1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2014 Intel Mobile Communications GmbH
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/netdevice.h>
15 #include <linux/debugfs.h>
16 #include <linux/list.h>
17 #include <linux/bug.h>
18 #include <linux/netlink.h>
19 #include <linux/skbuff.h>
20 #include <linux/nl80211.h>
21 #include <linux/if_ether.h>
22 #include <linux/ieee80211.h>
23 #include <linux/net.h>
24 #include <net/regulatory.h>
29 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
30 * userspace and drivers, and offers some utility functionality associated
31 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
32 * by all modern wireless drivers in Linux, so that they offer a consistent
33 * API through nl80211. For backward compatibility, cfg80211 also offers
34 * wireless extensions to userspace, but hides them from drivers completely.
36 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
42 * DOC: Device registration
44 * In order for a driver to use cfg80211, it must register the hardware device
45 * with cfg80211. This happens through a number of hardware capability structs
48 * The fundamental structure for each device is the 'wiphy', of which each
49 * instance describes a physical wireless device connected to the system. Each
50 * such wiphy can have zero, one, or many virtual interfaces associated with
51 * it, which need to be identified as such by pointing the network interface's
52 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
53 * the wireless part of the interface, normally this struct is embedded in the
54 * network interface's private data area. Drivers can optionally allow creating
55 * or destroying virtual interfaces on the fly, but without at least one or the
56 * ability to create some the wireless device isn't useful.
58 * Each wiphy structure contains device capability information, and also has
59 * a pointer to the various operations the driver offers. The definitions and
60 * structures here describe these capabilities in detail.
66 * wireless hardware capability structures
70 * enum ieee80211_band - supported frequency bands
72 * The bands are assigned this way because the supported
73 * bitrates differ in these bands.
75 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
76 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
77 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
78 * @IEEE80211_NUM_BANDS: number of defined bands
81 IEEE80211_BAND_2GHZ
= NL80211_BAND_2GHZ
,
82 IEEE80211_BAND_5GHZ
= NL80211_BAND_5GHZ
,
83 IEEE80211_BAND_60GHZ
= NL80211_BAND_60GHZ
,
90 * enum ieee80211_channel_flags - channel flags
92 * Channel flags set by the regulatory control code.
94 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
95 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
96 * sending probe requests or beaconing.
97 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
98 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
100 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
102 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
103 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
104 * this flag indicates that an 80 MHz channel cannot use this
105 * channel as the control or any of the secondary channels.
106 * This may be due to the driver or due to regulatory bandwidth
108 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
109 * this flag indicates that an 160 MHz channel cannot use this
110 * channel as the control or any of the secondary channels.
111 * This may be due to the driver or due to regulatory bandwidth
113 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
114 * @IEEE80211_CHAN_GO_CONCURRENT: see %NL80211_FREQUENCY_ATTR_GO_CONCURRENT
115 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
117 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
121 enum ieee80211_channel_flags
{
122 IEEE80211_CHAN_DISABLED
= 1<<0,
123 IEEE80211_CHAN_NO_IR
= 1<<1,
125 IEEE80211_CHAN_RADAR
= 1<<3,
126 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
127 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
128 IEEE80211_CHAN_NO_OFDM
= 1<<6,
129 IEEE80211_CHAN_NO_80MHZ
= 1<<7,
130 IEEE80211_CHAN_NO_160MHZ
= 1<<8,
131 IEEE80211_CHAN_INDOOR_ONLY
= 1<<9,
132 IEEE80211_CHAN_GO_CONCURRENT
= 1<<10,
133 IEEE80211_CHAN_NO_20MHZ
= 1<<11,
134 IEEE80211_CHAN_NO_10MHZ
= 1<<12,
137 #define IEEE80211_CHAN_NO_HT40 \
138 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
140 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
141 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
144 * struct ieee80211_channel - channel definition
146 * This structure describes a single channel for use
149 * @center_freq: center frequency in MHz
150 * @hw_value: hardware-specific value for the channel
151 * @flags: channel flags from &enum ieee80211_channel_flags.
152 * @orig_flags: channel flags at registration time, used by regulatory
153 * code to support devices with additional restrictions
154 * @band: band this channel belongs to.
155 * @max_antenna_gain: maximum antenna gain in dBi
156 * @max_power: maximum transmission power (in dBm)
157 * @max_reg_power: maximum regulatory transmission power (in dBm)
158 * @beacon_found: helper to regulatory code to indicate when a beacon
159 * has been found on this channel. Use regulatory_hint_found_beacon()
160 * to enable this, this is useful only on 5 GHz band.
161 * @orig_mag: internal use
162 * @orig_mpwr: internal use
163 * @dfs_state: current state of this channel. Only relevant if radar is required
165 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
166 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
168 struct ieee80211_channel
{
169 enum ieee80211_band band
;
173 int max_antenna_gain
;
178 int orig_mag
, orig_mpwr
;
179 enum nl80211_dfs_state dfs_state
;
180 unsigned long dfs_state_entered
;
181 unsigned int dfs_cac_ms
;
185 * enum ieee80211_rate_flags - rate flags
187 * Hardware/specification flags for rates. These are structured
188 * in a way that allows using the same bitrate structure for
189 * different bands/PHY modes.
191 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
192 * preamble on this bitrate; only relevant in 2.4GHz band and
194 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
195 * when used with 802.11a (on the 5 GHz band); filled by the
196 * core code when registering the wiphy.
197 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
198 * when used with 802.11b (on the 2.4 GHz band); filled by the
199 * core code when registering the wiphy.
200 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
201 * when used with 802.11g (on the 2.4 GHz band); filled by the
202 * core code when registering the wiphy.
203 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
204 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
205 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
207 enum ieee80211_rate_flags
{
208 IEEE80211_RATE_SHORT_PREAMBLE
= 1<<0,
209 IEEE80211_RATE_MANDATORY_A
= 1<<1,
210 IEEE80211_RATE_MANDATORY_B
= 1<<2,
211 IEEE80211_RATE_MANDATORY_G
= 1<<3,
212 IEEE80211_RATE_ERP_G
= 1<<4,
213 IEEE80211_RATE_SUPPORTS_5MHZ
= 1<<5,
214 IEEE80211_RATE_SUPPORTS_10MHZ
= 1<<6,
218 * struct ieee80211_rate - bitrate definition
220 * This structure describes a bitrate that an 802.11 PHY can
221 * operate with. The two values @hw_value and @hw_value_short
222 * are only for driver use when pointers to this structure are
225 * @flags: rate-specific flags
226 * @bitrate: bitrate in units of 100 Kbps
227 * @hw_value: driver/hardware value for this rate
228 * @hw_value_short: driver/hardware value for this rate when
229 * short preamble is used
231 struct ieee80211_rate
{
234 u16 hw_value
, hw_value_short
;
238 * struct ieee80211_sta_ht_cap - STA's HT capabilities
240 * This structure describes most essential parameters needed
241 * to describe 802.11n HT capabilities for an STA.
243 * @ht_supported: is HT supported by the STA
244 * @cap: HT capabilities map as described in 802.11n spec
245 * @ampdu_factor: Maximum A-MPDU length factor
246 * @ampdu_density: Minimum A-MPDU spacing
247 * @mcs: Supported MCS rates
249 struct ieee80211_sta_ht_cap
{
250 u16 cap
; /* use IEEE80211_HT_CAP_ */
254 struct ieee80211_mcs_info mcs
;
258 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
260 * This structure describes most essential parameters needed
261 * to describe 802.11ac VHT capabilities for an STA.
263 * @vht_supported: is VHT supported by the STA
264 * @cap: VHT capabilities map as described in 802.11ac spec
265 * @vht_mcs: Supported VHT MCS rates
267 struct ieee80211_sta_vht_cap
{
269 u32 cap
; /* use IEEE80211_VHT_CAP_ */
270 struct ieee80211_vht_mcs_info vht_mcs
;
274 * struct ieee80211_supported_band - frequency band definition
276 * This structure describes a frequency band a wiphy
277 * is able to operate in.
279 * @channels: Array of channels the hardware can operate in
281 * @band: the band this structure represents
282 * @n_channels: Number of channels in @channels
283 * @bitrates: Array of bitrates the hardware can operate with
284 * in this band. Must be sorted to give a valid "supported
285 * rates" IE, i.e. CCK rates first, then OFDM.
286 * @n_bitrates: Number of bitrates in @bitrates
287 * @ht_cap: HT capabilities in this band
288 * @vht_cap: VHT capabilities in this band
290 struct ieee80211_supported_band
{
291 struct ieee80211_channel
*channels
;
292 struct ieee80211_rate
*bitrates
;
293 enum ieee80211_band band
;
296 struct ieee80211_sta_ht_cap ht_cap
;
297 struct ieee80211_sta_vht_cap vht_cap
;
301 * Wireless hardware/device configuration structures and methods
305 * DOC: Actions and configuration
307 * Each wireless device and each virtual interface offer a set of configuration
308 * operations and other actions that are invoked by userspace. Each of these
309 * actions is described in the operations structure, and the parameters these
310 * operations use are described separately.
312 * Additionally, some operations are asynchronous and expect to get status
313 * information via some functions that drivers need to call.
315 * Scanning and BSS list handling with its associated functionality is described
316 * in a separate chapter.
320 * struct vif_params - describes virtual interface parameters
321 * @use_4addr: use 4-address frames
322 * @macaddr: address to use for this virtual interface.
323 * If this parameter is set to zero address the driver may
324 * determine the address as needed.
325 * This feature is only fully supported by drivers that enable the
326 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
327 ** only p2p devices with specified MAC.
331 u8 macaddr
[ETH_ALEN
];
335 * struct key_params - key information
337 * Information about a key
340 * @key_len: length of key material
341 * @cipher: cipher suite selector
342 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
343 * with the get_key() callback, must be in little endian,
344 * length given by @seq_len.
345 * @seq_len: length of @seq.
356 * struct cfg80211_chan_def - channel definition
357 * @chan: the (control) channel
358 * @width: channel width
359 * @center_freq1: center frequency of first segment
360 * @center_freq2: center frequency of second segment
361 * (only with 80+80 MHz)
363 struct cfg80211_chan_def
{
364 struct ieee80211_channel
*chan
;
365 enum nl80211_chan_width width
;
371 * cfg80211_get_chandef_type - return old channel type from chandef
372 * @chandef: the channel definition
374 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
375 * chandef, which must have a bandwidth allowing this conversion.
377 static inline enum nl80211_channel_type
378 cfg80211_get_chandef_type(const struct cfg80211_chan_def
*chandef
)
380 switch (chandef
->width
) {
381 case NL80211_CHAN_WIDTH_20_NOHT
:
382 return NL80211_CHAN_NO_HT
;
383 case NL80211_CHAN_WIDTH_20
:
384 return NL80211_CHAN_HT20
;
385 case NL80211_CHAN_WIDTH_40
:
386 if (chandef
->center_freq1
> chandef
->chan
->center_freq
)
387 return NL80211_CHAN_HT40PLUS
;
388 return NL80211_CHAN_HT40MINUS
;
391 return NL80211_CHAN_NO_HT
;
396 * cfg80211_chandef_create - create channel definition using channel type
397 * @chandef: the channel definition struct to fill
398 * @channel: the control channel
399 * @chantype: the channel type
401 * Given a channel type, create a channel definition.
403 void cfg80211_chandef_create(struct cfg80211_chan_def
*chandef
,
404 struct ieee80211_channel
*channel
,
405 enum nl80211_channel_type chantype
);
408 * cfg80211_chandef_identical - check if two channel definitions are identical
409 * @chandef1: first channel definition
410 * @chandef2: second channel definition
412 * Return: %true if the channels defined by the channel definitions are
413 * identical, %false otherwise.
416 cfg80211_chandef_identical(const struct cfg80211_chan_def
*chandef1
,
417 const struct cfg80211_chan_def
*chandef2
)
419 return (chandef1
->chan
== chandef2
->chan
&&
420 chandef1
->width
== chandef2
->width
&&
421 chandef1
->center_freq1
== chandef2
->center_freq1
&&
422 chandef1
->center_freq2
== chandef2
->center_freq2
);
426 * cfg80211_chandef_compatible - check if two channel definitions are compatible
427 * @chandef1: first channel definition
428 * @chandef2: second channel definition
430 * Return: %NULL if the given channel definitions are incompatible,
431 * chandef1 or chandef2 otherwise.
433 const struct cfg80211_chan_def
*
434 cfg80211_chandef_compatible(const struct cfg80211_chan_def
*chandef1
,
435 const struct cfg80211_chan_def
*chandef2
);
438 * cfg80211_chandef_valid - check if a channel definition is valid
439 * @chandef: the channel definition to check
440 * Return: %true if the channel definition is valid. %false otherwise.
442 bool cfg80211_chandef_valid(const struct cfg80211_chan_def
*chandef
);
445 * cfg80211_chandef_usable - check if secondary channels can be used
446 * @wiphy: the wiphy to validate against
447 * @chandef: the channel definition to check
448 * @prohibited_flags: the regulatory channel flags that must not be set
449 * Return: %true if secondary channels are usable. %false otherwise.
451 bool cfg80211_chandef_usable(struct wiphy
*wiphy
,
452 const struct cfg80211_chan_def
*chandef
,
453 u32 prohibited_flags
);
456 * cfg80211_chandef_dfs_required - checks if radar detection is required
457 * @wiphy: the wiphy to validate against
458 * @chandef: the channel definition to check
459 * @iftype: the interface type as specified in &enum nl80211_iftype
461 * 1 if radar detection is required, 0 if it is not, < 0 on error
463 int cfg80211_chandef_dfs_required(struct wiphy
*wiphy
,
464 const struct cfg80211_chan_def
*chandef
,
465 enum nl80211_iftype iftype
);
468 * ieee80211_chandef_rate_flags - returns rate flags for a channel
470 * In some channel types, not all rates may be used - for example CCK
471 * rates may not be used in 5/10 MHz channels.
473 * @chandef: channel definition for the channel
475 * Returns: rate flags which apply for this channel
477 static inline enum ieee80211_rate_flags
478 ieee80211_chandef_rate_flags(struct cfg80211_chan_def
*chandef
)
480 switch (chandef
->width
) {
481 case NL80211_CHAN_WIDTH_5
:
482 return IEEE80211_RATE_SUPPORTS_5MHZ
;
483 case NL80211_CHAN_WIDTH_10
:
484 return IEEE80211_RATE_SUPPORTS_10MHZ
;
492 * ieee80211_chandef_max_power - maximum transmission power for the chandef
494 * In some regulations, the transmit power may depend on the configured channel
495 * bandwidth which may be defined as dBm/MHz. This function returns the actual
496 * max_power for non-standard (20 MHz) channels.
498 * @chandef: channel definition for the channel
500 * Returns: maximum allowed transmission power in dBm for the chandef
503 ieee80211_chandef_max_power(struct cfg80211_chan_def
*chandef
)
505 switch (chandef
->width
) {
506 case NL80211_CHAN_WIDTH_5
:
507 return min(chandef
->chan
->max_reg_power
- 6,
508 chandef
->chan
->max_power
);
509 case NL80211_CHAN_WIDTH_10
:
510 return min(chandef
->chan
->max_reg_power
- 3,
511 chandef
->chan
->max_power
);
515 return chandef
->chan
->max_power
;
519 * enum survey_info_flags - survey information flags
521 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
522 * @SURVEY_INFO_IN_USE: channel is currently being used
523 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
524 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
525 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
526 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
527 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
529 * Used by the driver to indicate which info in &struct survey_info
530 * it has filled in during the get_survey().
532 enum survey_info_flags
{
533 SURVEY_INFO_NOISE_DBM
= 1<<0,
534 SURVEY_INFO_IN_USE
= 1<<1,
535 SURVEY_INFO_CHANNEL_TIME
= 1<<2,
536 SURVEY_INFO_CHANNEL_TIME_BUSY
= 1<<3,
537 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY
= 1<<4,
538 SURVEY_INFO_CHANNEL_TIME_RX
= 1<<5,
539 SURVEY_INFO_CHANNEL_TIME_TX
= 1<<6,
543 * struct survey_info - channel survey response
545 * @channel: the channel this survey record reports, mandatory
546 * @filled: bitflag of flags from &enum survey_info_flags
547 * @noise: channel noise in dBm. This and all following fields are
549 * @channel_time: amount of time in ms the radio spent on the channel
550 * @channel_time_busy: amount of time the primary channel was sensed busy
551 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
552 * @channel_time_rx: amount of time the radio spent receiving data
553 * @channel_time_tx: amount of time the radio spent transmitting data
555 * Used by dump_survey() to report back per-channel survey information.
557 * This structure can later be expanded with things like
558 * channel duty cycle etc.
561 struct ieee80211_channel
*channel
;
563 u64 channel_time_busy
;
564 u64 channel_time_ext_busy
;
572 * struct cfg80211_crypto_settings - Crypto settings
573 * @wpa_versions: indicates which, if any, WPA versions are enabled
574 * (from enum nl80211_wpa_versions)
575 * @cipher_group: group key cipher suite (or 0 if unset)
576 * @n_ciphers_pairwise: number of AP supported unicast ciphers
577 * @ciphers_pairwise: unicast key cipher suites
578 * @n_akm_suites: number of AKM suites
579 * @akm_suites: AKM suites
580 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
581 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
582 * required to assume that the port is unauthorized until authorized by
583 * user space. Otherwise, port is marked authorized by default.
584 * @control_port_ethertype: the control port protocol that should be
585 * allowed through even on unauthorized ports
586 * @control_port_no_encrypt: TRUE to prevent encryption of control port
589 struct cfg80211_crypto_settings
{
592 int n_ciphers_pairwise
;
593 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
595 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
597 __be16 control_port_ethertype
;
598 bool control_port_no_encrypt
;
602 * struct cfg80211_beacon_data - beacon data
603 * @head: head portion of beacon (before TIM IE)
604 * or %NULL if not changed
605 * @tail: tail portion of beacon (after TIM IE)
606 * or %NULL if not changed
607 * @head_len: length of @head
608 * @tail_len: length of @tail
609 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
610 * @beacon_ies_len: length of beacon_ies in octets
611 * @proberesp_ies: extra information element(s) to add into Probe Response
613 * @proberesp_ies_len: length of proberesp_ies in octets
614 * @assocresp_ies: extra information element(s) to add into (Re)Association
615 * Response frames or %NULL
616 * @assocresp_ies_len: length of assocresp_ies in octets
617 * @probe_resp_len: length of probe response template (@probe_resp)
618 * @probe_resp: probe response template (AP mode only)
620 struct cfg80211_beacon_data
{
621 const u8
*head
, *tail
;
622 const u8
*beacon_ies
;
623 const u8
*proberesp_ies
;
624 const u8
*assocresp_ies
;
625 const u8
*probe_resp
;
627 size_t head_len
, tail_len
;
628 size_t beacon_ies_len
;
629 size_t proberesp_ies_len
;
630 size_t assocresp_ies_len
;
631 size_t probe_resp_len
;
639 * struct cfg80211_acl_data - Access control list data
641 * @acl_policy: ACL policy to be applied on the station's
642 * entry specified by mac_addr
643 * @n_acl_entries: Number of MAC address entries passed
644 * @mac_addrs: List of MAC addresses of stations to be used for ACL
646 struct cfg80211_acl_data
{
647 enum nl80211_acl_policy acl_policy
;
651 struct mac_address mac_addrs
[];
655 * struct cfg80211_ap_settings - AP configuration
657 * Used to configure an AP interface.
659 * @chandef: defines the channel to use
660 * @beacon: beacon data
661 * @beacon_interval: beacon interval
662 * @dtim_period: DTIM period
663 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
665 * @ssid_len: length of @ssid
666 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
667 * @crypto: crypto settings
668 * @privacy: the BSS uses privacy
669 * @auth_type: Authentication type (algorithm)
670 * @smps_mode: SMPS mode
671 * @inactivity_timeout: time in seconds to determine station's inactivity.
672 * @p2p_ctwindow: P2P CT Window
673 * @p2p_opp_ps: P2P opportunistic PS
674 * @acl: ACL configuration used by the drivers which has support for
675 * MAC address based access control
677 struct cfg80211_ap_settings
{
678 struct cfg80211_chan_def chandef
;
680 struct cfg80211_beacon_data beacon
;
682 int beacon_interval
, dtim_period
;
685 enum nl80211_hidden_ssid hidden_ssid
;
686 struct cfg80211_crypto_settings crypto
;
688 enum nl80211_auth_type auth_type
;
689 enum nl80211_smps_mode smps_mode
;
690 int inactivity_timeout
;
693 const struct cfg80211_acl_data
*acl
;
697 * struct cfg80211_csa_settings - channel switch settings
699 * Used for channel switch
701 * @chandef: defines the channel to use after the switch
702 * @beacon_csa: beacon data while performing the switch
703 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
704 * @counter_offsets_presp: offsets of the counters within the probe response
705 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
706 * @n_counter_offsets_presp: number of csa counters in the probe response
707 * @beacon_after: beacon data to be used on the new channel
708 * @radar_required: whether radar detection is required on the new channel
709 * @block_tx: whether transmissions should be blocked while changing
710 * @count: number of beacons until switch
712 struct cfg80211_csa_settings
{
713 struct cfg80211_chan_def chandef
;
714 struct cfg80211_beacon_data beacon_csa
;
715 const u16
*counter_offsets_beacon
;
716 const u16
*counter_offsets_presp
;
717 unsigned int n_counter_offsets_beacon
;
718 unsigned int n_counter_offsets_presp
;
719 struct cfg80211_beacon_data beacon_after
;
726 * enum station_parameters_apply_mask - station parameter values to apply
727 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
728 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
729 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
731 * Not all station parameters have in-band "no change" signalling,
732 * for those that don't these flags will are used.
734 enum station_parameters_apply_mask
{
735 STATION_PARAM_APPLY_UAPSD
= BIT(0),
736 STATION_PARAM_APPLY_CAPABILITY
= BIT(1),
737 STATION_PARAM_APPLY_PLINK_STATE
= BIT(2),
741 * struct station_parameters - station parameters
743 * Used to change and create a new station.
745 * @vlan: vlan interface station should belong to
746 * @supported_rates: supported rates in IEEE 802.11 format
747 * (or NULL for no change)
748 * @supported_rates_len: number of supported rates
749 * @sta_flags_mask: station flags that changed
750 * (bitmask of BIT(NL80211_STA_FLAG_...))
751 * @sta_flags_set: station flags values
752 * (bitmask of BIT(NL80211_STA_FLAG_...))
753 * @listen_interval: listen interval or -1 for no change
754 * @aid: AID or zero for no change
755 * @plink_action: plink action to take
756 * @plink_state: set the peer link state for a station
757 * @ht_capa: HT capabilities of station
758 * @vht_capa: VHT capabilities of station
759 * @uapsd_queues: bitmap of queues configured for uapsd. same format
760 * as the AC bitmap in the QoS info field
761 * @max_sp: max Service Period. same format as the MAX_SP in the
762 * QoS info field (but already shifted down)
763 * @sta_modify_mask: bitmap indicating which parameters changed
764 * (for those that don't have a natural "no change" value),
765 * see &enum station_parameters_apply_mask
766 * @local_pm: local link-specific mesh power save mode (no change when set
768 * @capability: station capability
769 * @ext_capab: extended capabilities of the station
770 * @ext_capab_len: number of extended capabilities
771 * @supported_channels: supported channels in IEEE 802.11 format
772 * @supported_channels_len: number of supported channels
773 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
774 * @supported_oper_classes_len: number of supported operating classes
775 * @opmode_notif: operating mode field from Operating Mode Notification
776 * @opmode_notif_used: information if operating mode field is used
778 struct station_parameters
{
779 const u8
*supported_rates
;
780 struct net_device
*vlan
;
781 u32 sta_flags_mask
, sta_flags_set
;
785 u8 supported_rates_len
;
788 const struct ieee80211_ht_cap
*ht_capa
;
789 const struct ieee80211_vht_cap
*vht_capa
;
792 enum nl80211_mesh_power_mode local_pm
;
796 const u8
*supported_channels
;
797 u8 supported_channels_len
;
798 const u8
*supported_oper_classes
;
799 u8 supported_oper_classes_len
;
801 bool opmode_notif_used
;
805 * struct station_del_parameters - station deletion parameters
807 * Used to delete a station entry (or all stations).
809 * @mac: MAC address of the station to remove or NULL to remove all stations
810 * @subtype: Management frame subtype to use for indicating removal
811 * (10 = Disassociation, 12 = Deauthentication)
812 * @reason_code: Reason code for the Disassociation/Deauthentication frame
814 struct station_del_parameters
{
821 * enum cfg80211_station_type - the type of station being modified
822 * @CFG80211_STA_AP_CLIENT: client of an AP interface
823 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
824 * the AP MLME in the device
825 * @CFG80211_STA_AP_STA: AP station on managed interface
826 * @CFG80211_STA_IBSS: IBSS station
827 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
828 * while TDLS setup is in progress, it moves out of this state when
829 * being marked authorized; use this only if TDLS with external setup is
831 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
832 * entry that is operating, has been marked authorized by userspace)
833 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
834 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
836 enum cfg80211_station_type
{
837 CFG80211_STA_AP_CLIENT
,
838 CFG80211_STA_AP_MLME_CLIENT
,
841 CFG80211_STA_TDLS_PEER_SETUP
,
842 CFG80211_STA_TDLS_PEER_ACTIVE
,
843 CFG80211_STA_MESH_PEER_KERNEL
,
844 CFG80211_STA_MESH_PEER_USER
,
848 * cfg80211_check_station_change - validate parameter changes
849 * @wiphy: the wiphy this operates on
850 * @params: the new parameters for a station
851 * @statype: the type of station being modified
853 * Utility function for the @change_station driver method. Call this function
854 * with the appropriate station type looking up the station (and checking that
855 * it exists). It will verify whether the station change is acceptable, and if
856 * not will return an error code. Note that it may modify the parameters for
857 * backward compatibility reasons, so don't use them before calling this.
859 int cfg80211_check_station_change(struct wiphy
*wiphy
,
860 struct station_parameters
*params
,
861 enum cfg80211_station_type statype
);
864 * enum station_info_flags - station information flags
866 * Used by the driver to indicate which info in &struct station_info
867 * it has filled in during get_station() or dump_station().
869 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
870 * @STATION_INFO_RX_BYTES: @rx_bytes filled
871 * @STATION_INFO_TX_BYTES: @tx_bytes filled
872 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
873 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
874 * @STATION_INFO_LLID: @llid filled
875 * @STATION_INFO_PLID: @plid filled
876 * @STATION_INFO_PLINK_STATE: @plink_state filled
877 * @STATION_INFO_SIGNAL: @signal filled
878 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
879 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
880 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
881 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
882 * @STATION_INFO_TX_RETRIES: @tx_retries filled
883 * @STATION_INFO_TX_FAILED: @tx_failed filled
884 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
885 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
886 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
887 * @STATION_INFO_BSS_PARAM: @bss_param filled
888 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
889 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
890 * @STATION_INFO_STA_FLAGS: @sta_flags filled
891 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
892 * @STATION_INFO_T_OFFSET: @t_offset filled
893 * @STATION_INFO_LOCAL_PM: @local_pm filled
894 * @STATION_INFO_PEER_PM: @peer_pm filled
895 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
896 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
897 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
898 * @STATION_INFO_EXPECTED_THROUGHPUT: @expected_throughput filled
900 enum station_info_flags
{
901 STATION_INFO_INACTIVE_TIME
= BIT(0),
902 STATION_INFO_RX_BYTES
= BIT(1),
903 STATION_INFO_TX_BYTES
= BIT(2),
904 STATION_INFO_LLID
= BIT(3),
905 STATION_INFO_PLID
= BIT(4),
906 STATION_INFO_PLINK_STATE
= BIT(5),
907 STATION_INFO_SIGNAL
= BIT(6),
908 STATION_INFO_TX_BITRATE
= BIT(7),
909 STATION_INFO_RX_PACKETS
= BIT(8),
910 STATION_INFO_TX_PACKETS
= BIT(9),
911 STATION_INFO_TX_RETRIES
= BIT(10),
912 STATION_INFO_TX_FAILED
= BIT(11),
913 STATION_INFO_RX_DROP_MISC
= BIT(12),
914 STATION_INFO_SIGNAL_AVG
= BIT(13),
915 STATION_INFO_RX_BITRATE
= BIT(14),
916 STATION_INFO_BSS_PARAM
= BIT(15),
917 STATION_INFO_CONNECTED_TIME
= BIT(16),
918 STATION_INFO_ASSOC_REQ_IES
= BIT(17),
919 STATION_INFO_STA_FLAGS
= BIT(18),
920 STATION_INFO_BEACON_LOSS_COUNT
= BIT(19),
921 STATION_INFO_T_OFFSET
= BIT(20),
922 STATION_INFO_LOCAL_PM
= BIT(21),
923 STATION_INFO_PEER_PM
= BIT(22),
924 STATION_INFO_NONPEER_PM
= BIT(23),
925 STATION_INFO_RX_BYTES64
= BIT(24),
926 STATION_INFO_TX_BYTES64
= BIT(25),
927 STATION_INFO_CHAIN_SIGNAL
= BIT(26),
928 STATION_INFO_CHAIN_SIGNAL_AVG
= BIT(27),
929 STATION_INFO_EXPECTED_THROUGHPUT
= BIT(28),
933 * enum station_info_rate_flags - bitrate info flags
935 * Used by the driver to indicate the specific rate transmission
936 * type for 802.11n transmissions.
938 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
939 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
940 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
941 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
942 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
943 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
944 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
945 * @RATE_INFO_FLAGS_60G: 60GHz MCS
947 enum rate_info_flags
{
948 RATE_INFO_FLAGS_MCS
= BIT(0),
949 RATE_INFO_FLAGS_VHT_MCS
= BIT(1),
950 RATE_INFO_FLAGS_40_MHZ_WIDTH
= BIT(2),
951 RATE_INFO_FLAGS_80_MHZ_WIDTH
= BIT(3),
952 RATE_INFO_FLAGS_80P80_MHZ_WIDTH
= BIT(4),
953 RATE_INFO_FLAGS_160_MHZ_WIDTH
= BIT(5),
954 RATE_INFO_FLAGS_SHORT_GI
= BIT(6),
955 RATE_INFO_FLAGS_60G
= BIT(7),
959 * struct rate_info - bitrate information
961 * Information about a receiving or transmitting bitrate
963 * @flags: bitflag of flags from &enum rate_info_flags
964 * @mcs: mcs index if struct describes a 802.11n bitrate
965 * @legacy: bitrate in 100kbit/s for 802.11abg
966 * @nss: number of streams (VHT only)
976 * enum station_info_rate_flags - bitrate info flags
978 * Used by the driver to indicate the specific rate transmission
979 * type for 802.11n transmissions.
981 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
982 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
983 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
985 enum bss_param_flags
{
986 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
987 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
988 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
992 * struct sta_bss_parameters - BSS parameters for the attached station
994 * Information about the currently associated BSS
996 * @flags: bitflag of flags from &enum bss_param_flags
997 * @dtim_period: DTIM period for the BSS
998 * @beacon_interval: beacon interval
1000 struct sta_bss_parameters
{
1003 u16 beacon_interval
;
1006 #define IEEE80211_MAX_CHAINS 4
1009 * struct station_info - station information
1011 * Station information filled by driver for get_station() and dump_station.
1013 * @filled: bitflag of flags from &enum station_info_flags
1014 * @connected_time: time(in secs) since a station is last connected
1015 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1016 * @rx_bytes: bytes received from this station
1017 * @tx_bytes: bytes transmitted to this station
1018 * @llid: mesh local link id
1019 * @plid: mesh peer link id
1020 * @plink_state: mesh peer link state
1021 * @signal: The signal strength, type depends on the wiphy's signal_type.
1022 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1023 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1024 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1025 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1026 * @chain_signal: per-chain signal strength of last received packet in dBm
1027 * @chain_signal_avg: per-chain signal strength average in dBm
1028 * @txrate: current unicast bitrate from this station
1029 * @rxrate: current unicast bitrate to this station
1030 * @rx_packets: packets received from this station
1031 * @tx_packets: packets transmitted to this station
1032 * @tx_retries: cumulative retry counts
1033 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
1034 * @rx_dropped_misc: Dropped for un-specified reason.
1035 * @bss_param: current BSS parameters
1036 * @generation: generation number for nl80211 dumps.
1037 * This number should increase every time the list of stations
1038 * changes, i.e. when a station is added or removed, so that
1039 * userspace can tell whether it got a consistent snapshot.
1040 * @assoc_req_ies: IEs from (Re)Association Request.
1041 * This is used only when in AP mode with drivers that do not use
1042 * user space MLME/SME implementation. The information is provided for
1043 * the cfg80211_new_sta() calls to notify user space of the IEs.
1044 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1045 * @sta_flags: station flags mask & values
1046 * @beacon_loss_count: Number of times beacon loss event has triggered.
1047 * @t_offset: Time offset of the station relative to this host.
1048 * @local_pm: local mesh STA power save mode
1049 * @peer_pm: peer mesh STA power save mode
1050 * @nonpeer_pm: non-peer mesh STA power save mode
1051 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1052 * towards this station.
1054 struct station_info
{
1067 s8 chain_signal
[IEEE80211_MAX_CHAINS
];
1068 s8 chain_signal_avg
[IEEE80211_MAX_CHAINS
];
1070 struct rate_info txrate
;
1071 struct rate_info rxrate
;
1076 u32 rx_dropped_misc
;
1077 struct sta_bss_parameters bss_param
;
1078 struct nl80211_sta_flag_update sta_flags
;
1082 const u8
*assoc_req_ies
;
1083 size_t assoc_req_ies_len
;
1085 u32 beacon_loss_count
;
1087 enum nl80211_mesh_power_mode local_pm
;
1088 enum nl80211_mesh_power_mode peer_pm
;
1089 enum nl80211_mesh_power_mode nonpeer_pm
;
1091 u32 expected_throughput
;
1094 * Note: Add a new enum station_info_flags value for each new field and
1095 * use it to check which fields are initialized.
1100 * cfg80211_get_station - retrieve information about a given station
1101 * @dev: the device where the station is supposed to be connected to
1102 * @mac_addr: the mac address of the station of interest
1103 * @sinfo: pointer to the structure to fill with the information
1105 * Returns 0 on success and sinfo is filled with the available information
1106 * otherwise returns a negative error code and the content of sinfo has to be
1107 * considered undefined.
1109 int cfg80211_get_station(struct net_device
*dev
, const u8
*mac_addr
,
1110 struct station_info
*sinfo
);
1113 * enum monitor_flags - monitor flags
1115 * Monitor interface configuration flags. Note that these must be the bits
1116 * according to the nl80211 flags.
1118 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1119 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1120 * @MONITOR_FLAG_CONTROL: pass control frames
1121 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1122 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1123 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1125 enum monitor_flags
{
1126 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
1127 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
1128 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
1129 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
1130 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
1131 MONITOR_FLAG_ACTIVE
= 1<<NL80211_MNTR_FLAG_ACTIVE
,
1135 * enum mpath_info_flags - mesh path information flags
1137 * Used by the driver to indicate which info in &struct mpath_info it has filled
1138 * in during get_station() or dump_station().
1140 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1141 * @MPATH_INFO_SN: @sn filled
1142 * @MPATH_INFO_METRIC: @metric filled
1143 * @MPATH_INFO_EXPTIME: @exptime filled
1144 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1145 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1146 * @MPATH_INFO_FLAGS: @flags filled
1148 enum mpath_info_flags
{
1149 MPATH_INFO_FRAME_QLEN
= BIT(0),
1150 MPATH_INFO_SN
= BIT(1),
1151 MPATH_INFO_METRIC
= BIT(2),
1152 MPATH_INFO_EXPTIME
= BIT(3),
1153 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
1154 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
1155 MPATH_INFO_FLAGS
= BIT(6),
1159 * struct mpath_info - mesh path information
1161 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1163 * @filled: bitfield of flags from &enum mpath_info_flags
1164 * @frame_qlen: number of queued frames for this destination
1165 * @sn: target sequence number
1166 * @metric: metric (cost) of this mesh path
1167 * @exptime: expiration time for the mesh path from now, in msecs
1168 * @flags: mesh path flags
1169 * @discovery_timeout: total mesh path discovery timeout, in msecs
1170 * @discovery_retries: mesh path discovery retries
1171 * @generation: generation number for nl80211 dumps.
1172 * This number should increase every time the list of mesh paths
1173 * changes, i.e. when a station is added or removed, so that
1174 * userspace can tell whether it got a consistent snapshot.
1182 u32 discovery_timeout
;
1183 u8 discovery_retries
;
1190 * struct bss_parameters - BSS parameters
1192 * Used to change BSS parameters (mainly for AP mode).
1194 * @use_cts_prot: Whether to use CTS protection
1195 * (0 = no, 1 = yes, -1 = do not change)
1196 * @use_short_preamble: Whether the use of short preambles is allowed
1197 * (0 = no, 1 = yes, -1 = do not change)
1198 * @use_short_slot_time: Whether the use of short slot time is allowed
1199 * (0 = no, 1 = yes, -1 = do not change)
1200 * @basic_rates: basic rates in IEEE 802.11 format
1201 * (or NULL for no change)
1202 * @basic_rates_len: number of basic rates
1203 * @ap_isolate: do not forward packets between connected stations
1204 * @ht_opmode: HT Operation mode
1205 * (u16 = opmode, -1 = do not change)
1206 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1207 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1209 struct bss_parameters
{
1211 int use_short_preamble
;
1212 int use_short_slot_time
;
1213 const u8
*basic_rates
;
1217 s8 p2p_ctwindow
, p2p_opp_ps
;
1221 * struct mesh_config - 802.11s mesh configuration
1223 * These parameters can be changed while the mesh is active.
1225 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1226 * by the Mesh Peering Open message
1227 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1228 * used by the Mesh Peering Open message
1229 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1230 * the mesh peering management to close a mesh peering
1231 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1233 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1234 * be sent to establish a new peer link instance in a mesh
1235 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1236 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1238 * @auto_open_plinks: whether we should automatically open peer links when we
1239 * detect compatible mesh peers
1240 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1241 * synchronize to for 11s default synchronization method
1242 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1243 * that an originator mesh STA can send to a particular path target
1244 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1245 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1246 * a path discovery in milliseconds
1247 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1248 * receiving a PREQ shall consider the forwarding information from the
1249 * root to be valid. (TU = time unit)
1250 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1251 * which a mesh STA can send only one action frame containing a PREQ
1253 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1254 * which a mesh STA can send only one Action frame containing a PERR
1256 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1257 * it takes for an HWMP information element to propagate across the mesh
1258 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1259 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1260 * announcements are transmitted
1261 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1262 * station has access to a broader network beyond the MBSS. (This is
1263 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1264 * only means that the station will announce others it's a mesh gate, but
1265 * not necessarily using the gate announcement protocol. Still keeping the
1266 * same nomenclature to be in sync with the spec)
1267 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1268 * entity (default is TRUE - forwarding entity)
1269 * @rssi_threshold: the threshold for average signal strength of candidate
1270 * station to establish a peer link
1271 * @ht_opmode: mesh HT protection mode
1273 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1274 * receiving a proactive PREQ shall consider the forwarding information to
1275 * the root mesh STA to be valid.
1277 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1278 * PREQs are transmitted.
1279 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1280 * during which a mesh STA can send only one Action frame containing
1281 * a PREQ element for root path confirmation.
1282 * @power_mode: The default mesh power save mode which will be the initial
1283 * setting for new peer links.
1284 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1285 * after transmitting its beacon.
1286 * @plink_timeout: If no tx activity is seen from a STA we've established
1287 * peering with for longer than this time (in seconds), then remove it
1288 * from the STA's list of peers. Default is 30 minutes.
1290 struct mesh_config
{
1291 u16 dot11MeshRetryTimeout
;
1292 u16 dot11MeshConfirmTimeout
;
1293 u16 dot11MeshHoldingTimeout
;
1294 u16 dot11MeshMaxPeerLinks
;
1295 u8 dot11MeshMaxRetries
;
1298 bool auto_open_plinks
;
1299 u32 dot11MeshNbrOffsetMaxNeighbor
;
1300 u8 dot11MeshHWMPmaxPREQretries
;
1301 u32 path_refresh_time
;
1302 u16 min_discovery_timeout
;
1303 u32 dot11MeshHWMPactivePathTimeout
;
1304 u16 dot11MeshHWMPpreqMinInterval
;
1305 u16 dot11MeshHWMPperrMinInterval
;
1306 u16 dot11MeshHWMPnetDiameterTraversalTime
;
1307 u8 dot11MeshHWMPRootMode
;
1308 u16 dot11MeshHWMPRannInterval
;
1309 bool dot11MeshGateAnnouncementProtocol
;
1310 bool dot11MeshForwarding
;
1313 u32 dot11MeshHWMPactivePathToRootTimeout
;
1314 u16 dot11MeshHWMProotInterval
;
1315 u16 dot11MeshHWMPconfirmationInterval
;
1316 enum nl80211_mesh_power_mode power_mode
;
1317 u16 dot11MeshAwakeWindowDuration
;
1322 * struct mesh_setup - 802.11s mesh setup configuration
1323 * @chandef: defines the channel to use
1324 * @mesh_id: the mesh ID
1325 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1326 * @sync_method: which synchronization method to use
1327 * @path_sel_proto: which path selection protocol to use
1328 * @path_metric: which metric to use
1329 * @auth_id: which authentication method this mesh is using
1330 * @ie: vendor information elements (optional)
1331 * @ie_len: length of vendor information elements
1332 * @is_authenticated: this mesh requires authentication
1333 * @is_secure: this mesh uses security
1334 * @user_mpm: userspace handles all MPM functions
1335 * @dtim_period: DTIM period to use
1336 * @beacon_interval: beacon interval to use
1337 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1338 * @basic_rates: basic rates to use when creating the mesh
1340 * These parameters are fixed when the mesh is created.
1343 struct cfg80211_chan_def chandef
;
1352 bool is_authenticated
;
1356 u16 beacon_interval
;
1357 int mcast_rate
[IEEE80211_NUM_BANDS
];
1362 * struct ocb_setup - 802.11p OCB mode setup configuration
1363 * @chandef: defines the channel to use
1365 * These parameters are fixed when connecting to the network
1368 struct cfg80211_chan_def chandef
;
1372 * struct ieee80211_txq_params - TX queue parameters
1373 * @ac: AC identifier
1374 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1375 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1377 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1379 * @aifs: Arbitration interframe space [0..255]
1381 struct ieee80211_txq_params
{
1390 * DOC: Scanning and BSS list handling
1392 * The scanning process itself is fairly simple, but cfg80211 offers quite
1393 * a bit of helper functionality. To start a scan, the scan operation will
1394 * be invoked with a scan definition. This scan definition contains the
1395 * channels to scan, and the SSIDs to send probe requests for (including the
1396 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1397 * probe. Additionally, a scan request may contain extra information elements
1398 * that should be added to the probe request. The IEs are guaranteed to be
1399 * well-formed, and will not exceed the maximum length the driver advertised
1400 * in the wiphy structure.
1402 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1403 * it is responsible for maintaining the BSS list; the driver should not
1404 * maintain a list itself. For this notification, various functions exist.
1406 * Since drivers do not maintain a BSS list, there are also a number of
1407 * functions to search for a BSS and obtain information about it from the
1408 * BSS structure cfg80211 maintains. The BSS list is also made available
1413 * struct cfg80211_ssid - SSID description
1415 * @ssid_len: length of the ssid
1417 struct cfg80211_ssid
{
1418 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1423 * struct cfg80211_scan_request - scan request description
1425 * @ssids: SSIDs to scan for (active scan only)
1426 * @n_ssids: number of SSIDs
1427 * @channels: channels to scan on.
1428 * @n_channels: total number of channels to scan
1429 * @scan_width: channel width for scanning
1430 * @ie: optional information element(s) to add into Probe Request or %NULL
1431 * @ie_len: length of ie in octets
1432 * @flags: bit field of flags controlling operation
1433 * @rates: bitmap of rates to advertise for each band
1434 * @wiphy: the wiphy this was for
1435 * @scan_start: time (in jiffies) when the scan started
1436 * @wdev: the wireless device to scan for
1437 * @aborted: (internal) scan request was notified as aborted
1438 * @notified: (internal) scan request was notified as done or aborted
1439 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1440 * @mac_addr: MAC address used with randomisation
1441 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1442 * are 0 in the mask should be randomised, bits that are 1 should
1443 * be taken from the @mac_addr
1445 struct cfg80211_scan_request
{
1446 struct cfg80211_ssid
*ssids
;
1449 enum nl80211_bss_scan_width scan_width
;
1454 u32 rates
[IEEE80211_NUM_BANDS
];
1456 struct wireless_dev
*wdev
;
1458 u8 mac_addr
[ETH_ALEN
] __aligned(2);
1459 u8 mac_addr_mask
[ETH_ALEN
] __aligned(2);
1462 struct wiphy
*wiphy
;
1463 unsigned long scan_start
;
1464 bool aborted
, notified
;
1468 struct ieee80211_channel
*channels
[0];
1471 static inline void get_random_mask_addr(u8
*buf
, const u8
*addr
, const u8
*mask
)
1475 get_random_bytes(buf
, ETH_ALEN
);
1476 for (i
= 0; i
< ETH_ALEN
; i
++) {
1478 buf
[i
] |= addr
[i
] & mask
[i
];
1483 * struct cfg80211_match_set - sets of attributes to match
1485 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
1486 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1488 struct cfg80211_match_set
{
1489 struct cfg80211_ssid ssid
;
1494 * struct cfg80211_sched_scan_request - scheduled scan request description
1496 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1497 * @n_ssids: number of SSIDs
1498 * @n_channels: total number of channels to scan
1499 * @scan_width: channel width for scanning
1500 * @interval: interval between each scheduled scan cycle
1501 * @ie: optional information element(s) to add into Probe Request or %NULL
1502 * @ie_len: length of ie in octets
1503 * @flags: bit field of flags controlling operation
1504 * @match_sets: sets of parameters to be matched for a scan result
1505 * entry to be considered valid and to be passed to the host
1506 * (others are filtered out).
1507 * If ommited, all results are passed.
1508 * @n_match_sets: number of match sets
1509 * @wiphy: the wiphy this was for
1510 * @dev: the interface
1511 * @scan_start: start time of the scheduled scan
1512 * @channels: channels to scan
1513 * @min_rssi_thold: for drivers only supporting a single threshold, this
1514 * contains the minimum over all matchsets
1515 * @mac_addr: MAC address used with randomisation
1516 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1517 * are 0 in the mask should be randomised, bits that are 1 should
1518 * be taken from the @mac_addr
1520 struct cfg80211_sched_scan_request
{
1521 struct cfg80211_ssid
*ssids
;
1524 enum nl80211_bss_scan_width scan_width
;
1529 struct cfg80211_match_set
*match_sets
;
1533 u8 mac_addr
[ETH_ALEN
] __aligned(2);
1534 u8 mac_addr_mask
[ETH_ALEN
] __aligned(2);
1537 struct wiphy
*wiphy
;
1538 struct net_device
*dev
;
1539 unsigned long scan_start
;
1542 struct ieee80211_channel
*channels
[0];
1546 * enum cfg80211_signal_type - signal type
1548 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1549 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1550 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1552 enum cfg80211_signal_type
{
1553 CFG80211_SIGNAL_TYPE_NONE
,
1554 CFG80211_SIGNAL_TYPE_MBM
,
1555 CFG80211_SIGNAL_TYPE_UNSPEC
,
1559 * struct cfg80211_bss_ie_data - BSS entry IE data
1560 * @tsf: TSF contained in the frame that carried these IEs
1561 * @rcu_head: internal use, for freeing
1562 * @len: length of the IEs
1563 * @from_beacon: these IEs are known to come from a beacon
1566 struct cfg80211_bss_ies
{
1568 struct rcu_head rcu_head
;
1575 * struct cfg80211_bss - BSS description
1577 * This structure describes a BSS (which may also be a mesh network)
1578 * for use in scan results and similar.
1580 * @channel: channel this BSS is on
1581 * @scan_width: width of the control channel
1582 * @bssid: BSSID of the BSS
1583 * @beacon_interval: the beacon interval as from the frame
1584 * @capability: the capability field in host byte order
1585 * @ies: the information elements (Note that there is no guarantee that these
1586 * are well-formed!); this is a pointer to either the beacon_ies or
1587 * proberesp_ies depending on whether Probe Response frame has been
1588 * received. It is always non-%NULL.
1589 * @beacon_ies: the information elements from the last Beacon frame
1590 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1591 * own the beacon_ies, but they're just pointers to the ones from the
1592 * @hidden_beacon_bss struct)
1593 * @proberesp_ies: the information elements from the last Probe Response frame
1594 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1595 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1596 * that holds the beacon data. @beacon_ies is still valid, of course, and
1597 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1598 * @signal: signal strength value (type depends on the wiphy's signal_type)
1599 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1601 struct cfg80211_bss
{
1602 struct ieee80211_channel
*channel
;
1603 enum nl80211_bss_scan_width scan_width
;
1605 const struct cfg80211_bss_ies __rcu
*ies
;
1606 const struct cfg80211_bss_ies __rcu
*beacon_ies
;
1607 const struct cfg80211_bss_ies __rcu
*proberesp_ies
;
1609 struct cfg80211_bss
*hidden_beacon_bss
;
1613 u16 beacon_interval
;
1618 u8 priv
[0] __aligned(sizeof(void *));
1622 * ieee80211_bss_get_ie - find IE with given ID
1623 * @bss: the bss to search
1626 * Note that the return value is an RCU-protected pointer, so
1627 * rcu_read_lock() must be held when calling this function.
1628 * Return: %NULL if not found.
1630 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1634 * struct cfg80211_auth_request - Authentication request data
1636 * This structure provides information needed to complete IEEE 802.11
1639 * @bss: The BSS to authenticate with, the callee must obtain a reference
1640 * to it if it needs to keep it.
1641 * @auth_type: Authentication type (algorithm)
1642 * @ie: Extra IEs to add to Authentication frame or %NULL
1643 * @ie_len: Length of ie buffer in octets
1644 * @key_len: length of WEP key for shared key authentication
1645 * @key_idx: index of WEP key for shared key authentication
1646 * @key: WEP key for shared key authentication
1647 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1648 * Authentication transaction sequence number field.
1649 * @sae_data_len: Length of sae_data buffer in octets
1651 struct cfg80211_auth_request
{
1652 struct cfg80211_bss
*bss
;
1655 enum nl80211_auth_type auth_type
;
1657 u8 key_len
, key_idx
;
1659 size_t sae_data_len
;
1663 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1665 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1666 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1667 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
1669 enum cfg80211_assoc_req_flags
{
1670 ASSOC_REQ_DISABLE_HT
= BIT(0),
1671 ASSOC_REQ_DISABLE_VHT
= BIT(1),
1672 ASSOC_REQ_USE_RRM
= BIT(2),
1676 * struct cfg80211_assoc_request - (Re)Association request data
1678 * This structure provides information needed to complete IEEE 802.11
1680 * @bss: The BSS to associate with. If the call is successful the driver is
1681 * given a reference that it must give back to cfg80211_send_rx_assoc()
1682 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1683 * association requests while already associating must be rejected.
1684 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1685 * @ie_len: Length of ie buffer in octets
1686 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1687 * @crypto: crypto settings
1688 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1689 * @flags: See &enum cfg80211_assoc_req_flags
1690 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1691 * will be used in ht_capa. Un-supported values will be ignored.
1692 * @ht_capa_mask: The bits of ht_capa which are to be used.
1693 * @vht_capa: VHT capability override
1694 * @vht_capa_mask: VHT capability mask indicating which fields to use
1696 struct cfg80211_assoc_request
{
1697 struct cfg80211_bss
*bss
;
1698 const u8
*ie
, *prev_bssid
;
1700 struct cfg80211_crypto_settings crypto
;
1703 struct ieee80211_ht_cap ht_capa
;
1704 struct ieee80211_ht_cap ht_capa_mask
;
1705 struct ieee80211_vht_cap vht_capa
, vht_capa_mask
;
1709 * struct cfg80211_deauth_request - Deauthentication request data
1711 * This structure provides information needed to complete IEEE 802.11
1714 * @bssid: the BSSID of the BSS to deauthenticate from
1715 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1716 * @ie_len: Length of ie buffer in octets
1717 * @reason_code: The reason code for the deauthentication
1718 * @local_state_change: if set, change local state only and
1719 * do not set a deauth frame
1721 struct cfg80211_deauth_request
{
1726 bool local_state_change
;
1730 * struct cfg80211_disassoc_request - Disassociation request data
1732 * This structure provides information needed to complete IEEE 802.11
1735 * @bss: the BSS to disassociate from
1736 * @ie: Extra IEs to add to Disassociation frame or %NULL
1737 * @ie_len: Length of ie buffer in octets
1738 * @reason_code: The reason code for the disassociation
1739 * @local_state_change: This is a request for a local state only, i.e., no
1740 * Disassociation frame is to be transmitted.
1742 struct cfg80211_disassoc_request
{
1743 struct cfg80211_bss
*bss
;
1747 bool local_state_change
;
1751 * struct cfg80211_ibss_params - IBSS parameters
1753 * This structure defines the IBSS parameters for the join_ibss()
1756 * @ssid: The SSID, will always be non-null.
1757 * @ssid_len: The length of the SSID, will always be non-zero.
1758 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1759 * search for IBSSs with a different BSSID.
1760 * @chandef: defines the channel to use if no other IBSS to join can be found
1761 * @channel_fixed: The channel should be fixed -- do not search for
1762 * IBSSs to join on other channels.
1763 * @ie: information element(s) to include in the beacon
1764 * @ie_len: length of that
1765 * @beacon_interval: beacon interval to use
1766 * @privacy: this is a protected network, keys will be configured
1768 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1769 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1770 * required to assume that the port is unauthorized until authorized by
1771 * user space. Otherwise, port is marked authorized by default.
1772 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1773 * changes the channel when a radar is detected. This is required
1774 * to operate on DFS channels.
1775 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1776 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1777 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1778 * will be used in ht_capa. Un-supported values will be ignored.
1779 * @ht_capa_mask: The bits of ht_capa which are to be used.
1781 struct cfg80211_ibss_params
{
1784 struct cfg80211_chan_def chandef
;
1786 u8 ssid_len
, ie_len
;
1787 u16 beacon_interval
;
1792 bool userspace_handles_dfs
;
1793 int mcast_rate
[IEEE80211_NUM_BANDS
];
1794 struct ieee80211_ht_cap ht_capa
;
1795 struct ieee80211_ht_cap ht_capa_mask
;
1799 * struct cfg80211_connect_params - Connection parameters
1801 * This structure provides information needed to complete IEEE 802.11
1802 * authentication and association.
1804 * @channel: The channel to use or %NULL if not specified (auto-select based
1806 * @channel_hint: The channel of the recommended BSS for initial connection or
1807 * %NULL if not specified
1808 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1810 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
1811 * %NULL if not specified. Unlike the @bssid parameter, the driver is
1812 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
1815 * @ssid_len: Length of ssid in octets
1816 * @auth_type: Authentication type (algorithm)
1817 * @ie: IEs for association request
1818 * @ie_len: Length of assoc_ie in octets
1819 * @privacy: indicates whether privacy-enabled APs should be used
1820 * @mfp: indicate whether management frame protection is used
1821 * @crypto: crypto settings
1822 * @key_len: length of WEP key for shared key authentication
1823 * @key_idx: index of WEP key for shared key authentication
1824 * @key: WEP key for shared key authentication
1825 * @flags: See &enum cfg80211_assoc_req_flags
1826 * @bg_scan_period: Background scan period in seconds
1827 * or -1 to indicate that default value is to be used.
1828 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1829 * will be used in ht_capa. Un-supported values will be ignored.
1830 * @ht_capa_mask: The bits of ht_capa which are to be used.
1831 * @vht_capa: VHT Capability overrides
1832 * @vht_capa_mask: The bits of vht_capa which are to be used.
1834 struct cfg80211_connect_params
{
1835 struct ieee80211_channel
*channel
;
1836 struct ieee80211_channel
*channel_hint
;
1838 const u8
*bssid_hint
;
1841 enum nl80211_auth_type auth_type
;
1845 enum nl80211_mfp mfp
;
1846 struct cfg80211_crypto_settings crypto
;
1848 u8 key_len
, key_idx
;
1851 struct ieee80211_ht_cap ht_capa
;
1852 struct ieee80211_ht_cap ht_capa_mask
;
1853 struct ieee80211_vht_cap vht_capa
;
1854 struct ieee80211_vht_cap vht_capa_mask
;
1858 * enum wiphy_params_flags - set_wiphy_params bitfield values
1859 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1860 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1861 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1862 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1863 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1864 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
1866 enum wiphy_params_flags
{
1867 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1868 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1869 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1870 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1871 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1872 WIPHY_PARAM_DYN_ACK
= 1 << 5,
1876 * cfg80211_bitrate_mask - masks for bitrate control
1878 struct cfg80211_bitrate_mask
{
1881 u8 ht_mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1882 u16 vht_mcs
[NL80211_VHT_NSS_MAX
];
1883 enum nl80211_txrate_gi gi
;
1884 } control
[IEEE80211_NUM_BANDS
];
1887 * struct cfg80211_pmksa - PMK Security Association
1889 * This structure is passed to the set/del_pmksa() method for PMKSA
1892 * @bssid: The AP's BSSID.
1893 * @pmkid: The PMK material itself.
1895 struct cfg80211_pmksa
{
1901 * struct cfg80211_pkt_pattern - packet pattern
1902 * @mask: bitmask where to match pattern and where to ignore bytes,
1903 * one bit per byte, in same format as nl80211
1904 * @pattern: bytes to match where bitmask is 1
1905 * @pattern_len: length of pattern (in bytes)
1906 * @pkt_offset: packet offset (in bytes)
1908 * Internal note: @mask and @pattern are allocated in one chunk of
1909 * memory, free @mask only!
1911 struct cfg80211_pkt_pattern
{
1912 const u8
*mask
, *pattern
;
1918 * struct cfg80211_wowlan_tcp - TCP connection parameters
1920 * @sock: (internal) socket for source port allocation
1921 * @src: source IP address
1922 * @dst: destination IP address
1923 * @dst_mac: destination MAC address
1924 * @src_port: source port
1925 * @dst_port: destination port
1926 * @payload_len: data payload length
1927 * @payload: data payload buffer
1928 * @payload_seq: payload sequence stamping configuration
1929 * @data_interval: interval at which to send data packets
1930 * @wake_len: wakeup payload match length
1931 * @wake_data: wakeup payload match data
1932 * @wake_mask: wakeup payload match mask
1933 * @tokens_size: length of the tokens buffer
1934 * @payload_tok: payload token usage configuration
1936 struct cfg80211_wowlan_tcp
{
1937 struct socket
*sock
;
1939 u16 src_port
, dst_port
;
1940 u8 dst_mac
[ETH_ALEN
];
1943 struct nl80211_wowlan_tcp_data_seq payload_seq
;
1946 const u8
*wake_data
, *wake_mask
;
1948 /* must be last, variable member */
1949 struct nl80211_wowlan_tcp_data_token payload_tok
;
1953 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1955 * This structure defines the enabled WoWLAN triggers for the device.
1956 * @any: wake up on any activity -- special trigger if device continues
1957 * operating as normal during suspend
1958 * @disconnect: wake up if getting disconnected
1959 * @magic_pkt: wake up on receiving magic packet
1960 * @patterns: wake up on receiving packet matching a pattern
1961 * @n_patterns: number of patterns
1962 * @gtk_rekey_failure: wake up on GTK rekey failure
1963 * @eap_identity_req: wake up on EAP identity request packet
1964 * @four_way_handshake: wake up on 4-way handshake
1965 * @rfkill_release: wake up when rfkill is released
1966 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
1967 * NULL if not configured.
1968 * @nd_config: configuration for the scan to be used for net detect wake.
1970 struct cfg80211_wowlan
{
1971 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1972 eap_identity_req
, four_way_handshake
,
1974 struct cfg80211_pkt_pattern
*patterns
;
1975 struct cfg80211_wowlan_tcp
*tcp
;
1977 struct cfg80211_sched_scan_request
*nd_config
;
1981 * struct cfg80211_coalesce_rules - Coalesce rule parameters
1983 * This structure defines coalesce rule for the device.
1984 * @delay: maximum coalescing delay in msecs.
1985 * @condition: condition for packet coalescence.
1986 * see &enum nl80211_coalesce_condition.
1987 * @patterns: array of packet patterns
1988 * @n_patterns: number of patterns
1990 struct cfg80211_coalesce_rules
{
1992 enum nl80211_coalesce_condition condition
;
1993 struct cfg80211_pkt_pattern
*patterns
;
1998 * struct cfg80211_coalesce - Packet coalescing settings
2000 * This structure defines coalescing settings.
2001 * @rules: array of coalesce rules
2002 * @n_rules: number of rules
2004 struct cfg80211_coalesce
{
2005 struct cfg80211_coalesce_rules
*rules
;
2010 * struct cfg80211_wowlan_nd_match - information about the match
2012 * @ssid: SSID of the match that triggered the wake up
2013 * @n_channels: Number of channels where the match occurred. This
2014 * value may be zero if the driver can't report the channels.
2015 * @channels: center frequencies of the channels where a match
2018 struct cfg80211_wowlan_nd_match
{
2019 struct cfg80211_ssid ssid
;
2025 * struct cfg80211_wowlan_nd_info - net detect wake up information
2027 * @n_matches: Number of match information instances provided in
2028 * @matches. This value may be zero if the driver can't provide
2029 * match information.
2030 * @matches: Array of pointers to matches containing information about
2031 * the matches that triggered the wake up.
2033 struct cfg80211_wowlan_nd_info
{
2035 struct cfg80211_wowlan_nd_match
*matches
[];
2039 * struct cfg80211_wowlan_wakeup - wakeup report
2040 * @disconnect: woke up by getting disconnected
2041 * @magic_pkt: woke up by receiving magic packet
2042 * @gtk_rekey_failure: woke up by GTK rekey failure
2043 * @eap_identity_req: woke up by EAP identity request packet
2044 * @four_way_handshake: woke up by 4-way handshake
2045 * @rfkill_release: woke up by rfkill being released
2046 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
2047 * @packet_present_len: copied wakeup packet data
2048 * @packet_len: original wakeup packet length
2049 * @packet: The packet causing the wakeup, if any.
2050 * @packet_80211: For pattern match, magic packet and other data
2051 * frame triggers an 802.3 frame should be reported, for
2052 * disconnect due to deauth 802.11 frame. This indicates which
2054 * @tcp_match: TCP wakeup packet received
2055 * @tcp_connlost: TCP connection lost or failed to establish
2056 * @tcp_nomoretokens: TCP data ran out of tokens
2057 * @net_detect: if not %NULL, woke up because of net detect
2059 struct cfg80211_wowlan_wakeup
{
2060 bool disconnect
, magic_pkt
, gtk_rekey_failure
,
2061 eap_identity_req
, four_way_handshake
,
2062 rfkill_release
, packet_80211
,
2063 tcp_match
, tcp_connlost
, tcp_nomoretokens
;
2065 u32 packet_present_len
, packet_len
;
2067 struct cfg80211_wowlan_nd_info
*net_detect
;
2071 * struct cfg80211_gtk_rekey_data - rekey data
2072 * @kek: key encryption key (NL80211_KEK_LEN bytes)
2073 * @kck: key confirmation key (NL80211_KCK_LEN bytes)
2074 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
2076 struct cfg80211_gtk_rekey_data
{
2077 const u8
*kek
, *kck
, *replay_ctr
;
2081 * struct cfg80211_update_ft_ies_params - FT IE Information
2083 * This structure provides information needed to update the fast transition IE
2085 * @md: The Mobility Domain ID, 2 Octet value
2086 * @ie: Fast Transition IEs
2087 * @ie_len: Length of ft_ie in octets
2089 struct cfg80211_update_ft_ies_params
{
2096 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
2098 * This structure provides information needed to transmit a mgmt frame
2100 * @chan: channel to use
2101 * @offchan: indicates wether off channel operation is required
2102 * @wait: duration for ROC
2103 * @buf: buffer to transmit
2104 * @len: buffer length
2105 * @no_cck: don't use cck rates for this frame
2106 * @dont_wait_for_ack: tells the low level not to wait for an ack
2107 * @n_csa_offsets: length of csa_offsets array
2108 * @csa_offsets: array of all the csa offsets in the frame
2110 struct cfg80211_mgmt_tx_params
{
2111 struct ieee80211_channel
*chan
;
2117 bool dont_wait_for_ack
;
2119 const u16
*csa_offsets
;
2123 * struct cfg80211_dscp_exception - DSCP exception
2125 * @dscp: DSCP value that does not adhere to the user priority range definition
2126 * @up: user priority value to which the corresponding DSCP value belongs
2128 struct cfg80211_dscp_exception
{
2134 * struct cfg80211_dscp_range - DSCP range definition for user priority
2136 * @low: lowest DSCP value of this user priority range, inclusive
2137 * @high: highest DSCP value of this user priority range, inclusive
2139 struct cfg80211_dscp_range
{
2144 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2145 #define IEEE80211_QOS_MAP_MAX_EX 21
2146 #define IEEE80211_QOS_MAP_LEN_MIN 16
2147 #define IEEE80211_QOS_MAP_LEN_MAX \
2148 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2151 * struct cfg80211_qos_map - QoS Map Information
2153 * This struct defines the Interworking QoS map setting for DSCP values
2155 * @num_des: number of DSCP exceptions (0..21)
2156 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2157 * the user priority DSCP range definition
2158 * @up: DSCP range definition for a particular user priority
2160 struct cfg80211_qos_map
{
2162 struct cfg80211_dscp_exception dscp_exception
[IEEE80211_QOS_MAP_MAX_EX
];
2163 struct cfg80211_dscp_range up
[8];
2167 * struct cfg80211_ops - backend description for wireless configuration
2169 * This struct is registered by fullmac card drivers and/or wireless stacks
2170 * in order to handle configuration requests on their interfaces.
2172 * All callbacks except where otherwise noted should return 0
2173 * on success or a negative error code.
2175 * All operations are currently invoked under rtnl for consistency with the
2176 * wireless extensions but this is subject to reevaluation as soon as this
2177 * code is used more widely and we have a first user without wext.
2179 * @suspend: wiphy device needs to be suspended. The variable @wow will
2180 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2181 * configured for the device.
2182 * @resume: wiphy device needs to be resumed
2183 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2184 * to call device_set_wakeup_enable() to enable/disable wakeup from
2187 * @add_virtual_intf: create a new virtual interface with the given name,
2188 * must set the struct wireless_dev's iftype. Beware: You must create
2189 * the new netdev in the wiphy's network namespace! Returns the struct
2190 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2191 * also set the address member in the wdev.
2193 * @del_virtual_intf: remove the virtual interface
2195 * @change_virtual_intf: change type/configuration of virtual interface,
2196 * keep the struct wireless_dev's iftype updated.
2198 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2199 * when adding a group key.
2201 * @get_key: get information about the key with the given parameters.
2202 * @mac_addr will be %NULL when requesting information for a group
2203 * key. All pointers given to the @callback function need not be valid
2204 * after it returns. This function should return an error if it is
2205 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2207 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2208 * and @key_index, return -ENOENT if the key doesn't exist.
2210 * @set_default_key: set the default key on an interface
2212 * @set_default_mgmt_key: set the default management frame key on an interface
2214 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2216 * @start_ap: Start acting in AP mode defined by the parameters.
2217 * @change_beacon: Change the beacon parameters for an access point mode
2218 * interface. This should reject the call when AP mode wasn't started.
2219 * @stop_ap: Stop being an AP, including stopping beaconing.
2221 * @add_station: Add a new station.
2222 * @del_station: Remove a station
2223 * @change_station: Modify a given station. Note that flags changes are not much
2224 * validated in cfg80211, in particular the auth/assoc/authorized flags
2225 * might come to the driver in invalid combinations -- make sure to check
2226 * them, also against the existing state! Drivers must call
2227 * cfg80211_check_station_change() to validate the information.
2228 * @get_station: get station information for the station identified by @mac
2229 * @dump_station: dump station callback -- resume dump at index @idx
2231 * @add_mpath: add a fixed mesh path
2232 * @del_mpath: delete a given mesh path
2233 * @change_mpath: change a given mesh path
2234 * @get_mpath: get a mesh path for the given parameters
2235 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2236 * @get_mpp: get a mesh proxy path for the given parameters
2237 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
2238 * @join_mesh: join the mesh network with the specified parameters
2239 * (invoked with the wireless_dev mutex held)
2240 * @leave_mesh: leave the current mesh network
2241 * (invoked with the wireless_dev mutex held)
2243 * @get_mesh_config: Get the current mesh configuration
2245 * @update_mesh_config: Update mesh parameters on a running mesh.
2246 * The mask is a bitfield which tells us which parameters to
2247 * set, and which to leave alone.
2249 * @change_bss: Modify parameters for a given BSS.
2251 * @set_txq_params: Set TX queue parameters
2253 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2254 * as it doesn't implement join_mesh and needs to set the channel to
2255 * join the mesh instead.
2257 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2258 * interfaces are active this callback should reject the configuration.
2259 * If no interfaces are active or the device is down, the channel should
2260 * be stored for when a monitor interface becomes active.
2262 * @scan: Request to do a scan. If returning zero, the scan request is given
2263 * the driver, and will be valid until passed to cfg80211_scan_done().
2264 * For scan results, call cfg80211_inform_bss(); you can call this outside
2265 * the scan/scan_done bracket too.
2267 * @auth: Request to authenticate with the specified peer
2268 * (invoked with the wireless_dev mutex held)
2269 * @assoc: Request to (re)associate with the specified peer
2270 * (invoked with the wireless_dev mutex held)
2271 * @deauth: Request to deauthenticate from the specified peer
2272 * (invoked with the wireless_dev mutex held)
2273 * @disassoc: Request to disassociate from the specified peer
2274 * (invoked with the wireless_dev mutex held)
2276 * @connect: Connect to the ESS with the specified parameters. When connected,
2277 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
2278 * If the connection fails for some reason, call cfg80211_connect_result()
2279 * with the status from the AP.
2280 * (invoked with the wireless_dev mutex held)
2281 * @disconnect: Disconnect from the BSS/ESS.
2282 * (invoked with the wireless_dev mutex held)
2284 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2285 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2287 * (invoked with the wireless_dev mutex held)
2288 * @leave_ibss: Leave the IBSS.
2289 * (invoked with the wireless_dev mutex held)
2291 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2294 * @set_wiphy_params: Notify that wiphy parameters have changed;
2295 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2296 * have changed. The actual parameter values are available in
2297 * struct wiphy. If returning an error, no value should be changed.
2299 * @set_tx_power: set the transmit power according to the parameters,
2300 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2301 * wdev may be %NULL if power was set for the wiphy, and will
2302 * always be %NULL unless the driver supports per-vif TX power
2303 * (as advertised by the nl80211 feature flag.)
2304 * @get_tx_power: store the current TX power into the dbm variable;
2305 * return 0 if successful
2307 * @set_wds_peer: set the WDS peer for a WDS interface
2309 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2310 * functions to adjust rfkill hw state
2312 * @dump_survey: get site survey information.
2314 * @remain_on_channel: Request the driver to remain awake on the specified
2315 * channel for the specified duration to complete an off-channel
2316 * operation (e.g., public action frame exchange). When the driver is
2317 * ready on the requested channel, it must indicate this with an event
2318 * notification by calling cfg80211_ready_on_channel().
2319 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2320 * This allows the operation to be terminated prior to timeout based on
2321 * the duration value.
2322 * @mgmt_tx: Transmit a management frame.
2323 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2324 * frame on another channel
2326 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2327 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2328 * used by the function, but 0 and 1 must not be touched. Additionally,
2329 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2330 * dump and return to userspace with an error, so be careful. If any data
2331 * was passed in from userspace then the data/len arguments will be present
2332 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2334 * @set_bitrate_mask: set the bitrate mask configuration
2336 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2337 * devices running firmwares capable of generating the (re) association
2338 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2339 * @del_pmksa: Delete a cached PMKID.
2340 * @flush_pmksa: Flush all cached PMKIDs.
2341 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2342 * allows the driver to adjust the dynamic ps timeout value.
2343 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2344 * @set_cqm_txe_config: Configure connection quality monitor TX error
2346 * @sched_scan_start: Tell the driver to start a scheduled scan.
2347 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
2348 * call must stop the scheduled scan and be ready for starting a new one
2349 * before it returns, i.e. @sched_scan_start may be called immediately
2350 * after that again and should not fail in that case. The driver should
2351 * not call cfg80211_sched_scan_stopped() for a requested stop (when this
2352 * method returns 0.)
2354 * @mgmt_frame_register: Notify driver that a management frame type was
2355 * registered. Note that this callback may not sleep, and cannot run
2356 * concurrently with itself.
2358 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2359 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2360 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2361 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2363 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2365 * @tdls_mgmt: Transmit a TDLS management frame.
2366 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2368 * @probe_client: probe an associated client, must return a cookie that it
2369 * later passes to cfg80211_probe_status().
2371 * @set_noack_map: Set the NoAck Map for the TIDs.
2373 * @get_channel: Get the current operating channel for the virtual interface.
2374 * For monitor interfaces, it should return %NULL unless there's a single
2375 * current monitoring channel.
2377 * @start_p2p_device: Start the given P2P device.
2378 * @stop_p2p_device: Stop the given P2P device.
2380 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2381 * Parameters include ACL policy, an array of MAC address of stations
2382 * and the number of MAC addresses. If there is already a list in driver
2383 * this new list replaces the existing one. Driver has to clear its ACL
2384 * when number of MAC addresses entries is passed as 0. Drivers which
2385 * advertise the support for MAC based ACL have to implement this callback.
2387 * @start_radar_detection: Start radar detection in the driver.
2389 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2390 * driver. If the SME is in the driver/firmware, this information can be
2391 * used in building Authentication and Reassociation Request frames.
2393 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2394 * for a given duration (milliseconds). The protocol is provided so the
2395 * driver can take the most appropriate actions.
2396 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2397 * reliability. This operation can not fail.
2398 * @set_coalesce: Set coalesce parameters.
2400 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
2401 * responsible for veryfing if the switch is possible. Since this is
2402 * inherently tricky driver may decide to disconnect an interface later
2403 * with cfg80211_stop_iface(). This doesn't mean driver can accept
2404 * everything. It should do it's best to verify requests and reject them
2405 * as soon as possible.
2407 * @set_qos_map: Set QoS mapping information to the driver
2409 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2410 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2411 * changes during the lifetime of the BSS.
2413 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
2414 * with the given parameters; action frame exchange has been handled by
2415 * userspace so this just has to modify the TX path to take the TS into
2417 * If the admitted time is 0 just validate the parameters to make sure
2418 * the session can be created at all; it is valid to just always return
2419 * success for that but that may result in inefficient behaviour (handshake
2420 * with the peer followed by immediate teardown when the addition is later
2422 * @del_tx_ts: remove an existing TX TS
2424 * @join_ocb: join the OCB network with the specified parameters
2425 * (invoked with the wireless_dev mutex held)
2426 * @leave_ocb: leave the current OCB network
2427 * (invoked with the wireless_dev mutex held)
2429 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
2430 * is responsible for continually initiating channel-switching operations
2431 * and returning to the base channel for communication with the AP.
2432 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
2433 * peers must be on the base channel when the call completes.
2435 struct cfg80211_ops
{
2436 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
2437 int (*resume
)(struct wiphy
*wiphy
);
2438 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
2440 struct wireless_dev
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
2442 enum nl80211_iftype type
,
2444 struct vif_params
*params
);
2445 int (*del_virtual_intf
)(struct wiphy
*wiphy
,
2446 struct wireless_dev
*wdev
);
2447 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
2448 struct net_device
*dev
,
2449 enum nl80211_iftype type
, u32
*flags
,
2450 struct vif_params
*params
);
2452 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2453 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2454 struct key_params
*params
);
2455 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2456 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2458 void (*callback
)(void *cookie
, struct key_params
*));
2459 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2460 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
2461 int (*set_default_key
)(struct wiphy
*wiphy
,
2462 struct net_device
*netdev
,
2463 u8 key_index
, bool unicast
, bool multicast
);
2464 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
2465 struct net_device
*netdev
,
2468 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2469 struct cfg80211_ap_settings
*settings
);
2470 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2471 struct cfg80211_beacon_data
*info
);
2472 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2475 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2477 struct station_parameters
*params
);
2478 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2479 struct station_del_parameters
*params
);
2480 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2482 struct station_parameters
*params
);
2483 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2484 const u8
*mac
, struct station_info
*sinfo
);
2485 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2486 int idx
, u8
*mac
, struct station_info
*sinfo
);
2488 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2489 const u8
*dst
, const u8
*next_hop
);
2490 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2492 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2493 const u8
*dst
, const u8
*next_hop
);
2494 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2495 u8
*dst
, u8
*next_hop
, struct mpath_info
*pinfo
);
2496 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2497 int idx
, u8
*dst
, u8
*next_hop
,
2498 struct mpath_info
*pinfo
);
2499 int (*get_mpp
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2500 u8
*dst
, u8
*mpp
, struct mpath_info
*pinfo
);
2501 int (*dump_mpp
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2502 int idx
, u8
*dst
, u8
*mpp
,
2503 struct mpath_info
*pinfo
);
2504 int (*get_mesh_config
)(struct wiphy
*wiphy
,
2505 struct net_device
*dev
,
2506 struct mesh_config
*conf
);
2507 int (*update_mesh_config
)(struct wiphy
*wiphy
,
2508 struct net_device
*dev
, u32 mask
,
2509 const struct mesh_config
*nconf
);
2510 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2511 const struct mesh_config
*conf
,
2512 const struct mesh_setup
*setup
);
2513 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2515 int (*join_ocb
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2516 struct ocb_setup
*setup
);
2517 int (*leave_ocb
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2519 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2520 struct bss_parameters
*params
);
2522 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2523 struct ieee80211_txq_params
*params
);
2525 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
2526 struct net_device
*dev
,
2527 struct ieee80211_channel
*chan
);
2529 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
2530 struct cfg80211_chan_def
*chandef
);
2532 int (*scan
)(struct wiphy
*wiphy
,
2533 struct cfg80211_scan_request
*request
);
2535 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2536 struct cfg80211_auth_request
*req
);
2537 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2538 struct cfg80211_assoc_request
*req
);
2539 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2540 struct cfg80211_deauth_request
*req
);
2541 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2542 struct cfg80211_disassoc_request
*req
);
2544 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2545 struct cfg80211_connect_params
*sme
);
2546 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2549 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2550 struct cfg80211_ibss_params
*params
);
2551 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2553 int (*set_mcast_rate
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2554 int rate
[IEEE80211_NUM_BANDS
]);
2556 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
2558 int (*set_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2559 enum nl80211_tx_power_setting type
, int mbm
);
2560 int (*get_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2563 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2566 void (*rfkill_poll
)(struct wiphy
*wiphy
);
2568 #ifdef CONFIG_NL80211_TESTMODE
2569 int (*testmode_cmd
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2570 void *data
, int len
);
2571 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
2572 struct netlink_callback
*cb
,
2573 void *data
, int len
);
2576 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
2577 struct net_device
*dev
,
2579 const struct cfg80211_bitrate_mask
*mask
);
2581 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2582 int idx
, struct survey_info
*info
);
2584 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2585 struct cfg80211_pmksa
*pmksa
);
2586 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2587 struct cfg80211_pmksa
*pmksa
);
2588 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
2590 int (*remain_on_channel
)(struct wiphy
*wiphy
,
2591 struct wireless_dev
*wdev
,
2592 struct ieee80211_channel
*chan
,
2593 unsigned int duration
,
2595 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
2596 struct wireless_dev
*wdev
,
2599 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2600 struct cfg80211_mgmt_tx_params
*params
,
2602 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
2603 struct wireless_dev
*wdev
,
2606 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2607 bool enabled
, int timeout
);
2609 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
2610 struct net_device
*dev
,
2611 s32 rssi_thold
, u32 rssi_hyst
);
2613 int (*set_cqm_txe_config
)(struct wiphy
*wiphy
,
2614 struct net_device
*dev
,
2615 u32 rate
, u32 pkts
, u32 intvl
);
2617 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
2618 struct wireless_dev
*wdev
,
2619 u16 frame_type
, bool reg
);
2621 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
2622 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
2624 int (*sched_scan_start
)(struct wiphy
*wiphy
,
2625 struct net_device
*dev
,
2626 struct cfg80211_sched_scan_request
*request
);
2627 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2629 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2630 struct cfg80211_gtk_rekey_data
*data
);
2632 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2633 const u8
*peer
, u8 action_code
, u8 dialog_token
,
2634 u16 status_code
, u32 peer_capability
,
2635 bool initiator
, const u8
*buf
, size_t len
);
2636 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2637 const u8
*peer
, enum nl80211_tdls_operation oper
);
2639 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2640 const u8
*peer
, u64
*cookie
);
2642 int (*set_noack_map
)(struct wiphy
*wiphy
,
2643 struct net_device
*dev
,
2646 int (*get_channel
)(struct wiphy
*wiphy
,
2647 struct wireless_dev
*wdev
,
2648 struct cfg80211_chan_def
*chandef
);
2650 int (*start_p2p_device
)(struct wiphy
*wiphy
,
2651 struct wireless_dev
*wdev
);
2652 void (*stop_p2p_device
)(struct wiphy
*wiphy
,
2653 struct wireless_dev
*wdev
);
2655 int (*set_mac_acl
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2656 const struct cfg80211_acl_data
*params
);
2658 int (*start_radar_detection
)(struct wiphy
*wiphy
,
2659 struct net_device
*dev
,
2660 struct cfg80211_chan_def
*chandef
,
2662 int (*update_ft_ies
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2663 struct cfg80211_update_ft_ies_params
*ftie
);
2664 int (*crit_proto_start
)(struct wiphy
*wiphy
,
2665 struct wireless_dev
*wdev
,
2666 enum nl80211_crit_proto_id protocol
,
2668 void (*crit_proto_stop
)(struct wiphy
*wiphy
,
2669 struct wireless_dev
*wdev
);
2670 int (*set_coalesce
)(struct wiphy
*wiphy
,
2671 struct cfg80211_coalesce
*coalesce
);
2673 int (*channel_switch
)(struct wiphy
*wiphy
,
2674 struct net_device
*dev
,
2675 struct cfg80211_csa_settings
*params
);
2677 int (*set_qos_map
)(struct wiphy
*wiphy
,
2678 struct net_device
*dev
,
2679 struct cfg80211_qos_map
*qos_map
);
2681 int (*set_ap_chanwidth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2682 struct cfg80211_chan_def
*chandef
);
2684 int (*add_tx_ts
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2685 u8 tsid
, const u8
*peer
, u8 user_prio
,
2687 int (*del_tx_ts
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2688 u8 tsid
, const u8
*peer
);
2690 int (*tdls_channel_switch
)(struct wiphy
*wiphy
,
2691 struct net_device
*dev
,
2692 const u8
*addr
, u8 oper_class
,
2693 struct cfg80211_chan_def
*chandef
);
2694 void (*tdls_cancel_channel_switch
)(struct wiphy
*wiphy
,
2695 struct net_device
*dev
,
2700 * wireless hardware and networking interfaces structures
2701 * and registration/helper functions
2705 * enum wiphy_flags - wiphy capability flags
2707 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2709 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2710 * by default -- this flag will be set depending on the kernel's default
2711 * on wiphy_new(), but can be changed by the driver if it has a good
2712 * reason to override the default
2713 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2714 * on a VLAN interface)
2715 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2716 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2717 * control port protocol ethertype. The device also honours the
2718 * control_port_no_encrypt flag.
2719 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2720 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2721 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2722 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2723 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2725 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2726 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2727 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2728 * link setup/discovery operations internally. Setup, discovery and
2729 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2730 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2731 * used for asking the driver/firmware to perform a TDLS operation.
2732 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2733 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2734 * when there are virtual interfaces in AP mode by calling
2735 * cfg80211_report_obss_beacon().
2736 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2737 * responds to probe-requests in hardware.
2738 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2739 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2740 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
2741 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
2742 * beaconing mode (AP, IBSS, Mesh, ...).
2748 WIPHY_FLAG_NETNS_OK
= BIT(3),
2749 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
2750 WIPHY_FLAG_4ADDR_AP
= BIT(5),
2751 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
2752 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
2753 WIPHY_FLAG_IBSS_RSN
= BIT(8),
2754 WIPHY_FLAG_MESH_AUTH
= BIT(10),
2755 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
2756 /* use hole at 12 */
2757 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
2758 WIPHY_FLAG_AP_UAPSD
= BIT(14),
2759 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
2760 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
2761 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
2762 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
2763 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
2764 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
2765 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
2766 WIPHY_FLAG_SUPPORTS_5_10_MHZ
= BIT(22),
2767 WIPHY_FLAG_HAS_CHANNEL_SWITCH
= BIT(23),
2771 * struct ieee80211_iface_limit - limit on certain interface types
2772 * @max: maximum number of interfaces of these types
2773 * @types: interface types (bits)
2775 struct ieee80211_iface_limit
{
2781 * struct ieee80211_iface_combination - possible interface combination
2782 * @limits: limits for the given interface types
2783 * @n_limits: number of limitations
2784 * @num_different_channels: can use up to this many different channels
2785 * @max_interfaces: maximum number of interfaces in total allowed in this
2787 * @beacon_int_infra_match: In this combination, the beacon intervals
2788 * between infrastructure and AP types must match. This is required
2789 * only in special cases.
2790 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2791 * @radar_detect_regions: bitmap of regions supported for radar detection
2793 * With this structure the driver can describe which interface
2794 * combinations it supports concurrently.
2798 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2800 * struct ieee80211_iface_limit limits1[] = {
2801 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2802 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2804 * struct ieee80211_iface_combination combination1 = {
2805 * .limits = limits1,
2806 * .n_limits = ARRAY_SIZE(limits1),
2807 * .max_interfaces = 2,
2808 * .beacon_int_infra_match = true,
2812 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2814 * struct ieee80211_iface_limit limits2[] = {
2815 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2816 * BIT(NL80211_IFTYPE_P2P_GO), },
2818 * struct ieee80211_iface_combination combination2 = {
2819 * .limits = limits2,
2820 * .n_limits = ARRAY_SIZE(limits2),
2821 * .max_interfaces = 8,
2822 * .num_different_channels = 1,
2826 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2828 * This allows for an infrastructure connection and three P2P connections.
2830 * struct ieee80211_iface_limit limits3[] = {
2831 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2832 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2833 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2835 * struct ieee80211_iface_combination combination3 = {
2836 * .limits = limits3,
2837 * .n_limits = ARRAY_SIZE(limits3),
2838 * .max_interfaces = 4,
2839 * .num_different_channels = 2,
2842 struct ieee80211_iface_combination
{
2843 const struct ieee80211_iface_limit
*limits
;
2844 u32 num_different_channels
;
2847 bool beacon_int_infra_match
;
2848 u8 radar_detect_widths
;
2849 u8 radar_detect_regions
;
2852 struct ieee80211_txrx_stypes
{
2857 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2858 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2859 * trigger that keeps the device operating as-is and
2860 * wakes up the host on any activity, for example a
2861 * received packet that passed filtering; note that the
2862 * packet should be preserved in that case
2863 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2865 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2866 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2867 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2868 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2869 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2870 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2871 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
2873 enum wiphy_wowlan_support_flags
{
2874 WIPHY_WOWLAN_ANY
= BIT(0),
2875 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
2876 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
2877 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
2878 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
2879 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
2880 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
2881 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2882 WIPHY_WOWLAN_NET_DETECT
= BIT(8),
2885 struct wiphy_wowlan_tcp_support
{
2886 const struct nl80211_wowlan_tcp_data_token_feature
*tok
;
2887 u32 data_payload_max
;
2888 u32 data_interval_max
;
2889 u32 wake_payload_max
;
2894 * struct wiphy_wowlan_support - WoWLAN support data
2895 * @flags: see &enum wiphy_wowlan_support_flags
2896 * @n_patterns: number of supported wakeup patterns
2897 * (see nl80211.h for the pattern definition)
2898 * @pattern_max_len: maximum length of each pattern
2899 * @pattern_min_len: minimum length of each pattern
2900 * @max_pkt_offset: maximum Rx packet offset
2901 * @max_nd_match_sets: maximum number of matchsets for net-detect,
2902 * similar, but not necessarily identical, to max_match_sets for
2904 * See &struct cfg80211_sched_scan_request.@match_sets for more
2906 * @tcp: TCP wakeup support information
2908 struct wiphy_wowlan_support
{
2911 int pattern_max_len
;
2912 int pattern_min_len
;
2914 int max_nd_match_sets
;
2915 const struct wiphy_wowlan_tcp_support
*tcp
;
2919 * struct wiphy_coalesce_support - coalesce support data
2920 * @n_rules: maximum number of coalesce rules
2921 * @max_delay: maximum supported coalescing delay in msecs
2922 * @n_patterns: number of supported patterns in a rule
2923 * (see nl80211.h for the pattern definition)
2924 * @pattern_max_len: maximum length of each pattern
2925 * @pattern_min_len: minimum length of each pattern
2926 * @max_pkt_offset: maximum Rx packet offset
2928 struct wiphy_coalesce_support
{
2932 int pattern_max_len
;
2933 int pattern_min_len
;
2938 * enum wiphy_vendor_command_flags - validation flags for vendor commands
2939 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
2940 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
2941 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
2942 * (must be combined with %_WDEV or %_NETDEV)
2944 enum wiphy_vendor_command_flags
{
2945 WIPHY_VENDOR_CMD_NEED_WDEV
= BIT(0),
2946 WIPHY_VENDOR_CMD_NEED_NETDEV
= BIT(1),
2947 WIPHY_VENDOR_CMD_NEED_RUNNING
= BIT(2),
2951 * struct wiphy_vendor_command - vendor command definition
2952 * @info: vendor command identifying information, as used in nl80211
2953 * @flags: flags, see &enum wiphy_vendor_command_flags
2954 * @doit: callback for the operation, note that wdev is %NULL if the
2955 * flags didn't ask for a wdev and non-%NULL otherwise; the data
2956 * pointer may be %NULL if userspace provided no data at all
2958 struct wiphy_vendor_command
{
2959 struct nl80211_vendor_cmd_info info
;
2961 int (*doit
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2962 const void *data
, int data_len
);
2966 * struct wiphy - wireless hardware description
2967 * @reg_notifier: the driver's regulatory notification callback,
2968 * note that if your driver uses wiphy_apply_custom_regulatory()
2969 * the reg_notifier's request can be passed as NULL
2970 * @regd: the driver's regulatory domain, if one was requested via
2971 * the regulatory_hint() API. This can be used by the driver
2972 * on the reg_notifier() if it chooses to ignore future
2973 * regulatory domain changes caused by other drivers.
2974 * @signal_type: signal type reported in &struct cfg80211_bss.
2975 * @cipher_suites: supported cipher suites
2976 * @n_cipher_suites: number of supported cipher suites
2977 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2978 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2979 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2980 * -1 = fragmentation disabled, only odd values >= 256 used
2981 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2982 * @_net: the network namespace this wiphy currently lives in
2983 * @perm_addr: permanent MAC address of this device
2984 * @addr_mask: If the device supports multiple MAC addresses by masking,
2985 * set this to a mask with variable bits set to 1, e.g. if the last
2986 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
2987 * variable bits shall be determined by the interfaces added, with
2988 * interfaces not matching the mask being rejected to be brought up.
2989 * @n_addresses: number of addresses in @addresses.
2990 * @addresses: If the device has more than one address, set this pointer
2991 * to a list of addresses (6 bytes each). The first one will be used
2992 * by default for perm_addr. In this case, the mask should be set to
2993 * all-zeroes. In this case it is assumed that the device can handle
2994 * the same number of arbitrary MAC addresses.
2995 * @registered: protects ->resume and ->suspend sysfs callbacks against
2996 * unregister hardware
2997 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2998 * automatically on wiphy renames
2999 * @dev: (virtual) struct device for this wiphy
3000 * @registered: helps synchronize suspend/resume with wiphy unregister
3001 * @wext: wireless extension handlers
3002 * @priv: driver private data (sized according to wiphy_new() parameter)
3003 * @interface_modes: bitmask of interfaces types valid for this wiphy,
3004 * must be set by driver
3005 * @iface_combinations: Valid interface combinations array, should not
3006 * list single interface types.
3007 * @n_iface_combinations: number of entries in @iface_combinations array.
3008 * @software_iftypes: bitmask of software interface types, these are not
3009 * subject to any restrictions since they are purely managed in SW.
3010 * @flags: wiphy flags, see &enum wiphy_flags
3011 * @regulatory_flags: wiphy regulatory flags, see
3012 * &enum ieee80211_regulatory_flags
3013 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
3014 * @bss_priv_size: each BSS struct has private data allocated with it,
3015 * this variable determines its size
3016 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
3018 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
3019 * for in any given scheduled scan
3020 * @max_match_sets: maximum number of match sets the device can handle
3021 * when performing a scheduled scan, 0 if filtering is not
3023 * @max_scan_ie_len: maximum length of user-controlled IEs device can
3024 * add to probe request frames transmitted during a scan, must not
3025 * include fixed IEs like supported rates
3026 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
3028 * @coverage_class: current coverage class
3029 * @fw_version: firmware version for ethtool reporting
3030 * @hw_version: hardware version for ethtool reporting
3031 * @max_num_pmkids: maximum number of PMKIDs supported by device
3032 * @privid: a pointer that drivers can use to identify if an arbitrary
3033 * wiphy is theirs, e.g. in global notifiers
3034 * @bands: information about bands/channels supported by this device
3036 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
3037 * transmitted through nl80211, points to an array indexed by interface
3040 * @available_antennas_tx: bitmap of antennas which are available to be
3041 * configured as TX antennas. Antenna configuration commands will be
3042 * rejected unless this or @available_antennas_rx is set.
3044 * @available_antennas_rx: bitmap of antennas which are available to be
3045 * configured as RX antennas. Antenna configuration commands will be
3046 * rejected unless this or @available_antennas_tx is set.
3048 * @probe_resp_offload:
3049 * Bitmap of supported protocols for probe response offloading.
3050 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
3051 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3053 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
3054 * may request, if implemented.
3056 * @wowlan: WoWLAN support information
3057 * @wowlan_config: current WoWLAN configuration; this should usually not be
3058 * used since access to it is necessarily racy, use the parameter passed
3059 * to the suspend() operation instead.
3061 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
3062 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
3063 * If null, then none can be over-ridden.
3064 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
3065 * If null, then none can be over-ridden.
3067 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
3070 * @extended_capabilities: extended capabilities supported by the driver,
3071 * additional capabilities might be supported by userspace; these are
3072 * the 802.11 extended capabilities ("Extended Capabilities element")
3073 * and are in the same format as in the information element. See
3074 * 802.11-2012 8.4.2.29 for the defined fields.
3075 * @extended_capabilities_mask: mask of the valid values
3076 * @extended_capabilities_len: length of the extended capabilities
3077 * @coalesce: packet coalescing support information
3079 * @vendor_commands: array of vendor commands supported by the hardware
3080 * @n_vendor_commands: number of vendor commands
3081 * @vendor_events: array of vendor events supported by the hardware
3082 * @n_vendor_events: number of vendor events
3084 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
3085 * (including P2P GO) or 0 to indicate no such limit is advertised. The
3086 * driver is allowed to advertise a theoretical limit that it can reach in
3087 * some cases, but may not always reach.
3089 * @max_num_csa_counters: Number of supported csa_counters in beacons
3090 * and probe responses. This value should be set if the driver
3091 * wishes to limit the number of csa counters. Default (0) means
3093 * @max_adj_channel_rssi_comp: max offset of between the channel on which the
3094 * frame was sent and the channel on which the frame was heard for which
3095 * the reported rssi is still valid. If a driver is able to compensate the
3096 * low rssi when a frame is heard on different channel, then it should set
3097 * this variable to the maximal offset for which it can compensate.
3098 * This value should be set in MHz.
3101 /* assign these fields before you register the wiphy */
3103 /* permanent MAC address(es) */
3104 u8 perm_addr
[ETH_ALEN
];
3105 u8 addr_mask
[ETH_ALEN
];
3107 struct mac_address
*addresses
;
3109 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
3111 const struct ieee80211_iface_combination
*iface_combinations
;
3112 int n_iface_combinations
;
3113 u16 software_iftypes
;
3117 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
3118 u16 interface_modes
;
3120 u16 max_acl_mac_addrs
;
3122 u32 flags
, regulatory_flags
, features
;
3126 enum cfg80211_signal_type signal_type
;
3130 u8 max_sched_scan_ssids
;
3132 u16 max_scan_ie_len
;
3133 u16 max_sched_scan_ie_len
;
3135 int n_cipher_suites
;
3136 const u32
*cipher_suites
;
3144 char fw_version
[ETHTOOL_FWVERS_LEN
];
3148 const struct wiphy_wowlan_support
*wowlan
;
3149 struct cfg80211_wowlan
*wowlan_config
;
3152 u16 max_remain_on_channel_duration
;
3156 u32 available_antennas_tx
;
3157 u32 available_antennas_rx
;
3160 * Bitmap of supported protocols for probe response offloading
3161 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3162 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3164 u32 probe_resp_offload
;
3166 const u8
*extended_capabilities
, *extended_capabilities_mask
;
3167 u8 extended_capabilities_len
;
3169 /* If multiple wiphys are registered and you're handed e.g.
3170 * a regular netdev with assigned ieee80211_ptr, you won't
3171 * know whether it points to a wiphy your driver has registered
3172 * or not. Assign this to something global to your driver to
3173 * help determine whether you own this wiphy or not. */
3176 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
3178 /* Lets us get back the wiphy on the callback */
3179 void (*reg_notifier
)(struct wiphy
*wiphy
,
3180 struct regulatory_request
*request
);
3182 /* fields below are read-only, assigned by cfg80211 */
3184 const struct ieee80211_regdomain __rcu
*regd
;
3186 /* the item in /sys/class/ieee80211/ points to this,
3187 * you need use set_wiphy_dev() (see below) */
3190 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3193 /* dir in debugfs: ieee80211/<wiphyname> */
3194 struct dentry
*debugfsdir
;
3196 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
3197 const struct ieee80211_vht_cap
*vht_capa_mod_mask
;
3199 #ifdef CONFIG_NET_NS
3200 /* the network namespace this phy lives in currently */
3204 #ifdef CONFIG_CFG80211_WEXT
3205 const struct iw_handler_def
*wext
;
3208 const struct wiphy_coalesce_support
*coalesce
;
3210 const struct wiphy_vendor_command
*vendor_commands
;
3211 const struct nl80211_vendor_cmd_info
*vendor_events
;
3212 int n_vendor_commands
, n_vendor_events
;
3214 u16 max_ap_assoc_sta
;
3216 u8 max_num_csa_counters
;
3217 u8 max_adj_channel_rssi_comp
;
3219 char priv
[0] __aligned(NETDEV_ALIGN
);
3222 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
3224 return read_pnet(&wiphy
->_net
);
3227 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
3229 write_pnet(&wiphy
->_net
, net
);
3233 * wiphy_priv - return priv from wiphy
3235 * @wiphy: the wiphy whose priv pointer to return
3236 * Return: The priv of @wiphy.
3238 static inline void *wiphy_priv(struct wiphy
*wiphy
)
3241 return &wiphy
->priv
;
3245 * priv_to_wiphy - return the wiphy containing the priv
3247 * @priv: a pointer previously returned by wiphy_priv
3248 * Return: The wiphy of @priv.
3250 static inline struct wiphy
*priv_to_wiphy(void *priv
)
3253 return container_of(priv
, struct wiphy
, priv
);
3257 * set_wiphy_dev - set device pointer for wiphy
3259 * @wiphy: The wiphy whose device to bind
3260 * @dev: The device to parent it to
3262 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
3264 wiphy
->dev
.parent
= dev
;
3268 * wiphy_dev - get wiphy dev pointer
3270 * @wiphy: The wiphy whose device struct to look up
3271 * Return: The dev of @wiphy.
3273 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
3275 return wiphy
->dev
.parent
;
3279 * wiphy_name - get wiphy name
3281 * @wiphy: The wiphy whose name to return
3282 * Return: The name of @wiphy.
3284 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
3286 return dev_name(&wiphy
->dev
);
3290 * wiphy_new_nm - create a new wiphy for use with cfg80211
3292 * @ops: The configuration operations for this device
3293 * @sizeof_priv: The size of the private area to allocate
3294 * @requested_name: Request a particular name.
3295 * NULL is valid value, and means use the default phy%d naming.
3297 * Create a new wiphy and associate the given operations with it.
3298 * @sizeof_priv bytes are allocated for private use.
3300 * Return: A pointer to the new wiphy. This pointer must be
3301 * assigned to each netdev's ieee80211_ptr for proper operation.
3303 struct wiphy
*wiphy_new_nm(const struct cfg80211_ops
*ops
, int sizeof_priv
,
3304 const char *requested_name
);
3307 * wiphy_new - create a new wiphy for use with cfg80211
3309 * @ops: The configuration operations for this device
3310 * @sizeof_priv: The size of the private area to allocate
3312 * Create a new wiphy and associate the given operations with it.
3313 * @sizeof_priv bytes are allocated for private use.
3315 * Return: A pointer to the new wiphy. This pointer must be
3316 * assigned to each netdev's ieee80211_ptr for proper operation.
3318 static inline struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
,
3321 return wiphy_new_nm(ops
, sizeof_priv
, NULL
);
3325 * wiphy_register - register a wiphy with cfg80211
3327 * @wiphy: The wiphy to register.
3329 * Return: A non-negative wiphy index or a negative error code.
3331 int wiphy_register(struct wiphy
*wiphy
);
3334 * wiphy_unregister - deregister a wiphy from cfg80211
3336 * @wiphy: The wiphy to unregister.
3338 * After this call, no more requests can be made with this priv
3339 * pointer, but the call may sleep to wait for an outstanding
3340 * request that is being handled.
3342 void wiphy_unregister(struct wiphy
*wiphy
);
3345 * wiphy_free - free wiphy
3347 * @wiphy: The wiphy to free
3349 void wiphy_free(struct wiphy
*wiphy
);
3351 /* internal structs */
3352 struct cfg80211_conn
;
3353 struct cfg80211_internal_bss
;
3354 struct cfg80211_cached_keys
;
3357 * struct wireless_dev - wireless device state
3359 * For netdevs, this structure must be allocated by the driver
3360 * that uses the ieee80211_ptr field in struct net_device (this
3361 * is intentional so it can be allocated along with the netdev.)
3362 * It need not be registered then as netdev registration will
3363 * be intercepted by cfg80211 to see the new wireless device.
3365 * For non-netdev uses, it must also be allocated by the driver
3366 * in response to the cfg80211 callbacks that require it, as
3367 * there's no netdev registration in that case it may not be
3368 * allocated outside of callback operations that return it.
3370 * @wiphy: pointer to hardware description
3371 * @iftype: interface type
3372 * @list: (private) Used to collect the interfaces
3373 * @netdev: (private) Used to reference back to the netdev, may be %NULL
3374 * @identifier: (private) Identifier used in nl80211 to identify this
3375 * wireless device if it has no netdev
3376 * @current_bss: (private) Used by the internal configuration code
3377 * @chandef: (private) Used by the internal configuration code to track
3378 * the user-set channel definition.
3379 * @preset_chandef: (private) Used by the internal configuration code to
3380 * track the channel to be used for AP later
3381 * @bssid: (private) Used by the internal configuration code
3382 * @ssid: (private) Used by the internal configuration code
3383 * @ssid_len: (private) Used by the internal configuration code
3384 * @mesh_id_len: (private) Used by the internal configuration code
3385 * @mesh_id_up_len: (private) Used by the internal configuration code
3386 * @wext: (private) Used by the internal wireless extensions compat code
3387 * @use_4addr: indicates 4addr mode is used on this interface, must be
3388 * set by driver (if supported) on add_interface BEFORE registering the
3389 * netdev and may otherwise be used by driver read-only, will be update
3390 * by cfg80211 on change_interface
3391 * @mgmt_registrations: list of registrations for management frames
3392 * @mgmt_registrations_lock: lock for the list
3393 * @mtx: mutex used to lock data in this struct, may be used by drivers
3394 * and some API functions require it held
3395 * @beacon_interval: beacon interval used on this device for transmitting
3396 * beacons, 0 when not valid
3397 * @address: The address for this device, valid only if @netdev is %NULL
3398 * @p2p_started: true if this is a P2P Device that has been started
3399 * @cac_started: true if DFS channel availability check has been started
3400 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
3401 * @cac_time_ms: CAC time in ms
3402 * @ps: powersave mode is enabled
3403 * @ps_timeout: dynamic powersave timeout
3404 * @ap_unexpected_nlportid: (private) netlink port ID of application
3405 * registered for unexpected class 3 frames (AP mode)
3406 * @conn: (private) cfg80211 software SME connection state machine data
3407 * @connect_keys: (private) keys to set after connection is established
3408 * @ibss_fixed: (private) IBSS is using fixed BSSID
3409 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
3410 * @event_list: (private) list for internal event processing
3411 * @event_lock: (private) lock for event list
3412 * @owner_nlportid: (private) owner socket port ID
3414 struct wireless_dev
{
3415 struct wiphy
*wiphy
;
3416 enum nl80211_iftype iftype
;
3418 /* the remainder of this struct should be private to cfg80211 */
3419 struct list_head list
;
3420 struct net_device
*netdev
;
3424 struct list_head mgmt_registrations
;
3425 spinlock_t mgmt_registrations_lock
;
3429 bool use_4addr
, p2p_started
;
3431 u8 address
[ETH_ALEN
] __aligned(sizeof(u16
));
3433 /* currently used for IBSS and SME - might be rearranged later */
3434 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3435 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
3436 struct cfg80211_conn
*conn
;
3437 struct cfg80211_cached_keys
*connect_keys
;
3439 struct list_head event_list
;
3440 spinlock_t event_lock
;
3442 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
3443 struct cfg80211_chan_def preset_chandef
;
3444 struct cfg80211_chan_def chandef
;
3447 bool ibss_dfs_possible
;
3452 int beacon_interval
;
3454 u32 ap_unexpected_nlportid
;
3457 unsigned long cac_start_time
;
3458 unsigned int cac_time_ms
;
3462 #ifdef CONFIG_CFG80211_WEXT
3465 struct cfg80211_ibss_params ibss
;
3466 struct cfg80211_connect_params connect
;
3467 struct cfg80211_cached_keys
*keys
;
3470 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
3471 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3472 s8 default_key
, default_mgmt_key
;
3473 bool prev_bssid_valid
;
3478 static inline u8
*wdev_address(struct wireless_dev
*wdev
)
3481 return wdev
->netdev
->dev_addr
;
3482 return wdev
->address
;
3486 * wdev_priv - return wiphy priv from wireless_dev
3488 * @wdev: The wireless device whose wiphy's priv pointer to return
3489 * Return: The wiphy priv of @wdev.
3491 static inline void *wdev_priv(struct wireless_dev
*wdev
)
3494 return wiphy_priv(wdev
->wiphy
);
3498 * DOC: Utility functions
3500 * cfg80211 offers a number of utility functions that can be useful.
3504 * ieee80211_channel_to_frequency - convert channel number to frequency
3505 * @chan: channel number
3506 * @band: band, necessary due to channel number overlap
3507 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
3509 int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
3512 * ieee80211_frequency_to_channel - convert frequency to channel number
3513 * @freq: center frequency
3514 * Return: The corresponding channel, or 0 if the conversion failed.
3516 int ieee80211_frequency_to_channel(int freq
);
3519 * Name indirection necessary because the ieee80211 code also has
3520 * a function named "ieee80211_get_channel", so if you include
3521 * cfg80211's header file you get cfg80211's version, if you try
3522 * to include both header files you'll (rightfully!) get a symbol
3525 struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
3528 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
3529 * @wiphy: the struct wiphy to get the channel for
3530 * @freq: the center frequency of the channel
3531 * Return: The channel struct from @wiphy at @freq.
3533 static inline struct ieee80211_channel
*
3534 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
3536 return __ieee80211_get_channel(wiphy
, freq
);
3540 * ieee80211_get_response_rate - get basic rate for a given rate
3542 * @sband: the band to look for rates in
3543 * @basic_rates: bitmap of basic rates
3544 * @bitrate: the bitrate for which to find the basic rate
3546 * Return: The basic rate corresponding to a given bitrate, that
3547 * is the next lower bitrate contained in the basic rate map,
3548 * which is, for this function, given as a bitmap of indices of
3549 * rates in the band's bitrate table.
3551 struct ieee80211_rate
*
3552 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
3553 u32 basic_rates
, int bitrate
);
3556 * ieee80211_mandatory_rates - get mandatory rates for a given band
3557 * @sband: the band to look for rates in
3558 * @scan_width: width of the control channel
3560 * This function returns a bitmap of the mandatory rates for the given
3561 * band, bits are set according to the rate position in the bitrates array.
3563 u32
ieee80211_mandatory_rates(struct ieee80211_supported_band
*sband
,
3564 enum nl80211_bss_scan_width scan_width
);
3567 * Radiotap parsing functions -- for controlled injection support
3569 * Implemented in net/wireless/radiotap.c
3570 * Documentation in Documentation/networking/radiotap-headers.txt
3573 struct radiotap_align_size
{
3574 uint8_t align
:4, size
:4;
3577 struct ieee80211_radiotap_namespace
{
3578 const struct radiotap_align_size
*align_size
;
3584 struct ieee80211_radiotap_vendor_namespaces
{
3585 const struct ieee80211_radiotap_namespace
*ns
;
3590 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3591 * @this_arg_index: index of current arg, valid after each successful call
3592 * to ieee80211_radiotap_iterator_next()
3593 * @this_arg: pointer to current radiotap arg; it is valid after each
3594 * call to ieee80211_radiotap_iterator_next() but also after
3595 * ieee80211_radiotap_iterator_init() where it will point to
3596 * the beginning of the actual data portion
3597 * @this_arg_size: length of the current arg, for convenience
3598 * @current_namespace: pointer to the current namespace definition
3599 * (or internally %NULL if the current namespace is unknown)
3600 * @is_radiotap_ns: indicates whether the current namespace is the default
3601 * radiotap namespace or not
3603 * @_rtheader: pointer to the radiotap header we are walking through
3604 * @_max_length: length of radiotap header in cpu byte ordering
3605 * @_arg_index: next argument index
3606 * @_arg: next argument pointer
3607 * @_next_bitmap: internal pointer to next present u32
3608 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3609 * @_vns: vendor namespace definitions
3610 * @_next_ns_data: beginning of the next namespace's data
3611 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
3614 * Describes the radiotap parser state. Fields prefixed with an underscore
3615 * must not be used by users of the parser, only by the parser internally.
3618 struct ieee80211_radiotap_iterator
{
3619 struct ieee80211_radiotap_header
*_rtheader
;
3620 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
3621 const struct ieee80211_radiotap_namespace
*current_namespace
;
3623 unsigned char *_arg
, *_next_ns_data
;
3624 __le32
*_next_bitmap
;
3626 unsigned char *this_arg
;
3634 uint32_t _bitmap_shifter
;
3639 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator
*iterator
,
3640 struct ieee80211_radiotap_header
*radiotap_header
,
3642 const struct ieee80211_radiotap_vendor_namespaces
*vns
);
3645 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator
*iterator
);
3648 extern const unsigned char rfc1042_header
[6];
3649 extern const unsigned char bridge_tunnel_header
[6];
3652 * ieee80211_get_hdrlen_from_skb - get header length from data
3656 * Given an skb with a raw 802.11 header at the data pointer this function
3657 * returns the 802.11 header length.
3659 * Return: The 802.11 header length in bytes (not including encryption
3660 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
3663 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
3666 * ieee80211_hdrlen - get header length in bytes from frame control
3667 * @fc: frame control field in little-endian format
3668 * Return: The header length in bytes.
3670 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
3673 * ieee80211_get_mesh_hdrlen - get mesh extension header length
3674 * @meshhdr: the mesh extension header, only the flags field
3675 * (first byte) will be accessed
3676 * Return: The length of the extension header, which is always at
3677 * least 6 bytes and at most 18 if address 5 and 6 are present.
3679 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr
*meshhdr
);
3682 * DOC: Data path helpers
3684 * In addition to generic utilities, cfg80211 also offers
3685 * functions that help implement the data path for devices
3686 * that do not do the 802.11/802.3 conversion on the device.
3690 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
3691 * @skb: the 802.11 data frame
3692 * @addr: the device MAC address
3693 * @iftype: the virtual interface type
3694 * Return: 0 on success. Non-zero on error.
3696 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
3697 enum nl80211_iftype iftype
);
3700 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
3701 * @skb: the 802.3 frame
3702 * @addr: the device MAC address
3703 * @iftype: the virtual interface type
3704 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
3705 * @qos: build 802.11 QoS data frame
3706 * Return: 0 on success, or a negative error code.
3708 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
3709 enum nl80211_iftype iftype
, const u8
*bssid
,
3713 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
3715 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
3716 * 802.3 frames. The @list will be empty if the decode fails. The
3717 * @skb is consumed after the function returns.
3719 * @skb: The input IEEE 802.11n A-MSDU frame.
3720 * @list: The output list of 802.3 frames. It must be allocated and
3721 * initialized by by the caller.
3722 * @addr: The device MAC address.
3723 * @iftype: The device interface type.
3724 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
3725 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
3727 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
3728 const u8
*addr
, enum nl80211_iftype iftype
,
3729 const unsigned int extra_headroom
,
3730 bool has_80211_header
);
3733 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
3734 * @skb: the data frame
3735 * @qos_map: Interworking QoS mapping or %NULL if not in use
3736 * Return: The 802.1p/1d tag.
3738 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
,
3739 struct cfg80211_qos_map
*qos_map
);
3742 * cfg80211_find_ie - find information element in data
3745 * @ies: data consisting of IEs
3746 * @len: length of data
3748 * Return: %NULL if the element ID could not be found or if
3749 * the element is invalid (claims to be longer than the given
3750 * data), or a pointer to the first byte of the requested
3751 * element, that is the byte containing the element ID.
3753 * Note: There are no checks on the element length other than
3754 * having to fit into the given data.
3756 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
3759 * cfg80211_find_vendor_ie - find vendor specific information element in data
3762 * @oui_type: vendor-specific OUI type
3763 * @ies: data consisting of IEs
3764 * @len: length of data
3766 * Return: %NULL if the vendor specific element ID could not be found or if the
3767 * element is invalid (claims to be longer than the given data), or a pointer to
3768 * the first byte of the requested element, that is the byte containing the
3771 * Note: There are no checks on the element length other than having to fit into
3774 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
3775 const u8
*ies
, int len
);
3778 * DOC: Regulatory enforcement infrastructure
3784 * regulatory_hint - driver hint to the wireless core a regulatory domain
3785 * @wiphy: the wireless device giving the hint (used only for reporting
3787 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3788 * should be in. If @rd is set this should be NULL. Note that if you
3789 * set this to NULL you should still set rd->alpha2 to some accepted
3792 * Wireless drivers can use this function to hint to the wireless core
3793 * what it believes should be the current regulatory domain by
3794 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3795 * domain should be in or by providing a completely build regulatory domain.
3796 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3797 * for a regulatory domain structure for the respective country.
3799 * The wiphy must have been registered to cfg80211 prior to this call.
3800 * For cfg80211 drivers this means you must first use wiphy_register(),
3801 * for mac80211 drivers you must first use ieee80211_register_hw().
3803 * Drivers should check the return value, its possible you can get
3806 * Return: 0 on success. -ENOMEM.
3808 int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
3811 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
3812 * @wiphy: the wireless device we want to process the regulatory domain on
3813 * @rd: the regulatory domain informatoin to use for this wiphy
3815 * Set the regulatory domain information for self-managed wiphys, only they
3816 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
3819 * Return: 0 on success. -EINVAL, -EPERM
3821 int regulatory_set_wiphy_regd(struct wiphy
*wiphy
,
3822 struct ieee80211_regdomain
*rd
);
3825 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3826 * @wiphy: the wireless device we want to process the regulatory domain on
3827 * @regd: the custom regulatory domain to use for this wiphy
3829 * Drivers can sometimes have custom regulatory domains which do not apply
3830 * to a specific country. Drivers can use this to apply such custom regulatory
3831 * domains. This routine must be called prior to wiphy registration. The
3832 * custom regulatory domain will be trusted completely and as such previous
3833 * default channel settings will be disregarded. If no rule is found for a
3834 * channel on the regulatory domain the channel will be disabled.
3835 * Drivers using this for a wiphy should also set the wiphy flag
3836 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
3837 * that called this helper.
3839 void wiphy_apply_custom_regulatory(struct wiphy
*wiphy
,
3840 const struct ieee80211_regdomain
*regd
);
3843 * freq_reg_info - get regulatory information for the given frequency
3844 * @wiphy: the wiphy for which we want to process this rule for
3845 * @center_freq: Frequency in KHz for which we want regulatory information for
3847 * Use this function to get the regulatory rule for a specific frequency on
3848 * a given wireless device. If the device has a specific regulatory domain
3849 * it wants to follow we respect that unless a country IE has been received
3850 * and processed already.
3852 * Return: A valid pointer, or, when an error occurs, for example if no rule
3853 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3854 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3855 * value will be -ERANGE if we determine the given center_freq does not even
3856 * have a regulatory rule for a frequency range in the center_freq's band.
3857 * See freq_in_rule_band() for our current definition of a band -- this is
3858 * purely subjective and right now it's 802.11 specific.
3860 const struct ieee80211_reg_rule
*freq_reg_info(struct wiphy
*wiphy
,
3864 * reg_initiator_name - map regulatory request initiator enum to name
3865 * @initiator: the regulatory request initiator
3867 * You can use this to map the regulatory request initiator enum to a
3868 * proper string representation.
3870 const char *reg_initiator_name(enum nl80211_reg_initiator initiator
);
3873 * callbacks for asynchronous cfg80211 methods, notification
3874 * functions and BSS handling helpers
3878 * cfg80211_scan_done - notify that scan finished
3880 * @request: the corresponding scan request
3881 * @aborted: set to true if the scan was aborted for any reason,
3882 * userspace will be notified of that
3884 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
3887 * cfg80211_sched_scan_results - notify that new scan results are available
3889 * @wiphy: the wiphy which got scheduled scan results
3891 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
3894 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3896 * @wiphy: the wiphy on which the scheduled scan stopped
3898 * The driver can call this function to inform cfg80211 that the
3899 * scheduled scan had to be stopped, for whatever reason. The driver
3900 * is then called back via the sched_scan_stop operation when done.
3902 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
3905 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped
3907 * @wiphy: the wiphy on which the scheduled scan stopped
3909 * The driver can call this function to inform cfg80211 that the
3910 * scheduled scan had to be stopped, for whatever reason. The driver
3911 * is then called back via the sched_scan_stop operation when done.
3912 * This function should be called with rtnl locked.
3914 void cfg80211_sched_scan_stopped_rtnl(struct wiphy
*wiphy
);
3917 * cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame
3919 * @wiphy: the wiphy reporting the BSS
3920 * @rx_channel: The channel the frame was received on
3921 * @scan_width: width of the control channel
3922 * @mgmt: the management frame (probe response or beacon)
3923 * @len: length of the management frame
3924 * @signal: the signal strength, type depends on the wiphy's signal_type
3925 * @gfp: context flags
3927 * This informs cfg80211 that BSS information was found and
3928 * the BSS should be updated/added.
3930 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3931 * Or %NULL on error.
3933 struct cfg80211_bss
* __must_check
3934 cfg80211_inform_bss_width_frame(struct wiphy
*wiphy
,
3935 struct ieee80211_channel
*rx_channel
,
3936 enum nl80211_bss_scan_width scan_width
,
3937 struct ieee80211_mgmt
*mgmt
, size_t len
,
3938 s32 signal
, gfp_t gfp
);
3940 static inline struct cfg80211_bss
* __must_check
3941 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
3942 struct ieee80211_channel
*rx_channel
,
3943 struct ieee80211_mgmt
*mgmt
, size_t len
,
3944 s32 signal
, gfp_t gfp
)
3946 return cfg80211_inform_bss_width_frame(wiphy
, rx_channel
,
3947 NL80211_BSS_CHAN_WIDTH_20
,
3948 mgmt
, len
, signal
, gfp
);
3952 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
3953 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
3954 * from a beacon or probe response
3955 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
3956 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
3958 enum cfg80211_bss_frame_type
{
3959 CFG80211_BSS_FTYPE_UNKNOWN
,
3960 CFG80211_BSS_FTYPE_BEACON
,
3961 CFG80211_BSS_FTYPE_PRESP
,
3965 * cfg80211_inform_bss_width - inform cfg80211 of a new BSS
3967 * @wiphy: the wiphy reporting the BSS
3968 * @rx_channel: The channel the frame was received on
3969 * @scan_width: width of the control channel
3970 * @ftype: frame type (if known)
3971 * @bssid: the BSSID of the BSS
3972 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3973 * @capability: the capability field sent by the peer
3974 * @beacon_interval: the beacon interval announced by the peer
3975 * @ie: additional IEs sent by the peer
3976 * @ielen: length of the additional IEs
3977 * @signal: the signal strength, type depends on the wiphy's signal_type
3978 * @gfp: context flags
3980 * This informs cfg80211 that BSS information was found and
3981 * the BSS should be updated/added.
3983 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3984 * Or %NULL on error.
3986 struct cfg80211_bss
* __must_check
3987 cfg80211_inform_bss_width(struct wiphy
*wiphy
,
3988 struct ieee80211_channel
*rx_channel
,
3989 enum nl80211_bss_scan_width scan_width
,
3990 enum cfg80211_bss_frame_type ftype
,
3991 const u8
*bssid
, u64 tsf
, u16 capability
,
3992 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3993 s32 signal
, gfp_t gfp
);
3995 static inline struct cfg80211_bss
* __must_check
3996 cfg80211_inform_bss(struct wiphy
*wiphy
,
3997 struct ieee80211_channel
*rx_channel
,
3998 enum cfg80211_bss_frame_type ftype
,
3999 const u8
*bssid
, u64 tsf
, u16 capability
,
4000 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
4001 s32 signal
, gfp_t gfp
)
4003 return cfg80211_inform_bss_width(wiphy
, rx_channel
,
4004 NL80211_BSS_CHAN_WIDTH_20
, ftype
,
4005 bssid
, tsf
, capability
,
4006 beacon_interval
, ie
, ielen
, signal
,
4010 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
4011 struct ieee80211_channel
*channel
,
4013 const u8
*ssid
, size_t ssid_len
,
4014 u16 capa_mask
, u16 capa_val
);
4015 static inline struct cfg80211_bss
*
4016 cfg80211_get_ibss(struct wiphy
*wiphy
,
4017 struct ieee80211_channel
*channel
,
4018 const u8
*ssid
, size_t ssid_len
)
4020 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
4021 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
4025 * cfg80211_ref_bss - reference BSS struct
4026 * @wiphy: the wiphy this BSS struct belongs to
4027 * @bss: the BSS struct to reference
4029 * Increments the refcount of the given BSS struct.
4031 void cfg80211_ref_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4034 * cfg80211_put_bss - unref BSS struct
4035 * @wiphy: the wiphy this BSS struct belongs to
4036 * @bss: the BSS struct
4038 * Decrements the refcount of the given BSS struct.
4040 void cfg80211_put_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4043 * cfg80211_unlink_bss - unlink BSS from internal data structures
4045 * @bss: the bss to remove
4047 * This function removes the given BSS from the internal data structures
4048 * thereby making it no longer show up in scan results etc. Use this
4049 * function when you detect a BSS is gone. Normally BSSes will also time
4050 * out, so it is not necessary to use this function at all.
4052 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4054 static inline enum nl80211_bss_scan_width
4055 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def
*chandef
)
4057 switch (chandef
->width
) {
4058 case NL80211_CHAN_WIDTH_5
:
4059 return NL80211_BSS_CHAN_WIDTH_5
;
4060 case NL80211_CHAN_WIDTH_10
:
4061 return NL80211_BSS_CHAN_WIDTH_10
;
4063 return NL80211_BSS_CHAN_WIDTH_20
;
4068 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
4069 * @dev: network device
4070 * @buf: authentication frame (header + body)
4071 * @len: length of the frame data
4073 * This function is called whenever an authentication, disassociation or
4074 * deauthentication frame has been received and processed in station mode.
4075 * After being asked to authenticate via cfg80211_ops::auth() the driver must
4076 * call either this function or cfg80211_auth_timeout().
4077 * After being asked to associate via cfg80211_ops::assoc() the driver must
4078 * call either this function or cfg80211_auth_timeout().
4079 * While connected, the driver must calls this for received and processed
4080 * disassociation and deauthentication frames. If the frame couldn't be used
4081 * because it was unprotected, the driver must call the function
4082 * cfg80211_rx_unprot_mlme_mgmt() instead.
4084 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4086 void cfg80211_rx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
4089 * cfg80211_auth_timeout - notification of timed out authentication
4090 * @dev: network device
4091 * @addr: The MAC address of the device with which the authentication timed out
4093 * This function may sleep. The caller must hold the corresponding wdev's
4096 void cfg80211_auth_timeout(struct net_device
*dev
, const u8
*addr
);
4099 * cfg80211_rx_assoc_resp - notification of processed association response
4100 * @dev: network device
4101 * @bss: the BSS that association was requested with, ownership of the pointer
4102 * moves to cfg80211 in this call
4103 * @buf: authentication frame (header + body)
4104 * @len: length of the frame data
4105 * @uapsd_queues: bitmap of ACs configured to uapsd. -1 if n/a.
4107 * After being asked to associate via cfg80211_ops::assoc() the driver must
4108 * call either this function or cfg80211_auth_timeout().
4110 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4112 void cfg80211_rx_assoc_resp(struct net_device
*dev
,
4113 struct cfg80211_bss
*bss
,
4114 const u8
*buf
, size_t len
,
4118 * cfg80211_assoc_timeout - notification of timed out association
4119 * @dev: network device
4120 * @bss: The BSS entry with which association timed out.
4122 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4124 void cfg80211_assoc_timeout(struct net_device
*dev
, struct cfg80211_bss
*bss
);
4127 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
4128 * @dev: network device
4129 * @buf: 802.11 frame (header + body)
4130 * @len: length of the frame data
4132 * This function is called whenever deauthentication has been processed in
4133 * station mode. This includes both received deauthentication frames and
4134 * locally generated ones. This function may sleep. The caller must hold the
4135 * corresponding wdev's mutex.
4137 void cfg80211_tx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
4140 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
4141 * @dev: network device
4142 * @buf: deauthentication frame (header + body)
4143 * @len: length of the frame data
4145 * This function is called whenever a received deauthentication or dissassoc
4146 * frame has been dropped in station mode because of MFP being used but the
4147 * frame was not protected. This function may sleep.
4149 void cfg80211_rx_unprot_mlme_mgmt(struct net_device
*dev
,
4150 const u8
*buf
, size_t len
);
4153 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
4154 * @dev: network device
4155 * @addr: The source MAC address of the frame
4156 * @key_type: The key type that the received frame used
4157 * @key_id: Key identifier (0..3). Can be -1 if missing.
4158 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
4159 * @gfp: allocation flags
4161 * This function is called whenever the local MAC detects a MIC failure in a
4162 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
4165 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
4166 enum nl80211_key_type key_type
, int key_id
,
4167 const u8
*tsc
, gfp_t gfp
);
4170 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
4172 * @dev: network device
4173 * @bssid: the BSSID of the IBSS joined
4174 * @channel: the channel of the IBSS joined
4175 * @gfp: allocation flags
4177 * This function notifies cfg80211 that the device joined an IBSS or
4178 * switched to a different BSSID. Before this function can be called,
4179 * either a beacon has to have been received from the IBSS, or one of
4180 * the cfg80211_inform_bss{,_frame} functions must have been called
4181 * with the locally generated beacon -- this guarantees that there is
4182 * always a scan result for this IBSS. cfg80211 will handle the rest.
4184 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
,
4185 struct ieee80211_channel
*channel
, gfp_t gfp
);
4188 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
4190 * @dev: network device
4191 * @macaddr: the MAC address of the new candidate
4192 * @ie: information elements advertised by the peer candidate
4193 * @ie_len: lenght of the information elements buffer
4194 * @gfp: allocation flags
4196 * This function notifies cfg80211 that the mesh peer candidate has been
4197 * detected, most likely via a beacon or, less likely, via a probe response.
4198 * cfg80211 then sends a notification to userspace.
4200 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
4201 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
4204 * DOC: RFkill integration
4206 * RFkill integration in cfg80211 is almost invisible to drivers,
4207 * as cfg80211 automatically registers an rfkill instance for each
4208 * wireless device it knows about. Soft kill is also translated
4209 * into disconnecting and turning all interfaces off, drivers are
4210 * expected to turn off the device when all interfaces are down.
4212 * However, devices may have a hard RFkill line, in which case they
4213 * also need to interact with the rfkill subsystem, via cfg80211.
4214 * They can do this with a few helper functions documented here.
4218 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
4220 * @blocked: block status
4222 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
4225 * wiphy_rfkill_start_polling - start polling rfkill
4228 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
4231 * wiphy_rfkill_stop_polling - stop polling rfkill
4234 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
4237 * DOC: Vendor commands
4239 * Occasionally, there are special protocol or firmware features that
4240 * can't be implemented very openly. For this and similar cases, the
4241 * vendor command functionality allows implementing the features with
4242 * (typically closed-source) userspace and firmware, using nl80211 as
4243 * the configuration mechanism.
4245 * A driver supporting vendor commands must register them as an array
4246 * in struct wiphy, with handlers for each one, each command has an
4247 * OUI and sub command ID to identify it.
4249 * Note that this feature should not be (ab)used to implement protocol
4250 * features that could openly be shared across drivers. In particular,
4251 * it must never be required to use vendor commands to implement any
4252 * "normal" functionality that higher-level userspace like connection
4253 * managers etc. need.
4256 struct sk_buff
*__cfg80211_alloc_reply_skb(struct wiphy
*wiphy
,
4257 enum nl80211_commands cmd
,
4258 enum nl80211_attrs attr
,
4261 struct sk_buff
*__cfg80211_alloc_event_skb(struct wiphy
*wiphy
,
4262 enum nl80211_commands cmd
,
4263 enum nl80211_attrs attr
,
4264 int vendor_event_idx
,
4265 int approxlen
, gfp_t gfp
);
4267 void __cfg80211_send_event_skb(struct sk_buff
*skb
, gfp_t gfp
);
4270 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
4272 * @approxlen: an upper bound of the length of the data that will
4273 * be put into the skb
4275 * This function allocates and pre-fills an skb for a reply to
4276 * a vendor command. Since it is intended for a reply, calling
4277 * it outside of a vendor command's doit() operation is invalid.
4279 * The returned skb is pre-filled with some identifying data in
4280 * a way that any data that is put into the skb (with skb_put(),
4281 * nla_put() or similar) will end up being within the
4282 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
4283 * with the skb is adding data for the corresponding userspace tool
4284 * which can then read that data out of the vendor data attribute.
4285 * You must not modify the skb in any other way.
4287 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
4288 * its error code as the result of the doit() operation.
4290 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4292 static inline struct sk_buff
*
4293 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4295 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_VENDOR
,
4296 NL80211_ATTR_VENDOR_DATA
, approxlen
);
4300 * cfg80211_vendor_cmd_reply - send the reply skb
4301 * @skb: The skb, must have been allocated with
4302 * cfg80211_vendor_cmd_alloc_reply_skb()
4304 * Since calling this function will usually be the last thing
4305 * before returning from the vendor command doit() you should
4306 * return the error code. Note that this function consumes the
4307 * skb regardless of the return value.
4309 * Return: An error code or 0 on success.
4311 int cfg80211_vendor_cmd_reply(struct sk_buff
*skb
);
4314 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
4316 * @event_idx: index of the vendor event in the wiphy's vendor_events
4317 * @approxlen: an upper bound of the length of the data that will
4318 * be put into the skb
4319 * @gfp: allocation flags
4321 * This function allocates and pre-fills an skb for an event on the
4322 * vendor-specific multicast group.
4324 * When done filling the skb, call cfg80211_vendor_event() with the
4325 * skb to send the event.
4327 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4329 static inline struct sk_buff
*
4330 cfg80211_vendor_event_alloc(struct wiphy
*wiphy
, int approxlen
,
4331 int event_idx
, gfp_t gfp
)
4333 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_VENDOR
,
4334 NL80211_ATTR_VENDOR_DATA
,
4335 event_idx
, approxlen
, gfp
);
4339 * cfg80211_vendor_event - send the event
4340 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
4341 * @gfp: allocation flags
4343 * This function sends the given @skb, which must have been allocated
4344 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
4346 static inline void cfg80211_vendor_event(struct sk_buff
*skb
, gfp_t gfp
)
4348 __cfg80211_send_event_skb(skb
, gfp
);
4351 #ifdef CONFIG_NL80211_TESTMODE
4355 * Test mode is a set of utility functions to allow drivers to
4356 * interact with driver-specific tools to aid, for instance,
4357 * factory programming.
4359 * This chapter describes how drivers interact with it, for more
4360 * information see the nl80211 book's chapter on it.
4364 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
4366 * @approxlen: an upper bound of the length of the data that will
4367 * be put into the skb
4369 * This function allocates and pre-fills an skb for a reply to
4370 * the testmode command. Since it is intended for a reply, calling
4371 * it outside of the @testmode_cmd operation is invalid.
4373 * The returned skb is pre-filled with the wiphy index and set up in
4374 * a way that any data that is put into the skb (with skb_put(),
4375 * nla_put() or similar) will end up being within the
4376 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
4377 * with the skb is adding data for the corresponding userspace tool
4378 * which can then read that data out of the testdata attribute. You
4379 * must not modify the skb in any other way.
4381 * When done, call cfg80211_testmode_reply() with the skb and return
4382 * its error code as the result of the @testmode_cmd operation.
4384 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4386 static inline struct sk_buff
*
4387 cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4389 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_TESTMODE
,
4390 NL80211_ATTR_TESTDATA
, approxlen
);
4394 * cfg80211_testmode_reply - send the reply skb
4395 * @skb: The skb, must have been allocated with
4396 * cfg80211_testmode_alloc_reply_skb()
4398 * Since calling this function will usually be the last thing
4399 * before returning from the @testmode_cmd you should return
4400 * the error code. Note that this function consumes the skb
4401 * regardless of the return value.
4403 * Return: An error code or 0 on success.
4405 static inline int cfg80211_testmode_reply(struct sk_buff
*skb
)
4407 return cfg80211_vendor_cmd_reply(skb
);
4411 * cfg80211_testmode_alloc_event_skb - allocate testmode event
4413 * @approxlen: an upper bound of the length of the data that will
4414 * be put into the skb
4415 * @gfp: allocation flags
4417 * This function allocates and pre-fills an skb for an event on the
4418 * testmode multicast group.
4420 * The returned skb is set up in the same way as with
4421 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
4422 * there, you should simply add data to it that will then end up in the
4423 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
4426 * When done filling the skb, call cfg80211_testmode_event() with the
4427 * skb to send the event.
4429 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4431 static inline struct sk_buff
*
4432 cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
, int approxlen
, gfp_t gfp
)
4434 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_TESTMODE
,
4435 NL80211_ATTR_TESTDATA
, -1,
4440 * cfg80211_testmode_event - send the event
4441 * @skb: The skb, must have been allocated with
4442 * cfg80211_testmode_alloc_event_skb()
4443 * @gfp: allocation flags
4445 * This function sends the given @skb, which must have been allocated
4446 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
4449 static inline void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
)
4451 __cfg80211_send_event_skb(skb
, gfp
);
4454 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
4455 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
4457 #define CFG80211_TESTMODE_CMD(cmd)
4458 #define CFG80211_TESTMODE_DUMP(cmd)
4462 * cfg80211_connect_result - notify cfg80211 of connection result
4464 * @dev: network device
4465 * @bssid: the BSSID of the AP
4466 * @req_ie: association request IEs (maybe be %NULL)
4467 * @req_ie_len: association request IEs length
4468 * @resp_ie: association response IEs (may be %NULL)
4469 * @resp_ie_len: assoc response IEs length
4470 * @status: status code, 0 for successful connection, use
4471 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4472 * the real status code for failures.
4473 * @gfp: allocation flags
4475 * It should be called by the underlying driver whenever connect() has
4478 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
4479 const u8
*req_ie
, size_t req_ie_len
,
4480 const u8
*resp_ie
, size_t resp_ie_len
,
4481 u16 status
, gfp_t gfp
);
4484 * cfg80211_roamed - notify cfg80211 of roaming
4486 * @dev: network device
4487 * @channel: the channel of the new AP
4488 * @bssid: the BSSID of the new AP
4489 * @req_ie: association request IEs (maybe be %NULL)
4490 * @req_ie_len: association request IEs length
4491 * @resp_ie: association response IEs (may be %NULL)
4492 * @resp_ie_len: assoc response IEs length
4493 * @gfp: allocation flags
4495 * It should be called by the underlying driver whenever it roamed
4496 * from one AP to another while connected.
4498 void cfg80211_roamed(struct net_device
*dev
,
4499 struct ieee80211_channel
*channel
,
4501 const u8
*req_ie
, size_t req_ie_len
,
4502 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4505 * cfg80211_roamed_bss - notify cfg80211 of roaming
4507 * @dev: network device
4508 * @bss: entry of bss to which STA got roamed
4509 * @req_ie: association request IEs (maybe be %NULL)
4510 * @req_ie_len: association request IEs length
4511 * @resp_ie: association response IEs (may be %NULL)
4512 * @resp_ie_len: assoc response IEs length
4513 * @gfp: allocation flags
4515 * This is just a wrapper to notify cfg80211 of roaming event with driver
4516 * passing bss to avoid a race in timeout of the bss entry. It should be
4517 * called by the underlying driver whenever it roamed from one AP to another
4518 * while connected. Drivers which have roaming implemented in firmware
4519 * may use this function to avoid a race in bss entry timeout where the bss
4520 * entry of the new AP is seen in the driver, but gets timed out by the time
4521 * it is accessed in __cfg80211_roamed() due to delay in scheduling
4522 * rdev->event_work. In case of any failures, the reference is released
4523 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
4524 * it will be released while diconneting from the current bss.
4526 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
4527 const u8
*req_ie
, size_t req_ie_len
,
4528 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4531 * cfg80211_disconnected - notify cfg80211 that connection was dropped
4533 * @dev: network device
4534 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
4535 * @ie_len: length of IEs
4536 * @reason: reason code for the disconnection, set it to 0 if unknown
4537 * @gfp: allocation flags
4539 * After it calls this function, the driver should enter an idle state
4540 * and not try to connect to any AP any more.
4542 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
4543 const u8
*ie
, size_t ie_len
, gfp_t gfp
);
4546 * cfg80211_ready_on_channel - notification of remain_on_channel start
4547 * @wdev: wireless device
4548 * @cookie: the request cookie
4549 * @chan: The current channel (from remain_on_channel request)
4550 * @duration: Duration in milliseconds that the driver intents to remain on the
4552 * @gfp: allocation flags
4554 void cfg80211_ready_on_channel(struct wireless_dev
*wdev
, u64 cookie
,
4555 struct ieee80211_channel
*chan
,
4556 unsigned int duration
, gfp_t gfp
);
4559 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
4560 * @wdev: wireless device
4561 * @cookie: the request cookie
4562 * @chan: The current channel (from remain_on_channel request)
4563 * @gfp: allocation flags
4565 void cfg80211_remain_on_channel_expired(struct wireless_dev
*wdev
, u64 cookie
,
4566 struct ieee80211_channel
*chan
,
4571 * cfg80211_new_sta - notify userspace about station
4574 * @mac_addr: the station's address
4575 * @sinfo: the station information
4576 * @gfp: allocation flags
4578 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
4579 struct station_info
*sinfo
, gfp_t gfp
);
4582 * cfg80211_del_sta - notify userspace about deletion of a station
4585 * @mac_addr: the station's address
4586 * @gfp: allocation flags
4588 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
4591 * cfg80211_conn_failed - connection request failed notification
4594 * @mac_addr: the station's address
4595 * @reason: the reason for connection failure
4596 * @gfp: allocation flags
4598 * Whenever a station tries to connect to an AP and if the station
4599 * could not connect to the AP as the AP has rejected the connection
4600 * for some reasons, this function is called.
4602 * The reason for connection failure can be any of the value from
4603 * nl80211_connect_failed_reason enum
4605 void cfg80211_conn_failed(struct net_device
*dev
, const u8
*mac_addr
,
4606 enum nl80211_connect_failed_reason reason
,
4610 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
4611 * @wdev: wireless device receiving the frame
4612 * @freq: Frequency on which the frame was received in MHz
4613 * @sig_dbm: signal strength in mBm, or 0 if unknown
4614 * @buf: Management frame (header + body)
4615 * @len: length of the frame data
4616 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
4618 * This function is called whenever an Action frame is received for a station
4619 * mode interface, but is not processed in kernel.
4621 * Return: %true if a user space application has registered for this frame.
4622 * For action frames, that makes it responsible for rejecting unrecognized
4623 * action frames; %false otherwise, in which case for action frames the
4624 * driver is responsible for rejecting the frame.
4626 bool cfg80211_rx_mgmt(struct wireless_dev
*wdev
, int freq
, int sig_dbm
,
4627 const u8
*buf
, size_t len
, u32 flags
);
4630 * cfg80211_mgmt_tx_status - notification of TX status for management frame
4631 * @wdev: wireless device receiving the frame
4632 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
4633 * @buf: Management frame (header + body)
4634 * @len: length of the frame data
4635 * @ack: Whether frame was acknowledged
4636 * @gfp: context flags
4638 * This function is called whenever a management frame was requested to be
4639 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
4640 * transmission attempt.
4642 void cfg80211_mgmt_tx_status(struct wireless_dev
*wdev
, u64 cookie
,
4643 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
4647 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
4648 * @dev: network device
4649 * @rssi_event: the triggered RSSI event
4650 * @gfp: context flags
4652 * This function is called when a configured connection quality monitoring
4653 * rssi threshold reached event occurs.
4655 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
4656 enum nl80211_cqm_rssi_threshold_event rssi_event
,
4660 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
4661 * @dev: network device
4662 * @peer: peer's MAC address
4663 * @num_packets: how many packets were lost -- should be a fixed threshold
4664 * but probably no less than maybe 50, or maybe a throughput dependent
4665 * threshold (to account for temporary interference)
4666 * @gfp: context flags
4668 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
4669 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
4672 * cfg80211_cqm_txe_notify - TX error rate event
4673 * @dev: network device
4674 * @peer: peer's MAC address
4675 * @num_packets: how many packets were lost
4676 * @rate: % of packets which failed transmission
4677 * @intvl: interval (in s) over which the TX failure threshold was breached.
4678 * @gfp: context flags
4680 * Notify userspace when configured % TX failures over number of packets in a
4681 * given interval is exceeded.
4683 void cfg80211_cqm_txe_notify(struct net_device
*dev
, const u8
*peer
,
4684 u32 num_packets
, u32 rate
, u32 intvl
, gfp_t gfp
);
4687 * cfg80211_cqm_beacon_loss_notify - beacon loss event
4688 * @dev: network device
4689 * @gfp: context flags
4691 * Notify userspace about beacon loss from the connected AP.
4693 void cfg80211_cqm_beacon_loss_notify(struct net_device
*dev
, gfp_t gfp
);
4696 * cfg80211_radar_event - radar detection event
4698 * @chandef: chandef for the current channel
4699 * @gfp: context flags
4701 * This function is called when a radar is detected on the current chanenl.
4703 void cfg80211_radar_event(struct wiphy
*wiphy
,
4704 struct cfg80211_chan_def
*chandef
, gfp_t gfp
);
4707 * cfg80211_cac_event - Channel availability check (CAC) event
4708 * @netdev: network device
4709 * @chandef: chandef for the current channel
4710 * @event: type of event
4711 * @gfp: context flags
4713 * This function is called when a Channel availability check (CAC) is finished
4714 * or aborted. This must be called to notify the completion of a CAC process,
4715 * also by full-MAC drivers.
4717 void cfg80211_cac_event(struct net_device
*netdev
,
4718 const struct cfg80211_chan_def
*chandef
,
4719 enum nl80211_radar_event event
, gfp_t gfp
);
4723 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
4724 * @dev: network device
4725 * @bssid: BSSID of AP (to avoid races)
4726 * @replay_ctr: new replay counter
4727 * @gfp: allocation flags
4729 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
4730 const u8
*replay_ctr
, gfp_t gfp
);
4733 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
4734 * @dev: network device
4735 * @index: candidate index (the smaller the index, the higher the priority)
4736 * @bssid: BSSID of AP
4737 * @preauth: Whether AP advertises support for RSN pre-authentication
4738 * @gfp: allocation flags
4740 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
4741 const u8
*bssid
, bool preauth
, gfp_t gfp
);
4744 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
4745 * @dev: The device the frame matched to
4746 * @addr: the transmitter address
4747 * @gfp: context flags
4749 * This function is used in AP mode (only!) to inform userspace that
4750 * a spurious class 3 frame was received, to be able to deauth the
4752 * Return: %true if the frame was passed to userspace (or this failed
4753 * for a reason other than not having a subscription.)
4755 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
4756 const u8
*addr
, gfp_t gfp
);
4759 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
4760 * @dev: The device the frame matched to
4761 * @addr: the transmitter address
4762 * @gfp: context flags
4764 * This function is used in AP mode (only!) to inform userspace that
4765 * an associated station sent a 4addr frame but that wasn't expected.
4766 * It is allowed and desirable to send this event only once for each
4767 * station to avoid event flooding.
4768 * Return: %true if the frame was passed to userspace (or this failed
4769 * for a reason other than not having a subscription.)
4771 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
4772 const u8
*addr
, gfp_t gfp
);
4775 * cfg80211_probe_status - notify userspace about probe status
4776 * @dev: the device the probe was sent on
4777 * @addr: the address of the peer
4778 * @cookie: the cookie filled in @probe_client previously
4779 * @acked: indicates whether probe was acked or not
4780 * @gfp: allocation flags
4782 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
4783 u64 cookie
, bool acked
, gfp_t gfp
);
4786 * cfg80211_report_obss_beacon - report beacon from other APs
4787 * @wiphy: The wiphy that received the beacon
4789 * @len: length of the frame
4790 * @freq: frequency the frame was received on
4791 * @sig_dbm: signal strength in mBm, or 0 if unknown
4793 * Use this function to report to userspace when a beacon was
4794 * received. It is not useful to call this when there is no
4795 * netdev that is in AP/GO mode.
4797 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
4798 const u8
*frame
, size_t len
,
4799 int freq
, int sig_dbm
);
4802 * cfg80211_reg_can_beacon - check if beaconing is allowed
4804 * @chandef: the channel definition
4805 * @iftype: interface type
4807 * Return: %true if there is no secondary channel or the secondary channel(s)
4808 * can be used for beaconing (i.e. is not a radar channel etc.)
4810 bool cfg80211_reg_can_beacon(struct wiphy
*wiphy
,
4811 struct cfg80211_chan_def
*chandef
,
4812 enum nl80211_iftype iftype
);
4815 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
4816 * @dev: the device which switched channels
4817 * @chandef: the new channel definition
4819 * Caller must acquire wdev_lock, therefore must only be called from sleepable
4822 void cfg80211_ch_switch_notify(struct net_device
*dev
,
4823 struct cfg80211_chan_def
*chandef
);
4826 * cfg80211_ch_switch_started_notify - notify channel switch start
4827 * @dev: the device on which the channel switch started
4828 * @chandef: the future channel definition
4829 * @count: the number of TBTTs until the channel switch happens
4831 * Inform the userspace about the channel switch that has just
4832 * started, so that it can take appropriate actions (eg. starting
4833 * channel switch on other vifs), if necessary.
4835 void cfg80211_ch_switch_started_notify(struct net_device
*dev
,
4836 struct cfg80211_chan_def
*chandef
,
4840 * ieee80211_operating_class_to_band - convert operating class to band
4842 * @operating_class: the operating class to convert
4843 * @band: band pointer to fill
4845 * Returns %true if the conversion was successful, %false otherwise.
4847 bool ieee80211_operating_class_to_band(u8 operating_class
,
4848 enum ieee80211_band
*band
);
4851 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
4852 * @dev: the device on which the operation is requested
4853 * @peer: the MAC address of the peer device
4854 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
4855 * NL80211_TDLS_TEARDOWN)
4856 * @reason_code: the reason code for teardown request
4857 * @gfp: allocation flags
4859 * This function is used to request userspace to perform TDLS operation that
4860 * requires knowledge of keys, i.e., link setup or teardown when the AP
4861 * connection uses encryption. This is optional mechanism for the driver to use
4862 * if it can automatically determine when a TDLS link could be useful (e.g.,
4863 * based on traffic and signal strength for a peer).
4865 void cfg80211_tdls_oper_request(struct net_device
*dev
, const u8
*peer
,
4866 enum nl80211_tdls_operation oper
,
4867 u16 reason_code
, gfp_t gfp
);
4870 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
4871 * @rate: given rate_info to calculate bitrate from
4873 * return 0 if MCS index >= 32
4875 u32
cfg80211_calculate_bitrate(struct rate_info
*rate
);
4878 * cfg80211_unregister_wdev - remove the given wdev
4879 * @wdev: struct wireless_dev to remove
4881 * Call this function only for wdevs that have no netdev assigned,
4882 * e.g. P2P Devices. It removes the device from the list so that
4883 * it can no longer be used. It is necessary to call this function
4884 * even when cfg80211 requests the removal of the interface by
4885 * calling the del_virtual_intf() callback. The function must also
4886 * be called when the driver wishes to unregister the wdev, e.g.
4887 * when the device is unbound from the driver.
4889 * Requires the RTNL to be held.
4891 void cfg80211_unregister_wdev(struct wireless_dev
*wdev
);
4894 * struct cfg80211_ft_event - FT Information Elements
4896 * @ies_len: length of the FT IE in bytes
4897 * @target_ap: target AP's MAC address
4899 * @ric_ies_len: length of the RIC IE in bytes
4901 struct cfg80211_ft_event_params
{
4904 const u8
*target_ap
;
4910 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
4911 * @netdev: network device
4912 * @ft_event: IE information
4914 void cfg80211_ft_event(struct net_device
*netdev
,
4915 struct cfg80211_ft_event_params
*ft_event
);
4918 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
4919 * @ies: the input IE buffer
4920 * @len: the input length
4921 * @attr: the attribute ID to find
4922 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
4923 * if the function is only called to get the needed buffer size
4924 * @bufsize: size of the output buffer
4926 * The function finds a given P2P attribute in the (vendor) IEs and
4927 * copies its contents to the given buffer.
4929 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
4930 * malformed or the attribute can't be found (respectively), or the
4931 * length of the found attribute (which can be zero).
4933 int cfg80211_get_p2p_attr(const u8
*ies
, unsigned int len
,
4934 enum ieee80211_p2p_attr_id attr
,
4935 u8
*buf
, unsigned int bufsize
);
4938 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
4939 * @wdev: the wireless device reporting the wakeup
4940 * @wakeup: the wakeup report
4941 * @gfp: allocation flags
4943 * This function reports that the given device woke up. If it
4944 * caused the wakeup, report the reason(s), otherwise you may
4945 * pass %NULL as the @wakeup parameter to advertise that something
4946 * else caused the wakeup.
4948 void cfg80211_report_wowlan_wakeup(struct wireless_dev
*wdev
,
4949 struct cfg80211_wowlan_wakeup
*wakeup
,
4953 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
4955 * @wdev: the wireless device for which critical protocol is stopped.
4956 * @gfp: allocation flags
4958 * This function can be called by the driver to indicate it has reverted
4959 * operation back to normal. One reason could be that the duration given
4960 * by .crit_proto_start() has expired.
4962 void cfg80211_crit_proto_stopped(struct wireless_dev
*wdev
, gfp_t gfp
);
4965 * ieee80211_get_num_supported_channels - get number of channels device has
4968 * Return: the number of channels supported by the device.
4970 unsigned int ieee80211_get_num_supported_channels(struct wiphy
*wiphy
);
4973 * cfg80211_check_combinations - check interface combinations
4976 * @num_different_channels: the number of different channels we want
4977 * to use for verification
4978 * @radar_detect: a bitmap where each bit corresponds to a channel
4979 * width where radar detection is needed, as in the definition of
4980 * &struct ieee80211_iface_combination.@radar_detect_widths
4981 * @iftype_num: array with the numbers of interfaces of each interface
4982 * type. The index is the interface type as specified in &enum
4985 * This function can be called by the driver to check whether a
4986 * combination of interfaces and their types are allowed according to
4987 * the interface combinations.
4989 int cfg80211_check_combinations(struct wiphy
*wiphy
,
4990 const int num_different_channels
,
4991 const u8 radar_detect
,
4992 const int iftype_num
[NUM_NL80211_IFTYPES
]);
4995 * cfg80211_iter_combinations - iterate over matching combinations
4998 * @num_different_channels: the number of different channels we want
4999 * to use for verification
5000 * @radar_detect: a bitmap where each bit corresponds to a channel
5001 * width where radar detection is needed, as in the definition of
5002 * &struct ieee80211_iface_combination.@radar_detect_widths
5003 * @iftype_num: array with the numbers of interfaces of each interface
5004 * type. The index is the interface type as specified in &enum
5006 * @iter: function to call for each matching combination
5007 * @data: pointer to pass to iter function
5009 * This function can be called by the driver to check what possible
5010 * combinations it fits in at a given moment, e.g. for channel switching
5013 int cfg80211_iter_combinations(struct wiphy
*wiphy
,
5014 const int num_different_channels
,
5015 const u8 radar_detect
,
5016 const int iftype_num
[NUM_NL80211_IFTYPES
],
5017 void (*iter
)(const struct ieee80211_iface_combination
*c
,
5022 * cfg80211_stop_iface - trigger interface disconnection
5025 * @wdev: wireless device
5026 * @gfp: context flags
5028 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
5031 * Note: This doesn't need any locks and is asynchronous.
5033 void cfg80211_stop_iface(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
5037 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
5038 * @wiphy: the wiphy to shut down
5040 * This function shuts down all interfaces belonging to this wiphy by
5041 * calling dev_close() (and treating non-netdev interfaces as needed).
5042 * It shouldn't really be used unless there are some fatal device errors
5043 * that really can't be recovered in any other way.
5045 * Callers must hold the RTNL and be able to deal with callbacks into
5046 * the driver while the function is running.
5048 void cfg80211_shutdown_all_interfaces(struct wiphy
*wiphy
);
5051 /* ethtool helper */
5052 void cfg80211_get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
);
5054 /* Logging, debugging and troubleshooting/diagnostic helpers. */
5056 /* wiphy_printk helpers, similar to dev_printk */
5058 #define wiphy_printk(level, wiphy, format, args...) \
5059 dev_printk(level, &(wiphy)->dev, format, ##args)
5060 #define wiphy_emerg(wiphy, format, args...) \
5061 dev_emerg(&(wiphy)->dev, format, ##args)
5062 #define wiphy_alert(wiphy, format, args...) \
5063 dev_alert(&(wiphy)->dev, format, ##args)
5064 #define wiphy_crit(wiphy, format, args...) \
5065 dev_crit(&(wiphy)->dev, format, ##args)
5066 #define wiphy_err(wiphy, format, args...) \
5067 dev_err(&(wiphy)->dev, format, ##args)
5068 #define wiphy_warn(wiphy, format, args...) \
5069 dev_warn(&(wiphy)->dev, format, ##args)
5070 #define wiphy_notice(wiphy, format, args...) \
5071 dev_notice(&(wiphy)->dev, format, ##args)
5072 #define wiphy_info(wiphy, format, args...) \
5073 dev_info(&(wiphy)->dev, format, ##args)
5075 #define wiphy_debug(wiphy, format, args...) \
5076 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
5078 #define wiphy_dbg(wiphy, format, args...) \
5079 dev_dbg(&(wiphy)->dev, format, ##args)
5081 #if defined(VERBOSE_DEBUG)
5082 #define wiphy_vdbg wiphy_dbg
5084 #define wiphy_vdbg(wiphy, format, args...) \
5087 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
5093 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
5094 * of using a WARN/WARN_ON to get the message out, including the
5095 * file/line information and a backtrace.
5097 #define wiphy_WARN(wiphy, format, args...) \
5098 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
5100 #endif /* __NET_CFG80211_H */