ssid_len; |
666 | enum nl80211_hidden_ssid hidden_ssid; |
667 | struct cfg80211_crypto_settings crypto; |
668 | bool privacy; |
669 | enum nl80211_auth_type auth_type; |
670 | int inactivity_timeout; |
671 | u8 p2p_ctwindow; |
672 | bool p2p_opp_ps; |
673 | const struct cfg80211_acl_data *acl; |
674 | bool radar_required; |
675 | }; |
676 | |
677 | /** |
678 | * struct cfg80211_csa_settings - channel switch settings |
679 | * |
680 | * Used for channel switch |
681 | * |
682 | * @chandef: defines the channel to use after the switch |
683 | * @beacon_csa: beacon data while performing the switch |
684 | * @counter_offset_beacon: offset for the counter within the beacon (tail) |
685 | * @counter_offset_presp: offset for the counter within the probe response |
686 | * @beacon_after: beacon data to be used on the new channel |
687 | * @radar_required: whether radar detection is required on the new channel |
688 | * @block_tx: whether transmissions should be blocked while changing |
689 | * @count: number of beacons until switch |
690 | */ |
691 | struct cfg80211_csa_settings { |
692 | struct cfg80211_chan_def chandef; |
693 | struct cfg80211_beacon_data beacon_csa; |
694 | u16 counter_offset_beacon, counter_offset_presp; |
695 | struct cfg80211_beacon_data beacon_after; |
696 | bool radar_required; |
697 | bool block_tx; |
698 | u8 count; |
699 | }; |
700 | |
701 | /** |
702 | * enum station_parameters_apply_mask - station parameter values to apply |
703 | * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) |
704 | * @STATION_PARAM_APPLY_CAPABILITY: apply new capability |
705 | * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state |
706 | * |
707 | * Not all station parameters have in-band "no change" signalling, |
708 | * for those that don't these flags will are used. |
709 | */ |
710 | enum station_parameters_apply_mask { |
711 | STATION_PARAM_APPLY_UAPSD = BIT(0), |
712 | STATION_PARAM_APPLY_CAPABILITY = BIT(1), |
713 | STATION_PARAM_APPLY_PLINK_STATE = BIT(2), |
714 | }; |
715 | |
716 | /** |
717 | * struct station_parameters - station parameters |
718 | * |
719 | * Used to change and create a new station. |
720 | * |
721 | * @vlan: vlan interface station should belong to |
722 | * @supported_rates: supported rates in IEEE 802.11 format |
723 | * (or NULL for no change) |
724 | * @supported_rates_len: number of supported rates |
725 | * @sta_flags_mask: station flags that changed |
726 | * (bitmask of BIT(NL80211_STA_FLAG_...)) |
727 | * @sta_flags_set: station flags values |
728 | * (bitmask of BIT(NL80211_STA_FLAG_...)) |
729 | * @listen_interval: listen interval or -1 for no change |
730 | * @aid: AID or zero for no change |
731 | * @plink_action: plink action to take |
732 | * @plink_state: set the peer link state for a station |
733 | * @ht_capa: HT capabilities of station |
734 | * @vht_capa: VHT capabilities of station |
735 | * @uapsd_queues: bitmap of queues configured for uapsd. same format |
736 | * as the AC bitmap in the QoS info field |
737 | * @max_sp: max Service Period. same format as the MAX_SP in the |
738 | * QoS info field (but already shifted down) |
739 | * @sta_modify_mask: bitmap indicating which parameters changed |
740 | * (for those that don't have a natural "no change" value), |
741 | * see &enum station_parameters_apply_mask |
742 | * @local_pm: local link-specific mesh power save mode (no change when set |
743 | * to unknown) |
744 | * @capability: station capability |
745 | * @ext_capab: extended capabilities of the station |
746 | * @ext_capab_len: number of extended capabilities |
747 | * @supported_channels: supported channels in IEEE 802.11 format |
748 | * @supported_channels_len: number of supported channels |
749 | * @supported_oper_classes: supported oper classes in IEEE 802.11 format |
750 | * @supported_oper_classes_len: number of supported operating classes |
751 | */ |
752 | struct station_parameters { |
753 | const u8 *supported_rates; |
754 | struct net_device *vlan; |
755 | u32 sta_flags_mask, sta_flags_set; |
756 | u32 sta_modify_mask; |
757 | int listen_interval; |
758 | u16 aid; |
759 | u8 supported_rates_len; |
760 | u8 plink_action; |
761 | u8 plink_state; |
762 | const struct ieee80211_ht_cap *ht_capa; |
763 | const struct ieee80211_vht_cap *vht_capa; |
764 | u8 uapsd_queues; |
765 | u8 max_sp; |
766 | enum nl80211_mesh_power_mode local_pm; |
767 | u16 capability; |
768 | const u8 *ext_capab; |
769 | u8 ext_capab_len; |
770 | const u8 *supported_channels; |
771 | u8 supported_channels_len; |
772 | const u8 *supported_oper_classes; |
773 | u8 supported_oper_classes_len; |
774 | }; |
775 | |
776 | /** |
777 | * enum cfg80211_station_type - the type of station being modified |
778 | * @CFG80211_STA_AP_CLIENT: client of an AP interface |
779 | * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has |
780 | * the AP MLME in the device |
781 | * @CFG80211_STA_AP_STA: AP station on managed interface |
782 | * @CFG80211_STA_IBSS: IBSS station |
783 | * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry |
784 | * while TDLS setup is in progress, it moves out of this state when |
785 | * being marked authorized; use this only if TDLS with external setup is |
786 | * supported/used) |
787 | * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active |
788 | * entry that is operating, has been marked authorized by userspace) |
789 | * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed) |
790 | * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed) |
791 | */ |
792 | enum cfg80211_station_type { |
793 | CFG80211_STA_AP_CLIENT, |
794 | CFG80211_STA_AP_MLME_CLIENT, |
795 | CFG80211_STA_AP_STA, |
796 | CFG80211_STA_IBSS, |
797 | CFG80211_STA_TDLS_PEER_SETUP, |
798 | CFG80211_STA_TDLS_PEER_ACTIVE, |
799 | CFG80211_STA_MESH_PEER_KERNEL, |
800 | CFG80211_STA_MESH_PEER_USER, |
801 | }; |
802 | |
803 | /** |
804 | * cfg80211_check_station_change - validate parameter changes |
805 | * @wiphy: the wiphy this operates on |
806 | * @params: the new parameters for a station |
807 | * @statype: the type of station being modified |
808 | * |
809 | * Utility function for the @change_station driver method. Call this function |
810 | * with the appropriate station type looking up the station (and checking that |
811 | * it exists). It will verify whether the station change is acceptable, and if |
812 | * not will return an error code. Note that it may modify the parameters for |
813 | * backward compatibility reasons, so don't use them before calling this. |
814 | */ |
815 | int cfg80211_check_station_change(struct wiphy *wiphy, |
816 | struct station_parameters *params, |
817 | enum cfg80211_station_type statype); |
818 | |
819 | /** |
820 | * enum station_info_flags - station information flags |
821 | * |
822 | * Used by the driver to indicate which info in &struct station_info |
823 | * it has filled in during get_station() or dump_station(). |
824 | * |
825 | * @STATION_INFO_INACTIVE_TIME: @inactive_time filled |
826 | * @STATION_INFO_RX_BYTES: @rx_bytes filled |
827 | * @STATION_INFO_TX_BYTES: @tx_bytes filled |
828 | * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value |
829 | * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value |
830 | * @STATION_INFO_LLID: @llid filled |
831 | * @STATION_INFO_PLID: @plid filled |
832 | * @STATION_INFO_PLINK_STATE: @plink_state filled |
833 | * @STATION_INFO_SIGNAL: @signal filled |
834 | * @STATION_INFO_TX_BITRATE: @txrate fields are filled |
835 | * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) |
836 | * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value |
837 | * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value |
838 | * @STATION_INFO_TX_RETRIES: @tx_retries filled |
839 | * @STATION_INFO_TX_FAILED: @tx_failed filled |
840 | * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled |
841 | * @STATION_INFO_SIGNAL_AVG: @signal_avg filled |
842 | * @STATION_INFO_RX_BITRATE: @rxrate fields are filled |
843 | * @STATION_INFO_BSS_PARAM: @bss_param filled |
844 | * @STATION_INFO_CONNECTED_TIME: @connected_time filled |
845 | * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled |
846 | * @STATION_INFO_STA_FLAGS: @sta_flags filled |
847 | * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled |
848 | * @STATION_INFO_T_OFFSET: @t_offset filled |
849 | * @STATION_INFO_LOCAL_PM: @local_pm filled |
850 | * @STATION_INFO_PEER_PM: @peer_pm filled |
851 | * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled |
852 | * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled |
853 | * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled |
854 | */ |
855 | enum station_info_flags { |
856 | STATION_INFO_INACTIVE_TIME = 1<<0, |
857 | STATION_INFO_RX_BYTES = 1<<1, |
858 | STATION_INFO_TX_BYTES = 1<<2, |
859 | STATION_INFO_LLID = 1<<3, |
860 | STATION_INFO_PLID = 1<<4, |
861 | STATION_INFO_PLINK_STATE = 1<<5, |
862 | STATION_INFO_SIGNAL = 1<<6, |
863 | STATION_INFO_TX_BITRATE = 1<<7, |
864 | STATION_INFO_RX_PACKETS = 1<<8, |
865 | STATION_INFO_TX_PACKETS = 1<<9, |
866 | STATION_INFO_TX_RETRIES = 1<<10, |
867 | STATION_INFO_TX_FAILED = 1<<11, |
868 | STATION_INFO_RX_DROP_MISC = 1<<12, |
869 | STATION_INFO_SIGNAL_AVG = 1<<13, |
870 | STATION_INFO_RX_BITRATE = 1<<14, |
871 | STATION_INFO_BSS_PARAM = 1<<15, |
872 | STATION_INFO_CONNECTED_TIME = 1<<16, |
873 | STATION_INFO_ASSOC_REQ_IES = 1<<17, |
874 | STATION_INFO_STA_FLAGS = 1<<18, |
875 | STATION_INFO_BEACON_LOSS_COUNT = 1<<19, |
876 | STATION_INFO_T_OFFSET = 1<<20, |
877 | STATION_INFO_LOCAL_PM = 1<<21, |
878 | STATION_INFO_PEER_PM = 1<<22, |
879 | STATION_INFO_NONPEER_PM = 1<<23, |
880 | STATION_INFO_RX_BYTES64 = 1<<24, |
881 | STATION_INFO_TX_BYTES64 = 1<<25, |
882 | STATION_INFO_CHAIN_SIGNAL = 1<<26, |
883 | STATION_INFO_CHAIN_SIGNAL_AVG = 1<<27, |
884 | }; |
885 | |
886 | /** |
887 | * enum station_info_rate_flags - bitrate info flags |
888 | * |
889 | * Used by the driver to indicate the specific rate transmission |
890 | * type for 802.11n transmissions. |
891 | * |
892 | * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS |
893 | * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS |
894 | * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission |
895 | * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission |
896 | * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission |
897 | * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission |
898 | * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval |
899 | * @RATE_INFO_FLAGS_60G: 60GHz MCS |
900 | */ |
901 | enum rate_info_flags { |
902 | RATE_INFO_FLAGS_MCS = BIT(0), |
903 | RATE_INFO_FLAGS_VHT_MCS = BIT(1), |
904 | RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2), |
905 | RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3), |
906 | RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4), |
907 | RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5), |
908 | RATE_INFO_FLAGS_SHORT_GI = BIT(6), |
909 | RATE_INFO_FLAGS_60G = BIT(7), |
910 | }; |
911 | |
912 | /** |
913 | * struct rate_info - bitrate information |
914 | * |
915 | * Information about a receiving or transmitting bitrate |
916 | * |
917 | * @flags: bitflag of flags from &enum rate_info_flags |
918 | * @mcs: mcs index if struct describes a 802.11n bitrate |
919 | * @legacy: bitrate in 100kbit/s for 802.11abg |
920 | * @nss: number of streams (VHT only) |
921 | */ |
922 | struct rate_info { |
923 | u8 flags; |
924 | u8 mcs; |
925 | u16 legacy; |
926 | u8 nss; |
927 | }; |
928 | |
929 | /** |
930 | * enum station_info_rate_flags - bitrate info flags |
931 | * |
932 | * Used by the driver to indicate the specific rate transmission |
933 | * type for 802.11n transmissions. |
934 | * |
935 | * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled |
936 | * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled |
937 | * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled |
938 | */ |
939 | enum bss_param_flags { |
940 | BSS_PARAM_FLAGS_CTS_PROT = 1<<0, |
941 | BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, |
942 | BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, |
943 | }; |
944 | |
945 | /** |
946 | * struct sta_bss_parameters - BSS parameters for the attached station |
947 | * |
948 | * Information about the currently associated BSS |
949 | * |
950 | * @flags: bitflag of flags from &enum bss_param_flags |
951 | * @dtim_period: DTIM period for the BSS |
952 | * @beacon_interval: beacon interval |
953 | */ |
954 | struct sta_bss_parameters { |
955 | u8 flags; |
956 | u8 dtim_period; |
957 | u16 beacon_interval; |
958 | }; |
959 | |
960 | #define IEEE80211_MAX_CHAINS 4 |
961 | |
962 | /** |
963 | * struct station_info - station information |
964 | * |
965 | * Station information filled by driver for get_station() and dump_station. |
966 | * |
967 | * @filled: bitflag of flags from &enum station_info_flags |
968 | * @connected_time: time(in secs) since a station is last connected |
969 | * @inactive_time: time since last station activity (tx/rx) in milliseconds |
970 | * @rx_bytes: bytes received from this station |
971 | * @tx_bytes: bytes transmitted to this station |
972 | * @llid: mesh local link id |
973 | * @plid: mesh peer link id |
974 | * @plink_state: mesh peer link state |
975 | * @signal: The signal strength, type depends on the wiphy's signal_type. |
976 | * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. |
977 | * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. |
978 | * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. |
979 | * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg |
980 | * @chain_signal: per-chain signal strength of last received packet in dBm |
981 | * @chain_signal_avg: per-chain signal strength average in dBm |
982 | * @txrate: current unicast bitrate from this station |
983 | * @rxrate: current unicast bitrate to this station |
984 | * @rx_packets: packets received from this station |
985 | * @tx_packets: packets transmitted to this station |
986 | * @tx_retries: cumulative retry counts |
987 | * @tx_failed: number of failed transmissions (retries exceeded, no ACK) |
988 | * @rx_dropped_misc: Dropped for un-specified reason. |
989 | * @bss_param: current BSS parameters |
990 | * @generation: generation number for nl80211 dumps. |
991 | * This number should increase every time the list of stations |
992 | * changes, i.e. when a station is added or removed, so that |
993 | * userspace can tell whether it got a consistent snapshot. |
994 | * @assoc_req_ies: IEs from (Re)Association Request. |
995 | * This is used only when in AP mode with drivers that do not use |
996 | * user space MLME/SME implementation. The information is provided for |
997 | * the cfg80211_new_sta() calls to notify user space of the IEs. |
998 | * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. |
999 | * @sta_flags: station flags mask & values |
1000 | * @beacon_loss_count: Number of times beacon loss event has triggered. |
1001 | * @t_offset: Time offset of the station relative to this host. |
1002 | * @local_pm: local mesh STA power save mode |
1003 | * @peer_pm: peer mesh STA power save mode |
1004 | * @nonpeer_pm: non-peer mesh STA power save mode |
1005 | */ |
1006 | struct station_info { |
1007 | u32 filled; |
1008 | u32 connected_time; |
1009 | u32 inactive_time; |
1010 | u64 rx_bytes; |
1011 | u64 tx_bytes; |
1012 | u16 llid; |
1013 | u16 plid; |
1014 | u8 plink_state; |
1015 | s8 signal; |
1016 | s8 signal_avg; |
1017 | |
1018 | u8 chains; |
1019 | s8 chain_signal[IEEE80211_MAX_CHAINS]; |
1020 | s8 chain_signal_avg[IEEE80211_MAX_CHAINS]; |
1021 | |
1022 | struct rate_info txrate; |
1023 | struct rate_info rxrate; |
1024 | u32 rx_packets; |
1025 | u32 tx_packets; |
1026 | u32 tx_retries; |
1027 | u32 tx_failed; |
1028 | u32 rx_dropped_misc; |
1029 | struct sta_bss_parameters bss_param; |
1030 | struct nl80211_sta_flag_update sta_flags; |
1031 | |
1032 | int generation; |
1033 | |
1034 | const u8 *assoc_req_ies; |
1035 | size_t assoc_req_ies_len; |
1036 | |
1037 | u32 beacon_loss_count; |
1038 | s64 t_offset; |
1039 | enum nl80211_mesh_power_mode local_pm; |
1040 | enum nl80211_mesh_power_mode peer_pm; |
1041 | enum nl80211_mesh_power_mode nonpeer_pm; |
1042 | |
1043 | /* |
1044 | * Note: Add a new enum station_info_flags value for each new field and |
1045 | * use it to check which fields are initialized. |
1046 | */ |
1047 | }; |
1048 | |
1049 | /** |
1050 | * enum monitor_flags - monitor flags |
1051 | * |
1052 | * Monitor interface configuration flags. Note that these must be the bits |
1053 | * according to the nl80211 flags. |
1054 | * |
1055 | * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS |
1056 | * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP |
1057 | * @MONITOR_FLAG_CONTROL: pass control frames |
1058 | * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering |
1059 | * @MONITOR_FLAG_COOK_FRAMES: report frames after processing |
1060 | * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address |
1061 | */ |
1062 | enum monitor_flags { |
1063 | MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, |
1064 | MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, |
1065 | MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, |
1066 | MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, |
1067 | MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, |
1068 | MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE, |
1069 | }; |
1070 | |
1071 | /** |
1072 | * enum mpath_info_flags - mesh path information flags |
1073 | * |
1074 | * Used by the driver to indicate which info in &struct mpath_info it has filled |
1075 | * in during get_station() or dump_station(). |
1076 | * |
1077 | * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled |
1078 | * @MPATH_INFO_SN: @sn filled |
1079 | * @MPATH_INFO_METRIC: @metric filled |
1080 | * @MPATH_INFO_EXPTIME: @exptime filled |
1081 | * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled |
1082 | * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled |
1083 | * @MPATH_INFO_FLAGS: @flags filled |
1084 | */ |
1085 | enum mpath_info_flags { |
1086 | MPATH_INFO_FRAME_QLEN = BIT(0), |
1087 | MPATH_INFO_SN = BIT(1), |
1088 | MPATH_INFO_METRIC = BIT(2), |
1089 | MPATH_INFO_EXPTIME = BIT(3), |
1090 | MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), |
1091 | MPATH_INFO_DISCOVERY_RETRIES = BIT(5), |
1092 | MPATH_INFO_FLAGS = BIT(6), |
1093 | }; |
1094 | |
1095 | /** |
1096 | * struct mpath_info - mesh path information |
1097 | * |
1098 | * Mesh path information filled by driver for get_mpath() and dump_mpath(). |
1099 | * |
1100 | * @filled: bitfield of flags from &enum mpath_info_flags |
1101 | * @frame_qlen: number of queued frames for this destination |
1102 | * @sn: target sequence number |
1103 | * @metric: metric (cost) of this mesh path |
1104 | * @exptime: expiration time for the mesh path from now, in msecs |
1105 | * @flags: mesh path flags |
1106 | * @discovery_timeout: total mesh path discovery timeout, in msecs |
1107 | * @discovery_retries: mesh path discovery retries |
1108 | * @generation: generation number for nl80211 dumps. |
1109 | * This number should increase every time the list of mesh paths |
1110 | * changes, i.e. when a station is added or removed, so that |
1111 | * userspace can tell whether it got a consistent snapshot. |
1112 | */ |
1113 | struct mpath_info { |
1114 | u32 filled; |
1115 | u32 frame_qlen; |
1116 | u32 sn; |
1117 | u32 metric; |
1118 | u32 exptime; |
1119 | u32 discovery_timeout; |
1120 | u8 discovery_retries; |
1121 | u8 flags; |
1122 | |
1123 | int generation; |
1124 | }; |
1125 | |
1126 | /** |
1127 | * struct bss_parameters - BSS parameters |
1128 | * |
1129 | * Used to change BSS parameters (mainly for AP mode). |
1130 | * |
1131 | * @use_cts_prot: Whether to use CTS protection |
1132 | * (0 = no, 1 = yes, -1 = do not change) |
1133 | * @use_short_preamble: Whether the use of short preambles is allowed |
1134 | * (0 = no, 1 = yes, -1 = do not change) |
1135 | * @use_short_slot_time: Whether the use of short slot time is allowed |
1136 | * (0 = no, 1 = yes, -1 = do not change) |
1137 | * @basic_rates: basic rates in IEEE 802.11 format |
1138 | * (or NULL for no change) |
1139 | * @basic_rates_len: number of basic rates |
1140 | * @ap_isolate: do not forward packets between connected stations |
1141 | * @ht_opmode: HT Operation mode |
1142 | * (u16 = opmode, -1 = do not change) |
1143 | * @p2p_ctwindow: P2P CT Window (-1 = no change) |
1144 | * @p2p_opp_ps: P2P opportunistic PS (-1 = no change) |
1145 | */ |
1146 | struct bss_parameters { |
1147 | int use_cts_prot; |
1148 | int use_short_preamble; |
1149 | int use_short_slot_time; |
1150 | u8 *basic_rates; |
1151 | u8 basic_rates_len; |
1152 | int ap_isolate; |
1153 | int ht_opmode; |
1154 | s8 p2p_ctwindow, p2p_opp_ps; |
1155 | }; |
1156 | |
1157 | /** |
1158 | * struct mesh_config - 802.11s mesh configuration |
1159 | * |
1160 | * These parameters can be changed while the mesh is active. |
1161 | * |
1162 | * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used |
1163 | * by the Mesh Peering Open message |
1164 | * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units |
1165 | * used by the Mesh Peering Open message |
1166 | * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by |
1167 | * the mesh peering management to close a mesh peering |
1168 | * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this |
1169 | * mesh interface |
1170 | * @dot11MeshMaxRetries: the maximum number of peer link open retries that can |
1171 | * be sent to establish a new peer link instance in a mesh |
1172 | * @dot11MeshTTL: the value of TTL field set at a source mesh STA |
1173 | * @element_ttl: the value of TTL field set at a mesh STA for path selection |
1174 | * elements |
1175 | * @auto_open_plinks: whether we should automatically open peer links when we |
1176 | * detect compatible mesh peers |
1177 | * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to |
1178 | * synchronize to for 11s default synchronization method |
1179 | * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ |
1180 | * that an originator mesh STA can send to a particular path target |
1181 | * @path_refresh_time: how frequently to refresh mesh paths in milliseconds |
1182 | * @min_discovery_timeout: the minimum length of time to wait until giving up on |
1183 | * a path discovery in milliseconds |
1184 | * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs |
1185 | * receiving a PREQ shall consider the forwarding information from the |
1186 | * root to be valid. (TU = time unit) |
1187 | * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during |
1188 | * which a mesh STA can send only one action frame containing a PREQ |
1189 | * element |
1190 | * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during |
1191 | * which a mesh STA can send only one Action frame containing a PERR |
1192 | * element |
1193 | * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that |
1194 | * it takes for an HWMP information element to propagate across the mesh |
1195 | * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA |
1196 | * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root |
1197 | * announcements are transmitted |
1198 | * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh |
1199 | * station has access to a broader network beyond the MBSS. (This is |
1200 | * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true |
1201 | * only means that the station will announce others it's a mesh gate, but |
1202 | * not necessarily using the gate announcement protocol. Still keeping the |
1203 | * same nomenclature to be in sync with the spec) |
1204 | * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding |
1205 | * entity (default is TRUE - forwarding entity) |
1206 | * @rssi_threshold: the threshold for average signal strength of candidate |
1207 | * station to establish a peer link |
1208 | * @ht_opmode: mesh HT protection mode |
1209 | * |
1210 | * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs |
1211 | * receiving a proactive PREQ shall consider the forwarding information to |
1212 | * the root mesh STA to be valid. |
1213 | * |
1214 | * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive |
1215 | * PREQs are transmitted. |
1216 | * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) |
1217 | * during which a mesh STA can send only one Action frame containing |
1218 | * a PREQ element for root path confirmation. |
1219 | * @power_mode: The default mesh power save mode which will be the initial |
1220 | * setting for new peer links. |
1221 | * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake |
1222 | * after transmitting its beacon. |
1223 | * @plink_timeout: If no tx activity is seen from a STA we've established |
1224 | * peering with for longer than this time (in seconds), then remove it |
1225 | * from the STA's list of peers. Default is 30 minutes. |
1226 | */ |
1227 | struct mesh_config { |
1228 | u16 dot11MeshRetryTimeout; |
1229 | u16 dot11MeshConfirmTimeout; |
1230 | u16 dot11MeshHoldingTimeout; |
1231 | u16 dot11MeshMaxPeerLinks; |
1232 | u8 dot11MeshMaxRetries; |
1233 | u8 dot11MeshTTL; |
1234 | u8 element_ttl; |
1235 | bool auto_open_plinks; |
1236 | u32 dot11MeshNbrOffsetMaxNeighbor; |
1237 | u8 dot11MeshHWMPmaxPREQretries; |
1238 | u32 path_refresh_time; |
1239 | u16 min_discovery_timeout; |
1240 | u32 dot11MeshHWMPactivePathTimeout; |
1241 | u16 dot11MeshHWMPpreqMinInterval; |
1242 | u16 dot11MeshHWMPperrMinInterval; |
1243 | u16 dot11MeshHWMPnetDiameterTraversalTime; |
1244 | u8 dot11MeshHWMPRootMode; |
1245 | u16 dot11MeshHWMPRannInterval; |
1246 | bool dot11MeshGateAnnouncementProtocol; |
1247 | bool dot11MeshForwarding; |
1248 | s32 rssi_threshold; |
1249 | u16 ht_opmode; |
1250 | u32 dot11MeshHWMPactivePathToRootTimeout; |
1251 | u16 dot11MeshHWMProotInterval; |
1252 | u16 dot11MeshHWMPconfirmationInterval; |
1253 | enum nl80211_mesh_power_mode power_mode; |
1254 | u16 dot11MeshAwakeWindowDuration; |
1255 | u32 plink_timeout; |
1256 | }; |
1257 | |
1258 | /** |
1259 | * struct mesh_setup - 802.11s mesh setup configuration |
1260 | * @chandef: defines the channel to use |
1261 | * @mesh_id: the mesh ID |
1262 | * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes |
1263 | * @sync_method: which synchronization method to use |
1264 | * @path_sel_proto: which path selection protocol to use |
1265 | * @path_metric: which metric to use |
1266 | * @auth_id: which authentication method this mesh is using |
1267 | * @ie: vendor information elements (optional) |
1268 | * @ie_len: length of vendor information elements |
1269 | * @is_authenticated: this mesh requires authentication |
1270 | * @is_secure: this mesh uses security |
1271 | * @user_mpm: userspace handles all MPM functions |
1272 | * @dtim_period: DTIM period to use |
1273 | * @beacon_interval: beacon interval to use |
1274 | * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a] |
1275 | * @basic_rates: basic rates to use when creating the mesh |
1276 | * |
1277 | * These parameters are fixed when the mesh is created. |
1278 | */ |
1279 | struct mesh_setup { |
1280 | struct cfg80211_chan_def chandef; |
1281 | const u8 *mesh_id; |
1282 | u8 mesh_id_len; |
1283 | u8 sync_method; |
1284 | u8 path_sel_proto; |
1285 | u8 path_metric; |
1286 | u8 auth_id; |
1287 | const u8 *ie; |
1288 | u8 ie_len; |
1289 | bool is_authenticated; |
1290 | bool is_secure; |
1291 | bool user_mpm; |
1292 | u8 dtim_period; |
1293 | u16 beacon_interval; |
1294 | int mcast_rate[IEEE80211_NUM_BANDS]; |
1295 | u32 basic_rates; |
1296 | }; |
1297 | |
1298 | /** |
1299 | * struct ieee80211_txq_params - TX queue parameters |
1300 | * @ac: AC identifier |
1301 | * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled |
1302 | * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range |
1303 | * 1..32767] |
1304 | * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range |
1305 | * 1..32767] |
1306 | * @aifs: Arbitration interframe space [0..255] |
1307 | */ |
1308 | struct ieee80211_txq_params { |
1309 | enum nl80211_ac ac; |
1310 | u16 txop; |
1311 | u16 cwmin; |
1312 | u16 cwmax; |
1313 | u8 aifs; |
1314 | }; |
1315 | |
1316 | /** |
1317 | * DOC: Scanning and BSS list handling |
1318 | * |
1319 | * The scanning process itself is fairly simple, but cfg80211 offers quite |
1320 | * a bit of helper functionality. To start a scan, the scan operation will |
1321 | * be invoked with a scan definition. This scan definition contains the |
1322 | * channels to scan, and the SSIDs to send probe requests for (including the |
1323 | * wildcard, if desired). A passive scan is indicated by having no SSIDs to |
1324 | * probe. Additionally, a scan request may contain extra information elements |
1325 | * that should be added to the probe request. The IEs are guaranteed to be |
1326 | * well-formed, and will not exceed the maximum length the driver advertised |
1327 | * in the wiphy structure. |
1328 | * |
1329 | * When scanning finds a BSS, cfg80211 needs to be notified of that, because |
1330 | * it is responsible for maintaining the BSS list; the driver should not |
1331 | * maintain a list itself. For this notification, various functions exist. |
1332 | * |
1333 | * Since drivers do not maintain a BSS list, there are also a number of |
1334 | * functions to search for a BSS and obtain information about it from the |
1335 | * BSS structure cfg80211 maintains. The BSS list is also made available |
1336 | * to userspace. |
1337 | */ |
1338 | |
1339 | /** |
1340 | * struct cfg80211_ssid - SSID description |
1341 | * @ssid: the SSID |
1342 | * @ssid_len: length of the ssid |
1343 | */ |
1344 | struct cfg80211_ssid { |
1345 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
1346 | u8 ssid_len; |
1347 | }; |
1348 | |
1349 | /** |
1350 | * struct cfg80211_scan_request - scan request description |
1351 | * |
1352 | * @ssids: SSIDs to scan for (active scan only) |
1353 | * @n_ssids: number of SSIDs |
1354 | * @channels: channels to scan on. |
1355 | * @n_channels: total number of channels to scan |
1356 | * @scan_width: channel width for scanning |
1357 | * @ie: optional information element(s) to add into Probe Request or %NULL |
1358 | * @ie_len: length of ie in octets |
1359 | * @flags: bit field of flags controlling operation |
1360 | * @rates: bitmap of rates to advertise for each band |
1361 | * @wiphy: the wiphy this was for |
1362 | * @scan_start: time (in jiffies) when the scan started |
1363 | * @wdev: the wireless device to scan for |
1364 | * @aborted: (internal) scan request was notified as aborted |
1365 | * @notified: (internal) scan request was notified as done or aborted |
1366 | * @no_cck: used to send probe requests at non CCK rate in 2GHz band |
1367 | */ |
1368 | struct cfg80211_scan_request { |
1369 | struct cfg80211_ssid *ssids; |
1370 | int n_ssids; |
1371 | u32 n_channels; |
1372 | enum nl80211_bss_scan_width scan_width; |
1373 | const u8 *ie; |
1374 | size_t ie_len; |
1375 | u32 flags; |
1376 | |
1377 | u32 rates[IEEE80211_NUM_BANDS]; |
1378 | |
1379 | struct wireless_dev *wdev; |
1380 | |
1381 | /* internal */ |
1382 | struct wiphy *wiphy; |
1383 | unsigned long scan_start; |
1384 | bool aborted, notified; |
1385 | bool no_cck; |
1386 | |
1387 | /* keep last */ |
1388 | struct ieee80211_channel *channels[0]; |
1389 | }; |
1390 | |
1391 | /** |
1392 | * struct cfg80211_match_set - sets of attributes to match |
1393 | * |
1394 | * @ssid: SSID to be matched |
1395 | */ |
1396 | struct cfg80211_match_set { |
1397 | struct cfg80211_ssid ssid; |
1398 | }; |
1399 | |
1400 | /** |
1401 | * struct cfg80211_sched_scan_request - scheduled scan request description |
1402 | * |
1403 | * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) |
1404 | * @n_ssids: number of SSIDs |
1405 | * @n_channels: total number of channels to scan |
1406 | * @scan_width: channel width for scanning |
1407 | * @interval: interval between each scheduled scan cycle |
1408 | * @ie: optional information element(s) to add into Probe Request or %NULL |
1409 | * @ie_len: length of ie in octets |
1410 | * @flags: bit field of flags controlling operation |
1411 | * @match_sets: sets of parameters to be matched for a scan result |
1412 | * entry to be considered valid and to be passed to the host |
1413 | * (others are filtered out). |
1414 | * If ommited, all results are passed. |
1415 | * @n_match_sets: number of match sets |
1416 | * @wiphy: the wiphy this was for |
1417 | * @dev: the interface |
1418 | * @scan_start: start time of the scheduled scan |
1419 | * @channels: channels to scan |
1420 | * @rssi_thold: don't report scan results below this threshold (in s32 dBm) |
1421 | */ |
1422 | struct cfg80211_sched_scan_request { |
1423 | struct cfg80211_ssid *ssids; |
1424 | int n_ssids; |
1425 | u32 n_channels; |
1426 | enum nl80211_bss_scan_width scan_width; |
1427 | u32 interval; |
1428 | const u8 *ie; |
1429 | size_t ie_len; |
1430 | u32 flags; |
1431 | struct cfg80211_match_set *match_sets; |
1432 | int n_match_sets; |
1433 | s32 rssi_thold; |
1434 | |
1435 | /* internal */ |
1436 | struct wiphy *wiphy; |
1437 | struct net_device *dev; |
1438 | unsigned long scan_start; |
1439 | |
1440 | /* keep last */ |
1441 | struct ieee80211_channel *channels[0]; |
1442 | }; |
1443 | |
1444 | /** |
1445 | * enum cfg80211_signal_type - signal type |
1446 | * |
1447 | * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available |
1448 | * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) |
1449 | * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 |
1450 | */ |
1451 | enum cfg80211_signal_type { |
1452 | CFG80211_SIGNAL_TYPE_NONE, |
1453 | CFG80211_SIGNAL_TYPE_MBM, |
1454 | CFG80211_SIGNAL_TYPE_UNSPEC, |
1455 | }; |
1456 | |
1457 | /** |
1458 | * struct cfg80211_bss_ie_data - BSS entry IE data |
1459 | * @tsf: TSF contained in the frame that carried these IEs |
1460 | * @rcu_head: internal use, for freeing |
1461 | * @len: length of the IEs |
1462 | * @data: IE data |
1463 | */ |
1464 | struct cfg80211_bss_ies { |
1465 | u64 tsf; |
1466 | struct rcu_head rcu_head; |
1467 | int len; |
1468 | u8 data[]; |
1469 | }; |
1470 | |
1471 | /** |
1472 | * struct cfg80211_bss - BSS description |
1473 | * |
1474 | * This structure describes a BSS (which may also be a mesh network) |
1475 | * for use in scan results and similar. |
1476 | * |
1477 | * @channel: channel this BSS is on |
1478 | * @scan_width: width of the control channel |
1479 | * @bssid: BSSID of the BSS |
1480 | * @beacon_interval: the beacon interval as from the frame |
1481 | * @capability: the capability field in host byte order |
1482 | * @ies: the information elements (Note that there is no guarantee that these |
1483 | * are well-formed!); this is a pointer to either the beacon_ies or |
1484 | * proberesp_ies depending on whether Probe Response frame has been |
1485 | * received. It is always non-%NULL. |
1486 | * @beacon_ies: the information elements from the last Beacon frame |
1487 | * (implementation note: if @hidden_beacon_bss is set this struct doesn't |
1488 | * own the beacon_ies, but they're just pointers to the ones from the |
1489 | * @hidden_beacon_bss struct) |
1490 | * @proberesp_ies: the information elements from the last Probe Response frame |
1491 | * @hidden_beacon_bss: in case this BSS struct represents a probe response from |
1492 | * a BSS that hides the SSID in its beacon, this points to the BSS struct |
1493 | * that holds the beacon data. @beacon_ies is still valid, of course, and |
1494 | * points to the same data as hidden_beacon_bss->beacon_ies in that case. |
1495 | * @signal: signal strength value (type depends on the wiphy's signal_type) |
1496 | * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes |
1497 | */ |
1498 | struct cfg80211_bss { |
1499 | struct ieee80211_channel *channel; |
1500 | enum nl80211_bss_scan_width scan_width; |
1501 | |
1502 | const struct cfg80211_bss_ies __rcu *ies; |
1503 | const struct cfg80211_bss_ies __rcu *beacon_ies; |
1504 | const struct cfg80211_bss_ies __rcu *proberesp_ies; |
1505 | |
1506 | struct cfg80211_bss *hidden_beacon_bss; |
1507 | |
1508 | s32 signal; |
1509 | |
1510 | u16 beacon_interval; |
1511 | u16 capability; |
1512 | |
1513 | u8 bssid[ETH_ALEN]; |
1514 | |
1515 | u8 priv[0] __aligned(sizeof(void *)); |
1516 | }; |
1517 | |
1518 | /** |
1519 | * ieee80211_bss_get_ie - find IE with given ID |
1520 | * @bss: the bss to search |
1521 | * @ie: the IE ID |
1522 | * |
1523 | * Note that the return value is an RCU-protected pointer, so |
1524 | * rcu_read_lock() must be held when calling this function. |
1525 | * Return: %NULL if not found. |
1526 | */ |
1527 | const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); |
1528 | |
1529 | |
1530 | /** |
1531 | * struct cfg80211_auth_request - Authentication request data |
1532 | * |
1533 | * This structure provides information needed to complete IEEE 802.11 |
1534 | * authentication. |
1535 | * |
1536 | * @bss: The BSS to authenticate with, the callee must obtain a reference |
1537 | * to it if it needs to keep it. |
1538 | * @auth_type: Authentication type (algorithm) |
1539 | * @ie: Extra IEs to add to Authentication frame or %NULL |
1540 | * @ie_len: Length of ie buffer in octets |
1541 | * @key_len: length of WEP key for shared key authentication |
1542 | * @key_idx: index of WEP key for shared key authentication |
1543 | * @key: WEP key for shared key authentication |
1544 | * @sae_data: Non-IE data to use with SAE or %NULL. This starts with |
1545 | * Authentication transaction sequence number field. |
1546 | * @sae_data_len: Length of sae_data buffer in octets |
1547 | */ |
1548 | struct cfg80211_auth_request { |
1549 | struct cfg80211_bss *bss; |
1550 | const u8 *ie; |
1551 | size_t ie_len; |
1552 | enum nl80211_auth_type auth_type; |
1553 | const u8 *key; |
1554 | u8 key_len, key_idx; |
1555 | const u8 *sae_data; |
1556 | size_t sae_data_len; |
1557 | }; |
1558 | |
1559 | /** |
1560 | * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. |
1561 | * |
1562 | * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) |
1563 | * @ASSOC_REQ_DISABLE_VHT: Disable VHT |
1564 | */ |
1565 | enum cfg80211_assoc_req_flags { |
1566 | ASSOC_REQ_DISABLE_HT = BIT(0), |
1567 | ASSOC_REQ_DISABLE_VHT = BIT(1), |
1568 | }; |
1569 | |
1570 | /** |
1571 | * struct cfg80211_assoc_request - (Re)Association request data |
1572 | * |
1573 | * This structure provides information needed to complete IEEE 802.11 |
1574 | * (re)association. |
1575 | * @bss: The BSS to associate with. If the call is successful the driver is |
1576 | * given a reference that it must give back to cfg80211_send_rx_assoc() |
1577 | * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new |
1578 | * association requests while already associating must be rejected. |
1579 | * @ie: Extra IEs to add to (Re)Association Request frame or %NULL |
1580 | * @ie_len: Length of ie buffer in octets |
1581 | * @use_mfp: Use management frame protection (IEEE 802.11w) in this association |
1582 | * @crypto: crypto settings |
1583 | * @prev_bssid: previous BSSID, if not %NULL use reassociate frame |
1584 | * @flags: See &enum cfg80211_assoc_req_flags |
1585 | * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask |
1586 | * will be used in ht_capa. Un-supported values will be ignored. |
1587 | * @ht_capa_mask: The bits of ht_capa which are to be used. |
1588 | * @vht_capa: VHT capability override |
1589 | * @vht_capa_mask: VHT capability mask indicating which fields to use |
1590 | */ |
1591 | struct cfg80211_assoc_request { |
1592 | struct cfg80211_bss *bss; |
1593 | const u8 *ie, *prev_bssid; |
1594 | size_t ie_len; |
1595 | struct cfg80211_crypto_settings crypto; |
1596 | bool use_mfp; |
1597 | u32 flags; |
1598 | struct ieee80211_ht_cap ht_capa; |
1599 | struct ieee80211_ht_cap ht_capa_mask; |
1600 | struct ieee80211_vht_cap vht_capa, vht_capa_mask; |
1601 | }; |
1602 | |
1603 | /** |
1604 | * struct cfg80211_deauth_request - Deauthentication request data |
1605 | * |
1606 | * This structure provides information needed to complete IEEE 802.11 |
1607 | * deauthentication. |
1608 | * |
1609 | * @bssid: the BSSID of the BSS to deauthenticate from |
1610 | * @ie: Extra IEs to add to Deauthentication frame or %NULL |
1611 | * @ie_len: Length of ie buffer in octets |
1612 | * @reason_code: The reason code for the deauthentication |
1613 | * @local_state_change: if set, change local state only and |
1614 | * do not set a deauth frame |
1615 | */ |
1616 | struct cfg80211_deauth_request { |
1617 | const u8 *bssid; |
1618 | const u8 *ie; |
1619 | size_t ie_len; |
1620 | u16 reason_code; |
1621 | bool local_state_change; |
1622 | }; |
1623 | |
1624 | /** |
1625 | * struct cfg80211_disassoc_request - Disassociation request data |
1626 | * |
1627 | * This structure provides information needed to complete IEEE 802.11 |
1628 | * disassocation. |
1629 | * |
1630 | * @bss: the BSS to disassociate from |
1631 | * @ie: Extra IEs to add to Disassociation frame or %NULL |
1632 | * @ie_len: Length of ie buffer in octets |
1633 | * @reason_code: The reason code for the disassociation |
1634 | * @local_state_change: This is a request for a local state only, i.e., no |
1635 | * Disassociation frame is to be transmitted. |
1636 | */ |
1637 | struct cfg80211_disassoc_request { |
1638 | struct cfg80211_bss *bss; |
1639 | const u8 *ie; |
1640 | size_t ie_len; |
1641 | u16 reason_code; |
1642 | bool local_state_change; |
1643 | }; |
1644 | |
1645 | /** |
1646 | * struct cfg80211_ibss_params - IBSS parameters |
1647 | * |
1648 | * This structure defines the IBSS parameters for the join_ibss() |
1649 | * method. |
1650 | * |
1651 | * @ssid: The SSID, will always be non-null. |
1652 | * @ssid_len: The length of the SSID, will always be non-zero. |
1653 | * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not |
1654 | * search for IBSSs with a different BSSID. |
1655 | * @chandef: defines the channel to use if no other IBSS to join can be found |
1656 | * @channel_fixed: The channel should be fixed -- do not search for |
1657 | * IBSSs to join on other channels. |
1658 | * @ie: information element(s) to include in the beacon |
1659 | * @ie_len: length of that |
1660 | * @beacon_interval: beacon interval to use |
1661 | * @privacy: this is a protected network, keys will be configured |
1662 | * after joining |
1663 | * @control_port: whether user space controls IEEE 802.1X port, i.e., |
1664 | * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is |
1665 | * required to assume that the port is unauthorized until authorized by |
1666 | * user space. Otherwise, port is marked authorized by default. |
1667 | * @userspace_handles_dfs: whether user space controls DFS operation, i.e. |
1668 | * changes the channel when a radar is detected. This is required |
1669 | * to operate on DFS channels. |
1670 | * @basic_rates: bitmap of basic rates to use when creating the IBSS |
1671 | * @mcast_rate: per-band multicast rate index + 1 (0: disabled) |
1672 | * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask |
1673 | * will be used in ht_capa. Un-supported values will be ignored. |
1674 | * @ht_capa_mask: The bits of ht_capa which are to be used. |
1675 | */ |
1676 | struct cfg80211_ibss_params { |
1677 | u8 *ssid; |
1678 | u8 *bssid; |
1679 | struct cfg80211_chan_def chandef; |
1680 | u8 *ie; |
1681 | u8 ssid_len, ie_len; |
1682 | u16 beacon_interval; |
1683 | u32 basic_rates; |
1684 | bool channel_fixed; |
1685 | bool privacy; |
1686 | bool control_port; |
1687 | bool userspace_handles_dfs; |
1688 | int mcast_rate[IEEE80211_NUM_BANDS]; |
1689 | struct ieee80211_ht_cap ht_capa; |
1690 | struct ieee80211_ht_cap ht_capa_mask; |
1691 | }; |
1692 | |
1693 | /** |
1694 | * struct cfg80211_connect_params - Connection parameters |
1695 | * |
1696 | * This structure provides information needed to complete IEEE 802.11 |
1697 | * authentication and association. |
1698 | * |
1699 | * @channel: The channel to use or %NULL if not specified (auto-select based |
1700 | * on scan results) |
1701 | * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan |
1702 | * results) |
1703 | * @ssid: SSID |
1704 | * @ssid_len: Length of ssid in octets |
1705 | * @auth_type: Authentication type (algorithm) |
1706 | * @ie: IEs for association request |
1707 | * @ie_len: Length of assoc_ie in octets |
1708 | * @privacy: indicates whether privacy-enabled APs should be used |
1709 | * @mfp: indicate whether management frame protection is used |
1710 | * @crypto: crypto settings |
1711 | * @key_len: length of WEP key for shared key authentication |
1712 | * @key_idx: index of WEP key for shared key authentication |
1713 | * @key: WEP key for shared key authentication |
1714 | * @flags: See &enum cfg80211_assoc_req_flags |
1715 | * @bg_scan_period: Background scan period in seconds |
1716 | * or -1 to indicate that default value is to be used. |
1717 | * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask |
1718 | * will be used in ht_capa. Un-supported values will be ignored. |
1719 | * @ht_capa_mask: The bits of ht_capa which are to be used. |
1720 | * @vht_capa: VHT Capability overrides |
1721 | * @vht_capa_mask: The bits of vht_capa which are to be used. |
1722 | */ |
1723 | struct cfg80211_connect_params { |
1724 | struct ieee80211_channel *channel; |
1725 | u8 *bssid; |
1726 | u8 *ssid; |
1727 | size_t ssid_len; |
1728 | enum nl80211_auth_type auth_type; |
1729 | u8 *ie; |
1730 | size_t ie_len; |
1731 | bool privacy; |
1732 | enum nl80211_mfp mfp; |
1733 | struct cfg80211_crypto_settings crypto; |
1734 | const u8 *key; |
1735 | u8 key_len, key_idx; |
1736 | u32 flags; |
1737 | int bg_scan_period; |
1738 | struct ieee80211_ht_cap ht_capa; |
1739 | struct ieee80211_ht_cap ht_capa_mask; |
1740 | struct ieee80211_vht_cap vht_capa; |
1741 | struct ieee80211_vht_cap vht_capa_mask; |
1742 | }; |
1743 | |
1744 | /** |
1745 | * enum wiphy_params_flags - set_wiphy_params bitfield values |
1746 | * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed |
1747 | * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed |
1748 | * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed |
1749 | * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed |
1750 | * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed |
1751 | */ |
1752 | enum wiphy_params_flags { |
1753 | WIPHY_PARAM_RETRY_SHORT = 1 << 0, |
1754 | WIPHY_PARAM_RETRY_LONG = 1 << 1, |
1755 | WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, |
1756 | WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, |
1757 | WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, |
1758 | }; |
1759 | |
1760 | /* |
1761 | * cfg80211_bitrate_mask - masks for bitrate control |
1762 | */ |
1763 | struct cfg80211_bitrate_mask { |
1764 | struct { |
1765 | u32 legacy; |
1766 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; |
1767 | } control[IEEE80211_NUM_BANDS]; |
1768 | }; |
1769 | /** |
1770 | * struct cfg80211_pmksa - PMK Security Association |
1771 | * |
1772 | * This structure is passed to the set/del_pmksa() method for PMKSA |
1773 | * caching. |
1774 | * |
1775 | * @bssid: The AP's BSSID. |
1776 | * @pmkid: The PMK material itself. |
1777 | */ |
1778 | struct cfg80211_pmksa { |
1779 | u8 *bssid; |
1780 | u8 *pmkid; |
1781 | }; |
1782 | |
1783 | /** |
1784 | * struct cfg80211_pkt_pattern - packet pattern |
1785 | * @mask: bitmask where to match pattern and where to ignore bytes, |
1786 | * one bit per byte, in same format as nl80211 |
1787 | * @pattern: bytes to match where bitmask is 1 |
1788 | * @pattern_len: length of pattern (in bytes) |
1789 | * @pkt_offset: packet offset (in bytes) |
1790 | * |
1791 | * Internal note: @mask and @pattern are allocated in one chunk of |
1792 | * memory, free @mask only! |
1793 | */ |
1794 | struct cfg80211_pkt_pattern { |
1795 | u8 *mask, *pattern; |
1796 | int pattern_len; |
1797 | int pkt_offset; |
1798 | }; |
1799 | |
1800 | /** |
1801 | * struct cfg80211_wowlan_tcp - TCP connection parameters |
1802 | * |
1803 | * @sock: (internal) socket for source port allocation |
1804 | * @src: source IP address |
1805 | * @dst: destination IP address |
1806 | * @dst_mac: destination MAC address |
1807 | * @src_port: source port |
1808 | * @dst_port: destination port |
1809 | * @payload_len: data payload length |
1810 | * @payload: data payload buffer |
1811 | * @payload_seq: payload sequence stamping configuration |
1812 | * @data_interval: interval at which to send data packets |
1813 | * @wake_len: wakeup payload match length |
1814 | * @wake_data: wakeup payload match data |
1815 | * @wake_mask: wakeup payload match mask |
1816 | * @tokens_size: length of the tokens buffer |
1817 | * @payload_tok: payload token usage configuration |
1818 | */ |
1819 | struct cfg80211_wowlan_tcp { |
1820 | struct socket *sock; |
1821 | __be32 src, dst; |
1822 | u16 src_port, dst_port; |
1823 | u8 dst_mac[ETH_ALEN]; |
1824 | int payload_len; |
1825 | const u8 *payload; |
1826 | struct nl80211_wowlan_tcp_data_seq payload_seq; |
1827 | u32 data_interval; |
1828 | u32 wake_len; |
1829 | const u8 *wake_data, *wake_mask; |
1830 | u32 tokens_size; |
1831 | /* must be last, variable member */ |
1832 | struct nl80211_wowlan_tcp_data_token payload_tok; |
1833 | }; |
1834 | |
1835 | /** |
1836 | * struct cfg80211_wowlan - Wake on Wireless-LAN support info |
1837 | * |
1838 | * This structure defines the enabled WoWLAN triggers for the device. |
1839 | * @any: wake up on any activity -- special trigger if device continues |
1840 | * operating as normal during suspend |
1841 | * @disconnect: wake up if getting disconnected |
1842 | * @magic_pkt: wake up on receiving magic packet |
1843 | * @patterns: wake up on receiving packet matching a pattern |
1844 | * @n_patterns: number of patterns |
1845 | * @gtk_rekey_failure: wake up on GTK rekey failure |
1846 | * @eap_identity_req: wake up on EAP identity request packet |
1847 | * @four_way_handshake: wake up on 4-way handshake |
1848 | * @rfkill_release: wake up when rfkill is released |
1849 | * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h. |
1850 | * NULL if not configured. |
1851 | */ |
1852 | struct cfg80211_wowlan { |
1853 | bool any, disconnect, magic_pkt, gtk_rekey_failure, |
1854 | eap_identity_req, four_way_handshake, |
1855 | rfkill_release; |
1856 | struct cfg80211_pkt_pattern *patterns; |
1857 | struct cfg80211_wowlan_tcp *tcp; |
1858 | int n_patterns; |
1859 | }; |
1860 | |
1861 | /** |
1862 | * struct cfg80211_coalesce_rules - Coalesce rule parameters |
1863 | * |
1864 | * This structure defines coalesce rule for the device. |
1865 | * @delay: maximum coalescing delay in msecs. |
1866 | * @condition: condition for packet coalescence. |
1867 | * see &enum nl80211_coalesce_condition. |
1868 | * @patterns: array of packet patterns |
1869 | * @n_patterns: number of patterns |
1870 | */ |
1871 | struct cfg80211_coalesce_rules { |
1872 | int delay; |
1873 | enum nl80211_coalesce_condition condition; |
1874 | struct cfg80211_pkt_pattern *patterns; |
1875 | int n_patterns; |
1876 | }; |
1877 | |
1878 | /** |
1879 | * struct cfg80211_coalesce - Packet coalescing settings |
1880 | * |
1881 | * This structure defines coalescing settings. |
1882 | * @rules: array of coalesce rules |
1883 | * @n_rules: number of rules |
1884 | */ |
1885 | struct cfg80211_coalesce { |
1886 | struct cfg80211_coalesce_rules *rules; |
1887 | int n_rules; |
1888 | }; |
1889 | |
1890 | /** |
1891 | * struct cfg80211_wowlan_wakeup - wakeup report |
1892 | * @disconnect: woke up by getting disconnected |
1893 | * @magic_pkt: woke up by receiving magic packet |
1894 | * @gtk_rekey_failure: woke up by GTK rekey failure |
1895 | * @eap_identity_req: woke up by EAP identity request packet |
1896 | * @four_way_handshake: woke up by 4-way handshake |
1897 | * @rfkill_release: woke up by rfkill being released |
1898 | * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern |
1899 | * @packet_present_len: copied wakeup packet data |
1900 | * @packet_len: original wakeup packet length |
1901 | * @packet: The packet causing the wakeup, if any. |
1902 | * @packet_80211: For pattern match, magic packet and other data |
1903 | * frame triggers an 802.3 frame should be reported, for |
1904 | * disconnect due to deauth 802.11 frame. This indicates which |
1905 | * it is. |
1906 | * @tcp_match: TCP wakeup packet received |
1907 | * @tcp_connlost: TCP connection lost or failed to establish |
1908 | * @tcp_nomoretokens: TCP data ran out of tokens |
1909 | */ |
1910 | struct cfg80211_wowlan_wakeup { |
1911 | bool disconnect, magic_pkt, gtk_rekey_failure, |
1912 | eap_identity_req, four_way_handshake, |
1913 | rfkill_release, packet_80211, |
1914 | tcp_match, tcp_connlost, tcp_nomoretokens; |
1915 | s32 pattern_idx; |
1916 | u32 packet_present_len, packet_len; |
1917 | const void *packet; |
1918 | }; |
1919 | |
1920 | /** |
1921 | * struct cfg80211_gtk_rekey_data - rekey data |
1922 | * @kek: key encryption key |
1923 | * @kck: key confirmation key |
1924 | * @replay_ctr: replay counter |
1925 | */ |
1926 | struct cfg80211_gtk_rekey_data { |
1927 | u8 kek[NL80211_KEK_LEN]; |
1928 | u8 kck[NL80211_KCK_LEN]; |
1929 | u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; |
1930 | }; |
1931 | |
1932 | /** |
1933 | * struct cfg80211_update_ft_ies_params - FT IE Information |
1934 | * |
1935 | * This structure provides information needed to update the fast transition IE |
1936 | * |
1937 | * @md: The Mobility Domain ID, 2 Octet value |
1938 | * @ie: Fast Transition IEs |
1939 | * @ie_len: Length of ft_ie in octets |
1940 | */ |
1941 | struct cfg80211_update_ft_ies_params { |
1942 | u16 md; |
1943 | const u8 *ie; |
1944 | size_t ie_len; |
1945 | }; |
1946 | |
1947 | /** |
1948 | * struct cfg80211_ops - backend description for wireless configuration |
1949 | * |
1950 | * This struct is registered by fullmac card drivers and/or wireless stacks |
1951 | * in order to handle configuration requests on their interfaces. |
1952 | * |
1953 | * All callbacks except where otherwise noted should return 0 |
1954 | * on success or a negative error code. |
1955 | * |
1956 | * All operations are currently invoked under rtnl for consistency with the |
1957 | * wireless extensions but this is subject to reevaluation as soon as this |
1958 | * code is used more widely and we have a first user without wext. |
1959 | * |
1960 | * @suspend: wiphy device needs to be suspended. The variable @wow will |
1961 | * be %NULL or contain the enabled Wake-on-Wireless triggers that are |
1962 | * configured for the device. |
1963 | * @resume: wiphy device needs to be resumed |
1964 | * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback |
1965 | * to call device_set_wakeup_enable() to enable/disable wakeup from |
1966 | * the device. |
1967 | * |
1968 | * @add_virtual_intf: create a new virtual interface with the given name, |
1969 | * must set the struct wireless_dev's iftype. Beware: You must create |
1970 | * the new netdev in the wiphy's network namespace! Returns the struct |
1971 | * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must |
1972 | * also set the address member in the wdev. |
1973 | * |
1974 | * @del_virtual_intf: remove the virtual interface |
1975 | * |
1976 | * @change_virtual_intf: change type/configuration of virtual interface, |
1977 | * keep the struct wireless_dev's iftype updated. |
1978 | * |
1979 | * @add_key: add a key with the given parameters. @mac_addr will be %NULL |
1980 | * when adding a group key. |
1981 | * |
1982 | * @get_key: get information about the key with the given parameters. |
1983 | * @mac_addr will be %NULL when requesting information for a group |
1984 | * key. All pointers given to the @callback function need not be valid |
1985 | * after it returns. This function should return an error if it is |
1986 | * not possible to retrieve the key, -ENOENT if it doesn't exist. |
1987 | * |
1988 | * @del_key: remove a key given the @mac_addr (%NULL for a group key) |
1989 | * and @key_index, return -ENOENT if the key doesn't exist. |
1990 | * |
1991 | * @set_default_key: set the default key on an interface |
1992 | * |
1993 | * @set_default_mgmt_key: set the default management frame key on an interface |
1994 | * |
1995 | * @set_rekey_data: give the data necessary for GTK rekeying to the driver |
1996 | * |
1997 | * @start_ap: Start acting in AP mode defined by the parameters. |
1998 | * @change_beacon: Change the beacon parameters for an access point mode |
1999 | * interface. This should reject the call when AP mode wasn't started. |
2000 | * @stop_ap: Stop being an AP, including stopping beaconing. |
2001 | * |
2002 | * @add_station: Add a new station. |
2003 | * @del_station: Remove a station; @mac may be NULL to remove all stations. |
2004 | * @change_station: Modify a given station. Note that flags changes are not much |
2005 | * validated in cfg80211, in particular the auth/assoc/authorized flags |
2006 | * might come to the driver in invalid combinations -- make sure to check |
2007 | * them, also against the existing state! Drivers must call |
2008 | * cfg80211_check_station_change() to validate the information. |
2009 | * @get_station: get station information for the station identified by @mac |
2010 | * @dump_station: dump station callback -- resume dump at index @idx |
2011 | * |
2012 | * @add_mpath: add a fixed mesh path |
2013 | * @del_mpath: delete a given mesh path |
2014 | * @change_mpath: change a given mesh path |
2015 | * @get_mpath: get a mesh path for the given parameters |
2016 | * @dump_mpath: dump mesh path callback -- resume dump at index @idx |
2017 | * @join_mesh: join the mesh network with the specified parameters |
2018 | * (invoked with the wireless_dev mutex held) |
2019 | * @leave_mesh: leave the current mesh network |
2020 | * (invoked with the wireless_dev mutex held) |
2021 | * |
2022 | * @get_mesh_config: Get the current mesh configuration |
2023 | * |
2024 | * @update_mesh_config: Update mesh parameters on a running mesh. |
2025 | * The mask is a bitfield which tells us which parameters to |
2026 | * set, and which to leave alone. |
2027 | * |
2028 | * @change_bss: Modify parameters for a given BSS. |
2029 | * |
2030 | * @set_txq_params: Set TX queue parameters |
2031 | * |
2032 | * @libertas_set_mesh_channel: Only for backward compatibility for libertas, |
2033 | * as it doesn't implement join_mesh and needs to set the channel to |
2034 | * join the mesh instead. |
2035 | * |
2036 | * @set_monitor_channel: Set the monitor mode channel for the device. If other |
2037 | * interfaces are active this callback should reject the configuration. |
2038 | * If no interfaces are active or the device is down, the channel should |
2039 | * be stored for when a monitor interface becomes active. |
2040 | * |
2041 | * @scan: Request to do a scan. If returning zero, the scan request is given |
2042 | * the driver, and will be valid until passed to cfg80211_scan_done(). |
2043 | * For scan results, call cfg80211_inform_bss(); you can call this outside |
2044 | * the scan/scan_done bracket too. |
2045 | * |
2046 | * @auth: Request to authenticate with the specified peer |
2047 | * (invoked with the wireless_dev mutex held) |
2048 | * @assoc: Request to (re)associate with the specified peer |
2049 | * (invoked with the wireless_dev mutex held) |
2050 | * @deauth: Request to deauthenticate from the specified peer |
2051 | * (invoked with the wireless_dev mutex held) |
2052 | * @disassoc: Request to disassociate from the specified peer |
2053 | * (invoked with the wireless_dev mutex held) |
2054 | * |
2055 | * @connect: Connect to the ESS with the specified parameters. When connected, |
2056 | * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. |
2057 | * If the connection fails for some reason, call cfg80211_connect_result() |
2058 | * with the status from the AP. |
2059 | * (invoked with the wireless_dev mutex held) |
2060 | * @disconnect: Disconnect from the BSS/ESS. |
2061 | * (invoked with the wireless_dev mutex held) |
2062 | * |
2063 | * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call |
2064 | * cfg80211_ibss_joined(), also call that function when changing BSSID due |
2065 | * to a merge. |
2066 | * (invoked with the wireless_dev mutex held) |
2067 | * @leave_ibss: Leave the IBSS. |
2068 | * (invoked with the wireless_dev mutex held) |
2069 | * |
2070 | * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or |
2071 | * MESH mode) |
2072 | * |
2073 | * @set_wiphy_params: Notify that wiphy parameters have changed; |
2074 | * @changed bitfield (see &enum wiphy_params_flags) describes which values |
2075 | * have changed. The actual parameter values are available in |
2076 | * struct wiphy. If returning an error, no value should be changed. |
2077 | * |
2078 | * @set_tx_power: set the transmit power according to the parameters, |
2079 | * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The |
2080 | * wdev may be %NULL if power was set for the wiphy, and will |
2081 | * always be %NULL unless the driver supports per-vif TX power |
2082 | * (as advertised by the nl80211 feature flag.) |
2083 | * @get_tx_power: store the current TX power into the dbm variable; |
2084 | * return 0 if successful |
2085 | * |
2086 | * @set_wds_peer: set the WDS peer for a WDS interface |
2087 | * |
2088 | * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting |
2089 | * functions to adjust rfkill hw state |
2090 | * |
2091 | * @dump_survey: get site survey information. |
2092 | * |
2093 | * @remain_on_channel: Request the driver to remain awake on the specified |
2094 | * channel for the specified duration to complete an off-channel |
2095 | * operation (e.g., public action frame exchange). When the driver is |
2096 | * ready on the requested channel, it must indicate this with an event |
2097 | * notification by calling cfg80211_ready_on_channel(). |
2098 | * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. |
2099 | * This allows the operation to be terminated prior to timeout based on |
2100 | * the duration value. |
2101 | * @mgmt_tx: Transmit a management frame. |
2102 | * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management |
2103 | * frame on another channel |
2104 | * |
2105 | * @testmode_cmd: run a test mode command; @wdev may be %NULL |
2106 | * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be |
2107 | * used by the function, but 0 and 1 must not be touched. Additionally, |
2108 | * return error codes other than -ENOBUFS and -ENOENT will terminate the |
2109 | * dump and return to userspace with an error, so be careful. If any data |
2110 | * was passed in from userspace then the data/len arguments will be present |
2111 | * and point to the data contained in %NL80211_ATTR_TESTDATA. |
2112 | * |
2113 | * @set_bitrate_mask: set the bitrate mask configuration |
2114 | * |
2115 | * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac |
2116 | * devices running firmwares capable of generating the (re) association |
2117 | * RSN IE. It allows for faster roaming between WPA2 BSSIDs. |
2118 | * @del_pmksa: Delete a cached PMKID. |
2119 | * @flush_pmksa: Flush all cached PMKIDs. |
2120 | * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 |
2121 | * allows the driver to adjust the dynamic ps timeout value. |
2122 | * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. |
2123 | * @set_cqm_txe_config: Configure connection quality monitor TX error |
2124 | * thresholds. |
2125 | * @sched_scan_start: Tell the driver to start a scheduled scan. |
2126 | * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. |
2127 | * |
2128 | * @mgmt_frame_register: Notify driver that a management frame type was |
2129 | * registered. Note that this callback may not sleep, and cannot run |
2130 | * concurrently with itself. |
2131 | * |
2132 | * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. |
2133 | * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may |
2134 | * reject TX/RX mask combinations they cannot support by returning -EINVAL |
2135 | * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). |
2136 | * |
2137 | * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). |
2138 | * |
2139 | * @set_ringparam: Set tx and rx ring sizes. |
2140 | * |
2141 | * @get_ringparam: Get tx and rx ring current and maximum sizes. |
2142 | * |
2143 | * @tdls_mgmt: Transmit a TDLS management frame. |
2144 | * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). |
2145 | * |
2146 | * @probe_client: probe an associated client, must return a cookie that it |
2147 | * later passes to cfg80211_probe_status(). |
2148 | * |
2149 | * @set_noack_map: Set the NoAck Map for the TIDs. |
2150 | * |
2151 | * @get_et_sset_count: Ethtool API to get string-set count. |
2152 | * See @ethtool_ops.get_sset_count |
2153 | * |
2154 | * @get_et_stats: Ethtool API to get a set of u64 stats. |
2155 | * See @ethtool_ops.get_ethtool_stats |
2156 | * |
2157 | * @get_et_strings: Ethtool API to get a set of strings to describe stats |
2158 | * and perhaps other supported types of ethtool data-sets. |
2159 | * See @ethtool_ops.get_strings |
2160 | * |
2161 | * @get_channel: Get the current operating channel for the virtual interface. |
2162 | * For monitor interfaces, it should return %NULL unless there's a single |
2163 | * current monitoring channel. |
2164 | * |
2165 | * @start_p2p_device: Start the given P2P device. |
2166 | * @stop_p2p_device: Stop the given P2P device. |
2167 | * |
2168 | * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode. |
2169 | * Parameters include ACL policy, an array of MAC address of stations |
2170 | * and the number of MAC addresses. If there is already a list in driver |
2171 | * this new list replaces the existing one. Driver has to clear its ACL |
2172 | * when number of MAC addresses entries is passed as 0. Drivers which |
2173 | * advertise the support for MAC based ACL have to implement this callback. |
2174 | * |
2175 | * @start_radar_detection: Start radar detection in the driver. |
2176 | * |
2177 | * @update_ft_ies: Provide updated Fast BSS Transition information to the |
2178 | * driver. If the SME is in the driver/firmware, this information can be |
2179 | * used in building Authentication and Reassociation Request frames. |
2180 | * |
2181 | * @crit_proto_start: Indicates a critical protocol needs more link reliability |
2182 | * for a given duration (milliseconds). The protocol is provided so the |
2183 | * driver can take the most appropriate actions. |
2184 | * @crit_proto_stop: Indicates critical protocol no longer needs increased link |
2185 | * reliability. This operation can not fail. |
2186 | * @set_coalesce: Set coalesce parameters. |
2187 | * |
2188 | * @channel_switch: initiate channel-switch procedure (with CSA) |
2189 | */ |
2190 | struct cfg80211_ops { |
2191 | int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); |
2192 | int (*resume)(struct wiphy *wiphy); |
2193 | void (*set_wakeup)(struct wiphy *wiphy, bool enabled); |
2194 | |
2195 | struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, |
2196 | const char *name, |
2197 | enum nl80211_iftype type, |
2198 | u32 *flags, |
2199 | struct vif_params *params); |
2200 | int (*del_virtual_intf)(struct wiphy *wiphy, |
2201 | struct wireless_dev *wdev); |
2202 | int (*change_virtual_intf)(struct wiphy *wiphy, |
2203 | struct net_device *dev, |
2204 | enum nl80211_iftype type, u32 *flags, |
2205 | struct vif_params *params); |
2206 | |
2207 | int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, |
2208 | u8 key_index, bool pairwise, const u8 *mac_addr, |
2209 | struct key_params *params); |
2210 | int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, |
2211 | u8 key_index, bool pairwise, const u8 *mac_addr, |
2212 | void *cookie, |
2213 | void (*callback)(void *cookie, struct key_params*)); |
2214 | int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, |
2215 | u8 key_index, bool pairwise, const u8 *mac_addr); |
2216 | int (*set_default_key)(struct wiphy *wiphy, |
2217 | struct net_device *netdev, |
2218 | u8 key_index, bool unicast, bool multicast); |
2219 | int (*set_default_mgmt_key)(struct wiphy *wiphy, |
2220 | struct net_device *netdev, |
2221 | u8 key_index); |
2222 | |
2223 | int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, |
2224 | struct cfg80211_ap_settings *settings); |
2225 | int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, |
2226 | struct cfg80211_beacon_data *info); |
2227 | int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev); |
2228 | |
2229 | |
2230 | int (*add_station)(struct wiphy *wiphy, struct net_device *dev, |
2231 | u8 *mac, struct station_parameters *params); |
2232 | int (*del_station)(struct wiphy *wiphy, struct net_device *dev, |
2233 | u8 *mac); |
2234 | int (*change_station)(struct wiphy *wiphy, struct net_device *dev, |
2235 | u8 *mac, struct station_parameters *params); |
2236 | int (*get_station)(struct wiphy *wiphy, struct net_device *dev, |
2237 | u8 *mac, struct station_info *sinfo); |
2238 | int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, |
2239 | int idx, u8 *mac, struct station_info *sinfo); |
2240 | |
2241 | int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, |
2242 | u8 *dst, u8 *next_hop); |
2243 | int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, |
2244 | u8 *dst); |
2245 | int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, |
2246 | u8 *dst, u8 *next_hop); |
2247 | int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, |
2248 | u8 *dst, u8 *next_hop, |
2249 | struct mpath_info *pinfo); |
2250 | int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, |
2251 | int idx, u8 *dst, u8 *next_hop, |
2252 | struct mpath_info *pinfo); |
2253 | int (*get_mesh_config)(struct wiphy *wiphy, |
2254 | struct net_device *dev, |
2255 | struct mesh_config *conf); |
2256 | int (*update_mesh_config)(struct wiphy *wiphy, |
2257 | struct net_device *dev, u32 mask, |
2258 | const struct mesh_config *nconf); |
2259 | int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, |
2260 | const struct mesh_config *conf, |
2261 | const struct mesh_setup *setup); |
2262 | int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); |
2263 | |
2264 | int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, |
2265 | struct bss_parameters *params); |
2266 | |
2267 | int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, |
2268 | struct ieee80211_txq_params *params); |
2269 | |
2270 | int (*libertas_set_mesh_channel)(struct wiphy *wiphy, |
2271 | struct net_device *dev, |
2272 | struct ieee80211_channel *chan); |
2273 | |
2274 | int (*set_monitor_channel)(struct wiphy *wiphy, |
2275 | struct cfg80211_chan_def *chandef); |
2276 | |
2277 | int (*scan)(struct wiphy *wiphy, |
2278 | struct cfg80211_scan_request *request); |
2279 | |
2280 | int (*auth)(struct wiphy *wiphy, struct net_device *dev, |
2281 | struct cfg80211_auth_request *req); |
2282 | int (*assoc)(struct wiphy *wiphy, struct net_device *dev, |
2283 | struct cfg80211_assoc_request *req); |
2284 | int (*deauth)(struct wiphy *wiphy, struct net_device *dev, |
2285 | struct cfg80211_deauth_request *req); |
2286 | int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, |
2287 | struct cfg80211_disassoc_request *req); |
2288 | |
2289 | int (*connect)(struct wiphy *wiphy, struct net_device *dev, |
2290 | struct cfg80211_connect_params *sme); |
2291 | int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, |
2292 | u16 reason_code); |
2293 | |
2294 | int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, |
2295 | struct cfg80211_ibss_params *params); |
2296 | int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); |
2297 | |
2298 | int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev, |
2299 | int rate[IEEE80211_NUM_BANDS]); |
2300 | |
2301 | int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); |
2302 | |
2303 | int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, |
2304 | enum nl80211_tx_power_setting type, int mbm); |
2305 | int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, |
2306 | int *dbm); |
2307 | |
2308 | int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, |
2309 | const u8 *addr); |
2310 | |
2311 | void (*rfkill_poll)(struct wiphy *wiphy); |
2312 | |
2313 | #ifdef CONFIG_NL80211_TESTMODE |
2314 | int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev, |
2315 | void *data, int len); |
2316 | int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, |
2317 | struct netlink_callback *cb, |
2318 | void *data, int len); |
2319 | #endif |
2320 | |
2321 | int (*set_bitrate_mask)(struct wiphy *wiphy, |
2322 | struct net_device *dev, |
2323 | const u8 *peer, |
2324 | const struct cfg80211_bitrate_mask *mask); |
2325 | |
2326 | int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, |
2327 | int idx, struct survey_info *info); |
2328 | |
2329 | int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, |
2330 | struct cfg80211_pmksa *pmksa); |
2331 | int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, |
2332 | struct cfg80211_pmksa *pmksa); |
2333 | int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); |
2334 | |
2335 | int (*remain_on_channel)(struct wiphy *wiphy, |
2336 | struct wireless_dev *wdev, |
2337 | struct ieee80211_channel *chan, |
2338 | unsigned int duration, |
2339 | u64 *cookie); |
2340 | int (*cancel_remain_on_channel)(struct wiphy *wiphy, |
2341 | struct wireless_dev *wdev, |
2342 | u64 cookie); |
2343 | |
2344 | int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, |
2345 | struct ieee80211_channel *chan, bool offchan, |
2346 | unsigned int wait, const u8 *buf, size_t len, |
2347 | bool no_cck, bool dont_wait_for_ack, u64 *cookie); |
2348 | int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, |
2349 | struct wireless_dev *wdev, |
2350 | u64 cookie); |
2351 | |
2352 | int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, |
2353 | bool enabled, int timeout); |
2354 | |
2355 | int (*set_cqm_rssi_config)(struct wiphy *wiphy, |
2356 | struct net_device *dev, |
2357 | s32 rssi_thold, u32 rssi_hyst); |
2358 | |
2359 | int (*set_cqm_txe_config)(struct wiphy *wiphy, |
2360 | struct net_device *dev, |
2361 | u32 rate, u32 pkts, u32 intvl); |
2362 | |
2363 | void (*mgmt_frame_register)(struct wiphy *wiphy, |
2364 | struct wireless_dev *wdev, |
2365 | u16 frame_type, bool reg); |
2366 | |
2367 | int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); |
2368 | int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); |
2369 | |
2370 | int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); |
2371 | void (*get_ringparam)(struct wiphy *wiphy, |
2372 | u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); |
2373 | |
2374 | int (*sched_scan_start)(struct wiphy *wiphy, |
2375 | struct net_device *dev, |
2376 | struct cfg80211_sched_scan_request *request); |
2377 | int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); |
2378 | |
2379 | int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, |
2380 | struct cfg80211_gtk_rekey_data *data); |
2381 | |
2382 | int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, |
2383 | u8 *peer, u8 action_code, u8 dialog_token, |
2384 | u16 status_code, const u8 *buf, size_t len); |
2385 | int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, |
2386 | u8 *peer, enum nl80211_tdls_operation oper); |
2387 | |
2388 | int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, |
2389 | const u8 *peer, u64 *cookie); |
2390 | |
2391 | int (*set_noack_map)(struct wiphy *wiphy, |
2392 | struct net_device *dev, |
2393 | u16 noack_map); |
2394 | |
2395 | int (*get_et_sset_count)(struct wiphy *wiphy, |
2396 | struct net_device *dev, int sset); |
2397 | void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev, |
2398 | struct ethtool_stats *stats, u64 *data); |
2399 | void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev, |
2400 | u32 sset, u8 *data); |
2401 | |
2402 | int (*get_channel)(struct wiphy *wiphy, |
2403 | struct wireless_dev *wdev, |
2404 | struct cfg80211_chan_def *chandef); |
2405 | |
2406 | int (*start_p2p_device)(struct wiphy *wiphy, |
2407 | struct wireless_dev *wdev); |
2408 | void (*stop_p2p_device)(struct wiphy *wiphy, |
2409 | struct wireless_dev *wdev); |
2410 | |
2411 | int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev, |
2412 | const struct cfg80211_acl_data *params); |
2413 | |
2414 | int (*start_radar_detection)(struct wiphy *wiphy, |
2415 | struct net_device *dev, |
2416 | struct cfg80211_chan_def *chandef); |
2417 | int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev, |
2418 | struct cfg80211_update_ft_ies_params *ftie); |
2419 | int (*crit_proto_start)(struct wiphy *wiphy, |
2420 | struct wireless_dev *wdev, |
2421 | enum nl80211_crit_proto_id protocol, |
2422 | u16 duration); |
2423 | void (*crit_proto_stop)(struct wiphy *wiphy, |
2424 | struct wireless_dev *wdev); |
2425 | int (*set_coalesce)(struct wiphy *wiphy, |
2426 | struct cfg80211_coalesce *coalesce); |
2427 | |
2428 | int (*channel_switch)(struct wiphy *wiphy, |
2429 | struct net_device *dev, |
2430 | struct cfg80211_csa_settings *params); |
2431 | }; |
2432 | |
2433 | /* |
2434 | * wireless hardware and networking interfaces structures |
2435 | * and registration/helper functions |
2436 | */ |
2437 | |
2438 | /** |
2439 | * enum wiphy_flags - wiphy capability flags |
2440 | * |
2441 | * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device |
2442 | * has its own custom regulatory domain and cannot identify the |
2443 | * ISO / IEC 3166 alpha2 it belongs to. When this is enabled |
2444 | * we will disregard the first regulatory hint (when the |
2445 | * initiator is %REGDOM_SET_BY_CORE). |
2446 | * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will |
2447 | * ignore regulatory domain settings until it gets its own regulatory |
2448 | * domain via its regulatory_hint() unless the regulatory hint is |
2449 | * from a country IE. After its gets its own regulatory domain it will |
2450 | * only allow further regulatory domain settings to further enhance |
2451 | * compliance. For example if channel 13 and 14 are disabled by this |
2452 | * regulatory domain no user regulatory domain can enable these channels |
2453 | * at a later time. This can be used for devices which do not have |
2454 | * calibration information guaranteed for frequencies or settings |
2455 | * outside of its regulatory domain. If used in combination with |
2456 | * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings |
2457 | * will be followed. |
2458 | * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure |
2459 | * that passive scan flags and beaconing flags may not be lifted by |
2460 | * cfg80211 due to regulatory beacon hints. For more information on beacon |
2461 | * hints read the documenation for regulatory_hint_found_beacon() |
2462 | * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this |
2463 | * wiphy at all |
2464 | * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled |
2465 | * by default -- this flag will be set depending on the kernel's default |
2466 | * on wiphy_new(), but can be changed by the driver if it has a good |
2467 | * reason to override the default |
2468 | * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station |
2469 | * on a VLAN interface) |
2470 | * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station |
2471 | * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the |
2472 | * control port protocol ethertype. The device also honours the |
2473 | * control_port_no_encrypt flag. |
2474 | * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. |
2475 | * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing |
2476 | * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. |
2477 | * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. |
2478 | * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the |
2479 | * firmware. |
2480 | * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. |
2481 | * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. |
2482 | * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) |
2483 | * link setup/discovery operations internally. Setup, discovery and |
2484 | * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT |
2485 | * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be |
2486 | * used for asking the driver/firmware to perform a TDLS operation. |
2487 | * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME |
2488 | * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes |
2489 | * when there are virtual interfaces in AP mode by calling |
2490 | * cfg80211_report_obss_beacon(). |
2491 | * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device |
2492 | * responds to probe-requests in hardware. |
2493 | * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. |
2494 | * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. |
2495 | * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels. |
2496 | * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in |
2497 | * beaconing mode (AP, IBSS, Mesh, ...). |
2498 | */ |
2499 | enum wiphy_flags { |
2500 | WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), |
2501 | WIPHY_FLAG_STRICT_REGULATORY = BIT(1), |
2502 | WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), |
2503 | WIPHY_FLAG_NETNS_OK = BIT(3), |
2504 | WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), |
2505 | WIPHY_FLAG_4ADDR_AP = BIT(5), |
2506 | WIPHY_FLAG_4ADDR_STATION = BIT(6), |
2507 | WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), |
2508 | WIPHY_FLAG_IBSS_RSN = BIT(8), |
2509 | WIPHY_FLAG_MESH_AUTH = BIT(10), |
2510 | WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), |
2511 | /* use hole at 12 */ |
2512 | WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), |
2513 | WIPHY_FLAG_AP_UAPSD = BIT(14), |
2514 | WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), |
2515 | WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), |
2516 | WIPHY_FLAG_HAVE_AP_SME = BIT(17), |
2517 | WIPHY_FLAG_REPORTS_OBSS = BIT(18), |
2518 | WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), |
2519 | WIPHY_FLAG_OFFCHAN_TX = BIT(20), |
2520 | WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), |
2521 | WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22), |
2522 | WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23), |
2523 | }; |
2524 | |
2525 | /** |
2526 | * struct ieee80211_iface_limit - limit on certain interface types |
2527 | * @max: maximum number of interfaces of these types |
2528 | * @types: interface types (bits) |
2529 | */ |
2530 | struct ieee80211_iface_limit { |
2531 | u16 max; |
2532 | u16 types; |
2533 | }; |
2534 | |
2535 | /** |
2536 | * struct ieee80211_iface_combination - possible interface combination |
2537 | * @limits: limits for the given interface types |
2538 | * @n_limits: number of limitations |
2539 | * @num_different_channels: can use up to this many different channels |
2540 | * @max_interfaces: maximum number of interfaces in total allowed in this |
2541 | * group |
2542 | * @beacon_int_infra_match: In this combination, the beacon intervals |
2543 | * between infrastructure and AP types must match. This is required |
2544 | * only in special cases. |
2545 | * @radar_detect_widths: bitmap of channel widths supported for radar detection |
2546 | * |
2547 | * These examples can be expressed as follows: |
2548 | * |
2549 | * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: |
2550 | * |
2551 | * struct ieee80211_iface_limit limits1[] = { |
2552 | * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, |
2553 | * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, |
2554 | * }; |
2555 | * struct ieee80211_iface_combination combination1 = { |
2556 | * .limits = limits1, |
2557 | * .n_limits = ARRAY_SIZE(limits1), |
2558 | * .max_interfaces = 2, |
2559 | * .beacon_int_infra_match = true, |
2560 | * }; |
2561 | * |
2562 | * |
2563 | * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: |
2564 | * |
2565 | * struct ieee80211_iface_limit limits2[] = { |
2566 | * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | |
2567 | * BIT(NL80211_IFTYPE_P2P_GO), }, |
2568 | * }; |
2569 | * struct ieee80211_iface_combination combination2 = { |
2570 | * .limits = limits2, |
2571 | * .n_limits = ARRAY_SIZE(limits2), |
2572 | * .max_interfaces = 8, |
2573 | * .num_different_channels = 1, |
2574 | * }; |
2575 | * |
2576 | * |
2577 | * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. |
2578 | * This allows for an infrastructure connection and three P2P connections. |
2579 | * |
2580 | * struct ieee80211_iface_limit limits3[] = { |
2581 | * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, |
2582 | * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | |
2583 | * BIT(NL80211_IFTYPE_P2P_CLIENT), }, |
2584 | * }; |
2585 | * struct ieee80211_iface_combination combination3 = { |
2586 | * .limits = limits3, |
2587 | * .n_limits = ARRAY_SIZE(limits3), |
2588 | * .max_interfaces = 4, |
2589 | * .num_different_channels = 2, |
2590 | * }; |
2591 | */ |
2592 | struct ieee80211_iface_combination { |
2593 | const struct ieee80211_iface_limit *limits; |
2594 | u32 num_different_channels; |
2595 | u16 max_interfaces; |
2596 | u8 n_limits; |
2597 | bool beacon_int_infra_match; |
2598 | u8 radar_detect_widths; |
2599 | }; |
2600 | |
2601 | struct ieee80211_txrx_stypes { |
2602 | u16 tx, rx; |
2603 | }; |
2604 | |
2605 | /** |
2606 | * enum wiphy_wowlan_support_flags - WoWLAN support flags |
2607 | * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" |
2608 | * trigger that keeps the device operating as-is and |
2609 | * wakes up the host on any activity, for example a |
2610 | * received packet that passed filtering; note that the |
2611 | * packet should be preserved in that case |
2612 | * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet |
2613 | * (see nl80211.h) |
2614 | * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect |
2615 | * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep |
2616 | * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure |
2617 | * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request |
2618 | * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure |
2619 | * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release |
2620 | */ |
2621 | enum wiphy_wowlan_support_flags { |
2622 | WIPHY_WOWLAN_ANY = BIT(0), |
2623 | WIPHY_WOWLAN_MAGIC_PKT = BIT(1), |
2624 | WIPHY_WOWLAN_DISCONNECT = BIT(2), |
2625 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), |
2626 | WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), |
2627 | WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), |
2628 | WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), |
2629 | WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), |
2630 | }; |
2631 | |
2632 | struct wiphy_wowlan_tcp_support { |
2633 | const struct nl80211_wowlan_tcp_data_token_feature *tok; |
2634 | u32 data_payload_max; |
2635 | u32 data_interval_max; |
2636 | u32 wake_payload_max; |
2637 | bool seq; |
2638 | }; |
2639 | |
2640 | /** |
2641 | * struct wiphy_wowlan_support - WoWLAN support data |
2642 | * @flags: see &enum wiphy_wowlan_support_flags |
2643 | * @n_patterns: number of supported wakeup patterns |
2644 | * (see nl80211.h for the pattern definition) |
2645 | * @pattern_max_len: maximum length of each pattern |
2646 | * @pattern_min_len: minimum length of each pattern |
2647 | * @max_pkt_offset: maximum Rx packet offset |
2648 | * @tcp: TCP wakeup support information |
2649 | */ |
2650 | struct wiphy_wowlan_support { |
2651 | u32 flags; |
2652 | int n_patterns; |
2653 | int pattern_max_len; |
2654 | int pattern_min_len; |
2655 | int max_pkt_offset; |
2656 | const struct wiphy_wowlan_tcp_support *tcp; |
2657 | }; |
2658 | |
2659 | /** |
2660 | * struct wiphy_coalesce_support - coalesce support data |
2661 | * @n_rules: maximum number of coalesce rules |
2662 | * @max_delay: maximum supported coalescing delay in msecs |
2663 | * @n_patterns: number of supported patterns in a rule |
2664 | * (see nl80211.h for the pattern definition) |
2665 | * @pattern_max_len: maximum length of each pattern |
2666 | * @pattern_min_len: minimum length of each pattern |
2667 | * @max_pkt_offset: maximum Rx packet offset |
2668 | */ |
2669 | struct wiphy_coalesce_support { |
2670 | int n_rules; |
2671 | int max_delay; |
2672 | int n_patterns; |
2673 | int pattern_max_len; |
2674 | int pattern_min_len; |
2675 | int max_pkt_offset; |
2676 | }; |
2677 | |
2678 | /** |
2679 | * struct wiphy - wireless hardware description |
2680 | * @reg_notifier: the driver's regulatory notification callback, |
2681 | * note that if your driver uses wiphy_apply_custom_regulatory() |
2682 | * the reg_notifier's request can be passed as NULL |
2683 | * @regd: the driver's regulatory domain, if one was requested via |
2684 | * the regulatory_hint() API. This can be used by the driver |
2685 | * on the reg_notifier() if it chooses to ignore future |
2686 | * regulatory domain changes caused by other drivers. |
2687 | * @signal_type: signal type reported in &struct cfg80211_bss. |
2688 | * @cipher_suites: supported cipher suites |
2689 | * @n_cipher_suites: number of supported cipher suites |
2690 | * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) |
2691 | * @retry_long: Retry limit for long frames (dot11LongRetryLimit) |
2692 | * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); |
2693 | * -1 = fragmentation disabled, only odd values >= 256 used |
2694 | * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled |
2695 | * @_net: the network namespace this wiphy currently lives in |
2696 | * @perm_addr: permanent MAC address of this device |
2697 | * @addr_mask: If the device supports multiple MAC addresses by masking, |
2698 | * set this to a mask with variable bits set to 1, e.g. if the last |
2699 | * four bits are variable then set it to 00:...:00:0f. The actual |
2700 | * variable bits shall be determined by the interfaces added, with |
2701 | * interfaces not matching the mask being rejected to be brought up. |
2702 | * @n_addresses: number of addresses in @addresses. |
2703 | * @addresses: If the device has more than one address, set this pointer |
2704 | * to a list of addresses (6 bytes each). The first one will be used |
2705 | * by default for perm_addr. In this case, the mask should be set to |
2706 | * all-zeroes. In this case it is assumed that the device can handle |
2707 | * the same number of arbitrary MAC addresses. |
2708 | * @registered: protects ->resume and ->suspend sysfs callbacks against |
2709 | * unregister hardware |
2710 | * @debugfsdir: debugfs directory used for this wiphy, will be renamed |
2711 | * automatically on wiphy renames |
2712 | * @dev: (virtual) struct device for this wiphy |
2713 | * @registered: helps synchronize suspend/resume with wiphy unregister |
2714 | * @wext: wireless extension handlers |
2715 | * @priv: driver private data (sized according to wiphy_new() parameter) |
2716 | * @interface_modes: bitmask of interfaces types valid for this wiphy, |
2717 | * must be set by driver |
2718 | * @iface_combinations: Valid interface combinations array, should not |
2719 | * list single interface types. |
2720 | * @n_iface_combinations: number of entries in @iface_combinations array. |
2721 | * @software_iftypes: bitmask of software interface types, these are not |
2722 | * subject to any restrictions since they are purely managed in SW. |
2723 | * @flags: wiphy flags, see &enum wiphy_flags |
2724 | * @features: features advertised to nl80211, see &enum nl80211_feature_flags. |
2725 | * @bss_priv_size: each BSS struct has private data allocated with it, |
2726 | * this variable determines its size |
2727 | * @max_scan_ssids: maximum number of SSIDs the device can scan for in |
2728 | * any given scan |
2729 | * @max_sched_scan_ssids: maximum number of SSIDs the device can scan |
2730 | * for in any given scheduled scan |
2731 | * @max_match_sets: maximum number of match sets the device can handle |
2732 | * when performing a scheduled scan, 0 if filtering is not |
2733 | * supported. |
2734 | * @max_scan_ie_len: maximum length of user-controlled IEs device can |
2735 | * add to probe request frames transmitted during a scan, must not |
2736 | * include fixed IEs like supported rates |
2737 | * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled |
2738 | * scans |
2739 | * @coverage_class: current coverage class |
2740 | * @fw_version: firmware version for ethtool reporting |
2741 | * @hw_version: hardware version for ethtool reporting |
2742 | * @max_num_pmkids: maximum number of PMKIDs supported by device |
2743 | * @privid: a pointer that drivers can use to identify if an arbitrary |
2744 | * wiphy is theirs, e.g. in global notifiers |
2745 | * @bands: information about bands/channels supported by this device |
2746 | * |
2747 | * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or |
2748 | * transmitted through nl80211, points to an array indexed by interface |
2749 | * type |
2750 | * |
2751 | * @available_antennas_tx: bitmap of antennas which are available to be |
2752 | * configured as TX antennas. Antenna configuration commands will be |
2753 | * rejected unless this or @available_antennas_rx is set. |
2754 | * |
2755 | * @available_antennas_rx: bitmap of antennas which are available to be |
2756 | * configured as RX antennas. Antenna configuration commands will be |
2757 | * rejected unless this or @available_antennas_tx is set. |
2758 | * |
2759 | * @probe_resp_offload: |
2760 | * Bitmap of supported protocols for probe response offloading. |
2761 | * See &enum nl80211_probe_resp_offload_support_attr. Only valid |
2762 | * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. |
2763 | * |
2764 | * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation |
2765 | * may request, if implemented. |
2766 | * |
2767 | * @wowlan: WoWLAN support information |
2768 | * @wowlan_config: current WoWLAN configuration; this should usually not be |
2769 | * used since access to it is necessarily racy, use the parameter passed |
2770 | * to the suspend() operation instead. |
2771 | * |
2772 | * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. |
2773 | * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. |
2774 | * If null, then none can be over-ridden. |
2775 | * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden. |
2776 | * If null, then none can be over-ridden. |
2777 | * |
2778 | * @max_acl_mac_addrs: Maximum number of MAC addresses that the device |
2779 | * supports for ACL. |
2780 | * |
2781 | * @extended_capabilities: extended capabilities supported by the driver, |
2782 | * additional capabilities might be supported by userspace; these are |
2783 | * the 802.11 extended capabilities ("Extended Capabilities element") |
2784 | * and are in the same format as in the information element. See |
2785 | * 802.11-2012 8.4.2.29 for the defined fields. |
2786 | * @extended_capabilities_mask: mask of the valid values |
2787 | * @extended_capabilities_len: length of the extended capabilities |
2788 | * @coalesce: packet coalescing support information |
2789 | */ |
2790 | struct wiphy { |
2791 | /* assign these fields before you register the wiphy */ |
2792 | |
2793 | /* permanent MAC address(es) */ |
2794 | u8 perm_addr[ETH_ALEN]; |
2795 | u8 addr_mask[ETH_ALEN]; |
2796 | |
2797 | struct mac_address *addresses; |
2798 | |
2799 | const struct ieee80211_txrx_stypes *mgmt_stypes; |
2800 | |
2801 | const struct ieee80211_iface_combination *iface_combinations; |
2802 | int n_iface_combinations; |
2803 | u16 software_iftypes; |
2804 | |
2805 | u16 n_addresses; |
2806 | |
2807 | /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ |
2808 | u16 interface_modes; |
2809 | |
2810 | u16 max_acl_mac_addrs; |
2811 | |
2812 | u32 flags, features; |
2813 | |
2814 | u32 ap_sme_capa; |
2815 | |
2816 | enum cfg80211_signal_type signal_type; |
2817 | |
2818 | int bss_priv_size; |
2819 | u8 max_scan_ssids; |
2820 | u8 max_sched_scan_ssids; |
2821 | u8 max_match_sets; |
2822 | u16 max_scan_ie_len; |
2823 | u16 max_sched_scan_ie_len; |
2824 | |
2825 | int n_cipher_suites; |
2826 | const u32 *cipher_suites; |
2827 | |
2828 | u8 retry_short; |
2829 | u8 retry_long; |
2830 | u32 frag_threshold; |
2831 | u32 rts_threshold; |
2832 | u8 coverage_class; |
2833 | |
2834 | char fw_version[ETHTOOL_FWVERS_LEN]; |
2835 | u32 hw_version; |
2836 | |
2837 | #ifdef CONFIG_PM |
2838 | const struct wiphy_wowlan_support *wowlan; |
2839 | struct cfg80211_wowlan *wowlan_config; |
2840 | #endif |
2841 | |
2842 | u16 max_remain_on_channel_duration; |
2843 | |
2844 | u8 max_num_pmkids; |
2845 | |
2846 | u32 available_antennas_tx; |
2847 | u32 available_antennas_rx; |
2848 | |
2849 | /* |
2850 | * Bitmap of supported protocols for probe response offloading |
2851 | * see &enum nl80211_probe_resp_offload_support_attr. Only valid |
2852 | * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. |
2853 | */ |
2854 | u32 probe_resp_offload; |
2855 | |
2856 | const u8 *extended_capabilities, *extended_capabilities_mask; |
2857 | u8 extended_capabilities_len; |
2858 | |
2859 | /* If multiple wiphys are registered and you're handed e.g. |
2860 | * a regular netdev with assigned ieee80211_ptr, you won't |
2861 | * know whether it points to a wiphy your driver has registered |
2862 | * or not. Assign this to something global to your driver to |
2863 | * help determine whether you own this wiphy or not. */ |
2864 | const void *privid; |
2865 | |
2866 | struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; |
2867 | |
2868 | /* Lets us get back the wiphy on the callback */ |
2869 | void (*reg_notifier)(struct wiphy *wiphy, |
2870 | struct regulatory_request *request); |
2871 | |
2872 | /* fields below are read-only, assigned by cfg80211 */ |
2873 | |
2874 | const struct ieee80211_regdomain __rcu *regd; |
2875 | |
2876 | /* the item in /sys/class/ieee80211/ points to this, |
2877 | * you need use set_wiphy_dev() (see below) */ |
2878 | struct device dev; |
2879 | |
2880 | /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ |
2881 | bool registered; |
2882 | |
2883 | /* dir in debugfs: ieee80211/<wiphyname> */ |
2884 | struct dentry *debugfsdir; |
2885 | |
2886 | const struct ieee80211_ht_cap *ht_capa_mod_mask; |
2887 | const struct ieee80211_vht_cap *vht_capa_mod_mask; |
2888 | |
2889 | #ifdef CONFIG_NET_NS |
2890 | /* the network namespace this phy lives in currently */ |
2891 | struct net *_net; |
2892 | #endif |
2893 | |
2894 | #ifdef CONFIG_CFG80211_WEXT |
2895 | const struct iw_handler_def *wext; |
2896 | #endif |
2897 | |
2898 | const struct wiphy_coalesce_support *coalesce; |
2899 | |
2900 | char priv[0] __aligned(NETDEV_ALIGN); |
2901 | }; |
2902 | |
2903 | static inline struct net *wiphy_net(struct wiphy *wiphy) |
2904 | { |
2905 | return read_pnet(&wiphy->_net); |
2906 | } |
2907 | |
2908 | static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) |
2909 | { |
2910 | write_pnet(&wiphy->_net, net); |
2911 | } |
2912 | |
2913 | /** |
2914 | * wiphy_priv - return priv from wiphy |
2915 | * |
2916 | * @wiphy: the wiphy whose priv pointer to return |
2917 | * Return: The priv of @wiphy. |
2918 | */ |
2919 | static inline void *wiphy_priv(struct wiphy *wiphy) |
2920 | { |
2921 | BUG_ON(!wiphy); |
2922 | return &wiphy->priv; |
2923 | } |
2924 | |
2925 | /** |
2926 | * priv_to_wiphy - return the wiphy containing the priv |
2927 | * |
2928 | * @priv: a pointer previously returned by wiphy_priv |
2929 | * Return: The wiphy of @priv. |
2930 | */ |
2931 | static inline struct wiphy *priv_to_wiphy(void *priv) |
2932 | { |
2933 | BUG_ON(!priv); |
2934 | return container_of(priv, struct wiphy, priv); |
2935 | } |
2936 | |
2937 | /** |
2938 | * set_wiphy_dev - set device pointer for wiphy |
2939 | * |
2940 | * @wiphy: The wiphy whose device to bind |
2941 | * @dev: The device to parent it to |
2942 | */ |
2943 | static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) |
2944 | { |
2945 | wiphy->dev.parent = dev; |
2946 | } |
2947 | |
2948 | /** |
2949 | * wiphy_dev - get wiphy dev pointer |
2950 | * |
2951 | * @wiphy: The wiphy whose device struct to look up |
2952 | * Return: The dev of @wiphy. |
2953 | */ |
2954 | static inline struct device *wiphy_dev(struct wiphy *wiphy) |
2955 | { |
2956 | return wiphy->dev.parent; |
2957 | } |
2958 | |
2959 | /** |
2960 | * wiphy_name - get wiphy name |
2961 | * |
2962 | * @wiphy: The wiphy whose name to return |
2963 | * Return: The name of @wiphy. |
2964 | */ |
2965 | static inline const char *wiphy_name(const struct wiphy *wiphy) |
2966 | { |
2967 | return dev_name(&wiphy->dev); |
2968 | } |
2969 | |
2970 | /** |
2971 | * wiphy_new - create a new wiphy for use with cfg80211 |
2972 | * |
2973 | * @ops: The configuration operations for this device |
2974 | * @sizeof_priv: The size of the private area to allocate |
2975 | * |
2976 | * Create a new wiphy and associate the given operations with it. |
2977 | * @sizeof_priv bytes are allocated for private use. |
2978 | * |
2979 | * Return: A pointer to the new wiphy. This pointer must be |
2980 | * assigned to each netdev's ieee80211_ptr for proper operation. |
2981 | */ |
2982 | struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); |
2983 | |
2984 | /** |
2985 | * wiphy_register - register a wiphy with cfg80211 |
2986 | * |
2987 | * @wiphy: The wiphy to register. |
2988 | * |
2989 | * Return: A non-negative wiphy index or a negative error code. |
2990 | */ |
2991 | int wiphy_register(struct wiphy *wiphy); |
2992 | |
2993 | /** |
2994 | * wiphy_unregister - deregister a wiphy from cfg80211 |
2995 | * |
2996 | * @wiphy: The wiphy to unregister. |
2997 | * |
2998 | * After this call, no more requests can be made with this priv |
2999 | * pointer, but the call may sleep to wait for an outstanding |
3000 | * request that is being handled. |
3001 | */ |
3002 | void wiphy_unregister(struct wiphy *wiphy); |
3003 | |
3004 | /** |
3005 | * wiphy_free - free wiphy |
3006 | * |
3007 | * @wiphy: The wiphy to free |
3008 | */ |
3009 | void wiphy_free(struct wiphy *wiphy); |
3010 | |
3011 | /* internal structs */ |
3012 | struct cfg80211_conn; |
3013 | struct cfg80211_internal_bss; |
3014 | struct cfg80211_cached_keys; |
3015 | |
3016 | /** |
3017 | * struct wireless_dev - wireless device state |
3018 | * |
3019 | * For netdevs, this structure must be allocated by the driver |
3020 | * that uses the ieee80211_ptr field in struct net_device (this |
3021 | * is intentional so it can be allocated along with the netdev.) |
3022 | * It need not be registered then as netdev registration will |
3023 | * be intercepted by cfg80211 to see the new wireless device. |
3024 | * |
3025 | * For non-netdev uses, it must also be allocated by the driver |
3026 | * in response to the cfg80211 callbacks that require it, as |
3027 | * there's no netdev registration in that case it may not be |
3028 | * allocated outside of callback operations that return it. |
3029 | * |
3030 | * @wiphy: pointer to hardware description |
3031 | * @iftype: interface type |
3032 | * @list: (private) Used to collect the interfaces |
3033 | * @netdev: (private) Used to reference back to the netdev, may be %NULL |
3034 | * @identifier: (private) Identifier used in nl80211 to identify this |
3035 | * wireless device if it has no netdev |
3036 | * @current_bss: (private) Used by the internal configuration code |
3037 | * @channel: (private) Used by the internal configuration code to track |
3038 | * the user-set AP, monitor and WDS channel |
3039 | * @preset_chandef: (private) Used by the internal configuration code to |
3040 | * track the channel to be used for AP later |
3041 | * @bssid: (private) Used by the internal configuration code |
3042 | * @ssid: (private) Used by the internal configuration code |
3043 | * @ssid_len: (private) Used by the internal configuration code |
3044 | * @mesh_id_len: (private) Used by the internal configuration code |
3045 | * @mesh_id_up_len: (private) Used by the internal configuration code |
3046 | * @wext: (private) Used by the internal wireless extensions compat code |
3047 | * @use_4addr: indicates 4addr mode is used on this interface, must be |
3048 | * set by driver (if supported) on add_interface BEFORE registering the |
3049 | * netdev and may otherwise be used by driver read-only, will be update |
3050 | * by cfg80211 on change_interface |
3051 | * @mgmt_registrations: list of registrations for management frames |
3052 | * @mgmt_registrations_lock: lock for the list |
3053 | * @mtx: mutex used to lock data in this struct, may be used by drivers |
3054 | * and some API functions require it held |
3055 | * @beacon_interval: beacon interval used on this device for transmitting |
3056 | * beacons, 0 when not valid |
3057 | * @address: The address for this device, valid only if @netdev is %NULL |
3058 | * @p2p_started: true if this is a P2P Device that has been started |
3059 | * @cac_started: true if DFS channel availability check has been started |
3060 | * @cac_start_time: timestamp (jiffies) when the dfs state was entered. |
3061 | * @ps: powersave mode is enabled |
3062 | * @ps_timeout: dynamic powersave timeout |
3063 | * @ap_unexpected_nlportid: (private) netlink port ID of application |
3064 | * registered for unexpected class 3 frames (AP mode) |
3065 | * @conn: (private) cfg80211 software SME connection state machine data |
3066 | * @connect_keys: (private) keys to set after connection is established |
3067 | * @ibss_fixed: (private) IBSS is using fixed BSSID |
3068 | * @ibss_dfs_possible: (private) IBSS may change to a DFS channel |
3069 | * @event_list: (private) list for internal event processing |
3070 | * @event_lock: (private) lock for event list |
3071 | */ |
3072 | struct wireless_dev { |
3073 | struct wiphy *wiphy; |
3074 | enum nl80211_iftype iftype; |
3075 | |
3076 | /* the remainder of this struct should be private to cfg80211 */ |
3077 | struct list_head list; |
3078 | struct net_device *netdev; |
3079 | |
3080 | u32 identifier; |
3081 | |
3082 | struct list_head mgmt_registrations; |
3083 | spinlock_t mgmt_registrations_lock; |
3084 | |
3085 | struct mutex mtx; |
3086 | |
3087 | bool use_4addr, p2p_started; |
3088 | |
3089 | u8 address[ETH_ALEN] __aligned(sizeof(u16)); |
3090 | |
3091 | /* currently used for IBSS and SME - might be rearranged later */ |
3092 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
3093 | u8 ssid_len, mesh_id_len, mesh_id_up_len; |
3094 | struct cfg80211_conn *conn; |
3095 | struct cfg80211_cached_keys *connect_keys; |
3096 | |
3097 | struct list_head event_list; |
3098 | spinlock_t event_lock; |
3099 | |
3100 | struct cfg80211_internal_bss *current_bss; /* associated / joined */ |
3101 | struct cfg80211_chan_def preset_chandef; |
3102 | |
3103 | /* for AP and mesh channel tracking */ |
3104 | struct ieee80211_channel *channel; |
3105 | |
3106 | bool ibss_fixed; |
3107 | bool ibss_dfs_possible; |
3108 | |
3109 | bool ps; |
3110 | int ps_timeout; |
3111 | |
3112 | int beacon_interval; |
3113 | |
3114 | u32 ap_unexpected_nlportid; |
3115 | |
3116 | bool cac_started; |
3117 | unsigned long cac_start_time; |
3118 | |
3119 | #ifdef CONFIG_CFG80211_WEXT |
3120 | /* wext data */ |
3121 | struct { |
3122 | struct cfg80211_ibss_params ibss; |
3123 | struct cfg80211_connect_params connect; |
3124 | struct cfg80211_cached_keys *keys; |
3125 | u8 *ie; |
3126 | size_t ie_len; |
3127 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
3128 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
3129 | s8 default_key, default_mgmt_key; |
3130 | bool prev_bssid_valid; |
3131 | } wext; |
3132 | #endif |
3133 | }; |
3134 | |
3135 | static inline u8 *wdev_address(struct wireless_dev *wdev) |
3136 | { |
3137 | if (wdev->netdev) |
3138 | return wdev->netdev->dev_addr; |
3139 | return wdev->address; |
3140 | } |
3141 | |
3142 | /** |
3143 | * wdev_priv - return wiphy priv from wireless_dev |
3144 | * |
3145 | * @wdev: The wireless device whose wiphy's priv pointer to return |
3146 | * Return: The wiphy priv of @wdev. |
3147 | */ |
3148 | static inline void *wdev_priv(struct wireless_dev *wdev) |
3149 | { |
3150 | BUG_ON(!wdev); |
3151 | return wiphy_priv(wdev->wiphy); |
3152 | } |
3153 | |
3154 | /** |
3155 | * DOC: Utility functions |
3156 | * |
3157 | * cfg80211 offers a number of utility functions that can be useful. |
3158 | */ |
3159 | |
3160 | /** |
3161 | * ieee80211_channel_to_frequency - convert channel number to frequency |
3162 | * @chan: channel number |
3163 | * @band: band, necessary due to channel number overlap |
3164 | * Return: The corresponding frequency (in MHz), or 0 if the conversion failed. |
3165 | */ |
3166 | int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); |
3167 | |
3168 | /** |
3169 | * ieee80211_frequency_to_channel - convert frequency to channel number |
3170 | * @freq: center frequency |
3171 | * Return: The corresponding channel, or 0 if the conversion failed. |
3172 | */ |
3173 | int ieee80211_frequency_to_channel(int freq); |
3174 | |
3175 | /* |
3176 | * Name indirection necessary because the ieee80211 code also has |
3177 | * a function named "ieee80211_get_channel", so if you include |
3178 | * cfg80211's header file you get cfg80211's version, if you try |
3179 | * to include both header files you'll (rightfully!) get a symbol |
3180 | * clash. |
3181 | */ |
3182 | struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, |
3183 | int freq); |
3184 | /** |
3185 | * ieee80211_get_channel - get channel struct from wiphy for specified frequency |
3186 | * @wiphy: the struct wiphy to get the channel for |
3187 | * @freq: the center frequency of the channel |
3188 | * Return: The channel struct from @wiphy at @freq. |
3189 | */ |
3190 | static inline struct ieee80211_channel * |
3191 | ieee80211_get_channel(struct wiphy *wiphy, int freq) |
3192 | { |
3193 | return __ieee80211_get_channel(wiphy, freq); |
3194 | } |
3195 | |
3196 | /** |
3197 | * ieee80211_get_response_rate - get basic rate for a given rate |
3198 | * |
3199 | * @sband: the band to look for rates in |
3200 | * @basic_rates: bitmap of basic rates |
3201 | * @bitrate: the bitrate for which to find the basic rate |
3202 | * |
3203 | * Return: The basic rate corresponding to a given bitrate, that |
3204 | * is the next lower bitrate contained in the basic rate map, |
3205 | * which is, for this function, given as a bitmap of indices of |
3206 | * rates in the band's bitrate table. |
3207 | */ |
3208 | struct ieee80211_rate * |
3209 | ieee80211_get_response_rate(struct ieee80211_supported_band *sband, |
3210 | u32 basic_rates, int bitrate); |
3211 | |
3212 | /** |
3213 | * ieee80211_mandatory_rates - get mandatory rates for a given band |
3214 | * @sband: the band to look for rates in |
3215 | * @scan_width: width of the control channel |
3216 | * |
3217 | * This function returns a bitmap of the mandatory rates for the given |
3218 | * band, bits are set according to the rate position in the bitrates array. |
3219 | */ |
3220 | u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband, |
3221 | enum nl80211_bss_scan_width scan_width); |
3222 | |
3223 | /* |
3224 | * Radiotap parsing functions -- for controlled injection support |
3225 | * |
3226 | * Implemented in net/wireless/radiotap.c |
3227 | * Documentation in Documentation/networking/radiotap-headers.txt |
3228 | */ |
3229 | |
3230 | struct radiotap_align_size { |
3231 | uint8_t align:4, size:4; |
3232 | }; |
3233 | |
3234 | struct ieee80211_radiotap_namespace { |
3235 | const struct radiotap_align_size *align_size; |
3236 | int n_bits; |
3237 | uint32_t oui; |
3238 | uint8_t subns; |
3239 | }; |
3240 | |
3241 | struct ieee80211_radiotap_vendor_namespaces { |
3242 | const struct ieee80211_radiotap_namespace *ns; |
3243 | int n_ns; |
3244 | }; |
3245 | |
3246 | /** |
3247 | * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args |
3248 | * @this_arg_index: index of current arg, valid after each successful call |
3249 | * to ieee80211_radiotap_iterator_next() |
3250 | * @this_arg: pointer to current radiotap arg; it is valid after each |
3251 | * call to ieee80211_radiotap_iterator_next() but also after |
3252 | * ieee80211_radiotap_iterator_init() where it will point to |
3253 | * the beginning of the actual data portion |
3254 | * @this_arg_size: length of the current arg, for convenience |
3255 | * @current_namespace: pointer to the current namespace definition |
3256 | * (or internally %NULL if the current namespace is unknown) |
3257 | * @is_radiotap_ns: indicates whether the current namespace is the default |
3258 | * radiotap namespace or not |
3259 | * |
3260 | * @_rtheader: pointer to the radiotap header we are walking through |
3261 | * @_max_length: length of radiotap header in cpu byte ordering |
3262 | * @_arg_index: next argument index |
3263 | * @_arg: next argument pointer |
3264 | * @_next_bitmap: internal pointer to next present u32 |
3265 | * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present |
3266 | * @_vns: vendor namespace definitions |
3267 | * @_next_ns_data: beginning of the next namespace's data |
3268 | * @_reset_on_ext: internal; reset the arg index to 0 when going to the |
3269 | * next bitmap word |
3270 | * |
3271 | * Describes the radiotap parser state. Fields prefixed with an underscore |
3272 | * must not be used by users of the parser, only by the parser internally. |
3273 | */ |
3274 | |
3275 | struct ieee80211_radiotap_iterator { |
3276 | struct ieee80211_radiotap_header *_rtheader; |
3277 | const struct ieee80211_radiotap_vendor_namespaces *_vns; |
3278 | const struct ieee80211_radiotap_namespace *current_namespace; |
3279 | |
3280 | unsigned char *_arg, *_next_ns_data; |
3281 | __le32 *_next_bitmap; |
3282 | |
3283 | unsigned char *this_arg; |
3284 | int this_arg_index; |
3285 | int this_arg_size; |
3286 | |
3287 | int is_radiotap_ns; |
3288 | |
3289 | int _max_length; |
3290 | int _arg_index; |
3291 | uint32_t _bitmap_shifter; |
3292 | int _reset_on_ext; |
3293 | }; |
3294 | |
3295 | int |
3296 | ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator, |
3297 | struct ieee80211_radiotap_header *radiotap_header, |
3298 | int max_length, |
3299 | const struct ieee80211_radiotap_vendor_namespaces *vns); |
3300 | |
3301 | int |
3302 | ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator); |
3303 | |
3304 | |
3305 | extern const unsigned char rfc1042_header[6]; |
3306 | extern const unsigned char bridge_tunnel_header[6]; |
3307 | |
3308 | /** |
3309 | * ieee80211_get_hdrlen_from_skb - get header length from data |
3310 | * |
3311 | * @skb: the frame |
3312 | * |
3313 | * Given an skb with a raw 802.11 header at the data pointer this function |
3314 | * returns the 802.11 header length. |
3315 | * |
3316 | * Return: The 802.11 header length in bytes (not including encryption |
3317 | * headers). Or 0 if the data in the sk_buff is too short to contain a valid |
3318 | * 802.11 header. |
3319 | */ |
3320 | unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); |
3321 | |
3322 | /** |
3323 | * ieee80211_hdrlen - get header length in bytes from frame control |
3324 | * @fc: frame control field in little-endian format |
3325 | * Return: The header length in bytes. |
3326 | */ |
3327 | unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); |
3328 | |
3329 | /** |
3330 | * ieee80211_get_mesh_hdrlen - get mesh extension header length |
3331 | * @meshhdr: the mesh extension header, only the flags field |
3332 | * (first byte) will be accessed |
3333 | * Return: The length of the extension header, which is always at |
3334 | * least 6 bytes and at most 18 if address 5 and 6 are present. |
3335 | */ |
3336 | unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); |
3337 | |
3338 | /** |
3339 | * DOC: Data path helpers |
3340 | * |
3341 | * In addition to generic utilities, cfg80211 also offers |
3342 | * functions that help implement the data path for devices |
3343 | * that do not do the 802.11/802.3 conversion on the device. |
3344 | */ |
3345 | |
3346 | /** |
3347 | * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 |
3348 | * @skb: the 802.11 data frame |
3349 | * @addr: the device MAC address |
3350 | * @iftype: the virtual interface type |
3351 | * Return: 0 on success. Non-zero on error. |
3352 | */ |
3353 | int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, |
3354 | enum nl80211_iftype iftype); |
3355 | |
3356 | /** |
3357 | * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 |
3358 | * @skb: the 802.3 frame |
3359 | * @addr: the device MAC address |
3360 | * @iftype: the virtual interface type |
3361 | * @bssid: the network bssid (used only for iftype STATION and ADHOC) |
3362 | * @qos: build 802.11 QoS data frame |
3363 | * Return: 0 on success, or a negative error code. |
3364 | */ |
3365 | int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, |
3366 | enum nl80211_iftype iftype, u8 *bssid, bool qos); |
3367 | |
3368 | /** |
3369 | * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame |
3370 | * |
3371 | * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of |
3372 | * 802.3 frames. The @list will be empty if the decode fails. The |
3373 | * @skb is consumed after the function returns. |
3374 | * |
3375 | * @skb: The input IEEE 802.11n A-MSDU frame. |
3376 | * @list: The output list of 802.3 frames. It must be allocated and |
3377 | * initialized by by the caller. |
3378 | * @addr: The device MAC address. |
3379 | * @iftype: The device interface type. |
3380 | * @extra_headroom: The hardware extra headroom for SKBs in the @list. |
3381 | * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. |
3382 | */ |
3383 | void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, |
3384 | const u8 *addr, enum nl80211_iftype iftype, |
3385 | const unsigned int extra_headroom, |
3386 | bool has_80211_header); |
3387 | |
3388 | /** |
3389 | * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame |
3390 | * @skb: the data frame |
3391 | * Return: The 802.1p/1d tag. |
3392 | */ |
3393 | unsigned int cfg80211_classify8021d(struct sk_buff *skb); |
3394 | |
3395 | /** |
3396 | * cfg80211_find_ie - find information element in data |
3397 | * |
3398 | * @eid: element ID |
3399 | * @ies: data consisting of IEs |
3400 | * @len: length of data |
3401 | * |
3402 | * Return: %NULL if the element ID could not be found or if |
3403 | * the element is invalid (claims to be longer than the given |
3404 | * data), or a pointer to the first byte of the requested |
3405 | * element, that is the byte containing the element ID. |
3406 | * |
3407 | * Note: There are no checks on the element length other than |
3408 | * having to fit into the given data. |
3409 | */ |
3410 | const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); |
3411 | |
3412 | /** |
3413 | * cfg80211_find_vendor_ie - find vendor specific information element in data |
3414 | * |
3415 | * @oui: vendor OUI |
3416 | * @oui_type: vendor-specific OUI type |
3417 | * @ies: data consisting of IEs |
3418 | * @len: length of data |
3419 | * |
3420 | * Return: %NULL if the vendor specific element ID could not be found or if the |
3421 | * element is invalid (claims to be longer than the given data), or a pointer to |
3422 | * the first byte of the requested element, that is the byte containing the |
3423 | * element ID. |
3424 | * |
3425 | * Note: There are no checks on the element length other than having to fit into |
3426 | * the given data. |
3427 | */ |
3428 | const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, |
3429 | const u8 *ies, int len); |
3430 | |
3431 | /** |
3432 | * DOC: Regulatory enforcement infrastructure |
3433 | * |
3434 | * TODO |
3435 | */ |
3436 | |
3437 | /** |
3438 | * regulatory_hint - driver hint to the wireless core a regulatory domain |
3439 | * @wiphy: the wireless device giving the hint (used only for reporting |
3440 | * conflicts) |
3441 | * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain |
3442 | * should be in. If @rd is set this should be NULL. Note that if you |
3443 | * set this to NULL you should still set rd->alpha2 to some accepted |
3444 | * alpha2. |
3445 | * |
3446 | * Wireless drivers can use this function to hint to the wireless core |
3447 | * what it believes should be the current regulatory domain by |
3448 | * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory |
3449 | * domain should be in or by providing a completely build regulatory domain. |
3450 | * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried |
3451 | * for a regulatory domain structure for the respective country. |
3452 | * |
3453 | * The wiphy must have been registered to cfg80211 prior to this call. |
3454 | * For cfg80211 drivers this means you must first use wiphy_register(), |
3455 | * for mac80211 drivers you must first use ieee80211_register_hw(). |
3456 | * |
3457 | * Drivers should check the return value, its possible you can get |
3458 | * an -ENOMEM. |
3459 | * |
3460 | * Return: 0 on success. -ENOMEM. |
3461 | */ |
3462 | int regulatory_hint(struct wiphy *wiphy, const char *alpha2); |
3463 | |
3464 | /** |
3465 | * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain |
3466 | * @wiphy: the wireless device we want to process the regulatory domain on |
3467 | * @regd: the custom regulatory domain to use for this wiphy |
3468 | * |
3469 | * Drivers can sometimes have custom regulatory domains which do not apply |
3470 | * to a specific country. Drivers can use this to apply such custom regulatory |
3471 | * domains. This routine must be called prior to wiphy registration. The |
3472 | * custom regulatory domain will be trusted completely and as such previous |
3473 | * default channel settings will be disregarded. If no rule is found for a |
3474 | * channel on the regulatory domain the channel will be disabled. |
3475 | */ |
3476 | void wiphy_apply_custom_regulatory(struct wiphy *wiphy, |
3477 | const struct ieee80211_regdomain *regd); |
3478 | |
3479 | /** |
3480 | * freq_reg_info - get regulatory information for the given frequency |
3481 | * @wiphy: the wiphy for which we want to process this rule for |
3482 | * @center_freq: Frequency in KHz for which we want regulatory information for |
3483 | * |
3484 | * Use this function to get the regulatory rule for a specific frequency on |
3485 | * a given wireless device. If the device has a specific regulatory domain |
3486 | * it wants to follow we respect that unless a country IE has been received |
3487 | * and processed already. |
3488 | * |
3489 | * Return: A valid pointer, or, when an error occurs, for example if no rule |
3490 | * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to |
3491 | * check and PTR_ERR() to obtain the numeric return value. The numeric return |
3492 | * value will be -ERANGE if we determine the given center_freq does not even |
3493 | * have a regulatory rule for a frequency range in the center_freq's band. |
3494 | * See freq_in_rule_band() for our current definition of a band -- this is |
3495 | * purely subjective and right now it's 802.11 specific. |
3496 | */ |
3497 | const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, |
3498 | u32 center_freq); |
3499 | |
3500 | /** |
3501 | * reg_initiator_name - map regulatory request initiator enum to name |
3502 | * @initiator: the regulatory request initiator |
3503 | * |
3504 | * You can use this to map the regulatory request initiator enum to a |
3505 | * proper string representation. |
3506 | */ |
3507 | const char *reg_initiator_name(enum nl80211_reg_initiator initiator); |
3508 | |
3509 | /* |
3510 | * callbacks for asynchronous cfg80211 methods, notification |
3511 | * functions and BSS handling helpers |
3512 | */ |
3513 | |
3514 | /** |
3515 | * cfg80211_scan_done - notify that scan finished |
3516 | * |
3517 | * @request: the corresponding scan request |
3518 | * @aborted: set to true if the scan was aborted for any reason, |
3519 | * userspace will be notified of that |
3520 | */ |
3521 | void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); |
3522 | |
3523 | /** |
3524 | * cfg80211_sched_scan_results - notify that new scan results are available |
3525 | * |
3526 | * @wiphy: the wiphy which got scheduled scan results |
3527 | */ |
3528 | void cfg80211_sched_scan_results(struct wiphy *wiphy); |
3529 | |
3530 | /** |
3531 | * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped |
3532 | * |
3533 | * @wiphy: the wiphy on which the scheduled scan stopped |
3534 | * |
3535 | * The driver can call this function to inform cfg80211 that the |
3536 | * scheduled scan had to be stopped, for whatever reason. The driver |
3537 | * is then called back via the sched_scan_stop operation when done. |
3538 | */ |
3539 | void cfg80211_sched_scan_stopped(struct wiphy *wiphy); |
3540 | |
3541 | /** |
3542 | * cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame |
3543 | * |
3544 | * @wiphy: the wiphy reporting the BSS |
3545 | * @channel: The channel the frame was received on |
3546 | * @scan_width: width of the control channel |
3547 | * @mgmt: the management frame (probe response or beacon) |
3548 | * @len: length of the management frame |
3549 | * @signal: the signal strength, type depends on the wiphy's signal_type |
3550 | * @gfp: context flags |
3551 | * |
3552 | * This informs cfg80211 that BSS information was found and |
3553 | * the BSS should be updated/added. |
3554 | * |
3555 | * Return: A referenced struct, must be released with cfg80211_put_bss()! |
3556 | * Or %NULL on error. |
3557 | */ |
3558 | struct cfg80211_bss * __must_check |
3559 | cfg80211_inform_bss_width_frame(struct wiphy *wiphy, |
3560 | struct ieee80211_channel *channel, |
3561 | enum nl80211_bss_scan_width scan_width, |
3562 | struct ieee80211_mgmt *mgmt, size_t len, |
3563 | s32 signal, gfp_t gfp); |
3564 | |
3565 | static inline struct cfg80211_bss * __must_check |
3566 | cfg80211_inform_bss_frame(struct wiphy *wiphy, |
3567 | struct ieee80211_channel *channel, |
3568 | struct ieee80211_mgmt *mgmt, size_t len, |
3569 | s32 signal, gfp_t gfp) |
3570 | { |
3571 | return cfg80211_inform_bss_width_frame(wiphy, channel, |
3572 | NL80211_BSS_CHAN_WIDTH_20, |
3573 | mgmt, len, signal, gfp); |
3574 | } |
3575 | |
3576 | /** |
3577 | * cfg80211_inform_bss - inform cfg80211 of a new BSS |
3578 | * |
3579 | * @wiphy: the wiphy reporting the BSS |
3580 | * @channel: The channel the frame was received on |
3581 | * @scan_width: width of the control channel |
3582 | * @bssid: the BSSID of the BSS |
3583 | * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) |
3584 | * @capability: the capability field sent by the peer |
3585 | * @beacon_interval: the beacon interval announced by the peer |
3586 | * @ie: additional IEs sent by the peer |
3587 | * @ielen: length of the additional IEs |
3588 | * @signal: the signal strength, type depends on the wiphy's signal_type |
3589 | * @gfp: context flags |
3590 | * |
3591 | * This informs cfg80211 that BSS information was found and |
3592 | * the BSS should be updated/added. |
3593 | * |
3594 | * Return: A referenced struct, must be released with cfg80211_put_bss()! |
3595 | * Or %NULL on error. |
3596 | */ |
3597 | struct cfg80211_bss * __must_check |
3598 | cfg80211_inform_bss_width(struct wiphy *wiphy, |
3599 | struct ieee80211_channel *channel, |
3600 | enum nl80211_bss_scan_width scan_width, |
3601 | const u8 *bssid, u64 tsf, u16 capability, |
3602 | u16 beacon_interval, const u8 *ie, size_t ielen, |
3603 | s32 signal, gfp_t gfp); |
3604 | |
3605 | static inline struct cfg80211_bss * __must_check |
3606 | cfg80211_inform_bss(struct wiphy *wiphy, |
3607 | struct ieee80211_channel *channel, |
3608 | const u8 *bssid, u64 tsf, u16 capability, |
3609 | u16 beacon_interval, const u8 *ie, size_t ielen, |
3610 | s32 signal, gfp_t gfp) |
3611 | { |
3612 | return cfg80211_inform_bss_width(wiphy, channel, |
3613 | NL80211_BSS_CHAN_WIDTH_20, |
3614 | bssid, tsf, capability, |
3615 | beacon_interval, ie, ielen, signal, |
3616 | gfp); |
3617 | } |
3618 | |
3619 | struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, |
3620 | struct ieee80211_channel *channel, |
3621 | const u8 *bssid, |
3622 | const u8 *ssid, size_t ssid_len, |
3623 | u16 capa_mask, u16 capa_val); |
3624 | static inline struct cfg80211_bss * |
3625 | cfg80211_get_ibss(struct wiphy *wiphy, |
3626 | struct ieee80211_channel *channel, |
3627 | const u8 *ssid, size_t ssid_len) |
3628 | { |
3629 | return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, |
3630 | WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); |
3631 | } |
3632 | |
3633 | /** |
3634 | * cfg80211_ref_bss - reference BSS struct |
3635 | * @wiphy: the wiphy this BSS struct belongs to |
3636 | * @bss: the BSS struct to reference |
3637 | * |
3638 | * Increments the refcount of the given BSS struct. |
3639 | */ |
3640 | void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); |
3641 | |
3642 | /** |
3643 | * cfg80211_put_bss - unref BSS struct |
3644 | * @wiphy: the wiphy this BSS struct belongs to |
3645 | * @bss: the BSS struct |
3646 | * |
3647 | * Decrements the refcount of the given BSS struct. |
3648 | */ |
3649 | void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); |
3650 | |
3651 | /** |
3652 | * cfg80211_unlink_bss - unlink BSS from internal data structures |
3653 | * @wiphy: the wiphy |
3654 | * @bss: the bss to remove |
3655 | * |
3656 | * This function removes the given BSS from the internal data structures |
3657 | * thereby making it no longer show up in scan results etc. Use this |
3658 | * function when you detect a BSS is gone. Normally BSSes will also time |
3659 | * out, so it is not necessary to use this function at all. |
3660 | */ |
3661 | void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); |
3662 | |
3663 | static inline enum nl80211_bss_scan_width |
3664 | cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef) |
3665 | { |
3666 | switch (chandef->width) { |
3667 | case NL80211_CHAN_WIDTH_5: |
3668 | return NL80211_BSS_CHAN_WIDTH_5; |
3669 | case NL80211_CHAN_WIDTH_10: |
3670 | return NL80211_BSS_CHAN_WIDTH_10; |
3671 | default: |
3672 | return NL80211_BSS_CHAN_WIDTH_20; |
3673 | } |
3674 | } |
3675 | |
3676 | /** |
3677 | * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame |
3678 | * @dev: network device |
3679 | * @buf: authentication frame (header + body) |
3680 | * @len: length of the frame data |
3681 | * |
3682 | * This function is called whenever an authentication, disassociation or |
3683 | * deauthentication frame has been received and processed in station mode. |
3684 | * After being asked to authenticate via cfg80211_ops::auth() the driver must |
3685 | * call either this function or cfg80211_auth_timeout(). |
3686 | * After being asked to associate via cfg80211_ops::assoc() the driver must |
3687 | * call either this function or cfg80211_auth_timeout(). |
3688 | * While connected, the driver must calls this for received and processed |
3689 | * disassociation and deauthentication frames. If the frame couldn't be used |
3690 | * because it was unprotected, the driver must call the function |
3691 | * cfg80211_rx_unprot_mlme_mgmt() instead. |
3692 | * |
3693 | * This function may sleep. The caller must hold the corresponding wdev's mutex. |
3694 | */ |
3695 | void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); |
3696 | |
3697 | /** |
3698 | * cfg80211_auth_timeout - notification of timed out authentication |
3699 | * @dev: network device |
3700 | * @addr: The MAC address of the device with which the authentication timed out |
3701 | * |
3702 | * This function may sleep. The caller must hold the corresponding wdev's |
3703 | * mutex. |
3704 | */ |
3705 | void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr); |
3706 | |
3707 | /** |
3708 | * cfg80211_rx_assoc_resp - notification of processed association response |
3709 | * @dev: network device |
3710 | * @bss: the BSS that association was requested with, ownership of the pointer |
3711 | * moves to cfg80211 in this call |
3712 | * @buf: authentication frame (header + body) |
3713 | * @len: length of the frame data |
3714 | * |
3715 | * After being asked to associate via cfg80211_ops::assoc() the driver must |
3716 | * call either this function or cfg80211_auth_timeout(). |
3717 | * |
3718 | * This function may sleep. The caller must hold the corresponding wdev's mutex. |
3719 | */ |
3720 | void cfg80211_rx_assoc_resp(struct net_device *dev, |
3721 | struct cfg80211_bss *bss, |
3722 | const u8 *buf, size_t len); |
3723 | |
3724 | /** |
3725 | * cfg80211_assoc_timeout - notification of timed out association |
3726 | * @dev: network device |
3727 | * @bss: The BSS entry with which association timed out. |
3728 | * |
3729 | * This function may sleep. The caller must hold the corresponding wdev's mutex. |
3730 | */ |
3731 | void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss); |
3732 | |
3733 | /** |
3734 | * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame |
3735 | * @dev: network device |
3736 | * @buf: 802.11 frame (header + body) |
3737 | * @len: length of the frame data |
3738 | * |
3739 | * This function is called whenever deauthentication has been processed in |
3740 | * station mode. This includes both received deauthentication frames and |
3741 | * locally generated ones. This function may sleep. The caller must hold the |
3742 | * corresponding wdev's mutex. |
3743 | */ |
3744 | void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); |
3745 | |
3746 | /** |
3747 | * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame |
3748 | * @dev: network device |
3749 | * @buf: deauthentication frame (header + body) |
3750 | * @len: length of the frame data |
3751 | * |
3752 | * This function is called whenever a received deauthentication or dissassoc |
3753 | * frame has been dropped in station mode because of MFP being used but the |
3754 | * frame was not protected. This function may sleep. |
3755 | */ |
3756 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, |
3757 | const u8 *buf, size_t len); |
3758 | |
3759 | /** |
3760 | * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) |
3761 | * @dev: network device |
3762 | * @addr: The source MAC address of the frame |
3763 | * @key_type: The key type that the received frame used |
3764 | * @key_id: Key identifier (0..3). Can be -1 if missing. |
3765 | * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) |
3766 | * @gfp: allocation flags |
3767 | * |
3768 | * This function is called whenever the local MAC detects a MIC failure in a |
3769 | * received frame. This matches with MLME-MICHAELMICFAILURE.indication() |
3770 | * primitive. |
3771 | */ |
3772 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
3773 | enum nl80211_key_type key_type, int key_id, |
3774 | const u8 *tsc, gfp_t gfp); |
3775 | |
3776 | /** |
3777 | * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS |
3778 | * |
3779 | * @dev: network device |
3780 | * @bssid: the BSSID of the IBSS joined |
3781 | * @gfp: allocation flags |
3782 | * |
3783 | * This function notifies cfg80211 that the device joined an IBSS or |
3784 | * switched to a different BSSID. Before this function can be called, |
3785 | * either a beacon has to have been received from the IBSS, or one of |
3786 | * the cfg80211_inform_bss{,_frame} functions must have been called |
3787 | * with the locally generated beacon -- this guarantees that there is |
3788 | * always a scan result for this IBSS. cfg80211 will handle the rest. |
3789 | */ |
3790 | void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); |
3791 | |
3792 | /** |
3793 | * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate |
3794 | * |
3795 | * @dev: network device |
3796 | * @macaddr: the MAC address of the new candidate |
3797 | * @ie: information elements advertised by the peer candidate |
3798 | * @ie_len: lenght of the information elements buffer |
3799 | * @gfp: allocation flags |
3800 | * |
3801 | * This function notifies cfg80211 that the mesh peer candidate has been |
3802 | * detected, most likely via a beacon or, less likely, via a probe response. |
3803 | * cfg80211 then sends a notification to userspace. |
3804 | */ |
3805 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, |
3806 | const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); |
3807 | |
3808 | /** |
3809 | * DOC: RFkill integration |
3810 | * |
3811 | * RFkill integration in cfg80211 is almost invisible to drivers, |
3812 | * as cfg80211 automatically registers an rfkill instance for each |
3813 | * wireless device it knows about. Soft kill is also translated |
3814 | * into disconnecting and turning all interfaces off, drivers are |
3815 | * expected to turn off the device when all interfaces are down. |
3816 | * |
3817 | * However, devices may have a hard RFkill line, in which case they |
3818 | * also need to interact with the rfkill subsystem, via cfg80211. |
3819 | * They can do this with a few helper functions documented here. |
3820 | */ |
3821 | |
3822 | /** |
3823 | * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state |
3824 | * @wiphy: the wiphy |
3825 | * @blocked: block status |
3826 | */ |
3827 | void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); |
3828 | |
3829 | /** |
3830 | * wiphy_rfkill_start_polling - start polling rfkill |
3831 | * @wiphy: the wiphy |
3832 | */ |
3833 | void wiphy_rfkill_start_polling(struct wiphy *wiphy); |
3834 | |
3835 | /** |
3836 | * wiphy_rfkill_stop_polling - stop polling rfkill |
3837 | * @wiphy: the wiphy |
3838 | */ |
3839 | void wiphy_rfkill_stop_polling(struct wiphy *wiphy); |
3840 | |
3841 | #ifdef CONFIG_NL80211_TESTMODE |
3842 | /** |
3843 | * DOC: Test mode |
3844 | * |
3845 | * Test mode is a set of utility functions to allow drivers to |
3846 | * interact with driver-specific tools to aid, for instance, |
3847 | * factory programming. |
3848 | * |
3849 | * This chapter describes how drivers interact with it, for more |
3850 | * information see the nl80211 book's chapter on it. |
3851 | */ |
3852 | |
3853 | /** |
3854 | * cfg80211_testmode_alloc_reply_skb - allocate testmode reply |
3855 | * @wiphy: the wiphy |
3856 | * @approxlen: an upper bound of the length of the data that will |
3857 | * be put into the skb |
3858 | * |
3859 | * This function allocates and pre-fills an skb for a reply to |
3860 | * the testmode command. Since it is intended for a reply, calling |
3861 | * it outside of the @testmode_cmd operation is invalid. |
3862 | * |
3863 | * The returned skb is pre-filled with the wiphy index and set up in |
3864 | * a way that any data that is put into the skb (with skb_put(), |
3865 | * nla_put() or similar) will end up being within the |
3866 | * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done |
3867 | * with the skb is adding data for the corresponding userspace tool |
3868 | * which can then read that data out of the testdata attribute. You |
3869 | * must not modify the skb in any other way. |
3870 | * |
3871 | * When done, call cfg80211_testmode_reply() with the skb and return |
3872 | * its error code as the result of the @testmode_cmd operation. |
3873 | * |
3874 | * Return: An allocated and pre-filled skb. %NULL if any errors happen. |
3875 | */ |
3876 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, |
3877 | int approxlen); |
3878 | |
3879 | /** |
3880 | * cfg80211_testmode_reply - send the reply skb |
3881 | * @skb: The skb, must have been allocated with |
3882 | * cfg80211_testmode_alloc_reply_skb() |
3883 | * |
3884 | * Since calling this function will usually be the last thing |
3885 | * before returning from the @testmode_cmd you should return |
3886 | * the error code. Note that this function consumes the skb |
3887 | * regardless of the return value. |
3888 | * |
3889 | * Return: An error code or 0 on success. |
3890 | */ |
3891 | int cfg80211_testmode_reply(struct sk_buff *skb); |
3892 | |
3893 | /** |
3894 | * cfg80211_testmode_alloc_event_skb - allocate testmode event |
3895 | * @wiphy: the wiphy |
3896 | * @approxlen: an upper bound of the length of the data that will |
3897 | * be put into the skb |
3898 | * @gfp: allocation flags |
3899 | * |
3900 | * This function allocates and pre-fills an skb for an event on the |
3901 | * testmode multicast group. |
3902 | * |
3903 | * The returned skb is set up in the same way as with |
3904 | * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As |
3905 | * there, you should simply add data to it that will then end up in the |
3906 | * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb |
3907 | * in any other way. |
3908 | * |
3909 | * When done filling the skb, call cfg80211_testmode_event() with the |
3910 | * skb to send the event. |
3911 | * |
3912 | * Return: An allocated and pre-filled skb. %NULL if any errors happen. |
3913 | */ |
3914 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, |
3915 | int approxlen, gfp_t gfp); |
3916 | |
3917 | /** |
3918 | * cfg80211_testmode_event - send the event |
3919 | * @skb: The skb, must have been allocated with |
3920 | * cfg80211_testmode_alloc_event_skb() |
3921 | * @gfp: allocation flags |
3922 | * |
3923 | * This function sends the given @skb, which must have been allocated |
3924 | * by cfg80211_testmode_alloc_event_skb(), as an event. It always |
3925 | * consumes it. |
3926 | */ |
3927 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); |
3928 | |
3929 | #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), |
3930 | #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), |
3931 | #else |
3932 | #define CFG80211_TESTMODE_CMD(cmd) |
3933 | #define CFG80211_TESTMODE_DUMP(cmd) |
3934 | #endif |
3935 | |
3936 | /** |
3937 | * cfg80211_connect_result - notify cfg80211 of connection result |
3938 | * |
3939 | * @dev: network device |
3940 | * @bssid: the BSSID of the AP |
3941 | * @req_ie: association request IEs (maybe be %NULL) |
3942 | * @req_ie_len: association request IEs length |
3943 | * @resp_ie: association response IEs (may be %NULL) |
3944 | * @resp_ie_len: assoc response IEs length |
3945 | * @status: status code, 0 for successful connection, use |
3946 | * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you |
3947 | * the real status code for failures. |
3948 | * @gfp: allocation flags |
3949 | * |
3950 | * It should be called by the underlying driver whenever connect() has |
3951 | * succeeded. |
3952 | */ |
3953 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
3954 | const u8 *req_ie, size_t req_ie_len, |
3955 | const u8 *resp_ie, size_t resp_ie_len, |
3956 | u16 status, gfp_t gfp); |
3957 | |
3958 | /** |
3959 | * cfg80211_roamed - notify cfg80211 of roaming |
3960 | * |
3961 | * @dev: network device |
3962 | * @channel: the channel of the new AP |
3963 | * @bssid: the BSSID of the new AP |
3964 | * @req_ie: association request IEs (maybe be %NULL) |
3965 | * @req_ie_len: association request IEs length |
3966 | * @resp_ie: association response IEs (may be %NULL) |
3967 | * @resp_ie_len: assoc response IEs length |
3968 | * @gfp: allocation flags |
3969 | * |
3970 | * It should be called by the underlying driver whenever it roamed |
3971 | * from one AP to another while connected. |
3972 | */ |
3973 | void cfg80211_roamed(struct net_device *dev, |
3974 | struct ieee80211_channel *channel, |
3975 | const u8 *bssid, |
3976 | const u8 *req_ie, size_t req_ie_len, |
3977 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); |
3978 | |
3979 | /** |
3980 | * cfg80211_roamed_bss - notify cfg80211 of roaming |
3981 | * |
3982 | * @dev: network device |
3983 | * @bss: entry of bss to which STA got roamed |
3984 | * @req_ie: association request IEs (maybe be %NULL) |
3985 | * @req_ie_len: association request IEs length |
3986 | * @resp_ie: association response IEs (may be %NULL) |
3987 | * @resp_ie_len: assoc response IEs length |
3988 | * @gfp: allocation flags |
3989 | * |
3990 | * This is just a wrapper to notify cfg80211 of roaming event with driver |
3991 | * passing bss to avoid a race in timeout of the bss entry. It should be |
3992 | * called by the underlying driver whenever it roamed from one AP to another |
3993 | * while connected. Drivers which have roaming implemented in firmware |
3994 | * may use this function to avoid a race in bss entry timeout where the bss |
3995 | * entry of the new AP is seen in the driver, but gets timed out by the time |
3996 | * it is accessed in __cfg80211_roamed() due to delay in scheduling |
3997 | * rdev->event_work. In case of any failures, the reference is released |
3998 | * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise, |
3999 | * it will be released while diconneting from the current bss. |
4000 | */ |
4001 | void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss, |
4002 | const u8 *req_ie, size_t req_ie_len, |
4003 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); |
4004 | |
4005 | /** |
4006 | * cfg80211_disconnected - notify cfg80211 that connection was dropped |
4007 | * |
4008 | * @dev: network device |
4009 | * @ie: information elements of the deauth/disassoc frame (may be %NULL) |
4010 | * @ie_len: length of IEs |
4011 | * @reason: reason code for the disconnection, set it to 0 if unknown |
4012 | * @gfp: allocation flags |
4013 | * |
4014 | * After it calls this function, the driver should enter an idle state |
4015 | * and not try to connect to any AP any more. |
4016 | */ |
4017 | void cfg80211_disconnected(struct net_device *dev, u16 reason, |
4018 | u8 *ie, size_t ie_len, gfp_t gfp); |
4019 | |
4020 | /** |
4021 | * cfg80211_ready_on_channel - notification of remain_on_channel start |
4022 | * @wdev: wireless device |
4023 | * @cookie: the request cookie |
4024 | * @chan: The current channel (from remain_on_channel request) |
4025 | * @duration: Duration in milliseconds that the driver intents to remain on the |
4026 | * channel |
4027 | * @gfp: allocation flags |
4028 | */ |
4029 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
4030 | struct ieee80211_channel *chan, |
4031 | unsigned int duration, gfp_t gfp); |
4032 | |
4033 | /** |
4034 | * cfg80211_remain_on_channel_expired - remain_on_channel duration expired |
4035 | * @wdev: wireless device |
4036 | * @cookie: the request cookie |
4037 | * @chan: The current channel (from remain_on_channel request) |
4038 | * @gfp: allocation flags |
4039 | */ |
4040 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
4041 | struct ieee80211_channel *chan, |
4042 | gfp_t gfp); |
4043 | |
4044 | |
4045 | /** |
4046 | * cfg80211_new_sta - notify userspace about station |
4047 | * |
4048 | * @dev: the netdev |
4049 | * @mac_addr: the station's address |
4050 | * @sinfo: the station information |
4051 | * @gfp: allocation flags |
4052 | */ |
4053 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
4054 | struct station_info *sinfo, gfp_t gfp); |
4055 | |
4056 | /** |
4057 | * cfg80211_del_sta - notify userspace about deletion of a station |
4058 | * |
4059 | * @dev: the netdev |
4060 | * @mac_addr: the station's address |
4061 | * @gfp: allocation flags |
4062 | */ |
4063 | void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); |
4064 | |
4065 | /** |
4066 | * cfg80211_conn_failed - connection request failed notification |
4067 | * |
4068 | * @dev: the netdev |
4069 | * @mac_addr: the station's address |
4070 | * @reason: the reason for connection failure |
4071 | * @gfp: allocation flags |
4072 | * |
4073 | * Whenever a station tries to connect to an AP and if the station |
4074 | * could not connect to the AP as the AP has rejected the connection |
4075 | * for some reasons, this function is called. |
4076 | * |
4077 | * The reason for connection failure can be any of the value from |
4078 | * nl80211_connect_failed_reason enum |
4079 | */ |
4080 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
4081 | enum nl80211_connect_failed_reason reason, |
4082 | gfp_t gfp); |
4083 | |
4084 | /** |
4085 | * cfg80211_rx_mgmt - notification of received, unprocessed management frame |
4086 | * @wdev: wireless device receiving the frame |
4087 | * @freq: Frequency on which the frame was received in MHz |
4088 | * @sig_dbm: signal strength in mBm, or 0 if unknown |
4089 | * @buf: Management frame (header + body) |
4090 | * @len: length of the frame data |
4091 | * @flags: flags, as defined in enum nl80211_rxmgmt_flags |
4092 | * @gfp: context flags |
4093 | * |
4094 | * This function is called whenever an Action frame is received for a station |
4095 | * mode interface, but is not processed in kernel. |
4096 | * |
4097 | * Return: %true if a user space application has registered for this frame. |
4098 | * For action frames, that makes it responsible for rejecting unrecognized |
4099 | * action frames; %false otherwise, in which case for action frames the |
4100 | * driver is responsible for rejecting the frame. |
4101 | */ |
4102 | bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, |
4103 | const u8 *buf, size_t len, u32 flags, gfp_t gfp); |
4104 | |
4105 | /** |
4106 | * cfg80211_mgmt_tx_status - notification of TX status for management frame |
4107 | * @wdev: wireless device receiving the frame |
4108 | * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() |
4109 | * @buf: Management frame (header + body) |
4110 | * @len: length of the frame data |
4111 | * @ack: Whether frame was acknowledged |
4112 | * @gfp: context flags |
4113 | * |
4114 | * This function is called whenever a management frame was requested to be |
4115 | * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the |
4116 | * transmission attempt. |
4117 | */ |
4118 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, |
4119 | const u8 *buf, size_t len, bool ack, gfp_t gfp); |
4120 | |
4121 | |
4122 | /** |
4123 | * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event |
4124 | * @dev: network device |
4125 | * @rssi_event: the triggered RSSI event |
4126 | * @gfp: context flags |
4127 | * |
4128 | * This function is called when a configured connection quality monitoring |
4129 | * rssi threshold reached event occurs. |
4130 | */ |
4131 | void cfg80211_cqm_rssi_notify(struct net_device *dev, |
4132 | enum nl80211_cqm_rssi_threshold_event rssi_event, |
4133 | gfp_t gfp); |
4134 | |
4135 | /** |
4136 | * cfg80211_radar_event - radar detection event |
4137 | * @wiphy: the wiphy |
4138 | * @chandef: chandef for the current channel |
4139 | * @gfp: context flags |
4140 | * |
4141 | * This function is called when a radar is detected on the current chanenl. |
4142 | */ |
4143 | void cfg80211_radar_event(struct wiphy *wiphy, |
4144 | struct cfg80211_chan_def *chandef, gfp_t gfp); |
4145 | |
4146 | /** |
4147 | * cfg80211_cac_event - Channel availability check (CAC) event |
4148 | * @netdev: network device |
4149 | * @event: type of event |
4150 | * @gfp: context flags |
4151 | * |
4152 | * This function is called when a Channel availability check (CAC) is finished |
4153 | * or aborted. This must be called to notify the completion of a CAC process, |
4154 | * also by full-MAC drivers. |
4155 | */ |
4156 | void cfg80211_cac_event(struct net_device *netdev, |
4157 | enum nl80211_radar_event event, gfp_t gfp); |
4158 | |
4159 | |
4160 | /** |
4161 | * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer |
4162 | * @dev: network device |
4163 | * @peer: peer's MAC address |
4164 | * @num_packets: how many packets were lost -- should be a fixed threshold |
4165 | * but probably no less than maybe 50, or maybe a throughput dependent |
4166 | * threshold (to account for temporary interference) |
4167 | * @gfp: context flags |
4168 | */ |
4169 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, |
4170 | const u8 *peer, u32 num_packets, gfp_t gfp); |
4171 | |
4172 | /** |
4173 | * cfg80211_cqm_txe_notify - TX error rate event |
4174 | * @dev: network device |
4175 | * @peer: peer's MAC address |
4176 | * @num_packets: how many packets were lost |
4177 | * @rate: % of packets which failed transmission |
4178 | * @intvl: interval (in s) over which the TX failure threshold was breached. |
4179 | * @gfp: context flags |
4180 | * |
4181 | * Notify userspace when configured % TX failures over number of packets in a |
4182 | * given interval is exceeded. |
4183 | */ |
4184 | void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, |
4185 | u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); |
4186 | |
4187 | /** |
4188 | * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying |
4189 | * @dev: network device |
4190 | * @bssid: BSSID of AP (to avoid races) |
4191 | * @replay_ctr: new replay counter |
4192 | * @gfp: allocation flags |
4193 | */ |
4194 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
4195 | const u8 *replay_ctr, gfp_t gfp); |
4196 | |
4197 | /** |
4198 | * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate |
4199 | * @dev: network device |
4200 | * @index: candidate index (the smaller the index, the higher the priority) |
4201 | * @bssid: BSSID of AP |
4202 | * @preauth: Whether AP advertises support for RSN pre-authentication |
4203 | * @gfp: allocation flags |
4204 | */ |
4205 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
4206 | const u8 *bssid, bool preauth, gfp_t gfp); |
4207 | |
4208 | /** |
4209 | * cfg80211_rx_spurious_frame - inform userspace about a spurious frame |
4210 | * @dev: The device the frame matched to |
4211 | * @addr: the transmitter address |
4212 | * @gfp: context flags |
4213 | * |
4214 | * This function is used in AP mode (only!) to inform userspace that |
4215 | * a spurious class 3 frame was received, to be able to deauth the |
4216 | * sender. |
4217 | * Return: %true if the frame was passed to userspace (or this failed |
4218 | * for a reason other than not having a subscription.) |
4219 | */ |
4220 | bool cfg80211_rx_spurious_frame(struct net_device *dev, |
4221 | const u8 *addr, gfp_t gfp); |
4222 | |
4223 | /** |
4224 | * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame |
4225 | * @dev: The device the frame matched to |
4226 | * @addr: the transmitter address |
4227 | * @gfp: context flags |
4228 | * |
4229 | * This function is used in AP mode (only!) to inform userspace that |
4230 | * an associated station sent a 4addr frame but that wasn't expected. |
4231 | * It is allowed and desirable to send this event only once for each |
4232 | * station to avoid event flooding. |
4233 | * Return: %true if the frame was passed to userspace (or this failed |
4234 | * for a reason other than not having a subscription.) |
4235 | */ |
4236 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
4237 | const u8 *addr, gfp_t gfp); |
4238 | |
4239 | /** |
4240 | * cfg80211_probe_status - notify userspace about probe status |
4241 | * @dev: the device the probe was sent on |
4242 | * @addr: the address of the peer |
4243 | * @cookie: the cookie filled in @probe_client previously |
4244 | * @acked: indicates whether probe was acked or not |
4245 | * @gfp: allocation flags |
4246 | */ |
4247 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
4248 | u64 cookie, bool acked, gfp_t gfp); |
4249 | |
4250 | /** |
4251 | * cfg80211_report_obss_beacon - report beacon from other APs |
4252 | * @wiphy: The wiphy that received the beacon |
4253 | * @frame: the frame |
4254 | * @len: length of the frame |
4255 | * @freq: frequency the frame was received on |
4256 | * @sig_dbm: signal strength in mBm, or 0 if unknown |
4257 | * |
4258 | * Use this function to report to userspace when a beacon was |
4259 | * received. It is not useful to call this when there is no |
4260 | * netdev that is in AP/GO mode. |
4261 | */ |
4262 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
4263 | const u8 *frame, size_t len, |
4264 | int freq, int sig_dbm); |
4265 | |
4266 | /** |
4267 | * cfg80211_reg_can_beacon - check if beaconing is allowed |
4268 | * @wiphy: the wiphy |
4269 | * @chandef: the channel definition |
4270 | * |
4271 | * Return: %true if there is no secondary channel or the secondary channel(s) |
4272 | * can be used for beaconing (i.e. is not a radar channel etc.) |
4273 | */ |
4274 | bool cfg80211_reg_can_beacon(struct wiphy *wiphy, |
4275 | struct cfg80211_chan_def *chandef); |
4276 | |
4277 | /* |
4278 | * cfg80211_ch_switch_notify - update wdev channel and notify userspace |
4279 | * @dev: the device which switched channels |
4280 | * @chandef: the new channel definition |
4281 | * |
4282 | * Acquires wdev_lock, so must only be called from sleepable driver context! |
4283 | */ |
4284 | void cfg80211_ch_switch_notify(struct net_device *dev, |
4285 | struct cfg80211_chan_def *chandef); |
4286 | |
4287 | /** |
4288 | * ieee80211_operating_class_to_band - convert operating class to band |
4289 | * |
4290 | * @operating_class: the operating class to convert |
4291 | * @band: band pointer to fill |
4292 | * |
4293 | * Returns %true if the conversion was successful, %false otherwise. |
4294 | */ |
4295 | bool ieee80211_operating_class_to_band(u8 operating_class, |
4296 | enum ieee80211_band *band); |
4297 | |
4298 | /* |
4299 | * cfg80211_tdls_oper_request - request userspace to perform TDLS operation |
4300 | * @dev: the device on which the operation is requested |
4301 | * @peer: the MAC address of the peer device |
4302 | * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or |
4303 | * NL80211_TDLS_TEARDOWN) |
4304 | * @reason_code: the reason code for teardown request |
4305 | * @gfp: allocation flags |
4306 | * |
4307 | * This function is used to request userspace to perform TDLS operation that |
4308 | * requires knowledge of keys, i.e., link setup or teardown when the AP |
4309 | * connection uses encryption. This is optional mechanism for the driver to use |
4310 | * if it can automatically determine when a TDLS link could be useful (e.g., |
4311 | * based on traffic and signal strength for a peer). |
4312 | */ |
4313 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
4314 | enum nl80211_tdls_operation oper, |
4315 | u16 reason_code, gfp_t gfp); |
4316 | |
4317 | /* |
4318 | * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) |
4319 | * @rate: given rate_info to calculate bitrate from |
4320 | * |
4321 | * return 0 if MCS index >= 32 |
4322 | */ |
4323 | u32 cfg80211_calculate_bitrate(struct rate_info *rate); |
4324 | |
4325 | /** |
4326 | * cfg80211_unregister_wdev - remove the given wdev |
4327 | * @wdev: struct wireless_dev to remove |
4328 | * |
4329 | * Call this function only for wdevs that have no netdev assigned, |
4330 | * e.g. P2P Devices. It removes the device from the list so that |
4331 | * it can no longer be used. It is necessary to call this function |
4332 | * even when cfg80211 requests the removal of the interface by |
4333 | * calling the del_virtual_intf() callback. The function must also |
4334 | * be called when the driver wishes to unregister the wdev, e.g. |
4335 | * when the device is unbound from the driver. |
4336 | * |
4337 | * Requires the RTNL to be held. |
4338 | */ |
4339 | void cfg80211_unregister_wdev(struct wireless_dev *wdev); |
4340 | |
4341 | /** |
4342 | * struct cfg80211_ft_event - FT Information Elements |
4343 | * @ies: FT IEs |
4344 | * @ies_len: length of the FT IE in bytes |
4345 | * @target_ap: target AP's MAC address |
4346 | * @ric_ies: RIC IE |
4347 | * @ric_ies_len: length of the RIC IE in bytes |
4348 | */ |
4349 | struct cfg80211_ft_event_params { |
4350 | const u8 *ies; |
4351 | size_t ies_len; |
4352 | const u8 *target_ap; |
4353 | const u8 *ric_ies; |
4354 | size_t ric_ies_len; |
4355 | }; |
4356 | |
4357 | /** |
4358 | * cfg80211_ft_event - notify userspace about FT IE and RIC IE |
4359 | * @netdev: network device |
4360 | * @ft_event: IE information |
4361 | */ |
4362 | void cfg80211_ft_event(struct net_device *netdev, |
4363 | struct cfg80211_ft_event_params *ft_event); |
4364 | |
4365 | /** |
4366 | * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer |
4367 | * @ies: the input IE buffer |
4368 | * @len: the input length |
4369 | * @attr: the attribute ID to find |
4370 | * @buf: output buffer, can be %NULL if the data isn't needed, e.g. |
4371 | * if the function is only called to get the needed buffer size |
4372 | * @bufsize: size of the output buffer |
4373 | * |
4374 | * The function finds a given P2P attribute in the (vendor) IEs and |
4375 | * copies its contents to the given buffer. |
4376 | * |
4377 | * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is |
4378 | * malformed or the attribute can't be found (respectively), or the |
4379 | * length of the found attribute (which can be zero). |
4380 | */ |
4381 | int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, |
4382 | enum ieee80211_p2p_attr_id attr, |
4383 | u8 *buf, unsigned int bufsize); |
4384 | |
4385 | /** |
4386 | * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN |
4387 | * @wdev: the wireless device reporting the wakeup |
4388 | * @wakeup: the wakeup report |
4389 | * @gfp: allocation flags |
4390 | * |
4391 | * This function reports that the given device woke up. If it |
4392 | * caused the wakeup, report the reason(s), otherwise you may |
4393 | * pass %NULL as the @wakeup parameter to advertise that something |
4394 | * else caused the wakeup. |
4395 | */ |
4396 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, |
4397 | struct cfg80211_wowlan_wakeup *wakeup, |
4398 | gfp_t gfp); |
4399 | |
4400 | /** |
4401 | * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver. |
4402 | * |
4403 | * @wdev: the wireless device for which critical protocol is stopped. |
4404 | * @gfp: allocation flags |
4405 | * |
4406 | * This function can be called by the driver to indicate it has reverted |
4407 | * operation back to normal. One reason could be that the duration given |
4408 | * by .crit_proto_start() has expired. |
4409 | */ |
4410 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp); |
4411 | |
4412 | /* Logging, debugging and troubleshooting/diagnostic helpers. */ |
4413 | |
4414 | /* wiphy_printk helpers, similar to dev_printk */ |
4415 | |
4416 | #define wiphy_printk(level, wiphy, format, args...) \ |
4417 | dev_printk(level, &(wiphy)->dev, format, ##args) |
4418 | #define wiphy_emerg(wiphy, format, args...) \ |
4419 | dev_emerg(&(wiphy)->dev, format, ##args) |
4420 | #define wiphy_alert(wiphy, format, args...) \ |
4421 | dev_alert(&(wiphy)->dev, format, ##args) |
4422 | #define wiphy_crit(wiphy, format, args...) \ |
4423 | dev_crit(&(wiphy)->dev, format, ##args) |
4424 | #define wiphy_err(wiphy, format, args...) \ |
4425 | dev_err(&(wiphy)->dev, format, ##args) |
4426 | #define wiphy_warn(wiphy, format, args...) \ |
4427 | dev_warn(&(wiphy)->dev, format, ##args) |
4428 | #define wiphy_notice(wiphy, format, args...) \ |
4429 | dev_notice(&(wiphy)->dev, format, ##args) |
4430 | #define wiphy_info(wiphy, format, args...) \ |
4431 | dev_info(&(wiphy)->dev, format, ##args) |
4432 | |
4433 | #define wiphy_debug(wiphy, format, args...) \ |
4434 | wiphy_printk(KERN_DEBUG, wiphy, format, ##args) |
4435 | |
4436 | #define wiphy_dbg(wiphy, format, args...) \ |
4437 | dev_dbg(&(wiphy)->dev, format, ##args) |
4438 | |
4439 | #if defined(VERBOSE_DEBUG) |
4440 | #define wiphy_vdbg wiphy_dbg |
4441 | #else |
4442 | #define wiphy_vdbg(wiphy, format, args...) \ |
4443 | ({ \ |
4444 | if (0) \ |
4445 | wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ |
4446 | 0; \ |
4447 | }) |
4448 | #endif |
4449 | |
4450 | /* |
4451 | * wiphy_WARN() acts like wiphy_printk(), but with the key difference |
4452 | * of using a WARN/WARN_ON to get the message out, including the |
4453 | * file/line information and a backtrace. |
4454 | */ |
4455 | #define wiphy_WARN(wiphy, format, args...) \ |
4456 | WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); |
4457 | |
4458 | #endif /* __NET_CFG80211_H */ |
4459 |
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