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_offsets_beacon: offsets of the counters within the beacon (tail)
698 * @counter_offsets_presp: offsets of the counters within the probe response
699 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
700 * @n_counter_offsets_presp: number of csa counters in the probe response
701 * @beacon_after: beacon data to be used on the new channel
702 * @radar_required: whether radar detection is required on the new channel
703 * @block_tx: whether transmissions should be blocked while changing
704 * @count: number of beacons until switch
706 struct cfg80211_csa_settings
{
707 struct cfg80211_chan_def chandef
;
708 struct cfg80211_beacon_data beacon_csa
;
709 const u16
*counter_offsets_beacon
;
710 const u16
*counter_offsets_presp
;
711 unsigned int n_counter_offsets_beacon
;
712 unsigned int n_counter_offsets_presp
;
713 struct cfg80211_beacon_data beacon_after
;
720 * enum station_parameters_apply_mask - station parameter values to apply
721 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
722 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
723 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
725 * Not all station parameters have in-band "no change" signalling,
726 * for those that don't these flags will are used.
728 enum station_parameters_apply_mask
{
729 STATION_PARAM_APPLY_UAPSD
= BIT(0),
730 STATION_PARAM_APPLY_CAPABILITY
= BIT(1),
731 STATION_PARAM_APPLY_PLINK_STATE
= BIT(2),
735 * struct station_parameters - station parameters
737 * Used to change and create a new station.
739 * @vlan: vlan interface station should belong to
740 * @supported_rates: supported rates in IEEE 802.11 format
741 * (or NULL for no change)
742 * @supported_rates_len: number of supported rates
743 * @sta_flags_mask: station flags that changed
744 * (bitmask of BIT(NL80211_STA_FLAG_...))
745 * @sta_flags_set: station flags values
746 * (bitmask of BIT(NL80211_STA_FLAG_...))
747 * @listen_interval: listen interval or -1 for no change
748 * @aid: AID or zero for no change
749 * @plink_action: plink action to take
750 * @plink_state: set the peer link state for a station
751 * @ht_capa: HT capabilities of station
752 * @vht_capa: VHT capabilities of station
753 * @uapsd_queues: bitmap of queues configured for uapsd. same format
754 * as the AC bitmap in the QoS info field
755 * @max_sp: max Service Period. same format as the MAX_SP in the
756 * QoS info field (but already shifted down)
757 * @sta_modify_mask: bitmap indicating which parameters changed
758 * (for those that don't have a natural "no change" value),
759 * see &enum station_parameters_apply_mask
760 * @local_pm: local link-specific mesh power save mode (no change when set
762 * @capability: station capability
763 * @ext_capab: extended capabilities of the station
764 * @ext_capab_len: number of extended capabilities
765 * @supported_channels: supported channels in IEEE 802.11 format
766 * @supported_channels_len: number of supported channels
767 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
768 * @supported_oper_classes_len: number of supported operating classes
769 * @opmode_notif: operating mode field from Operating Mode Notification
770 * @opmode_notif_used: information if operating mode field is used
772 struct station_parameters
{
773 const u8
*supported_rates
;
774 struct net_device
*vlan
;
775 u32 sta_flags_mask
, sta_flags_set
;
779 u8 supported_rates_len
;
782 const struct ieee80211_ht_cap
*ht_capa
;
783 const struct ieee80211_vht_cap
*vht_capa
;
786 enum nl80211_mesh_power_mode local_pm
;
790 const u8
*supported_channels
;
791 u8 supported_channels_len
;
792 const u8
*supported_oper_classes
;
793 u8 supported_oper_classes_len
;
795 bool opmode_notif_used
;
799 * enum cfg80211_station_type - the type of station being modified
800 * @CFG80211_STA_AP_CLIENT: client of an AP interface
801 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
802 * the AP MLME in the device
803 * @CFG80211_STA_AP_STA: AP station on managed interface
804 * @CFG80211_STA_IBSS: IBSS station
805 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
806 * while TDLS setup is in progress, it moves out of this state when
807 * being marked authorized; use this only if TDLS with external setup is
809 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
810 * entry that is operating, has been marked authorized by userspace)
811 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
812 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
814 enum cfg80211_station_type
{
815 CFG80211_STA_AP_CLIENT
,
816 CFG80211_STA_AP_MLME_CLIENT
,
819 CFG80211_STA_TDLS_PEER_SETUP
,
820 CFG80211_STA_TDLS_PEER_ACTIVE
,
821 CFG80211_STA_MESH_PEER_KERNEL
,
822 CFG80211_STA_MESH_PEER_USER
,
826 * cfg80211_check_station_change - validate parameter changes
827 * @wiphy: the wiphy this operates on
828 * @params: the new parameters for a station
829 * @statype: the type of station being modified
831 * Utility function for the @change_station driver method. Call this function
832 * with the appropriate station type looking up the station (and checking that
833 * it exists). It will verify whether the station change is acceptable, and if
834 * not will return an error code. Note that it may modify the parameters for
835 * backward compatibility reasons, so don't use them before calling this.
837 int cfg80211_check_station_change(struct wiphy
*wiphy
,
838 struct station_parameters
*params
,
839 enum cfg80211_station_type statype
);
842 * enum station_info_flags - station information flags
844 * Used by the driver to indicate which info in &struct station_info
845 * it has filled in during get_station() or dump_station().
847 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
848 * @STATION_INFO_RX_BYTES: @rx_bytes filled
849 * @STATION_INFO_TX_BYTES: @tx_bytes filled
850 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
851 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
852 * @STATION_INFO_LLID: @llid filled
853 * @STATION_INFO_PLID: @plid filled
854 * @STATION_INFO_PLINK_STATE: @plink_state filled
855 * @STATION_INFO_SIGNAL: @signal filled
856 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
857 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
858 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
859 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
860 * @STATION_INFO_TX_RETRIES: @tx_retries filled
861 * @STATION_INFO_TX_FAILED: @tx_failed filled
862 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
863 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
864 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
865 * @STATION_INFO_BSS_PARAM: @bss_param filled
866 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
867 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
868 * @STATION_INFO_STA_FLAGS: @sta_flags filled
869 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
870 * @STATION_INFO_T_OFFSET: @t_offset filled
871 * @STATION_INFO_LOCAL_PM: @local_pm filled
872 * @STATION_INFO_PEER_PM: @peer_pm filled
873 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
874 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
875 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
877 enum station_info_flags
{
878 STATION_INFO_INACTIVE_TIME
= 1<<0,
879 STATION_INFO_RX_BYTES
= 1<<1,
880 STATION_INFO_TX_BYTES
= 1<<2,
881 STATION_INFO_LLID
= 1<<3,
882 STATION_INFO_PLID
= 1<<4,
883 STATION_INFO_PLINK_STATE
= 1<<5,
884 STATION_INFO_SIGNAL
= 1<<6,
885 STATION_INFO_TX_BITRATE
= 1<<7,
886 STATION_INFO_RX_PACKETS
= 1<<8,
887 STATION_INFO_TX_PACKETS
= 1<<9,
888 STATION_INFO_TX_RETRIES
= 1<<10,
889 STATION_INFO_TX_FAILED
= 1<<11,
890 STATION_INFO_RX_DROP_MISC
= 1<<12,
891 STATION_INFO_SIGNAL_AVG
= 1<<13,
892 STATION_INFO_RX_BITRATE
= 1<<14,
893 STATION_INFO_BSS_PARAM
= 1<<15,
894 STATION_INFO_CONNECTED_TIME
= 1<<16,
895 STATION_INFO_ASSOC_REQ_IES
= 1<<17,
896 STATION_INFO_STA_FLAGS
= 1<<18,
897 STATION_INFO_BEACON_LOSS_COUNT
= 1<<19,
898 STATION_INFO_T_OFFSET
= 1<<20,
899 STATION_INFO_LOCAL_PM
= 1<<21,
900 STATION_INFO_PEER_PM
= 1<<22,
901 STATION_INFO_NONPEER_PM
= 1<<23,
902 STATION_INFO_RX_BYTES64
= 1<<24,
903 STATION_INFO_TX_BYTES64
= 1<<25,
904 STATION_INFO_CHAIN_SIGNAL
= 1<<26,
905 STATION_INFO_CHAIN_SIGNAL_AVG
= 1<<27,
909 * enum station_info_rate_flags - bitrate info flags
911 * Used by the driver to indicate the specific rate transmission
912 * type for 802.11n transmissions.
914 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
915 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
916 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
917 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
918 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
919 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
920 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
921 * @RATE_INFO_FLAGS_60G: 60GHz MCS
923 enum rate_info_flags
{
924 RATE_INFO_FLAGS_MCS
= BIT(0),
925 RATE_INFO_FLAGS_VHT_MCS
= BIT(1),
926 RATE_INFO_FLAGS_40_MHZ_WIDTH
= BIT(2),
927 RATE_INFO_FLAGS_80_MHZ_WIDTH
= BIT(3),
928 RATE_INFO_FLAGS_80P80_MHZ_WIDTH
= BIT(4),
929 RATE_INFO_FLAGS_160_MHZ_WIDTH
= BIT(5),
930 RATE_INFO_FLAGS_SHORT_GI
= BIT(6),
931 RATE_INFO_FLAGS_60G
= BIT(7),
935 * struct rate_info - bitrate information
937 * Information about a receiving or transmitting bitrate
939 * @flags: bitflag of flags from &enum rate_info_flags
940 * @mcs: mcs index if struct describes a 802.11n bitrate
941 * @legacy: bitrate in 100kbit/s for 802.11abg
942 * @nss: number of streams (VHT only)
952 * enum station_info_rate_flags - bitrate info flags
954 * Used by the driver to indicate the specific rate transmission
955 * type for 802.11n transmissions.
957 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
958 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
959 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
961 enum bss_param_flags
{
962 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
963 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
964 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
968 * struct sta_bss_parameters - BSS parameters for the attached station
970 * Information about the currently associated BSS
972 * @flags: bitflag of flags from &enum bss_param_flags
973 * @dtim_period: DTIM period for the BSS
974 * @beacon_interval: beacon interval
976 struct sta_bss_parameters
{
982 #define IEEE80211_MAX_CHAINS 4
985 * struct station_info - station information
987 * Station information filled by driver for get_station() and dump_station.
989 * @filled: bitflag of flags from &enum station_info_flags
990 * @connected_time: time(in secs) since a station is last connected
991 * @inactive_time: time since last station activity (tx/rx) in milliseconds
992 * @rx_bytes: bytes received from this station
993 * @tx_bytes: bytes transmitted to this station
994 * @llid: mesh local link id
995 * @plid: mesh peer link id
996 * @plink_state: mesh peer link state
997 * @signal: The signal strength, type depends on the wiphy's signal_type.
998 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
999 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1000 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1001 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1002 * @chain_signal: per-chain signal strength of last received packet in dBm
1003 * @chain_signal_avg: per-chain signal strength average in dBm
1004 * @txrate: current unicast bitrate from this station
1005 * @rxrate: current unicast bitrate to this station
1006 * @rx_packets: packets received from this station
1007 * @tx_packets: packets transmitted to this station
1008 * @tx_retries: cumulative retry counts
1009 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
1010 * @rx_dropped_misc: Dropped for un-specified reason.
1011 * @bss_param: current BSS parameters
1012 * @generation: generation number for nl80211 dumps.
1013 * This number should increase every time the list of stations
1014 * changes, i.e. when a station is added or removed, so that
1015 * userspace can tell whether it got a consistent snapshot.
1016 * @assoc_req_ies: IEs from (Re)Association Request.
1017 * This is used only when in AP mode with drivers that do not use
1018 * user space MLME/SME implementation. The information is provided for
1019 * the cfg80211_new_sta() calls to notify user space of the IEs.
1020 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1021 * @sta_flags: station flags mask & values
1022 * @beacon_loss_count: Number of times beacon loss event has triggered.
1023 * @t_offset: Time offset of the station relative to this host.
1024 * @local_pm: local mesh STA power save mode
1025 * @peer_pm: peer mesh STA power save mode
1026 * @nonpeer_pm: non-peer mesh STA power save mode
1028 struct station_info
{
1041 s8 chain_signal
[IEEE80211_MAX_CHAINS
];
1042 s8 chain_signal_avg
[IEEE80211_MAX_CHAINS
];
1044 struct rate_info txrate
;
1045 struct rate_info rxrate
;
1050 u32 rx_dropped_misc
;
1051 struct sta_bss_parameters bss_param
;
1052 struct nl80211_sta_flag_update sta_flags
;
1056 const u8
*assoc_req_ies
;
1057 size_t assoc_req_ies_len
;
1059 u32 beacon_loss_count
;
1061 enum nl80211_mesh_power_mode local_pm
;
1062 enum nl80211_mesh_power_mode peer_pm
;
1063 enum nl80211_mesh_power_mode nonpeer_pm
;
1066 * Note: Add a new enum station_info_flags value for each new field and
1067 * use it to check which fields are initialized.
1072 * enum monitor_flags - monitor flags
1074 * Monitor interface configuration flags. Note that these must be the bits
1075 * according to the nl80211 flags.
1077 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1078 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1079 * @MONITOR_FLAG_CONTROL: pass control frames
1080 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1081 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1082 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1084 enum monitor_flags
{
1085 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
1086 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
1087 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
1088 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
1089 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
1090 MONITOR_FLAG_ACTIVE
= 1<<NL80211_MNTR_FLAG_ACTIVE
,
1094 * enum mpath_info_flags - mesh path information flags
1096 * Used by the driver to indicate which info in &struct mpath_info it has filled
1097 * in during get_station() or dump_station().
1099 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1100 * @MPATH_INFO_SN: @sn filled
1101 * @MPATH_INFO_METRIC: @metric filled
1102 * @MPATH_INFO_EXPTIME: @exptime filled
1103 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1104 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1105 * @MPATH_INFO_FLAGS: @flags filled
1107 enum mpath_info_flags
{
1108 MPATH_INFO_FRAME_QLEN
= BIT(0),
1109 MPATH_INFO_SN
= BIT(1),
1110 MPATH_INFO_METRIC
= BIT(2),
1111 MPATH_INFO_EXPTIME
= BIT(3),
1112 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
1113 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
1114 MPATH_INFO_FLAGS
= BIT(6),
1118 * struct mpath_info - mesh path information
1120 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1122 * @filled: bitfield of flags from &enum mpath_info_flags
1123 * @frame_qlen: number of queued frames for this destination
1124 * @sn: target sequence number
1125 * @metric: metric (cost) of this mesh path
1126 * @exptime: expiration time for the mesh path from now, in msecs
1127 * @flags: mesh path flags
1128 * @discovery_timeout: total mesh path discovery timeout, in msecs
1129 * @discovery_retries: mesh path discovery retries
1130 * @generation: generation number for nl80211 dumps.
1131 * This number should increase every time the list of mesh paths
1132 * changes, i.e. when a station is added or removed, so that
1133 * userspace can tell whether it got a consistent snapshot.
1141 u32 discovery_timeout
;
1142 u8 discovery_retries
;
1149 * struct bss_parameters - BSS parameters
1151 * Used to change BSS parameters (mainly for AP mode).
1153 * @use_cts_prot: Whether to use CTS protection
1154 * (0 = no, 1 = yes, -1 = do not change)
1155 * @use_short_preamble: Whether the use of short preambles is allowed
1156 * (0 = no, 1 = yes, -1 = do not change)
1157 * @use_short_slot_time: Whether the use of short slot time is allowed
1158 * (0 = no, 1 = yes, -1 = do not change)
1159 * @basic_rates: basic rates in IEEE 802.11 format
1160 * (or NULL for no change)
1161 * @basic_rates_len: number of basic rates
1162 * @ap_isolate: do not forward packets between connected stations
1163 * @ht_opmode: HT Operation mode
1164 * (u16 = opmode, -1 = do not change)
1165 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1166 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1168 struct bss_parameters
{
1170 int use_short_preamble
;
1171 int use_short_slot_time
;
1176 s8 p2p_ctwindow
, p2p_opp_ps
;
1180 * struct mesh_config - 802.11s mesh configuration
1182 * These parameters can be changed while the mesh is active.
1184 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1185 * by the Mesh Peering Open message
1186 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1187 * used by the Mesh Peering Open message
1188 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1189 * the mesh peering management to close a mesh peering
1190 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1192 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1193 * be sent to establish a new peer link instance in a mesh
1194 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1195 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1197 * @auto_open_plinks: whether we should automatically open peer links when we
1198 * detect compatible mesh peers
1199 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1200 * synchronize to for 11s default synchronization method
1201 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1202 * that an originator mesh STA can send to a particular path target
1203 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1204 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1205 * a path discovery in milliseconds
1206 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1207 * receiving a PREQ shall consider the forwarding information from the
1208 * root to be valid. (TU = time unit)
1209 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1210 * which a mesh STA can send only one action frame containing a PREQ
1212 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1213 * which a mesh STA can send only one Action frame containing a PERR
1215 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1216 * it takes for an HWMP information element to propagate across the mesh
1217 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1218 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1219 * announcements are transmitted
1220 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1221 * station has access to a broader network beyond the MBSS. (This is
1222 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1223 * only means that the station will announce others it's a mesh gate, but
1224 * not necessarily using the gate announcement protocol. Still keeping the
1225 * same nomenclature to be in sync with the spec)
1226 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1227 * entity (default is TRUE - forwarding entity)
1228 * @rssi_threshold: the threshold for average signal strength of candidate
1229 * station to establish a peer link
1230 * @ht_opmode: mesh HT protection mode
1232 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1233 * receiving a proactive PREQ shall consider the forwarding information to
1234 * the root mesh STA to be valid.
1236 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1237 * PREQs are transmitted.
1238 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1239 * during which a mesh STA can send only one Action frame containing
1240 * a PREQ element for root path confirmation.
1241 * @power_mode: The default mesh power save mode which will be the initial
1242 * setting for new peer links.
1243 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1244 * after transmitting its beacon.
1245 * @plink_timeout: If no tx activity is seen from a STA we've established
1246 * peering with for longer than this time (in seconds), then remove it
1247 * from the STA's list of peers. Default is 30 minutes.
1249 struct mesh_config
{
1250 u16 dot11MeshRetryTimeout
;
1251 u16 dot11MeshConfirmTimeout
;
1252 u16 dot11MeshHoldingTimeout
;
1253 u16 dot11MeshMaxPeerLinks
;
1254 u8 dot11MeshMaxRetries
;
1257 bool auto_open_plinks
;
1258 u32 dot11MeshNbrOffsetMaxNeighbor
;
1259 u8 dot11MeshHWMPmaxPREQretries
;
1260 u32 path_refresh_time
;
1261 u16 min_discovery_timeout
;
1262 u32 dot11MeshHWMPactivePathTimeout
;
1263 u16 dot11MeshHWMPpreqMinInterval
;
1264 u16 dot11MeshHWMPperrMinInterval
;
1265 u16 dot11MeshHWMPnetDiameterTraversalTime
;
1266 u8 dot11MeshHWMPRootMode
;
1267 u16 dot11MeshHWMPRannInterval
;
1268 bool dot11MeshGateAnnouncementProtocol
;
1269 bool dot11MeshForwarding
;
1272 u32 dot11MeshHWMPactivePathToRootTimeout
;
1273 u16 dot11MeshHWMProotInterval
;
1274 u16 dot11MeshHWMPconfirmationInterval
;
1275 enum nl80211_mesh_power_mode power_mode
;
1276 u16 dot11MeshAwakeWindowDuration
;
1281 * struct mesh_setup - 802.11s mesh setup configuration
1282 * @chandef: defines the channel to use
1283 * @mesh_id: the mesh ID
1284 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1285 * @sync_method: which synchronization method to use
1286 * @path_sel_proto: which path selection protocol to use
1287 * @path_metric: which metric to use
1288 * @auth_id: which authentication method this mesh is using
1289 * @ie: vendor information elements (optional)
1290 * @ie_len: length of vendor information elements
1291 * @is_authenticated: this mesh requires authentication
1292 * @is_secure: this mesh uses security
1293 * @user_mpm: userspace handles all MPM functions
1294 * @dtim_period: DTIM period to use
1295 * @beacon_interval: beacon interval to use
1296 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1297 * @basic_rates: basic rates to use when creating the mesh
1299 * These parameters are fixed when the mesh is created.
1302 struct cfg80211_chan_def chandef
;
1311 bool is_authenticated
;
1315 u16 beacon_interval
;
1316 int mcast_rate
[IEEE80211_NUM_BANDS
];
1321 * struct ieee80211_txq_params - TX queue parameters
1322 * @ac: AC identifier
1323 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1324 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1326 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1328 * @aifs: Arbitration interframe space [0..255]
1330 struct ieee80211_txq_params
{
1339 * DOC: Scanning and BSS list handling
1341 * The scanning process itself is fairly simple, but cfg80211 offers quite
1342 * a bit of helper functionality. To start a scan, the scan operation will
1343 * be invoked with a scan definition. This scan definition contains the
1344 * channels to scan, and the SSIDs to send probe requests for (including the
1345 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1346 * probe. Additionally, a scan request may contain extra information elements
1347 * that should be added to the probe request. The IEs are guaranteed to be
1348 * well-formed, and will not exceed the maximum length the driver advertised
1349 * in the wiphy structure.
1351 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1352 * it is responsible for maintaining the BSS list; the driver should not
1353 * maintain a list itself. For this notification, various functions exist.
1355 * Since drivers do not maintain a BSS list, there are also a number of
1356 * functions to search for a BSS and obtain information about it from the
1357 * BSS structure cfg80211 maintains. The BSS list is also made available
1362 * struct cfg80211_ssid - SSID description
1364 * @ssid_len: length of the ssid
1366 struct cfg80211_ssid
{
1367 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1372 * struct cfg80211_scan_request - scan request description
1374 * @ssids: SSIDs to scan for (active scan only)
1375 * @n_ssids: number of SSIDs
1376 * @channels: channels to scan on.
1377 * @n_channels: total number of channels to scan
1378 * @scan_width: channel width for scanning
1379 * @ie: optional information element(s) to add into Probe Request or %NULL
1380 * @ie_len: length of ie in octets
1381 * @flags: bit field of flags controlling operation
1382 * @rates: bitmap of rates to advertise for each band
1383 * @wiphy: the wiphy this was for
1384 * @scan_start: time (in jiffies) when the scan started
1385 * @wdev: the wireless device to scan for
1386 * @aborted: (internal) scan request was notified as aborted
1387 * @notified: (internal) scan request was notified as done or aborted
1388 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1390 struct cfg80211_scan_request
{
1391 struct cfg80211_ssid
*ssids
;
1394 enum nl80211_bss_scan_width scan_width
;
1399 u32 rates
[IEEE80211_NUM_BANDS
];
1401 struct wireless_dev
*wdev
;
1404 struct wiphy
*wiphy
;
1405 unsigned long scan_start
;
1406 bool aborted
, notified
;
1410 struct ieee80211_channel
*channels
[0];
1414 * struct cfg80211_match_set - sets of attributes to match
1416 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
1417 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1419 struct cfg80211_match_set
{
1420 struct cfg80211_ssid ssid
;
1425 * struct cfg80211_sched_scan_request - scheduled scan request description
1427 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1428 * @n_ssids: number of SSIDs
1429 * @n_channels: total number of channels to scan
1430 * @scan_width: channel width for scanning
1431 * @interval: interval between each scheduled scan cycle
1432 * @ie: optional information element(s) to add into Probe Request or %NULL
1433 * @ie_len: length of ie in octets
1434 * @flags: bit field of flags controlling operation
1435 * @match_sets: sets of parameters to be matched for a scan result
1436 * entry to be considered valid and to be passed to the host
1437 * (others are filtered out).
1438 * If ommited, all results are passed.
1439 * @n_match_sets: number of match sets
1440 * @wiphy: the wiphy this was for
1441 * @dev: the interface
1442 * @scan_start: start time of the scheduled scan
1443 * @channels: channels to scan
1444 * @min_rssi_thold: for drivers only supporting a single threshold, this
1445 * contains the minimum over all matchsets
1447 struct cfg80211_sched_scan_request
{
1448 struct cfg80211_ssid
*ssids
;
1451 enum nl80211_bss_scan_width scan_width
;
1456 struct cfg80211_match_set
*match_sets
;
1461 struct wiphy
*wiphy
;
1462 struct net_device
*dev
;
1463 unsigned long scan_start
;
1466 struct ieee80211_channel
*channels
[0];
1470 * enum cfg80211_signal_type - signal type
1472 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1473 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1474 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1476 enum cfg80211_signal_type
{
1477 CFG80211_SIGNAL_TYPE_NONE
,
1478 CFG80211_SIGNAL_TYPE_MBM
,
1479 CFG80211_SIGNAL_TYPE_UNSPEC
,
1483 * struct cfg80211_bss_ie_data - BSS entry IE data
1484 * @tsf: TSF contained in the frame that carried these IEs
1485 * @rcu_head: internal use, for freeing
1486 * @len: length of the IEs
1489 struct cfg80211_bss_ies
{
1491 struct rcu_head rcu_head
;
1497 * struct cfg80211_bss - BSS description
1499 * This structure describes a BSS (which may also be a mesh network)
1500 * for use in scan results and similar.
1502 * @channel: channel this BSS is on
1503 * @scan_width: width of the control channel
1504 * @bssid: BSSID of the BSS
1505 * @beacon_interval: the beacon interval as from the frame
1506 * @capability: the capability field in host byte order
1507 * @ies: the information elements (Note that there is no guarantee that these
1508 * are well-formed!); this is a pointer to either the beacon_ies or
1509 * proberesp_ies depending on whether Probe Response frame has been
1510 * received. It is always non-%NULL.
1511 * @beacon_ies: the information elements from the last Beacon frame
1512 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1513 * own the beacon_ies, but they're just pointers to the ones from the
1514 * @hidden_beacon_bss struct)
1515 * @proberesp_ies: the information elements from the last Probe Response frame
1516 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1517 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1518 * that holds the beacon data. @beacon_ies is still valid, of course, and
1519 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1520 * @signal: signal strength value (type depends on the wiphy's signal_type)
1521 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1523 struct cfg80211_bss
{
1524 struct ieee80211_channel
*channel
;
1525 enum nl80211_bss_scan_width scan_width
;
1527 const struct cfg80211_bss_ies __rcu
*ies
;
1528 const struct cfg80211_bss_ies __rcu
*beacon_ies
;
1529 const struct cfg80211_bss_ies __rcu
*proberesp_ies
;
1531 struct cfg80211_bss
*hidden_beacon_bss
;
1535 u16 beacon_interval
;
1540 u8 priv
[0] __aligned(sizeof(void *));
1544 * ieee80211_bss_get_ie - find IE with given ID
1545 * @bss: the bss to search
1548 * Note that the return value is an RCU-protected pointer, so
1549 * rcu_read_lock() must be held when calling this function.
1550 * Return: %NULL if not found.
1552 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1556 * struct cfg80211_auth_request - Authentication request data
1558 * This structure provides information needed to complete IEEE 802.11
1561 * @bss: The BSS to authenticate with, the callee must obtain a reference
1562 * to it if it needs to keep it.
1563 * @auth_type: Authentication type (algorithm)
1564 * @ie: Extra IEs to add to Authentication frame or %NULL
1565 * @ie_len: Length of ie buffer in octets
1566 * @key_len: length of WEP key for shared key authentication
1567 * @key_idx: index of WEP key for shared key authentication
1568 * @key: WEP key for shared key authentication
1569 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1570 * Authentication transaction sequence number field.
1571 * @sae_data_len: Length of sae_data buffer in octets
1573 struct cfg80211_auth_request
{
1574 struct cfg80211_bss
*bss
;
1577 enum nl80211_auth_type auth_type
;
1579 u8 key_len
, key_idx
;
1581 size_t sae_data_len
;
1585 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1587 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1588 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1590 enum cfg80211_assoc_req_flags
{
1591 ASSOC_REQ_DISABLE_HT
= BIT(0),
1592 ASSOC_REQ_DISABLE_VHT
= BIT(1),
1596 * struct cfg80211_assoc_request - (Re)Association request data
1598 * This structure provides information needed to complete IEEE 802.11
1600 * @bss: The BSS to associate with. If the call is successful the driver is
1601 * given a reference that it must give back to cfg80211_send_rx_assoc()
1602 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1603 * association requests while already associating must be rejected.
1604 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1605 * @ie_len: Length of ie buffer in octets
1606 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1607 * @crypto: crypto settings
1608 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1609 * @flags: See &enum cfg80211_assoc_req_flags
1610 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1611 * will be used in ht_capa. Un-supported values will be ignored.
1612 * @ht_capa_mask: The bits of ht_capa which are to be used.
1613 * @vht_capa: VHT capability override
1614 * @vht_capa_mask: VHT capability mask indicating which fields to use
1616 struct cfg80211_assoc_request
{
1617 struct cfg80211_bss
*bss
;
1618 const u8
*ie
, *prev_bssid
;
1620 struct cfg80211_crypto_settings crypto
;
1623 struct ieee80211_ht_cap ht_capa
;
1624 struct ieee80211_ht_cap ht_capa_mask
;
1625 struct ieee80211_vht_cap vht_capa
, vht_capa_mask
;
1629 * struct cfg80211_deauth_request - Deauthentication request data
1631 * This structure provides information needed to complete IEEE 802.11
1634 * @bssid: the BSSID of the BSS to deauthenticate from
1635 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1636 * @ie_len: Length of ie buffer in octets
1637 * @reason_code: The reason code for the deauthentication
1638 * @local_state_change: if set, change local state only and
1639 * do not set a deauth frame
1641 struct cfg80211_deauth_request
{
1646 bool local_state_change
;
1650 * struct cfg80211_disassoc_request - Disassociation request data
1652 * This structure provides information needed to complete IEEE 802.11
1655 * @bss: the BSS to disassociate from
1656 * @ie: Extra IEs to add to Disassociation frame or %NULL
1657 * @ie_len: Length of ie buffer in octets
1658 * @reason_code: The reason code for the disassociation
1659 * @local_state_change: This is a request for a local state only, i.e., no
1660 * Disassociation frame is to be transmitted.
1662 struct cfg80211_disassoc_request
{
1663 struct cfg80211_bss
*bss
;
1667 bool local_state_change
;
1671 * struct cfg80211_ibss_params - IBSS parameters
1673 * This structure defines the IBSS parameters for the join_ibss()
1676 * @ssid: The SSID, will always be non-null.
1677 * @ssid_len: The length of the SSID, will always be non-zero.
1678 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1679 * search for IBSSs with a different BSSID.
1680 * @chandef: defines the channel to use if no other IBSS to join can be found
1681 * @channel_fixed: The channel should be fixed -- do not search for
1682 * IBSSs to join on other channels.
1683 * @ie: information element(s) to include in the beacon
1684 * @ie_len: length of that
1685 * @beacon_interval: beacon interval to use
1686 * @privacy: this is a protected network, keys will be configured
1688 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1689 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1690 * required to assume that the port is unauthorized until authorized by
1691 * user space. Otherwise, port is marked authorized by default.
1692 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1693 * changes the channel when a radar is detected. This is required
1694 * to operate on DFS channels.
1695 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1696 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1697 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1698 * will be used in ht_capa. Un-supported values will be ignored.
1699 * @ht_capa_mask: The bits of ht_capa which are to be used.
1701 struct cfg80211_ibss_params
{
1704 struct cfg80211_chan_def chandef
;
1706 u8 ssid_len
, ie_len
;
1707 u16 beacon_interval
;
1712 bool userspace_handles_dfs
;
1713 int mcast_rate
[IEEE80211_NUM_BANDS
];
1714 struct ieee80211_ht_cap ht_capa
;
1715 struct ieee80211_ht_cap ht_capa_mask
;
1719 * struct cfg80211_connect_params - Connection parameters
1721 * This structure provides information needed to complete IEEE 802.11
1722 * authentication and association.
1724 * @channel: The channel to use or %NULL if not specified (auto-select based
1726 * @channel_hint: The channel of the recommended BSS for initial connection or
1727 * %NULL if not specified
1728 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1730 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
1731 * %NULL if not specified. Unlike the @bssid parameter, the driver is
1732 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
1735 * @ssid_len: Length of ssid in octets
1736 * @auth_type: Authentication type (algorithm)
1737 * @ie: IEs for association request
1738 * @ie_len: Length of assoc_ie in octets
1739 * @privacy: indicates whether privacy-enabled APs should be used
1740 * @mfp: indicate whether management frame protection is used
1741 * @crypto: crypto settings
1742 * @key_len: length of WEP key for shared key authentication
1743 * @key_idx: index of WEP key for shared key authentication
1744 * @key: WEP key for shared key authentication
1745 * @flags: See &enum cfg80211_assoc_req_flags
1746 * @bg_scan_period: Background scan period in seconds
1747 * or -1 to indicate that default value is to be used.
1748 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1749 * will be used in ht_capa. Un-supported values will be ignored.
1750 * @ht_capa_mask: The bits of ht_capa which are to be used.
1751 * @vht_capa: VHT Capability overrides
1752 * @vht_capa_mask: The bits of vht_capa which are to be used.
1754 struct cfg80211_connect_params
{
1755 struct ieee80211_channel
*channel
;
1756 struct ieee80211_channel
*channel_hint
;
1758 const u8
*bssid_hint
;
1761 enum nl80211_auth_type auth_type
;
1765 enum nl80211_mfp mfp
;
1766 struct cfg80211_crypto_settings crypto
;
1768 u8 key_len
, key_idx
;
1771 struct ieee80211_ht_cap ht_capa
;
1772 struct ieee80211_ht_cap ht_capa_mask
;
1773 struct ieee80211_vht_cap vht_capa
;
1774 struct ieee80211_vht_cap vht_capa_mask
;
1778 * enum wiphy_params_flags - set_wiphy_params bitfield values
1779 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1780 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1781 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1782 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1783 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1785 enum wiphy_params_flags
{
1786 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1787 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1788 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1789 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1790 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1794 * cfg80211_bitrate_mask - masks for bitrate control
1796 struct cfg80211_bitrate_mask
{
1799 u8 ht_mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1800 u16 vht_mcs
[NL80211_VHT_NSS_MAX
];
1801 enum nl80211_txrate_gi gi
;
1802 } control
[IEEE80211_NUM_BANDS
];
1805 * struct cfg80211_pmksa - PMK Security Association
1807 * This structure is passed to the set/del_pmksa() method for PMKSA
1810 * @bssid: The AP's BSSID.
1811 * @pmkid: The PMK material itself.
1813 struct cfg80211_pmksa
{
1819 * struct cfg80211_pkt_pattern - packet pattern
1820 * @mask: bitmask where to match pattern and where to ignore bytes,
1821 * one bit per byte, in same format as nl80211
1822 * @pattern: bytes to match where bitmask is 1
1823 * @pattern_len: length of pattern (in bytes)
1824 * @pkt_offset: packet offset (in bytes)
1826 * Internal note: @mask and @pattern are allocated in one chunk of
1827 * memory, free @mask only!
1829 struct cfg80211_pkt_pattern
{
1836 * struct cfg80211_wowlan_tcp - TCP connection parameters
1838 * @sock: (internal) socket for source port allocation
1839 * @src: source IP address
1840 * @dst: destination IP address
1841 * @dst_mac: destination MAC address
1842 * @src_port: source port
1843 * @dst_port: destination port
1844 * @payload_len: data payload length
1845 * @payload: data payload buffer
1846 * @payload_seq: payload sequence stamping configuration
1847 * @data_interval: interval at which to send data packets
1848 * @wake_len: wakeup payload match length
1849 * @wake_data: wakeup payload match data
1850 * @wake_mask: wakeup payload match mask
1851 * @tokens_size: length of the tokens buffer
1852 * @payload_tok: payload token usage configuration
1854 struct cfg80211_wowlan_tcp
{
1855 struct socket
*sock
;
1857 u16 src_port
, dst_port
;
1858 u8 dst_mac
[ETH_ALEN
];
1861 struct nl80211_wowlan_tcp_data_seq payload_seq
;
1864 const u8
*wake_data
, *wake_mask
;
1866 /* must be last, variable member */
1867 struct nl80211_wowlan_tcp_data_token payload_tok
;
1871 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1873 * This structure defines the enabled WoWLAN triggers for the device.
1874 * @any: wake up on any activity -- special trigger if device continues
1875 * operating as normal during suspend
1876 * @disconnect: wake up if getting disconnected
1877 * @magic_pkt: wake up on receiving magic packet
1878 * @patterns: wake up on receiving packet matching a pattern
1879 * @n_patterns: number of patterns
1880 * @gtk_rekey_failure: wake up on GTK rekey failure
1881 * @eap_identity_req: wake up on EAP identity request packet
1882 * @four_way_handshake: wake up on 4-way handshake
1883 * @rfkill_release: wake up when rfkill is released
1884 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
1885 * NULL if not configured.
1887 struct cfg80211_wowlan
{
1888 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1889 eap_identity_req
, four_way_handshake
,
1891 struct cfg80211_pkt_pattern
*patterns
;
1892 struct cfg80211_wowlan_tcp
*tcp
;
1897 * struct cfg80211_coalesce_rules - Coalesce rule parameters
1899 * This structure defines coalesce rule for the device.
1900 * @delay: maximum coalescing delay in msecs.
1901 * @condition: condition for packet coalescence.
1902 * see &enum nl80211_coalesce_condition.
1903 * @patterns: array of packet patterns
1904 * @n_patterns: number of patterns
1906 struct cfg80211_coalesce_rules
{
1908 enum nl80211_coalesce_condition condition
;
1909 struct cfg80211_pkt_pattern
*patterns
;
1914 * struct cfg80211_coalesce - Packet coalescing settings
1916 * This structure defines coalescing settings.
1917 * @rules: array of coalesce rules
1918 * @n_rules: number of rules
1920 struct cfg80211_coalesce
{
1921 struct cfg80211_coalesce_rules
*rules
;
1926 * struct cfg80211_wowlan_wakeup - wakeup report
1927 * @disconnect: woke up by getting disconnected
1928 * @magic_pkt: woke up by receiving magic packet
1929 * @gtk_rekey_failure: woke up by GTK rekey failure
1930 * @eap_identity_req: woke up by EAP identity request packet
1931 * @four_way_handshake: woke up by 4-way handshake
1932 * @rfkill_release: woke up by rfkill being released
1933 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
1934 * @packet_present_len: copied wakeup packet data
1935 * @packet_len: original wakeup packet length
1936 * @packet: The packet causing the wakeup, if any.
1937 * @packet_80211: For pattern match, magic packet and other data
1938 * frame triggers an 802.3 frame should be reported, for
1939 * disconnect due to deauth 802.11 frame. This indicates which
1941 * @tcp_match: TCP wakeup packet received
1942 * @tcp_connlost: TCP connection lost or failed to establish
1943 * @tcp_nomoretokens: TCP data ran out of tokens
1945 struct cfg80211_wowlan_wakeup
{
1946 bool disconnect
, magic_pkt
, gtk_rekey_failure
,
1947 eap_identity_req
, four_way_handshake
,
1948 rfkill_release
, packet_80211
,
1949 tcp_match
, tcp_connlost
, tcp_nomoretokens
;
1951 u32 packet_present_len
, packet_len
;
1956 * struct cfg80211_gtk_rekey_data - rekey data
1957 * @kek: key encryption key
1958 * @kck: key confirmation key
1959 * @replay_ctr: replay counter
1961 struct cfg80211_gtk_rekey_data
{
1962 u8 kek
[NL80211_KEK_LEN
];
1963 u8 kck
[NL80211_KCK_LEN
];
1964 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1968 * struct cfg80211_update_ft_ies_params - FT IE Information
1970 * This structure provides information needed to update the fast transition IE
1972 * @md: The Mobility Domain ID, 2 Octet value
1973 * @ie: Fast Transition IEs
1974 * @ie_len: Length of ft_ie in octets
1976 struct cfg80211_update_ft_ies_params
{
1983 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
1985 * This structure provides information needed to transmit a mgmt frame
1987 * @chan: channel to use
1988 * @offchan: indicates wether off channel operation is required
1989 * @wait: duration for ROC
1990 * @buf: buffer to transmit
1991 * @len: buffer length
1992 * @no_cck: don't use cck rates for this frame
1993 * @dont_wait_for_ack: tells the low level not to wait for an ack
1994 * @n_csa_offsets: length of csa_offsets array
1995 * @csa_offsets: array of all the csa offsets in the frame
1997 struct cfg80211_mgmt_tx_params
{
1998 struct ieee80211_channel
*chan
;
2004 bool dont_wait_for_ack
;
2006 const u16
*csa_offsets
;
2010 * struct cfg80211_dscp_exception - DSCP exception
2012 * @dscp: DSCP value that does not adhere to the user priority range definition
2013 * @up: user priority value to which the corresponding DSCP value belongs
2015 struct cfg80211_dscp_exception
{
2021 * struct cfg80211_dscp_range - DSCP range definition for user priority
2023 * @low: lowest DSCP value of this user priority range, inclusive
2024 * @high: highest DSCP value of this user priority range, inclusive
2026 struct cfg80211_dscp_range
{
2031 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2032 #define IEEE80211_QOS_MAP_MAX_EX 21
2033 #define IEEE80211_QOS_MAP_LEN_MIN 16
2034 #define IEEE80211_QOS_MAP_LEN_MAX \
2035 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2038 * struct cfg80211_qos_map - QoS Map Information
2040 * This struct defines the Interworking QoS map setting for DSCP values
2042 * @num_des: number of DSCP exceptions (0..21)
2043 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2044 * the user priority DSCP range definition
2045 * @up: DSCP range definition for a particular user priority
2047 struct cfg80211_qos_map
{
2049 struct cfg80211_dscp_exception dscp_exception
[IEEE80211_QOS_MAP_MAX_EX
];
2050 struct cfg80211_dscp_range up
[8];
2054 * struct cfg80211_ops - backend description for wireless configuration
2056 * This struct is registered by fullmac card drivers and/or wireless stacks
2057 * in order to handle configuration requests on their interfaces.
2059 * All callbacks except where otherwise noted should return 0
2060 * on success or a negative error code.
2062 * All operations are currently invoked under rtnl for consistency with the
2063 * wireless extensions but this is subject to reevaluation as soon as this
2064 * code is used more widely and we have a first user without wext.
2066 * @suspend: wiphy device needs to be suspended. The variable @wow will
2067 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2068 * configured for the device.
2069 * @resume: wiphy device needs to be resumed
2070 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2071 * to call device_set_wakeup_enable() to enable/disable wakeup from
2074 * @add_virtual_intf: create a new virtual interface with the given name,
2075 * must set the struct wireless_dev's iftype. Beware: You must create
2076 * the new netdev in the wiphy's network namespace! Returns the struct
2077 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2078 * also set the address member in the wdev.
2080 * @del_virtual_intf: remove the virtual interface
2082 * @change_virtual_intf: change type/configuration of virtual interface,
2083 * keep the struct wireless_dev's iftype updated.
2085 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2086 * when adding a group key.
2088 * @get_key: get information about the key with the given parameters.
2089 * @mac_addr will be %NULL when requesting information for a group
2090 * key. All pointers given to the @callback function need not be valid
2091 * after it returns. This function should return an error if it is
2092 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2094 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2095 * and @key_index, return -ENOENT if the key doesn't exist.
2097 * @set_default_key: set the default key on an interface
2099 * @set_default_mgmt_key: set the default management frame key on an interface
2101 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2103 * @start_ap: Start acting in AP mode defined by the parameters.
2104 * @change_beacon: Change the beacon parameters for an access point mode
2105 * interface. This should reject the call when AP mode wasn't started.
2106 * @stop_ap: Stop being an AP, including stopping beaconing.
2108 * @add_station: Add a new station.
2109 * @del_station: Remove a station; @mac may be NULL to remove all stations.
2110 * @change_station: Modify a given station. Note that flags changes are not much
2111 * validated in cfg80211, in particular the auth/assoc/authorized flags
2112 * might come to the driver in invalid combinations -- make sure to check
2113 * them, also against the existing state! Drivers must call
2114 * cfg80211_check_station_change() to validate the information.
2115 * @get_station: get station information for the station identified by @mac
2116 * @dump_station: dump station callback -- resume dump at index @idx
2118 * @add_mpath: add a fixed mesh path
2119 * @del_mpath: delete a given mesh path
2120 * @change_mpath: change a given mesh path
2121 * @get_mpath: get a mesh path for the given parameters
2122 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2123 * @join_mesh: join the mesh network with the specified parameters
2124 * (invoked with the wireless_dev mutex held)
2125 * @leave_mesh: leave the current mesh network
2126 * (invoked with the wireless_dev mutex held)
2128 * @get_mesh_config: Get the current mesh configuration
2130 * @update_mesh_config: Update mesh parameters on a running mesh.
2131 * The mask is a bitfield which tells us which parameters to
2132 * set, and which to leave alone.
2134 * @change_bss: Modify parameters for a given BSS.
2136 * @set_txq_params: Set TX queue parameters
2138 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2139 * as it doesn't implement join_mesh and needs to set the channel to
2140 * join the mesh instead.
2142 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2143 * interfaces are active this callback should reject the configuration.
2144 * If no interfaces are active or the device is down, the channel should
2145 * be stored for when a monitor interface becomes active.
2147 * @scan: Request to do a scan. If returning zero, the scan request is given
2148 * the driver, and will be valid until passed to cfg80211_scan_done().
2149 * For scan results, call cfg80211_inform_bss(); you can call this outside
2150 * the scan/scan_done bracket too.
2152 * @auth: Request to authenticate with the specified peer
2153 * (invoked with the wireless_dev mutex held)
2154 * @assoc: Request to (re)associate with the specified peer
2155 * (invoked with the wireless_dev mutex held)
2156 * @deauth: Request to deauthenticate from the specified peer
2157 * (invoked with the wireless_dev mutex held)
2158 * @disassoc: Request to disassociate from the specified peer
2159 * (invoked with the wireless_dev mutex held)
2161 * @connect: Connect to the ESS with the specified parameters. When connected,
2162 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
2163 * If the connection fails for some reason, call cfg80211_connect_result()
2164 * with the status from the AP.
2165 * (invoked with the wireless_dev mutex held)
2166 * @disconnect: Disconnect from the BSS/ESS.
2167 * (invoked with the wireless_dev mutex held)
2169 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2170 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2172 * (invoked with the wireless_dev mutex held)
2173 * @leave_ibss: Leave the IBSS.
2174 * (invoked with the wireless_dev mutex held)
2176 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2179 * @set_wiphy_params: Notify that wiphy parameters have changed;
2180 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2181 * have changed. The actual parameter values are available in
2182 * struct wiphy. If returning an error, no value should be changed.
2184 * @set_tx_power: set the transmit power according to the parameters,
2185 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2186 * wdev may be %NULL if power was set for the wiphy, and will
2187 * always be %NULL unless the driver supports per-vif TX power
2188 * (as advertised by the nl80211 feature flag.)
2189 * @get_tx_power: store the current TX power into the dbm variable;
2190 * return 0 if successful
2192 * @set_wds_peer: set the WDS peer for a WDS interface
2194 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2195 * functions to adjust rfkill hw state
2197 * @dump_survey: get site survey information.
2199 * @remain_on_channel: Request the driver to remain awake on the specified
2200 * channel for the specified duration to complete an off-channel
2201 * operation (e.g., public action frame exchange). When the driver is
2202 * ready on the requested channel, it must indicate this with an event
2203 * notification by calling cfg80211_ready_on_channel().
2204 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2205 * This allows the operation to be terminated prior to timeout based on
2206 * the duration value.
2207 * @mgmt_tx: Transmit a management frame.
2208 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2209 * frame on another channel
2211 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2212 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2213 * used by the function, but 0 and 1 must not be touched. Additionally,
2214 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2215 * dump and return to userspace with an error, so be careful. If any data
2216 * was passed in from userspace then the data/len arguments will be present
2217 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2219 * @set_bitrate_mask: set the bitrate mask configuration
2221 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2222 * devices running firmwares capable of generating the (re) association
2223 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2224 * @del_pmksa: Delete a cached PMKID.
2225 * @flush_pmksa: Flush all cached PMKIDs.
2226 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2227 * allows the driver to adjust the dynamic ps timeout value.
2228 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2229 * @set_cqm_txe_config: Configure connection quality monitor TX error
2231 * @sched_scan_start: Tell the driver to start a scheduled scan.
2232 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
2233 * call must stop the scheduled scan and be ready for starting a new one
2234 * before it returns, i.e. @sched_scan_start may be called immediately
2235 * after that again and should not fail in that case. The driver should
2236 * not call cfg80211_sched_scan_stopped() for a requested stop (when this
2237 * method returns 0.)
2239 * @mgmt_frame_register: Notify driver that a management frame type was
2240 * registered. Note that this callback may not sleep, and cannot run
2241 * concurrently with itself.
2243 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2244 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2245 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2246 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2248 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2250 * @set_ringparam: Set tx and rx ring sizes.
2252 * @get_ringparam: Get tx and rx ring current and maximum sizes.
2254 * @tdls_mgmt: Transmit a TDLS management frame.
2255 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2257 * @probe_client: probe an associated client, must return a cookie that it
2258 * later passes to cfg80211_probe_status().
2260 * @set_noack_map: Set the NoAck Map for the TIDs.
2262 * @get_et_sset_count: Ethtool API to get string-set count.
2263 * See @ethtool_ops.get_sset_count
2265 * @get_et_stats: Ethtool API to get a set of u64 stats.
2266 * See @ethtool_ops.get_ethtool_stats
2268 * @get_et_strings: Ethtool API to get a set of strings to describe stats
2269 * and perhaps other supported types of ethtool data-sets.
2270 * See @ethtool_ops.get_strings
2272 * @get_channel: Get the current operating channel for the virtual interface.
2273 * For monitor interfaces, it should return %NULL unless there's a single
2274 * current monitoring channel.
2276 * @start_p2p_device: Start the given P2P device.
2277 * @stop_p2p_device: Stop the given P2P device.
2279 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2280 * Parameters include ACL policy, an array of MAC address of stations
2281 * and the number of MAC addresses. If there is already a list in driver
2282 * this new list replaces the existing one. Driver has to clear its ACL
2283 * when number of MAC addresses entries is passed as 0. Drivers which
2284 * advertise the support for MAC based ACL have to implement this callback.
2286 * @start_radar_detection: Start radar detection in the driver.
2288 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2289 * driver. If the SME is in the driver/firmware, this information can be
2290 * used in building Authentication and Reassociation Request frames.
2292 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2293 * for a given duration (milliseconds). The protocol is provided so the
2294 * driver can take the most appropriate actions.
2295 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2296 * reliability. This operation can not fail.
2297 * @set_coalesce: Set coalesce parameters.
2299 * @channel_switch: initiate channel-switch procedure (with CSA)
2301 * @set_qos_map: Set QoS mapping information to the driver
2303 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2304 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2305 * changes during the lifetime of the BSS.
2307 struct cfg80211_ops
{
2308 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
2309 int (*resume
)(struct wiphy
*wiphy
);
2310 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
2312 struct wireless_dev
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
2314 enum nl80211_iftype type
,
2316 struct vif_params
*params
);
2317 int (*del_virtual_intf
)(struct wiphy
*wiphy
,
2318 struct wireless_dev
*wdev
);
2319 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
2320 struct net_device
*dev
,
2321 enum nl80211_iftype type
, u32
*flags
,
2322 struct vif_params
*params
);
2324 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2325 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2326 struct key_params
*params
);
2327 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2328 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2330 void (*callback
)(void *cookie
, struct key_params
*));
2331 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2332 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
2333 int (*set_default_key
)(struct wiphy
*wiphy
,
2334 struct net_device
*netdev
,
2335 u8 key_index
, bool unicast
, bool multicast
);
2336 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
2337 struct net_device
*netdev
,
2340 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2341 struct cfg80211_ap_settings
*settings
);
2342 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2343 struct cfg80211_beacon_data
*info
);
2344 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2347 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2348 u8
*mac
, struct station_parameters
*params
);
2349 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2351 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2352 u8
*mac
, struct station_parameters
*params
);
2353 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2354 u8
*mac
, struct station_info
*sinfo
);
2355 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2356 int idx
, u8
*mac
, struct station_info
*sinfo
);
2358 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2359 u8
*dst
, u8
*next_hop
);
2360 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2362 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2363 u8
*dst
, u8
*next_hop
);
2364 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2365 u8
*dst
, u8
*next_hop
,
2366 struct mpath_info
*pinfo
);
2367 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2368 int idx
, u8
*dst
, u8
*next_hop
,
2369 struct mpath_info
*pinfo
);
2370 int (*get_mesh_config
)(struct wiphy
*wiphy
,
2371 struct net_device
*dev
,
2372 struct mesh_config
*conf
);
2373 int (*update_mesh_config
)(struct wiphy
*wiphy
,
2374 struct net_device
*dev
, u32 mask
,
2375 const struct mesh_config
*nconf
);
2376 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2377 const struct mesh_config
*conf
,
2378 const struct mesh_setup
*setup
);
2379 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2381 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2382 struct bss_parameters
*params
);
2384 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2385 struct ieee80211_txq_params
*params
);
2387 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
2388 struct net_device
*dev
,
2389 struct ieee80211_channel
*chan
);
2391 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
2392 struct cfg80211_chan_def
*chandef
);
2394 int (*scan
)(struct wiphy
*wiphy
,
2395 struct cfg80211_scan_request
*request
);
2397 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2398 struct cfg80211_auth_request
*req
);
2399 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2400 struct cfg80211_assoc_request
*req
);
2401 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2402 struct cfg80211_deauth_request
*req
);
2403 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2404 struct cfg80211_disassoc_request
*req
);
2406 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2407 struct cfg80211_connect_params
*sme
);
2408 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2411 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2412 struct cfg80211_ibss_params
*params
);
2413 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2415 int (*set_mcast_rate
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2416 int rate
[IEEE80211_NUM_BANDS
]);
2418 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
2420 int (*set_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2421 enum nl80211_tx_power_setting type
, int mbm
);
2422 int (*get_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2425 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2428 void (*rfkill_poll
)(struct wiphy
*wiphy
);
2430 #ifdef CONFIG_NL80211_TESTMODE
2431 int (*testmode_cmd
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2432 void *data
, int len
);
2433 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
2434 struct netlink_callback
*cb
,
2435 void *data
, int len
);
2438 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
2439 struct net_device
*dev
,
2441 const struct cfg80211_bitrate_mask
*mask
);
2443 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2444 int idx
, struct survey_info
*info
);
2446 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2447 struct cfg80211_pmksa
*pmksa
);
2448 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2449 struct cfg80211_pmksa
*pmksa
);
2450 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
2452 int (*remain_on_channel
)(struct wiphy
*wiphy
,
2453 struct wireless_dev
*wdev
,
2454 struct ieee80211_channel
*chan
,
2455 unsigned int duration
,
2457 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
2458 struct wireless_dev
*wdev
,
2461 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2462 struct cfg80211_mgmt_tx_params
*params
,
2464 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
2465 struct wireless_dev
*wdev
,
2468 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2469 bool enabled
, int timeout
);
2471 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
2472 struct net_device
*dev
,
2473 s32 rssi_thold
, u32 rssi_hyst
);
2475 int (*set_cqm_txe_config
)(struct wiphy
*wiphy
,
2476 struct net_device
*dev
,
2477 u32 rate
, u32 pkts
, u32 intvl
);
2479 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
2480 struct wireless_dev
*wdev
,
2481 u16 frame_type
, bool reg
);
2483 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
2484 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
2486 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
2487 void (*get_ringparam
)(struct wiphy
*wiphy
,
2488 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
2490 int (*sched_scan_start
)(struct wiphy
*wiphy
,
2491 struct net_device
*dev
,
2492 struct cfg80211_sched_scan_request
*request
);
2493 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2495 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2496 struct cfg80211_gtk_rekey_data
*data
);
2498 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2499 u8
*peer
, u8 action_code
, u8 dialog_token
,
2500 u16 status_code
, u32 peer_capability
,
2501 const u8
*buf
, size_t len
);
2502 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2503 u8
*peer
, enum nl80211_tdls_operation oper
);
2505 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2506 const u8
*peer
, u64
*cookie
);
2508 int (*set_noack_map
)(struct wiphy
*wiphy
,
2509 struct net_device
*dev
,
2512 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
2513 struct net_device
*dev
, int sset
);
2514 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2515 struct ethtool_stats
*stats
, u64
*data
);
2516 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2517 u32 sset
, u8
*data
);
2519 int (*get_channel
)(struct wiphy
*wiphy
,
2520 struct wireless_dev
*wdev
,
2521 struct cfg80211_chan_def
*chandef
);
2523 int (*start_p2p_device
)(struct wiphy
*wiphy
,
2524 struct wireless_dev
*wdev
);
2525 void (*stop_p2p_device
)(struct wiphy
*wiphy
,
2526 struct wireless_dev
*wdev
);
2528 int (*set_mac_acl
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2529 const struct cfg80211_acl_data
*params
);
2531 int (*start_radar_detection
)(struct wiphy
*wiphy
,
2532 struct net_device
*dev
,
2533 struct cfg80211_chan_def
*chandef
,
2535 int (*update_ft_ies
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2536 struct cfg80211_update_ft_ies_params
*ftie
);
2537 int (*crit_proto_start
)(struct wiphy
*wiphy
,
2538 struct wireless_dev
*wdev
,
2539 enum nl80211_crit_proto_id protocol
,
2541 void (*crit_proto_stop
)(struct wiphy
*wiphy
,
2542 struct wireless_dev
*wdev
);
2543 int (*set_coalesce
)(struct wiphy
*wiphy
,
2544 struct cfg80211_coalesce
*coalesce
);
2546 int (*channel_switch
)(struct wiphy
*wiphy
,
2547 struct net_device
*dev
,
2548 struct cfg80211_csa_settings
*params
);
2550 int (*set_qos_map
)(struct wiphy
*wiphy
,
2551 struct net_device
*dev
,
2552 struct cfg80211_qos_map
*qos_map
);
2554 int (*set_ap_chanwidth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2555 struct cfg80211_chan_def
*chandef
);
2559 * wireless hardware and networking interfaces structures
2560 * and registration/helper functions
2564 * enum wiphy_flags - wiphy capability flags
2566 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2568 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2569 * by default -- this flag will be set depending on the kernel's default
2570 * on wiphy_new(), but can be changed by the driver if it has a good
2571 * reason to override the default
2572 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2573 * on a VLAN interface)
2574 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2575 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2576 * control port protocol ethertype. The device also honours the
2577 * control_port_no_encrypt flag.
2578 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2579 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2580 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2581 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2582 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2584 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2585 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2586 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2587 * link setup/discovery operations internally. Setup, discovery and
2588 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2589 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2590 * used for asking the driver/firmware to perform a TDLS operation.
2591 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2592 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2593 * when there are virtual interfaces in AP mode by calling
2594 * cfg80211_report_obss_beacon().
2595 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2596 * responds to probe-requests in hardware.
2597 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2598 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2599 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
2600 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
2601 * beaconing mode (AP, IBSS, Mesh, ...).
2607 WIPHY_FLAG_NETNS_OK
= BIT(3),
2608 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
2609 WIPHY_FLAG_4ADDR_AP
= BIT(5),
2610 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
2611 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
2612 WIPHY_FLAG_IBSS_RSN
= BIT(8),
2613 WIPHY_FLAG_MESH_AUTH
= BIT(10),
2614 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
2615 /* use hole at 12 */
2616 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
2617 WIPHY_FLAG_AP_UAPSD
= BIT(14),
2618 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
2619 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
2620 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
2621 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
2622 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
2623 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
2624 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
2625 WIPHY_FLAG_SUPPORTS_5_10_MHZ
= BIT(22),
2626 WIPHY_FLAG_HAS_CHANNEL_SWITCH
= BIT(23),
2630 * struct ieee80211_iface_limit - limit on certain interface types
2631 * @max: maximum number of interfaces of these types
2632 * @types: interface types (bits)
2634 struct ieee80211_iface_limit
{
2640 * struct ieee80211_iface_combination - possible interface combination
2641 * @limits: limits for the given interface types
2642 * @n_limits: number of limitations
2643 * @num_different_channels: can use up to this many different channels
2644 * @max_interfaces: maximum number of interfaces in total allowed in this
2646 * @beacon_int_infra_match: In this combination, the beacon intervals
2647 * between infrastructure and AP types must match. This is required
2648 * only in special cases.
2649 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2650 * @radar_detect_regions: bitmap of regions supported for radar detection
2652 * With this structure the driver can describe which interface
2653 * combinations it supports concurrently.
2657 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2659 * struct ieee80211_iface_limit limits1[] = {
2660 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2661 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2663 * struct ieee80211_iface_combination combination1 = {
2664 * .limits = limits1,
2665 * .n_limits = ARRAY_SIZE(limits1),
2666 * .max_interfaces = 2,
2667 * .beacon_int_infra_match = true,
2671 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2673 * struct ieee80211_iface_limit limits2[] = {
2674 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2675 * BIT(NL80211_IFTYPE_P2P_GO), },
2677 * struct ieee80211_iface_combination combination2 = {
2678 * .limits = limits2,
2679 * .n_limits = ARRAY_SIZE(limits2),
2680 * .max_interfaces = 8,
2681 * .num_different_channels = 1,
2685 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2687 * This allows for an infrastructure connection and three P2P connections.
2689 * struct ieee80211_iface_limit limits3[] = {
2690 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2691 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2692 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2694 * struct ieee80211_iface_combination combination3 = {
2695 * .limits = limits3,
2696 * .n_limits = ARRAY_SIZE(limits3),
2697 * .max_interfaces = 4,
2698 * .num_different_channels = 2,
2701 struct ieee80211_iface_combination
{
2702 const struct ieee80211_iface_limit
*limits
;
2703 u32 num_different_channels
;
2706 bool beacon_int_infra_match
;
2707 u8 radar_detect_widths
;
2708 u8 radar_detect_regions
;
2711 struct ieee80211_txrx_stypes
{
2716 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2717 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2718 * trigger that keeps the device operating as-is and
2719 * wakes up the host on any activity, for example a
2720 * received packet that passed filtering; note that the
2721 * packet should be preserved in that case
2722 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2724 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2725 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2726 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2727 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2728 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2729 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2731 enum wiphy_wowlan_support_flags
{
2732 WIPHY_WOWLAN_ANY
= BIT(0),
2733 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
2734 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
2735 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
2736 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
2737 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
2738 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
2739 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2742 struct wiphy_wowlan_tcp_support
{
2743 const struct nl80211_wowlan_tcp_data_token_feature
*tok
;
2744 u32 data_payload_max
;
2745 u32 data_interval_max
;
2746 u32 wake_payload_max
;
2751 * struct wiphy_wowlan_support - WoWLAN support data
2752 * @flags: see &enum wiphy_wowlan_support_flags
2753 * @n_patterns: number of supported wakeup patterns
2754 * (see nl80211.h for the pattern definition)
2755 * @pattern_max_len: maximum length of each pattern
2756 * @pattern_min_len: minimum length of each pattern
2757 * @max_pkt_offset: maximum Rx packet offset
2758 * @tcp: TCP wakeup support information
2760 struct wiphy_wowlan_support
{
2763 int pattern_max_len
;
2764 int pattern_min_len
;
2766 const struct wiphy_wowlan_tcp_support
*tcp
;
2770 * struct wiphy_coalesce_support - coalesce support data
2771 * @n_rules: maximum number of coalesce rules
2772 * @max_delay: maximum supported coalescing delay in msecs
2773 * @n_patterns: number of supported patterns in a rule
2774 * (see nl80211.h for the pattern definition)
2775 * @pattern_max_len: maximum length of each pattern
2776 * @pattern_min_len: minimum length of each pattern
2777 * @max_pkt_offset: maximum Rx packet offset
2779 struct wiphy_coalesce_support
{
2783 int pattern_max_len
;
2784 int pattern_min_len
;
2789 * enum wiphy_vendor_command_flags - validation flags for vendor commands
2790 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
2791 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
2792 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
2793 * (must be combined with %_WDEV or %_NETDEV)
2795 enum wiphy_vendor_command_flags
{
2796 WIPHY_VENDOR_CMD_NEED_WDEV
= BIT(0),
2797 WIPHY_VENDOR_CMD_NEED_NETDEV
= BIT(1),
2798 WIPHY_VENDOR_CMD_NEED_RUNNING
= BIT(2),
2802 * struct wiphy_vendor_command - vendor command definition
2803 * @info: vendor command identifying information, as used in nl80211
2804 * @flags: flags, see &enum wiphy_vendor_command_flags
2805 * @doit: callback for the operation, note that wdev is %NULL if the
2806 * flags didn't ask for a wdev and non-%NULL otherwise; the data
2807 * pointer may be %NULL if userspace provided no data at all
2809 struct wiphy_vendor_command
{
2810 struct nl80211_vendor_cmd_info info
;
2812 int (*doit
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2813 const void *data
, int data_len
);
2817 * struct wiphy - wireless hardware description
2818 * @reg_notifier: the driver's regulatory notification callback,
2819 * note that if your driver uses wiphy_apply_custom_regulatory()
2820 * the reg_notifier's request can be passed as NULL
2821 * @regd: the driver's regulatory domain, if one was requested via
2822 * the regulatory_hint() API. This can be used by the driver
2823 * on the reg_notifier() if it chooses to ignore future
2824 * regulatory domain changes caused by other drivers.
2825 * @signal_type: signal type reported in &struct cfg80211_bss.
2826 * @cipher_suites: supported cipher suites
2827 * @n_cipher_suites: number of supported cipher suites
2828 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2829 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2830 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2831 * -1 = fragmentation disabled, only odd values >= 256 used
2832 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2833 * @_net: the network namespace this wiphy currently lives in
2834 * @perm_addr: permanent MAC address of this device
2835 * @addr_mask: If the device supports multiple MAC addresses by masking,
2836 * set this to a mask with variable bits set to 1, e.g. if the last
2837 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
2838 * variable bits shall be determined by the interfaces added, with
2839 * interfaces not matching the mask being rejected to be brought up.
2840 * @n_addresses: number of addresses in @addresses.
2841 * @addresses: If the device has more than one address, set this pointer
2842 * to a list of addresses (6 bytes each). The first one will be used
2843 * by default for perm_addr. In this case, the mask should be set to
2844 * all-zeroes. In this case it is assumed that the device can handle
2845 * the same number of arbitrary MAC addresses.
2846 * @registered: protects ->resume and ->suspend sysfs callbacks against
2847 * unregister hardware
2848 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2849 * automatically on wiphy renames
2850 * @dev: (virtual) struct device for this wiphy
2851 * @registered: helps synchronize suspend/resume with wiphy unregister
2852 * @wext: wireless extension handlers
2853 * @priv: driver private data (sized according to wiphy_new() parameter)
2854 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2855 * must be set by driver
2856 * @iface_combinations: Valid interface combinations array, should not
2857 * list single interface types.
2858 * @n_iface_combinations: number of entries in @iface_combinations array.
2859 * @software_iftypes: bitmask of software interface types, these are not
2860 * subject to any restrictions since they are purely managed in SW.
2861 * @flags: wiphy flags, see &enum wiphy_flags
2862 * @regulatory_flags: wiphy regulatory flags, see
2863 * &enum ieee80211_regulatory_flags
2864 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2865 * @bss_priv_size: each BSS struct has private data allocated with it,
2866 * this variable determines its size
2867 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2869 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2870 * for in any given scheduled scan
2871 * @max_match_sets: maximum number of match sets the device can handle
2872 * when performing a scheduled scan, 0 if filtering is not
2874 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2875 * add to probe request frames transmitted during a scan, must not
2876 * include fixed IEs like supported rates
2877 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2879 * @coverage_class: current coverage class
2880 * @fw_version: firmware version for ethtool reporting
2881 * @hw_version: hardware version for ethtool reporting
2882 * @max_num_pmkids: maximum number of PMKIDs supported by device
2883 * @privid: a pointer that drivers can use to identify if an arbitrary
2884 * wiphy is theirs, e.g. in global notifiers
2885 * @bands: information about bands/channels supported by this device
2887 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2888 * transmitted through nl80211, points to an array indexed by interface
2891 * @available_antennas_tx: bitmap of antennas which are available to be
2892 * configured as TX antennas. Antenna configuration commands will be
2893 * rejected unless this or @available_antennas_rx is set.
2895 * @available_antennas_rx: bitmap of antennas which are available to be
2896 * configured as RX antennas. Antenna configuration commands will be
2897 * rejected unless this or @available_antennas_tx is set.
2899 * @probe_resp_offload:
2900 * Bitmap of supported protocols for probe response offloading.
2901 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2902 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2904 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2905 * may request, if implemented.
2907 * @wowlan: WoWLAN support information
2908 * @wowlan_config: current WoWLAN configuration; this should usually not be
2909 * used since access to it is necessarily racy, use the parameter passed
2910 * to the suspend() operation instead.
2912 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2913 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2914 * If null, then none can be over-ridden.
2915 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
2916 * If null, then none can be over-ridden.
2918 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
2921 * @extended_capabilities: extended capabilities supported by the driver,
2922 * additional capabilities might be supported by userspace; these are
2923 * the 802.11 extended capabilities ("Extended Capabilities element")
2924 * and are in the same format as in the information element. See
2925 * 802.11-2012 8.4.2.29 for the defined fields.
2926 * @extended_capabilities_mask: mask of the valid values
2927 * @extended_capabilities_len: length of the extended capabilities
2928 * @coalesce: packet coalescing support information
2930 * @vendor_commands: array of vendor commands supported by the hardware
2931 * @n_vendor_commands: number of vendor commands
2932 * @vendor_events: array of vendor events supported by the hardware
2933 * @n_vendor_events: number of vendor events
2935 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
2936 * (including P2P GO) or 0 to indicate no such limit is advertised. The
2937 * driver is allowed to advertise a theoretical limit that it can reach in
2938 * some cases, but may not always reach.
2940 * @max_num_csa_counters: Number of supported csa_counters in beacons
2941 * and probe responses. This value should be set if the driver
2942 * wishes to limit the number of csa counters. Default (0) means
2946 /* assign these fields before you register the wiphy */
2948 /* permanent MAC address(es) */
2949 u8 perm_addr
[ETH_ALEN
];
2950 u8 addr_mask
[ETH_ALEN
];
2952 struct mac_address
*addresses
;
2954 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2956 const struct ieee80211_iface_combination
*iface_combinations
;
2957 int n_iface_combinations
;
2958 u16 software_iftypes
;
2962 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2963 u16 interface_modes
;
2965 u16 max_acl_mac_addrs
;
2967 u32 flags
, regulatory_flags
, features
;
2971 enum cfg80211_signal_type signal_type
;
2975 u8 max_sched_scan_ssids
;
2977 u16 max_scan_ie_len
;
2978 u16 max_sched_scan_ie_len
;
2980 int n_cipher_suites
;
2981 const u32
*cipher_suites
;
2989 char fw_version
[ETHTOOL_FWVERS_LEN
];
2993 const struct wiphy_wowlan_support
*wowlan
;
2994 struct cfg80211_wowlan
*wowlan_config
;
2997 u16 max_remain_on_channel_duration
;
3001 u32 available_antennas_tx
;
3002 u32 available_antennas_rx
;
3005 * Bitmap of supported protocols for probe response offloading
3006 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3007 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3009 u32 probe_resp_offload
;
3011 const u8
*extended_capabilities
, *extended_capabilities_mask
;
3012 u8 extended_capabilities_len
;
3014 /* If multiple wiphys are registered and you're handed e.g.
3015 * a regular netdev with assigned ieee80211_ptr, you won't
3016 * know whether it points to a wiphy your driver has registered
3017 * or not. Assign this to something global to your driver to
3018 * help determine whether you own this wiphy or not. */
3021 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
3023 /* Lets us get back the wiphy on the callback */
3024 void (*reg_notifier
)(struct wiphy
*wiphy
,
3025 struct regulatory_request
*request
);
3027 /* fields below are read-only, assigned by cfg80211 */
3029 const struct ieee80211_regdomain __rcu
*regd
;
3031 /* the item in /sys/class/ieee80211/ points to this,
3032 * you need use set_wiphy_dev() (see below) */
3035 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3038 /* dir in debugfs: ieee80211/<wiphyname> */
3039 struct dentry
*debugfsdir
;
3041 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
3042 const struct ieee80211_vht_cap
*vht_capa_mod_mask
;
3044 #ifdef CONFIG_NET_NS
3045 /* the network namespace this phy lives in currently */
3049 #ifdef CONFIG_CFG80211_WEXT
3050 const struct iw_handler_def
*wext
;
3053 const struct wiphy_coalesce_support
*coalesce
;
3055 const struct wiphy_vendor_command
*vendor_commands
;
3056 const struct nl80211_vendor_cmd_info
*vendor_events
;
3057 int n_vendor_commands
, n_vendor_events
;
3059 u16 max_ap_assoc_sta
;
3061 u8 max_num_csa_counters
;
3063 char priv
[0] __aligned(NETDEV_ALIGN
);
3066 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
3068 return read_pnet(&wiphy
->_net
);
3071 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
3073 write_pnet(&wiphy
->_net
, net
);
3077 * wiphy_priv - return priv from wiphy
3079 * @wiphy: the wiphy whose priv pointer to return
3080 * Return: The priv of @wiphy.
3082 static inline void *wiphy_priv(struct wiphy
*wiphy
)
3085 return &wiphy
->priv
;
3089 * priv_to_wiphy - return the wiphy containing the priv
3091 * @priv: a pointer previously returned by wiphy_priv
3092 * Return: The wiphy of @priv.
3094 static inline struct wiphy
*priv_to_wiphy(void *priv
)
3097 return container_of(priv
, struct wiphy
, priv
);
3101 * set_wiphy_dev - set device pointer for wiphy
3103 * @wiphy: The wiphy whose device to bind
3104 * @dev: The device to parent it to
3106 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
3108 wiphy
->dev
.parent
= dev
;
3112 * wiphy_dev - get wiphy dev pointer
3114 * @wiphy: The wiphy whose device struct to look up
3115 * Return: The dev of @wiphy.
3117 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
3119 return wiphy
->dev
.parent
;
3123 * wiphy_name - get wiphy name
3125 * @wiphy: The wiphy whose name to return
3126 * Return: The name of @wiphy.
3128 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
3130 return dev_name(&wiphy
->dev
);
3134 * wiphy_new - create a new wiphy for use with cfg80211
3136 * @ops: The configuration operations for this device
3137 * @sizeof_priv: The size of the private area to allocate
3139 * Create a new wiphy and associate the given operations with it.
3140 * @sizeof_priv bytes are allocated for private use.
3142 * Return: A pointer to the new wiphy. This pointer must be
3143 * assigned to each netdev's ieee80211_ptr for proper operation.
3145 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
3148 * wiphy_register - register a wiphy with cfg80211
3150 * @wiphy: The wiphy to register.
3152 * Return: A non-negative wiphy index or a negative error code.
3154 int wiphy_register(struct wiphy
*wiphy
);
3157 * wiphy_unregister - deregister a wiphy from cfg80211
3159 * @wiphy: The wiphy to unregister.
3161 * After this call, no more requests can be made with this priv
3162 * pointer, but the call may sleep to wait for an outstanding
3163 * request that is being handled.
3165 void wiphy_unregister(struct wiphy
*wiphy
);
3168 * wiphy_free - free wiphy
3170 * @wiphy: The wiphy to free
3172 void wiphy_free(struct wiphy
*wiphy
);
3174 /* internal structs */
3175 struct cfg80211_conn
;
3176 struct cfg80211_internal_bss
;
3177 struct cfg80211_cached_keys
;
3180 * struct wireless_dev - wireless device state
3182 * For netdevs, this structure must be allocated by the driver
3183 * that uses the ieee80211_ptr field in struct net_device (this
3184 * is intentional so it can be allocated along with the netdev.)
3185 * It need not be registered then as netdev registration will
3186 * be intercepted by cfg80211 to see the new wireless device.
3188 * For non-netdev uses, it must also be allocated by the driver
3189 * in response to the cfg80211 callbacks that require it, as
3190 * there's no netdev registration in that case it may not be
3191 * allocated outside of callback operations that return it.
3193 * @wiphy: pointer to hardware description
3194 * @iftype: interface type
3195 * @list: (private) Used to collect the interfaces
3196 * @netdev: (private) Used to reference back to the netdev, may be %NULL
3197 * @identifier: (private) Identifier used in nl80211 to identify this
3198 * wireless device if it has no netdev
3199 * @current_bss: (private) Used by the internal configuration code
3200 * @chandef: (private) Used by the internal configuration code to track
3201 * the user-set channel definition.
3202 * @preset_chandef: (private) Used by the internal configuration code to
3203 * track the channel to be used for AP later
3204 * @bssid: (private) Used by the internal configuration code
3205 * @ssid: (private) Used by the internal configuration code
3206 * @ssid_len: (private) Used by the internal configuration code
3207 * @mesh_id_len: (private) Used by the internal configuration code
3208 * @mesh_id_up_len: (private) Used by the internal configuration code
3209 * @wext: (private) Used by the internal wireless extensions compat code
3210 * @use_4addr: indicates 4addr mode is used on this interface, must be
3211 * set by driver (if supported) on add_interface BEFORE registering the
3212 * netdev and may otherwise be used by driver read-only, will be update
3213 * by cfg80211 on change_interface
3214 * @mgmt_registrations: list of registrations for management frames
3215 * @mgmt_registrations_lock: lock for the list
3216 * @mtx: mutex used to lock data in this struct, may be used by drivers
3217 * and some API functions require it held
3218 * @beacon_interval: beacon interval used on this device for transmitting
3219 * beacons, 0 when not valid
3220 * @address: The address for this device, valid only if @netdev is %NULL
3221 * @p2p_started: true if this is a P2P Device that has been started
3222 * @cac_started: true if DFS channel availability check has been started
3223 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
3224 * @cac_time_ms: CAC time in ms
3225 * @ps: powersave mode is enabled
3226 * @ps_timeout: dynamic powersave timeout
3227 * @ap_unexpected_nlportid: (private) netlink port ID of application
3228 * registered for unexpected class 3 frames (AP mode)
3229 * @conn: (private) cfg80211 software SME connection state machine data
3230 * @connect_keys: (private) keys to set after connection is established
3231 * @ibss_fixed: (private) IBSS is using fixed BSSID
3232 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
3233 * @event_list: (private) list for internal event processing
3234 * @event_lock: (private) lock for event list
3235 * @owner_nlportid: (private) owner socket port ID
3237 struct wireless_dev
{
3238 struct wiphy
*wiphy
;
3239 enum nl80211_iftype iftype
;
3241 /* the remainder of this struct should be private to cfg80211 */
3242 struct list_head list
;
3243 struct net_device
*netdev
;
3247 struct list_head mgmt_registrations
;
3248 spinlock_t mgmt_registrations_lock
;
3252 bool use_4addr
, p2p_started
;
3254 u8 address
[ETH_ALEN
] __aligned(sizeof(u16
));
3256 /* currently used for IBSS and SME - might be rearranged later */
3257 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3258 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
3259 struct cfg80211_conn
*conn
;
3260 struct cfg80211_cached_keys
*connect_keys
;
3262 struct list_head event_list
;
3263 spinlock_t event_lock
;
3265 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
3266 struct cfg80211_chan_def preset_chandef
;
3267 struct cfg80211_chan_def chandef
;
3270 bool ibss_dfs_possible
;
3275 int beacon_interval
;
3277 u32 ap_unexpected_nlportid
;
3280 unsigned long cac_start_time
;
3281 unsigned int cac_time_ms
;
3285 #ifdef CONFIG_CFG80211_WEXT
3288 struct cfg80211_ibss_params ibss
;
3289 struct cfg80211_connect_params connect
;
3290 struct cfg80211_cached_keys
*keys
;
3293 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
3294 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3295 s8 default_key
, default_mgmt_key
;
3296 bool prev_bssid_valid
;
3301 static inline u8
*wdev_address(struct wireless_dev
*wdev
)
3304 return wdev
->netdev
->dev_addr
;
3305 return wdev
->address
;
3309 * wdev_priv - return wiphy priv from wireless_dev
3311 * @wdev: The wireless device whose wiphy's priv pointer to return
3312 * Return: The wiphy priv of @wdev.
3314 static inline void *wdev_priv(struct wireless_dev
*wdev
)
3317 return wiphy_priv(wdev
->wiphy
);
3321 * DOC: Utility functions
3323 * cfg80211 offers a number of utility functions that can be useful.
3327 * ieee80211_channel_to_frequency - convert channel number to frequency
3328 * @chan: channel number
3329 * @band: band, necessary due to channel number overlap
3330 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
3332 int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
3335 * ieee80211_frequency_to_channel - convert frequency to channel number
3336 * @freq: center frequency
3337 * Return: The corresponding channel, or 0 if the conversion failed.
3339 int ieee80211_frequency_to_channel(int freq
);
3342 * Name indirection necessary because the ieee80211 code also has
3343 * a function named "ieee80211_get_channel", so if you include
3344 * cfg80211's header file you get cfg80211's version, if you try
3345 * to include both header files you'll (rightfully!) get a symbol
3348 struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
3351 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
3352 * @wiphy: the struct wiphy to get the channel for
3353 * @freq: the center frequency of the channel
3354 * Return: The channel struct from @wiphy at @freq.
3356 static inline struct ieee80211_channel
*
3357 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
3359 return __ieee80211_get_channel(wiphy
, freq
);
3363 * ieee80211_get_response_rate - get basic rate for a given rate
3365 * @sband: the band to look for rates in
3366 * @basic_rates: bitmap of basic rates
3367 * @bitrate: the bitrate for which to find the basic rate
3369 * Return: The basic rate corresponding to a given bitrate, that
3370 * is the next lower bitrate contained in the basic rate map,
3371 * which is, for this function, given as a bitmap of indices of
3372 * rates in the band's bitrate table.
3374 struct ieee80211_rate
*
3375 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
3376 u32 basic_rates
, int bitrate
);
3379 * ieee80211_mandatory_rates - get mandatory rates for a given band
3380 * @sband: the band to look for rates in
3381 * @scan_width: width of the control channel
3383 * This function returns a bitmap of the mandatory rates for the given
3384 * band, bits are set according to the rate position in the bitrates array.
3386 u32
ieee80211_mandatory_rates(struct ieee80211_supported_band
*sband
,
3387 enum nl80211_bss_scan_width scan_width
);
3390 * Radiotap parsing functions -- for controlled injection support
3392 * Implemented in net/wireless/radiotap.c
3393 * Documentation in Documentation/networking/radiotap-headers.txt
3396 struct radiotap_align_size
{
3397 uint8_t align
:4, size
:4;
3400 struct ieee80211_radiotap_namespace
{
3401 const struct radiotap_align_size
*align_size
;
3407 struct ieee80211_radiotap_vendor_namespaces
{
3408 const struct ieee80211_radiotap_namespace
*ns
;
3413 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3414 * @this_arg_index: index of current arg, valid after each successful call
3415 * to ieee80211_radiotap_iterator_next()
3416 * @this_arg: pointer to current radiotap arg; it is valid after each
3417 * call to ieee80211_radiotap_iterator_next() but also after
3418 * ieee80211_radiotap_iterator_init() where it will point to
3419 * the beginning of the actual data portion
3420 * @this_arg_size: length of the current arg, for convenience
3421 * @current_namespace: pointer to the current namespace definition
3422 * (or internally %NULL if the current namespace is unknown)
3423 * @is_radiotap_ns: indicates whether the current namespace is the default
3424 * radiotap namespace or not
3426 * @_rtheader: pointer to the radiotap header we are walking through
3427 * @_max_length: length of radiotap header in cpu byte ordering
3428 * @_arg_index: next argument index
3429 * @_arg: next argument pointer
3430 * @_next_bitmap: internal pointer to next present u32
3431 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3432 * @_vns: vendor namespace definitions
3433 * @_next_ns_data: beginning of the next namespace's data
3434 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
3437 * Describes the radiotap parser state. Fields prefixed with an underscore
3438 * must not be used by users of the parser, only by the parser internally.
3441 struct ieee80211_radiotap_iterator
{
3442 struct ieee80211_radiotap_header
*_rtheader
;
3443 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
3444 const struct ieee80211_radiotap_namespace
*current_namespace
;
3446 unsigned char *_arg
, *_next_ns_data
;
3447 __le32
*_next_bitmap
;
3449 unsigned char *this_arg
;
3457 uint32_t _bitmap_shifter
;
3462 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator
*iterator
,
3463 struct ieee80211_radiotap_header
*radiotap_header
,
3465 const struct ieee80211_radiotap_vendor_namespaces
*vns
);
3468 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator
*iterator
);
3471 extern const unsigned char rfc1042_header
[6];
3472 extern const unsigned char bridge_tunnel_header
[6];
3475 * ieee80211_get_hdrlen_from_skb - get header length from data
3479 * Given an skb with a raw 802.11 header at the data pointer this function
3480 * returns the 802.11 header length.
3482 * Return: The 802.11 header length in bytes (not including encryption
3483 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
3486 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
3489 * ieee80211_hdrlen - get header length in bytes from frame control
3490 * @fc: frame control field in little-endian format
3491 * Return: The header length in bytes.
3493 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
3496 * ieee80211_get_mesh_hdrlen - get mesh extension header length
3497 * @meshhdr: the mesh extension header, only the flags field
3498 * (first byte) will be accessed
3499 * Return: The length of the extension header, which is always at
3500 * least 6 bytes and at most 18 if address 5 and 6 are present.
3502 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr
*meshhdr
);
3505 * DOC: Data path helpers
3507 * In addition to generic utilities, cfg80211 also offers
3508 * functions that help implement the data path for devices
3509 * that do not do the 802.11/802.3 conversion on the device.
3513 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
3514 * @skb: the 802.11 data frame
3515 * @addr: the device MAC address
3516 * @iftype: the virtual interface type
3517 * Return: 0 on success. Non-zero on error.
3519 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
3520 enum nl80211_iftype iftype
);
3523 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
3524 * @skb: the 802.3 frame
3525 * @addr: the device MAC address
3526 * @iftype: the virtual interface type
3527 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
3528 * @qos: build 802.11 QoS data frame
3529 * Return: 0 on success, or a negative error code.
3531 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
3532 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
3535 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
3537 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
3538 * 802.3 frames. The @list will be empty if the decode fails. The
3539 * @skb is consumed after the function returns.
3541 * @skb: The input IEEE 802.11n A-MSDU frame.
3542 * @list: The output list of 802.3 frames. It must be allocated and
3543 * initialized by by the caller.
3544 * @addr: The device MAC address.
3545 * @iftype: The device interface type.
3546 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
3547 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
3549 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
3550 const u8
*addr
, enum nl80211_iftype iftype
,
3551 const unsigned int extra_headroom
,
3552 bool has_80211_header
);
3555 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
3556 * @skb: the data frame
3557 * @qos_map: Interworking QoS mapping or %NULL if not in use
3558 * Return: The 802.1p/1d tag.
3560 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
,
3561 struct cfg80211_qos_map
*qos_map
);
3564 * cfg80211_find_ie - find information element in data
3567 * @ies: data consisting of IEs
3568 * @len: length of data
3570 * Return: %NULL if the element ID could not be found or if
3571 * the element is invalid (claims to be longer than the given
3572 * data), or a pointer to the first byte of the requested
3573 * element, that is the byte containing the element ID.
3575 * Note: There are no checks on the element length other than
3576 * having to fit into the given data.
3578 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
3581 * cfg80211_find_vendor_ie - find vendor specific information element in data
3584 * @oui_type: vendor-specific OUI type
3585 * @ies: data consisting of IEs
3586 * @len: length of data
3588 * Return: %NULL if the vendor specific element ID could not be found or if the
3589 * element is invalid (claims to be longer than the given data), or a pointer to
3590 * the first byte of the requested element, that is the byte containing the
3593 * Note: There are no checks on the element length other than having to fit into
3596 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
3597 const u8
*ies
, int len
);
3600 * DOC: Regulatory enforcement infrastructure
3606 * regulatory_hint - driver hint to the wireless core a regulatory domain
3607 * @wiphy: the wireless device giving the hint (used only for reporting
3609 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3610 * should be in. If @rd is set this should be NULL. Note that if you
3611 * set this to NULL you should still set rd->alpha2 to some accepted
3614 * Wireless drivers can use this function to hint to the wireless core
3615 * what it believes should be the current regulatory domain by
3616 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3617 * domain should be in or by providing a completely build regulatory domain.
3618 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3619 * for a regulatory domain structure for the respective country.
3621 * The wiphy must have been registered to cfg80211 prior to this call.
3622 * For cfg80211 drivers this means you must first use wiphy_register(),
3623 * for mac80211 drivers you must first use ieee80211_register_hw().
3625 * Drivers should check the return value, its possible you can get
3628 * Return: 0 on success. -ENOMEM.
3630 int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
3633 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3634 * @wiphy: the wireless device we want to process the regulatory domain on
3635 * @regd: the custom regulatory domain to use for this wiphy
3637 * Drivers can sometimes have custom regulatory domains which do not apply
3638 * to a specific country. Drivers can use this to apply such custom regulatory
3639 * domains. This routine must be called prior to wiphy registration. The
3640 * custom regulatory domain will be trusted completely and as such previous
3641 * default channel settings will be disregarded. If no rule is found for a
3642 * channel on the regulatory domain the channel will be disabled.
3643 * Drivers using this for a wiphy should also set the wiphy flag
3644 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
3645 * that called this helper.
3647 void wiphy_apply_custom_regulatory(struct wiphy
*wiphy
,
3648 const struct ieee80211_regdomain
*regd
);
3651 * freq_reg_info - get regulatory information for the given frequency
3652 * @wiphy: the wiphy for which we want to process this rule for
3653 * @center_freq: Frequency in KHz for which we want regulatory information for
3655 * Use this function to get the regulatory rule for a specific frequency on
3656 * a given wireless device. If the device has a specific regulatory domain
3657 * it wants to follow we respect that unless a country IE has been received
3658 * and processed already.
3660 * Return: A valid pointer, or, when an error occurs, for example if no rule
3661 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3662 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3663 * value will be -ERANGE if we determine the given center_freq does not even
3664 * have a regulatory rule for a frequency range in the center_freq's band.
3665 * See freq_in_rule_band() for our current definition of a band -- this is
3666 * purely subjective and right now it's 802.11 specific.
3668 const struct ieee80211_reg_rule
*freq_reg_info(struct wiphy
*wiphy
,
3672 * reg_initiator_name - map regulatory request initiator enum to name
3673 * @initiator: the regulatory request initiator
3675 * You can use this to map the regulatory request initiator enum to a
3676 * proper string representation.
3678 const char *reg_initiator_name(enum nl80211_reg_initiator initiator
);
3681 * callbacks for asynchronous cfg80211 methods, notification
3682 * functions and BSS handling helpers
3686 * cfg80211_scan_done - notify that scan finished
3688 * @request: the corresponding scan request
3689 * @aborted: set to true if the scan was aborted for any reason,
3690 * userspace will be notified of that
3692 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
3695 * cfg80211_sched_scan_results - notify that new scan results are available
3697 * @wiphy: the wiphy which got scheduled scan results
3699 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
3702 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3704 * @wiphy: the wiphy on which the scheduled scan stopped
3706 * The driver can call this function to inform cfg80211 that the
3707 * scheduled scan had to be stopped, for whatever reason. The driver
3708 * is then called back via the sched_scan_stop operation when done.
3710 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
3713 * cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame
3715 * @wiphy: the wiphy reporting the BSS
3716 * @rx_channel: The channel the frame was received on
3717 * @scan_width: width of the control channel
3718 * @mgmt: the management frame (probe response or beacon)
3719 * @len: length of the management frame
3720 * @signal: the signal strength, type depends on the wiphy's signal_type
3721 * @gfp: context flags
3723 * This informs cfg80211 that BSS information was found and
3724 * the BSS should be updated/added.
3726 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3727 * Or %NULL on error.
3729 struct cfg80211_bss
* __must_check
3730 cfg80211_inform_bss_width_frame(struct wiphy
*wiphy
,
3731 struct ieee80211_channel
*rx_channel
,
3732 enum nl80211_bss_scan_width scan_width
,
3733 struct ieee80211_mgmt
*mgmt
, size_t len
,
3734 s32 signal
, gfp_t gfp
);
3736 static inline struct cfg80211_bss
* __must_check
3737 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
3738 struct ieee80211_channel
*rx_channel
,
3739 struct ieee80211_mgmt
*mgmt
, size_t len
,
3740 s32 signal
, gfp_t gfp
)
3742 return cfg80211_inform_bss_width_frame(wiphy
, rx_channel
,
3743 NL80211_BSS_CHAN_WIDTH_20
,
3744 mgmt
, len
, signal
, gfp
);
3748 * cfg80211_inform_bss - inform cfg80211 of a new BSS
3750 * @wiphy: the wiphy reporting the BSS
3751 * @rx_channel: The channel the frame was received on
3752 * @scan_width: width of the control channel
3753 * @bssid: the BSSID of the BSS
3754 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3755 * @capability: the capability field sent by the peer
3756 * @beacon_interval: the beacon interval announced by the peer
3757 * @ie: additional IEs sent by the peer
3758 * @ielen: length of the additional IEs
3759 * @signal: the signal strength, type depends on the wiphy's signal_type
3760 * @gfp: context flags
3762 * This informs cfg80211 that BSS information was found and
3763 * the BSS should be updated/added.
3765 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3766 * Or %NULL on error.
3768 struct cfg80211_bss
* __must_check
3769 cfg80211_inform_bss_width(struct wiphy
*wiphy
,
3770 struct ieee80211_channel
*rx_channel
,
3771 enum nl80211_bss_scan_width scan_width
,
3772 const u8
*bssid
, u64 tsf
, u16 capability
,
3773 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3774 s32 signal
, gfp_t gfp
);
3776 static inline struct cfg80211_bss
* __must_check
3777 cfg80211_inform_bss(struct wiphy
*wiphy
,
3778 struct ieee80211_channel
*rx_channel
,
3779 const u8
*bssid
, u64 tsf
, u16 capability
,
3780 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3781 s32 signal
, gfp_t gfp
)
3783 return cfg80211_inform_bss_width(wiphy
, rx_channel
,
3784 NL80211_BSS_CHAN_WIDTH_20
,
3785 bssid
, tsf
, capability
,
3786 beacon_interval
, ie
, ielen
, signal
,
3790 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
3791 struct ieee80211_channel
*channel
,
3793 const u8
*ssid
, size_t ssid_len
,
3794 u16 capa_mask
, u16 capa_val
);
3795 static inline struct cfg80211_bss
*
3796 cfg80211_get_ibss(struct wiphy
*wiphy
,
3797 struct ieee80211_channel
*channel
,
3798 const u8
*ssid
, size_t ssid_len
)
3800 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
3801 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
3805 * cfg80211_ref_bss - reference BSS struct
3806 * @wiphy: the wiphy this BSS struct belongs to
3807 * @bss: the BSS struct to reference
3809 * Increments the refcount of the given BSS struct.
3811 void cfg80211_ref_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3814 * cfg80211_put_bss - unref BSS struct
3815 * @wiphy: the wiphy this BSS struct belongs to
3816 * @bss: the BSS struct
3818 * Decrements the refcount of the given BSS struct.
3820 void cfg80211_put_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3823 * cfg80211_unlink_bss - unlink BSS from internal data structures
3825 * @bss: the bss to remove
3827 * This function removes the given BSS from the internal data structures
3828 * thereby making it no longer show up in scan results etc. Use this
3829 * function when you detect a BSS is gone. Normally BSSes will also time
3830 * out, so it is not necessary to use this function at all.
3832 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3834 static inline enum nl80211_bss_scan_width
3835 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def
*chandef
)
3837 switch (chandef
->width
) {
3838 case NL80211_CHAN_WIDTH_5
:
3839 return NL80211_BSS_CHAN_WIDTH_5
;
3840 case NL80211_CHAN_WIDTH_10
:
3841 return NL80211_BSS_CHAN_WIDTH_10
;
3843 return NL80211_BSS_CHAN_WIDTH_20
;
3848 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
3849 * @dev: network device
3850 * @buf: authentication frame (header + body)
3851 * @len: length of the frame data
3853 * This function is called whenever an authentication, disassociation or
3854 * deauthentication frame has been received and processed in station mode.
3855 * After being asked to authenticate via cfg80211_ops::auth() the driver must
3856 * call either this function or cfg80211_auth_timeout().
3857 * After being asked to associate via cfg80211_ops::assoc() the driver must
3858 * call either this function or cfg80211_auth_timeout().
3859 * While connected, the driver must calls this for received and processed
3860 * disassociation and deauthentication frames. If the frame couldn't be used
3861 * because it was unprotected, the driver must call the function
3862 * cfg80211_rx_unprot_mlme_mgmt() instead.
3864 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3866 void cfg80211_rx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3869 * cfg80211_auth_timeout - notification of timed out authentication
3870 * @dev: network device
3871 * @addr: The MAC address of the device with which the authentication timed out
3873 * This function may sleep. The caller must hold the corresponding wdev's
3876 void cfg80211_auth_timeout(struct net_device
*dev
, const u8
*addr
);
3879 * cfg80211_rx_assoc_resp - notification of processed association response
3880 * @dev: network device
3881 * @bss: the BSS that association was requested with, ownership of the pointer
3882 * moves to cfg80211 in this call
3883 * @buf: authentication frame (header + body)
3884 * @len: length of the frame data
3886 * After being asked to associate via cfg80211_ops::assoc() the driver must
3887 * call either this function or cfg80211_auth_timeout().
3889 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3891 void cfg80211_rx_assoc_resp(struct net_device
*dev
,
3892 struct cfg80211_bss
*bss
,
3893 const u8
*buf
, size_t len
);
3896 * cfg80211_assoc_timeout - notification of timed out association
3897 * @dev: network device
3898 * @bss: The BSS entry with which association timed out.
3900 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3902 void cfg80211_assoc_timeout(struct net_device
*dev
, struct cfg80211_bss
*bss
);
3905 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
3906 * @dev: network device
3907 * @buf: 802.11 frame (header + body)
3908 * @len: length of the frame data
3910 * This function is called whenever deauthentication has been processed in
3911 * station mode. This includes both received deauthentication frames and
3912 * locally generated ones. This function may sleep. The caller must hold the
3913 * corresponding wdev's mutex.
3915 void cfg80211_tx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3918 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
3919 * @dev: network device
3920 * @buf: deauthentication frame (header + body)
3921 * @len: length of the frame data
3923 * This function is called whenever a received deauthentication or dissassoc
3924 * frame has been dropped in station mode because of MFP being used but the
3925 * frame was not protected. This function may sleep.
3927 void cfg80211_rx_unprot_mlme_mgmt(struct net_device
*dev
,
3928 const u8
*buf
, size_t len
);
3931 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3932 * @dev: network device
3933 * @addr: The source MAC address of the frame
3934 * @key_type: The key type that the received frame used
3935 * @key_id: Key identifier (0..3). Can be -1 if missing.
3936 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3937 * @gfp: allocation flags
3939 * This function is called whenever the local MAC detects a MIC failure in a
3940 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3943 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
3944 enum nl80211_key_type key_type
, int key_id
,
3945 const u8
*tsc
, gfp_t gfp
);
3948 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3950 * @dev: network device
3951 * @bssid: the BSSID of the IBSS joined
3952 * @channel: the channel of the IBSS joined
3953 * @gfp: allocation flags
3955 * This function notifies cfg80211 that the device joined an IBSS or
3956 * switched to a different BSSID. Before this function can be called,
3957 * either a beacon has to have been received from the IBSS, or one of
3958 * the cfg80211_inform_bss{,_frame} functions must have been called
3959 * with the locally generated beacon -- this guarantees that there is
3960 * always a scan result for this IBSS. cfg80211 will handle the rest.
3962 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
,
3963 struct ieee80211_channel
*channel
, gfp_t gfp
);
3966 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3968 * @dev: network device
3969 * @macaddr: the MAC address of the new candidate
3970 * @ie: information elements advertised by the peer candidate
3971 * @ie_len: lenght of the information elements buffer
3972 * @gfp: allocation flags
3974 * This function notifies cfg80211 that the mesh peer candidate has been
3975 * detected, most likely via a beacon or, less likely, via a probe response.
3976 * cfg80211 then sends a notification to userspace.
3978 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3979 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3982 * DOC: RFkill integration
3984 * RFkill integration in cfg80211 is almost invisible to drivers,
3985 * as cfg80211 automatically registers an rfkill instance for each
3986 * wireless device it knows about. Soft kill is also translated
3987 * into disconnecting and turning all interfaces off, drivers are
3988 * expected to turn off the device when all interfaces are down.
3990 * However, devices may have a hard RFkill line, in which case they
3991 * also need to interact with the rfkill subsystem, via cfg80211.
3992 * They can do this with a few helper functions documented here.
3996 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3998 * @blocked: block status
4000 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
4003 * wiphy_rfkill_start_polling - start polling rfkill
4006 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
4009 * wiphy_rfkill_stop_polling - stop polling rfkill
4012 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
4015 * DOC: Vendor commands
4017 * Occasionally, there are special protocol or firmware features that
4018 * can't be implemented very openly. For this and similar cases, the
4019 * vendor command functionality allows implementing the features with
4020 * (typically closed-source) userspace and firmware, using nl80211 as
4021 * the configuration mechanism.
4023 * A driver supporting vendor commands must register them as an array
4024 * in struct wiphy, with handlers for each one, each command has an
4025 * OUI and sub command ID to identify it.
4027 * Note that this feature should not be (ab)used to implement protocol
4028 * features that could openly be shared across drivers. In particular,
4029 * it must never be required to use vendor commands to implement any
4030 * "normal" functionality that higher-level userspace like connection
4031 * managers etc. need.
4034 struct sk_buff
*__cfg80211_alloc_reply_skb(struct wiphy
*wiphy
,
4035 enum nl80211_commands cmd
,
4036 enum nl80211_attrs attr
,
4039 struct sk_buff
*__cfg80211_alloc_event_skb(struct wiphy
*wiphy
,
4040 enum nl80211_commands cmd
,
4041 enum nl80211_attrs attr
,
4042 int vendor_event_idx
,
4043 int approxlen
, gfp_t gfp
);
4045 void __cfg80211_send_event_skb(struct sk_buff
*skb
, gfp_t gfp
);
4048 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
4050 * @approxlen: an upper bound of the length of the data that will
4051 * be put into the skb
4053 * This function allocates and pre-fills an skb for a reply to
4054 * a vendor command. Since it is intended for a reply, calling
4055 * it outside of a vendor command's doit() operation is invalid.
4057 * The returned skb is pre-filled with some identifying data in
4058 * a way that any data that is put into the skb (with skb_put(),
4059 * nla_put() or similar) will end up being within the
4060 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
4061 * with the skb is adding data for the corresponding userspace tool
4062 * which can then read that data out of the vendor data attribute.
4063 * You must not modify the skb in any other way.
4065 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
4066 * its error code as the result of the doit() operation.
4068 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4070 static inline struct sk_buff
*
4071 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4073 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_VENDOR
,
4074 NL80211_ATTR_VENDOR_DATA
, approxlen
);
4078 * cfg80211_vendor_cmd_reply - send the reply skb
4079 * @skb: The skb, must have been allocated with
4080 * cfg80211_vendor_cmd_alloc_reply_skb()
4082 * Since calling this function will usually be the last thing
4083 * before returning from the vendor command doit() you should
4084 * return the error code. Note that this function consumes the
4085 * skb regardless of the return value.
4087 * Return: An error code or 0 on success.
4089 int cfg80211_vendor_cmd_reply(struct sk_buff
*skb
);
4092 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
4094 * @event_idx: index of the vendor event in the wiphy's vendor_events
4095 * @approxlen: an upper bound of the length of the data that will
4096 * be put into the skb
4097 * @gfp: allocation flags
4099 * This function allocates and pre-fills an skb for an event on the
4100 * vendor-specific multicast group.
4102 * When done filling the skb, call cfg80211_vendor_event() with the
4103 * skb to send the event.
4105 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4107 static inline struct sk_buff
*
4108 cfg80211_vendor_event_alloc(struct wiphy
*wiphy
, int approxlen
,
4109 int event_idx
, gfp_t gfp
)
4111 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_VENDOR
,
4112 NL80211_ATTR_VENDOR_DATA
,
4113 event_idx
, approxlen
, gfp
);
4117 * cfg80211_vendor_event - send the event
4118 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
4119 * @gfp: allocation flags
4121 * This function sends the given @skb, which must have been allocated
4122 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
4124 static inline void cfg80211_vendor_event(struct sk_buff
*skb
, gfp_t gfp
)
4126 __cfg80211_send_event_skb(skb
, gfp
);
4129 #ifdef CONFIG_NL80211_TESTMODE
4133 * Test mode is a set of utility functions to allow drivers to
4134 * interact with driver-specific tools to aid, for instance,
4135 * factory programming.
4137 * This chapter describes how drivers interact with it, for more
4138 * information see the nl80211 book's chapter on it.
4142 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
4144 * @approxlen: an upper bound of the length of the data that will
4145 * be put into the skb
4147 * This function allocates and pre-fills an skb for a reply to
4148 * the testmode command. Since it is intended for a reply, calling
4149 * it outside of the @testmode_cmd operation is invalid.
4151 * The returned skb is pre-filled with the wiphy index and set up in
4152 * a way that any data that is put into the skb (with skb_put(),
4153 * nla_put() or similar) will end up being within the
4154 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
4155 * with the skb is adding data for the corresponding userspace tool
4156 * which can then read that data out of the testdata attribute. You
4157 * must not modify the skb in any other way.
4159 * When done, call cfg80211_testmode_reply() with the skb and return
4160 * its error code as the result of the @testmode_cmd operation.
4162 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4164 static inline struct sk_buff
*
4165 cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4167 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_TESTMODE
,
4168 NL80211_ATTR_TESTDATA
, approxlen
);
4172 * cfg80211_testmode_reply - send the reply skb
4173 * @skb: The skb, must have been allocated with
4174 * cfg80211_testmode_alloc_reply_skb()
4176 * Since calling this function will usually be the last thing
4177 * before returning from the @testmode_cmd you should return
4178 * the error code. Note that this function consumes the skb
4179 * regardless of the return value.
4181 * Return: An error code or 0 on success.
4183 static inline int cfg80211_testmode_reply(struct sk_buff
*skb
)
4185 return cfg80211_vendor_cmd_reply(skb
);
4189 * cfg80211_testmode_alloc_event_skb - allocate testmode event
4191 * @approxlen: an upper bound of the length of the data that will
4192 * be put into the skb
4193 * @gfp: allocation flags
4195 * This function allocates and pre-fills an skb for an event on the
4196 * testmode multicast group.
4198 * The returned skb is set up in the same way as with
4199 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
4200 * there, you should simply add data to it that will then end up in the
4201 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
4204 * When done filling the skb, call cfg80211_testmode_event() with the
4205 * skb to send the event.
4207 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4209 static inline struct sk_buff
*
4210 cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
, int approxlen
, gfp_t gfp
)
4212 return __cfg80211_alloc_event_skb(wiphy
, NL80211_CMD_TESTMODE
,
4213 NL80211_ATTR_TESTDATA
, -1,
4218 * cfg80211_testmode_event - send the event
4219 * @skb: The skb, must have been allocated with
4220 * cfg80211_testmode_alloc_event_skb()
4221 * @gfp: allocation flags
4223 * This function sends the given @skb, which must have been allocated
4224 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
4227 static inline void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
)
4229 __cfg80211_send_event_skb(skb
, gfp
);
4232 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
4233 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
4235 #define CFG80211_TESTMODE_CMD(cmd)
4236 #define CFG80211_TESTMODE_DUMP(cmd)
4240 * cfg80211_connect_result - notify cfg80211 of connection result
4242 * @dev: network device
4243 * @bssid: the BSSID of the AP
4244 * @req_ie: association request IEs (maybe be %NULL)
4245 * @req_ie_len: association request IEs length
4246 * @resp_ie: association response IEs (may be %NULL)
4247 * @resp_ie_len: assoc response IEs length
4248 * @status: status code, 0 for successful connection, use
4249 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4250 * the real status code for failures.
4251 * @gfp: allocation flags
4253 * It should be called by the underlying driver whenever connect() has
4256 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
4257 const u8
*req_ie
, size_t req_ie_len
,
4258 const u8
*resp_ie
, size_t resp_ie_len
,
4259 u16 status
, gfp_t gfp
);
4262 * cfg80211_roamed - notify cfg80211 of roaming
4264 * @dev: network device
4265 * @channel: the channel of the new AP
4266 * @bssid: the BSSID of the new AP
4267 * @req_ie: association request IEs (maybe be %NULL)
4268 * @req_ie_len: association request IEs length
4269 * @resp_ie: association response IEs (may be %NULL)
4270 * @resp_ie_len: assoc response IEs length
4271 * @gfp: allocation flags
4273 * It should be called by the underlying driver whenever it roamed
4274 * from one AP to another while connected.
4276 void cfg80211_roamed(struct net_device
*dev
,
4277 struct ieee80211_channel
*channel
,
4279 const u8
*req_ie
, size_t req_ie_len
,
4280 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4283 * cfg80211_roamed_bss - notify cfg80211 of roaming
4285 * @dev: network device
4286 * @bss: entry of bss to which STA got roamed
4287 * @req_ie: association request IEs (maybe be %NULL)
4288 * @req_ie_len: association request IEs length
4289 * @resp_ie: association response IEs (may be %NULL)
4290 * @resp_ie_len: assoc response IEs length
4291 * @gfp: allocation flags
4293 * This is just a wrapper to notify cfg80211 of roaming event with driver
4294 * passing bss to avoid a race in timeout of the bss entry. It should be
4295 * called by the underlying driver whenever it roamed from one AP to another
4296 * while connected. Drivers which have roaming implemented in firmware
4297 * may use this function to avoid a race in bss entry timeout where the bss
4298 * entry of the new AP is seen in the driver, but gets timed out by the time
4299 * it is accessed in __cfg80211_roamed() due to delay in scheduling
4300 * rdev->event_work. In case of any failures, the reference is released
4301 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
4302 * it will be released while diconneting from the current bss.
4304 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
4305 const u8
*req_ie
, size_t req_ie_len
,
4306 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4309 * cfg80211_disconnected - notify cfg80211 that connection was dropped
4311 * @dev: network device
4312 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
4313 * @ie_len: length of IEs
4314 * @reason: reason code for the disconnection, set it to 0 if unknown
4315 * @gfp: allocation flags
4317 * After it calls this function, the driver should enter an idle state
4318 * and not try to connect to any AP any more.
4320 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
4321 u8
*ie
, size_t ie_len
, gfp_t gfp
);
4324 * cfg80211_ready_on_channel - notification of remain_on_channel start
4325 * @wdev: wireless device
4326 * @cookie: the request cookie
4327 * @chan: The current channel (from remain_on_channel request)
4328 * @duration: Duration in milliseconds that the driver intents to remain on the
4330 * @gfp: allocation flags
4332 void cfg80211_ready_on_channel(struct wireless_dev
*wdev
, u64 cookie
,
4333 struct ieee80211_channel
*chan
,
4334 unsigned int duration
, gfp_t gfp
);
4337 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
4338 * @wdev: wireless device
4339 * @cookie: the request cookie
4340 * @chan: The current channel (from remain_on_channel request)
4341 * @gfp: allocation flags
4343 void cfg80211_remain_on_channel_expired(struct wireless_dev
*wdev
, u64 cookie
,
4344 struct ieee80211_channel
*chan
,
4349 * cfg80211_new_sta - notify userspace about station
4352 * @mac_addr: the station's address
4353 * @sinfo: the station information
4354 * @gfp: allocation flags
4356 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
4357 struct station_info
*sinfo
, gfp_t gfp
);
4360 * cfg80211_del_sta - notify userspace about deletion of a station
4363 * @mac_addr: the station's address
4364 * @gfp: allocation flags
4366 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
4369 * cfg80211_conn_failed - connection request failed notification
4372 * @mac_addr: the station's address
4373 * @reason: the reason for connection failure
4374 * @gfp: allocation flags
4376 * Whenever a station tries to connect to an AP and if the station
4377 * could not connect to the AP as the AP has rejected the connection
4378 * for some reasons, this function is called.
4380 * The reason for connection failure can be any of the value from
4381 * nl80211_connect_failed_reason enum
4383 void cfg80211_conn_failed(struct net_device
*dev
, const u8
*mac_addr
,
4384 enum nl80211_connect_failed_reason reason
,
4388 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
4389 * @wdev: wireless device receiving the frame
4390 * @freq: Frequency on which the frame was received in MHz
4391 * @sig_dbm: signal strength in mBm, or 0 if unknown
4392 * @buf: Management frame (header + body)
4393 * @len: length of the frame data
4394 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
4395 * @gfp: context flags
4397 * This function is called whenever an Action frame is received for a station
4398 * mode interface, but is not processed in kernel.
4400 * Return: %true if a user space application has registered for this frame.
4401 * For action frames, that makes it responsible for rejecting unrecognized
4402 * action frames; %false otherwise, in which case for action frames the
4403 * driver is responsible for rejecting the frame.
4405 bool cfg80211_rx_mgmt(struct wireless_dev
*wdev
, int freq
, int sig_dbm
,
4406 const u8
*buf
, size_t len
, u32 flags
, gfp_t gfp
);
4409 * cfg80211_mgmt_tx_status - notification of TX status for management frame
4410 * @wdev: wireless device receiving the frame
4411 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
4412 * @buf: Management frame (header + body)
4413 * @len: length of the frame data
4414 * @ack: Whether frame was acknowledged
4415 * @gfp: context flags
4417 * This function is called whenever a management frame was requested to be
4418 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
4419 * transmission attempt.
4421 void cfg80211_mgmt_tx_status(struct wireless_dev
*wdev
, u64 cookie
,
4422 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
4426 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
4427 * @dev: network device
4428 * @rssi_event: the triggered RSSI event
4429 * @gfp: context flags
4431 * This function is called when a configured connection quality monitoring
4432 * rssi threshold reached event occurs.
4434 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
4435 enum nl80211_cqm_rssi_threshold_event rssi_event
,
4439 * cfg80211_radar_event - radar detection event
4441 * @chandef: chandef for the current channel
4442 * @gfp: context flags
4444 * This function is called when a radar is detected on the current chanenl.
4446 void cfg80211_radar_event(struct wiphy
*wiphy
,
4447 struct cfg80211_chan_def
*chandef
, gfp_t gfp
);
4450 * cfg80211_cac_event - Channel availability check (CAC) event
4451 * @netdev: network device
4452 * @chandef: chandef for the current channel
4453 * @event: type of event
4454 * @gfp: context flags
4456 * This function is called when a Channel availability check (CAC) is finished
4457 * or aborted. This must be called to notify the completion of a CAC process,
4458 * also by full-MAC drivers.
4460 void cfg80211_cac_event(struct net_device
*netdev
,
4461 const struct cfg80211_chan_def
*chandef
,
4462 enum nl80211_radar_event event
, gfp_t gfp
);
4466 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
4467 * @dev: network device
4468 * @peer: peer's MAC address
4469 * @num_packets: how many packets were lost -- should be a fixed threshold
4470 * but probably no less than maybe 50, or maybe a throughput dependent
4471 * threshold (to account for temporary interference)
4472 * @gfp: context flags
4474 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
4475 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
4478 * cfg80211_cqm_txe_notify - TX error rate event
4479 * @dev: network device
4480 * @peer: peer's MAC address
4481 * @num_packets: how many packets were lost
4482 * @rate: % of packets which failed transmission
4483 * @intvl: interval (in s) over which the TX failure threshold was breached.
4484 * @gfp: context flags
4486 * Notify userspace when configured % TX failures over number of packets in a
4487 * given interval is exceeded.
4489 void cfg80211_cqm_txe_notify(struct net_device
*dev
, const u8
*peer
,
4490 u32 num_packets
, u32 rate
, u32 intvl
, gfp_t gfp
);
4493 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
4494 * @dev: network device
4495 * @bssid: BSSID of AP (to avoid races)
4496 * @replay_ctr: new replay counter
4497 * @gfp: allocation flags
4499 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
4500 const u8
*replay_ctr
, gfp_t gfp
);
4503 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
4504 * @dev: network device
4505 * @index: candidate index (the smaller the index, the higher the priority)
4506 * @bssid: BSSID of AP
4507 * @preauth: Whether AP advertises support for RSN pre-authentication
4508 * @gfp: allocation flags
4510 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
4511 const u8
*bssid
, bool preauth
, gfp_t gfp
);
4514 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
4515 * @dev: The device the frame matched to
4516 * @addr: the transmitter address
4517 * @gfp: context flags
4519 * This function is used in AP mode (only!) to inform userspace that
4520 * a spurious class 3 frame was received, to be able to deauth the
4522 * Return: %true if the frame was passed to userspace (or this failed
4523 * for a reason other than not having a subscription.)
4525 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
4526 const u8
*addr
, gfp_t gfp
);
4529 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
4530 * @dev: The device the frame matched to
4531 * @addr: the transmitter address
4532 * @gfp: context flags
4534 * This function is used in AP mode (only!) to inform userspace that
4535 * an associated station sent a 4addr frame but that wasn't expected.
4536 * It is allowed and desirable to send this event only once for each
4537 * station to avoid event flooding.
4538 * Return: %true if the frame was passed to userspace (or this failed
4539 * for a reason other than not having a subscription.)
4541 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
4542 const u8
*addr
, gfp_t gfp
);
4545 * cfg80211_probe_status - notify userspace about probe status
4546 * @dev: the device the probe was sent on
4547 * @addr: the address of the peer
4548 * @cookie: the cookie filled in @probe_client previously
4549 * @acked: indicates whether probe was acked or not
4550 * @gfp: allocation flags
4552 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
4553 u64 cookie
, bool acked
, gfp_t gfp
);
4556 * cfg80211_report_obss_beacon - report beacon from other APs
4557 * @wiphy: The wiphy that received the beacon
4559 * @len: length of the frame
4560 * @freq: frequency the frame was received on
4561 * @sig_dbm: signal strength in mBm, or 0 if unknown
4563 * Use this function to report to userspace when a beacon was
4564 * received. It is not useful to call this when there is no
4565 * netdev that is in AP/GO mode.
4567 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
4568 const u8
*frame
, size_t len
,
4569 int freq
, int sig_dbm
);
4572 * cfg80211_reg_can_beacon - check if beaconing is allowed
4574 * @chandef: the channel definition
4575 * @iftype: interface type
4577 * Return: %true if there is no secondary channel or the secondary channel(s)
4578 * can be used for beaconing (i.e. is not a radar channel etc.)
4580 bool cfg80211_reg_can_beacon(struct wiphy
*wiphy
,
4581 struct cfg80211_chan_def
*chandef
,
4582 enum nl80211_iftype iftype
);
4585 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
4586 * @dev: the device which switched channels
4587 * @chandef: the new channel definition
4589 * Caller must acquire wdev_lock, therefore must only be called from sleepable
4592 void cfg80211_ch_switch_notify(struct net_device
*dev
,
4593 struct cfg80211_chan_def
*chandef
);
4596 * ieee80211_operating_class_to_band - convert operating class to band
4598 * @operating_class: the operating class to convert
4599 * @band: band pointer to fill
4601 * Returns %true if the conversion was successful, %false otherwise.
4603 bool ieee80211_operating_class_to_band(u8 operating_class
,
4604 enum ieee80211_band
*band
);
4607 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
4608 * @dev: the device on which the operation is requested
4609 * @peer: the MAC address of the peer device
4610 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
4611 * NL80211_TDLS_TEARDOWN)
4612 * @reason_code: the reason code for teardown request
4613 * @gfp: allocation flags
4615 * This function is used to request userspace to perform TDLS operation that
4616 * requires knowledge of keys, i.e., link setup or teardown when the AP
4617 * connection uses encryption. This is optional mechanism for the driver to use
4618 * if it can automatically determine when a TDLS link could be useful (e.g.,
4619 * based on traffic and signal strength for a peer).
4621 void cfg80211_tdls_oper_request(struct net_device
*dev
, const u8
*peer
,
4622 enum nl80211_tdls_operation oper
,
4623 u16 reason_code
, gfp_t gfp
);
4626 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
4627 * @rate: given rate_info to calculate bitrate from
4629 * return 0 if MCS index >= 32
4631 u32
cfg80211_calculate_bitrate(struct rate_info
*rate
);
4634 * cfg80211_unregister_wdev - remove the given wdev
4635 * @wdev: struct wireless_dev to remove
4637 * Call this function only for wdevs that have no netdev assigned,
4638 * e.g. P2P Devices. It removes the device from the list so that
4639 * it can no longer be used. It is necessary to call this function
4640 * even when cfg80211 requests the removal of the interface by
4641 * calling the del_virtual_intf() callback. The function must also
4642 * be called when the driver wishes to unregister the wdev, e.g.
4643 * when the device is unbound from the driver.
4645 * Requires the RTNL to be held.
4647 void cfg80211_unregister_wdev(struct wireless_dev
*wdev
);
4650 * struct cfg80211_ft_event - FT Information Elements
4652 * @ies_len: length of the FT IE in bytes
4653 * @target_ap: target AP's MAC address
4655 * @ric_ies_len: length of the RIC IE in bytes
4657 struct cfg80211_ft_event_params
{
4660 const u8
*target_ap
;
4666 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
4667 * @netdev: network device
4668 * @ft_event: IE information
4670 void cfg80211_ft_event(struct net_device
*netdev
,
4671 struct cfg80211_ft_event_params
*ft_event
);
4674 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
4675 * @ies: the input IE buffer
4676 * @len: the input length
4677 * @attr: the attribute ID to find
4678 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
4679 * if the function is only called to get the needed buffer size
4680 * @bufsize: size of the output buffer
4682 * The function finds a given P2P attribute in the (vendor) IEs and
4683 * copies its contents to the given buffer.
4685 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
4686 * malformed or the attribute can't be found (respectively), or the
4687 * length of the found attribute (which can be zero).
4689 int cfg80211_get_p2p_attr(const u8
*ies
, unsigned int len
,
4690 enum ieee80211_p2p_attr_id attr
,
4691 u8
*buf
, unsigned int bufsize
);
4694 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
4695 * @wdev: the wireless device reporting the wakeup
4696 * @wakeup: the wakeup report
4697 * @gfp: allocation flags
4699 * This function reports that the given device woke up. If it
4700 * caused the wakeup, report the reason(s), otherwise you may
4701 * pass %NULL as the @wakeup parameter to advertise that something
4702 * else caused the wakeup.
4704 void cfg80211_report_wowlan_wakeup(struct wireless_dev
*wdev
,
4705 struct cfg80211_wowlan_wakeup
*wakeup
,
4709 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
4711 * @wdev: the wireless device for which critical protocol is stopped.
4712 * @gfp: allocation flags
4714 * This function can be called by the driver to indicate it has reverted
4715 * operation back to normal. One reason could be that the duration given
4716 * by .crit_proto_start() has expired.
4718 void cfg80211_crit_proto_stopped(struct wireless_dev
*wdev
, gfp_t gfp
);
4721 * ieee80211_get_num_supported_channels - get number of channels device has
4724 * Return: the number of channels supported by the device.
4726 unsigned int ieee80211_get_num_supported_channels(struct wiphy
*wiphy
);
4729 * cfg80211_check_combinations - check interface combinations
4732 * @num_different_channels: the number of different channels we want
4733 * to use for verification
4734 * @radar_detect: a bitmap where each bit corresponds to a channel
4735 * width where radar detection is needed, as in the definition of
4736 * &struct ieee80211_iface_combination.@radar_detect_widths
4737 * @iftype_num: array with the numbers of interfaces of each interface
4738 * type. The index is the interface type as specified in &enum
4741 * This function can be called by the driver to check whether a
4742 * combination of interfaces and their types are allowed according to
4743 * the interface combinations.
4745 int cfg80211_check_combinations(struct wiphy
*wiphy
,
4746 const int num_different_channels
,
4747 const u8 radar_detect
,
4748 const int iftype_num
[NUM_NL80211_IFTYPES
]);
4751 * cfg80211_iter_combinations - iterate over matching combinations
4754 * @num_different_channels: the number of different channels we want
4755 * to use for verification
4756 * @radar_detect: a bitmap where each bit corresponds to a channel
4757 * width where radar detection is needed, as in the definition of
4758 * &struct ieee80211_iface_combination.@radar_detect_widths
4759 * @iftype_num: array with the numbers of interfaces of each interface
4760 * type. The index is the interface type as specified in &enum
4762 * @iter: function to call for each matching combination
4763 * @data: pointer to pass to iter function
4765 * This function can be called by the driver to check what possible
4766 * combinations it fits in at a given moment, e.g. for channel switching
4769 int cfg80211_iter_combinations(struct wiphy
*wiphy
,
4770 const int num_different_channels
,
4771 const u8 radar_detect
,
4772 const int iftype_num
[NUM_NL80211_IFTYPES
],
4773 void (*iter
)(const struct ieee80211_iface_combination
*c
,
4778 * cfg80211_stop_iface - trigger interface disconnection
4781 * @wdev: wireless device
4782 * @gfp: context flags
4784 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
4787 * Note: This doesn't need any locks and is asynchronous.
4789 void cfg80211_stop_iface(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
4793 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
4794 * @wiphy: the wiphy to shut down
4796 * This function shuts down all interfaces belonging to this wiphy by
4797 * calling dev_close() (and treating non-netdev interfaces as needed).
4798 * It shouldn't really be used unless there are some fatal device errors
4799 * that really can't be recovered in any other way.
4801 * Callers must hold the RTNL and be able to deal with callbacks into
4802 * the driver while the function is running.
4804 void cfg80211_shutdown_all_interfaces(struct wiphy
*wiphy
);
4806 /* Logging, debugging and troubleshooting/diagnostic helpers. */
4808 /* wiphy_printk helpers, similar to dev_printk */
4810 #define wiphy_printk(level, wiphy, format, args...) \
4811 dev_printk(level, &(wiphy)->dev, format, ##args)
4812 #define wiphy_emerg(wiphy, format, args...) \
4813 dev_emerg(&(wiphy)->dev, format, ##args)
4814 #define wiphy_alert(wiphy, format, args...) \
4815 dev_alert(&(wiphy)->dev, format, ##args)
4816 #define wiphy_crit(wiphy, format, args...) \
4817 dev_crit(&(wiphy)->dev, format, ##args)
4818 #define wiphy_err(wiphy, format, args...) \
4819 dev_err(&(wiphy)->dev, format, ##args)
4820 #define wiphy_warn(wiphy, format, args...) \
4821 dev_warn(&(wiphy)->dev, format, ##args)
4822 #define wiphy_notice(wiphy, format, args...) \
4823 dev_notice(&(wiphy)->dev, format, ##args)
4824 #define wiphy_info(wiphy, format, args...) \
4825 dev_info(&(wiphy)->dev, format, ##args)
4827 #define wiphy_debug(wiphy, format, args...) \
4828 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
4830 #define wiphy_dbg(wiphy, format, args...) \
4831 dev_dbg(&(wiphy)->dev, format, ##args)
4833 #if defined(VERBOSE_DEBUG)
4834 #define wiphy_vdbg wiphy_dbg
4836 #define wiphy_vdbg(wiphy, format, args...) \
4839 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
4845 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
4846 * of using a WARN/WARN_ON to get the message out, including the
4847 * file/line information and a backtrace.
4849 #define wiphy_WARN(wiphy, format, args...) \
4850 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
4852 #endif /* __NET_CFG80211_H */