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 2015-2016 Intel Deutschland GmbH
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/netdevice.h>
16 #include <linux/debugfs.h>
17 #include <linux/list.h>
18 #include <linux/bug.h>
19 #include <linux/netlink.h>
20 #include <linux/skbuff.h>
21 #include <linux/nl80211.h>
22 #include <linux/if_ether.h>
23 #include <linux/ieee80211.h>
24 #include <linux/net.h>
25 #include <net/regulatory.h>
30 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
31 * userspace and drivers, and offers some utility functionality associated
32 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
33 * by all modern wireless drivers in Linux, so that they offer a consistent
34 * API through nl80211. For backward compatibility, cfg80211 also offers
35 * wireless extensions to userspace, but hides them from drivers completely.
37 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
43 * DOC: Device registration
45 * In order for a driver to use cfg80211, it must register the hardware device
46 * with cfg80211. This happens through a number of hardware capability structs
49 * The fundamental structure for each device is the 'wiphy', of which each
50 * instance describes a physical wireless device connected to the system. Each
51 * such wiphy can have zero, one, or many virtual interfaces associated with
52 * it, which need to be identified as such by pointing the network interface's
53 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
54 * the wireless part of the interface, normally this struct is embedded in the
55 * network interface's private data area. Drivers can optionally allow creating
56 * or destroying virtual interfaces on the fly, but without at least one or the
57 * ability to create some the wireless device isn't useful.
59 * Each wiphy structure contains device capability information, and also has
60 * a pointer to the various operations the driver offers. The definitions and
61 * structures here describe these capabilities in detail.
67 * wireless hardware capability structures
71 * enum ieee80211_channel_flags - channel flags
73 * Channel flags set by the regulatory control code.
75 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
76 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
77 * sending probe requests or beaconing.
78 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
79 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
81 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
83 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
84 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
85 * this flag indicates that an 80 MHz channel cannot use this
86 * channel as the control or any of the secondary channels.
87 * This may be due to the driver or due to regulatory bandwidth
89 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
90 * this flag indicates that an 160 MHz channel cannot use this
91 * channel as the control or any of the secondary channels.
92 * This may be due to the driver or due to regulatory bandwidth
94 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
95 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
96 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
98 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
102 enum ieee80211_channel_flags {
103 IEEE80211_CHAN_DISABLED = 1<<0,
104 IEEE80211_CHAN_NO_IR = 1<<1,
106 IEEE80211_CHAN_RADAR = 1<<3,
107 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
108 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
109 IEEE80211_CHAN_NO_OFDM = 1<<6,
110 IEEE80211_CHAN_NO_80MHZ = 1<<7,
111 IEEE80211_CHAN_NO_160MHZ = 1<<8,
112 IEEE80211_CHAN_INDOOR_ONLY = 1<<9,
113 IEEE80211_CHAN_IR_CONCURRENT = 1<<10,
114 IEEE80211_CHAN_NO_20MHZ = 1<<11,
115 IEEE80211_CHAN_NO_10MHZ = 1<<12,
118 #define IEEE80211_CHAN_NO_HT40 \
119 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
121 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
122 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
125 * struct ieee80211_channel - channel definition
127 * This structure describes a single channel for use
130 * @center_freq: center frequency in MHz
131 * @hw_value: hardware-specific value for the channel
132 * @flags: channel flags from &enum ieee80211_channel_flags.
133 * @orig_flags: channel flags at registration time, used by regulatory
134 * code to support devices with additional restrictions
135 * @band: band this channel belongs to.
136 * @max_antenna_gain: maximum antenna gain in dBi
137 * @max_power: maximum transmission power (in dBm)
138 * @max_reg_power: maximum regulatory transmission power (in dBm)
139 * @beacon_found: helper to regulatory code to indicate when a beacon
140 * has been found on this channel. Use regulatory_hint_found_beacon()
141 * to enable this, this is useful only on 5 GHz band.
142 * @orig_mag: internal use
143 * @orig_mpwr: internal use
144 * @dfs_state: current state of this channel. Only relevant if radar is required
146 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
147 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
149 struct ieee80211_channel {
150 enum nl80211_band band;
154 int max_antenna_gain;
159 int orig_mag, orig_mpwr;
160 enum nl80211_dfs_state dfs_state;
161 unsigned long dfs_state_entered;
162 unsigned int dfs_cac_ms;
166 * enum ieee80211_rate_flags - rate flags
168 * Hardware/specification flags for rates. These are structured
169 * in a way that allows using the same bitrate structure for
170 * different bands/PHY modes.
172 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
173 * preamble on this bitrate; only relevant in 2.4GHz band and
175 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
176 * when used with 802.11a (on the 5 GHz band); filled by the
177 * core code when registering the wiphy.
178 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
179 * when used with 802.11b (on the 2.4 GHz band); filled by the
180 * core code when registering the wiphy.
181 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
182 * when used with 802.11g (on the 2.4 GHz band); filled by the
183 * core code when registering the wiphy.
184 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
185 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
186 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
188 enum ieee80211_rate_flags {
189 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
190 IEEE80211_RATE_MANDATORY_A = 1<<1,
191 IEEE80211_RATE_MANDATORY_B = 1<<2,
192 IEEE80211_RATE_MANDATORY_G = 1<<3,
193 IEEE80211_RATE_ERP_G = 1<<4,
194 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5,
195 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6,
199 * enum ieee80211_bss_type - BSS type filter
201 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
202 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS
203 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS
204 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
205 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
207 enum ieee80211_bss_type {
208 IEEE80211_BSS_TYPE_ESS,
209 IEEE80211_BSS_TYPE_PBSS,
210 IEEE80211_BSS_TYPE_IBSS,
211 IEEE80211_BSS_TYPE_MBSS,
212 IEEE80211_BSS_TYPE_ANY
216 * enum ieee80211_privacy - BSS privacy filter
218 * @IEEE80211_PRIVACY_ON: privacy bit set
219 * @IEEE80211_PRIVACY_OFF: privacy bit clear
220 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
222 enum ieee80211_privacy {
223 IEEE80211_PRIVACY_ON,
224 IEEE80211_PRIVACY_OFF,
225 IEEE80211_PRIVACY_ANY
228 #define IEEE80211_PRIVACY(x) \
229 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
232 * struct ieee80211_rate - bitrate definition
234 * This structure describes a bitrate that an 802.11 PHY can
235 * operate with. The two values @hw_value and @hw_value_short
236 * are only for driver use when pointers to this structure are
239 * @flags: rate-specific flags
240 * @bitrate: bitrate in units of 100 Kbps
241 * @hw_value: driver/hardware value for this rate
242 * @hw_value_short: driver/hardware value for this rate when
243 * short preamble is used
245 struct ieee80211_rate {
248 u16 hw_value, hw_value_short;
252 * struct ieee80211_sta_ht_cap - STA's HT capabilities
254 * This structure describes most essential parameters needed
255 * to describe 802.11n HT capabilities for an STA.
257 * @ht_supported: is HT supported by the STA
258 * @cap: HT capabilities map as described in 802.11n spec
259 * @ampdu_factor: Maximum A-MPDU length factor
260 * @ampdu_density: Minimum A-MPDU spacing
261 * @mcs: Supported MCS rates
263 struct ieee80211_sta_ht_cap {
264 u16 cap; /* use IEEE80211_HT_CAP_ */
268 struct ieee80211_mcs_info mcs;
272 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
274 * This structure describes most essential parameters needed
275 * to describe 802.11ac VHT capabilities for an STA.
277 * @vht_supported: is VHT supported by the STA
278 * @cap: VHT capabilities map as described in 802.11ac spec
279 * @vht_mcs: Supported VHT MCS rates
281 struct ieee80211_sta_vht_cap {
283 u32 cap; /* use IEEE80211_VHT_CAP_ */
284 struct ieee80211_vht_mcs_info vht_mcs;
288 * struct ieee80211_supported_band - frequency band definition
290 * This structure describes a frequency band a wiphy
291 * is able to operate in.
293 * @channels: Array of channels the hardware can operate in
295 * @band: the band this structure represents
296 * @n_channels: Number of channels in @channels
297 * @bitrates: Array of bitrates the hardware can operate with
298 * in this band. Must be sorted to give a valid "supported
299 * rates" IE, i.e. CCK rates first, then OFDM.
300 * @n_bitrates: Number of bitrates in @bitrates
301 * @ht_cap: HT capabilities in this band
302 * @vht_cap: VHT capabilities in this band
304 struct ieee80211_supported_band {
305 struct ieee80211_channel *channels;
306 struct ieee80211_rate *bitrates;
307 enum nl80211_band band;
310 struct ieee80211_sta_ht_cap ht_cap;
311 struct ieee80211_sta_vht_cap vht_cap;
315 * Wireless hardware/device configuration structures and methods
319 * DOC: Actions and configuration
321 * Each wireless device and each virtual interface offer a set of configuration
322 * operations and other actions that are invoked by userspace. Each of these
323 * actions is described in the operations structure, and the parameters these
324 * operations use are described separately.
326 * Additionally, some operations are asynchronous and expect to get status
327 * information via some functions that drivers need to call.
329 * Scanning and BSS list handling with its associated functionality is described
330 * in a separate chapter.
333 #define VHT_MUMIMO_GROUPS_DATA_LEN (WLAN_MEMBERSHIP_LEN +\
334 WLAN_USER_POSITION_LEN)
337 * struct vif_params - describes virtual interface parameters
338 * @use_4addr: use 4-address frames
339 * @macaddr: address to use for this virtual interface.
340 * If this parameter is set to zero address the driver may
341 * determine the address as needed.
342 * This feature is only fully supported by drivers that enable the
343 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
344 ** only p2p devices with specified MAC.
345 * @vht_mumimo_groups: MU-MIMO groupID. used for monitoring only
346 * packets belonging to that MU-MIMO groupID.
350 u8 macaddr[ETH_ALEN];
351 u8 vht_mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN];
355 * struct key_params - key information
357 * Information about a key
360 * @key_len: length of key material
361 * @cipher: cipher suite selector
362 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
363 * with the get_key() callback, must be in little endian,
364 * length given by @seq_len.
365 * @seq_len: length of @seq.
376 * struct cfg80211_chan_def - channel definition
377 * @chan: the (control) channel
378 * @width: channel width
379 * @center_freq1: center frequency of first segment
380 * @center_freq2: center frequency of second segment
381 * (only with 80+80 MHz)
383 struct cfg80211_chan_def {
384 struct ieee80211_channel *chan;
385 enum nl80211_chan_width width;
391 * cfg80211_get_chandef_type - return old channel type from chandef
392 * @chandef: the channel definition
394 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
395 * chandef, which must have a bandwidth allowing this conversion.
397 static inline enum nl80211_channel_type
398 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
400 switch (chandef->width) {
401 case NL80211_CHAN_WIDTH_20_NOHT:
402 return NL80211_CHAN_NO_HT;
403 case NL80211_CHAN_WIDTH_20:
404 return NL80211_CHAN_HT20;
405 case NL80211_CHAN_WIDTH_40:
406 if (chandef->center_freq1 > chandef->chan->center_freq)
407 return NL80211_CHAN_HT40PLUS;
408 return NL80211_CHAN_HT40MINUS;
411 return NL80211_CHAN_NO_HT;
416 * cfg80211_chandef_create - create channel definition using channel type
417 * @chandef: the channel definition struct to fill
418 * @channel: the control channel
419 * @chantype: the channel type
421 * Given a channel type, create a channel definition.
423 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
424 struct ieee80211_channel *channel,
425 enum nl80211_channel_type chantype);
428 * cfg80211_chandef_identical - check if two channel definitions are identical
429 * @chandef1: first channel definition
430 * @chandef2: second channel definition
432 * Return: %true if the channels defined by the channel definitions are
433 * identical, %false otherwise.
436 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
437 const struct cfg80211_chan_def *chandef2)
439 return (chandef1->chan == chandef2->chan &&
440 chandef1->width == chandef2->width &&
441 chandef1->center_freq1 == chandef2->center_freq1 &&
442 chandef1->center_freq2 == chandef2->center_freq2);
446 * cfg80211_chandef_compatible - check if two channel definitions are compatible
447 * @chandef1: first channel definition
448 * @chandef2: second channel definition
450 * Return: %NULL if the given channel definitions are incompatible,
451 * chandef1 or chandef2 otherwise.
453 const struct cfg80211_chan_def *
454 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
455 const struct cfg80211_chan_def *chandef2);
458 * cfg80211_chandef_valid - check if a channel definition is valid
459 * @chandef: the channel definition to check
460 * Return: %true if the channel definition is valid. %false otherwise.
462 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
465 * cfg80211_chandef_usable - check if secondary channels can be used
466 * @wiphy: the wiphy to validate against
467 * @chandef: the channel definition to check
468 * @prohibited_flags: the regulatory channel flags that must not be set
469 * Return: %true if secondary channels are usable. %false otherwise.
471 bool cfg80211_chandef_usable(struct wiphy *wiphy,
472 const struct cfg80211_chan_def *chandef,
473 u32 prohibited_flags);
476 * cfg80211_chandef_dfs_required - checks if radar detection is required
477 * @wiphy: the wiphy to validate against
478 * @chandef: the channel definition to check
479 * @iftype: the interface type as specified in &enum nl80211_iftype
481 * 1 if radar detection is required, 0 if it is not, < 0 on error
483 int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
484 const struct cfg80211_chan_def *chandef,
485 enum nl80211_iftype iftype);
488 * ieee80211_chandef_rate_flags - returns rate flags for a channel
490 * In some channel types, not all rates may be used - for example CCK
491 * rates may not be used in 5/10 MHz channels.
493 * @chandef: channel definition for the channel
495 * Returns: rate flags which apply for this channel
497 static inline enum ieee80211_rate_flags
498 ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
500 switch (chandef->width) {
501 case NL80211_CHAN_WIDTH_5:
502 return IEEE80211_RATE_SUPPORTS_5MHZ;
503 case NL80211_CHAN_WIDTH_10:
504 return IEEE80211_RATE_SUPPORTS_10MHZ;
512 * ieee80211_chandef_max_power - maximum transmission power for the chandef
514 * In some regulations, the transmit power may depend on the configured channel
515 * bandwidth which may be defined as dBm/MHz. This function returns the actual
516 * max_power for non-standard (20 MHz) channels.
518 * @chandef: channel definition for the channel
520 * Returns: maximum allowed transmission power in dBm for the chandef
523 ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef)
525 switch (chandef->width) {
526 case NL80211_CHAN_WIDTH_5:
527 return min(chandef->chan->max_reg_power - 6,
528 chandef->chan->max_power);
529 case NL80211_CHAN_WIDTH_10:
530 return min(chandef->chan->max_reg_power - 3,
531 chandef->chan->max_power);
535 return chandef->chan->max_power;
539 * enum survey_info_flags - survey information flags
541 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
542 * @SURVEY_INFO_IN_USE: channel is currently being used
543 * @SURVEY_INFO_TIME: active time (in ms) was filled in
544 * @SURVEY_INFO_TIME_BUSY: busy time was filled in
545 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in
546 * @SURVEY_INFO_TIME_RX: receive time was filled in
547 * @SURVEY_INFO_TIME_TX: transmit time was filled in
548 * @SURVEY_INFO_TIME_SCAN: scan time was filled in
550 * Used by the driver to indicate which info in &struct survey_info
551 * it has filled in during the get_survey().
553 enum survey_info_flags {
554 SURVEY_INFO_NOISE_DBM = BIT(0),
555 SURVEY_INFO_IN_USE = BIT(1),
556 SURVEY_INFO_TIME = BIT(2),
557 SURVEY_INFO_TIME_BUSY = BIT(3),
558 SURVEY_INFO_TIME_EXT_BUSY = BIT(4),
559 SURVEY_INFO_TIME_RX = BIT(5),
560 SURVEY_INFO_TIME_TX = BIT(6),
561 SURVEY_INFO_TIME_SCAN = BIT(7),
565 * struct survey_info - channel survey response
567 * @channel: the channel this survey record reports, may be %NULL for a single
568 * record to report global statistics
569 * @filled: bitflag of flags from &enum survey_info_flags
570 * @noise: channel noise in dBm. This and all following fields are
572 * @time: amount of time in ms the radio was turn on (on the channel)
573 * @time_busy: amount of time the primary channel was sensed busy
574 * @time_ext_busy: amount of time the extension channel was sensed busy
575 * @time_rx: amount of time the radio spent receiving data
576 * @time_tx: amount of time the radio spent transmitting data
577 * @time_scan: amount of time the radio spent for scanning
579 * Used by dump_survey() to report back per-channel survey information.
581 * This structure can later be expanded with things like
582 * channel duty cycle etc.
585 struct ieee80211_channel *channel;
596 #define CFG80211_MAX_WEP_KEYS 4
599 * struct cfg80211_crypto_settings - Crypto settings
600 * @wpa_versions: indicates which, if any, WPA versions are enabled
601 * (from enum nl80211_wpa_versions)
602 * @cipher_group: group key cipher suite (or 0 if unset)
603 * @n_ciphers_pairwise: number of AP supported unicast ciphers
604 * @ciphers_pairwise: unicast key cipher suites
605 * @n_akm_suites: number of AKM suites
606 * @akm_suites: AKM suites
607 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
608 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
609 * required to assume that the port is unauthorized until authorized by
610 * user space. Otherwise, port is marked authorized by default.
611 * @control_port_ethertype: the control port protocol that should be
612 * allowed through even on unauthorized ports
613 * @control_port_no_encrypt: TRUE to prevent encryption of control port
615 * @wep_keys: static WEP keys, if not NULL points to an array of
616 * CFG80211_MAX_WEP_KEYS WEP keys
617 * @wep_tx_key: key index (0..3) of the default TX static WEP key
619 struct cfg80211_crypto_settings {
622 int n_ciphers_pairwise;
623 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
625 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
627 __be16 control_port_ethertype;
628 bool control_port_no_encrypt;
629 struct key_params *wep_keys;
634 * struct cfg80211_beacon_data - beacon data
635 * @head: head portion of beacon (before TIM IE)
636 * or %NULL if not changed
637 * @tail: tail portion of beacon (after TIM IE)
638 * or %NULL if not changed
639 * @head_len: length of @head
640 * @tail_len: length of @tail
641 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
642 * @beacon_ies_len: length of beacon_ies in octets
643 * @proberesp_ies: extra information element(s) to add into Probe Response
645 * @proberesp_ies_len: length of proberesp_ies in octets
646 * @assocresp_ies: extra information element(s) to add into (Re)Association
647 * Response frames or %NULL
648 * @assocresp_ies_len: length of assocresp_ies in octets
649 * @probe_resp_len: length of probe response template (@probe_resp)
650 * @probe_resp: probe response template (AP mode only)
652 struct cfg80211_beacon_data {
653 const u8 *head, *tail;
654 const u8 *beacon_ies;
655 const u8 *proberesp_ies;
656 const u8 *assocresp_ies;
657 const u8 *probe_resp;
659 size_t head_len, tail_len;
660 size_t beacon_ies_len;
661 size_t proberesp_ies_len;
662 size_t assocresp_ies_len;
663 size_t probe_resp_len;
671 * struct cfg80211_acl_data - Access control list data
673 * @acl_policy: ACL policy to be applied on the station's
674 * entry specified by mac_addr
675 * @n_acl_entries: Number of MAC address entries passed
676 * @mac_addrs: List of MAC addresses of stations to be used for ACL
678 struct cfg80211_acl_data {
679 enum nl80211_acl_policy acl_policy;
683 struct mac_address mac_addrs[];
687 * cfg80211_bitrate_mask - masks for bitrate control
689 struct cfg80211_bitrate_mask {
692 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN];
693 u16 vht_mcs[NL80211_VHT_NSS_MAX];
694 enum nl80211_txrate_gi gi;
695 } control[NUM_NL80211_BANDS];
699 * struct cfg80211_ap_settings - AP configuration
701 * Used to configure an AP interface.
703 * @chandef: defines the channel to use
704 * @beacon: beacon data
705 * @beacon_interval: beacon interval
706 * @dtim_period: DTIM period
707 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
709 * @ssid_len: length of @ssid
710 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
711 * @crypto: crypto settings
712 * @privacy: the BSS uses privacy
713 * @auth_type: Authentication type (algorithm)
714 * @smps_mode: SMPS mode
715 * @inactivity_timeout: time in seconds to determine station's inactivity.
716 * @p2p_ctwindow: P2P CT Window
717 * @p2p_opp_ps: P2P opportunistic PS
718 * @acl: ACL configuration used by the drivers which has support for
719 * MAC address based access control
720 * @pbss: If set, start as a PCP instead of AP. Relevant for DMG
722 * @beacon_rate: bitrate to be used for beacons
724 struct cfg80211_ap_settings {
725 struct cfg80211_chan_def chandef;
727 struct cfg80211_beacon_data beacon;
729 int beacon_interval, dtim_period;
732 enum nl80211_hidden_ssid hidden_ssid;
733 struct cfg80211_crypto_settings crypto;
735 enum nl80211_auth_type auth_type;
736 enum nl80211_smps_mode smps_mode;
737 int inactivity_timeout;
740 const struct cfg80211_acl_data *acl;
742 struct cfg80211_bitrate_mask beacon_rate;
746 * struct cfg80211_csa_settings - channel switch settings
748 * Used for channel switch
750 * @chandef: defines the channel to use after the switch
751 * @beacon_csa: beacon data while performing the switch
752 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
753 * @counter_offsets_presp: offsets of the counters within the probe response
754 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
755 * @n_counter_offsets_presp: number of csa counters in the probe response
756 * @beacon_after: beacon data to be used on the new channel
757 * @radar_required: whether radar detection is required on the new channel
758 * @block_tx: whether transmissions should be blocked while changing
759 * @count: number of beacons until switch
761 struct cfg80211_csa_settings {
762 struct cfg80211_chan_def chandef;
763 struct cfg80211_beacon_data beacon_csa;
764 const u16 *counter_offsets_beacon;
765 const u16 *counter_offsets_presp;
766 unsigned int n_counter_offsets_beacon;
767 unsigned int n_counter_offsets_presp;
768 struct cfg80211_beacon_data beacon_after;
775 * struct iface_combination_params - input parameters for interface combinations
777 * Used to pass interface combination parameters
779 * @num_different_channels: the number of different channels we want
780 * to use for verification
781 * @radar_detect: a bitmap where each bit corresponds to a channel
782 * width where radar detection is needed, as in the definition of
783 * &struct ieee80211_iface_combination.@radar_detect_widths
784 * @iftype_num: array with the number of interfaces of each interface
785 * type. The index is the interface type as specified in &enum
787 * @beacon_int_gcd: a value specifying GCD of all beaconing interfaces,
788 * the GCD of a single value is considered the value itself, so for
789 * a single interface this should be set to that interface's beacon
791 * @beacon_int_different: a flag indicating whether or not all beacon
792 * intervals (of beaconing interfaces) are different or not.
794 struct iface_combination_params {
795 int num_different_channels;
797 int iftype_num[NUM_NL80211_IFTYPES];
799 bool beacon_int_different;
803 * enum station_parameters_apply_mask - station parameter values to apply
804 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
805 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
806 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
808 * Not all station parameters have in-band "no change" signalling,
809 * for those that don't these flags will are used.
811 enum station_parameters_apply_mask {
812 STATION_PARAM_APPLY_UAPSD = BIT(0),
813 STATION_PARAM_APPLY_CAPABILITY = BIT(1),
814 STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
818 * struct station_parameters - station parameters
820 * Used to change and create a new station.
822 * @vlan: vlan interface station should belong to
823 * @supported_rates: supported rates in IEEE 802.11 format
824 * (or NULL for no change)
825 * @supported_rates_len: number of supported rates
826 * @sta_flags_mask: station flags that changed
827 * (bitmask of BIT(NL80211_STA_FLAG_...))
828 * @sta_flags_set: station flags values
829 * (bitmask of BIT(NL80211_STA_FLAG_...))
830 * @listen_interval: listen interval or -1 for no change
831 * @aid: AID or zero for no change
832 * @peer_aid: mesh peer AID or zero for no change
833 * @plink_action: plink action to take
834 * @plink_state: set the peer link state for a station
835 * @ht_capa: HT capabilities of station
836 * @vht_capa: VHT capabilities of station
837 * @uapsd_queues: bitmap of queues configured for uapsd. same format
838 * as the AC bitmap in the QoS info field
839 * @max_sp: max Service Period. same format as the MAX_SP in the
840 * QoS info field (but already shifted down)
841 * @sta_modify_mask: bitmap indicating which parameters changed
842 * (for those that don't have a natural "no change" value),
843 * see &enum station_parameters_apply_mask
844 * @local_pm: local link-specific mesh power save mode (no change when set
846 * @capability: station capability
847 * @ext_capab: extended capabilities of the station
848 * @ext_capab_len: number of extended capabilities
849 * @supported_channels: supported channels in IEEE 802.11 format
850 * @supported_channels_len: number of supported channels
851 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
852 * @supported_oper_classes_len: number of supported operating classes
853 * @opmode_notif: operating mode field from Operating Mode Notification
854 * @opmode_notif_used: information if operating mode field is used
855 * @support_p2p_ps: information if station supports P2P PS mechanism
857 struct station_parameters {
858 const u8 *supported_rates;
859 struct net_device *vlan;
860 u32 sta_flags_mask, sta_flags_set;
865 u8 supported_rates_len;
868 const struct ieee80211_ht_cap *ht_capa;
869 const struct ieee80211_vht_cap *vht_capa;
872 enum nl80211_mesh_power_mode local_pm;
876 const u8 *supported_channels;
877 u8 supported_channels_len;
878 const u8 *supported_oper_classes;
879 u8 supported_oper_classes_len;
881 bool opmode_notif_used;
886 * struct station_del_parameters - station deletion parameters
888 * Used to delete a station entry (or all stations).
890 * @mac: MAC address of the station to remove or NULL to remove all stations
891 * @subtype: Management frame subtype to use for indicating removal
892 * (10 = Disassociation, 12 = Deauthentication)
893 * @reason_code: Reason code for the Disassociation/Deauthentication frame
895 struct station_del_parameters {
902 * enum cfg80211_station_type - the type of station being modified
903 * @CFG80211_STA_AP_CLIENT: client of an AP interface
904 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
905 * unassociated (update properties for this type of client is permitted)
906 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
907 * the AP MLME in the device
908 * @CFG80211_STA_AP_STA: AP station on managed interface
909 * @CFG80211_STA_IBSS: IBSS station
910 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
911 * while TDLS setup is in progress, it moves out of this state when
912 * being marked authorized; use this only if TDLS with external setup is
914 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
915 * entry that is operating, has been marked authorized by userspace)
916 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
917 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
919 enum cfg80211_station_type {
920 CFG80211_STA_AP_CLIENT,
921 CFG80211_STA_AP_CLIENT_UNASSOC,
922 CFG80211_STA_AP_MLME_CLIENT,
925 CFG80211_STA_TDLS_PEER_SETUP,
926 CFG80211_STA_TDLS_PEER_ACTIVE,
927 CFG80211_STA_MESH_PEER_KERNEL,
928 CFG80211_STA_MESH_PEER_USER,
932 * cfg80211_check_station_change - validate parameter changes
933 * @wiphy: the wiphy this operates on
934 * @params: the new parameters for a station
935 * @statype: the type of station being modified
937 * Utility function for the @change_station driver method. Call this function
938 * with the appropriate station type looking up the station (and checking that
939 * it exists). It will verify whether the station change is acceptable, and if
940 * not will return an error code. Note that it may modify the parameters for
941 * backward compatibility reasons, so don't use them before calling this.
943 int cfg80211_check_station_change(struct wiphy *wiphy,
944 struct station_parameters *params,
945 enum cfg80211_station_type statype);
948 * enum station_info_rate_flags - bitrate info flags
950 * Used by the driver to indicate the specific rate transmission
951 * type for 802.11n transmissions.
953 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
954 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
955 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
956 * @RATE_INFO_FLAGS_60G: 60GHz MCS
958 enum rate_info_flags {
959 RATE_INFO_FLAGS_MCS = BIT(0),
960 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
961 RATE_INFO_FLAGS_SHORT_GI = BIT(2),
962 RATE_INFO_FLAGS_60G = BIT(3),
966 * enum rate_info_bw - rate bandwidth information
968 * Used by the driver to indicate the rate bandwidth.
970 * @RATE_INFO_BW_5: 5 MHz bandwidth
971 * @RATE_INFO_BW_10: 10 MHz bandwidth
972 * @RATE_INFO_BW_20: 20 MHz bandwidth
973 * @RATE_INFO_BW_40: 40 MHz bandwidth
974 * @RATE_INFO_BW_80: 80 MHz bandwidth
975 * @RATE_INFO_BW_160: 160 MHz bandwidth
987 * struct rate_info - bitrate information
989 * Information about a receiving or transmitting bitrate
991 * @flags: bitflag of flags from &enum rate_info_flags
992 * @mcs: mcs index if struct describes a 802.11n bitrate
993 * @legacy: bitrate in 100kbit/s for 802.11abg
994 * @nss: number of streams (VHT only)
995 * @bw: bandwidth (from &enum rate_info_bw)
1006 * enum station_info_rate_flags - bitrate info flags
1008 * Used by the driver to indicate the specific rate transmission
1009 * type for 802.11n transmissions.
1011 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
1012 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
1013 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
1015 enum bss_param_flags {
1016 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
1017 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
1018 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
1022 * struct sta_bss_parameters - BSS parameters for the attached station
1024 * Information about the currently associated BSS
1026 * @flags: bitflag of flags from &enum bss_param_flags
1027 * @dtim_period: DTIM period for the BSS
1028 * @beacon_interval: beacon interval
1030 struct sta_bss_parameters {
1033 u16 beacon_interval;
1037 * struct cfg80211_tid_stats - per-TID statistics
1038 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to
1039 * indicate the relevant values in this struct are filled
1040 * @rx_msdu: number of received MSDUs
1041 * @tx_msdu: number of (attempted) transmitted MSDUs
1042 * @tx_msdu_retries: number of retries (not counting the first) for
1044 * @tx_msdu_failed: number of failed transmitted MSDUs
1046 struct cfg80211_tid_stats {
1050 u64 tx_msdu_retries;
1054 #define IEEE80211_MAX_CHAINS 4
1057 * struct station_info - station information
1059 * Station information filled by driver for get_station() and dump_station.
1061 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to
1062 * indicate the relevant values in this struct for them
1063 * @connected_time: time(in secs) since a station is last connected
1064 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1065 * @rx_bytes: bytes (size of MPDUs) received from this station
1066 * @tx_bytes: bytes (size of MPDUs) transmitted to this station
1067 * @llid: mesh local link id
1068 * @plid: mesh peer link id
1069 * @plink_state: mesh peer link state
1070 * @signal: The signal strength, type depends on the wiphy's signal_type.
1071 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1072 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1073 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1074 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1075 * @chain_signal: per-chain signal strength of last received packet in dBm
1076 * @chain_signal_avg: per-chain signal strength average in dBm
1077 * @txrate: current unicast bitrate from this station
1078 * @rxrate: current unicast bitrate to this station
1079 * @rx_packets: packets (MSDUs & MMPDUs) received from this station
1080 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station
1081 * @tx_retries: cumulative retry counts (MPDUs)
1082 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK)
1083 * @rx_dropped_misc: Dropped for un-specified reason.
1084 * @bss_param: current BSS parameters
1085 * @generation: generation number for nl80211 dumps.
1086 * This number should increase every time the list of stations
1087 * changes, i.e. when a station is added or removed, so that
1088 * userspace can tell whether it got a consistent snapshot.
1089 * @assoc_req_ies: IEs from (Re)Association Request.
1090 * This is used only when in AP mode with drivers that do not use
1091 * user space MLME/SME implementation. The information is provided for
1092 * the cfg80211_new_sta() calls to notify user space of the IEs.
1093 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1094 * @sta_flags: station flags mask & values
1095 * @beacon_loss_count: Number of times beacon loss event has triggered.
1096 * @t_offset: Time offset of the station relative to this host.
1097 * @local_pm: local mesh STA power save mode
1098 * @peer_pm: peer mesh STA power save mode
1099 * @nonpeer_pm: non-peer mesh STA power save mode
1100 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1101 * towards this station.
1102 * @rx_beacon: number of beacons received from this peer
1103 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
1105 * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer
1106 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
1107 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
1109 struct station_info {
1122 s8 chain_signal[IEEE80211_MAX_CHAINS];
1123 s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
1125 struct rate_info txrate;
1126 struct rate_info rxrate;
1131 u32 rx_dropped_misc;
1132 struct sta_bss_parameters bss_param;
1133 struct nl80211_sta_flag_update sta_flags;
1137 const u8 *assoc_req_ies;
1138 size_t assoc_req_ies_len;
1140 u32 beacon_loss_count;
1142 enum nl80211_mesh_power_mode local_pm;
1143 enum nl80211_mesh_power_mode peer_pm;
1144 enum nl80211_mesh_power_mode nonpeer_pm;
1146 u32 expected_throughput;
1150 u8 rx_beacon_signal_avg;
1151 struct cfg80211_tid_stats pertid[IEEE80211_NUM_TIDS + 1];
1154 #if IS_ENABLED(CONFIG_CFG80211)
1156 * cfg80211_get_station - retrieve information about a given station
1157 * @dev: the device where the station is supposed to be connected to
1158 * @mac_addr: the mac address of the station of interest
1159 * @sinfo: pointer to the structure to fill with the information
1161 * Returns 0 on success and sinfo is filled with the available information
1162 * otherwise returns a negative error code and the content of sinfo has to be
1163 * considered undefined.
1165 int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
1166 struct station_info *sinfo);
1168 static inline int cfg80211_get_station(struct net_device *dev,
1170 struct station_info *sinfo)
1177 * enum monitor_flags - monitor flags
1179 * Monitor interface configuration flags. Note that these must be the bits
1180 * according to the nl80211 flags.
1182 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1183 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1184 * @MONITOR_FLAG_CONTROL: pass control frames
1185 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1186 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1187 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1189 enum monitor_flags {
1190 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
1191 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
1192 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
1193 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
1194 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
1195 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE,
1199 * enum mpath_info_flags - mesh path information flags
1201 * Used by the driver to indicate which info in &struct mpath_info it has filled
1202 * in during get_station() or dump_station().
1204 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1205 * @MPATH_INFO_SN: @sn filled
1206 * @MPATH_INFO_METRIC: @metric filled
1207 * @MPATH_INFO_EXPTIME: @exptime filled
1208 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1209 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1210 * @MPATH_INFO_FLAGS: @flags filled
1212 enum mpath_info_flags {
1213 MPATH_INFO_FRAME_QLEN = BIT(0),
1214 MPATH_INFO_SN = BIT(1),
1215 MPATH_INFO_METRIC = BIT(2),
1216 MPATH_INFO_EXPTIME = BIT(3),
1217 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
1218 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
1219 MPATH_INFO_FLAGS = BIT(6),
1223 * struct mpath_info - mesh path information
1225 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1227 * @filled: bitfield of flags from &enum mpath_info_flags
1228 * @frame_qlen: number of queued frames for this destination
1229 * @sn: target sequence number
1230 * @metric: metric (cost) of this mesh path
1231 * @exptime: expiration time for the mesh path from now, in msecs
1232 * @flags: mesh path flags
1233 * @discovery_timeout: total mesh path discovery timeout, in msecs
1234 * @discovery_retries: mesh path discovery retries
1235 * @generation: generation number for nl80211 dumps.
1236 * This number should increase every time the list of mesh paths
1237 * changes, i.e. when a station is added or removed, so that
1238 * userspace can tell whether it got a consistent snapshot.
1246 u32 discovery_timeout;
1247 u8 discovery_retries;
1254 * struct bss_parameters - BSS parameters
1256 * Used to change BSS parameters (mainly for AP mode).
1258 * @use_cts_prot: Whether to use CTS protection
1259 * (0 = no, 1 = yes, -1 = do not change)
1260 * @use_short_preamble: Whether the use of short preambles is allowed
1261 * (0 = no, 1 = yes, -1 = do not change)
1262 * @use_short_slot_time: Whether the use of short slot time is allowed
1263 * (0 = no, 1 = yes, -1 = do not change)
1264 * @basic_rates: basic rates in IEEE 802.11 format
1265 * (or NULL for no change)
1266 * @basic_rates_len: number of basic rates
1267 * @ap_isolate: do not forward packets between connected stations
1268 * @ht_opmode: HT Operation mode
1269 * (u16 = opmode, -1 = do not change)
1270 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1271 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1273 struct bss_parameters {
1275 int use_short_preamble;
1276 int use_short_slot_time;
1277 const u8 *basic_rates;
1281 s8 p2p_ctwindow, p2p_opp_ps;
1285 * struct mesh_config - 802.11s mesh configuration
1287 * These parameters can be changed while the mesh is active.
1289 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1290 * by the Mesh Peering Open message
1291 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1292 * used by the Mesh Peering Open message
1293 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1294 * the mesh peering management to close a mesh peering
1295 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1297 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1298 * be sent to establish a new peer link instance in a mesh
1299 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1300 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1302 * @auto_open_plinks: whether we should automatically open peer links when we
1303 * detect compatible mesh peers
1304 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1305 * synchronize to for 11s default synchronization method
1306 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1307 * that an originator mesh STA can send to a particular path target
1308 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1309 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1310 * a path discovery in milliseconds
1311 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1312 * receiving a PREQ shall consider the forwarding information from the
1313 * root to be valid. (TU = time unit)
1314 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1315 * which a mesh STA can send only one action frame containing a PREQ
1317 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1318 * which a mesh STA can send only one Action frame containing a PERR
1320 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1321 * it takes for an HWMP information element to propagate across the mesh
1322 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1323 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1324 * announcements are transmitted
1325 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1326 * station has access to a broader network beyond the MBSS. (This is
1327 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1328 * only means that the station will announce others it's a mesh gate, but
1329 * not necessarily using the gate announcement protocol. Still keeping the
1330 * same nomenclature to be in sync with the spec)
1331 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1332 * entity (default is TRUE - forwarding entity)
1333 * @rssi_threshold: the threshold for average signal strength of candidate
1334 * station to establish a peer link
1335 * @ht_opmode: mesh HT protection mode
1337 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1338 * receiving a proactive PREQ shall consider the forwarding information to
1339 * the root mesh STA to be valid.
1341 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1342 * PREQs are transmitted.
1343 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1344 * during which a mesh STA can send only one Action frame containing
1345 * a PREQ element for root path confirmation.
1346 * @power_mode: The default mesh power save mode which will be the initial
1347 * setting for new peer links.
1348 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1349 * after transmitting its beacon.
1350 * @plink_timeout: If no tx activity is seen from a STA we've established
1351 * peering with for longer than this time (in seconds), then remove it
1352 * from the STA's list of peers. Default is 30 minutes.
1354 struct mesh_config {
1355 u16 dot11MeshRetryTimeout;
1356 u16 dot11MeshConfirmTimeout;
1357 u16 dot11MeshHoldingTimeout;
1358 u16 dot11MeshMaxPeerLinks;
1359 u8 dot11MeshMaxRetries;
1362 bool auto_open_plinks;
1363 u32 dot11MeshNbrOffsetMaxNeighbor;
1364 u8 dot11MeshHWMPmaxPREQretries;
1365 u32 path_refresh_time;
1366 u16 min_discovery_timeout;
1367 u32 dot11MeshHWMPactivePathTimeout;
1368 u16 dot11MeshHWMPpreqMinInterval;
1369 u16 dot11MeshHWMPperrMinInterval;
1370 u16 dot11MeshHWMPnetDiameterTraversalTime;
1371 u8 dot11MeshHWMPRootMode;
1372 u16 dot11MeshHWMPRannInterval;
1373 bool dot11MeshGateAnnouncementProtocol;
1374 bool dot11MeshForwarding;
1377 u32 dot11MeshHWMPactivePathToRootTimeout;
1378 u16 dot11MeshHWMProotInterval;
1379 u16 dot11MeshHWMPconfirmationInterval;
1380 enum nl80211_mesh_power_mode power_mode;
1381 u16 dot11MeshAwakeWindowDuration;
1386 * struct mesh_setup - 802.11s mesh setup configuration
1387 * @chandef: defines the channel to use
1388 * @mesh_id: the mesh ID
1389 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1390 * @sync_method: which synchronization method to use
1391 * @path_sel_proto: which path selection protocol to use
1392 * @path_metric: which metric to use
1393 * @auth_id: which authentication method this mesh is using
1394 * @ie: vendor information elements (optional)
1395 * @ie_len: length of vendor information elements
1396 * @is_authenticated: this mesh requires authentication
1397 * @is_secure: this mesh uses security
1398 * @user_mpm: userspace handles all MPM functions
1399 * @dtim_period: DTIM period to use
1400 * @beacon_interval: beacon interval to use
1401 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1402 * @basic_rates: basic rates to use when creating the mesh
1403 * @beacon_rate: bitrate to be used for beacons
1405 * These parameters are fixed when the mesh is created.
1408 struct cfg80211_chan_def chandef;
1417 bool is_authenticated;
1421 u16 beacon_interval;
1422 int mcast_rate[NUM_NL80211_BANDS];
1424 struct cfg80211_bitrate_mask beacon_rate;
1428 * struct ocb_setup - 802.11p OCB mode setup configuration
1429 * @chandef: defines the channel to use
1431 * These parameters are fixed when connecting to the network
1434 struct cfg80211_chan_def chandef;
1438 * struct ieee80211_txq_params - TX queue parameters
1439 * @ac: AC identifier
1440 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1441 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1443 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1445 * @aifs: Arbitration interframe space [0..255]
1447 struct ieee80211_txq_params {
1456 * DOC: Scanning and BSS list handling
1458 * The scanning process itself is fairly simple, but cfg80211 offers quite
1459 * a bit of helper functionality. To start a scan, the scan operation will
1460 * be invoked with a scan definition. This scan definition contains the
1461 * channels to scan, and the SSIDs to send probe requests for (including the
1462 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1463 * probe. Additionally, a scan request may contain extra information elements
1464 * that should be added to the probe request. The IEs are guaranteed to be
1465 * well-formed, and will not exceed the maximum length the driver advertised
1466 * in the wiphy structure.
1468 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1469 * it is responsible for maintaining the BSS list; the driver should not
1470 * maintain a list itself. For this notification, various functions exist.
1472 * Since drivers do not maintain a BSS list, there are also a number of
1473 * functions to search for a BSS and obtain information about it from the
1474 * BSS structure cfg80211 maintains. The BSS list is also made available
1479 * struct cfg80211_ssid - SSID description
1481 * @ssid_len: length of the ssid
1483 struct cfg80211_ssid {
1484 u8 ssid[IEEE80211_MAX_SSID_LEN];
1489 * struct cfg80211_scan_info - information about completed scan
1490 * @scan_start_tsf: scan start time in terms of the TSF of the BSS that the
1491 * wireless device that requested the scan is connected to. If this
1492 * information is not available, this field is left zero.
1493 * @tsf_bssid: the BSSID according to which %scan_start_tsf is set.
1494 * @aborted: set to true if the scan was aborted for any reason,
1495 * userspace will be notified of that
1497 struct cfg80211_scan_info {
1499 u8 tsf_bssid[ETH_ALEN] __aligned(2);
1504 * struct cfg80211_scan_request - scan request description
1506 * @ssids: SSIDs to scan for (active scan only)
1507 * @n_ssids: number of SSIDs
1508 * @channels: channels to scan on.
1509 * @n_channels: total number of channels to scan
1510 * @scan_width: channel width for scanning
1511 * @ie: optional information element(s) to add into Probe Request or %NULL
1512 * @ie_len: length of ie in octets
1513 * @duration: how long to listen on each channel, in TUs. If
1514 * %duration_mandatory is not set, this is the maximum dwell time and
1515 * the actual dwell time may be shorter.
1516 * @duration_mandatory: if set, the scan duration must be as specified by the
1518 * @flags: bit field of flags controlling operation
1519 * @rates: bitmap of rates to advertise for each band
1520 * @wiphy: the wiphy this was for
1521 * @scan_start: time (in jiffies) when the scan started
1522 * @wdev: the wireless device to scan for
1523 * @info: (internal) information about completed scan
1524 * @notified: (internal) scan request was notified as done or aborted
1525 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1526 * @mac_addr: MAC address used with randomisation
1527 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1528 * are 0 in the mask should be randomised, bits that are 1 should
1529 * be taken from the @mac_addr
1530 * @bssid: BSSID to scan for (most commonly, the wildcard BSSID)
1532 struct cfg80211_scan_request {
1533 struct cfg80211_ssid *ssids;
1536 enum nl80211_bss_scan_width scan_width;
1540 bool duration_mandatory;
1543 u32 rates[NUM_NL80211_BANDS];
1545 struct wireless_dev *wdev;
1547 u8 mac_addr[ETH_ALEN] __aligned(2);
1548 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1549 u8 bssid[ETH_ALEN] __aligned(2);
1552 struct wiphy *wiphy;
1553 unsigned long scan_start;
1554 struct cfg80211_scan_info info;
1559 struct ieee80211_channel *channels[0];
1562 static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask)
1566 get_random_bytes(buf, ETH_ALEN);
1567 for (i = 0; i < ETH_ALEN; i++) {
1569 buf[i] |= addr[i] & mask[i];
1574 * struct cfg80211_match_set - sets of attributes to match
1576 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
1577 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1579 struct cfg80211_match_set {
1580 struct cfg80211_ssid ssid;
1585 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan
1587 * @interval: interval between scheduled scan iterations. In seconds.
1588 * @iterations: number of scan iterations in this scan plan. Zero means
1590 * The last scan plan will always have this parameter set to zero,
1591 * all other scan plans will have a finite number of iterations.
1593 struct cfg80211_sched_scan_plan {
1599 * struct cfg80211_sched_scan_request - scheduled scan request description
1601 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1602 * @n_ssids: number of SSIDs
1603 * @n_channels: total number of channels to scan
1604 * @scan_width: channel width for scanning
1605 * @ie: optional information element(s) to add into Probe Request or %NULL
1606 * @ie_len: length of ie in octets
1607 * @flags: bit field of flags controlling operation
1608 * @match_sets: sets of parameters to be matched for a scan result
1609 * entry to be considered valid and to be passed to the host
1610 * (others are filtered out).
1611 * If ommited, all results are passed.
1612 * @n_match_sets: number of match sets
1613 * @wiphy: the wiphy this was for
1614 * @dev: the interface
1615 * @scan_start: start time of the scheduled scan
1616 * @channels: channels to scan
1617 * @min_rssi_thold: for drivers only supporting a single threshold, this
1618 * contains the minimum over all matchsets
1619 * @mac_addr: MAC address used with randomisation
1620 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1621 * are 0 in the mask should be randomised, bits that are 1 should
1622 * be taken from the @mac_addr
1623 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest
1624 * index must be executed first.
1625 * @n_scan_plans: number of scan plans, at least 1.
1626 * @rcu_head: RCU callback used to free the struct
1627 * @owner_nlportid: netlink portid of owner (if this should is a request
1628 * owned by a particular socket)
1629 * @delay: delay in seconds to use before starting the first scan
1630 * cycle. The driver may ignore this parameter and start
1631 * immediately (or at any other time), if this feature is not
1634 struct cfg80211_sched_scan_request {
1635 struct cfg80211_ssid *ssids;
1638 enum nl80211_bss_scan_width scan_width;
1642 struct cfg80211_match_set *match_sets;
1646 struct cfg80211_sched_scan_plan *scan_plans;
1649 u8 mac_addr[ETH_ALEN] __aligned(2);
1650 u8 mac_addr_mask[ETH_ALEN] __aligned(2);
1653 struct wiphy *wiphy;
1654 struct net_device *dev;
1655 unsigned long scan_start;
1656 struct rcu_head rcu_head;
1660 struct ieee80211_channel *channels[0];
1664 * enum cfg80211_signal_type - signal type
1666 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1667 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1668 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1670 enum cfg80211_signal_type {
1671 CFG80211_SIGNAL_TYPE_NONE,
1672 CFG80211_SIGNAL_TYPE_MBM,
1673 CFG80211_SIGNAL_TYPE_UNSPEC,
1677 * struct cfg80211_inform_bss - BSS inform data
1678 * @chan: channel the frame was received on
1679 * @scan_width: scan width that was used
1680 * @signal: signal strength value, according to the wiphy's
1682 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was
1683 * received; should match the time when the frame was actually
1684 * received by the device (not just by the host, in case it was
1685 * buffered on the device) and be accurate to about 10ms.
1686 * If the frame isn't buffered, just passing the return value of
1687 * ktime_get_boot_ns() is likely appropriate.
1688 * @parent_tsf: the time at the start of reception of the first octet of the
1689 * timestamp field of the frame. The time is the TSF of the BSS specified
1691 * @parent_bssid: the BSS according to which %parent_tsf is set. This is set to
1692 * the BSS that requested the scan in which the beacon/probe was received.
1694 struct cfg80211_inform_bss {
1695 struct ieee80211_channel *chan;
1696 enum nl80211_bss_scan_width scan_width;
1700 u8 parent_bssid[ETH_ALEN] __aligned(2);
1704 * struct cfg80211_bss_ies - BSS entry IE data
1705 * @tsf: TSF contained in the frame that carried these IEs
1706 * @rcu_head: internal use, for freeing
1707 * @len: length of the IEs
1708 * @from_beacon: these IEs are known to come from a beacon
1711 struct cfg80211_bss_ies {
1713 struct rcu_head rcu_head;
1720 * struct cfg80211_bss - BSS description
1722 * This structure describes a BSS (which may also be a mesh network)
1723 * for use in scan results and similar.
1725 * @channel: channel this BSS is on
1726 * @scan_width: width of the control channel
1727 * @bssid: BSSID of the BSS
1728 * @beacon_interval: the beacon interval as from the frame
1729 * @capability: the capability field in host byte order
1730 * @ies: the information elements (Note that there is no guarantee that these
1731 * are well-formed!); this is a pointer to either the beacon_ies or
1732 * proberesp_ies depending on whether Probe Response frame has been
1733 * received. It is always non-%NULL.
1734 * @beacon_ies: the information elements from the last Beacon frame
1735 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1736 * own the beacon_ies, but they're just pointers to the ones from the
1737 * @hidden_beacon_bss struct)
1738 * @proberesp_ies: the information elements from the last Probe Response frame
1739 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1740 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1741 * that holds the beacon data. @beacon_ies is still valid, of course, and
1742 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1743 * @signal: signal strength value (type depends on the wiphy's signal_type)
1744 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1746 struct cfg80211_bss {
1747 struct ieee80211_channel *channel;
1748 enum nl80211_bss_scan_width scan_width;
1750 const struct cfg80211_bss_ies __rcu *ies;
1751 const struct cfg80211_bss_ies __rcu *beacon_ies;
1752 const struct cfg80211_bss_ies __rcu *proberesp_ies;
1754 struct cfg80211_bss *hidden_beacon_bss;
1758 u16 beacon_interval;
1763 u8 priv[0] __aligned(sizeof(void *));
1767 * ieee80211_bss_get_ie - find IE with given ID
1768 * @bss: the bss to search
1771 * Note that the return value is an RCU-protected pointer, so
1772 * rcu_read_lock() must be held when calling this function.
1773 * Return: %NULL if not found.
1775 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1779 * struct cfg80211_auth_request - Authentication request data
1781 * This structure provides information needed to complete IEEE 802.11
1784 * @bss: The BSS to authenticate with, the callee must obtain a reference
1785 * to it if it needs to keep it.
1786 * @auth_type: Authentication type (algorithm)
1787 * @ie: Extra IEs to add to Authentication frame or %NULL
1788 * @ie_len: Length of ie buffer in octets
1789 * @key_len: length of WEP key for shared key authentication
1790 * @key_idx: index of WEP key for shared key authentication
1791 * @key: WEP key for shared key authentication
1792 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1793 * Authentication transaction sequence number field.
1794 * @sae_data_len: Length of sae_data buffer in octets
1796 struct cfg80211_auth_request {
1797 struct cfg80211_bss *bss;
1800 enum nl80211_auth_type auth_type;
1802 u8 key_len, key_idx;
1804 size_t sae_data_len;
1808 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1810 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1811 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1812 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
1814 enum cfg80211_assoc_req_flags {
1815 ASSOC_REQ_DISABLE_HT = BIT(0),
1816 ASSOC_REQ_DISABLE_VHT = BIT(1),
1817 ASSOC_REQ_USE_RRM = BIT(2),
1821 * struct cfg80211_assoc_request - (Re)Association request data
1823 * This structure provides information needed to complete IEEE 802.11
1825 * @bss: The BSS to associate with. If the call is successful the driver is
1826 * given a reference that it must give back to cfg80211_send_rx_assoc()
1827 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1828 * association requests while already associating must be rejected.
1829 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1830 * @ie_len: Length of ie buffer in octets
1831 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1832 * @crypto: crypto settings
1833 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
1834 * to indicate a request to reassociate within the ESS instead of a request
1835 * do the initial association with the ESS. When included, this is set to
1836 * the BSSID of the current association, i.e., to the value that is
1837 * included in the Current AP address field of the Reassociation Request
1839 * @flags: See &enum cfg80211_assoc_req_flags
1840 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1841 * will be used in ht_capa. Un-supported values will be ignored.
1842 * @ht_capa_mask: The bits of ht_capa which are to be used.
1843 * @vht_capa: VHT capability override
1844 * @vht_capa_mask: VHT capability mask indicating which fields to use
1846 struct cfg80211_assoc_request {
1847 struct cfg80211_bss *bss;
1848 const u8 *ie, *prev_bssid;
1850 struct cfg80211_crypto_settings crypto;
1853 struct ieee80211_ht_cap ht_capa;
1854 struct ieee80211_ht_cap ht_capa_mask;
1855 struct ieee80211_vht_cap vht_capa, vht_capa_mask;
1859 * struct cfg80211_deauth_request - Deauthentication request data
1861 * This structure provides information needed to complete IEEE 802.11
1864 * @bssid: the BSSID of the BSS to deauthenticate from
1865 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1866 * @ie_len: Length of ie buffer in octets
1867 * @reason_code: The reason code for the deauthentication
1868 * @local_state_change: if set, change local state only and
1869 * do not set a deauth frame
1871 struct cfg80211_deauth_request {
1876 bool local_state_change;
1880 * struct cfg80211_disassoc_request - Disassociation request data
1882 * This structure provides information needed to complete IEEE 802.11
1885 * @bss: the BSS to disassociate from
1886 * @ie: Extra IEs to add to Disassociation frame or %NULL
1887 * @ie_len: Length of ie buffer in octets
1888 * @reason_code: The reason code for the disassociation
1889 * @local_state_change: This is a request for a local state only, i.e., no
1890 * Disassociation frame is to be transmitted.
1892 struct cfg80211_disassoc_request {
1893 struct cfg80211_bss *bss;
1897 bool local_state_change;
1901 * struct cfg80211_ibss_params - IBSS parameters
1903 * This structure defines the IBSS parameters for the join_ibss()
1906 * @ssid: The SSID, will always be non-null.
1907 * @ssid_len: The length of the SSID, will always be non-zero.
1908 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1909 * search for IBSSs with a different BSSID.
1910 * @chandef: defines the channel to use if no other IBSS to join can be found
1911 * @channel_fixed: The channel should be fixed -- do not search for
1912 * IBSSs to join on other channels.
1913 * @ie: information element(s) to include in the beacon
1914 * @ie_len: length of that
1915 * @beacon_interval: beacon interval to use
1916 * @privacy: this is a protected network, keys will be configured
1918 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1919 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1920 * required to assume that the port is unauthorized until authorized by
1921 * user space. Otherwise, port is marked authorized by default.
1922 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1923 * changes the channel when a radar is detected. This is required
1924 * to operate on DFS channels.
1925 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1926 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1927 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1928 * will be used in ht_capa. Un-supported values will be ignored.
1929 * @ht_capa_mask: The bits of ht_capa which are to be used.
1931 struct cfg80211_ibss_params {
1934 struct cfg80211_chan_def chandef;
1936 u8 ssid_len, ie_len;
1937 u16 beacon_interval;
1942 bool userspace_handles_dfs;
1943 int mcast_rate[NUM_NL80211_BANDS];
1944 struct ieee80211_ht_cap ht_capa;
1945 struct ieee80211_ht_cap ht_capa_mask;
1949 * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment.
1951 * @band: band of BSS which should match for RSSI level adjustment.
1952 * @delta: value of RSSI level adjustment.
1954 struct cfg80211_bss_select_adjust {
1955 enum nl80211_band band;
1960 * struct cfg80211_bss_selection - connection parameters for BSS selection.
1962 * @behaviour: requested BSS selection behaviour.
1963 * @param: parameters for requestion behaviour.
1964 * @band_pref: preferred band for %NL80211_BSS_SELECT_ATTR_BAND_PREF.
1965 * @adjust: parameters for %NL80211_BSS_SELECT_ATTR_RSSI_ADJUST.
1967 struct cfg80211_bss_selection {
1968 enum nl80211_bss_select_attr behaviour;
1970 enum nl80211_band band_pref;
1971 struct cfg80211_bss_select_adjust adjust;
1976 * struct cfg80211_connect_params - Connection parameters
1978 * This structure provides information needed to complete IEEE 802.11
1979 * authentication and association.
1981 * @channel: The channel to use or %NULL if not specified (auto-select based
1983 * @channel_hint: The channel of the recommended BSS for initial connection or
1984 * %NULL if not specified
1985 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1987 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
1988 * %NULL if not specified. Unlike the @bssid parameter, the driver is
1989 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
1992 * @ssid_len: Length of ssid in octets
1993 * @auth_type: Authentication type (algorithm)
1994 * @ie: IEs for association request
1995 * @ie_len: Length of assoc_ie in octets
1996 * @privacy: indicates whether privacy-enabled APs should be used
1997 * @mfp: indicate whether management frame protection is used
1998 * @crypto: crypto settings
1999 * @key_len: length of WEP key for shared key authentication
2000 * @key_idx: index of WEP key for shared key authentication
2001 * @key: WEP key for shared key authentication
2002 * @flags: See &enum cfg80211_assoc_req_flags
2003 * @bg_scan_period: Background scan period in seconds
2004 * or -1 to indicate that default value is to be used.
2005 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
2006 * will be used in ht_capa. Un-supported values will be ignored.
2007 * @ht_capa_mask: The bits of ht_capa which are to be used.
2008 * @vht_capa: VHT Capability overrides
2009 * @vht_capa_mask: The bits of vht_capa which are to be used.
2010 * @pbss: if set, connect to a PCP instead of AP. Valid for DMG
2012 * @bss_select: criteria to be used for BSS selection.
2013 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used
2014 * to indicate a request to reassociate within the ESS instead of a request
2015 * do the initial association with the ESS. When included, this is set to
2016 * the BSSID of the current association, i.e., to the value that is
2017 * included in the Current AP address field of the Reassociation Request
2020 struct cfg80211_connect_params {
2021 struct ieee80211_channel *channel;
2022 struct ieee80211_channel *channel_hint;
2024 const u8 *bssid_hint;
2027 enum nl80211_auth_type auth_type;
2031 enum nl80211_mfp mfp;
2032 struct cfg80211_crypto_settings crypto;
2034 u8 key_len, key_idx;
2037 struct ieee80211_ht_cap ht_capa;
2038 struct ieee80211_ht_cap ht_capa_mask;
2039 struct ieee80211_vht_cap vht_capa;
2040 struct ieee80211_vht_cap vht_capa_mask;
2042 struct cfg80211_bss_selection bss_select;
2043 const u8 *prev_bssid;
2047 * enum wiphy_params_flags - set_wiphy_params bitfield values
2048 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
2049 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
2050 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
2051 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
2052 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
2053 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
2055 enum wiphy_params_flags {
2056 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
2057 WIPHY_PARAM_RETRY_LONG = 1 << 1,
2058 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
2059 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
2060 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
2061 WIPHY_PARAM_DYN_ACK = 1 << 5,
2065 * struct cfg80211_pmksa - PMK Security Association
2067 * This structure is passed to the set/del_pmksa() method for PMKSA
2070 * @bssid: The AP's BSSID.
2071 * @pmkid: The PMK material itself.
2073 struct cfg80211_pmksa {
2079 * struct cfg80211_pkt_pattern - packet pattern
2080 * @mask: bitmask where to match pattern and where to ignore bytes,
2081 * one bit per byte, in same format as nl80211
2082 * @pattern: bytes to match where bitmask is 1
2083 * @pattern_len: length of pattern (in bytes)
2084 * @pkt_offset: packet offset (in bytes)
2086 * Internal note: @mask and @pattern are allocated in one chunk of
2087 * memory, free @mask only!
2089 struct cfg80211_pkt_pattern {
2090 const u8 *mask, *pattern;
2096 * struct cfg80211_wowlan_tcp - TCP connection parameters
2098 * @sock: (internal) socket for source port allocation
2099 * @src: source IP address
2100 * @dst: destination IP address
2101 * @dst_mac: destination MAC address
2102 * @src_port: source port
2103 * @dst_port: destination port
2104 * @payload_len: data payload length
2105 * @payload: data payload buffer
2106 * @payload_seq: payload sequence stamping configuration
2107 * @data_interval: interval at which to send data packets
2108 * @wake_len: wakeup payload match length
2109 * @wake_data: wakeup payload match data
2110 * @wake_mask: wakeup payload match mask
2111 * @tokens_size: length of the tokens buffer
2112 * @payload_tok: payload token usage configuration
2114 struct cfg80211_wowlan_tcp {
2115 struct socket *sock;
2117 u16 src_port, dst_port;
2118 u8 dst_mac[ETH_ALEN];
2121 struct nl80211_wowlan_tcp_data_seq payload_seq;
2124 const u8 *wake_data, *wake_mask;
2126 /* must be last, variable member */
2127 struct nl80211_wowlan_tcp_data_token payload_tok;
2131 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
2133 * This structure defines the enabled WoWLAN triggers for the device.
2134 * @any: wake up on any activity -- special trigger if device continues
2135 * operating as normal during suspend
2136 * @disconnect: wake up if getting disconnected
2137 * @magic_pkt: wake up on receiving magic packet
2138 * @patterns: wake up on receiving packet matching a pattern
2139 * @n_patterns: number of patterns
2140 * @gtk_rekey_failure: wake up on GTK rekey failure
2141 * @eap_identity_req: wake up on EAP identity request packet
2142 * @four_way_handshake: wake up on 4-way handshake
2143 * @rfkill_release: wake up when rfkill is released
2144 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
2145 * NULL if not configured.
2146 * @nd_config: configuration for the scan to be used for net detect wake.
2148 struct cfg80211_wowlan {
2149 bool any, disconnect, magic_pkt, gtk_rekey_failure,
2150 eap_identity_req, four_way_handshake,
2152 struct cfg80211_pkt_pattern *patterns;
2153 struct cfg80211_wowlan_tcp *tcp;
2155 struct cfg80211_sched_scan_request *nd_config;
2159 * struct cfg80211_coalesce_rules - Coalesce rule parameters
2161 * This structure defines coalesce rule for the device.
2162 * @delay: maximum coalescing delay in msecs.
2163 * @condition: condition for packet coalescence.
2164 * see &enum nl80211_coalesce_condition.
2165 * @patterns: array of packet patterns
2166 * @n_patterns: number of patterns
2168 struct cfg80211_coalesce_rules {
2170 enum nl80211_coalesce_condition condition;
2171 struct cfg80211_pkt_pattern *patterns;
2176 * struct cfg80211_coalesce - Packet coalescing settings
2178 * This structure defines coalescing settings.
2179 * @rules: array of coalesce rules
2180 * @n_rules: number of rules
2182 struct cfg80211_coalesce {
2183 struct cfg80211_coalesce_rules *rules;
2188 * struct cfg80211_wowlan_nd_match - information about the match
2190 * @ssid: SSID of the match that triggered the wake up
2191 * @n_channels: Number of channels where the match occurred. This
2192 * value may be zero if the driver can't report the channels.
2193 * @channels: center frequencies of the channels where a match
2196 struct cfg80211_wowlan_nd_match {
2197 struct cfg80211_ssid ssid;
2203 * struct cfg80211_wowlan_nd_info - net detect wake up information
2205 * @n_matches: Number of match information instances provided in
2206 * @matches. This value may be zero if the driver can't provide
2207 * match information.
2208 * @matches: Array of pointers to matches containing information about
2209 * the matches that triggered the wake up.
2211 struct cfg80211_wowlan_nd_info {
2213 struct cfg80211_wowlan_nd_match *matches[];
2217 * struct cfg80211_wowlan_wakeup - wakeup report
2218 * @disconnect: woke up by getting disconnected
2219 * @magic_pkt: woke up by receiving magic packet
2220 * @gtk_rekey_failure: woke up by GTK rekey failure
2221 * @eap_identity_req: woke up by EAP identity request packet
2222 * @four_way_handshake: woke up by 4-way handshake
2223 * @rfkill_release: woke up by rfkill being released
2224 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
2225 * @packet_present_len: copied wakeup packet data
2226 * @packet_len: original wakeup packet length
2227 * @packet: The packet causing the wakeup, if any.
2228 * @packet_80211: For pattern match, magic packet and other data
2229 * frame triggers an 802.3 frame should be reported, for
2230 * disconnect due to deauth 802.11 frame. This indicates which
2232 * @tcp_match: TCP wakeup packet received
2233 * @tcp_connlost: TCP connection lost or failed to establish
2234 * @tcp_nomoretokens: TCP data ran out of tokens
2235 * @net_detect: if not %NULL, woke up because of net detect
2237 struct cfg80211_wowlan_wakeup {
2238 bool disconnect, magic_pkt, gtk_rekey_failure,
2239 eap_identity_req, four_way_handshake,
2240 rfkill_release, packet_80211,
2241 tcp_match, tcp_connlost, tcp_nomoretokens;
2243 u32 packet_present_len, packet_len;
2245 struct cfg80211_wowlan_nd_info *net_detect;
2249 * struct cfg80211_gtk_rekey_data - rekey data
2250 * @kek: key encryption key (NL80211_KEK_LEN bytes)
2251 * @kck: key confirmation key (NL80211_KCK_LEN bytes)
2252 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
2254 struct cfg80211_gtk_rekey_data {
2255 const u8 *kek, *kck, *replay_ctr;
2259 * struct cfg80211_update_ft_ies_params - FT IE Information
2261 * This structure provides information needed to update the fast transition IE
2263 * @md: The Mobility Domain ID, 2 Octet value
2264 * @ie: Fast Transition IEs
2265 * @ie_len: Length of ft_ie in octets
2267 struct cfg80211_update_ft_ies_params {
2274 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
2276 * This structure provides information needed to transmit a mgmt frame
2278 * @chan: channel to use
2279 * @offchan: indicates wether off channel operation is required
2280 * @wait: duration for ROC
2281 * @buf: buffer to transmit
2282 * @len: buffer length
2283 * @no_cck: don't use cck rates for this frame
2284 * @dont_wait_for_ack: tells the low level not to wait for an ack
2285 * @n_csa_offsets: length of csa_offsets array
2286 * @csa_offsets: array of all the csa offsets in the frame
2288 struct cfg80211_mgmt_tx_params {
2289 struct ieee80211_channel *chan;
2295 bool dont_wait_for_ack;
2297 const u16 *csa_offsets;
2301 * struct cfg80211_dscp_exception - DSCP exception
2303 * @dscp: DSCP value that does not adhere to the user priority range definition
2304 * @up: user priority value to which the corresponding DSCP value belongs
2306 struct cfg80211_dscp_exception {
2312 * struct cfg80211_dscp_range - DSCP range definition for user priority
2314 * @low: lowest DSCP value of this user priority range, inclusive
2315 * @high: highest DSCP value of this user priority range, inclusive
2317 struct cfg80211_dscp_range {
2322 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2323 #define IEEE80211_QOS_MAP_MAX_EX 21
2324 #define IEEE80211_QOS_MAP_LEN_MIN 16
2325 #define IEEE80211_QOS_MAP_LEN_MAX \
2326 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2329 * struct cfg80211_qos_map - QoS Map Information
2331 * This struct defines the Interworking QoS map setting for DSCP values
2333 * @num_des: number of DSCP exceptions (0..21)
2334 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2335 * the user priority DSCP range definition
2336 * @up: DSCP range definition for a particular user priority
2338 struct cfg80211_qos_map {
2340 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX];
2341 struct cfg80211_dscp_range up[8];
2345 * struct cfg80211_nan_conf - NAN configuration
2347 * This struct defines NAN configuration parameters
2349 * @master_pref: master preference (1 - 255)
2350 * @dual: dual band operation mode, see &enum nl80211_nan_dual_band_conf
2352 struct cfg80211_nan_conf {
2358 * enum cfg80211_nan_conf_changes - indicates changed fields in NAN
2361 * @CFG80211_NAN_CONF_CHANGED_PREF: master preference
2362 * @CFG80211_NAN_CONF_CHANGED_DUAL: dual band operation
2364 enum cfg80211_nan_conf_changes {
2365 CFG80211_NAN_CONF_CHANGED_PREF = BIT(0),
2366 CFG80211_NAN_CONF_CHANGED_DUAL = BIT(1),
2370 * struct cfg80211_nan_func_filter - a NAN function Rx / Tx filter
2372 * @filter: the content of the filter
2373 * @len: the length of the filter
2375 struct cfg80211_nan_func_filter {
2381 * struct cfg80211_nan_func - a NAN function
2383 * @type: &enum nl80211_nan_function_type
2384 * @service_id: the service ID of the function
2385 * @publish_type: &nl80211_nan_publish_type
2386 * @close_range: if true, the range should be limited. Threshold is
2387 * implementation specific.
2388 * @publish_bcast: if true, the solicited publish should be broadcasted
2389 * @subscribe_active: if true, the subscribe is active
2390 * @followup_id: the instance ID for follow up
2391 * @followup_reqid: the requestor instance ID for follow up
2392 * @followup_dest: MAC address of the recipient of the follow up
2393 * @ttl: time to live counter in DW.
2394 * @serv_spec_info: Service Specific Info
2395 * @serv_spec_info_len: Service Specific Info length
2396 * @srf_include: if true, SRF is inclusive
2397 * @srf_bf: Bloom Filter
2398 * @srf_bf_len: Bloom Filter length
2399 * @srf_bf_idx: Bloom Filter index
2400 * @srf_macs: SRF MAC addresses
2401 * @srf_num_macs: number of MAC addresses in SRF
2402 * @rx_filters: rx filters that are matched with corresponding peer's tx_filter
2403 * @tx_filters: filters that should be transmitted in the SDF.
2404 * @num_rx_filters: length of &rx_filters.
2405 * @num_tx_filters: length of &tx_filters.
2406 * @instance_id: driver allocated id of the function.
2407 * @cookie: unique NAN function identifier.
2409 struct cfg80211_nan_func {
2410 enum nl80211_nan_function_type type;
2411 u8 service_id[NL80211_NAN_FUNC_SERVICE_ID_LEN];
2415 bool subscribe_active;
2418 struct mac_address followup_dest;
2420 const u8 *serv_spec_info;
2421 u8 serv_spec_info_len;
2426 struct mac_address *srf_macs;
2428 struct cfg80211_nan_func_filter *rx_filters;
2429 struct cfg80211_nan_func_filter *tx_filters;
2437 * struct cfg80211_ops - backend description for wireless configuration
2439 * This struct is registered by fullmac card drivers and/or wireless stacks
2440 * in order to handle configuration requests on their interfaces.
2442 * All callbacks except where otherwise noted should return 0
2443 * on success or a negative error code.
2445 * All operations are currently invoked under rtnl for consistency with the
2446 * wireless extensions but this is subject to reevaluation as soon as this
2447 * code is used more widely and we have a first user without wext.
2449 * @suspend: wiphy device needs to be suspended. The variable @wow will
2450 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2451 * configured for the device.
2452 * @resume: wiphy device needs to be resumed
2453 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2454 * to call device_set_wakeup_enable() to enable/disable wakeup from
2457 * @add_virtual_intf: create a new virtual interface with the given name,
2458 * must set the struct wireless_dev's iftype. Beware: You must create
2459 * the new netdev in the wiphy's network namespace! Returns the struct
2460 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2461 * also set the address member in the wdev.
2463 * @del_virtual_intf: remove the virtual interface
2465 * @change_virtual_intf: change type/configuration of virtual interface,
2466 * keep the struct wireless_dev's iftype updated.
2468 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2469 * when adding a group key.
2471 * @get_key: get information about the key with the given parameters.
2472 * @mac_addr will be %NULL when requesting information for a group
2473 * key. All pointers given to the @callback function need not be valid
2474 * after it returns. This function should return an error if it is
2475 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2477 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2478 * and @key_index, return -ENOENT if the key doesn't exist.
2480 * @set_default_key: set the default key on an interface
2482 * @set_default_mgmt_key: set the default management frame key on an interface
2484 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2486 * @start_ap: Start acting in AP mode defined by the parameters.
2487 * @change_beacon: Change the beacon parameters for an access point mode
2488 * interface. This should reject the call when AP mode wasn't started.
2489 * @stop_ap: Stop being an AP, including stopping beaconing.
2491 * @add_station: Add a new station.
2492 * @del_station: Remove a station
2493 * @change_station: Modify a given station. Note that flags changes are not much
2494 * validated in cfg80211, in particular the auth/assoc/authorized flags
2495 * might come to the driver in invalid combinations -- make sure to check
2496 * them, also against the existing state! Drivers must call
2497 * cfg80211_check_station_change() to validate the information.
2498 * @get_station: get station information for the station identified by @mac
2499 * @dump_station: dump station callback -- resume dump at index @idx
2501 * @add_mpath: add a fixed mesh path
2502 * @del_mpath: delete a given mesh path
2503 * @change_mpath: change a given mesh path
2504 * @get_mpath: get a mesh path for the given parameters
2505 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2506 * @get_mpp: get a mesh proxy path for the given parameters
2507 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
2508 * @join_mesh: join the mesh network with the specified parameters
2509 * (invoked with the wireless_dev mutex held)
2510 * @leave_mesh: leave the current mesh network
2511 * (invoked with the wireless_dev mutex held)
2513 * @get_mesh_config: Get the current mesh configuration
2515 * @update_mesh_config: Update mesh parameters on a running mesh.
2516 * The mask is a bitfield which tells us which parameters to
2517 * set, and which to leave alone.
2519 * @change_bss: Modify parameters for a given BSS.
2521 * @set_txq_params: Set TX queue parameters
2523 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2524 * as it doesn't implement join_mesh and needs to set the channel to
2525 * join the mesh instead.
2527 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2528 * interfaces are active this callback should reject the configuration.
2529 * If no interfaces are active or the device is down, the channel should
2530 * be stored for when a monitor interface becomes active.
2532 * @scan: Request to do a scan. If returning zero, the scan request is given
2533 * the driver, and will be valid until passed to cfg80211_scan_done().
2534 * For scan results, call cfg80211_inform_bss(); you can call this outside
2535 * the scan/scan_done bracket too.
2536 * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall
2537 * indicate the status of the scan through cfg80211_scan_done().
2539 * @auth: Request to authenticate with the specified peer
2540 * (invoked with the wireless_dev mutex held)
2541 * @assoc: Request to (re)associate with the specified peer
2542 * (invoked with the wireless_dev mutex held)
2543 * @deauth: Request to deauthenticate from the specified peer
2544 * (invoked with the wireless_dev mutex held)
2545 * @disassoc: Request to disassociate from the specified peer
2546 * (invoked with the wireless_dev mutex held)
2548 * @connect: Connect to the ESS with the specified parameters. When connected,
2549 * call cfg80211_connect_result()/cfg80211_connect_bss() with status code
2550 * %WLAN_STATUS_SUCCESS. If the connection fails for some reason, call
2551 * cfg80211_connect_result()/cfg80211_connect_bss() with the status code
2552 * from the AP or cfg80211_connect_timeout() if no frame with status code
2554 * The driver is allowed to roam to other BSSes within the ESS when the
2555 * other BSS matches the connect parameters. When such roaming is initiated
2556 * by the driver, the driver is expected to verify that the target matches
2557 * the configured security parameters and to use Reassociation Request
2558 * frame instead of Association Request frame.
2559 * The connect function can also be used to request the driver to perform a
2560 * specific roam when connected to an ESS. In that case, the prev_bssid
2561 * parameter is set to the BSSID of the currently associated BSS as an
2562 * indication of requesting reassociation.
2563 * In both the driver-initiated and new connect() call initiated roaming
2564 * cases, the result of roaming is indicated with a call to
2565 * cfg80211_roamed() or cfg80211_roamed_bss().
2566 * (invoked with the wireless_dev mutex held)
2567 * @disconnect: Disconnect from the BSS/ESS or stop connection attempts if
2568 * connection is in progress. Once done, call cfg80211_disconnected() in
2569 * case connection was already established (invoked with the
2570 * wireless_dev mutex held), otherwise call cfg80211_connect_timeout().
2572 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2573 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2575 * (invoked with the wireless_dev mutex held)
2576 * @leave_ibss: Leave the IBSS.
2577 * (invoked with the wireless_dev mutex held)
2579 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2582 * @set_wiphy_params: Notify that wiphy parameters have changed;
2583 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2584 * have changed. The actual parameter values are available in
2585 * struct wiphy. If returning an error, no value should be changed.
2587 * @set_tx_power: set the transmit power according to the parameters,
2588 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2589 * wdev may be %NULL if power was set for the wiphy, and will
2590 * always be %NULL unless the driver supports per-vif TX power
2591 * (as advertised by the nl80211 feature flag.)
2592 * @get_tx_power: store the current TX power into the dbm variable;
2593 * return 0 if successful
2595 * @set_wds_peer: set the WDS peer for a WDS interface
2597 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2598 * functions to adjust rfkill hw state
2600 * @dump_survey: get site survey information.
2602 * @remain_on_channel: Request the driver to remain awake on the specified
2603 * channel for the specified duration to complete an off-channel
2604 * operation (e.g., public action frame exchange). When the driver is
2605 * ready on the requested channel, it must indicate this with an event
2606 * notification by calling cfg80211_ready_on_channel().
2607 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2608 * This allows the operation to be terminated prior to timeout based on
2609 * the duration value.
2610 * @mgmt_tx: Transmit a management frame.
2611 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2612 * frame on another channel
2614 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2615 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2616 * used by the function, but 0 and 1 must not be touched. Additionally,
2617 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2618 * dump and return to userspace with an error, so be careful. If any data
2619 * was passed in from userspace then the data/len arguments will be present
2620 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2622 * @set_bitrate_mask: set the bitrate mask configuration
2624 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2625 * devices running firmwares capable of generating the (re) association
2626 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2627 * @del_pmksa: Delete a cached PMKID.
2628 * @flush_pmksa: Flush all cached PMKIDs.
2629 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2630 * allows the driver to adjust the dynamic ps timeout value.
2631 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2632 * After configuration, the driver should (soon) send an event indicating
2633 * the current level is above/below the configured threshold; this may
2634 * need some care when the configuration is changed (without first being
2636 * @set_cqm_txe_config: Configure connection quality monitor TX error
2638 * @sched_scan_start: Tell the driver to start a scheduled scan.
2639 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
2640 * call must stop the scheduled scan and be ready for starting a new one
2641 * before it returns, i.e. @sched_scan_start may be called immediately
2642 * after that again and should not fail in that case. The driver should
2643 * not call cfg80211_sched_scan_stopped() for a requested stop (when this
2644 * method returns 0.)
2646 * @mgmt_frame_register: Notify driver that a management frame type was
2647 * registered. The callback is allowed to sleep.
2649 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2650 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2651 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2652 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2654 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2656 * @tdls_mgmt: Transmit a TDLS management frame.
2657 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2659 * @probe_client: probe an associated client, must return a cookie that it
2660 * later passes to cfg80211_probe_status().
2662 * @set_noack_map: Set the NoAck Map for the TIDs.
2664 * @get_channel: Get the current operating channel for the virtual interface.
2665 * For monitor interfaces, it should return %NULL unless there's a single
2666 * current monitoring channel.
2668 * @start_p2p_device: Start the given P2P device.
2669 * @stop_p2p_device: Stop the given P2P device.
2671 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2672 * Parameters include ACL policy, an array of MAC address of stations
2673 * and the number of MAC addresses. If there is already a list in driver
2674 * this new list replaces the existing one. Driver has to clear its ACL
2675 * when number of MAC addresses entries is passed as 0. Drivers which
2676 * advertise the support for MAC based ACL have to implement this callback.
2678 * @start_radar_detection: Start radar detection in the driver.
2680 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2681 * driver. If the SME is in the driver/firmware, this information can be
2682 * used in building Authentication and Reassociation Request frames.
2684 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2685 * for a given duration (milliseconds). The protocol is provided so the
2686 * driver can take the most appropriate actions.
2687 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2688 * reliability. This operation can not fail.
2689 * @set_coalesce: Set coalesce parameters.
2691 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
2692 * responsible for veryfing if the switch is possible. Since this is
2693 * inherently tricky driver may decide to disconnect an interface later
2694 * with cfg80211_stop_iface(). This doesn't mean driver can accept
2695 * everything. It should do it's best to verify requests and reject them
2696 * as soon as possible.
2698 * @set_qos_map: Set QoS mapping information to the driver
2700 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2701 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2702 * changes during the lifetime of the BSS.
2704 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
2705 * with the given parameters; action frame exchange has been handled by
2706 * userspace so this just has to modify the TX path to take the TS into
2708 * If the admitted time is 0 just validate the parameters to make sure
2709 * the session can be created at all; it is valid to just always return
2710 * success for that but that may result in inefficient behaviour (handshake
2711 * with the peer followed by immediate teardown when the addition is later
2713 * @del_tx_ts: remove an existing TX TS
2715 * @join_ocb: join the OCB network with the specified parameters
2716 * (invoked with the wireless_dev mutex held)
2717 * @leave_ocb: leave the current OCB network
2718 * (invoked with the wireless_dev mutex held)
2720 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
2721 * is responsible for continually initiating channel-switching operations
2722 * and returning to the base channel for communication with the AP.
2723 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
2724 * peers must be on the base channel when the call completes.
2725 * @start_nan: Start the NAN interface.
2726 * @stop_nan: Stop the NAN interface.
2727 * @add_nan_func: Add a NAN function. Returns negative value on failure.
2728 * On success @nan_func ownership is transferred to the driver and
2729 * it may access it outside of the scope of this function. The driver
2730 * should free the @nan_func when no longer needed by calling
2731 * cfg80211_free_nan_func().
2732 * On success the driver should assign an instance_id in the
2733 * provided @nan_func.
2734 * @del_nan_func: Delete a NAN function.
2735 * @nan_change_conf: changes NAN configuration. The changed parameters must
2736 * be specified in @changes (using &enum cfg80211_nan_conf_changes);
2737 * All other parameters must be ignored.
2739 struct cfg80211_ops {
2740 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
2741 int (*resume)(struct wiphy *wiphy);
2742 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
2744 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
2746 unsigned char name_assign_type,
2747 enum nl80211_iftype type,
2749 struct vif_params *params);
2750 int (*del_virtual_intf)(struct wiphy *wiphy,
2751 struct wireless_dev *wdev);
2752 int (*change_virtual_intf)(struct wiphy *wiphy,
2753 struct net_device *dev,
2754 enum nl80211_iftype type, u32 *flags,
2755 struct vif_params *params);
2757 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
2758 u8 key_index, bool pairwise, const u8 *mac_addr,
2759 struct key_params *params);
2760 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
2761 u8 key_index, bool pairwise, const u8 *mac_addr,
2763 void (*callback)(void *cookie, struct key_params*));
2764 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
2765 u8 key_index, bool pairwise, const u8 *mac_addr);
2766 int (*set_default_key)(struct wiphy *wiphy,
2767 struct net_device *netdev,
2768 u8 key_index, bool unicast, bool multicast);
2769 int (*set_default_mgmt_key)(struct wiphy *wiphy,
2770 struct net_device *netdev,
2773 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
2774 struct cfg80211_ap_settings *settings);
2775 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
2776 struct cfg80211_beacon_data *info);
2777 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
2780 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
2782 struct station_parameters *params);
2783 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
2784 struct station_del_parameters *params);
2785 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
2787 struct station_parameters *params);
2788 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
2789 const u8 *mac, struct station_info *sinfo);
2790 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
2791 int idx, u8 *mac, struct station_info *sinfo);
2793 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
2794 const u8 *dst, const u8 *next_hop);
2795 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
2797 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
2798 const u8 *dst, const u8 *next_hop);
2799 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
2800 u8 *dst, u8 *next_hop, struct mpath_info *pinfo);
2801 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
2802 int idx, u8 *dst, u8 *next_hop,
2803 struct mpath_info *pinfo);
2804 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev,
2805 u8 *dst, u8 *mpp, struct mpath_info *pinfo);
2806 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev,
2807 int idx, u8 *dst, u8 *mpp,
2808 struct mpath_info *pinfo);
2809 int (*get_mesh_config)(struct wiphy *wiphy,
2810 struct net_device *dev,
2811 struct mesh_config *conf);
2812 int (*update_mesh_config)(struct wiphy *wiphy,
2813 struct net_device *dev, u32 mask,
2814 const struct mesh_config *nconf);
2815 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
2816 const struct mesh_config *conf,
2817 const struct mesh_setup *setup);
2818 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
2820 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev,
2821 struct ocb_setup *setup);
2822 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev);
2824 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
2825 struct bss_parameters *params);
2827 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
2828 struct ieee80211_txq_params *params);
2830 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
2831 struct net_device *dev,
2832 struct ieee80211_channel *chan);
2834 int (*set_monitor_channel)(struct wiphy *wiphy,
2835 struct cfg80211_chan_def *chandef);
2837 int (*scan)(struct wiphy *wiphy,
2838 struct cfg80211_scan_request *request);
2839 void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev);
2841 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
2842 struct cfg80211_auth_request *req);
2843 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
2844 struct cfg80211_assoc_request *req);
2845 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
2846 struct cfg80211_deauth_request *req);
2847 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
2848 struct cfg80211_disassoc_request *req);
2850 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
2851 struct cfg80211_connect_params *sme);
2852 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
2855 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
2856 struct cfg80211_ibss_params *params);
2857 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
2859 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
2860 int rate[NUM_NL80211_BANDS]);
2862 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
2864 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
2865 enum nl80211_tx_power_setting type, int mbm);
2866 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
2869 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
2872 void (*rfkill_poll)(struct wiphy *wiphy);
2874 #ifdef CONFIG_NL80211_TESTMODE
2875 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev,
2876 void *data, int len);
2877 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
2878 struct netlink_callback *cb,
2879 void *data, int len);
2882 int (*set_bitrate_mask)(struct wiphy *wiphy,
2883 struct net_device *dev,
2885 const struct cfg80211_bitrate_mask *mask);
2887 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
2888 int idx, struct survey_info *info);
2890 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
2891 struct cfg80211_pmksa *pmksa);
2892 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
2893 struct cfg80211_pmksa *pmksa);
2894 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
2896 int (*remain_on_channel)(struct wiphy *wiphy,
2897 struct wireless_dev *wdev,
2898 struct ieee80211_channel *chan,
2899 unsigned int duration,
2901 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
2902 struct wireless_dev *wdev,
2905 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
2906 struct cfg80211_mgmt_tx_params *params,
2908 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
2909 struct wireless_dev *wdev,
2912 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
2913 bool enabled, int timeout);
2915 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
2916 struct net_device *dev,
2917 s32 rssi_thold, u32 rssi_hyst);
2919 int (*set_cqm_txe_config)(struct wiphy *wiphy,
2920 struct net_device *dev,
2921 u32 rate, u32 pkts, u32 intvl);
2923 void (*mgmt_frame_register)(struct wiphy *wiphy,
2924 struct wireless_dev *wdev,
2925 u16 frame_type, bool reg);
2927 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
2928 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
2930 int (*sched_scan_start)(struct wiphy *wiphy,
2931 struct net_device *dev,
2932 struct cfg80211_sched_scan_request *request);
2933 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
2935 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
2936 struct cfg80211_gtk_rekey_data *data);
2938 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
2939 const u8 *peer, u8 action_code, u8 dialog_token,
2940 u16 status_code, u32 peer_capability,
2941 bool initiator, const u8 *buf, size_t len);
2942 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
2943 const u8 *peer, enum nl80211_tdls_operation oper);
2945 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
2946 const u8 *peer, u64 *cookie);
2948 int (*set_noack_map)(struct wiphy *wiphy,
2949 struct net_device *dev,
2952 int (*get_channel)(struct wiphy *wiphy,
2953 struct wireless_dev *wdev,
2954 struct cfg80211_chan_def *chandef);
2956 int (*start_p2p_device)(struct wiphy *wiphy,
2957 struct wireless_dev *wdev);
2958 void (*stop_p2p_device)(struct wiphy *wiphy,
2959 struct wireless_dev *wdev);
2961 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
2962 const struct cfg80211_acl_data *params);
2964 int (*start_radar_detection)(struct wiphy *wiphy,
2965 struct net_device *dev,
2966 struct cfg80211_chan_def *chandef,
2968 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
2969 struct cfg80211_update_ft_ies_params *ftie);
2970 int (*crit_proto_start)(struct wiphy *wiphy,
2971 struct wireless_dev *wdev,
2972 enum nl80211_crit_proto_id protocol,
2974 void (*crit_proto_stop)(struct wiphy *wiphy,
2975 struct wireless_dev *wdev);
2976 int (*set_coalesce)(struct wiphy *wiphy,
2977 struct cfg80211_coalesce *coalesce);
2979 int (*channel_switch)(struct wiphy *wiphy,
2980 struct net_device *dev,
2981 struct cfg80211_csa_settings *params);
2983 int (*set_qos_map)(struct wiphy *wiphy,
2984 struct net_device *dev,
2985 struct cfg80211_qos_map *qos_map);
2987 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
2988 struct cfg80211_chan_def *chandef);
2990 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
2991 u8 tsid, const u8 *peer, u8 user_prio,
2993 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
2994 u8 tsid, const u8 *peer);
2996 int (*tdls_channel_switch)(struct wiphy *wiphy,
2997 struct net_device *dev,
2998 const u8 *addr, u8 oper_class,
2999 struct cfg80211_chan_def *chandef);
3000 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy,
3001 struct net_device *dev,
3003 int (*start_nan)(struct wiphy *wiphy, struct wireless_dev *wdev,
3004 struct cfg80211_nan_conf *conf);
3005 void (*stop_nan)(struct wiphy *wiphy, struct wireless_dev *wdev);
3006 int (*add_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3007 struct cfg80211_nan_func *nan_func);
3008 void (*del_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev,
3010 int (*nan_change_conf)(struct wiphy *wiphy,
3011 struct wireless_dev *wdev,
3012 struct cfg80211_nan_conf *conf,
3017 * wireless hardware and networking interfaces structures
3018 * and registration/helper functions
3022 * enum wiphy_flags - wiphy capability flags
3024 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
3026 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
3027 * by default -- this flag will be set depending on the kernel's default
3028 * on wiphy_new(), but can be changed by the driver if it has a good
3029 * reason to override the default
3030 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
3031 * on a VLAN interface)
3032 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
3033 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
3034 * control port protocol ethertype. The device also honours the
3035 * control_port_no_encrypt flag.
3036 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
3037 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
3038 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
3039 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
3040 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
3042 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
3043 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
3044 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
3045 * link setup/discovery operations internally. Setup, discovery and
3046 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
3047 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
3048 * used for asking the driver/firmware to perform a TDLS operation.
3049 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
3050 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
3051 * when there are virtual interfaces in AP mode by calling
3052 * cfg80211_report_obss_beacon().
3053 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
3054 * responds to probe-requests in hardware.
3055 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
3056 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
3057 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
3058 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
3059 * beaconing mode (AP, IBSS, Mesh, ...).
3060 * @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
3061 * before connection.
3067 WIPHY_FLAG_NETNS_OK = BIT(3),
3068 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
3069 WIPHY_FLAG_4ADDR_AP = BIT(5),
3070 WIPHY_FLAG_4ADDR_STATION = BIT(6),
3071 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
3072 WIPHY_FLAG_IBSS_RSN = BIT(8),
3073 WIPHY_FLAG_MESH_AUTH = BIT(10),
3074 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
3075 /* use hole at 12 */
3076 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
3077 WIPHY_FLAG_AP_UAPSD = BIT(14),
3078 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
3079 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
3080 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
3081 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
3082 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
3083 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
3084 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
3085 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
3086 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
3087 WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
3091 * struct ieee80211_iface_limit - limit on certain interface types
3092 * @max: maximum number of interfaces of these types
3093 * @types: interface types (bits)
3095 struct ieee80211_iface_limit {
3101 * struct ieee80211_iface_combination - possible interface combination
3102 * @limits: limits for the given interface types
3103 * @n_limits: number of limitations
3104 * @num_different_channels: can use up to this many different channels
3105 * @max_interfaces: maximum number of interfaces in total allowed in this
3107 * @beacon_int_infra_match: In this combination, the beacon intervals
3108 * between infrastructure and AP types must match. This is required
3109 * only in special cases.
3110 * @radar_detect_widths: bitmap of channel widths supported for radar detection
3111 * @radar_detect_regions: bitmap of regions supported for radar detection
3112 * @beacon_int_min_gcd: This interface combination supports different
3114 * = 0 - all beacon intervals for different interface must be same.
3115 * > 0 - any beacon interval for the interface part of this combination AND
3116 * *GCD* of all beacon intervals from beaconing interfaces of this
3117 * combination must be greater or equal to this value.
3119 * With this structure the driver can describe which interface
3120 * combinations it supports concurrently.
3124 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
3126 * struct ieee80211_iface_limit limits1[] = {
3127 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3128 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
3130 * struct ieee80211_iface_combination combination1 = {
3131 * .limits = limits1,
3132 * .n_limits = ARRAY_SIZE(limits1),
3133 * .max_interfaces = 2,
3134 * .beacon_int_infra_match = true,
3138 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
3140 * struct ieee80211_iface_limit limits2[] = {
3141 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
3142 * BIT(NL80211_IFTYPE_P2P_GO), },
3144 * struct ieee80211_iface_combination combination2 = {
3145 * .limits = limits2,
3146 * .n_limits = ARRAY_SIZE(limits2),
3147 * .max_interfaces = 8,
3148 * .num_different_channels = 1,
3152 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
3154 * This allows for an infrastructure connection and three P2P connections.
3156 * struct ieee80211_iface_limit limits3[] = {
3157 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
3158 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
3159 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
3161 * struct ieee80211_iface_combination combination3 = {
3162 * .limits = limits3,
3163 * .n_limits = ARRAY_SIZE(limits3),
3164 * .max_interfaces = 4,
3165 * .num_different_channels = 2,
3168 struct ieee80211_iface_combination {
3169 const struct ieee80211_iface_limit *limits;
3170 u32 num_different_channels;
3173 bool beacon_int_infra_match;
3174 u8 radar_detect_widths;
3175 u8 radar_detect_regions;
3176 u32 beacon_int_min_gcd;
3179 struct ieee80211_txrx_stypes {
3184 * enum wiphy_wowlan_support_flags - WoWLAN support flags
3185 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
3186 * trigger that keeps the device operating as-is and
3187 * wakes up the host on any activity, for example a
3188 * received packet that passed filtering; note that the
3189 * packet should be preserved in that case
3190 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
3192 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
3193 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
3194 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
3195 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
3196 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
3197 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
3198 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
3200 enum wiphy_wowlan_support_flags {
3201 WIPHY_WOWLAN_ANY = BIT(0),
3202 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
3203 WIPHY_WOWLAN_DISCONNECT = BIT(2),
3204 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
3205 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
3206 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
3207 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
3208 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
3209 WIPHY_WOWLAN_NET_DETECT = BIT(8),
3212 struct wiphy_wowlan_tcp_support {
3213 const struct nl80211_wowlan_tcp_data_token_feature *tok;
3214 u32 data_payload_max;
3215 u32 data_interval_max;
3216 u32 wake_payload_max;
3221 * struct wiphy_wowlan_support - WoWLAN support data
3222 * @flags: see &enum wiphy_wowlan_support_flags
3223 * @n_patterns: number of supported wakeup patterns
3224 * (see nl80211.h for the pattern definition)
3225 * @pattern_max_len: maximum length of each pattern
3226 * @pattern_min_len: minimum length of each pattern
3227 * @max_pkt_offset: maximum Rx packet offset
3228 * @max_nd_match_sets: maximum number of matchsets for net-detect,
3229 * similar, but not necessarily identical, to max_match_sets for
3231 * See &struct cfg80211_sched_scan_request.@match_sets for more
3233 * @tcp: TCP wakeup support information
3235 struct wiphy_wowlan_support {
3238 int pattern_max_len;
3239 int pattern_min_len;
3241 int max_nd_match_sets;
3242 const struct wiphy_wowlan_tcp_support *tcp;
3246 * struct wiphy_coalesce_support - coalesce support data
3247 * @n_rules: maximum number of coalesce rules
3248 * @max_delay: maximum supported coalescing delay in msecs
3249 * @n_patterns: number of supported patterns in a rule
3250 * (see nl80211.h for the pattern definition)
3251 * @pattern_max_len: maximum length of each pattern
3252 * @pattern_min_len: minimum length of each pattern
3253 * @max_pkt_offset: maximum Rx packet offset
3255 struct wiphy_coalesce_support {
3259 int pattern_max_len;
3260 int pattern_min_len;
3265 * enum wiphy_vendor_command_flags - validation flags for vendor commands
3266 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
3267 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
3268 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
3269 * (must be combined with %_WDEV or %_NETDEV)
3271 enum wiphy_vendor_command_flags {
3272 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0),
3273 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1),
3274 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2),
3278 * struct wiphy_vendor_command - vendor command definition
3279 * @info: vendor command identifying information, as used in nl80211
3280 * @flags: flags, see &enum wiphy_vendor_command_flags
3281 * @doit: callback for the operation, note that wdev is %NULL if the
3282 * flags didn't ask for a wdev and non-%NULL otherwise; the data
3283 * pointer may be %NULL if userspace provided no data at all
3284 * @dumpit: dump callback, for transferring bigger/multiple items. The
3285 * @storage points to cb->args[5], ie. is preserved over the multiple
3287 * It's recommended to not have the same sub command with both @doit and
3288 * @dumpit, so that userspace can assume certain ones are get and others
3289 * are used with dump requests.
3291 struct wiphy_vendor_command {
3292 struct nl80211_vendor_cmd_info info;
3294 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3295 const void *data, int data_len);
3296 int (*dumpit)(struct wiphy *wiphy, struct wireless_dev *wdev,
3297 struct sk_buff *skb, const void *data, int data_len,
3298 unsigned long *storage);
3302 * struct wiphy_iftype_ext_capab - extended capabilities per interface type
3303 * @iftype: interface type
3304 * @extended_capabilities: extended capabilities supported by the driver,
3305 * additional capabilities might be supported by userspace; these are the
3306 * 802.11 extended capabilities ("Extended Capabilities element") and are
3307 * in the same format as in the information element. See IEEE Std
3308 * 802.11-2012 8.4.2.29 for the defined fields.
3309 * @extended_capabilities_mask: mask of the valid values
3310 * @extended_capabilities_len: length of the extended capabilities
3312 struct wiphy_iftype_ext_capab {
3313 enum nl80211_iftype iftype;
3314 const u8 *extended_capabilities;
3315 const u8 *extended_capabilities_mask;
3316 u8 extended_capabilities_len;
3320 * struct wiphy - wireless hardware description
3321 * @reg_notifier: the driver's regulatory notification callback,
3322 * note that if your driver uses wiphy_apply_custom_regulatory()
3323 * the reg_notifier's request can be passed as NULL
3324 * @regd: the driver's regulatory domain, if one was requested via
3325 * the regulatory_hint() API. This can be used by the driver
3326 * on the reg_notifier() if it chooses to ignore future
3327 * regulatory domain changes caused by other drivers.
3328 * @signal_type: signal type reported in &struct cfg80211_bss.
3329 * @cipher_suites: supported cipher suites
3330 * @n_cipher_suites: number of supported cipher suites
3331 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
3332 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
3333 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
3334 * -1 = fragmentation disabled, only odd values >= 256 used
3335 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
3336 * @_net: the network namespace this wiphy currently lives in
3337 * @perm_addr: permanent MAC address of this device
3338 * @addr_mask: If the device supports multiple MAC addresses by masking,
3339 * set this to a mask with variable bits set to 1, e.g. if the last
3340 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
3341 * variable bits shall be determined by the interfaces added, with
3342 * interfaces not matching the mask being rejected to be brought up.
3343 * @n_addresses: number of addresses in @addresses.
3344 * @addresses: If the device has more than one address, set this pointer
3345 * to a list of addresses (6 bytes each). The first one will be used
3346 * by default for perm_addr. In this case, the mask should be set to
3347 * all-zeroes. In this case it is assumed that the device can handle
3348 * the same number of arbitrary MAC addresses.
3349 * @registered: protects ->resume and ->suspend sysfs callbacks against
3350 * unregister hardware
3351 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
3352 * automatically on wiphy renames
3353 * @dev: (virtual) struct device for this wiphy
3354 * @registered: helps synchronize suspend/resume with wiphy unregister
3355 * @wext: wireless extension handlers
3356 * @priv: driver private data (sized according to wiphy_new() parameter)
3357 * @interface_modes: bitmask of interfaces types valid for this wiphy,
3358 * must be set by driver
3359 * @iface_combinations: Valid interface combinations array, should not
3360 * list single interface types.
3361 * @n_iface_combinations: number of entries in @iface_combinations array.
3362 * @software_iftypes: bitmask of software interface types, these are not
3363 * subject to any restrictions since they are purely managed in SW.
3364 * @flags: wiphy flags, see &enum wiphy_flags
3365 * @regulatory_flags: wiphy regulatory flags, see
3366 * &enum ieee80211_regulatory_flags
3367 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
3368 * @ext_features: extended features advertised to nl80211, see
3369 * &enum nl80211_ext_feature_index.
3370 * @bss_priv_size: each BSS struct has private data allocated with it,
3371 * this variable determines its size
3372 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
3374 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
3375 * for in any given scheduled scan
3376 * @max_match_sets: maximum number of match sets the device can handle
3377 * when performing a scheduled scan, 0 if filtering is not
3379 * @max_scan_ie_len: maximum length of user-controlled IEs device can
3380 * add to probe request frames transmitted during a scan, must not
3381 * include fixed IEs like supported rates
3382 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
3384 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number
3385 * of iterations) for scheduled scan supported by the device.
3386 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a
3387 * single scan plan supported by the device.
3388 * @max_sched_scan_plan_iterations: maximum number of iterations for a single
3389 * scan plan supported by the device.
3390 * @coverage_class: current coverage class
3391 * @fw_version: firmware version for ethtool reporting
3392 * @hw_version: hardware version for ethtool reporting
3393 * @max_num_pmkids: maximum number of PMKIDs supported by device
3394 * @privid: a pointer that drivers can use to identify if an arbitrary
3395 * wiphy is theirs, e.g. in global notifiers
3396 * @bands: information about bands/channels supported by this device
3398 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
3399 * transmitted through nl80211, points to an array indexed by interface
3402 * @available_antennas_tx: bitmap of antennas which are available to be
3403 * configured as TX antennas. Antenna configuration commands will be
3404 * rejected unless this or @available_antennas_rx is set.
3406 * @available_antennas_rx: bitmap of antennas which are available to be
3407 * configured as RX antennas. Antenna configuration commands will be
3408 * rejected unless this or @available_antennas_tx is set.
3410 * @probe_resp_offload:
3411 * Bitmap of supported protocols for probe response offloading.
3412 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
3413 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3415 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
3416 * may request, if implemented.
3418 * @wowlan: WoWLAN support information
3419 * @wowlan_config: current WoWLAN configuration; this should usually not be
3420 * used since access to it is necessarily racy, use the parameter passed
3421 * to the suspend() operation instead.
3423 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
3424 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
3425 * If null, then none can be over-ridden.
3426 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
3427 * If null, then none can be over-ridden.
3429 * @wdev_list: the list of associated (virtual) interfaces; this list must
3430 * not be modified by the driver, but can be read with RTNL/RCU protection.
3432 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
3435 * @extended_capabilities: extended capabilities supported by the driver,
3436 * additional capabilities might be supported by userspace; these are
3437 * the 802.11 extended capabilities ("Extended Capabilities element")
3438 * and are in the same format as in the information element. See
3439 * 802.11-2012 8.4.2.29 for the defined fields. These are the default
3440 * extended capabilities to be used if the capabilities are not specified
3441 * for a specific interface type in iftype_ext_capab.
3442 * @extended_capabilities_mask: mask of the valid values
3443 * @extended_capabilities_len: length of the extended capabilities
3444 * @iftype_ext_capab: array of extended capabilities per interface type
3445 * @num_iftype_ext_capab: number of interface types for which extended
3446 * capabilities are specified separately.
3447 * @coalesce: packet coalescing support information
3449 * @vendor_commands: array of vendor commands supported by the hardware
3450 * @n_vendor_commands: number of vendor commands
3451 * @vendor_events: array of vendor events supported by the hardware
3452 * @n_vendor_events: number of vendor events
3454 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
3455 * (including P2P GO) or 0 to indicate no such limit is advertised. The
3456 * driver is allowed to advertise a theoretical limit that it can reach in
3457 * some cases, but may not always reach.
3459 * @max_num_csa_counters: Number of supported csa_counters in beacons
3460 * and probe responses. This value should be set if the driver
3461 * wishes to limit the number of csa counters. Default (0) means
3463 * @max_adj_channel_rssi_comp: max offset of between the channel on which the
3464 * frame was sent and the channel on which the frame was heard for which
3465 * the reported rssi is still valid. If a driver is able to compensate the
3466 * low rssi when a frame is heard on different channel, then it should set
3467 * this variable to the maximal offset for which it can compensate.
3468 * This value should be set in MHz.
3469 * @bss_select_support: bitmask indicating the BSS selection criteria supported
3470 * by the driver in the .connect() callback. The bit position maps to the
3471 * attribute indices defined in &enum nl80211_bss_select_attr.
3473 * @cookie_counter: unique generic cookie counter, used to identify objects.
3476 /* assign these fields before you register the wiphy */
3478 /* permanent MAC address(es) */
3479 u8 perm_addr[ETH_ALEN];
3480 u8 addr_mask[ETH_ALEN];
3482 struct mac_address *addresses;
3484 const struct ieee80211_txrx_stypes *mgmt_stypes;
3486 const struct ieee80211_iface_combination *iface_combinations;
3487 int n_iface_combinations;
3488 u16 software_iftypes;
3492 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
3493 u16 interface_modes;
3495 u16 max_acl_mac_addrs;
3497 u32 flags, regulatory_flags, features;
3498 u8 ext_features[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES, 8)];
3502 enum cfg80211_signal_type signal_type;
3506 u8 max_sched_scan_ssids;
3508 u16 max_scan_ie_len;
3509 u16 max_sched_scan_ie_len;
3510 u32 max_sched_scan_plans;
3511 u32 max_sched_scan_plan_interval;
3512 u32 max_sched_scan_plan_iterations;
3514 int n_cipher_suites;
3515 const u32 *cipher_suites;
3523 char fw_version[ETHTOOL_FWVERS_LEN];
3527 const struct wiphy_wowlan_support *wowlan;
3528 struct cfg80211_wowlan *wowlan_config;
3531 u16 max_remain_on_channel_duration;
3535 u32 available_antennas_tx;
3536 u32 available_antennas_rx;
3539 * Bitmap of supported protocols for probe response offloading
3540 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3541 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3543 u32 probe_resp_offload;
3545 const u8 *extended_capabilities, *extended_capabilities_mask;
3546 u8 extended_capabilities_len;
3548 const struct wiphy_iftype_ext_capab *iftype_ext_capab;
3549 unsigned int num_iftype_ext_capab;
3551 /* If multiple wiphys are registered and you're handed e.g.
3552 * a regular netdev with assigned ieee80211_ptr, you won't
3553 * know whether it points to a wiphy your driver has registered
3554 * or not. Assign this to something global to your driver to
3555 * help determine whether you own this wiphy or not. */
3558 struct ieee80211_supported_band *bands[NUM_NL80211_BANDS];
3560 /* Lets us get back the wiphy on the callback */
3561 void (*reg_notifier)(struct wiphy *wiphy,
3562 struct regulatory_request *request);
3564 /* fields below are read-only, assigned by cfg80211 */
3566 const struct ieee80211_regdomain __rcu *regd;
3568 /* the item in /sys/class/ieee80211/ points to this,
3569 * you need use set_wiphy_dev() (see below) */
3572 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3575 /* dir in debugfs: ieee80211/<wiphyname> */
3576 struct dentry *debugfsdir;
3578 const struct ieee80211_ht_cap *ht_capa_mod_mask;
3579 const struct ieee80211_vht_cap *vht_capa_mod_mask;
3581 struct list_head wdev_list;
3583 /* the network namespace this phy lives in currently */
3584 possible_net_t _net;
3586 #ifdef CONFIG_CFG80211_WEXT
3587 const struct iw_handler_def *wext;
3590 const struct wiphy_coalesce_support *coalesce;
3592 const struct wiphy_vendor_command *vendor_commands;
3593 const struct nl80211_vendor_cmd_info *vendor_events;
3594 int n_vendor_commands, n_vendor_events;
3596 u16 max_ap_assoc_sta;
3598 u8 max_num_csa_counters;
3599 u8 max_adj_channel_rssi_comp;
3601 u32 bss_select_support;
3605 char priv[0] __aligned(NETDEV_ALIGN);
3608 static inline struct net *wiphy_net(struct wiphy *wiphy)
3610 return read_pnet(&wiphy->_net);
3613 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
3615 write_pnet(&wiphy->_net, net);
3619 * wiphy_priv - return priv from wiphy
3621 * @wiphy: the wiphy whose priv pointer to return
3622 * Return: The priv of @wiphy.
3624 static inline void *wiphy_priv(struct wiphy *wiphy)
3627 return &wiphy->priv;
3631 * priv_to_wiphy - return the wiphy containing the priv
3633 * @priv: a pointer previously returned by wiphy_priv
3634 * Return: The wiphy of @priv.
3636 static inline struct wiphy *priv_to_wiphy(void *priv)
3639 return container_of(priv, struct wiphy, priv);
3643 * set_wiphy_dev - set device pointer for wiphy
3645 * @wiphy: The wiphy whose device to bind
3646 * @dev: The device to parent it to
3648 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
3650 wiphy->dev.parent = dev;
3654 * wiphy_dev - get wiphy dev pointer
3656 * @wiphy: The wiphy whose device struct to look up
3657 * Return: The dev of @wiphy.
3659 static inline struct device *wiphy_dev(struct wiphy *wiphy)
3661 return wiphy->dev.parent;
3665 * wiphy_name - get wiphy name
3667 * @wiphy: The wiphy whose name to return
3668 * Return: The name of @wiphy.
3670 static inline const char *wiphy_name(const struct wiphy *wiphy)
3672 return dev_name(&wiphy->dev);
3676 * wiphy_new_nm - create a new wiphy for use with cfg80211
3678 * @ops: The configuration operations for this device
3679 * @sizeof_priv: The size of the private area to allocate
3680 * @requested_name: Request a particular name.
3681 * NULL is valid value, and means use the default phy%d naming.
3683 * Create a new wiphy and associate the given operations with it.
3684 * @sizeof_priv bytes are allocated for private use.
3686 * Return: A pointer to the new wiphy. This pointer must be
3687 * assigned to each netdev's ieee80211_ptr for proper operation.
3689 struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
3690 const char *requested_name);
3693 * wiphy_new - create a new wiphy for use with cfg80211
3695 * @ops: The configuration operations for this device
3696 * @sizeof_priv: The size of the private area to allocate
3698 * Create a new wiphy and associate the given operations with it.
3699 * @sizeof_priv bytes are allocated for private use.
3701 * Return: A pointer to the new wiphy. This pointer must be
3702 * assigned to each netdev's ieee80211_ptr for proper operation.
3704 static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops,
3707 return wiphy_new_nm(ops, sizeof_priv, NULL);
3711 * wiphy_register - register a wiphy with cfg80211
3713 * @wiphy: The wiphy to register.
3715 * Return: A non-negative wiphy index or a negative error code.
3717 int wiphy_register(struct wiphy *wiphy);
3720 * wiphy_unregister - deregister a wiphy from cfg80211
3722 * @wiphy: The wiphy to unregister.
3724 * After this call, no more requests can be made with this priv
3725 * pointer, but the call may sleep to wait for an outstanding
3726 * request that is being handled.
3728 void wiphy_unregister(struct wiphy *wiphy);
3731 * wiphy_free - free wiphy
3733 * @wiphy: The wiphy to free
3735 void wiphy_free(struct wiphy *wiphy);
3737 /* internal structs */
3738 struct cfg80211_conn;
3739 struct cfg80211_internal_bss;
3740 struct cfg80211_cached_keys;
3743 * struct wireless_dev - wireless device state
3745 * For netdevs, this structure must be allocated by the driver
3746 * that uses the ieee80211_ptr field in struct net_device (this
3747 * is intentional so it can be allocated along with the netdev.)
3748 * It need not be registered then as netdev registration will
3749 * be intercepted by cfg80211 to see the new wireless device.
3751 * For non-netdev uses, it must also be allocated by the driver
3752 * in response to the cfg80211 callbacks that require it, as
3753 * there's no netdev registration in that case it may not be
3754 * allocated outside of callback operations that return it.
3756 * @wiphy: pointer to hardware description
3757 * @iftype: interface type
3758 * @list: (private) Used to collect the interfaces
3759 * @netdev: (private) Used to reference back to the netdev, may be %NULL
3760 * @identifier: (private) Identifier used in nl80211 to identify this
3761 * wireless device if it has no netdev
3762 * @current_bss: (private) Used by the internal configuration code
3763 * @chandef: (private) Used by the internal configuration code to track
3764 * the user-set channel definition.
3765 * @preset_chandef: (private) Used by the internal configuration code to
3766 * track the channel to be used for AP later
3767 * @bssid: (private) Used by the internal configuration code
3768 * @ssid: (private) Used by the internal configuration code
3769 * @ssid_len: (private) Used by the internal configuration code
3770 * @mesh_id_len: (private) Used by the internal configuration code
3771 * @mesh_id_up_len: (private) Used by the internal configuration code
3772 * @wext: (private) Used by the internal wireless extensions compat code
3773 * @use_4addr: indicates 4addr mode is used on this interface, must be
3774 * set by driver (if supported) on add_interface BEFORE registering the
3775 * netdev and may otherwise be used by driver read-only, will be update
3776 * by cfg80211 on change_interface
3777 * @mgmt_registrations: list of registrations for management frames
3778 * @mgmt_registrations_lock: lock for the list
3779 * @mtx: mutex used to lock data in this struct, may be used by drivers
3780 * and some API functions require it held
3781 * @beacon_interval: beacon interval used on this device for transmitting
3782 * beacons, 0 when not valid
3783 * @address: The address for this device, valid only if @netdev is %NULL
3784 * @p2p_started: true if this is a P2P Device that has been started
3785 * @nan_started: true if this is a NAN interface that has been started
3786 * @cac_started: true if DFS channel availability check has been started
3787 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
3788 * @cac_time_ms: CAC time in ms
3789 * @ps: powersave mode is enabled
3790 * @ps_timeout: dynamic powersave timeout
3791 * @ap_unexpected_nlportid: (private) netlink port ID of application
3792 * registered for unexpected class 3 frames (AP mode)
3793 * @conn: (private) cfg80211 software SME connection state machine data
3794 * @connect_keys: (private) keys to set after connection is established
3795 * @conn_bss_type: connecting/connected BSS type
3796 * @ibss_fixed: (private) IBSS is using fixed BSSID
3797 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
3798 * @event_list: (private) list for internal event processing
3799 * @event_lock: (private) lock for event list
3800 * @owner_nlportid: (private) owner socket port ID
3802 struct wireless_dev {
3803 struct wiphy *wiphy;
3804 enum nl80211_iftype iftype;
3806 /* the remainder of this struct should be private to cfg80211 */
3807 struct list_head list;
3808 struct net_device *netdev;
3812 struct list_head mgmt_registrations;
3813 spinlock_t mgmt_registrations_lock;
3817 bool use_4addr, p2p_started, nan_started;
3819 u8 address[ETH_ALEN] __aligned(sizeof(u16));
3821 /* currently used for IBSS and SME - might be rearranged later */
3822 u8 ssid[IEEE80211_MAX_SSID_LEN];
3823 u8 ssid_len, mesh_id_len, mesh_id_up_len;
3824 struct cfg80211_conn *conn;
3825 struct cfg80211_cached_keys *connect_keys;
3826 enum ieee80211_bss_type conn_bss_type;
3828 struct list_head event_list;
3829 spinlock_t event_lock;
3831 struct cfg80211_internal_bss *current_bss; /* associated / joined */
3832 struct cfg80211_chan_def preset_chandef;
3833 struct cfg80211_chan_def chandef;
3836 bool ibss_dfs_possible;
3841 int beacon_interval;
3843 u32 ap_unexpected_nlportid;
3846 unsigned long cac_start_time;
3847 unsigned int cac_time_ms;
3851 #ifdef CONFIG_CFG80211_WEXT
3854 struct cfg80211_ibss_params ibss;
3855 struct cfg80211_connect_params connect;
3856 struct cfg80211_cached_keys *keys;
3859 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
3860 u8 ssid[IEEE80211_MAX_SSID_LEN];
3861 s8 default_key, default_mgmt_key;
3862 bool prev_bssid_valid;
3867 static inline u8 *wdev_address(struct wireless_dev *wdev)
3870 return wdev->netdev->dev_addr;
3871 return wdev->address;
3875 * wdev_priv - return wiphy priv from wireless_dev
3877 * @wdev: The wireless device whose wiphy's priv pointer to return
3878 * Return: The wiphy priv of @wdev.
3880 static inline void *wdev_priv(struct wireless_dev *wdev)
3883 return wiphy_priv(wdev->wiphy);
3887 * DOC: Utility functions
3889 * cfg80211 offers a number of utility functions that can be useful.
3893 * ieee80211_channel_to_frequency - convert channel number to frequency
3894 * @chan: channel number
3895 * @band: band, necessary due to channel number overlap
3896 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
3898 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
3901 * ieee80211_frequency_to_channel - convert frequency to channel number
3902 * @freq: center frequency
3903 * Return: The corresponding channel, or 0 if the conversion failed.
3905 int ieee80211_frequency_to_channel(int freq);
3908 * Name indirection necessary because the ieee80211 code also has
3909 * a function named "ieee80211_get_channel", so if you include
3910 * cfg80211's header file you get cfg80211's version, if you try
3911 * to include both header files you'll (rightfully!) get a symbol
3914 struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
3917 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
3918 * @wiphy: the struct wiphy to get the channel for
3919 * @freq: the center frequency of the channel
3920 * Return: The channel struct from @wiphy at @freq.
3922 static inline struct ieee80211_channel *
3923 ieee80211_get_channel(struct wiphy *wiphy, int freq)
3925 return __ieee80211_get_channel(wiphy, freq);
3929 * ieee80211_get_response_rate - get basic rate for a given rate
3931 * @sband: the band to look for rates in
3932 * @basic_rates: bitmap of basic rates
3933 * @bitrate: the bitrate for which to find the basic rate
3935 * Return: The basic rate corresponding to a given bitrate, that
3936 * is the next lower bitrate contained in the basic rate map,
3937 * which is, for this function, given as a bitmap of indices of
3938 * rates in the band's bitrate table.
3940 struct ieee80211_rate *
3941 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
3942 u32 basic_rates, int bitrate);
3945 * ieee80211_mandatory_rates - get mandatory rates for a given band
3946 * @sband: the band to look for rates in
3947 * @scan_width: width of the control channel
3949 * This function returns a bitmap of the mandatory rates for the given
3950 * band, bits are set according to the rate position in the bitrates array.
3952 u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband,
3953 enum nl80211_bss_scan_width scan_width);
3956 * Radiotap parsing functions -- for controlled injection support
3958 * Implemented in net/wireless/radiotap.c
3959 * Documentation in Documentation/networking/radiotap-headers.txt
3962 struct radiotap_align_size {
3963 uint8_t align:4, size:4;
3966 struct ieee80211_radiotap_namespace {
3967 const struct radiotap_align_size *align_size;
3973 struct ieee80211_radiotap_vendor_namespaces {
3974 const struct ieee80211_radiotap_namespace *ns;
3979 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3980 * @this_arg_index: index of current arg, valid after each successful call
3981 * to ieee80211_radiotap_iterator_next()
3982 * @this_arg: pointer to current radiotap arg; it is valid after each
3983 * call to ieee80211_radiotap_iterator_next() but also after
3984 * ieee80211_radiotap_iterator_init() where it will point to
3985 * the beginning of the actual data portion
3986 * @this_arg_size: length of the current arg, for convenience
3987 * @current_namespace: pointer to the current namespace definition
3988 * (or internally %NULL if the current namespace is unknown)
3989 * @is_radiotap_ns: indicates whether the current namespace is the default
3990 * radiotap namespace or not
3992 * @_rtheader: pointer to the radiotap header we are walking through
3993 * @_max_length: length of radiotap header in cpu byte ordering
3994 * @_arg_index: next argument index
3995 * @_arg: next argument pointer
3996 * @_next_bitmap: internal pointer to next present u32
3997 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3998 * @_vns: vendor namespace definitions
3999 * @_next_ns_data: beginning of the next namespace's data
4000 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
4003 * Describes the radiotap parser state. Fields prefixed with an underscore
4004 * must not be used by users of the parser, only by the parser internally.
4007 struct ieee80211_radiotap_iterator {
4008 struct ieee80211_radiotap_header *_rtheader;
4009 const struct ieee80211_radiotap_vendor_namespaces *_vns;
4010 const struct ieee80211_radiotap_namespace *current_namespace;
4012 unsigned char *_arg, *_next_ns_data;
4013 __le32 *_next_bitmap;
4015 unsigned char *this_arg;
4023 uint32_t _bitmap_shifter;
4028 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator,
4029 struct ieee80211_radiotap_header *radiotap_header,
4031 const struct ieee80211_radiotap_vendor_namespaces *vns);
4034 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator);
4037 extern const unsigned char rfc1042_header[6];
4038 extern const unsigned char bridge_tunnel_header[6];
4041 * ieee80211_get_hdrlen_from_skb - get header length from data
4045 * Given an skb with a raw 802.11 header at the data pointer this function
4046 * returns the 802.11 header length.
4048 * Return: The 802.11 header length in bytes (not including encryption
4049 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
4052 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
4055 * ieee80211_hdrlen - get header length in bytes from frame control
4056 * @fc: frame control field in little-endian format
4057 * Return: The header length in bytes.
4059 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
4062 * ieee80211_get_mesh_hdrlen - get mesh extension header length
4063 * @meshhdr: the mesh extension header, only the flags field
4064 * (first byte) will be accessed
4065 * Return: The length of the extension header, which is always at
4066 * least 6 bytes and at most 18 if address 5 and 6 are present.
4068 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
4071 * DOC: Data path helpers
4073 * In addition to generic utilities, cfg80211 also offers
4074 * functions that help implement the data path for devices
4075 * that do not do the 802.11/802.3 conversion on the device.
4079 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
4080 * @skb: the 802.11 data frame
4081 * @addr: the device MAC address
4082 * @iftype: the virtual interface type
4083 * Return: 0 on success. Non-zero on error.
4085 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
4086 enum nl80211_iftype iftype);
4089 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
4090 * @skb: the 802.3 frame
4091 * @addr: the device MAC address
4092 * @iftype: the virtual interface type
4093 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
4094 * @qos: build 802.11 QoS data frame
4095 * Return: 0 on success, or a negative error code.
4097 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
4098 enum nl80211_iftype iftype, const u8 *bssid,
4102 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
4104 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
4105 * 802.3 frames. The @list will be empty if the decode fails. The
4106 * @skb is consumed after the function returns.
4108 * @skb: The input IEEE 802.11n A-MSDU frame.
4109 * @list: The output list of 802.3 frames. It must be allocated and
4110 * initialized by by the caller.
4111 * @addr: The device MAC address.
4112 * @iftype: The device interface type.
4113 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
4114 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
4116 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
4117 const u8 *addr, enum nl80211_iftype iftype,
4118 const unsigned int extra_headroom,
4119 bool has_80211_header);
4122 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
4123 * @skb: the data frame
4124 * @qos_map: Interworking QoS mapping or %NULL if not in use
4125 * Return: The 802.1p/1d tag.
4127 unsigned int cfg80211_classify8021d(struct sk_buff *skb,
4128 struct cfg80211_qos_map *qos_map);
4131 * cfg80211_find_ie_match - match information element and byte array in data
4134 * @ies: data consisting of IEs
4135 * @len: length of data
4136 * @match: byte array to match
4137 * @match_len: number of bytes in the match array
4138 * @match_offset: offset in the IE where the byte array should match.
4139 * If match_len is zero, this must also be set to zero.
4140 * Otherwise this must be set to 2 or more, because the first
4141 * byte is the element id, which is already compared to eid, and
4142 * the second byte is the IE length.
4144 * Return: %NULL if the element ID could not be found or if
4145 * the element is invalid (claims to be longer than the given
4146 * data) or if the byte array doesn't match, or a pointer to the first
4147 * byte of the requested element, that is the byte containing the
4150 * Note: There are no checks on the element length other than
4151 * having to fit into the given data and being large enough for the
4152 * byte array to match.
4154 const u8 *cfg80211_find_ie_match(u8 eid, const u8 *ies, int len,
4155 const u8 *match, int match_len,
4159 * cfg80211_find_ie - find information element in data
4162 * @ies: data consisting of IEs
4163 * @len: length of data
4165 * Return: %NULL if the element ID could not be found or if
4166 * the element is invalid (claims to be longer than the given
4167 * data), or a pointer to the first byte of the requested
4168 * element, that is the byte containing the element ID.
4170 * Note: There are no checks on the element length other than
4171 * having to fit into the given data.
4173 static inline const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
4175 return cfg80211_find_ie_match(eid, ies, len, NULL, 0, 0);
4179 * cfg80211_find_vendor_ie - find vendor specific information element in data
4182 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any
4183 * @ies: data consisting of IEs
4184 * @len: length of data
4186 * Return: %NULL if the vendor specific element ID could not be found or if the
4187 * element is invalid (claims to be longer than the given data), or a pointer to
4188 * the first byte of the requested element, that is the byte containing the
4191 * Note: There are no checks on the element length other than having to fit into
4194 const u8 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type,
4195 const u8 *ies, int len);
4198 * DOC: Regulatory enforcement infrastructure
4204 * regulatory_hint - driver hint to the wireless core a regulatory domain
4205 * @wiphy: the wireless device giving the hint (used only for reporting
4207 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
4208 * should be in. If @rd is set this should be NULL. Note that if you
4209 * set this to NULL you should still set rd->alpha2 to some accepted
4212 * Wireless drivers can use this function to hint to the wireless core
4213 * what it believes should be the current regulatory domain by
4214 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
4215 * domain should be in or by providing a completely build regulatory domain.
4216 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
4217 * for a regulatory domain structure for the respective country.
4219 * The wiphy must have been registered to cfg80211 prior to this call.
4220 * For cfg80211 drivers this means you must first use wiphy_register(),
4221 * for mac80211 drivers you must first use ieee80211_register_hw().
4223 * Drivers should check the return value, its possible you can get
4226 * Return: 0 on success. -ENOMEM.
4228 int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
4231 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
4232 * @wiphy: the wireless device we want to process the regulatory domain on
4233 * @rd: the regulatory domain informatoin to use for this wiphy
4235 * Set the regulatory domain information for self-managed wiphys, only they
4236 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
4239 * Return: 0 on success. -EINVAL, -EPERM
4241 int regulatory_set_wiphy_regd(struct wiphy *wiphy,
4242 struct ieee80211_regdomain *rd);
4245 * regulatory_set_wiphy_regd_sync_rtnl - set regdom for self-managed drivers
4246 * @wiphy: the wireless device we want to process the regulatory domain on
4247 * @rd: the regulatory domain information to use for this wiphy
4249 * This functions requires the RTNL to be held and applies the new regdomain
4250 * synchronously to this wiphy. For more details see
4251 * regulatory_set_wiphy_regd().
4253 * Return: 0 on success. -EINVAL, -EPERM
4255 int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy *wiphy,
4256 struct ieee80211_regdomain *rd);
4259 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
4260 * @wiphy: the wireless device we want to process the regulatory domain on
4261 * @regd: the custom regulatory domain to use for this wiphy
4263 * Drivers can sometimes have custom regulatory domains which do not apply
4264 * to a specific country. Drivers can use this to apply such custom regulatory
4265 * domains. This routine must be called prior to wiphy registration. The
4266 * custom regulatory domain will be trusted completely and as such previous
4267 * default channel settings will be disregarded. If no rule is found for a
4268 * channel on the regulatory domain the channel will be disabled.
4269 * Drivers using this for a wiphy should also set the wiphy flag
4270 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
4271 * that called this helper.
4273 void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
4274 const struct ieee80211_regdomain *regd);
4277 * freq_reg_info - get regulatory information for the given frequency
4278 * @wiphy: the wiphy for which we want to process this rule for
4279 * @center_freq: Frequency in KHz for which we want regulatory information for
4281 * Use this function to get the regulatory rule for a specific frequency on
4282 * a given wireless device. If the device has a specific regulatory domain
4283 * it wants to follow we respect that unless a country IE has been received
4284 * and processed already.
4286 * Return: A valid pointer, or, when an error occurs, for example if no rule
4287 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
4288 * check and PTR_ERR() to obtain the numeric return value. The numeric return
4289 * value will be -ERANGE if we determine the given center_freq does not even
4290 * have a regulatory rule for a frequency range in the center_freq's band.
4291 * See freq_in_rule_band() for our current definition of a band -- this is
4292 * purely subjective and right now it's 802.11 specific.
4294 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
4298 * reg_initiator_name - map regulatory request initiator enum to name
4299 * @initiator: the regulatory request initiator
4301 * You can use this to map the regulatory request initiator enum to a
4302 * proper string representation.
4304 const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
4307 * callbacks for asynchronous cfg80211 methods, notification
4308 * functions and BSS handling helpers
4312 * cfg80211_scan_done - notify that scan finished
4314 * @request: the corresponding scan request
4315 * @info: information about the completed scan
4317 void cfg80211_scan_done(struct cfg80211_scan_request *request,
4318 struct cfg80211_scan_info *info);
4321 * cfg80211_sched_scan_results - notify that new scan results are available
4323 * @wiphy: the wiphy which got scheduled scan results
4325 void cfg80211_sched_scan_results(struct wiphy *wiphy);
4328 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
4330 * @wiphy: the wiphy on which the scheduled scan stopped
4332 * The driver can call this function to inform cfg80211 that the
4333 * scheduled scan had to be stopped, for whatever reason. The driver
4334 * is then called back via the sched_scan_stop operation when done.
4336 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
4339 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped
4341 * @wiphy: the wiphy on which the scheduled scan stopped
4343 * The driver can call this function to inform cfg80211 that the
4344 * scheduled scan had to be stopped, for whatever reason. The driver
4345 * is then called back via the sched_scan_stop operation when done.
4346 * This function should be called with rtnl locked.
4348 void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy);
4351 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame
4352 * @wiphy: the wiphy reporting the BSS
4353 * @data: the BSS metadata
4354 * @mgmt: the management frame (probe response or beacon)
4355 * @len: length of the management frame
4356 * @gfp: context flags
4358 * This informs cfg80211 that BSS information was found and
4359 * the BSS should be updated/added.
4361 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4362 * Or %NULL on error.
4364 struct cfg80211_bss * __must_check
4365 cfg80211_inform_bss_frame_data(struct wiphy *wiphy,
4366 struct cfg80211_inform_bss *data,
4367 struct ieee80211_mgmt *mgmt, size_t len,
4370 static inline struct cfg80211_bss * __must_check
4371 cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
4372 struct ieee80211_channel *rx_channel,
4373 enum nl80211_bss_scan_width scan_width,
4374 struct ieee80211_mgmt *mgmt, size_t len,
4375 s32 signal, gfp_t gfp)
4377 struct cfg80211_inform_bss data = {
4379 .scan_width = scan_width,
4383 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4386 static inline struct cfg80211_bss * __must_check
4387 cfg80211_inform_bss_frame(struct wiphy *wiphy,
4388 struct ieee80211_channel *rx_channel,
4389 struct ieee80211_mgmt *mgmt, size_t len,
4390 s32 signal, gfp_t gfp)
4392 struct cfg80211_inform_bss data = {
4394 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4398 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp);
4402 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
4403 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
4404 * from a beacon or probe response
4405 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
4406 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
4408 enum cfg80211_bss_frame_type {
4409 CFG80211_BSS_FTYPE_UNKNOWN,
4410 CFG80211_BSS_FTYPE_BEACON,
4411 CFG80211_BSS_FTYPE_PRESP,
4415 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS
4417 * @wiphy: the wiphy reporting the BSS
4418 * @data: the BSS metadata
4419 * @ftype: frame type (if known)
4420 * @bssid: the BSSID of the BSS
4421 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
4422 * @capability: the capability field sent by the peer
4423 * @beacon_interval: the beacon interval announced by the peer
4424 * @ie: additional IEs sent by the peer
4425 * @ielen: length of the additional IEs
4426 * @gfp: context flags
4428 * This informs cfg80211 that BSS information was found and
4429 * the BSS should be updated/added.
4431 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4432 * Or %NULL on error.
4434 struct cfg80211_bss * __must_check
4435 cfg80211_inform_bss_data(struct wiphy *wiphy,
4436 struct cfg80211_inform_bss *data,
4437 enum cfg80211_bss_frame_type ftype,
4438 const u8 *bssid, u64 tsf, u16 capability,
4439 u16 beacon_interval, const u8 *ie, size_t ielen,
4442 static inline struct cfg80211_bss * __must_check
4443 cfg80211_inform_bss_width(struct wiphy *wiphy,
4444 struct ieee80211_channel *rx_channel,
4445 enum nl80211_bss_scan_width scan_width,
4446 enum cfg80211_bss_frame_type ftype,
4447 const u8 *bssid, u64 tsf, u16 capability,
4448 u16 beacon_interval, const u8 *ie, size_t ielen,
4449 s32 signal, gfp_t gfp)
4451 struct cfg80211_inform_bss data = {
4453 .scan_width = scan_width,
4457 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4458 capability, beacon_interval, ie, ielen,
4462 static inline struct cfg80211_bss * __must_check
4463 cfg80211_inform_bss(struct wiphy *wiphy,
4464 struct ieee80211_channel *rx_channel,
4465 enum cfg80211_bss_frame_type ftype,
4466 const u8 *bssid, u64 tsf, u16 capability,
4467 u16 beacon_interval, const u8 *ie, size_t ielen,
4468 s32 signal, gfp_t gfp)
4470 struct cfg80211_inform_bss data = {
4472 .scan_width = NL80211_BSS_CHAN_WIDTH_20,
4476 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf,
4477 capability, beacon_interval, ie, ielen,
4481 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
4482 struct ieee80211_channel *channel,
4484 const u8 *ssid, size_t ssid_len,
4485 enum ieee80211_bss_type bss_type,
4486 enum ieee80211_privacy);
4487 static inline struct cfg80211_bss *
4488 cfg80211_get_ibss(struct wiphy *wiphy,
4489 struct ieee80211_channel *channel,
4490 const u8 *ssid, size_t ssid_len)
4492 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
4493 IEEE80211_BSS_TYPE_IBSS,
4494 IEEE80211_PRIVACY_ANY);
4498 * cfg80211_ref_bss - reference BSS struct
4499 * @wiphy: the wiphy this BSS struct belongs to
4500 * @bss: the BSS struct to reference
4502 * Increments the refcount of the given BSS struct.
4504 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4507 * cfg80211_put_bss - unref BSS struct
4508 * @wiphy: the wiphy this BSS struct belongs to
4509 * @bss: the BSS struct
4511 * Decrements the refcount of the given BSS struct.
4513 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4516 * cfg80211_unlink_bss - unlink BSS from internal data structures
4518 * @bss: the bss to remove
4520 * This function removes the given BSS from the internal data structures
4521 * thereby making it no longer show up in scan results etc. Use this
4522 * function when you detect a BSS is gone. Normally BSSes will also time
4523 * out, so it is not necessary to use this function at all.
4525 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
4527 static inline enum nl80211_bss_scan_width
4528 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef)
4530 switch (chandef->width) {
4531 case NL80211_CHAN_WIDTH_5:
4532 return NL80211_BSS_CHAN_WIDTH_5;
4533 case NL80211_CHAN_WIDTH_10:
4534 return NL80211_BSS_CHAN_WIDTH_10;
4536 return NL80211_BSS_CHAN_WIDTH_20;
4541 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
4542 * @dev: network device
4543 * @buf: authentication frame (header + body)
4544 * @len: length of the frame data
4546 * This function is called whenever an authentication, disassociation or
4547 * deauthentication frame has been received and processed in station mode.
4548 * After being asked to authenticate via cfg80211_ops::auth() the driver must
4549 * call either this function or cfg80211_auth_timeout().
4550 * After being asked to associate via cfg80211_ops::assoc() the driver must
4551 * call either this function or cfg80211_auth_timeout().
4552 * While connected, the driver must calls this for received and processed
4553 * disassociation and deauthentication frames. If the frame couldn't be used
4554 * because it was unprotected, the driver must call the function
4555 * cfg80211_rx_unprot_mlme_mgmt() instead.
4557 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4559 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
4562 * cfg80211_auth_timeout - notification of timed out authentication
4563 * @dev: network device
4564 * @addr: The MAC address of the device with which the authentication timed out
4566 * This function may sleep. The caller must hold the corresponding wdev's
4569 void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
4572 * cfg80211_rx_assoc_resp - notification of processed association response
4573 * @dev: network device
4574 * @bss: the BSS that association was requested with, ownership of the pointer
4575 * moves to cfg80211 in this call
4576 * @buf: authentication frame (header + body)
4577 * @len: length of the frame data
4578 * @uapsd_queues: bitmap of queues configured for uapsd. Same format
4579 * as the AC bitmap in the QoS info field
4581 * After being asked to associate via cfg80211_ops::assoc() the driver must
4582 * call either this function or cfg80211_auth_timeout().
4584 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4586 void cfg80211_rx_assoc_resp(struct net_device *dev,
4587 struct cfg80211_bss *bss,
4588 const u8 *buf, size_t len,
4592 * cfg80211_assoc_timeout - notification of timed out association
4593 * @dev: network device
4594 * @bss: The BSS entry with which association timed out.
4596 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4598 void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss);
4601 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
4602 * @dev: network device
4603 * @buf: 802.11 frame (header + body)
4604 * @len: length of the frame data
4606 * This function is called whenever deauthentication has been processed in
4607 * station mode. This includes both received deauthentication frames and
4608 * locally generated ones. This function may sleep. The caller must hold the
4609 * corresponding wdev's mutex.
4611 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
4614 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
4615 * @dev: network device
4616 * @buf: deauthentication frame (header + body)
4617 * @len: length of the frame data
4619 * This function is called whenever a received deauthentication or dissassoc
4620 * frame has been dropped in station mode because of MFP being used but the
4621 * frame was not protected. This function may sleep.
4623 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
4624 const u8 *buf, size_t len);
4627 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
4628 * @dev: network device
4629 * @addr: The source MAC address of the frame
4630 * @key_type: The key type that the received frame used
4631 * @key_id: Key identifier (0..3). Can be -1 if missing.
4632 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
4633 * @gfp: allocation flags
4635 * This function is called whenever the local MAC detects a MIC failure in a
4636 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
4639 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
4640 enum nl80211_key_type key_type, int key_id,
4641 const u8 *tsc, gfp_t gfp);
4644 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
4646 * @dev: network device
4647 * @bssid: the BSSID of the IBSS joined
4648 * @channel: the channel of the IBSS joined
4649 * @gfp: allocation flags
4651 * This function notifies cfg80211 that the device joined an IBSS or
4652 * switched to a different BSSID. Before this function can be called,
4653 * either a beacon has to have been received from the IBSS, or one of
4654 * the cfg80211_inform_bss{,_frame} functions must have been called
4655 * with the locally generated beacon -- this guarantees that there is
4656 * always a scan result for this IBSS. cfg80211 will handle the rest.
4658 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
4659 struct ieee80211_channel *channel, gfp_t gfp);
4662 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
4664 * @dev: network device
4665 * @macaddr: the MAC address of the new candidate
4666 * @ie: information elements advertised by the peer candidate
4667 * @ie_len: lenght of the information elements buffer
4668 * @gfp: allocation flags
4670 * This function notifies cfg80211 that the mesh peer candidate has been
4671 * detected, most likely via a beacon or, less likely, via a probe response.
4672 * cfg80211 then sends a notification to userspace.
4674 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
4675 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
4678 * DOC: RFkill integration
4680 * RFkill integration in cfg80211 is almost invisible to drivers,
4681 * as cfg80211 automatically registers an rfkill instance for each
4682 * wireless device it knows about. Soft kill is also translated
4683 * into disconnecting and turning all interfaces off, drivers are
4684 * expected to turn off the device when all interfaces are down.
4686 * However, devices may have a hard RFkill line, in which case they
4687 * also need to interact with the rfkill subsystem, via cfg80211.
4688 * They can do this with a few helper functions documented here.
4692 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
4694 * @blocked: block status
4696 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
4699 * wiphy_rfkill_start_polling - start polling rfkill
4702 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
4705 * wiphy_rfkill_stop_polling - stop polling rfkill
4708 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
4711 * DOC: Vendor commands
4713 * Occasionally, there are special protocol or firmware features that
4714 * can't be implemented very openly. For this and similar cases, the
4715 * vendor command functionality allows implementing the features with
4716 * (typically closed-source) userspace and firmware, using nl80211 as
4717 * the configuration mechanism.
4719 * A driver supporting vendor commands must register them as an array
4720 * in struct wiphy, with handlers for each one, each command has an
4721 * OUI and sub command ID to identify it.
4723 * Note that this feature should not be (ab)used to implement protocol
4724 * features that could openly be shared across drivers. In particular,
4725 * it must never be required to use vendor commands to implement any
4726 * "normal" functionality that higher-level userspace like connection
4727 * managers etc. need.
4730 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
4731 enum nl80211_commands cmd,
4732 enum nl80211_attrs attr,
4735 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
4736 struct wireless_dev *wdev,
4737 enum nl80211_commands cmd,
4738 enum nl80211_attrs attr,
4739 int vendor_event_idx,
4740 int approxlen, gfp_t gfp);
4742 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp);
4745 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
4747 * @approxlen: an upper bound of the length of the data that will
4748 * be put into the skb
4750 * This function allocates and pre-fills an skb for a reply to
4751 * a vendor command. Since it is intended for a reply, calling
4752 * it outside of a vendor command's doit() operation is invalid.
4754 * The returned skb is pre-filled with some identifying data in
4755 * a way that any data that is put into the skb (with skb_put(),
4756 * nla_put() or similar) will end up being within the
4757 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
4758 * with the skb is adding data for the corresponding userspace tool
4759 * which can then read that data out of the vendor data attribute.
4760 * You must not modify the skb in any other way.
4762 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
4763 * its error code as the result of the doit() operation.
4765 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4767 static inline struct sk_buff *
4768 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
4770 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR,
4771 NL80211_ATTR_VENDOR_DATA, approxlen);
4775 * cfg80211_vendor_cmd_reply - send the reply skb
4776 * @skb: The skb, must have been allocated with
4777 * cfg80211_vendor_cmd_alloc_reply_skb()
4779 * Since calling this function will usually be the last thing
4780 * before returning from the vendor command doit() you should
4781 * return the error code. Note that this function consumes the
4782 * skb regardless of the return value.
4784 * Return: An error code or 0 on success.
4786 int cfg80211_vendor_cmd_reply(struct sk_buff *skb);
4789 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
4791 * @wdev: the wireless device
4792 * @event_idx: index of the vendor event in the wiphy's vendor_events
4793 * @approxlen: an upper bound of the length of the data that will
4794 * be put into the skb
4795 * @gfp: allocation flags
4797 * This function allocates and pre-fills an skb for an event on the
4798 * vendor-specific multicast group.
4800 * If wdev != NULL, both the ifindex and identifier of the specified
4801 * wireless device are added to the event message before the vendor data
4804 * When done filling the skb, call cfg80211_vendor_event() with the
4805 * skb to send the event.
4807 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4809 static inline struct sk_buff *
4810 cfg80211_vendor_event_alloc(struct wiphy *wiphy, struct wireless_dev *wdev,
4811 int approxlen, int event_idx, gfp_t gfp)
4813 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR,
4814 NL80211_ATTR_VENDOR_DATA,
4815 event_idx, approxlen, gfp);
4819 * cfg80211_vendor_event - send the event
4820 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
4821 * @gfp: allocation flags
4823 * This function sends the given @skb, which must have been allocated
4824 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
4826 static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp)
4828 __cfg80211_send_event_skb(skb, gfp);
4831 #ifdef CONFIG_NL80211_TESTMODE
4835 * Test mode is a set of utility functions to allow drivers to
4836 * interact with driver-specific tools to aid, for instance,
4837 * factory programming.
4839 * This chapter describes how drivers interact with it, for more
4840 * information see the nl80211 book's chapter on it.
4844 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
4846 * @approxlen: an upper bound of the length of the data that will
4847 * be put into the skb
4849 * This function allocates and pre-fills an skb for a reply to
4850 * the testmode command. Since it is intended for a reply, calling
4851 * it outside of the @testmode_cmd operation is invalid.
4853 * The returned skb is pre-filled with the wiphy index and set up in
4854 * a way that any data that is put into the skb (with skb_put(),
4855 * nla_put() or similar) will end up being within the
4856 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
4857 * with the skb is adding data for the corresponding userspace tool
4858 * which can then read that data out of the testdata attribute. You
4859 * must not modify the skb in any other way.
4861 * When done, call cfg80211_testmode_reply() with the skb and return
4862 * its error code as the result of the @testmode_cmd operation.
4864 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4866 static inline struct sk_buff *
4867 cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen)
4869 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE,
4870 NL80211_ATTR_TESTDATA, approxlen);
4874 * cfg80211_testmode_reply - send the reply skb
4875 * @skb: The skb, must have been allocated with
4876 * cfg80211_testmode_alloc_reply_skb()
4878 * Since calling this function will usually be the last thing
4879 * before returning from the @testmode_cmd you should return
4880 * the error code. Note that this function consumes the skb
4881 * regardless of the return value.
4883 * Return: An error code or 0 on success.
4885 static inline int cfg80211_testmode_reply(struct sk_buff *skb)
4887 return cfg80211_vendor_cmd_reply(skb);
4891 * cfg80211_testmode_alloc_event_skb - allocate testmode event
4893 * @approxlen: an upper bound of the length of the data that will
4894 * be put into the skb
4895 * @gfp: allocation flags
4897 * This function allocates and pre-fills an skb for an event on the
4898 * testmode multicast group.
4900 * The returned skb is set up in the same way as with
4901 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
4902 * there, you should simply add data to it that will then end up in the
4903 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
4906 * When done filling the skb, call cfg80211_testmode_event() with the
4907 * skb to send the event.
4909 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4911 static inline struct sk_buff *
4912 cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp)
4914 return __cfg80211_alloc_event_skb(wiphy, NULL, NL80211_CMD_TESTMODE,
4915 NL80211_ATTR_TESTDATA, -1,
4920 * cfg80211_testmode_event - send the event
4921 * @skb: The skb, must have been allocated with
4922 * cfg80211_testmode_alloc_event_skb()
4923 * @gfp: allocation flags
4925 * This function sends the given @skb, which must have been allocated
4926 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
4929 static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4931 __cfg80211_send_event_skb(skb, gfp);
4934 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
4935 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
4937 #define CFG80211_TESTMODE_CMD(cmd)
4938 #define CFG80211_TESTMODE_DUMP(cmd)
4942 * cfg80211_connect_bss - notify cfg80211 of connection result
4944 * @dev: network device
4945 * @bssid: the BSSID of the AP
4946 * @bss: entry of bss to which STA got connected to, can be obtained
4947 * through cfg80211_get_bss (may be %NULL)
4948 * @req_ie: association request IEs (maybe be %NULL)
4949 * @req_ie_len: association request IEs length
4950 * @resp_ie: association response IEs (may be %NULL)
4951 * @resp_ie_len: assoc response IEs length
4952 * @status: status code, 0 for successful connection, use
4953 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4954 * the real status code for failures.
4955 * @gfp: allocation flags
4957 * It should be called by the underlying driver whenever connect() has
4958 * succeeded. This is similar to cfg80211_connect_result(), but with the
4959 * option of identifying the exact bss entry for the connection. Only one of
4960 * these functions should be called.
4962 void cfg80211_connect_bss(struct net_device *dev, const u8 *bssid,
4963 struct cfg80211_bss *bss, const u8 *req_ie,
4964 size_t req_ie_len, const u8 *resp_ie,
4965 size_t resp_ie_len, int status, gfp_t gfp);
4968 * cfg80211_connect_result - notify cfg80211 of connection result
4970 * @dev: network device
4971 * @bssid: the BSSID of the AP
4972 * @req_ie: association request IEs (maybe be %NULL)
4973 * @req_ie_len: association request IEs length
4974 * @resp_ie: association response IEs (may be %NULL)
4975 * @resp_ie_len: assoc response IEs length
4976 * @status: status code, 0 for successful connection, use
4977 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4978 * the real status code for failures.
4979 * @gfp: allocation flags
4981 * It should be called by the underlying driver whenever connect() has
4985 cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
4986 const u8 *req_ie, size_t req_ie_len,
4987 const u8 *resp_ie, size_t resp_ie_len,
4988 u16 status, gfp_t gfp)
4990 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, resp_ie,
4991 resp_ie_len, status, gfp);
4995 * cfg80211_connect_timeout - notify cfg80211 of connection timeout
4997 * @dev: network device
4998 * @bssid: the BSSID of the AP
4999 * @req_ie: association request IEs (maybe be %NULL)
5000 * @req_ie_len: association request IEs length
5001 * @gfp: allocation flags
5003 * It should be called by the underlying driver whenever connect() has failed
5004 * in a sequence where no explicit authentication/association rejection was
5005 * received from the AP. This could happen, e.g., due to not being able to send
5006 * out the Authentication or Association Request frame or timing out while
5007 * waiting for the response.
5010 cfg80211_connect_timeout(struct net_device *dev, const u8 *bssid,
5011 const u8 *req_ie, size_t req_ie_len, gfp_t gfp)
5013 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, NULL, 0, -1,
5018 * cfg80211_roamed - notify cfg80211 of roaming
5020 * @dev: network device
5021 * @channel: the channel of the new AP
5022 * @bssid: the BSSID of the new AP
5023 * @req_ie: association request IEs (maybe be %NULL)
5024 * @req_ie_len: association request IEs length
5025 * @resp_ie: association response IEs (may be %NULL)
5026 * @resp_ie_len: assoc response IEs length
5027 * @gfp: allocation flags
5029 * It should be called by the underlying driver whenever it roamed
5030 * from one AP to another while connected.
5032 void cfg80211_roamed(struct net_device *dev,
5033 struct ieee80211_channel *channel,
5035 const u8 *req_ie, size_t req_ie_len,
5036 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
5039 * cfg80211_roamed_bss - notify cfg80211 of roaming
5041 * @dev: network device
5042 * @bss: entry of bss to which STA got roamed
5043 * @req_ie: association request IEs (maybe be %NULL)
5044 * @req_ie_len: association request IEs length
5045 * @resp_ie: association response IEs (may be %NULL)
5046 * @resp_ie_len: assoc response IEs length
5047 * @gfp: allocation flags
5049 * This is just a wrapper to notify cfg80211 of roaming event with driver
5050 * passing bss to avoid a race in timeout of the bss entry. It should be
5051 * called by the underlying driver whenever it roamed from one AP to another
5052 * while connected. Drivers which have roaming implemented in firmware
5053 * may use this function to avoid a race in bss entry timeout where the bss
5054 * entry of the new AP is seen in the driver, but gets timed out by the time
5055 * it is accessed in __cfg80211_roamed() due to delay in scheduling
5056 * rdev->event_work. In case of any failures, the reference is released
5057 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
5058 * it will be released while diconneting from the current bss.
5060 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
5061 const u8 *req_ie, size_t req_ie_len,
5062 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
5065 * cfg80211_disconnected - notify cfg80211 that connection was dropped
5067 * @dev: network device
5068 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
5069 * @ie_len: length of IEs
5070 * @reason: reason code for the disconnection, set it to 0 if unknown
5071 * @locally_generated: disconnection was requested locally
5072 * @gfp: allocation flags
5074 * After it calls this function, the driver should enter an idle state
5075 * and not try to connect to any AP any more.
5077 void cfg80211_disconnected(struct net_device *dev, u16 reason,
5078 const u8 *ie, size_t ie_len,
5079 bool locally_generated, gfp_t gfp);
5082 * cfg80211_ready_on_channel - notification of remain_on_channel start
5083 * @wdev: wireless device
5084 * @cookie: the request cookie
5085 * @chan: The current channel (from remain_on_channel request)
5086 * @duration: Duration in milliseconds that the driver intents to remain on the
5088 * @gfp: allocation flags
5090 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
5091 struct ieee80211_channel *chan,
5092 unsigned int duration, gfp_t gfp);
5095 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
5096 * @wdev: wireless device
5097 * @cookie: the request cookie
5098 * @chan: The current channel (from remain_on_channel request)
5099 * @gfp: allocation flags
5101 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
5102 struct ieee80211_channel *chan,
5107 * cfg80211_new_sta - notify userspace about station
5110 * @mac_addr: the station's address
5111 * @sinfo: the station information
5112 * @gfp: allocation flags
5114 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
5115 struct station_info *sinfo, gfp_t gfp);
5118 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
5120 * @mac_addr: the station's address
5121 * @sinfo: the station information/statistics
5122 * @gfp: allocation flags
5124 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
5125 struct station_info *sinfo, gfp_t gfp);
5128 * cfg80211_del_sta - notify userspace about deletion of a station
5131 * @mac_addr: the station's address
5132 * @gfp: allocation flags
5134 static inline void cfg80211_del_sta(struct net_device *dev,
5135 const u8 *mac_addr, gfp_t gfp)
5137 cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp);
5141 * cfg80211_conn_failed - connection request failed notification
5144 * @mac_addr: the station's address
5145 * @reason: the reason for connection failure
5146 * @gfp: allocation flags
5148 * Whenever a station tries to connect to an AP and if the station
5149 * could not connect to the AP as the AP has rejected the connection
5150 * for some reasons, this function is called.
5152 * The reason for connection failure can be any of the value from
5153 * nl80211_connect_failed_reason enum
5155 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
5156 enum nl80211_connect_failed_reason reason,
5160 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
5161 * @wdev: wireless device receiving the frame
5162 * @freq: Frequency on which the frame was received in MHz
5163 * @sig_dbm: signal strength in mBm, or 0 if unknown
5164 * @buf: Management frame (header + body)
5165 * @len: length of the frame data
5166 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
5168 * This function is called whenever an Action frame is received for a station
5169 * mode interface, but is not processed in kernel.
5171 * Return: %true if a user space application has registered for this frame.
5172 * For action frames, that makes it responsible for rejecting unrecognized
5173 * action frames; %false otherwise, in which case for action frames the
5174 * driver is responsible for rejecting the frame.
5176 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
5177 const u8 *buf, size_t len, u32 flags);
5180 * cfg80211_mgmt_tx_status - notification of TX status for management frame
5181 * @wdev: wireless device receiving the frame
5182 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
5183 * @buf: Management frame (header + body)
5184 * @len: length of the frame data
5185 * @ack: Whether frame was acknowledged
5186 * @gfp: context flags
5188 * This function is called whenever a management frame was requested to be
5189 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
5190 * transmission attempt.
5192 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
5193 const u8 *buf, size_t len, bool ack, gfp_t gfp);
5197 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
5198 * @dev: network device
5199 * @rssi_event: the triggered RSSI event
5200 * @gfp: context flags
5202 * This function is called when a configured connection quality monitoring
5203 * rssi threshold reached event occurs.
5205 void cfg80211_cqm_rssi_notify(struct net_device *dev,
5206 enum nl80211_cqm_rssi_threshold_event rssi_event,
5210 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
5211 * @dev: network device
5212 * @peer: peer's MAC address
5213 * @num_packets: how many packets were lost -- should be a fixed threshold
5214 * but probably no less than maybe 50, or maybe a throughput dependent
5215 * threshold (to account for temporary interference)
5216 * @gfp: context flags
5218 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
5219 const u8 *peer, u32 num_packets, gfp_t gfp);
5222 * cfg80211_cqm_txe_notify - TX error rate event
5223 * @dev: network device
5224 * @peer: peer's MAC address
5225 * @num_packets: how many packets were lost
5226 * @rate: % of packets which failed transmission
5227 * @intvl: interval (in s) over which the TX failure threshold was breached.
5228 * @gfp: context flags
5230 * Notify userspace when configured % TX failures over number of packets in a
5231 * given interval is exceeded.
5233 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
5234 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
5237 * cfg80211_cqm_beacon_loss_notify - beacon loss event
5238 * @dev: network device
5239 * @gfp: context flags
5241 * Notify userspace about beacon loss from the connected AP.
5243 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp);
5246 * cfg80211_radar_event - radar detection event
5248 * @chandef: chandef for the current channel
5249 * @gfp: context flags
5251 * This function is called when a radar is detected on the current chanenl.
5253 void cfg80211_radar_event(struct wiphy *wiphy,
5254 struct cfg80211_chan_def *chandef, gfp_t gfp);
5257 * cfg80211_cac_event - Channel availability check (CAC) event
5258 * @netdev: network device
5259 * @chandef: chandef for the current channel
5260 * @event: type of event
5261 * @gfp: context flags
5263 * This function is called when a Channel availability check (CAC) is finished
5264 * or aborted. This must be called to notify the completion of a CAC process,
5265 * also by full-MAC drivers.
5267 void cfg80211_cac_event(struct net_device *netdev,
5268 const struct cfg80211_chan_def *chandef,
5269 enum nl80211_radar_event event, gfp_t gfp);
5273 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
5274 * @dev: network device
5275 * @bssid: BSSID of AP (to avoid races)
5276 * @replay_ctr: new replay counter
5277 * @gfp: allocation flags
5279 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
5280 const u8 *replay_ctr, gfp_t gfp);
5283 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
5284 * @dev: network device
5285 * @index: candidate index (the smaller the index, the higher the priority)
5286 * @bssid: BSSID of AP
5287 * @preauth: Whether AP advertises support for RSN pre-authentication
5288 * @gfp: allocation flags
5290 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
5291 const u8 *bssid, bool preauth, gfp_t gfp);
5294 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
5295 * @dev: The device the frame matched to
5296 * @addr: the transmitter address
5297 * @gfp: context flags
5299 * This function is used in AP mode (only!) to inform userspace that
5300 * a spurious class 3 frame was received, to be able to deauth the
5302 * Return: %true if the frame was passed to userspace (or this failed
5303 * for a reason other than not having a subscription.)
5305 bool cfg80211_rx_spurious_frame(struct net_device *dev,
5306 const u8 *addr, gfp_t gfp);
5309 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
5310 * @dev: The device the frame matched to
5311 * @addr: the transmitter address
5312 * @gfp: context flags
5314 * This function is used in AP mode (only!) to inform userspace that
5315 * an associated station sent a 4addr frame but that wasn't expected.
5316 * It is allowed and desirable to send this event only once for each
5317 * station to avoid event flooding.
5318 * Return: %true if the frame was passed to userspace (or this failed
5319 * for a reason other than not having a subscription.)
5321 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
5322 const u8 *addr, gfp_t gfp);
5325 * cfg80211_probe_status - notify userspace about probe status
5326 * @dev: the device the probe was sent on
5327 * @addr: the address of the peer
5328 * @cookie: the cookie filled in @probe_client previously
5329 * @acked: indicates whether probe was acked or not
5330 * @gfp: allocation flags
5332 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
5333 u64 cookie, bool acked, gfp_t gfp);
5336 * cfg80211_report_obss_beacon - report beacon from other APs
5337 * @wiphy: The wiphy that received the beacon
5339 * @len: length of the frame
5340 * @freq: frequency the frame was received on
5341 * @sig_dbm: signal strength in mBm, or 0 if unknown
5343 * Use this function to report to userspace when a beacon was
5344 * received. It is not useful to call this when there is no
5345 * netdev that is in AP/GO mode.
5347 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
5348 const u8 *frame, size_t len,
5349 int freq, int sig_dbm);
5352 * cfg80211_reg_can_beacon - check if beaconing is allowed
5354 * @chandef: the channel definition
5355 * @iftype: interface type
5357 * Return: %true if there is no secondary channel or the secondary channel(s)
5358 * can be used for beaconing (i.e. is not a radar channel etc.)
5360 bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
5361 struct cfg80211_chan_def *chandef,
5362 enum nl80211_iftype iftype);
5365 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
5367 * @chandef: the channel definition
5368 * @iftype: interface type
5370 * Return: %true if there is no secondary channel or the secondary channel(s)
5371 * can be used for beaconing (i.e. is not a radar channel etc.). This version
5372 * also checks if IR-relaxation conditions apply, to allow beaconing under
5373 * more permissive conditions.
5375 * Requires the RTNL to be held.
5377 bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
5378 struct cfg80211_chan_def *chandef,
5379 enum nl80211_iftype iftype);
5382 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
5383 * @dev: the device which switched channels
5384 * @chandef: the new channel definition
5386 * Caller must acquire wdev_lock, therefore must only be called from sleepable
5389 void cfg80211_ch_switch_notify(struct net_device *dev,
5390 struct cfg80211_chan_def *chandef);
5393 * cfg80211_ch_switch_started_notify - notify channel switch start
5394 * @dev: the device on which the channel switch started
5395 * @chandef: the future channel definition
5396 * @count: the number of TBTTs until the channel switch happens
5398 * Inform the userspace about the channel switch that has just
5399 * started, so that it can take appropriate actions (eg. starting
5400 * channel switch on other vifs), if necessary.
5402 void cfg80211_ch_switch_started_notify(struct net_device *dev,
5403 struct cfg80211_chan_def *chandef,
5407 * ieee80211_operating_class_to_band - convert operating class to band
5409 * @operating_class: the operating class to convert
5410 * @band: band pointer to fill
5412 * Returns %true if the conversion was successful, %false otherwise.
5414 bool ieee80211_operating_class_to_band(u8 operating_class,
5415 enum nl80211_band *band);
5418 * ieee80211_chandef_to_operating_class - convert chandef to operation class
5420 * @chandef: the chandef to convert
5421 * @op_class: a pointer to the resulting operating class
5423 * Returns %true if the conversion was successful, %false otherwise.
5425 bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
5429 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
5430 * @dev: the device on which the operation is requested
5431 * @peer: the MAC address of the peer device
5432 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
5433 * NL80211_TDLS_TEARDOWN)
5434 * @reason_code: the reason code for teardown request
5435 * @gfp: allocation flags
5437 * This function is used to request userspace to perform TDLS operation that
5438 * requires knowledge of keys, i.e., link setup or teardown when the AP
5439 * connection uses encryption. This is optional mechanism for the driver to use
5440 * if it can automatically determine when a TDLS link could be useful (e.g.,
5441 * based on traffic and signal strength for a peer).
5443 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
5444 enum nl80211_tdls_operation oper,
5445 u16 reason_code, gfp_t gfp);
5448 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
5449 * @rate: given rate_info to calculate bitrate from
5451 * return 0 if MCS index >= 32
5453 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
5456 * cfg80211_unregister_wdev - remove the given wdev
5457 * @wdev: struct wireless_dev to remove
5459 * Call this function only for wdevs that have no netdev assigned,
5460 * e.g. P2P Devices. It removes the device from the list so that
5461 * it can no longer be used. It is necessary to call this function
5462 * even when cfg80211 requests the removal of the interface by
5463 * calling the del_virtual_intf() callback. The function must also
5464 * be called when the driver wishes to unregister the wdev, e.g.
5465 * when the device is unbound from the driver.
5467 * Requires the RTNL to be held.
5469 void cfg80211_unregister_wdev(struct wireless_dev *wdev);
5472 * struct cfg80211_ft_event - FT Information Elements
5474 * @ies_len: length of the FT IE in bytes
5475 * @target_ap: target AP's MAC address
5477 * @ric_ies_len: length of the RIC IE in bytes
5479 struct cfg80211_ft_event_params {
5482 const u8 *target_ap;
5488 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
5489 * @netdev: network device
5490 * @ft_event: IE information
5492 void cfg80211_ft_event(struct net_device *netdev,
5493 struct cfg80211_ft_event_params *ft_event);
5496 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
5497 * @ies: the input IE buffer
5498 * @len: the input length
5499 * @attr: the attribute ID to find
5500 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
5501 * if the function is only called to get the needed buffer size
5502 * @bufsize: size of the output buffer
5504 * The function finds a given P2P attribute in the (vendor) IEs and
5505 * copies its contents to the given buffer.
5507 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
5508 * malformed or the attribute can't be found (respectively), or the
5509 * length of the found attribute (which can be zero).
5511 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
5512 enum ieee80211_p2p_attr_id attr,
5513 u8 *buf, unsigned int bufsize);
5516 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC)
5517 * @ies: the IE buffer
5518 * @ielen: the length of the IE buffer
5519 * @ids: an array with element IDs that are allowed before
5521 * @n_ids: the size of the element ID array
5522 * @after_ric: array IE types that come after the RIC element
5523 * @n_after_ric: size of the @after_ric array
5524 * @offset: offset where to start splitting in the buffer
5526 * This function splits an IE buffer by updating the @offset
5527 * variable to point to the location where the buffer should be
5530 * It assumes that the given IE buffer is well-formed, this
5531 * has to be guaranteed by the caller!
5533 * It also assumes that the IEs in the buffer are ordered
5534 * correctly, if not the result of using this function will not
5535 * be ordered correctly either, i.e. it does no reordering.
5537 * The function returns the offset where the next part of the
5538 * buffer starts, which may be @ielen if the entire (remainder)
5539 * of the buffer should be used.
5541 size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen,
5542 const u8 *ids, int n_ids,
5543 const u8 *after_ric, int n_after_ric,
5547 * ieee80211_ie_split - split an IE buffer according to ordering
5548 * @ies: the IE buffer
5549 * @ielen: the length of the IE buffer
5550 * @ids: an array with element IDs that are allowed before
5552 * @n_ids: the size of the element ID array
5553 * @offset: offset where to start splitting in the buffer
5555 * This function splits an IE buffer by updating the @offset
5556 * variable to point to the location where the buffer should be
5559 * It assumes that the given IE buffer is well-formed, this
5560 * has to be guaranteed by the caller!
5562 * It also assumes that the IEs in the buffer are ordered
5563 * correctly, if not the result of using this function will not
5564 * be ordered correctly either, i.e. it does no reordering.
5566 * The function returns the offset where the next part of the
5567 * buffer starts, which may be @ielen if the entire (remainder)
5568 * of the buffer should be used.
5570 static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
5571 const u8 *ids, int n_ids, size_t offset)
5573 return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset);
5577 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
5578 * @wdev: the wireless device reporting the wakeup
5579 * @wakeup: the wakeup report
5580 * @gfp: allocation flags
5582 * This function reports that the given device woke up. If it
5583 * caused the wakeup, report the reason(s), otherwise you may
5584 * pass %NULL as the @wakeup parameter to advertise that something
5585 * else caused the wakeup.
5587 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
5588 struct cfg80211_wowlan_wakeup *wakeup,
5592 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
5594 * @wdev: the wireless device for which critical protocol is stopped.
5595 * @gfp: allocation flags
5597 * This function can be called by the driver to indicate it has reverted
5598 * operation back to normal. One reason could be that the duration given
5599 * by .crit_proto_start() has expired.
5601 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp);
5604 * ieee80211_get_num_supported_channels - get number of channels device has
5607 * Return: the number of channels supported by the device.
5609 unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy);
5612 * cfg80211_check_combinations - check interface combinations
5615 * @params: the interface combinations parameter
5617 * This function can be called by the driver to check whether a
5618 * combination of interfaces and their types are allowed according to
5619 * the interface combinations.
5621 int cfg80211_check_combinations(struct wiphy *wiphy,
5622 struct iface_combination_params *params);
5625 * cfg80211_iter_combinations - iterate over matching combinations
5628 * @params: the interface combinations parameter
5629 * @iter: function to call for each matching combination
5630 * @data: pointer to pass to iter function
5632 * This function can be called by the driver to check what possible
5633 * combinations it fits in at a given moment, e.g. for channel switching
5636 int cfg80211_iter_combinations(struct wiphy *wiphy,
5637 struct iface_combination_params *params,
5638 void (*iter)(const struct ieee80211_iface_combination *c,
5643 * cfg80211_stop_iface - trigger interface disconnection
5646 * @wdev: wireless device
5647 * @gfp: context flags
5649 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
5652 * Note: This doesn't need any locks and is asynchronous.
5654 void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
5658 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
5659 * @wiphy: the wiphy to shut down
5661 * This function shuts down all interfaces belonging to this wiphy by
5662 * calling dev_close() (and treating non-netdev interfaces as needed).
5663 * It shouldn't really be used unless there are some fatal device errors
5664 * that really can't be recovered in any other way.
5666 * Callers must hold the RTNL and be able to deal with callbacks into
5667 * the driver while the function is running.
5669 void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy);
5672 * wiphy_ext_feature_set - set the extended feature flag
5674 * @wiphy: the wiphy to modify.
5675 * @ftidx: extended feature bit index.
5677 * The extended features are flagged in multiple bytes (see
5678 * &struct wiphy.@ext_features)
5680 static inline void wiphy_ext_feature_set(struct wiphy *wiphy,
5681 enum nl80211_ext_feature_index ftidx)
5685 ft_byte = &wiphy->ext_features[ftidx / 8];
5686 *ft_byte |= BIT(ftidx % 8);
5690 * wiphy_ext_feature_isset - check the extended feature flag
5692 * @wiphy: the wiphy to modify.
5693 * @ftidx: extended feature bit index.
5695 * The extended features are flagged in multiple bytes (see
5696 * &struct wiphy.@ext_features)
5699 wiphy_ext_feature_isset(struct wiphy *wiphy,
5700 enum nl80211_ext_feature_index ftidx)
5704 ft_byte = wiphy->ext_features[ftidx / 8];
5705 return (ft_byte & BIT(ftidx % 8)) != 0;
5709 * cfg80211_free_nan_func - free NAN function
5710 * @f: NAN function that should be freed
5712 * Frees all the NAN function and all it's allocated members.
5714 void cfg80211_free_nan_func(struct cfg80211_nan_func *f);
5717 * struct cfg80211_nan_match_params - NAN match parameters
5718 * @type: the type of the function that triggered a match. If it is
5719 * %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber.
5720 * If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery
5722 * If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up.
5723 * @inst_id: the local instance id
5724 * @peer_inst_id: the instance id of the peer's function
5725 * @addr: the MAC address of the peer
5726 * @info_len: the length of the &info
5727 * @info: the Service Specific Info from the peer (if any)
5728 * @cookie: unique identifier of the corresponding function
5730 struct cfg80211_nan_match_params {
5731 enum nl80211_nan_function_type type;
5741 * cfg80211_nan_match - report a match for a NAN function.
5742 * @wdev: the wireless device reporting the match
5743 * @match: match notification parameters
5744 * @gfp: allocation flags
5746 * This function reports that the a NAN function had a match. This
5747 * can be a subscribe that had a match or a solicited publish that
5748 * was sent. It can also be a follow up that was received.
5750 void cfg80211_nan_match(struct wireless_dev *wdev,
5751 struct cfg80211_nan_match_params *match, gfp_t gfp);
5754 * cfg80211_nan_func_terminated - notify about NAN function termination.
5756 * @wdev: the wireless device reporting the match
5757 * @inst_id: the local instance id
5758 * @reason: termination reason (one of the NL80211_NAN_FUNC_TERM_REASON_*)
5759 * @cookie: unique NAN function identifier
5760 * @gfp: allocation flags
5762 * This function reports that the a NAN function is terminated.
5764 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
5766 enum nl80211_nan_func_term_reason reason,
5767 u64 cookie, gfp_t gfp);
5769 /* ethtool helper */
5770 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info);
5772 /* Logging, debugging and troubleshooting/diagnostic helpers. */
5774 /* wiphy_printk helpers, similar to dev_printk */
5776 #define wiphy_printk(level, wiphy, format, args...) \
5777 dev_printk(level, &(wiphy)->dev, format, ##args)
5778 #define wiphy_emerg(wiphy, format, args...) \
5779 dev_emerg(&(wiphy)->dev, format, ##args)
5780 #define wiphy_alert(wiphy, format, args...) \
5781 dev_alert(&(wiphy)->dev, format, ##args)
5782 #define wiphy_crit(wiphy, format, args...) \
5783 dev_crit(&(wiphy)->dev, format, ##args)
5784 #define wiphy_err(wiphy, format, args...) \
5785 dev_err(&(wiphy)->dev, format, ##args)
5786 #define wiphy_warn(wiphy, format, args...) \
5787 dev_warn(&(wiphy)->dev, format, ##args)
5788 #define wiphy_notice(wiphy, format, args...) \
5789 dev_notice(&(wiphy)->dev, format, ##args)
5790 #define wiphy_info(wiphy, format, args...) \
5791 dev_info(&(wiphy)->dev, format, ##args)
5793 #define wiphy_debug(wiphy, format, args...) \
5794 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
5796 #define wiphy_dbg(wiphy, format, args...) \
5797 dev_dbg(&(wiphy)->dev, format, ##args)
5799 #if defined(VERBOSE_DEBUG)
5800 #define wiphy_vdbg wiphy_dbg
5802 #define wiphy_vdbg(wiphy, format, args...) \
5805 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
5811 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
5812 * of using a WARN/WARN_ON to get the message out, including the
5813 * file/line information and a backtrace.
5815 #define wiphy_WARN(wiphy, format, args...) \
5816 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
5818 #endif /* __NET_CFG80211_H */