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>
7 * Copyright 2013-2014 Intel Mobile Communications GmbH
8 * Copyright 2015-2017 Intel Deutschland GmbH
9 * Copyright (C) 2018 Intel Corporation
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/netdevice.h>
17 #include <linux/debugfs.h>
18 #include <linux/list.h>
19 #include <linux/bug.h>
20 #include <linux/netlink.h>
21 #include <linux/skbuff.h>
22 #include <linux/nl80211.h>
23 #include <linux/if_ether.h>
24 #include <linux/ieee80211.h>
25 #include <linux/net.h>
26 #include <net/regulatory.h>
31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
32 * userspace and drivers, and offers some utility functionality associated
33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
34 * by all modern wireless drivers in Linux, so that they offer a consistent
35 * API through nl80211. For backward compatibility, cfg80211 also offers
36 * wireless extensions to userspace, but hides them from drivers completely.
38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
44 * DOC: Device registration
46 * In order for a driver to use cfg80211, it must register the hardware device
47 * with cfg80211. This happens through a number of hardware capability structs
50 * The fundamental structure for each device is the 'wiphy', of which each
51 * instance describes a physical wireless device connected to the system. Each
52 * such wiphy can have zero, one, or many virtual interfaces associated with
53 * it, which need to be identified as such by pointing the network interface's
54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
55 * the wireless part of the interface, normally this struct is embedded in the
56 * network interface's private data area. Drivers can optionally allow creating
57 * or destroying virtual interfaces on the fly, but without at least one or the
58 * ability to create some the wireless device isn't useful.
60 * Each wiphy structure contains device capability information, and also has
61 * a pointer to the various operations the driver offers. The definitions and
62 * structures here describe these capabilities in detail.
68 * wireless hardware capability structures
72 * enum ieee80211_channel_flags - channel flags
74 * Channel flags set by the regulatory control code.
76 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
77 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
78 * sending probe requests or beaconing.
79 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
80 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
82 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
84 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
85 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
86 * this flag indicates that an 80 MHz channel cannot use this
87 * channel as the control or any of the secondary channels.
88 * This may be due to the driver or due to regulatory bandwidth
90 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
91 * this flag indicates that an 160 MHz channel cannot use this
92 * channel as the control or any of the secondary channels.
93 * This may be due to the driver or due to regulatory bandwidth
95 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
96 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
97 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
99 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
103 enum ieee80211_channel_flags {
104 IEEE80211_CHAN_DISABLED = 1<<0,
105 IEEE80211_CHAN_NO_IR = 1<<1,
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,
111 IEEE80211_CHAN_NO_80MHZ = 1<<7,
112 IEEE80211_CHAN_NO_160MHZ = 1<<8,
113 IEEE80211_CHAN_INDOOR_ONLY = 1<<9,
114 IEEE80211_CHAN_IR_CONCURRENT = 1<<10,
115 IEEE80211_CHAN_NO_20MHZ = 1<<11,
116 IEEE80211_CHAN_NO_10MHZ = 1<<12,
119 #define IEEE80211_CHAN_NO_HT40 \
120 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
122 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
123 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
126 * struct ieee80211_channel - channel definition
128 * This structure describes a single channel for use
131 * @center_freq: center frequency in MHz
132 * @hw_value: hardware-specific value for the channel
133 * @flags: channel flags from &enum ieee80211_channel_flags.
134 * @orig_flags: channel flags at registration time, used by regulatory
135 * code to support devices with additional restrictions
136 * @band: band this channel belongs to.
137 * @max_antenna_gain: maximum antenna gain in dBi
138 * @max_power: maximum transmission power (in dBm)
139 * @max_reg_power: maximum regulatory transmission power (in dBm)
140 * @beacon_found: helper to regulatory code to indicate when a beacon
141 * has been found on this channel. Use regulatory_hint_found_beacon()
142 * to enable this, this is useful only on 5 GHz band.
143 * @orig_mag: internal use
144 * @orig_mpwr: internal use
145 * @dfs_state: current state of this channel. Only relevant if radar is required
147 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
148 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
150 struct ieee80211_channel {
151 enum nl80211_band band;
155 int max_antenna_gain;
160 int orig_mag, orig_mpwr;
161 enum nl80211_dfs_state dfs_state;
162 unsigned long dfs_state_entered;
163 unsigned int dfs_cac_ms;
167 * enum ieee80211_rate_flags - rate flags
169 * Hardware/specification flags for rates. These are structured
170 * in a way that allows using the same bitrate structure for
171 * different bands/PHY modes.
173 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
174 * preamble on this bitrate; only relevant in 2.4GHz band and
176 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
177 * when used with 802.11a (on the 5 GHz band); filled by the
178 * core code when registering the wiphy.
179 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
180 * when used with 802.11b (on the 2.4 GHz band); filled by the
181 * core code when registering the wiphy.
182 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
183 * when used with 802.11g (on the 2.4 GHz band); filled by the
184 * core code when registering the wiphy.
185 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
186 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
187 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
189 enum ieee80211_rate_flags {
190 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
191 IEEE80211_RATE_MANDATORY_A = 1<<1,
192 IEEE80211_RATE_MANDATORY_B = 1<<2,
193 IEEE80211_RATE_MANDATORY_G = 1<<3,
194 IEEE80211_RATE_ERP_G = 1<<4,
195 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5,
196 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6,
200 * enum ieee80211_bss_type - BSS type filter
202 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
203 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS
204 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS
205 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
206 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
208 enum ieee80211_bss_type {
209 IEEE80211_BSS_TYPE_ESS,
210 IEEE80211_BSS_TYPE_PBSS,
211 IEEE80211_BSS_TYPE_IBSS,
212 IEEE80211_BSS_TYPE_MBSS,
213 IEEE80211_BSS_TYPE_ANY
217 * enum ieee80211_privacy - BSS privacy filter
219 * @IEEE80211_PRIVACY_ON: privacy bit set
220 * @IEEE80211_PRIVACY_OFF: privacy bit clear
221 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
223 enum ieee80211_privacy {
224 IEEE80211_PRIVACY_ON,
225 IEEE80211_PRIVACY_OFF,
226 IEEE80211_PRIVACY_ANY
229 #define IEEE80211_PRIVACY(x) \
230 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
233 * struct ieee80211_rate - bitrate definition
235 * This structure describes a bitrate that an 802.11 PHY can
236 * operate with. The two values @hw_value and @hw_value_short
237 * are only for driver use when pointers to this structure are
240 * @flags: rate-specific flags
241 * @bitrate: bitrate in units of 100 Kbps
242 * @hw_value: driver/hardware value for this rate
243 * @hw_value_short: driver/hardware value for this rate when
244 * short preamble is used
246 struct ieee80211_rate {
249 u16 hw_value, hw_value_short;
253 * struct ieee80211_sta_ht_cap - STA's HT capabilities
255 * This structure describes most essential parameters needed
256 * to describe 802.11n HT capabilities for an STA.
258 * @ht_supported: is HT supported by the STA
259 * @cap: HT capabilities map as described in 802.11n spec
260 * @ampdu_factor: Maximum A-MPDU length factor
261 * @ampdu_density: Minimum A-MPDU spacing
262 * @mcs: Supported MCS rates
264 struct ieee80211_sta_ht_cap {
265 u16 cap; /* use IEEE80211_HT_CAP_ */
269 struct ieee80211_mcs_info mcs;
273 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
275 * This structure describes most essential parameters needed
276 * to describe 802.11ac VHT capabilities for an STA.
278 * @vht_supported: is VHT supported by the STA
279 * @cap: VHT capabilities map as described in 802.11ac spec
280 * @vht_mcs: Supported VHT MCS rates
282 struct ieee80211_sta_vht_cap {
284 u32 cap; /* use IEEE80211_VHT_CAP_ */
285 struct ieee80211_vht_mcs_info vht_mcs;
289 * struct ieee80211_supported_band - frequency band definition
291 * This structure describes a frequency band a wiphy
292 * is able to operate in.
294 * @channels: Array of channels the hardware can operate in
296 * @band: the band this structure represents
297 * @n_channels: Number of channels in @channels
298 * @bitrates: Array of bitrates the hardware can operate with
299 * in this band. Must be sorted to give a valid "supported
300 * rates" IE, i.e. CCK rates first, then OFDM.
301 * @n_bitrates: Number of bitrates in @bitrates
302 * @ht_cap: HT capabilities in this band
303 * @vht_cap: VHT capabilities in this band
305 struct ieee80211_supported_band {
306 struct ieee80211_channel *channels;
307 struct ieee80211_rate *bitrates;
308 enum nl80211_band band;
311 struct ieee80211_sta_ht_cap ht_cap;
312 struct ieee80211_sta_vht_cap vht_cap;
316 * wiphy_read_of_freq_limits - read frequency limits from device tree
318 * @wiphy: the wireless device to get extra limits for
320 * Some devices may have extra limitations specified in DT. This may be useful
321 * for chipsets that normally support more bands but are limited due to board
322 * design (e.g. by antennas or external power amplifier).
324 * This function reads info from DT and uses it to *modify* channels (disable
325 * unavailable ones). It's usually a *bad* idea to use it in drivers with
326 * shared channel data as DT limitations are device specific. You should make
327 * sure to call it only if channels in wiphy are copied and can be modified
328 * without affecting other devices.
330 * As this function access device node it has to be called after set_wiphy_dev.
331 * It also modifies channels so they have to be set first.
332 * If using this helper, call it before wiphy_register().
335 void wiphy_read_of_freq_limits(struct wiphy *wiphy);
336 #else /* CONFIG_OF */
337 static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy)
340 #endif /* !CONFIG_OF */
344 * Wireless hardware/device configuration structures and methods
348 * DOC: Actions and configuration
350 * Each wireless device and each virtual interface offer a set of configuration
351 * operations and other actions that are invoked by userspace. Each of these
352 * actions is described in the operations structure, and the parameters these
353 * operations use are described separately.
355 * Additionally, some operations are asynchronous and expect to get status
356 * information via some functions that drivers need to call.
358 * Scanning and BSS list handling with its associated functionality is described
359 * in a separate chapter.
362 #define VHT_MUMIMO_GROUPS_DATA_LEN (WLAN_MEMBERSHIP_LEN +\
363 WLAN_USER_POSITION_LEN)
366 * struct vif_params - describes virtual interface parameters
367 * @flags: monitor interface flags, unchanged if 0, otherwise
368 * %MONITOR_FLAG_CHANGED will be set
369 * @use_4addr: use 4-address frames
370 * @macaddr: address to use for this virtual interface.
371 * If this parameter is set to zero address the driver may
372 * determine the address as needed.
373 * This feature is only fully supported by drivers that enable the
374 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
375 ** only p2p devices with specified MAC.
376 * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets
377 * belonging to that MU-MIMO groupID; %NULL if not changed
378 * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring
379 * MU-MIMO packets going to the specified station; %NULL if not changed
384 u8 macaddr[ETH_ALEN];
385 const u8 *vht_mumimo_groups;
386 const u8 *vht_mumimo_follow_addr;
390 * struct key_params - key information
392 * Information about a key
395 * @key_len: length of key material
396 * @cipher: cipher suite selector
397 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
398 * with the get_key() callback, must be in little endian,
399 * length given by @seq_len.
400 * @seq_len: length of @seq.
411 * struct cfg80211_chan_def - channel definition
412 * @chan: the (control) channel
413 * @width: channel width
414 * @center_freq1: center frequency of first segment
415 * @center_freq2: center frequency of second segment
416 * (only with 80+80 MHz)
418 struct cfg80211_chan_def {
419 struct ieee80211_channel *chan;
420 enum nl80211_chan_width width;
426 * cfg80211_get_chandef_type - return old channel type from chandef
427 * @chandef: the channel definition
429 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
430 * chandef, which must have a bandwidth allowing this conversion.
432 static inline enum nl80211_channel_type
433 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
435 switch (chandef->width) {
436 case NL80211_CHAN_WIDTH_20_NOHT:
437 return NL80211_CHAN_NO_HT;
438 case NL80211_CHAN_WIDTH_20:
439 return NL80211_CHAN_HT20;
440 case NL80211_CHAN_WIDTH_40:
441 if (chandef->center_freq1 > chandef->chan->center_freq)
442 return NL80211_CHAN_HT40PLUS;
443 return NL80211_CHAN_HT40MINUS;
446 return NL80211_CHAN_NO_HT;
451 * cfg80211_chandef_create - create channel definition using channel type
452 * @chandef: the channel definition struct to fill
453 * @channel: the control channel
454 * @chantype: the channel type
456 * Given a channel type, create a channel definition.
458 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
459 struct ieee80211_channel *channel,
460 enum nl80211_channel_type chantype);
463 * cfg80211_chandef_identical - check if two channel definitions are identical
464 * @chandef1: first channel definition
465 * @chandef2: second channel definition
467 * Return: %true if the channels defined by the channel definitions are
468 * identical, %false otherwise.
471 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
472 const struct cfg80211_chan_def *chandef2)
474 return (chandef1->chan == chandef2->chan &&
475 chandef1->width == chandef2->width &&
476 chandef1->center_freq1 == chandef2->center_freq1 &&
477 chandef1->center_freq2 == chandef2->center_freq2);
481 * cfg80211_chandef_compatible - check if two channel definitions are compatible
482 * @chandef1: first channel definition
483 * @chandef2: second channel definition
485 * Return: %NULL if the given channel definitions are incompatible,
486 * chandef1 or chandef2 otherwise.
488 const struct cfg80211_chan_def *
489 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
490 const struct cfg80211_chan_def *chandef2);
493 * cfg80211_chandef_valid - check if a channel definition is valid
494 * @chandef: the channel definition to check
495 * Return: %true if the channel definition is valid. %false otherwise.
497 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
500 * cfg80211_chandef_usable - check if secondary channels can be used
501 * @wiphy: the wiphy to validate against
502 * @chandef: the channel definition to check
503 * @prohibited_flags: the regulatory channel flags that must not be set
504 * Return: %true if secondary channels are usable. %false otherwise.
506 bool cfg80211_chandef_usable(struct wiphy *wiphy,
507 const struct cfg80211_chan_def *chandef,
508 u32 prohibited_flags);
511 * cfg80211_chandef_dfs_required - checks if radar detection is required
512 * @wiphy: the wiphy to validate against
513 * @chandef: the channel definition to check
514 * @iftype: the interface type as specified in &enum nl80211_iftype
516 * 1 if radar detection is required, 0 if it is not, < 0 on error
518 int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
519 const struct cfg80211_chan_def *chandef,
520 enum nl80211_iftype iftype);
523 * ieee80211_chandef_rate_flags - returns rate flags for a channel
525 * In some channel types, not all rates may be used - for example CCK
526 * rates may not be used in 5/10 MHz channels.
528 * @chandef: channel definition for the channel
530 * Returns: rate flags which apply for this channel
532 static inline enum ieee80211_rate_flags
533 ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
535 switch (chandef->width) {
536 case NL80211_CHAN_WIDTH_5:
537 return IEEE80211_RATE_SUPPORTS_5MHZ;
538 case NL80211_CHAN_WIDTH_10:
539 return IEEE80211_RATE_SUPPORTS_10MHZ;
547 * ieee80211_chandef_max_power - maximum transmission power for the chandef
549 * In some regulations, the transmit power may depend on the configured channel
550 * bandwidth which may be defined as dBm/MHz. This function returns the actual
551 * max_power for non-standard (20 MHz) channels.
553 * @chandef: channel definition for the channel
555 * Returns: maximum allowed transmission power in dBm for the chandef
558 ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef)
560 switch (chandef->width) {
561 case NL80211_CHAN_WIDTH_5:
562 return min(chandef->chan->max_reg_power - 6,
563 chandef->chan->max_power);
564 case NL80211_CHAN_WIDTH_10:
565 return min(chandef->chan->max_reg_power - 3,
566 chandef->chan->max_power);
570 return chandef->chan->max_power;
574 * enum survey_info_flags - survey information flags
576 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
577 * @SURVEY_INFO_IN_USE: channel is currently being used
578 * @SURVEY_INFO_TIME: active time (in ms) was filled in
579 * @SURVEY_INFO_TIME_BUSY: busy time was filled in
580 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in
581 * @SURVEY_INFO_TIME_RX: receive time was filled in
582 * @SURVEY_INFO_TIME_TX: transmit time was filled in
583 * @SURVEY_INFO_TIME_SCAN: scan time was filled in
585 * Used by the driver to indicate which info in &struct survey_info
586 * it has filled in during the get_survey().
588 enum survey_info_flags {
589 SURVEY_INFO_NOISE_DBM = BIT(0),
590 SURVEY_INFO_IN_USE = BIT(1),
591 SURVEY_INFO_TIME = BIT(2),
592 SURVEY_INFO_TIME_BUSY = BIT(3),
593 SURVEY_INFO_TIME_EXT_BUSY = BIT(4),
594 SURVEY_INFO_TIME_RX = BIT(5),
595 SURVEY_INFO_TIME_TX = BIT(6),
596 SURVEY_INFO_TIME_SCAN = BIT(7),
600 * struct survey_info - channel survey response
602 * @channel: the channel this survey record reports, may be %NULL for a single
603 * record to report global statistics
604 * @filled: bitflag of flags from &enum survey_info_flags
605 * @noise: channel noise in dBm. This and all following fields are
607 * @time: amount of time in ms the radio was turn on (on the channel)
608 * @time_busy: amount of time the primary channel was sensed busy
609 * @time_ext_busy: amount of time the extension channel was sensed busy
610 * @time_rx: amount of time the radio spent receiving data
611 * @time_tx: amount of time the radio spent transmitting data
612 * @time_scan: amount of time the radio spent for scanning
614 * Used by dump_survey() to report back per-channel survey information.
616 * This structure can later be expanded with things like
617 * channel duty cycle etc.
620 struct ieee80211_channel *channel;
631 #define CFG80211_MAX_WEP_KEYS 4
634 * struct cfg80211_crypto_settings - Crypto settings
635 * @wpa_versions: indicates which, if any, WPA versions are enabled
636 * (from enum nl80211_wpa_versions)
637 * @cipher_group: group key cipher suite (or 0 if unset)
638 * @n_ciphers_pairwise: number of AP supported unicast ciphers
639 * @ciphers_pairwise: unicast key cipher suites
640 * @n_akm_suites: number of AKM suites
641 * @akm_suites: AKM suites
642 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
643 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
644 * required to assume that the port is unauthorized until authorized by
645 * user space. Otherwise, port is marked authorized by default.
646 * @control_port_ethertype: the control port protocol that should be
647 * allowed through even on unauthorized ports
648 * @control_port_no_encrypt: TRUE to prevent encryption of control port
650 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
651 * port frames over NL80211 instead of the network interface.
652 * @wep_keys: static WEP keys, if not NULL points to an array of
653 * CFG80211_MAX_WEP_KEYS WEP keys
654 * @wep_tx_key: key index (0..3) of the default TX static WEP key
655 * @psk: PSK (for devices supporting 4-way-handshake offload)
657 struct cfg80211_crypto_settings {
660 int n_ciphers_pairwise;
661 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
663 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
665 __be16 control_port_ethertype;
666 bool control_port_no_encrypt;
667 bool control_port_over_nl80211;
668 struct key_params *wep_keys;
674 * struct cfg80211_beacon_data - beacon data
675 * @head: head portion of beacon (before TIM IE)
676 * or %NULL if not changed
677 * @tail: tail portion of beacon (after TIM IE)
678 * or %NULL if not changed
679 * @head_len: length of @head
680 * @tail_len: length of @tail
681 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
682 * @beacon_ies_len: length of beacon_ies in octets
683 * @proberesp_ies: extra information element(s) to add into Probe Response
685 * @proberesp_ies_len: length of proberesp_ies in octets
686 * @assocresp_ies: extra information element(s) to add into (Re)Association
687 * Response frames or %NULL
688 * @assocresp_ies_len: length of assocresp_ies in octets
689 * @probe_resp_len: length of probe response template (@probe_resp)
690 * @probe_resp: probe response template (AP mode only)
692 struct cfg80211_beacon_data {
693 const u8 *head, *tail;
694 const u8 *beacon_ies;
695 const u8 *proberesp_ies;
696 const u8 *assocresp_ies;
697 const u8 *probe_resp;
699 size_t head_len, tail_len;
700 size_t beacon_ies_len;
701 size_t proberesp_ies_len;
702 size_t assocresp_ies_len;
703 size_t probe_resp_len;
711 * struct cfg80211_acl_data - Access control list data
713 * @acl_policy: ACL policy to be applied on the station's
714 * entry specified by mac_addr
715 * @n_acl_entries: Number of MAC address entries passed
716 * @mac_addrs: List of MAC addresses of stations to be used for ACL
718 struct cfg80211_acl_data {
719 enum nl80211_acl_policy acl_policy;
723 struct mac_address mac_addrs[];
727 * cfg80211_bitrate_mask - masks for bitrate control
729 struct cfg80211_bitrate_mask {
732 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN];
733 u16 vht_mcs[NL80211_VHT_NSS_MAX];
734 enum nl80211_txrate_gi gi;
735 } control[NUM_NL80211_BANDS];
739 * struct cfg80211_ap_settings - AP configuration
741 * Used to configure an AP interface.
743 * @chandef: defines the channel to use
744 * @beacon: beacon data
745 * @beacon_interval: beacon interval
746 * @dtim_period: DTIM period
747 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
749 * @ssid_len: length of @ssid
750 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
751 * @crypto: crypto settings
752 * @privacy: the BSS uses privacy
753 * @auth_type: Authentication type (algorithm)
754 * @smps_mode: SMPS mode
755 * @inactivity_timeout: time in seconds to determine station's inactivity.
756 * @p2p_ctwindow: P2P CT Window
757 * @p2p_opp_ps: P2P opportunistic PS
758 * @acl: ACL configuration used by the drivers which has support for
759 * MAC address based access control
760 * @pbss: If set, start as a PCP instead of AP. Relevant for DMG
762 * @beacon_rate: bitrate to be used for beacons
763 * @ht_cap: HT capabilities (or %NULL if HT isn't enabled)
764 * @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled)
765 * @ht_required: stations must support HT
766 * @vht_required: stations must support VHT
768 struct cfg80211_ap_settings {
769 struct cfg80211_chan_def chandef;
771 struct cfg80211_beacon_data beacon;
773 int beacon_interval, dtim_period;
776 enum nl80211_hidden_ssid hidden_ssid;
777 struct cfg80211_crypto_settings crypto;
779 enum nl80211_auth_type auth_type;
780 enum nl80211_smps_mode smps_mode;
781 int inactivity_timeout;
784 const struct cfg80211_acl_data *acl;
786 struct cfg80211_bitrate_mask beacon_rate;
788 const struct ieee80211_ht_cap *ht_cap;
789 const struct ieee80211_vht_cap *vht_cap;
790 bool ht_required, vht_required;
794 * struct cfg80211_csa_settings - channel switch settings
796 * Used for channel switch
798 * @chandef: defines the channel to use after the switch
799 * @beacon_csa: beacon data while performing the switch
800 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
801 * @counter_offsets_presp: offsets of the counters within the probe response
802 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
803 * @n_counter_offsets_presp: number of csa counters in the probe response
804 * @beacon_after: beacon data to be used on the new channel
805 * @radar_required: whether radar detection is required on the new channel
806 * @block_tx: whether transmissions should be blocked while changing
807 * @count: number of beacons until switch
809 struct cfg80211_csa_settings {
810 struct cfg80211_chan_def chandef;
811 struct cfg80211_beacon_data beacon_csa;
812 const u16 *counter_offsets_beacon;
813 const u16 *counter_offsets_presp;
814 unsigned int n_counter_offsets_beacon;
815 unsigned int n_counter_offsets_presp;
816 struct cfg80211_beacon_data beacon_after;
822 #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
825 * struct iface_combination_params - input parameters for interface combinations
827 * Used to pass interface combination parameters
829 * @num_different_channels: the number of different channels we want
830 * to use for verification
831 * @radar_detect: a bitmap where each bit corresponds to a channel
832 * width where radar detection is needed, as in the definition of
833 * &struct ieee80211_iface_combination.@radar_detect_widths
834 * @iftype_num: array with the number of interfaces of each interface
835 * type. The index is the interface type as specified in &enum
837 * @new_beacon_int: set this to the beacon interval of a new interface
838 * that's not operating yet, if such is to be checked as part of
841 struct iface_combination_params {
842 int num_different_channels;
844 int iftype_num[NUM_NL80211_IFTYPES];
849 * enum station_parameters_apply_mask - station parameter values to apply
850 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
851 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
852 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
854 * Not all station parameters have in-band "no change" signalling,
855 * for those that don't these flags will are used.
857 enum station_parameters_apply_mask {
858 STATION_PARAM_APPLY_UAPSD = BIT(0),
859 STATION_PARAM_APPLY_CAPABILITY = BIT(1),
860 STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
864 * struct station_parameters - station parameters
866 * Used to change and create a new station.
868 * @vlan: vlan interface station should belong to
869 * @supported_rates: supported rates in IEEE 802.11 format
870 * (or NULL for no change)
871 * @supported_rates_len: number of supported rates
872 * @sta_flags_mask: station flags that changed
873 * (bitmask of BIT(%NL80211_STA_FLAG_...))
874 * @sta_flags_set: station flags values
875 * (bitmask of BIT(%NL80211_STA_FLAG_...))
876 * @listen_interval: listen interval or -1 for no change
877 * @aid: AID or zero for no change
878 * @peer_aid: mesh peer AID or zero for no change
879 * @plink_action: plink action to take
880 * @plink_state: set the peer link state for a station
881 * @ht_capa: HT capabilities of station
882 * @vht_capa: VHT capabilities of station
883 * @uapsd_queues: bitmap of queues configured for uapsd. same format
884 * as the AC bitmap in the QoS info field
885 * @max_sp: max Service Period. same format as the MAX_SP in the
886 * QoS info field (but already shifted down)
887 * @sta_modify_mask: bitmap indicating which parameters changed
888 * (for those that don't have a natural "no change" value),
889 * see &enum station_parameters_apply_mask
890 * @local_pm: local link-specific mesh power save mode (no change when set
892 * @capability: station capability
893 * @ext_capab: extended capabilities of the station
894 * @ext_capab_len: number of extended capabilities
895 * @supported_channels: supported channels in IEEE 802.11 format
896 * @supported_channels_len: number of supported channels
897 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
898 * @supported_oper_classes_len: number of supported operating classes
899 * @opmode_notif: operating mode field from Operating Mode Notification
900 * @opmode_notif_used: information if operating mode field is used
901 * @support_p2p_ps: information if station supports P2P PS mechanism
903 struct station_parameters {
904 const u8 *supported_rates;
905 struct net_device *vlan;
906 u32 sta_flags_mask, sta_flags_set;
911 u8 supported_rates_len;
914 const struct ieee80211_ht_cap *ht_capa;
915 const struct ieee80211_vht_cap *vht_capa;
918 enum nl80211_mesh_power_mode local_pm;
922 const u8 *supported_channels;
923 u8 supported_channels_len;
924 const u8 *supported_oper_classes;
925 u8 supported_oper_classes_len;
927 bool opmode_notif_used;
932 * struct station_del_parameters - station deletion parameters
934 * Used to delete a station entry (or all stations).
936 * @mac: MAC address of the station to remove or NULL to remove all stations
937 * @subtype: Management frame subtype to use for indicating removal
938 * (10 = Disassociation, 12 = Deauthentication)
939 * @reason_code: Reason code for the Disassociation/Deauthentication frame
941 struct station_del_parameters {
948 * enum cfg80211_station_type - the type of station being modified
949 * @CFG80211_STA_AP_CLIENT: client of an AP interface
950 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
951 * unassociated (update properties for this type of client is permitted)
952 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
953 * the AP MLME in the device
954 * @CFG80211_STA_AP_STA: AP station on managed interface
955 * @CFG80211_STA_IBSS: IBSS station
956 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
957 * while TDLS setup is in progress, it moves out of this state when
958 * being marked authorized; use this only if TDLS with external setup is
960 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
961 * entry that is operating, has been marked authorized by userspace)
962 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
963 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
965 enum cfg80211_station_type {
966 CFG80211_STA_AP_CLIENT,
967 CFG80211_STA_AP_CLIENT_UNASSOC,
968 CFG80211_STA_AP_MLME_CLIENT,
971 CFG80211_STA_TDLS_PEER_SETUP,
972 CFG80211_STA_TDLS_PEER_ACTIVE,
973 CFG80211_STA_MESH_PEER_KERNEL,
974 CFG80211_STA_MESH_PEER_USER,
978 * cfg80211_check_station_change - validate parameter changes
979 * @wiphy: the wiphy this operates on
980 * @params: the new parameters for a station
981 * @statype: the type of station being modified
983 * Utility function for the @change_station driver method. Call this function
984 * with the appropriate station type looking up the station (and checking that
985 * it exists). It will verify whether the station change is acceptable, and if
986 * not will return an error code. Note that it may modify the parameters for
987 * backward compatibility reasons, so don't use them before calling this.
989 int cfg80211_check_station_change(struct wiphy *wiphy,
990 struct station_parameters *params,
991 enum cfg80211_station_type statype);
994 * enum station_info_rate_flags - bitrate info flags
996 * Used by the driver to indicate the specific rate transmission
997 * type for 802.11n transmissions.
999 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
1000 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
1001 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
1002 * @RATE_INFO_FLAGS_60G: 60GHz MCS
1004 enum rate_info_flags {
1005 RATE_INFO_FLAGS_MCS = BIT(0),
1006 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
1007 RATE_INFO_FLAGS_SHORT_GI = BIT(2),
1008 RATE_INFO_FLAGS_60G = BIT(3),
1012 * enum rate_info_bw - rate bandwidth information
1014 * Used by the driver to indicate the rate bandwidth.
1016 * @RATE_INFO_BW_5: 5 MHz bandwidth
1017 * @RATE_INFO_BW_10: 10 MHz bandwidth
1018 * @RATE_INFO_BW_20: 20 MHz bandwidth
1019 * @RATE_INFO_BW_40: 40 MHz bandwidth
1020 * @RATE_INFO_BW_80: 80 MHz bandwidth
1021 * @RATE_INFO_BW_160: 160 MHz bandwidth
1024 RATE_INFO_BW_20 = 0,
1033 * struct rate_info - bitrate information
1035 * Information about a receiving or transmitting bitrate
1037 * @flags: bitflag of flags from &enum rate_info_flags
1038 * @mcs: mcs index if struct describes a 802.11n bitrate
1039 * @legacy: bitrate in 100kbit/s for 802.11abg
1040 * @nss: number of streams (VHT only)
1041 * @bw: bandwidth (from &enum rate_info_bw)
1052 * enum station_info_rate_flags - bitrate info flags
1054 * Used by the driver to indicate the specific rate transmission
1055 * type for 802.11n transmissions.
1057 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
1058 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
1059 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
1061 enum bss_param_flags {
1062 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
1063 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
1064 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
1068 * struct sta_bss_parameters - BSS parameters for the attached station
1070 * Information about the currently associated BSS
1072 * @flags: bitflag of flags from &enum bss_param_flags
1073 * @dtim_period: DTIM period for the BSS
1074 * @beacon_interval: beacon interval
1076 struct sta_bss_parameters {
1079 u16 beacon_interval;
1083 * struct cfg80211_tid_stats - per-TID statistics
1084 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to
1085 * indicate the relevant values in this struct are filled
1086 * @rx_msdu: number of received MSDUs
1087 * @tx_msdu: number of (attempted) transmitted MSDUs
1088 * @tx_msdu_retries: number of retries (not counting the first) for
1090 * @tx_msdu_failed: number of failed transmitted MSDUs
1092 struct cfg80211_tid_stats {
1096 u64 tx_msdu_retries;
1100 #define IEEE80211_MAX_CHAINS 4
1103 * struct station_info - station information
1105 * Station information filled by driver for get_station() and dump_station.
1107 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to
1108 * indicate the relevant values in this struct for them
1109 * @connected_time: time(in secs) since a station is last connected
1110 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1111 * @rx_bytes: bytes (size of MPDUs) received from this station
1112 * @tx_bytes: bytes (size of MPDUs) transmitted to this station
1113 * @llid: mesh local link id
1114 * @plid: mesh peer link id
1115 * @plink_state: mesh peer link state
1116 * @signal: The signal strength, type depends on the wiphy's signal_type.
1117 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1118 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1119 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1120 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1121 * @chain_signal: per-chain signal strength of last received packet in dBm
1122 * @chain_signal_avg: per-chain signal strength average in dBm
1123 * @txrate: current unicast bitrate from this station
1124 * @rxrate: current unicast bitrate to this station
1125 * @rx_packets: packets (MSDUs & MMPDUs) received from this station
1126 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station
1127 * @tx_retries: cumulative retry counts (MPDUs)
1128 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK)
1129 * @rx_dropped_misc: Dropped for un-specified reason.
1130 * @bss_param: current BSS parameters
1131 * @generation: generation number for nl80211 dumps.
1132 * This number should increase every time the list of stations
1133 * changes, i.e. when a station is added or removed, so that
1134 * userspace can tell whether it got a consistent snapshot.
1135 * @assoc_req_ies: IEs from (Re)Association Request.
1136 * This is used only when in AP mode with drivers that do not use
1137 * user space MLME/SME implementation. The information is provided for
1138 * the cfg80211_new_sta() calls to notify user space of the IEs.
1139 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1140 * @sta_flags: station flags mask & values
1141 * @beacon_loss_count: Number of times beacon loss event has triggered.
1142 * @t_offset: Time offset of the station relative to this host.
1143 * @local_pm: local mesh STA power save mode
1144 * @peer_pm: peer mesh STA power save mode
1145 * @nonpeer_pm: non-peer mesh STA power save mode
1146 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1147 * towards this station.
1148 * @rx_beacon: number of beacons received from this peer
1149 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
1151 * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer
1152 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
1153 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
1154 * @ack_signal: signal strength (in dBm) of the last ACK frame.
1155 * @avg_ack_signal: average rssi value of ack packet for the no of msdu's has
1158 struct station_info {
1171 s8 chain_signal[IEEE80211_MAX_CHAINS];
1172 s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
1174 struct rate_info txrate;
1175 struct rate_info rxrate;
1180 u32 rx_dropped_misc;
1181 struct sta_bss_parameters bss_param;
1182 struct nl80211_sta_flag_update sta_flags;
1186 const u8 *assoc_req_ies;
1187 size_t assoc_req_ies_len;
1189 u32 beacon_loss_count;
1191 enum nl80211_mesh_power_mode local_pm;
1192 enum nl80211_mesh_power_mode peer_pm;
1193 enum nl80211_mesh_power_mode nonpeer_pm;
1195 u32 expected_throughput;
1199 u8 rx_beacon_signal_avg;
1200 struct cfg80211_tid_stats pertid[IEEE80211_NUM_TIDS + 1];
1205 #if IS_ENABLED(CONFIG_CFG80211)
1207 * cfg80211_get_station - retrieve information about a given station
1208 * @dev: the device where the station is supposed to be connected to
1209 * @mac_addr: the mac address of the station of interest
1210 * @sinfo: pointer to the structure to fill with the information
1212 * Returns 0 on success and sinfo is filled with the available information
1213 * otherwise returns a negative error code and the content of sinfo has to be
1214 * considered undefined.
1216 int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
1217 struct station_info *sinfo);
1219 static inline int cfg80211_get_station(struct net_device *dev,
1221 struct station_info *sinfo)
1228 * enum monitor_flags - monitor flags
1230 * Monitor interface configuration flags. Note that these must be the bits
1231 * according to the nl80211 flags.
1233 * @MONITOR_FLAG_CHANGED: set if the flags were changed
1234 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1235 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1236 * @MONITOR_FLAG_CONTROL: pass control frames
1237 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1238 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1239 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1241 enum monitor_flags {
1242 MONITOR_FLAG_CHANGED = 1<<__NL80211_MNTR_FLAG_INVALID,
1243 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
1244 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
1245 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
1246 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
1247 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
1248 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE,
1252 * enum mpath_info_flags - mesh path information flags
1254 * Used by the driver to indicate which info in &struct mpath_info it has filled
1255 * in during get_station() or dump_station().
1257 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1258 * @MPATH_INFO_SN: @sn filled
1259 * @MPATH_INFO_METRIC: @metric filled
1260 * @MPATH_INFO_EXPTIME: @exptime filled
1261 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1262 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1263 * @MPATH_INFO_FLAGS: @flags filled
1265 enum mpath_info_flags {
1266 MPATH_INFO_FRAME_QLEN = BIT(0),
1267 MPATH_INFO_SN = BIT(1),
1268 MPATH_INFO_METRIC = BIT(2),
1269 MPATH_INFO_EXPTIME = BIT(3),
1270 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
1271 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
1272 MPATH_INFO_FLAGS = BIT(6),
1276 * struct mpath_info - mesh path information
1278 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1280 * @filled: bitfield of flags from &enum mpath_info_flags
1281 * @frame_qlen: number of queued frames for this destination
1282 * @sn: target sequence number
1283 * @metric: metric (cost) of this mesh path
1284 * @exptime: expiration time for the mesh path from now, in msecs
1285 * @flags: mesh path flags
1286 * @discovery_timeout: total mesh path discovery timeout, in msecs
1287 * @discovery_retries: mesh path discovery retries
1288 * @generation: generation number for nl80211 dumps.
1289 * This number should increase every time the list of mesh paths
1290 * changes, i.e. when a station is added or removed, so that
1291 * userspace can tell whether it got a consistent snapshot.
1299 u32 discovery_timeout;
1300 u8 discovery_retries;
1307 * struct bss_parameters - BSS parameters
1309 * Used to change BSS parameters (mainly for AP mode).
1311 * @use_cts_prot: Whether to use CTS protection
1312 * (0 = no, 1 = yes, -1 = do not change)
1313 * @use_short_preamble: Whether the use of short preambles is allowed
1314 * (0 = no, 1 = yes, -1 = do not change)
1315 * @use_short_slot_time: Whether the use of short slot time is allowed
1316 * (0 = no, 1 = yes, -1 = do not change)
1317 * @basic_rates: basic rates in IEEE 802.11 format
1318 * (or NULL for no change)
1319 * @basic_rates_len: number of basic rates
1320 * @ap_isolate: do not forward packets between connected stations
1321 * @ht_opmode: HT Operation mode
1322 * (u16 = opmode, -1 = do not change)
1323 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1324 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1326 struct bss_parameters {
1328 int use_short_preamble;
1329 int use_short_slot_time;
1330 const u8 *basic_rates;
1334 s8 p2p_ctwindow, p2p_opp_ps;
1338 * struct mesh_config - 802.11s mesh configuration
1340 * These parameters can be changed while the mesh is active.
1342 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1343 * by the Mesh Peering Open message
1344 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1345 * used by the Mesh Peering Open message
1346 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1347 * the mesh peering management to close a mesh peering
1348 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1350 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1351 * be sent to establish a new peer link instance in a mesh
1352 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1353 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1355 * @auto_open_plinks: whether we should automatically open peer links when we
1356 * detect compatible mesh peers
1357 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1358 * synchronize to for 11s default synchronization method
1359 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1360 * that an originator mesh STA can send to a particular path target
1361 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1362 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1363 * a path discovery in milliseconds
1364 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1365 * receiving a PREQ shall consider the forwarding information from the
1366 * root to be valid. (TU = time unit)
1367 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1368 * which a mesh STA can send only one action frame containing a PREQ
1370 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1371 * which a mesh STA can send only one Action frame containing a PERR
1373 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1374 * it takes for an HWMP information element to propagate across the mesh
1375 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1376 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1377 * announcements are transmitted
1378 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1379 * station has access to a broader network beyond the MBSS. (This is
1380 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1381 * only means that the station will announce others it's a mesh gate, but
1382 * not necessarily using the gate announcement protocol. Still keeping the
1383 * same nomenclature to be in sync with the spec)
1384 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1385 * entity (default is TRUE - forwarding entity)
1386 * @rssi_threshold: the threshold for average signal strength of candidate
1387 * station to establish a peer link
1388 * @ht_opmode: mesh HT protection mode
1390 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1391 * receiving a proactive PREQ shall consider the forwarding information to
1392 * the root mesh STA to be valid.
1394 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1395 * PREQs are transmitted.
1396 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1397 * during which a mesh STA can send only one Action frame containing
1398 * a PREQ element for root path confirmation.
1399 * @power_mode: The default mesh power save mode which will be the initial
1400 * setting for new peer links.
1401 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1402 * after transmitting its beacon.
1403 * @plink_timeout: If no tx activity is seen from a STA we've established
1404 * peering with for longer than this time (in seconds), then remove it
1405 * from the STA's list of peers. Default is 30 minutes.
1407 struct mesh_config {
1408 u16 dot11MeshRetryTimeout;
1409 u16 dot11MeshConfirmTimeout;
1410 u16 dot11MeshHoldingTimeout;
1411 u16 dot11MeshMaxPeerLinks;
1412 u8 dot11MeshMaxRetries;
1415 bool auto_open_plinks;
1416 u32 dot11MeshNbrOffsetMaxNeighbor;
1417 u8 dot11MeshHWMPmaxPREQretries;
1418 u32 path_refresh_time;
1419 u16 min_discovery_timeout;
1420 u32 dot11MeshHWMPactivePathTimeout;
1421 u16 dot11MeshHWMPpreqMinInterval;
1422 u16 dot11MeshHWMPperrMinInterval;
1423 u16 dot11MeshHWMPnetDiameterTraversalTime;
1424 u8 dot11MeshHWMPRootMode;
1425 u16 dot11MeshHWMPRannInterval;
1426 bool dot11MeshGateAnnouncementProtocol;
1427 bool dot11MeshForwarding;
1430 u32 dot11MeshHWMPactivePathToRootTimeout;
1431 u16 dot11MeshHWMProotInterval;
1432 u16 dot11MeshHWMPconfirmationInterval;
1433 enum nl80211_mesh_power_mode power_mode;
1434 u16 dot11MeshAwakeWindowDuration;
1439 * struct mesh_setup - 802.11s mesh setup configuration
1440 * @chandef: defines the channel to use
1441 * @mesh_id: the mesh ID
1442 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1443 * @sync_method: which synchronization method to use
1444 * @path_sel_proto: which path selection protocol to use
1445 * @path_metric: which metric to use
1446 * @auth_id: which authentication method this mesh is using
1447 * @ie: vendor information elements (optional)
1448 * @ie_len: length of vendor information elements
1449 * @is_authenticated: this mesh requires authentication
1450 * @is_secure: this mesh uses security
1451 * @user_mpm: userspace handles all MPM functions
1452 * @dtim_period: DTIM period to use
1453 * @beacon_interval: beacon interval to use
1454 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1455 * @basic_rates: basic rates to use when creating the mesh
1456 * @beacon_rate: bitrate to be used for beacons
1457 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1458 * changes the channel when a radar is detected. This is required
1459 * to operate on DFS channels.
1460 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
1461 * port frames over NL80211 instead of the network interface.
1463 * These parameters are fixed when the mesh is created.
1466 struct cfg80211_chan_def chandef;
1475 bool is_authenticated;
1479 u16 beacon_interval;
1480 int mcast_rate[NUM_NL80211_BANDS];
1482 struct cfg80211_bitrate_mask beacon_rate;
1483 bool userspace_handles_dfs;
1484 bool control_port_over_nl80211;
1488 * struct ocb_setup - 802.11p OCB mode setup configuration
1489 * @chandef: defines the channel to use
1491 * These parameters are fixed when connecting to the network
1494 struct cfg80211_chan_def chandef;
1498 * struct ieee80211_txq_params - TX queue parameters
1499 * @ac: AC identifier
1500 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1501 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1503 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1505 * @aifs: Arbitration interframe space [0..255]
1507 struct ieee80211_txq_params {
1516 * DOC: Scanning and BSS list handling
1518 * The scanning process itself is fairly simple, but cfg80211 offers quite
1519 * a bit of helper functionality. To start a scan, the scan operation will
1520 * be invoked with a scan definition. This scan definition contains the
1521 * channels to scan, and the SSIDs to send probe requests for (including the
1522 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1523 * probe. Additionally, a scan request may contain extra information elements
1524 * that should be added to the probe request. The IEs are guaranteed to be
1525 * well-formed, and will not exceed the maximum length the driver advertised
1526 * in the wiphy structure.
1528 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1529 * it is responsible for maintaining the BSS list; the driver should not
1530 * maintain a list itself. For this notification, various functions exist.
1532 * Since drivers do not maintain a BSS list, there are also a number of
1533 * functions to search for a BSS and obtain information about it from the
1534 * BSS structure cfg80211 maintains. The BSS list is also made available
1539 * struct cfg80211_ssid - SSID description
1541 * @ssid_len: length of the ssid
1543 struct cfg80211_ssid {
1544 u8 ssid[IEEE80211_MAX_SSID_LEN];
1549 * struct cfg80211_scan_info - information about completed scan
1550 * @scan_start_tsf: scan start time in terms of the TSF of the BSS that the
1551 * wireless device that requested the scan is connected to. If this
1552 * information is not available, this field is left zero.
1553 * @tsf_bssid: the BSSID according to which %scan_start_tsf is set.
1554 * @aborted: set to true if the scan was aborted for any reason,
1555 * userspace will be notified of that
1557 struct cfg80211_scan_info {
1559 u8 tsf_bssid[ETH_ALEN] __aligned(2);
1564 * struct cfg80211_scan_request - scan request description
1566 * @ssids: SSIDs to scan for (active scan only)
1567 * @n_ssids: number of SSIDs
1568 * @channels: channels to scan on.
1569 * @n_channels: total number of channels to scan
1570 * @scan_width: channel width for scanning
1571 * @ie: optional information element(s) to add into Probe Request or %NULL
1572 * @ie_len: length of ie in octets
1573 * @duration: how long to listen on each channel, in TUs. If
1574 * %duration_mandatory is not set, this is the maximum dwell time and
1575 * the actual dwell time may be shorter.
1576 * @duration_mandatory: if set, the scan duration must be as specified by the
1578 * @flags: bit field of flags controlling operation
1579 * @rates: bitmap of rates to advertise for each band
1580 * @wiphy: the wiphy this was for
1581 * @scan_start: time (in jiffies) when the scan started
1582 * @wdev: the wireless device to scan for
1583 * @info: (internal) information about completed scan
1584 * @notified: (internal) scan request was notified as done or aborted
1585 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1586 * @mac_addr: MAC address used with randomisation
1587 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1588 * are 0 in the mask should be randomised, bits that are 1 should
1589 * be taken from the @mac_addr
1590 * @bssid: BSSID to scan for (most commonly, the wildcard BSSID)
1592 struct cfg80211_scan_request {
1593 struct cfg80211_ssid *ssids;
1596 enum nl80211_bss_scan_width scan_width;
1600 bool duration_mandatory;
1603 u32 rates[NUM_NL80211_BANDS];
1605 struct wireless_dev *wdev;
1607 u8 mac_addr[ETH_ALEN] __aligned(2);
1608 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1609 u8 bssid[ETH_ALEN] __aligned(2);
1612 struct wiphy *wiphy;
1613 unsigned long scan_start;
1614 struct cfg80211_scan_info info;
1619 struct ieee80211_channel *channels[0];
1622 static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask)
1626 get_random_bytes(buf, ETH_ALEN);
1627 for (i = 0; i < ETH_ALEN; i++) {
1629 buf[i] |= addr[i] & mask[i];
1634 * struct cfg80211_match_set - sets of attributes to match
1636 * @ssid: SSID to be matched; may be zero-length in case of BSSID match
1637 * or no match (RSSI only)
1638 * @bssid: BSSID to be matched; may be all-zero BSSID in case of SSID match
1639 * or no match (RSSI only)
1640 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1642 struct cfg80211_match_set {
1643 struct cfg80211_ssid ssid;
1649 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan
1651 * @interval: interval between scheduled scan iterations. In seconds.
1652 * @iterations: number of scan iterations in this scan plan. Zero means
1654 * The last scan plan will always have this parameter set to zero,
1655 * all other scan plans will have a finite number of iterations.
1657 struct cfg80211_sched_scan_plan {
1663 * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment.
1665 * @band: band of BSS which should match for RSSI level adjustment.
1666 * @delta: value of RSSI level adjustment.
1668 struct cfg80211_bss_select_adjust {
1669 enum nl80211_band band;
1674 * struct cfg80211_sched_scan_request - scheduled scan request description
1676 * @reqid: identifies this request.
1677 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1678 * @n_ssids: number of SSIDs
1679 * @n_channels: total number of channels to scan
1680 * @scan_width: channel width for scanning
1681 * @ie: optional information element(s) to add into Probe Request or %NULL
1682 * @ie_len: length of ie in octets
1683 * @flags: bit field of flags controlling operation
1684 * @match_sets: sets of parameters to be matched for a scan result
1685 * entry to be considered valid and to be passed to the host
1686 * (others are filtered out).
1687 * If ommited, all results are passed.
1688 * @n_match_sets: number of match sets
1689 * @report_results: indicates that results were reported for this request
1690 * @wiphy: the wiphy this was for
1691 * @dev: the interface
1692 * @scan_start: start time of the scheduled scan
1693 * @channels: channels to scan
1694 * @min_rssi_thold: for drivers only supporting a single threshold, this
1695 * contains the minimum over all matchsets
1696 * @mac_addr: MAC address used with randomisation
1697 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1698 * are 0 in the mask should be randomised, bits that are 1 should
1699 * be taken from the @mac_addr
1700 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest
1701 * index must be executed first.
1702 * @n_scan_plans: number of scan plans, at least 1.
1703 * @rcu_head: RCU callback used to free the struct
1704 * @owner_nlportid: netlink portid of owner (if this should is a request
1705 * owned by a particular socket)
1706 * @nl_owner_dead: netlink owner socket was closed - this request be freed
1707 * @list: for keeping list of requests.
1708 * @delay: delay in seconds to use before starting the first scan
1709 * cycle. The driver may ignore this parameter and start
1710 * immediately (or at any other time), if this feature is not
1712 * @relative_rssi_set: Indicates whether @relative_rssi is set or not.
1713 * @relative_rssi: Relative RSSI threshold in dB to restrict scan result
1714 * reporting in connected state to cases where a matching BSS is determined
1715 * to have better or slightly worse RSSI than the current connected BSS.
1716 * The relative RSSI threshold values are ignored in disconnected state.
1717 * @rssi_adjust: delta dB of RSSI preference to be given to the BSSs that belong
1718 * to the specified band while deciding whether a better BSS is reported
1719 * using @relative_rssi. If delta is a negative number, the BSSs that
1720 * belong to the specified band will be penalized by delta dB in relative
1723 struct cfg80211_sched_scan_request {
1725 struct cfg80211_ssid *ssids;
1728 enum nl80211_bss_scan_width scan_width;
1732 struct cfg80211_match_set *match_sets;
1736 struct cfg80211_sched_scan_plan *scan_plans;
1739 u8 mac_addr[ETH_ALEN] __aligned(2);
1740 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1742 bool relative_rssi_set;
1744 struct cfg80211_bss_select_adjust rssi_adjust;
1747 struct wiphy *wiphy;
1748 struct net_device *dev;
1749 unsigned long scan_start;
1750 bool report_results;
1751 struct rcu_head rcu_head;
1754 struct list_head list;
1757 struct ieee80211_channel *channels[0];
1761 * enum cfg80211_signal_type - signal type
1763 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1764 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1765 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1767 enum cfg80211_signal_type {
1768 CFG80211_SIGNAL_TYPE_NONE,
1769 CFG80211_SIGNAL_TYPE_MBM,
1770 CFG80211_SIGNAL_TYPE_UNSPEC,
1774 * struct cfg80211_inform_bss - BSS inform data
1775 * @chan: channel the frame was received on
1776 * @scan_width: scan width that was used
1777 * @signal: signal strength value, according to the wiphy's
1779 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was
1780 * received; should match the time when the frame was actually
1781 * received by the device (not just by the host, in case it was
1782 * buffered on the device) and be accurate to about 10ms.
1783 * If the frame isn't buffered, just passing the return value of
1784 * ktime_get_boot_ns() is likely appropriate.
1785 * @parent_tsf: the time at the start of reception of the first octet of the
1786 * timestamp field of the frame. The time is the TSF of the BSS specified
1788 * @parent_bssid: the BSS according to which %parent_tsf is set. This is set to
1789 * the BSS that requested the scan in which the beacon/probe was received.
1790 * @chains: bitmask for filled values in @chain_signal.
1791 * @chain_signal: per-chain signal strength of last received BSS in dBm.
1793 struct cfg80211_inform_bss {
1794 struct ieee80211_channel *chan;
1795 enum nl80211_bss_scan_width scan_width;
1799 u8 parent_bssid[ETH_ALEN] __aligned(2);
1801 s8 chain_signal[IEEE80211_MAX_CHAINS];
1805 * struct cfg80211_bss_ies - BSS entry IE data
1806 * @tsf: TSF contained in the frame that carried these IEs
1807 * @rcu_head: internal use, for freeing
1808 * @len: length of the IEs
1809 * @from_beacon: these IEs are known to come from a beacon
1812 struct cfg80211_bss_ies {
1814 struct rcu_head rcu_head;
1821 * struct cfg80211_bss - BSS description
1823 * This structure describes a BSS (which may also be a mesh network)
1824 * for use in scan results and similar.
1826 * @channel: channel this BSS is on
1827 * @scan_width: width of the control channel
1828 * @bssid: BSSID of the BSS
1829 * @beacon_interval: the beacon interval as from the frame
1830 * @capability: the capability field in host byte order
1831 * @ies: the information elements (Note that there is no guarantee that these
1832 * are well-formed!); this is a pointer to either the beacon_ies or
1833 * proberesp_ies depending on whether Probe Response frame has been
1834 * received. It is always non-%NULL.
1835 * @beacon_ies: the information elements from the last Beacon frame
1836 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1837 * own the beacon_ies, but they're just pointers to the ones from the
1838 * @hidden_beacon_bss struct)
1839 * @proberesp_ies: the information elements from the last Probe Response frame
1840 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1841 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1842 * that holds the beacon data. @beacon_ies is still valid, of course, and
1843 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1844 * @signal: signal strength value (type depends on the wiphy's signal_type)
1845 * @chains: bitmask for filled values in @chain_signal.
1846 * @chain_signal: per-chain signal strength of last received BSS in dBm.
1847 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1849 struct cfg80211_bss {
1850 struct ieee80211_channel *channel;
1851 enum nl80211_bss_scan_width scan_width;
1853 const struct cfg80211_bss_ies __rcu *ies;
1854 const struct cfg80211_bss_ies __rcu *beacon_ies;
1855 const struct cfg80211_bss_ies __rcu *proberesp_ies;
1857 struct cfg80211_bss *hidden_beacon_bss;
1861 u16 beacon_interval;
1866 s8 chain_signal[IEEE80211_MAX_CHAINS];
1868 u8 priv[0] __aligned(sizeof(void *));
1872 * ieee80211_bss_get_ie - find IE with given ID
1873 * @bss: the bss to search
1876 * Note that the return value is an RCU-protected pointer, so
1877 * rcu_read_lock() must be held when calling this function.
1878 * Return: %NULL if not found.
1880 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1884 * struct cfg80211_auth_request - Authentication request data
1886 * This structure provides information needed to complete IEEE 802.11
1889 * @bss: The BSS to authenticate with, the callee must obtain a reference
1890 * to it if it needs to keep it.
1891 * @auth_type: Authentication type (algorithm)
1892 * @ie: Extra IEs to add to Authentication frame or %NULL
1893 * @ie_len: Length of ie buffer in octets
1894 * @key_len: length of WEP key for shared key authentication
1895 * @key_idx: index of WEP key for shared key authentication
1896 * @key: WEP key for shared key authentication
1897 * @auth_data: Fields and elements in Authentication frames. This contains
1898 * the authentication frame body (non-IE and IE data), excluding the
1899 * Authentication algorithm number, i.e., starting at the Authentication
1900 * transaction sequence number field.
1901 * @auth_data_len: Length of auth_data buffer in octets
1903 struct cfg80211_auth_request {
1904 struct cfg80211_bss *bss;
1907 enum nl80211_auth_type auth_type;
1909 u8 key_len, key_idx;
1910 const u8 *auth_data;
1911 size_t auth_data_len;
1915 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1917 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1918 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1919 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
1920 * @CONNECT_REQ_EXTERNAL_AUTH_SUPPORT: User space indicates external
1921 * authentication capability. Drivers can offload authentication to
1922 * userspace if this flag is set. Only applicable for cfg80211_connect()
1923 * request (connect callback).
1925 enum cfg80211_assoc_req_flags {
1926 ASSOC_REQ_DISABLE_HT = BIT(0),
1927 ASSOC_REQ_DISABLE_VHT = BIT(1),
1928 ASSOC_REQ_USE_RRM = BIT(2),
1929 CONNECT_REQ_EXTERNAL_AUTH_SUPPORT = BIT(3),
1933 * struct cfg80211_assoc_request - (Re)Association request data
1935 * This structure provides information needed to complete IEEE 802.11
1937 * @bss: The BSS to associate with. If the call is successful the driver is
1938 * given a reference that it must give back to cfg80211_send_rx_assoc()
1939 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1940 * association requests while already associating must be rejected.
1941 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1942 * @ie_len: Length of ie buffer in octets
1943 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1944 * @crypto: crypto settings
1945 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
1946 * to indicate a request to reassociate within the ESS instead of a request
1947 * do the initial association with the ESS. When included, this is set to
1948 * the BSSID of the current association, i.e., to the value that is
1949 * included in the Current AP address field of the Reassociation Request
1951 * @flags: See &enum cfg80211_assoc_req_flags
1952 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1953 * will be used in ht_capa. Un-supported values will be ignored.
1954 * @ht_capa_mask: The bits of ht_capa which are to be used.
1955 * @vht_capa: VHT capability override
1956 * @vht_capa_mask: VHT capability mask indicating which fields to use
1957 * @fils_kek: FILS KEK for protecting (Re)Association Request/Response frame or
1958 * %NULL if FILS is not used.
1959 * @fils_kek_len: Length of fils_kek in octets
1960 * @fils_nonces: FILS nonces (part of AAD) for protecting (Re)Association
1961 * Request/Response frame or %NULL if FILS is not used. This field starts
1962 * with 16 octets of STA Nonce followed by 16 octets of AP Nonce.
1964 struct cfg80211_assoc_request {
1965 struct cfg80211_bss *bss;
1966 const u8 *ie, *prev_bssid;
1968 struct cfg80211_crypto_settings crypto;
1971 struct ieee80211_ht_cap ht_capa;
1972 struct ieee80211_ht_cap ht_capa_mask;
1973 struct ieee80211_vht_cap vht_capa, vht_capa_mask;
1975 size_t fils_kek_len;
1976 const u8 *fils_nonces;
1980 * struct cfg80211_deauth_request - Deauthentication request data
1982 * This structure provides information needed to complete IEEE 802.11
1985 * @bssid: the BSSID of the BSS to deauthenticate from
1986 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1987 * @ie_len: Length of ie buffer in octets
1988 * @reason_code: The reason code for the deauthentication
1989 * @local_state_change: if set, change local state only and
1990 * do not set a deauth frame
1992 struct cfg80211_deauth_request {
1997 bool local_state_change;
2001 * struct cfg80211_disassoc_request - Disassociation request data
2003 * This structure provides information needed to complete IEEE 802.11
2006 * @bss: the BSS to disassociate from
2007 * @ie: Extra IEs to add to Disassociation frame or %NULL
2008 * @ie_len: Length of ie buffer in octets
2009 * @reason_code: The reason code for the disassociation
2010 * @local_state_change: This is a request for a local state only, i.e., no
2011 * Disassociation frame is to be transmitted.
2013 struct cfg80211_disassoc_request {
2014 struct cfg80211_bss *bss;
2018 bool local_state_change;
2022 * struct cfg80211_ibss_params - IBSS parameters
2024 * This structure defines the IBSS parameters for the join_ibss()
2027 * @ssid: The SSID, will always be non-null.
2028 * @ssid_len: The length of the SSID, will always be non-zero.
2029 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
2030 * search for IBSSs with a different BSSID.
2031 * @chandef: defines the channel to use if no other IBSS to join can be found
2032 * @channel_fixed: The channel should be fixed -- do not search for
2033 * IBSSs to join on other channels.
2034 * @ie: information element(s) to include in the beacon
2035 * @ie_len: length of that
2036 * @beacon_interval: beacon interval to use
2037 * @privacy: this is a protected network, keys will be configured
2039 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
2040 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
2041 * required to assume that the port is unauthorized until authorized by
2042 * user space. Otherwise, port is marked authorized by default.
2043 * @control_port_over_nl80211: TRUE if userspace expects to exchange control
2044 * port frames over NL80211 instead of the network interface.
2045 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
2046 * changes the channel when a radar is detected. This is required
2047 * to operate on DFS channels.
2048 * @basic_rates: bitmap of basic rates to use when creating the IBSS
2049 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
2050 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2051 * will be used in ht_capa. Un-supported values will be ignored.
2052 * @ht_capa_mask: The bits of ht_capa which are to be used.
2053 * @wep_keys: static WEP keys, if not NULL points to an array of
2054 * CFG80211_MAX_WEP_KEYS WEP keys
2055 * @wep_tx_key: key index (0..3) of the default TX static WEP key
2057 struct cfg80211_ibss_params {
2060 struct cfg80211_chan_def chandef;
2062 u8 ssid_len, ie_len;
2063 u16 beacon_interval;
2068 bool control_port_over_nl80211;
2069 bool userspace_handles_dfs;
2070 int mcast_rate[NUM_NL80211_BANDS];
2071 struct ieee80211_ht_cap ht_capa;
2072 struct ieee80211_ht_cap ht_capa_mask;
2073 struct key_params *wep_keys;
2078 * struct cfg80211_bss_selection - connection parameters for BSS selection.
2080 * @behaviour: requested BSS selection behaviour.
2081 * @param: parameters for requestion behaviour.
2082 * @band_pref: preferred band for %NL80211_BSS_SELECT_ATTR_BAND_PREF.
2083 * @adjust: parameters for %NL80211_BSS_SELECT_ATTR_RSSI_ADJUST.
2085 struct cfg80211_bss_selection {
2086 enum nl80211_bss_select_attr behaviour;
2088 enum nl80211_band band_pref;
2089 struct cfg80211_bss_select_adjust adjust;
2094 * struct cfg80211_connect_params - Connection parameters
2096 * This structure provides information needed to complete IEEE 802.11
2097 * authentication and association.
2099 * @channel: The channel to use or %NULL if not specified (auto-select based
2101 * @channel_hint: The channel of the recommended BSS for initial connection or
2102 * %NULL if not specified
2103 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
2105 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
2106 * %NULL if not specified. Unlike the @bssid parameter, the driver is
2107 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
2110 * @ssid_len: Length of ssid in octets
2111 * @auth_type: Authentication type (algorithm)
2112 * @ie: IEs for association request
2113 * @ie_len: Length of assoc_ie in octets
2114 * @privacy: indicates whether privacy-enabled APs should be used
2115 * @mfp: indicate whether management frame protection is used
2116 * @crypto: crypto settings
2117 * @key_len: length of WEP key for shared key authentication
2118 * @key_idx: index of WEP key for shared key authentication
2119 * @key: WEP key for shared key authentication
2120 * @flags: See &enum cfg80211_assoc_req_flags
2121 * @bg_scan_period: Background scan period in seconds
2122 * or -1 to indicate that default value is to be used.
2123 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2124 * will be used in ht_capa. Un-supported values will be ignored.
2125 * @ht_capa_mask: The bits of ht_capa which are to be used.
2126 * @vht_capa: VHT Capability overrides
2127 * @vht_capa_mask: The bits of vht_capa which are to be used.
2128 * @pbss: if set, connect to a PCP instead of AP. Valid for DMG
2130 * @bss_select: criteria to be used for BSS selection.
2131 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
2132 * to indicate a request to reassociate within the ESS instead of a request
2133 * do the initial association with the ESS. When included, this is set to
2134 * the BSSID of the current association, i.e., to the value that is
2135 * included in the Current AP address field of the Reassociation Request
2137 * @fils_erp_username: EAP re-authentication protocol (ERP) username part of the
2138 * NAI or %NULL if not specified. This is used to construct FILS wrapped
2140 * @fils_erp_username_len: Length of @fils_erp_username in octets.
2141 * @fils_erp_realm: EAP re-authentication protocol (ERP) realm part of NAI or
2142 * %NULL if not specified. This specifies the domain name of ER server and
2143 * is used to construct FILS wrapped data IE.
2144 * @fils_erp_realm_len: Length of @fils_erp_realm in octets.
2145 * @fils_erp_next_seq_num: The next sequence number to use in the FILS ERP
2146 * messages. This is also used to construct FILS wrapped data IE.
2147 * @fils_erp_rrk: ERP re-authentication Root Key (rRK) used to derive additional
2148 * keys in FILS or %NULL if not specified.
2149 * @fils_erp_rrk_len: Length of @fils_erp_rrk in octets.
2150 * @want_1x: indicates user-space supports and wants to use 802.1X driver
2151 * offload of 4-way handshake.
2153 struct cfg80211_connect_params {
2154 struct ieee80211_channel *channel;
2155 struct ieee80211_channel *channel_hint;
2157 const u8 *bssid_hint;
2160 enum nl80211_auth_type auth_type;
2164 enum nl80211_mfp mfp;
2165 struct cfg80211_crypto_settings crypto;
2167 u8 key_len, key_idx;
2170 struct ieee80211_ht_cap ht_capa;
2171 struct ieee80211_ht_cap ht_capa_mask;
2172 struct ieee80211_vht_cap vht_capa;
2173 struct ieee80211_vht_cap vht_capa_mask;
2175 struct cfg80211_bss_selection bss_select;
2176 const u8 *prev_bssid;
2177 const u8 *fils_erp_username;
2178 size_t fils_erp_username_len;
2179 const u8 *fils_erp_realm;
2180 size_t fils_erp_realm_len;
2181 u16 fils_erp_next_seq_num;
2182 const u8 *fils_erp_rrk;
2183 size_t fils_erp_rrk_len;
2188 * enum cfg80211_connect_params_changed - Connection parameters being updated
2190 * This enum provides information of all connect parameters that
2191 * have to be updated as part of update_connect_params() call.
2193 * @UPDATE_ASSOC_IES: Indicates whether association request IEs are updated
2195 enum cfg80211_connect_params_changed {
2196 UPDATE_ASSOC_IES = BIT(0),
2200 * enum wiphy_params_flags - set_wiphy_params bitfield values
2201 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
2202 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
2203 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
2204 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
2205 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
2206 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
2208 enum wiphy_params_flags {
2209 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
2210 WIPHY_PARAM_RETRY_LONG = 1 << 1,
2211 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
2212 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
2213 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
2214 WIPHY_PARAM_DYN_ACK = 1 << 5,
2218 * struct cfg80211_pmksa - PMK Security Association
2220 * This structure is passed to the set/del_pmksa() method for PMKSA
2223 * @bssid: The AP's BSSID (may be %NULL).
2224 * @pmkid: The identifier to refer a PMKSA.
2225 * @pmk: The PMK for the PMKSA identified by @pmkid. This is used for key
2226 * derivation by a FILS STA. Otherwise, %NULL.
2227 * @pmk_len: Length of the @pmk. The length of @pmk can differ depending on
2228 * the hash algorithm used to generate this.
2229 * @ssid: SSID to specify the ESS within which a PMKSA is valid when using FILS
2230 * cache identifier (may be %NULL).
2231 * @ssid_len: Length of the @ssid in octets.
2232 * @cache_id: 2-octet cache identifier advertized by a FILS AP identifying the
2233 * scope of PMKSA. This is valid only if @ssid_len is non-zero (may be
2236 struct cfg80211_pmksa {
2247 * struct cfg80211_pkt_pattern - packet pattern
2248 * @mask: bitmask where to match pattern and where to ignore bytes,
2249 * one bit per byte, in same format as nl80211
2250 * @pattern: bytes to match where bitmask is 1
2251 * @pattern_len: length of pattern (in bytes)
2252 * @pkt_offset: packet offset (in bytes)
2254 * Internal note: @mask and @pattern are allocated in one chunk of
2255 * memory, free @mask only!
2257 struct cfg80211_pkt_pattern {
2258 const u8 *mask, *pattern;
2264 * struct cfg80211_wowlan_tcp - TCP connection parameters
2266 * @sock: (internal) socket for source port allocation
2267 * @src: source IP address
2268 * @dst: destination IP address
2269 * @dst_mac: destination MAC address
2270 * @src_port: source port
2271 * @dst_port: destination port
2272 * @payload_len: data payload length
2273 * @payload: data payload buffer
2274 * @payload_seq: payload sequence stamping configuration
2275 * @data_interval: interval at which to send data packets
2276 * @wake_len: wakeup payload match length
2277 * @wake_data: wakeup payload match data
2278 * @wake_mask: wakeup payload match mask
2279 * @tokens_size: length of the tokens buffer
2280 * @payload_tok: payload token usage configuration
2282 struct cfg80211_wowlan_tcp {
2283 struct socket *sock;
2285 u16 src_port, dst_port;
2286 u8 dst_mac[ETH_ALEN];
2289 struct nl80211_wowlan_tcp_data_seq payload_seq;
2292 const u8 *wake_data, *wake_mask;
2294 /* must be last, variable member */
2295 struct nl80211_wowlan_tcp_data_token payload_tok;
2299 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
2301 * This structure defines the enabled WoWLAN triggers for the device.
2302 * @any: wake up on any activity -- special trigger if device continues
2303 * operating as normal during suspend
2304 * @disconnect: wake up if getting disconnected
2305 * @magic_pkt: wake up on receiving magic packet
2306 * @patterns: wake up on receiving packet matching a pattern
2307 * @n_patterns: number of patterns
2308 * @gtk_rekey_failure: wake up on GTK rekey failure
2309 * @eap_identity_req: wake up on EAP identity request packet
2310 * @four_way_handshake: wake up on 4-way handshake
2311 * @rfkill_release: wake up when rfkill is released
2312 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
2313 * NULL if not configured.
2314 * @nd_config: configuration for the scan to be used for net detect wake.
2316 struct cfg80211_wowlan {
2317 bool any, disconnect, magic_pkt, gtk_rekey_failure,
2318 eap_identity_req, four_way_handshake,
2320 struct cfg80211_pkt_pattern *patterns;
2321 struct cfg80211_wowlan_tcp *tcp;
2323 struct cfg80211_sched_scan_request *nd_config;
2327 * struct cfg80211_coalesce_rules - Coalesce rule parameters
2329 * This structure defines coalesce rule for the device.
2330 * @delay: maximum coalescing delay in msecs.
2331 * @condition: condition for packet coalescence.
2332 * see &enum nl80211_coalesce_condition.
2333 * @patterns: array of packet patterns
2334 * @n_patterns: number of patterns
2336 struct cfg80211_coalesce_rules {
2338 enum nl80211_coalesce_condition condition;
2339 struct cfg80211_pkt_pattern *patterns;
2344 * struct cfg80211_coalesce - Packet coalescing settings
2346 * This structure defines coalescing settings.
2347 * @rules: array of coalesce rules
2348 * @n_rules: number of rules
2350 struct cfg80211_coalesce {
2351 struct cfg80211_coalesce_rules *rules;
2356 * struct cfg80211_wowlan_nd_match - information about the match
2358 * @ssid: SSID of the match that triggered the wake up
2359 * @n_channels: Number of channels where the match occurred. This
2360 * value may be zero if the driver can't report the channels.
2361 * @channels: center frequencies of the channels where a match
2364 struct cfg80211_wowlan_nd_match {
2365 struct cfg80211_ssid ssid;
2371 * struct cfg80211_wowlan_nd_info - net detect wake up information
2373 * @n_matches: Number of match information instances provided in
2374 * @matches. This value may be zero if the driver can't provide
2375 * match information.
2376 * @matches: Array of pointers to matches containing information about
2377 * the matches that triggered the wake up.
2379 struct cfg80211_wowlan_nd_info {
2381 struct cfg80211_wowlan_nd_match *matches[];
2385 * struct cfg80211_wowlan_wakeup - wakeup report
2386 * @disconnect: woke up by getting disconnected
2387 * @magic_pkt: woke up by receiving magic packet
2388 * @gtk_rekey_failure: woke up by GTK rekey failure
2389 * @eap_identity_req: woke up by EAP identity request packet
2390 * @four_way_handshake: woke up by 4-way handshake
2391 * @rfkill_release: woke up by rfkill being released
2392 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
2393 * @packet_present_len: copied wakeup packet data
2394 * @packet_len: original wakeup packet length
2395 * @packet: The packet causing the wakeup, if any.
2396 * @packet_80211: For pattern match, magic packet and other data
2397 * frame triggers an 802.3 frame should be reported, for
2398 * disconnect due to deauth 802.11 frame. This indicates which
2400 * @tcp_match: TCP wakeup packet received
2401 * @tcp_connlost: TCP connection lost or failed to establish
2402 * @tcp_nomoretokens: TCP data ran out of tokens
2403 * @net_detect: if not %NULL, woke up because of net detect
2405 struct cfg80211_wowlan_wakeup {
2406 bool disconnect, magic_pkt, gtk_rekey_failure,
2407 eap_identity_req, four_way_handshake,
2408 rfkill_release, packet_80211,
2409 tcp_match, tcp_connlost, tcp_nomoretokens;
2411 u32 packet_present_len, packet_len;
2413 struct cfg80211_wowlan_nd_info *net_detect;
2417 * struct cfg80211_gtk_rekey_data - rekey data
2418 * @kek: key encryption key (NL80211_KEK_LEN bytes)
2419 * @kck: key confirmation key (NL80211_KCK_LEN bytes)
2420 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
2422 struct cfg80211_gtk_rekey_data {
2423 const u8 *kek, *kck, *replay_ctr;
2427 * struct cfg80211_update_ft_ies_params - FT IE Information
2429 * This structure provides information needed to update the fast transition IE
2431 * @md: The Mobility Domain ID, 2 Octet value
2432 * @ie: Fast Transition IEs
2433 * @ie_len: Length of ft_ie in octets
2435 struct cfg80211_update_ft_ies_params {
2442 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
2444 * This structure provides information needed to transmit a mgmt frame
2446 * @chan: channel to use
2447 * @offchan: indicates wether off channel operation is required
2448 * @wait: duration for ROC
2449 * @buf: buffer to transmit
2450 * @len: buffer length
2451 * @no_cck: don't use cck rates for this frame
2452 * @dont_wait_for_ack: tells the low level not to wait for an ack
2453 * @n_csa_offsets: length of csa_offsets array
2454 * @csa_offsets: array of all the csa offsets in the frame
2456 struct cfg80211_mgmt_tx_params {
2457 struct ieee80211_channel *chan;
2463 bool dont_wait_for_ack;
2465 const u16 *csa_offsets;
2469 * struct cfg80211_dscp_exception - DSCP exception
2471 * @dscp: DSCP value that does not adhere to the user priority range definition
2472 * @up: user priority value to which the corresponding DSCP value belongs
2474 struct cfg80211_dscp_exception {
2480 * struct cfg80211_dscp_range - DSCP range definition for user priority
2482 * @low: lowest DSCP value of this user priority range, inclusive
2483 * @high: highest DSCP value of this user priority range, inclusive
2485 struct cfg80211_dscp_range {
2490 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2491 #define IEEE80211_QOS_MAP_MAX_EX 21
2492 #define IEEE80211_QOS_MAP_LEN_MIN 16
2493 #define IEEE80211_QOS_MAP_LEN_MAX \
2494 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2497 * struct cfg80211_qos_map - QoS Map Information
2499 * This struct defines the Interworking QoS map setting for DSCP values
2501 * @num_des: number of DSCP exceptions (0..21)
2502 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2503 * the user priority DSCP range definition
2504 * @up: DSCP range definition for a particular user priority
2506 struct cfg80211_qos_map {
2508 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX];
2509 struct cfg80211_dscp_range up[8];
2513 * struct cfg80211_nan_conf - NAN configuration
2515 * This struct defines NAN configuration parameters
2517 * @master_pref: master preference (1 - 255)
2518 * @bands: operating bands, a bitmap of &enum nl80211_band values.
2519 * For instance, for NL80211_BAND_2GHZ, bit 0 would be set
2520 * (i.e. BIT(NL80211_BAND_2GHZ)).
2522 struct cfg80211_nan_conf {
2528 * enum cfg80211_nan_conf_changes - indicates changed fields in NAN
2531 * @CFG80211_NAN_CONF_CHANGED_PREF: master preference
2532 * @CFG80211_NAN_CONF_CHANGED_BANDS: operating bands
2534 enum cfg80211_nan_conf_changes {
2535 CFG80211_NAN_CONF_CHANGED_PREF = BIT(0),
2536 CFG80211_NAN_CONF_CHANGED_BANDS = BIT(1),
2540 * struct cfg80211_nan_func_filter - a NAN function Rx / Tx filter
2542 * @filter: the content of the filter
2543 * @len: the length of the filter
2545 struct cfg80211_nan_func_filter {
2551 * struct cfg80211_nan_func - a NAN function
2553 * @type: &enum nl80211_nan_function_type
2554 * @service_id: the service ID of the function
2555 * @publish_type: &nl80211_nan_publish_type
2556 * @close_range: if true, the range should be limited. Threshold is
2557 * implementation specific.
2558 * @publish_bcast: if true, the solicited publish should be broadcasted
2559 * @subscribe_active: if true, the subscribe is active
2560 * @followup_id: the instance ID for follow up
2561 * @followup_reqid: the requestor instance ID for follow up
2562 * @followup_dest: MAC address of the recipient of the follow up
2563 * @ttl: time to live counter in DW.
2564 * @serv_spec_info: Service Specific Info
2565 * @serv_spec_info_len: Service Specific Info length
2566 * @srf_include: if true, SRF is inclusive
2567 * @srf_bf: Bloom Filter
2568 * @srf_bf_len: Bloom Filter length
2569 * @srf_bf_idx: Bloom Filter index
2570 * @srf_macs: SRF MAC addresses
2571 * @srf_num_macs: number of MAC addresses in SRF
2572 * @rx_filters: rx filters that are matched with corresponding peer's tx_filter
2573 * @tx_filters: filters that should be transmitted in the SDF.
2574 * @num_rx_filters: length of &rx_filters.
2575 * @num_tx_filters: length of &tx_filters.
2576 * @instance_id: driver allocated id of the function.
2577 * @cookie: unique NAN function identifier.
2579 struct cfg80211_nan_func {
2580 enum nl80211_nan_function_type type;
2581 u8 service_id[NL80211_NAN_FUNC_SERVICE_ID_LEN];
2585 bool subscribe_active;
2588 struct mac_address followup_dest;
2590 const u8 *serv_spec_info;
2591 u8 serv_spec_info_len;
2596 struct mac_address *srf_macs;
2598 struct cfg80211_nan_func_filter *rx_filters;
2599 struct cfg80211_nan_func_filter *tx_filters;
2607 * struct cfg80211_pmk_conf - PMK configuration
2609 * @aa: authenticator address
2610 * @pmk_len: PMK length in bytes.
2611 * @pmk: the PMK material
2612 * @pmk_r0_name: PMK-R0 Name. NULL if not applicable (i.e., the PMK
2613 * is not PMK-R0). When pmk_r0_name is not NULL, the pmk field
2616 struct cfg80211_pmk_conf {
2620 const u8 *pmk_r0_name;
2624 * struct cfg80211_external_auth_params - Trigger External authentication.
2626 * Commonly used across the external auth request and event interfaces.
2628 * @action: action type / trigger for external authentication. Only significant
2629 * for the authentication request event interface (driver to user space).
2630 * @bssid: BSSID of the peer with which the authentication has
2631 * to happen. Used by both the authentication request event and
2632 * authentication response command interface.
2633 * @ssid: SSID of the AP. Used by both the authentication request event and
2634 * authentication response command interface.
2635 * @key_mgmt_suite: AKM suite of the respective authentication. Used by the
2636 * authentication request event interface.
2637 * @status: status code, %WLAN_STATUS_SUCCESS for successful authentication,
2638 * use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space cannot give you
2639 * the real status code for failures. Used only for the authentication
2640 * response command interface (user space to driver).
2642 struct cfg80211_external_auth_params {
2643 enum nl80211_external_auth_action action;
2644 u8 bssid[ETH_ALEN] __aligned(2);
2645 struct cfg80211_ssid ssid;
2646 unsigned int key_mgmt_suite;
2651 * struct cfg80211_ops - backend description for wireless configuration
2653 * This struct is registered by fullmac card drivers and/or wireless stacks
2654 * in order to handle configuration requests on their interfaces.
2656 * All callbacks except where otherwise noted should return 0
2657 * on success or a negative error code.
2659 * All operations are currently invoked under rtnl for consistency with the
2660 * wireless extensions but this is subject to reevaluation as soon as this
2661 * code is used more widely and we have a first user without wext.
2663 * @suspend: wiphy device needs to be suspended. The variable @wow will
2664 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2665 * configured for the device.
2666 * @resume: wiphy device needs to be resumed
2667 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2668 * to call device_set_wakeup_enable() to enable/disable wakeup from
2671 * @add_virtual_intf: create a new virtual interface with the given name,
2672 * must set the struct wireless_dev's iftype. Beware: You must create
2673 * the new netdev in the wiphy's network namespace! Returns the struct
2674 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2675 * also set the address member in the wdev.
2677 * @del_virtual_intf: remove the virtual interface
2679 * @change_virtual_intf: change type/configuration of virtual interface,
2680 * keep the struct wireless_dev's iftype updated.
2682 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2683 * when adding a group key.
2685 * @get_key: get information about the key with the given parameters.
2686 * @mac_addr will be %NULL when requesting information for a group
2687 * key. All pointers given to the @callback function need not be valid
2688 * after it returns. This function should return an error if it is
2689 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2691 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2692 * and @key_index, return -ENOENT if the key doesn't exist.
2694 * @set_default_key: set the default key on an interface
2696 * @set_default_mgmt_key: set the default management frame key on an interface
2698 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2700 * @start_ap: Start acting in AP mode defined by the parameters.
2701 * @change_beacon: Change the beacon parameters for an access point mode
2702 * interface. This should reject the call when AP mode wasn't started.
2703 * @stop_ap: Stop being an AP, including stopping beaconing.
2705 * @add_station: Add a new station.
2706 * @del_station: Remove a station
2707 * @change_station: Modify a given station. Note that flags changes are not much
2708 * validated in cfg80211, in particular the auth/assoc/authorized flags
2709 * might come to the driver in invalid combinations -- make sure to check
2710 * them, also against the existing state! Drivers must call
2711 * cfg80211_check_station_change() to validate the information.
2712 * @get_station: get station information for the station identified by @mac
2713 * @dump_station: dump station callback -- resume dump at index @idx
2715 * @add_mpath: add a fixed mesh path
2716 * @del_mpath: delete a given mesh path
2717 * @change_mpath: change a given mesh path
2718 * @get_mpath: get a mesh path for the given parameters
2719 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2720 * @get_mpp: get a mesh proxy path for the given parameters
2721 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
2722 * @join_mesh: join the mesh network with the specified parameters
2723 * (invoked with the wireless_dev mutex held)
2724 * @leave_mesh: leave the current mesh network
2725 * (invoked with the wireless_dev mutex held)
2727 * @get_mesh_config: Get the current mesh configuration
2729 * @update_mesh_config: Update mesh parameters on a running mesh.
2730 * The mask is a bitfield which tells us which parameters to
2731 * set, and which to leave alone.
2733 * @change_bss: Modify parameters for a given BSS.
2735 * @set_txq_params: Set TX queue parameters
2737 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2738 * as it doesn't implement join_mesh and needs to set the channel to
2739 * join the mesh instead.
2741 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2742 * interfaces are active this callback should reject the configuration.
2743 * If no interfaces are active or the device is down, the channel should
2744 * be stored for when a monitor interface becomes active.
2746 * @scan: Request to do a scan. If returning zero, the scan request is given
2747 * the driver, and will be valid until passed to cfg80211_scan_done().
2748 * For scan results, call cfg80211_inform_bss(); you can call this outside
2749 * the scan/scan_done bracket too.
2750 * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall
2751 * indicate the status of the scan through cfg80211_scan_done().
2753 * @auth: Request to authenticate with the specified peer
2754 * (invoked with the wireless_dev mutex held)
2755 * @assoc: Request to (re)associate with the specified peer
2756 * (invoked with the wireless_dev mutex held)
2757 * @deauth: Request to deauthenticate from the specified peer
2758 * (invoked with the wireless_dev mutex held)
2759 * @disassoc: Request to disassociate from the specified peer
2760 * (invoked with the wireless_dev mutex held)
2762 * @connect: Connect to the ESS with the specified parameters. When connected,
2763 * call cfg80211_connect_result()/cfg80211_connect_bss() with status code
2764 * %WLAN_STATUS_SUCCESS. If the connection fails for some reason, call
2765 * cfg80211_connect_result()/cfg80211_connect_bss() with the status code
2766 * from the AP or cfg80211_connect_timeout() if no frame with status code
2768 * The driver is allowed to roam to other BSSes within the ESS when the
2769 * other BSS matches the connect parameters. When such roaming is initiated
2770 * by the driver, the driver is expected to verify that the target matches
2771 * the configured security parameters and to use Reassociation Request
2772 * frame instead of Association Request frame.
2773 * The connect function can also be used to request the driver to perform a
2774 * specific roam when connected to an ESS. In that case, the prev_bssid
2775 * parameter is set to the BSSID of the currently associated BSS as an
2776 * indication of requesting reassociation.
2777 * In both the driver-initiated and new connect() call initiated roaming
2778 * cases, the result of roaming is indicated with a call to
2779 * cfg80211_roamed(). (invoked with the wireless_dev mutex held)
2780 * @update_connect_params: Update the connect parameters while connected to a
2781 * BSS. The updated parameters can be used by driver/firmware for
2782 * subsequent BSS selection (roaming) decisions and to form the
2783 * Authentication/(Re)Association Request frames. This call does not
2784 * request an immediate disassociation or reassociation with the current
2785 * BSS, i.e., this impacts only subsequent (re)associations. The bits in
2786 * changed are defined in &enum cfg80211_connect_params_changed.
2787 * (invoked with the wireless_dev mutex held)
2788 * @disconnect: Disconnect from the BSS/ESS or stop connection attempts if
2789 * connection is in progress. Once done, call cfg80211_disconnected() in
2790 * case connection was already established (invoked with the
2791 * wireless_dev mutex held), otherwise call cfg80211_connect_timeout().
2793 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2794 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2796 * (invoked with the wireless_dev mutex held)
2797 * @leave_ibss: Leave the IBSS.
2798 * (invoked with the wireless_dev mutex held)
2800 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2803 * @set_wiphy_params: Notify that wiphy parameters have changed;
2804 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2805 * have changed. The actual parameter values are available in
2806 * struct wiphy. If returning an error, no value should be changed.
2808 * @set_tx_power: set the transmit power according to the parameters,
2809 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2810 * wdev may be %NULL if power was set for the wiphy, and will
2811 * always be %NULL unless the driver supports per-vif TX power
2812 * (as advertised by the nl80211 feature flag.)
2813 * @get_tx_power: store the current TX power into the dbm variable;
2814 * return 0 if successful
2816 * @set_wds_peer: set the WDS peer for a WDS interface
2818 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2819 * functions to adjust rfkill hw state
2821 * @dump_survey: get site survey information.
2823 * @remain_on_channel: Request the driver to remain awake on the specified
2824 * channel for the specified duration to complete an off-channel
2825 * operation (e.g., public action frame exchange). When the driver is
2826 * ready on the requested channel, it must indicate this with an event
2827 * notification by calling cfg80211_ready_on_channel().
2828 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2829 * This allows the operation to be terminated prior to timeout based on
2830 * the duration value.
2831 * @mgmt_tx: Transmit a management frame.
2832 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2833 * frame on another channel
2835 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2836 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2837 * used by the function, but 0 and 1 must not be touched. Additionally,
2838 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2839 * dump and return to userspace with an error, so be careful. If any data
2840 * was passed in from userspace then the data/len arguments will be present
2841 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2843 * @set_bitrate_mask: set the bitrate mask configuration
2845 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2846 * devices running firmwares capable of generating the (re) association
2847 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2848 * @del_pmksa: Delete a cached PMKID.
2849 * @flush_pmksa: Flush all cached PMKIDs.
2850 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2851 * allows the driver to adjust the dynamic ps timeout value.
2852 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2853 * After configuration, the driver should (soon) send an event indicating
2854 * the current level is above/below the configured threshold; this may
2855 * need some care when the configuration is changed (without first being
2857 * @set_cqm_rssi_range_config: Configure two RSSI thresholds in the
2858 * connection quality monitor. An event is to be sent only when the
2859 * signal level is found to be outside the two values. The driver should
2860 * set %NL80211_EXT_FEATURE_CQM_RSSI_LIST if this method is implemented.
2861 * If it is provided then there's no point providing @set_cqm_rssi_config.
2862 * @set_cqm_txe_config: Configure connection quality monitor TX error
2864 * @sched_scan_start: Tell the driver to start a scheduled scan.
2865 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan with
2866 * given request id. This call must stop the scheduled scan and be ready
2867 * for starting a new one before it returns, i.e. @sched_scan_start may be
2868 * called immediately after that again and should not fail in that case.
2869 * The driver should not call cfg80211_sched_scan_stopped() for a requested
2870 * stop (when this method returns 0).
2872 * @mgmt_frame_register: Notify driver that a management frame type was
2873 * registered. The callback is allowed to sleep.
2875 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2876 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2877 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2878 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2880 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2882 * @tdls_mgmt: Transmit a TDLS management frame.
2883 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2885 * @probe_client: probe an associated client, must return a cookie that it
2886 * later passes to cfg80211_probe_status().
2888 * @set_noack_map: Set the NoAck Map for the TIDs.
2890 * @get_channel: Get the current operating channel for the virtual interface.
2891 * For monitor interfaces, it should return %NULL unless there's a single
2892 * current monitoring channel.
2894 * @start_p2p_device: Start the given P2P device.
2895 * @stop_p2p_device: Stop the given P2P device.
2897 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2898 * Parameters include ACL policy, an array of MAC address of stations
2899 * and the number of MAC addresses. If there is already a list in driver
2900 * this new list replaces the existing one. Driver has to clear its ACL
2901 * when number of MAC addresses entries is passed as 0. Drivers which
2902 * advertise the support for MAC based ACL have to implement this callback.
2904 * @start_radar_detection: Start radar detection in the driver.
2906 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2907 * driver. If the SME is in the driver/firmware, this information can be
2908 * used in building Authentication and Reassociation Request frames.
2910 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2911 * for a given duration (milliseconds). The protocol is provided so the
2912 * driver can take the most appropriate actions.
2913 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2914 * reliability. This operation can not fail.
2915 * @set_coalesce: Set coalesce parameters.
2917 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
2918 * responsible for veryfing if the switch is possible. Since this is
2919 * inherently tricky driver may decide to disconnect an interface later
2920 * with cfg80211_stop_iface(). This doesn't mean driver can accept
2921 * everything. It should do it's best to verify requests and reject them
2922 * as soon as possible.
2924 * @set_qos_map: Set QoS mapping information to the driver
2926 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2927 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2928 * changes during the lifetime of the BSS.
2930 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
2931 * with the given parameters; action frame exchange has been handled by
2932 * userspace so this just has to modify the TX path to take the TS into
2934 * If the admitted time is 0 just validate the parameters to make sure
2935 * the session can be created at all; it is valid to just always return
2936 * success for that but that may result in inefficient behaviour (handshake
2937 * with the peer followed by immediate teardown when the addition is later
2939 * @del_tx_ts: remove an existing TX TS
2941 * @join_ocb: join the OCB network with the specified parameters
2942 * (invoked with the wireless_dev mutex held)
2943 * @leave_ocb: leave the current OCB network
2944 * (invoked with the wireless_dev mutex held)
2946 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
2947 * is responsible for continually initiating channel-switching operations
2948 * and returning to the base channel for communication with the AP.
2949 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
2950 * peers must be on the base channel when the call completes.
2951 * @start_nan: Start the NAN interface.
2952 * @stop_nan: Stop the NAN interface.
2953 * @add_nan_func: Add a NAN function. Returns negative value on failure.
2954 * On success @nan_func ownership is transferred to the driver and
2955 * it may access it outside of the scope of this function. The driver
2956 * should free the @nan_func when no longer needed by calling
2957 * cfg80211_free_nan_func().
2958 * On success the driver should assign an instance_id in the
2959 * provided @nan_func.
2960 * @del_nan_func: Delete a NAN function.
2961 * @nan_change_conf: changes NAN configuration. The changed parameters must
2962 * be specified in @changes (using &enum cfg80211_nan_conf_changes);
2963 * All other parameters must be ignored.
2965 * @set_multicast_to_unicast: configure multicast to unicast conversion for BSS
2967 * @set_pmk: configure the PMK to be used for offloaded 802.1X 4-Way handshake.
2968 * If not deleted through @del_pmk the PMK remains valid until disconnect
2969 * upon which the driver should clear it.
2970 * (invoked with the wireless_dev mutex held)
2971 * @del_pmk: delete the previously configured PMK for the given authenticator.
2972 * (invoked with the wireless_dev mutex held)
2974 * @external_auth: indicates result of offloaded authentication processing from
2977 * @tx_control_port: TX a control port frame (EAPoL). The noencrypt parameter
2978 * tells the driver that the frame should not be encrypted.
2980 struct cfg80211_ops {
2981 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
2982 int (*resume)(struct wiphy *wiphy);
2983 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
2985 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
2987 unsigned char name_assign_type,
2988 enum nl80211_iftype type,
2989 struct vif_params *params);
2990 int (*del_virtual_intf)(struct wiphy *wiphy,
2991 struct wireless_dev *wdev);
2992 int (*change_virtual_intf)(struct wiphy *wiphy,
2993 struct net_device *dev,
2994 enum nl80211_iftype type,
2995 struct vif_params *params);
2997 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
2998 u8 key_index, bool pairwise, const u8 *mac_addr,
2999 struct key_params *params);
3000 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
3001 u8 key_index, bool pairwise, const u8 *mac_addr,
3003 void (*callback)(void *cookie, struct key_params*));
3004 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
3005 u8 key_index, bool pairwise, const u8 *mac_addr);
3006 int (*set_default_key)(struct wiphy *wiphy,
3007 struct net_device *netdev,
3008 u8 key_index, bool unicast, bool multicast);
3009 int (*set_default_mgmt_key)(struct wiphy *wiphy,
3010 struct net_device *netdev,
3013 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
3014 struct cfg80211_ap_settings *settings);
3015 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
3016 struct cfg80211_beacon_data *info);
3017 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
3020 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
3022 struct station_parameters *params);
3023 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
3024 struct station_del_parameters *params);
3025 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
3027 struct station_parameters *params);
3028 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
3029 const u8 *mac, struct station_info *sinfo);
3030 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
3031 int idx, u8 *mac, struct station_info *sinfo);
3033 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
3034 const u8 *dst, const u8 *next_hop);
3035 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
3037 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
3038 const u8 *dst, const u8 *next_hop);
3039 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
3040 u8 *dst, u8 *next_hop, struct mpath_info *pinfo);
3041 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
3042 int idx, u8 *dst, u8 *next_hop,
3043 struct mpath_info *pinfo);
3044 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev,
3045 u8 *dst, u8 *mpp, struct mpath_info *pinfo);
3046 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev,
3047 int idx, u8 *dst, u8 *mpp,
3048 struct mpath_info *pinfo);
3049 int (*get_mesh_config)(struct wiphy *wiphy,
3050 struct net_device *dev,
3051 struct mesh_config *conf);
3052 int (*update_mesh_config)(struct wiphy *wiphy,
3053 struct net_device *dev, u32 mask,
3054 const struct mesh_config *nconf);
3055 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
3056 const struct mesh_config *conf,
3057 const struct mesh_setup *setup);
3058 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
3060 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev,
3061 struct ocb_setup *setup);
3062 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev);
3064 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
3065 struct bss_parameters *params);
3067 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
3068 struct ieee80211_txq_params *params);
3070 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
3071 struct net_device *dev,
3072 struct ieee80211_channel *chan);
3074 int (*set_monitor_channel)(struct wiphy *wiphy,
3075 struct cfg80211_chan_def *chandef);
3077 int (*scan)(struct wiphy *wiphy,
3078 struct cfg80211_scan_request *request);
3079 void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev);
3081 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
3082 struct cfg80211_auth_request *req);
3083 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
3084 struct cfg80211_assoc_request *req);
3085 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
3086 struct cfg80211_deauth_request *req);
3087 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
3088 struct cfg80211_disassoc_request *req);
3090 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
3091 struct cfg80211_connect_params *sme);
3092 int (*update_connect_params)(struct wiphy *wiphy,
3093 struct net_device *dev,
3094 struct cfg80211_connect_params *sme,
3096 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
3099 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
3100 struct cfg80211_ibss_params *params);
3101 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
3103 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
3104 int rate[NUM_NL80211_BANDS]);
3106 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
3108 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
3109 enum nl80211_tx_power_setting type, int mbm);
3110 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
3113 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
3116 void (*rfkill_poll)(struct wiphy *wiphy);
3118 #ifdef CONFIG_NL80211_TESTMODE
3119 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev,
3120 void *data, int len);
3121 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
3122 struct netlink_callback *cb,
3123 void *data, int len);
3126 int (*set_bitrate_mask)(struct wiphy *wiphy,
3127 struct net_device *dev,
3129 const struct cfg80211_bitrate_mask *mask);
3131 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
3132 int idx, struct survey_info *info);
3134 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
3135 struct cfg80211_pmksa *pmksa);
3136 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
3137 struct cfg80211_pmksa *pmksa);
3138 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
3140 int (*remain_on_channel)(struct wiphy *wiphy,
3141 struct wireless_dev *wdev,
3142 struct ieee80211_channel *chan,
3143 unsigned int duration,
3145 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
3146 struct wireless_dev *wdev,
3149 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
3150 struct cfg80211_mgmt_tx_params *params,
3152 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
3153 struct wireless_dev *wdev,
3156 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
3157 bool enabled, int timeout);
3159 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
3160 struct net_device *dev,
3161 s32 rssi_thold, u32 rssi_hyst);
3163 int (*set_cqm_rssi_range_config)(struct wiphy *wiphy,
3164 struct net_device *dev,
3165 s32 rssi_low, s32 rssi_high);
3167 int (*set_cqm_txe_config)(struct wiphy *wiphy,
3168 struct net_device *dev,
3169 u32 rate, u32 pkts, u32 intvl);
3171 void (*mgmt_frame_register)(struct wiphy *wiphy,
3172 struct wireless_dev *wdev,
3173 u16 frame_type, bool reg);
3175 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
3176 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
3178 int (*sched_scan_start)(struct wiphy *wiphy,
3179 struct net_device *dev,
3180 struct cfg80211_sched_scan_request *request);
3181 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev,
3184 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
3185 struct cfg80211_gtk_rekey_data *data);
3187 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
3188 const u8 *peer, u8 action_code, u8 dialog_token,
3189 u16 status_code, u32 peer_capability,
3190 bool initiator, const u8 *buf, size_t len);
3191 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
3192 const u8 *peer, enum nl80211_tdls_operation oper);
3194 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
3195 const u8 *peer, u64 *cookie);
3197 int (*set_noack_map)(struct wiphy *wiphy,
3198 struct net_device *dev,
3201 int (*get_channel)(struct wiphy *wiphy,
3202 struct wireless_dev *wdev,
3203 struct cfg80211_chan_def *chandef);
3205 int (*start_p2p_device)(struct wiphy *wiphy,
3206 struct wireless_dev *wdev);
3207 void (*stop_p2p_device)(struct wiphy *wiphy,
3208 struct wireless_dev *wdev);
3210 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
3211 const struct cfg80211_acl_data *params);
3213 int (*start_radar_detection)(struct wiphy *wiphy,
3214 struct net_device *dev,
3215 struct cfg80211_chan_def *chandef,
3217 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
3218 struct cfg80211_update_ft_ies_params *ftie);
3219 int (*crit_proto_start)(struct wiphy *wiphy,
3220 struct wireless_dev *wdev,
3221 enum nl80211_crit_proto_id protocol,
3223 void (*crit_proto_stop)(struct wiphy *wiphy,
3224 struct wireless_dev *wdev);
3225 int (*set_coalesce)(struct wiphy *wiphy,
3226 struct cfg80211_coalesce *coalesce);
3228 int (*channel_switch)(struct wiphy *wiphy,
3229 struct net_device *dev,
3230 struct cfg80211_csa_settings *params);
3232 int (*set_qos_map)(struct wiphy *wiphy,
3233 struct net_device *dev,
3234 struct cfg80211_qos_map *qos_map);
3236 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
3237 struct cfg80211_chan_def *chandef);
3239 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
3240 u8 tsid, const u8 *peer, u8 user_prio,
3242 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
3243 u8 tsid, const u8 *peer);
3245 int (*tdls_channel_switch)(struct wiphy *wiphy,
3246 struct net_device *dev,
3247 const u8 *addr, u8 oper_class,
3248 struct cfg80211_chan_def *chandef);
3249 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy,
3250 struct net_device *dev,
3252 int (*start_nan)(struct wiphy *wiphy, struct wireless_dev *wdev,
3253 struct cfg80211_nan_conf *conf);
3254 void (*stop_nan)(struct wiphy *wiphy, struct wireless_dev *wdev);
3255 int (*add_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3256 struct cfg80211_nan_func *nan_func);
3257 void (*del_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3259 int (*nan_change_conf)(struct wiphy *wiphy,
3260 struct wireless_dev *wdev,
3261 struct cfg80211_nan_conf *conf,
3264 int (*set_multicast_to_unicast)(struct wiphy *wiphy,
3265 struct net_device *dev,
3266 const bool enabled);
3268 int (*set_pmk)(struct wiphy *wiphy, struct net_device *dev,
3269 const struct cfg80211_pmk_conf *conf);
3270 int (*del_pmk)(struct wiphy *wiphy, struct net_device *dev,
3272 int (*external_auth)(struct wiphy *wiphy, struct net_device *dev,
3273 struct cfg80211_external_auth_params *params);
3275 int (*tx_control_port)(struct wiphy *wiphy,
3276 struct net_device *dev,
3277 const u8 *buf, size_t len,
3278 const u8 *dest, const __be16 proto,
3279 const bool noencrypt);
3283 * wireless hardware and networking interfaces structures
3284 * and registration/helper functions
3288 * enum wiphy_flags - wiphy capability flags
3290 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
3292 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
3293 * by default -- this flag will be set depending on the kernel's default
3294 * on wiphy_new(), but can be changed by the driver if it has a good
3295 * reason to override the default
3296 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
3297 * on a VLAN interface)
3298 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
3299 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
3300 * control port protocol ethertype. The device also honours the
3301 * control_port_no_encrypt flag.
3302 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
3303 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
3304 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
3305 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
3307 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
3308 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
3309 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
3310 * link setup/discovery operations internally. Setup, discovery and
3311 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
3312 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
3313 * used for asking the driver/firmware to perform a TDLS operation.
3314 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
3315 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
3316 * when there are virtual interfaces in AP mode by calling
3317 * cfg80211_report_obss_beacon().
3318 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
3319 * responds to probe-requests in hardware.
3320 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
3321 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
3322 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
3323 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
3324 * beaconing mode (AP, IBSS, Mesh, ...).
3325 * @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
3326 * before connection.
3332 WIPHY_FLAG_NETNS_OK = BIT(3),
3333 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
3334 WIPHY_FLAG_4ADDR_AP = BIT(5),
3335 WIPHY_FLAG_4ADDR_STATION = BIT(6),
3336 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
3337 WIPHY_FLAG_IBSS_RSN = BIT(8),
3338 WIPHY_FLAG_MESH_AUTH = BIT(10),
3339 /* use hole at 11 */
3340 /* use hole at 12 */
3341 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
3342 WIPHY_FLAG_AP_UAPSD = BIT(14),
3343 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
3344 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
3345 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
3346 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
3347 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
3348 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
3349 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
3350 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
3351 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
3352 WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
3356 * struct ieee80211_iface_limit - limit on certain interface types
3357 * @max: maximum number of interfaces of these types
3358 * @types: interface types (bits)
3360 struct ieee80211_iface_limit {
3366 * struct ieee80211_iface_combination - possible interface combination
3368 * With this structure the driver can describe which interface
3369 * combinations it supports concurrently.
3373 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
3377 * struct ieee80211_iface_limit limits1[] = {
3378 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3379 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
3381 * struct ieee80211_iface_combination combination1 = {
3382 * .limits = limits1,
3383 * .n_limits = ARRAY_SIZE(limits1),
3384 * .max_interfaces = 2,
3385 * .beacon_int_infra_match = true,
3389 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
3393 * struct ieee80211_iface_limit limits2[] = {
3394 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
3395 * BIT(NL80211_IFTYPE_P2P_GO), },
3397 * struct ieee80211_iface_combination combination2 = {
3398 * .limits = limits2,
3399 * .n_limits = ARRAY_SIZE(limits2),
3400 * .max_interfaces = 8,
3401 * .num_different_channels = 1,
3405 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
3407 * This allows for an infrastructure connection and three P2P connections.
3411 * struct ieee80211_iface_limit limits3[] = {
3412 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3413 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
3414 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
3416 * struct ieee80211_iface_combination combination3 = {
3417 * .limits = limits3,
3418 * .n_limits = ARRAY_SIZE(limits3),
3419 * .max_interfaces = 4,
3420 * .num_different_channels = 2,
3424 struct ieee80211_iface_combination {
3427 * limits for the given interface types
3429 const struct ieee80211_iface_limit *limits;
3432 * @num_different_channels:
3433 * can use up to this many different channels
3435 u32 num_different_channels;
3439 * maximum number of interfaces in total allowed in this group
3445 * number of limitations
3450 * @beacon_int_infra_match:
3451 * In this combination, the beacon intervals between infrastructure
3452 * and AP types must match. This is required only in special cases.
3454 bool beacon_int_infra_match;
3457 * @radar_detect_widths:
3458 * bitmap of channel widths supported for radar detection
3460 u8 radar_detect_widths;
3463 * @radar_detect_regions:
3464 * bitmap of regions supported for radar detection
3466 u8 radar_detect_regions;
3469 * @beacon_int_min_gcd:
3470 * This interface combination supports different beacon intervals.
3473 * all beacon intervals for different interface must be same.
3475 * any beacon interval for the interface part of this combination AND
3476 * GCD of all beacon intervals from beaconing interfaces of this
3477 * combination must be greater or equal to this value.
3479 u32 beacon_int_min_gcd;
3482 struct ieee80211_txrx_stypes {
3487 * enum wiphy_wowlan_support_flags - WoWLAN support flags
3488 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
3489 * trigger that keeps the device operating as-is and
3490 * wakes up the host on any activity, for example a
3491 * received packet that passed filtering; note that the
3492 * packet should be preserved in that case
3493 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
3495 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
3496 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
3497 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
3498 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
3499 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
3500 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
3501 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
3503 enum wiphy_wowlan_support_flags {
3504 WIPHY_WOWLAN_ANY = BIT(0),
3505 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
3506 WIPHY_WOWLAN_DISCONNECT = BIT(2),
3507 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
3508 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
3509 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
3510 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
3511 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
3512 WIPHY_WOWLAN_NET_DETECT = BIT(8),
3515 struct wiphy_wowlan_tcp_support {
3516 const struct nl80211_wowlan_tcp_data_token_feature *tok;
3517 u32 data_payload_max;
3518 u32 data_interval_max;
3519 u32 wake_payload_max;
3524 * struct wiphy_wowlan_support - WoWLAN support data
3525 * @flags: see &enum wiphy_wowlan_support_flags
3526 * @n_patterns: number of supported wakeup patterns
3527 * (see nl80211.h for the pattern definition)
3528 * @pattern_max_len: maximum length of each pattern
3529 * @pattern_min_len: minimum length of each pattern
3530 * @max_pkt_offset: maximum Rx packet offset
3531 * @max_nd_match_sets: maximum number of matchsets for net-detect,
3532 * similar, but not necessarily identical, to max_match_sets for
3534 * See &struct cfg80211_sched_scan_request.@match_sets for more
3536 * @tcp: TCP wakeup support information
3538 struct wiphy_wowlan_support {
3541 int pattern_max_len;
3542 int pattern_min_len;
3544 int max_nd_match_sets;
3545 const struct wiphy_wowlan_tcp_support *tcp;
3549 * struct wiphy_coalesce_support - coalesce support data
3550 * @n_rules: maximum number of coalesce rules
3551 * @max_delay: maximum supported coalescing delay in msecs
3552 * @n_patterns: number of supported patterns in a rule
3553 * (see nl80211.h for the pattern definition)
3554 * @pattern_max_len: maximum length of each pattern
3555 * @pattern_min_len: minimum length of each pattern
3556 * @max_pkt_offset: maximum Rx packet offset
3558 struct wiphy_coalesce_support {
3562 int pattern_max_len;
3563 int pattern_min_len;
3568 * enum wiphy_vendor_command_flags - validation flags for vendor commands
3569 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
3570 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
3571 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
3572 * (must be combined with %_WDEV or %_NETDEV)
3574 enum wiphy_vendor_command_flags {
3575 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0),
3576 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1),
3577 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2),
3581 * enum wiphy_opmode_flag - Station's ht/vht operation mode information flags
3583 * @STA_OPMODE_MAX_BW_CHANGED: Max Bandwidth changed
3584 * @STA_OPMODE_SMPS_MODE_CHANGED: SMPS mode changed
3585 * @STA_OPMODE_N_SS_CHANGED: max N_SS (number of spatial streams) changed
3588 enum wiphy_opmode_flag {
3589 STA_OPMODE_MAX_BW_CHANGED = BIT(0),
3590 STA_OPMODE_SMPS_MODE_CHANGED = BIT(1),
3591 STA_OPMODE_N_SS_CHANGED = BIT(2),
3595 * struct sta_opmode_info - Station's ht/vht operation mode information
3596 * @changed: contains value from &enum wiphy_opmode_flag
3597 * @smps_mode: New SMPS mode value from &enum nl80211_smps_mode of a station
3598 * @bw: new max bandwidth value from &enum nl80211_chan_width of a station
3599 * @rx_nss: new rx_nss value of a station
3602 struct sta_opmode_info {
3604 enum nl80211_smps_mode smps_mode;
3605 enum nl80211_chan_width bw;
3610 * struct wiphy_vendor_command - vendor command definition
3611 * @info: vendor command identifying information, as used in nl80211
3612 * @flags: flags, see &enum wiphy_vendor_command_flags
3613 * @doit: callback for the operation, note that wdev is %NULL if the
3614 * flags didn't ask for a wdev and non-%NULL otherwise; the data
3615 * pointer may be %NULL if userspace provided no data at all
3616 * @dumpit: dump callback, for transferring bigger/multiple items. The
3617 * @storage points to cb->args[5], ie. is preserved over the multiple
3619 * It's recommended to not have the same sub command with both @doit and
3620 * @dumpit, so that userspace can assume certain ones are get and others
3621 * are used with dump requests.
3623 struct wiphy_vendor_command {
3624 struct nl80211_vendor_cmd_info info;
3626 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3627 const void *data, int data_len);
3628 int (*dumpit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3629 struct sk_buff *skb, const void *data, int data_len,
3630 unsigned long *storage);
3634 * struct wiphy_iftype_ext_capab - extended capabilities per interface type
3635 * @iftype: interface type
3636 * @extended_capabilities: extended capabilities supported by the driver,
3637 * additional capabilities might be supported by userspace; these are the
3638 * 802.11 extended capabilities ("Extended Capabilities element") and are
3639 * in the same format as in the information element. See IEEE Std
3640 * 802.11-2012 8.4.2.29 for the defined fields.
3641 * @extended_capabilities_mask: mask of the valid values
3642 * @extended_capabilities_len: length of the extended capabilities
3644 struct wiphy_iftype_ext_capab {
3645 enum nl80211_iftype iftype;
3646 const u8 *extended_capabilities;
3647 const u8 *extended_capabilities_mask;
3648 u8 extended_capabilities_len;
3652 * struct wiphy - wireless hardware description
3653 * @reg_notifier: the driver's regulatory notification callback,
3654 * note that if your driver uses wiphy_apply_custom_regulatory()
3655 * the reg_notifier's request can be passed as NULL
3656 * @regd: the driver's regulatory domain, if one was requested via
3657 * the regulatory_hint() API. This can be used by the driver
3658 * on the reg_notifier() if it chooses to ignore future
3659 * regulatory domain changes caused by other drivers.
3660 * @signal_type: signal type reported in &struct cfg80211_bss.
3661 * @cipher_suites: supported cipher suites
3662 * @n_cipher_suites: number of supported cipher suites
3663 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
3664 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
3665 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
3666 * -1 = fragmentation disabled, only odd values >= 256 used
3667 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
3668 * @_net: the network namespace this wiphy currently lives in
3669 * @perm_addr: permanent MAC address of this device
3670 * @addr_mask: If the device supports multiple MAC addresses by masking,
3671 * set this to a mask with variable bits set to 1, e.g. if the last
3672 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
3673 * variable bits shall be determined by the interfaces added, with
3674 * interfaces not matching the mask being rejected to be brought up.
3675 * @n_addresses: number of addresses in @addresses.
3676 * @addresses: If the device has more than one address, set this pointer
3677 * to a list of addresses (6 bytes each). The first one will be used
3678 * by default for perm_addr. In this case, the mask should be set to
3679 * all-zeroes. In this case it is assumed that the device can handle
3680 * the same number of arbitrary MAC addresses.
3681 * @registered: protects ->resume and ->suspend sysfs callbacks against
3682 * unregister hardware
3683 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
3684 * automatically on wiphy renames
3685 * @dev: (virtual) struct device for this wiphy
3686 * @registered: helps synchronize suspend/resume with wiphy unregister
3687 * @wext: wireless extension handlers
3688 * @priv: driver private data (sized according to wiphy_new() parameter)
3689 * @interface_modes: bitmask of interfaces types valid for this wiphy,
3690 * must be set by driver
3691 * @iface_combinations: Valid interface combinations array, should not
3692 * list single interface types.
3693 * @n_iface_combinations: number of entries in @iface_combinations array.
3694 * @software_iftypes: bitmask of software interface types, these are not
3695 * subject to any restrictions since they are purely managed in SW.
3696 * @flags: wiphy flags, see &enum wiphy_flags
3697 * @regulatory_flags: wiphy regulatory flags, see
3698 * &enum ieee80211_regulatory_flags
3699 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
3700 * @ext_features: extended features advertised to nl80211, see
3701 * &enum nl80211_ext_feature_index.
3702 * @bss_priv_size: each BSS struct has private data allocated with it,
3703 * this variable determines its size
3704 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
3706 * @max_sched_scan_reqs: maximum number of scheduled scan requests that
3707 * the device can run concurrently.
3708 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
3709 * for in any given scheduled scan
3710 * @max_match_sets: maximum number of match sets the device can handle
3711 * when performing a scheduled scan, 0 if filtering is not
3713 * @max_scan_ie_len: maximum length of user-controlled IEs device can
3714 * add to probe request frames transmitted during a scan, must not
3715 * include fixed IEs like supported rates
3716 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
3718 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number
3719 * of iterations) for scheduled scan supported by the device.
3720 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a
3721 * single scan plan supported by the device.
3722 * @max_sched_scan_plan_iterations: maximum number of iterations for a single
3723 * scan plan supported by the device.
3724 * @coverage_class: current coverage class
3725 * @fw_version: firmware version for ethtool reporting
3726 * @hw_version: hardware version for ethtool reporting
3727 * @max_num_pmkids: maximum number of PMKIDs supported by device
3728 * @privid: a pointer that drivers can use to identify if an arbitrary
3729 * wiphy is theirs, e.g. in global notifiers
3730 * @bands: information about bands/channels supported by this device
3732 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
3733 * transmitted through nl80211, points to an array indexed by interface
3736 * @available_antennas_tx: bitmap of antennas which are available to be
3737 * configured as TX antennas. Antenna configuration commands will be
3738 * rejected unless this or @available_antennas_rx is set.
3740 * @available_antennas_rx: bitmap of antennas which are available to be
3741 * configured as RX antennas. Antenna configuration commands will be
3742 * rejected unless this or @available_antennas_tx is set.
3744 * @probe_resp_offload:
3745 * Bitmap of supported protocols for probe response offloading.
3746 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
3747 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3749 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
3750 * may request, if implemented.
3752 * @wowlan: WoWLAN support information
3753 * @wowlan_config: current WoWLAN configuration; this should usually not be
3754 * used since access to it is necessarily racy, use the parameter passed
3755 * to the suspend() operation instead.
3757 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
3758 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
3759 * If null, then none can be over-ridden.
3760 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
3761 * If null, then none can be over-ridden.
3763 * @wdev_list: the list of associated (virtual) interfaces; this list must
3764 * not be modified by the driver, but can be read with RTNL/RCU protection.
3766 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
3769 * @extended_capabilities: extended capabilities supported by the driver,
3770 * additional capabilities might be supported by userspace; these are
3771 * the 802.11 extended capabilities ("Extended Capabilities element")
3772 * and are in the same format as in the information element. See
3773 * 802.11-2012 8.4.2.29 for the defined fields. These are the default
3774 * extended capabilities to be used if the capabilities are not specified
3775 * for a specific interface type in iftype_ext_capab.
3776 * @extended_capabilities_mask: mask of the valid values
3777 * @extended_capabilities_len: length of the extended capabilities
3778 * @iftype_ext_capab: array of extended capabilities per interface type
3779 * @num_iftype_ext_capab: number of interface types for which extended
3780 * capabilities are specified separately.
3781 * @coalesce: packet coalescing support information
3783 * @vendor_commands: array of vendor commands supported by the hardware
3784 * @n_vendor_commands: number of vendor commands
3785 * @vendor_events: array of vendor events supported by the hardware
3786 * @n_vendor_events: number of vendor events
3788 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
3789 * (including P2P GO) or 0 to indicate no such limit is advertised. The
3790 * driver is allowed to advertise a theoretical limit that it can reach in
3791 * some cases, but may not always reach.
3793 * @max_num_csa_counters: Number of supported csa_counters in beacons
3794 * and probe responses. This value should be set if the driver
3795 * wishes to limit the number of csa counters. Default (0) means
3797 * @max_adj_channel_rssi_comp: max offset of between the channel on which the
3798 * frame was sent and the channel on which the frame was heard for which
3799 * the reported rssi is still valid. If a driver is able to compensate the
3800 * low rssi when a frame is heard on different channel, then it should set
3801 * this variable to the maximal offset for which it can compensate.
3802 * This value should be set in MHz.
3803 * @bss_select_support: bitmask indicating the BSS selection criteria supported
3804 * by the driver in the .connect() callback. The bit position maps to the
3805 * attribute indices defined in &enum nl80211_bss_select_attr.
3807 * @cookie_counter: unique generic cookie counter, used to identify objects.
3808 * @nan_supported_bands: bands supported by the device in NAN mode, a
3809 * bitmap of &enum nl80211_band values. For instance, for
3810 * NL80211_BAND_2GHZ, bit 0 would be set
3811 * (i.e. BIT(NL80211_BAND_2GHZ)).
3814 /* assign these fields before you register the wiphy */
3816 /* permanent MAC address(es) */
3817 u8 perm_addr[ETH_ALEN];
3818 u8 addr_mask[ETH_ALEN];
3820 struct mac_address *addresses;
3822 const struct ieee80211_txrx_stypes *mgmt_stypes;
3824 const struct ieee80211_iface_combination *iface_combinations;
3825 int n_iface_combinations;
3826 u16 software_iftypes;
3830 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
3831 u16 interface_modes;
3833 u16 max_acl_mac_addrs;
3835 u32 flags, regulatory_flags, features;
3836 u8 ext_features[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES, 8)];
3840 enum cfg80211_signal_type signal_type;
3844 u8 max_sched_scan_reqs;
3845 u8 max_sched_scan_ssids;
3847 u16 max_scan_ie_len;
3848 u16 max_sched_scan_ie_len;
3849 u32 max_sched_scan_plans;
3850 u32 max_sched_scan_plan_interval;
3851 u32 max_sched_scan_plan_iterations;
3853 int n_cipher_suites;
3854 const u32 *cipher_suites;
3862 char fw_version[ETHTOOL_FWVERS_LEN];
3866 const struct wiphy_wowlan_support *wowlan;
3867 struct cfg80211_wowlan *wowlan_config;
3870 u16 max_remain_on_channel_duration;
3874 u32 available_antennas_tx;
3875 u32 available_antennas_rx;
3878 * Bitmap of supported protocols for probe response offloading
3879 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3880 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3882 u32 probe_resp_offload;
3884 const u8 *extended_capabilities, *extended_capabilities_mask;
3885 u8 extended_capabilities_len;
3887 const struct wiphy_iftype_ext_capab *iftype_ext_capab;
3888 unsigned int num_iftype_ext_capab;
3890 /* If multiple wiphys are registered and you're handed e.g.
3891 * a regular netdev with assigned ieee80211_ptr, you won't
3892 * know whether it points to a wiphy your driver has registered
3893 * or not. Assign this to something global to your driver to
3894 * help determine whether you own this wiphy or not. */
3897 struct ieee80211_supported_band *bands[NUM_NL80211_BANDS];
3899 /* Lets us get back the wiphy on the callback */
3900 void (*reg_notifier)(struct wiphy *wiphy,
3901 struct regulatory_request *request);
3903 /* fields below are read-only, assigned by cfg80211 */
3905 const struct ieee80211_regdomain __rcu *regd;
3907 /* the item in /sys/class/ieee80211/ points to this,
3908 * you need use set_wiphy_dev() (see below) */
3911 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3914 /* dir in debugfs: ieee80211/<wiphyname> */
3915 struct dentry *debugfsdir;
3917 const struct ieee80211_ht_cap *ht_capa_mod_mask;
3918 const struct ieee80211_vht_cap *vht_capa_mod_mask;
3920 struct list_head wdev_list;
3922 /* the network namespace this phy lives in currently */
3923 possible_net_t _net;
3925 #ifdef CONFIG_CFG80211_WEXT
3926 const struct iw_handler_def *wext;
3929 const struct wiphy_coalesce_support *coalesce;
3931 const struct wiphy_vendor_command *vendor_commands;
3932 const struct nl80211_vendor_cmd_info *vendor_events;
3933 int n_vendor_commands, n_vendor_events;
3935 u16 max_ap_assoc_sta;
3937 u8 max_num_csa_counters;
3938 u8 max_adj_channel_rssi_comp;
3940 u32 bss_select_support;
3944 u8 nan_supported_bands;
3946 char priv[0] __aligned(NETDEV_ALIGN);
3949 static inline struct net *wiphy_net(struct wiphy *wiphy)
3951 return read_pnet(&wiphy->_net);
3954 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
3956 write_pnet(&wiphy->_net, net);
3960 * wiphy_priv - return priv from wiphy
3962 * @wiphy: the wiphy whose priv pointer to return
3963 * Return: The priv of @wiphy.
3965 static inline void *wiphy_priv(struct wiphy *wiphy)
3968 return &wiphy->priv;
3972 * priv_to_wiphy - return the wiphy containing the priv
3974 * @priv: a pointer previously returned by wiphy_priv
3975 * Return: The wiphy of @priv.
3977 static inline struct wiphy *priv_to_wiphy(void *priv)
3980 return container_of(priv, struct wiphy, priv);
3984 * set_wiphy_dev - set device pointer for wiphy
3986 * @wiphy: The wiphy whose device to bind
3987 * @dev: The device to parent it to
3989 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
3991 wiphy->dev.parent = dev;
3995 * wiphy_dev - get wiphy dev pointer
3997 * @wiphy: The wiphy whose device struct to look up
3998 * Return: The dev of @wiphy.
4000 static inline struct device *wiphy_dev(struct wiphy *wiphy)
4002 return wiphy->dev.parent;
4006 * wiphy_name - get wiphy name
4008 * @wiphy: The wiphy whose name to return
4009 * Return: The name of @wiphy.
4011 static inline const char *wiphy_name(const struct wiphy *wiphy)
4013 return dev_name(&wiphy->dev);
4017 * wiphy_new_nm - create a new wiphy for use with cfg80211
4019 * @ops: The configuration operations for this device
4020 * @sizeof_priv: The size of the private area to allocate
4021 * @requested_name: Request a particular name.
4022 * NULL is valid value, and means use the default phy%d naming.
4024 * Create a new wiphy and associate the given operations with it.
4025 * @sizeof_priv bytes are allocated for private use.
4027 * Return: A pointer to the new wiphy. This pointer must be
4028 * assigned to each netdev's ieee80211_ptr for proper operation.
4030 struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
4031 const char *requested_name);
4034 * wiphy_new - create a new wiphy for use with cfg80211
4036 * @ops: The configuration operations for this device
4037 * @sizeof_priv: The size of the private area to allocate
4039 * Create a new wiphy and associate the given operations with it.
4040 * @sizeof_priv bytes are allocated for private use.
4042 * Return: A pointer to the new wiphy. This pointer must be
4043 * assigned to each netdev's ieee80211_ptr for proper operation.
4045 static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops,
4048 return wiphy_new_nm(ops, sizeof_priv, NULL);
4052 * wiphy_register - register a wiphy with cfg80211
4054 * @wiphy: The wiphy to register.
4056 * Return: A non-negative wiphy index or a negative error code.
4058 int wiphy_register(struct wiphy *wiphy);
4061 * wiphy_unregister - deregister a wiphy from cfg80211
4063 * @wiphy: The wiphy to unregister.
4065 * After this call, no more requests can be made with this priv
4066 * pointer, but the call may sleep to wait for an outstanding
4067 * request that is being handled.
4069 void wiphy_unregister(struct wiphy *wiphy);
4072 * wiphy_free - free wiphy
4074 * @wiphy: The wiphy to free
4076 void wiphy_free(struct wiphy *wiphy);
4078 /* internal structs */
4079 struct cfg80211_conn;
4080 struct cfg80211_internal_bss;
4081 struct cfg80211_cached_keys;
4082 struct cfg80211_cqm_config;
4085 * struct wireless_dev - wireless device state
4087 * For netdevs, this structure must be allocated by the driver
4088 * that uses the ieee80211_ptr field in struct net_device (this
4089 * is intentional so it can be allocated along with the netdev.)
4090 * It need not be registered then as netdev registration will
4091 * be intercepted by cfg80211 to see the new wireless device.
4093 * For non-netdev uses, it must also be allocated by the driver
4094 * in response to the cfg80211 callbacks that require it, as
4095 * there's no netdev registration in that case it may not be
4096 * allocated outside of callback operations that return it.
4098 * @wiphy: pointer to hardware description
4099 * @iftype: interface type
4100 * @list: (private) Used to collect the interfaces
4101 * @netdev: (private) Used to reference back to the netdev, may be %NULL
4102 * @identifier: (private) Identifier used in nl80211 to identify this
4103 * wireless device if it has no netdev
4104 * @current_bss: (private) Used by the internal configuration code
4105 * @chandef: (private) Used by the internal configuration code to track
4106 * the user-set channel definition.
4107 * @preset_chandef: (private) Used by the internal configuration code to
4108 * track the channel to be used for AP later
4109 * @bssid: (private) Used by the internal configuration code
4110 * @ssid: (private) Used by the internal configuration code
4111 * @ssid_len: (private) Used by the internal configuration code
4112 * @mesh_id_len: (private) Used by the internal configuration code
4113 * @mesh_id_up_len: (private) Used by the internal configuration code
4114 * @wext: (private) Used by the internal wireless extensions compat code
4115 * @use_4addr: indicates 4addr mode is used on this interface, must be
4116 * set by driver (if supported) on add_interface BEFORE registering the
4117 * netdev and may otherwise be used by driver read-only, will be update
4118 * by cfg80211 on change_interface
4119 * @mgmt_registrations: list of registrations for management frames
4120 * @mgmt_registrations_lock: lock for the list
4121 * @mtx: mutex used to lock data in this struct, may be used by drivers
4122 * and some API functions require it held
4123 * @beacon_interval: beacon interval used on this device for transmitting
4124 * beacons, 0 when not valid
4125 * @address: The address for this device, valid only if @netdev is %NULL
4126 * @is_running: true if this is a non-netdev device that has been started, e.g.
4128 * @cac_started: true if DFS channel availability check has been started
4129 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
4130 * @cac_time_ms: CAC time in ms
4131 * @ps: powersave mode is enabled
4132 * @ps_timeout: dynamic powersave timeout
4133 * @ap_unexpected_nlportid: (private) netlink port ID of application
4134 * registered for unexpected class 3 frames (AP mode)
4135 * @conn: (private) cfg80211 software SME connection state machine data
4136 * @connect_keys: (private) keys to set after connection is established
4137 * @conn_bss_type: connecting/connected BSS type
4138 * @conn_owner_nlportid: (private) connection owner socket port ID
4139 * @disconnect_wk: (private) auto-disconnect work
4140 * @disconnect_bssid: (private) the BSSID to use for auto-disconnect
4141 * @ibss_fixed: (private) IBSS is using fixed BSSID
4142 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
4143 * @event_list: (private) list for internal event processing
4144 * @event_lock: (private) lock for event list
4145 * @owner_nlportid: (private) owner socket port ID
4146 * @nl_owner_dead: (private) owner socket went away
4147 * @cqm_config: (private) nl80211 RSSI monitor state
4149 struct wireless_dev {
4150 struct wiphy *wiphy;
4151 enum nl80211_iftype iftype;
4153 /* the remainder of this struct should be private to cfg80211 */
4154 struct list_head list;
4155 struct net_device *netdev;
4159 struct list_head mgmt_registrations;
4160 spinlock_t mgmt_registrations_lock;
4164 bool use_4addr, is_running;
4166 u8 address[ETH_ALEN] __aligned(sizeof(u16));
4168 /* currently used for IBSS and SME - might be rearranged later */
4169 u8 ssid[IEEE80211_MAX_SSID_LEN];
4170 u8 ssid_len, mesh_id_len, mesh_id_up_len;
4171 struct cfg80211_conn *conn;
4172 struct cfg80211_cached_keys *connect_keys;
4173 enum ieee80211_bss_type conn_bss_type;
4174 u32 conn_owner_nlportid;
4176 struct work_struct disconnect_wk;
4177 u8 disconnect_bssid[ETH_ALEN];
4179 struct list_head event_list;
4180 spinlock_t event_lock;
4182 struct cfg80211_internal_bss *current_bss; /* associated / joined */
4183 struct cfg80211_chan_def preset_chandef;
4184 struct cfg80211_chan_def chandef;
4187 bool ibss_dfs_possible;
4192 int beacon_interval;
4194 u32 ap_unexpected_nlportid;
4200 unsigned long cac_start_time;
4201 unsigned int cac_time_ms;
4203 #ifdef CONFIG_CFG80211_WEXT
4206 struct cfg80211_ibss_params ibss;
4207 struct cfg80211_connect_params connect;
4208 struct cfg80211_cached_keys *keys;
4211 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
4212 u8 ssid[IEEE80211_MAX_SSID_LEN];
4213 s8 default_key, default_mgmt_key;
4214 bool prev_bssid_valid;
4218 struct cfg80211_cqm_config *cqm_config;
4221 static inline u8 *wdev_address(struct wireless_dev *wdev)
4224 return wdev->netdev->dev_addr;
4225 return wdev->address;
4228 static inline bool wdev_running(struct wireless_dev *wdev)
4231 return netif_running(wdev->netdev);
4232 return wdev->is_running;
4236 * wdev_priv - return wiphy priv from wireless_dev
4238 * @wdev: The wireless device whose wiphy's priv pointer to return
4239 * Return: The wiphy priv of @wdev.
4241 static inline void *wdev_priv(struct wireless_dev *wdev)
4244 return wiphy_priv(wdev->wiphy);
4248 * DOC: Utility functions
4250 * cfg80211 offers a number of utility functions that can be useful.
4254 * ieee80211_channel_to_frequency - convert channel number to frequency
4255 * @chan: channel number
4256 * @band: band, necessary due to channel number overlap
4257 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
4259 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
4262 * ieee80211_frequency_to_channel - convert frequency to channel number
4263 * @freq: center frequency
4264 * Return: The corresponding channel, or 0 if the conversion failed.
4266 int ieee80211_frequency_to_channel(int freq);
4269 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
4271 * @wiphy: the struct wiphy to get the channel for
4272 * @freq: the center frequency of the channel
4274 * Return: The channel struct from @wiphy at @freq.
4276 struct ieee80211_channel *ieee80211_get_channel(struct wiphy *wiphy, int freq);
4279 * ieee80211_get_response_rate - get basic rate for a given rate
4281 * @sband: the band to look for rates in
4282 * @basic_rates: bitmap of basic rates
4283 * @bitrate: the bitrate for which to find the basic rate
4285 * Return: The basic rate corresponding to a given bitrate, that
4286 * is the next lower bitrate contained in the basic rate map,
4287 * which is, for this function, given as a bitmap of indices of
4288 * rates in the band's bitrate table.
4290 struct ieee80211_rate *
4291 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
4292 u32 basic_rates, int bitrate);
4295 * ieee80211_mandatory_rates - get mandatory rates for a given band
4296 * @sband: the band to look for rates in
4297 * @scan_width: width of the control channel
4299 * This function returns a bitmap of the mandatory rates for the given
4300 * band, bits are set according to the rate position in the bitrates array.
4302 u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband,
4303 enum nl80211_bss_scan_width scan_width);
4306 * Radiotap parsing functions -- for controlled injection support
4308 * Implemented in net/wireless/radiotap.c
4309 * Documentation in Documentation/networking/radiotap-headers.txt
4312 struct radiotap_align_size {
4313 uint8_t align:4, size:4;
4316 struct ieee80211_radiotap_namespace {
4317 const struct radiotap_align_size *align_size;
4323 struct ieee80211_radiotap_vendor_namespaces {
4324 const struct ieee80211_radiotap_namespace *ns;
4329 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
4330 * @this_arg_index: index of current arg, valid after each successful call
4331 * to ieee80211_radiotap_iterator_next()
4332 * @this_arg: pointer to current radiotap arg; it is valid after each
4333 * call to ieee80211_radiotap_iterator_next() but also after
4334 * ieee80211_radiotap_iterator_init() where it will point to
4335 * the beginning of the actual data portion
4336 * @this_arg_size: length of the current arg, for convenience
4337 * @current_namespace: pointer to the current namespace definition
4338 * (or internally %NULL if the current namespace is unknown)
4339 * @is_radiotap_ns: indicates whether the current namespace is the default
4340 * radiotap namespace or not
4342 * @_rtheader: pointer to the radiotap header we are walking through
4343 * @_max_length: length of radiotap header in cpu byte ordering
4344 * @_arg_index: next argument index
4345 * @_arg: next argument pointer
4346 * @_next_bitmap: internal pointer to next present u32
4347 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
4348 * @_vns: vendor namespace definitions
4349 * @_next_ns_data: beginning of the next namespace's data
4350 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
4353 * Describes the radiotap parser state. Fields prefixed with an underscore
4354 * must not be used by users of the parser, only by the parser internally.
4357 struct ieee80211_radiotap_iterator {
4358 struct ieee80211_radiotap_header *_rtheader;
4359 const struct ieee80211_radiotap_vendor_namespaces *_vns;
4360 const struct ieee80211_radiotap_namespace *current_namespace;
4362 unsigned char *_arg, *_next_ns_data;
4363 __le32 *_next_bitmap;
4365 unsigned char *this_arg;
4373 uint32_t _bitmap_shifter;
4378 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator,
4379 struct ieee80211_radiotap_header *radiotap_header,
4381 const struct ieee80211_radiotap_vendor_namespaces *vns);
4384 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator);
4387 extern const unsigned char rfc1042_header[6];
4388 extern const unsigned char bridge_tunnel_header[6];
4391 * ieee80211_get_hdrlen_from_skb - get header length from data
4395 * Given an skb with a raw 802.11 header at the data pointer this function
4396 * returns the 802.11 header length.
4398 * Return: The 802.11 header length in bytes (not including encryption
4399 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
4402 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
4405 * ieee80211_hdrlen - get header length in bytes from frame control
4406 * @fc: frame control field in little-endian format
4407 * Return: The header length in bytes.
4409 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
4412 * ieee80211_get_mesh_hdrlen - get mesh extension header length
4413 * @meshhdr: the mesh extension header, only the flags field
4414 * (first byte) will be accessed
4415 * Return: The length of the extension header, which is always at
4416 * least 6 bytes and at most 18 if address 5 and 6 are present.
4418 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
4421 * DOC: Data path helpers
4423 * In addition to generic utilities, cfg80211 also offers
4424 * functions that help implement the data path for devices
4425 * that do not do the 802.11/802.3 conversion on the device.
4429 * ieee80211_data_to_8023_exthdr - convert an 802.11 data frame to 802.3
4430 * @skb: the 802.11 data frame
4431 * @ehdr: pointer to a &struct ethhdr that will get the header, instead
4432 * of it being pushed into the SKB
4433 * @addr: the device MAC address
4434 * @iftype: the virtual interface type
4435 * @data_offset: offset of payload after the 802.11 header
4436 * Return: 0 on success. Non-zero on error.
4438 int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
4439 const u8 *addr, enum nl80211_iftype iftype,
4443 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
4444 * @skb: the 802.11 data frame
4445 * @addr: the device MAC address
4446 * @iftype: the virtual interface type
4447 * Return: 0 on success. Non-zero on error.
4449 static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
4450 enum nl80211_iftype iftype)
4452 return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype, 0);
4456 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
4458 * Decode an IEEE 802.11 A-MSDU and convert it to a list of 802.3 frames.
4459 * The @list will be empty if the decode fails. The @skb must be fully
4460 * header-less before being passed in here; it is freed in this function.
4462 * @skb: The input A-MSDU frame without any headers.
4463 * @list: The output list of 802.3 frames. It must be allocated and
4464 * initialized by by the caller.
4465 * @addr: The device MAC address.
4466 * @iftype: The device interface type.
4467 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
4468 * @check_da: DA to check in the inner ethernet header, or NULL
4469 * @check_sa: SA to check in the inner ethernet header, or NULL
4471 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
4472 const u8 *addr, enum nl80211_iftype iftype,
4473 const unsigned int extra_headroom,
4474 const u8 *check_da, const u8 *check_sa);
4477 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
4478 * @skb: the data frame
4479 * @qos_map: Interworking QoS mapping or %NULL if not in use
4480 * Return: The 802.1p/1d tag.
4482 unsigned int cfg80211_classify8021d(struct sk_buff *skb,
4483 struct cfg80211_qos_map *qos_map);
4486 * cfg80211_find_ie_match - match information element and byte array in data
4489 * @ies: data consisting of IEs
4490 * @len: length of data
4491 * @match: byte array to match
4492 * @match_len: number of bytes in the match array
4493 * @match_offset: offset in the IE where the byte array should match.
4494 * If match_len is zero, this must also be set to zero.
4495 * Otherwise this must be set to 2 or more, because the first
4496 * byte is the element id, which is already compared to eid, and
4497 * the second byte is the IE length.
4499 * Return: %NULL if the element ID could not be found or if
4500 * the element is invalid (claims to be longer than the given
4501 * data) or if the byte array doesn't match, or a pointer to the first
4502 * byte of the requested element, that is the byte containing the
4505 * Note: There are no checks on the element length other than
4506 * having to fit into the given data and being large enough for the
4507 * byte array to match.
4509 const u8 *cfg80211_find_ie_match(u8 eid, const u8 *ies, int len,
4510 const u8 *match, int match_len,
4514 * cfg80211_find_ie - find information element in data
4517 * @ies: data consisting of IEs
4518 * @len: length of data
4520 * Return: %NULL if the element ID could not be found or if
4521 * the element is invalid (claims to be longer than the given
4522 * data), or a pointer to the first byte of the requested
4523 * element, that is the byte containing the element ID.
4525 * Note: There are no checks on the element length other than
4526 * having to fit into the given data.
4528 static inline const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
4530 return cfg80211_find_ie_match(eid, ies, len, NULL, 0, 0);
4534 * cfg80211_find_ext_ie - find information element with EID Extension in data
4536 * @ext_eid: element ID Extension
4537 * @ies: data consisting of IEs
4538 * @len: length of data
4540 * Return: %NULL if the extended element ID could not be found or if
4541 * the element is invalid (claims to be longer than the given
4542 * data), or a pointer to the first byte of the requested
4543 * element, that is the byte containing the element ID.
4545 * Note: There are no checks on the element length other than
4546 * having to fit into the given data.
4548 static inline const u8 *cfg80211_find_ext_ie(u8 ext_eid, const u8 *ies, int len)
4550 return cfg80211_find_ie_match(WLAN_EID_EXTENSION, ies, len,
4555 * cfg80211_find_vendor_ie - find vendor specific information element in data
4558 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any
4559 * @ies: data consisting of IEs
4560 * @len: length of data
4562 * Return: %NULL if the vendor specific element ID could not be found or if the
4563 * element is invalid (claims to be longer than the given data), or a pointer to
4564 * the first byte of the requested element, that is the byte containing the
4567 * Note: There are no checks on the element length other than having to fit into
4570 const u8 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
4571 const u8 *ies, int len);
4574 * DOC: Regulatory enforcement infrastructure
4580 * regulatory_hint - driver hint to the wireless core a regulatory domain
4581 * @wiphy: the wireless device giving the hint (used only for reporting
4583 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
4584 * should be in. If @rd is set this should be NULL. Note that if you
4585 * set this to NULL you should still set rd->alpha2 to some accepted
4588 * Wireless drivers can use this function to hint to the wireless core
4589 * what it believes should be the current regulatory domain by
4590 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
4591 * domain should be in or by providing a completely build regulatory domain.
4592 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
4593 * for a regulatory domain structure for the respective country.
4595 * The wiphy must have been registered to cfg80211 prior to this call.
4596 * For cfg80211 drivers this means you must first use wiphy_register(),
4597 * for mac80211 drivers you must first use ieee80211_register_hw().
4599 * Drivers should check the return value, its possible you can get
4602 * Return: 0 on success. -ENOMEM.
4604 int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
4607 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
4608 * @wiphy: the wireless device we want to process the regulatory domain on
4609 * @rd: the regulatory domain informatoin to use for this wiphy
4611 * Set the regulatory domain information for self-managed wiphys, only they
4612 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
4615 * Return: 0 on success. -EINVAL, -EPERM
4617 int regulatory_set_wiphy_regd(struct wiphy *wiphy,
4618 struct ieee80211_regdomain *rd);
4621 * regulatory_set_wiphy_regd_sync_rtnl - set regdom for self-managed drivers
4622 * @wiphy: the wireless device we want to process the regulatory domain on
4623 * @rd: the regulatory domain information to use for this wiphy
4625 * This functions requires the RTNL to be held and applies the new regdomain
4626 * synchronously to this wiphy. For more details see
4627 * regulatory_set_wiphy_regd().
4629 * Return: 0 on success. -EINVAL, -EPERM
4631 int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
4632 struct ieee80211_regdomain *rd);
4635 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
4636 * @wiphy: the wireless device we want to process the regulatory domain on
4637 * @regd: the custom regulatory domain to use for this wiphy
4639 * Drivers can sometimes have custom regulatory domains which do not apply
4640 * to a specific country. Drivers can use this to apply such custom regulatory
4641 * domains. This routine must be called prior to wiphy registration. The
4642 * custom regulatory domain will be trusted completely and as such previous
4643 * default channel settings will be disregarded. If no rule is found for a
4644 * channel on the regulatory domain the channel will be disabled.
4645 * Drivers using this for a wiphy should also set the wiphy flag
4646 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
4647 * that called this helper.
4649 void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
4650 const struct ieee80211_regdomain *regd);
4653 * freq_reg_info - get regulatory information for the given frequency
4654 * @wiphy: the wiphy for which we want to process this rule for
4655 * @center_freq: Frequency in KHz for which we want regulatory information for
4657 * Use this function to get the regulatory rule for a specific frequency on
4658 * a given wireless device. If the device has a specific regulatory domain
4659 * it wants to follow we respect that unless a country IE has been received
4660 * and processed already.
4662 * Return: A valid pointer, or, when an error occurs, for example if no rule
4663 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
4664 * check and PTR_ERR() to obtain the numeric return value. The numeric return
4665 * value will be -ERANGE if we determine the given center_freq does not even
4666 * have a regulatory rule for a frequency range in the center_freq's band.
4667 * See freq_in_rule_band() for our current definition of a band -- this is
4668 * purely subjective and right now it's 802.11 specific.
4670 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
4674 * reg_initiator_name - map regulatory request initiator enum to name
4675 * @initiator: the regulatory request initiator
4677 * You can use this to map the regulatory request initiator enum to a
4678 * proper string representation.
4680 const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
4683 * DOC: Internal regulatory db functions
4688 * reg_query_regdb_wmm - Query internal regulatory db for wmm rule
4689 * Regulatory self-managed driver can use it to proactively
4691 * @alpha2: the ISO/IEC 3166 alpha2 wmm rule to be queried.
4692 * @freq: the freqency(in MHz) to be queried.
4693 * @ptr: pointer where the regdb wmm data is to be stored (or %NULL if
4694 * irrelevant). This can be used later for deduplication.
4695 * @rule: pointer to store the wmm rule from the regulatory db.
4697 * Self-managed wireless drivers can use this function to query
4698 * the internal regulatory database to check whether the given
4699 * ISO/IEC 3166 alpha2 country and freq have wmm rule limitations.
4701 * Drivers should check the return value, its possible you can get
4704 * Return: 0 on success. -ENODATA.
4706 int reg_query_regdb_wmm(char *alpha2, int freq, u32 *ptr,
4707 struct ieee80211_wmm_rule *rule);
4710 * callbacks for asynchronous cfg80211 methods, notification
4711 * functions and BSS handling helpers
4715 * cfg80211_scan_done - notify that scan finished
4717 * @request: the corresponding scan request
4718 * @info: information about the completed scan
4720 void cfg80211_scan_done(struct cfg80211_scan_request *request,
4721 struct cfg80211_scan_info *info);
4724 * cfg80211_sched_scan_results - notify that new scan results are available
4726 * @wiphy: the wiphy which got scheduled scan results
4727 * @reqid: identifier for the related scheduled scan request
4729 void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid);
4732 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
4734 * @wiphy: the wiphy on which the scheduled scan stopped
4735 * @reqid: identifier for the related scheduled scan request
4737 * The driver can call this function to inform cfg80211 that the
4738 * scheduled scan had to be stopped, for whatever reason. The driver
4739 * is then called back via the sched_scan_stop operation when done.
4741 void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid);
4744 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped
4746 * @wiphy: the wiphy on which the scheduled scan stopped
4747 * @reqid: identifier for the related scheduled scan request
4749 * The driver can call this function to inform cfg80211 that the
4750 * scheduled scan had to be stopped, for whatever reason. The driver
4751 * is then called back via the sched_scan_stop operation when done.
4752 * This function should be called with rtnl locked.
4754 void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy, u64 reqid);
4757 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame
4758 * @wiphy: the wiphy reporting the BSS
4759 * @data: the BSS metadata
4760 * @mgmt: the management frame (probe response or beacon)
4761 * @len: length of the management frame
4762 * @gfp: context flags
4764 * This informs cfg80211 that BSS information was found and
4765 * the BSS should be updated/added.
4767 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4768 * Or %NULL on error.
4770 struct cfg80211_bss * __must_check
4771 cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
4772 struct cfg80211_inform_bss *data,
4773 struct ieee80211_mgmt *mgmt, size_t len,
4776 static inline struct cfg80211_bss * __must_check
4777 cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
4778 struct ieee80211_channel *rx_channel,
4779 enum nl80211_bss_scan_width scan_width,
4780 struct ieee80211_mgmt *mgmt, size_t len,
4781 s32 signal, gfp_t gfp)
4783 struct cfg80211_inform_bss data = {
4785 .scan_width = scan_width,
4789 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4792 static inline struct cfg80211_bss * __must_check
4793 cfg80211_inform_bss_frame(struct wiphy *wiphy,
4794 struct ieee80211_channel *rx_channel,
4795 struct ieee80211_mgmt *mgmt, size_t len,
4796 s32 signal, gfp_t gfp)
4798 struct cfg80211_inform_bss data = {
4800 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4804 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4808 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
4809 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
4810 * from a beacon or probe response
4811 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
4812 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
4814 enum cfg80211_bss_frame_type {
4815 CFG80211_BSS_FTYPE_UNKNOWN,
4816 CFG80211_BSS_FTYPE_BEACON,
4817 CFG80211_BSS_FTYPE_PRESP,
4821 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS
4823 * @wiphy: the wiphy reporting the BSS
4824 * @data: the BSS metadata
4825 * @ftype: frame type (if known)
4826 * @bssid: the BSSID of the BSS
4827 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
4828 * @capability: the capability field sent by the peer
4829 * @beacon_interval: the beacon interval announced by the peer
4830 * @ie: additional IEs sent by the peer
4831 * @ielen: length of the additional IEs
4832 * @gfp: context flags
4834 * This informs cfg80211 that BSS information was found and
4835 * the BSS should be updated/added.
4837 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4838 * Or %NULL on error.
4840 struct cfg80211_bss * __must_check
4841 cfg80211_inform_bss_data(struct wiphy *wiphy,
4842 struct cfg80211_inform_bss *data,
4843 enum cfg80211_bss_frame_type ftype,
4844 const u8 *bssid, u64 tsf, u16 capability,
4845 u16 beacon_interval, const u8 *ie, size_t ielen,
4848 static inline struct cfg80211_bss * __must_check
4849 cfg80211_inform_bss_width(struct wiphy *wiphy,
4850 struct ieee80211_channel *rx_channel,
4851 enum nl80211_bss_scan_width scan_width,
4852 enum cfg80211_bss_frame_type ftype,
4853 const u8 *bssid, u64 tsf, u16 capability,
4854 u16 beacon_interval, const u8 *ie, size_t ielen,
4855 s32 signal, gfp_t gfp)
4857 struct cfg80211_inform_bss data = {
4859 .scan_width = scan_width,
4863 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4864 capability, beacon_interval, ie, ielen,
4868 static inline struct cfg80211_bss * __must_check
4869 cfg80211_inform_bss(struct wiphy *wiphy,
4870 struct ieee80211_channel *rx_channel,
4871 enum cfg80211_bss_frame_type ftype,
4872 const u8 *bssid, u64 tsf, u16 capability,
4873 u16 beacon_interval, const u8 *ie, size_t ielen,
4874 s32 signal, gfp_t gfp)
4876 struct cfg80211_inform_bss data = {
4878 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4882 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4883 capability, beacon_interval, ie, ielen,
4888 * cfg80211_get_bss - get a BSS reference
4889 * @wiphy: the wiphy this BSS struct belongs to
4890 * @channel: the channel to search on (or %NULL)
4891 * @bssid: the desired BSSID (or %NULL)
4892 * @ssid: the desired SSID (or %NULL)
4893 * @ssid_len: length of the SSID (or 0)
4894 * @bss_type: type of BSS, see &enum ieee80211_bss_type
4895 * @privacy: privacy filter, see &enum ieee80211_privacy
4897 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
4898 struct ieee80211_channel *channel,
4900 const u8 *ssid, size_t ssid_len,
4901 enum ieee80211_bss_type bss_type,
4902 enum ieee80211_privacy privacy);
4903 static inline struct cfg80211_bss *
4904 cfg80211_get_ibss(struct wiphy *wiphy,
4905 struct ieee80211_channel *channel,
4906 const u8 *ssid, size_t ssid_len)
4908 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
4909 IEEE80211_BSS_TYPE_IBSS,
4910 IEEE80211_PRIVACY_ANY);
4914 * cfg80211_ref_bss - reference BSS struct
4915 * @wiphy: the wiphy this BSS struct belongs to
4916 * @bss: the BSS struct to reference
4918 * Increments the refcount of the given BSS struct.
4920 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4923 * cfg80211_put_bss - unref BSS struct
4924 * @wiphy: the wiphy this BSS struct belongs to
4925 * @bss: the BSS struct
4927 * Decrements the refcount of the given BSS struct.
4929 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4932 * cfg80211_unlink_bss - unlink BSS from internal data structures
4934 * @bss: the bss to remove
4936 * This function removes the given BSS from the internal data structures
4937 * thereby making it no longer show up in scan results etc. Use this
4938 * function when you detect a BSS is gone. Normally BSSes will also time
4939 * out, so it is not necessary to use this function at all.
4941 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4943 static inline enum nl80211_bss_scan_width
4944 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef)
4946 switch (chandef->width) {
4947 case NL80211_CHAN_WIDTH_5:
4948 return NL80211_BSS_CHAN_WIDTH_5;
4949 case NL80211_CHAN_WIDTH_10:
4950 return NL80211_BSS_CHAN_WIDTH_10;
4952 return NL80211_BSS_CHAN_WIDTH_20;
4957 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
4958 * @dev: network device
4959 * @buf: authentication frame (header + body)
4960 * @len: length of the frame data
4962 * This function is called whenever an authentication, disassociation or
4963 * deauthentication frame has been received and processed in station mode.
4964 * After being asked to authenticate via cfg80211_ops::auth() the driver must
4965 * call either this function or cfg80211_auth_timeout().
4966 * After being asked to associate via cfg80211_ops::assoc() the driver must
4967 * call either this function or cfg80211_auth_timeout().
4968 * While connected, the driver must calls this for received and processed
4969 * disassociation and deauthentication frames. If the frame couldn't be used
4970 * because it was unprotected, the driver must call the function
4971 * cfg80211_rx_unprot_mlme_mgmt() instead.
4973 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4975 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
4978 * cfg80211_auth_timeout - notification of timed out authentication
4979 * @dev: network device
4980 * @addr: The MAC address of the device with which the authentication timed out
4982 * This function may sleep. The caller must hold the corresponding wdev's
4985 void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
4988 * cfg80211_rx_assoc_resp - notification of processed association response
4989 * @dev: network device
4990 * @bss: the BSS that association was requested with, ownership of the pointer
4991 * moves to cfg80211 in this call
4992 * @buf: authentication frame (header + body)
4993 * @len: length of the frame data
4994 * @uapsd_queues: bitmap of queues configured for uapsd. Same format
4995 * as the AC bitmap in the QoS info field
4997 * After being asked to associate via cfg80211_ops::assoc() the driver must
4998 * call either this function or cfg80211_auth_timeout().
5000 * This function may sleep. The caller must hold the corresponding wdev's mutex.
5002 void cfg80211_rx_assoc_resp(struct net_device *dev,
5003 struct cfg80211_bss *bss,
5004 const u8 *buf, size_t len,
5008 * cfg80211_assoc_timeout - notification of timed out association
5009 * @dev: network device
5010 * @bss: The BSS entry with which association timed out.
5012 * This function may sleep. The caller must hold the corresponding wdev's mutex.
5014 void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss);
5017 * cfg80211_abandon_assoc - notify cfg80211 of abandoned association attempt
5018 * @dev: network device
5019 * @bss: The BSS entry with which association was abandoned.
5021 * Call this whenever - for reasons reported through other API, like deauth RX,
5022 * an association attempt was abandoned.
5023 * This function may sleep. The caller must hold the corresponding wdev's mutex.
5025 void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss);
5028 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
5029 * @dev: network device
5030 * @buf: 802.11 frame (header + body)
5031 * @len: length of the frame data
5033 * This function is called whenever deauthentication has been processed in
5034 * station mode. This includes both received deauthentication frames and
5035 * locally generated ones. This function may sleep. The caller must hold the
5036 * corresponding wdev's mutex.
5038 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
5041 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
5042 * @dev: network device
5043 * @buf: deauthentication frame (header + body)
5044 * @len: length of the frame data
5046 * This function is called whenever a received deauthentication or dissassoc
5047 * frame has been dropped in station mode because of MFP being used but the
5048 * frame was not protected. This function may sleep.
5050 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
5051 const u8 *buf, size_t len);
5054 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
5055 * @dev: network device
5056 * @addr: The source MAC address of the frame
5057 * @key_type: The key type that the received frame used
5058 * @key_id: Key identifier (0..3). Can be -1 if missing.
5059 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
5060 * @gfp: allocation flags
5062 * This function is called whenever the local MAC detects a MIC failure in a
5063 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
5066 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
5067 enum nl80211_key_type key_type, int key_id,
5068 const u8 *tsc, gfp_t gfp);
5071 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
5073 * @dev: network device
5074 * @bssid: the BSSID of the IBSS joined
5075 * @channel: the channel of the IBSS joined
5076 * @gfp: allocation flags
5078 * This function notifies cfg80211 that the device joined an IBSS or
5079 * switched to a different BSSID. Before this function can be called,
5080 * either a beacon has to have been received from the IBSS, or one of
5081 * the cfg80211_inform_bss{,_frame} functions must have been called
5082 * with the locally generated beacon -- this guarantees that there is
5083 * always a scan result for this IBSS. cfg80211 will handle the rest.
5085 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
5086 struct ieee80211_channel *channel, gfp_t gfp);
5089 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
5091 * @dev: network device
5092 * @macaddr: the MAC address of the new candidate
5093 * @ie: information elements advertised by the peer candidate
5094 * @ie_len: lenght of the information elements buffer
5095 * @gfp: allocation flags
5097 * This function notifies cfg80211 that the mesh peer candidate has been
5098 * detected, most likely via a beacon or, less likely, via a probe response.
5099 * cfg80211 then sends a notification to userspace.
5101 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
5102 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
5105 * DOC: RFkill integration
5107 * RFkill integration in cfg80211 is almost invisible to drivers,
5108 * as cfg80211 automatically registers an rfkill instance for each
5109 * wireless device it knows about. Soft kill is also translated
5110 * into disconnecting and turning all interfaces off, drivers are
5111 * expected to turn off the device when all interfaces are down.
5113 * However, devices may have a hard RFkill line, in which case they
5114 * also need to interact with the rfkill subsystem, via cfg80211.
5115 * They can do this with a few helper functions documented here.
5119 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
5121 * @blocked: block status
5123 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
5126 * wiphy_rfkill_start_polling - start polling rfkill
5129 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
5132 * wiphy_rfkill_stop_polling - stop polling rfkill
5135 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
5138 * DOC: Vendor commands
5140 * Occasionally, there are special protocol or firmware features that
5141 * can't be implemented very openly. For this and similar cases, the
5142 * vendor command functionality allows implementing the features with
5143 * (typically closed-source) userspace and firmware, using nl80211 as
5144 * the configuration mechanism.
5146 * A driver supporting vendor commands must register them as an array
5147 * in struct wiphy, with handlers for each one, each command has an
5148 * OUI and sub command ID to identify it.
5150 * Note that this feature should not be (ab)used to implement protocol
5151 * features that could openly be shared across drivers. In particular,
5152 * it must never be required to use vendor commands to implement any
5153 * "normal" functionality that higher-level userspace like connection
5154 * managers etc. need.
5157 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
5158 enum nl80211_commands cmd,
5159 enum nl80211_attrs attr,
5162 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
5163 struct wireless_dev *wdev,
5164 enum nl80211_commands cmd,
5165 enum nl80211_attrs attr,
5166 int vendor_event_idx,
5167 int approxlen, gfp_t gfp);
5169 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp);
5172 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
5174 * @approxlen: an upper bound of the length of the data that will
5175 * be put into the skb
5177 * This function allocates and pre-fills an skb for a reply to
5178 * a vendor command. Since it is intended for a reply, calling
5179 * it outside of a vendor command's doit() operation is invalid.
5181 * The returned skb is pre-filled with some identifying data in
5182 * a way that any data that is put into the skb (with skb_put(),
5183 * nla_put() or similar) will end up being within the
5184 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
5185 * with the skb is adding data for the corresponding userspace tool
5186 * which can then read that data out of the vendor data attribute.
5187 * You must not modify the skb in any other way.
5189 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
5190 * its error code as the result of the doit() operation.
5192 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5194 static inline struct sk_buff *
5195 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
5197 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR,
5198 NL80211_ATTR_VENDOR_DATA, approxlen);
5202 * cfg80211_vendor_cmd_reply - send the reply skb
5203 * @skb: The skb, must have been allocated with
5204 * cfg80211_vendor_cmd_alloc_reply_skb()
5206 * Since calling this function will usually be the last thing
5207 * before returning from the vendor command doit() you should
5208 * return the error code. Note that this function consumes the
5209 * skb regardless of the return value.
5211 * Return: An error code or 0 on success.
5213 int cfg80211_vendor_cmd_reply(struct sk_buff *skb);
5216 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
5218 * @wdev: the wireless device
5219 * @event_idx: index of the vendor event in the wiphy's vendor_events
5220 * @approxlen: an upper bound of the length of the data that will
5221 * be put into the skb
5222 * @gfp: allocation flags
5224 * This function allocates and pre-fills an skb for an event on the
5225 * vendor-specific multicast group.
5227 * If wdev != NULL, both the ifindex and identifier of the specified
5228 * wireless device are added to the event message before the vendor data
5231 * When done filling the skb, call cfg80211_vendor_event() with the
5232 * skb to send the event.
5234 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5236 static inline struct sk_buff *
5237 cfg80211_vendor_event_alloc(struct wiphy *wiphy, struct wireless_dev *wdev,
5238 int approxlen, int event_idx, gfp_t gfp)
5240 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR,
5241 NL80211_ATTR_VENDOR_DATA,
5242 event_idx, approxlen, gfp);
5246 * cfg80211_vendor_event - send the event
5247 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
5248 * @gfp: allocation flags
5250 * This function sends the given @skb, which must have been allocated
5251 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
5253 static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp)
5255 __cfg80211_send_event_skb(skb, gfp);
5258 #ifdef CONFIG_NL80211_TESTMODE
5262 * Test mode is a set of utility functions to allow drivers to
5263 * interact with driver-specific tools to aid, for instance,
5264 * factory programming.
5266 * This chapter describes how drivers interact with it, for more
5267 * information see the nl80211 book's chapter on it.
5271 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
5273 * @approxlen: an upper bound of the length of the data that will
5274 * be put into the skb
5276 * This function allocates and pre-fills an skb for a reply to
5277 * the testmode command. Since it is intended for a reply, calling
5278 * it outside of the @testmode_cmd operation is invalid.
5280 * The returned skb is pre-filled with the wiphy index and set up in
5281 * a way that any data that is put into the skb (with skb_put(),
5282 * nla_put() or similar) will end up being within the
5283 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
5284 * with the skb is adding data for the corresponding userspace tool
5285 * which can then read that data out of the testdata attribute. You
5286 * must not modify the skb in any other way.
5288 * When done, call cfg80211_testmode_reply() with the skb and return
5289 * its error code as the result of the @testmode_cmd operation.
5291 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5293 static inline struct sk_buff *
5294 cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
5296 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE,
5297 NL80211_ATTR_TESTDATA, approxlen);
5301 * cfg80211_testmode_reply - send the reply skb
5302 * @skb: The skb, must have been allocated with
5303 * cfg80211_testmode_alloc_reply_skb()
5305 * Since calling this function will usually be the last thing
5306 * before returning from the @testmode_cmd you should return
5307 * the error code. Note that this function consumes the skb
5308 * regardless of the return value.
5310 * Return: An error code or 0 on success.
5312 static inline int cfg80211_testmode_reply(struct sk_buff *skb)
5314 return cfg80211_vendor_cmd_reply(skb);
5318 * cfg80211_testmode_alloc_event_skb - allocate testmode event
5320 * @approxlen: an upper bound of the length of the data that will
5321 * be put into the skb
5322 * @gfp: allocation flags
5324 * This function allocates and pre-fills an skb for an event on the
5325 * testmode multicast group.
5327 * The returned skb is set up in the same way as with
5328 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
5329 * there, you should simply add data to it that will then end up in the
5330 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
5333 * When done filling the skb, call cfg80211_testmode_event() with the
5334 * skb to send the event.
5336 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
5338 static inline struct sk_buff *
5339 cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp)
5341 return __cfg80211_alloc_event_skb(wiphy, NULL, NL80211_CMD_TESTMODE,
5342 NL80211_ATTR_TESTDATA, -1,
5347 * cfg80211_testmode_event - send the event
5348 * @skb: The skb, must have been allocated with
5349 * cfg80211_testmode_alloc_event_skb()
5350 * @gfp: allocation flags
5352 * This function sends the given @skb, which must have been allocated
5353 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
5356 static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5358 __cfg80211_send_event_skb(skb, gfp);
5361 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
5362 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
5364 #define CFG80211_TESTMODE_CMD(cmd)
5365 #define CFG80211_TESTMODE_DUMP(cmd)
5369 * struct cfg80211_connect_resp_params - Connection response params
5370 * @status: Status code, %WLAN_STATUS_SUCCESS for successful connection, use
5371 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5372 * the real status code for failures. If this call is used to report a
5373 * failure due to a timeout (e.g., not receiving an Authentication frame
5374 * from the AP) instead of an explicit rejection by the AP, -1 is used to
5375 * indicate that this is a failure, but without a status code.
5376 * @timeout_reason is used to report the reason for the timeout in that
5378 * @bssid: The BSSID of the AP (may be %NULL)
5379 * @bss: Entry of bss to which STA got connected to, can be obtained through
5380 * cfg80211_get_bss() (may be %NULL). Only one parameter among @bssid and
5381 * @bss needs to be specified.
5382 * @req_ie: Association request IEs (may be %NULL)
5383 * @req_ie_len: Association request IEs length
5384 * @resp_ie: Association response IEs (may be %NULL)
5385 * @resp_ie_len: Association response IEs length
5386 * @fils_kek: KEK derived from a successful FILS connection (may be %NULL)
5387 * @fils_kek_len: Length of @fils_kek in octets
5388 * @update_erp_next_seq_num: Boolean value to specify whether the value in
5389 * @fils_erp_next_seq_num is valid.
5390 * @fils_erp_next_seq_num: The next sequence number to use in ERP message in
5391 * FILS Authentication. This value should be specified irrespective of the
5392 * status for a FILS connection.
5393 * @pmk: A new PMK if derived from a successful FILS connection (may be %NULL).
5394 * @pmk_len: Length of @pmk in octets
5395 * @pmkid: A new PMKID if derived from a successful FILS connection or the PMKID
5396 * used for this FILS connection (may be %NULL).
5397 * @timeout_reason: Reason for connection timeout. This is used when the
5398 * connection fails due to a timeout instead of an explicit rejection from
5399 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
5400 * not known. This value is used only if @status < 0 to indicate that the
5401 * failure is due to a timeout and not due to explicit rejection by the AP.
5402 * This value is ignored in other cases (@status >= 0).
5404 struct cfg80211_connect_resp_params {
5407 struct cfg80211_bss *bss;
5413 size_t fils_kek_len;
5414 bool update_erp_next_seq_num;
5415 u16 fils_erp_next_seq_num;
5419 enum nl80211_timeout_reason timeout_reason;
5423 * cfg80211_connect_done - notify cfg80211 of connection result
5425 * @dev: network device
5426 * @params: connection response parameters
5427 * @gfp: allocation flags
5429 * It should be called by the underlying driver once execution of the connection
5430 * request from connect() has been completed. This is similar to
5431 * cfg80211_connect_bss(), but takes a structure pointer for connection response
5432 * parameters. Only one of the functions among cfg80211_connect_bss(),
5433 * cfg80211_connect_result(), cfg80211_connect_timeout(),
5434 * and cfg80211_connect_done() should be called.
5436 void cfg80211_connect_done(struct net_device *dev,
5437 struct cfg80211_connect_resp_params *params,
5441 * cfg80211_connect_bss - notify cfg80211 of connection result
5443 * @dev: network device
5444 * @bssid: the BSSID of the AP
5445 * @bss: entry of bss to which STA got connected to, can be obtained
5446 * through cfg80211_get_bss (may be %NULL)
5447 * @req_ie: association request IEs (maybe be %NULL)
5448 * @req_ie_len: association request IEs length
5449 * @resp_ie: association response IEs (may be %NULL)
5450 * @resp_ie_len: assoc response IEs length
5451 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
5452 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5453 * the real status code for failures. If this call is used to report a
5454 * failure due to a timeout (e.g., not receiving an Authentication frame
5455 * from the AP) instead of an explicit rejection by the AP, -1 is used to
5456 * indicate that this is a failure, but without a status code.
5457 * @timeout_reason is used to report the reason for the timeout in that
5459 * @gfp: allocation flags
5460 * @timeout_reason: reason for connection timeout. This is used when the
5461 * connection fails due to a timeout instead of an explicit rejection from
5462 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is
5463 * not known. This value is used only if @status < 0 to indicate that the
5464 * failure is due to a timeout and not due to explicit rejection by the AP.
5465 * This value is ignored in other cases (@status >= 0).
5467 * It should be called by the underlying driver once execution of the connection
5468 * request from connect() has been completed. This is similar to
5469 * cfg80211_connect_result(), but with the option of identifying the exact bss
5470 * entry for the connection. Only one of the functions among
5471 * cfg80211_connect_bss(), cfg80211_connect_result(),
5472 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5475 cfg80211_connect_bss(struct net_device *dev, const u8 *bssid,
5476 struct cfg80211_bss *bss, const u8 *req_ie,
5477 size_t req_ie_len, const u8 *resp_ie,
5478 size_t resp_ie_len, int status, gfp_t gfp,
5479 enum nl80211_timeout_reason timeout_reason)
5481 struct cfg80211_connect_resp_params params;
5483 memset(¶ms, 0, sizeof(params));
5484 params.status = status;
5485 params.bssid = bssid;
5487 params.req_ie = req_ie;
5488 params.req_ie_len = req_ie_len;
5489 params.resp_ie = resp_ie;
5490 params.resp_ie_len = resp_ie_len;
5491 params.timeout_reason = timeout_reason;
5493 cfg80211_connect_done(dev, ¶ms, gfp);
5497 * cfg80211_connect_result - notify cfg80211 of connection result
5499 * @dev: network device
5500 * @bssid: the BSSID of the AP
5501 * @req_ie: association request IEs (maybe be %NULL)
5502 * @req_ie_len: association request IEs length
5503 * @resp_ie: association response IEs (may be %NULL)
5504 * @resp_ie_len: assoc response IEs length
5505 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use
5506 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
5507 * the real status code for failures.
5508 * @gfp: allocation flags
5510 * It should be called by the underlying driver once execution of the connection
5511 * request from connect() has been completed. This is similar to
5512 * cfg80211_connect_bss() which allows the exact bss entry to be specified. Only
5513 * one of the functions among cfg80211_connect_bss(), cfg80211_connect_result(),
5514 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5517 cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
5518 const u8 *req_ie, size_t req_ie_len,
5519 const u8 *resp_ie, size_t resp_ie_len,
5520 u16 status, gfp_t gfp)
5522 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, resp_ie,
5523 resp_ie_len, status, gfp,
5524 NL80211_TIMEOUT_UNSPECIFIED);
5528 * cfg80211_connect_timeout - notify cfg80211 of connection timeout
5530 * @dev: network device
5531 * @bssid: the BSSID of the AP
5532 * @req_ie: association request IEs (maybe be %NULL)
5533 * @req_ie_len: association request IEs length
5534 * @gfp: allocation flags
5535 * @timeout_reason: reason for connection timeout.
5537 * It should be called by the underlying driver whenever connect() has failed
5538 * in a sequence where no explicit authentication/association rejection was
5539 * received from the AP. This could happen, e.g., due to not being able to send
5540 * out the Authentication or Association Request frame or timing out while
5541 * waiting for the response. Only one of the functions among
5542 * cfg80211_connect_bss(), cfg80211_connect_result(),
5543 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called.
5546 cfg80211_connect_timeout(struct net_device *dev, const u8 *bssid,
5547 const u8 *req_ie, size_t req_ie_len, gfp_t gfp,
5548 enum nl80211_timeout_reason timeout_reason)
5550 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, NULL, 0, -1,
5551 gfp, timeout_reason);
5555 * struct cfg80211_roam_info - driver initiated roaming information
5557 * @channel: the channel of the new AP
5558 * @bss: entry of bss to which STA got roamed (may be %NULL if %bssid is set)
5559 * @bssid: the BSSID of the new AP (may be %NULL if %bss is set)
5560 * @req_ie: association request IEs (maybe be %NULL)
5561 * @req_ie_len: association request IEs length
5562 * @resp_ie: association response IEs (may be %NULL)
5563 * @resp_ie_len: assoc response IEs length
5565 struct cfg80211_roam_info {
5566 struct ieee80211_channel *channel;
5567 struct cfg80211_bss *bss;
5576 * cfg80211_roamed - notify cfg80211 of roaming
5578 * @dev: network device
5579 * @info: information about the new BSS. struct &cfg80211_roam_info.
5580 * @gfp: allocation flags
5582 * This function may be called with the driver passing either the BSSID of the
5583 * new AP or passing the bss entry to avoid a race in timeout of the bss entry.
5584 * It should be called by the underlying driver whenever it roamed from one AP
5585 * to another while connected. Drivers which have roaming implemented in
5586 * firmware should pass the bss entry to avoid a race in bss entry timeout where
5587 * the bss entry of the new AP is seen in the driver, but gets timed out by the
5588 * time it is accessed in __cfg80211_roamed() due to delay in scheduling
5589 * rdev->event_work. In case of any failures, the reference is released
5590 * either in cfg80211_roamed() or in __cfg80211_romed(), Otherwise, it will be
5591 * released while diconneting from the current bss.
5593 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
5597 * cfg80211_port_authorized - notify cfg80211 of successful security association
5599 * @dev: network device
5600 * @bssid: the BSSID of the AP
5601 * @gfp: allocation flags
5603 * This function should be called by a driver that supports 4 way handshake
5604 * offload after a security association was successfully established (i.e.,
5605 * the 4 way handshake was completed successfully). The call to this function
5606 * should be preceded with a call to cfg80211_connect_result(),
5607 * cfg80211_connect_done(), cfg80211_connect_bss() or cfg80211_roamed() to
5608 * indicate the 802.11 association.
5610 void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
5614 * cfg80211_disconnected - notify cfg80211 that connection was dropped
5616 * @dev: network device
5617 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
5618 * @ie_len: length of IEs
5619 * @reason: reason code for the disconnection, set it to 0 if unknown
5620 * @locally_generated: disconnection was requested locally
5621 * @gfp: allocation flags
5623 * After it calls this function, the driver should enter an idle state
5624 * and not try to connect to any AP any more.
5626 void cfg80211_disconnected(struct net_device *dev, u16 reason,
5627 const u8 *ie, size_t ie_len,
5628 bool locally_generated, gfp_t gfp);
5631 * cfg80211_ready_on_channel - notification of remain_on_channel start
5632 * @wdev: wireless device
5633 * @cookie: the request cookie
5634 * @chan: The current channel (from remain_on_channel request)
5635 * @duration: Duration in milliseconds that the driver intents to remain on the
5637 * @gfp: allocation flags
5639 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
5640 struct ieee80211_channel *chan,
5641 unsigned int duration, gfp_t gfp);
5644 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
5645 * @wdev: wireless device
5646 * @cookie: the request cookie
5647 * @chan: The current channel (from remain_on_channel request)
5648 * @gfp: allocation flags
5650 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
5651 struct ieee80211_channel *chan,
5656 * cfg80211_new_sta - notify userspace about station
5659 * @mac_addr: the station's address
5660 * @sinfo: the station information
5661 * @gfp: allocation flags
5663 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
5664 struct station_info *sinfo, gfp_t gfp);
5667 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
5669 * @mac_addr: the station's address
5670 * @sinfo: the station information/statistics
5671 * @gfp: allocation flags
5673 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
5674 struct station_info *sinfo, gfp_t gfp);
5677 * cfg80211_del_sta - notify userspace about deletion of a station
5680 * @mac_addr: the station's address
5681 * @gfp: allocation flags
5683 static inline void cfg80211_del_sta(struct net_device *dev,
5684 const u8 *mac_addr, gfp_t gfp)
5686 cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp);
5690 * cfg80211_conn_failed - connection request failed notification
5693 * @mac_addr: the station's address
5694 * @reason: the reason for connection failure
5695 * @gfp: allocation flags
5697 * Whenever a station tries to connect to an AP and if the station
5698 * could not connect to the AP as the AP has rejected the connection
5699 * for some reasons, this function is called.
5701 * The reason for connection failure can be any of the value from
5702 * nl80211_connect_failed_reason enum
5704 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
5705 enum nl80211_connect_failed_reason reason,
5709 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
5710 * @wdev: wireless device receiving the frame
5711 * @freq: Frequency on which the frame was received in MHz
5712 * @sig_dbm: signal strength in dBm, or 0 if unknown
5713 * @buf: Management frame (header + body)
5714 * @len: length of the frame data
5715 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
5717 * This function is called whenever an Action frame is received for a station
5718 * mode interface, but is not processed in kernel.
5720 * Return: %true if a user space application has registered for this frame.
5721 * For action frames, that makes it responsible for rejecting unrecognized
5722 * action frames; %false otherwise, in which case for action frames the
5723 * driver is responsible for rejecting the frame.
5725 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
5726 const u8 *buf, size_t len, u32 flags);
5729 * cfg80211_mgmt_tx_status - notification of TX status for management frame
5730 * @wdev: wireless device receiving the frame
5731 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
5732 * @buf: Management frame (header + body)
5733 * @len: length of the frame data
5734 * @ack: Whether frame was acknowledged
5735 * @gfp: context flags
5737 * This function is called whenever a management frame was requested to be
5738 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
5739 * transmission attempt.
5741 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
5742 const u8 *buf, size_t len, bool ack, gfp_t gfp);
5746 * cfg80211_rx_control_port - notification about a received control port frame
5747 * @dev: The device the frame matched to
5748 * @buf: control port frame
5749 * @len: length of the frame data
5750 * @addr: The peer from which the frame was received
5751 * @proto: frame protocol, typically PAE or Pre-authentication
5752 * @unencrypted: Whether the frame was received unencrypted
5754 * This function is used to inform userspace about a received control port
5755 * frame. It should only be used if userspace indicated it wants to receive
5756 * control port frames over nl80211.
5758 * The frame is the data portion of the 802.3 or 802.11 data frame with all
5759 * network layer headers removed (e.g. the raw EAPoL frame).
5761 * Return: %true if the frame was passed to userspace
5763 bool cfg80211_rx_control_port(struct net_device *dev,
5764 const u8 *buf, size_t len,
5765 const u8 *addr, u16 proto, bool unencrypted);
5768 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
5769 * @dev: network device
5770 * @rssi_event: the triggered RSSI event
5771 * @rssi_level: new RSSI level value or 0 if not available
5772 * @gfp: context flags
5774 * This function is called when a configured connection quality monitoring
5775 * rssi threshold reached event occurs.
5777 void cfg80211_cqm_rssi_notify(struct net_device *dev,
5778 enum nl80211_cqm_rssi_threshold_event rssi_event,
5779 s32 rssi_level, gfp_t gfp);
5782 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
5783 * @dev: network device
5784 * @peer: peer's MAC address
5785 * @num_packets: how many packets were lost -- should be a fixed threshold
5786 * but probably no less than maybe 50, or maybe a throughput dependent
5787 * threshold (to account for temporary interference)
5788 * @gfp: context flags
5790 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
5791 const u8 *peer, u32 num_packets, gfp_t gfp);
5794 * cfg80211_cqm_txe_notify - TX error rate event
5795 * @dev: network device
5796 * @peer: peer's MAC address
5797 * @num_packets: how many packets were lost
5798 * @rate: % of packets which failed transmission
5799 * @intvl: interval (in s) over which the TX failure threshold was breached.
5800 * @gfp: context flags
5802 * Notify userspace when configured % TX failures over number of packets in a
5803 * given interval is exceeded.
5805 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
5806 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
5809 * cfg80211_cqm_beacon_loss_notify - beacon loss event
5810 * @dev: network device
5811 * @gfp: context flags
5813 * Notify userspace about beacon loss from the connected AP.
5815 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp);
5818 * cfg80211_radar_event - radar detection event
5820 * @chandef: chandef for the current channel
5821 * @gfp: context flags
5823 * This function is called when a radar is detected on the current chanenl.
5825 void cfg80211_radar_event(struct wiphy *wiphy,
5826 struct cfg80211_chan_def *chandef, gfp_t gfp);
5829 * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event
5830 * @dev: network device
5831 * @mac: MAC address of a station which opmode got modified
5832 * @sta_opmode: station's current opmode value
5833 * @gfp: context flags
5835 * Driver should call this function when station's opmode modified via action
5838 void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
5839 struct sta_opmode_info *sta_opmode,
5843 * cfg80211_cac_event - Channel availability check (CAC) event
5844 * @netdev: network device
5845 * @chandef: chandef for the current channel
5846 * @event: type of event
5847 * @gfp: context flags
5849 * This function is called when a Channel availability check (CAC) is finished
5850 * or aborted. This must be called to notify the completion of a CAC process,
5851 * also by full-MAC drivers.
5853 void cfg80211_cac_event(struct net_device *netdev,
5854 const struct cfg80211_chan_def *chandef,
5855 enum nl80211_radar_event event, gfp_t gfp);
5859 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
5860 * @dev: network device
5861 * @bssid: BSSID of AP (to avoid races)
5862 * @replay_ctr: new replay counter
5863 * @gfp: allocation flags
5865 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
5866 const u8 *replay_ctr, gfp_t gfp);
5869 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
5870 * @dev: network device
5871 * @index: candidate index (the smaller the index, the higher the priority)
5872 * @bssid: BSSID of AP
5873 * @preauth: Whether AP advertises support for RSN pre-authentication
5874 * @gfp: allocation flags
5876 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
5877 const u8 *bssid, bool preauth, gfp_t gfp);
5880 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
5881 * @dev: The device the frame matched to
5882 * @addr: the transmitter address
5883 * @gfp: context flags
5885 * This function is used in AP mode (only!) to inform userspace that
5886 * a spurious class 3 frame was received, to be able to deauth the
5888 * Return: %true if the frame was passed to userspace (or this failed
5889 * for a reason other than not having a subscription.)
5891 bool cfg80211_rx_spurious_frame(struct net_device *dev,
5892 const u8 *addr, gfp_t gfp);
5895 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
5896 * @dev: The device the frame matched to
5897 * @addr: the transmitter address
5898 * @gfp: context flags
5900 * This function is used in AP mode (only!) to inform userspace that
5901 * an associated station sent a 4addr frame but that wasn't expected.
5902 * It is allowed and desirable to send this event only once for each
5903 * station to avoid event flooding.
5904 * Return: %true if the frame was passed to userspace (or this failed
5905 * for a reason other than not having a subscription.)
5907 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
5908 const u8 *addr, gfp_t gfp);
5911 * cfg80211_probe_status - notify userspace about probe status
5912 * @dev: the device the probe was sent on
5913 * @addr: the address of the peer
5914 * @cookie: the cookie filled in @probe_client previously
5915 * @acked: indicates whether probe was acked or not
5916 * @ack_signal: signal strength (in dBm) of the ACK frame.
5917 * @is_valid_ack_signal: indicates the ack_signal is valid or not.
5918 * @gfp: allocation flags
5920 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
5921 u64 cookie, bool acked, s32 ack_signal,
5922 bool is_valid_ack_signal, gfp_t gfp);
5925 * cfg80211_report_obss_beacon - report beacon from other APs
5926 * @wiphy: The wiphy that received the beacon
5928 * @len: length of the frame
5929 * @freq: frequency the frame was received on
5930 * @sig_dbm: signal strength in dBm, or 0 if unknown
5932 * Use this function to report to userspace when a beacon was
5933 * received. It is not useful to call this when there is no
5934 * netdev that is in AP/GO mode.
5936 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
5937 const u8 *frame, size_t len,
5938 int freq, int sig_dbm);
5941 * cfg80211_reg_can_beacon - check if beaconing is allowed
5943 * @chandef: the channel definition
5944 * @iftype: interface type
5946 * Return: %true if there is no secondary channel or the secondary channel(s)
5947 * can be used for beaconing (i.e. is not a radar channel etc.)
5949 bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
5950 struct cfg80211_chan_def *chandef,
5951 enum nl80211_iftype iftype);
5954 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
5956 * @chandef: the channel definition
5957 * @iftype: interface type
5959 * Return: %true if there is no secondary channel or the secondary channel(s)
5960 * can be used for beaconing (i.e. is not a radar channel etc.). This version
5961 * also checks if IR-relaxation conditions apply, to allow beaconing under
5962 * more permissive conditions.
5964 * Requires the RTNL to be held.
5966 bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
5967 struct cfg80211_chan_def *chandef,
5968 enum nl80211_iftype iftype);
5971 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
5972 * @dev: the device which switched channels
5973 * @chandef: the new channel definition
5975 * Caller must acquire wdev_lock, therefore must only be called from sleepable
5978 void cfg80211_ch_switch_notify(struct net_device *dev,
5979 struct cfg80211_chan_def *chandef);
5982 * cfg80211_ch_switch_started_notify - notify channel switch start
5983 * @dev: the device on which the channel switch started
5984 * @chandef: the future channel definition
5985 * @count: the number of TBTTs until the channel switch happens
5987 * Inform the userspace about the channel switch that has just
5988 * started, so that it can take appropriate actions (eg. starting
5989 * channel switch on other vifs), if necessary.
5991 void cfg80211_ch_switch_started_notify(struct net_device *dev,
5992 struct cfg80211_chan_def *chandef,
5996 * ieee80211_operating_class_to_band - convert operating class to band
5998 * @operating_class: the operating class to convert
5999 * @band: band pointer to fill
6001 * Returns %true if the conversion was successful, %false otherwise.
6003 bool ieee80211_operating_class_to_band(u8 operating_class,
6004 enum nl80211_band *band);
6007 * ieee80211_chandef_to_operating_class - convert chandef to operation class
6009 * @chandef: the chandef to convert
6010 * @op_class: a pointer to the resulting operating class
6012 * Returns %true if the conversion was successful, %false otherwise.
6014 bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
6018 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
6019 * @dev: the device on which the operation is requested
6020 * @peer: the MAC address of the peer device
6021 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
6022 * NL80211_TDLS_TEARDOWN)
6023 * @reason_code: the reason code for teardown request
6024 * @gfp: allocation flags
6026 * This function is used to request userspace to perform TDLS operation that
6027 * requires knowledge of keys, i.e., link setup or teardown when the AP
6028 * connection uses encryption. This is optional mechanism for the driver to use
6029 * if it can automatically determine when a TDLS link could be useful (e.g.,
6030 * based on traffic and signal strength for a peer).
6032 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
6033 enum nl80211_tdls_operation oper,
6034 u16 reason_code, gfp_t gfp);
6037 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
6038 * @rate: given rate_info to calculate bitrate from
6040 * return 0 if MCS index >= 32
6042 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
6045 * cfg80211_unregister_wdev - remove the given wdev
6046 * @wdev: struct wireless_dev to remove
6048 * Call this function only for wdevs that have no netdev assigned,
6049 * e.g. P2P Devices. It removes the device from the list so that
6050 * it can no longer be used. It is necessary to call this function
6051 * even when cfg80211 requests the removal of the interface by
6052 * calling the del_virtual_intf() callback. The function must also
6053 * be called when the driver wishes to unregister the wdev, e.g.
6054 * when the device is unbound from the driver.
6056 * Requires the RTNL to be held.
6058 void cfg80211_unregister_wdev(struct wireless_dev *wdev);
6061 * struct cfg80211_ft_event - FT Information Elements
6063 * @ies_len: length of the FT IE in bytes
6064 * @target_ap: target AP's MAC address
6066 * @ric_ies_len: length of the RIC IE in bytes
6068 struct cfg80211_ft_event_params {
6071 const u8 *target_ap;
6077 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
6078 * @netdev: network device
6079 * @ft_event: IE information
6081 void cfg80211_ft_event(struct net_device *netdev,
6082 struct cfg80211_ft_event_params *ft_event);
6085 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
6086 * @ies: the input IE buffer
6087 * @len: the input length
6088 * @attr: the attribute ID to find
6089 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
6090 * if the function is only called to get the needed buffer size
6091 * @bufsize: size of the output buffer
6093 * The function finds a given P2P attribute in the (vendor) IEs and
6094 * copies its contents to the given buffer.
6096 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
6097 * malformed or the attribute can't be found (respectively), or the
6098 * length of the found attribute (which can be zero).
6100 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
6101 enum ieee80211_p2p_attr_id attr,
6102 u8 *buf, unsigned int bufsize);
6105 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC)
6106 * @ies: the IE buffer
6107 * @ielen: the length of the IE buffer
6108 * @ids: an array with element IDs that are allowed before
6109 * the split. A WLAN_EID_EXTENSION value means that the next
6110 * EID in the list is a sub-element of the EXTENSION IE.
6111 * @n_ids: the size of the element ID array
6112 * @after_ric: array IE types that come after the RIC element
6113 * @n_after_ric: size of the @after_ric array
6114 * @offset: offset where to start splitting in the buffer
6116 * This function splits an IE buffer by updating the @offset
6117 * variable to point to the location where the buffer should be
6120 * It assumes that the given IE buffer is well-formed, this
6121 * has to be guaranteed by the caller!
6123 * It also assumes that the IEs in the buffer are ordered
6124 * correctly, if not the result of using this function will not
6125 * be ordered correctly either, i.e. it does no reordering.
6127 * The function returns the offset where the next part of the
6128 * buffer starts, which may be @ielen if the entire (remainder)
6129 * of the buffer should be used.
6131 size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen,
6132 const u8 *ids, int n_ids,
6133 const u8 *after_ric, int n_after_ric,
6137 * ieee80211_ie_split - split an IE buffer according to ordering
6138 * @ies: the IE buffer
6139 * @ielen: the length of the IE buffer
6140 * @ids: an array with element IDs that are allowed before
6141 * the split. A WLAN_EID_EXTENSION value means that the next
6142 * EID in the list is a sub-element of the EXTENSION IE.
6143 * @n_ids: the size of the element ID array
6144 * @offset: offset where to start splitting in the buffer
6146 * This function splits an IE buffer by updating the @offset
6147 * variable to point to the location where the buffer should be
6150 * It assumes that the given IE buffer is well-formed, this
6151 * has to be guaranteed by the caller!
6153 * It also assumes that the IEs in the buffer are ordered
6154 * correctly, if not the result of using this function will not
6155 * be ordered correctly either, i.e. it does no reordering.
6157 * The function returns the offset where the next part of the
6158 * buffer starts, which may be @ielen if the entire (remainder)
6159 * of the buffer should be used.
6161 static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
6162 const u8 *ids, int n_ids, size_t offset)
6164 return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset);
6168 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
6169 * @wdev: the wireless device reporting the wakeup
6170 * @wakeup: the wakeup report
6171 * @gfp: allocation flags
6173 * This function reports that the given device woke up. If it
6174 * caused the wakeup, report the reason(s), otherwise you may
6175 * pass %NULL as the @wakeup parameter to advertise that something
6176 * else caused the wakeup.
6178 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
6179 struct cfg80211_wowlan_wakeup *wakeup,
6183 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
6185 * @wdev: the wireless device for which critical protocol is stopped.
6186 * @gfp: allocation flags
6188 * This function can be called by the driver to indicate it has reverted
6189 * operation back to normal. One reason could be that the duration given
6190 * by .crit_proto_start() has expired.
6192 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp);
6195 * ieee80211_get_num_supported_channels - get number of channels device has
6198 * Return: the number of channels supported by the device.
6200 unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy);
6203 * cfg80211_check_combinations - check interface combinations
6206 * @params: the interface combinations parameter
6208 * This function can be called by the driver to check whether a
6209 * combination of interfaces and their types are allowed according to
6210 * the interface combinations.
6212 int cfg80211_check_combinations(struct wiphy *wiphy,
6213 struct iface_combination_params *params);
6216 * cfg80211_iter_combinations - iterate over matching combinations
6219 * @params: the interface combinations parameter
6220 * @iter: function to call for each matching combination
6221 * @data: pointer to pass to iter function
6223 * This function can be called by the driver to check what possible
6224 * combinations it fits in at a given moment, e.g. for channel switching
6227 int cfg80211_iter_combinations(struct wiphy *wiphy,
6228 struct iface_combination_params *params,
6229 void (*iter)(const struct ieee80211_iface_combination *c,
6234 * cfg80211_stop_iface - trigger interface disconnection
6237 * @wdev: wireless device
6238 * @gfp: context flags
6240 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
6243 * Note: This doesn't need any locks and is asynchronous.
6245 void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
6249 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
6250 * @wiphy: the wiphy to shut down
6252 * This function shuts down all interfaces belonging to this wiphy by
6253 * calling dev_close() (and treating non-netdev interfaces as needed).
6254 * It shouldn't really be used unless there are some fatal device errors
6255 * that really can't be recovered in any other way.
6257 * Callers must hold the RTNL and be able to deal with callbacks into
6258 * the driver while the function is running.
6260 void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy);
6263 * wiphy_ext_feature_set - set the extended feature flag
6265 * @wiphy: the wiphy to modify.
6266 * @ftidx: extended feature bit index.
6268 * The extended features are flagged in multiple bytes (see
6269 * &struct wiphy.@ext_features)
6271 static inline void wiphy_ext_feature_set(struct wiphy *wiphy,
6272 enum nl80211_ext_feature_index ftidx)
6276 ft_byte = &wiphy->ext_features[ftidx / 8];
6277 *ft_byte |= BIT(ftidx % 8);
6281 * wiphy_ext_feature_isset - check the extended feature flag
6283 * @wiphy: the wiphy to modify.
6284 * @ftidx: extended feature bit index.
6286 * The extended features are flagged in multiple bytes (see
6287 * &struct wiphy.@ext_features)
6290 wiphy_ext_feature_isset(struct wiphy *wiphy,
6291 enum nl80211_ext_feature_index ftidx)
6295 ft_byte = wiphy->ext_features[ftidx / 8];
6296 return (ft_byte & BIT(ftidx % 8)) != 0;
6300 * cfg80211_free_nan_func - free NAN function
6301 * @f: NAN function that should be freed
6303 * Frees all the NAN function and all it's allocated members.
6305 void cfg80211_free_nan_func(struct cfg80211_nan_func *f);
6308 * struct cfg80211_nan_match_params - NAN match parameters
6309 * @type: the type of the function that triggered a match. If it is
6310 * %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber.
6311 * If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery
6313 * If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up.
6314 * @inst_id: the local instance id
6315 * @peer_inst_id: the instance id of the peer's function
6316 * @addr: the MAC address of the peer
6317 * @info_len: the length of the &info
6318 * @info: the Service Specific Info from the peer (if any)
6319 * @cookie: unique identifier of the corresponding function
6321 struct cfg80211_nan_match_params {
6322 enum nl80211_nan_function_type type;
6332 * cfg80211_nan_match - report a match for a NAN function.
6333 * @wdev: the wireless device reporting the match
6334 * @match: match notification parameters
6335 * @gfp: allocation flags
6337 * This function reports that the a NAN function had a match. This
6338 * can be a subscribe that had a match or a solicited publish that
6339 * was sent. It can also be a follow up that was received.
6341 void cfg80211_nan_match(struct wireless_dev *wdev,
6342 struct cfg80211_nan_match_params *match, gfp_t gfp);
6345 * cfg80211_nan_func_terminated - notify about NAN function termination.
6347 * @wdev: the wireless device reporting the match
6348 * @inst_id: the local instance id
6349 * @reason: termination reason (one of the NL80211_NAN_FUNC_TERM_REASON_*)
6350 * @cookie: unique NAN function identifier
6351 * @gfp: allocation flags
6353 * This function reports that the a NAN function is terminated.
6355 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
6357 enum nl80211_nan_func_term_reason reason,
6358 u64 cookie, gfp_t gfp);
6360 /* ethtool helper */
6361 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info);
6364 * cfg80211_external_auth_request - userspace request for authentication
6365 * @netdev: network device
6366 * @params: External authentication parameters
6367 * @gfp: allocation flags
6368 * Returns: 0 on success, < 0 on error
6370 int cfg80211_external_auth_request(struct net_device *netdev,
6371 struct cfg80211_external_auth_params *params,
6374 /* Logging, debugging and troubleshooting/diagnostic helpers. */
6376 /* wiphy_printk helpers, similar to dev_printk */
6378 #define wiphy_printk(level, wiphy, format, args...) \
6379 dev_printk(level, &(wiphy)->dev, format, ##args)
6380 #define wiphy_emerg(wiphy, format, args...) \
6381 dev_emerg(&(wiphy)->dev, format, ##args)
6382 #define wiphy_alert(wiphy, format, args...) \
6383 dev_alert(&(wiphy)->dev, format, ##args)
6384 #define wiphy_crit(wiphy, format, args...) \
6385 dev_crit(&(wiphy)->dev, format, ##args)
6386 #define wiphy_err(wiphy, format, args...) \
6387 dev_err(&(wiphy)->dev, format, ##args)
6388 #define wiphy_warn(wiphy, format, args...) \
6389 dev_warn(&(wiphy)->dev, format, ##args)
6390 #define wiphy_notice(wiphy, format, args...) \
6391 dev_notice(&(wiphy)->dev, format, ##args)
6392 #define wiphy_info(wiphy, format, args...) \
6393 dev_info(&(wiphy)->dev, format, ##args)
6395 #define wiphy_debug(wiphy, format, args...) \
6396 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
6398 #define wiphy_dbg(wiphy, format, args...) \
6399 dev_dbg(&(wiphy)->dev, format, ##args)
6401 #if defined(VERBOSE_DEBUG)
6402 #define wiphy_vdbg wiphy_dbg
6404 #define wiphy_vdbg(wiphy, format, args...) \
6407 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
6413 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
6414 * of using a WARN/WARN_ON to get the message out, including the
6415 * file/line information and a backtrace.
6417 #define wiphy_WARN(wiphy, format, args...) \
6418 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
6420 #endif /* __NET_CFG80211_H */