1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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.
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>
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.
34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
40 * DOC: Device registration
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
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.
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.
64 * wireless hardware capability structures
68 * enum ieee80211_band - supported frequency bands
70 * The bands are assigned this way because the supported
71 * bitrates differ in these bands.
73 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
74 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
75 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
76 * @IEEE80211_NUM_BANDS: number of defined bands
79 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
80 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
81 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
88 * enum ieee80211_channel_flags - channel flags
90 * Channel flags set by the regulatory control code.
92 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
93 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
95 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
96 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
97 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
99 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
101 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
103 enum ieee80211_channel_flags {
104 IEEE80211_CHAN_DISABLED = 1<<0,
105 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
106 IEEE80211_CHAN_NO_IBSS = 1<<2,
107 IEEE80211_CHAN_RADAR = 1<<3,
108 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
109 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
110 IEEE80211_CHAN_NO_OFDM = 1<<6,
113 #define IEEE80211_CHAN_NO_HT40 \
114 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
117 * struct ieee80211_channel - channel definition
119 * This structure describes a single channel for use
122 * @center_freq: center frequency in MHz
123 * @hw_value: hardware-specific value for the channel
124 * @flags: channel flags from &enum ieee80211_channel_flags.
125 * @orig_flags: channel flags at registration time, used by regulatory
126 * code to support devices with additional restrictions
127 * @band: band this channel belongs to.
128 * @max_antenna_gain: maximum antenna gain in dBi
129 * @max_power: maximum transmission power (in dBm)
130 * @max_reg_power: maximum regulatory transmission power (in dBm)
131 * @beacon_found: helper to regulatory code to indicate when a beacon
132 * has been found on this channel. Use regulatory_hint_found_beacon()
133 * to enable this, this is useful only on 5 GHz band.
134 * @orig_mag: internal use
135 * @orig_mpwr: internal use
137 struct ieee80211_channel {
138 enum ieee80211_band band;
142 int max_antenna_gain;
147 int orig_mag, orig_mpwr;
151 * enum ieee80211_rate_flags - rate flags
153 * Hardware/specification flags for rates. These are structured
154 * in a way that allows using the same bitrate structure for
155 * different bands/PHY modes.
157 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
158 * preamble on this bitrate; only relevant in 2.4GHz band and
160 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
161 * when used with 802.11a (on the 5 GHz band); filled by the
162 * core code when registering the wiphy.
163 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
164 * when used with 802.11b (on the 2.4 GHz band); filled by the
165 * core code when registering the wiphy.
166 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
167 * when used with 802.11g (on the 2.4 GHz band); filled by the
168 * core code when registering the wiphy.
169 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
171 enum ieee80211_rate_flags {
172 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
173 IEEE80211_RATE_MANDATORY_A = 1<<1,
174 IEEE80211_RATE_MANDATORY_B = 1<<2,
175 IEEE80211_RATE_MANDATORY_G = 1<<3,
176 IEEE80211_RATE_ERP_G = 1<<4,
180 * struct ieee80211_rate - bitrate definition
182 * This structure describes a bitrate that an 802.11 PHY can
183 * operate with. The two values @hw_value and @hw_value_short
184 * are only for driver use when pointers to this structure are
187 * @flags: rate-specific flags
188 * @bitrate: bitrate in units of 100 Kbps
189 * @hw_value: driver/hardware value for this rate
190 * @hw_value_short: driver/hardware value for this rate when
191 * short preamble is used
193 struct ieee80211_rate {
196 u16 hw_value, hw_value_short;
200 * struct ieee80211_sta_ht_cap - STA's HT capabilities
202 * This structure describes most essential parameters needed
203 * to describe 802.11n HT capabilities for an STA.
205 * @ht_supported: is HT supported by the STA
206 * @cap: HT capabilities map as described in 802.11n spec
207 * @ampdu_factor: Maximum A-MPDU length factor
208 * @ampdu_density: Minimum A-MPDU spacing
209 * @mcs: Supported MCS rates
211 struct ieee80211_sta_ht_cap {
212 u16 cap; /* use IEEE80211_HT_CAP_ */
216 struct ieee80211_mcs_info mcs;
220 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
222 * This structure describes most essential parameters needed
223 * to describe 802.11ac VHT capabilities for an STA.
225 * @vht_supported: is VHT supported by the STA
226 * @cap: VHT capabilities map as described in 802.11ac spec
227 * @vht_mcs: Supported VHT MCS rates
229 struct ieee80211_sta_vht_cap {
231 u32 cap; /* use IEEE80211_VHT_CAP_ */
232 struct ieee80211_vht_mcs_info vht_mcs;
236 * struct ieee80211_supported_band - frequency band definition
238 * This structure describes a frequency band a wiphy
239 * is able to operate in.
241 * @channels: Array of channels the hardware can operate in
243 * @band: the band this structure represents
244 * @n_channels: Number of channels in @channels
245 * @bitrates: Array of bitrates the hardware can operate with
246 * in this band. Must be sorted to give a valid "supported
247 * rates" IE, i.e. CCK rates first, then OFDM.
248 * @n_bitrates: Number of bitrates in @bitrates
249 * @ht_cap: HT capabilities in this band
250 * @vht_cap: VHT capabilities in this band
252 struct ieee80211_supported_band {
253 struct ieee80211_channel *channels;
254 struct ieee80211_rate *bitrates;
255 enum ieee80211_band band;
258 struct ieee80211_sta_ht_cap ht_cap;
259 struct ieee80211_sta_vht_cap vht_cap;
263 * Wireless hardware/device configuration structures and methods
267 * DOC: Actions and configuration
269 * Each wireless device and each virtual interface offer a set of configuration
270 * operations and other actions that are invoked by userspace. Each of these
271 * actions is described in the operations structure, and the parameters these
272 * operations use are described separately.
274 * Additionally, some operations are asynchronous and expect to get status
275 * information via some functions that drivers need to call.
277 * Scanning and BSS list handling with its associated functionality is described
278 * in a separate chapter.
282 * struct vif_params - describes virtual interface parameters
283 * @use_4addr: use 4-address frames
284 * @macaddr: address to use for this virtual interface. This will only
285 * be used for non-netdevice interfaces. If this parameter is set
286 * to zero address the driver may determine the address as needed.
290 u8 macaddr[ETH_ALEN];
294 * struct key_params - key information
296 * Information about a key
299 * @key_len: length of key material
300 * @cipher: cipher suite selector
301 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
302 * with the get_key() callback, must be in little endian,
303 * length given by @seq_len.
304 * @seq_len: length of @seq.
315 * struct cfg80211_chan_def - channel definition
316 * @chan: the (control) channel
317 * @width: channel width
318 * @center_freq1: center frequency of first segment
319 * @center_freq2: center frequency of second segment
320 * (only with 80+80 MHz)
322 struct cfg80211_chan_def {
323 struct ieee80211_channel *chan;
324 enum nl80211_chan_width width;
330 * cfg80211_get_chandef_type - return old channel type from chandef
331 * @chandef: the channel definition
333 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
334 * chandef, which must have a bandwidth allowing this conversion.
336 static inline enum nl80211_channel_type
337 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
339 switch (chandef->width) {
340 case NL80211_CHAN_WIDTH_20_NOHT:
341 return NL80211_CHAN_NO_HT;
342 case NL80211_CHAN_WIDTH_20:
343 return NL80211_CHAN_HT20;
344 case NL80211_CHAN_WIDTH_40:
345 if (chandef->center_freq1 > chandef->chan->center_freq)
346 return NL80211_CHAN_HT40PLUS;
347 return NL80211_CHAN_HT40MINUS;
350 return NL80211_CHAN_NO_HT;
355 * cfg80211_chandef_create - create channel definition using channel type
356 * @chandef: the channel definition struct to fill
357 * @channel: the control channel
358 * @chantype: the channel type
360 * Given a channel type, create a channel definition.
362 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
363 struct ieee80211_channel *channel,
364 enum nl80211_channel_type chantype);
367 * cfg80211_chandef_identical - check if two channel definitions are identical
368 * @chandef1: first channel definition
369 * @chandef2: second channel definition
371 * Return: %true if the channels defined by the channel definitions are
372 * identical, %false otherwise.
375 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
376 const struct cfg80211_chan_def *chandef2)
378 return (chandef1->chan == chandef2->chan &&
379 chandef1->width == chandef2->width &&
380 chandef1->center_freq1 == chandef2->center_freq1 &&
381 chandef1->center_freq2 == chandef2->center_freq2);
385 * cfg80211_chandef_compatible - check if two channel definitions are compatible
386 * @chandef1: first channel definition
387 * @chandef2: second channel definition
389 * Return: %NULL if the given channel definitions are incompatible,
390 * chandef1 or chandef2 otherwise.
392 const struct cfg80211_chan_def *
393 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
394 const struct cfg80211_chan_def *chandef2);
397 * cfg80211_chandef_valid - check if a channel definition is valid
398 * @chandef: the channel definition to check
399 * Return: %true if the channel definition is valid. %false otherwise.
401 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
404 * cfg80211_chandef_usable - check if secondary channels can be used
405 * @wiphy: the wiphy to validate against
406 * @chandef: the channel definition to check
407 * @prohibited_flags: the regulatory channel flags that must not be set
408 * Return: %true if secondary channels are usable. %false otherwise.
410 bool cfg80211_chandef_usable(struct wiphy *wiphy,
411 const struct cfg80211_chan_def *chandef,
412 u32 prohibited_flags);
415 * enum survey_info_flags - survey information flags
417 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
418 * @SURVEY_INFO_IN_USE: channel is currently being used
419 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
420 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
421 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
422 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
423 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
425 * Used by the driver to indicate which info in &struct survey_info
426 * it has filled in during the get_survey().
428 enum survey_info_flags {
429 SURVEY_INFO_NOISE_DBM = 1<<0,
430 SURVEY_INFO_IN_USE = 1<<1,
431 SURVEY_INFO_CHANNEL_TIME = 1<<2,
432 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
433 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
434 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
435 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
439 * struct survey_info - channel survey response
441 * @channel: the channel this survey record reports, mandatory
442 * @filled: bitflag of flags from &enum survey_info_flags
443 * @noise: channel noise in dBm. This and all following fields are
445 * @channel_time: amount of time in ms the radio spent on the channel
446 * @channel_time_busy: amount of time the primary channel was sensed busy
447 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
448 * @channel_time_rx: amount of time the radio spent receiving data
449 * @channel_time_tx: amount of time the radio spent transmitting data
451 * Used by dump_survey() to report back per-channel survey information.
453 * This structure can later be expanded with things like
454 * channel duty cycle etc.
457 struct ieee80211_channel *channel;
459 u64 channel_time_busy;
460 u64 channel_time_ext_busy;
468 * struct cfg80211_crypto_settings - Crypto settings
469 * @wpa_versions: indicates which, if any, WPA versions are enabled
470 * (from enum nl80211_wpa_versions)
471 * @cipher_group: group key cipher suite (or 0 if unset)
472 * @n_ciphers_pairwise: number of AP supported unicast ciphers
473 * @ciphers_pairwise: unicast key cipher suites
474 * @n_akm_suites: number of AKM suites
475 * @akm_suites: AKM suites
476 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
477 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
478 * required to assume that the port is unauthorized until authorized by
479 * user space. Otherwise, port is marked authorized by default.
480 * @control_port_ethertype: the control port protocol that should be
481 * allowed through even on unauthorized ports
482 * @control_port_no_encrypt: TRUE to prevent encryption of control port
485 struct cfg80211_crypto_settings {
488 int n_ciphers_pairwise;
489 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
491 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
493 __be16 control_port_ethertype;
494 bool control_port_no_encrypt;
498 * struct cfg80211_beacon_data - beacon data
499 * @head: head portion of beacon (before TIM IE)
500 * or %NULL if not changed
501 * @tail: tail portion of beacon (after TIM IE)
502 * or %NULL if not changed
503 * @head_len: length of @head
504 * @tail_len: length of @tail
505 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
506 * @beacon_ies_len: length of beacon_ies in octets
507 * @proberesp_ies: extra information element(s) to add into Probe Response
509 * @proberesp_ies_len: length of proberesp_ies in octets
510 * @assocresp_ies: extra information element(s) to add into (Re)Association
511 * Response frames or %NULL
512 * @assocresp_ies_len: length of assocresp_ies in octets
513 * @probe_resp_len: length of probe response template (@probe_resp)
514 * @probe_resp: probe response template (AP mode only)
516 struct cfg80211_beacon_data {
517 const u8 *head, *tail;
518 const u8 *beacon_ies;
519 const u8 *proberesp_ies;
520 const u8 *assocresp_ies;
521 const u8 *probe_resp;
523 size_t head_len, tail_len;
524 size_t beacon_ies_len;
525 size_t proberesp_ies_len;
526 size_t assocresp_ies_len;
527 size_t probe_resp_len;
531 * struct cfg80211_ap_settings - AP configuration
533 * Used to configure an AP interface.
535 * @chandef: defines the channel to use
536 * @beacon: beacon data
537 * @beacon_interval: beacon interval
538 * @dtim_period: DTIM period
539 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
541 * @ssid_len: length of @ssid
542 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
543 * @crypto: crypto settings
544 * @privacy: the BSS uses privacy
545 * @auth_type: Authentication type (algorithm)
546 * @inactivity_timeout: time in seconds to determine station's inactivity.
547 * @p2p_ctwindow: P2P CT Window
548 * @p2p_opp_ps: P2P opportunistic PS
550 struct cfg80211_ap_settings {
551 struct cfg80211_chan_def chandef;
553 struct cfg80211_beacon_data beacon;
555 int beacon_interval, dtim_period;
558 enum nl80211_hidden_ssid hidden_ssid;
559 struct cfg80211_crypto_settings crypto;
561 enum nl80211_auth_type auth_type;
562 int inactivity_timeout;
568 * enum plink_action - actions to perform in mesh peers
570 * @PLINK_ACTION_INVALID: action 0 is reserved
571 * @PLINK_ACTION_OPEN: start mesh peer link establishment
572 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
575 PLINK_ACTION_INVALID,
581 * enum station_parameters_apply_mask - station parameter values to apply
582 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
584 * Not all station parameters have in-band "no change" signalling,
585 * for those that don't these flags will are used.
587 enum station_parameters_apply_mask {
588 STATION_PARAM_APPLY_UAPSD = BIT(0),
592 * struct station_parameters - station parameters
594 * Used to change and create a new station.
596 * @vlan: vlan interface station should belong to
597 * @supported_rates: supported rates in IEEE 802.11 format
598 * (or NULL for no change)
599 * @supported_rates_len: number of supported rates
600 * @sta_flags_mask: station flags that changed
601 * (bitmask of BIT(NL80211_STA_FLAG_...))
602 * @sta_flags_set: station flags values
603 * (bitmask of BIT(NL80211_STA_FLAG_...))
604 * @listen_interval: listen interval or -1 for no change
605 * @aid: AID or zero for no change
606 * @plink_action: plink action to take
607 * @plink_state: set the peer link state for a station
608 * @ht_capa: HT capabilities of station
609 * @vht_capa: VHT capabilities of station
610 * @uapsd_queues: bitmap of queues configured for uapsd. same format
611 * as the AC bitmap in the QoS info field
612 * @max_sp: max Service Period. same format as the MAX_SP in the
613 * QoS info field (but already shifted down)
614 * @sta_modify_mask: bitmap indicating which parameters changed
615 * (for those that don't have a natural "no change" value),
616 * see &enum station_parameters_apply_mask
617 * @local_pm: local link-specific mesh power save mode (no change when set
620 struct station_parameters {
622 struct net_device *vlan;
623 u32 sta_flags_mask, sta_flags_set;
627 u8 supported_rates_len;
630 struct ieee80211_ht_cap *ht_capa;
631 struct ieee80211_vht_cap *vht_capa;
634 enum nl80211_mesh_power_mode local_pm;
638 * enum station_info_flags - station information flags
640 * Used by the driver to indicate which info in &struct station_info
641 * it has filled in during get_station() or dump_station().
643 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
644 * @STATION_INFO_RX_BYTES: @rx_bytes filled
645 * @STATION_INFO_TX_BYTES: @tx_bytes filled
646 * @STATION_INFO_LLID: @llid filled
647 * @STATION_INFO_PLID: @plid filled
648 * @STATION_INFO_PLINK_STATE: @plink_state filled
649 * @STATION_INFO_SIGNAL: @signal filled
650 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
651 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
652 * @STATION_INFO_RX_PACKETS: @rx_packets filled
653 * @STATION_INFO_TX_PACKETS: @tx_packets filled
654 * @STATION_INFO_TX_RETRIES: @tx_retries filled
655 * @STATION_INFO_TX_FAILED: @tx_failed filled
656 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
657 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
658 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
659 * @STATION_INFO_BSS_PARAM: @bss_param filled
660 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
661 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
662 * @STATION_INFO_STA_FLAGS: @sta_flags filled
663 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
664 * @STATION_INFO_T_OFFSET: @t_offset filled
665 * @STATION_INFO_LOCAL_PM: @local_pm filled
666 * @STATION_INFO_PEER_PM: @peer_pm filled
667 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
669 enum station_info_flags {
670 STATION_INFO_INACTIVE_TIME = 1<<0,
671 STATION_INFO_RX_BYTES = 1<<1,
672 STATION_INFO_TX_BYTES = 1<<2,
673 STATION_INFO_LLID = 1<<3,
674 STATION_INFO_PLID = 1<<4,
675 STATION_INFO_PLINK_STATE = 1<<5,
676 STATION_INFO_SIGNAL = 1<<6,
677 STATION_INFO_TX_BITRATE = 1<<7,
678 STATION_INFO_RX_PACKETS = 1<<8,
679 STATION_INFO_TX_PACKETS = 1<<9,
680 STATION_INFO_TX_RETRIES = 1<<10,
681 STATION_INFO_TX_FAILED = 1<<11,
682 STATION_INFO_RX_DROP_MISC = 1<<12,
683 STATION_INFO_SIGNAL_AVG = 1<<13,
684 STATION_INFO_RX_BITRATE = 1<<14,
685 STATION_INFO_BSS_PARAM = 1<<15,
686 STATION_INFO_CONNECTED_TIME = 1<<16,
687 STATION_INFO_ASSOC_REQ_IES = 1<<17,
688 STATION_INFO_STA_FLAGS = 1<<18,
689 STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
690 STATION_INFO_T_OFFSET = 1<<20,
691 STATION_INFO_LOCAL_PM = 1<<21,
692 STATION_INFO_PEER_PM = 1<<22,
693 STATION_INFO_NONPEER_PM = 1<<23,
697 * enum station_info_rate_flags - bitrate info flags
699 * Used by the driver to indicate the specific rate transmission
700 * type for 802.11n transmissions.
702 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
703 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
704 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
705 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
706 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
707 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
708 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
709 * @RATE_INFO_FLAGS_60G: 60GHz MCS
711 enum rate_info_flags {
712 RATE_INFO_FLAGS_MCS = BIT(0),
713 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
714 RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2),
715 RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3),
716 RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4),
717 RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5),
718 RATE_INFO_FLAGS_SHORT_GI = BIT(6),
719 RATE_INFO_FLAGS_60G = BIT(7),
723 * struct rate_info - bitrate information
725 * Information about a receiving or transmitting bitrate
727 * @flags: bitflag of flags from &enum rate_info_flags
728 * @mcs: mcs index if struct describes a 802.11n bitrate
729 * @legacy: bitrate in 100kbit/s for 802.11abg
730 * @nss: number of streams (VHT only)
740 * enum station_info_rate_flags - bitrate info flags
742 * Used by the driver to indicate the specific rate transmission
743 * type for 802.11n transmissions.
745 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
746 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
747 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
749 enum bss_param_flags {
750 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
751 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
752 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
756 * struct sta_bss_parameters - BSS parameters for the attached station
758 * Information about the currently associated BSS
760 * @flags: bitflag of flags from &enum bss_param_flags
761 * @dtim_period: DTIM period for the BSS
762 * @beacon_interval: beacon interval
764 struct sta_bss_parameters {
771 * struct station_info - station information
773 * Station information filled by driver for get_station() and dump_station.
775 * @filled: bitflag of flags from &enum station_info_flags
776 * @connected_time: time(in secs) since a station is last connected
777 * @inactive_time: time since last station activity (tx/rx) in milliseconds
778 * @rx_bytes: bytes received from this station
779 * @tx_bytes: bytes transmitted to this station
780 * @llid: mesh local link id
781 * @plid: mesh peer link id
782 * @plink_state: mesh peer link state
783 * @signal: The signal strength, type depends on the wiphy's signal_type.
784 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
785 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
786 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
787 * @txrate: current unicast bitrate from this station
788 * @rxrate: current unicast bitrate to this station
789 * @rx_packets: packets received from this station
790 * @tx_packets: packets transmitted to this station
791 * @tx_retries: cumulative retry counts
792 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
793 * @rx_dropped_misc: Dropped for un-specified reason.
794 * @bss_param: current BSS parameters
795 * @generation: generation number for nl80211 dumps.
796 * This number should increase every time the list of stations
797 * changes, i.e. when a station is added or removed, so that
798 * userspace can tell whether it got a consistent snapshot.
799 * @assoc_req_ies: IEs from (Re)Association Request.
800 * This is used only when in AP mode with drivers that do not use
801 * user space MLME/SME implementation. The information is provided for
802 * the cfg80211_new_sta() calls to notify user space of the IEs.
803 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
804 * @sta_flags: station flags mask & values
805 * @beacon_loss_count: Number of times beacon loss event has triggered.
806 * @t_offset: Time offset of the station relative to this host.
807 * @local_pm: local mesh STA power save mode
808 * @peer_pm: peer mesh STA power save mode
809 * @nonpeer_pm: non-peer mesh STA power save mode
811 struct station_info {
822 struct rate_info txrate;
823 struct rate_info rxrate;
829 struct sta_bss_parameters bss_param;
830 struct nl80211_sta_flag_update sta_flags;
834 const u8 *assoc_req_ies;
835 size_t assoc_req_ies_len;
837 u32 beacon_loss_count;
839 enum nl80211_mesh_power_mode local_pm;
840 enum nl80211_mesh_power_mode peer_pm;
841 enum nl80211_mesh_power_mode nonpeer_pm;
844 * Note: Add a new enum station_info_flags value for each new field and
845 * use it to check which fields are initialized.
850 * enum monitor_flags - monitor flags
852 * Monitor interface configuration flags. Note that these must be the bits
853 * according to the nl80211 flags.
855 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
856 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
857 * @MONITOR_FLAG_CONTROL: pass control frames
858 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
859 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
862 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
863 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
864 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
865 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
866 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
870 * enum mpath_info_flags - mesh path information flags
872 * Used by the driver to indicate which info in &struct mpath_info it has filled
873 * in during get_station() or dump_station().
875 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
876 * @MPATH_INFO_SN: @sn filled
877 * @MPATH_INFO_METRIC: @metric filled
878 * @MPATH_INFO_EXPTIME: @exptime filled
879 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
880 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
881 * @MPATH_INFO_FLAGS: @flags filled
883 enum mpath_info_flags {
884 MPATH_INFO_FRAME_QLEN = BIT(0),
885 MPATH_INFO_SN = BIT(1),
886 MPATH_INFO_METRIC = BIT(2),
887 MPATH_INFO_EXPTIME = BIT(3),
888 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
889 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
890 MPATH_INFO_FLAGS = BIT(6),
894 * struct mpath_info - mesh path information
896 * Mesh path information filled by driver for get_mpath() and dump_mpath().
898 * @filled: bitfield of flags from &enum mpath_info_flags
899 * @frame_qlen: number of queued frames for this destination
900 * @sn: target sequence number
901 * @metric: metric (cost) of this mesh path
902 * @exptime: expiration time for the mesh path from now, in msecs
903 * @flags: mesh path flags
904 * @discovery_timeout: total mesh path discovery timeout, in msecs
905 * @discovery_retries: mesh path discovery retries
906 * @generation: generation number for nl80211 dumps.
907 * This number should increase every time the list of mesh paths
908 * changes, i.e. when a station is added or removed, so that
909 * userspace can tell whether it got a consistent snapshot.
917 u32 discovery_timeout;
918 u8 discovery_retries;
925 * struct bss_parameters - BSS parameters
927 * Used to change BSS parameters (mainly for AP mode).
929 * @use_cts_prot: Whether to use CTS protection
930 * (0 = no, 1 = yes, -1 = do not change)
931 * @use_short_preamble: Whether the use of short preambles is allowed
932 * (0 = no, 1 = yes, -1 = do not change)
933 * @use_short_slot_time: Whether the use of short slot time is allowed
934 * (0 = no, 1 = yes, -1 = do not change)
935 * @basic_rates: basic rates in IEEE 802.11 format
936 * (or NULL for no change)
937 * @basic_rates_len: number of basic rates
938 * @ap_isolate: do not forward packets between connected stations
939 * @ht_opmode: HT Operation mode
940 * (u16 = opmode, -1 = do not change)
941 * @p2p_ctwindow: P2P CT Window (-1 = no change)
942 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
944 struct bss_parameters {
946 int use_short_preamble;
947 int use_short_slot_time;
952 s8 p2p_ctwindow, p2p_opp_ps;
956 * struct mesh_config - 802.11s mesh configuration
958 * These parameters can be changed while the mesh is active.
960 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
961 * by the Mesh Peering Open message
962 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
963 * used by the Mesh Peering Open message
964 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
965 * the mesh peering management to close a mesh peering
966 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
968 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
969 * be sent to establish a new peer link instance in a mesh
970 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
971 * @element_ttl: the value of TTL field set at a mesh STA for path selection
973 * @auto_open_plinks: whether we should automatically open peer links when we
974 * detect compatible mesh peers
975 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
976 * synchronize to for 11s default synchronization method
977 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
978 * that an originator mesh STA can send to a particular path target
979 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
980 * @min_discovery_timeout: the minimum length of time to wait until giving up on
981 * a path discovery in milliseconds
982 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
983 * receiving a PREQ shall consider the forwarding information from the
984 * root to be valid. (TU = time unit)
985 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
986 * which a mesh STA can send only one action frame containing a PREQ
988 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
989 * which a mesh STA can send only one Action frame containing a PERR
991 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
992 * it takes for an HWMP information element to propagate across the mesh
993 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
994 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
995 * announcements are transmitted
996 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
997 * station has access to a broader network beyond the MBSS. (This is
998 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
999 * only means that the station will announce others it's a mesh gate, but
1000 * not necessarily using the gate announcement protocol. Still keeping the
1001 * same nomenclature to be in sync with the spec)
1002 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1003 * entity (default is TRUE - forwarding entity)
1004 * @rssi_threshold: the threshold for average signal strength of candidate
1005 * station to establish a peer link
1006 * @ht_opmode: mesh HT protection mode
1008 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1009 * receiving a proactive PREQ shall consider the forwarding information to
1010 * the root mesh STA to be valid.
1012 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1013 * PREQs are transmitted.
1014 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1015 * during which a mesh STA can send only one Action frame containing
1016 * a PREQ element for root path confirmation.
1017 * @power_mode: The default mesh power save mode which will be the initial
1018 * setting for new peer links.
1019 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1020 * after transmitting its beacon.
1022 struct mesh_config {
1023 u16 dot11MeshRetryTimeout;
1024 u16 dot11MeshConfirmTimeout;
1025 u16 dot11MeshHoldingTimeout;
1026 u16 dot11MeshMaxPeerLinks;
1027 u8 dot11MeshMaxRetries;
1030 bool auto_open_plinks;
1031 u32 dot11MeshNbrOffsetMaxNeighbor;
1032 u8 dot11MeshHWMPmaxPREQretries;
1033 u32 path_refresh_time;
1034 u16 min_discovery_timeout;
1035 u32 dot11MeshHWMPactivePathTimeout;
1036 u16 dot11MeshHWMPpreqMinInterval;
1037 u16 dot11MeshHWMPperrMinInterval;
1038 u16 dot11MeshHWMPnetDiameterTraversalTime;
1039 u8 dot11MeshHWMPRootMode;
1040 u16 dot11MeshHWMPRannInterval;
1041 bool dot11MeshGateAnnouncementProtocol;
1042 bool dot11MeshForwarding;
1045 u32 dot11MeshHWMPactivePathToRootTimeout;
1046 u16 dot11MeshHWMProotInterval;
1047 u16 dot11MeshHWMPconfirmationInterval;
1048 enum nl80211_mesh_power_mode power_mode;
1049 u16 dot11MeshAwakeWindowDuration;
1053 * struct mesh_setup - 802.11s mesh setup configuration
1054 * @chandef: defines the channel to use
1055 * @mesh_id: the mesh ID
1056 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1057 * @sync_method: which synchronization method to use
1058 * @path_sel_proto: which path selection protocol to use
1059 * @path_metric: which metric to use
1060 * @ie: vendor information elements (optional)
1061 * @ie_len: length of vendor information elements
1062 * @is_authenticated: this mesh requires authentication
1063 * @is_secure: this mesh uses security
1064 * @dtim_period: DTIM period to use
1065 * @beacon_interval: beacon interval to use
1066 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1068 * These parameters are fixed when the mesh is created.
1071 struct cfg80211_chan_def chandef;
1079 bool is_authenticated;
1082 u16 beacon_interval;
1083 int mcast_rate[IEEE80211_NUM_BANDS];
1087 * struct ieee80211_txq_params - TX queue parameters
1088 * @ac: AC identifier
1089 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1090 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1092 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1094 * @aifs: Arbitration interframe space [0..255]
1096 struct ieee80211_txq_params {
1105 * DOC: Scanning and BSS list handling
1107 * The scanning process itself is fairly simple, but cfg80211 offers quite
1108 * a bit of helper functionality. To start a scan, the scan operation will
1109 * be invoked with a scan definition. This scan definition contains the
1110 * channels to scan, and the SSIDs to send probe requests for (including the
1111 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1112 * probe. Additionally, a scan request may contain extra information elements
1113 * that should be added to the probe request. The IEs are guaranteed to be
1114 * well-formed, and will not exceed the maximum length the driver advertised
1115 * in the wiphy structure.
1117 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1118 * it is responsible for maintaining the BSS list; the driver should not
1119 * maintain a list itself. For this notification, various functions exist.
1121 * Since drivers do not maintain a BSS list, there are also a number of
1122 * functions to search for a BSS and obtain information about it from the
1123 * BSS structure cfg80211 maintains. The BSS list is also made available
1128 * struct cfg80211_ssid - SSID description
1130 * @ssid_len: length of the ssid
1132 struct cfg80211_ssid {
1133 u8 ssid[IEEE80211_MAX_SSID_LEN];
1138 * struct cfg80211_scan_request - scan request description
1140 * @ssids: SSIDs to scan for (active scan only)
1141 * @n_ssids: number of SSIDs
1142 * @channels: channels to scan on.
1143 * @n_channels: total number of channels to scan
1144 * @ie: optional information element(s) to add into Probe Request or %NULL
1145 * @ie_len: length of ie in octets
1146 * @flags: bit field of flags controlling operation
1147 * @rates: bitmap of rates to advertise for each band
1148 * @wiphy: the wiphy this was for
1149 * @scan_start: time (in jiffies) when the scan started
1150 * @wdev: the wireless device to scan for
1151 * @aborted: (internal) scan request was notified as aborted
1152 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1154 struct cfg80211_scan_request {
1155 struct cfg80211_ssid *ssids;
1162 u32 rates[IEEE80211_NUM_BANDS];
1164 struct wireless_dev *wdev;
1167 struct wiphy *wiphy;
1168 unsigned long scan_start;
1173 struct ieee80211_channel *channels[0];
1177 * struct cfg80211_match_set - sets of attributes to match
1179 * @ssid: SSID to be matched
1181 struct cfg80211_match_set {
1182 struct cfg80211_ssid ssid;
1186 * struct cfg80211_sched_scan_request - scheduled scan request description
1188 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1189 * @n_ssids: number of SSIDs
1190 * @n_channels: total number of channels to scan
1191 * @interval: interval between each scheduled scan cycle
1192 * @ie: optional information element(s) to add into Probe Request or %NULL
1193 * @ie_len: length of ie in octets
1194 * @flags: bit field of flags controlling operation
1195 * @match_sets: sets of parameters to be matched for a scan result
1196 * entry to be considered valid and to be passed to the host
1197 * (others are filtered out).
1198 * If ommited, all results are passed.
1199 * @n_match_sets: number of match sets
1200 * @wiphy: the wiphy this was for
1201 * @dev: the interface
1202 * @channels: channels to scan
1203 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1205 struct cfg80211_sched_scan_request {
1206 struct cfg80211_ssid *ssids;
1213 struct cfg80211_match_set *match_sets;
1218 struct wiphy *wiphy;
1219 struct net_device *dev;
1220 unsigned long scan_start;
1223 struct ieee80211_channel *channels[0];
1227 * enum cfg80211_signal_type - signal type
1229 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1230 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1231 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1233 enum cfg80211_signal_type {
1234 CFG80211_SIGNAL_TYPE_NONE,
1235 CFG80211_SIGNAL_TYPE_MBM,
1236 CFG80211_SIGNAL_TYPE_UNSPEC,
1240 * struct cfg80211_bss_ie_data - BSS entry IE data
1241 * @rcu_head: internal use, for freeing
1242 * @len: length of the IEs
1245 struct cfg80211_bss_ies {
1246 struct rcu_head rcu_head;
1252 * struct cfg80211_bss - BSS description
1254 * This structure describes a BSS (which may also be a mesh network)
1255 * for use in scan results and similar.
1257 * @channel: channel this BSS is on
1258 * @bssid: BSSID of the BSS
1259 * @tsf: timestamp of last received update
1260 * @beacon_interval: the beacon interval as from the frame
1261 * @capability: the capability field in host byte order
1262 * @ies: the information elements (Note that there
1263 * is no guarantee that these are well-formed!); this is a pointer to
1264 * either the beacon_ies or proberesp_ies depending on whether Probe
1265 * Response frame has been received
1266 * @beacon_ies: the information elements from the last Beacon frame
1267 * @proberesp_ies: the information elements from the last Probe Response frame
1268 * @signal: signal strength value (type depends on the wiphy's signal_type)
1269 * @free_priv: function pointer to free private data
1270 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1272 struct cfg80211_bss {
1275 struct ieee80211_channel *channel;
1277 const struct cfg80211_bss_ies __rcu *ies;
1278 const struct cfg80211_bss_ies __rcu *beacon_ies;
1279 const struct cfg80211_bss_ies __rcu *proberesp_ies;
1281 void (*free_priv)(struct cfg80211_bss *bss);
1285 u16 beacon_interval;
1290 u8 priv[0] __aligned(sizeof(void *));
1294 * ieee80211_bss_get_ie - find IE with given ID
1295 * @bss: the bss to search
1298 * Note that the return value is an RCU-protected pointer, so
1299 * rcu_read_lock() must be held when calling this function.
1300 * Return: %NULL if not found.
1302 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1306 * struct cfg80211_auth_request - Authentication request data
1308 * This structure provides information needed to complete IEEE 802.11
1311 * @bss: The BSS to authenticate with.
1312 * @auth_type: Authentication type (algorithm)
1313 * @ie: Extra IEs to add to Authentication frame or %NULL
1314 * @ie_len: Length of ie buffer in octets
1315 * @key_len: length of WEP key for shared key authentication
1316 * @key_idx: index of WEP key for shared key authentication
1317 * @key: WEP key for shared key authentication
1318 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1319 * Authentication transaction sequence number field.
1320 * @sae_data_len: Length of sae_data buffer in octets
1322 struct cfg80211_auth_request {
1323 struct cfg80211_bss *bss;
1326 enum nl80211_auth_type auth_type;
1328 u8 key_len, key_idx;
1330 size_t sae_data_len;
1334 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1336 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1338 enum cfg80211_assoc_req_flags {
1339 ASSOC_REQ_DISABLE_HT = BIT(0),
1343 * struct cfg80211_assoc_request - (Re)Association request data
1345 * This structure provides information needed to complete IEEE 802.11
1347 * @bss: The BSS to associate with. If the call is successful the driver
1348 * is given a reference that it must release, normally via a call to
1349 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1350 * call to cfg80211_put_bss() (in addition to calling
1351 * cfg80211_send_assoc_timeout())
1352 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1353 * @ie_len: Length of ie buffer in octets
1354 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1355 * @crypto: crypto settings
1356 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1357 * @flags: See &enum cfg80211_assoc_req_flags
1358 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1359 * will be used in ht_capa. Un-supported values will be ignored.
1360 * @ht_capa_mask: The bits of ht_capa which are to be used.
1362 struct cfg80211_assoc_request {
1363 struct cfg80211_bss *bss;
1364 const u8 *ie, *prev_bssid;
1366 struct cfg80211_crypto_settings crypto;
1369 struct ieee80211_ht_cap ht_capa;
1370 struct ieee80211_ht_cap ht_capa_mask;
1374 * struct cfg80211_deauth_request - Deauthentication request data
1376 * This structure provides information needed to complete IEEE 802.11
1379 * @bssid: the BSSID of the BSS to deauthenticate from
1380 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1381 * @ie_len: Length of ie buffer in octets
1382 * @reason_code: The reason code for the deauthentication
1384 struct cfg80211_deauth_request {
1389 bool local_state_change;
1393 * struct cfg80211_disassoc_request - Disassociation request data
1395 * This structure provides information needed to complete IEEE 802.11
1398 * @bss: the BSS to disassociate from
1399 * @ie: Extra IEs to add to Disassociation frame or %NULL
1400 * @ie_len: Length of ie buffer in octets
1401 * @reason_code: The reason code for the disassociation
1402 * @local_state_change: This is a request for a local state only, i.e., no
1403 * Disassociation frame is to be transmitted.
1405 struct cfg80211_disassoc_request {
1406 struct cfg80211_bss *bss;
1410 bool local_state_change;
1414 * struct cfg80211_ibss_params - IBSS parameters
1416 * This structure defines the IBSS parameters for the join_ibss()
1419 * @ssid: The SSID, will always be non-null.
1420 * @ssid_len: The length of the SSID, will always be non-zero.
1421 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1422 * search for IBSSs with a different BSSID.
1423 * @chandef: defines the channel to use if no other IBSS to join can be found
1424 * @channel_fixed: The channel should be fixed -- do not search for
1425 * IBSSs to join on other channels.
1426 * @ie: information element(s) to include in the beacon
1427 * @ie_len: length of that
1428 * @beacon_interval: beacon interval to use
1429 * @privacy: this is a protected network, keys will be configured
1431 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1432 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1433 * required to assume that the port is unauthorized until authorized by
1434 * user space. Otherwise, port is marked authorized by default.
1435 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1436 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1438 struct cfg80211_ibss_params {
1441 struct cfg80211_chan_def chandef;
1443 u8 ssid_len, ie_len;
1444 u16 beacon_interval;
1449 int mcast_rate[IEEE80211_NUM_BANDS];
1453 * struct cfg80211_connect_params - Connection parameters
1455 * This structure provides information needed to complete IEEE 802.11
1456 * authentication and association.
1458 * @channel: The channel to use or %NULL if not specified (auto-select based
1460 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1463 * @ssid_len: Length of ssid in octets
1464 * @auth_type: Authentication type (algorithm)
1465 * @ie: IEs for association request
1466 * @ie_len: Length of assoc_ie in octets
1467 * @privacy: indicates whether privacy-enabled APs should be used
1468 * @mfp: indicate whether management frame protection is used
1469 * @crypto: crypto settings
1470 * @key_len: length of WEP key for shared key authentication
1471 * @key_idx: index of WEP key for shared key authentication
1472 * @key: WEP key for shared key authentication
1473 * @flags: See &enum cfg80211_assoc_req_flags
1474 * @bg_scan_period: Background scan period in seconds
1475 * or -1 to indicate that default value is to be used.
1476 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1477 * will be used in ht_capa. Un-supported values will be ignored.
1478 * @ht_capa_mask: The bits of ht_capa which are to be used.
1480 struct cfg80211_connect_params {
1481 struct ieee80211_channel *channel;
1485 enum nl80211_auth_type auth_type;
1489 enum nl80211_mfp mfp;
1490 struct cfg80211_crypto_settings crypto;
1492 u8 key_len, key_idx;
1495 struct ieee80211_ht_cap ht_capa;
1496 struct ieee80211_ht_cap ht_capa_mask;
1500 * enum wiphy_params_flags - set_wiphy_params bitfield values
1501 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1502 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1503 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1504 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1505 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1507 enum wiphy_params_flags {
1508 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
1509 WIPHY_PARAM_RETRY_LONG = 1 << 1,
1510 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
1511 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
1512 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
1516 * cfg80211_bitrate_mask - masks for bitrate control
1518 struct cfg80211_bitrate_mask {
1521 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
1522 } control[IEEE80211_NUM_BANDS];
1525 * struct cfg80211_pmksa - PMK Security Association
1527 * This structure is passed to the set/del_pmksa() method for PMKSA
1530 * @bssid: The AP's BSSID.
1531 * @pmkid: The PMK material itself.
1533 struct cfg80211_pmksa {
1539 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1540 * @mask: bitmask where to match pattern and where to ignore bytes,
1541 * one bit per byte, in same format as nl80211
1542 * @pattern: bytes to match where bitmask is 1
1543 * @pattern_len: length of pattern (in bytes)
1545 * Internal note: @mask and @pattern are allocated in one chunk of
1546 * memory, free @mask only!
1548 struct cfg80211_wowlan_trig_pkt_pattern {
1554 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1556 * This structure defines the enabled WoWLAN triggers for the device.
1557 * @any: wake up on any activity -- special trigger if device continues
1558 * operating as normal during suspend
1559 * @disconnect: wake up if getting disconnected
1560 * @magic_pkt: wake up on receiving magic packet
1561 * @patterns: wake up on receiving packet matching a pattern
1562 * @n_patterns: number of patterns
1563 * @gtk_rekey_failure: wake up on GTK rekey failure
1564 * @eap_identity_req: wake up on EAP identity request packet
1565 * @four_way_handshake: wake up on 4-way handshake
1566 * @rfkill_release: wake up when rfkill is released
1568 struct cfg80211_wowlan {
1569 bool any, disconnect, magic_pkt, gtk_rekey_failure,
1570 eap_identity_req, four_way_handshake,
1572 struct cfg80211_wowlan_trig_pkt_pattern *patterns;
1577 * struct cfg80211_gtk_rekey_data - rekey data
1578 * @kek: key encryption key
1579 * @kck: key confirmation key
1580 * @replay_ctr: replay counter
1582 struct cfg80211_gtk_rekey_data {
1583 u8 kek[NL80211_KEK_LEN];
1584 u8 kck[NL80211_KCK_LEN];
1585 u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
1589 * struct cfg80211_ops - backend description for wireless configuration
1591 * This struct is registered by fullmac card drivers and/or wireless stacks
1592 * in order to handle configuration requests on their interfaces.
1594 * All callbacks except where otherwise noted should return 0
1595 * on success or a negative error code.
1597 * All operations are currently invoked under rtnl for consistency with the
1598 * wireless extensions but this is subject to reevaluation as soon as this
1599 * code is used more widely and we have a first user without wext.
1601 * @suspend: wiphy device needs to be suspended. The variable @wow will
1602 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1603 * configured for the device.
1604 * @resume: wiphy device needs to be resumed
1605 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1606 * to call device_set_wakeup_enable() to enable/disable wakeup from
1609 * @add_virtual_intf: create a new virtual interface with the given name,
1610 * must set the struct wireless_dev's iftype. Beware: You must create
1611 * the new netdev in the wiphy's network namespace! Returns the struct
1612 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
1613 * also set the address member in the wdev.
1615 * @del_virtual_intf: remove the virtual interface
1617 * @change_virtual_intf: change type/configuration of virtual interface,
1618 * keep the struct wireless_dev's iftype updated.
1620 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1621 * when adding a group key.
1623 * @get_key: get information about the key with the given parameters.
1624 * @mac_addr will be %NULL when requesting information for a group
1625 * key. All pointers given to the @callback function need not be valid
1626 * after it returns. This function should return an error if it is
1627 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1629 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1630 * and @key_index, return -ENOENT if the key doesn't exist.
1632 * @set_default_key: set the default key on an interface
1634 * @set_default_mgmt_key: set the default management frame key on an interface
1636 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1638 * @start_ap: Start acting in AP mode defined by the parameters.
1639 * @change_beacon: Change the beacon parameters for an access point mode
1640 * interface. This should reject the call when AP mode wasn't started.
1641 * @stop_ap: Stop being an AP, including stopping beaconing.
1643 * @add_station: Add a new station.
1644 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1645 * @change_station: Modify a given station. Note that flags changes are not much
1646 * validated in cfg80211, in particular the auth/assoc/authorized flags
1647 * might come to the driver in invalid combinations -- make sure to check
1648 * them, also against the existing state! Also, supported_rates changes are
1649 * not checked in station mode -- drivers need to reject (or ignore) them
1650 * for anything but TDLS peers.
1651 * @get_station: get station information for the station identified by @mac
1652 * @dump_station: dump station callback -- resume dump at index @idx
1654 * @add_mpath: add a fixed mesh path
1655 * @del_mpath: delete a given mesh path
1656 * @change_mpath: change a given mesh path
1657 * @get_mpath: get a mesh path for the given parameters
1658 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1659 * @join_mesh: join the mesh network with the specified parameters
1660 * @leave_mesh: leave the current mesh network
1662 * @get_mesh_config: Get the current mesh configuration
1664 * @update_mesh_config: Update mesh parameters on a running mesh.
1665 * The mask is a bitfield which tells us which parameters to
1666 * set, and which to leave alone.
1668 * @change_bss: Modify parameters for a given BSS.
1670 * @set_txq_params: Set TX queue parameters
1672 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1673 * as it doesn't implement join_mesh and needs to set the channel to
1674 * join the mesh instead.
1676 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1677 * interfaces are active this callback should reject the configuration.
1678 * If no interfaces are active or the device is down, the channel should
1679 * be stored for when a monitor interface becomes active.
1681 * @scan: Request to do a scan. If returning zero, the scan request is given
1682 * the driver, and will be valid until passed to cfg80211_scan_done().
1683 * For scan results, call cfg80211_inform_bss(); you can call this outside
1684 * the scan/scan_done bracket too.
1686 * @auth: Request to authenticate with the specified peer
1687 * @assoc: Request to (re)associate with the specified peer
1688 * @deauth: Request to deauthenticate from the specified peer
1689 * @disassoc: Request to disassociate from the specified peer
1691 * @connect: Connect to the ESS with the specified parameters. When connected,
1692 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1693 * If the connection fails for some reason, call cfg80211_connect_result()
1694 * with the status from the AP.
1695 * @disconnect: Disconnect from the BSS/ESS.
1697 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1698 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1700 * @leave_ibss: Leave the IBSS.
1702 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
1705 * @set_wiphy_params: Notify that wiphy parameters have changed;
1706 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1707 * have changed. The actual parameter values are available in
1708 * struct wiphy. If returning an error, no value should be changed.
1710 * @set_tx_power: set the transmit power according to the parameters,
1711 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
1712 * wdev may be %NULL if power was set for the wiphy, and will
1713 * always be %NULL unless the driver supports per-vif TX power
1714 * (as advertised by the nl80211 feature flag.)
1715 * @get_tx_power: store the current TX power into the dbm variable;
1716 * return 0 if successful
1718 * @set_wds_peer: set the WDS peer for a WDS interface
1720 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1721 * functions to adjust rfkill hw state
1723 * @dump_survey: get site survey information.
1725 * @remain_on_channel: Request the driver to remain awake on the specified
1726 * channel for the specified duration to complete an off-channel
1727 * operation (e.g., public action frame exchange). When the driver is
1728 * ready on the requested channel, it must indicate this with an event
1729 * notification by calling cfg80211_ready_on_channel().
1730 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1731 * This allows the operation to be terminated prior to timeout based on
1732 * the duration value.
1733 * @mgmt_tx: Transmit a management frame.
1734 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1735 * frame on another channel
1737 * @testmode_cmd: run a test mode command
1738 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1739 * used by the function, but 0 and 1 must not be touched. Additionally,
1740 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1741 * dump and return to userspace with an error, so be careful. If any data
1742 * was passed in from userspace then the data/len arguments will be present
1743 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1745 * @set_bitrate_mask: set the bitrate mask configuration
1747 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1748 * devices running firmwares capable of generating the (re) association
1749 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1750 * @del_pmksa: Delete a cached PMKID.
1751 * @flush_pmksa: Flush all cached PMKIDs.
1752 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1753 * allows the driver to adjust the dynamic ps timeout value.
1754 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1755 * @set_cqm_txe_config: Configure connection quality monitor TX error
1757 * @sched_scan_start: Tell the driver to start a scheduled scan.
1758 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan.
1760 * @mgmt_frame_register: Notify driver that a management frame type was
1761 * registered. Note that this callback may not sleep, and cannot run
1762 * concurrently with itself.
1764 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1765 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1766 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1767 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1769 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1771 * @set_ringparam: Set tx and rx ring sizes.
1773 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1775 * @tdls_mgmt: Transmit a TDLS management frame.
1776 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1778 * @probe_client: probe an associated client, must return a cookie that it
1779 * later passes to cfg80211_probe_status().
1781 * @set_noack_map: Set the NoAck Map for the TIDs.
1783 * @get_et_sset_count: Ethtool API to get string-set count.
1784 * See @ethtool_ops.get_sset_count
1786 * @get_et_stats: Ethtool API to get a set of u64 stats.
1787 * See @ethtool_ops.get_ethtool_stats
1789 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1790 * and perhaps other supported types of ethtool data-sets.
1791 * See @ethtool_ops.get_strings
1793 * @get_channel: Get the current operating channel for the virtual interface.
1794 * For monitor interfaces, it should return %NULL unless there's a single
1795 * current monitoring channel.
1797 * @start_p2p_device: Start the given P2P device.
1798 * @stop_p2p_device: Stop the given P2P device.
1800 struct cfg80211_ops {
1801 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
1802 int (*resume)(struct wiphy *wiphy);
1803 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
1805 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
1807 enum nl80211_iftype type,
1809 struct vif_params *params);
1810 int (*del_virtual_intf)(struct wiphy *wiphy,
1811 struct wireless_dev *wdev);
1812 int (*change_virtual_intf)(struct wiphy *wiphy,
1813 struct net_device *dev,
1814 enum nl80211_iftype type, u32 *flags,
1815 struct vif_params *params);
1817 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1818 u8 key_index, bool pairwise, const u8 *mac_addr,
1819 struct key_params *params);
1820 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1821 u8 key_index, bool pairwise, const u8 *mac_addr,
1823 void (*callback)(void *cookie, struct key_params*));
1824 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1825 u8 key_index, bool pairwise, const u8 *mac_addr);
1826 int (*set_default_key)(struct wiphy *wiphy,
1827 struct net_device *netdev,
1828 u8 key_index, bool unicast, bool multicast);
1829 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1830 struct net_device *netdev,
1833 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
1834 struct cfg80211_ap_settings *settings);
1835 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
1836 struct cfg80211_beacon_data *info);
1837 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
1840 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1841 u8 *mac, struct station_parameters *params);
1842 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1844 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1845 u8 *mac, struct station_parameters *params);
1846 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1847 u8 *mac, struct station_info *sinfo);
1848 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1849 int idx, u8 *mac, struct station_info *sinfo);
1851 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1852 u8 *dst, u8 *next_hop);
1853 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1855 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1856 u8 *dst, u8 *next_hop);
1857 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1858 u8 *dst, u8 *next_hop,
1859 struct mpath_info *pinfo);
1860 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1861 int idx, u8 *dst, u8 *next_hop,
1862 struct mpath_info *pinfo);
1863 int (*get_mesh_config)(struct wiphy *wiphy,
1864 struct net_device *dev,
1865 struct mesh_config *conf);
1866 int (*update_mesh_config)(struct wiphy *wiphy,
1867 struct net_device *dev, u32 mask,
1868 const struct mesh_config *nconf);
1869 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
1870 const struct mesh_config *conf,
1871 const struct mesh_setup *setup);
1872 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
1874 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1875 struct bss_parameters *params);
1877 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1878 struct ieee80211_txq_params *params);
1880 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
1881 struct net_device *dev,
1882 struct ieee80211_channel *chan);
1884 int (*set_monitor_channel)(struct wiphy *wiphy,
1885 struct cfg80211_chan_def *chandef);
1887 int (*scan)(struct wiphy *wiphy,
1888 struct cfg80211_scan_request *request);
1890 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1891 struct cfg80211_auth_request *req);
1892 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1893 struct cfg80211_assoc_request *req);
1894 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1895 struct cfg80211_deauth_request *req);
1896 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1897 struct cfg80211_disassoc_request *req);
1899 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1900 struct cfg80211_connect_params *sme);
1901 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1904 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1905 struct cfg80211_ibss_params *params);
1906 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1908 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
1909 int rate[IEEE80211_NUM_BANDS]);
1911 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1913 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
1914 enum nl80211_tx_power_setting type, int mbm);
1915 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
1918 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1921 void (*rfkill_poll)(struct wiphy *wiphy);
1923 #ifdef CONFIG_NL80211_TESTMODE
1924 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1925 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
1926 struct netlink_callback *cb,
1927 void *data, int len);
1930 int (*set_bitrate_mask)(struct wiphy *wiphy,
1931 struct net_device *dev,
1933 const struct cfg80211_bitrate_mask *mask);
1935 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1936 int idx, struct survey_info *info);
1938 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1939 struct cfg80211_pmksa *pmksa);
1940 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1941 struct cfg80211_pmksa *pmksa);
1942 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
1944 int (*remain_on_channel)(struct wiphy *wiphy,
1945 struct wireless_dev *wdev,
1946 struct ieee80211_channel *chan,
1947 unsigned int duration,
1949 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
1950 struct wireless_dev *wdev,
1953 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
1954 struct ieee80211_channel *chan, bool offchan,
1955 unsigned int wait, const u8 *buf, size_t len,
1956 bool no_cck, bool dont_wait_for_ack, u64 *cookie);
1957 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
1958 struct wireless_dev *wdev,
1961 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1962 bool enabled, int timeout);
1964 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
1965 struct net_device *dev,
1966 s32 rssi_thold, u32 rssi_hyst);
1968 int (*set_cqm_txe_config)(struct wiphy *wiphy,
1969 struct net_device *dev,
1970 u32 rate, u32 pkts, u32 intvl);
1972 void (*mgmt_frame_register)(struct wiphy *wiphy,
1973 struct wireless_dev *wdev,
1974 u16 frame_type, bool reg);
1976 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
1977 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
1979 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
1980 void (*get_ringparam)(struct wiphy *wiphy,
1981 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1983 int (*sched_scan_start)(struct wiphy *wiphy,
1984 struct net_device *dev,
1985 struct cfg80211_sched_scan_request *request);
1986 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
1988 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
1989 struct cfg80211_gtk_rekey_data *data);
1991 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1992 u8 *peer, u8 action_code, u8 dialog_token,
1993 u16 status_code, const u8 *buf, size_t len);
1994 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
1995 u8 *peer, enum nl80211_tdls_operation oper);
1997 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
1998 const u8 *peer, u64 *cookie);
2000 int (*set_noack_map)(struct wiphy *wiphy,
2001 struct net_device *dev,
2004 int (*get_et_sset_count)(struct wiphy *wiphy,
2005 struct net_device *dev, int sset);
2006 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
2007 struct ethtool_stats *stats, u64 *data);
2008 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
2009 u32 sset, u8 *data);
2011 int (*get_channel)(struct wiphy *wiphy,
2012 struct wireless_dev *wdev,
2013 struct cfg80211_chan_def *chandef);
2015 int (*start_p2p_device)(struct wiphy *wiphy,
2016 struct wireless_dev *wdev);
2017 void (*stop_p2p_device)(struct wiphy *wiphy,
2018 struct wireless_dev *wdev);
2022 * wireless hardware and networking interfaces structures
2023 * and registration/helper functions
2027 * enum wiphy_flags - wiphy capability flags
2029 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
2030 * has its own custom regulatory domain and cannot identify the
2031 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
2032 * we will disregard the first regulatory hint (when the
2033 * initiator is %REGDOM_SET_BY_CORE).
2034 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
2035 * ignore regulatory domain settings until it gets its own regulatory
2036 * domain via its regulatory_hint() unless the regulatory hint is
2037 * from a country IE. After its gets its own regulatory domain it will
2038 * only allow further regulatory domain settings to further enhance
2039 * compliance. For example if channel 13 and 14 are disabled by this
2040 * regulatory domain no user regulatory domain can enable these channels
2041 * at a later time. This can be used for devices which do not have
2042 * calibration information guaranteed for frequencies or settings
2043 * outside of its regulatory domain. If used in combination with
2044 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
2046 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
2047 * that passive scan flags and beaconing flags may not be lifted by
2048 * cfg80211 due to regulatory beacon hints. For more information on beacon
2049 * hints read the documenation for regulatory_hint_found_beacon()
2050 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2052 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2053 * by default -- this flag will be set depending on the kernel's default
2054 * on wiphy_new(), but can be changed by the driver if it has a good
2055 * reason to override the default
2056 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2057 * on a VLAN interface)
2058 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2059 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2060 * control port protocol ethertype. The device also honours the
2061 * control_port_no_encrypt flag.
2062 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2063 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2064 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2065 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2066 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2068 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2069 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2070 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2071 * link setup/discovery operations internally. Setup, discovery and
2072 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2073 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2074 * used for asking the driver/firmware to perform a TDLS operation.
2075 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2076 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2077 * when there are virtual interfaces in AP mode by calling
2078 * cfg80211_report_obss_beacon().
2079 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2080 * responds to probe-requests in hardware.
2081 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2082 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2085 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
2086 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
2087 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
2088 WIPHY_FLAG_NETNS_OK = BIT(3),
2089 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
2090 WIPHY_FLAG_4ADDR_AP = BIT(5),
2091 WIPHY_FLAG_4ADDR_STATION = BIT(6),
2092 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
2093 WIPHY_FLAG_IBSS_RSN = BIT(8),
2094 WIPHY_FLAG_MESH_AUTH = BIT(10),
2095 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
2096 /* use hole at 12 */
2097 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
2098 WIPHY_FLAG_AP_UAPSD = BIT(14),
2099 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
2100 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
2101 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
2102 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
2103 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
2104 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
2105 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
2109 * struct ieee80211_iface_limit - limit on certain interface types
2110 * @max: maximum number of interfaces of these types
2111 * @types: interface types (bits)
2113 struct ieee80211_iface_limit {
2119 * struct ieee80211_iface_combination - possible interface combination
2120 * @limits: limits for the given interface types
2121 * @n_limits: number of limitations
2122 * @num_different_channels: can use up to this many different channels
2123 * @max_interfaces: maximum number of interfaces in total allowed in this
2125 * @beacon_int_infra_match: In this combination, the beacon intervals
2126 * between infrastructure and AP types must match. This is required
2127 * only in special cases.
2128 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2130 * These examples can be expressed as follows:
2132 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2134 * struct ieee80211_iface_limit limits1[] = {
2135 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2136 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2138 * struct ieee80211_iface_combination combination1 = {
2139 * .limits = limits1,
2140 * .n_limits = ARRAY_SIZE(limits1),
2141 * .max_interfaces = 2,
2142 * .beacon_int_infra_match = true,
2146 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2148 * struct ieee80211_iface_limit limits2[] = {
2149 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2150 * BIT(NL80211_IFTYPE_P2P_GO), },
2152 * struct ieee80211_iface_combination combination2 = {
2153 * .limits = limits2,
2154 * .n_limits = ARRAY_SIZE(limits2),
2155 * .max_interfaces = 8,
2156 * .num_different_channels = 1,
2160 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2161 * This allows for an infrastructure connection and three P2P connections.
2163 * struct ieee80211_iface_limit limits3[] = {
2164 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2165 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2166 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2168 * struct ieee80211_iface_combination combination3 = {
2169 * .limits = limits3,
2170 * .n_limits = ARRAY_SIZE(limits3),
2171 * .max_interfaces = 4,
2172 * .num_different_channels = 2,
2175 struct ieee80211_iface_combination {
2176 const struct ieee80211_iface_limit *limits;
2177 u32 num_different_channels;
2180 bool beacon_int_infra_match;
2181 u8 radar_detect_widths;
2184 struct mac_address {
2188 struct ieee80211_txrx_stypes {
2193 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2194 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2195 * trigger that keeps the device operating as-is and
2196 * wakes up the host on any activity, for example a
2197 * received packet that passed filtering; note that the
2198 * packet should be preserved in that case
2199 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2201 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2202 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2203 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2204 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2205 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2206 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2208 enum wiphy_wowlan_support_flags {
2209 WIPHY_WOWLAN_ANY = BIT(0),
2210 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
2211 WIPHY_WOWLAN_DISCONNECT = BIT(2),
2212 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
2213 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
2214 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
2215 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
2216 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
2220 * struct wiphy_wowlan_support - WoWLAN support data
2221 * @flags: see &enum wiphy_wowlan_support_flags
2222 * @n_patterns: number of supported wakeup patterns
2223 * (see nl80211.h for the pattern definition)
2224 * @pattern_max_len: maximum length of each pattern
2225 * @pattern_min_len: minimum length of each pattern
2227 struct wiphy_wowlan_support {
2230 int pattern_max_len;
2231 int pattern_min_len;
2235 * struct wiphy - wireless hardware description
2236 * @reg_notifier: the driver's regulatory notification callback,
2237 * note that if your driver uses wiphy_apply_custom_regulatory()
2238 * the reg_notifier's request can be passed as NULL
2239 * @regd: the driver's regulatory domain, if one was requested via
2240 * the regulatory_hint() API. This can be used by the driver
2241 * on the reg_notifier() if it chooses to ignore future
2242 * regulatory domain changes caused by other drivers.
2243 * @signal_type: signal type reported in &struct cfg80211_bss.
2244 * @cipher_suites: supported cipher suites
2245 * @n_cipher_suites: number of supported cipher suites
2246 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2247 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2248 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2249 * -1 = fragmentation disabled, only odd values >= 256 used
2250 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2251 * @_net: the network namespace this wiphy currently lives in
2252 * @perm_addr: permanent MAC address of this device
2253 * @addr_mask: If the device supports multiple MAC addresses by masking,
2254 * set this to a mask with variable bits set to 1, e.g. if the last
2255 * four bits are variable then set it to 00:...:00:0f. The actual
2256 * variable bits shall be determined by the interfaces added, with
2257 * interfaces not matching the mask being rejected to be brought up.
2258 * @n_addresses: number of addresses in @addresses.
2259 * @addresses: If the device has more than one address, set this pointer
2260 * to a list of addresses (6 bytes each). The first one will be used
2261 * by default for perm_addr. In this case, the mask should be set to
2262 * all-zeroes. In this case it is assumed that the device can handle
2263 * the same number of arbitrary MAC addresses.
2264 * @registered: protects ->resume and ->suspend sysfs callbacks against
2265 * unregister hardware
2266 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2267 * automatically on wiphy renames
2268 * @dev: (virtual) struct device for this wiphy
2269 * @registered: helps synchronize suspend/resume with wiphy unregister
2270 * @wext: wireless extension handlers
2271 * @priv: driver private data (sized according to wiphy_new() parameter)
2272 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2273 * must be set by driver
2274 * @iface_combinations: Valid interface combinations array, should not
2275 * list single interface types.
2276 * @n_iface_combinations: number of entries in @iface_combinations array.
2277 * @software_iftypes: bitmask of software interface types, these are not
2278 * subject to any restrictions since they are purely managed in SW.
2279 * @flags: wiphy flags, see &enum wiphy_flags
2280 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2281 * @bss_priv_size: each BSS struct has private data allocated with it,
2282 * this variable determines its size
2283 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2285 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2286 * for in any given scheduled scan
2287 * @max_match_sets: maximum number of match sets the device can handle
2288 * when performing a scheduled scan, 0 if filtering is not
2290 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2291 * add to probe request frames transmitted during a scan, must not
2292 * include fixed IEs like supported rates
2293 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2295 * @coverage_class: current coverage class
2296 * @fw_version: firmware version for ethtool reporting
2297 * @hw_version: hardware version for ethtool reporting
2298 * @max_num_pmkids: maximum number of PMKIDs supported by device
2299 * @privid: a pointer that drivers can use to identify if an arbitrary
2300 * wiphy is theirs, e.g. in global notifiers
2301 * @bands: information about bands/channels supported by this device
2303 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2304 * transmitted through nl80211, points to an array indexed by interface
2307 * @available_antennas_tx: bitmap of antennas which are available to be
2308 * configured as TX antennas. Antenna configuration commands will be
2309 * rejected unless this or @available_antennas_rx is set.
2311 * @available_antennas_rx: bitmap of antennas which are available to be
2312 * configured as RX antennas. Antenna configuration commands will be
2313 * rejected unless this or @available_antennas_tx is set.
2315 * @probe_resp_offload:
2316 * Bitmap of supported protocols for probe response offloading.
2317 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2318 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2320 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2321 * may request, if implemented.
2323 * @wowlan: WoWLAN support information
2325 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2326 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2327 * If null, then none can be over-ridden.
2330 /* assign these fields before you register the wiphy */
2332 /* permanent MAC address(es) */
2333 u8 perm_addr[ETH_ALEN];
2334 u8 addr_mask[ETH_ALEN];
2336 struct mac_address *addresses;
2338 const struct ieee80211_txrx_stypes *mgmt_stypes;
2340 const struct ieee80211_iface_combination *iface_combinations;
2341 int n_iface_combinations;
2342 u16 software_iftypes;
2346 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2347 u16 interface_modes;
2349 u32 flags, features;
2353 enum cfg80211_signal_type signal_type;
2357 u8 max_sched_scan_ssids;
2359 u16 max_scan_ie_len;
2360 u16 max_sched_scan_ie_len;
2362 int n_cipher_suites;
2363 const u32 *cipher_suites;
2371 char fw_version[ETHTOOL_FWVERS_LEN];
2375 struct wiphy_wowlan_support wowlan;
2378 u16 max_remain_on_channel_duration;
2382 u32 available_antennas_tx;
2383 u32 available_antennas_rx;
2386 * Bitmap of supported protocols for probe response offloading
2387 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2388 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2390 u32 probe_resp_offload;
2392 /* If multiple wiphys are registered and you're handed e.g.
2393 * a regular netdev with assigned ieee80211_ptr, you won't
2394 * know whether it points to a wiphy your driver has registered
2395 * or not. Assign this to something global to your driver to
2396 * help determine whether you own this wiphy or not. */
2399 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
2401 /* Lets us get back the wiphy on the callback */
2402 void (*reg_notifier)(struct wiphy *wiphy,
2403 struct regulatory_request *request);
2405 /* fields below are read-only, assigned by cfg80211 */
2407 const struct ieee80211_regdomain __rcu *regd;
2409 /* the item in /sys/class/ieee80211/ points to this,
2410 * you need use set_wiphy_dev() (see below) */
2413 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2416 /* dir in debugfs: ieee80211/<wiphyname> */
2417 struct dentry *debugfsdir;
2419 const struct ieee80211_ht_cap *ht_capa_mod_mask;
2421 #ifdef CONFIG_NET_NS
2422 /* the network namespace this phy lives in currently */
2426 #ifdef CONFIG_CFG80211_WEXT
2427 const struct iw_handler_def *wext;
2430 char priv[0] __aligned(NETDEV_ALIGN);
2433 static inline struct net *wiphy_net(struct wiphy *wiphy)
2435 return read_pnet(&wiphy->_net);
2438 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
2440 write_pnet(&wiphy->_net, net);
2444 * wiphy_priv - return priv from wiphy
2446 * @wiphy: the wiphy whose priv pointer to return
2447 * Return: The priv of @wiphy.
2449 static inline void *wiphy_priv(struct wiphy *wiphy)
2452 return &wiphy->priv;
2456 * priv_to_wiphy - return the wiphy containing the priv
2458 * @priv: a pointer previously returned by wiphy_priv
2459 * Return: The wiphy of @priv.
2461 static inline struct wiphy *priv_to_wiphy(void *priv)
2464 return container_of(priv, struct wiphy, priv);
2468 * set_wiphy_dev - set device pointer for wiphy
2470 * @wiphy: The wiphy whose device to bind
2471 * @dev: The device to parent it to
2473 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
2475 wiphy->dev.parent = dev;
2479 * wiphy_dev - get wiphy dev pointer
2481 * @wiphy: The wiphy whose device struct to look up
2482 * Return: The dev of @wiphy.
2484 static inline struct device *wiphy_dev(struct wiphy *wiphy)
2486 return wiphy->dev.parent;
2490 * wiphy_name - get wiphy name
2492 * @wiphy: The wiphy whose name to return
2493 * Return: The name of @wiphy.
2495 static inline const char *wiphy_name(const struct wiphy *wiphy)
2497 return dev_name(&wiphy->dev);
2501 * wiphy_new - create a new wiphy for use with cfg80211
2503 * @ops: The configuration operations for this device
2504 * @sizeof_priv: The size of the private area to allocate
2506 * Create a new wiphy and associate the given operations with it.
2507 * @sizeof_priv bytes are allocated for private use.
2509 * Return: A pointer to the new wiphy. This pointer must be
2510 * assigned to each netdev's ieee80211_ptr for proper operation.
2512 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
2515 * wiphy_register - register a wiphy with cfg80211
2517 * @wiphy: The wiphy to register.
2519 * Return: A non-negative wiphy index or a negative error code.
2521 extern int wiphy_register(struct wiphy *wiphy);
2524 * wiphy_unregister - deregister a wiphy from cfg80211
2526 * @wiphy: The wiphy to unregister.
2528 * After this call, no more requests can be made with this priv
2529 * pointer, but the call may sleep to wait for an outstanding
2530 * request that is being handled.
2532 extern void wiphy_unregister(struct wiphy *wiphy);
2535 * wiphy_free - free wiphy
2537 * @wiphy: The wiphy to free
2539 extern void wiphy_free(struct wiphy *wiphy);
2541 /* internal structs */
2542 struct cfg80211_conn;
2543 struct cfg80211_internal_bss;
2544 struct cfg80211_cached_keys;
2547 * struct wireless_dev - wireless device state
2549 * For netdevs, this structure must be allocated by the driver
2550 * that uses the ieee80211_ptr field in struct net_device (this
2551 * is intentional so it can be allocated along with the netdev.)
2552 * It need not be registered then as netdev registration will
2553 * be intercepted by cfg80211 to see the new wireless device.
2555 * For non-netdev uses, it must also be allocated by the driver
2556 * in response to the cfg80211 callbacks that require it, as
2557 * there's no netdev registration in that case it may not be
2558 * allocated outside of callback operations that return it.
2560 * @wiphy: pointer to hardware description
2561 * @iftype: interface type
2562 * @list: (private) Used to collect the interfaces
2563 * @netdev: (private) Used to reference back to the netdev, may be %NULL
2564 * @identifier: (private) Identifier used in nl80211 to identify this
2565 * wireless device if it has no netdev
2566 * @current_bss: (private) Used by the internal configuration code
2567 * @channel: (private) Used by the internal configuration code to track
2568 * the user-set AP, monitor and WDS channel
2569 * @preset_chan: (private) Used by the internal configuration code to
2570 * track the channel to be used for AP later
2571 * @preset_chantype: (private) the corresponding channel type
2572 * @bssid: (private) Used by the internal configuration code
2573 * @ssid: (private) Used by the internal configuration code
2574 * @ssid_len: (private) Used by the internal configuration code
2575 * @mesh_id_len: (private) Used by the internal configuration code
2576 * @mesh_id_up_len: (private) Used by the internal configuration code
2577 * @wext: (private) Used by the internal wireless extensions compat code
2578 * @use_4addr: indicates 4addr mode is used on this interface, must be
2579 * set by driver (if supported) on add_interface BEFORE registering the
2580 * netdev and may otherwise be used by driver read-only, will be update
2581 * by cfg80211 on change_interface
2582 * @mgmt_registrations: list of registrations for management frames
2583 * @mgmt_registrations_lock: lock for the list
2584 * @mtx: mutex used to lock data in this struct
2585 * @cleanup_work: work struct used for cleanup that can't be done directly
2586 * @beacon_interval: beacon interval used on this device for transmitting
2587 * beacons, 0 when not valid
2588 * @address: The address for this device, valid only if @netdev is %NULL
2589 * @p2p_started: true if this is a P2P Device that has been started
2591 struct wireless_dev {
2592 struct wiphy *wiphy;
2593 enum nl80211_iftype iftype;
2595 /* the remainder of this struct should be private to cfg80211 */
2596 struct list_head list;
2597 struct net_device *netdev;
2601 struct list_head mgmt_registrations;
2602 spinlock_t mgmt_registrations_lock;
2606 struct work_struct cleanup_work;
2608 bool use_4addr, p2p_started;
2610 u8 address[ETH_ALEN] __aligned(sizeof(u16));
2612 /* currently used for IBSS and SME - might be rearranged later */
2613 u8 ssid[IEEE80211_MAX_SSID_LEN];
2614 u8 ssid_len, mesh_id_len, mesh_id_up_len;
2617 CFG80211_SME_CONNECTING,
2618 CFG80211_SME_CONNECTED,
2620 struct cfg80211_conn *conn;
2621 struct cfg80211_cached_keys *connect_keys;
2623 struct list_head event_list;
2624 spinlock_t event_lock;
2626 struct cfg80211_internal_bss *current_bss; /* associated / joined */
2627 struct cfg80211_chan_def preset_chandef;
2629 /* for AP and mesh channel tracking */
2630 struct ieee80211_channel *channel;
2637 int beacon_interval;
2639 u32 ap_unexpected_nlportid;
2641 #ifdef CONFIG_CFG80211_WEXT
2644 struct cfg80211_ibss_params ibss;
2645 struct cfg80211_connect_params connect;
2646 struct cfg80211_cached_keys *keys;
2649 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2650 u8 ssid[IEEE80211_MAX_SSID_LEN];
2651 s8 default_key, default_mgmt_key;
2652 bool prev_bssid_valid;
2657 static inline u8 *wdev_address(struct wireless_dev *wdev)
2660 return wdev->netdev->dev_addr;
2661 return wdev->address;
2665 * wdev_priv - return wiphy priv from wireless_dev
2667 * @wdev: The wireless device whose wiphy's priv pointer to return
2668 * Return: The wiphy priv of @wdev.
2670 static inline void *wdev_priv(struct wireless_dev *wdev)
2673 return wiphy_priv(wdev->wiphy);
2677 * DOC: Utility functions
2679 * cfg80211 offers a number of utility functions that can be useful.
2683 * ieee80211_channel_to_frequency - convert channel number to frequency
2684 * @chan: channel number
2685 * @band: band, necessary due to channel number overlap
2686 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
2688 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
2691 * ieee80211_frequency_to_channel - convert frequency to channel number
2692 * @freq: center frequency
2693 * Return: The corresponding channel, or 0 if the conversion failed.
2695 extern int ieee80211_frequency_to_channel(int freq);
2698 * Name indirection necessary because the ieee80211 code also has
2699 * a function named "ieee80211_get_channel", so if you include
2700 * cfg80211's header file you get cfg80211's version, if you try
2701 * to include both header files you'll (rightfully!) get a symbol
2704 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
2707 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2708 * @wiphy: the struct wiphy to get the channel for
2709 * @freq: the center frequency of the channel
2710 * Return: The channel struct from @wiphy at @freq.
2712 static inline struct ieee80211_channel *
2713 ieee80211_get_channel(struct wiphy *wiphy, int freq)
2715 return __ieee80211_get_channel(wiphy, freq);
2719 * ieee80211_get_response_rate - get basic rate for a given rate
2721 * @sband: the band to look for rates in
2722 * @basic_rates: bitmap of basic rates
2723 * @bitrate: the bitrate for which to find the basic rate
2725 * Return: The basic rate corresponding to a given bitrate, that
2726 * is the next lower bitrate contained in the basic rate map,
2727 * which is, for this function, given as a bitmap of indices of
2728 * rates in the band's bitrate table.
2730 struct ieee80211_rate *
2731 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
2732 u32 basic_rates, int bitrate);
2735 * Radiotap parsing functions -- for controlled injection support
2737 * Implemented in net/wireless/radiotap.c
2738 * Documentation in Documentation/networking/radiotap-headers.txt
2741 struct radiotap_align_size {
2742 uint8_t align:4, size:4;
2745 struct ieee80211_radiotap_namespace {
2746 const struct radiotap_align_size *align_size;
2752 struct ieee80211_radiotap_vendor_namespaces {
2753 const struct ieee80211_radiotap_namespace *ns;
2758 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2759 * @this_arg_index: index of current arg, valid after each successful call
2760 * to ieee80211_radiotap_iterator_next()
2761 * @this_arg: pointer to current radiotap arg; it is valid after each
2762 * call to ieee80211_radiotap_iterator_next() but also after
2763 * ieee80211_radiotap_iterator_init() where it will point to
2764 * the beginning of the actual data portion
2765 * @this_arg_size: length of the current arg, for convenience
2766 * @current_namespace: pointer to the current namespace definition
2767 * (or internally %NULL if the current namespace is unknown)
2768 * @is_radiotap_ns: indicates whether the current namespace is the default
2769 * radiotap namespace or not
2771 * @_rtheader: pointer to the radiotap header we are walking through
2772 * @_max_length: length of radiotap header in cpu byte ordering
2773 * @_arg_index: next argument index
2774 * @_arg: next argument pointer
2775 * @_next_bitmap: internal pointer to next present u32
2776 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2777 * @_vns: vendor namespace definitions
2778 * @_next_ns_data: beginning of the next namespace's data
2779 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2782 * Describes the radiotap parser state. Fields prefixed with an underscore
2783 * must not be used by users of the parser, only by the parser internally.
2786 struct ieee80211_radiotap_iterator {
2787 struct ieee80211_radiotap_header *_rtheader;
2788 const struct ieee80211_radiotap_vendor_namespaces *_vns;
2789 const struct ieee80211_radiotap_namespace *current_namespace;
2791 unsigned char *_arg, *_next_ns_data;
2792 __le32 *_next_bitmap;
2794 unsigned char *this_arg;
2802 uint32_t _bitmap_shifter;
2806 extern int ieee80211_radiotap_iterator_init(
2807 struct ieee80211_radiotap_iterator *iterator,
2808 struct ieee80211_radiotap_header *radiotap_header,
2809 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
2811 extern int ieee80211_radiotap_iterator_next(
2812 struct ieee80211_radiotap_iterator *iterator);
2815 extern const unsigned char rfc1042_header[6];
2816 extern const unsigned char bridge_tunnel_header[6];
2819 * ieee80211_get_hdrlen_from_skb - get header length from data
2823 * Given an skb with a raw 802.11 header at the data pointer this function
2824 * returns the 802.11 header length.
2826 * Return: The 802.11 header length in bytes (not including encryption
2827 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
2830 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
2833 * ieee80211_hdrlen - get header length in bytes from frame control
2834 * @fc: frame control field in little-endian format
2835 * Return: The header length in bytes.
2837 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2840 * ieee80211_get_mesh_hdrlen - get mesh extension header length
2841 * @meshhdr: the mesh extension header, only the flags field
2842 * (first byte) will be accessed
2843 * Return: The length of the extension header, which is always at
2844 * least 6 bytes and at most 18 if address 5 and 6 are present.
2846 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
2849 * DOC: Data path helpers
2851 * In addition to generic utilities, cfg80211 also offers
2852 * functions that help implement the data path for devices
2853 * that do not do the 802.11/802.3 conversion on the device.
2857 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2858 * @skb: the 802.11 data frame
2859 * @addr: the device MAC address
2860 * @iftype: the virtual interface type
2861 * Return: 0 on success. Non-zero on error.
2863 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2864 enum nl80211_iftype iftype);
2867 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2868 * @skb: the 802.3 frame
2869 * @addr: the device MAC address
2870 * @iftype: the virtual interface type
2871 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2872 * @qos: build 802.11 QoS data frame
2873 * Return: 0 on success, or a negative error code.
2875 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2876 enum nl80211_iftype iftype, u8 *bssid, bool qos);
2879 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2881 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2882 * 802.3 frames. The @list will be empty if the decode fails. The
2883 * @skb is consumed after the function returns.
2885 * @skb: The input IEEE 802.11n A-MSDU frame.
2886 * @list: The output list of 802.3 frames. It must be allocated and
2887 * initialized by by the caller.
2888 * @addr: The device MAC address.
2889 * @iftype: The device interface type.
2890 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2891 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2893 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
2894 const u8 *addr, enum nl80211_iftype iftype,
2895 const unsigned int extra_headroom,
2896 bool has_80211_header);
2899 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2900 * @skb: the data frame
2901 * Return: The 802.1p/1d tag.
2903 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
2906 * cfg80211_find_ie - find information element in data
2909 * @ies: data consisting of IEs
2910 * @len: length of data
2912 * Return: %NULL if the element ID could not be found or if
2913 * the element is invalid (claims to be longer than the given
2914 * data), or a pointer to the first byte of the requested
2915 * element, that is the byte containing the element ID.
2917 * Note: There are no checks on the element length other than
2918 * having to fit into the given data.
2920 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
2923 * cfg80211_find_vendor_ie - find vendor specific information element in data
2926 * @oui_type: vendor-specific OUI type
2927 * @ies: data consisting of IEs
2928 * @len: length of data
2930 * Return: %NULL if the vendor specific element ID could not be found or if the
2931 * element is invalid (claims to be longer than the given data), or a pointer to
2932 * the first byte of the requested element, that is the byte containing the
2935 * Note: There are no checks on the element length other than having to fit into
2938 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
2939 const u8 *ies, int len);
2942 * DOC: Regulatory enforcement infrastructure
2948 * regulatory_hint - driver hint to the wireless core a regulatory domain
2949 * @wiphy: the wireless device giving the hint (used only for reporting
2951 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2952 * should be in. If @rd is set this should be NULL. Note that if you
2953 * set this to NULL you should still set rd->alpha2 to some accepted
2956 * Wireless drivers can use this function to hint to the wireless core
2957 * what it believes should be the current regulatory domain by
2958 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2959 * domain should be in or by providing a completely build regulatory domain.
2960 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2961 * for a regulatory domain structure for the respective country.
2963 * The wiphy must have been registered to cfg80211 prior to this call.
2964 * For cfg80211 drivers this means you must first use wiphy_register(),
2965 * for mac80211 drivers you must first use ieee80211_register_hw().
2967 * Drivers should check the return value, its possible you can get
2970 * Return: 0 on success. -ENOMEM.
2972 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
2975 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2976 * @wiphy: the wireless device we want to process the regulatory domain on
2977 * @regd: the custom regulatory domain to use for this wiphy
2979 * Drivers can sometimes have custom regulatory domains which do not apply
2980 * to a specific country. Drivers can use this to apply such custom regulatory
2981 * domains. This routine must be called prior to wiphy registration. The
2982 * custom regulatory domain will be trusted completely and as such previous
2983 * default channel settings will be disregarded. If no rule is found for a
2984 * channel on the regulatory domain the channel will be disabled.
2986 extern void wiphy_apply_custom_regulatory(
2987 struct wiphy *wiphy,
2988 const struct ieee80211_regdomain *regd);
2991 * freq_reg_info - get regulatory information for the given frequency
2992 * @wiphy: the wiphy for which we want to process this rule for
2993 * @center_freq: Frequency in KHz for which we want regulatory information for
2995 * Use this function to get the regulatory rule for a specific frequency on
2996 * a given wireless device. If the device has a specific regulatory domain
2997 * it wants to follow we respect that unless a country IE has been received
2998 * and processed already.
3000 * Return: A valid pointer, or, when an error occurs, for example if no rule
3001 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3002 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3003 * value will be -ERANGE if we determine the given center_freq does not even
3004 * have a regulatory rule for a frequency range in the center_freq's band.
3005 * See freq_in_rule_band() for our current definition of a band -- this is
3006 * purely subjective and right now it's 802.11 specific.
3008 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
3012 * callbacks for asynchronous cfg80211 methods, notification
3013 * functions and BSS handling helpers
3017 * cfg80211_scan_done - notify that scan finished
3019 * @request: the corresponding scan request
3020 * @aborted: set to true if the scan was aborted for any reason,
3021 * userspace will be notified of that
3023 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
3026 * cfg80211_sched_scan_results - notify that new scan results are available
3028 * @wiphy: the wiphy which got scheduled scan results
3030 void cfg80211_sched_scan_results(struct wiphy *wiphy);
3033 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3035 * @wiphy: the wiphy on which the scheduled scan stopped
3037 * The driver can call this function to inform cfg80211 that the
3038 * scheduled scan had to be stopped, for whatever reason. The driver
3039 * is then called back via the sched_scan_stop operation when done.
3041 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
3044 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
3046 * @wiphy: the wiphy reporting the BSS
3047 * @channel: The channel the frame was received on
3048 * @mgmt: the management frame (probe response or beacon)
3049 * @len: length of the management frame
3050 * @signal: the signal strength, type depends on the wiphy's signal_type
3051 * @gfp: context flags
3053 * This informs cfg80211 that BSS information was found and
3054 * the BSS should be updated/added.
3056 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3057 * Or %NULL on error.
3059 struct cfg80211_bss * __must_check
3060 cfg80211_inform_bss_frame(struct wiphy *wiphy,
3061 struct ieee80211_channel *channel,
3062 struct ieee80211_mgmt *mgmt, size_t len,
3063 s32 signal, gfp_t gfp);
3066 * cfg80211_inform_bss - inform cfg80211 of a new BSS
3068 * @wiphy: the wiphy reporting the BSS
3069 * @channel: The channel the frame was received on
3070 * @bssid: the BSSID of the BSS
3071 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3072 * @capability: the capability field sent by the peer
3073 * @beacon_interval: the beacon interval announced by the peer
3074 * @ie: additional IEs sent by the peer
3075 * @ielen: length of the additional IEs
3076 * @signal: the signal strength, type depends on the wiphy's signal_type
3077 * @gfp: context flags
3079 * This informs cfg80211 that BSS information was found and
3080 * the BSS should be updated/added.
3082 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3083 * Or %NULL on error.
3085 struct cfg80211_bss * __must_check
3086 cfg80211_inform_bss(struct wiphy *wiphy,
3087 struct ieee80211_channel *channel,
3088 const u8 *bssid, u64 tsf, u16 capability,
3089 u16 beacon_interval, const u8 *ie, size_t ielen,
3090 s32 signal, gfp_t gfp);
3092 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
3093 struct ieee80211_channel *channel,
3095 const u8 *ssid, size_t ssid_len,
3096 u16 capa_mask, u16 capa_val);
3097 static inline struct cfg80211_bss *
3098 cfg80211_get_ibss(struct wiphy *wiphy,
3099 struct ieee80211_channel *channel,
3100 const u8 *ssid, size_t ssid_len)
3102 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
3103 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
3106 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
3107 struct ieee80211_channel *channel,
3108 const u8 *meshid, size_t meshidlen,
3111 * cfg80211_ref_bss - reference BSS struct
3112 * @bss: the BSS struct to reference
3114 * Increments the refcount of the given BSS struct.
3116 void cfg80211_ref_bss(struct cfg80211_bss *bss);
3119 * cfg80211_put_bss - unref BSS struct
3120 * @bss: the BSS struct
3122 * Decrements the refcount of the given BSS struct.
3124 void cfg80211_put_bss(struct cfg80211_bss *bss);
3127 * cfg80211_unlink_bss - unlink BSS from internal data structures
3129 * @bss: the bss to remove
3131 * This function removes the given BSS from the internal data structures
3132 * thereby making it no longer show up in scan results etc. Use this
3133 * function when you detect a BSS is gone. Normally BSSes will also time
3134 * out, so it is not necessary to use this function at all.
3136 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
3139 * cfg80211_send_rx_auth - notification of processed authentication
3140 * @dev: network device
3141 * @buf: authentication frame (header + body)
3142 * @len: length of the frame data
3144 * This function is called whenever an authentication has been processed in
3145 * station mode. The driver is required to call either this function or
3146 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
3147 * call. This function may sleep.
3149 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
3152 * cfg80211_send_auth_timeout - notification of timed out authentication
3153 * @dev: network device
3154 * @addr: The MAC address of the device with which the authentication timed out
3156 * This function may sleep.
3158 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
3161 * cfg80211_send_rx_assoc - notification of processed association
3162 * @dev: network device
3163 * @bss: the BSS struct association was requested for, the struct reference
3164 * is owned by cfg80211 after this call
3165 * @buf: (re)association response frame (header + body)
3166 * @len: length of the frame data
3168 * This function is called whenever a (re)association response has been
3169 * processed in station mode. The driver is required to call either this
3170 * function or cfg80211_send_assoc_timeout() to indicate the result of
3171 * cfg80211_ops::assoc() call. This function may sleep.
3173 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
3174 const u8 *buf, size_t len);
3177 * cfg80211_send_assoc_timeout - notification of timed out association
3178 * @dev: network device
3179 * @addr: The MAC address of the device with which the association timed out
3181 * This function may sleep.
3183 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
3186 * cfg80211_send_deauth - notification of processed deauthentication
3187 * @dev: network device
3188 * @buf: deauthentication frame (header + body)
3189 * @len: length of the frame data
3191 * This function is called whenever deauthentication has been processed in
3192 * station mode. This includes both received deauthentication frames and
3193 * locally generated ones. This function may sleep.
3195 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
3198 * __cfg80211_send_deauth - notification of processed deauthentication
3199 * @dev: network device
3200 * @buf: deauthentication frame (header + body)
3201 * @len: length of the frame data
3203 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
3205 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
3208 * cfg80211_send_disassoc - notification of processed disassociation
3209 * @dev: network device
3210 * @buf: disassociation response frame (header + body)
3211 * @len: length of the frame data
3213 * This function is called whenever disassociation has been processed in
3214 * station mode. This includes both received disassociation frames and locally
3215 * generated ones. This function may sleep.
3217 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
3220 * __cfg80211_send_disassoc - notification of processed disassociation
3221 * @dev: network device
3222 * @buf: disassociation response frame (header + body)
3223 * @len: length of the frame data
3225 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
3227 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
3231 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
3232 * @dev: network device
3233 * @buf: deauthentication frame (header + body)
3234 * @len: length of the frame data
3236 * This function is called whenever a received Deauthentication frame has been
3237 * dropped in station mode because of MFP being used but the Deauthentication
3238 * frame was not protected. This function may sleep.
3240 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
3244 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
3245 * @dev: network device
3246 * @buf: disassociation frame (header + body)
3247 * @len: length of the frame data
3249 * This function is called whenever a received Disassociation frame has been
3250 * dropped in station mode because of MFP being used but the Disassociation
3251 * frame was not protected. This function may sleep.
3253 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
3257 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3258 * @dev: network device
3259 * @addr: The source MAC address of the frame
3260 * @key_type: The key type that the received frame used
3261 * @key_id: Key identifier (0..3). Can be -1 if missing.
3262 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3263 * @gfp: allocation flags
3265 * This function is called whenever the local MAC detects a MIC failure in a
3266 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3269 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
3270 enum nl80211_key_type key_type, int key_id,
3271 const u8 *tsc, gfp_t gfp);
3274 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3276 * @dev: network device
3277 * @bssid: the BSSID of the IBSS joined
3278 * @gfp: allocation flags
3280 * This function notifies cfg80211 that the device joined an IBSS or
3281 * switched to a different BSSID. Before this function can be called,
3282 * either a beacon has to have been received from the IBSS, or one of
3283 * the cfg80211_inform_bss{,_frame} functions must have been called
3284 * with the locally generated beacon -- this guarantees that there is
3285 * always a scan result for this IBSS. cfg80211 will handle the rest.
3287 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
3290 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3292 * @dev: network device
3293 * @macaddr: the MAC address of the new candidate
3294 * @ie: information elements advertised by the peer candidate
3295 * @ie_len: lenght of the information elements buffer
3296 * @gfp: allocation flags
3298 * This function notifies cfg80211 that the mesh peer candidate has been
3299 * detected, most likely via a beacon or, less likely, via a probe response.
3300 * cfg80211 then sends a notification to userspace.
3302 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
3303 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
3306 * DOC: RFkill integration
3308 * RFkill integration in cfg80211 is almost invisible to drivers,
3309 * as cfg80211 automatically registers an rfkill instance for each
3310 * wireless device it knows about. Soft kill is also translated
3311 * into disconnecting and turning all interfaces off, drivers are
3312 * expected to turn off the device when all interfaces are down.
3314 * However, devices may have a hard RFkill line, in which case they
3315 * also need to interact with the rfkill subsystem, via cfg80211.
3316 * They can do this with a few helper functions documented here.
3320 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3322 * @blocked: block status
3324 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
3327 * wiphy_rfkill_start_polling - start polling rfkill
3330 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
3333 * wiphy_rfkill_stop_polling - stop polling rfkill
3336 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
3338 #ifdef CONFIG_NL80211_TESTMODE
3342 * Test mode is a set of utility functions to allow drivers to
3343 * interact with driver-specific tools to aid, for instance,
3344 * factory programming.
3346 * This chapter describes how drivers interact with it, for more
3347 * information see the nl80211 book's chapter on it.
3351 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3353 * @approxlen: an upper bound of the length of the data that will
3354 * be put into the skb
3356 * This function allocates and pre-fills an skb for a reply to
3357 * the testmode command. Since it is intended for a reply, calling
3358 * it outside of the @testmode_cmd operation is invalid.
3360 * The returned skb is pre-filled with the wiphy index and set up in
3361 * a way that any data that is put into the skb (with skb_put(),
3362 * nla_put() or similar) will end up being within the
3363 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
3364 * with the skb is adding data for the corresponding userspace tool
3365 * which can then read that data out of the testdata attribute. You
3366 * must not modify the skb in any other way.
3368 * When done, call cfg80211_testmode_reply() with the skb and return
3369 * its error code as the result of the @testmode_cmd operation.
3371 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3373 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3377 * cfg80211_testmode_reply - send the reply skb
3378 * @skb: The skb, must have been allocated with
3379 * cfg80211_testmode_alloc_reply_skb()
3381 * Since calling this function will usually be the last thing
3382 * before returning from the @testmode_cmd you should return
3383 * the error code. Note that this function consumes the skb
3384 * regardless of the return value.
3386 * Return: An error code or 0 on success.
3388 int cfg80211_testmode_reply(struct sk_buff *skb);
3391 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3393 * @approxlen: an upper bound of the length of the data that will
3394 * be put into the skb
3395 * @gfp: allocation flags
3397 * This function allocates and pre-fills an skb for an event on the
3398 * testmode multicast group.
3400 * The returned skb is set up in the same way as with
3401 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
3402 * there, you should simply add data to it that will then end up in the
3403 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
3406 * When done filling the skb, call cfg80211_testmode_event() with the
3407 * skb to send the event.
3409 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3411 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3412 int approxlen, gfp_t gfp);
3415 * cfg80211_testmode_event - send the event
3416 * @skb: The skb, must have been allocated with
3417 * cfg80211_testmode_alloc_event_skb()
3418 * @gfp: allocation flags
3420 * This function sends the given @skb, which must have been allocated
3421 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3424 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
3426 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3427 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3429 #define CFG80211_TESTMODE_CMD(cmd)
3430 #define CFG80211_TESTMODE_DUMP(cmd)
3434 * cfg80211_connect_result - notify cfg80211 of connection result
3436 * @dev: network device
3437 * @bssid: the BSSID of the AP
3438 * @req_ie: association request IEs (maybe be %NULL)
3439 * @req_ie_len: association request IEs length
3440 * @resp_ie: association response IEs (may be %NULL)
3441 * @resp_ie_len: assoc response IEs length
3442 * @status: status code, 0 for successful connection, use
3443 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3444 * the real status code for failures.
3445 * @gfp: allocation flags
3447 * It should be called by the underlying driver whenever connect() has
3450 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
3451 const u8 *req_ie, size_t req_ie_len,
3452 const u8 *resp_ie, size_t resp_ie_len,
3453 u16 status, gfp_t gfp);
3456 * cfg80211_roamed - notify cfg80211 of roaming
3458 * @dev: network device
3459 * @channel: the channel of the new AP
3460 * @bssid: the BSSID of the new AP
3461 * @req_ie: association request IEs (maybe be %NULL)
3462 * @req_ie_len: association request IEs length
3463 * @resp_ie: association response IEs (may be %NULL)
3464 * @resp_ie_len: assoc response IEs length
3465 * @gfp: allocation flags
3467 * It should be called by the underlying driver whenever it roamed
3468 * from one AP to another while connected.
3470 void cfg80211_roamed(struct net_device *dev,
3471 struct ieee80211_channel *channel,
3473 const u8 *req_ie, size_t req_ie_len,
3474 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3477 * cfg80211_roamed_bss - notify cfg80211 of roaming
3479 * @dev: network device
3480 * @bss: entry of bss to which STA got roamed
3481 * @req_ie: association request IEs (maybe be %NULL)
3482 * @req_ie_len: association request IEs length
3483 * @resp_ie: association response IEs (may be %NULL)
3484 * @resp_ie_len: assoc response IEs length
3485 * @gfp: allocation flags
3487 * This is just a wrapper to notify cfg80211 of roaming event with driver
3488 * passing bss to avoid a race in timeout of the bss entry. It should be
3489 * called by the underlying driver whenever it roamed from one AP to another
3490 * while connected. Drivers which have roaming implemented in firmware
3491 * may use this function to avoid a race in bss entry timeout where the bss
3492 * entry of the new AP is seen in the driver, but gets timed out by the time
3493 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3494 * rdev->event_work. In case of any failures, the reference is released
3495 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3496 * it will be released while diconneting from the current bss.
3498 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
3499 const u8 *req_ie, size_t req_ie_len,
3500 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3503 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3505 * @dev: network device
3506 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3507 * @ie_len: length of IEs
3508 * @reason: reason code for the disconnection, set it to 0 if unknown
3509 * @gfp: allocation flags
3511 * After it calls this function, the driver should enter an idle state
3512 * and not try to connect to any AP any more.
3514 void cfg80211_disconnected(struct net_device *dev, u16 reason,
3515 u8 *ie, size_t ie_len, gfp_t gfp);
3518 * cfg80211_ready_on_channel - notification of remain_on_channel start
3519 * @wdev: wireless device
3520 * @cookie: the request cookie
3521 * @chan: The current channel (from remain_on_channel request)
3522 * @duration: Duration in milliseconds that the driver intents to remain on the
3524 * @gfp: allocation flags
3526 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
3527 struct ieee80211_channel *chan,
3528 unsigned int duration, gfp_t gfp);
3531 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3532 * @wdev: wireless device
3533 * @cookie: the request cookie
3534 * @chan: The current channel (from remain_on_channel request)
3535 * @gfp: allocation flags
3537 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
3538 struct ieee80211_channel *chan,
3543 * cfg80211_new_sta - notify userspace about station
3546 * @mac_addr: the station's address
3547 * @sinfo: the station information
3548 * @gfp: allocation flags
3550 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
3551 struct station_info *sinfo, gfp_t gfp);
3554 * cfg80211_del_sta - notify userspace about deletion of a station
3557 * @mac_addr: the station's address
3558 * @gfp: allocation flags
3560 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
3563 * cfg80211_conn_failed - connection request failed notification
3566 * @mac_addr: the station's address
3567 * @reason: the reason for connection failure
3568 * @gfp: allocation flags
3570 * Whenever a station tries to connect to an AP and if the station
3571 * could not connect to the AP as the AP has rejected the connection
3572 * for some reasons, this function is called.
3574 * The reason for connection failure can be any of the value from
3575 * nl80211_connect_failed_reason enum
3577 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
3578 enum nl80211_connect_failed_reason reason,
3582 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3583 * @wdev: wireless device receiving the frame
3584 * @freq: Frequency on which the frame was received in MHz
3585 * @sig_dbm: signal strength in mBm, or 0 if unknown
3586 * @buf: Management frame (header + body)
3587 * @len: length of the frame data
3588 * @gfp: context flags
3590 * This function is called whenever an Action frame is received for a station
3591 * mode interface, but is not processed in kernel.
3593 * Return: %true if a user space application has registered for this frame.
3594 * For action frames, that makes it responsible for rejecting unrecognized
3595 * action frames; %false otherwise, in which case for action frames the
3596 * driver is responsible for rejecting the frame.
3598 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
3599 const u8 *buf, size_t len, gfp_t gfp);
3602 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3603 * @wdev: wireless device receiving the frame
3604 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3605 * @buf: Management frame (header + body)
3606 * @len: length of the frame data
3607 * @ack: Whether frame was acknowledged
3608 * @gfp: context flags
3610 * This function is called whenever a management frame was requested to be
3611 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3612 * transmission attempt.
3614 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
3615 const u8 *buf, size_t len, bool ack, gfp_t gfp);
3619 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3620 * @dev: network device
3621 * @rssi_event: the triggered RSSI event
3622 * @gfp: context flags
3624 * This function is called when a configured connection quality monitoring
3625 * rssi threshold reached event occurs.
3627 void cfg80211_cqm_rssi_notify(struct net_device *dev,
3628 enum nl80211_cqm_rssi_threshold_event rssi_event,
3632 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3633 * @dev: network device
3634 * @peer: peer's MAC address
3635 * @num_packets: how many packets were lost -- should be a fixed threshold
3636 * but probably no less than maybe 50, or maybe a throughput dependent
3637 * threshold (to account for temporary interference)
3638 * @gfp: context flags
3640 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
3641 const u8 *peer, u32 num_packets, gfp_t gfp);
3644 * cfg80211_cqm_txe_notify - TX error rate event
3645 * @dev: network device
3646 * @peer: peer's MAC address
3647 * @num_packets: how many packets were lost
3648 * @rate: % of packets which failed transmission
3649 * @intvl: interval (in s) over which the TX failure threshold was breached.
3650 * @gfp: context flags
3652 * Notify userspace when configured % TX failures over number of packets in a
3653 * given interval is exceeded.
3655 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
3656 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
3659 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3660 * @dev: network device
3661 * @bssid: BSSID of AP (to avoid races)
3662 * @replay_ctr: new replay counter
3663 * @gfp: allocation flags
3665 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
3666 const u8 *replay_ctr, gfp_t gfp);
3669 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3670 * @dev: network device
3671 * @index: candidate index (the smaller the index, the higher the priority)
3672 * @bssid: BSSID of AP
3673 * @preauth: Whether AP advertises support for RSN pre-authentication
3674 * @gfp: allocation flags
3676 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
3677 const u8 *bssid, bool preauth, gfp_t gfp);
3680 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3681 * @dev: The device the frame matched to
3682 * @addr: the transmitter address
3683 * @gfp: context flags
3685 * This function is used in AP mode (only!) to inform userspace that
3686 * a spurious class 3 frame was received, to be able to deauth the
3688 * Return: %true if the frame was passed to userspace (or this failed
3689 * for a reason other than not having a subscription.)
3691 bool cfg80211_rx_spurious_frame(struct net_device *dev,
3692 const u8 *addr, gfp_t gfp);
3695 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3696 * @dev: The device the frame matched to
3697 * @addr: the transmitter address
3698 * @gfp: context flags
3700 * This function is used in AP mode (only!) to inform userspace that
3701 * an associated station sent a 4addr frame but that wasn't expected.
3702 * It is allowed and desirable to send this event only once for each
3703 * station to avoid event flooding.
3704 * Return: %true if the frame was passed to userspace (or this failed
3705 * for a reason other than not having a subscription.)
3707 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
3708 const u8 *addr, gfp_t gfp);
3711 * cfg80211_probe_status - notify userspace about probe status
3712 * @dev: the device the probe was sent on
3713 * @addr: the address of the peer
3714 * @cookie: the cookie filled in @probe_client previously
3715 * @acked: indicates whether probe was acked or not
3716 * @gfp: allocation flags
3718 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
3719 u64 cookie, bool acked, gfp_t gfp);
3722 * cfg80211_report_obss_beacon - report beacon from other APs
3723 * @wiphy: The wiphy that received the beacon
3725 * @len: length of the frame
3726 * @freq: frequency the frame was received on
3727 * @sig_dbm: signal strength in mBm, or 0 if unknown
3729 * Use this function to report to userspace when a beacon was
3730 * received. It is not useful to call this when there is no
3731 * netdev that is in AP/GO mode.
3733 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
3734 const u8 *frame, size_t len,
3735 int freq, int sig_dbm);
3738 * cfg80211_reg_can_beacon - check if beaconing is allowed
3740 * @chandef: the channel definition
3742 * Return: %true if there is no secondary channel or the secondary channel(s)
3743 * can be used for beaconing (i.e. is not a radar channel etc.)
3745 bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
3746 struct cfg80211_chan_def *chandef);
3749 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3750 * @dev: the device which switched channels
3751 * @chandef: the new channel definition
3753 * Acquires wdev_lock, so must only be called from sleepable driver context!
3755 void cfg80211_ch_switch_notify(struct net_device *dev,
3756 struct cfg80211_chan_def *chandef);
3759 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
3760 * @dev: the device on which the operation is requested
3761 * @peer: the MAC address of the peer device
3762 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
3763 * NL80211_TDLS_TEARDOWN)
3764 * @reason_code: the reason code for teardown request
3765 * @gfp: allocation flags
3767 * This function is used to request userspace to perform TDLS operation that
3768 * requires knowledge of keys, i.e., link setup or teardown when the AP
3769 * connection uses encryption. This is optional mechanism for the driver to use
3770 * if it can automatically determine when a TDLS link could be useful (e.g.,
3771 * based on traffic and signal strength for a peer).
3773 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
3774 enum nl80211_tdls_operation oper,
3775 u16 reason_code, gfp_t gfp);
3778 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3779 * @rate: given rate_info to calculate bitrate from
3781 * return 0 if MCS index >= 32
3783 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
3786 * cfg80211_unregister_wdev - remove the given wdev
3787 * @wdev: struct wireless_dev to remove
3789 * Call this function only for wdevs that have no netdev assigned,
3790 * e.g. P2P Devices. It removes the device from the list so that
3791 * it can no longer be used. It is necessary to call this function
3792 * even when cfg80211 requests the removal of the interface by
3793 * calling the del_virtual_intf() callback. The function must also
3794 * be called when the driver wishes to unregister the wdev, e.g.
3795 * when the device is unbound from the driver.
3797 * Requires the RTNL to be held.
3799 void cfg80211_unregister_wdev(struct wireless_dev *wdev);
3802 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
3803 * @ies: the input IE buffer
3804 * @len: the input length
3805 * @attr: the attribute ID to find
3806 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
3807 * if the function is only called to get the needed buffer size
3808 * @bufsize: size of the output buffer
3810 * The function finds a given P2P attribute in the (vendor) IEs and
3811 * copies its contents to the given buffer.
3813 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
3814 * malformed or the attribute can't be found (respectively), or the
3815 * length of the found attribute (which can be zero).
3817 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
3818 enum ieee80211_p2p_attr_id attr,
3819 u8 *buf, unsigned int bufsize);
3821 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3823 /* wiphy_printk helpers, similar to dev_printk */
3825 #define wiphy_printk(level, wiphy, format, args...) \
3826 dev_printk(level, &(wiphy)->dev, format, ##args)
3827 #define wiphy_emerg(wiphy, format, args...) \
3828 dev_emerg(&(wiphy)->dev, format, ##args)
3829 #define wiphy_alert(wiphy, format, args...) \
3830 dev_alert(&(wiphy)->dev, format, ##args)
3831 #define wiphy_crit(wiphy, format, args...) \
3832 dev_crit(&(wiphy)->dev, format, ##args)
3833 #define wiphy_err(wiphy, format, args...) \
3834 dev_err(&(wiphy)->dev, format, ##args)
3835 #define wiphy_warn(wiphy, format, args...) \
3836 dev_warn(&(wiphy)->dev, format, ##args)
3837 #define wiphy_notice(wiphy, format, args...) \
3838 dev_notice(&(wiphy)->dev, format, ##args)
3839 #define wiphy_info(wiphy, format, args...) \
3840 dev_info(&(wiphy)->dev, format, ##args)
3842 #define wiphy_debug(wiphy, format, args...) \
3843 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3845 #define wiphy_dbg(wiphy, format, args...) \
3846 dev_dbg(&(wiphy)->dev, format, ##args)
3848 #if defined(VERBOSE_DEBUG)
3849 #define wiphy_vdbg wiphy_dbg
3851 #define wiphy_vdbg(wiphy, format, args...) \
3854 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3860 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3861 * of using a WARN/WARN_ON to get the message out, including the
3862 * file/line information and a backtrace.
3864 #define wiphy_WARN(wiphy, format, args...) \
3865 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3867 #endif /* __NET_CFG80211_H */