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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 <net/regulatory.h>
23
24 /**
25 * DOC: Introduction
26 *
27 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
28 * userspace and drivers, and offers some utility functionality associated
29 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
30 * by all modern wireless drivers in Linux, so that they offer a consistent
31 * API through nl80211. For backward compatibility, cfg80211 also offers
32 * wireless extensions to userspace, but hides them from drivers completely.
33 *
34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
35 * use restrictions.
36 */
37
38
39 /**
40 * DOC: Device registration
41 *
42 * In order for a driver to use cfg80211, it must register the hardware device
43 * with cfg80211. This happens through a number of hardware capability structs
44 * described below.
45 *
46 * The fundamental structure for each device is the 'wiphy', of which each
47 * instance describes a physical wireless device connected to the system. Each
48 * such wiphy can have zero, one, or many virtual interfaces associated with
49 * it, which need to be identified as such by pointing the network interface's
50 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
51 * the wireless part of the interface, normally this struct is embedded in the
52 * network interface's private data area. Drivers can optionally allow creating
53 * or destroying virtual interfaces on the fly, but without at least one or the
54 * ability to create some the wireless device isn't useful.
55 *
56 * Each wiphy structure contains device capability information, and also has
57 * a pointer to the various operations the driver offers. The definitions and
58 * structures here describe these capabilities in detail.
59 */
60
61 /*
62 * wireless hardware capability structures
63 */
64
65 /**
66 * enum ieee80211_band - supported frequency bands
67 *
68 * The bands are assigned this way because the supported
69 * bitrates differ in these bands.
70 *
71 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
72 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
73 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
74 * @IEEE80211_NUM_BANDS: number of defined bands
75 */
76 enum ieee80211_band {
77 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
78 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
79 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
80
81 /* keep last */
82 IEEE80211_NUM_BANDS
83 };
84
85 /**
86 * enum ieee80211_channel_flags - channel flags
87 *
88 * Channel flags set by the regulatory control code.
89 *
90 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
91 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
92 * on this channel.
93 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
94 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
95 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
96 * is not permitted.
97 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
98 * is not permitted.
99 */
100 enum ieee80211_channel_flags {
101 IEEE80211_CHAN_DISABLED = 1<<0,
102 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
103 IEEE80211_CHAN_NO_IBSS = 1<<2,
104 IEEE80211_CHAN_RADAR = 1<<3,
105 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
106 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
107 };
108
109 #define IEEE80211_CHAN_NO_HT40 \
110 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
111
112 /**
113 * struct ieee80211_channel - channel definition
114 *
115 * This structure describes a single channel for use
116 * with cfg80211.
117 *
118 * @center_freq: center frequency in MHz
119 * @hw_value: hardware-specific value for the channel
120 * @flags: channel flags from &enum ieee80211_channel_flags.
121 * @orig_flags: channel flags at registration time, used by regulatory
122 * code to support devices with additional restrictions
123 * @band: band this channel belongs to.
124 * @max_antenna_gain: maximum antenna gain in dBi
125 * @max_power: maximum transmission power (in dBm)
126 * @max_reg_power: maximum regulatory transmission power (in dBm)
127 * @beacon_found: helper to regulatory code to indicate when a beacon
128 * has been found on this channel. Use regulatory_hint_found_beacon()
129 * to enable this, this is useful only on 5 GHz band.
130 * @orig_mag: internal use
131 * @orig_mpwr: internal use
132 */
133 struct ieee80211_channel {
134 enum ieee80211_band band;
135 u16 center_freq;
136 u16 hw_value;
137 u32 flags;
138 int max_antenna_gain;
139 int max_power;
140 int max_reg_power;
141 bool beacon_found;
142 u32 orig_flags;
143 int orig_mag, orig_mpwr;
144 };
145
146 /**
147 * enum ieee80211_rate_flags - rate flags
148 *
149 * Hardware/specification flags for rates. These are structured
150 * in a way that allows using the same bitrate structure for
151 * different bands/PHY modes.
152 *
153 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
154 * preamble on this bitrate; only relevant in 2.4GHz band and
155 * with CCK rates.
156 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
157 * when used with 802.11a (on the 5 GHz band); filled by the
158 * core code when registering the wiphy.
159 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
160 * when used with 802.11b (on the 2.4 GHz band); filled by the
161 * core code when registering the wiphy.
162 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
163 * when used with 802.11g (on the 2.4 GHz band); filled by the
164 * core code when registering the wiphy.
165 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
166 */
167 enum ieee80211_rate_flags {
168 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
169 IEEE80211_RATE_MANDATORY_A = 1<<1,
170 IEEE80211_RATE_MANDATORY_B = 1<<2,
171 IEEE80211_RATE_MANDATORY_G = 1<<3,
172 IEEE80211_RATE_ERP_G = 1<<4,
173 };
174
175 /**
176 * struct ieee80211_rate - bitrate definition
177 *
178 * This structure describes a bitrate that an 802.11 PHY can
179 * operate with. The two values @hw_value and @hw_value_short
180 * are only for driver use when pointers to this structure are
181 * passed around.
182 *
183 * @flags: rate-specific flags
184 * @bitrate: bitrate in units of 100 Kbps
185 * @hw_value: driver/hardware value for this rate
186 * @hw_value_short: driver/hardware value for this rate when
187 * short preamble is used
188 */
189 struct ieee80211_rate {
190 u32 flags;
191 u16 bitrate;
192 u16 hw_value, hw_value_short;
193 };
194
195 /**
196 * struct ieee80211_sta_ht_cap - STA's HT capabilities
197 *
198 * This structure describes most essential parameters needed
199 * to describe 802.11n HT capabilities for an STA.
200 *
201 * @ht_supported: is HT supported by the STA
202 * @cap: HT capabilities map as described in 802.11n spec
203 * @ampdu_factor: Maximum A-MPDU length factor
204 * @ampdu_density: Minimum A-MPDU spacing
205 * @mcs: Supported MCS rates
206 */
207 struct ieee80211_sta_ht_cap {
208 u16 cap; /* use IEEE80211_HT_CAP_ */
209 bool ht_supported;
210 u8 ampdu_factor;
211 u8 ampdu_density;
212 struct ieee80211_mcs_info mcs;
213 };
214
215 /**
216 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
217 *
218 * This structure describes most essential parameters needed
219 * to describe 802.11ac VHT capabilities for an STA.
220 *
221 * @vht_supported: is VHT supported by the STA
222 * @cap: VHT capabilities map as described in 802.11ac spec
223 * @vht_mcs: Supported VHT MCS rates
224 */
225 struct ieee80211_sta_vht_cap {
226 bool vht_supported;
227 u32 cap; /* use IEEE80211_VHT_CAP_ */
228 struct ieee80211_vht_mcs_info vht_mcs;
229 };
230
231 /**
232 * struct ieee80211_supported_band - frequency band definition
233 *
234 * This structure describes a frequency band a wiphy
235 * is able to operate in.
236 *
237 * @channels: Array of channels the hardware can operate in
238 * in this band.
239 * @band: the band this structure represents
240 * @n_channels: Number of channels in @channels
241 * @bitrates: Array of bitrates the hardware can operate with
242 * in this band. Must be sorted to give a valid "supported
243 * rates" IE, i.e. CCK rates first, then OFDM.
244 * @n_bitrates: Number of bitrates in @bitrates
245 * @ht_cap: HT capabilities in this band
246 */
247 struct ieee80211_supported_band {
248 struct ieee80211_channel *channels;
249 struct ieee80211_rate *bitrates;
250 enum ieee80211_band band;
251 int n_channels;
252 int n_bitrates;
253 struct ieee80211_sta_ht_cap ht_cap;
254 struct ieee80211_sta_vht_cap vht_cap;
255 };
256
257 /*
258 * Wireless hardware/device configuration structures and methods
259 */
260
261 /**
262 * DOC: Actions and configuration
263 *
264 * Each wireless device and each virtual interface offer a set of configuration
265 * operations and other actions that are invoked by userspace. Each of these
266 * actions is described in the operations structure, and the parameters these
267 * operations use are described separately.
268 *
269 * Additionally, some operations are asynchronous and expect to get status
270 * information via some functions that drivers need to call.
271 *
272 * Scanning and BSS list handling with its associated functionality is described
273 * in a separate chapter.
274 */
275
276 /**
277 * struct vif_params - describes virtual interface parameters
278 * @use_4addr: use 4-address frames
279 */
280 struct vif_params {
281 int use_4addr;
282 };
283
284 /**
285 * struct key_params - key information
286 *
287 * Information about a key
288 *
289 * @key: key material
290 * @key_len: length of key material
291 * @cipher: cipher suite selector
292 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
293 * with the get_key() callback, must be in little endian,
294 * length given by @seq_len.
295 * @seq_len: length of @seq.
296 */
297 struct key_params {
298 u8 *key;
299 u8 *seq;
300 int key_len;
301 int seq_len;
302 u32 cipher;
303 };
304
305 /**
306 * enum survey_info_flags - survey information flags
307 *
308 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
309 * @SURVEY_INFO_IN_USE: channel is currently being used
310 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
311 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
312 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
313 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
314 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
315 *
316 * Used by the driver to indicate which info in &struct survey_info
317 * it has filled in during the get_survey().
318 */
319 enum survey_info_flags {
320 SURVEY_INFO_NOISE_DBM = 1<<0,
321 SURVEY_INFO_IN_USE = 1<<1,
322 SURVEY_INFO_CHANNEL_TIME = 1<<2,
323 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
324 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
325 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
326 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
327 };
328
329 /**
330 * struct survey_info - channel survey response
331 *
332 * @channel: the channel this survey record reports, mandatory
333 * @filled: bitflag of flags from &enum survey_info_flags
334 * @noise: channel noise in dBm. This and all following fields are
335 * optional
336 * @channel_time: amount of time in ms the radio spent on the channel
337 * @channel_time_busy: amount of time the primary channel was sensed busy
338 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
339 * @channel_time_rx: amount of time the radio spent receiving data
340 * @channel_time_tx: amount of time the radio spent transmitting data
341 *
342 * Used by dump_survey() to report back per-channel survey information.
343 *
344 * This structure can later be expanded with things like
345 * channel duty cycle etc.
346 */
347 struct survey_info {
348 struct ieee80211_channel *channel;
349 u64 channel_time;
350 u64 channel_time_busy;
351 u64 channel_time_ext_busy;
352 u64 channel_time_rx;
353 u64 channel_time_tx;
354 u32 filled;
355 s8 noise;
356 };
357
358 /**
359 * struct cfg80211_crypto_settings - Crypto settings
360 * @wpa_versions: indicates which, if any, WPA versions are enabled
361 * (from enum nl80211_wpa_versions)
362 * @cipher_group: group key cipher suite (or 0 if unset)
363 * @n_ciphers_pairwise: number of AP supported unicast ciphers
364 * @ciphers_pairwise: unicast key cipher suites
365 * @n_akm_suites: number of AKM suites
366 * @akm_suites: AKM suites
367 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
368 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
369 * required to assume that the port is unauthorized until authorized by
370 * user space. Otherwise, port is marked authorized by default.
371 * @control_port_ethertype: the control port protocol that should be
372 * allowed through even on unauthorized ports
373 * @control_port_no_encrypt: TRUE to prevent encryption of control port
374 * protocol frames.
375 */
376 struct cfg80211_crypto_settings {
377 u32 wpa_versions;
378 u32 cipher_group;
379 int n_ciphers_pairwise;
380 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
381 int n_akm_suites;
382 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
383 bool control_port;
384 __be16 control_port_ethertype;
385 bool control_port_no_encrypt;
386 };
387
388 /**
389 * struct cfg80211_beacon_data - beacon data
390 * @head: head portion of beacon (before TIM IE)
391 * or %NULL if not changed
392 * @tail: tail portion of beacon (after TIM IE)
393 * or %NULL if not changed
394 * @head_len: length of @head
395 * @tail_len: length of @tail
396 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
397 * @beacon_ies_len: length of beacon_ies in octets
398 * @proberesp_ies: extra information element(s) to add into Probe Response
399 * frames or %NULL
400 * @proberesp_ies_len: length of proberesp_ies in octets
401 * @assocresp_ies: extra information element(s) to add into (Re)Association
402 * Response frames or %NULL
403 * @assocresp_ies_len: length of assocresp_ies in octets
404 * @probe_resp_len: length of probe response template (@probe_resp)
405 * @probe_resp: probe response template (AP mode only)
406 */
407 struct cfg80211_beacon_data {
408 const u8 *head, *tail;
409 const u8 *beacon_ies;
410 const u8 *proberesp_ies;
411 const u8 *assocresp_ies;
412 const u8 *probe_resp;
413
414 size_t head_len, tail_len;
415 size_t beacon_ies_len;
416 size_t proberesp_ies_len;
417 size_t assocresp_ies_len;
418 size_t probe_resp_len;
419 };
420
421 /**
422 * struct cfg80211_ap_settings - AP configuration
423 *
424 * Used to configure an AP interface.
425 *
426 * @channel: the channel to start the AP on
427 * @channel_type: the channel type to use
428 * @beacon: beacon data
429 * @beacon_interval: beacon interval
430 * @dtim_period: DTIM period
431 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
432 * user space)
433 * @ssid_len: length of @ssid
434 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
435 * @crypto: crypto settings
436 * @privacy: the BSS uses privacy
437 * @auth_type: Authentication type (algorithm)
438 * @inactivity_timeout: time in seconds to determine station's inactivity.
439 */
440 struct cfg80211_ap_settings {
441 struct ieee80211_channel *channel;
442 enum nl80211_channel_type channel_type;
443
444 struct cfg80211_beacon_data beacon;
445
446 int beacon_interval, dtim_period;
447 const u8 *ssid;
448 size_t ssid_len;
449 enum nl80211_hidden_ssid hidden_ssid;
450 struct cfg80211_crypto_settings crypto;
451 bool privacy;
452 enum nl80211_auth_type auth_type;
453 int inactivity_timeout;
454 };
455
456 /**
457 * enum plink_action - actions to perform in mesh peers
458 *
459 * @PLINK_ACTION_INVALID: action 0 is reserved
460 * @PLINK_ACTION_OPEN: start mesh peer link establishment
461 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
462 */
463 enum plink_actions {
464 PLINK_ACTION_INVALID,
465 PLINK_ACTION_OPEN,
466 PLINK_ACTION_BLOCK,
467 };
468
469 /**
470 * enum station_parameters_apply_mask - station parameter values to apply
471 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
472 *
473 * Not all station parameters have in-band "no change" signalling,
474 * for those that don't these flags will are used.
475 */
476 enum station_parameters_apply_mask {
477 STATION_PARAM_APPLY_UAPSD = BIT(0),
478 };
479
480 /**
481 * struct station_parameters - station parameters
482 *
483 * Used to change and create a new station.
484 *
485 * @vlan: vlan interface station should belong to
486 * @supported_rates: supported rates in IEEE 802.11 format
487 * (or NULL for no change)
488 * @supported_rates_len: number of supported rates
489 * @sta_flags_mask: station flags that changed
490 * (bitmask of BIT(NL80211_STA_FLAG_...))
491 * @sta_flags_set: station flags values
492 * (bitmask of BIT(NL80211_STA_FLAG_...))
493 * @listen_interval: listen interval or -1 for no change
494 * @aid: AID or zero for no change
495 * @plink_action: plink action to take
496 * @plink_state: set the peer link state for a station
497 * @ht_capa: HT capabilities of station
498 * @uapsd_queues: bitmap of queues configured for uapsd. same format
499 * as the AC bitmap in the QoS info field
500 * @max_sp: max Service Period. same format as the MAX_SP in the
501 * QoS info field (but already shifted down)
502 * @sta_modify_mask: bitmap indicating which parameters changed
503 * (for those that don't have a natural "no change" value),
504 * see &enum station_parameters_apply_mask
505 */
506 struct station_parameters {
507 u8 *supported_rates;
508 struct net_device *vlan;
509 u32 sta_flags_mask, sta_flags_set;
510 u32 sta_modify_mask;
511 int listen_interval;
512 u16 aid;
513 u8 supported_rates_len;
514 u8 plink_action;
515 u8 plink_state;
516 struct ieee80211_ht_cap *ht_capa;
517 u8 uapsd_queues;
518 u8 max_sp;
519 };
520
521 /**
522 * enum station_info_flags - station information flags
523 *
524 * Used by the driver to indicate which info in &struct station_info
525 * it has filled in during get_station() or dump_station().
526 *
527 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
528 * @STATION_INFO_RX_BYTES: @rx_bytes filled
529 * @STATION_INFO_TX_BYTES: @tx_bytes filled
530 * @STATION_INFO_LLID: @llid filled
531 * @STATION_INFO_PLID: @plid filled
532 * @STATION_INFO_PLINK_STATE: @plink_state filled
533 * @STATION_INFO_SIGNAL: @signal filled
534 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
535 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
536 * @STATION_INFO_RX_PACKETS: @rx_packets filled
537 * @STATION_INFO_TX_PACKETS: @tx_packets filled
538 * @STATION_INFO_TX_RETRIES: @tx_retries filled
539 * @STATION_INFO_TX_FAILED: @tx_failed filled
540 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
541 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
542 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
543 * @STATION_INFO_BSS_PARAM: @bss_param filled
544 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
545 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
546 * @STATION_INFO_STA_FLAGS: @sta_flags filled
547 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
548 * @STATION_INFO_T_OFFSET: @t_offset filled
549 */
550 enum station_info_flags {
551 STATION_INFO_INACTIVE_TIME = 1<<0,
552 STATION_INFO_RX_BYTES = 1<<1,
553 STATION_INFO_TX_BYTES = 1<<2,
554 STATION_INFO_LLID = 1<<3,
555 STATION_INFO_PLID = 1<<4,
556 STATION_INFO_PLINK_STATE = 1<<5,
557 STATION_INFO_SIGNAL = 1<<6,
558 STATION_INFO_TX_BITRATE = 1<<7,
559 STATION_INFO_RX_PACKETS = 1<<8,
560 STATION_INFO_TX_PACKETS = 1<<9,
561 STATION_INFO_TX_RETRIES = 1<<10,
562 STATION_INFO_TX_FAILED = 1<<11,
563 STATION_INFO_RX_DROP_MISC = 1<<12,
564 STATION_INFO_SIGNAL_AVG = 1<<13,
565 STATION_INFO_RX_BITRATE = 1<<14,
566 STATION_INFO_BSS_PARAM = 1<<15,
567 STATION_INFO_CONNECTED_TIME = 1<<16,
568 STATION_INFO_ASSOC_REQ_IES = 1<<17,
569 STATION_INFO_STA_FLAGS = 1<<18,
570 STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
571 STATION_INFO_T_OFFSET = 1<<20,
572 };
573
574 /**
575 * enum station_info_rate_flags - bitrate info flags
576 *
577 * Used by the driver to indicate the specific rate transmission
578 * type for 802.11n transmissions.
579 *
580 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
581 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
582 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
583 * @RATE_INFO_FLAGS_60G: 60gHz MCS
584 */
585 enum rate_info_flags {
586 RATE_INFO_FLAGS_MCS = 1<<0,
587 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
588 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
589 RATE_INFO_FLAGS_60G = 1<<3,
590 };
591
592 /**
593 * struct rate_info - bitrate information
594 *
595 * Information about a receiving or transmitting bitrate
596 *
597 * @flags: bitflag of flags from &enum rate_info_flags
598 * @mcs: mcs index if struct describes a 802.11n bitrate
599 * @legacy: bitrate in 100kbit/s for 802.11abg
600 */
601 struct rate_info {
602 u8 flags;
603 u8 mcs;
604 u16 legacy;
605 };
606
607 /**
608 * enum station_info_rate_flags - bitrate info flags
609 *
610 * Used by the driver to indicate the specific rate transmission
611 * type for 802.11n transmissions.
612 *
613 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
614 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
615 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
616 */
617 enum bss_param_flags {
618 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
619 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
620 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
621 };
622
623 /**
624 * struct sta_bss_parameters - BSS parameters for the attached station
625 *
626 * Information about the currently associated BSS
627 *
628 * @flags: bitflag of flags from &enum bss_param_flags
629 * @dtim_period: DTIM period for the BSS
630 * @beacon_interval: beacon interval
631 */
632 struct sta_bss_parameters {
633 u8 flags;
634 u8 dtim_period;
635 u16 beacon_interval;
636 };
637
638 /**
639 * struct station_info - station information
640 *
641 * Station information filled by driver for get_station() and dump_station.
642 *
643 * @filled: bitflag of flags from &enum station_info_flags
644 * @connected_time: time(in secs) since a station is last connected
645 * @inactive_time: time since last station activity (tx/rx) in milliseconds
646 * @rx_bytes: bytes received from this station
647 * @tx_bytes: bytes transmitted to this station
648 * @llid: mesh local link id
649 * @plid: mesh peer link id
650 * @plink_state: mesh peer link state
651 * @signal: The signal strength, type depends on the wiphy's signal_type.
652 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
653 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
654 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
655 * @txrate: current unicast bitrate from this station
656 * @rxrate: current unicast bitrate to this station
657 * @rx_packets: packets received from this station
658 * @tx_packets: packets transmitted to this station
659 * @tx_retries: cumulative retry counts
660 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
661 * @rx_dropped_misc: Dropped for un-specified reason.
662 * @bss_param: current BSS parameters
663 * @generation: generation number for nl80211 dumps.
664 * This number should increase every time the list of stations
665 * changes, i.e. when a station is added or removed, so that
666 * userspace can tell whether it got a consistent snapshot.
667 * @assoc_req_ies: IEs from (Re)Association Request.
668 * This is used only when in AP mode with drivers that do not use
669 * user space MLME/SME implementation. The information is provided for
670 * the cfg80211_new_sta() calls to notify user space of the IEs.
671 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
672 * @sta_flags: station flags mask & values
673 * @beacon_loss_count: Number of times beacon loss event has triggered.
674 * @t_offset: Time offset of the station relative to this host.
675 */
676 struct station_info {
677 u32 filled;
678 u32 connected_time;
679 u32 inactive_time;
680 u32 rx_bytes;
681 u32 tx_bytes;
682 u16 llid;
683 u16 plid;
684 u8 plink_state;
685 s8 signal;
686 s8 signal_avg;
687 struct rate_info txrate;
688 struct rate_info rxrate;
689 u32 rx_packets;
690 u32 tx_packets;
691 u32 tx_retries;
692 u32 tx_failed;
693 u32 rx_dropped_misc;
694 struct sta_bss_parameters bss_param;
695 struct nl80211_sta_flag_update sta_flags;
696
697 int generation;
698
699 const u8 *assoc_req_ies;
700 size_t assoc_req_ies_len;
701
702 u32 beacon_loss_count;
703 s64 t_offset;
704
705 /*
706 * Note: Add a new enum station_info_flags value for each new field and
707 * use it to check which fields are initialized.
708 */
709 };
710
711 /**
712 * enum monitor_flags - monitor flags
713 *
714 * Monitor interface configuration flags. Note that these must be the bits
715 * according to the nl80211 flags.
716 *
717 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
718 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
719 * @MONITOR_FLAG_CONTROL: pass control frames
720 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
721 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
722 */
723 enum monitor_flags {
724 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
725 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
726 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
727 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
728 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
729 };
730
731 /**
732 * enum mpath_info_flags - mesh path information flags
733 *
734 * Used by the driver to indicate which info in &struct mpath_info it has filled
735 * in during get_station() or dump_station().
736 *
737 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
738 * @MPATH_INFO_SN: @sn filled
739 * @MPATH_INFO_METRIC: @metric filled
740 * @MPATH_INFO_EXPTIME: @exptime filled
741 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
742 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
743 * @MPATH_INFO_FLAGS: @flags filled
744 */
745 enum mpath_info_flags {
746 MPATH_INFO_FRAME_QLEN = BIT(0),
747 MPATH_INFO_SN = BIT(1),
748 MPATH_INFO_METRIC = BIT(2),
749 MPATH_INFO_EXPTIME = BIT(3),
750 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
751 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
752 MPATH_INFO_FLAGS = BIT(6),
753 };
754
755 /**
756 * struct mpath_info - mesh path information
757 *
758 * Mesh path information filled by driver for get_mpath() and dump_mpath().
759 *
760 * @filled: bitfield of flags from &enum mpath_info_flags
761 * @frame_qlen: number of queued frames for this destination
762 * @sn: target sequence number
763 * @metric: metric (cost) of this mesh path
764 * @exptime: expiration time for the mesh path from now, in msecs
765 * @flags: mesh path flags
766 * @discovery_timeout: total mesh path discovery timeout, in msecs
767 * @discovery_retries: mesh path discovery retries
768 * @generation: generation number for nl80211 dumps.
769 * This number should increase every time the list of mesh paths
770 * changes, i.e. when a station is added or removed, so that
771 * userspace can tell whether it got a consistent snapshot.
772 */
773 struct mpath_info {
774 u32 filled;
775 u32 frame_qlen;
776 u32 sn;
777 u32 metric;
778 u32 exptime;
779 u32 discovery_timeout;
780 u8 discovery_retries;
781 u8 flags;
782
783 int generation;
784 };
785
786 /**
787 * struct bss_parameters - BSS parameters
788 *
789 * Used to change BSS parameters (mainly for AP mode).
790 *
791 * @use_cts_prot: Whether to use CTS protection
792 * (0 = no, 1 = yes, -1 = do not change)
793 * @use_short_preamble: Whether the use of short preambles is allowed
794 * (0 = no, 1 = yes, -1 = do not change)
795 * @use_short_slot_time: Whether the use of short slot time is allowed
796 * (0 = no, 1 = yes, -1 = do not change)
797 * @basic_rates: basic rates in IEEE 802.11 format
798 * (or NULL for no change)
799 * @basic_rates_len: number of basic rates
800 * @ap_isolate: do not forward packets between connected stations
801 * @ht_opmode: HT Operation mode
802 * (u16 = opmode, -1 = do not change)
803 */
804 struct bss_parameters {
805 int use_cts_prot;
806 int use_short_preamble;
807 int use_short_slot_time;
808 u8 *basic_rates;
809 u8 basic_rates_len;
810 int ap_isolate;
811 int ht_opmode;
812 };
813
814 /**
815 * struct mesh_config - 802.11s mesh configuration
816 *
817 * These parameters can be changed while the mesh is active.
818 *
819 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
820 * by the Mesh Peering Open message
821 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
822 * used by the Mesh Peering Open message
823 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
824 * the mesh peering management to close a mesh peering
825 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
826 * mesh interface
827 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
828 * be sent to establish a new peer link instance in a mesh
829 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
830 * @element_ttl: the value of TTL field set at a mesh STA for path selection
831 * elements
832 * @auto_open_plinks: whether we should automatically open peer links when we
833 * detect compatible mesh peers
834 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
835 * synchronize to for 11s default synchronization method
836 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
837 * that an originator mesh STA can send to a particular path target
838 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
839 * @min_discovery_timeout: the minimum length of time to wait until giving up on
840 * a path discovery in milliseconds
841 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
842 * receiving a PREQ shall consider the forwarding information from the
843 * root to be valid. (TU = time unit)
844 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
845 * which a mesh STA can send only one action frame containing a PREQ
846 * element
847 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
848 * which a mesh STA can send only one Action frame containing a PERR
849 * element
850 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
851 * it takes for an HWMP information element to propagate across the mesh
852 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
853 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
854 * announcements are transmitted
855 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
856 * station has access to a broader network beyond the MBSS. (This is
857 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
858 * only means that the station will announce others it's a mesh gate, but
859 * not necessarily using the gate announcement protocol. Still keeping the
860 * same nomenclature to be in sync with the spec)
861 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
862 * entity (default is TRUE - forwarding entity)
863 * @rssi_threshold: the threshold for average signal strength of candidate
864 * station to establish a peer link
865 * @ht_opmode: mesh HT protection mode
866 *
867 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
868 * receiving a proactive PREQ shall consider the forwarding information to
869 * the root mesh STA to be valid.
870 *
871 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
872 * PREQs are transmitted.
873 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
874 * during which a mesh STA can send only one Action frame containing
875 * a PREQ element for root path confirmation.
876 */
877 struct mesh_config {
878 u16 dot11MeshRetryTimeout;
879 u16 dot11MeshConfirmTimeout;
880 u16 dot11MeshHoldingTimeout;
881 u16 dot11MeshMaxPeerLinks;
882 u8 dot11MeshMaxRetries;
883 u8 dot11MeshTTL;
884 u8 element_ttl;
885 bool auto_open_plinks;
886 u32 dot11MeshNbrOffsetMaxNeighbor;
887 u8 dot11MeshHWMPmaxPREQretries;
888 u32 path_refresh_time;
889 u16 min_discovery_timeout;
890 u32 dot11MeshHWMPactivePathTimeout;
891 u16 dot11MeshHWMPpreqMinInterval;
892 u16 dot11MeshHWMPperrMinInterval;
893 u16 dot11MeshHWMPnetDiameterTraversalTime;
894 u8 dot11MeshHWMPRootMode;
895 u16 dot11MeshHWMPRannInterval;
896 bool dot11MeshGateAnnouncementProtocol;
897 bool dot11MeshForwarding;
898 s32 rssi_threshold;
899 u16 ht_opmode;
900 u32 dot11MeshHWMPactivePathToRootTimeout;
901 u16 dot11MeshHWMProotInterval;
902 u16 dot11MeshHWMPconfirmationInterval;
903 };
904
905 /**
906 * struct mesh_setup - 802.11s mesh setup configuration
907 * @channel: the channel to start the mesh network on
908 * @channel_type: the channel type to use
909 * @mesh_id: the mesh ID
910 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
911 * @sync_method: which synchronization method to use
912 * @path_sel_proto: which path selection protocol to use
913 * @path_metric: which metric to use
914 * @ie: vendor information elements (optional)
915 * @ie_len: length of vendor information elements
916 * @is_authenticated: this mesh requires authentication
917 * @is_secure: this mesh uses security
918 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
919 *
920 * These parameters are fixed when the mesh is created.
921 */
922 struct mesh_setup {
923 struct ieee80211_channel *channel;
924 enum nl80211_channel_type channel_type;
925 const u8 *mesh_id;
926 u8 mesh_id_len;
927 u8 sync_method;
928 u8 path_sel_proto;
929 u8 path_metric;
930 const u8 *ie;
931 u8 ie_len;
932 bool is_authenticated;
933 bool is_secure;
934 int mcast_rate[IEEE80211_NUM_BANDS];
935 };
936
937 /**
938 * struct ieee80211_txq_params - TX queue parameters
939 * @ac: AC identifier
940 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
941 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
942 * 1..32767]
943 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
944 * 1..32767]
945 * @aifs: Arbitration interframe space [0..255]
946 */
947 struct ieee80211_txq_params {
948 enum nl80211_ac ac;
949 u16 txop;
950 u16 cwmin;
951 u16 cwmax;
952 u8 aifs;
953 };
954
955 /* from net/wireless.h */
956 struct wiphy;
957
958 /**
959 * DOC: Scanning and BSS list handling
960 *
961 * The scanning process itself is fairly simple, but cfg80211 offers quite
962 * a bit of helper functionality. To start a scan, the scan operation will
963 * be invoked with a scan definition. This scan definition contains the
964 * channels to scan, and the SSIDs to send probe requests for (including the
965 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
966 * probe. Additionally, a scan request may contain extra information elements
967 * that should be added to the probe request. The IEs are guaranteed to be
968 * well-formed, and will not exceed the maximum length the driver advertised
969 * in the wiphy structure.
970 *
971 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
972 * it is responsible for maintaining the BSS list; the driver should not
973 * maintain a list itself. For this notification, various functions exist.
974 *
975 * Since drivers do not maintain a BSS list, there are also a number of
976 * functions to search for a BSS and obtain information about it from the
977 * BSS structure cfg80211 maintains. The BSS list is also made available
978 * to userspace.
979 */
980
981 /**
982 * struct cfg80211_ssid - SSID description
983 * @ssid: the SSID
984 * @ssid_len: length of the ssid
985 */
986 struct cfg80211_ssid {
987 u8 ssid[IEEE80211_MAX_SSID_LEN];
988 u8 ssid_len;
989 };
990
991 /**
992 * struct cfg80211_scan_request - scan request description
993 *
994 * @ssids: SSIDs to scan for (active scan only)
995 * @n_ssids: number of SSIDs
996 * @channels: channels to scan on.
997 * @n_channels: total number of channels to scan
998 * @ie: optional information element(s) to add into Probe Request or %NULL
999 * @ie_len: length of ie in octets
1000 * @rates: bitmap of rates to advertise for each band
1001 * @wiphy: the wiphy this was for
1002 * @wdev: the wireless device to scan for
1003 * @aborted: (internal) scan request was notified as aborted
1004 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1005 */
1006 struct cfg80211_scan_request {
1007 struct cfg80211_ssid *ssids;
1008 int n_ssids;
1009 u32 n_channels;
1010 const u8 *ie;
1011 size_t ie_len;
1012
1013 u32 rates[IEEE80211_NUM_BANDS];
1014
1015 struct wireless_dev *wdev;
1016
1017 /* internal */
1018 struct wiphy *wiphy;
1019 bool aborted;
1020 bool no_cck;
1021
1022 /* keep last */
1023 struct ieee80211_channel *channels[0];
1024 };
1025
1026 /**
1027 * struct cfg80211_match_set - sets of attributes to match
1028 *
1029 * @ssid: SSID to be matched
1030 */
1031 struct cfg80211_match_set {
1032 struct cfg80211_ssid ssid;
1033 };
1034
1035 /**
1036 * struct cfg80211_sched_scan_request - scheduled scan request description
1037 *
1038 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1039 * @n_ssids: number of SSIDs
1040 * @n_channels: total number of channels to scan
1041 * @interval: interval between each scheduled scan cycle
1042 * @ie: optional information element(s) to add into Probe Request or %NULL
1043 * @ie_len: length of ie in octets
1044 * @match_sets: sets of parameters to be matched for a scan result
1045 * entry to be considered valid and to be passed to the host
1046 * (others are filtered out).
1047 * If ommited, all results are passed.
1048 * @n_match_sets: number of match sets
1049 * @wiphy: the wiphy this was for
1050 * @dev: the interface
1051 * @channels: channels to scan
1052 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1053 */
1054 struct cfg80211_sched_scan_request {
1055 struct cfg80211_ssid *ssids;
1056 int n_ssids;
1057 u32 n_channels;
1058 u32 interval;
1059 const u8 *ie;
1060 size_t ie_len;
1061 struct cfg80211_match_set *match_sets;
1062 int n_match_sets;
1063 s32 rssi_thold;
1064
1065 /* internal */
1066 struct wiphy *wiphy;
1067 struct net_device *dev;
1068
1069 /* keep last */
1070 struct ieee80211_channel *channels[0];
1071 };
1072
1073 /**
1074 * enum cfg80211_signal_type - signal type
1075 *
1076 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1077 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1078 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1079 */
1080 enum cfg80211_signal_type {
1081 CFG80211_SIGNAL_TYPE_NONE,
1082 CFG80211_SIGNAL_TYPE_MBM,
1083 CFG80211_SIGNAL_TYPE_UNSPEC,
1084 };
1085
1086 /**
1087 * struct cfg80211_bss - BSS description
1088 *
1089 * This structure describes a BSS (which may also be a mesh network)
1090 * for use in scan results and similar.
1091 *
1092 * @channel: channel this BSS is on
1093 * @bssid: BSSID of the BSS
1094 * @tsf: timestamp of last received update
1095 * @beacon_interval: the beacon interval as from the frame
1096 * @capability: the capability field in host byte order
1097 * @information_elements: the information elements (Note that there
1098 * is no guarantee that these are well-formed!); this is a pointer to
1099 * either the beacon_ies or proberesp_ies depending on whether Probe
1100 * Response frame has been received
1101 * @len_information_elements: total length of the information elements
1102 * @beacon_ies: the information elements from the last Beacon frame
1103 * @len_beacon_ies: total length of the beacon_ies
1104 * @proberesp_ies: the information elements from the last Probe Response frame
1105 * @len_proberesp_ies: total length of the proberesp_ies
1106 * @signal: signal strength value (type depends on the wiphy's signal_type)
1107 * @free_priv: function pointer to free private data
1108 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1109 */
1110 struct cfg80211_bss {
1111 struct ieee80211_channel *channel;
1112
1113 u8 bssid[ETH_ALEN];
1114 u64 tsf;
1115 u16 beacon_interval;
1116 u16 capability;
1117 u8 *information_elements;
1118 size_t len_information_elements;
1119 u8 *beacon_ies;
1120 size_t len_beacon_ies;
1121 u8 *proberesp_ies;
1122 size_t len_proberesp_ies;
1123
1124 s32 signal;
1125
1126 void (*free_priv)(struct cfg80211_bss *bss);
1127 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
1128 };
1129
1130 /**
1131 * ieee80211_bss_get_ie - find IE with given ID
1132 * @bss: the bss to search
1133 * @ie: the IE ID
1134 * Returns %NULL if not found.
1135 */
1136 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1137
1138
1139 /**
1140 * struct cfg80211_auth_request - Authentication request data
1141 *
1142 * This structure provides information needed to complete IEEE 802.11
1143 * authentication.
1144 *
1145 * @bss: The BSS to authenticate with.
1146 * @auth_type: Authentication type (algorithm)
1147 * @ie: Extra IEs to add to Authentication frame or %NULL
1148 * @ie_len: Length of ie buffer in octets
1149 * @key_len: length of WEP key for shared key authentication
1150 * @key_idx: index of WEP key for shared key authentication
1151 * @key: WEP key for shared key authentication
1152 */
1153 struct cfg80211_auth_request {
1154 struct cfg80211_bss *bss;
1155 const u8 *ie;
1156 size_t ie_len;
1157 enum nl80211_auth_type auth_type;
1158 const u8 *key;
1159 u8 key_len, key_idx;
1160 };
1161
1162 /**
1163 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1164 *
1165 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1166 */
1167 enum cfg80211_assoc_req_flags {
1168 ASSOC_REQ_DISABLE_HT = BIT(0),
1169 };
1170
1171 /**
1172 * struct cfg80211_assoc_request - (Re)Association request data
1173 *
1174 * This structure provides information needed to complete IEEE 802.11
1175 * (re)association.
1176 * @bss: The BSS to associate with. If the call is successful the driver
1177 * is given a reference that it must release, normally via a call to
1178 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1179 * call to cfg80211_put_bss() (in addition to calling
1180 * cfg80211_send_assoc_timeout())
1181 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1182 * @ie_len: Length of ie buffer in octets
1183 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1184 * @crypto: crypto settings
1185 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1186 * @flags: See &enum cfg80211_assoc_req_flags
1187 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1188 * will be used in ht_capa. Un-supported values will be ignored.
1189 * @ht_capa_mask: The bits of ht_capa which are to be used.
1190 */
1191 struct cfg80211_assoc_request {
1192 struct cfg80211_bss *bss;
1193 const u8 *ie, *prev_bssid;
1194 size_t ie_len;
1195 struct cfg80211_crypto_settings crypto;
1196 bool use_mfp;
1197 u32 flags;
1198 struct ieee80211_ht_cap ht_capa;
1199 struct ieee80211_ht_cap ht_capa_mask;
1200 };
1201
1202 /**
1203 * struct cfg80211_deauth_request - Deauthentication request data
1204 *
1205 * This structure provides information needed to complete IEEE 802.11
1206 * deauthentication.
1207 *
1208 * @bssid: the BSSID of the BSS to deauthenticate from
1209 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1210 * @ie_len: Length of ie buffer in octets
1211 * @reason_code: The reason code for the deauthentication
1212 */
1213 struct cfg80211_deauth_request {
1214 const u8 *bssid;
1215 const u8 *ie;
1216 size_t ie_len;
1217 u16 reason_code;
1218 };
1219
1220 /**
1221 * struct cfg80211_disassoc_request - Disassociation request data
1222 *
1223 * This structure provides information needed to complete IEEE 802.11
1224 * disassocation.
1225 *
1226 * @bss: the BSS to disassociate from
1227 * @ie: Extra IEs to add to Disassociation frame or %NULL
1228 * @ie_len: Length of ie buffer in octets
1229 * @reason_code: The reason code for the disassociation
1230 * @local_state_change: This is a request for a local state only, i.e., no
1231 * Disassociation frame is to be transmitted.
1232 */
1233 struct cfg80211_disassoc_request {
1234 struct cfg80211_bss *bss;
1235 const u8 *ie;
1236 size_t ie_len;
1237 u16 reason_code;
1238 bool local_state_change;
1239 };
1240
1241 /**
1242 * struct cfg80211_ibss_params - IBSS parameters
1243 *
1244 * This structure defines the IBSS parameters for the join_ibss()
1245 * method.
1246 *
1247 * @ssid: The SSID, will always be non-null.
1248 * @ssid_len: The length of the SSID, will always be non-zero.
1249 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1250 * search for IBSSs with a different BSSID.
1251 * @channel: The channel to use if no IBSS can be found to join.
1252 * @channel_type: channel type (HT mode)
1253 * @channel_fixed: The channel should be fixed -- do not search for
1254 * IBSSs to join on other channels.
1255 * @ie: information element(s) to include in the beacon
1256 * @ie_len: length of that
1257 * @beacon_interval: beacon interval to use
1258 * @privacy: this is a protected network, keys will be configured
1259 * after joining
1260 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1261 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1262 * required to assume that the port is unauthorized until authorized by
1263 * user space. Otherwise, port is marked authorized by default.
1264 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1265 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1266 */
1267 struct cfg80211_ibss_params {
1268 u8 *ssid;
1269 u8 *bssid;
1270 struct ieee80211_channel *channel;
1271 enum nl80211_channel_type channel_type;
1272 u8 *ie;
1273 u8 ssid_len, ie_len;
1274 u16 beacon_interval;
1275 u32 basic_rates;
1276 bool channel_fixed;
1277 bool privacy;
1278 bool control_port;
1279 int mcast_rate[IEEE80211_NUM_BANDS];
1280 };
1281
1282 /**
1283 * struct cfg80211_connect_params - Connection parameters
1284 *
1285 * This structure provides information needed to complete IEEE 802.11
1286 * authentication and association.
1287 *
1288 * @channel: The channel to use or %NULL if not specified (auto-select based
1289 * on scan results)
1290 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1291 * results)
1292 * @ssid: SSID
1293 * @ssid_len: Length of ssid in octets
1294 * @auth_type: Authentication type (algorithm)
1295 * @ie: IEs for association request
1296 * @ie_len: Length of assoc_ie in octets
1297 * @privacy: indicates whether privacy-enabled APs should be used
1298 * @crypto: crypto settings
1299 * @key_len: length of WEP key for shared key authentication
1300 * @key_idx: index of WEP key for shared key authentication
1301 * @key: WEP key for shared key authentication
1302 * @flags: See &enum cfg80211_assoc_req_flags
1303 * @bg_scan_period: Background scan period in seconds
1304 * or -1 to indicate that default value is to be used.
1305 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1306 * will be used in ht_capa. Un-supported values will be ignored.
1307 * @ht_capa_mask: The bits of ht_capa which are to be used.
1308 */
1309 struct cfg80211_connect_params {
1310 struct ieee80211_channel *channel;
1311 u8 *bssid;
1312 u8 *ssid;
1313 size_t ssid_len;
1314 enum nl80211_auth_type auth_type;
1315 u8 *ie;
1316 size_t ie_len;
1317 bool privacy;
1318 struct cfg80211_crypto_settings crypto;
1319 const u8 *key;
1320 u8 key_len, key_idx;
1321 u32 flags;
1322 int bg_scan_period;
1323 struct ieee80211_ht_cap ht_capa;
1324 struct ieee80211_ht_cap ht_capa_mask;
1325 };
1326
1327 /**
1328 * enum wiphy_params_flags - set_wiphy_params bitfield values
1329 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1330 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1331 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1332 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1333 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1334 */
1335 enum wiphy_params_flags {
1336 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
1337 WIPHY_PARAM_RETRY_LONG = 1 << 1,
1338 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
1339 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
1340 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
1341 };
1342
1343 /*
1344 * cfg80211_bitrate_mask - masks for bitrate control
1345 */
1346 struct cfg80211_bitrate_mask {
1347 struct {
1348 u32 legacy;
1349 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
1350 } control[IEEE80211_NUM_BANDS];
1351 };
1352 /**
1353 * struct cfg80211_pmksa - PMK Security Association
1354 *
1355 * This structure is passed to the set/del_pmksa() method for PMKSA
1356 * caching.
1357 *
1358 * @bssid: The AP's BSSID.
1359 * @pmkid: The PMK material itself.
1360 */
1361 struct cfg80211_pmksa {
1362 u8 *bssid;
1363 u8 *pmkid;
1364 };
1365
1366 /**
1367 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1368 * @mask: bitmask where to match pattern and where to ignore bytes,
1369 * one bit per byte, in same format as nl80211
1370 * @pattern: bytes to match where bitmask is 1
1371 * @pattern_len: length of pattern (in bytes)
1372 *
1373 * Internal note: @mask and @pattern are allocated in one chunk of
1374 * memory, free @mask only!
1375 */
1376 struct cfg80211_wowlan_trig_pkt_pattern {
1377 u8 *mask, *pattern;
1378 int pattern_len;
1379 };
1380
1381 /**
1382 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1383 *
1384 * This structure defines the enabled WoWLAN triggers for the device.
1385 * @any: wake up on any activity -- special trigger if device continues
1386 * operating as normal during suspend
1387 * @disconnect: wake up if getting disconnected
1388 * @magic_pkt: wake up on receiving magic packet
1389 * @patterns: wake up on receiving packet matching a pattern
1390 * @n_patterns: number of patterns
1391 * @gtk_rekey_failure: wake up on GTK rekey failure
1392 * @eap_identity_req: wake up on EAP identity request packet
1393 * @four_way_handshake: wake up on 4-way handshake
1394 * @rfkill_release: wake up when rfkill is released
1395 */
1396 struct cfg80211_wowlan {
1397 bool any, disconnect, magic_pkt, gtk_rekey_failure,
1398 eap_identity_req, four_way_handshake,
1399 rfkill_release;
1400 struct cfg80211_wowlan_trig_pkt_pattern *patterns;
1401 int n_patterns;
1402 };
1403
1404 /**
1405 * struct cfg80211_gtk_rekey_data - rekey data
1406 * @kek: key encryption key
1407 * @kck: key confirmation key
1408 * @replay_ctr: replay counter
1409 */
1410 struct cfg80211_gtk_rekey_data {
1411 u8 kek[NL80211_KEK_LEN];
1412 u8 kck[NL80211_KCK_LEN];
1413 u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
1414 };
1415
1416 /**
1417 * struct cfg80211_ops - backend description for wireless configuration
1418 *
1419 * This struct is registered by fullmac card drivers and/or wireless stacks
1420 * in order to handle configuration requests on their interfaces.
1421 *
1422 * All callbacks except where otherwise noted should return 0
1423 * on success or a negative error code.
1424 *
1425 * All operations are currently invoked under rtnl for consistency with the
1426 * wireless extensions but this is subject to reevaluation as soon as this
1427 * code is used more widely and we have a first user without wext.
1428 *
1429 * @suspend: wiphy device needs to be suspended. The variable @wow will
1430 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1431 * configured for the device.
1432 * @resume: wiphy device needs to be resumed
1433 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1434 * to call device_set_wakeup_enable() to enable/disable wakeup from
1435 * the device.
1436 *
1437 * @add_virtual_intf: create a new virtual interface with the given name,
1438 * must set the struct wireless_dev's iftype. Beware: You must create
1439 * the new netdev in the wiphy's network namespace! Returns the struct
1440 * wireless_dev, or an ERR_PTR.
1441 *
1442 * @del_virtual_intf: remove the virtual interface
1443 *
1444 * @change_virtual_intf: change type/configuration of virtual interface,
1445 * keep the struct wireless_dev's iftype updated.
1446 *
1447 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1448 * when adding a group key.
1449 *
1450 * @get_key: get information about the key with the given parameters.
1451 * @mac_addr will be %NULL when requesting information for a group
1452 * key. All pointers given to the @callback function need not be valid
1453 * after it returns. This function should return an error if it is
1454 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1455 *
1456 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1457 * and @key_index, return -ENOENT if the key doesn't exist.
1458 *
1459 * @set_default_key: set the default key on an interface
1460 *
1461 * @set_default_mgmt_key: set the default management frame key on an interface
1462 *
1463 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1464 *
1465 * @start_ap: Start acting in AP mode defined by the parameters.
1466 * @change_beacon: Change the beacon parameters for an access point mode
1467 * interface. This should reject the call when AP mode wasn't started.
1468 * @stop_ap: Stop being an AP, including stopping beaconing.
1469 *
1470 * @add_station: Add a new station.
1471 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1472 * @change_station: Modify a given station. Note that flags changes are not much
1473 * validated in cfg80211, in particular the auth/assoc/authorized flags
1474 * might come to the driver in invalid combinations -- make sure to check
1475 * them, also against the existing state! Also, supported_rates changes are
1476 * not checked in station mode -- drivers need to reject (or ignore) them
1477 * for anything but TDLS peers.
1478 * @get_station: get station information for the station identified by @mac
1479 * @dump_station: dump station callback -- resume dump at index @idx
1480 *
1481 * @add_mpath: add a fixed mesh path
1482 * @del_mpath: delete a given mesh path
1483 * @change_mpath: change a given mesh path
1484 * @get_mpath: get a mesh path for the given parameters
1485 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1486 * @join_mesh: join the mesh network with the specified parameters
1487 * @leave_mesh: leave the current mesh network
1488 *
1489 * @get_mesh_config: Get the current mesh configuration
1490 *
1491 * @update_mesh_config: Update mesh parameters on a running mesh.
1492 * The mask is a bitfield which tells us which parameters to
1493 * set, and which to leave alone.
1494 *
1495 * @change_bss: Modify parameters for a given BSS.
1496 *
1497 * @set_txq_params: Set TX queue parameters
1498 *
1499 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1500 * as it doesn't implement join_mesh and needs to set the channel to
1501 * join the mesh instead.
1502 *
1503 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1504 * interfaces are active this callback should reject the configuration.
1505 * If no interfaces are active or the device is down, the channel should
1506 * be stored for when a monitor interface becomes active.
1507 *
1508 * @scan: Request to do a scan. If returning zero, the scan request is given
1509 * the driver, and will be valid until passed to cfg80211_scan_done().
1510 * For scan results, call cfg80211_inform_bss(); you can call this outside
1511 * the scan/scan_done bracket too.
1512 *
1513 * @auth: Request to authenticate with the specified peer
1514 * @assoc: Request to (re)associate with the specified peer
1515 * @deauth: Request to deauthenticate from the specified peer
1516 * @disassoc: Request to disassociate from the specified peer
1517 *
1518 * @connect: Connect to the ESS with the specified parameters. When connected,
1519 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1520 * If the connection fails for some reason, call cfg80211_connect_result()
1521 * with the status from the AP.
1522 * @disconnect: Disconnect from the BSS/ESS.
1523 *
1524 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1525 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1526 * to a merge.
1527 * @leave_ibss: Leave the IBSS.
1528 *
1529 * @set_wiphy_params: Notify that wiphy parameters have changed;
1530 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1531 * have changed. The actual parameter values are available in
1532 * struct wiphy. If returning an error, no value should be changed.
1533 *
1534 * @set_tx_power: set the transmit power according to the parameters,
1535 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1536 * @get_tx_power: store the current TX power into the dbm variable;
1537 * return 0 if successful
1538 *
1539 * @set_wds_peer: set the WDS peer for a WDS interface
1540 *
1541 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1542 * functions to adjust rfkill hw state
1543 *
1544 * @dump_survey: get site survey information.
1545 *
1546 * @remain_on_channel: Request the driver to remain awake on the specified
1547 * channel for the specified duration to complete an off-channel
1548 * operation (e.g., public action frame exchange). When the driver is
1549 * ready on the requested channel, it must indicate this with an event
1550 * notification by calling cfg80211_ready_on_channel().
1551 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1552 * This allows the operation to be terminated prior to timeout based on
1553 * the duration value.
1554 * @mgmt_tx: Transmit a management frame.
1555 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1556 * frame on another channel
1557 *
1558 * @testmode_cmd: run a test mode command
1559 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1560 * used by the function, but 0 and 1 must not be touched. Additionally,
1561 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1562 * dump and return to userspace with an error, so be careful. If any data
1563 * was passed in from userspace then the data/len arguments will be present
1564 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1565 *
1566 * @set_bitrate_mask: set the bitrate mask configuration
1567 *
1568 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1569 * devices running firmwares capable of generating the (re) association
1570 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1571 * @del_pmksa: Delete a cached PMKID.
1572 * @flush_pmksa: Flush all cached PMKIDs.
1573 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1574 * allows the driver to adjust the dynamic ps timeout value.
1575 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1576 * @set_cqm_txe_config: Configure connection quality monitor TX error
1577 * thresholds.
1578 * @sched_scan_start: Tell the driver to start a scheduled scan.
1579 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1580 * scan. The driver_initiated flag specifies whether the driver
1581 * itself has informed that the scan has stopped.
1582 *
1583 * @mgmt_frame_register: Notify driver that a management frame type was
1584 * registered. Note that this callback may not sleep, and cannot run
1585 * concurrently with itself.
1586 *
1587 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1588 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1589 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1590 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1591 *
1592 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1593 *
1594 * @set_ringparam: Set tx and rx ring sizes.
1595 *
1596 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1597 *
1598 * @tdls_mgmt: Transmit a TDLS management frame.
1599 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1600 *
1601 * @probe_client: probe an associated client, must return a cookie that it
1602 * later passes to cfg80211_probe_status().
1603 *
1604 * @set_noack_map: Set the NoAck Map for the TIDs.
1605 *
1606 * @get_et_sset_count: Ethtool API to get string-set count.
1607 * See @ethtool_ops.get_sset_count
1608 *
1609 * @get_et_stats: Ethtool API to get a set of u64 stats.
1610 * See @ethtool_ops.get_ethtool_stats
1611 *
1612 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1613 * and perhaps other supported types of ethtool data-sets.
1614 * See @ethtool_ops.get_strings
1615 *
1616 * @get_channel: Get the current operating channel for the virtual interface.
1617 * For monitor interfaces, it should return %NULL unless there's a single
1618 * current monitoring channel.
1619 */
1620 struct cfg80211_ops {
1621 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
1622 int (*resume)(struct wiphy *wiphy);
1623 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
1624
1625 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
1626 char *name,
1627 enum nl80211_iftype type,
1628 u32 *flags,
1629 struct vif_params *params);
1630 int (*del_virtual_intf)(struct wiphy *wiphy,
1631 struct wireless_dev *wdev);
1632 int (*change_virtual_intf)(struct wiphy *wiphy,
1633 struct net_device *dev,
1634 enum nl80211_iftype type, u32 *flags,
1635 struct vif_params *params);
1636
1637 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1638 u8 key_index, bool pairwise, const u8 *mac_addr,
1639 struct key_params *params);
1640 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1641 u8 key_index, bool pairwise, const u8 *mac_addr,
1642 void *cookie,
1643 void (*callback)(void *cookie, struct key_params*));
1644 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1645 u8 key_index, bool pairwise, const u8 *mac_addr);
1646 int (*set_default_key)(struct wiphy *wiphy,
1647 struct net_device *netdev,
1648 u8 key_index, bool unicast, bool multicast);
1649 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1650 struct net_device *netdev,
1651 u8 key_index);
1652
1653 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
1654 struct cfg80211_ap_settings *settings);
1655 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
1656 struct cfg80211_beacon_data *info);
1657 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
1658
1659
1660 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1661 u8 *mac, struct station_parameters *params);
1662 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1663 u8 *mac);
1664 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1665 u8 *mac, struct station_parameters *params);
1666 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1667 u8 *mac, struct station_info *sinfo);
1668 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1669 int idx, u8 *mac, struct station_info *sinfo);
1670
1671 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1672 u8 *dst, u8 *next_hop);
1673 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1674 u8 *dst);
1675 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1676 u8 *dst, u8 *next_hop);
1677 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1678 u8 *dst, u8 *next_hop,
1679 struct mpath_info *pinfo);
1680 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1681 int idx, u8 *dst, u8 *next_hop,
1682 struct mpath_info *pinfo);
1683 int (*get_mesh_config)(struct wiphy *wiphy,
1684 struct net_device *dev,
1685 struct mesh_config *conf);
1686 int (*update_mesh_config)(struct wiphy *wiphy,
1687 struct net_device *dev, u32 mask,
1688 const struct mesh_config *nconf);
1689 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
1690 const struct mesh_config *conf,
1691 const struct mesh_setup *setup);
1692 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
1693
1694 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1695 struct bss_parameters *params);
1696
1697 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1698 struct ieee80211_txq_params *params);
1699
1700 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
1701 struct net_device *dev,
1702 struct ieee80211_channel *chan);
1703
1704 int (*set_monitor_channel)(struct wiphy *wiphy,
1705 struct ieee80211_channel *chan,
1706 enum nl80211_channel_type channel_type);
1707
1708 int (*scan)(struct wiphy *wiphy,
1709 struct cfg80211_scan_request *request);
1710
1711 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1712 struct cfg80211_auth_request *req);
1713 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1714 struct cfg80211_assoc_request *req);
1715 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1716 struct cfg80211_deauth_request *req);
1717 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1718 struct cfg80211_disassoc_request *req);
1719
1720 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1721 struct cfg80211_connect_params *sme);
1722 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1723 u16 reason_code);
1724
1725 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1726 struct cfg80211_ibss_params *params);
1727 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1728
1729 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1730
1731 int (*set_tx_power)(struct wiphy *wiphy,
1732 enum nl80211_tx_power_setting type, int mbm);
1733 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1734
1735 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1736 const u8 *addr);
1737
1738 void (*rfkill_poll)(struct wiphy *wiphy);
1739
1740 #ifdef CONFIG_NL80211_TESTMODE
1741 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1742 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
1743 struct netlink_callback *cb,
1744 void *data, int len);
1745 #endif
1746
1747 int (*set_bitrate_mask)(struct wiphy *wiphy,
1748 struct net_device *dev,
1749 const u8 *peer,
1750 const struct cfg80211_bitrate_mask *mask);
1751
1752 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1753 int idx, struct survey_info *info);
1754
1755 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1756 struct cfg80211_pmksa *pmksa);
1757 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1758 struct cfg80211_pmksa *pmksa);
1759 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
1760
1761 int (*remain_on_channel)(struct wiphy *wiphy,
1762 struct wireless_dev *wdev,
1763 struct ieee80211_channel *chan,
1764 enum nl80211_channel_type channel_type,
1765 unsigned int duration,
1766 u64 *cookie);
1767 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
1768 struct wireless_dev *wdev,
1769 u64 cookie);
1770
1771 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
1772 struct ieee80211_channel *chan, bool offchan,
1773 enum nl80211_channel_type channel_type,
1774 bool channel_type_valid, unsigned int wait,
1775 const u8 *buf, size_t len, bool no_cck,
1776 bool dont_wait_for_ack, u64 *cookie);
1777 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
1778 struct wireless_dev *wdev,
1779 u64 cookie);
1780
1781 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1782 bool enabled, int timeout);
1783
1784 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
1785 struct net_device *dev,
1786 s32 rssi_thold, u32 rssi_hyst);
1787
1788 int (*set_cqm_txe_config)(struct wiphy *wiphy,
1789 struct net_device *dev,
1790 u32 rate, u32 pkts, u32 intvl);
1791
1792 void (*mgmt_frame_register)(struct wiphy *wiphy,
1793 struct wireless_dev *wdev,
1794 u16 frame_type, bool reg);
1795
1796 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
1797 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
1798
1799 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
1800 void (*get_ringparam)(struct wiphy *wiphy,
1801 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1802
1803 int (*sched_scan_start)(struct wiphy *wiphy,
1804 struct net_device *dev,
1805 struct cfg80211_sched_scan_request *request);
1806 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
1807
1808 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
1809 struct cfg80211_gtk_rekey_data *data);
1810
1811 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1812 u8 *peer, u8 action_code, u8 dialog_token,
1813 u16 status_code, const u8 *buf, size_t len);
1814 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
1815 u8 *peer, enum nl80211_tdls_operation oper);
1816
1817 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
1818 const u8 *peer, u64 *cookie);
1819
1820 int (*set_noack_map)(struct wiphy *wiphy,
1821 struct net_device *dev,
1822 u16 noack_map);
1823
1824 int (*get_et_sset_count)(struct wiphy *wiphy,
1825 struct net_device *dev, int sset);
1826 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
1827 struct ethtool_stats *stats, u64 *data);
1828 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
1829 u32 sset, u8 *data);
1830
1831 struct ieee80211_channel *
1832 (*get_channel)(struct wiphy *wiphy,
1833 struct wireless_dev *wdev,
1834 enum nl80211_channel_type *type);
1835 };
1836
1837 /*
1838 * wireless hardware and networking interfaces structures
1839 * and registration/helper functions
1840 */
1841
1842 /**
1843 * enum wiphy_flags - wiphy capability flags
1844 *
1845 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1846 * has its own custom regulatory domain and cannot identify the
1847 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1848 * we will disregard the first regulatory hint (when the
1849 * initiator is %REGDOM_SET_BY_CORE).
1850 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1851 * ignore regulatory domain settings until it gets its own regulatory
1852 * domain via its regulatory_hint() unless the regulatory hint is
1853 * from a country IE. After its gets its own regulatory domain it will
1854 * only allow further regulatory domain settings to further enhance
1855 * compliance. For example if channel 13 and 14 are disabled by this
1856 * regulatory domain no user regulatory domain can enable these channels
1857 * at a later time. This can be used for devices which do not have
1858 * calibration information guaranteed for frequencies or settings
1859 * outside of its regulatory domain. If used in combination with
1860 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1861 * will be followed.
1862 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1863 * that passive scan flags and beaconing flags may not be lifted by
1864 * cfg80211 due to regulatory beacon hints. For more information on beacon
1865 * hints read the documenation for regulatory_hint_found_beacon()
1866 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1867 * wiphy at all
1868 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1869 * by default -- this flag will be set depending on the kernel's default
1870 * on wiphy_new(), but can be changed by the driver if it has a good
1871 * reason to override the default
1872 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1873 * on a VLAN interface)
1874 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1875 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1876 * control port protocol ethertype. The device also honours the
1877 * control_port_no_encrypt flag.
1878 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1879 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1880 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1881 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1882 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1883 * firmware.
1884 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1885 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1886 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1887 * link setup/discovery operations internally. Setup, discovery and
1888 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1889 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1890 * used for asking the driver/firmware to perform a TDLS operation.
1891 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1892 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1893 * when there are virtual interfaces in AP mode by calling
1894 * cfg80211_report_obss_beacon().
1895 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1896 * responds to probe-requests in hardware.
1897 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1898 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1899 */
1900 enum wiphy_flags {
1901 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
1902 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
1903 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
1904 WIPHY_FLAG_NETNS_OK = BIT(3),
1905 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
1906 WIPHY_FLAG_4ADDR_AP = BIT(5),
1907 WIPHY_FLAG_4ADDR_STATION = BIT(6),
1908 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
1909 WIPHY_FLAG_IBSS_RSN = BIT(8),
1910 WIPHY_FLAG_MESH_AUTH = BIT(10),
1911 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
1912 /* use hole at 12 */
1913 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
1914 WIPHY_FLAG_AP_UAPSD = BIT(14),
1915 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
1916 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
1917 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
1918 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
1919 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
1920 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
1921 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
1922 };
1923
1924 /**
1925 * struct ieee80211_iface_limit - limit on certain interface types
1926 * @max: maximum number of interfaces of these types
1927 * @types: interface types (bits)
1928 */
1929 struct ieee80211_iface_limit {
1930 u16 max;
1931 u16 types;
1932 };
1933
1934 /**
1935 * struct ieee80211_iface_combination - possible interface combination
1936 * @limits: limits for the given interface types
1937 * @n_limits: number of limitations
1938 * @num_different_channels: can use up to this many different channels
1939 * @max_interfaces: maximum number of interfaces in total allowed in this
1940 * group
1941 * @beacon_int_infra_match: In this combination, the beacon intervals
1942 * between infrastructure and AP types must match. This is required
1943 * only in special cases.
1944 *
1945 * These examples can be expressed as follows:
1946 *
1947 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1948 *
1949 * struct ieee80211_iface_limit limits1[] = {
1950 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1951 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1952 * };
1953 * struct ieee80211_iface_combination combination1 = {
1954 * .limits = limits1,
1955 * .n_limits = ARRAY_SIZE(limits1),
1956 * .max_interfaces = 2,
1957 * .beacon_int_infra_match = true,
1958 * };
1959 *
1960 *
1961 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1962 *
1963 * struct ieee80211_iface_limit limits2[] = {
1964 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1965 * BIT(NL80211_IFTYPE_P2P_GO), },
1966 * };
1967 * struct ieee80211_iface_combination combination2 = {
1968 * .limits = limits2,
1969 * .n_limits = ARRAY_SIZE(limits2),
1970 * .max_interfaces = 8,
1971 * .num_different_channels = 1,
1972 * };
1973 *
1974 *
1975 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1976 * This allows for an infrastructure connection and three P2P connections.
1977 *
1978 * struct ieee80211_iface_limit limits3[] = {
1979 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1980 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1981 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1982 * };
1983 * struct ieee80211_iface_combination combination3 = {
1984 * .limits = limits3,
1985 * .n_limits = ARRAY_SIZE(limits3),
1986 * .max_interfaces = 4,
1987 * .num_different_channels = 2,
1988 * };
1989 */
1990 struct ieee80211_iface_combination {
1991 const struct ieee80211_iface_limit *limits;
1992 u32 num_different_channels;
1993 u16 max_interfaces;
1994 u8 n_limits;
1995 bool beacon_int_infra_match;
1996 };
1997
1998 struct mac_address {
1999 u8 addr[ETH_ALEN];
2000 };
2001
2002 struct ieee80211_txrx_stypes {
2003 u16 tx, rx;
2004 };
2005
2006 /**
2007 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2008 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2009 * trigger that keeps the device operating as-is and
2010 * wakes up the host on any activity, for example a
2011 * received packet that passed filtering; note that the
2012 * packet should be preserved in that case
2013 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2014 * (see nl80211.h)
2015 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2016 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2017 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2018 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2019 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2020 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2021 */
2022 enum wiphy_wowlan_support_flags {
2023 WIPHY_WOWLAN_ANY = BIT(0),
2024 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
2025 WIPHY_WOWLAN_DISCONNECT = BIT(2),
2026 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
2027 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
2028 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
2029 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
2030 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
2031 };
2032
2033 /**
2034 * struct wiphy_wowlan_support - WoWLAN support data
2035 * @flags: see &enum wiphy_wowlan_support_flags
2036 * @n_patterns: number of supported wakeup patterns
2037 * (see nl80211.h for the pattern definition)
2038 * @pattern_max_len: maximum length of each pattern
2039 * @pattern_min_len: minimum length of each pattern
2040 */
2041 struct wiphy_wowlan_support {
2042 u32 flags;
2043 int n_patterns;
2044 int pattern_max_len;
2045 int pattern_min_len;
2046 };
2047
2048 /**
2049 * struct wiphy - wireless hardware description
2050 * @reg_notifier: the driver's regulatory notification callback,
2051 * note that if your driver uses wiphy_apply_custom_regulatory()
2052 * the reg_notifier's request can be passed as NULL
2053 * @regd: the driver's regulatory domain, if one was requested via
2054 * the regulatory_hint() API. This can be used by the driver
2055 * on the reg_notifier() if it chooses to ignore future
2056 * regulatory domain changes caused by other drivers.
2057 * @signal_type: signal type reported in &struct cfg80211_bss.
2058 * @cipher_suites: supported cipher suites
2059 * @n_cipher_suites: number of supported cipher suites
2060 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2061 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2062 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2063 * -1 = fragmentation disabled, only odd values >= 256 used
2064 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2065 * @_net: the network namespace this wiphy currently lives in
2066 * @perm_addr: permanent MAC address of this device
2067 * @addr_mask: If the device supports multiple MAC addresses by masking,
2068 * set this to a mask with variable bits set to 1, e.g. if the last
2069 * four bits are variable then set it to 00:...:00:0f. The actual
2070 * variable bits shall be determined by the interfaces added, with
2071 * interfaces not matching the mask being rejected to be brought up.
2072 * @n_addresses: number of addresses in @addresses.
2073 * @addresses: If the device has more than one address, set this pointer
2074 * to a list of addresses (6 bytes each). The first one will be used
2075 * by default for perm_addr. In this case, the mask should be set to
2076 * all-zeroes. In this case it is assumed that the device can handle
2077 * the same number of arbitrary MAC addresses.
2078 * @registered: protects ->resume and ->suspend sysfs callbacks against
2079 * unregister hardware
2080 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2081 * automatically on wiphy renames
2082 * @dev: (virtual) struct device for this wiphy
2083 * @registered: helps synchronize suspend/resume with wiphy unregister
2084 * @wext: wireless extension handlers
2085 * @priv: driver private data (sized according to wiphy_new() parameter)
2086 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2087 * must be set by driver
2088 * @iface_combinations: Valid interface combinations array, should not
2089 * list single interface types.
2090 * @n_iface_combinations: number of entries in @iface_combinations array.
2091 * @software_iftypes: bitmask of software interface types, these are not
2092 * subject to any restrictions since they are purely managed in SW.
2093 * @flags: wiphy flags, see &enum wiphy_flags
2094 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2095 * @bss_priv_size: each BSS struct has private data allocated with it,
2096 * this variable determines its size
2097 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2098 * any given scan
2099 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2100 * for in any given scheduled scan
2101 * @max_match_sets: maximum number of match sets the device can handle
2102 * when performing a scheduled scan, 0 if filtering is not
2103 * supported.
2104 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2105 * add to probe request frames transmitted during a scan, must not
2106 * include fixed IEs like supported rates
2107 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2108 * scans
2109 * @coverage_class: current coverage class
2110 * @fw_version: firmware version for ethtool reporting
2111 * @hw_version: hardware version for ethtool reporting
2112 * @max_num_pmkids: maximum number of PMKIDs supported by device
2113 * @privid: a pointer that drivers can use to identify if an arbitrary
2114 * wiphy is theirs, e.g. in global notifiers
2115 * @bands: information about bands/channels supported by this device
2116 *
2117 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2118 * transmitted through nl80211, points to an array indexed by interface
2119 * type
2120 *
2121 * @available_antennas_tx: bitmap of antennas which are available to be
2122 * configured as TX antennas. Antenna configuration commands will be
2123 * rejected unless this or @available_antennas_rx is set.
2124 *
2125 * @available_antennas_rx: bitmap of antennas which are available to be
2126 * configured as RX antennas. Antenna configuration commands will be
2127 * rejected unless this or @available_antennas_tx is set.
2128 *
2129 * @probe_resp_offload:
2130 * Bitmap of supported protocols for probe response offloading.
2131 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2132 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2133 *
2134 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2135 * may request, if implemented.
2136 *
2137 * @wowlan: WoWLAN support information
2138 *
2139 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2140 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2141 * If null, then none can be over-ridden.
2142 */
2143 struct wiphy {
2144 /* assign these fields before you register the wiphy */
2145
2146 /* permanent MAC address(es) */
2147 u8 perm_addr[ETH_ALEN];
2148 u8 addr_mask[ETH_ALEN];
2149
2150 struct mac_address *addresses;
2151
2152 const struct ieee80211_txrx_stypes *mgmt_stypes;
2153
2154 const struct ieee80211_iface_combination *iface_combinations;
2155 int n_iface_combinations;
2156 u16 software_iftypes;
2157
2158 u16 n_addresses;
2159
2160 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2161 u16 interface_modes;
2162
2163 u32 flags, features;
2164
2165 u32 ap_sme_capa;
2166
2167 enum cfg80211_signal_type signal_type;
2168
2169 int bss_priv_size;
2170 u8 max_scan_ssids;
2171 u8 max_sched_scan_ssids;
2172 u8 max_match_sets;
2173 u16 max_scan_ie_len;
2174 u16 max_sched_scan_ie_len;
2175
2176 int n_cipher_suites;
2177 const u32 *cipher_suites;
2178
2179 u8 retry_short;
2180 u8 retry_long;
2181 u32 frag_threshold;
2182 u32 rts_threshold;
2183 u8 coverage_class;
2184
2185 char fw_version[ETHTOOL_BUSINFO_LEN];
2186 u32 hw_version;
2187
2188 #ifdef CONFIG_PM
2189 struct wiphy_wowlan_support wowlan;
2190 #endif
2191
2192 u16 max_remain_on_channel_duration;
2193
2194 u8 max_num_pmkids;
2195
2196 u32 available_antennas_tx;
2197 u32 available_antennas_rx;
2198
2199 /*
2200 * Bitmap of supported protocols for probe response offloading
2201 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2202 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2203 */
2204 u32 probe_resp_offload;
2205
2206 /* If multiple wiphys are registered and you're handed e.g.
2207 * a regular netdev with assigned ieee80211_ptr, you won't
2208 * know whether it points to a wiphy your driver has registered
2209 * or not. Assign this to something global to your driver to
2210 * help determine whether you own this wiphy or not. */
2211 const void *privid;
2212
2213 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
2214
2215 /* Lets us get back the wiphy on the callback */
2216 int (*reg_notifier)(struct wiphy *wiphy,
2217 struct regulatory_request *request);
2218
2219 /* fields below are read-only, assigned by cfg80211 */
2220
2221 const struct ieee80211_regdomain *regd;
2222
2223 /* the item in /sys/class/ieee80211/ points to this,
2224 * you need use set_wiphy_dev() (see below) */
2225 struct device dev;
2226
2227 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2228 bool registered;
2229
2230 /* dir in debugfs: ieee80211/<wiphyname> */
2231 struct dentry *debugfsdir;
2232
2233 const struct ieee80211_ht_cap *ht_capa_mod_mask;
2234
2235 #ifdef CONFIG_NET_NS
2236 /* the network namespace this phy lives in currently */
2237 struct net *_net;
2238 #endif
2239
2240 #ifdef CONFIG_CFG80211_WEXT
2241 const struct iw_handler_def *wext;
2242 #endif
2243
2244 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
2245 };
2246
2247 static inline struct net *wiphy_net(struct wiphy *wiphy)
2248 {
2249 return read_pnet(&wiphy->_net);
2250 }
2251
2252 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
2253 {
2254 write_pnet(&wiphy->_net, net);
2255 }
2256
2257 /**
2258 * wiphy_priv - return priv from wiphy
2259 *
2260 * @wiphy: the wiphy whose priv pointer to return
2261 */
2262 static inline void *wiphy_priv(struct wiphy *wiphy)
2263 {
2264 BUG_ON(!wiphy);
2265 return &wiphy->priv;
2266 }
2267
2268 /**
2269 * priv_to_wiphy - return the wiphy containing the priv
2270 *
2271 * @priv: a pointer previously returned by wiphy_priv
2272 */
2273 static inline struct wiphy *priv_to_wiphy(void *priv)
2274 {
2275 BUG_ON(!priv);
2276 return container_of(priv, struct wiphy, priv);
2277 }
2278
2279 /**
2280 * set_wiphy_dev - set device pointer for wiphy
2281 *
2282 * @wiphy: The wiphy whose device to bind
2283 * @dev: The device to parent it to
2284 */
2285 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
2286 {
2287 wiphy->dev.parent = dev;
2288 }
2289
2290 /**
2291 * wiphy_dev - get wiphy dev pointer
2292 *
2293 * @wiphy: The wiphy whose device struct to look up
2294 */
2295 static inline struct device *wiphy_dev(struct wiphy *wiphy)
2296 {
2297 return wiphy->dev.parent;
2298 }
2299
2300 /**
2301 * wiphy_name - get wiphy name
2302 *
2303 * @wiphy: The wiphy whose name to return
2304 */
2305 static inline const char *wiphy_name(const struct wiphy *wiphy)
2306 {
2307 return dev_name(&wiphy->dev);
2308 }
2309
2310 /**
2311 * wiphy_new - create a new wiphy for use with cfg80211
2312 *
2313 * @ops: The configuration operations for this device
2314 * @sizeof_priv: The size of the private area to allocate
2315 *
2316 * Create a new wiphy and associate the given operations with it.
2317 * @sizeof_priv bytes are allocated for private use.
2318 *
2319 * The returned pointer must be assigned to each netdev's
2320 * ieee80211_ptr for proper operation.
2321 */
2322 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
2323
2324 /**
2325 * wiphy_register - register a wiphy with cfg80211
2326 *
2327 * @wiphy: The wiphy to register.
2328 *
2329 * Returns a non-negative wiphy index or a negative error code.
2330 */
2331 extern int wiphy_register(struct wiphy *wiphy);
2332
2333 /**
2334 * wiphy_unregister - deregister a wiphy from cfg80211
2335 *
2336 * @wiphy: The wiphy to unregister.
2337 *
2338 * After this call, no more requests can be made with this priv
2339 * pointer, but the call may sleep to wait for an outstanding
2340 * request that is being handled.
2341 */
2342 extern void wiphy_unregister(struct wiphy *wiphy);
2343
2344 /**
2345 * wiphy_free - free wiphy
2346 *
2347 * @wiphy: The wiphy to free
2348 */
2349 extern void wiphy_free(struct wiphy *wiphy);
2350
2351 /* internal structs */
2352 struct cfg80211_conn;
2353 struct cfg80211_internal_bss;
2354 struct cfg80211_cached_keys;
2355
2356 /**
2357 * struct wireless_dev - wireless device state
2358 *
2359 * For netdevs, this structure must be allocated by the driver
2360 * that uses the ieee80211_ptr field in struct net_device (this
2361 * is intentional so it can be allocated along with the netdev.)
2362 * It need not be registered then as netdev registration will
2363 * be intercepted by cfg80211 to see the new wireless device.
2364 *
2365 * For non-netdev uses, it must also be allocated by the driver
2366 * in response to the cfg80211 callbacks that require it, as
2367 * there's no netdev registration in that case it may not be
2368 * allocated outside of callback operations that return it.
2369 *
2370 * @wiphy: pointer to hardware description
2371 * @iftype: interface type
2372 * @list: (private) Used to collect the interfaces
2373 * @netdev: (private) Used to reference back to the netdev, may be %NULL
2374 * @identifier: (private) Identifier used in nl80211 to identify this
2375 * wireless device if it has no netdev
2376 * @current_bss: (private) Used by the internal configuration code
2377 * @channel: (private) Used by the internal configuration code to track
2378 * the user-set AP, monitor and WDS channel
2379 * @preset_chan: (private) Used by the internal configuration code to
2380 * track the channel to be used for AP later
2381 * @preset_chantype: (private) the corresponding channel type
2382 * @bssid: (private) Used by the internal configuration code
2383 * @ssid: (private) Used by the internal configuration code
2384 * @ssid_len: (private) Used by the internal configuration code
2385 * @mesh_id_len: (private) Used by the internal configuration code
2386 * @mesh_id_up_len: (private) Used by the internal configuration code
2387 * @wext: (private) Used by the internal wireless extensions compat code
2388 * @use_4addr: indicates 4addr mode is used on this interface, must be
2389 * set by driver (if supported) on add_interface BEFORE registering the
2390 * netdev and may otherwise be used by driver read-only, will be update
2391 * by cfg80211 on change_interface
2392 * @mgmt_registrations: list of registrations for management frames
2393 * @mgmt_registrations_lock: lock for the list
2394 * @mtx: mutex used to lock data in this struct
2395 * @cleanup_work: work struct used for cleanup that can't be done directly
2396 * @beacon_interval: beacon interval used on this device for transmitting
2397 * beacons, 0 when not valid
2398 */
2399 struct wireless_dev {
2400 struct wiphy *wiphy;
2401 enum nl80211_iftype iftype;
2402
2403 /* the remainder of this struct should be private to cfg80211 */
2404 struct list_head list;
2405 struct net_device *netdev;
2406
2407 u32 identifier;
2408
2409 struct list_head mgmt_registrations;
2410 spinlock_t mgmt_registrations_lock;
2411
2412 struct mutex mtx;
2413
2414 struct work_struct cleanup_work;
2415
2416 bool use_4addr;
2417
2418 /* currently used for IBSS and SME - might be rearranged later */
2419 u8 ssid[IEEE80211_MAX_SSID_LEN];
2420 u8 ssid_len, mesh_id_len, mesh_id_up_len;
2421 enum {
2422 CFG80211_SME_IDLE,
2423 CFG80211_SME_CONNECTING,
2424 CFG80211_SME_CONNECTED,
2425 } sme_state;
2426 struct cfg80211_conn *conn;
2427 struct cfg80211_cached_keys *connect_keys;
2428
2429 struct list_head event_list;
2430 spinlock_t event_lock;
2431
2432 struct cfg80211_internal_bss *current_bss; /* associated / joined */
2433 struct ieee80211_channel *preset_chan;
2434 enum nl80211_channel_type preset_chantype;
2435
2436 /* for AP and mesh channel tracking */
2437 struct ieee80211_channel *channel;
2438
2439 bool ibss_fixed;
2440
2441 bool ps;
2442 int ps_timeout;
2443
2444 int beacon_interval;
2445
2446 u32 ap_unexpected_nlpid;
2447
2448 #ifdef CONFIG_CFG80211_WEXT
2449 /* wext data */
2450 struct {
2451 struct cfg80211_ibss_params ibss;
2452 struct cfg80211_connect_params connect;
2453 struct cfg80211_cached_keys *keys;
2454 u8 *ie;
2455 size_t ie_len;
2456 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2457 u8 ssid[IEEE80211_MAX_SSID_LEN];
2458 s8 default_key, default_mgmt_key;
2459 bool prev_bssid_valid;
2460 } wext;
2461 #endif
2462 };
2463
2464 /**
2465 * wdev_priv - return wiphy priv from wireless_dev
2466 *
2467 * @wdev: The wireless device whose wiphy's priv pointer to return
2468 */
2469 static inline void *wdev_priv(struct wireless_dev *wdev)
2470 {
2471 BUG_ON(!wdev);
2472 return wiphy_priv(wdev->wiphy);
2473 }
2474
2475 /**
2476 * DOC: Utility functions
2477 *
2478 * cfg80211 offers a number of utility functions that can be useful.
2479 */
2480
2481 /**
2482 * ieee80211_channel_to_frequency - convert channel number to frequency
2483 * @chan: channel number
2484 * @band: band, necessary due to channel number overlap
2485 */
2486 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
2487
2488 /**
2489 * ieee80211_frequency_to_channel - convert frequency to channel number
2490 * @freq: center frequency
2491 */
2492 extern int ieee80211_frequency_to_channel(int freq);
2493
2494 /*
2495 * Name indirection necessary because the ieee80211 code also has
2496 * a function named "ieee80211_get_channel", so if you include
2497 * cfg80211's header file you get cfg80211's version, if you try
2498 * to include both header files you'll (rightfully!) get a symbol
2499 * clash.
2500 */
2501 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
2502 int freq);
2503 /**
2504 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2505 * @wiphy: the struct wiphy to get the channel for
2506 * @freq: the center frequency of the channel
2507 */
2508 static inline struct ieee80211_channel *
2509 ieee80211_get_channel(struct wiphy *wiphy, int freq)
2510 {
2511 return __ieee80211_get_channel(wiphy, freq);
2512 }
2513
2514 /**
2515 * ieee80211_get_response_rate - get basic rate for a given rate
2516 *
2517 * @sband: the band to look for rates in
2518 * @basic_rates: bitmap of basic rates
2519 * @bitrate: the bitrate for which to find the basic rate
2520 *
2521 * This function returns the basic rate corresponding to a given
2522 * bitrate, that is the next lower bitrate contained in the basic
2523 * rate map, which is, for this function, given as a bitmap of
2524 * indices of rates in the band's bitrate table.
2525 */
2526 struct ieee80211_rate *
2527 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
2528 u32 basic_rates, int bitrate);
2529
2530 /*
2531 * Radiotap parsing functions -- for controlled injection support
2532 *
2533 * Implemented in net/wireless/radiotap.c
2534 * Documentation in Documentation/networking/radiotap-headers.txt
2535 */
2536
2537 struct radiotap_align_size {
2538 uint8_t align:4, size:4;
2539 };
2540
2541 struct ieee80211_radiotap_namespace {
2542 const struct radiotap_align_size *align_size;
2543 int n_bits;
2544 uint32_t oui;
2545 uint8_t subns;
2546 };
2547
2548 struct ieee80211_radiotap_vendor_namespaces {
2549 const struct ieee80211_radiotap_namespace *ns;
2550 int n_ns;
2551 };
2552
2553 /**
2554 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2555 * @this_arg_index: index of current arg, valid after each successful call
2556 * to ieee80211_radiotap_iterator_next()
2557 * @this_arg: pointer to current radiotap arg; it is valid after each
2558 * call to ieee80211_radiotap_iterator_next() but also after
2559 * ieee80211_radiotap_iterator_init() where it will point to
2560 * the beginning of the actual data portion
2561 * @this_arg_size: length of the current arg, for convenience
2562 * @current_namespace: pointer to the current namespace definition
2563 * (or internally %NULL if the current namespace is unknown)
2564 * @is_radiotap_ns: indicates whether the current namespace is the default
2565 * radiotap namespace or not
2566 *
2567 * @_rtheader: pointer to the radiotap header we are walking through
2568 * @_max_length: length of radiotap header in cpu byte ordering
2569 * @_arg_index: next argument index
2570 * @_arg: next argument pointer
2571 * @_next_bitmap: internal pointer to next present u32
2572 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2573 * @_vns: vendor namespace definitions
2574 * @_next_ns_data: beginning of the next namespace's data
2575 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2576 * next bitmap word
2577 *
2578 * Describes the radiotap parser state. Fields prefixed with an underscore
2579 * must not be used by users of the parser, only by the parser internally.
2580 */
2581
2582 struct ieee80211_radiotap_iterator {
2583 struct ieee80211_radiotap_header *_rtheader;
2584 const struct ieee80211_radiotap_vendor_namespaces *_vns;
2585 const struct ieee80211_radiotap_namespace *current_namespace;
2586
2587 unsigned char *_arg, *_next_ns_data;
2588 __le32 *_next_bitmap;
2589
2590 unsigned char *this_arg;
2591 int this_arg_index;
2592 int this_arg_size;
2593
2594 int is_radiotap_ns;
2595
2596 int _max_length;
2597 int _arg_index;
2598 uint32_t _bitmap_shifter;
2599 int _reset_on_ext;
2600 };
2601
2602 extern int ieee80211_radiotap_iterator_init(
2603 struct ieee80211_radiotap_iterator *iterator,
2604 struct ieee80211_radiotap_header *radiotap_header,
2605 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
2606
2607 extern int ieee80211_radiotap_iterator_next(
2608 struct ieee80211_radiotap_iterator *iterator);
2609
2610
2611 extern const unsigned char rfc1042_header[6];
2612 extern const unsigned char bridge_tunnel_header[6];
2613
2614 /**
2615 * ieee80211_get_hdrlen_from_skb - get header length from data
2616 *
2617 * Given an skb with a raw 802.11 header at the data pointer this function
2618 * returns the 802.11 header length in bytes (not including encryption
2619 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2620 * header the function returns 0.
2621 *
2622 * @skb: the frame
2623 */
2624 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
2625
2626 /**
2627 * ieee80211_hdrlen - get header length in bytes from frame control
2628 * @fc: frame control field in little-endian format
2629 */
2630 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2631
2632 /**
2633 * DOC: Data path helpers
2634 *
2635 * In addition to generic utilities, cfg80211 also offers
2636 * functions that help implement the data path for devices
2637 * that do not do the 802.11/802.3 conversion on the device.
2638 */
2639
2640 /**
2641 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2642 * @skb: the 802.11 data frame
2643 * @addr: the device MAC address
2644 * @iftype: the virtual interface type
2645 */
2646 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2647 enum nl80211_iftype iftype);
2648
2649 /**
2650 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2651 * @skb: the 802.3 frame
2652 * @addr: the device MAC address
2653 * @iftype: the virtual interface type
2654 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2655 * @qos: build 802.11 QoS data frame
2656 */
2657 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2658 enum nl80211_iftype iftype, u8 *bssid, bool qos);
2659
2660 /**
2661 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2662 *
2663 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2664 * 802.3 frames. The @list will be empty if the decode fails. The
2665 * @skb is consumed after the function returns.
2666 *
2667 * @skb: The input IEEE 802.11n A-MSDU frame.
2668 * @list: The output list of 802.3 frames. It must be allocated and
2669 * initialized by by the caller.
2670 * @addr: The device MAC address.
2671 * @iftype: The device interface type.
2672 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2673 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2674 */
2675 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
2676 const u8 *addr, enum nl80211_iftype iftype,
2677 const unsigned int extra_headroom,
2678 bool has_80211_header);
2679
2680 /**
2681 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2682 * @skb: the data frame
2683 */
2684 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
2685
2686 /**
2687 * cfg80211_find_ie - find information element in data
2688 *
2689 * @eid: element ID
2690 * @ies: data consisting of IEs
2691 * @len: length of data
2692 *
2693 * This function will return %NULL if the element ID could
2694 * not be found or if the element is invalid (claims to be
2695 * longer than the given data), or a pointer to the first byte
2696 * of the requested element, that is the byte containing the
2697 * element ID. There are no checks on the element length
2698 * other than having to fit into the given data.
2699 */
2700 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
2701
2702 /**
2703 * cfg80211_find_vendor_ie - find vendor specific information element in data
2704 *
2705 * @oui: vendor OUI
2706 * @oui_type: vendor-specific OUI type
2707 * @ies: data consisting of IEs
2708 * @len: length of data
2709 *
2710 * This function will return %NULL if the vendor specific element ID
2711 * could not be found or if the element is invalid (claims to be
2712 * longer than the given data), or a pointer to the first byte
2713 * of the requested element, that is the byte containing the
2714 * element ID. There are no checks on the element length
2715 * other than having to fit into the given data.
2716 */
2717 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
2718 const u8 *ies, int len);
2719
2720 /**
2721 * DOC: Regulatory enforcement infrastructure
2722 *
2723 * TODO
2724 */
2725
2726 /**
2727 * regulatory_hint - driver hint to the wireless core a regulatory domain
2728 * @wiphy: the wireless device giving the hint (used only for reporting
2729 * conflicts)
2730 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2731 * should be in. If @rd is set this should be NULL. Note that if you
2732 * set this to NULL you should still set rd->alpha2 to some accepted
2733 * alpha2.
2734 *
2735 * Wireless drivers can use this function to hint to the wireless core
2736 * what it believes should be the current regulatory domain by
2737 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2738 * domain should be in or by providing a completely build regulatory domain.
2739 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2740 * for a regulatory domain structure for the respective country.
2741 *
2742 * The wiphy must have been registered to cfg80211 prior to this call.
2743 * For cfg80211 drivers this means you must first use wiphy_register(),
2744 * for mac80211 drivers you must first use ieee80211_register_hw().
2745 *
2746 * Drivers should check the return value, its possible you can get
2747 * an -ENOMEM.
2748 */
2749 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
2750
2751 /**
2752 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2753 * @wiphy: the wireless device we want to process the regulatory domain on
2754 * @regd: the custom regulatory domain to use for this wiphy
2755 *
2756 * Drivers can sometimes have custom regulatory domains which do not apply
2757 * to a specific country. Drivers can use this to apply such custom regulatory
2758 * domains. This routine must be called prior to wiphy registration. The
2759 * custom regulatory domain will be trusted completely and as such previous
2760 * default channel settings will be disregarded. If no rule is found for a
2761 * channel on the regulatory domain the channel will be disabled.
2762 */
2763 extern void wiphy_apply_custom_regulatory(
2764 struct wiphy *wiphy,
2765 const struct ieee80211_regdomain *regd);
2766
2767 /**
2768 * freq_reg_info - get regulatory information for the given frequency
2769 * @wiphy: the wiphy for which we want to process this rule for
2770 * @center_freq: Frequency in KHz for which we want regulatory information for
2771 * @desired_bw_khz: the desired max bandwidth you want to use per
2772 * channel. Note that this is still 20 MHz if you want to use HT40
2773 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2774 * If set to 0 we'll assume you want the standard 20 MHz.
2775 * @reg_rule: the regulatory rule which we have for this frequency
2776 *
2777 * Use this function to get the regulatory rule for a specific frequency on
2778 * a given wireless device. If the device has a specific regulatory domain
2779 * it wants to follow we respect that unless a country IE has been received
2780 * and processed already.
2781 *
2782 * Returns 0 if it was able to find a valid regulatory rule which does
2783 * apply to the given center_freq otherwise it returns non-zero. It will
2784 * also return -ERANGE if we determine the given center_freq does not even have
2785 * a regulatory rule for a frequency range in the center_freq's band. See
2786 * freq_in_rule_band() for our current definition of a band -- this is purely
2787 * subjective and right now its 802.11 specific.
2788 */
2789 extern int freq_reg_info(struct wiphy *wiphy,
2790 u32 center_freq,
2791 u32 desired_bw_khz,
2792 const struct ieee80211_reg_rule **reg_rule);
2793
2794 /*
2795 * callbacks for asynchronous cfg80211 methods, notification
2796 * functions and BSS handling helpers
2797 */
2798
2799 /**
2800 * cfg80211_scan_done - notify that scan finished
2801 *
2802 * @request: the corresponding scan request
2803 * @aborted: set to true if the scan was aborted for any reason,
2804 * userspace will be notified of that
2805 */
2806 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
2807
2808 /**
2809 * cfg80211_sched_scan_results - notify that new scan results are available
2810 *
2811 * @wiphy: the wiphy which got scheduled scan results
2812 */
2813 void cfg80211_sched_scan_results(struct wiphy *wiphy);
2814
2815 /**
2816 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2817 *
2818 * @wiphy: the wiphy on which the scheduled scan stopped
2819 *
2820 * The driver can call this function to inform cfg80211 that the
2821 * scheduled scan had to be stopped, for whatever reason. The driver
2822 * is then called back via the sched_scan_stop operation when done.
2823 */
2824 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
2825
2826 /**
2827 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2828 *
2829 * @wiphy: the wiphy reporting the BSS
2830 * @channel: The channel the frame was received on
2831 * @mgmt: the management frame (probe response or beacon)
2832 * @len: length of the management frame
2833 * @signal: the signal strength, type depends on the wiphy's signal_type
2834 * @gfp: context flags
2835 *
2836 * This informs cfg80211 that BSS information was found and
2837 * the BSS should be updated/added.
2838 *
2839 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2840 */
2841 struct cfg80211_bss * __must_check
2842 cfg80211_inform_bss_frame(struct wiphy *wiphy,
2843 struct ieee80211_channel *channel,
2844 struct ieee80211_mgmt *mgmt, size_t len,
2845 s32 signal, gfp_t gfp);
2846
2847 /**
2848 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2849 *
2850 * @wiphy: the wiphy reporting the BSS
2851 * @channel: The channel the frame was received on
2852 * @bssid: the BSSID of the BSS
2853 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
2854 * @capability: the capability field sent by the peer
2855 * @beacon_interval: the beacon interval announced by the peer
2856 * @ie: additional IEs sent by the peer
2857 * @ielen: length of the additional IEs
2858 * @signal: the signal strength, type depends on the wiphy's signal_type
2859 * @gfp: context flags
2860 *
2861 * This informs cfg80211 that BSS information was found and
2862 * the BSS should be updated/added.
2863 *
2864 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2865 */
2866 struct cfg80211_bss * __must_check
2867 cfg80211_inform_bss(struct wiphy *wiphy,
2868 struct ieee80211_channel *channel,
2869 const u8 *bssid, u64 tsf, u16 capability,
2870 u16 beacon_interval, const u8 *ie, size_t ielen,
2871 s32 signal, gfp_t gfp);
2872
2873 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
2874 struct ieee80211_channel *channel,
2875 const u8 *bssid,
2876 const u8 *ssid, size_t ssid_len,
2877 u16 capa_mask, u16 capa_val);
2878 static inline struct cfg80211_bss *
2879 cfg80211_get_ibss(struct wiphy *wiphy,
2880 struct ieee80211_channel *channel,
2881 const u8 *ssid, size_t ssid_len)
2882 {
2883 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
2884 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
2885 }
2886
2887 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
2888 struct ieee80211_channel *channel,
2889 const u8 *meshid, size_t meshidlen,
2890 const u8 *meshcfg);
2891 /**
2892 * cfg80211_ref_bss - reference BSS struct
2893 * @bss: the BSS struct to reference
2894 *
2895 * Increments the refcount of the given BSS struct.
2896 */
2897 void cfg80211_ref_bss(struct cfg80211_bss *bss);
2898
2899 /**
2900 * cfg80211_put_bss - unref BSS struct
2901 * @bss: the BSS struct
2902 *
2903 * Decrements the refcount of the given BSS struct.
2904 */
2905 void cfg80211_put_bss(struct cfg80211_bss *bss);
2906
2907 /**
2908 * cfg80211_unlink_bss - unlink BSS from internal data structures
2909 * @wiphy: the wiphy
2910 * @bss: the bss to remove
2911 *
2912 * This function removes the given BSS from the internal data structures
2913 * thereby making it no longer show up in scan results etc. Use this
2914 * function when you detect a BSS is gone. Normally BSSes will also time
2915 * out, so it is not necessary to use this function at all.
2916 */
2917 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
2918
2919 /**
2920 * cfg80211_send_rx_auth - notification of processed authentication
2921 * @dev: network device
2922 * @buf: authentication frame (header + body)
2923 * @len: length of the frame data
2924 *
2925 * This function is called whenever an authentication has been processed in
2926 * station mode. The driver is required to call either this function or
2927 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2928 * call. This function may sleep.
2929 */
2930 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2931
2932 /**
2933 * cfg80211_send_auth_timeout - notification of timed out authentication
2934 * @dev: network device
2935 * @addr: The MAC address of the device with which the authentication timed out
2936 *
2937 * This function may sleep.
2938 */
2939 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2940
2941 /**
2942 * cfg80211_send_rx_assoc - notification of processed association
2943 * @dev: network device
2944 * @bss: the BSS struct association was requested for, the struct reference
2945 * is owned by cfg80211 after this call
2946 * @buf: (re)association response frame (header + body)
2947 * @len: length of the frame data
2948 *
2949 * This function is called whenever a (re)association response has been
2950 * processed in station mode. The driver is required to call either this
2951 * function or cfg80211_send_assoc_timeout() to indicate the result of
2952 * cfg80211_ops::assoc() call. This function may sleep.
2953 */
2954 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
2955 const u8 *buf, size_t len);
2956
2957 /**
2958 * cfg80211_send_assoc_timeout - notification of timed out association
2959 * @dev: network device
2960 * @addr: The MAC address of the device with which the association timed out
2961 *
2962 * This function may sleep.
2963 */
2964 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2965
2966 /**
2967 * cfg80211_send_deauth - notification of processed deauthentication
2968 * @dev: network device
2969 * @buf: deauthentication frame (header + body)
2970 * @len: length of the frame data
2971 *
2972 * This function is called whenever deauthentication has been processed in
2973 * station mode. This includes both received deauthentication frames and
2974 * locally generated ones. This function may sleep.
2975 */
2976 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2977
2978 /**
2979 * __cfg80211_send_deauth - notification of processed deauthentication
2980 * @dev: network device
2981 * @buf: deauthentication frame (header + body)
2982 * @len: length of the frame data
2983 *
2984 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2985 */
2986 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2987
2988 /**
2989 * cfg80211_send_disassoc - notification of processed disassociation
2990 * @dev: network device
2991 * @buf: disassociation response frame (header + body)
2992 * @len: length of the frame data
2993 *
2994 * This function is called whenever disassociation has been processed in
2995 * station mode. This includes both received disassociation frames and locally
2996 * generated ones. This function may sleep.
2997 */
2998 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
2999
3000 /**
3001 * __cfg80211_send_disassoc - notification of processed disassociation
3002 * @dev: network device
3003 * @buf: disassociation response frame (header + body)
3004 * @len: length of the frame data
3005 *
3006 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
3007 */
3008 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
3009 size_t len);
3010
3011 /**
3012 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
3013 * @dev: network device
3014 * @buf: deauthentication frame (header + body)
3015 * @len: length of the frame data
3016 *
3017 * This function is called whenever a received Deauthentication frame has been
3018 * dropped in station mode because of MFP being used but the Deauthentication
3019 * frame was not protected. This function may sleep.
3020 */
3021 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
3022 size_t len);
3023
3024 /**
3025 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
3026 * @dev: network device
3027 * @buf: disassociation frame (header + body)
3028 * @len: length of the frame data
3029 *
3030 * This function is called whenever a received Disassociation frame has been
3031 * dropped in station mode because of MFP being used but the Disassociation
3032 * frame was not protected. This function may sleep.
3033 */
3034 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
3035 size_t len);
3036
3037 /**
3038 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3039 * @dev: network device
3040 * @addr: The source MAC address of the frame
3041 * @key_type: The key type that the received frame used
3042 * @key_id: Key identifier (0..3). Can be -1 if missing.
3043 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3044 * @gfp: allocation flags
3045 *
3046 * This function is called whenever the local MAC detects a MIC failure in a
3047 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3048 * primitive.
3049 */
3050 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
3051 enum nl80211_key_type key_type, int key_id,
3052 const u8 *tsc, gfp_t gfp);
3053
3054 /**
3055 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3056 *
3057 * @dev: network device
3058 * @bssid: the BSSID of the IBSS joined
3059 * @gfp: allocation flags
3060 *
3061 * This function notifies cfg80211 that the device joined an IBSS or
3062 * switched to a different BSSID. Before this function can be called,
3063 * either a beacon has to have been received from the IBSS, or one of
3064 * the cfg80211_inform_bss{,_frame} functions must have been called
3065 * with the locally generated beacon -- this guarantees that there is
3066 * always a scan result for this IBSS. cfg80211 will handle the rest.
3067 */
3068 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
3069
3070 /**
3071 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3072 *
3073 * @dev: network device
3074 * @macaddr: the MAC address of the new candidate
3075 * @ie: information elements advertised by the peer candidate
3076 * @ie_len: lenght of the information elements buffer
3077 * @gfp: allocation flags
3078 *
3079 * This function notifies cfg80211 that the mesh peer candidate has been
3080 * detected, most likely via a beacon or, less likely, via a probe response.
3081 * cfg80211 then sends a notification to userspace.
3082 */
3083 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
3084 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
3085
3086 /**
3087 * DOC: RFkill integration
3088 *
3089 * RFkill integration in cfg80211 is almost invisible to drivers,
3090 * as cfg80211 automatically registers an rfkill instance for each
3091 * wireless device it knows about. Soft kill is also translated
3092 * into disconnecting and turning all interfaces off, drivers are
3093 * expected to turn off the device when all interfaces are down.
3094 *
3095 * However, devices may have a hard RFkill line, in which case they
3096 * also need to interact with the rfkill subsystem, via cfg80211.
3097 * They can do this with a few helper functions documented here.
3098 */
3099
3100 /**
3101 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3102 * @wiphy: the wiphy
3103 * @blocked: block status
3104 */
3105 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
3106
3107 /**
3108 * wiphy_rfkill_start_polling - start polling rfkill
3109 * @wiphy: the wiphy
3110 */
3111 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
3112
3113 /**
3114 * wiphy_rfkill_stop_polling - stop polling rfkill
3115 * @wiphy: the wiphy
3116 */
3117 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
3118
3119 #ifdef CONFIG_NL80211_TESTMODE
3120 /**
3121 * DOC: Test mode
3122 *
3123 * Test mode is a set of utility functions to allow drivers to
3124 * interact with driver-specific tools to aid, for instance,
3125 * factory programming.
3126 *
3127 * This chapter describes how drivers interact with it, for more
3128 * information see the nl80211 book's chapter on it.
3129 */
3130
3131 /**
3132 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3133 * @wiphy: the wiphy
3134 * @approxlen: an upper bound of the length of the data that will
3135 * be put into the skb
3136 *
3137 * This function allocates and pre-fills an skb for a reply to
3138 * the testmode command. Since it is intended for a reply, calling
3139 * it outside of the @testmode_cmd operation is invalid.
3140 *
3141 * The returned skb (or %NULL if any errors happen) is pre-filled
3142 * with the wiphy index and set up in a way that any data that is
3143 * put into the skb (with skb_put(), nla_put() or similar) will end
3144 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
3145 * needs to be done with the skb is adding data for the corresponding
3146 * userspace tool which can then read that data out of the testdata
3147 * attribute. You must not modify the skb in any other way.
3148 *
3149 * When done, call cfg80211_testmode_reply() with the skb and return
3150 * its error code as the result of the @testmode_cmd operation.
3151 */
3152 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3153 int approxlen);
3154
3155 /**
3156 * cfg80211_testmode_reply - send the reply skb
3157 * @skb: The skb, must have been allocated with
3158 * cfg80211_testmode_alloc_reply_skb()
3159 *
3160 * Returns an error code or 0 on success, since calling this
3161 * function will usually be the last thing before returning
3162 * from the @testmode_cmd you should return the error code.
3163 * Note that this function consumes the skb regardless of the
3164 * return value.
3165 */
3166 int cfg80211_testmode_reply(struct sk_buff *skb);
3167
3168 /**
3169 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3170 * @wiphy: the wiphy
3171 * @approxlen: an upper bound of the length of the data that will
3172 * be put into the skb
3173 * @gfp: allocation flags
3174 *
3175 * This function allocates and pre-fills an skb for an event on the
3176 * testmode multicast group.
3177 *
3178 * The returned skb (or %NULL if any errors happen) is set up in the
3179 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3180 * for an event. As there, you should simply add data to it that will
3181 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3182 * not modify the skb in any other way.
3183 *
3184 * When done filling the skb, call cfg80211_testmode_event() with the
3185 * skb to send the event.
3186 */
3187 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3188 int approxlen, gfp_t gfp);
3189
3190 /**
3191 * cfg80211_testmode_event - send the event
3192 * @skb: The skb, must have been allocated with
3193 * cfg80211_testmode_alloc_event_skb()
3194 * @gfp: allocation flags
3195 *
3196 * This function sends the given @skb, which must have been allocated
3197 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3198 * consumes it.
3199 */
3200 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
3201
3202 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3203 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3204 #else
3205 #define CFG80211_TESTMODE_CMD(cmd)
3206 #define CFG80211_TESTMODE_DUMP(cmd)
3207 #endif
3208
3209 /**
3210 * cfg80211_connect_result - notify cfg80211 of connection result
3211 *
3212 * @dev: network device
3213 * @bssid: the BSSID of the AP
3214 * @req_ie: association request IEs (maybe be %NULL)
3215 * @req_ie_len: association request IEs length
3216 * @resp_ie: association response IEs (may be %NULL)
3217 * @resp_ie_len: assoc response IEs length
3218 * @status: status code, 0 for successful connection, use
3219 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3220 * the real status code for failures.
3221 * @gfp: allocation flags
3222 *
3223 * It should be called by the underlying driver whenever connect() has
3224 * succeeded.
3225 */
3226 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
3227 const u8 *req_ie, size_t req_ie_len,
3228 const u8 *resp_ie, size_t resp_ie_len,
3229 u16 status, gfp_t gfp);
3230
3231 /**
3232 * cfg80211_roamed - notify cfg80211 of roaming
3233 *
3234 * @dev: network device
3235 * @channel: the channel of the new AP
3236 * @bssid: the BSSID of the new AP
3237 * @req_ie: association request IEs (maybe be %NULL)
3238 * @req_ie_len: association request IEs length
3239 * @resp_ie: association response IEs (may be %NULL)
3240 * @resp_ie_len: assoc response IEs length
3241 * @gfp: allocation flags
3242 *
3243 * It should be called by the underlying driver whenever it roamed
3244 * from one AP to another while connected.
3245 */
3246 void cfg80211_roamed(struct net_device *dev,
3247 struct ieee80211_channel *channel,
3248 const u8 *bssid,
3249 const u8 *req_ie, size_t req_ie_len,
3250 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3251
3252 /**
3253 * cfg80211_roamed_bss - notify cfg80211 of roaming
3254 *
3255 * @dev: network device
3256 * @bss: entry of bss to which STA got roamed
3257 * @req_ie: association request IEs (maybe be %NULL)
3258 * @req_ie_len: association request IEs length
3259 * @resp_ie: association response IEs (may be %NULL)
3260 * @resp_ie_len: assoc response IEs length
3261 * @gfp: allocation flags
3262 *
3263 * This is just a wrapper to notify cfg80211 of roaming event with driver
3264 * passing bss to avoid a race in timeout of the bss entry. It should be
3265 * called by the underlying driver whenever it roamed from one AP to another
3266 * while connected. Drivers which have roaming implemented in firmware
3267 * may use this function to avoid a race in bss entry timeout where the bss
3268 * entry of the new AP is seen in the driver, but gets timed out by the time
3269 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3270 * rdev->event_work. In case of any failures, the reference is released
3271 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3272 * it will be released while diconneting from the current bss.
3273 */
3274 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
3275 const u8 *req_ie, size_t req_ie_len,
3276 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3277
3278 /**
3279 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3280 *
3281 * @dev: network device
3282 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3283 * @ie_len: length of IEs
3284 * @reason: reason code for the disconnection, set it to 0 if unknown
3285 * @gfp: allocation flags
3286 *
3287 * After it calls this function, the driver should enter an idle state
3288 * and not try to connect to any AP any more.
3289 */
3290 void cfg80211_disconnected(struct net_device *dev, u16 reason,
3291 u8 *ie, size_t ie_len, gfp_t gfp);
3292
3293 /**
3294 * cfg80211_ready_on_channel - notification of remain_on_channel start
3295 * @wdev: wireless device
3296 * @cookie: the request cookie
3297 * @chan: The current channel (from remain_on_channel request)
3298 * @channel_type: Channel type
3299 * @duration: Duration in milliseconds that the driver intents to remain on the
3300 * channel
3301 * @gfp: allocation flags
3302 */
3303 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
3304 struct ieee80211_channel *chan,
3305 enum nl80211_channel_type channel_type,
3306 unsigned int duration, gfp_t gfp);
3307
3308 /**
3309 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3310 * @wdev: wireless device
3311 * @cookie: the request cookie
3312 * @chan: The current channel (from remain_on_channel request)
3313 * @channel_type: Channel type
3314 * @gfp: allocation flags
3315 */
3316 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
3317 struct ieee80211_channel *chan,
3318 enum nl80211_channel_type channel_type,
3319 gfp_t gfp);
3320
3321
3322 /**
3323 * cfg80211_new_sta - notify userspace about station
3324 *
3325 * @dev: the netdev
3326 * @mac_addr: the station's address
3327 * @sinfo: the station information
3328 * @gfp: allocation flags
3329 */
3330 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
3331 struct station_info *sinfo, gfp_t gfp);
3332
3333 /**
3334 * cfg80211_del_sta - notify userspace about deletion of a station
3335 *
3336 * @dev: the netdev
3337 * @mac_addr: the station's address
3338 * @gfp: allocation flags
3339 */
3340 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
3341
3342 /**
3343 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3344 * @wdev: wireless device receiving the frame
3345 * @freq: Frequency on which the frame was received in MHz
3346 * @sig_dbm: signal strength in mBm, or 0 if unknown
3347 * @buf: Management frame (header + body)
3348 * @len: length of the frame data
3349 * @gfp: context flags
3350 *
3351 * Returns %true if a user space application has registered for this frame.
3352 * For action frames, that makes it responsible for rejecting unrecognized
3353 * action frames; %false otherwise, in which case for action frames the
3354 * driver is responsible for rejecting the frame.
3355 *
3356 * This function is called whenever an Action frame is received for a station
3357 * mode interface, but is not processed in kernel.
3358 */
3359 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
3360 const u8 *buf, size_t len, gfp_t gfp);
3361
3362 /**
3363 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3364 * @wdev: wireless device receiving the frame
3365 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3366 * @buf: Management frame (header + body)
3367 * @len: length of the frame data
3368 * @ack: Whether frame was acknowledged
3369 * @gfp: context flags
3370 *
3371 * This function is called whenever a management frame was requested to be
3372 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3373 * transmission attempt.
3374 */
3375 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
3376 const u8 *buf, size_t len, bool ack, gfp_t gfp);
3377
3378
3379 /**
3380 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3381 * @dev: network device
3382 * @rssi_event: the triggered RSSI event
3383 * @gfp: context flags
3384 *
3385 * This function is called when a configured connection quality monitoring
3386 * rssi threshold reached event occurs.
3387 */
3388 void cfg80211_cqm_rssi_notify(struct net_device *dev,
3389 enum nl80211_cqm_rssi_threshold_event rssi_event,
3390 gfp_t gfp);
3391
3392 /**
3393 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3394 * @dev: network device
3395 * @peer: peer's MAC address
3396 * @num_packets: how many packets were lost -- should be a fixed threshold
3397 * but probably no less than maybe 50, or maybe a throughput dependent
3398 * threshold (to account for temporary interference)
3399 * @gfp: context flags
3400 */
3401 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
3402 const u8 *peer, u32 num_packets, gfp_t gfp);
3403
3404 /**
3405 * cfg80211_cqm_txe_notify - TX error rate event
3406 * @dev: network device
3407 * @peer: peer's MAC address
3408 * @num_packets: how many packets were lost
3409 * @rate: % of packets which failed transmission
3410 * @intvl: interval (in s) over which the TX failure threshold was breached.
3411 * @gfp: context flags
3412 *
3413 * Notify userspace when configured % TX failures over number of packets in a
3414 * given interval is exceeded.
3415 */
3416 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
3417 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
3418
3419 /**
3420 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3421 * @dev: network device
3422 * @bssid: BSSID of AP (to avoid races)
3423 * @replay_ctr: new replay counter
3424 * @gfp: allocation flags
3425 */
3426 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
3427 const u8 *replay_ctr, gfp_t gfp);
3428
3429 /**
3430 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3431 * @dev: network device
3432 * @index: candidate index (the smaller the index, the higher the priority)
3433 * @bssid: BSSID of AP
3434 * @preauth: Whether AP advertises support for RSN pre-authentication
3435 * @gfp: allocation flags
3436 */
3437 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
3438 const u8 *bssid, bool preauth, gfp_t gfp);
3439
3440 /**
3441 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3442 * @dev: The device the frame matched to
3443 * @addr: the transmitter address
3444 * @gfp: context flags
3445 *
3446 * This function is used in AP mode (only!) to inform userspace that
3447 * a spurious class 3 frame was received, to be able to deauth the
3448 * sender.
3449 * Returns %true if the frame was passed to userspace (or this failed
3450 * for a reason other than not having a subscription.)
3451 */
3452 bool cfg80211_rx_spurious_frame(struct net_device *dev,
3453 const u8 *addr, gfp_t gfp);
3454
3455 /**
3456 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3457 * @dev: The device the frame matched to
3458 * @addr: the transmitter address
3459 * @gfp: context flags
3460 *
3461 * This function is used in AP mode (only!) to inform userspace that
3462 * an associated station sent a 4addr frame but that wasn't expected.
3463 * It is allowed and desirable to send this event only once for each
3464 * station to avoid event flooding.
3465 * Returns %true if the frame was passed to userspace (or this failed
3466 * for a reason other than not having a subscription.)
3467 */
3468 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
3469 const u8 *addr, gfp_t gfp);
3470
3471 /**
3472 * cfg80211_probe_status - notify userspace about probe status
3473 * @dev: the device the probe was sent on
3474 * @addr: the address of the peer
3475 * @cookie: the cookie filled in @probe_client previously
3476 * @acked: indicates whether probe was acked or not
3477 * @gfp: allocation flags
3478 */
3479 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
3480 u64 cookie, bool acked, gfp_t gfp);
3481
3482 /**
3483 * cfg80211_report_obss_beacon - report beacon from other APs
3484 * @wiphy: The wiphy that received the beacon
3485 * @frame: the frame
3486 * @len: length of the frame
3487 * @freq: frequency the frame was received on
3488 * @sig_dbm: signal strength in mBm, or 0 if unknown
3489 * @gfp: allocation flags
3490 *
3491 * Use this function to report to userspace when a beacon was
3492 * received. It is not useful to call this when there is no
3493 * netdev that is in AP/GO mode.
3494 */
3495 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
3496 const u8 *frame, size_t len,
3497 int freq, int sig_dbm, gfp_t gfp);
3498
3499 /**
3500 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3501 * @wiphy: the wiphy
3502 * @chan: main channel
3503 * @channel_type: HT mode
3504 *
3505 * This function returns true if there is no secondary channel or the secondary
3506 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3507 */
3508 bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
3509 struct ieee80211_channel *chan,
3510 enum nl80211_channel_type channel_type);
3511
3512 /*
3513 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3514 * @dev: the device which switched channels
3515 * @freq: new channel frequency (in MHz)
3516 * @type: channel type
3517 *
3518 * Acquires wdev_lock, so must only be called from sleepable driver context!
3519 */
3520 void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
3521 enum nl80211_channel_type type);
3522
3523 /*
3524 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3525 * @rate: given rate_info to calculate bitrate from
3526 *
3527 * return 0 if MCS index >= 32
3528 */
3529 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
3530
3531 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3532
3533 /* wiphy_printk helpers, similar to dev_printk */
3534
3535 #define wiphy_printk(level, wiphy, format, args...) \
3536 dev_printk(level, &(wiphy)->dev, format, ##args)
3537 #define wiphy_emerg(wiphy, format, args...) \
3538 dev_emerg(&(wiphy)->dev, format, ##args)
3539 #define wiphy_alert(wiphy, format, args...) \
3540 dev_alert(&(wiphy)->dev, format, ##args)
3541 #define wiphy_crit(wiphy, format, args...) \
3542 dev_crit(&(wiphy)->dev, format, ##args)
3543 #define wiphy_err(wiphy, format, args...) \
3544 dev_err(&(wiphy)->dev, format, ##args)
3545 #define wiphy_warn(wiphy, format, args...) \
3546 dev_warn(&(wiphy)->dev, format, ##args)
3547 #define wiphy_notice(wiphy, format, args...) \
3548 dev_notice(&(wiphy)->dev, format, ##args)
3549 #define wiphy_info(wiphy, format, args...) \
3550 dev_info(&(wiphy)->dev, format, ##args)
3551
3552 #define wiphy_debug(wiphy, format, args...) \
3553 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3554
3555 #define wiphy_dbg(wiphy, format, args...) \
3556 dev_dbg(&(wiphy)->dev, format, ##args)
3557
3558 #if defined(VERBOSE_DEBUG)
3559 #define wiphy_vdbg wiphy_dbg
3560 #else
3561 #define wiphy_vdbg(wiphy, format, args...) \
3562 ({ \
3563 if (0) \
3564 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3565 0; \
3566 })
3567 #endif
3568
3569 /*
3570 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3571 * of using a WARN/WARN_ON to get the message out, including the
3572 * file/line information and a backtrace.
3573 */
3574 #define wiphy_WARN(wiphy, format, args...) \
3575 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3576
3577 #endif /* __NET_CFG80211_H */