1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/bug.h>
17 #include <linux/netlink.h>
18 #include <linux/skbuff.h>
19 #include <linux/nl80211.h>
20 #include <linux/if_ether.h>
21 #include <linux/ieee80211.h>
22 #include <net/regulatory.h>
27 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
28 * userspace and drivers, and offers some utility functionality associated
29 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
30 * by all modern wireless drivers in Linux, so that they offer a consistent
31 * API through nl80211. For backward compatibility, cfg80211 also offers
32 * wireless extensions to userspace, but hides them from drivers completely.
34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
40 * DOC: Device registration
42 * In order for a driver to use cfg80211, it must register the hardware device
43 * with cfg80211. This happens through a number of hardware capability structs
46 * The fundamental structure for each device is the 'wiphy', of which each
47 * instance describes a physical wireless device connected to the system. Each
48 * such wiphy can have zero, one, or many virtual interfaces associated with
49 * it, which need to be identified as such by pointing the network interface's
50 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
51 * the wireless part of the interface, normally this struct is embedded in the
52 * network interface's private data area. Drivers can optionally allow creating
53 * or destroying virtual interfaces on the fly, but without at least one or the
54 * ability to create some the wireless device isn't useful.
56 * Each wiphy structure contains device capability information, and also has
57 * a pointer to the various operations the driver offers. The definitions and
58 * structures here describe these capabilities in detail.
64 * wireless hardware capability structures
68 * enum ieee80211_band - supported frequency bands
70 * The bands are assigned this way because the supported
71 * bitrates differ in these bands.
73 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
74 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
75 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
76 * @IEEE80211_NUM_BANDS: number of defined bands
79 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
80 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
81 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
88 * enum ieee80211_channel_flags - channel flags
90 * Channel flags set by the regulatory control code.
92 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
93 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
95 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
96 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
97 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
99 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
101 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
103 enum ieee80211_channel_flags {
104 IEEE80211_CHAN_DISABLED = 1<<0,
105 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
106 IEEE80211_CHAN_NO_IBSS = 1<<2,
107 IEEE80211_CHAN_RADAR = 1<<3,
108 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
109 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
110 IEEE80211_CHAN_NO_OFDM = 1<<6,
113 #define IEEE80211_CHAN_NO_HT40 \
114 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
117 * struct ieee80211_channel - channel definition
119 * This structure describes a single channel for use
122 * @center_freq: center frequency in MHz
123 * @hw_value: hardware-specific value for the channel
124 * @flags: channel flags from &enum ieee80211_channel_flags.
125 * @orig_flags: channel flags at registration time, used by regulatory
126 * code to support devices with additional restrictions
127 * @band: band this channel belongs to.
128 * @max_antenna_gain: maximum antenna gain in dBi
129 * @max_power: maximum transmission power (in dBm)
130 * @max_reg_power: maximum regulatory transmission power (in dBm)
131 * @beacon_found: helper to regulatory code to indicate when a beacon
132 * has been found on this channel. Use regulatory_hint_found_beacon()
133 * to enable this, this is useful only on 5 GHz band.
134 * @orig_mag: internal use
135 * @orig_mpwr: internal use
137 struct ieee80211_channel {
138 enum ieee80211_band band;
142 int max_antenna_gain;
147 int orig_mag, orig_mpwr;
151 * enum ieee80211_rate_flags - rate flags
153 * Hardware/specification flags for rates. These are structured
154 * in a way that allows using the same bitrate structure for
155 * different bands/PHY modes.
157 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
158 * preamble on this bitrate; only relevant in 2.4GHz band and
160 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
161 * when used with 802.11a (on the 5 GHz band); filled by the
162 * core code when registering the wiphy.
163 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
164 * when used with 802.11b (on the 2.4 GHz band); filled by the
165 * core code when registering the wiphy.
166 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
167 * when used with 802.11g (on the 2.4 GHz band); filled by the
168 * core code when registering the wiphy.
169 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
171 enum ieee80211_rate_flags {
172 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
173 IEEE80211_RATE_MANDATORY_A = 1<<1,
174 IEEE80211_RATE_MANDATORY_B = 1<<2,
175 IEEE80211_RATE_MANDATORY_G = 1<<3,
176 IEEE80211_RATE_ERP_G = 1<<4,
180 * struct ieee80211_rate - bitrate definition
182 * This structure describes a bitrate that an 802.11 PHY can
183 * operate with. The two values @hw_value and @hw_value_short
184 * are only for driver use when pointers to this structure are
187 * @flags: rate-specific flags
188 * @bitrate: bitrate in units of 100 Kbps
189 * @hw_value: driver/hardware value for this rate
190 * @hw_value_short: driver/hardware value for this rate when
191 * short preamble is used
193 struct ieee80211_rate {
196 u16 hw_value, hw_value_short;
200 * struct ieee80211_sta_ht_cap - STA's HT capabilities
202 * This structure describes most essential parameters needed
203 * to describe 802.11n HT capabilities for an STA.
205 * @ht_supported: is HT supported by the STA
206 * @cap: HT capabilities map as described in 802.11n spec
207 * @ampdu_factor: Maximum A-MPDU length factor
208 * @ampdu_density: Minimum A-MPDU spacing
209 * @mcs: Supported MCS rates
211 struct ieee80211_sta_ht_cap {
212 u16 cap; /* use IEEE80211_HT_CAP_ */
216 struct ieee80211_mcs_info mcs;
220 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
222 * This structure describes most essential parameters needed
223 * to describe 802.11ac VHT capabilities for an STA.
225 * @vht_supported: is VHT supported by the STA
226 * @cap: VHT capabilities map as described in 802.11ac spec
227 * @vht_mcs: Supported VHT MCS rates
229 struct ieee80211_sta_vht_cap {
231 u32 cap; /* use IEEE80211_VHT_CAP_ */
232 struct ieee80211_vht_mcs_info vht_mcs;
236 * struct ieee80211_supported_band - frequency band definition
238 * This structure describes a frequency band a wiphy
239 * is able to operate in.
241 * @channels: Array of channels the hardware can operate in
243 * @band: the band this structure represents
244 * @n_channels: Number of channels in @channels
245 * @bitrates: Array of bitrates the hardware can operate with
246 * in this band. Must be sorted to give a valid "supported
247 * rates" IE, i.e. CCK rates first, then OFDM.
248 * @n_bitrates: Number of bitrates in @bitrates
249 * @ht_cap: HT capabilities in this band
250 * @vht_cap: VHT capabilities in this band
252 struct ieee80211_supported_band {
253 struct ieee80211_channel *channels;
254 struct ieee80211_rate *bitrates;
255 enum ieee80211_band band;
258 struct ieee80211_sta_ht_cap ht_cap;
259 struct ieee80211_sta_vht_cap vht_cap;
263 * Wireless hardware/device configuration structures and methods
267 * DOC: Actions and configuration
269 * Each wireless device and each virtual interface offer a set of configuration
270 * operations and other actions that are invoked by userspace. Each of these
271 * actions is described in the operations structure, and the parameters these
272 * operations use are described separately.
274 * Additionally, some operations are asynchronous and expect to get status
275 * information via some functions that drivers need to call.
277 * Scanning and BSS list handling with its associated functionality is described
278 * in a separate chapter.
282 * struct vif_params - describes virtual interface parameters
283 * @use_4addr: use 4-address frames
284 * @macaddr: address to use for this virtual interface. This will only
285 * be used for non-netdevice interfaces. If this parameter is set
286 * to zero address the driver may determine the address as needed.
290 u8 macaddr[ETH_ALEN];
294 * struct key_params - key information
296 * Information about a key
299 * @key_len: length of key material
300 * @cipher: cipher suite selector
301 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
302 * with the get_key() callback, must be in little endian,
303 * length given by @seq_len.
304 * @seq_len: length of @seq.
315 * struct cfg80211_chan_def - channel definition
316 * @chan: the (control) channel
317 * @width: channel width
318 * @center_freq1: center frequency of first segment
319 * @center_freq2: center frequency of second segment
320 * (only with 80+80 MHz)
322 struct cfg80211_chan_def {
323 struct ieee80211_channel *chan;
324 enum nl80211_chan_width width;
330 * cfg80211_get_chandef_type - return old channel type from chandef
331 * @chandef: the channel definition
333 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
334 * chandef, which must have a bandwidth allowing this conversion.
336 static inline enum nl80211_channel_type
337 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
339 switch (chandef->width) {
340 case NL80211_CHAN_WIDTH_20_NOHT:
341 return NL80211_CHAN_NO_HT;
342 case NL80211_CHAN_WIDTH_20:
343 return NL80211_CHAN_HT20;
344 case NL80211_CHAN_WIDTH_40:
345 if (chandef->center_freq1 > chandef->chan->center_freq)
346 return NL80211_CHAN_HT40PLUS;
347 return NL80211_CHAN_HT40MINUS;
350 return NL80211_CHAN_NO_HT;
355 * cfg80211_chandef_create - create channel definition using channel type
356 * @chandef: the channel definition struct to fill
357 * @channel: the control channel
358 * @chantype: the channel type
360 * Given a channel type, create a channel definition.
362 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
363 struct ieee80211_channel *channel,
364 enum nl80211_channel_type chantype);
367 * cfg80211_chandef_identical - check if two channel definitions are identical
368 * @chandef1: first channel definition
369 * @chandef2: second channel definition
371 * Return: %true if the channels defined by the channel definitions are
372 * identical, %false otherwise.
375 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
376 const struct cfg80211_chan_def *chandef2)
378 return (chandef1->chan == chandef2->chan &&
379 chandef1->width == chandef2->width &&
380 chandef1->center_freq1 == chandef2->center_freq1 &&
381 chandef1->center_freq2 == chandef2->center_freq2);
385 * cfg80211_chandef_compatible - check if two channel definitions are compatible
386 * @chandef1: first channel definition
387 * @chandef2: second channel definition
389 * Return: %NULL if the given channel definitions are incompatible,
390 * chandef1 or chandef2 otherwise.
392 const struct cfg80211_chan_def *
393 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
394 const struct cfg80211_chan_def *chandef2);
397 * cfg80211_chandef_valid - check if a channel definition is valid
398 * @chandef: the channel definition to check
399 * Return: %true if the channel definition is valid. %false otherwise.
401 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);
404 * cfg80211_chandef_usable - check if secondary channels can be used
405 * @wiphy: the wiphy to validate against
406 * @chandef: the channel definition to check
407 * @prohibited_flags: the regulatory channel flags that must not be set
408 * Return: %true if secondary channels are usable. %false otherwise.
410 bool cfg80211_chandef_usable(struct wiphy *wiphy,
411 const struct cfg80211_chan_def *chandef,
412 u32 prohibited_flags);
415 * enum survey_info_flags - survey information flags
417 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
418 * @SURVEY_INFO_IN_USE: channel is currently being used
419 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
420 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
421 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
422 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
423 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
425 * Used by the driver to indicate which info in &struct survey_info
426 * it has filled in during the get_survey().
428 enum survey_info_flags {
429 SURVEY_INFO_NOISE_DBM = 1<<0,
430 SURVEY_INFO_IN_USE = 1<<1,
431 SURVEY_INFO_CHANNEL_TIME = 1<<2,
432 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
433 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
434 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
435 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
439 * struct survey_info - channel survey response
441 * @channel: the channel this survey record reports, mandatory
442 * @filled: bitflag of flags from &enum survey_info_flags
443 * @noise: channel noise in dBm. This and all following fields are
445 * @channel_time: amount of time in ms the radio spent on the channel
446 * @channel_time_busy: amount of time the primary channel was sensed busy
447 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
448 * @channel_time_rx: amount of time the radio spent receiving data
449 * @channel_time_tx: amount of time the radio spent transmitting data
451 * Used by dump_survey() to report back per-channel survey information.
453 * This structure can later be expanded with things like
454 * channel duty cycle etc.
457 struct ieee80211_channel *channel;
459 u64 channel_time_busy;
460 u64 channel_time_ext_busy;
468 * struct cfg80211_crypto_settings - Crypto settings
469 * @wpa_versions: indicates which, if any, WPA versions are enabled
470 * (from enum nl80211_wpa_versions)
471 * @cipher_group: group key cipher suite (or 0 if unset)
472 * @n_ciphers_pairwise: number of AP supported unicast ciphers
473 * @ciphers_pairwise: unicast key cipher suites
474 * @n_akm_suites: number of AKM suites
475 * @akm_suites: AKM suites
476 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
477 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
478 * required to assume that the port is unauthorized until authorized by
479 * user space. Otherwise, port is marked authorized by default.
480 * @control_port_ethertype: the control port protocol that should be
481 * allowed through even on unauthorized ports
482 * @control_port_no_encrypt: TRUE to prevent encryption of control port
485 struct cfg80211_crypto_settings {
488 int n_ciphers_pairwise;
489 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
491 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
493 __be16 control_port_ethertype;
494 bool control_port_no_encrypt;
498 * struct cfg80211_beacon_data - beacon data
499 * @head: head portion of beacon (before TIM IE)
500 * or %NULL if not changed
501 * @tail: tail portion of beacon (after TIM IE)
502 * or %NULL if not changed
503 * @head_len: length of @head
504 * @tail_len: length of @tail
505 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
506 * @beacon_ies_len: length of beacon_ies in octets
507 * @proberesp_ies: extra information element(s) to add into Probe Response
509 * @proberesp_ies_len: length of proberesp_ies in octets
510 * @assocresp_ies: extra information element(s) to add into (Re)Association
511 * Response frames or %NULL
512 * @assocresp_ies_len: length of assocresp_ies in octets
513 * @probe_resp_len: length of probe response template (@probe_resp)
514 * @probe_resp: probe response template (AP mode only)
516 struct cfg80211_beacon_data {
517 const u8 *head, *tail;
518 const u8 *beacon_ies;
519 const u8 *proberesp_ies;
520 const u8 *assocresp_ies;
521 const u8 *probe_resp;
523 size_t head_len, tail_len;
524 size_t beacon_ies_len;
525 size_t proberesp_ies_len;
526 size_t assocresp_ies_len;
527 size_t probe_resp_len;
535 * struct cfg80211_acl_data - Access control list data
537 * @acl_policy: ACL policy to be applied on the station's
538 entry specified by mac_addr
539 * @n_acl_entries: Number of MAC address entries passed
540 * @mac_addrs: List of MAC addresses of stations to be used for ACL
542 struct cfg80211_acl_data {
543 enum nl80211_acl_policy acl_policy;
547 struct mac_address mac_addrs[];
551 * struct cfg80211_ap_settings - AP configuration
553 * Used to configure an AP interface.
555 * @chandef: defines the channel to use
556 * @beacon: beacon data
557 * @beacon_interval: beacon interval
558 * @dtim_period: DTIM period
559 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
561 * @ssid_len: length of @ssid
562 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
563 * @crypto: crypto settings
564 * @privacy: the BSS uses privacy
565 * @auth_type: Authentication type (algorithm)
566 * @inactivity_timeout: time in seconds to determine station's inactivity.
567 * @p2p_ctwindow: P2P CT Window
568 * @p2p_opp_ps: P2P opportunistic PS
569 * @acl: ACL configuration used by the drivers which has support for
570 * MAC address based access control
572 struct cfg80211_ap_settings {
573 struct cfg80211_chan_def chandef;
575 struct cfg80211_beacon_data beacon;
577 int beacon_interval, dtim_period;
580 enum nl80211_hidden_ssid hidden_ssid;
581 struct cfg80211_crypto_settings crypto;
583 enum nl80211_auth_type auth_type;
584 int inactivity_timeout;
587 const struct cfg80211_acl_data *acl;
591 * enum plink_action - actions to perform in mesh peers
593 * @PLINK_ACTION_INVALID: action 0 is reserved
594 * @PLINK_ACTION_OPEN: start mesh peer link establishment
595 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
598 PLINK_ACTION_INVALID,
604 * enum station_parameters_apply_mask - station parameter values to apply
605 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
607 * Not all station parameters have in-band "no change" signalling,
608 * for those that don't these flags will are used.
610 enum station_parameters_apply_mask {
611 STATION_PARAM_APPLY_UAPSD = BIT(0),
615 * struct station_parameters - station parameters
617 * Used to change and create a new station.
619 * @vlan: vlan interface station should belong to
620 * @supported_rates: supported rates in IEEE 802.11 format
621 * (or NULL for no change)
622 * @supported_rates_len: number of supported rates
623 * @sta_flags_mask: station flags that changed
624 * (bitmask of BIT(NL80211_STA_FLAG_...))
625 * @sta_flags_set: station flags values
626 * (bitmask of BIT(NL80211_STA_FLAG_...))
627 * @listen_interval: listen interval or -1 for no change
628 * @aid: AID or zero for no change
629 * @plink_action: plink action to take
630 * @plink_state: set the peer link state for a station
631 * @ht_capa: HT capabilities of station
632 * @vht_capa: VHT capabilities of station
633 * @uapsd_queues: bitmap of queues configured for uapsd. same format
634 * as the AC bitmap in the QoS info field
635 * @max_sp: max Service Period. same format as the MAX_SP in the
636 * QoS info field (but already shifted down)
637 * @sta_modify_mask: bitmap indicating which parameters changed
638 * (for those that don't have a natural "no change" value),
639 * see &enum station_parameters_apply_mask
640 * @local_pm: local link-specific mesh power save mode (no change when set
643 struct station_parameters {
645 struct net_device *vlan;
646 u32 sta_flags_mask, sta_flags_set;
650 u8 supported_rates_len;
653 struct ieee80211_ht_cap *ht_capa;
654 struct ieee80211_vht_cap *vht_capa;
657 enum nl80211_mesh_power_mode local_pm;
661 * enum station_info_flags - station information flags
663 * Used by the driver to indicate which info in &struct station_info
664 * it has filled in during get_station() or dump_station().
666 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
667 * @STATION_INFO_RX_BYTES: @rx_bytes filled
668 * @STATION_INFO_TX_BYTES: @tx_bytes filled
669 * @STATION_INFO_LLID: @llid filled
670 * @STATION_INFO_PLID: @plid filled
671 * @STATION_INFO_PLINK_STATE: @plink_state filled
672 * @STATION_INFO_SIGNAL: @signal filled
673 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
674 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
675 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
676 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
677 * @STATION_INFO_RX_PACKETS64: @rx_packets filled with 64-bit value
678 * @STATION_INFO_TX_PACKETS64: @tx_packets filled with 64-bit value
679 * @STATION_INFO_TX_RETRIES: @tx_retries filled
680 * @STATION_INFO_TX_FAILED: @tx_failed filled
681 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
682 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
683 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
684 * @STATION_INFO_BSS_PARAM: @bss_param filled
685 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
686 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
687 * @STATION_INFO_STA_FLAGS: @sta_flags filled
688 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
689 * @STATION_INFO_T_OFFSET: @t_offset filled
690 * @STATION_INFO_LOCAL_PM: @local_pm filled
691 * @STATION_INFO_PEER_PM: @peer_pm filled
692 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
694 enum station_info_flags {
695 STATION_INFO_INACTIVE_TIME = 1<<0,
696 STATION_INFO_RX_BYTES = 1<<1,
697 STATION_INFO_TX_BYTES = 1<<2,
698 STATION_INFO_LLID = 1<<3,
699 STATION_INFO_PLID = 1<<4,
700 STATION_INFO_PLINK_STATE = 1<<5,
701 STATION_INFO_SIGNAL = 1<<6,
702 STATION_INFO_TX_BITRATE = 1<<7,
703 STATION_INFO_RX_PACKETS = 1<<8,
704 STATION_INFO_TX_PACKETS = 1<<9,
705 STATION_INFO_TX_RETRIES = 1<<10,
706 STATION_INFO_TX_FAILED = 1<<11,
707 STATION_INFO_RX_DROP_MISC = 1<<12,
708 STATION_INFO_SIGNAL_AVG = 1<<13,
709 STATION_INFO_RX_BITRATE = 1<<14,
710 STATION_INFO_BSS_PARAM = 1<<15,
711 STATION_INFO_CONNECTED_TIME = 1<<16,
712 STATION_INFO_ASSOC_REQ_IES = 1<<17,
713 STATION_INFO_STA_FLAGS = 1<<18,
714 STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
715 STATION_INFO_T_OFFSET = 1<<20,
716 STATION_INFO_LOCAL_PM = 1<<21,
717 STATION_INFO_PEER_PM = 1<<22,
718 STATION_INFO_NONPEER_PM = 1<<23,
719 STATION_INFO_RX_BYTES64 = 1<<24,
720 STATION_INFO_TX_BYTES64 = 1<<25,
724 * enum station_info_rate_flags - bitrate info flags
726 * Used by the driver to indicate the specific rate transmission
727 * type for 802.11n transmissions.
729 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
730 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
731 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
732 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
733 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
734 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
735 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
736 * @RATE_INFO_FLAGS_60G: 60GHz MCS
738 enum rate_info_flags {
739 RATE_INFO_FLAGS_MCS = BIT(0),
740 RATE_INFO_FLAGS_VHT_MCS = BIT(1),
741 RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2),
742 RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3),
743 RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4),
744 RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5),
745 RATE_INFO_FLAGS_SHORT_GI = BIT(6),
746 RATE_INFO_FLAGS_60G = BIT(7),
750 * struct rate_info - bitrate information
752 * Information about a receiving or transmitting bitrate
754 * @flags: bitflag of flags from &enum rate_info_flags
755 * @mcs: mcs index if struct describes a 802.11n bitrate
756 * @legacy: bitrate in 100kbit/s for 802.11abg
757 * @nss: number of streams (VHT only)
767 * enum station_info_rate_flags - bitrate info flags
769 * Used by the driver to indicate the specific rate transmission
770 * type for 802.11n transmissions.
772 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
773 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
774 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
776 enum bss_param_flags {
777 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
778 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
779 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
783 * struct sta_bss_parameters - BSS parameters for the attached station
785 * Information about the currently associated BSS
787 * @flags: bitflag of flags from &enum bss_param_flags
788 * @dtim_period: DTIM period for the BSS
789 * @beacon_interval: beacon interval
791 struct sta_bss_parameters {
798 * struct station_info - station information
800 * Station information filled by driver for get_station() and dump_station.
802 * @filled: bitflag of flags from &enum station_info_flags
803 * @connected_time: time(in secs) since a station is last connected
804 * @inactive_time: time since last station activity (tx/rx) in milliseconds
805 * @rx_bytes: bytes received from this station
806 * @tx_bytes: bytes transmitted to this station
807 * @llid: mesh local link id
808 * @plid: mesh peer link id
809 * @plink_state: mesh peer link state
810 * @signal: The signal strength, type depends on the wiphy's signal_type.
811 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
812 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
813 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
814 * @txrate: current unicast bitrate from this station
815 * @rxrate: current unicast bitrate to this station
816 * @rx_packets: packets received from this station
817 * @tx_packets: packets transmitted to this station
818 * @tx_retries: cumulative retry counts
819 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
820 * @rx_dropped_misc: Dropped for un-specified reason.
821 * @bss_param: current BSS parameters
822 * @generation: generation number for nl80211 dumps.
823 * This number should increase every time the list of stations
824 * changes, i.e. when a station is added or removed, so that
825 * userspace can tell whether it got a consistent snapshot.
826 * @assoc_req_ies: IEs from (Re)Association Request.
827 * This is used only when in AP mode with drivers that do not use
828 * user space MLME/SME implementation. The information is provided for
829 * the cfg80211_new_sta() calls to notify user space of the IEs.
830 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
831 * @sta_flags: station flags mask & values
832 * @beacon_loss_count: Number of times beacon loss event has triggered.
833 * @t_offset: Time offset of the station relative to this host.
834 * @local_pm: local mesh STA power save mode
835 * @peer_pm: peer mesh STA power save mode
836 * @nonpeer_pm: non-peer mesh STA power save mode
838 struct station_info {
849 struct rate_info txrate;
850 struct rate_info rxrate;
856 struct sta_bss_parameters bss_param;
857 struct nl80211_sta_flag_update sta_flags;
861 const u8 *assoc_req_ies;
862 size_t assoc_req_ies_len;
864 u32 beacon_loss_count;
866 enum nl80211_mesh_power_mode local_pm;
867 enum nl80211_mesh_power_mode peer_pm;
868 enum nl80211_mesh_power_mode nonpeer_pm;
871 * Note: Add a new enum station_info_flags value for each new field and
872 * use it to check which fields are initialized.
877 * enum monitor_flags - monitor flags
879 * Monitor interface configuration flags. Note that these must be the bits
880 * according to the nl80211 flags.
882 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
883 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
884 * @MONITOR_FLAG_CONTROL: pass control frames
885 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
886 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
889 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
890 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
891 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
892 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
893 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
897 * enum mpath_info_flags - mesh path information flags
899 * Used by the driver to indicate which info in &struct mpath_info it has filled
900 * in during get_station() or dump_station().
902 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
903 * @MPATH_INFO_SN: @sn filled
904 * @MPATH_INFO_METRIC: @metric filled
905 * @MPATH_INFO_EXPTIME: @exptime filled
906 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
907 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
908 * @MPATH_INFO_FLAGS: @flags filled
910 enum mpath_info_flags {
911 MPATH_INFO_FRAME_QLEN = BIT(0),
912 MPATH_INFO_SN = BIT(1),
913 MPATH_INFO_METRIC = BIT(2),
914 MPATH_INFO_EXPTIME = BIT(3),
915 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
916 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
917 MPATH_INFO_FLAGS = BIT(6),
921 * struct mpath_info - mesh path information
923 * Mesh path information filled by driver for get_mpath() and dump_mpath().
925 * @filled: bitfield of flags from &enum mpath_info_flags
926 * @frame_qlen: number of queued frames for this destination
927 * @sn: target sequence number
928 * @metric: metric (cost) of this mesh path
929 * @exptime: expiration time for the mesh path from now, in msecs
930 * @flags: mesh path flags
931 * @discovery_timeout: total mesh path discovery timeout, in msecs
932 * @discovery_retries: mesh path discovery retries
933 * @generation: generation number for nl80211 dumps.
934 * This number should increase every time the list of mesh paths
935 * changes, i.e. when a station is added or removed, so that
936 * userspace can tell whether it got a consistent snapshot.
944 u32 discovery_timeout;
945 u8 discovery_retries;
952 * struct bss_parameters - BSS parameters
954 * Used to change BSS parameters (mainly for AP mode).
956 * @use_cts_prot: Whether to use CTS protection
957 * (0 = no, 1 = yes, -1 = do not change)
958 * @use_short_preamble: Whether the use of short preambles is allowed
959 * (0 = no, 1 = yes, -1 = do not change)
960 * @use_short_slot_time: Whether the use of short slot time is allowed
961 * (0 = no, 1 = yes, -1 = do not change)
962 * @basic_rates: basic rates in IEEE 802.11 format
963 * (or NULL for no change)
964 * @basic_rates_len: number of basic rates
965 * @ap_isolate: do not forward packets between connected stations
966 * @ht_opmode: HT Operation mode
967 * (u16 = opmode, -1 = do not change)
968 * @p2p_ctwindow: P2P CT Window (-1 = no change)
969 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
971 struct bss_parameters {
973 int use_short_preamble;
974 int use_short_slot_time;
979 s8 p2p_ctwindow, p2p_opp_ps;
983 * struct mesh_config - 802.11s mesh configuration
985 * These parameters can be changed while the mesh is active.
987 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
988 * by the Mesh Peering Open message
989 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
990 * used by the Mesh Peering Open message
991 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
992 * the mesh peering management to close a mesh peering
993 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
995 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
996 * be sent to establish a new peer link instance in a mesh
997 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
998 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1000 * @auto_open_plinks: whether we should automatically open peer links when we
1001 * detect compatible mesh peers
1002 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1003 * synchronize to for 11s default synchronization method
1004 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1005 * that an originator mesh STA can send to a particular path target
1006 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1007 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1008 * a path discovery in milliseconds
1009 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1010 * receiving a PREQ shall consider the forwarding information from the
1011 * root to be valid. (TU = time unit)
1012 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1013 * which a mesh STA can send only one action frame containing a PREQ
1015 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1016 * which a mesh STA can send only one Action frame containing a PERR
1018 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1019 * it takes for an HWMP information element to propagate across the mesh
1020 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1021 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1022 * announcements are transmitted
1023 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1024 * station has access to a broader network beyond the MBSS. (This is
1025 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1026 * only means that the station will announce others it's a mesh gate, but
1027 * not necessarily using the gate announcement protocol. Still keeping the
1028 * same nomenclature to be in sync with the spec)
1029 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1030 * entity (default is TRUE - forwarding entity)
1031 * @rssi_threshold: the threshold for average signal strength of candidate
1032 * station to establish a peer link
1033 * @ht_opmode: mesh HT protection mode
1035 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1036 * receiving a proactive PREQ shall consider the forwarding information to
1037 * the root mesh STA to be valid.
1039 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1040 * PREQs are transmitted.
1041 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1042 * during which a mesh STA can send only one Action frame containing
1043 * a PREQ element for root path confirmation.
1044 * @power_mode: The default mesh power save mode which will be the initial
1045 * setting for new peer links.
1046 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1047 * after transmitting its beacon.
1049 struct mesh_config {
1050 u16 dot11MeshRetryTimeout;
1051 u16 dot11MeshConfirmTimeout;
1052 u16 dot11MeshHoldingTimeout;
1053 u16 dot11MeshMaxPeerLinks;
1054 u8 dot11MeshMaxRetries;
1057 bool auto_open_plinks;
1058 u32 dot11MeshNbrOffsetMaxNeighbor;
1059 u8 dot11MeshHWMPmaxPREQretries;
1060 u32 path_refresh_time;
1061 u16 min_discovery_timeout;
1062 u32 dot11MeshHWMPactivePathTimeout;
1063 u16 dot11MeshHWMPpreqMinInterval;
1064 u16 dot11MeshHWMPperrMinInterval;
1065 u16 dot11MeshHWMPnetDiameterTraversalTime;
1066 u8 dot11MeshHWMPRootMode;
1067 u16 dot11MeshHWMPRannInterval;
1068 bool dot11MeshGateAnnouncementProtocol;
1069 bool dot11MeshForwarding;
1072 u32 dot11MeshHWMPactivePathToRootTimeout;
1073 u16 dot11MeshHWMProotInterval;
1074 u16 dot11MeshHWMPconfirmationInterval;
1075 enum nl80211_mesh_power_mode power_mode;
1076 u16 dot11MeshAwakeWindowDuration;
1080 * struct mesh_setup - 802.11s mesh setup configuration
1081 * @chandef: defines the channel to use
1082 * @mesh_id: the mesh ID
1083 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1084 * @sync_method: which synchronization method to use
1085 * @path_sel_proto: which path selection protocol to use
1086 * @path_metric: which metric to use
1087 * @ie: vendor information elements (optional)
1088 * @ie_len: length of vendor information elements
1089 * @is_authenticated: this mesh requires authentication
1090 * @is_secure: this mesh uses security
1091 * @dtim_period: DTIM period to use
1092 * @beacon_interval: beacon interval to use
1093 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1095 * These parameters are fixed when the mesh is created.
1098 struct cfg80211_chan_def chandef;
1106 bool is_authenticated;
1109 u16 beacon_interval;
1110 int mcast_rate[IEEE80211_NUM_BANDS];
1114 * struct ieee80211_txq_params - TX queue parameters
1115 * @ac: AC identifier
1116 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1117 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1119 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1121 * @aifs: Arbitration interframe space [0..255]
1123 struct ieee80211_txq_params {
1132 * DOC: Scanning and BSS list handling
1134 * The scanning process itself is fairly simple, but cfg80211 offers quite
1135 * a bit of helper functionality. To start a scan, the scan operation will
1136 * be invoked with a scan definition. This scan definition contains the
1137 * channels to scan, and the SSIDs to send probe requests for (including the
1138 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1139 * probe. Additionally, a scan request may contain extra information elements
1140 * that should be added to the probe request. The IEs are guaranteed to be
1141 * well-formed, and will not exceed the maximum length the driver advertised
1142 * in the wiphy structure.
1144 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1145 * it is responsible for maintaining the BSS list; the driver should not
1146 * maintain a list itself. For this notification, various functions exist.
1148 * Since drivers do not maintain a BSS list, there are also a number of
1149 * functions to search for a BSS and obtain information about it from the
1150 * BSS structure cfg80211 maintains. The BSS list is also made available
1155 * struct cfg80211_ssid - SSID description
1157 * @ssid_len: length of the ssid
1159 struct cfg80211_ssid {
1160 u8 ssid[IEEE80211_MAX_SSID_LEN];
1165 * struct cfg80211_scan_request - scan request description
1167 * @ssids: SSIDs to scan for (active scan only)
1168 * @n_ssids: number of SSIDs
1169 * @channels: channels to scan on.
1170 * @n_channels: total number of channels to scan
1171 * @ie: optional information element(s) to add into Probe Request or %NULL
1172 * @ie_len: length of ie in octets
1173 * @flags: bit field of flags controlling operation
1174 * @rates: bitmap of rates to advertise for each band
1175 * @wiphy: the wiphy this was for
1176 * @scan_start: time (in jiffies) when the scan started
1177 * @wdev: the wireless device to scan for
1178 * @aborted: (internal) scan request was notified as aborted
1179 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1181 struct cfg80211_scan_request {
1182 struct cfg80211_ssid *ssids;
1189 u32 rates[IEEE80211_NUM_BANDS];
1191 struct wireless_dev *wdev;
1194 struct wiphy *wiphy;
1195 unsigned long scan_start;
1200 struct ieee80211_channel *channels[0];
1204 * struct cfg80211_match_set - sets of attributes to match
1206 * @ssid: SSID to be matched
1208 struct cfg80211_match_set {
1209 struct cfg80211_ssid ssid;
1213 * struct cfg80211_sched_scan_request - scheduled scan request description
1215 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1216 * @n_ssids: number of SSIDs
1217 * @n_channels: total number of channels to scan
1218 * @interval: interval between each scheduled scan cycle
1219 * @ie: optional information element(s) to add into Probe Request or %NULL
1220 * @ie_len: length of ie in octets
1221 * @flags: bit field of flags controlling operation
1222 * @match_sets: sets of parameters to be matched for a scan result
1223 * entry to be considered valid and to be passed to the host
1224 * (others are filtered out).
1225 * If ommited, all results are passed.
1226 * @n_match_sets: number of match sets
1227 * @wiphy: the wiphy this was for
1228 * @dev: the interface
1229 * @channels: channels to scan
1230 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1232 struct cfg80211_sched_scan_request {
1233 struct cfg80211_ssid *ssids;
1240 struct cfg80211_match_set *match_sets;
1245 struct wiphy *wiphy;
1246 struct net_device *dev;
1247 unsigned long scan_start;
1250 struct ieee80211_channel *channels[0];
1254 * enum cfg80211_signal_type - signal type
1256 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1257 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1258 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1260 enum cfg80211_signal_type {
1261 CFG80211_SIGNAL_TYPE_NONE,
1262 CFG80211_SIGNAL_TYPE_MBM,
1263 CFG80211_SIGNAL_TYPE_UNSPEC,
1267 * struct cfg80211_bss_ie_data - BSS entry IE data
1268 * @rcu_head: internal use, for freeing
1269 * @len: length of the IEs
1272 struct cfg80211_bss_ies {
1273 struct rcu_head rcu_head;
1279 * struct cfg80211_bss - BSS description
1281 * This structure describes a BSS (which may also be a mesh network)
1282 * for use in scan results and similar.
1284 * @channel: channel this BSS is on
1285 * @bssid: BSSID of the BSS
1286 * @tsf: timestamp of last received update
1287 * @beacon_interval: the beacon interval as from the frame
1288 * @capability: the capability field in host byte order
1289 * @ies: the information elements (Note that there
1290 * is no guarantee that these are well-formed!); this is a pointer to
1291 * either the beacon_ies or proberesp_ies depending on whether Probe
1292 * Response frame has been received
1293 * @beacon_ies: the information elements from the last Beacon frame
1294 * @proberesp_ies: the information elements from the last Probe Response frame
1295 * @signal: signal strength value (type depends on the wiphy's signal_type)
1296 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1298 struct cfg80211_bss {
1301 struct ieee80211_channel *channel;
1303 const struct cfg80211_bss_ies __rcu *ies;
1304 const struct cfg80211_bss_ies __rcu *beacon_ies;
1305 const struct cfg80211_bss_ies __rcu *proberesp_ies;
1309 u16 beacon_interval;
1314 u8 priv[0] __aligned(sizeof(void *));
1318 * ieee80211_bss_get_ie - find IE with given ID
1319 * @bss: the bss to search
1322 * Note that the return value is an RCU-protected pointer, so
1323 * rcu_read_lock() must be held when calling this function.
1324 * Return: %NULL if not found.
1326 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1330 * struct cfg80211_auth_request - Authentication request data
1332 * This structure provides information needed to complete IEEE 802.11
1335 * @bss: The BSS to authenticate with.
1336 * @auth_type: Authentication type (algorithm)
1337 * @ie: Extra IEs to add to Authentication frame or %NULL
1338 * @ie_len: Length of ie buffer in octets
1339 * @key_len: length of WEP key for shared key authentication
1340 * @key_idx: index of WEP key for shared key authentication
1341 * @key: WEP key for shared key authentication
1342 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1343 * Authentication transaction sequence number field.
1344 * @sae_data_len: Length of sae_data buffer in octets
1346 struct cfg80211_auth_request {
1347 struct cfg80211_bss *bss;
1350 enum nl80211_auth_type auth_type;
1352 u8 key_len, key_idx;
1354 size_t sae_data_len;
1358 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1360 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1362 enum cfg80211_assoc_req_flags {
1363 ASSOC_REQ_DISABLE_HT = BIT(0),
1367 * struct cfg80211_assoc_request - (Re)Association request data
1369 * This structure provides information needed to complete IEEE 802.11
1371 * @bss: The BSS to associate with. If the call is successful the driver
1372 * is given a reference that it must release, normally via a call to
1373 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1374 * call to cfg80211_put_bss() (in addition to calling
1375 * cfg80211_send_assoc_timeout())
1376 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1377 * @ie_len: Length of ie buffer in octets
1378 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1379 * @crypto: crypto settings
1380 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1381 * @flags: See &enum cfg80211_assoc_req_flags
1382 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1383 * will be used in ht_capa. Un-supported values will be ignored.
1384 * @ht_capa_mask: The bits of ht_capa which are to be used.
1386 struct cfg80211_assoc_request {
1387 struct cfg80211_bss *bss;
1388 const u8 *ie, *prev_bssid;
1390 struct cfg80211_crypto_settings crypto;
1393 struct ieee80211_ht_cap ht_capa;
1394 struct ieee80211_ht_cap ht_capa_mask;
1398 * struct cfg80211_deauth_request - Deauthentication request data
1400 * This structure provides information needed to complete IEEE 802.11
1403 * @bssid: the BSSID of the BSS to deauthenticate from
1404 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1405 * @ie_len: Length of ie buffer in octets
1406 * @reason_code: The reason code for the deauthentication
1408 struct cfg80211_deauth_request {
1413 bool local_state_change;
1417 * struct cfg80211_disassoc_request - Disassociation request data
1419 * This structure provides information needed to complete IEEE 802.11
1422 * @bss: the BSS to disassociate from
1423 * @ie: Extra IEs to add to Disassociation frame or %NULL
1424 * @ie_len: Length of ie buffer in octets
1425 * @reason_code: The reason code for the disassociation
1426 * @local_state_change: This is a request for a local state only, i.e., no
1427 * Disassociation frame is to be transmitted.
1429 struct cfg80211_disassoc_request {
1430 struct cfg80211_bss *bss;
1434 bool local_state_change;
1438 * struct cfg80211_ibss_params - IBSS parameters
1440 * This structure defines the IBSS parameters for the join_ibss()
1443 * @ssid: The SSID, will always be non-null.
1444 * @ssid_len: The length of the SSID, will always be non-zero.
1445 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1446 * search for IBSSs with a different BSSID.
1447 * @chandef: defines the channel to use if no other IBSS to join can be found
1448 * @channel_fixed: The channel should be fixed -- do not search for
1449 * IBSSs to join on other channels.
1450 * @ie: information element(s) to include in the beacon
1451 * @ie_len: length of that
1452 * @beacon_interval: beacon interval to use
1453 * @privacy: this is a protected network, keys will be configured
1455 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1456 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1457 * required to assume that the port is unauthorized until authorized by
1458 * user space. Otherwise, port is marked authorized by default.
1459 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1460 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1462 struct cfg80211_ibss_params {
1465 struct cfg80211_chan_def chandef;
1467 u8 ssid_len, ie_len;
1468 u16 beacon_interval;
1473 int mcast_rate[IEEE80211_NUM_BANDS];
1477 * struct cfg80211_connect_params - Connection parameters
1479 * This structure provides information needed to complete IEEE 802.11
1480 * authentication and association.
1482 * @channel: The channel to use or %NULL if not specified (auto-select based
1484 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1487 * @ssid_len: Length of ssid in octets
1488 * @auth_type: Authentication type (algorithm)
1489 * @ie: IEs for association request
1490 * @ie_len: Length of assoc_ie in octets
1491 * @privacy: indicates whether privacy-enabled APs should be used
1492 * @mfp: indicate whether management frame protection is used
1493 * @crypto: crypto settings
1494 * @key_len: length of WEP key for shared key authentication
1495 * @key_idx: index of WEP key for shared key authentication
1496 * @key: WEP key for shared key authentication
1497 * @flags: See &enum cfg80211_assoc_req_flags
1498 * @bg_scan_period: Background scan period in seconds
1499 * or -1 to indicate that default value is to be used.
1500 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1501 * will be used in ht_capa. Un-supported values will be ignored.
1502 * @ht_capa_mask: The bits of ht_capa which are to be used.
1504 struct cfg80211_connect_params {
1505 struct ieee80211_channel *channel;
1509 enum nl80211_auth_type auth_type;
1513 enum nl80211_mfp mfp;
1514 struct cfg80211_crypto_settings crypto;
1516 u8 key_len, key_idx;
1519 struct ieee80211_ht_cap ht_capa;
1520 struct ieee80211_ht_cap ht_capa_mask;
1524 * enum wiphy_params_flags - set_wiphy_params bitfield values
1525 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1526 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1527 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1528 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1529 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1531 enum wiphy_params_flags {
1532 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
1533 WIPHY_PARAM_RETRY_LONG = 1 << 1,
1534 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
1535 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
1536 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
1540 * cfg80211_bitrate_mask - masks for bitrate control
1542 struct cfg80211_bitrate_mask {
1545 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
1546 } control[IEEE80211_NUM_BANDS];
1549 * struct cfg80211_pmksa - PMK Security Association
1551 * This structure is passed to the set/del_pmksa() method for PMKSA
1554 * @bssid: The AP's BSSID.
1555 * @pmkid: The PMK material itself.
1557 struct cfg80211_pmksa {
1563 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1564 * @mask: bitmask where to match pattern and where to ignore bytes,
1565 * one bit per byte, in same format as nl80211
1566 * @pattern: bytes to match where bitmask is 1
1567 * @pattern_len: length of pattern (in bytes)
1569 * Internal note: @mask and @pattern are allocated in one chunk of
1570 * memory, free @mask only!
1572 struct cfg80211_wowlan_trig_pkt_pattern {
1578 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1580 * This structure defines the enabled WoWLAN triggers for the device.
1581 * @any: wake up on any activity -- special trigger if device continues
1582 * operating as normal during suspend
1583 * @disconnect: wake up if getting disconnected
1584 * @magic_pkt: wake up on receiving magic packet
1585 * @patterns: wake up on receiving packet matching a pattern
1586 * @n_patterns: number of patterns
1587 * @gtk_rekey_failure: wake up on GTK rekey failure
1588 * @eap_identity_req: wake up on EAP identity request packet
1589 * @four_way_handshake: wake up on 4-way handshake
1590 * @rfkill_release: wake up when rfkill is released
1592 struct cfg80211_wowlan {
1593 bool any, disconnect, magic_pkt, gtk_rekey_failure,
1594 eap_identity_req, four_way_handshake,
1596 struct cfg80211_wowlan_trig_pkt_pattern *patterns;
1601 * struct cfg80211_wowlan_wakeup - wakeup report
1602 * @disconnect: woke up by getting disconnected
1603 * @magic_pkt: woke up by receiving magic packet
1604 * @gtk_rekey_failure: woke up by GTK rekey failure
1605 * @eap_identity_req: woke up by EAP identity request packet
1606 * @four_way_handshake: woke up by 4-way handshake
1607 * @rfkill_release: woke up by rfkill being released
1608 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
1609 * @packet_present_len: copied wakeup packet data
1610 * @packet_len: original wakeup packet length
1611 * @packet: The packet causing the wakeup, if any.
1612 * @packet_80211: For pattern match, magic packet and other data
1613 * frame triggers an 802.3 frame should be reported, for
1614 * disconnect due to deauth 802.11 frame. This indicates which
1617 struct cfg80211_wowlan_wakeup {
1618 bool disconnect, magic_pkt, gtk_rekey_failure,
1619 eap_identity_req, four_way_handshake,
1620 rfkill_release, packet_80211;
1622 u32 packet_present_len, packet_len;
1627 * struct cfg80211_gtk_rekey_data - rekey data
1628 * @kek: key encryption key
1629 * @kck: key confirmation key
1630 * @replay_ctr: replay counter
1632 struct cfg80211_gtk_rekey_data {
1633 u8 kek[NL80211_KEK_LEN];
1634 u8 kck[NL80211_KCK_LEN];
1635 u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
1639 * struct cfg80211_ops - backend description for wireless configuration
1641 * This struct is registered by fullmac card drivers and/or wireless stacks
1642 * in order to handle configuration requests on their interfaces.
1644 * All callbacks except where otherwise noted should return 0
1645 * on success or a negative error code.
1647 * All operations are currently invoked under rtnl for consistency with the
1648 * wireless extensions but this is subject to reevaluation as soon as this
1649 * code is used more widely and we have a first user without wext.
1651 * @suspend: wiphy device needs to be suspended. The variable @wow will
1652 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1653 * configured for the device.
1654 * @resume: wiphy device needs to be resumed
1655 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1656 * to call device_set_wakeup_enable() to enable/disable wakeup from
1659 * @add_virtual_intf: create a new virtual interface with the given name,
1660 * must set the struct wireless_dev's iftype. Beware: You must create
1661 * the new netdev in the wiphy's network namespace! Returns the struct
1662 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
1663 * also set the address member in the wdev.
1665 * @del_virtual_intf: remove the virtual interface
1667 * @change_virtual_intf: change type/configuration of virtual interface,
1668 * keep the struct wireless_dev's iftype updated.
1670 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1671 * when adding a group key.
1673 * @get_key: get information about the key with the given parameters.
1674 * @mac_addr will be %NULL when requesting information for a group
1675 * key. All pointers given to the @callback function need not be valid
1676 * after it returns. This function should return an error if it is
1677 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1679 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1680 * and @key_index, return -ENOENT if the key doesn't exist.
1682 * @set_default_key: set the default key on an interface
1684 * @set_default_mgmt_key: set the default management frame key on an interface
1686 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1688 * @start_ap: Start acting in AP mode defined by the parameters.
1689 * @change_beacon: Change the beacon parameters for an access point mode
1690 * interface. This should reject the call when AP mode wasn't started.
1691 * @stop_ap: Stop being an AP, including stopping beaconing.
1693 * @add_station: Add a new station.
1694 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1695 * @change_station: Modify a given station. Note that flags changes are not much
1696 * validated in cfg80211, in particular the auth/assoc/authorized flags
1697 * might come to the driver in invalid combinations -- make sure to check
1698 * them, also against the existing state! Also, supported_rates changes are
1699 * not checked in station mode -- drivers need to reject (or ignore) them
1700 * for anything but TDLS peers.
1701 * @get_station: get station information for the station identified by @mac
1702 * @dump_station: dump station callback -- resume dump at index @idx
1704 * @add_mpath: add a fixed mesh path
1705 * @del_mpath: delete a given mesh path
1706 * @change_mpath: change a given mesh path
1707 * @get_mpath: get a mesh path for the given parameters
1708 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1709 * @join_mesh: join the mesh network with the specified parameters
1710 * @leave_mesh: leave the current mesh network
1712 * @get_mesh_config: Get the current mesh configuration
1714 * @update_mesh_config: Update mesh parameters on a running mesh.
1715 * The mask is a bitfield which tells us which parameters to
1716 * set, and which to leave alone.
1718 * @change_bss: Modify parameters for a given BSS.
1720 * @set_txq_params: Set TX queue parameters
1722 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1723 * as it doesn't implement join_mesh and needs to set the channel to
1724 * join the mesh instead.
1726 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1727 * interfaces are active this callback should reject the configuration.
1728 * If no interfaces are active or the device is down, the channel should
1729 * be stored for when a monitor interface becomes active.
1731 * @scan: Request to do a scan. If returning zero, the scan request is given
1732 * the driver, and will be valid until passed to cfg80211_scan_done().
1733 * For scan results, call cfg80211_inform_bss(); you can call this outside
1734 * the scan/scan_done bracket too.
1736 * @auth: Request to authenticate with the specified peer
1737 * @assoc: Request to (re)associate with the specified peer
1738 * @deauth: Request to deauthenticate from the specified peer
1739 * @disassoc: Request to disassociate from the specified peer
1741 * @connect: Connect to the ESS with the specified parameters. When connected,
1742 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1743 * If the connection fails for some reason, call cfg80211_connect_result()
1744 * with the status from the AP.
1745 * @disconnect: Disconnect from the BSS/ESS.
1747 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1748 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1750 * @leave_ibss: Leave the IBSS.
1752 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
1755 * @set_wiphy_params: Notify that wiphy parameters have changed;
1756 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1757 * have changed. The actual parameter values are available in
1758 * struct wiphy. If returning an error, no value should be changed.
1760 * @set_tx_power: set the transmit power according to the parameters,
1761 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
1762 * wdev may be %NULL if power was set for the wiphy, and will
1763 * always be %NULL unless the driver supports per-vif TX power
1764 * (as advertised by the nl80211 feature flag.)
1765 * @get_tx_power: store the current TX power into the dbm variable;
1766 * return 0 if successful
1768 * @set_wds_peer: set the WDS peer for a WDS interface
1770 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1771 * functions to adjust rfkill hw state
1773 * @dump_survey: get site survey information.
1775 * @remain_on_channel: Request the driver to remain awake on the specified
1776 * channel for the specified duration to complete an off-channel
1777 * operation (e.g., public action frame exchange). When the driver is
1778 * ready on the requested channel, it must indicate this with an event
1779 * notification by calling cfg80211_ready_on_channel().
1780 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1781 * This allows the operation to be terminated prior to timeout based on
1782 * the duration value.
1783 * @mgmt_tx: Transmit a management frame.
1784 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1785 * frame on another channel
1787 * @testmode_cmd: run a test mode command
1788 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1789 * used by the function, but 0 and 1 must not be touched. Additionally,
1790 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1791 * dump and return to userspace with an error, so be careful. If any data
1792 * was passed in from userspace then the data/len arguments will be present
1793 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1795 * @set_bitrate_mask: set the bitrate mask configuration
1797 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1798 * devices running firmwares capable of generating the (re) association
1799 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1800 * @del_pmksa: Delete a cached PMKID.
1801 * @flush_pmksa: Flush all cached PMKIDs.
1802 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1803 * allows the driver to adjust the dynamic ps timeout value.
1804 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1805 * @set_cqm_txe_config: Configure connection quality monitor TX error
1807 * @sched_scan_start: Tell the driver to start a scheduled scan.
1808 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan.
1810 * @mgmt_frame_register: Notify driver that a management frame type was
1811 * registered. Note that this callback may not sleep, and cannot run
1812 * concurrently with itself.
1814 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1815 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1816 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1817 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1819 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1821 * @set_ringparam: Set tx and rx ring sizes.
1823 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1825 * @tdls_mgmt: Transmit a TDLS management frame.
1826 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1828 * @probe_client: probe an associated client, must return a cookie that it
1829 * later passes to cfg80211_probe_status().
1831 * @set_noack_map: Set the NoAck Map for the TIDs.
1833 * @get_et_sset_count: Ethtool API to get string-set count.
1834 * See @ethtool_ops.get_sset_count
1836 * @get_et_stats: Ethtool API to get a set of u64 stats.
1837 * See @ethtool_ops.get_ethtool_stats
1839 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1840 * and perhaps other supported types of ethtool data-sets.
1841 * See @ethtool_ops.get_strings
1843 * @get_channel: Get the current operating channel for the virtual interface.
1844 * For monitor interfaces, it should return %NULL unless there's a single
1845 * current monitoring channel.
1847 * @start_p2p_device: Start the given P2P device.
1848 * @stop_p2p_device: Stop the given P2P device.
1850 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
1851 * Parameters include ACL policy, an array of MAC address of stations
1852 * and the number of MAC addresses. If there is already a list in driver
1853 * this new list replaces the existing one. Driver has to clear its ACL
1854 * when number of MAC addresses entries is passed as 0. Drivers which
1855 * advertise the support for MAC based ACL have to implement this callback.
1857 struct cfg80211_ops {
1858 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
1859 int (*resume)(struct wiphy *wiphy);
1860 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
1862 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
1864 enum nl80211_iftype type,
1866 struct vif_params *params);
1867 int (*del_virtual_intf)(struct wiphy *wiphy,
1868 struct wireless_dev *wdev);
1869 int (*change_virtual_intf)(struct wiphy *wiphy,
1870 struct net_device *dev,
1871 enum nl80211_iftype type, u32 *flags,
1872 struct vif_params *params);
1874 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1875 u8 key_index, bool pairwise, const u8 *mac_addr,
1876 struct key_params *params);
1877 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1878 u8 key_index, bool pairwise, const u8 *mac_addr,
1880 void (*callback)(void *cookie, struct key_params*));
1881 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1882 u8 key_index, bool pairwise, const u8 *mac_addr);
1883 int (*set_default_key)(struct wiphy *wiphy,
1884 struct net_device *netdev,
1885 u8 key_index, bool unicast, bool multicast);
1886 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1887 struct net_device *netdev,
1890 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
1891 struct cfg80211_ap_settings *settings);
1892 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
1893 struct cfg80211_beacon_data *info);
1894 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
1897 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1898 u8 *mac, struct station_parameters *params);
1899 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1901 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1902 u8 *mac, struct station_parameters *params);
1903 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1904 u8 *mac, struct station_info *sinfo);
1905 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1906 int idx, u8 *mac, struct station_info *sinfo);
1908 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1909 u8 *dst, u8 *next_hop);
1910 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1912 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1913 u8 *dst, u8 *next_hop);
1914 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1915 u8 *dst, u8 *next_hop,
1916 struct mpath_info *pinfo);
1917 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1918 int idx, u8 *dst, u8 *next_hop,
1919 struct mpath_info *pinfo);
1920 int (*get_mesh_config)(struct wiphy *wiphy,
1921 struct net_device *dev,
1922 struct mesh_config *conf);
1923 int (*update_mesh_config)(struct wiphy *wiphy,
1924 struct net_device *dev, u32 mask,
1925 const struct mesh_config *nconf);
1926 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
1927 const struct mesh_config *conf,
1928 const struct mesh_setup *setup);
1929 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
1931 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1932 struct bss_parameters *params);
1934 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1935 struct ieee80211_txq_params *params);
1937 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
1938 struct net_device *dev,
1939 struct ieee80211_channel *chan);
1941 int (*set_monitor_channel)(struct wiphy *wiphy,
1942 struct cfg80211_chan_def *chandef);
1944 int (*scan)(struct wiphy *wiphy,
1945 struct cfg80211_scan_request *request);
1947 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1948 struct cfg80211_auth_request *req);
1949 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1950 struct cfg80211_assoc_request *req);
1951 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1952 struct cfg80211_deauth_request *req);
1953 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1954 struct cfg80211_disassoc_request *req);
1956 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1957 struct cfg80211_connect_params *sme);
1958 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1961 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1962 struct cfg80211_ibss_params *params);
1963 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1965 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
1966 int rate[IEEE80211_NUM_BANDS]);
1968 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1970 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
1971 enum nl80211_tx_power_setting type, int mbm);
1972 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
1975 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1978 void (*rfkill_poll)(struct wiphy *wiphy);
1980 #ifdef CONFIG_NL80211_TESTMODE
1981 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1982 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
1983 struct netlink_callback *cb,
1984 void *data, int len);
1987 int (*set_bitrate_mask)(struct wiphy *wiphy,
1988 struct net_device *dev,
1990 const struct cfg80211_bitrate_mask *mask);
1992 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1993 int idx, struct survey_info *info);
1995 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1996 struct cfg80211_pmksa *pmksa);
1997 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1998 struct cfg80211_pmksa *pmksa);
1999 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
2001 int (*remain_on_channel)(struct wiphy *wiphy,
2002 struct wireless_dev *wdev,
2003 struct ieee80211_channel *chan,
2004 unsigned int duration,
2006 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
2007 struct wireless_dev *wdev,
2010 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
2011 struct ieee80211_channel *chan, bool offchan,
2012 unsigned int wait, const u8 *buf, size_t len,
2013 bool no_cck, bool dont_wait_for_ack, u64 *cookie);
2014 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
2015 struct wireless_dev *wdev,
2018 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
2019 bool enabled, int timeout);
2021 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
2022 struct net_device *dev,
2023 s32 rssi_thold, u32 rssi_hyst);
2025 int (*set_cqm_txe_config)(struct wiphy *wiphy,
2026 struct net_device *dev,
2027 u32 rate, u32 pkts, u32 intvl);
2029 void (*mgmt_frame_register)(struct wiphy *wiphy,
2030 struct wireless_dev *wdev,
2031 u16 frame_type, bool reg);
2033 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
2034 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
2036 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
2037 void (*get_ringparam)(struct wiphy *wiphy,
2038 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
2040 int (*sched_scan_start)(struct wiphy *wiphy,
2041 struct net_device *dev,
2042 struct cfg80211_sched_scan_request *request);
2043 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
2045 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
2046 struct cfg80211_gtk_rekey_data *data);
2048 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
2049 u8 *peer, u8 action_code, u8 dialog_token,
2050 u16 status_code, const u8 *buf, size_t len);
2051 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
2052 u8 *peer, enum nl80211_tdls_operation oper);
2054 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
2055 const u8 *peer, u64 *cookie);
2057 int (*set_noack_map)(struct wiphy *wiphy,
2058 struct net_device *dev,
2061 int (*get_et_sset_count)(struct wiphy *wiphy,
2062 struct net_device *dev, int sset);
2063 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
2064 struct ethtool_stats *stats, u64 *data);
2065 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
2066 u32 sset, u8 *data);
2068 int (*get_channel)(struct wiphy *wiphy,
2069 struct wireless_dev *wdev,
2070 struct cfg80211_chan_def *chandef);
2072 int (*start_p2p_device)(struct wiphy *wiphy,
2073 struct wireless_dev *wdev);
2074 void (*stop_p2p_device)(struct wiphy *wiphy,
2075 struct wireless_dev *wdev);
2077 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
2078 const struct cfg80211_acl_data *params);
2082 * wireless hardware and networking interfaces structures
2083 * and registration/helper functions
2087 * enum wiphy_flags - wiphy capability flags
2089 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
2090 * has its own custom regulatory domain and cannot identify the
2091 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
2092 * we will disregard the first regulatory hint (when the
2093 * initiator is %REGDOM_SET_BY_CORE).
2094 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
2095 * ignore regulatory domain settings until it gets its own regulatory
2096 * domain via its regulatory_hint() unless the regulatory hint is
2097 * from a country IE. After its gets its own regulatory domain it will
2098 * only allow further regulatory domain settings to further enhance
2099 * compliance. For example if channel 13 and 14 are disabled by this
2100 * regulatory domain no user regulatory domain can enable these channels
2101 * at a later time. This can be used for devices which do not have
2102 * calibration information guaranteed for frequencies or settings
2103 * outside of its regulatory domain. If used in combination with
2104 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
2106 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
2107 * that passive scan flags and beaconing flags may not be lifted by
2108 * cfg80211 due to regulatory beacon hints. For more information on beacon
2109 * hints read the documenation for regulatory_hint_found_beacon()
2110 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2112 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2113 * by default -- this flag will be set depending on the kernel's default
2114 * on wiphy_new(), but can be changed by the driver if it has a good
2115 * reason to override the default
2116 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2117 * on a VLAN interface)
2118 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2119 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2120 * control port protocol ethertype. The device also honours the
2121 * control_port_no_encrypt flag.
2122 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2123 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2124 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2125 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2126 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2128 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2129 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2130 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2131 * link setup/discovery operations internally. Setup, discovery and
2132 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2133 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2134 * used for asking the driver/firmware to perform a TDLS operation.
2135 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2136 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2137 * when there are virtual interfaces in AP mode by calling
2138 * cfg80211_report_obss_beacon().
2139 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2140 * responds to probe-requests in hardware.
2141 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2142 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2145 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
2146 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
2147 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
2148 WIPHY_FLAG_NETNS_OK = BIT(3),
2149 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
2150 WIPHY_FLAG_4ADDR_AP = BIT(5),
2151 WIPHY_FLAG_4ADDR_STATION = BIT(6),
2152 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
2153 WIPHY_FLAG_IBSS_RSN = BIT(8),
2154 WIPHY_FLAG_MESH_AUTH = BIT(10),
2155 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
2156 /* use hole at 12 */
2157 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
2158 WIPHY_FLAG_AP_UAPSD = BIT(14),
2159 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
2160 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
2161 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
2162 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
2163 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
2164 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
2165 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
2169 * struct ieee80211_iface_limit - limit on certain interface types
2170 * @max: maximum number of interfaces of these types
2171 * @types: interface types (bits)
2173 struct ieee80211_iface_limit {
2179 * struct ieee80211_iface_combination - possible interface combination
2180 * @limits: limits for the given interface types
2181 * @n_limits: number of limitations
2182 * @num_different_channels: can use up to this many different channels
2183 * @max_interfaces: maximum number of interfaces in total allowed in this
2185 * @beacon_int_infra_match: In this combination, the beacon intervals
2186 * between infrastructure and AP types must match. This is required
2187 * only in special cases.
2188 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2190 * These examples can be expressed as follows:
2192 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2194 * struct ieee80211_iface_limit limits1[] = {
2195 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2196 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2198 * struct ieee80211_iface_combination combination1 = {
2199 * .limits = limits1,
2200 * .n_limits = ARRAY_SIZE(limits1),
2201 * .max_interfaces = 2,
2202 * .beacon_int_infra_match = true,
2206 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2208 * struct ieee80211_iface_limit limits2[] = {
2209 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2210 * BIT(NL80211_IFTYPE_P2P_GO), },
2212 * struct ieee80211_iface_combination combination2 = {
2213 * .limits = limits2,
2214 * .n_limits = ARRAY_SIZE(limits2),
2215 * .max_interfaces = 8,
2216 * .num_different_channels = 1,
2220 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2221 * This allows for an infrastructure connection and three P2P connections.
2223 * struct ieee80211_iface_limit limits3[] = {
2224 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2225 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2226 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2228 * struct ieee80211_iface_combination combination3 = {
2229 * .limits = limits3,
2230 * .n_limits = ARRAY_SIZE(limits3),
2231 * .max_interfaces = 4,
2232 * .num_different_channels = 2,
2235 struct ieee80211_iface_combination {
2236 const struct ieee80211_iface_limit *limits;
2237 u32 num_different_channels;
2240 bool beacon_int_infra_match;
2241 u8 radar_detect_widths;
2244 struct ieee80211_txrx_stypes {
2249 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2250 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2251 * trigger that keeps the device operating as-is and
2252 * wakes up the host on any activity, for example a
2253 * received packet that passed filtering; note that the
2254 * packet should be preserved in that case
2255 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2257 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2258 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2259 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2260 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2261 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2262 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2264 enum wiphy_wowlan_support_flags {
2265 WIPHY_WOWLAN_ANY = BIT(0),
2266 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
2267 WIPHY_WOWLAN_DISCONNECT = BIT(2),
2268 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
2269 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
2270 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
2271 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
2272 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
2276 * struct wiphy_wowlan_support - WoWLAN support data
2277 * @flags: see &enum wiphy_wowlan_support_flags
2278 * @n_patterns: number of supported wakeup patterns
2279 * (see nl80211.h for the pattern definition)
2280 * @pattern_max_len: maximum length of each pattern
2281 * @pattern_min_len: minimum length of each pattern
2283 struct wiphy_wowlan_support {
2286 int pattern_max_len;
2287 int pattern_min_len;
2291 * struct wiphy - wireless hardware description
2292 * @reg_notifier: the driver's regulatory notification callback,
2293 * note that if your driver uses wiphy_apply_custom_regulatory()
2294 * the reg_notifier's request can be passed as NULL
2295 * @regd: the driver's regulatory domain, if one was requested via
2296 * the regulatory_hint() API. This can be used by the driver
2297 * on the reg_notifier() if it chooses to ignore future
2298 * regulatory domain changes caused by other drivers.
2299 * @signal_type: signal type reported in &struct cfg80211_bss.
2300 * @cipher_suites: supported cipher suites
2301 * @n_cipher_suites: number of supported cipher suites
2302 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2303 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2304 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2305 * -1 = fragmentation disabled, only odd values >= 256 used
2306 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2307 * @_net: the network namespace this wiphy currently lives in
2308 * @perm_addr: permanent MAC address of this device
2309 * @addr_mask: If the device supports multiple MAC addresses by masking,
2310 * set this to a mask with variable bits set to 1, e.g. if the last
2311 * four bits are variable then set it to 00:...:00:0f. The actual
2312 * variable bits shall be determined by the interfaces added, with
2313 * interfaces not matching the mask being rejected to be brought up.
2314 * @n_addresses: number of addresses in @addresses.
2315 * @addresses: If the device has more than one address, set this pointer
2316 * to a list of addresses (6 bytes each). The first one will be used
2317 * by default for perm_addr. In this case, the mask should be set to
2318 * all-zeroes. In this case it is assumed that the device can handle
2319 * the same number of arbitrary MAC addresses.
2320 * @registered: protects ->resume and ->suspend sysfs callbacks against
2321 * unregister hardware
2322 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2323 * automatically on wiphy renames
2324 * @dev: (virtual) struct device for this wiphy
2325 * @registered: helps synchronize suspend/resume with wiphy unregister
2326 * @wext: wireless extension handlers
2327 * @priv: driver private data (sized according to wiphy_new() parameter)
2328 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2329 * must be set by driver
2330 * @iface_combinations: Valid interface combinations array, should not
2331 * list single interface types.
2332 * @n_iface_combinations: number of entries in @iface_combinations array.
2333 * @software_iftypes: bitmask of software interface types, these are not
2334 * subject to any restrictions since they are purely managed in SW.
2335 * @flags: wiphy flags, see &enum wiphy_flags
2336 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2337 * @bss_priv_size: each BSS struct has private data allocated with it,
2338 * this variable determines its size
2339 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2341 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2342 * for in any given scheduled scan
2343 * @max_match_sets: maximum number of match sets the device can handle
2344 * when performing a scheduled scan, 0 if filtering is not
2346 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2347 * add to probe request frames transmitted during a scan, must not
2348 * include fixed IEs like supported rates
2349 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2351 * @coverage_class: current coverage class
2352 * @fw_version: firmware version for ethtool reporting
2353 * @hw_version: hardware version for ethtool reporting
2354 * @max_num_pmkids: maximum number of PMKIDs supported by device
2355 * @privid: a pointer that drivers can use to identify if an arbitrary
2356 * wiphy is theirs, e.g. in global notifiers
2357 * @bands: information about bands/channels supported by this device
2359 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2360 * transmitted through nl80211, points to an array indexed by interface
2363 * @available_antennas_tx: bitmap of antennas which are available to be
2364 * configured as TX antennas. Antenna configuration commands will be
2365 * rejected unless this or @available_antennas_rx is set.
2367 * @available_antennas_rx: bitmap of antennas which are available to be
2368 * configured as RX antennas. Antenna configuration commands will be
2369 * rejected unless this or @available_antennas_tx is set.
2371 * @probe_resp_offload:
2372 * Bitmap of supported protocols for probe response offloading.
2373 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2374 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2376 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2377 * may request, if implemented.
2379 * @wowlan: WoWLAN support information
2381 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2382 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2383 * If null, then none can be over-ridden.
2385 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
2389 /* assign these fields before you register the wiphy */
2391 /* permanent MAC address(es) */
2392 u8 perm_addr[ETH_ALEN];
2393 u8 addr_mask[ETH_ALEN];
2395 struct mac_address *addresses;
2397 const struct ieee80211_txrx_stypes *mgmt_stypes;
2399 const struct ieee80211_iface_combination *iface_combinations;
2400 int n_iface_combinations;
2401 u16 software_iftypes;
2405 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2406 u16 interface_modes;
2408 u16 max_acl_mac_addrs;
2410 u32 flags, features;
2414 enum cfg80211_signal_type signal_type;
2418 u8 max_sched_scan_ssids;
2420 u16 max_scan_ie_len;
2421 u16 max_sched_scan_ie_len;
2423 int n_cipher_suites;
2424 const u32 *cipher_suites;
2432 char fw_version[ETHTOOL_BUSINFO_LEN];
2436 struct wiphy_wowlan_support wowlan;
2439 u16 max_remain_on_channel_duration;
2443 u32 available_antennas_tx;
2444 u32 available_antennas_rx;
2447 * Bitmap of supported protocols for probe response offloading
2448 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2449 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2451 u32 probe_resp_offload;
2453 /* If multiple wiphys are registered and you're handed e.g.
2454 * a regular netdev with assigned ieee80211_ptr, you won't
2455 * know whether it points to a wiphy your driver has registered
2456 * or not. Assign this to something global to your driver to
2457 * help determine whether you own this wiphy or not. */
2460 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
2462 /* Lets us get back the wiphy on the callback */
2463 void (*reg_notifier)(struct wiphy *wiphy,
2464 struct regulatory_request *request);
2466 /* fields below are read-only, assigned by cfg80211 */
2468 const struct ieee80211_regdomain __rcu *regd;
2470 /* the item in /sys/class/ieee80211/ points to this,
2471 * you need use set_wiphy_dev() (see below) */
2474 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2477 /* dir in debugfs: ieee80211/<wiphyname> */
2478 struct dentry *debugfsdir;
2480 const struct ieee80211_ht_cap *ht_capa_mod_mask;
2482 #ifdef CONFIG_NET_NS
2483 /* the network namespace this phy lives in currently */
2487 #ifdef CONFIG_CFG80211_WEXT
2488 const struct iw_handler_def *wext;
2491 char priv[0] __aligned(NETDEV_ALIGN);
2494 static inline struct net *wiphy_net(struct wiphy *wiphy)
2496 return read_pnet(&wiphy->_net);
2499 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
2501 write_pnet(&wiphy->_net, net);
2505 * wiphy_priv - return priv from wiphy
2507 * @wiphy: the wiphy whose priv pointer to return
2508 * Return: The priv of @wiphy.
2510 static inline void *wiphy_priv(struct wiphy *wiphy)
2513 return &wiphy->priv;
2517 * priv_to_wiphy - return the wiphy containing the priv
2519 * @priv: a pointer previously returned by wiphy_priv
2520 * Return: The wiphy of @priv.
2522 static inline struct wiphy *priv_to_wiphy(void *priv)
2525 return container_of(priv, struct wiphy, priv);
2529 * set_wiphy_dev - set device pointer for wiphy
2531 * @wiphy: The wiphy whose device to bind
2532 * @dev: The device to parent it to
2534 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
2536 wiphy->dev.parent = dev;
2540 * wiphy_dev - get wiphy dev pointer
2542 * @wiphy: The wiphy whose device struct to look up
2543 * Return: The dev of @wiphy.
2545 static inline struct device *wiphy_dev(struct wiphy *wiphy)
2547 return wiphy->dev.parent;
2551 * wiphy_name - get wiphy name
2553 * @wiphy: The wiphy whose name to return
2554 * Return: The name of @wiphy.
2556 static inline const char *wiphy_name(const struct wiphy *wiphy)
2558 return dev_name(&wiphy->dev);
2562 * wiphy_new - create a new wiphy for use with cfg80211
2564 * @ops: The configuration operations for this device
2565 * @sizeof_priv: The size of the private area to allocate
2567 * Create a new wiphy and associate the given operations with it.
2568 * @sizeof_priv bytes are allocated for private use.
2570 * Return: A pointer to the new wiphy. This pointer must be
2571 * assigned to each netdev's ieee80211_ptr for proper operation.
2573 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
2576 * wiphy_register - register a wiphy with cfg80211
2578 * @wiphy: The wiphy to register.
2580 * Return: A non-negative wiphy index or a negative error code.
2582 extern int wiphy_register(struct wiphy *wiphy);
2585 * wiphy_unregister - deregister a wiphy from cfg80211
2587 * @wiphy: The wiphy to unregister.
2589 * After this call, no more requests can be made with this priv
2590 * pointer, but the call may sleep to wait for an outstanding
2591 * request that is being handled.
2593 extern void wiphy_unregister(struct wiphy *wiphy);
2596 * wiphy_free - free wiphy
2598 * @wiphy: The wiphy to free
2600 extern void wiphy_free(struct wiphy *wiphy);
2602 /* internal structs */
2603 struct cfg80211_conn;
2604 struct cfg80211_internal_bss;
2605 struct cfg80211_cached_keys;
2608 * struct wireless_dev - wireless device state
2610 * For netdevs, this structure must be allocated by the driver
2611 * that uses the ieee80211_ptr field in struct net_device (this
2612 * is intentional so it can be allocated along with the netdev.)
2613 * It need not be registered then as netdev registration will
2614 * be intercepted by cfg80211 to see the new wireless device.
2616 * For non-netdev uses, it must also be allocated by the driver
2617 * in response to the cfg80211 callbacks that require it, as
2618 * there's no netdev registration in that case it may not be
2619 * allocated outside of callback operations that return it.
2621 * @wiphy: pointer to hardware description
2622 * @iftype: interface type
2623 * @list: (private) Used to collect the interfaces
2624 * @netdev: (private) Used to reference back to the netdev, may be %NULL
2625 * @identifier: (private) Identifier used in nl80211 to identify this
2626 * wireless device if it has no netdev
2627 * @current_bss: (private) Used by the internal configuration code
2628 * @channel: (private) Used by the internal configuration code to track
2629 * the user-set AP, monitor and WDS channel
2630 * @preset_chan: (private) Used by the internal configuration code to
2631 * track the channel to be used for AP later
2632 * @preset_chantype: (private) the corresponding channel type
2633 * @bssid: (private) Used by the internal configuration code
2634 * @ssid: (private) Used by the internal configuration code
2635 * @ssid_len: (private) Used by the internal configuration code
2636 * @mesh_id_len: (private) Used by the internal configuration code
2637 * @mesh_id_up_len: (private) Used by the internal configuration code
2638 * @wext: (private) Used by the internal wireless extensions compat code
2639 * @use_4addr: indicates 4addr mode is used on this interface, must be
2640 * set by driver (if supported) on add_interface BEFORE registering the
2641 * netdev and may otherwise be used by driver read-only, will be update
2642 * by cfg80211 on change_interface
2643 * @mgmt_registrations: list of registrations for management frames
2644 * @mgmt_registrations_lock: lock for the list
2645 * @mtx: mutex used to lock data in this struct
2646 * @cleanup_work: work struct used for cleanup that can't be done directly
2647 * @beacon_interval: beacon interval used on this device for transmitting
2648 * beacons, 0 when not valid
2649 * @address: The address for this device, valid only if @netdev is %NULL
2650 * @p2p_started: true if this is a P2P Device that has been started
2652 struct wireless_dev {
2653 struct wiphy *wiphy;
2654 enum nl80211_iftype iftype;
2656 /* the remainder of this struct should be private to cfg80211 */
2657 struct list_head list;
2658 struct net_device *netdev;
2662 struct list_head mgmt_registrations;
2663 spinlock_t mgmt_registrations_lock;
2667 struct work_struct cleanup_work;
2669 bool use_4addr, p2p_started;
2671 u8 address[ETH_ALEN] __aligned(sizeof(u16));
2673 /* currently used for IBSS and SME - might be rearranged later */
2674 u8 ssid[IEEE80211_MAX_SSID_LEN];
2675 u8 ssid_len, mesh_id_len, mesh_id_up_len;
2678 CFG80211_SME_CONNECTING,
2679 CFG80211_SME_CONNECTED,
2681 struct cfg80211_conn *conn;
2682 struct cfg80211_cached_keys *connect_keys;
2684 struct list_head event_list;
2685 spinlock_t event_lock;
2687 struct cfg80211_internal_bss *current_bss; /* associated / joined */
2688 struct cfg80211_chan_def preset_chandef;
2690 /* for AP and mesh channel tracking */
2691 struct ieee80211_channel *channel;
2698 int beacon_interval;
2700 u32 ap_unexpected_nlportid;
2702 #ifdef CONFIG_CFG80211_WEXT
2705 struct cfg80211_ibss_params ibss;
2706 struct cfg80211_connect_params connect;
2707 struct cfg80211_cached_keys *keys;
2710 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2711 u8 ssid[IEEE80211_MAX_SSID_LEN];
2712 s8 default_key, default_mgmt_key;
2713 bool prev_bssid_valid;
2718 static inline u8 *wdev_address(struct wireless_dev *wdev)
2721 return wdev->netdev->dev_addr;
2722 return wdev->address;
2726 * wdev_priv - return wiphy priv from wireless_dev
2728 * @wdev: The wireless device whose wiphy's priv pointer to return
2729 * Return: The wiphy priv of @wdev.
2731 static inline void *wdev_priv(struct wireless_dev *wdev)
2734 return wiphy_priv(wdev->wiphy);
2738 * DOC: Utility functions
2740 * cfg80211 offers a number of utility functions that can be useful.
2744 * ieee80211_channel_to_frequency - convert channel number to frequency
2745 * @chan: channel number
2746 * @band: band, necessary due to channel number overlap
2747 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
2749 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
2752 * ieee80211_frequency_to_channel - convert frequency to channel number
2753 * @freq: center frequency
2754 * Return: The corresponding channel, or 0 if the conversion failed.
2756 extern int ieee80211_frequency_to_channel(int freq);
2759 * Name indirection necessary because the ieee80211 code also has
2760 * a function named "ieee80211_get_channel", so if you include
2761 * cfg80211's header file you get cfg80211's version, if you try
2762 * to include both header files you'll (rightfully!) get a symbol
2765 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
2768 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2769 * @wiphy: the struct wiphy to get the channel for
2770 * @freq: the center frequency of the channel
2771 * Return: The channel struct from @wiphy at @freq.
2773 static inline struct ieee80211_channel *
2774 ieee80211_get_channel(struct wiphy *wiphy, int freq)
2776 return __ieee80211_get_channel(wiphy, freq);
2780 * ieee80211_get_response_rate - get basic rate for a given rate
2782 * @sband: the band to look for rates in
2783 * @basic_rates: bitmap of basic rates
2784 * @bitrate: the bitrate for which to find the basic rate
2786 * Return: The basic rate corresponding to a given bitrate, that
2787 * is the next lower bitrate contained in the basic rate map,
2788 * which is, for this function, given as a bitmap of indices of
2789 * rates in the band's bitrate table.
2791 struct ieee80211_rate *
2792 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
2793 u32 basic_rates, int bitrate);
2796 * Radiotap parsing functions -- for controlled injection support
2798 * Implemented in net/wireless/radiotap.c
2799 * Documentation in Documentation/networking/radiotap-headers.txt
2802 struct radiotap_align_size {
2803 uint8_t align:4, size:4;
2806 struct ieee80211_radiotap_namespace {
2807 const struct radiotap_align_size *align_size;
2813 struct ieee80211_radiotap_vendor_namespaces {
2814 const struct ieee80211_radiotap_namespace *ns;
2819 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2820 * @this_arg_index: index of current arg, valid after each successful call
2821 * to ieee80211_radiotap_iterator_next()
2822 * @this_arg: pointer to current radiotap arg; it is valid after each
2823 * call to ieee80211_radiotap_iterator_next() but also after
2824 * ieee80211_radiotap_iterator_init() where it will point to
2825 * the beginning of the actual data portion
2826 * @this_arg_size: length of the current arg, for convenience
2827 * @current_namespace: pointer to the current namespace definition
2828 * (or internally %NULL if the current namespace is unknown)
2829 * @is_radiotap_ns: indicates whether the current namespace is the default
2830 * radiotap namespace or not
2832 * @_rtheader: pointer to the radiotap header we are walking through
2833 * @_max_length: length of radiotap header in cpu byte ordering
2834 * @_arg_index: next argument index
2835 * @_arg: next argument pointer
2836 * @_next_bitmap: internal pointer to next present u32
2837 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2838 * @_vns: vendor namespace definitions
2839 * @_next_ns_data: beginning of the next namespace's data
2840 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2843 * Describes the radiotap parser state. Fields prefixed with an underscore
2844 * must not be used by users of the parser, only by the parser internally.
2847 struct ieee80211_radiotap_iterator {
2848 struct ieee80211_radiotap_header *_rtheader;
2849 const struct ieee80211_radiotap_vendor_namespaces *_vns;
2850 const struct ieee80211_radiotap_namespace *current_namespace;
2852 unsigned char *_arg, *_next_ns_data;
2853 __le32 *_next_bitmap;
2855 unsigned char *this_arg;
2863 uint32_t _bitmap_shifter;
2867 extern int ieee80211_radiotap_iterator_init(
2868 struct ieee80211_radiotap_iterator *iterator,
2869 struct ieee80211_radiotap_header *radiotap_header,
2870 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
2872 extern int ieee80211_radiotap_iterator_next(
2873 struct ieee80211_radiotap_iterator *iterator);
2876 extern const unsigned char rfc1042_header[6];
2877 extern const unsigned char bridge_tunnel_header[6];
2880 * ieee80211_get_hdrlen_from_skb - get header length from data
2884 * Given an skb with a raw 802.11 header at the data pointer this function
2885 * returns the 802.11 header length.
2887 * Return: The 802.11 header length in bytes (not including encryption
2888 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
2891 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
2894 * ieee80211_hdrlen - get header length in bytes from frame control
2895 * @fc: frame control field in little-endian format
2896 * Return: The header length in bytes.
2898 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2901 * ieee80211_get_mesh_hdrlen - get mesh extension header length
2902 * @meshhdr: the mesh extension header, only the flags field
2903 * (first byte) will be accessed
2904 * Return: The length of the extension header, which is always at
2905 * least 6 bytes and at most 18 if address 5 and 6 are present.
2907 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
2910 * DOC: Data path helpers
2912 * In addition to generic utilities, cfg80211 also offers
2913 * functions that help implement the data path for devices
2914 * that do not do the 802.11/802.3 conversion on the device.
2918 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2919 * @skb: the 802.11 data frame
2920 * @addr: the device MAC address
2921 * @iftype: the virtual interface type
2922 * Return: 0 on success. Non-zero on error.
2924 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2925 enum nl80211_iftype iftype);
2928 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2929 * @skb: the 802.3 frame
2930 * @addr: the device MAC address
2931 * @iftype: the virtual interface type
2932 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2933 * @qos: build 802.11 QoS data frame
2934 * Return: 0 on success, or a negative error code.
2936 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2937 enum nl80211_iftype iftype, u8 *bssid, bool qos);
2940 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2942 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2943 * 802.3 frames. The @list will be empty if the decode fails. The
2944 * @skb is consumed after the function returns.
2946 * @skb: The input IEEE 802.11n A-MSDU frame.
2947 * @list: The output list of 802.3 frames. It must be allocated and
2948 * initialized by by the caller.
2949 * @addr: The device MAC address.
2950 * @iftype: The device interface type.
2951 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2952 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2954 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
2955 const u8 *addr, enum nl80211_iftype iftype,
2956 const unsigned int extra_headroom,
2957 bool has_80211_header);
2960 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2961 * @skb: the data frame
2962 * Return: The 802.1p/1d tag.
2964 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
2967 * cfg80211_find_ie - find information element in data
2970 * @ies: data consisting of IEs
2971 * @len: length of data
2973 * Return: %NULL if the element ID could not be found or if
2974 * the element is invalid (claims to be longer than the given
2975 * data), or a pointer to the first byte of the requested
2976 * element, that is the byte containing the element ID.
2978 * Note: There are no checks on the element length other than
2979 * having to fit into the given data.
2981 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
2984 * cfg80211_find_vendor_ie - find vendor specific information element in data
2987 * @oui_type: vendor-specific OUI type
2988 * @ies: data consisting of IEs
2989 * @len: length of data
2991 * Return: %NULL if the vendor specific element ID could not be found or if the
2992 * element is invalid (claims to be longer than the given data), or a pointer to
2993 * the first byte of the requested element, that is the byte containing the
2996 * Note: There are no checks on the element length other than having to fit into
2999 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
3000 const u8 *ies, int len);
3003 * DOC: Regulatory enforcement infrastructure
3009 * regulatory_hint - driver hint to the wireless core a regulatory domain
3010 * @wiphy: the wireless device giving the hint (used only for reporting
3012 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3013 * should be in. If @rd is set this should be NULL. Note that if you
3014 * set this to NULL you should still set rd->alpha2 to some accepted
3017 * Wireless drivers can use this function to hint to the wireless core
3018 * what it believes should be the current regulatory domain by
3019 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3020 * domain should be in or by providing a completely build regulatory domain.
3021 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3022 * for a regulatory domain structure for the respective country.
3024 * The wiphy must have been registered to cfg80211 prior to this call.
3025 * For cfg80211 drivers this means you must first use wiphy_register(),
3026 * for mac80211 drivers you must first use ieee80211_register_hw().
3028 * Drivers should check the return value, its possible you can get
3031 * Return: 0 on success. -ENOMEM.
3033 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
3036 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3037 * @wiphy: the wireless device we want to process the regulatory domain on
3038 * @regd: the custom regulatory domain to use for this wiphy
3040 * Drivers can sometimes have custom regulatory domains which do not apply
3041 * to a specific country. Drivers can use this to apply such custom regulatory
3042 * domains. This routine must be called prior to wiphy registration. The
3043 * custom regulatory domain will be trusted completely and as such previous
3044 * default channel settings will be disregarded. If no rule is found for a
3045 * channel on the regulatory domain the channel will be disabled.
3047 extern void wiphy_apply_custom_regulatory(
3048 struct wiphy *wiphy,
3049 const struct ieee80211_regdomain *regd);
3052 * freq_reg_info - get regulatory information for the given frequency
3053 * @wiphy: the wiphy for which we want to process this rule for
3054 * @center_freq: Frequency in KHz for which we want regulatory information for
3056 * Use this function to get the regulatory rule for a specific frequency on
3057 * a given wireless device. If the device has a specific regulatory domain
3058 * it wants to follow we respect that unless a country IE has been received
3059 * and processed already.
3061 * Return: A valid pointer, or, when an error occurs, for example if no rule
3062 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3063 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3064 * value will be -ERANGE if we determine the given center_freq does not even
3065 * have a regulatory rule for a frequency range in the center_freq's band.
3066 * See freq_in_rule_band() for our current definition of a band -- this is
3067 * purely subjective and right now it's 802.11 specific.
3069 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
3073 * callbacks for asynchronous cfg80211 methods, notification
3074 * functions and BSS handling helpers
3078 * cfg80211_scan_done - notify that scan finished
3080 * @request: the corresponding scan request
3081 * @aborted: set to true if the scan was aborted for any reason,
3082 * userspace will be notified of that
3084 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
3087 * cfg80211_sched_scan_results - notify that new scan results are available
3089 * @wiphy: the wiphy which got scheduled scan results
3091 void cfg80211_sched_scan_results(struct wiphy *wiphy);
3094 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3096 * @wiphy: the wiphy on which the scheduled scan stopped
3098 * The driver can call this function to inform cfg80211 that the
3099 * scheduled scan had to be stopped, for whatever reason. The driver
3100 * is then called back via the sched_scan_stop operation when done.
3102 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
3105 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
3107 * @wiphy: the wiphy reporting the BSS
3108 * @channel: The channel the frame was received on
3109 * @mgmt: the management frame (probe response or beacon)
3110 * @len: length of the management frame
3111 * @signal: the signal strength, type depends on the wiphy's signal_type
3112 * @gfp: context flags
3114 * This informs cfg80211 that BSS information was found and
3115 * the BSS should be updated/added.
3117 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3118 * Or %NULL on error.
3120 struct cfg80211_bss * __must_check
3121 cfg80211_inform_bss_frame(struct wiphy *wiphy,
3122 struct ieee80211_channel *channel,
3123 struct ieee80211_mgmt *mgmt, size_t len,
3124 s32 signal, gfp_t gfp);
3127 * cfg80211_inform_bss - inform cfg80211 of a new BSS
3129 * @wiphy: the wiphy reporting the BSS
3130 * @channel: The channel the frame was received on
3131 * @bssid: the BSSID of the BSS
3132 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3133 * @capability: the capability field sent by the peer
3134 * @beacon_interval: the beacon interval announced by the peer
3135 * @ie: additional IEs sent by the peer
3136 * @ielen: length of the additional IEs
3137 * @signal: the signal strength, type depends on the wiphy's signal_type
3138 * @gfp: context flags
3140 * This informs cfg80211 that BSS information was found and
3141 * the BSS should be updated/added.
3143 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3144 * Or %NULL on error.
3146 struct cfg80211_bss * __must_check
3147 cfg80211_inform_bss(struct wiphy *wiphy,
3148 struct ieee80211_channel *channel,
3149 const u8 *bssid, u64 tsf, u16 capability,
3150 u16 beacon_interval, const u8 *ie, size_t ielen,
3151 s32 signal, gfp_t gfp);
3153 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
3154 struct ieee80211_channel *channel,
3156 const u8 *ssid, size_t ssid_len,
3157 u16 capa_mask, u16 capa_val);
3158 static inline struct cfg80211_bss *
3159 cfg80211_get_ibss(struct wiphy *wiphy,
3160 struct ieee80211_channel *channel,
3161 const u8 *ssid, size_t ssid_len)
3163 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
3164 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
3168 * cfg80211_ref_bss - reference BSS struct
3169 * @wiphy: the wiphy this BSS struct belongs to
3170 * @bss: the BSS struct to reference
3172 * Increments the refcount of the given BSS struct.
3174 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
3177 * cfg80211_put_bss - unref BSS struct
3178 * @wiphy: the wiphy this BSS struct belongs to
3179 * @bss: the BSS struct
3181 * Decrements the refcount of the given BSS struct.
3183 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
3186 * cfg80211_unlink_bss - unlink BSS from internal data structures
3188 * @bss: the bss to remove
3190 * This function removes the given BSS from the internal data structures
3191 * thereby making it no longer show up in scan results etc. Use this
3192 * function when you detect a BSS is gone. Normally BSSes will also time
3193 * out, so it is not necessary to use this function at all.
3195 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
3198 * cfg80211_send_rx_auth - notification of processed authentication
3199 * @dev: network device
3200 * @buf: authentication frame (header + body)
3201 * @len: length of the frame data
3203 * This function is called whenever an authentication has been processed in
3204 * station mode. The driver is required to call either this function or
3205 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
3206 * call. This function may sleep.
3208 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
3211 * cfg80211_send_auth_timeout - notification of timed out authentication
3212 * @dev: network device
3213 * @addr: The MAC address of the device with which the authentication timed out
3215 * This function may sleep.
3217 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
3220 * cfg80211_send_rx_assoc - notification of processed association
3221 * @dev: network device
3222 * @bss: the BSS struct association was requested for, the struct reference
3223 * is owned by cfg80211 after this call
3224 * @buf: (re)association response frame (header + body)
3225 * @len: length of the frame data
3227 * This function is called whenever a (re)association response has been
3228 * processed in station mode. The driver is required to call either this
3229 * function or cfg80211_send_assoc_timeout() to indicate the result of
3230 * cfg80211_ops::assoc() call. This function may sleep.
3232 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
3233 const u8 *buf, size_t len);
3236 * cfg80211_send_assoc_timeout - notification of timed out association
3237 * @dev: network device
3238 * @addr: The MAC address of the device with which the association timed out
3240 * This function may sleep.
3242 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
3245 * cfg80211_send_deauth - notification of processed deauthentication
3246 * @dev: network device
3247 * @buf: deauthentication frame (header + body)
3248 * @len: length of the frame data
3250 * This function is called whenever deauthentication has been processed in
3251 * station mode. This includes both received deauthentication frames and
3252 * locally generated ones. This function may sleep.
3254 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
3257 * __cfg80211_send_deauth - notification of processed deauthentication
3258 * @dev: network device
3259 * @buf: deauthentication frame (header + body)
3260 * @len: length of the frame data
3262 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
3264 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
3267 * cfg80211_send_disassoc - notification of processed disassociation
3268 * @dev: network device
3269 * @buf: disassociation response frame (header + body)
3270 * @len: length of the frame data
3272 * This function is called whenever disassociation has been processed in
3273 * station mode. This includes both received disassociation frames and locally
3274 * generated ones. This function may sleep.
3276 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
3279 * __cfg80211_send_disassoc - notification of processed disassociation
3280 * @dev: network device
3281 * @buf: disassociation response frame (header + body)
3282 * @len: length of the frame data
3284 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
3286 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
3290 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
3291 * @dev: network device
3292 * @buf: deauthentication frame (header + body)
3293 * @len: length of the frame data
3295 * This function is called whenever a received Deauthentication frame has been
3296 * dropped in station mode because of MFP being used but the Deauthentication
3297 * frame was not protected. This function may sleep.
3299 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
3303 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
3304 * @dev: network device
3305 * @buf: disassociation frame (header + body)
3306 * @len: length of the frame data
3308 * This function is called whenever a received Disassociation frame has been
3309 * dropped in station mode because of MFP being used but the Disassociation
3310 * frame was not protected. This function may sleep.
3312 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
3316 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3317 * @dev: network device
3318 * @addr: The source MAC address of the frame
3319 * @key_type: The key type that the received frame used
3320 * @key_id: Key identifier (0..3). Can be -1 if missing.
3321 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3322 * @gfp: allocation flags
3324 * This function is called whenever the local MAC detects a MIC failure in a
3325 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3328 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
3329 enum nl80211_key_type key_type, int key_id,
3330 const u8 *tsc, gfp_t gfp);
3333 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3335 * @dev: network device
3336 * @bssid: the BSSID of the IBSS joined
3337 * @gfp: allocation flags
3339 * This function notifies cfg80211 that the device joined an IBSS or
3340 * switched to a different BSSID. Before this function can be called,
3341 * either a beacon has to have been received from the IBSS, or one of
3342 * the cfg80211_inform_bss{,_frame} functions must have been called
3343 * with the locally generated beacon -- this guarantees that there is
3344 * always a scan result for this IBSS. cfg80211 will handle the rest.
3346 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
3349 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3351 * @dev: network device
3352 * @macaddr: the MAC address of the new candidate
3353 * @ie: information elements advertised by the peer candidate
3354 * @ie_len: lenght of the information elements buffer
3355 * @gfp: allocation flags
3357 * This function notifies cfg80211 that the mesh peer candidate has been
3358 * detected, most likely via a beacon or, less likely, via a probe response.
3359 * cfg80211 then sends a notification to userspace.
3361 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
3362 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
3365 * DOC: RFkill integration
3367 * RFkill integration in cfg80211 is almost invisible to drivers,
3368 * as cfg80211 automatically registers an rfkill instance for each
3369 * wireless device it knows about. Soft kill is also translated
3370 * into disconnecting and turning all interfaces off, drivers are
3371 * expected to turn off the device when all interfaces are down.
3373 * However, devices may have a hard RFkill line, in which case they
3374 * also need to interact with the rfkill subsystem, via cfg80211.
3375 * They can do this with a few helper functions documented here.
3379 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3381 * @blocked: block status
3383 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
3386 * wiphy_rfkill_start_polling - start polling rfkill
3389 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
3392 * wiphy_rfkill_stop_polling - stop polling rfkill
3395 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
3397 #ifdef CONFIG_NL80211_TESTMODE
3401 * Test mode is a set of utility functions to allow drivers to
3402 * interact with driver-specific tools to aid, for instance,
3403 * factory programming.
3405 * This chapter describes how drivers interact with it, for more
3406 * information see the nl80211 book's chapter on it.
3410 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3412 * @approxlen: an upper bound of the length of the data that will
3413 * be put into the skb
3415 * This function allocates and pre-fills an skb for a reply to
3416 * the testmode command. Since it is intended for a reply, calling
3417 * it outside of the @testmode_cmd operation is invalid.
3419 * The returned skb is pre-filled with the wiphy index and set up in
3420 * a way that any data that is put into the skb (with skb_put(),
3421 * nla_put() or similar) will end up being within the
3422 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
3423 * with the skb is adding data for the corresponding userspace tool
3424 * which can then read that data out of the testdata attribute. You
3425 * must not modify the skb in any other way.
3427 * When done, call cfg80211_testmode_reply() with the skb and return
3428 * its error code as the result of the @testmode_cmd operation.
3430 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3432 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3436 * cfg80211_testmode_reply - send the reply skb
3437 * @skb: The skb, must have been allocated with
3438 * cfg80211_testmode_alloc_reply_skb()
3440 * Since calling this function will usually be the last thing
3441 * before returning from the @testmode_cmd you should return
3442 * the error code. Note that this function consumes the skb
3443 * regardless of the return value.
3445 * Return: An error code or 0 on success.
3447 int cfg80211_testmode_reply(struct sk_buff *skb);
3450 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3452 * @approxlen: an upper bound of the length of the data that will
3453 * be put into the skb
3454 * @gfp: allocation flags
3456 * This function allocates and pre-fills an skb for an event on the
3457 * testmode multicast group.
3459 * The returned skb is set up in the same way as with
3460 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
3461 * there, you should simply add data to it that will then end up in the
3462 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
3465 * When done filling the skb, call cfg80211_testmode_event() with the
3466 * skb to send the event.
3468 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3470 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3471 int approxlen, gfp_t gfp);
3474 * cfg80211_testmode_event - send the event
3475 * @skb: The skb, must have been allocated with
3476 * cfg80211_testmode_alloc_event_skb()
3477 * @gfp: allocation flags
3479 * This function sends the given @skb, which must have been allocated
3480 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3483 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
3485 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3486 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3488 #define CFG80211_TESTMODE_CMD(cmd)
3489 #define CFG80211_TESTMODE_DUMP(cmd)
3493 * cfg80211_connect_result - notify cfg80211 of connection result
3495 * @dev: network device
3496 * @bssid: the BSSID of the AP
3497 * @req_ie: association request IEs (maybe be %NULL)
3498 * @req_ie_len: association request IEs length
3499 * @resp_ie: association response IEs (may be %NULL)
3500 * @resp_ie_len: assoc response IEs length
3501 * @status: status code, 0 for successful connection, use
3502 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3503 * the real status code for failures.
3504 * @gfp: allocation flags
3506 * It should be called by the underlying driver whenever connect() has
3509 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
3510 const u8 *req_ie, size_t req_ie_len,
3511 const u8 *resp_ie, size_t resp_ie_len,
3512 u16 status, gfp_t gfp);
3515 * cfg80211_roamed - notify cfg80211 of roaming
3517 * @dev: network device
3518 * @channel: the channel of the new AP
3519 * @bssid: the BSSID of the new AP
3520 * @req_ie: association request IEs (maybe be %NULL)
3521 * @req_ie_len: association request IEs length
3522 * @resp_ie: association response IEs (may be %NULL)
3523 * @resp_ie_len: assoc response IEs length
3524 * @gfp: allocation flags
3526 * It should be called by the underlying driver whenever it roamed
3527 * from one AP to another while connected.
3529 void cfg80211_roamed(struct net_device *dev,
3530 struct ieee80211_channel *channel,
3532 const u8 *req_ie, size_t req_ie_len,
3533 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3536 * cfg80211_roamed_bss - notify cfg80211 of roaming
3538 * @dev: network device
3539 * @bss: entry of bss to which STA got roamed
3540 * @req_ie: association request IEs (maybe be %NULL)
3541 * @req_ie_len: association request IEs length
3542 * @resp_ie: association response IEs (may be %NULL)
3543 * @resp_ie_len: assoc response IEs length
3544 * @gfp: allocation flags
3546 * This is just a wrapper to notify cfg80211 of roaming event with driver
3547 * passing bss to avoid a race in timeout of the bss entry. It should be
3548 * called by the underlying driver whenever it roamed from one AP to another
3549 * while connected. Drivers which have roaming implemented in firmware
3550 * may use this function to avoid a race in bss entry timeout where the bss
3551 * entry of the new AP is seen in the driver, but gets timed out by the time
3552 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3553 * rdev->event_work. In case of any failures, the reference is released
3554 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3555 * it will be released while diconneting from the current bss.
3557 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
3558 const u8 *req_ie, size_t req_ie_len,
3559 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3562 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3564 * @dev: network device
3565 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3566 * @ie_len: length of IEs
3567 * @reason: reason code for the disconnection, set it to 0 if unknown
3568 * @gfp: allocation flags
3570 * After it calls this function, the driver should enter an idle state
3571 * and not try to connect to any AP any more.
3573 void cfg80211_disconnected(struct net_device *dev, u16 reason,
3574 u8 *ie, size_t ie_len, gfp_t gfp);
3577 * cfg80211_ready_on_channel - notification of remain_on_channel start
3578 * @wdev: wireless device
3579 * @cookie: the request cookie
3580 * @chan: The current channel (from remain_on_channel request)
3581 * @duration: Duration in milliseconds that the driver intents to remain on the
3583 * @gfp: allocation flags
3585 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
3586 struct ieee80211_channel *chan,
3587 unsigned int duration, gfp_t gfp);
3590 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3591 * @wdev: wireless device
3592 * @cookie: the request cookie
3593 * @chan: The current channel (from remain_on_channel request)
3594 * @gfp: allocation flags
3596 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
3597 struct ieee80211_channel *chan,
3602 * cfg80211_new_sta - notify userspace about station
3605 * @mac_addr: the station's address
3606 * @sinfo: the station information
3607 * @gfp: allocation flags
3609 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
3610 struct station_info *sinfo, gfp_t gfp);
3613 * cfg80211_del_sta - notify userspace about deletion of a station
3616 * @mac_addr: the station's address
3617 * @gfp: allocation flags
3619 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
3622 * cfg80211_conn_failed - connection request failed notification
3625 * @mac_addr: the station's address
3626 * @reason: the reason for connection failure
3627 * @gfp: allocation flags
3629 * Whenever a station tries to connect to an AP and if the station
3630 * could not connect to the AP as the AP has rejected the connection
3631 * for some reasons, this function is called.
3633 * The reason for connection failure can be any of the value from
3634 * nl80211_connect_failed_reason enum
3636 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
3637 enum nl80211_connect_failed_reason reason,
3641 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3642 * @wdev: wireless device receiving the frame
3643 * @freq: Frequency on which the frame was received in MHz
3644 * @sig_dbm: signal strength in mBm, or 0 if unknown
3645 * @buf: Management frame (header + body)
3646 * @len: length of the frame data
3647 * @gfp: context flags
3649 * This function is called whenever an Action frame is received for a station
3650 * mode interface, but is not processed in kernel.
3652 * Return: %true if a user space application has registered for this frame.
3653 * For action frames, that makes it responsible for rejecting unrecognized
3654 * action frames; %false otherwise, in which case for action frames the
3655 * driver is responsible for rejecting the frame.
3657 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
3658 const u8 *buf, size_t len, gfp_t gfp);
3661 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3662 * @wdev: wireless device receiving the frame
3663 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3664 * @buf: Management frame (header + body)
3665 * @len: length of the frame data
3666 * @ack: Whether frame was acknowledged
3667 * @gfp: context flags
3669 * This function is called whenever a management frame was requested to be
3670 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3671 * transmission attempt.
3673 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
3674 const u8 *buf, size_t len, bool ack, gfp_t gfp);
3678 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3679 * @dev: network device
3680 * @rssi_event: the triggered RSSI event
3681 * @gfp: context flags
3683 * This function is called when a configured connection quality monitoring
3684 * rssi threshold reached event occurs.
3686 void cfg80211_cqm_rssi_notify(struct net_device *dev,
3687 enum nl80211_cqm_rssi_threshold_event rssi_event,
3691 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3692 * @dev: network device
3693 * @peer: peer's MAC address
3694 * @num_packets: how many packets were lost -- should be a fixed threshold
3695 * but probably no less than maybe 50, or maybe a throughput dependent
3696 * threshold (to account for temporary interference)
3697 * @gfp: context flags
3699 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
3700 const u8 *peer, u32 num_packets, gfp_t gfp);
3703 * cfg80211_cqm_txe_notify - TX error rate event
3704 * @dev: network device
3705 * @peer: peer's MAC address
3706 * @num_packets: how many packets were lost
3707 * @rate: % of packets which failed transmission
3708 * @intvl: interval (in s) over which the TX failure threshold was breached.
3709 * @gfp: context flags
3711 * Notify userspace when configured % TX failures over number of packets in a
3712 * given interval is exceeded.
3714 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
3715 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
3718 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3719 * @dev: network device
3720 * @bssid: BSSID of AP (to avoid races)
3721 * @replay_ctr: new replay counter
3722 * @gfp: allocation flags
3724 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
3725 const u8 *replay_ctr, gfp_t gfp);
3728 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3729 * @dev: network device
3730 * @index: candidate index (the smaller the index, the higher the priority)
3731 * @bssid: BSSID of AP
3732 * @preauth: Whether AP advertises support for RSN pre-authentication
3733 * @gfp: allocation flags
3735 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
3736 const u8 *bssid, bool preauth, gfp_t gfp);
3739 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3740 * @dev: The device the frame matched to
3741 * @addr: the transmitter address
3742 * @gfp: context flags
3744 * This function is used in AP mode (only!) to inform userspace that
3745 * a spurious class 3 frame was received, to be able to deauth the
3747 * Return: %true if the frame was passed to userspace (or this failed
3748 * for a reason other than not having a subscription.)
3750 bool cfg80211_rx_spurious_frame(struct net_device *dev,
3751 const u8 *addr, gfp_t gfp);
3754 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3755 * @dev: The device the frame matched to
3756 * @addr: the transmitter address
3757 * @gfp: context flags
3759 * This function is used in AP mode (only!) to inform userspace that
3760 * an associated station sent a 4addr frame but that wasn't expected.
3761 * It is allowed and desirable to send this event only once for each
3762 * station to avoid event flooding.
3763 * Return: %true if the frame was passed to userspace (or this failed
3764 * for a reason other than not having a subscription.)
3766 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
3767 const u8 *addr, gfp_t gfp);
3770 * cfg80211_probe_status - notify userspace about probe status
3771 * @dev: the device the probe was sent on
3772 * @addr: the address of the peer
3773 * @cookie: the cookie filled in @probe_client previously
3774 * @acked: indicates whether probe was acked or not
3775 * @gfp: allocation flags
3777 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
3778 u64 cookie, bool acked, gfp_t gfp);
3781 * cfg80211_report_obss_beacon - report beacon from other APs
3782 * @wiphy: The wiphy that received the beacon
3784 * @len: length of the frame
3785 * @freq: frequency the frame was received on
3786 * @sig_dbm: signal strength in mBm, or 0 if unknown
3788 * Use this function to report to userspace when a beacon was
3789 * received. It is not useful to call this when there is no
3790 * netdev that is in AP/GO mode.
3792 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
3793 const u8 *frame, size_t len,
3794 int freq, int sig_dbm);
3797 * cfg80211_reg_can_beacon - check if beaconing is allowed
3799 * @chandef: the channel definition
3801 * Return: %true if there is no secondary channel or the secondary channel(s)
3802 * can be used for beaconing (i.e. is not a radar channel etc.)
3804 bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
3805 struct cfg80211_chan_def *chandef);
3808 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3809 * @dev: the device which switched channels
3810 * @chandef: the new channel definition
3812 * Acquires wdev_lock, so must only be called from sleepable driver context!
3814 void cfg80211_ch_switch_notify(struct net_device *dev,
3815 struct cfg80211_chan_def *chandef);
3818 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
3819 * @dev: the device on which the operation is requested
3820 * @peer: the MAC address of the peer device
3821 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
3822 * NL80211_TDLS_TEARDOWN)
3823 * @reason_code: the reason code for teardown request
3824 * @gfp: allocation flags
3826 * This function is used to request userspace to perform TDLS operation that
3827 * requires knowledge of keys, i.e., link setup or teardown when the AP
3828 * connection uses encryption. This is optional mechanism for the driver to use
3829 * if it can automatically determine when a TDLS link could be useful (e.g.,
3830 * based on traffic and signal strength for a peer).
3832 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
3833 enum nl80211_tdls_operation oper,
3834 u16 reason_code, gfp_t gfp);
3837 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3838 * @rate: given rate_info to calculate bitrate from
3840 * return 0 if MCS index >= 32
3842 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
3845 * cfg80211_unregister_wdev - remove the given wdev
3846 * @wdev: struct wireless_dev to remove
3848 * Call this function only for wdevs that have no netdev assigned,
3849 * e.g. P2P Devices. It removes the device from the list so that
3850 * it can no longer be used. It is necessary to call this function
3851 * even when cfg80211 requests the removal of the interface by
3852 * calling the del_virtual_intf() callback. The function must also
3853 * be called when the driver wishes to unregister the wdev, e.g.
3854 * when the device is unbound from the driver.
3856 * Requires the RTNL to be held.
3858 void cfg80211_unregister_wdev(struct wireless_dev *wdev);
3861 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
3862 * @ies: the input IE buffer
3863 * @len: the input length
3864 * @attr: the attribute ID to find
3865 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
3866 * if the function is only called to get the needed buffer size
3867 * @bufsize: size of the output buffer
3869 * The function finds a given P2P attribute in the (vendor) IEs and
3870 * copies its contents to the given buffer.
3872 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
3873 * malformed or the attribute can't be found (respectively), or the
3874 * length of the found attribute (which can be zero).
3876 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len,
3877 enum ieee80211_p2p_attr_id attr,
3878 u8 *buf, unsigned int bufsize);
3881 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
3882 * @wdev: the wireless device reporting the wakeup
3883 * @wakeup: the wakeup report
3884 * @gfp: allocation flags
3886 * This function reports that the given device woke up. If it
3887 * caused the wakeup, report the reason(s), otherwise you may
3888 * pass %NULL as the @wakeup parameter to advertise that something
3889 * else caused the wakeup.
3891 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
3892 struct cfg80211_wowlan_wakeup *wakeup,
3895 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3897 /* wiphy_printk helpers, similar to dev_printk */
3899 #define wiphy_printk(level, wiphy, format, args...) \
3900 dev_printk(level, &(wiphy)->dev, format, ##args)
3901 #define wiphy_emerg(wiphy, format, args...) \
3902 dev_emerg(&(wiphy)->dev, format, ##args)
3903 #define wiphy_alert(wiphy, format, args...) \
3904 dev_alert(&(wiphy)->dev, format, ##args)
3905 #define wiphy_crit(wiphy, format, args...) \
3906 dev_crit(&(wiphy)->dev, format, ##args)
3907 #define wiphy_err(wiphy, format, args...) \
3908 dev_err(&(wiphy)->dev, format, ##args)
3909 #define wiphy_warn(wiphy, format, args...) \
3910 dev_warn(&(wiphy)->dev, format, ##args)
3911 #define wiphy_notice(wiphy, format, args...) \
3912 dev_notice(&(wiphy)->dev, format, ##args)
3913 #define wiphy_info(wiphy, format, args...) \
3914 dev_info(&(wiphy)->dev, format, ##args)
3916 #define wiphy_debug(wiphy, format, args...) \
3917 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3919 #define wiphy_dbg(wiphy, format, args...) \
3920 dev_dbg(&(wiphy)->dev, format, ##args)
3922 #if defined(VERBOSE_DEBUG)
3923 #define wiphy_vdbg wiphy_dbg
3925 #define wiphy_vdbg(wiphy, format, args...) \
3928 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3934 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3935 * of using a WARN/WARN_ON to get the message out, including the
3936 * file/line information and a backtrace.
3938 #define wiphy_WARN(wiphy, format, args...) \
3939 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3941 #endif /* __NET_CFG80211_H */