1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/bug.h>
17 #include <linux/netlink.h>
18 #include <linux/skbuff.h>
19 #include <linux/nl80211.h>
20 #include <linux/if_ether.h>
21 #include <linux/ieee80211.h>
22 #include <linux/net.h>
23 #include <net/regulatory.h>
28 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
29 * userspace and drivers, and offers some utility functionality associated
30 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
31 * by all modern wireless drivers in Linux, so that they offer a consistent
32 * API through nl80211. For backward compatibility, cfg80211 also offers
33 * wireless extensions to userspace, but hides them from drivers completely.
35 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
41 * DOC: Device registration
43 * In order for a driver to use cfg80211, it must register the hardware device
44 * with cfg80211. This happens through a number of hardware capability structs
47 * The fundamental structure for each device is the 'wiphy', of which each
48 * instance describes a physical wireless device connected to the system. Each
49 * such wiphy can have zero, one, or many virtual interfaces associated with
50 * it, which need to be identified as such by pointing the network interface's
51 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
52 * the wireless part of the interface, normally this struct is embedded in the
53 * network interface's private data area. Drivers can optionally allow creating
54 * or destroying virtual interfaces on the fly, but without at least one or the
55 * ability to create some the wireless device isn't useful.
57 * Each wiphy structure contains device capability information, and also has
58 * a pointer to the various operations the driver offers. The definitions and
59 * structures here describe these capabilities in detail.
65 * wireless hardware capability structures
69 * enum ieee80211_band - supported frequency bands
71 * The bands are assigned this way because the supported
72 * bitrates differ in these bands.
74 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
75 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
76 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
77 * @IEEE80211_NUM_BANDS: number of defined bands
80 IEEE80211_BAND_2GHZ
= NL80211_BAND_2GHZ
,
81 IEEE80211_BAND_5GHZ
= NL80211_BAND_5GHZ
,
82 IEEE80211_BAND_60GHZ
= NL80211_BAND_60GHZ
,
89 * enum ieee80211_channel_flags - channel flags
91 * Channel flags set by the regulatory control code.
93 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
94 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
95 * sending probe requests or beaconing.
96 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
97 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
99 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
101 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
102 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
103 * this flag indicates that an 80 MHz channel cannot use this
104 * channel as the control or any of the secondary channels.
105 * This may be due to the driver or due to regulatory bandwidth
107 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
108 * this flag indicates that an 160 MHz channel cannot use this
109 * channel as the control or any of the secondary channels.
110 * This may be due to the driver or due to regulatory bandwidth
112 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
113 * @IEEE80211_CHAN_GO_CONCURRENT: see %NL80211_FREQUENCY_ATTR_GO_CONCURRENT
114 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
116 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
120 enum ieee80211_channel_flags
{
121 IEEE80211_CHAN_DISABLED
= 1<<0,
122 IEEE80211_CHAN_NO_IR
= 1<<1,
124 IEEE80211_CHAN_RADAR
= 1<<3,
125 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
126 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
127 IEEE80211_CHAN_NO_OFDM
= 1<<6,
128 IEEE80211_CHAN_NO_80MHZ
= 1<<7,
129 IEEE80211_CHAN_NO_160MHZ
= 1<<8,
130 IEEE80211_CHAN_INDOOR_ONLY
= 1<<9,
131 IEEE80211_CHAN_GO_CONCURRENT
= 1<<10,
132 IEEE80211_CHAN_NO_20MHZ
= 1<<11,
133 IEEE80211_CHAN_NO_10MHZ
= 1<<12,
136 #define IEEE80211_CHAN_NO_HT40 \
137 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
139 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
140 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
143 * struct ieee80211_channel - channel definition
145 * This structure describes a single channel for use
148 * @center_freq: center frequency in MHz
149 * @hw_value: hardware-specific value for the channel
150 * @flags: channel flags from &enum ieee80211_channel_flags.
151 * @orig_flags: channel flags at registration time, used by regulatory
152 * code to support devices with additional restrictions
153 * @band: band this channel belongs to.
154 * @max_antenna_gain: maximum antenna gain in dBi
155 * @max_power: maximum transmission power (in dBm)
156 * @max_reg_power: maximum regulatory transmission power (in dBm)
157 * @beacon_found: helper to regulatory code to indicate when a beacon
158 * has been found on this channel. Use regulatory_hint_found_beacon()
159 * to enable this, this is useful only on 5 GHz band.
160 * @orig_mag: internal use
161 * @orig_mpwr: internal use
162 * @dfs_state: current state of this channel. Only relevant if radar is required
164 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
165 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
167 struct ieee80211_channel
{
168 enum ieee80211_band band
;
172 int max_antenna_gain
;
177 int orig_mag
, orig_mpwr
;
178 enum nl80211_dfs_state dfs_state
;
179 unsigned long dfs_state_entered
;
180 unsigned int dfs_cac_ms
;
184 * enum ieee80211_rate_flags - rate flags
186 * Hardware/specification flags for rates. These are structured
187 * in a way that allows using the same bitrate structure for
188 * different bands/PHY modes.
190 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
191 * preamble on this bitrate; only relevant in 2.4GHz band and
193 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
194 * when used with 802.11a (on the 5 GHz band); filled by the
195 * core code when registering the wiphy.
196 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
197 * when used with 802.11b (on the 2.4 GHz band); filled by the
198 * core code when registering the wiphy.
199 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
200 * when used with 802.11g (on the 2.4 GHz band); filled by the
201 * core code when registering the wiphy.
202 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
203 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
204 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
206 enum ieee80211_rate_flags
{
207 IEEE80211_RATE_SHORT_PREAMBLE
= 1<<0,
208 IEEE80211_RATE_MANDATORY_A
= 1<<1,
209 IEEE80211_RATE_MANDATORY_B
= 1<<2,
210 IEEE80211_RATE_MANDATORY_G
= 1<<3,
211 IEEE80211_RATE_ERP_G
= 1<<4,
212 IEEE80211_RATE_SUPPORTS_5MHZ
= 1<<5,
213 IEEE80211_RATE_SUPPORTS_10MHZ
= 1<<6,
217 * struct ieee80211_rate - bitrate definition
219 * This structure describes a bitrate that an 802.11 PHY can
220 * operate with. The two values @hw_value and @hw_value_short
221 * are only for driver use when pointers to this structure are
224 * @flags: rate-specific flags
225 * @bitrate: bitrate in units of 100 Kbps
226 * @hw_value: driver/hardware value for this rate
227 * @hw_value_short: driver/hardware value for this rate when
228 * short preamble is used
230 struct ieee80211_rate
{
233 u16 hw_value
, hw_value_short
;
237 * struct ieee80211_sta_ht_cap - STA's HT capabilities
239 * This structure describes most essential parameters needed
240 * to describe 802.11n HT capabilities for an STA.
242 * @ht_supported: is HT supported by the STA
243 * @cap: HT capabilities map as described in 802.11n spec
244 * @ampdu_factor: Maximum A-MPDU length factor
245 * @ampdu_density: Minimum A-MPDU spacing
246 * @mcs: Supported MCS rates
248 struct ieee80211_sta_ht_cap
{
249 u16 cap
; /* use IEEE80211_HT_CAP_ */
253 struct ieee80211_mcs_info mcs
;
257 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
259 * This structure describes most essential parameters needed
260 * to describe 802.11ac VHT capabilities for an STA.
262 * @vht_supported: is VHT supported by the STA
263 * @cap: VHT capabilities map as described in 802.11ac spec
264 * @vht_mcs: Supported VHT MCS rates
266 struct ieee80211_sta_vht_cap
{
268 u32 cap
; /* use IEEE80211_VHT_CAP_ */
269 struct ieee80211_vht_mcs_info vht_mcs
;
273 * struct ieee80211_supported_band - frequency band definition
275 * This structure describes a frequency band a wiphy
276 * is able to operate in.
278 * @channels: Array of channels the hardware can operate in
280 * @band: the band this structure represents
281 * @n_channels: Number of channels in @channels
282 * @bitrates: Array of bitrates the hardware can operate with
283 * in this band. Must be sorted to give a valid "supported
284 * rates" IE, i.e. CCK rates first, then OFDM.
285 * @n_bitrates: Number of bitrates in @bitrates
286 * @ht_cap: HT capabilities in this band
287 * @vht_cap: VHT capabilities in this band
289 struct ieee80211_supported_band
{
290 struct ieee80211_channel
*channels
;
291 struct ieee80211_rate
*bitrates
;
292 enum ieee80211_band band
;
295 struct ieee80211_sta_ht_cap ht_cap
;
296 struct ieee80211_sta_vht_cap vht_cap
;
300 * Wireless hardware/device configuration structures and methods
304 * DOC: Actions and configuration
306 * Each wireless device and each virtual interface offer a set of configuration
307 * operations and other actions that are invoked by userspace. Each of these
308 * actions is described in the operations structure, and the parameters these
309 * operations use are described separately.
311 * Additionally, some operations are asynchronous and expect to get status
312 * information via some functions that drivers need to call.
314 * Scanning and BSS list handling with its associated functionality is described
315 * in a separate chapter.
319 * struct vif_params - describes virtual interface parameters
320 * @use_4addr: use 4-address frames
321 * @macaddr: address to use for this virtual interface. This will only
322 * be used for non-netdevice interfaces. If this parameter is set
323 * to zero address the driver may determine the address as needed.
327 u8 macaddr
[ETH_ALEN
];
331 * struct key_params - key information
333 * Information about a key
336 * @key_len: length of key material
337 * @cipher: cipher suite selector
338 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
339 * with the get_key() callback, must be in little endian,
340 * length given by @seq_len.
341 * @seq_len: length of @seq.
352 * struct cfg80211_chan_def - channel definition
353 * @chan: the (control) channel
354 * @width: channel width
355 * @center_freq1: center frequency of first segment
356 * @center_freq2: center frequency of second segment
357 * (only with 80+80 MHz)
359 struct cfg80211_chan_def
{
360 struct ieee80211_channel
*chan
;
361 enum nl80211_chan_width width
;
367 * cfg80211_get_chandef_type - return old channel type from chandef
368 * @chandef: the channel definition
370 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
371 * chandef, which must have a bandwidth allowing this conversion.
373 static inline enum nl80211_channel_type
374 cfg80211_get_chandef_type(const struct cfg80211_chan_def
*chandef
)
376 switch (chandef
->width
) {
377 case NL80211_CHAN_WIDTH_20_NOHT
:
378 return NL80211_CHAN_NO_HT
;
379 case NL80211_CHAN_WIDTH_20
:
380 return NL80211_CHAN_HT20
;
381 case NL80211_CHAN_WIDTH_40
:
382 if (chandef
->center_freq1
> chandef
->chan
->center_freq
)
383 return NL80211_CHAN_HT40PLUS
;
384 return NL80211_CHAN_HT40MINUS
;
387 return NL80211_CHAN_NO_HT
;
392 * cfg80211_chandef_create - create channel definition using channel type
393 * @chandef: the channel definition struct to fill
394 * @channel: the control channel
395 * @chantype: the channel type
397 * Given a channel type, create a channel definition.
399 void cfg80211_chandef_create(struct cfg80211_chan_def
*chandef
,
400 struct ieee80211_channel
*channel
,
401 enum nl80211_channel_type chantype
);
404 * cfg80211_chandef_identical - check if two channel definitions are identical
405 * @chandef1: first channel definition
406 * @chandef2: second channel definition
408 * Return: %true if the channels defined by the channel definitions are
409 * identical, %false otherwise.
412 cfg80211_chandef_identical(const struct cfg80211_chan_def
*chandef1
,
413 const struct cfg80211_chan_def
*chandef2
)
415 return (chandef1
->chan
== chandef2
->chan
&&
416 chandef1
->width
== chandef2
->width
&&
417 chandef1
->center_freq1
== chandef2
->center_freq1
&&
418 chandef1
->center_freq2
== chandef2
->center_freq2
);
422 * cfg80211_chandef_compatible - check if two channel definitions are compatible
423 * @chandef1: first channel definition
424 * @chandef2: second channel definition
426 * Return: %NULL if the given channel definitions are incompatible,
427 * chandef1 or chandef2 otherwise.
429 const struct cfg80211_chan_def
*
430 cfg80211_chandef_compatible(const struct cfg80211_chan_def
*chandef1
,
431 const struct cfg80211_chan_def
*chandef2
);
434 * cfg80211_chandef_valid - check if a channel definition is valid
435 * @chandef: the channel definition to check
436 * Return: %true if the channel definition is valid. %false otherwise.
438 bool cfg80211_chandef_valid(const struct cfg80211_chan_def
*chandef
);
441 * cfg80211_chandef_usable - check if secondary channels can be used
442 * @wiphy: the wiphy to validate against
443 * @chandef: the channel definition to check
444 * @prohibited_flags: the regulatory channel flags that must not be set
445 * Return: %true if secondary channels are usable. %false otherwise.
447 bool cfg80211_chandef_usable(struct wiphy
*wiphy
,
448 const struct cfg80211_chan_def
*chandef
,
449 u32 prohibited_flags
);
452 * cfg80211_chandef_dfs_required - checks if radar detection is required
453 * @wiphy: the wiphy to validate against
454 * @chandef: the channel definition to check
455 * @iftype: the interface type as specified in &enum nl80211_iftype
457 * 1 if radar detection is required, 0 if it is not, < 0 on error
459 int cfg80211_chandef_dfs_required(struct wiphy
*wiphy
,
460 const struct cfg80211_chan_def
*chandef
,
461 enum nl80211_iftype iftype
);
464 * ieee80211_chandef_rate_flags - returns rate flags for a channel
466 * In some channel types, not all rates may be used - for example CCK
467 * rates may not be used in 5/10 MHz channels.
469 * @chandef: channel definition for the channel
471 * Returns: rate flags which apply for this channel
473 static inline enum ieee80211_rate_flags
474 ieee80211_chandef_rate_flags(struct cfg80211_chan_def
*chandef
)
476 switch (chandef
->width
) {
477 case NL80211_CHAN_WIDTH_5
:
478 return IEEE80211_RATE_SUPPORTS_5MHZ
;
479 case NL80211_CHAN_WIDTH_10
:
480 return IEEE80211_RATE_SUPPORTS_10MHZ
;
488 * ieee80211_chandef_max_power - maximum transmission power for the chandef
490 * In some regulations, the transmit power may depend on the configured channel
491 * bandwidth which may be defined as dBm/MHz. This function returns the actual
492 * max_power for non-standard (20 MHz) channels.
494 * @chandef: channel definition for the channel
496 * Returns: maximum allowed transmission power in dBm for the chandef
499 ieee80211_chandef_max_power(struct cfg80211_chan_def
*chandef
)
501 switch (chandef
->width
) {
502 case NL80211_CHAN_WIDTH_5
:
503 return min(chandef
->chan
->max_reg_power
- 6,
504 chandef
->chan
->max_power
);
505 case NL80211_CHAN_WIDTH_10
:
506 return min(chandef
->chan
->max_reg_power
- 3,
507 chandef
->chan
->max_power
);
511 return chandef
->chan
->max_power
;
515 * enum survey_info_flags - survey information flags
517 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
518 * @SURVEY_INFO_IN_USE: channel is currently being used
519 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
520 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
521 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
522 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
523 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
525 * Used by the driver to indicate which info in &struct survey_info
526 * it has filled in during the get_survey().
528 enum survey_info_flags
{
529 SURVEY_INFO_NOISE_DBM
= 1<<0,
530 SURVEY_INFO_IN_USE
= 1<<1,
531 SURVEY_INFO_CHANNEL_TIME
= 1<<2,
532 SURVEY_INFO_CHANNEL_TIME_BUSY
= 1<<3,
533 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY
= 1<<4,
534 SURVEY_INFO_CHANNEL_TIME_RX
= 1<<5,
535 SURVEY_INFO_CHANNEL_TIME_TX
= 1<<6,
539 * struct survey_info - channel survey response
541 * @channel: the channel this survey record reports, mandatory
542 * @filled: bitflag of flags from &enum survey_info_flags
543 * @noise: channel noise in dBm. This and all following fields are
545 * @channel_time: amount of time in ms the radio spent on the channel
546 * @channel_time_busy: amount of time the primary channel was sensed busy
547 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
548 * @channel_time_rx: amount of time the radio spent receiving data
549 * @channel_time_tx: amount of time the radio spent transmitting data
551 * Used by dump_survey() to report back per-channel survey information.
553 * This structure can later be expanded with things like
554 * channel duty cycle etc.
557 struct ieee80211_channel
*channel
;
559 u64 channel_time_busy
;
560 u64 channel_time_ext_busy
;
568 * struct cfg80211_crypto_settings - Crypto settings
569 * @wpa_versions: indicates which, if any, WPA versions are enabled
570 * (from enum nl80211_wpa_versions)
571 * @cipher_group: group key cipher suite (or 0 if unset)
572 * @n_ciphers_pairwise: number of AP supported unicast ciphers
573 * @ciphers_pairwise: unicast key cipher suites
574 * @n_akm_suites: number of AKM suites
575 * @akm_suites: AKM suites
576 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
577 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
578 * required to assume that the port is unauthorized until authorized by
579 * user space. Otherwise, port is marked authorized by default.
580 * @control_port_ethertype: the control port protocol that should be
581 * allowed through even on unauthorized ports
582 * @control_port_no_encrypt: TRUE to prevent encryption of control port
585 struct cfg80211_crypto_settings
{
588 int n_ciphers_pairwise
;
589 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
591 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
593 __be16 control_port_ethertype
;
594 bool control_port_no_encrypt
;
598 * struct cfg80211_beacon_data - beacon data
599 * @head: head portion of beacon (before TIM IE)
600 * or %NULL if not changed
601 * @tail: tail portion of beacon (after TIM IE)
602 * or %NULL if not changed
603 * @head_len: length of @head
604 * @tail_len: length of @tail
605 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
606 * @beacon_ies_len: length of beacon_ies in octets
607 * @proberesp_ies: extra information element(s) to add into Probe Response
609 * @proberesp_ies_len: length of proberesp_ies in octets
610 * @assocresp_ies: extra information element(s) to add into (Re)Association
611 * Response frames or %NULL
612 * @assocresp_ies_len: length of assocresp_ies in octets
613 * @probe_resp_len: length of probe response template (@probe_resp)
614 * @probe_resp: probe response template (AP mode only)
616 struct cfg80211_beacon_data
{
617 const u8
*head
, *tail
;
618 const u8
*beacon_ies
;
619 const u8
*proberesp_ies
;
620 const u8
*assocresp_ies
;
621 const u8
*probe_resp
;
623 size_t head_len
, tail_len
;
624 size_t beacon_ies_len
;
625 size_t proberesp_ies_len
;
626 size_t assocresp_ies_len
;
627 size_t probe_resp_len
;
635 * struct cfg80211_acl_data - Access control list data
637 * @acl_policy: ACL policy to be applied on the station's
638 * entry specified by mac_addr
639 * @n_acl_entries: Number of MAC address entries passed
640 * @mac_addrs: List of MAC addresses of stations to be used for ACL
642 struct cfg80211_acl_data
{
643 enum nl80211_acl_policy acl_policy
;
647 struct mac_address mac_addrs
[];
651 * struct cfg80211_ap_settings - AP configuration
653 * Used to configure an AP interface.
655 * @chandef: defines the channel to use
656 * @beacon: beacon data
657 * @beacon_interval: beacon interval
658 * @dtim_period: DTIM period
659 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
661 * @ssid_len: length of @ssid
662 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
663 * @crypto: crypto settings
664 * @privacy: the BSS uses privacy
665 * @auth_type: Authentication type (algorithm)
666 * @inactivity_timeout: time in seconds to determine station's inactivity.
667 * @p2p_ctwindow: P2P CT Window
668 * @p2p_opp_ps: P2P opportunistic PS
669 * @acl: ACL configuration used by the drivers which has support for
670 * MAC address based access control
672 struct cfg80211_ap_settings
{
673 struct cfg80211_chan_def chandef
;
675 struct cfg80211_beacon_data beacon
;
677 int beacon_interval
, dtim_period
;
680 enum nl80211_hidden_ssid hidden_ssid
;
681 struct cfg80211_crypto_settings crypto
;
683 enum nl80211_auth_type auth_type
;
684 int inactivity_timeout
;
687 const struct cfg80211_acl_data
*acl
;
691 * struct cfg80211_csa_settings - channel switch settings
693 * Used for channel switch
695 * @chandef: defines the channel to use after the switch
696 * @beacon_csa: beacon data while performing the switch
697 * @counter_offset_beacon: offset for the counter within the beacon (tail)
698 * @counter_offset_presp: offset for the counter within the probe response
699 * @beacon_after: beacon data to be used on the new channel
700 * @radar_required: whether radar detection is required on the new channel
701 * @block_tx: whether transmissions should be blocked while changing
702 * @count: number of beacons until switch
704 struct cfg80211_csa_settings
{
705 struct cfg80211_chan_def chandef
;
706 struct cfg80211_beacon_data beacon_csa
;
707 u16 counter_offset_beacon
, counter_offset_presp
;
708 struct cfg80211_beacon_data beacon_after
;
715 * enum station_parameters_apply_mask - station parameter values to apply
716 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
717 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
718 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
720 * Not all station parameters have in-band "no change" signalling,
721 * for those that don't these flags will are used.
723 enum station_parameters_apply_mask
{
724 STATION_PARAM_APPLY_UAPSD
= BIT(0),
725 STATION_PARAM_APPLY_CAPABILITY
= BIT(1),
726 STATION_PARAM_APPLY_PLINK_STATE
= BIT(2),
730 * struct station_parameters - station parameters
732 * Used to change and create a new station.
734 * @vlan: vlan interface station should belong to
735 * @supported_rates: supported rates in IEEE 802.11 format
736 * (or NULL for no change)
737 * @supported_rates_len: number of supported rates
738 * @sta_flags_mask: station flags that changed
739 * (bitmask of BIT(NL80211_STA_FLAG_...))
740 * @sta_flags_set: station flags values
741 * (bitmask of BIT(NL80211_STA_FLAG_...))
742 * @listen_interval: listen interval or -1 for no change
743 * @aid: AID or zero for no change
744 * @plink_action: plink action to take
745 * @plink_state: set the peer link state for a station
746 * @ht_capa: HT capabilities of station
747 * @vht_capa: VHT capabilities of station
748 * @uapsd_queues: bitmap of queues configured for uapsd. same format
749 * as the AC bitmap in the QoS info field
750 * @max_sp: max Service Period. same format as the MAX_SP in the
751 * QoS info field (but already shifted down)
752 * @sta_modify_mask: bitmap indicating which parameters changed
753 * (for those that don't have a natural "no change" value),
754 * see &enum station_parameters_apply_mask
755 * @local_pm: local link-specific mesh power save mode (no change when set
757 * @capability: station capability
758 * @ext_capab: extended capabilities of the station
759 * @ext_capab_len: number of extended capabilities
760 * @supported_channels: supported channels in IEEE 802.11 format
761 * @supported_channels_len: number of supported channels
762 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
763 * @supported_oper_classes_len: number of supported operating classes
764 * @opmode_notif: operating mode field from Operating Mode Notification
765 * @opmode_notif_used: information if operating mode field is used
767 struct station_parameters
{
768 const u8
*supported_rates
;
769 struct net_device
*vlan
;
770 u32 sta_flags_mask
, sta_flags_set
;
774 u8 supported_rates_len
;
777 const struct ieee80211_ht_cap
*ht_capa
;
778 const struct ieee80211_vht_cap
*vht_capa
;
781 enum nl80211_mesh_power_mode local_pm
;
785 const u8
*supported_channels
;
786 u8 supported_channels_len
;
787 const u8
*supported_oper_classes
;
788 u8 supported_oper_classes_len
;
790 bool opmode_notif_used
;
794 * enum cfg80211_station_type - the type of station being modified
795 * @CFG80211_STA_AP_CLIENT: client of an AP interface
796 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
797 * the AP MLME in the device
798 * @CFG80211_STA_AP_STA: AP station on managed interface
799 * @CFG80211_STA_IBSS: IBSS station
800 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
801 * while TDLS setup is in progress, it moves out of this state when
802 * being marked authorized; use this only if TDLS with external setup is
804 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
805 * entry that is operating, has been marked authorized by userspace)
806 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
807 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
809 enum cfg80211_station_type
{
810 CFG80211_STA_AP_CLIENT
,
811 CFG80211_STA_AP_MLME_CLIENT
,
814 CFG80211_STA_TDLS_PEER_SETUP
,
815 CFG80211_STA_TDLS_PEER_ACTIVE
,
816 CFG80211_STA_MESH_PEER_KERNEL
,
817 CFG80211_STA_MESH_PEER_USER
,
821 * cfg80211_check_station_change - validate parameter changes
822 * @wiphy: the wiphy this operates on
823 * @params: the new parameters for a station
824 * @statype: the type of station being modified
826 * Utility function for the @change_station driver method. Call this function
827 * with the appropriate station type looking up the station (and checking that
828 * it exists). It will verify whether the station change is acceptable, and if
829 * not will return an error code. Note that it may modify the parameters for
830 * backward compatibility reasons, so don't use them before calling this.
832 int cfg80211_check_station_change(struct wiphy
*wiphy
,
833 struct station_parameters
*params
,
834 enum cfg80211_station_type statype
);
837 * enum station_info_flags - station information flags
839 * Used by the driver to indicate which info in &struct station_info
840 * it has filled in during get_station() or dump_station().
842 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
843 * @STATION_INFO_RX_BYTES: @rx_bytes filled
844 * @STATION_INFO_TX_BYTES: @tx_bytes filled
845 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
846 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
847 * @STATION_INFO_LLID: @llid filled
848 * @STATION_INFO_PLID: @plid filled
849 * @STATION_INFO_PLINK_STATE: @plink_state filled
850 * @STATION_INFO_SIGNAL: @signal filled
851 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
852 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
853 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
854 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
855 * @STATION_INFO_TX_RETRIES: @tx_retries filled
856 * @STATION_INFO_TX_FAILED: @tx_failed filled
857 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
858 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
859 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
860 * @STATION_INFO_BSS_PARAM: @bss_param filled
861 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
862 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
863 * @STATION_INFO_STA_FLAGS: @sta_flags filled
864 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
865 * @STATION_INFO_T_OFFSET: @t_offset filled
866 * @STATION_INFO_LOCAL_PM: @local_pm filled
867 * @STATION_INFO_PEER_PM: @peer_pm filled
868 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
869 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
870 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
872 enum station_info_flags
{
873 STATION_INFO_INACTIVE_TIME
= 1<<0,
874 STATION_INFO_RX_BYTES
= 1<<1,
875 STATION_INFO_TX_BYTES
= 1<<2,
876 STATION_INFO_LLID
= 1<<3,
877 STATION_INFO_PLID
= 1<<4,
878 STATION_INFO_PLINK_STATE
= 1<<5,
879 STATION_INFO_SIGNAL
= 1<<6,
880 STATION_INFO_TX_BITRATE
= 1<<7,
881 STATION_INFO_RX_PACKETS
= 1<<8,
882 STATION_INFO_TX_PACKETS
= 1<<9,
883 STATION_INFO_TX_RETRIES
= 1<<10,
884 STATION_INFO_TX_FAILED
= 1<<11,
885 STATION_INFO_RX_DROP_MISC
= 1<<12,
886 STATION_INFO_SIGNAL_AVG
= 1<<13,
887 STATION_INFO_RX_BITRATE
= 1<<14,
888 STATION_INFO_BSS_PARAM
= 1<<15,
889 STATION_INFO_CONNECTED_TIME
= 1<<16,
890 STATION_INFO_ASSOC_REQ_IES
= 1<<17,
891 STATION_INFO_STA_FLAGS
= 1<<18,
892 STATION_INFO_BEACON_LOSS_COUNT
= 1<<19,
893 STATION_INFO_T_OFFSET
= 1<<20,
894 STATION_INFO_LOCAL_PM
= 1<<21,
895 STATION_INFO_PEER_PM
= 1<<22,
896 STATION_INFO_NONPEER_PM
= 1<<23,
897 STATION_INFO_RX_BYTES64
= 1<<24,
898 STATION_INFO_TX_BYTES64
= 1<<25,
899 STATION_INFO_CHAIN_SIGNAL
= 1<<26,
900 STATION_INFO_CHAIN_SIGNAL_AVG
= 1<<27,
904 * enum station_info_rate_flags - bitrate info flags
906 * Used by the driver to indicate the specific rate transmission
907 * type for 802.11n transmissions.
909 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
910 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
911 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
912 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
913 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
914 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
915 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
916 * @RATE_INFO_FLAGS_60G: 60GHz MCS
918 enum rate_info_flags
{
919 RATE_INFO_FLAGS_MCS
= BIT(0),
920 RATE_INFO_FLAGS_VHT_MCS
= BIT(1),
921 RATE_INFO_FLAGS_40_MHZ_WIDTH
= BIT(2),
922 RATE_INFO_FLAGS_80_MHZ_WIDTH
= BIT(3),
923 RATE_INFO_FLAGS_80P80_MHZ_WIDTH
= BIT(4),
924 RATE_INFO_FLAGS_160_MHZ_WIDTH
= BIT(5),
925 RATE_INFO_FLAGS_SHORT_GI
= BIT(6),
926 RATE_INFO_FLAGS_60G
= BIT(7),
930 * struct rate_info - bitrate information
932 * Information about a receiving or transmitting bitrate
934 * @flags: bitflag of flags from &enum rate_info_flags
935 * @mcs: mcs index if struct describes a 802.11n bitrate
936 * @legacy: bitrate in 100kbit/s for 802.11abg
937 * @nss: number of streams (VHT only)
947 * enum station_info_rate_flags - bitrate info flags
949 * Used by the driver to indicate the specific rate transmission
950 * type for 802.11n transmissions.
952 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
953 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
954 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
956 enum bss_param_flags
{
957 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
958 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
959 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
963 * struct sta_bss_parameters - BSS parameters for the attached station
965 * Information about the currently associated BSS
967 * @flags: bitflag of flags from &enum bss_param_flags
968 * @dtim_period: DTIM period for the BSS
969 * @beacon_interval: beacon interval
971 struct sta_bss_parameters
{
977 #define IEEE80211_MAX_CHAINS 4
980 * struct station_info - station information
982 * Station information filled by driver for get_station() and dump_station.
984 * @filled: bitflag of flags from &enum station_info_flags
985 * @connected_time: time(in secs) since a station is last connected
986 * @inactive_time: time since last station activity (tx/rx) in milliseconds
987 * @rx_bytes: bytes received from this station
988 * @tx_bytes: bytes transmitted to this station
989 * @llid: mesh local link id
990 * @plid: mesh peer link id
991 * @plink_state: mesh peer link state
992 * @signal: The signal strength, type depends on the wiphy's signal_type.
993 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
994 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
995 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
996 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
997 * @chain_signal: per-chain signal strength of last received packet in dBm
998 * @chain_signal_avg: per-chain signal strength average in dBm
999 * @txrate: current unicast bitrate from this station
1000 * @rxrate: current unicast bitrate to this station
1001 * @rx_packets: packets received from this station
1002 * @tx_packets: packets transmitted to this station
1003 * @tx_retries: cumulative retry counts
1004 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
1005 * @rx_dropped_misc: Dropped for un-specified reason.
1006 * @bss_param: current BSS parameters
1007 * @generation: generation number for nl80211 dumps.
1008 * This number should increase every time the list of stations
1009 * changes, i.e. when a station is added or removed, so that
1010 * userspace can tell whether it got a consistent snapshot.
1011 * @assoc_req_ies: IEs from (Re)Association Request.
1012 * This is used only when in AP mode with drivers that do not use
1013 * user space MLME/SME implementation. The information is provided for
1014 * the cfg80211_new_sta() calls to notify user space of the IEs.
1015 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1016 * @sta_flags: station flags mask & values
1017 * @beacon_loss_count: Number of times beacon loss event has triggered.
1018 * @t_offset: Time offset of the station relative to this host.
1019 * @local_pm: local mesh STA power save mode
1020 * @peer_pm: peer mesh STA power save mode
1021 * @nonpeer_pm: non-peer mesh STA power save mode
1023 struct station_info
{
1036 s8 chain_signal
[IEEE80211_MAX_CHAINS
];
1037 s8 chain_signal_avg
[IEEE80211_MAX_CHAINS
];
1039 struct rate_info txrate
;
1040 struct rate_info rxrate
;
1045 u32 rx_dropped_misc
;
1046 struct sta_bss_parameters bss_param
;
1047 struct nl80211_sta_flag_update sta_flags
;
1051 const u8
*assoc_req_ies
;
1052 size_t assoc_req_ies_len
;
1054 u32 beacon_loss_count
;
1056 enum nl80211_mesh_power_mode local_pm
;
1057 enum nl80211_mesh_power_mode peer_pm
;
1058 enum nl80211_mesh_power_mode nonpeer_pm
;
1061 * Note: Add a new enum station_info_flags value for each new field and
1062 * use it to check which fields are initialized.
1067 * enum monitor_flags - monitor flags
1069 * Monitor interface configuration flags. Note that these must be the bits
1070 * according to the nl80211 flags.
1072 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1073 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1074 * @MONITOR_FLAG_CONTROL: pass control frames
1075 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1076 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1077 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1079 enum monitor_flags
{
1080 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
1081 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
1082 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
1083 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
1084 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
1085 MONITOR_FLAG_ACTIVE
= 1<<NL80211_MNTR_FLAG_ACTIVE
,
1089 * enum mpath_info_flags - mesh path information flags
1091 * Used by the driver to indicate which info in &struct mpath_info it has filled
1092 * in during get_station() or dump_station().
1094 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1095 * @MPATH_INFO_SN: @sn filled
1096 * @MPATH_INFO_METRIC: @metric filled
1097 * @MPATH_INFO_EXPTIME: @exptime filled
1098 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1099 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1100 * @MPATH_INFO_FLAGS: @flags filled
1102 enum mpath_info_flags
{
1103 MPATH_INFO_FRAME_QLEN
= BIT(0),
1104 MPATH_INFO_SN
= BIT(1),
1105 MPATH_INFO_METRIC
= BIT(2),
1106 MPATH_INFO_EXPTIME
= BIT(3),
1107 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
1108 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
1109 MPATH_INFO_FLAGS
= BIT(6),
1113 * struct mpath_info - mesh path information
1115 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1117 * @filled: bitfield of flags from &enum mpath_info_flags
1118 * @frame_qlen: number of queued frames for this destination
1119 * @sn: target sequence number
1120 * @metric: metric (cost) of this mesh path
1121 * @exptime: expiration time for the mesh path from now, in msecs
1122 * @flags: mesh path flags
1123 * @discovery_timeout: total mesh path discovery timeout, in msecs
1124 * @discovery_retries: mesh path discovery retries
1125 * @generation: generation number for nl80211 dumps.
1126 * This number should increase every time the list of mesh paths
1127 * changes, i.e. when a station is added or removed, so that
1128 * userspace can tell whether it got a consistent snapshot.
1136 u32 discovery_timeout
;
1137 u8 discovery_retries
;
1144 * struct bss_parameters - BSS parameters
1146 * Used to change BSS parameters (mainly for AP mode).
1148 * @use_cts_prot: Whether to use CTS protection
1149 * (0 = no, 1 = yes, -1 = do not change)
1150 * @use_short_preamble: Whether the use of short preambles is allowed
1151 * (0 = no, 1 = yes, -1 = do not change)
1152 * @use_short_slot_time: Whether the use of short slot time is allowed
1153 * (0 = no, 1 = yes, -1 = do not change)
1154 * @basic_rates: basic rates in IEEE 802.11 format
1155 * (or NULL for no change)
1156 * @basic_rates_len: number of basic rates
1157 * @ap_isolate: do not forward packets between connected stations
1158 * @ht_opmode: HT Operation mode
1159 * (u16 = opmode, -1 = do not change)
1160 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1161 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1163 struct bss_parameters
{
1165 int use_short_preamble
;
1166 int use_short_slot_time
;
1171 s8 p2p_ctwindow
, p2p_opp_ps
;
1175 * struct mesh_config - 802.11s mesh configuration
1177 * These parameters can be changed while the mesh is active.
1179 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1180 * by the Mesh Peering Open message
1181 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1182 * used by the Mesh Peering Open message
1183 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1184 * the mesh peering management to close a mesh peering
1185 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1187 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1188 * be sent to establish a new peer link instance in a mesh
1189 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1190 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1192 * @auto_open_plinks: whether we should automatically open peer links when we
1193 * detect compatible mesh peers
1194 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1195 * synchronize to for 11s default synchronization method
1196 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1197 * that an originator mesh STA can send to a particular path target
1198 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1199 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1200 * a path discovery in milliseconds
1201 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1202 * receiving a PREQ shall consider the forwarding information from the
1203 * root to be valid. (TU = time unit)
1204 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1205 * which a mesh STA can send only one action frame containing a PREQ
1207 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1208 * which a mesh STA can send only one Action frame containing a PERR
1210 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1211 * it takes for an HWMP information element to propagate across the mesh
1212 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1213 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1214 * announcements are transmitted
1215 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1216 * station has access to a broader network beyond the MBSS. (This is
1217 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1218 * only means that the station will announce others it's a mesh gate, but
1219 * not necessarily using the gate announcement protocol. Still keeping the
1220 * same nomenclature to be in sync with the spec)
1221 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1222 * entity (default is TRUE - forwarding entity)
1223 * @rssi_threshold: the threshold for average signal strength of candidate
1224 * station to establish a peer link
1225 * @ht_opmode: mesh HT protection mode
1227 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1228 * receiving a proactive PREQ shall consider the forwarding information to
1229 * the root mesh STA to be valid.
1231 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1232 * PREQs are transmitted.
1233 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1234 * during which a mesh STA can send only one Action frame containing
1235 * a PREQ element for root path confirmation.
1236 * @power_mode: The default mesh power save mode which will be the initial
1237 * setting for new peer links.
1238 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1239 * after transmitting its beacon.
1240 * @plink_timeout: If no tx activity is seen from a STA we've established
1241 * peering with for longer than this time (in seconds), then remove it
1242 * from the STA's list of peers. Default is 30 minutes.
1244 struct mesh_config
{
1245 u16 dot11MeshRetryTimeout
;
1246 u16 dot11MeshConfirmTimeout
;
1247 u16 dot11MeshHoldingTimeout
;
1248 u16 dot11MeshMaxPeerLinks
;
1249 u8 dot11MeshMaxRetries
;
1252 bool auto_open_plinks
;
1253 u32 dot11MeshNbrOffsetMaxNeighbor
;
1254 u8 dot11MeshHWMPmaxPREQretries
;
1255 u32 path_refresh_time
;
1256 u16 min_discovery_timeout
;
1257 u32 dot11MeshHWMPactivePathTimeout
;
1258 u16 dot11MeshHWMPpreqMinInterval
;
1259 u16 dot11MeshHWMPperrMinInterval
;
1260 u16 dot11MeshHWMPnetDiameterTraversalTime
;
1261 u8 dot11MeshHWMPRootMode
;
1262 u16 dot11MeshHWMPRannInterval
;
1263 bool dot11MeshGateAnnouncementProtocol
;
1264 bool dot11MeshForwarding
;
1267 u32 dot11MeshHWMPactivePathToRootTimeout
;
1268 u16 dot11MeshHWMProotInterval
;
1269 u16 dot11MeshHWMPconfirmationInterval
;
1270 enum nl80211_mesh_power_mode power_mode
;
1271 u16 dot11MeshAwakeWindowDuration
;
1276 * struct mesh_setup - 802.11s mesh setup configuration
1277 * @chandef: defines the channel to use
1278 * @mesh_id: the mesh ID
1279 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1280 * @sync_method: which synchronization method to use
1281 * @path_sel_proto: which path selection protocol to use
1282 * @path_metric: which metric to use
1283 * @auth_id: which authentication method this mesh is using
1284 * @ie: vendor information elements (optional)
1285 * @ie_len: length of vendor information elements
1286 * @is_authenticated: this mesh requires authentication
1287 * @is_secure: this mesh uses security
1288 * @user_mpm: userspace handles all MPM functions
1289 * @dtim_period: DTIM period to use
1290 * @beacon_interval: beacon interval to use
1291 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1292 * @basic_rates: basic rates to use when creating the mesh
1294 * These parameters are fixed when the mesh is created.
1297 struct cfg80211_chan_def chandef
;
1306 bool is_authenticated
;
1310 u16 beacon_interval
;
1311 int mcast_rate
[IEEE80211_NUM_BANDS
];
1316 * struct ieee80211_txq_params - TX queue parameters
1317 * @ac: AC identifier
1318 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1319 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1321 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1323 * @aifs: Arbitration interframe space [0..255]
1325 struct ieee80211_txq_params
{
1334 * DOC: Scanning and BSS list handling
1336 * The scanning process itself is fairly simple, but cfg80211 offers quite
1337 * a bit of helper functionality. To start a scan, the scan operation will
1338 * be invoked with a scan definition. This scan definition contains the
1339 * channels to scan, and the SSIDs to send probe requests for (including the
1340 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1341 * probe. Additionally, a scan request may contain extra information elements
1342 * that should be added to the probe request. The IEs are guaranteed to be
1343 * well-formed, and will not exceed the maximum length the driver advertised
1344 * in the wiphy structure.
1346 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1347 * it is responsible for maintaining the BSS list; the driver should not
1348 * maintain a list itself. For this notification, various functions exist.
1350 * Since drivers do not maintain a BSS list, there are also a number of
1351 * functions to search for a BSS and obtain information about it from the
1352 * BSS structure cfg80211 maintains. The BSS list is also made available
1357 * struct cfg80211_ssid - SSID description
1359 * @ssid_len: length of the ssid
1361 struct cfg80211_ssid
{
1362 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1367 * struct cfg80211_scan_request - scan request description
1369 * @ssids: SSIDs to scan for (active scan only)
1370 * @n_ssids: number of SSIDs
1371 * @channels: channels to scan on.
1372 * @n_channels: total number of channels to scan
1373 * @scan_width: channel width for scanning
1374 * @ie: optional information element(s) to add into Probe Request or %NULL
1375 * @ie_len: length of ie in octets
1376 * @flags: bit field of flags controlling operation
1377 * @rates: bitmap of rates to advertise for each band
1378 * @wiphy: the wiphy this was for
1379 * @scan_start: time (in jiffies) when the scan started
1380 * @wdev: the wireless device to scan for
1381 * @aborted: (internal) scan request was notified as aborted
1382 * @notified: (internal) scan request was notified as done or aborted
1383 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1385 struct cfg80211_scan_request
{
1386 struct cfg80211_ssid
*ssids
;
1389 enum nl80211_bss_scan_width scan_width
;
1394 u32 rates
[IEEE80211_NUM_BANDS
];
1396 struct wireless_dev
*wdev
;
1399 struct wiphy
*wiphy
;
1400 unsigned long scan_start
;
1401 bool aborted
, notified
;
1405 struct ieee80211_channel
*channels
[0];
1409 * struct cfg80211_match_set - sets of attributes to match
1411 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
1412 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1414 struct cfg80211_match_set
{
1415 struct cfg80211_ssid ssid
;
1420 * struct cfg80211_sched_scan_request - scheduled scan request description
1422 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1423 * @n_ssids: number of SSIDs
1424 * @n_channels: total number of channels to scan
1425 * @scan_width: channel width for scanning
1426 * @interval: interval between each scheduled scan cycle
1427 * @ie: optional information element(s) to add into Probe Request or %NULL
1428 * @ie_len: length of ie in octets
1429 * @flags: bit field of flags controlling operation
1430 * @match_sets: sets of parameters to be matched for a scan result
1431 * entry to be considered valid and to be passed to the host
1432 * (others are filtered out).
1433 * If ommited, all results are passed.
1434 * @n_match_sets: number of match sets
1435 * @wiphy: the wiphy this was for
1436 * @dev: the interface
1437 * @scan_start: start time of the scheduled scan
1438 * @channels: channels to scan
1439 * @min_rssi_thold: for drivers only supporting a single threshold, this
1440 * contains the minimum over all matchsets
1442 struct cfg80211_sched_scan_request
{
1443 struct cfg80211_ssid
*ssids
;
1446 enum nl80211_bss_scan_width scan_width
;
1451 struct cfg80211_match_set
*match_sets
;
1456 struct wiphy
*wiphy
;
1457 struct net_device
*dev
;
1458 unsigned long scan_start
;
1461 struct ieee80211_channel
*channels
[0];
1465 * enum cfg80211_signal_type - signal type
1467 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1468 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1469 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1471 enum cfg80211_signal_type
{
1472 CFG80211_SIGNAL_TYPE_NONE
,
1473 CFG80211_SIGNAL_TYPE_MBM
,
1474 CFG80211_SIGNAL_TYPE_UNSPEC
,
1478 * struct cfg80211_bss_ie_data - BSS entry IE data
1479 * @tsf: TSF contained in the frame that carried these IEs
1480 * @rcu_head: internal use, for freeing
1481 * @len: length of the IEs
1484 struct cfg80211_bss_ies
{
1486 struct rcu_head rcu_head
;
1492 * struct cfg80211_bss - BSS description
1494 * This structure describes a BSS (which may also be a mesh network)
1495 * for use in scan results and similar.
1497 * @channel: channel this BSS is on
1498 * @scan_width: width of the control channel
1499 * @bssid: BSSID of the BSS
1500 * @beacon_interval: the beacon interval as from the frame
1501 * @capability: the capability field in host byte order
1502 * @ies: the information elements (Note that there is no guarantee that these
1503 * are well-formed!); this is a pointer to either the beacon_ies or
1504 * proberesp_ies depending on whether Probe Response frame has been
1505 * received. It is always non-%NULL.
1506 * @beacon_ies: the information elements from the last Beacon frame
1507 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1508 * own the beacon_ies, but they're just pointers to the ones from the
1509 * @hidden_beacon_bss struct)
1510 * @proberesp_ies: the information elements from the last Probe Response frame
1511 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1512 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1513 * that holds the beacon data. @beacon_ies is still valid, of course, and
1514 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1515 * @signal: signal strength value (type depends on the wiphy's signal_type)
1516 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1518 struct cfg80211_bss
{
1519 struct ieee80211_channel
*channel
;
1520 enum nl80211_bss_scan_width scan_width
;
1522 const struct cfg80211_bss_ies __rcu
*ies
;
1523 const struct cfg80211_bss_ies __rcu
*beacon_ies
;
1524 const struct cfg80211_bss_ies __rcu
*proberesp_ies
;
1526 struct cfg80211_bss
*hidden_beacon_bss
;
1530 u16 beacon_interval
;
1535 u8 priv
[0] __aligned(sizeof(void *));
1539 * ieee80211_bss_get_ie - find IE with given ID
1540 * @bss: the bss to search
1543 * Note that the return value is an RCU-protected pointer, so
1544 * rcu_read_lock() must be held when calling this function.
1545 * Return: %NULL if not found.
1547 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1551 * struct cfg80211_auth_request - Authentication request data
1553 * This structure provides information needed to complete IEEE 802.11
1556 * @bss: The BSS to authenticate with, the callee must obtain a reference
1557 * to it if it needs to keep it.
1558 * @auth_type: Authentication type (algorithm)
1559 * @ie: Extra IEs to add to Authentication frame or %NULL
1560 * @ie_len: Length of ie buffer in octets
1561 * @key_len: length of WEP key for shared key authentication
1562 * @key_idx: index of WEP key for shared key authentication
1563 * @key: WEP key for shared key authentication
1564 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1565 * Authentication transaction sequence number field.
1566 * @sae_data_len: Length of sae_data buffer in octets
1568 struct cfg80211_auth_request
{
1569 struct cfg80211_bss
*bss
;
1572 enum nl80211_auth_type auth_type
;
1574 u8 key_len
, key_idx
;
1576 size_t sae_data_len
;
1580 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1582 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1583 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1585 enum cfg80211_assoc_req_flags
{
1586 ASSOC_REQ_DISABLE_HT
= BIT(0),
1587 ASSOC_REQ_DISABLE_VHT
= BIT(1),
1591 * struct cfg80211_assoc_request - (Re)Association request data
1593 * This structure provides information needed to complete IEEE 802.11
1595 * @bss: The BSS to associate with. If the call is successful the driver is
1596 * given a reference that it must give back to cfg80211_send_rx_assoc()
1597 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1598 * association requests while already associating must be rejected.
1599 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1600 * @ie_len: Length of ie buffer in octets
1601 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1602 * @crypto: crypto settings
1603 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1604 * @flags: See &enum cfg80211_assoc_req_flags
1605 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1606 * will be used in ht_capa. Un-supported values will be ignored.
1607 * @ht_capa_mask: The bits of ht_capa which are to be used.
1608 * @vht_capa: VHT capability override
1609 * @vht_capa_mask: VHT capability mask indicating which fields to use
1611 struct cfg80211_assoc_request
{
1612 struct cfg80211_bss
*bss
;
1613 const u8
*ie
, *prev_bssid
;
1615 struct cfg80211_crypto_settings crypto
;
1618 struct ieee80211_ht_cap ht_capa
;
1619 struct ieee80211_ht_cap ht_capa_mask
;
1620 struct ieee80211_vht_cap vht_capa
, vht_capa_mask
;
1624 * struct cfg80211_deauth_request - Deauthentication request data
1626 * This structure provides information needed to complete IEEE 802.11
1629 * @bssid: the BSSID of the BSS to deauthenticate from
1630 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1631 * @ie_len: Length of ie buffer in octets
1632 * @reason_code: The reason code for the deauthentication
1633 * @local_state_change: if set, change local state only and
1634 * do not set a deauth frame
1636 struct cfg80211_deauth_request
{
1641 bool local_state_change
;
1645 * struct cfg80211_disassoc_request - Disassociation request data
1647 * This structure provides information needed to complete IEEE 802.11
1650 * @bss: the BSS to disassociate from
1651 * @ie: Extra IEs to add to Disassociation frame or %NULL
1652 * @ie_len: Length of ie buffer in octets
1653 * @reason_code: The reason code for the disassociation
1654 * @local_state_change: This is a request for a local state only, i.e., no
1655 * Disassociation frame is to be transmitted.
1657 struct cfg80211_disassoc_request
{
1658 struct cfg80211_bss
*bss
;
1662 bool local_state_change
;
1666 * struct cfg80211_ibss_params - IBSS parameters
1668 * This structure defines the IBSS parameters for the join_ibss()
1671 * @ssid: The SSID, will always be non-null.
1672 * @ssid_len: The length of the SSID, will always be non-zero.
1673 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1674 * search for IBSSs with a different BSSID.
1675 * @chandef: defines the channel to use if no other IBSS to join can be found
1676 * @channel_fixed: The channel should be fixed -- do not search for
1677 * IBSSs to join on other channels.
1678 * @ie: information element(s) to include in the beacon
1679 * @ie_len: length of that
1680 * @beacon_interval: beacon interval to use
1681 * @privacy: this is a protected network, keys will be configured
1683 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1684 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1685 * required to assume that the port is unauthorized until authorized by
1686 * user space. Otherwise, port is marked authorized by default.
1687 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1688 * changes the channel when a radar is detected. This is required
1689 * to operate on DFS channels.
1690 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1691 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1692 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1693 * will be used in ht_capa. Un-supported values will be ignored.
1694 * @ht_capa_mask: The bits of ht_capa which are to be used.
1696 struct cfg80211_ibss_params
{
1699 struct cfg80211_chan_def chandef
;
1701 u8 ssid_len
, ie_len
;
1702 u16 beacon_interval
;
1707 bool userspace_handles_dfs
;
1708 int mcast_rate
[IEEE80211_NUM_BANDS
];
1709 struct ieee80211_ht_cap ht_capa
;
1710 struct ieee80211_ht_cap ht_capa_mask
;
1714 * struct cfg80211_connect_params - Connection parameters
1716 * This structure provides information needed to complete IEEE 802.11
1717 * authentication and association.
1719 * @channel: The channel to use or %NULL if not specified (auto-select based
1721 * @channel_hint: The channel of the recommended BSS for initial connection or
1722 * %NULL if not specified
1723 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1725 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
1726 * %NULL if not specified. Unlike the @bssid parameter, the driver is
1727 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
1730 * @ssid_len: Length of ssid in octets
1731 * @auth_type: Authentication type (algorithm)
1732 * @ie: IEs for association request
1733 * @ie_len: Length of assoc_ie in octets
1734 * @privacy: indicates whether privacy-enabled APs should be used
1735 * @mfp: indicate whether management frame protection is used
1736 * @crypto: crypto settings
1737 * @key_len: length of WEP key for shared key authentication
1738 * @key_idx: index of WEP key for shared key authentication
1739 * @key: WEP key for shared key authentication
1740 * @flags: See &enum cfg80211_assoc_req_flags
1741 * @bg_scan_period: Background scan period in seconds
1742 * or -1 to indicate that default value is to be used.
1743 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1744 * will be used in ht_capa. Un-supported values will be ignored.
1745 * @ht_capa_mask: The bits of ht_capa which are to be used.
1746 * @vht_capa: VHT Capability overrides
1747 * @vht_capa_mask: The bits of vht_capa which are to be used.
1749 struct cfg80211_connect_params
{
1750 struct ieee80211_channel
*channel
;
1751 struct ieee80211_channel
*channel_hint
;
1753 const u8
*bssid_hint
;
1756 enum nl80211_auth_type auth_type
;
1760 enum nl80211_mfp mfp
;
1761 struct cfg80211_crypto_settings crypto
;
1763 u8 key_len
, key_idx
;
1766 struct ieee80211_ht_cap ht_capa
;
1767 struct ieee80211_ht_cap ht_capa_mask
;
1768 struct ieee80211_vht_cap vht_capa
;
1769 struct ieee80211_vht_cap vht_capa_mask
;
1773 * enum wiphy_params_flags - set_wiphy_params bitfield values
1774 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1775 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1776 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1777 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1778 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1780 enum wiphy_params_flags
{
1781 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1782 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1783 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1784 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1785 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1789 * cfg80211_bitrate_mask - masks for bitrate control
1791 struct cfg80211_bitrate_mask
{
1794 u8 ht_mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1795 u16 vht_mcs
[NL80211_VHT_NSS_MAX
];
1796 enum nl80211_txrate_gi gi
;
1797 } control
[IEEE80211_NUM_BANDS
];
1800 * struct cfg80211_pmksa - PMK Security Association
1802 * This structure is passed to the set/del_pmksa() method for PMKSA
1805 * @bssid: The AP's BSSID.
1806 * @pmkid: The PMK material itself.
1808 struct cfg80211_pmksa
{
1814 * struct cfg80211_pkt_pattern - packet pattern
1815 * @mask: bitmask where to match pattern and where to ignore bytes,
1816 * one bit per byte, in same format as nl80211
1817 * @pattern: bytes to match where bitmask is 1
1818 * @pattern_len: length of pattern (in bytes)
1819 * @pkt_offset: packet offset (in bytes)
1821 * Internal note: @mask and @pattern are allocated in one chunk of
1822 * memory, free @mask only!
1824 struct cfg80211_pkt_pattern
{
1831 * struct cfg80211_wowlan_tcp - TCP connection parameters
1833 * @sock: (internal) socket for source port allocation
1834 * @src: source IP address
1835 * @dst: destination IP address
1836 * @dst_mac: destination MAC address
1837 * @src_port: source port
1838 * @dst_port: destination port
1839 * @payload_len: data payload length
1840 * @payload: data payload buffer
1841 * @payload_seq: payload sequence stamping configuration
1842 * @data_interval: interval at which to send data packets
1843 * @wake_len: wakeup payload match length
1844 * @wake_data: wakeup payload match data
1845 * @wake_mask: wakeup payload match mask
1846 * @tokens_size: length of the tokens buffer
1847 * @payload_tok: payload token usage configuration
1849 struct cfg80211_wowlan_tcp
{
1850 struct socket
*sock
;
1852 u16 src_port
, dst_port
;
1853 u8 dst_mac
[ETH_ALEN
];
1856 struct nl80211_wowlan_tcp_data_seq payload_seq
;
1859 const u8
*wake_data
, *wake_mask
;
1861 /* must be last, variable member */
1862 struct nl80211_wowlan_tcp_data_token payload_tok
;
1866 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1868 * This structure defines the enabled WoWLAN triggers for the device.
1869 * @any: wake up on any activity -- special trigger if device continues
1870 * operating as normal during suspend
1871 * @disconnect: wake up if getting disconnected
1872 * @magic_pkt: wake up on receiving magic packet
1873 * @patterns: wake up on receiving packet matching a pattern
1874 * @n_patterns: number of patterns
1875 * @gtk_rekey_failure: wake up on GTK rekey failure
1876 * @eap_identity_req: wake up on EAP identity request packet
1877 * @four_way_handshake: wake up on 4-way handshake
1878 * @rfkill_release: wake up when rfkill is released
1879 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
1880 * NULL if not configured.
1882 struct cfg80211_wowlan
{
1883 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1884 eap_identity_req
, four_way_handshake
,
1886 struct cfg80211_pkt_pattern
*patterns
;
1887 struct cfg80211_wowlan_tcp
*tcp
;
1892 * struct cfg80211_coalesce_rules - Coalesce rule parameters
1894 * This structure defines coalesce rule for the device.
1895 * @delay: maximum coalescing delay in msecs.
1896 * @condition: condition for packet coalescence.
1897 * see &enum nl80211_coalesce_condition.
1898 * @patterns: array of packet patterns
1899 * @n_patterns: number of patterns
1901 struct cfg80211_coalesce_rules
{
1903 enum nl80211_coalesce_condition condition
;
1904 struct cfg80211_pkt_pattern
*patterns
;
1909 * struct cfg80211_coalesce - Packet coalescing settings
1911 * This structure defines coalescing settings.
1912 * @rules: array of coalesce rules
1913 * @n_rules: number of rules
1915 struct cfg80211_coalesce
{
1916 struct cfg80211_coalesce_rules
*rules
;
1921 * struct cfg80211_wowlan_wakeup - wakeup report
1922 * @disconnect: woke up by getting disconnected
1923 * @magic_pkt: woke up by receiving magic packet
1924 * @gtk_rekey_failure: woke up by GTK rekey failure
1925 * @eap_identity_req: woke up by EAP identity request packet
1926 * @four_way_handshake: woke up by 4-way handshake
1927 * @rfkill_release: woke up by rfkill being released
1928 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
1929 * @packet_present_len: copied wakeup packet data
1930 * @packet_len: original wakeup packet length
1931 * @packet: The packet causing the wakeup, if any.
1932 * @packet_80211: For pattern match, magic packet and other data
1933 * frame triggers an 802.3 frame should be reported, for
1934 * disconnect due to deauth 802.11 frame. This indicates which
1936 * @tcp_match: TCP wakeup packet received
1937 * @tcp_connlost: TCP connection lost or failed to establish
1938 * @tcp_nomoretokens: TCP data ran out of tokens
1940 struct cfg80211_wowlan_wakeup
{
1941 bool disconnect
, magic_pkt
, gtk_rekey_failure
,
1942 eap_identity_req
, four_way_handshake
,
1943 rfkill_release
, packet_80211
,
1944 tcp_match
, tcp_connlost
, tcp_nomoretokens
;
1946 u32 packet_present_len
, packet_len
;
1951 * struct cfg80211_gtk_rekey_data - rekey data
1952 * @kek: key encryption key
1953 * @kck: key confirmation key
1954 * @replay_ctr: replay counter
1956 struct cfg80211_gtk_rekey_data
{
1957 u8 kek
[NL80211_KEK_LEN
];
1958 u8 kck
[NL80211_KCK_LEN
];
1959 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1963 * struct cfg80211_update_ft_ies_params - FT IE Information
1965 * This structure provides information needed to update the fast transition IE
1967 * @md: The Mobility Domain ID, 2 Octet value
1968 * @ie: Fast Transition IEs
1969 * @ie_len: Length of ft_ie in octets
1971 struct cfg80211_update_ft_ies_params
{
1978 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
1980 * This structure provides information needed to transmit a mgmt frame
1982 * @chan: channel to use
1983 * @offchan: indicates wether off channel operation is required
1984 * @wait: duration for ROC
1985 * @buf: buffer to transmit
1986 * @len: buffer length
1987 * @no_cck: don't use cck rates for this frame
1988 * @dont_wait_for_ack: tells the low level not to wait for an ack
1989 * @n_csa_offsets: length of csa_offsets array
1990 * @csa_offsets: array of all the csa offsets in the frame
1992 struct cfg80211_mgmt_tx_params
{
1993 struct ieee80211_channel
*chan
;
1999 bool dont_wait_for_ack
;
2001 const u16
*csa_offsets
;
2005 * struct cfg80211_dscp_exception - DSCP exception
2007 * @dscp: DSCP value that does not adhere to the user priority range definition
2008 * @up: user priority value to which the corresponding DSCP value belongs
2010 struct cfg80211_dscp_exception
{
2016 * struct cfg80211_dscp_range - DSCP range definition for user priority
2018 * @low: lowest DSCP value of this user priority range, inclusive
2019 * @high: highest DSCP value of this user priority range, inclusive
2021 struct cfg80211_dscp_range
{
2026 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2027 #define IEEE80211_QOS_MAP_MAX_EX 21
2028 #define IEEE80211_QOS_MAP_LEN_MIN 16
2029 #define IEEE80211_QOS_MAP_LEN_MAX \
2030 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2033 * struct cfg80211_qos_map - QoS Map Information
2035 * This struct defines the Interworking QoS map setting for DSCP values
2037 * @num_des: number of DSCP exceptions (0..21)
2038 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2039 * the user priority DSCP range definition
2040 * @up: DSCP range definition for a particular user priority
2042 struct cfg80211_qos_map
{
2044 struct cfg80211_dscp_exception dscp_exception
[IEEE80211_QOS_MAP_MAX_EX
];
2045 struct cfg80211_dscp_range up
[8];
2049 * struct cfg80211_ops - backend description for wireless configuration
2051 * This struct is registered by fullmac card drivers and/or wireless stacks
2052 * in order to handle configuration requests on their interfaces.
2054 * All callbacks except where otherwise noted should return 0
2055 * on success or a negative error code.
2057 * All operations are currently invoked under rtnl for consistency with the
2058 * wireless extensions but this is subject to reevaluation as soon as this
2059 * code is used more widely and we have a first user without wext.
2061 * @suspend: wiphy device needs to be suspended. The variable @wow will
2062 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2063 * configured for the device.
2064 * @resume: wiphy device needs to be resumed
2065 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2066 * to call device_set_wakeup_enable() to enable/disable wakeup from
2069 * @add_virtual_intf: create a new virtual interface with the given name,
2070 * must set the struct wireless_dev's iftype. Beware: You must create
2071 * the new netdev in the wiphy's network namespace! Returns the struct
2072 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2073 * also set the address member in the wdev.
2075 * @del_virtual_intf: remove the virtual interface
2077 * @change_virtual_intf: change type/configuration of virtual interface,
2078 * keep the struct wireless_dev's iftype updated.
2080 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2081 * when adding a group key.
2083 * @get_key: get information about the key with the given parameters.
2084 * @mac_addr will be %NULL when requesting information for a group
2085 * key. All pointers given to the @callback function need not be valid
2086 * after it returns. This function should return an error if it is
2087 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2089 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2090 * and @key_index, return -ENOENT if the key doesn't exist.
2092 * @set_default_key: set the default key on an interface
2094 * @set_default_mgmt_key: set the default management frame key on an interface
2096 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2098 * @start_ap: Start acting in AP mode defined by the parameters.
2099 * @change_beacon: Change the beacon parameters for an access point mode
2100 * interface. This should reject the call when AP mode wasn't started.
2101 * @stop_ap: Stop being an AP, including stopping beaconing.
2103 * @add_station: Add a new station.
2104 * @del_station: Remove a station; @mac may be NULL to remove all stations.
2105 * @change_station: Modify a given station. Note that flags changes are not much
2106 * validated in cfg80211, in particular the auth/assoc/authorized flags
2107 * might come to the driver in invalid combinations -- make sure to check
2108 * them, also against the existing state! Drivers must call
2109 * cfg80211_check_station_change() to validate the information.
2110 * @get_station: get station information for the station identified by @mac
2111 * @dump_station: dump station callback -- resume dump at index @idx
2113 * @add_mpath: add a fixed mesh path
2114 * @del_mpath: delete a given mesh path
2115 * @change_mpath: change a given mesh path
2116 * @get_mpath: get a mesh path for the given parameters
2117 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2118 * @join_mesh: join the mesh network with the specified parameters
2119 * (invoked with the wireless_dev mutex held)
2120 * @leave_mesh: leave the current mesh network
2121 * (invoked with the wireless_dev mutex held)
2123 * @get_mesh_config: Get the current mesh configuration
2125 * @update_mesh_config: Update mesh parameters on a running mesh.
2126 * The mask is a bitfield which tells us which parameters to
2127 * set, and which to leave alone.
2129 * @change_bss: Modify parameters for a given BSS.
2131 * @set_txq_params: Set TX queue parameters
2133 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2134 * as it doesn't implement join_mesh and needs to set the channel to
2135 * join the mesh instead.
2137 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2138 * interfaces are active this callback should reject the configuration.
2139 * If no interfaces are active or the device is down, the channel should
2140 * be stored for when a monitor interface becomes active.
2142 * @scan: Request to do a scan. If returning zero, the scan request is given
2143 * the driver, and will be valid until passed to cfg80211_scan_done().
2144 * For scan results, call cfg80211_inform_bss(); you can call this outside
2145 * the scan/scan_done bracket too.
2147 * @auth: Request to authenticate with the specified peer
2148 * (invoked with the wireless_dev mutex held)
2149 * @assoc: Request to (re)associate with the specified peer
2150 * (invoked with the wireless_dev mutex held)
2151 * @deauth: Request to deauthenticate from the specified peer
2152 * (invoked with the wireless_dev mutex held)
2153 * @disassoc: Request to disassociate from the specified peer
2154 * (invoked with the wireless_dev mutex held)
2156 * @connect: Connect to the ESS with the specified parameters. When connected,
2157 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
2158 * If the connection fails for some reason, call cfg80211_connect_result()
2159 * with the status from the AP.
2160 * (invoked with the wireless_dev mutex held)
2161 * @disconnect: Disconnect from the BSS/ESS.
2162 * (invoked with the wireless_dev mutex held)
2164 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2165 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2167 * (invoked with the wireless_dev mutex held)
2168 * @leave_ibss: Leave the IBSS.
2169 * (invoked with the wireless_dev mutex held)
2171 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2174 * @set_wiphy_params: Notify that wiphy parameters have changed;
2175 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2176 * have changed. The actual parameter values are available in
2177 * struct wiphy. If returning an error, no value should be changed.
2179 * @set_tx_power: set the transmit power according to the parameters,
2180 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2181 * wdev may be %NULL if power was set for the wiphy, and will
2182 * always be %NULL unless the driver supports per-vif TX power
2183 * (as advertised by the nl80211 feature flag.)
2184 * @get_tx_power: store the current TX power into the dbm variable;
2185 * return 0 if successful
2187 * @set_wds_peer: set the WDS peer for a WDS interface
2189 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2190 * functions to adjust rfkill hw state
2192 * @dump_survey: get site survey information.
2194 * @remain_on_channel: Request the driver to remain awake on the specified
2195 * channel for the specified duration to complete an off-channel
2196 * operation (e.g., public action frame exchange). When the driver is
2197 * ready on the requested channel, it must indicate this with an event
2198 * notification by calling cfg80211_ready_on_channel().
2199 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2200 * This allows the operation to be terminated prior to timeout based on
2201 * the duration value.
2202 * @mgmt_tx: Transmit a management frame.
2203 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2204 * frame on another channel
2206 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2207 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2208 * used by the function, but 0 and 1 must not be touched. Additionally,
2209 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2210 * dump and return to userspace with an error, so be careful. If any data
2211 * was passed in from userspace then the data/len arguments will be present
2212 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2214 * @set_bitrate_mask: set the bitrate mask configuration
2216 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2217 * devices running firmwares capable of generating the (re) association
2218 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2219 * @del_pmksa: Delete a cached PMKID.
2220 * @flush_pmksa: Flush all cached PMKIDs.
2221 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2222 * allows the driver to adjust the dynamic ps timeout value.
2223 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2224 * @set_cqm_txe_config: Configure connection quality monitor TX error
2226 * @sched_scan_start: Tell the driver to start a scheduled scan.
2227 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
2228 * call must stop the scheduled scan and be ready for starting a new one
2229 * before it returns, i.e. @sched_scan_start may be called immediately
2230 * after that again and should not fail in that case. The driver should
2231 * not call cfg80211_sched_scan_stopped() for a requested stop (when this
2232 * method returns 0.)
2234 * @mgmt_frame_register: Notify driver that a management frame type was
2235 * registered. Note that this callback may not sleep, and cannot run
2236 * concurrently with itself.
2238 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2239 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2240 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2241 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2243 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2245 * @set_ringparam: Set tx and rx ring sizes.
2247 * @get_ringparam: Get tx and rx ring current and maximum sizes.
2249 * @tdls_mgmt: Transmit a TDLS management frame.
2250 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2252 * @probe_client: probe an associated client, must return a cookie that it
2253 * later passes to cfg80211_probe_status().
2255 * @set_noack_map: Set the NoAck Map for the TIDs.
2257 * @get_et_sset_count: Ethtool API to get string-set count.
2258 * See @ethtool_ops.get_sset_count
2260 * @get_et_stats: Ethtool API to get a set of u64 stats.
2261 * See @ethtool_ops.get_ethtool_stats
2263 * @get_et_strings: Ethtool API to get a set of strings to describe stats
2264 * and perhaps other supported types of ethtool data-sets.
2265 * See @ethtool_ops.get_strings
2267 * @get_channel: Get the current operating channel for the virtual interface.
2268 * For monitor interfaces, it should return %NULL unless there's a single
2269 * current monitoring channel.
2271 * @start_p2p_device: Start the given P2P device.
2272 * @stop_p2p_device: Stop the given P2P device.
2274 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2275 * Parameters include ACL policy, an array of MAC address of stations
2276 * and the number of MAC addresses. If there is already a list in driver
2277 * this new list replaces the existing one. Driver has to clear its ACL
2278 * when number of MAC addresses entries is passed as 0. Drivers which
2279 * advertise the support for MAC based ACL have to implement this callback.
2281 * @start_radar_detection: Start radar detection in the driver.
2283 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2284 * driver. If the SME is in the driver/firmware, this information can be
2285 * used in building Authentication and Reassociation Request frames.
2287 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2288 * for a given duration (milliseconds). The protocol is provided so the
2289 * driver can take the most appropriate actions.
2290 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2291 * reliability. This operation can not fail.
2292 * @set_coalesce: Set coalesce parameters.
2294 * @channel_switch: initiate channel-switch procedure (with CSA)
2296 * @set_qos_map: Set QoS mapping information to the driver
2298 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2299 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2300 * changes during the lifetime of the BSS.
2302 struct cfg80211_ops
{
2303 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
2304 int (*resume
)(struct wiphy
*wiphy
);
2305 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
2307 struct wireless_dev
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
2309 enum nl80211_iftype type
,
2311 struct vif_params
*params
);
2312 int (*del_virtual_intf
)(struct wiphy
*wiphy
,
2313 struct wireless_dev
*wdev
);
2314 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
2315 struct net_device
*dev
,
2316 enum nl80211_iftype type
, u32
*flags
,
2317 struct vif_params
*params
);
2319 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2320 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2321 struct key_params
*params
);
2322 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2323 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2325 void (*callback
)(void *cookie
, struct key_params
*));
2326 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2327 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
2328 int (*set_default_key
)(struct wiphy
*wiphy
,
2329 struct net_device
*netdev
,
2330 u8 key_index
, bool unicast
, bool multicast
);
2331 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
2332 struct net_device
*netdev
,
2335 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2336 struct cfg80211_ap_settings
*settings
);
2337 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2338 struct cfg80211_beacon_data
*info
);
2339 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2342 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2343 u8
*mac
, struct station_parameters
*params
);
2344 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2346 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2347 u8
*mac
, struct station_parameters
*params
);
2348 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2349 u8
*mac
, struct station_info
*sinfo
);
2350 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2351 int idx
, u8
*mac
, struct station_info
*sinfo
);
2353 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2354 u8
*dst
, u8
*next_hop
);
2355 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2357 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2358 u8
*dst
, u8
*next_hop
);
2359 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2360 u8
*dst
, u8
*next_hop
,
2361 struct mpath_info
*pinfo
);
2362 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2363 int idx
, u8
*dst
, u8
*next_hop
,
2364 struct mpath_info
*pinfo
);
2365 int (*get_mesh_config
)(struct wiphy
*wiphy
,
2366 struct net_device
*dev
,
2367 struct mesh_config
*conf
);
2368 int (*update_mesh_config
)(struct wiphy
*wiphy
,
2369 struct net_device
*dev
, u32 mask
,
2370 const struct mesh_config
*nconf
);
2371 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2372 const struct mesh_config
*conf
,
2373 const struct mesh_setup
*setup
);
2374 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2376 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2377 struct bss_parameters
*params
);
2379 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2380 struct ieee80211_txq_params
*params
);
2382 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
2383 struct net_device
*dev
,
2384 struct ieee80211_channel
*chan
);
2386 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
2387 struct cfg80211_chan_def
*chandef
);
2389 int (*scan
)(struct wiphy
*wiphy
,
2390 struct cfg80211_scan_request
*request
);
2392 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2393 struct cfg80211_auth_request
*req
);
2394 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2395 struct cfg80211_assoc_request
*req
);
2396 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2397 struct cfg80211_deauth_request
*req
);
2398 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2399 struct cfg80211_disassoc_request
*req
);
2401 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2402 struct cfg80211_connect_params
*sme
);
2403 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2406 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2407 struct cfg80211_ibss_params
*params
);
2408 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2410 int (*set_mcast_rate
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2411 int rate
[IEEE80211_NUM_BANDS
]);
2413 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
2415 int (*set_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2416 enum nl80211_tx_power_setting type
, int mbm
);
2417 int (*get_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2420 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2423 void (*rfkill_poll
)(struct wiphy
*wiphy
);
2425 #ifdef CONFIG_NL80211_TESTMODE
2426 int (*testmode_cmd
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2427 void *data
, int len
);
2428 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
2429 struct netlink_callback
*cb
,
2430 void *data
, int len
);
2433 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
2434 struct net_device
*dev
,
2436 const struct cfg80211_bitrate_mask
*mask
);
2438 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2439 int idx
, struct survey_info
*info
);
2441 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2442 struct cfg80211_pmksa
*pmksa
);
2443 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2444 struct cfg80211_pmksa
*pmksa
);
2445 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
2447 int (*remain_on_channel
)(struct wiphy
*wiphy
,
2448 struct wireless_dev
*wdev
,
2449 struct ieee80211_channel
*chan
,
2450 unsigned int duration
,
2452 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
2453 struct wireless_dev
*wdev
,
2456 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2457 struct cfg80211_mgmt_tx_params
*params
,
2459 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
2460 struct wireless_dev
*wdev
,
2463 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2464 bool enabled
, int timeout
);
2466 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
2467 struct net_device
*dev
,
2468 s32 rssi_thold
, u32 rssi_hyst
);
2470 int (*set_cqm_txe_config
)(struct wiphy
*wiphy
,
2471 struct net_device
*dev
,
2472 u32 rate
, u32 pkts
, u32 intvl
);
2474 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
2475 struct wireless_dev
*wdev
,
2476 u16 frame_type
, bool reg
);
2478 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
2479 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
2481 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
2482 void (*get_ringparam
)(struct wiphy
*wiphy
,
2483 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
2485 int (*sched_scan_start
)(struct wiphy
*wiphy
,
2486 struct net_device
*dev
,
2487 struct cfg80211_sched_scan_request
*request
);
2488 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2490 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2491 struct cfg80211_gtk_rekey_data
*data
);
2493 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2494 u8
*peer
, u8 action_code
, u8 dialog_token
,
2495 u16 status_code
, u32 peer_capability
,
2496 const u8
*buf
, size_t len
);
2497 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2498 u8
*peer
, enum nl80211_tdls_operation oper
);
2500 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2501 const u8
*peer
, u64
*cookie
);
2503 int (*set_noack_map
)(struct wiphy
*wiphy
,
2504 struct net_device
*dev
,
2507 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
2508 struct net_device
*dev
, int sset
);
2509 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2510 struct ethtool_stats
*stats
, u64
*data
);
2511 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2512 u32 sset
, u8
*data
);
2514 int (*get_channel
)(struct wiphy
*wiphy
,
2515 struct wireless_dev
*wdev
,
2516 struct cfg80211_chan_def
*chandef
);
2518 int (*start_p2p_device
)(struct wiphy
*wiphy
,
2519 struct wireless_dev
*wdev
);
2520 void (*stop_p2p_device
)(struct wiphy
*wiphy
,
2521 struct wireless_dev
*wdev
);
2523 int (*set_mac_acl
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2524 const struct cfg80211_acl_data
*params
);
2526 int (*start_radar_detection
)(struct wiphy
*wiphy
,
2527 struct net_device
*dev
,
2528 struct cfg80211_chan_def
*chandef
,
2530 int (*update_ft_ies
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2531 struct cfg80211_update_ft_ies_params
*ftie
);
2532 int (*crit_proto_start
)(struct wiphy
*wiphy
,
2533 struct wireless_dev
*wdev
,
2534 enum nl80211_crit_proto_id protocol
,
2536 void (*crit_proto_stop
)(struct wiphy
*wiphy
,
2537 struct wireless_dev
*wdev
);
2538 int (*set_coalesce
)(struct wiphy
*wiphy
,
2539 struct cfg80211_coalesce
*coalesce
);
2541 int (*channel_switch
)(struct wiphy
*wiphy
,
2542 struct net_device
*dev
,
2543 struct cfg80211_csa_settings
*params
);
2545 int (*set_qos_map
)(struct wiphy
*wiphy
,
2546 struct net_device
*dev
,
2547 struct cfg80211_qos_map
*qos_map
);
2549 int (*set_ap_chanwidth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2550 struct cfg80211_chan_def
*chandef
);
2554 * wireless hardware and networking interfaces structures
2555 * and registration/helper functions
2559 * enum wiphy_flags - wiphy capability flags
2561 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2563 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2564 * by default -- this flag will be set depending on the kernel's default
2565 * on wiphy_new(), but can be changed by the driver if it has a good
2566 * reason to override the default
2567 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2568 * on a VLAN interface)
2569 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2570 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2571 * control port protocol ethertype. The device also honours the
2572 * control_port_no_encrypt flag.
2573 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2574 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2575 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2576 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2577 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2579 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2580 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2581 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2582 * link setup/discovery operations internally. Setup, discovery and
2583 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2584 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2585 * used for asking the driver/firmware to perform a TDLS operation.
2586 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2587 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2588 * when there are virtual interfaces in AP mode by calling
2589 * cfg80211_report_obss_beacon().
2590 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2591 * responds to probe-requests in hardware.
2592 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2593 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2594 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
2595 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
2596 * beaconing mode (AP, IBSS, Mesh, ...).
2602 WIPHY_FLAG_NETNS_OK
= BIT(3),
2603 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
2604 WIPHY_FLAG_4ADDR_AP
= BIT(5),
2605 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
2606 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
2607 WIPHY_FLAG_IBSS_RSN
= BIT(8),
2608 WIPHY_FLAG_MESH_AUTH
= BIT(10),
2609 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
2610 /* use hole at 12 */
2611 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
2612 WIPHY_FLAG_AP_UAPSD
= BIT(14),
2613 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
2614 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
2615 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
2616 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
2617 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
2618 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
2619 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
2620 WIPHY_FLAG_SUPPORTS_5_10_MHZ
= BIT(22),
2621 WIPHY_FLAG_HAS_CHANNEL_SWITCH
= BIT(23),
2625 * struct ieee80211_iface_limit - limit on certain interface types
2626 * @max: maximum number of interfaces of these types
2627 * @types: interface types (bits)
2629 struct ieee80211_iface_limit
{
2635 * struct ieee80211_iface_combination - possible interface combination
2636 * @limits: limits for the given interface types
2637 * @n_limits: number of limitations
2638 * @num_different_channels: can use up to this many different channels
2639 * @max_interfaces: maximum number of interfaces in total allowed in this
2641 * @beacon_int_infra_match: In this combination, the beacon intervals
2642 * between infrastructure and AP types must match. This is required
2643 * only in special cases.
2644 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2645 * @radar_detect_regions: bitmap of regions supported for radar detection
2647 * With this structure the driver can describe which interface
2648 * combinations it supports concurrently.
2652 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2654 * struct ieee80211_iface_limit limits1[] = {
2655 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2656 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2658 * struct ieee80211_iface_combination combination1 = {
2659 * .limits = limits1,
2660 * .n_limits = ARRAY_SIZE(limits1),
2661 * .max_interfaces = 2,
2662 * .beacon_int_infra_match = true,
2666 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2668 * struct ieee80211_iface_limit limits2[] = {
2669 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2670 * BIT(NL80211_IFTYPE_P2P_GO), },
2672 * struct ieee80211_iface_combination combination2 = {
2673 * .limits = limits2,
2674 * .n_limits = ARRAY_SIZE(limits2),
2675 * .max_interfaces = 8,
2676 * .num_different_channels = 1,
2680 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2682 * This allows for an infrastructure connection and three P2P connections.
2684 * struct ieee80211_iface_limit limits3[] = {
2685 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2686 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2687 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2689 * struct ieee80211_iface_combination combination3 = {
2690 * .limits = limits3,
2691 * .n_limits = ARRAY_SIZE(limits3),
2692 * .max_interfaces = 4,
2693 * .num_different_channels = 2,
2696 struct ieee80211_iface_combination
{
2697 const struct ieee80211_iface_limit
*limits
;
2698 u32 num_different_channels
;
2701 bool beacon_int_infra_match
;
2702 u8 radar_detect_widths
;
2703 u8 radar_detect_regions
;
2706 struct ieee80211_txrx_stypes
{
2711 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2712 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2713 * trigger that keeps the device operating as-is and
2714 * wakes up the host on any activity, for example a
2715 * received packet that passed filtering; note that the
2716 * packet should be preserved in that case
2717 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2719 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2720 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2721 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2722 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2723 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2724 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2726 enum wiphy_wowlan_support_flags
{
2727 WIPHY_WOWLAN_ANY
= BIT(0),
2728 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
2729 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
2730 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
2731 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
2732 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
2733 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
2734 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2737 struct wiphy_wowlan_tcp_support
{
2738 const struct nl80211_wowlan_tcp_data_token_feature
*tok
;
2739 u32 data_payload_max
;
2740 u32 data_interval_max
;
2741 u32 wake_payload_max
;
2746 * struct wiphy_wowlan_support - WoWLAN support data
2747 * @flags: see &enum wiphy_wowlan_support_flags
2748 * @n_patterns: number of supported wakeup patterns
2749 * (see nl80211.h for the pattern definition)
2750 * @pattern_max_len: maximum length of each pattern
2751 * @pattern_min_len: minimum length of each pattern
2752 * @max_pkt_offset: maximum Rx packet offset
2753 * @tcp: TCP wakeup support information
2755 struct wiphy_wowlan_support
{
2758 int pattern_max_len
;
2759 int pattern_min_len
;
2761 const struct wiphy_wowlan_tcp_support
*tcp
;
2765 * struct wiphy_coalesce_support - coalesce support data
2766 * @n_rules: maximum number of coalesce rules
2767 * @max_delay: maximum supported coalescing delay in msecs
2768 * @n_patterns: number of supported patterns in a rule
2769 * (see nl80211.h for the pattern definition)
2770 * @pattern_max_len: maximum length of each pattern
2771 * @pattern_min_len: minimum length of each pattern
2772 * @max_pkt_offset: maximum Rx packet offset
2774 struct wiphy_coalesce_support
{
2778 int pattern_max_len
;
2779 int pattern_min_len
;
2784 * enum wiphy_vendor_command_flags - validation flags for vendor commands
2785 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
2786 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
2787 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
2788 * (must be combined with %_WDEV or %_NETDEV)
2790 enum wiphy_vendor_command_flags
{
2791 WIPHY_VENDOR_CMD_NEED_WDEV
= BIT(0),
2792 WIPHY_VENDOR_CMD_NEED_NETDEV
= BIT(1),
2793 WIPHY_VENDOR_CMD_NEED_RUNNING
= BIT(2),
2797 * struct wiphy_vendor_command - vendor command definition
2798 * @info: vendor command identifying information, as used in nl80211
2799 * @flags: flags, see &enum wiphy_vendor_command_flags
2800 * @doit: callback for the operation, note that wdev is %NULL if the
2801 * flags didn't ask for a wdev and non-%NULL otherwise; the data
2802 * pointer may be %NULL if userspace provided no data at all
2804 struct wiphy_vendor_command
{
2805 struct nl80211_vendor_cmd_info info
;
2807 int (*doit
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2808 const void *data
, int data_len
);
2812 * struct wiphy - wireless hardware description
2813 * @reg_notifier: the driver's regulatory notification callback,
2814 * note that if your driver uses wiphy_apply_custom_regulatory()
2815 * the reg_notifier's request can be passed as NULL
2816 * @regd: the driver's regulatory domain, if one was requested via
2817 * the regulatory_hint() API. This can be used by the driver
2818 * on the reg_notifier() if it chooses to ignore future
2819 * regulatory domain changes caused by other drivers.
2820 * @signal_type: signal type reported in &struct cfg80211_bss.
2821 * @cipher_suites: supported cipher suites
2822 * @n_cipher_suites: number of supported cipher suites
2823 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2824 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2825 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2826 * -1 = fragmentation disabled, only odd values >= 256 used
2827 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2828 * @_net: the network namespace this wiphy currently lives in
2829 * @perm_addr: permanent MAC address of this device
2830 * @addr_mask: If the device supports multiple MAC addresses by masking,
2831 * set this to a mask with variable bits set to 1, e.g. if the last
2832 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
2833 * variable bits shall be determined by the interfaces added, with
2834 * interfaces not matching the mask being rejected to be brought up.
2835 * @n_addresses: number of addresses in @addresses.
2836 * @addresses: If the device has more than one address, set this pointer
2837 * to a list of addresses (6 bytes each). The first one will be used
2838 * by default for perm_addr. In this case, the mask should be set to
2839 * all-zeroes. In this case it is assumed that the device can handle
2840 * the same number of arbitrary MAC addresses.
2841 * @registered: protects ->resume and ->suspend sysfs callbacks against
2842 * unregister hardware
2843 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2844 * automatically on wiphy renames
2845 * @dev: (virtual) struct device for this wiphy
2846 * @registered: helps synchronize suspend/resume with wiphy unregister
2847 * @wext: wireless extension handlers
2848 * @priv: driver private data (sized according to wiphy_new() parameter)
2849 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2850 * must be set by driver
2851 * @iface_combinations: Valid interface combinations array, should not
2852 * list single interface types.
2853 * @n_iface_combinations: number of entries in @iface_combinations array.
2854 * @software_iftypes: bitmask of software interface types, these are not
2855 * subject to any restrictions since they are purely managed in SW.
2856 * @flags: wiphy flags, see &enum wiphy_flags
2857 * @regulatory_flags: wiphy regulatory flags, see
2858 * &enum ieee80211_regulatory_flags
2859 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2860 * @bss_priv_size: each BSS struct has private data allocated with it,
2861 * this variable determines its size
2862 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2864 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2865 * for in any given scheduled scan
2866 * @max_match_sets: maximum number of match sets the device can handle
2867 * when performing a scheduled scan, 0 if filtering is not
2869 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2870 * add to probe request frames transmitted during a scan, must not
2871 * include fixed IEs like supported rates
2872 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2874 * @coverage_class: current coverage class
2875 * @fw_version: firmware version for ethtool reporting
2876 * @hw_version: hardware version for ethtool reporting
2877 * @max_num_pmkids: maximum number of PMKIDs supported by device
2878 * @privid: a pointer that drivers can use to identify if an arbitrary
2879 * wiphy is theirs, e.g. in global notifiers
2880 * @bands: information about bands/channels supported by this device
2882 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2883 * transmitted through nl80211, points to an array indexed by interface
2886 * @available_antennas_tx: bitmap of antennas which are available to be
2887 * configured as TX antennas. Antenna configuration commands will be
2888 * rejected unless this or @available_antennas_rx is set.
2890 * @available_antennas_rx: bitmap of antennas which are available to be
2891 * configured as RX antennas. Antenna configuration commands will be
2892 * rejected unless this or @available_antennas_tx is set.
2894 * @probe_resp_offload:
2895 * Bitmap of supported protocols for probe response offloading.
2896 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2897 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2899 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2900 * may request, if implemented.
2902 * @wowlan: WoWLAN support information
2903 * @wowlan_config: current WoWLAN configuration; this should usually not be
2904 * used since access to it is necessarily racy, use the parameter passed
2905 * to the suspend() operation instead.
2907 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2908 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2909 * If null, then none can be over-ridden.
2910 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
2911 * If null, then none can be over-ridden.
2913 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
2916 * @extended_capabilities: extended capabilities supported by the driver,
2917 * additional capabilities might be supported by userspace; these are
2918 * the 802.11 extended capabilities ("Extended Capabilities element")
2919 * and are in the same format as in the information element. See
2920 * 802.11-2012 8.4.2.29 for the defined fields.
2921 * @extended_capabilities_mask: mask of the valid values
2922 * @extended_capabilities_len: length of the extended capabilities
2923 * @coalesce: packet coalescing support information
2925 * @vendor_commands: array of vendor commands supported by the hardware
2926 * @n_vendor_commands: number of vendor commands
2927 * @vendor_events: array of vendor events supported by the hardware
2928 * @n_vendor_events: number of vendor events
2930 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
2931 * (including P2P GO) or 0 to indicate no such limit is advertised. The
2932 * driver is allowed to advertise a theoretical limit that it can reach in
2933 * some cases, but may not always reach.
2936 /* assign these fields before you register the wiphy */
2938 /* permanent MAC address(es) */
2939 u8 perm_addr
[ETH_ALEN
];
2940 u8 addr_mask
[ETH_ALEN
];
2942 struct mac_address
*addresses
;
2944 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2946 const struct ieee80211_iface_combination
*iface_combinations
;
2947 int n_iface_combinations
;
2948 u16 software_iftypes
;
2952 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2953 u16 interface_modes
;
2955 u16 max_acl_mac_addrs
;
2957 u32 flags
, regulatory_flags
, features
;
2961 enum cfg80211_signal_type signal_type
;
2965 u8 max_sched_scan_ssids
;
2967 u16 max_scan_ie_len
;
2968 u16 max_sched_scan_ie_len
;
2970 int n_cipher_suites
;
2971 const u32
*cipher_suites
;
2979 char fw_version
[ETHTOOL_FWVERS_LEN
];
2983 const struct wiphy_wowlan_support
*wowlan
;
2984 struct cfg80211_wowlan
*wowlan_config
;
2987 u16 max_remain_on_channel_duration
;
2991 u32 available_antennas_tx
;
2992 u32 available_antennas_rx
;
2995 * Bitmap of supported protocols for probe response offloading
2996 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2997 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2999 u32 probe_resp_offload
;
3001 const u8
*extended_capabilities
, *extended_capabilities_mask
;
3002 u8 extended_capabilities_len
;
3004 /* If multiple wiphys are registered and you're handed e.g.
3005 * a regular netdev with assigned ieee80211_ptr, you won't
3006 * know whether it points to a wiphy your driver has registered
3007 * or not. Assign this to something global to your driver to
3008 * help determine whether you own this wiphy or not. */
3011 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
3013 /* Lets us get back the wiphy on the callback */
3014 void (*reg_notifier
)(struct wiphy
*wiphy
,
3015 struct regulatory_request
*request
);
3017 /* fields below are read-only, assigned by cfg80211 */
3019 const struct ieee80211_regdomain __rcu
*regd
;
3021 /* the item in /sys/class/ieee80211/ points to this,
3022 * you need use set_wiphy_dev() (see below) */
3025 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3028 /* dir in debugfs: ieee80211/<wiphyname> */
3029 struct dentry
*debugfsdir
;
3031 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
3032 const struct ieee80211_vht_cap
*vht_capa_mod_mask
;
3034 #ifdef CONFIG_NET_NS
3035 /* the network namespace this phy lives in currently */
3039 #ifdef CONFIG_CFG80211_WEXT
3040 const struct iw_handler_def
*wext
;
3043 const struct wiphy_coalesce_support
*coalesce
;
3045 const struct wiphy_vendor_command
*vendor_commands
;
3046 const struct nl80211_vendor_cmd_info
*vendor_events
;
3047 int n_vendor_commands
, n_vendor_events
;
3049 u16 max_ap_assoc_sta
;
3051 char priv
[0] __aligned(NETDEV_ALIGN
);
3054 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
3056 return read_pnet(&wiphy
->_net
);
3059 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
3061 write_pnet(&wiphy
->_net
, net
);
3065 * wiphy_priv - return priv from wiphy
3067 * @wiphy: the wiphy whose priv pointer to return
3068 * Return: The priv of @wiphy.
3070 static inline void *wiphy_priv(struct wiphy
*wiphy
)
3073 return &wiphy
->priv
;
3077 * priv_to_wiphy - return the wiphy containing the priv
3079 * @priv: a pointer previously returned by wiphy_priv
3080 * Return: The wiphy of @priv.
3082 static inline struct wiphy
*priv_to_wiphy(void *priv
)
3085 return container_of(priv
, struct wiphy
, priv
);
3089 * set_wiphy_dev - set device pointer for wiphy
3091 * @wiphy: The wiphy whose device to bind
3092 * @dev: The device to parent it to
3094 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
3096 wiphy
->dev
.parent
= dev
;
3100 * wiphy_dev - get wiphy dev pointer
3102 * @wiphy: The wiphy whose device struct to look up
3103 * Return: The dev of @wiphy.
3105 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
3107 return wiphy
->dev
.parent
;
3111 * wiphy_name - get wiphy name
3113 * @wiphy: The wiphy whose name to return
3114 * Return: The name of @wiphy.
3116 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
3118 return dev_name(&wiphy
->dev
);
3122 * wiphy_new - create a new wiphy for use with cfg80211
3124 * @ops: The configuration operations for this device
3125 * @sizeof_priv: The size of the private area to allocate
3127 * Create a new wiphy and associate the given operations with it.
3128 * @sizeof_priv bytes are allocated for private use.
3130 * Return: A pointer to the new wiphy. This pointer must be
3131 * assigned to each netdev's ieee80211_ptr for proper operation.
3133 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
3136 * wiphy_register - register a wiphy with cfg80211
3138 * @wiphy: The wiphy to register.
3140 * Return: A non-negative wiphy index or a negative error code.
3142 int wiphy_register(struct wiphy
*wiphy
);
3145 * wiphy_unregister - deregister a wiphy from cfg80211
3147 * @wiphy: The wiphy to unregister.
3149 * After this call, no more requests can be made with this priv
3150 * pointer, but the call may sleep to wait for an outstanding
3151 * request that is being handled.
3153 void wiphy_unregister(struct wiphy
*wiphy
);
3156 * wiphy_free - free wiphy
3158 * @wiphy: The wiphy to free
3160 void wiphy_free(struct wiphy
*wiphy
);
3162 /* internal structs */
3163 struct cfg80211_conn
;
3164 struct cfg80211_internal_bss
;
3165 struct cfg80211_cached_keys
;
3168 * struct wireless_dev - wireless device state
3170 * For netdevs, this structure must be allocated by the driver
3171 * that uses the ieee80211_ptr field in struct net_device (this
3172 * is intentional so it can be allocated along with the netdev.)
3173 * It need not be registered then as netdev registration will
3174 * be intercepted by cfg80211 to see the new wireless device.
3176 * For non-netdev uses, it must also be allocated by the driver
3177 * in response to the cfg80211 callbacks that require it, as
3178 * there's no netdev registration in that case it may not be
3179 * allocated outside of callback operations that return it.
3181 * @wiphy: pointer to hardware description
3182 * @iftype: interface type
3183 * @list: (private) Used to collect the interfaces
3184 * @netdev: (private) Used to reference back to the netdev, may be %NULL
3185 * @identifier: (private) Identifier used in nl80211 to identify this
3186 * wireless device if it has no netdev
3187 * @current_bss: (private) Used by the internal configuration code
3188 * @chandef: (private) Used by the internal configuration code to track
3189 * the user-set channel definition.
3190 * @preset_chandef: (private) Used by the internal configuration code to
3191 * track the channel to be used for AP later
3192 * @bssid: (private) Used by the internal configuration code
3193 * @ssid: (private) Used by the internal configuration code
3194 * @ssid_len: (private) Used by the internal configuration code
3195 * @mesh_id_len: (private) Used by the internal configuration code
3196 * @mesh_id_up_len: (private) Used by the internal configuration code
3197 * @wext: (private) Used by the internal wireless extensions compat code
3198 * @use_4addr: indicates 4addr mode is used on this interface, must be
3199 * set by driver (if supported) on add_interface BEFORE registering the
3200 * netdev and may otherwise be used by driver read-only, will be update
3201 * by cfg80211 on change_interface
3202 * @mgmt_registrations: list of registrations for management frames
3203 * @mgmt_registrations_lock: lock for the list
3204 * @mtx: mutex used to lock data in this struct, may be used by drivers
3205 * and some API functions require it held
3206 * @beacon_interval: beacon interval used on this device for transmitting
3207 * beacons, 0 when not valid
3208 * @address: The address for this device, valid only if @netdev is %NULL
3209 * @p2p_started: true if this is a P2P Device that has been started
3210 * @cac_started: true if DFS channel availability check has been started
3211 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
3212 * @cac_time_ms: CAC time in ms
3213 * @ps: powersave mode is enabled
3214 * @ps_timeout: dynamic powersave timeout
3215 * @ap_unexpected_nlportid: (private) netlink port ID of application
3216 * registered for unexpected class 3 frames (AP mode)
3217 * @conn: (private) cfg80211 software SME connection state machine data
3218 * @connect_keys: (private) keys to set after connection is established
3219 * @ibss_fixed: (private) IBSS is using fixed BSSID
3220 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
3221 * @event_list: (private) list for internal event processing
3222 * @event_lock: (private) lock for event list
3223 * @owner_nlportid: (private) owner socket port ID
3225 struct wireless_dev
{
3226 struct wiphy
*wiphy
;
3227 enum nl80211_iftype iftype
;
3229 /* the remainder of this struct should be private to cfg80211 */
3230 struct list_head list
;
3231 struct net_device
*netdev
;
3235 struct list_head mgmt_registrations
;
3236 spinlock_t mgmt_registrations_lock
;
3240 bool use_4addr
, p2p_started
;
3242 u8 address
[ETH_ALEN
] __aligned(sizeof(u16
));
3244 /* currently used for IBSS and SME - might be rearranged later */
3245 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3246 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
3247 struct cfg80211_conn
*conn
;
3248 struct cfg80211_cached_keys
*connect_keys
;
3250 struct list_head event_list
;
3251 spinlock_t event_lock
;
3253 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
3254 struct cfg80211_chan_def preset_chandef
;
3255 struct cfg80211_chan_def chandef
;
3258 bool ibss_dfs_possible
;
3263 int beacon_interval
;
3265 u32 ap_unexpected_nlportid
;
3268 unsigned long cac_start_time
;
3269 unsigned int cac_time_ms
;
3273 #ifdef CONFIG_CFG80211_WEXT
3276 struct cfg80211_ibss_params ibss
;
3277 struct cfg80211_connect_params connect
;
3278 struct cfg80211_cached_keys
*keys
;
3281 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
3282 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3283 s8 default_key
, default_mgmt_key
;
3284 bool prev_bssid_valid
;
3289 static inline u8
*wdev_address(struct wireless_dev
*wdev
)
3292 return wdev
->netdev
->dev_addr
;
3293 return wdev
->address
;
3297 * wdev_priv - return wiphy priv from wireless_dev
3299 * @wdev: The wireless device whose wiphy's priv pointer to return
3300 * Return: The wiphy priv of @wdev.
3302 static inline void *wdev_priv(struct wireless_dev
*wdev
)
3305 return wiphy_priv(wdev
->wiphy
);
3309 * DOC: Utility functions
3311 * cfg80211 offers a number of utility functions that can be useful.
3315 * ieee80211_channel_to_frequency - convert channel number to frequency
3316 * @chan: channel number
3317 * @band: band, necessary due to channel number overlap
3318 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
3320 int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
3323 * ieee80211_frequency_to_channel - convert frequency to channel number
3324 * @freq: center frequency
3325 * Return: The corresponding channel, or 0 if the conversion failed.
3327 int ieee80211_frequency_to_channel(int freq
);
3330 * Name indirection necessary because the ieee80211 code also has
3331 * a function named "ieee80211_get_channel", so if you include
3332 * cfg80211's header file you get cfg80211's version, if you try
3333 * to include both header files you'll (rightfully!) get a symbol
3336 struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
3339 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
3340 * @wiphy: the struct wiphy to get the channel for
3341 * @freq: the center frequency of the channel
3342 * Return: The channel struct from @wiphy at @freq.
3344 static inline struct ieee80211_channel
*
3345 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
3347 return __ieee80211_get_channel(wiphy
, freq
);
3351 * ieee80211_get_response_rate - get basic rate for a given rate
3353 * @sband: the band to look for rates in
3354 * @basic_rates: bitmap of basic rates
3355 * @bitrate: the bitrate for which to find the basic rate
3357 * Return: The basic rate corresponding to a given bitrate, that
3358 * is the next lower bitrate contained in the basic rate map,
3359 * which is, for this function, given as a bitmap of indices of
3360 * rates in the band's bitrate table.
3362 struct ieee80211_rate
*
3363 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
3364 u32 basic_rates
, int bitrate
);
3367 * ieee80211_mandatory_rates - get mandatory rates for a given band
3368 * @sband: the band to look for rates in
3369 * @scan_width: width of the control channel
3371 * This function returns a bitmap of the mandatory rates for the given
3372 * band, bits are set according to the rate position in the bitrates array.
3374 u32
ieee80211_mandatory_rates(struct ieee80211_supported_band
*sband
,
3375 enum nl80211_bss_scan_width scan_width
);
3378 * Radiotap parsing functions -- for controlled injection support
3380 * Implemented in net/wireless/radiotap.c
3381 * Documentation in Documentation/networking/radiotap-headers.txt
3384 struct radiotap_align_size
{
3385 uint8_t align
:4, size
:4;
3388 struct ieee80211_radiotap_namespace
{
3389 const struct radiotap_align_size
*align_size
;
3395 struct ieee80211_radiotap_vendor_namespaces
{
3396 const struct ieee80211_radiotap_namespace
*ns
;
3401 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3402 * @this_arg_index: index of current arg, valid after each successful call
3403 * to ieee80211_radiotap_iterator_next()
3404 * @this_arg: pointer to current radiotap arg; it is valid after each
3405 * call to ieee80211_radiotap_iterator_next() but also after
3406 * ieee80211_radiotap_iterator_init() where it will point to
3407 * the beginning of the actual data portion
3408 * @this_arg_size: length of the current arg, for convenience
3409 * @current_namespace: pointer to the current namespace definition
3410 * (or internally %NULL if the current namespace is unknown)
3411 * @is_radiotap_ns: indicates whether the current namespace is the default
3412 * radiotap namespace or not
3414 * @_rtheader: pointer to the radiotap header we are walking through
3415 * @_max_length: length of radiotap header in cpu byte ordering
3416 * @_arg_index: next argument index
3417 * @_arg: next argument pointer
3418 * @_next_bitmap: internal pointer to next present u32
3419 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3420 * @_vns: vendor namespace definitions
3421 * @_next_ns_data: beginning of the next namespace's data
3422 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
3425 * Describes the radiotap parser state. Fields prefixed with an underscore
3426 * must not be used by users of the parser, only by the parser internally.
3429 struct ieee80211_radiotap_iterator
{
3430 struct ieee80211_radiotap_header
*_rtheader
;
3431 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
3432 const struct ieee80211_radiotap_namespace
*current_namespace
;
3434 unsigned char *_arg
, *_next_ns_data
;
3435 __le32
*_next_bitmap
;
3437 unsigned char *this_arg
;
3445 uint32_t _bitmap_shifter
;
3450 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator
*iterator
,
3451 struct ieee80211_radiotap_header
*radiotap_header
,
3453 const struct ieee80211_radiotap_vendor_namespaces
*vns
);
3456 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator
*iterator
);
3459 extern const unsigned char rfc1042_header
[6];
3460 extern const unsigned char bridge_tunnel_header
[6];
3463 * ieee80211_get_hdrlen_from_skb - get header length from data
3467 * Given an skb with a raw 802.11 header at the data pointer this function
3468 * returns the 802.11 header length.
3470 * Return: The 802.11 header length in bytes (not including encryption
3471 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
3474 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
3477 * ieee80211_hdrlen - get header length in bytes from frame control
3478 * @fc: frame control field in little-endian format
3479 * Return: The header length in bytes.
3481 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
3484 * ieee80211_get_mesh_hdrlen - get mesh extension header length
3485 * @meshhdr: the mesh extension header, only the flags field
3486 * (first byte) will be accessed
3487 * Return: The length of the extension header, which is always at
3488 * least 6 bytes and at most 18 if address 5 and 6 are present.
3490 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr
*meshhdr
);
3493 * DOC: Data path helpers
3495 * In addition to generic utilities, cfg80211 also offers
3496 * functions that help implement the data path for devices
3497 * that do not do the 802.11/802.3 conversion on the device.
3501 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
3502 * @skb: the 802.11 data frame
3503 * @addr: the device MAC address
3504 * @iftype: the virtual interface type
3505 * Return: 0 on success. Non-zero on error.
3507 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
3508 enum nl80211_iftype iftype
);
3511 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
3512 * @skb: the 802.3 frame
3513 * @addr: the device MAC address
3514 * @iftype: the virtual interface type
3515 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
3516 * @qos: build 802.11 QoS data frame
3517 * Return: 0 on success, or a negative error code.
3519 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
3520 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
3523 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
3525 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
3526 * 802.3 frames. The @list will be empty if the decode fails. The
3527 * @skb is consumed after the function returns.
3529 * @skb: The input IEEE 802.11n A-MSDU frame.
3530 * @list: The output list of 802.3 frames. It must be allocated and
3531 * initialized by by the caller.
3532 * @addr: The device MAC address.
3533 * @iftype: The device interface type.
3534 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
3535 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
3537 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
3538 const u8
*addr
, enum nl80211_iftype iftype
,
3539 const unsigned int extra_headroom
,
3540 bool has_80211_header
);
3543 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
3544 * @skb: the data frame
3545 * @qos_map: Interworking QoS mapping or %NULL if not in use
3546 * Return: The 802.1p/1d tag.
3548 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
,
3549 struct cfg80211_qos_map
*qos_map
);
3552 * cfg80211_find_ie - find information element in data
3555 * @ies: data consisting of IEs
3556 * @len: length of data
3558 * Return: %NULL if the element ID could not be found or if
3559 * the element is invalid (claims to be longer than the given
3560 * data), or a pointer to the first byte of the requested
3561 * element, that is the byte containing the element ID.
3563 * Note: There are no checks on the element length other than
3564 * having to fit into the given data.
3566 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
3569 * cfg80211_find_vendor_ie - find vendor specific information element in data
3572 * @oui_type: vendor-specific OUI type
3573 * @ies: data consisting of IEs
3574 * @len: length of data
3576 * Return: %NULL if the vendor specific element ID could not be found or if the
3577 * element is invalid (claims to be longer than the given data), or a pointer to
3578 * the first byte of the requested element, that is the byte containing the
3581 * Note: There are no checks on the element length other than having to fit into
3584 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
3585 const u8
*ies
, int len
);
3588 * DOC: Regulatory enforcement infrastructure
3594 * regulatory_hint - driver hint to the wireless core a regulatory domain
3595 * @wiphy: the wireless device giving the hint (used only for reporting
3597 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3598 * should be in. If @rd is set this should be NULL. Note that if you
3599 * set this to NULL you should still set rd->alpha2 to some accepted
3602 * Wireless drivers can use this function to hint to the wireless core
3603 * what it believes should be the current regulatory domain by
3604 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3605 * domain should be in or by providing a completely build regulatory domain.
3606 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3607 * for a regulatory domain structure for the respective country.
3609 * The wiphy must have been registered to cfg80211 prior to this call.
3610 * For cfg80211 drivers this means you must first use wiphy_register(),
3611 * for mac80211 drivers you must first use ieee80211_register_hw().
3613 * Drivers should check the return value, its possible you can get
3616 * Return: 0 on success. -ENOMEM.
3618 int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
3621 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3622 * @wiphy: the wireless device we want to process the regulatory domain on
3623 * @regd: the custom regulatory domain to use for this wiphy
3625 * Drivers can sometimes have custom regulatory domains which do not apply
3626 * to a specific country. Drivers can use this to apply such custom regulatory
3627 * domains. This routine must be called prior to wiphy registration. The
3628 * custom regulatory domain will be trusted completely and as such previous
3629 * default channel settings will be disregarded. If no rule is found for a
3630 * channel on the regulatory domain the channel will be disabled.
3631 * Drivers using this for a wiphy should also set the wiphy flag
3632 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
3633 * that called this helper.
3635 void wiphy_apply_custom_regulatory(struct wiphy
*wiphy
,
3636 const struct ieee80211_regdomain
*regd
);
3639 * freq_reg_info - get regulatory information for the given frequency
3640 * @wiphy: the wiphy for which we want to process this rule for
3641 * @center_freq: Frequency in KHz for which we want regulatory information for
3643 * Use this function to get the regulatory rule for a specific frequency on
3644 * a given wireless device. If the device has a specific regulatory domain
3645 * it wants to follow we respect that unless a country IE has been received
3646 * and processed already.
3648 * Return: A valid pointer, or, when an error occurs, for example if no rule
3649 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3650 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3651 * value will be -ERANGE if we determine the given center_freq does not even
3652 * have a regulatory rule for a frequency range in the center_freq's band.
3653 * See freq_in_rule_band() for our current definition of a band -- this is
3654 * purely subjective and right now it's 802.11 specific.
3656 const struct ieee80211_reg_rule
*freq_reg_info(struct wiphy
*wiphy
,
3660 * reg_initiator_name - map regulatory request initiator enum to name
3661 * @initiator: the regulatory request initiator
3663 * You can use this to map the regulatory request initiator enum to a
3664 * proper string representation.
3666 const char *reg_initiator_name(enum nl80211_reg_initiator initiator
);
3669 * callbacks for asynchronous cfg80211 methods, notification
3670 * functions and BSS handling helpers
3674 * cfg80211_scan_done - notify that scan finished
3676 * @request: the corresponding scan request
3677 * @aborted: set to true if the scan was aborted for any reason,
3678 * userspace will be notified of that
3680 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
3683 * cfg80211_sched_scan_results - notify that new scan results are available
3685 * @wiphy: the wiphy which got scheduled scan results
3687 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
3690 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3692 * @wiphy: the wiphy on which the scheduled scan stopped
3694 * The driver can call this function to inform cfg80211 that the
3695 * scheduled scan had to be stopped, for whatever reason. The driver
3696 * is then called back via the sched_scan_stop operation when done.
3698 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
3701 * cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame
3703 * @wiphy: the wiphy reporting the BSS
3704 * @rx_channel: The channel the frame was received on
3705 * @scan_width: width of the control channel
3706 * @mgmt: the management frame (probe response or beacon)
3707 * @len: length of the management frame
3708 * @signal: the signal strength, type depends on the wiphy's signal_type
3709 * @gfp: context flags
3711 * This informs cfg80211 that BSS information was found and
3712 * the BSS should be updated/added.
3714 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3715 * Or %NULL on error.
3717 struct cfg80211_bss
* __must_check
3718 cfg80211_inform_bss_width_frame(struct wiphy
*wiphy
,
3719 struct ieee80211_channel
*rx_channel
,
3720 enum nl80211_bss_scan_width scan_width
,
3721 struct ieee80211_mgmt
*mgmt
, size_t len
,
3722 s32 signal
, gfp_t gfp
);
3724 static inline struct cfg80211_bss
* __must_check
3725 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
3726 struct ieee80211_channel
*rx_channel
,
3727 struct ieee80211_mgmt
*mgmt
, size_t len
,
3728 s32 signal
, gfp_t gfp
)
3730 return cfg80211_inform_bss_width_frame(wiphy
, rx_channel
,
3731 NL80211_BSS_CHAN_WIDTH_20
,
3732 mgmt
, len
, signal
, gfp
);
3736 * cfg80211_inform_bss - inform cfg80211 of a new BSS
3738 * @wiphy: the wiphy reporting the BSS
3739 * @rx_channel: The channel the frame was received on
3740 * @scan_width: width of the control channel
3741 * @bssid: the BSSID of the BSS
3742 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3743 * @capability: the capability field sent by the peer
3744 * @beacon_interval: the beacon interval announced by the peer
3745 * @ie: additional IEs sent by the peer
3746 * @ielen: length of the additional IEs
3747 * @signal: the signal strength, type depends on the wiphy's signal_type
3748 * @gfp: context flags
3750 * This informs cfg80211 that BSS information was found and
3751 * the BSS should be updated/added.
3753 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3754 * Or %NULL on error.
3756 struct cfg80211_bss
* __must_check
3757 cfg80211_inform_bss_width(struct wiphy
*wiphy
,
3758 struct ieee80211_channel
*rx_channel
,
3759 enum nl80211_bss_scan_width scan_width
,
3760 const u8
*bssid
, u64 tsf
, u16 capability
,
3761 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3762 s32 signal
, gfp_t gfp
);
3764 static inline struct cfg80211_bss
* __must_check
3765 cfg80211_inform_bss(struct wiphy
*wiphy
,
3766 struct ieee80211_channel
*rx_channel
,
3767 const u8
*bssid
, u64 tsf
, u16 capability
,
3768 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3769 s32 signal
, gfp_t gfp
)
3771 return cfg80211_inform_bss_width(wiphy
, rx_channel
,
3772 NL80211_BSS_CHAN_WIDTH_20
,
3773 bssid
, tsf
, capability
,
3774 beacon_interval
, ie
, ielen
, signal
,
3778 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
3779 struct ieee80211_channel
*channel
,
3781 const u8
*ssid
, size_t ssid_len
,
3782 u16 capa_mask
, u16 capa_val
);
3783 static inline struct cfg80211_bss
*
3784 cfg80211_get_ibss(struct wiphy
*wiphy
,
3785 struct ieee80211_channel
*channel
,
3786 const u8
*ssid
, size_t ssid_len
)
3788 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
3789 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
3793 * cfg80211_ref_bss - reference BSS struct
3794 * @wiphy: the wiphy this BSS struct belongs to
3795 * @bss: the BSS struct to reference
3797 * Increments the refcount of the given BSS struct.
3799 void cfg80211_ref_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3802 * cfg80211_put_bss - unref BSS struct
3803 * @wiphy: the wiphy this BSS struct belongs to
3804 * @bss: the BSS struct
3806 * Decrements the refcount of the given BSS struct.
3808 void cfg80211_put_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3811 * cfg80211_unlink_bss - unlink BSS from internal data structures
3813 * @bss: the bss to remove
3815 * This function removes the given BSS from the internal data structures
3816 * thereby making it no longer show up in scan results etc. Use this
3817 * function when you detect a BSS is gone. Normally BSSes will also time
3818 * out, so it is not necessary to use this function at all.
3820 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3822 static inline enum nl80211_bss_scan_width
3823 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def
*chandef
)
3825 switch (chandef
->width
) {
3826 case NL80211_CHAN_WIDTH_5
:
3827 return NL80211_BSS_CHAN_WIDTH_5
;
3828 case NL80211_CHAN_WIDTH_10
:
3829 return NL80211_BSS_CHAN_WIDTH_10
;
3831 return NL80211_BSS_CHAN_WIDTH_20
;
3836 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
3837 * @dev: network device
3838 * @buf: authentication frame (header + body)
3839 * @len: length of the frame data
3841 * This function is called whenever an authentication, disassociation or
3842 * deauthentication frame has been received and processed in station mode.
3843 * After being asked to authenticate via cfg80211_ops::auth() the driver must
3844 * call either this function or cfg80211_auth_timeout().
3845 * After being asked to associate via cfg80211_ops::assoc() the driver must
3846 * call either this function or cfg80211_auth_timeout().
3847 * While connected, the driver must calls this for received and processed
3848 * disassociation and deauthentication frames. If the frame couldn't be used
3849 * because it was unprotected, the driver must call the function
3850 * cfg80211_rx_unprot_mlme_mgmt() instead.
3852 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3854 void cfg80211_rx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3857 * cfg80211_auth_timeout - notification of timed out authentication
3858 * @dev: network device
3859 * @addr: The MAC address of the device with which the authentication timed out
3861 * This function may sleep. The caller must hold the corresponding wdev's
3864 void cfg80211_auth_timeout(struct net_device
*dev
, const u8
*addr
);
3867 * cfg80211_rx_assoc_resp - notification of processed association response
3868 * @dev: network device
3869 * @bss: the BSS that association was requested with, ownership of the pointer
3870 * moves to cfg80211 in this call
3871 * @buf: authentication frame (header + body)
3872 * @len: length of the frame data
3874 * After being asked to associate via cfg80211_ops::assoc() the driver must
3875 * call either this function or cfg80211_auth_timeout().
3877 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3879 void cfg80211_rx_assoc_resp(struct net_device
*dev
,
3880 struct cfg80211_bss
*bss
,
3881 const u8
*buf
, size_t len
);
3884 * cfg80211_assoc_timeout - notification of timed out association
3885 * @dev: network device
3886 * @bss: The BSS entry with which association timed out.
3888 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3890 void cfg80211_assoc_timeout(struct net_device
*dev
, struct cfg80211_bss
*bss
);
3893 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
3894 * @dev: network device
3895 * @buf: 802.11 frame (header + body)
3896 * @len: length of the frame data
3898 * This function is called whenever deauthentication has been processed in
3899 * station mode. This includes both received deauthentication frames and
3900 * locally generated ones. This function may sleep. The caller must hold the
3901 * corresponding wdev's mutex.
3903 void cfg80211_tx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3906 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
3907 * @dev: network device
3908 * @buf: deauthentication frame (header + body)
3909 * @len: length of the frame data
3911 * This function is called whenever a received deauthentication or dissassoc
3912 * frame has been dropped in station mode because of MFP being used but the
3913 * frame was not protected. This function may sleep.
3915 void cfg80211_rx_unprot_mlme_mgmt(struct net_device
*dev
,
3916 const u8
*buf
, size_t len
);
3919 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3920 * @dev: network device
3921 * @addr: The source MAC address of the frame
3922 * @key_type: The key type that the received frame used
3923 * @key_id: Key identifier (0..3). Can be -1 if missing.
3924 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3925 * @gfp: allocation flags
3927 * This function is called whenever the local MAC detects a MIC failure in a
3928 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3931 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
3932 enum nl80211_key_type key_type
, int key_id
,
3933 const u8
*tsc
, gfp_t gfp
);
3936 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3938 * @dev: network device
3939 * @bssid: the BSSID of the IBSS joined
3940 * @channel: the channel of the IBSS joined
3941 * @gfp: allocation flags
3943 * This function notifies cfg80211 that the device joined an IBSS or
3944 * switched to a different BSSID. Before this function can be called,
3945 * either a beacon has to have been received from the IBSS, or one of
3946 * the cfg80211_inform_bss{,_frame} functions must have been called
3947 * with the locally generated beacon -- this guarantees that there is
3948 * always a scan result for this IBSS. cfg80211 will handle the rest.
3950 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
,
3951 struct ieee80211_channel
*channel
, gfp_t gfp
);
3954 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3956 * @dev: network device
3957 * @macaddr: the MAC address of the new candidate
3958 * @ie: information elements advertised by the peer candidate
3959 * @ie_len: lenght of the information elements buffer
3960 * @gfp: allocation flags
3962 * This function notifies cfg80211 that the mesh peer candidate has been
3963 * detected, most likely via a beacon or, less likely, via a probe response.
3964 * cfg80211 then sends a notification to userspace.
3966 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3967 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3970 * DOC: RFkill integration
3972 * RFkill integration in cfg80211 is almost invisible to drivers,
3973 * as cfg80211 automatically registers an rfkill instance for each
3974 * wireless device it knows about. Soft kill is also translated
3975 * into disconnecting and turning all interfaces off, drivers are
3976 * expected to turn off the device when all interfaces are down.
3978 * However, devices may have a hard RFkill line, in which case they
3979 * also need to interact with the rfkill subsystem, via cfg80211.
3980 * They can do this with a few helper functions documented here.
3984 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3986 * @blocked: block status
3988 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
3991 * wiphy_rfkill_start_polling - start polling rfkill
3994 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
3997 * wiphy_rfkill_stop_polling - stop polling rfkill
4000 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
4003 * DOC: Vendor commands
4005 * Occasionally, there are special protocol or firmware features that
4006 * can't be implemented very openly. For this and similar cases, the
4007 * vendor command functionality allows implementing the features with
4008 * (typically closed-source) userspace and firmware, using nl80211 as
4009 * the configuration mechanism.
4011 * A driver supporting vendor commands must register them as an array
4012 * in struct wiphy, with handlers for each one, each command has an
4013 * OUI and sub command ID to identify it.
4015 * Note that this feature should not be (ab)used to implement protocol
4016 * features that could openly be shared across drivers. In particular,
4017 * it must never be required to use vendor commands to implement any
4018 * "normal" functionality that higher-level userspace like connection
4019 * managers etc. need.
4022 struct sk_buff
*__cfg80211_alloc_reply_skb(struct wiphy
*wiphy
,
4023 enum nl80211_commands cmd
,
4024 enum nl80211_attrs attr
,
4027 struct sk_buff
*__cfg80211_alloc_event_skb(struct wiphy
*wiphy
,
4028 enum nl80211_commands cmd
,
4029 enum nl80211_attrs attr
,
4030 int vendor_event_idx
,
4031 int approxlen
, gfp_t gfp
);
4033 void __cfg80211_send_event_skb(struct sk_buff
*skb
, gfp_t gfp
);
4036 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
4038 * @approxlen: an upper bound of the length of the data that will
4039 * be put into the skb
4041 * This function allocates and pre-fills an skb for a reply to
4042 * a vendor command. Since it is intended for a reply, calling
4043 * it outside of a vendor command's doit() operation is invalid.
4045 * The returned skb is pre-filled with some identifying data in
4046 * a way that any data that is put into the skb (with skb_put(),
4047 * nla_put() or similar) will end up being within the
4048 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
4049 * with the skb is adding data for the corresponding userspace tool
4050 * which can then read that data out of the vendor data attribute.
4051 * You must not modify the skb in any other way.
4053 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
4054 * its error code as the result of the doit() operation.
4056 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4058 static inline struct sk_buff
*
4059 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4061 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_VENDOR
,
4062 NL80211_ATTR_VENDOR_DATA
, approxlen
);
4066 * cfg80211_vendor_cmd_reply - send the reply skb
4067 * @skb: The skb, must have been allocated with
4068 * cfg80211_vendor_cmd_alloc_reply_skb()
4070 * Since calling this function will usually be the last thing
4071 * before returning from the vendor command doit() you should
4072 * return the error code. Note that this function consumes the
4073 * skb regardless of the return value.
4075 * Return: An error code or 0 on success.
4077 int cfg80211_vendor_cmd_reply(struct sk_buff
*skb
);
4080 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
4082 * @event_idx: index of the vendor event in the wiphy's vendor_events
4083 * @approxlen: an upper bound of the length of the data that will
4084 * be put into the skb
4085 * @gfp: allocation flags
4087 * This function allocates and pre-fills an skb for an event on the
4088 * vendor-specific multicast group.
4090 * When done filling the skb, call cfg80211_vendor_event() with the
4091 * skb to send the event.
4093 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4095 static inline struct sk_buff
*
4096 cfg80211_vendor_event_alloc(struct wiphy
*wiphy
, int approxlen
,
4097 int event_idx
, gfp_t gfp
)
4099 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_VENDOR
,
4100 NL80211_ATTR_VENDOR_DATA
,
4101 event_idx
, approxlen
, gfp
);
4105 * cfg80211_vendor_event - send the event
4106 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
4107 * @gfp: allocation flags
4109 * This function sends the given @skb, which must have been allocated
4110 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
4112 static inline void cfg80211_vendor_event(struct sk_buff
*skb
, gfp_t gfp
)
4114 __cfg80211_send_event_skb(skb
, gfp
);
4117 #ifdef CONFIG_NL80211_TESTMODE
4121 * Test mode is a set of utility functions to allow drivers to
4122 * interact with driver-specific tools to aid, for instance,
4123 * factory programming.
4125 * This chapter describes how drivers interact with it, for more
4126 * information see the nl80211 book's chapter on it.
4130 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
4132 * @approxlen: an upper bound of the length of the data that will
4133 * be put into the skb
4135 * This function allocates and pre-fills an skb for a reply to
4136 * the testmode command. Since it is intended for a reply, calling
4137 * it outside of the @testmode_cmd operation is invalid.
4139 * The returned skb is pre-filled with the wiphy index and set up in
4140 * a way that any data that is put into the skb (with skb_put(),
4141 * nla_put() or similar) will end up being within the
4142 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
4143 * with the skb is adding data for the corresponding userspace tool
4144 * which can then read that data out of the testdata attribute. You
4145 * must not modify the skb in any other way.
4147 * When done, call cfg80211_testmode_reply() with the skb and return
4148 * its error code as the result of the @testmode_cmd operation.
4150 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4152 static inline struct sk_buff
*
4153 cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4155 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_TESTMODE
,
4156 NL80211_ATTR_TESTDATA
, approxlen
);
4160 * cfg80211_testmode_reply - send the reply skb
4161 * @skb: The skb, must have been allocated with
4162 * cfg80211_testmode_alloc_reply_skb()
4164 * Since calling this function will usually be the last thing
4165 * before returning from the @testmode_cmd you should return
4166 * the error code. Note that this function consumes the skb
4167 * regardless of the return value.
4169 * Return: An error code or 0 on success.
4171 static inline int cfg80211_testmode_reply(struct sk_buff
*skb
)
4173 return cfg80211_vendor_cmd_reply(skb
);
4177 * cfg80211_testmode_alloc_event_skb - allocate testmode event
4179 * @approxlen: an upper bound of the length of the data that will
4180 * be put into the skb
4181 * @gfp: allocation flags
4183 * This function allocates and pre-fills an skb for an event on the
4184 * testmode multicast group.
4186 * The returned skb is set up in the same way as with
4187 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
4188 * there, you should simply add data to it that will then end up in the
4189 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
4192 * When done filling the skb, call cfg80211_testmode_event() with the
4193 * skb to send the event.
4195 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4197 static inline struct sk_buff
*
4198 cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
, int approxlen
, gfp_t gfp
)
4200 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_TESTMODE
,
4201 NL80211_ATTR_TESTDATA
, -1,
4206 * cfg80211_testmode_event - send the event
4207 * @skb: The skb, must have been allocated with
4208 * cfg80211_testmode_alloc_event_skb()
4209 * @gfp: allocation flags
4211 * This function sends the given @skb, which must have been allocated
4212 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
4215 static inline void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
)
4217 __cfg80211_send_event_skb(skb
, gfp
);
4220 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
4221 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
4223 #define CFG80211_TESTMODE_CMD(cmd)
4224 #define CFG80211_TESTMODE_DUMP(cmd)
4228 * cfg80211_connect_result - notify cfg80211 of connection result
4230 * @dev: network device
4231 * @bssid: the BSSID of the AP
4232 * @req_ie: association request IEs (maybe be %NULL)
4233 * @req_ie_len: association request IEs length
4234 * @resp_ie: association response IEs (may be %NULL)
4235 * @resp_ie_len: assoc response IEs length
4236 * @status: status code, 0 for successful connection, use
4237 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4238 * the real status code for failures.
4239 * @gfp: allocation flags
4241 * It should be called by the underlying driver whenever connect() has
4244 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
4245 const u8
*req_ie
, size_t req_ie_len
,
4246 const u8
*resp_ie
, size_t resp_ie_len
,
4247 u16 status
, gfp_t gfp
);
4250 * cfg80211_roamed - notify cfg80211 of roaming
4252 * @dev: network device
4253 * @channel: the channel of the new AP
4254 * @bssid: the BSSID of the new AP
4255 * @req_ie: association request IEs (maybe be %NULL)
4256 * @req_ie_len: association request IEs length
4257 * @resp_ie: association response IEs (may be %NULL)
4258 * @resp_ie_len: assoc response IEs length
4259 * @gfp: allocation flags
4261 * It should be called by the underlying driver whenever it roamed
4262 * from one AP to another while connected.
4264 void cfg80211_roamed(struct net_device
*dev
,
4265 struct ieee80211_channel
*channel
,
4267 const u8
*req_ie
, size_t req_ie_len
,
4268 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4271 * cfg80211_roamed_bss - notify cfg80211 of roaming
4273 * @dev: network device
4274 * @bss: entry of bss to which STA got roamed
4275 * @req_ie: association request IEs (maybe be %NULL)
4276 * @req_ie_len: association request IEs length
4277 * @resp_ie: association response IEs (may be %NULL)
4278 * @resp_ie_len: assoc response IEs length
4279 * @gfp: allocation flags
4281 * This is just a wrapper to notify cfg80211 of roaming event with driver
4282 * passing bss to avoid a race in timeout of the bss entry. It should be
4283 * called by the underlying driver whenever it roamed from one AP to another
4284 * while connected. Drivers which have roaming implemented in firmware
4285 * may use this function to avoid a race in bss entry timeout where the bss
4286 * entry of the new AP is seen in the driver, but gets timed out by the time
4287 * it is accessed in __cfg80211_roamed() due to delay in scheduling
4288 * rdev->event_work. In case of any failures, the reference is released
4289 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
4290 * it will be released while diconneting from the current bss.
4292 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
4293 const u8
*req_ie
, size_t req_ie_len
,
4294 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4297 * cfg80211_disconnected - notify cfg80211 that connection was dropped
4299 * @dev: network device
4300 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
4301 * @ie_len: length of IEs
4302 * @reason: reason code for the disconnection, set it to 0 if unknown
4303 * @gfp: allocation flags
4305 * After it calls this function, the driver should enter an idle state
4306 * and not try to connect to any AP any more.
4308 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
4309 u8
*ie
, size_t ie_len
, gfp_t gfp
);
4312 * cfg80211_ready_on_channel - notification of remain_on_channel start
4313 * @wdev: wireless device
4314 * @cookie: the request cookie
4315 * @chan: The current channel (from remain_on_channel request)
4316 * @duration: Duration in milliseconds that the driver intents to remain on the
4318 * @gfp: allocation flags
4320 void cfg80211_ready_on_channel(struct wireless_dev
*wdev
, u64 cookie
,
4321 struct ieee80211_channel
*chan
,
4322 unsigned int duration
, gfp_t gfp
);
4325 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
4326 * @wdev: wireless device
4327 * @cookie: the request cookie
4328 * @chan: The current channel (from remain_on_channel request)
4329 * @gfp: allocation flags
4331 void cfg80211_remain_on_channel_expired(struct wireless_dev
*wdev
, u64 cookie
,
4332 struct ieee80211_channel
*chan
,
4337 * cfg80211_new_sta - notify userspace about station
4340 * @mac_addr: the station's address
4341 * @sinfo: the station information
4342 * @gfp: allocation flags
4344 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
4345 struct station_info
*sinfo
, gfp_t gfp
);
4348 * cfg80211_del_sta - notify userspace about deletion of a station
4351 * @mac_addr: the station's address
4352 * @gfp: allocation flags
4354 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
4357 * cfg80211_conn_failed - connection request failed notification
4360 * @mac_addr: the station's address
4361 * @reason: the reason for connection failure
4362 * @gfp: allocation flags
4364 * Whenever a station tries to connect to an AP and if the station
4365 * could not connect to the AP as the AP has rejected the connection
4366 * for some reasons, this function is called.
4368 * The reason for connection failure can be any of the value from
4369 * nl80211_connect_failed_reason enum
4371 void cfg80211_conn_failed(struct net_device
*dev
, const u8
*mac_addr
,
4372 enum nl80211_connect_failed_reason reason
,
4376 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
4377 * @wdev: wireless device receiving the frame
4378 * @freq: Frequency on which the frame was received in MHz
4379 * @sig_dbm: signal strength in mBm, or 0 if unknown
4380 * @buf: Management frame (header + body)
4381 * @len: length of the frame data
4382 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
4383 * @gfp: context flags
4385 * This function is called whenever an Action frame is received for a station
4386 * mode interface, but is not processed in kernel.
4388 * Return: %true if a user space application has registered for this frame.
4389 * For action frames, that makes it responsible for rejecting unrecognized
4390 * action frames; %false otherwise, in which case for action frames the
4391 * driver is responsible for rejecting the frame.
4393 bool cfg80211_rx_mgmt(struct wireless_dev
*wdev
, int freq
, int sig_dbm
,
4394 const u8
*buf
, size_t len
, u32 flags
, gfp_t gfp
);
4397 * cfg80211_mgmt_tx_status - notification of TX status for management frame
4398 * @wdev: wireless device receiving the frame
4399 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
4400 * @buf: Management frame (header + body)
4401 * @len: length of the frame data
4402 * @ack: Whether frame was acknowledged
4403 * @gfp: context flags
4405 * This function is called whenever a management frame was requested to be
4406 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
4407 * transmission attempt.
4409 void cfg80211_mgmt_tx_status(struct wireless_dev
*wdev
, u64 cookie
,
4410 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
4414 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
4415 * @dev: network device
4416 * @rssi_event: the triggered RSSI event
4417 * @gfp: context flags
4419 * This function is called when a configured connection quality monitoring
4420 * rssi threshold reached event occurs.
4422 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
4423 enum nl80211_cqm_rssi_threshold_event rssi_event
,
4427 * cfg80211_radar_event - radar detection event
4429 * @chandef: chandef for the current channel
4430 * @gfp: context flags
4432 * This function is called when a radar is detected on the current chanenl.
4434 void cfg80211_radar_event(struct wiphy
*wiphy
,
4435 struct cfg80211_chan_def
*chandef
, gfp_t gfp
);
4438 * cfg80211_cac_event - Channel availability check (CAC) event
4439 * @netdev: network device
4440 * @chandef: chandef for the current channel
4441 * @event: type of event
4442 * @gfp: context flags
4444 * This function is called when a Channel availability check (CAC) is finished
4445 * or aborted. This must be called to notify the completion of a CAC process,
4446 * also by full-MAC drivers.
4448 void cfg80211_cac_event(struct net_device
*netdev
,
4449 const struct cfg80211_chan_def
*chandef
,
4450 enum nl80211_radar_event event
, gfp_t gfp
);
4454 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
4455 * @dev: network device
4456 * @peer: peer's MAC address
4457 * @num_packets: how many packets were lost -- should be a fixed threshold
4458 * but probably no less than maybe 50, or maybe a throughput dependent
4459 * threshold (to account for temporary interference)
4460 * @gfp: context flags
4462 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
4463 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
4466 * cfg80211_cqm_txe_notify - TX error rate event
4467 * @dev: network device
4468 * @peer: peer's MAC address
4469 * @num_packets: how many packets were lost
4470 * @rate: % of packets which failed transmission
4471 * @intvl: interval (in s) over which the TX failure threshold was breached.
4472 * @gfp: context flags
4474 * Notify userspace when configured % TX failures over number of packets in a
4475 * given interval is exceeded.
4477 void cfg80211_cqm_txe_notify(struct net_device
*dev
, const u8
*peer
,
4478 u32 num_packets
, u32 rate
, u32 intvl
, gfp_t gfp
);
4481 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
4482 * @dev: network device
4483 * @bssid: BSSID of AP (to avoid races)
4484 * @replay_ctr: new replay counter
4485 * @gfp: allocation flags
4487 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
4488 const u8
*replay_ctr
, gfp_t gfp
);
4491 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
4492 * @dev: network device
4493 * @index: candidate index (the smaller the index, the higher the priority)
4494 * @bssid: BSSID of AP
4495 * @preauth: Whether AP advertises support for RSN pre-authentication
4496 * @gfp: allocation flags
4498 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
4499 const u8
*bssid
, bool preauth
, gfp_t gfp
);
4502 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
4503 * @dev: The device the frame matched to
4504 * @addr: the transmitter address
4505 * @gfp: context flags
4507 * This function is used in AP mode (only!) to inform userspace that
4508 * a spurious class 3 frame was received, to be able to deauth the
4510 * Return: %true if the frame was passed to userspace (or this failed
4511 * for a reason other than not having a subscription.)
4513 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
4514 const u8
*addr
, gfp_t gfp
);
4517 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
4518 * @dev: The device the frame matched to
4519 * @addr: the transmitter address
4520 * @gfp: context flags
4522 * This function is used in AP mode (only!) to inform userspace that
4523 * an associated station sent a 4addr frame but that wasn't expected.
4524 * It is allowed and desirable to send this event only once for each
4525 * station to avoid event flooding.
4526 * Return: %true if the frame was passed to userspace (or this failed
4527 * for a reason other than not having a subscription.)
4529 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
4530 const u8
*addr
, gfp_t gfp
);
4533 * cfg80211_probe_status - notify userspace about probe status
4534 * @dev: the device the probe was sent on
4535 * @addr: the address of the peer
4536 * @cookie: the cookie filled in @probe_client previously
4537 * @acked: indicates whether probe was acked or not
4538 * @gfp: allocation flags
4540 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
4541 u64 cookie
, bool acked
, gfp_t gfp
);
4544 * cfg80211_report_obss_beacon - report beacon from other APs
4545 * @wiphy: The wiphy that received the beacon
4547 * @len: length of the frame
4548 * @freq: frequency the frame was received on
4549 * @sig_dbm: signal strength in mBm, or 0 if unknown
4551 * Use this function to report to userspace when a beacon was
4552 * received. It is not useful to call this when there is no
4553 * netdev that is in AP/GO mode.
4555 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
4556 const u8
*frame
, size_t len
,
4557 int freq
, int sig_dbm
);
4560 * cfg80211_reg_can_beacon - check if beaconing is allowed
4562 * @chandef: the channel definition
4563 * @iftype: interface type
4565 * Return: %true if there is no secondary channel or the secondary channel(s)
4566 * can be used for beaconing (i.e. is not a radar channel etc.)
4568 bool cfg80211_reg_can_beacon(struct wiphy
*wiphy
,
4569 struct cfg80211_chan_def
*chandef
,
4570 enum nl80211_iftype iftype
);
4573 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
4574 * @dev: the device which switched channels
4575 * @chandef: the new channel definition
4577 * Caller must acquire wdev_lock, therefore must only be called from sleepable
4580 void cfg80211_ch_switch_notify(struct net_device
*dev
,
4581 struct cfg80211_chan_def
*chandef
);
4584 * ieee80211_operating_class_to_band - convert operating class to band
4586 * @operating_class: the operating class to convert
4587 * @band: band pointer to fill
4589 * Returns %true if the conversion was successful, %false otherwise.
4591 bool ieee80211_operating_class_to_band(u8 operating_class
,
4592 enum ieee80211_band
*band
);
4595 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
4596 * @dev: the device on which the operation is requested
4597 * @peer: the MAC address of the peer device
4598 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
4599 * NL80211_TDLS_TEARDOWN)
4600 * @reason_code: the reason code for teardown request
4601 * @gfp: allocation flags
4603 * This function is used to request userspace to perform TDLS operation that
4604 * requires knowledge of keys, i.e., link setup or teardown when the AP
4605 * connection uses encryption. This is optional mechanism for the driver to use
4606 * if it can automatically determine when a TDLS link could be useful (e.g.,
4607 * based on traffic and signal strength for a peer).
4609 void cfg80211_tdls_oper_request(struct net_device
*dev
, const u8
*peer
,
4610 enum nl80211_tdls_operation oper
,
4611 u16 reason_code
, gfp_t gfp
);
4614 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
4615 * @rate: given rate_info to calculate bitrate from
4617 * return 0 if MCS index >= 32
4619 u32
cfg80211_calculate_bitrate(struct rate_info
*rate
);
4622 * cfg80211_unregister_wdev - remove the given wdev
4623 * @wdev: struct wireless_dev to remove
4625 * Call this function only for wdevs that have no netdev assigned,
4626 * e.g. P2P Devices. It removes the device from the list so that
4627 * it can no longer be used. It is necessary to call this function
4628 * even when cfg80211 requests the removal of the interface by
4629 * calling the del_virtual_intf() callback. The function must also
4630 * be called when the driver wishes to unregister the wdev, e.g.
4631 * when the device is unbound from the driver.
4633 * Requires the RTNL to be held.
4635 void cfg80211_unregister_wdev(struct wireless_dev
*wdev
);
4638 * struct cfg80211_ft_event - FT Information Elements
4640 * @ies_len: length of the FT IE in bytes
4641 * @target_ap: target AP's MAC address
4643 * @ric_ies_len: length of the RIC IE in bytes
4645 struct cfg80211_ft_event_params
{
4648 const u8
*target_ap
;
4654 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
4655 * @netdev: network device
4656 * @ft_event: IE information
4658 void cfg80211_ft_event(struct net_device
*netdev
,
4659 struct cfg80211_ft_event_params
*ft_event
);
4662 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
4663 * @ies: the input IE buffer
4664 * @len: the input length
4665 * @attr: the attribute ID to find
4666 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
4667 * if the function is only called to get the needed buffer size
4668 * @bufsize: size of the output buffer
4670 * The function finds a given P2P attribute in the (vendor) IEs and
4671 * copies its contents to the given buffer.
4673 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
4674 * malformed or the attribute can't be found (respectively), or the
4675 * length of the found attribute (which can be zero).
4677 int cfg80211_get_p2p_attr(const u8
*ies
, unsigned int len
,
4678 enum ieee80211_p2p_attr_id attr
,
4679 u8
*buf
, unsigned int bufsize
);
4682 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
4683 * @wdev: the wireless device reporting the wakeup
4684 * @wakeup: the wakeup report
4685 * @gfp: allocation flags
4687 * This function reports that the given device woke up. If it
4688 * caused the wakeup, report the reason(s), otherwise you may
4689 * pass %NULL as the @wakeup parameter to advertise that something
4690 * else caused the wakeup.
4692 void cfg80211_report_wowlan_wakeup(struct wireless_dev
*wdev
,
4693 struct cfg80211_wowlan_wakeup
*wakeup
,
4697 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
4699 * @wdev: the wireless device for which critical protocol is stopped.
4700 * @gfp: allocation flags
4702 * This function can be called by the driver to indicate it has reverted
4703 * operation back to normal. One reason could be that the duration given
4704 * by .crit_proto_start() has expired.
4706 void cfg80211_crit_proto_stopped(struct wireless_dev
*wdev
, gfp_t gfp
);
4709 * ieee80211_get_num_supported_channels - get number of channels device has
4712 * Return: the number of channels supported by the device.
4714 unsigned int ieee80211_get_num_supported_channels(struct wiphy
*wiphy
);
4717 * cfg80211_check_combinations - check interface combinations
4720 * @num_different_channels: the number of different channels we want
4721 * to use for verification
4722 * @radar_detect: a bitmap where each bit corresponds to a channel
4723 * width where radar detection is needed, as in the definition of
4724 * &struct ieee80211_iface_combination.@radar_detect_widths
4725 * @iftype_num: array with the numbers of interfaces of each interface
4726 * type. The index is the interface type as specified in &enum
4729 * This function can be called by the driver to check whether a
4730 * combination of interfaces and their types are allowed according to
4731 * the interface combinations.
4733 int cfg80211_check_combinations(struct wiphy
*wiphy
,
4734 const int num_different_channels
,
4735 const u8 radar_detect
,
4736 const int iftype_num
[NUM_NL80211_IFTYPES
]);
4739 * cfg80211_iter_combinations - iterate over matching combinations
4742 * @num_different_channels: the number of different channels we want
4743 * to use for verification
4744 * @radar_detect: a bitmap where each bit corresponds to a channel
4745 * width where radar detection is needed, as in the definition of
4746 * &struct ieee80211_iface_combination.@radar_detect_widths
4747 * @iftype_num: array with the numbers of interfaces of each interface
4748 * type. The index is the interface type as specified in &enum
4750 * @iter: function to call for each matching combination
4751 * @data: pointer to pass to iter function
4753 * This function can be called by the driver to check what possible
4754 * combinations it fits in at a given moment, e.g. for channel switching
4757 int cfg80211_iter_combinations(struct wiphy
*wiphy
,
4758 const int num_different_channels
,
4759 const u8 radar_detect
,
4760 const int iftype_num
[NUM_NL80211_IFTYPES
],
4761 void (*iter
)(const struct ieee80211_iface_combination
*c
,
4766 * cfg80211_stop_iface - trigger interface disconnection
4769 * @wdev: wireless device
4770 * @gfp: context flags
4772 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
4775 * Note: This doesn't need any locks and is asynchronous.
4777 void cfg80211_stop_iface(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
4781 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
4782 * @wiphy: the wiphy to shut down
4784 * This function shuts down all interfaces belonging to this wiphy by
4785 * calling dev_close() (and treating non-netdev interfaces as needed).
4786 * It shouldn't really be used unless there are some fatal device errors
4787 * that really can't be recovered in any other way.
4789 * Callers must hold the RTNL and be able to deal with callbacks into
4790 * the driver while the function is running.
4792 void cfg80211_shutdown_all_interfaces(struct wiphy
*wiphy
);
4794 /* Logging, debugging and troubleshooting/diagnostic helpers. */
4796 /* wiphy_printk helpers, similar to dev_printk */
4798 #define wiphy_printk(level, wiphy, format, args...) \
4799 dev_printk(level, &(wiphy)->dev, format, ##args)
4800 #define wiphy_emerg(wiphy, format, args...) \
4801 dev_emerg(&(wiphy)->dev, format, ##args)
4802 #define wiphy_alert(wiphy, format, args...) \
4803 dev_alert(&(wiphy)->dev, format, ##args)
4804 #define wiphy_crit(wiphy, format, args...) \
4805 dev_crit(&(wiphy)->dev, format, ##args)
4806 #define wiphy_err(wiphy, format, args...) \
4807 dev_err(&(wiphy)->dev, format, ##args)
4808 #define wiphy_warn(wiphy, format, args...) \
4809 dev_warn(&(wiphy)->dev, format, ##args)
4810 #define wiphy_notice(wiphy, format, args...) \
4811 dev_notice(&(wiphy)->dev, format, ##args)
4812 #define wiphy_info(wiphy, format, args...) \
4813 dev_info(&(wiphy)->dev, format, ##args)
4815 #define wiphy_debug(wiphy, format, args...) \
4816 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
4818 #define wiphy_dbg(wiphy, format, args...) \
4819 dev_dbg(&(wiphy)->dev, format, ##args)
4821 #if defined(VERBOSE_DEBUG)
4822 #define wiphy_vdbg wiphy_dbg
4824 #define wiphy_vdbg(wiphy, format, args...) \
4827 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
4833 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
4834 * of using a WARN/WARN_ON to get the message out, including the
4835 * file/line information and a backtrace.
4837 #define wiphy_WARN(wiphy, format, args...) \
4838 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
4840 #endif /* __NET_CFG80211_H */