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_PASSIVE_SCAN: Only passive scanning is permitted
96 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
97 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
98 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
100 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
102 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
103 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
104 * this flag indicates that an 80 MHz channel cannot use this
105 * channel as the control or any of the secondary channels.
106 * This may be due to the driver or due to regulatory bandwidth
108 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
109 * this flag indicates that an 160 MHz channel cannot use this
110 * channel as the control or any of the secondary channels.
111 * This may be due to the driver or due to regulatory bandwidth
114 enum ieee80211_channel_flags
{
115 IEEE80211_CHAN_DISABLED
= 1<<0,
116 IEEE80211_CHAN_PASSIVE_SCAN
= 1<<1,
117 IEEE80211_CHAN_NO_IBSS
= 1<<2,
118 IEEE80211_CHAN_RADAR
= 1<<3,
119 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
120 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
121 IEEE80211_CHAN_NO_OFDM
= 1<<6,
122 IEEE80211_CHAN_NO_80MHZ
= 1<<7,
123 IEEE80211_CHAN_NO_160MHZ
= 1<<8,
126 #define IEEE80211_CHAN_NO_HT40 \
127 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
129 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
130 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
133 * struct ieee80211_channel - channel definition
135 * This structure describes a single channel for use
138 * @center_freq: center frequency in MHz
139 * @hw_value: hardware-specific value for the channel
140 * @flags: channel flags from &enum ieee80211_channel_flags.
141 * @orig_flags: channel flags at registration time, used by regulatory
142 * code to support devices with additional restrictions
143 * @band: band this channel belongs to.
144 * @max_antenna_gain: maximum antenna gain in dBi
145 * @max_power: maximum transmission power (in dBm)
146 * @max_reg_power: maximum regulatory transmission power (in dBm)
147 * @beacon_found: helper to regulatory code to indicate when a beacon
148 * has been found on this channel. Use regulatory_hint_found_beacon()
149 * to enable this, this is useful only on 5 GHz band.
150 * @orig_mag: internal use
151 * @orig_mpwr: internal use
152 * @dfs_state: current state of this channel. Only relevant if radar is required
154 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
156 struct ieee80211_channel
{
157 enum ieee80211_band band
;
161 int max_antenna_gain
;
166 int orig_mag
, orig_mpwr
;
167 enum nl80211_dfs_state dfs_state
;
168 unsigned long dfs_state_entered
;
172 * enum ieee80211_rate_flags - rate flags
174 * Hardware/specification flags for rates. These are structured
175 * in a way that allows using the same bitrate structure for
176 * different bands/PHY modes.
178 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
179 * preamble on this bitrate; only relevant in 2.4GHz band and
181 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
182 * when used with 802.11a (on the 5 GHz band); filled by the
183 * core code when registering the wiphy.
184 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
185 * when used with 802.11b (on the 2.4 GHz band); filled by the
186 * core code when registering the wiphy.
187 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
188 * when used with 802.11g (on the 2.4 GHz band); filled by the
189 * core code when registering the wiphy.
190 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
192 enum ieee80211_rate_flags
{
193 IEEE80211_RATE_SHORT_PREAMBLE
= 1<<0,
194 IEEE80211_RATE_MANDATORY_A
= 1<<1,
195 IEEE80211_RATE_MANDATORY_B
= 1<<2,
196 IEEE80211_RATE_MANDATORY_G
= 1<<3,
197 IEEE80211_RATE_ERP_G
= 1<<4,
201 * struct ieee80211_rate - bitrate definition
203 * This structure describes a bitrate that an 802.11 PHY can
204 * operate with. The two values @hw_value and @hw_value_short
205 * are only for driver use when pointers to this structure are
208 * @flags: rate-specific flags
209 * @bitrate: bitrate in units of 100 Kbps
210 * @hw_value: driver/hardware value for this rate
211 * @hw_value_short: driver/hardware value for this rate when
212 * short preamble is used
214 struct ieee80211_rate
{
217 u16 hw_value
, hw_value_short
;
221 * struct ieee80211_sta_ht_cap - STA's HT capabilities
223 * This structure describes most essential parameters needed
224 * to describe 802.11n HT capabilities for an STA.
226 * @ht_supported: is HT supported by the STA
227 * @cap: HT capabilities map as described in 802.11n spec
228 * @ampdu_factor: Maximum A-MPDU length factor
229 * @ampdu_density: Minimum A-MPDU spacing
230 * @mcs: Supported MCS rates
232 struct ieee80211_sta_ht_cap
{
233 u16 cap
; /* use IEEE80211_HT_CAP_ */
237 struct ieee80211_mcs_info mcs
;
241 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
243 * This structure describes most essential parameters needed
244 * to describe 802.11ac VHT capabilities for an STA.
246 * @vht_supported: is VHT supported by the STA
247 * @cap: VHT capabilities map as described in 802.11ac spec
248 * @vht_mcs: Supported VHT MCS rates
250 struct ieee80211_sta_vht_cap
{
252 u32 cap
; /* use IEEE80211_VHT_CAP_ */
253 struct ieee80211_vht_mcs_info vht_mcs
;
257 * struct ieee80211_supported_band - frequency band definition
259 * This structure describes a frequency band a wiphy
260 * is able to operate in.
262 * @channels: Array of channels the hardware can operate in
264 * @band: the band this structure represents
265 * @n_channels: Number of channels in @channels
266 * @bitrates: Array of bitrates the hardware can operate with
267 * in this band. Must be sorted to give a valid "supported
268 * rates" IE, i.e. CCK rates first, then OFDM.
269 * @n_bitrates: Number of bitrates in @bitrates
270 * @ht_cap: HT capabilities in this band
271 * @vht_cap: VHT capabilities in this band
273 struct ieee80211_supported_band
{
274 struct ieee80211_channel
*channels
;
275 struct ieee80211_rate
*bitrates
;
276 enum ieee80211_band band
;
279 struct ieee80211_sta_ht_cap ht_cap
;
280 struct ieee80211_sta_vht_cap vht_cap
;
284 * Wireless hardware/device configuration structures and methods
288 * DOC: Actions and configuration
290 * Each wireless device and each virtual interface offer a set of configuration
291 * operations and other actions that are invoked by userspace. Each of these
292 * actions is described in the operations structure, and the parameters these
293 * operations use are described separately.
295 * Additionally, some operations are asynchronous and expect to get status
296 * information via some functions that drivers need to call.
298 * Scanning and BSS list handling with its associated functionality is described
299 * in a separate chapter.
303 * struct vif_params - describes virtual interface parameters
304 * @use_4addr: use 4-address frames
305 * @macaddr: address to use for this virtual interface. This will only
306 * be used for non-netdevice interfaces. If this parameter is set
307 * to zero address the driver may determine the address as needed.
311 u8 macaddr
[ETH_ALEN
];
315 * struct key_params - key information
317 * Information about a key
320 * @key_len: length of key material
321 * @cipher: cipher suite selector
322 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
323 * with the get_key() callback, must be in little endian,
324 * length given by @seq_len.
325 * @seq_len: length of @seq.
336 * struct cfg80211_chan_def - channel definition
337 * @chan: the (control) channel
338 * @width: channel width
339 * @center_freq1: center frequency of first segment
340 * @center_freq2: center frequency of second segment
341 * (only with 80+80 MHz)
343 struct cfg80211_chan_def
{
344 struct ieee80211_channel
*chan
;
345 enum nl80211_chan_width width
;
351 * cfg80211_get_chandef_type - return old channel type from chandef
352 * @chandef: the channel definition
354 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
355 * chandef, which must have a bandwidth allowing this conversion.
357 static inline enum nl80211_channel_type
358 cfg80211_get_chandef_type(const struct cfg80211_chan_def
*chandef
)
360 switch (chandef
->width
) {
361 case NL80211_CHAN_WIDTH_20_NOHT
:
362 return NL80211_CHAN_NO_HT
;
363 case NL80211_CHAN_WIDTH_20
:
364 return NL80211_CHAN_HT20
;
365 case NL80211_CHAN_WIDTH_40
:
366 if (chandef
->center_freq1
> chandef
->chan
->center_freq
)
367 return NL80211_CHAN_HT40PLUS
;
368 return NL80211_CHAN_HT40MINUS
;
371 return NL80211_CHAN_NO_HT
;
376 * cfg80211_chandef_create - create channel definition using channel type
377 * @chandef: the channel definition struct to fill
378 * @channel: the control channel
379 * @chantype: the channel type
381 * Given a channel type, create a channel definition.
383 void cfg80211_chandef_create(struct cfg80211_chan_def
*chandef
,
384 struct ieee80211_channel
*channel
,
385 enum nl80211_channel_type chantype
);
388 * cfg80211_chandef_identical - check if two channel definitions are identical
389 * @chandef1: first channel definition
390 * @chandef2: second channel definition
392 * Return: %true if the channels defined by the channel definitions are
393 * identical, %false otherwise.
396 cfg80211_chandef_identical(const struct cfg80211_chan_def
*chandef1
,
397 const struct cfg80211_chan_def
*chandef2
)
399 return (chandef1
->chan
== chandef2
->chan
&&
400 chandef1
->width
== chandef2
->width
&&
401 chandef1
->center_freq1
== chandef2
->center_freq1
&&
402 chandef1
->center_freq2
== chandef2
->center_freq2
);
406 * cfg80211_chandef_compatible - check if two channel definitions are compatible
407 * @chandef1: first channel definition
408 * @chandef2: second channel definition
410 * Return: %NULL if the given channel definitions are incompatible,
411 * chandef1 or chandef2 otherwise.
413 const struct cfg80211_chan_def
*
414 cfg80211_chandef_compatible(const struct cfg80211_chan_def
*chandef1
,
415 const struct cfg80211_chan_def
*chandef2
);
418 * cfg80211_chandef_valid - check if a channel definition is valid
419 * @chandef: the channel definition to check
420 * Return: %true if the channel definition is valid. %false otherwise.
422 bool cfg80211_chandef_valid(const struct cfg80211_chan_def
*chandef
);
425 * cfg80211_chandef_usable - check if secondary channels can be used
426 * @wiphy: the wiphy to validate against
427 * @chandef: the channel definition to check
428 * @prohibited_flags: the regulatory channel flags that must not be set
429 * Return: %true if secondary channels are usable. %false otherwise.
431 bool cfg80211_chandef_usable(struct wiphy
*wiphy
,
432 const struct cfg80211_chan_def
*chandef
,
433 u32 prohibited_flags
);
436 * enum survey_info_flags - survey information flags
438 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
439 * @SURVEY_INFO_IN_USE: channel is currently being used
440 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
441 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
442 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
443 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
444 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
446 * Used by the driver to indicate which info in &struct survey_info
447 * it has filled in during the get_survey().
449 enum survey_info_flags
{
450 SURVEY_INFO_NOISE_DBM
= 1<<0,
451 SURVEY_INFO_IN_USE
= 1<<1,
452 SURVEY_INFO_CHANNEL_TIME
= 1<<2,
453 SURVEY_INFO_CHANNEL_TIME_BUSY
= 1<<3,
454 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY
= 1<<4,
455 SURVEY_INFO_CHANNEL_TIME_RX
= 1<<5,
456 SURVEY_INFO_CHANNEL_TIME_TX
= 1<<6,
460 * struct survey_info - channel survey response
462 * @channel: the channel this survey record reports, mandatory
463 * @filled: bitflag of flags from &enum survey_info_flags
464 * @noise: channel noise in dBm. This and all following fields are
466 * @channel_time: amount of time in ms the radio spent on the channel
467 * @channel_time_busy: amount of time the primary channel was sensed busy
468 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
469 * @channel_time_rx: amount of time the radio spent receiving data
470 * @channel_time_tx: amount of time the radio spent transmitting data
472 * Used by dump_survey() to report back per-channel survey information.
474 * This structure can later be expanded with things like
475 * channel duty cycle etc.
478 struct ieee80211_channel
*channel
;
480 u64 channel_time_busy
;
481 u64 channel_time_ext_busy
;
489 * struct cfg80211_crypto_settings - Crypto settings
490 * @wpa_versions: indicates which, if any, WPA versions are enabled
491 * (from enum nl80211_wpa_versions)
492 * @cipher_group: group key cipher suite (or 0 if unset)
493 * @n_ciphers_pairwise: number of AP supported unicast ciphers
494 * @ciphers_pairwise: unicast key cipher suites
495 * @n_akm_suites: number of AKM suites
496 * @akm_suites: AKM suites
497 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
498 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
499 * required to assume that the port is unauthorized until authorized by
500 * user space. Otherwise, port is marked authorized by default.
501 * @control_port_ethertype: the control port protocol that should be
502 * allowed through even on unauthorized ports
503 * @control_port_no_encrypt: TRUE to prevent encryption of control port
506 struct cfg80211_crypto_settings
{
509 int n_ciphers_pairwise
;
510 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
512 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
514 __be16 control_port_ethertype
;
515 bool control_port_no_encrypt
;
519 * struct cfg80211_beacon_data - beacon data
520 * @head: head portion of beacon (before TIM IE)
521 * or %NULL if not changed
522 * @tail: tail portion of beacon (after TIM IE)
523 * or %NULL if not changed
524 * @head_len: length of @head
525 * @tail_len: length of @tail
526 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
527 * @beacon_ies_len: length of beacon_ies in octets
528 * @proberesp_ies: extra information element(s) to add into Probe Response
530 * @proberesp_ies_len: length of proberesp_ies in octets
531 * @assocresp_ies: extra information element(s) to add into (Re)Association
532 * Response frames or %NULL
533 * @assocresp_ies_len: length of assocresp_ies in octets
534 * @probe_resp_len: length of probe response template (@probe_resp)
535 * @probe_resp: probe response template (AP mode only)
537 struct cfg80211_beacon_data
{
538 const u8
*head
, *tail
;
539 const u8
*beacon_ies
;
540 const u8
*proberesp_ies
;
541 const u8
*assocresp_ies
;
542 const u8
*probe_resp
;
544 size_t head_len
, tail_len
;
545 size_t beacon_ies_len
;
546 size_t proberesp_ies_len
;
547 size_t assocresp_ies_len
;
548 size_t probe_resp_len
;
556 * struct cfg80211_acl_data - Access control list data
558 * @acl_policy: ACL policy to be applied on the station's
559 * entry specified by mac_addr
560 * @n_acl_entries: Number of MAC address entries passed
561 * @mac_addrs: List of MAC addresses of stations to be used for ACL
563 struct cfg80211_acl_data
{
564 enum nl80211_acl_policy acl_policy
;
568 struct mac_address mac_addrs
[];
572 * struct cfg80211_ap_settings - AP configuration
574 * Used to configure an AP interface.
576 * @chandef: defines the channel to use
577 * @beacon: beacon data
578 * @beacon_interval: beacon interval
579 * @dtim_period: DTIM period
580 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
582 * @ssid_len: length of @ssid
583 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
584 * @crypto: crypto settings
585 * @privacy: the BSS uses privacy
586 * @auth_type: Authentication type (algorithm)
587 * @inactivity_timeout: time in seconds to determine station's inactivity.
588 * @p2p_ctwindow: P2P CT Window
589 * @p2p_opp_ps: P2P opportunistic PS
590 * @acl: ACL configuration used by the drivers which has support for
591 * MAC address based access control
592 * @radar_required: set if radar detection is required
594 struct cfg80211_ap_settings
{
595 struct cfg80211_chan_def chandef
;
597 struct cfg80211_beacon_data beacon
;
599 int beacon_interval
, dtim_period
;
602 enum nl80211_hidden_ssid hidden_ssid
;
603 struct cfg80211_crypto_settings crypto
;
605 enum nl80211_auth_type auth_type
;
606 int inactivity_timeout
;
609 const struct cfg80211_acl_data
*acl
;
614 * enum station_parameters_apply_mask - station parameter values to apply
615 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
616 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
617 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
619 * Not all station parameters have in-band "no change" signalling,
620 * for those that don't these flags will are used.
622 enum station_parameters_apply_mask
{
623 STATION_PARAM_APPLY_UAPSD
= BIT(0),
624 STATION_PARAM_APPLY_CAPABILITY
= BIT(1),
625 STATION_PARAM_APPLY_PLINK_STATE
= BIT(2),
629 * struct station_parameters - station parameters
631 * Used to change and create a new station.
633 * @vlan: vlan interface station should belong to
634 * @supported_rates: supported rates in IEEE 802.11 format
635 * (or NULL for no change)
636 * @supported_rates_len: number of supported rates
637 * @sta_flags_mask: station flags that changed
638 * (bitmask of BIT(NL80211_STA_FLAG_...))
639 * @sta_flags_set: station flags values
640 * (bitmask of BIT(NL80211_STA_FLAG_...))
641 * @listen_interval: listen interval or -1 for no change
642 * @aid: AID or zero for no change
643 * @plink_action: plink action to take
644 * @plink_state: set the peer link state for a station
645 * @ht_capa: HT capabilities of station
646 * @vht_capa: VHT capabilities of station
647 * @uapsd_queues: bitmap of queues configured for uapsd. same format
648 * as the AC bitmap in the QoS info field
649 * @max_sp: max Service Period. same format as the MAX_SP in the
650 * QoS info field (but already shifted down)
651 * @sta_modify_mask: bitmap indicating which parameters changed
652 * (for those that don't have a natural "no change" value),
653 * see &enum station_parameters_apply_mask
654 * @local_pm: local link-specific mesh power save mode (no change when set
656 * @capability: station capability
657 * @ext_capab: extended capabilities of the station
658 * @ext_capab_len: number of extended capabilities
660 struct station_parameters
{
661 const u8
*supported_rates
;
662 struct net_device
*vlan
;
663 u32 sta_flags_mask
, sta_flags_set
;
667 u8 supported_rates_len
;
670 const struct ieee80211_ht_cap
*ht_capa
;
671 const struct ieee80211_vht_cap
*vht_capa
;
674 enum nl80211_mesh_power_mode local_pm
;
681 * enum cfg80211_station_type - the type of station being modified
682 * @CFG80211_STA_AP_CLIENT: client of an AP interface
683 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
684 * the AP MLME in the device
685 * @CFG80211_STA_AP_STA: AP station on managed interface
686 * @CFG80211_STA_IBSS: IBSS station
687 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
688 * while TDLS setup is in progress, it moves out of this state when
689 * being marked authorized; use this only if TDLS with external setup is
691 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
692 * entry that is operating, has been marked authorized by userspace)
693 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
694 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
696 enum cfg80211_station_type
{
697 CFG80211_STA_AP_CLIENT
,
698 CFG80211_STA_AP_MLME_CLIENT
,
701 CFG80211_STA_TDLS_PEER_SETUP
,
702 CFG80211_STA_TDLS_PEER_ACTIVE
,
703 CFG80211_STA_MESH_PEER_KERNEL
,
704 CFG80211_STA_MESH_PEER_USER
,
708 * cfg80211_check_station_change - validate parameter changes
709 * @wiphy: the wiphy this operates on
710 * @params: the new parameters for a station
711 * @statype: the type of station being modified
713 * Utility function for the @change_station driver method. Call this function
714 * with the appropriate station type looking up the station (and checking that
715 * it exists). It will verify whether the station change is acceptable, and if
716 * not will return an error code. Note that it may modify the parameters for
717 * backward compatibility reasons, so don't use them before calling this.
719 int cfg80211_check_station_change(struct wiphy
*wiphy
,
720 struct station_parameters
*params
,
721 enum cfg80211_station_type statype
);
724 * enum station_info_flags - station information flags
726 * Used by the driver to indicate which info in &struct station_info
727 * it has filled in during get_station() or dump_station().
729 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
730 * @STATION_INFO_RX_BYTES: @rx_bytes filled
731 * @STATION_INFO_TX_BYTES: @tx_bytes filled
732 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
733 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
734 * @STATION_INFO_LLID: @llid filled
735 * @STATION_INFO_PLID: @plid filled
736 * @STATION_INFO_PLINK_STATE: @plink_state filled
737 * @STATION_INFO_SIGNAL: @signal filled
738 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
739 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
740 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
741 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
742 * @STATION_INFO_TX_RETRIES: @tx_retries filled
743 * @STATION_INFO_TX_FAILED: @tx_failed filled
744 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
745 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
746 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
747 * @STATION_INFO_BSS_PARAM: @bss_param filled
748 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
749 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
750 * @STATION_INFO_STA_FLAGS: @sta_flags filled
751 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
752 * @STATION_INFO_T_OFFSET: @t_offset filled
753 * @STATION_INFO_LOCAL_PM: @local_pm filled
754 * @STATION_INFO_PEER_PM: @peer_pm filled
755 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
756 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
757 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
759 enum station_info_flags
{
760 STATION_INFO_INACTIVE_TIME
= 1<<0,
761 STATION_INFO_RX_BYTES
= 1<<1,
762 STATION_INFO_TX_BYTES
= 1<<2,
763 STATION_INFO_LLID
= 1<<3,
764 STATION_INFO_PLID
= 1<<4,
765 STATION_INFO_PLINK_STATE
= 1<<5,
766 STATION_INFO_SIGNAL
= 1<<6,
767 STATION_INFO_TX_BITRATE
= 1<<7,
768 STATION_INFO_RX_PACKETS
= 1<<8,
769 STATION_INFO_TX_PACKETS
= 1<<9,
770 STATION_INFO_TX_RETRIES
= 1<<10,
771 STATION_INFO_TX_FAILED
= 1<<11,
772 STATION_INFO_RX_DROP_MISC
= 1<<12,
773 STATION_INFO_SIGNAL_AVG
= 1<<13,
774 STATION_INFO_RX_BITRATE
= 1<<14,
775 STATION_INFO_BSS_PARAM
= 1<<15,
776 STATION_INFO_CONNECTED_TIME
= 1<<16,
777 STATION_INFO_ASSOC_REQ_IES
= 1<<17,
778 STATION_INFO_STA_FLAGS
= 1<<18,
779 STATION_INFO_BEACON_LOSS_COUNT
= 1<<19,
780 STATION_INFO_T_OFFSET
= 1<<20,
781 STATION_INFO_LOCAL_PM
= 1<<21,
782 STATION_INFO_PEER_PM
= 1<<22,
783 STATION_INFO_NONPEER_PM
= 1<<23,
784 STATION_INFO_RX_BYTES64
= 1<<24,
785 STATION_INFO_TX_BYTES64
= 1<<25,
786 STATION_INFO_CHAIN_SIGNAL
= 1<<26,
787 STATION_INFO_CHAIN_SIGNAL_AVG
= 1<<27,
791 * enum station_info_rate_flags - bitrate info flags
793 * Used by the driver to indicate the specific rate transmission
794 * type for 802.11n transmissions.
796 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
797 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
798 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
799 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
800 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
801 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
802 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
803 * @RATE_INFO_FLAGS_60G: 60GHz MCS
805 enum rate_info_flags
{
806 RATE_INFO_FLAGS_MCS
= BIT(0),
807 RATE_INFO_FLAGS_VHT_MCS
= BIT(1),
808 RATE_INFO_FLAGS_40_MHZ_WIDTH
= BIT(2),
809 RATE_INFO_FLAGS_80_MHZ_WIDTH
= BIT(3),
810 RATE_INFO_FLAGS_80P80_MHZ_WIDTH
= BIT(4),
811 RATE_INFO_FLAGS_160_MHZ_WIDTH
= BIT(5),
812 RATE_INFO_FLAGS_SHORT_GI
= BIT(6),
813 RATE_INFO_FLAGS_60G
= BIT(7),
817 * struct rate_info - bitrate information
819 * Information about a receiving or transmitting bitrate
821 * @flags: bitflag of flags from &enum rate_info_flags
822 * @mcs: mcs index if struct describes a 802.11n bitrate
823 * @legacy: bitrate in 100kbit/s for 802.11abg
824 * @nss: number of streams (VHT only)
834 * enum station_info_rate_flags - bitrate info flags
836 * Used by the driver to indicate the specific rate transmission
837 * type for 802.11n transmissions.
839 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
840 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
841 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
843 enum bss_param_flags
{
844 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
845 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
846 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
850 * struct sta_bss_parameters - BSS parameters for the attached station
852 * Information about the currently associated BSS
854 * @flags: bitflag of flags from &enum bss_param_flags
855 * @dtim_period: DTIM period for the BSS
856 * @beacon_interval: beacon interval
858 struct sta_bss_parameters
{
864 #define IEEE80211_MAX_CHAINS 4
867 * struct station_info - station information
869 * Station information filled by driver for get_station() and dump_station.
871 * @filled: bitflag of flags from &enum station_info_flags
872 * @connected_time: time(in secs) since a station is last connected
873 * @inactive_time: time since last station activity (tx/rx) in milliseconds
874 * @rx_bytes: bytes received from this station
875 * @tx_bytes: bytes transmitted to this station
876 * @llid: mesh local link id
877 * @plid: mesh peer link id
878 * @plink_state: mesh peer link state
879 * @signal: The signal strength, type depends on the wiphy's signal_type.
880 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
881 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
882 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
883 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
884 * @chain_signal: per-chain signal strength of last received packet in dBm
885 * @chain_signal_avg: per-chain signal strength average in dBm
886 * @txrate: current unicast bitrate from this station
887 * @rxrate: current unicast bitrate to this station
888 * @rx_packets: packets received from this station
889 * @tx_packets: packets transmitted to this station
890 * @tx_retries: cumulative retry counts
891 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
892 * @rx_dropped_misc: Dropped for un-specified reason.
893 * @bss_param: current BSS parameters
894 * @generation: generation number for nl80211 dumps.
895 * This number should increase every time the list of stations
896 * changes, i.e. when a station is added or removed, so that
897 * userspace can tell whether it got a consistent snapshot.
898 * @assoc_req_ies: IEs from (Re)Association Request.
899 * This is used only when in AP mode with drivers that do not use
900 * user space MLME/SME implementation. The information is provided for
901 * the cfg80211_new_sta() calls to notify user space of the IEs.
902 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
903 * @sta_flags: station flags mask & values
904 * @beacon_loss_count: Number of times beacon loss event has triggered.
905 * @t_offset: Time offset of the station relative to this host.
906 * @local_pm: local mesh STA power save mode
907 * @peer_pm: peer mesh STA power save mode
908 * @nonpeer_pm: non-peer mesh STA power save mode
910 struct station_info
{
923 s8 chain_signal
[IEEE80211_MAX_CHAINS
];
924 s8 chain_signal_avg
[IEEE80211_MAX_CHAINS
];
926 struct rate_info txrate
;
927 struct rate_info rxrate
;
933 struct sta_bss_parameters bss_param
;
934 struct nl80211_sta_flag_update sta_flags
;
938 const u8
*assoc_req_ies
;
939 size_t assoc_req_ies_len
;
941 u32 beacon_loss_count
;
943 enum nl80211_mesh_power_mode local_pm
;
944 enum nl80211_mesh_power_mode peer_pm
;
945 enum nl80211_mesh_power_mode nonpeer_pm
;
948 * Note: Add a new enum station_info_flags value for each new field and
949 * use it to check which fields are initialized.
954 * enum monitor_flags - monitor flags
956 * Monitor interface configuration flags. Note that these must be the bits
957 * according to the nl80211 flags.
959 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
960 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
961 * @MONITOR_FLAG_CONTROL: pass control frames
962 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
963 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
964 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
967 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
968 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
969 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
970 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
971 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
972 MONITOR_FLAG_ACTIVE
= 1<<NL80211_MNTR_FLAG_ACTIVE
,
976 * enum mpath_info_flags - mesh path information flags
978 * Used by the driver to indicate which info in &struct mpath_info it has filled
979 * in during get_station() or dump_station().
981 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
982 * @MPATH_INFO_SN: @sn filled
983 * @MPATH_INFO_METRIC: @metric filled
984 * @MPATH_INFO_EXPTIME: @exptime filled
985 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
986 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
987 * @MPATH_INFO_FLAGS: @flags filled
989 enum mpath_info_flags
{
990 MPATH_INFO_FRAME_QLEN
= BIT(0),
991 MPATH_INFO_SN
= BIT(1),
992 MPATH_INFO_METRIC
= BIT(2),
993 MPATH_INFO_EXPTIME
= BIT(3),
994 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
995 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
996 MPATH_INFO_FLAGS
= BIT(6),
1000 * struct mpath_info - mesh path information
1002 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1004 * @filled: bitfield of flags from &enum mpath_info_flags
1005 * @frame_qlen: number of queued frames for this destination
1006 * @sn: target sequence number
1007 * @metric: metric (cost) of this mesh path
1008 * @exptime: expiration time for the mesh path from now, in msecs
1009 * @flags: mesh path flags
1010 * @discovery_timeout: total mesh path discovery timeout, in msecs
1011 * @discovery_retries: mesh path discovery retries
1012 * @generation: generation number for nl80211 dumps.
1013 * This number should increase every time the list of mesh paths
1014 * changes, i.e. when a station is added or removed, so that
1015 * userspace can tell whether it got a consistent snapshot.
1023 u32 discovery_timeout
;
1024 u8 discovery_retries
;
1031 * struct bss_parameters - BSS parameters
1033 * Used to change BSS parameters (mainly for AP mode).
1035 * @use_cts_prot: Whether to use CTS protection
1036 * (0 = no, 1 = yes, -1 = do not change)
1037 * @use_short_preamble: Whether the use of short preambles is allowed
1038 * (0 = no, 1 = yes, -1 = do not change)
1039 * @use_short_slot_time: Whether the use of short slot time is allowed
1040 * (0 = no, 1 = yes, -1 = do not change)
1041 * @basic_rates: basic rates in IEEE 802.11 format
1042 * (or NULL for no change)
1043 * @basic_rates_len: number of basic rates
1044 * @ap_isolate: do not forward packets between connected stations
1045 * @ht_opmode: HT Operation mode
1046 * (u16 = opmode, -1 = do not change)
1047 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1048 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1050 struct bss_parameters
{
1052 int use_short_preamble
;
1053 int use_short_slot_time
;
1058 s8 p2p_ctwindow
, p2p_opp_ps
;
1062 * struct mesh_config - 802.11s mesh configuration
1064 * These parameters can be changed while the mesh is active.
1066 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1067 * by the Mesh Peering Open message
1068 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1069 * used by the Mesh Peering Open message
1070 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1071 * the mesh peering management to close a mesh peering
1072 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1074 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1075 * be sent to establish a new peer link instance in a mesh
1076 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1077 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1079 * @auto_open_plinks: whether we should automatically open peer links when we
1080 * detect compatible mesh peers
1081 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1082 * synchronize to for 11s default synchronization method
1083 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1084 * that an originator mesh STA can send to a particular path target
1085 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1086 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1087 * a path discovery in milliseconds
1088 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1089 * receiving a PREQ shall consider the forwarding information from the
1090 * root to be valid. (TU = time unit)
1091 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1092 * which a mesh STA can send only one action frame containing a PREQ
1094 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1095 * which a mesh STA can send only one Action frame containing a PERR
1097 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1098 * it takes for an HWMP information element to propagate across the mesh
1099 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1100 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1101 * announcements are transmitted
1102 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1103 * station has access to a broader network beyond the MBSS. (This is
1104 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1105 * only means that the station will announce others it's a mesh gate, but
1106 * not necessarily using the gate announcement protocol. Still keeping the
1107 * same nomenclature to be in sync with the spec)
1108 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1109 * entity (default is TRUE - forwarding entity)
1110 * @rssi_threshold: the threshold for average signal strength of candidate
1111 * station to establish a peer link
1112 * @ht_opmode: mesh HT protection mode
1114 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1115 * receiving a proactive PREQ shall consider the forwarding information to
1116 * the root mesh STA to be valid.
1118 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1119 * PREQs are transmitted.
1120 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1121 * during which a mesh STA can send only one Action frame containing
1122 * a PREQ element for root path confirmation.
1123 * @power_mode: The default mesh power save mode which will be the initial
1124 * setting for new peer links.
1125 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1126 * after transmitting its beacon.
1128 struct mesh_config
{
1129 u16 dot11MeshRetryTimeout
;
1130 u16 dot11MeshConfirmTimeout
;
1131 u16 dot11MeshHoldingTimeout
;
1132 u16 dot11MeshMaxPeerLinks
;
1133 u8 dot11MeshMaxRetries
;
1136 bool auto_open_plinks
;
1137 u32 dot11MeshNbrOffsetMaxNeighbor
;
1138 u8 dot11MeshHWMPmaxPREQretries
;
1139 u32 path_refresh_time
;
1140 u16 min_discovery_timeout
;
1141 u32 dot11MeshHWMPactivePathTimeout
;
1142 u16 dot11MeshHWMPpreqMinInterval
;
1143 u16 dot11MeshHWMPperrMinInterval
;
1144 u16 dot11MeshHWMPnetDiameterTraversalTime
;
1145 u8 dot11MeshHWMPRootMode
;
1146 u16 dot11MeshHWMPRannInterval
;
1147 bool dot11MeshGateAnnouncementProtocol
;
1148 bool dot11MeshForwarding
;
1151 u32 dot11MeshHWMPactivePathToRootTimeout
;
1152 u16 dot11MeshHWMProotInterval
;
1153 u16 dot11MeshHWMPconfirmationInterval
;
1154 enum nl80211_mesh_power_mode power_mode
;
1155 u16 dot11MeshAwakeWindowDuration
;
1159 * struct mesh_setup - 802.11s mesh setup configuration
1160 * @chandef: defines the channel to use
1161 * @mesh_id: the mesh ID
1162 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1163 * @sync_method: which synchronization method to use
1164 * @path_sel_proto: which path selection protocol to use
1165 * @path_metric: which metric to use
1166 * @auth_id: which authentication method this mesh is using
1167 * @ie: vendor information elements (optional)
1168 * @ie_len: length of vendor information elements
1169 * @is_authenticated: this mesh requires authentication
1170 * @is_secure: this mesh uses security
1171 * @user_mpm: userspace handles all MPM functions
1172 * @dtim_period: DTIM period to use
1173 * @beacon_interval: beacon interval to use
1174 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1176 * These parameters are fixed when the mesh is created.
1179 struct cfg80211_chan_def chandef
;
1188 bool is_authenticated
;
1192 u16 beacon_interval
;
1193 int mcast_rate
[IEEE80211_NUM_BANDS
];
1197 * struct ieee80211_txq_params - TX queue parameters
1198 * @ac: AC identifier
1199 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1200 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1202 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1204 * @aifs: Arbitration interframe space [0..255]
1206 struct ieee80211_txq_params
{
1215 * DOC: Scanning and BSS list handling
1217 * The scanning process itself is fairly simple, but cfg80211 offers quite
1218 * a bit of helper functionality. To start a scan, the scan operation will
1219 * be invoked with a scan definition. This scan definition contains the
1220 * channels to scan, and the SSIDs to send probe requests for (including the
1221 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1222 * probe. Additionally, a scan request may contain extra information elements
1223 * that should be added to the probe request. The IEs are guaranteed to be
1224 * well-formed, and will not exceed the maximum length the driver advertised
1225 * in the wiphy structure.
1227 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1228 * it is responsible for maintaining the BSS list; the driver should not
1229 * maintain a list itself. For this notification, various functions exist.
1231 * Since drivers do not maintain a BSS list, there are also a number of
1232 * functions to search for a BSS and obtain information about it from the
1233 * BSS structure cfg80211 maintains. The BSS list is also made available
1238 * struct cfg80211_ssid - SSID description
1240 * @ssid_len: length of the ssid
1242 struct cfg80211_ssid
{
1243 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1248 * struct cfg80211_scan_request - scan request description
1250 * @ssids: SSIDs to scan for (active scan only)
1251 * @n_ssids: number of SSIDs
1252 * @channels: channels to scan on.
1253 * @n_channels: total number of channels to scan
1254 * @ie: optional information element(s) to add into Probe Request or %NULL
1255 * @ie_len: length of ie in octets
1256 * @flags: bit field of flags controlling operation
1257 * @rates: bitmap of rates to advertise for each band
1258 * @wiphy: the wiphy this was for
1259 * @scan_start: time (in jiffies) when the scan started
1260 * @wdev: the wireless device to scan for
1261 * @aborted: (internal) scan request was notified as aborted
1262 * @notified: (internal) scan request was notified as done or aborted
1263 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1265 struct cfg80211_scan_request
{
1266 struct cfg80211_ssid
*ssids
;
1273 u32 rates
[IEEE80211_NUM_BANDS
];
1275 struct wireless_dev
*wdev
;
1278 struct wiphy
*wiphy
;
1279 unsigned long scan_start
;
1280 bool aborted
, notified
;
1284 struct ieee80211_channel
*channels
[0];
1288 * struct cfg80211_match_set - sets of attributes to match
1290 * @ssid: SSID to be matched
1292 struct cfg80211_match_set
{
1293 struct cfg80211_ssid ssid
;
1297 * struct cfg80211_sched_scan_request - scheduled scan request description
1299 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1300 * @n_ssids: number of SSIDs
1301 * @n_channels: total number of channels to scan
1302 * @interval: interval between each scheduled scan cycle
1303 * @ie: optional information element(s) to add into Probe Request or %NULL
1304 * @ie_len: length of ie in octets
1305 * @flags: bit field of flags controlling operation
1306 * @match_sets: sets of parameters to be matched for a scan result
1307 * entry to be considered valid and to be passed to the host
1308 * (others are filtered out).
1309 * If ommited, all results are passed.
1310 * @n_match_sets: number of match sets
1311 * @wiphy: the wiphy this was for
1312 * @dev: the interface
1313 * @scan_start: start time of the scheduled scan
1314 * @channels: channels to scan
1315 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1317 struct cfg80211_sched_scan_request
{
1318 struct cfg80211_ssid
*ssids
;
1325 struct cfg80211_match_set
*match_sets
;
1330 struct wiphy
*wiphy
;
1331 struct net_device
*dev
;
1332 unsigned long scan_start
;
1335 struct ieee80211_channel
*channels
[0];
1339 * enum cfg80211_signal_type - signal type
1341 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1342 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1343 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1345 enum cfg80211_signal_type
{
1346 CFG80211_SIGNAL_TYPE_NONE
,
1347 CFG80211_SIGNAL_TYPE_MBM
,
1348 CFG80211_SIGNAL_TYPE_UNSPEC
,
1352 * struct cfg80211_bss_ie_data - BSS entry IE data
1353 * @tsf: TSF contained in the frame that carried these IEs
1354 * @rcu_head: internal use, for freeing
1355 * @len: length of the IEs
1358 struct cfg80211_bss_ies
{
1360 struct rcu_head rcu_head
;
1366 * struct cfg80211_bss - BSS description
1368 * This structure describes a BSS (which may also be a mesh network)
1369 * for use in scan results and similar.
1371 * @channel: channel this BSS is on
1372 * @bssid: BSSID of the BSS
1373 * @beacon_interval: the beacon interval as from the frame
1374 * @capability: the capability field in host byte order
1375 * @ies: the information elements (Note that there is no guarantee that these
1376 * are well-formed!); this is a pointer to either the beacon_ies or
1377 * proberesp_ies depending on whether Probe Response frame has been
1378 * received. It is always non-%NULL.
1379 * @beacon_ies: the information elements from the last Beacon frame
1380 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1381 * own the beacon_ies, but they're just pointers to the ones from the
1382 * @hidden_beacon_bss struct)
1383 * @proberesp_ies: the information elements from the last Probe Response frame
1384 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1385 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1386 * that holds the beacon data. @beacon_ies is still valid, of course, and
1387 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1388 * @signal: signal strength value (type depends on the wiphy's signal_type)
1389 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1391 struct cfg80211_bss
{
1392 struct ieee80211_channel
*channel
;
1394 const struct cfg80211_bss_ies __rcu
*ies
;
1395 const struct cfg80211_bss_ies __rcu
*beacon_ies
;
1396 const struct cfg80211_bss_ies __rcu
*proberesp_ies
;
1398 struct cfg80211_bss
*hidden_beacon_bss
;
1402 u16 beacon_interval
;
1407 u8 priv
[0] __aligned(sizeof(void *));
1411 * ieee80211_bss_get_ie - find IE with given ID
1412 * @bss: the bss to search
1415 * Note that the return value is an RCU-protected pointer, so
1416 * rcu_read_lock() must be held when calling this function.
1417 * Return: %NULL if not found.
1419 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1423 * struct cfg80211_auth_request - Authentication request data
1425 * This structure provides information needed to complete IEEE 802.11
1428 * @bss: The BSS to authenticate with.
1429 * @auth_type: Authentication type (algorithm)
1430 * @ie: Extra IEs to add to Authentication frame or %NULL
1431 * @ie_len: Length of ie buffer in octets
1432 * @key_len: length of WEP key for shared key authentication
1433 * @key_idx: index of WEP key for shared key authentication
1434 * @key: WEP key for shared key authentication
1435 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1436 * Authentication transaction sequence number field.
1437 * @sae_data_len: Length of sae_data buffer in octets
1439 struct cfg80211_auth_request
{
1440 struct cfg80211_bss
*bss
;
1443 enum nl80211_auth_type auth_type
;
1445 u8 key_len
, key_idx
;
1447 size_t sae_data_len
;
1451 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1453 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1454 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1456 enum cfg80211_assoc_req_flags
{
1457 ASSOC_REQ_DISABLE_HT
= BIT(0),
1458 ASSOC_REQ_DISABLE_VHT
= BIT(1),
1462 * struct cfg80211_assoc_request - (Re)Association request data
1464 * This structure provides information needed to complete IEEE 802.11
1466 * @bss: The BSS to associate with. If the call is successful the driver
1467 * is given a reference that it must release, normally via a call to
1468 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1469 * call to cfg80211_put_bss() (in addition to calling
1470 * cfg80211_send_assoc_timeout())
1471 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1472 * @ie_len: Length of ie buffer in octets
1473 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1474 * @crypto: crypto settings
1475 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1476 * @flags: See &enum cfg80211_assoc_req_flags
1477 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1478 * will be used in ht_capa. Un-supported values will be ignored.
1479 * @ht_capa_mask: The bits of ht_capa which are to be used.
1480 * @vht_capa: VHT capability override
1481 * @vht_capa_mask: VHT capability mask indicating which fields to use
1483 struct cfg80211_assoc_request
{
1484 struct cfg80211_bss
*bss
;
1485 const u8
*ie
, *prev_bssid
;
1487 struct cfg80211_crypto_settings crypto
;
1490 struct ieee80211_ht_cap ht_capa
;
1491 struct ieee80211_ht_cap ht_capa_mask
;
1492 struct ieee80211_vht_cap vht_capa
, vht_capa_mask
;
1496 * struct cfg80211_deauth_request - Deauthentication request data
1498 * This structure provides information needed to complete IEEE 802.11
1501 * @bssid: the BSSID of the BSS to deauthenticate from
1502 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1503 * @ie_len: Length of ie buffer in octets
1504 * @reason_code: The reason code for the deauthentication
1505 * @local_state_change: if set, change local state only and
1506 * do not set a deauth frame
1508 struct cfg80211_deauth_request
{
1513 bool local_state_change
;
1517 * struct cfg80211_disassoc_request - Disassociation request data
1519 * This structure provides information needed to complete IEEE 802.11
1522 * @bss: the BSS to disassociate from
1523 * @ie: Extra IEs to add to Disassociation frame or %NULL
1524 * @ie_len: Length of ie buffer in octets
1525 * @reason_code: The reason code for the disassociation
1526 * @local_state_change: This is a request for a local state only, i.e., no
1527 * Disassociation frame is to be transmitted.
1529 struct cfg80211_disassoc_request
{
1530 struct cfg80211_bss
*bss
;
1534 bool local_state_change
;
1538 * struct cfg80211_ibss_params - IBSS parameters
1540 * This structure defines the IBSS parameters for the join_ibss()
1543 * @ssid: The SSID, will always be non-null.
1544 * @ssid_len: The length of the SSID, will always be non-zero.
1545 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1546 * search for IBSSs with a different BSSID.
1547 * @chandef: defines the channel to use if no other IBSS to join can be found
1548 * @channel_fixed: The channel should be fixed -- do not search for
1549 * IBSSs to join on other channels.
1550 * @ie: information element(s) to include in the beacon
1551 * @ie_len: length of that
1552 * @beacon_interval: beacon interval to use
1553 * @privacy: this is a protected network, keys will be configured
1555 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1556 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1557 * required to assume that the port is unauthorized until authorized by
1558 * user space. Otherwise, port is marked authorized by default.
1559 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1560 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1562 struct cfg80211_ibss_params
{
1565 struct cfg80211_chan_def chandef
;
1567 u8 ssid_len
, ie_len
;
1568 u16 beacon_interval
;
1573 int mcast_rate
[IEEE80211_NUM_BANDS
];
1577 * struct cfg80211_connect_params - Connection parameters
1579 * This structure provides information needed to complete IEEE 802.11
1580 * authentication and association.
1582 * @channel: The channel to use or %NULL if not specified (auto-select based
1584 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1587 * @ssid_len: Length of ssid in octets
1588 * @auth_type: Authentication type (algorithm)
1589 * @ie: IEs for association request
1590 * @ie_len: Length of assoc_ie in octets
1591 * @privacy: indicates whether privacy-enabled APs should be used
1592 * @mfp: indicate whether management frame protection is used
1593 * @crypto: crypto settings
1594 * @key_len: length of WEP key for shared key authentication
1595 * @key_idx: index of WEP key for shared key authentication
1596 * @key: WEP key for shared key authentication
1597 * @flags: See &enum cfg80211_assoc_req_flags
1598 * @bg_scan_period: Background scan period in seconds
1599 * or -1 to indicate that default value is to be used.
1600 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1601 * will be used in ht_capa. Un-supported values will be ignored.
1602 * @ht_capa_mask: The bits of ht_capa which are to be used.
1603 * @vht_capa: VHT Capability overrides
1604 * @vht_capa_mask: The bits of vht_capa which are to be used.
1606 struct cfg80211_connect_params
{
1607 struct ieee80211_channel
*channel
;
1611 enum nl80211_auth_type auth_type
;
1615 enum nl80211_mfp mfp
;
1616 struct cfg80211_crypto_settings crypto
;
1618 u8 key_len
, key_idx
;
1621 struct ieee80211_ht_cap ht_capa
;
1622 struct ieee80211_ht_cap ht_capa_mask
;
1623 struct ieee80211_vht_cap vht_capa
;
1624 struct ieee80211_vht_cap vht_capa_mask
;
1628 * enum wiphy_params_flags - set_wiphy_params bitfield values
1629 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1630 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1631 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1632 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1633 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1635 enum wiphy_params_flags
{
1636 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1637 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1638 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1639 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1640 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1644 * cfg80211_bitrate_mask - masks for bitrate control
1646 struct cfg80211_bitrate_mask
{
1649 u8 mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1650 } control
[IEEE80211_NUM_BANDS
];
1653 * struct cfg80211_pmksa - PMK Security Association
1655 * This structure is passed to the set/del_pmksa() method for PMKSA
1658 * @bssid: The AP's BSSID.
1659 * @pmkid: The PMK material itself.
1661 struct cfg80211_pmksa
{
1667 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1668 * @mask: bitmask where to match pattern and where to ignore bytes,
1669 * one bit per byte, in same format as nl80211
1670 * @pattern: bytes to match where bitmask is 1
1671 * @pattern_len: length of pattern (in bytes)
1672 * @pkt_offset: packet offset (in bytes)
1674 * Internal note: @mask and @pattern are allocated in one chunk of
1675 * memory, free @mask only!
1677 struct cfg80211_wowlan_trig_pkt_pattern
{
1684 * struct cfg80211_wowlan_tcp - TCP connection parameters
1686 * @sock: (internal) socket for source port allocation
1687 * @src: source IP address
1688 * @dst: destination IP address
1689 * @dst_mac: destination MAC address
1690 * @src_port: source port
1691 * @dst_port: destination port
1692 * @payload_len: data payload length
1693 * @payload: data payload buffer
1694 * @payload_seq: payload sequence stamping configuration
1695 * @data_interval: interval at which to send data packets
1696 * @wake_len: wakeup payload match length
1697 * @wake_data: wakeup payload match data
1698 * @wake_mask: wakeup payload match mask
1699 * @tokens_size: length of the tokens buffer
1700 * @payload_tok: payload token usage configuration
1702 struct cfg80211_wowlan_tcp
{
1703 struct socket
*sock
;
1705 u16 src_port
, dst_port
;
1706 u8 dst_mac
[ETH_ALEN
];
1709 struct nl80211_wowlan_tcp_data_seq payload_seq
;
1712 const u8
*wake_data
, *wake_mask
;
1714 /* must be last, variable member */
1715 struct nl80211_wowlan_tcp_data_token payload_tok
;
1719 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1721 * This structure defines the enabled WoWLAN triggers for the device.
1722 * @any: wake up on any activity -- special trigger if device continues
1723 * operating as normal during suspend
1724 * @disconnect: wake up if getting disconnected
1725 * @magic_pkt: wake up on receiving magic packet
1726 * @patterns: wake up on receiving packet matching a pattern
1727 * @n_patterns: number of patterns
1728 * @gtk_rekey_failure: wake up on GTK rekey failure
1729 * @eap_identity_req: wake up on EAP identity request packet
1730 * @four_way_handshake: wake up on 4-way handshake
1731 * @rfkill_release: wake up when rfkill is released
1732 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
1733 * NULL if not configured.
1735 struct cfg80211_wowlan
{
1736 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1737 eap_identity_req
, four_way_handshake
,
1739 struct cfg80211_wowlan_trig_pkt_pattern
*patterns
;
1740 struct cfg80211_wowlan_tcp
*tcp
;
1745 * struct cfg80211_wowlan_wakeup - wakeup report
1746 * @disconnect: woke up by getting disconnected
1747 * @magic_pkt: woke up by receiving magic packet
1748 * @gtk_rekey_failure: woke up by GTK rekey failure
1749 * @eap_identity_req: woke up by EAP identity request packet
1750 * @four_way_handshake: woke up by 4-way handshake
1751 * @rfkill_release: woke up by rfkill being released
1752 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
1753 * @packet_present_len: copied wakeup packet data
1754 * @packet_len: original wakeup packet length
1755 * @packet: The packet causing the wakeup, if any.
1756 * @packet_80211: For pattern match, magic packet and other data
1757 * frame triggers an 802.3 frame should be reported, for
1758 * disconnect due to deauth 802.11 frame. This indicates which
1760 * @tcp_match: TCP wakeup packet received
1761 * @tcp_connlost: TCP connection lost or failed to establish
1762 * @tcp_nomoretokens: TCP data ran out of tokens
1764 struct cfg80211_wowlan_wakeup
{
1765 bool disconnect
, magic_pkt
, gtk_rekey_failure
,
1766 eap_identity_req
, four_way_handshake
,
1767 rfkill_release
, packet_80211
,
1768 tcp_match
, tcp_connlost
, tcp_nomoretokens
;
1770 u32 packet_present_len
, packet_len
;
1775 * struct cfg80211_gtk_rekey_data - rekey data
1776 * @kek: key encryption key
1777 * @kck: key confirmation key
1778 * @replay_ctr: replay counter
1780 struct cfg80211_gtk_rekey_data
{
1781 u8 kek
[NL80211_KEK_LEN
];
1782 u8 kck
[NL80211_KCK_LEN
];
1783 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1787 * struct cfg80211_update_ft_ies_params - FT IE Information
1789 * This structure provides information needed to update the fast transition IE
1791 * @md: The Mobility Domain ID, 2 Octet value
1792 * @ie: Fast Transition IEs
1793 * @ie_len: Length of ft_ie in octets
1795 struct cfg80211_update_ft_ies_params
{
1802 * struct cfg80211_ops - backend description for wireless configuration
1804 * This struct is registered by fullmac card drivers and/or wireless stacks
1805 * in order to handle configuration requests on their interfaces.
1807 * All callbacks except where otherwise noted should return 0
1808 * on success or a negative error code.
1810 * All operations are currently invoked under rtnl for consistency with the
1811 * wireless extensions but this is subject to reevaluation as soon as this
1812 * code is used more widely and we have a first user without wext.
1814 * @suspend: wiphy device needs to be suspended. The variable @wow will
1815 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1816 * configured for the device.
1817 * @resume: wiphy device needs to be resumed
1818 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1819 * to call device_set_wakeup_enable() to enable/disable wakeup from
1822 * @add_virtual_intf: create a new virtual interface with the given name,
1823 * must set the struct wireless_dev's iftype. Beware: You must create
1824 * the new netdev in the wiphy's network namespace! Returns the struct
1825 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
1826 * also set the address member in the wdev.
1828 * @del_virtual_intf: remove the virtual interface
1830 * @change_virtual_intf: change type/configuration of virtual interface,
1831 * keep the struct wireless_dev's iftype updated.
1833 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1834 * when adding a group key.
1836 * @get_key: get information about the key with the given parameters.
1837 * @mac_addr will be %NULL when requesting information for a group
1838 * key. All pointers given to the @callback function need not be valid
1839 * after it returns. This function should return an error if it is
1840 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1842 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1843 * and @key_index, return -ENOENT if the key doesn't exist.
1845 * @set_default_key: set the default key on an interface
1847 * @set_default_mgmt_key: set the default management frame key on an interface
1849 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1851 * @start_ap: Start acting in AP mode defined by the parameters.
1852 * @change_beacon: Change the beacon parameters for an access point mode
1853 * interface. This should reject the call when AP mode wasn't started.
1854 * @stop_ap: Stop being an AP, including stopping beaconing.
1856 * @add_station: Add a new station.
1857 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1858 * @change_station: Modify a given station. Note that flags changes are not much
1859 * validated in cfg80211, in particular the auth/assoc/authorized flags
1860 * might come to the driver in invalid combinations -- make sure to check
1861 * them, also against the existing state! Drivers must call
1862 * cfg80211_check_station_change() to validate the information.
1863 * @get_station: get station information for the station identified by @mac
1864 * @dump_station: dump station callback -- resume dump at index @idx
1866 * @add_mpath: add a fixed mesh path
1867 * @del_mpath: delete a given mesh path
1868 * @change_mpath: change a given mesh path
1869 * @get_mpath: get a mesh path for the given parameters
1870 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1871 * @join_mesh: join the mesh network with the specified parameters
1872 * (invoked with the wireless_dev mutex held)
1873 * @leave_mesh: leave the current mesh network
1874 * (invoked with the wireless_dev mutex held)
1876 * @get_mesh_config: Get the current mesh configuration
1878 * @update_mesh_config: Update mesh parameters on a running mesh.
1879 * The mask is a bitfield which tells us which parameters to
1880 * set, and which to leave alone.
1882 * @change_bss: Modify parameters for a given BSS.
1884 * @set_txq_params: Set TX queue parameters
1886 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1887 * as it doesn't implement join_mesh and needs to set the channel to
1888 * join the mesh instead.
1890 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1891 * interfaces are active this callback should reject the configuration.
1892 * If no interfaces are active or the device is down, the channel should
1893 * be stored for when a monitor interface becomes active.
1895 * @scan: Request to do a scan. If returning zero, the scan request is given
1896 * the driver, and will be valid until passed to cfg80211_scan_done().
1897 * For scan results, call cfg80211_inform_bss(); you can call this outside
1898 * the scan/scan_done bracket too.
1900 * @auth: Request to authenticate with the specified peer
1901 * (invoked with the wireless_dev mutex held)
1902 * @assoc: Request to (re)associate with the specified peer
1903 * (invoked with the wireless_dev mutex held)
1904 * @deauth: Request to deauthenticate from the specified peer
1905 * (invoked with the wireless_dev mutex held)
1906 * @disassoc: Request to disassociate from the specified peer
1907 * (invoked with the wireless_dev mutex held)
1909 * @connect: Connect to the ESS with the specified parameters. When connected,
1910 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1911 * If the connection fails for some reason, call cfg80211_connect_result()
1912 * with the status from the AP.
1913 * (invoked with the wireless_dev mutex held)
1914 * @disconnect: Disconnect from the BSS/ESS.
1915 * (invoked with the wireless_dev mutex held)
1917 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1918 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1920 * (invoked with the wireless_dev mutex held)
1921 * @leave_ibss: Leave the IBSS.
1922 * (invoked with the wireless_dev mutex held)
1924 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
1927 * @set_wiphy_params: Notify that wiphy parameters have changed;
1928 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1929 * have changed. The actual parameter values are available in
1930 * struct wiphy. If returning an error, no value should be changed.
1932 * @set_tx_power: set the transmit power according to the parameters,
1933 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
1934 * wdev may be %NULL if power was set for the wiphy, and will
1935 * always be %NULL unless the driver supports per-vif TX power
1936 * (as advertised by the nl80211 feature flag.)
1937 * @get_tx_power: store the current TX power into the dbm variable;
1938 * return 0 if successful
1940 * @set_wds_peer: set the WDS peer for a WDS interface
1942 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1943 * functions to adjust rfkill hw state
1945 * @dump_survey: get site survey information.
1947 * @remain_on_channel: Request the driver to remain awake on the specified
1948 * channel for the specified duration to complete an off-channel
1949 * operation (e.g., public action frame exchange). When the driver is
1950 * ready on the requested channel, it must indicate this with an event
1951 * notification by calling cfg80211_ready_on_channel().
1952 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1953 * This allows the operation to be terminated prior to timeout based on
1954 * the duration value.
1955 * @mgmt_tx: Transmit a management frame.
1956 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1957 * frame on another channel
1959 * @testmode_cmd: run a test mode command
1960 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1961 * used by the function, but 0 and 1 must not be touched. Additionally,
1962 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1963 * dump and return to userspace with an error, so be careful. If any data
1964 * was passed in from userspace then the data/len arguments will be present
1965 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1967 * @set_bitrate_mask: set the bitrate mask configuration
1969 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1970 * devices running firmwares capable of generating the (re) association
1971 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1972 * @del_pmksa: Delete a cached PMKID.
1973 * @flush_pmksa: Flush all cached PMKIDs.
1974 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1975 * allows the driver to adjust the dynamic ps timeout value.
1976 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1977 * @set_cqm_txe_config: Configure connection quality monitor TX error
1979 * @sched_scan_start: Tell the driver to start a scheduled scan.
1980 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan.
1982 * @mgmt_frame_register: Notify driver that a management frame type was
1983 * registered. Note that this callback may not sleep, and cannot run
1984 * concurrently with itself.
1986 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1987 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1988 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1989 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1991 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1993 * @set_ringparam: Set tx and rx ring sizes.
1995 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1997 * @tdls_mgmt: Transmit a TDLS management frame.
1998 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2000 * @probe_client: probe an associated client, must return a cookie that it
2001 * later passes to cfg80211_probe_status().
2003 * @set_noack_map: Set the NoAck Map for the TIDs.
2005 * @get_et_sset_count: Ethtool API to get string-set count.
2006 * See @ethtool_ops.get_sset_count
2008 * @get_et_stats: Ethtool API to get a set of u64 stats.
2009 * See @ethtool_ops.get_ethtool_stats
2011 * @get_et_strings: Ethtool API to get a set of strings to describe stats
2012 * and perhaps other supported types of ethtool data-sets.
2013 * See @ethtool_ops.get_strings
2015 * @get_channel: Get the current operating channel for the virtual interface.
2016 * For monitor interfaces, it should return %NULL unless there's a single
2017 * current monitoring channel.
2019 * @start_p2p_device: Start the given P2P device.
2020 * @stop_p2p_device: Stop the given P2P device.
2022 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2023 * Parameters include ACL policy, an array of MAC address of stations
2024 * and the number of MAC addresses. If there is already a list in driver
2025 * this new list replaces the existing one. Driver has to clear its ACL
2026 * when number of MAC addresses entries is passed as 0. Drivers which
2027 * advertise the support for MAC based ACL have to implement this callback.
2029 * @start_radar_detection: Start radar detection in the driver.
2031 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2032 * driver. If the SME is in the driver/firmware, this information can be
2033 * used in building Authentication and Reassociation Request frames.
2035 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2036 * for a given duration (milliseconds). The protocol is provided so the
2037 * driver can take the most appropriate actions.
2038 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2039 * reliability. This operation can not fail.
2041 struct cfg80211_ops
{
2042 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
2043 int (*resume
)(struct wiphy
*wiphy
);
2044 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
2046 struct wireless_dev
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
2048 enum nl80211_iftype type
,
2050 struct vif_params
*params
);
2051 int (*del_virtual_intf
)(struct wiphy
*wiphy
,
2052 struct wireless_dev
*wdev
);
2053 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
2054 struct net_device
*dev
,
2055 enum nl80211_iftype type
, u32
*flags
,
2056 struct vif_params
*params
);
2058 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2059 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2060 struct key_params
*params
);
2061 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2062 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2064 void (*callback
)(void *cookie
, struct key_params
*));
2065 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2066 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
2067 int (*set_default_key
)(struct wiphy
*wiphy
,
2068 struct net_device
*netdev
,
2069 u8 key_index
, bool unicast
, bool multicast
);
2070 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
2071 struct net_device
*netdev
,
2074 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2075 struct cfg80211_ap_settings
*settings
);
2076 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2077 struct cfg80211_beacon_data
*info
);
2078 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2081 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2082 u8
*mac
, struct station_parameters
*params
);
2083 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2085 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2086 u8
*mac
, struct station_parameters
*params
);
2087 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2088 u8
*mac
, struct station_info
*sinfo
);
2089 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2090 int idx
, u8
*mac
, struct station_info
*sinfo
);
2092 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2093 u8
*dst
, u8
*next_hop
);
2094 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2096 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2097 u8
*dst
, u8
*next_hop
);
2098 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2099 u8
*dst
, u8
*next_hop
,
2100 struct mpath_info
*pinfo
);
2101 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2102 int idx
, u8
*dst
, u8
*next_hop
,
2103 struct mpath_info
*pinfo
);
2104 int (*get_mesh_config
)(struct wiphy
*wiphy
,
2105 struct net_device
*dev
,
2106 struct mesh_config
*conf
);
2107 int (*update_mesh_config
)(struct wiphy
*wiphy
,
2108 struct net_device
*dev
, u32 mask
,
2109 const struct mesh_config
*nconf
);
2110 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2111 const struct mesh_config
*conf
,
2112 const struct mesh_setup
*setup
);
2113 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2115 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2116 struct bss_parameters
*params
);
2118 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2119 struct ieee80211_txq_params
*params
);
2121 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
2122 struct net_device
*dev
,
2123 struct ieee80211_channel
*chan
);
2125 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
2126 struct cfg80211_chan_def
*chandef
);
2128 int (*scan
)(struct wiphy
*wiphy
,
2129 struct cfg80211_scan_request
*request
);
2131 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2132 struct cfg80211_auth_request
*req
);
2133 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2134 struct cfg80211_assoc_request
*req
);
2135 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2136 struct cfg80211_deauth_request
*req
);
2137 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2138 struct cfg80211_disassoc_request
*req
);
2140 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2141 struct cfg80211_connect_params
*sme
);
2142 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2145 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2146 struct cfg80211_ibss_params
*params
);
2147 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2149 int (*set_mcast_rate
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2150 int rate
[IEEE80211_NUM_BANDS
]);
2152 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
2154 int (*set_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2155 enum nl80211_tx_power_setting type
, int mbm
);
2156 int (*get_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2159 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2162 void (*rfkill_poll
)(struct wiphy
*wiphy
);
2164 #ifdef CONFIG_NL80211_TESTMODE
2165 int (*testmode_cmd
)(struct wiphy
*wiphy
, void *data
, int len
);
2166 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
2167 struct netlink_callback
*cb
,
2168 void *data
, int len
);
2171 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
2172 struct net_device
*dev
,
2174 const struct cfg80211_bitrate_mask
*mask
);
2176 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2177 int idx
, struct survey_info
*info
);
2179 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2180 struct cfg80211_pmksa
*pmksa
);
2181 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2182 struct cfg80211_pmksa
*pmksa
);
2183 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
2185 int (*remain_on_channel
)(struct wiphy
*wiphy
,
2186 struct wireless_dev
*wdev
,
2187 struct ieee80211_channel
*chan
,
2188 unsigned int duration
,
2190 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
2191 struct wireless_dev
*wdev
,
2194 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2195 struct ieee80211_channel
*chan
, bool offchan
,
2196 unsigned int wait
, const u8
*buf
, size_t len
,
2197 bool no_cck
, bool dont_wait_for_ack
, u64
*cookie
);
2198 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
2199 struct wireless_dev
*wdev
,
2202 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2203 bool enabled
, int timeout
);
2205 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
2206 struct net_device
*dev
,
2207 s32 rssi_thold
, u32 rssi_hyst
);
2209 int (*set_cqm_txe_config
)(struct wiphy
*wiphy
,
2210 struct net_device
*dev
,
2211 u32 rate
, u32 pkts
, u32 intvl
);
2213 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
2214 struct wireless_dev
*wdev
,
2215 u16 frame_type
, bool reg
);
2217 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
2218 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
2220 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
2221 void (*get_ringparam
)(struct wiphy
*wiphy
,
2222 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
2224 int (*sched_scan_start
)(struct wiphy
*wiphy
,
2225 struct net_device
*dev
,
2226 struct cfg80211_sched_scan_request
*request
);
2227 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2229 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2230 struct cfg80211_gtk_rekey_data
*data
);
2232 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2233 u8
*peer
, u8 action_code
, u8 dialog_token
,
2234 u16 status_code
, const u8
*buf
, size_t len
);
2235 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2236 u8
*peer
, enum nl80211_tdls_operation oper
);
2238 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2239 const u8
*peer
, u64
*cookie
);
2241 int (*set_noack_map
)(struct wiphy
*wiphy
,
2242 struct net_device
*dev
,
2245 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
2246 struct net_device
*dev
, int sset
);
2247 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2248 struct ethtool_stats
*stats
, u64
*data
);
2249 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2250 u32 sset
, u8
*data
);
2252 int (*get_channel
)(struct wiphy
*wiphy
,
2253 struct wireless_dev
*wdev
,
2254 struct cfg80211_chan_def
*chandef
);
2256 int (*start_p2p_device
)(struct wiphy
*wiphy
,
2257 struct wireless_dev
*wdev
);
2258 void (*stop_p2p_device
)(struct wiphy
*wiphy
,
2259 struct wireless_dev
*wdev
);
2261 int (*set_mac_acl
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2262 const struct cfg80211_acl_data
*params
);
2264 int (*start_radar_detection
)(struct wiphy
*wiphy
,
2265 struct net_device
*dev
,
2266 struct cfg80211_chan_def
*chandef
);
2267 int (*update_ft_ies
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2268 struct cfg80211_update_ft_ies_params
*ftie
);
2269 int (*crit_proto_start
)(struct wiphy
*wiphy
,
2270 struct wireless_dev
*wdev
,
2271 enum nl80211_crit_proto_id protocol
,
2273 void (*crit_proto_stop
)(struct wiphy
*wiphy
,
2274 struct wireless_dev
*wdev
);
2278 * wireless hardware and networking interfaces structures
2279 * and registration/helper functions
2283 * enum wiphy_flags - wiphy capability flags
2285 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
2286 * has its own custom regulatory domain and cannot identify the
2287 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
2288 * we will disregard the first regulatory hint (when the
2289 * initiator is %REGDOM_SET_BY_CORE).
2290 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
2291 * ignore regulatory domain settings until it gets its own regulatory
2292 * domain via its regulatory_hint() unless the regulatory hint is
2293 * from a country IE. After its gets its own regulatory domain it will
2294 * only allow further regulatory domain settings to further enhance
2295 * compliance. For example if channel 13 and 14 are disabled by this
2296 * regulatory domain no user regulatory domain can enable these channels
2297 * at a later time. This can be used for devices which do not have
2298 * calibration information guaranteed for frequencies or settings
2299 * outside of its regulatory domain. If used in combination with
2300 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
2302 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
2303 * that passive scan flags and beaconing flags may not be lifted by
2304 * cfg80211 due to regulatory beacon hints. For more information on beacon
2305 * hints read the documenation for regulatory_hint_found_beacon()
2306 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2308 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2309 * by default -- this flag will be set depending on the kernel's default
2310 * on wiphy_new(), but can be changed by the driver if it has a good
2311 * reason to override the default
2312 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2313 * on a VLAN interface)
2314 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2315 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2316 * control port protocol ethertype. The device also honours the
2317 * control_port_no_encrypt flag.
2318 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2319 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2320 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2321 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2322 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2324 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2325 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2326 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2327 * link setup/discovery operations internally. Setup, discovery and
2328 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2329 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2330 * used for asking the driver/firmware to perform a TDLS operation.
2331 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2332 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2333 * when there are virtual interfaces in AP mode by calling
2334 * cfg80211_report_obss_beacon().
2335 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2336 * responds to probe-requests in hardware.
2337 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2338 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2341 WIPHY_FLAG_CUSTOM_REGULATORY
= BIT(0),
2342 WIPHY_FLAG_STRICT_REGULATORY
= BIT(1),
2343 WIPHY_FLAG_DISABLE_BEACON_HINTS
= BIT(2),
2344 WIPHY_FLAG_NETNS_OK
= BIT(3),
2345 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
2346 WIPHY_FLAG_4ADDR_AP
= BIT(5),
2347 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
2348 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
2349 WIPHY_FLAG_IBSS_RSN
= BIT(8),
2350 WIPHY_FLAG_MESH_AUTH
= BIT(10),
2351 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
2352 /* use hole at 12 */
2353 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
2354 WIPHY_FLAG_AP_UAPSD
= BIT(14),
2355 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
2356 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
2357 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
2358 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
2359 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
2360 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
2361 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
2365 * struct ieee80211_iface_limit - limit on certain interface types
2366 * @max: maximum number of interfaces of these types
2367 * @types: interface types (bits)
2369 struct ieee80211_iface_limit
{
2375 * struct ieee80211_iface_combination - possible interface combination
2376 * @limits: limits for the given interface types
2377 * @n_limits: number of limitations
2378 * @num_different_channels: can use up to this many different channels
2379 * @max_interfaces: maximum number of interfaces in total allowed in this
2381 * @beacon_int_infra_match: In this combination, the beacon intervals
2382 * between infrastructure and AP types must match. This is required
2383 * only in special cases.
2384 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2386 * These examples can be expressed as follows:
2388 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2390 * struct ieee80211_iface_limit limits1[] = {
2391 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2392 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2394 * struct ieee80211_iface_combination combination1 = {
2395 * .limits = limits1,
2396 * .n_limits = ARRAY_SIZE(limits1),
2397 * .max_interfaces = 2,
2398 * .beacon_int_infra_match = true,
2402 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2404 * struct ieee80211_iface_limit limits2[] = {
2405 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2406 * BIT(NL80211_IFTYPE_P2P_GO), },
2408 * struct ieee80211_iface_combination combination2 = {
2409 * .limits = limits2,
2410 * .n_limits = ARRAY_SIZE(limits2),
2411 * .max_interfaces = 8,
2412 * .num_different_channels = 1,
2416 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2417 * This allows for an infrastructure connection and three P2P connections.
2419 * struct ieee80211_iface_limit limits3[] = {
2420 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2421 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2422 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2424 * struct ieee80211_iface_combination combination3 = {
2425 * .limits = limits3,
2426 * .n_limits = ARRAY_SIZE(limits3),
2427 * .max_interfaces = 4,
2428 * .num_different_channels = 2,
2431 struct ieee80211_iface_combination
{
2432 const struct ieee80211_iface_limit
*limits
;
2433 u32 num_different_channels
;
2436 bool beacon_int_infra_match
;
2437 u8 radar_detect_widths
;
2440 struct ieee80211_txrx_stypes
{
2445 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2446 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2447 * trigger that keeps the device operating as-is and
2448 * wakes up the host on any activity, for example a
2449 * received packet that passed filtering; note that the
2450 * packet should be preserved in that case
2451 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2453 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2454 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2455 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2456 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2457 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2458 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2460 enum wiphy_wowlan_support_flags
{
2461 WIPHY_WOWLAN_ANY
= BIT(0),
2462 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
2463 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
2464 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
2465 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
2466 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
2467 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
2468 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2471 struct wiphy_wowlan_tcp_support
{
2472 const struct nl80211_wowlan_tcp_data_token_feature
*tok
;
2473 u32 data_payload_max
;
2474 u32 data_interval_max
;
2475 u32 wake_payload_max
;
2480 * struct wiphy_wowlan_support - WoWLAN support data
2481 * @flags: see &enum wiphy_wowlan_support_flags
2482 * @n_patterns: number of supported wakeup patterns
2483 * (see nl80211.h for the pattern definition)
2484 * @pattern_max_len: maximum length of each pattern
2485 * @pattern_min_len: minimum length of each pattern
2486 * @max_pkt_offset: maximum Rx packet offset
2487 * @tcp: TCP wakeup support information
2489 struct wiphy_wowlan_support
{
2492 int pattern_max_len
;
2493 int pattern_min_len
;
2495 const struct wiphy_wowlan_tcp_support
*tcp
;
2499 * struct wiphy - wireless hardware description
2500 * @reg_notifier: the driver's regulatory notification callback,
2501 * note that if your driver uses wiphy_apply_custom_regulatory()
2502 * the reg_notifier's request can be passed as NULL
2503 * @regd: the driver's regulatory domain, if one was requested via
2504 * the regulatory_hint() API. This can be used by the driver
2505 * on the reg_notifier() if it chooses to ignore future
2506 * regulatory domain changes caused by other drivers.
2507 * @signal_type: signal type reported in &struct cfg80211_bss.
2508 * @cipher_suites: supported cipher suites
2509 * @n_cipher_suites: number of supported cipher suites
2510 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2511 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2512 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2513 * -1 = fragmentation disabled, only odd values >= 256 used
2514 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2515 * @_net: the network namespace this wiphy currently lives in
2516 * @perm_addr: permanent MAC address of this device
2517 * @addr_mask: If the device supports multiple MAC addresses by masking,
2518 * set this to a mask with variable bits set to 1, e.g. if the last
2519 * four bits are variable then set it to 00:...:00:0f. The actual
2520 * variable bits shall be determined by the interfaces added, with
2521 * interfaces not matching the mask being rejected to be brought up.
2522 * @n_addresses: number of addresses in @addresses.
2523 * @addresses: If the device has more than one address, set this pointer
2524 * to a list of addresses (6 bytes each). The first one will be used
2525 * by default for perm_addr. In this case, the mask should be set to
2526 * all-zeroes. In this case it is assumed that the device can handle
2527 * the same number of arbitrary MAC addresses.
2528 * @registered: protects ->resume and ->suspend sysfs callbacks against
2529 * unregister hardware
2530 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2531 * automatically on wiphy renames
2532 * @dev: (virtual) struct device for this wiphy
2533 * @registered: helps synchronize suspend/resume with wiphy unregister
2534 * @wext: wireless extension handlers
2535 * @priv: driver private data (sized according to wiphy_new() parameter)
2536 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2537 * must be set by driver
2538 * @iface_combinations: Valid interface combinations array, should not
2539 * list single interface types.
2540 * @n_iface_combinations: number of entries in @iface_combinations array.
2541 * @software_iftypes: bitmask of software interface types, these are not
2542 * subject to any restrictions since they are purely managed in SW.
2543 * @flags: wiphy flags, see &enum wiphy_flags
2544 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2545 * @bss_priv_size: each BSS struct has private data allocated with it,
2546 * this variable determines its size
2547 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2549 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2550 * for in any given scheduled scan
2551 * @max_match_sets: maximum number of match sets the device can handle
2552 * when performing a scheduled scan, 0 if filtering is not
2554 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2555 * add to probe request frames transmitted during a scan, must not
2556 * include fixed IEs like supported rates
2557 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2559 * @coverage_class: current coverage class
2560 * @fw_version: firmware version for ethtool reporting
2561 * @hw_version: hardware version for ethtool reporting
2562 * @max_num_pmkids: maximum number of PMKIDs supported by device
2563 * @privid: a pointer that drivers can use to identify if an arbitrary
2564 * wiphy is theirs, e.g. in global notifiers
2565 * @bands: information about bands/channels supported by this device
2567 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2568 * transmitted through nl80211, points to an array indexed by interface
2571 * @available_antennas_tx: bitmap of antennas which are available to be
2572 * configured as TX antennas. Antenna configuration commands will be
2573 * rejected unless this or @available_antennas_rx is set.
2575 * @available_antennas_rx: bitmap of antennas which are available to be
2576 * configured as RX antennas. Antenna configuration commands will be
2577 * rejected unless this or @available_antennas_tx is set.
2579 * @probe_resp_offload:
2580 * Bitmap of supported protocols for probe response offloading.
2581 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2582 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2584 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2585 * may request, if implemented.
2587 * @wowlan: WoWLAN support information
2588 * @wowlan_config: current WoWLAN configuration; this should usually not be
2589 * used since access to it is necessarily racy, use the parameter passed
2590 * to the suspend() operation instead.
2592 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2593 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2594 * If null, then none can be over-ridden.
2595 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
2596 * If null, then none can be over-ridden.
2598 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
2601 * @extended_capabilities: extended capabilities supported by the driver,
2602 * additional capabilities might be supported by userspace; these are
2603 * the 802.11 extended capabilities ("Extended Capabilities element")
2604 * and are in the same format as in the information element. See
2605 * 802.11-2012 8.4.2.29 for the defined fields.
2606 * @extended_capabilities_mask: mask of the valid values
2607 * @extended_capabilities_len: length of the extended capabilities
2610 /* assign these fields before you register the wiphy */
2612 /* permanent MAC address(es) */
2613 u8 perm_addr
[ETH_ALEN
];
2614 u8 addr_mask
[ETH_ALEN
];
2616 struct mac_address
*addresses
;
2618 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2620 const struct ieee80211_iface_combination
*iface_combinations
;
2621 int n_iface_combinations
;
2622 u16 software_iftypes
;
2626 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2627 u16 interface_modes
;
2629 u16 max_acl_mac_addrs
;
2631 u32 flags
, features
;
2635 enum cfg80211_signal_type signal_type
;
2639 u8 max_sched_scan_ssids
;
2641 u16 max_scan_ie_len
;
2642 u16 max_sched_scan_ie_len
;
2644 int n_cipher_suites
;
2645 const u32
*cipher_suites
;
2653 char fw_version
[ETHTOOL_FWVERS_LEN
];
2657 const struct wiphy_wowlan_support
*wowlan
;
2658 struct cfg80211_wowlan
*wowlan_config
;
2661 u16 max_remain_on_channel_duration
;
2665 u32 available_antennas_tx
;
2666 u32 available_antennas_rx
;
2669 * Bitmap of supported protocols for probe response offloading
2670 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2671 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2673 u32 probe_resp_offload
;
2675 const u8
*extended_capabilities
, *extended_capabilities_mask
;
2676 u8 extended_capabilities_len
;
2678 /* If multiple wiphys are registered and you're handed e.g.
2679 * a regular netdev with assigned ieee80211_ptr, you won't
2680 * know whether it points to a wiphy your driver has registered
2681 * or not. Assign this to something global to your driver to
2682 * help determine whether you own this wiphy or not. */
2685 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
2687 /* Lets us get back the wiphy on the callback */
2688 void (*reg_notifier
)(struct wiphy
*wiphy
,
2689 struct regulatory_request
*request
);
2691 /* fields below are read-only, assigned by cfg80211 */
2693 const struct ieee80211_regdomain __rcu
*regd
;
2695 /* the item in /sys/class/ieee80211/ points to this,
2696 * you need use set_wiphy_dev() (see below) */
2699 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2702 /* dir in debugfs: ieee80211/<wiphyname> */
2703 struct dentry
*debugfsdir
;
2705 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
2706 const struct ieee80211_vht_cap
*vht_capa_mod_mask
;
2708 #ifdef CONFIG_NET_NS
2709 /* the network namespace this phy lives in currently */
2713 #ifdef CONFIG_CFG80211_WEXT
2714 const struct iw_handler_def
*wext
;
2717 char priv
[0] __aligned(NETDEV_ALIGN
);
2720 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
2722 return read_pnet(&wiphy
->_net
);
2725 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
2727 write_pnet(&wiphy
->_net
, net
);
2731 * wiphy_priv - return priv from wiphy
2733 * @wiphy: the wiphy whose priv pointer to return
2734 * Return: The priv of @wiphy.
2736 static inline void *wiphy_priv(struct wiphy
*wiphy
)
2739 return &wiphy
->priv
;
2743 * priv_to_wiphy - return the wiphy containing the priv
2745 * @priv: a pointer previously returned by wiphy_priv
2746 * Return: The wiphy of @priv.
2748 static inline struct wiphy
*priv_to_wiphy(void *priv
)
2751 return container_of(priv
, struct wiphy
, priv
);
2755 * set_wiphy_dev - set device pointer for wiphy
2757 * @wiphy: The wiphy whose device to bind
2758 * @dev: The device to parent it to
2760 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
2762 wiphy
->dev
.parent
= dev
;
2766 * wiphy_dev - get wiphy dev pointer
2768 * @wiphy: The wiphy whose device struct to look up
2769 * Return: The dev of @wiphy.
2771 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
2773 return wiphy
->dev
.parent
;
2777 * wiphy_name - get wiphy name
2779 * @wiphy: The wiphy whose name to return
2780 * Return: The name of @wiphy.
2782 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
2784 return dev_name(&wiphy
->dev
);
2788 * wiphy_new - create a new wiphy for use with cfg80211
2790 * @ops: The configuration operations for this device
2791 * @sizeof_priv: The size of the private area to allocate
2793 * Create a new wiphy and associate the given operations with it.
2794 * @sizeof_priv bytes are allocated for private use.
2796 * Return: A pointer to the new wiphy. This pointer must be
2797 * assigned to each netdev's ieee80211_ptr for proper operation.
2799 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
2802 * wiphy_register - register a wiphy with cfg80211
2804 * @wiphy: The wiphy to register.
2806 * Return: A non-negative wiphy index or a negative error code.
2808 extern int wiphy_register(struct wiphy
*wiphy
);
2811 * wiphy_unregister - deregister a wiphy from cfg80211
2813 * @wiphy: The wiphy to unregister.
2815 * After this call, no more requests can be made with this priv
2816 * pointer, but the call may sleep to wait for an outstanding
2817 * request that is being handled.
2819 extern void wiphy_unregister(struct wiphy
*wiphy
);
2822 * wiphy_free - free wiphy
2824 * @wiphy: The wiphy to free
2826 extern void wiphy_free(struct wiphy
*wiphy
);
2828 /* internal structs */
2829 struct cfg80211_conn
;
2830 struct cfg80211_internal_bss
;
2831 struct cfg80211_cached_keys
;
2834 * struct wireless_dev - wireless device state
2836 * For netdevs, this structure must be allocated by the driver
2837 * that uses the ieee80211_ptr field in struct net_device (this
2838 * is intentional so it can be allocated along with the netdev.)
2839 * It need not be registered then as netdev registration will
2840 * be intercepted by cfg80211 to see the new wireless device.
2842 * For non-netdev uses, it must also be allocated by the driver
2843 * in response to the cfg80211 callbacks that require it, as
2844 * there's no netdev registration in that case it may not be
2845 * allocated outside of callback operations that return it.
2847 * @wiphy: pointer to hardware description
2848 * @iftype: interface type
2849 * @list: (private) Used to collect the interfaces
2850 * @netdev: (private) Used to reference back to the netdev, may be %NULL
2851 * @identifier: (private) Identifier used in nl80211 to identify this
2852 * wireless device if it has no netdev
2853 * @current_bss: (private) Used by the internal configuration code
2854 * @channel: (private) Used by the internal configuration code to track
2855 * the user-set AP, monitor and WDS channel
2856 * @preset_chan: (private) Used by the internal configuration code to
2857 * track the channel to be used for AP later
2858 * @bssid: (private) Used by the internal configuration code
2859 * @ssid: (private) Used by the internal configuration code
2860 * @ssid_len: (private) Used by the internal configuration code
2861 * @mesh_id_len: (private) Used by the internal configuration code
2862 * @mesh_id_up_len: (private) Used by the internal configuration code
2863 * @wext: (private) Used by the internal wireless extensions compat code
2864 * @use_4addr: indicates 4addr mode is used on this interface, must be
2865 * set by driver (if supported) on add_interface BEFORE registering the
2866 * netdev and may otherwise be used by driver read-only, will be update
2867 * by cfg80211 on change_interface
2868 * @mgmt_registrations: list of registrations for management frames
2869 * @mgmt_registrations_lock: lock for the list
2870 * @mtx: mutex used to lock data in this struct, may be used by drivers
2871 * and some API functions require it held
2872 * @beacon_interval: beacon interval used on this device for transmitting
2873 * beacons, 0 when not valid
2874 * @address: The address for this device, valid only if @netdev is %NULL
2875 * @p2p_started: true if this is a P2P Device that has been started
2876 * @cac_started: true if DFS channel availability check has been started
2877 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
2879 struct wireless_dev
{
2880 struct wiphy
*wiphy
;
2881 enum nl80211_iftype iftype
;
2883 /* the remainder of this struct should be private to cfg80211 */
2884 struct list_head list
;
2885 struct net_device
*netdev
;
2889 struct list_head mgmt_registrations
;
2890 spinlock_t mgmt_registrations_lock
;
2894 bool use_4addr
, p2p_started
;
2896 u8 address
[ETH_ALEN
] __aligned(sizeof(u16
));
2898 /* currently used for IBSS and SME - might be rearranged later */
2899 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2900 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
2903 CFG80211_SME_CONNECTING
,
2904 CFG80211_SME_CONNECTED
,
2906 struct cfg80211_conn
*conn
;
2907 struct cfg80211_cached_keys
*connect_keys
;
2909 struct list_head event_list
;
2910 spinlock_t event_lock
;
2912 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
2913 struct cfg80211_chan_def preset_chandef
;
2915 /* for AP and mesh channel tracking */
2916 struct ieee80211_channel
*channel
;
2923 int beacon_interval
;
2925 u32 ap_unexpected_nlportid
;
2928 unsigned long cac_start_time
;
2930 #ifdef CONFIG_CFG80211_WEXT
2933 struct cfg80211_ibss_params ibss
;
2934 struct cfg80211_connect_params connect
;
2935 struct cfg80211_cached_keys
*keys
;
2938 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
2939 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2940 s8 default_key
, default_mgmt_key
;
2941 bool prev_bssid_valid
;
2946 static inline u8
*wdev_address(struct wireless_dev
*wdev
)
2949 return wdev
->netdev
->dev_addr
;
2950 return wdev
->address
;
2954 * wdev_priv - return wiphy priv from wireless_dev
2956 * @wdev: The wireless device whose wiphy's priv pointer to return
2957 * Return: The wiphy priv of @wdev.
2959 static inline void *wdev_priv(struct wireless_dev
*wdev
)
2962 return wiphy_priv(wdev
->wiphy
);
2966 * DOC: Utility functions
2968 * cfg80211 offers a number of utility functions that can be useful.
2972 * ieee80211_channel_to_frequency - convert channel number to frequency
2973 * @chan: channel number
2974 * @band: band, necessary due to channel number overlap
2975 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
2977 extern int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
2980 * ieee80211_frequency_to_channel - convert frequency to channel number
2981 * @freq: center frequency
2982 * Return: The corresponding channel, or 0 if the conversion failed.
2984 extern int ieee80211_frequency_to_channel(int freq
);
2987 * Name indirection necessary because the ieee80211 code also has
2988 * a function named "ieee80211_get_channel", so if you include
2989 * cfg80211's header file you get cfg80211's version, if you try
2990 * to include both header files you'll (rightfully!) get a symbol
2993 extern struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
2996 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2997 * @wiphy: the struct wiphy to get the channel for
2998 * @freq: the center frequency of the channel
2999 * Return: The channel struct from @wiphy at @freq.
3001 static inline struct ieee80211_channel
*
3002 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
3004 return __ieee80211_get_channel(wiphy
, freq
);
3008 * ieee80211_get_response_rate - get basic rate for a given rate
3010 * @sband: the band to look for rates in
3011 * @basic_rates: bitmap of basic rates
3012 * @bitrate: the bitrate for which to find the basic rate
3014 * Return: The basic rate corresponding to a given bitrate, that
3015 * is the next lower bitrate contained in the basic rate map,
3016 * which is, for this function, given as a bitmap of indices of
3017 * rates in the band's bitrate table.
3019 struct ieee80211_rate
*
3020 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
3021 u32 basic_rates
, int bitrate
);
3024 * ieee80211_mandatory_rates - get mandatory rates for a given band
3025 * @sband: the band to look for rates in
3027 * This function returns a bitmap of the mandatory rates for the given
3028 * band, bits are set according to the rate position in the bitrates array.
3030 u32
ieee80211_mandatory_rates(struct ieee80211_supported_band
*sband
);
3033 * Radiotap parsing functions -- for controlled injection support
3035 * Implemented in net/wireless/radiotap.c
3036 * Documentation in Documentation/networking/radiotap-headers.txt
3039 struct radiotap_align_size
{
3040 uint8_t align
:4, size
:4;
3043 struct ieee80211_radiotap_namespace
{
3044 const struct radiotap_align_size
*align_size
;
3050 struct ieee80211_radiotap_vendor_namespaces
{
3051 const struct ieee80211_radiotap_namespace
*ns
;
3056 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3057 * @this_arg_index: index of current arg, valid after each successful call
3058 * to ieee80211_radiotap_iterator_next()
3059 * @this_arg: pointer to current radiotap arg; it is valid after each
3060 * call to ieee80211_radiotap_iterator_next() but also after
3061 * ieee80211_radiotap_iterator_init() where it will point to
3062 * the beginning of the actual data portion
3063 * @this_arg_size: length of the current arg, for convenience
3064 * @current_namespace: pointer to the current namespace definition
3065 * (or internally %NULL if the current namespace is unknown)
3066 * @is_radiotap_ns: indicates whether the current namespace is the default
3067 * radiotap namespace or not
3069 * @_rtheader: pointer to the radiotap header we are walking through
3070 * @_max_length: length of radiotap header in cpu byte ordering
3071 * @_arg_index: next argument index
3072 * @_arg: next argument pointer
3073 * @_next_bitmap: internal pointer to next present u32
3074 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3075 * @_vns: vendor namespace definitions
3076 * @_next_ns_data: beginning of the next namespace's data
3077 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
3080 * Describes the radiotap parser state. Fields prefixed with an underscore
3081 * must not be used by users of the parser, only by the parser internally.
3084 struct ieee80211_radiotap_iterator
{
3085 struct ieee80211_radiotap_header
*_rtheader
;
3086 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
3087 const struct ieee80211_radiotap_namespace
*current_namespace
;
3089 unsigned char *_arg
, *_next_ns_data
;
3090 __le32
*_next_bitmap
;
3092 unsigned char *this_arg
;
3100 uint32_t _bitmap_shifter
;
3104 extern int ieee80211_radiotap_iterator_init(
3105 struct ieee80211_radiotap_iterator
*iterator
,
3106 struct ieee80211_radiotap_header
*radiotap_header
,
3107 int max_length
, const struct ieee80211_radiotap_vendor_namespaces
*vns
);
3109 extern int ieee80211_radiotap_iterator_next(
3110 struct ieee80211_radiotap_iterator
*iterator
);
3113 extern const unsigned char rfc1042_header
[6];
3114 extern const unsigned char bridge_tunnel_header
[6];
3117 * ieee80211_get_hdrlen_from_skb - get header length from data
3121 * Given an skb with a raw 802.11 header at the data pointer this function
3122 * returns the 802.11 header length.
3124 * Return: The 802.11 header length in bytes (not including encryption
3125 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
3128 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
3131 * ieee80211_hdrlen - get header length in bytes from frame control
3132 * @fc: frame control field in little-endian format
3133 * Return: The header length in bytes.
3135 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
3138 * ieee80211_get_mesh_hdrlen - get mesh extension header length
3139 * @meshhdr: the mesh extension header, only the flags field
3140 * (first byte) will be accessed
3141 * Return: The length of the extension header, which is always at
3142 * least 6 bytes and at most 18 if address 5 and 6 are present.
3144 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr
*meshhdr
);
3147 * DOC: Data path helpers
3149 * In addition to generic utilities, cfg80211 also offers
3150 * functions that help implement the data path for devices
3151 * that do not do the 802.11/802.3 conversion on the device.
3155 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
3156 * @skb: the 802.11 data frame
3157 * @addr: the device MAC address
3158 * @iftype: the virtual interface type
3159 * Return: 0 on success. Non-zero on error.
3161 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
3162 enum nl80211_iftype iftype
);
3165 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
3166 * @skb: the 802.3 frame
3167 * @addr: the device MAC address
3168 * @iftype: the virtual interface type
3169 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
3170 * @qos: build 802.11 QoS data frame
3171 * Return: 0 on success, or a negative error code.
3173 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
3174 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
3177 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
3179 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
3180 * 802.3 frames. The @list will be empty if the decode fails. The
3181 * @skb is consumed after the function returns.
3183 * @skb: The input IEEE 802.11n A-MSDU frame.
3184 * @list: The output list of 802.3 frames. It must be allocated and
3185 * initialized by by the caller.
3186 * @addr: The device MAC address.
3187 * @iftype: The device interface type.
3188 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
3189 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
3191 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
3192 const u8
*addr
, enum nl80211_iftype iftype
,
3193 const unsigned int extra_headroom
,
3194 bool has_80211_header
);
3197 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
3198 * @skb: the data frame
3199 * Return: The 802.1p/1d tag.
3201 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
);
3204 * cfg80211_find_ie - find information element in data
3207 * @ies: data consisting of IEs
3208 * @len: length of data
3210 * Return: %NULL if the element ID could not be found or if
3211 * the element is invalid (claims to be longer than the given
3212 * data), or a pointer to the first byte of the requested
3213 * element, that is the byte containing the element ID.
3215 * Note: There are no checks on the element length other than
3216 * having to fit into the given data.
3218 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
3221 * cfg80211_find_vendor_ie - find vendor specific information element in data
3224 * @oui_type: vendor-specific OUI type
3225 * @ies: data consisting of IEs
3226 * @len: length of data
3228 * Return: %NULL if the vendor specific element ID could not be found or if the
3229 * element is invalid (claims to be longer than the given data), or a pointer to
3230 * the first byte of the requested element, that is the byte containing the
3233 * Note: There are no checks on the element length other than having to fit into
3236 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
3237 const u8
*ies
, int len
);
3240 * DOC: Regulatory enforcement infrastructure
3246 * regulatory_hint - driver hint to the wireless core a regulatory domain
3247 * @wiphy: the wireless device giving the hint (used only for reporting
3249 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3250 * should be in. If @rd is set this should be NULL. Note that if you
3251 * set this to NULL you should still set rd->alpha2 to some accepted
3254 * Wireless drivers can use this function to hint to the wireless core
3255 * what it believes should be the current regulatory domain by
3256 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3257 * domain should be in or by providing a completely build regulatory domain.
3258 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3259 * for a regulatory domain structure for the respective country.
3261 * The wiphy must have been registered to cfg80211 prior to this call.
3262 * For cfg80211 drivers this means you must first use wiphy_register(),
3263 * for mac80211 drivers you must first use ieee80211_register_hw().
3265 * Drivers should check the return value, its possible you can get
3268 * Return: 0 on success. -ENOMEM.
3270 extern int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
3273 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3274 * @wiphy: the wireless device we want to process the regulatory domain on
3275 * @regd: the custom regulatory domain to use for this wiphy
3277 * Drivers can sometimes have custom regulatory domains which do not apply
3278 * to a specific country. Drivers can use this to apply such custom regulatory
3279 * domains. This routine must be called prior to wiphy registration. The
3280 * custom regulatory domain will be trusted completely and as such previous
3281 * default channel settings will be disregarded. If no rule is found for a
3282 * channel on the regulatory domain the channel will be disabled.
3284 extern void wiphy_apply_custom_regulatory(
3285 struct wiphy
*wiphy
,
3286 const struct ieee80211_regdomain
*regd
);
3289 * freq_reg_info - get regulatory information for the given frequency
3290 * @wiphy: the wiphy for which we want to process this rule for
3291 * @center_freq: Frequency in KHz for which we want regulatory information for
3293 * Use this function to get the regulatory rule for a specific frequency on
3294 * a given wireless device. If the device has a specific regulatory domain
3295 * it wants to follow we respect that unless a country IE has been received
3296 * and processed already.
3298 * Return: A valid pointer, or, when an error occurs, for example if no rule
3299 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3300 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3301 * value will be -ERANGE if we determine the given center_freq does not even
3302 * have a regulatory rule for a frequency range in the center_freq's band.
3303 * See freq_in_rule_band() for our current definition of a band -- this is
3304 * purely subjective and right now it's 802.11 specific.
3306 const struct ieee80211_reg_rule
*freq_reg_info(struct wiphy
*wiphy
,
3310 * callbacks for asynchronous cfg80211 methods, notification
3311 * functions and BSS handling helpers
3315 * cfg80211_scan_done - notify that scan finished
3317 * @request: the corresponding scan request
3318 * @aborted: set to true if the scan was aborted for any reason,
3319 * userspace will be notified of that
3321 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
3324 * cfg80211_sched_scan_results - notify that new scan results are available
3326 * @wiphy: the wiphy which got scheduled scan results
3328 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
3331 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3333 * @wiphy: the wiphy on which the scheduled scan stopped
3335 * The driver can call this function to inform cfg80211 that the
3336 * scheduled scan had to be stopped, for whatever reason. The driver
3337 * is then called back via the sched_scan_stop operation when done.
3339 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
3342 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
3344 * @wiphy: the wiphy reporting the BSS
3345 * @channel: The channel the frame was received on
3346 * @mgmt: the management frame (probe response or beacon)
3347 * @len: length of the management frame
3348 * @signal: the signal strength, type depends on the wiphy's signal_type
3349 * @gfp: context flags
3351 * This informs cfg80211 that BSS information was found and
3352 * the BSS should be updated/added.
3354 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3355 * Or %NULL on error.
3357 struct cfg80211_bss
* __must_check
3358 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
3359 struct ieee80211_channel
*channel
,
3360 struct ieee80211_mgmt
*mgmt
, size_t len
,
3361 s32 signal
, gfp_t gfp
);
3364 * cfg80211_inform_bss - inform cfg80211 of a new BSS
3366 * @wiphy: the wiphy reporting the BSS
3367 * @channel: The channel the frame was received on
3368 * @bssid: the BSSID of the BSS
3369 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
3370 * @capability: the capability field sent by the peer
3371 * @beacon_interval: the beacon interval announced by the peer
3372 * @ie: additional IEs sent by the peer
3373 * @ielen: length of the additional IEs
3374 * @signal: the signal strength, type depends on the wiphy's signal_type
3375 * @gfp: context flags
3377 * This informs cfg80211 that BSS information was found and
3378 * the BSS should be updated/added.
3380 * Return: A referenced struct, must be released with cfg80211_put_bss()!
3381 * Or %NULL on error.
3383 struct cfg80211_bss
* __must_check
3384 cfg80211_inform_bss(struct wiphy
*wiphy
,
3385 struct ieee80211_channel
*channel
,
3386 const u8
*bssid
, u64 tsf
, u16 capability
,
3387 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
3388 s32 signal
, gfp_t gfp
);
3390 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
3391 struct ieee80211_channel
*channel
,
3393 const u8
*ssid
, size_t ssid_len
,
3394 u16 capa_mask
, u16 capa_val
);
3395 static inline struct cfg80211_bss
*
3396 cfg80211_get_ibss(struct wiphy
*wiphy
,
3397 struct ieee80211_channel
*channel
,
3398 const u8
*ssid
, size_t ssid_len
)
3400 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
3401 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
3405 * cfg80211_ref_bss - reference BSS struct
3406 * @wiphy: the wiphy this BSS struct belongs to
3407 * @bss: the BSS struct to reference
3409 * Increments the refcount of the given BSS struct.
3411 void cfg80211_ref_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3414 * cfg80211_put_bss - unref BSS struct
3415 * @wiphy: the wiphy this BSS struct belongs to
3416 * @bss: the BSS struct
3418 * Decrements the refcount of the given BSS struct.
3420 void cfg80211_put_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3423 * cfg80211_unlink_bss - unlink BSS from internal data structures
3425 * @bss: the bss to remove
3427 * This function removes the given BSS from the internal data structures
3428 * thereby making it no longer show up in scan results etc. Use this
3429 * function when you detect a BSS is gone. Normally BSSes will also time
3430 * out, so it is not necessary to use this function at all.
3432 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
3435 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
3436 * @dev: network device
3437 * @buf: authentication frame (header + body)
3438 * @len: length of the frame data
3440 * This function is called whenever an authentication, disassociation or
3441 * deauthentication frame has been received and processed in station mode.
3442 * After being asked to authenticate via cfg80211_ops::auth() the driver must
3443 * call either this function or cfg80211_auth_timeout().
3444 * After being asked to associate via cfg80211_ops::assoc() the driver must
3445 * call either this function or cfg80211_auth_timeout().
3446 * While connected, the driver must calls this for received and processed
3447 * disassociation and deauthentication frames. If the frame couldn't be used
3448 * because it was unprotected, the driver must call the function
3449 * cfg80211_rx_unprot_mlme_mgmt() instead.
3451 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3453 void cfg80211_rx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3456 * cfg80211_auth_timeout - notification of timed out authentication
3457 * @dev: network device
3458 * @addr: The MAC address of the device with which the authentication timed out
3460 * This function may sleep. The caller must hold the corresponding wdev's
3463 void cfg80211_auth_timeout(struct net_device
*dev
, const u8
*addr
);
3466 * cfg80211_rx_assoc_resp - notification of processed association response
3467 * @dev: network device
3468 * @bss: the BSS that association was requested with, ownership of the pointer
3469 * moves to cfg80211 in this call
3470 * @buf: authentication frame (header + body)
3471 * @len: length of the frame data
3473 * After being asked to associate via cfg80211_ops::assoc() the driver must
3474 * call either this function or cfg80211_auth_timeout().
3476 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3478 void cfg80211_rx_assoc_resp(struct net_device
*dev
,
3479 struct cfg80211_bss
*bss
,
3480 const u8
*buf
, size_t len
);
3483 * cfg80211_assoc_timeout - notification of timed out association
3484 * @dev: network device
3485 * @addr: The MAC address of the device with which the association timed out
3487 * This function may sleep. The caller must hold the corresponding wdev's mutex.
3489 void cfg80211_assoc_timeout(struct net_device
*dev
, const u8
*addr
);
3492 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
3493 * @dev: network device
3494 * @buf: 802.11 frame (header + body)
3495 * @len: length of the frame data
3497 * This function is called whenever deauthentication has been processed in
3498 * station mode. This includes both received deauthentication frames and
3499 * locally generated ones. This function may sleep. The caller must hold the
3500 * corresponding wdev's mutex.
3502 void cfg80211_tx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
3505 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
3506 * @dev: network device
3507 * @buf: deauthentication frame (header + body)
3508 * @len: length of the frame data
3510 * This function is called whenever a received deauthentication or dissassoc
3511 * frame has been dropped in station mode because of MFP being used but the
3512 * frame was not protected. This function may sleep.
3514 void cfg80211_rx_unprot_mlme_mgmt(struct net_device
*dev
,
3515 const u8
*buf
, size_t len
);
3518 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3519 * @dev: network device
3520 * @addr: The source MAC address of the frame
3521 * @key_type: The key type that the received frame used
3522 * @key_id: Key identifier (0..3). Can be -1 if missing.
3523 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3524 * @gfp: allocation flags
3526 * This function is called whenever the local MAC detects a MIC failure in a
3527 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3530 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
3531 enum nl80211_key_type key_type
, int key_id
,
3532 const u8
*tsc
, gfp_t gfp
);
3535 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3537 * @dev: network device
3538 * @bssid: the BSSID of the IBSS joined
3539 * @gfp: allocation flags
3541 * This function notifies cfg80211 that the device joined an IBSS or
3542 * switched to a different BSSID. Before this function can be called,
3543 * either a beacon has to have been received from the IBSS, or one of
3544 * the cfg80211_inform_bss{,_frame} functions must have been called
3545 * with the locally generated beacon -- this guarantees that there is
3546 * always a scan result for this IBSS. cfg80211 will handle the rest.
3548 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
, gfp_t gfp
);
3551 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3553 * @dev: network device
3554 * @macaddr: the MAC address of the new candidate
3555 * @ie: information elements advertised by the peer candidate
3556 * @ie_len: lenght of the information elements buffer
3557 * @gfp: allocation flags
3559 * This function notifies cfg80211 that the mesh peer candidate has been
3560 * detected, most likely via a beacon or, less likely, via a probe response.
3561 * cfg80211 then sends a notification to userspace.
3563 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3564 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3567 * DOC: RFkill integration
3569 * RFkill integration in cfg80211 is almost invisible to drivers,
3570 * as cfg80211 automatically registers an rfkill instance for each
3571 * wireless device it knows about. Soft kill is also translated
3572 * into disconnecting and turning all interfaces off, drivers are
3573 * expected to turn off the device when all interfaces are down.
3575 * However, devices may have a hard RFkill line, in which case they
3576 * also need to interact with the rfkill subsystem, via cfg80211.
3577 * They can do this with a few helper functions documented here.
3581 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3583 * @blocked: block status
3585 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
3588 * wiphy_rfkill_start_polling - start polling rfkill
3591 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
3594 * wiphy_rfkill_stop_polling - stop polling rfkill
3597 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
3599 #ifdef CONFIG_NL80211_TESTMODE
3603 * Test mode is a set of utility functions to allow drivers to
3604 * interact with driver-specific tools to aid, for instance,
3605 * factory programming.
3607 * This chapter describes how drivers interact with it, for more
3608 * information see the nl80211 book's chapter on it.
3612 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3614 * @approxlen: an upper bound of the length of the data that will
3615 * be put into the skb
3617 * This function allocates and pre-fills an skb for a reply to
3618 * the testmode command. Since it is intended for a reply, calling
3619 * it outside of the @testmode_cmd operation is invalid.
3621 * The returned skb is pre-filled with the wiphy index and set up in
3622 * a way that any data that is put into the skb (with skb_put(),
3623 * nla_put() or similar) will end up being within the
3624 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
3625 * with the skb is adding data for the corresponding userspace tool
3626 * which can then read that data out of the testdata attribute. You
3627 * must not modify the skb in any other way.
3629 * When done, call cfg80211_testmode_reply() with the skb and return
3630 * its error code as the result of the @testmode_cmd operation.
3632 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3634 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
3638 * cfg80211_testmode_reply - send the reply skb
3639 * @skb: The skb, must have been allocated with
3640 * cfg80211_testmode_alloc_reply_skb()
3642 * Since calling this function will usually be the last thing
3643 * before returning from the @testmode_cmd you should return
3644 * the error code. Note that this function consumes the skb
3645 * regardless of the return value.
3647 * Return: An error code or 0 on success.
3649 int cfg80211_testmode_reply(struct sk_buff
*skb
);
3652 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3654 * @approxlen: an upper bound of the length of the data that will
3655 * be put into the skb
3656 * @gfp: allocation flags
3658 * This function allocates and pre-fills an skb for an event on the
3659 * testmode multicast group.
3661 * The returned skb is set up in the same way as with
3662 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
3663 * there, you should simply add data to it that will then end up in the
3664 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
3667 * When done filling the skb, call cfg80211_testmode_event() with the
3668 * skb to send the event.
3670 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
3672 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
3673 int approxlen
, gfp_t gfp
);
3676 * cfg80211_testmode_event - send the event
3677 * @skb: The skb, must have been allocated with
3678 * cfg80211_testmode_alloc_event_skb()
3679 * @gfp: allocation flags
3681 * This function sends the given @skb, which must have been allocated
3682 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3685 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
);
3687 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3688 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3690 #define CFG80211_TESTMODE_CMD(cmd)
3691 #define CFG80211_TESTMODE_DUMP(cmd)
3695 * cfg80211_connect_result - notify cfg80211 of connection result
3697 * @dev: network device
3698 * @bssid: the BSSID of the AP
3699 * @req_ie: association request IEs (maybe be %NULL)
3700 * @req_ie_len: association request IEs length
3701 * @resp_ie: association response IEs (may be %NULL)
3702 * @resp_ie_len: assoc response IEs length
3703 * @status: status code, 0 for successful connection, use
3704 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3705 * the real status code for failures.
3706 * @gfp: allocation flags
3708 * It should be called by the underlying driver whenever connect() has
3711 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
3712 const u8
*req_ie
, size_t req_ie_len
,
3713 const u8
*resp_ie
, size_t resp_ie_len
,
3714 u16 status
, gfp_t gfp
);
3717 * cfg80211_roamed - notify cfg80211 of roaming
3719 * @dev: network device
3720 * @channel: the channel of the new AP
3721 * @bssid: the BSSID of the new AP
3722 * @req_ie: association request IEs (maybe be %NULL)
3723 * @req_ie_len: association request IEs length
3724 * @resp_ie: association response IEs (may be %NULL)
3725 * @resp_ie_len: assoc response IEs length
3726 * @gfp: allocation flags
3728 * It should be called by the underlying driver whenever it roamed
3729 * from one AP to another while connected.
3731 void cfg80211_roamed(struct net_device
*dev
,
3732 struct ieee80211_channel
*channel
,
3734 const u8
*req_ie
, size_t req_ie_len
,
3735 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3738 * cfg80211_roamed_bss - notify cfg80211 of roaming
3740 * @dev: network device
3741 * @bss: entry of bss to which STA got roamed
3742 * @req_ie: association request IEs (maybe be %NULL)
3743 * @req_ie_len: association request IEs length
3744 * @resp_ie: association response IEs (may be %NULL)
3745 * @resp_ie_len: assoc response IEs length
3746 * @gfp: allocation flags
3748 * This is just a wrapper to notify cfg80211 of roaming event with driver
3749 * passing bss to avoid a race in timeout of the bss entry. It should be
3750 * called by the underlying driver whenever it roamed from one AP to another
3751 * while connected. Drivers which have roaming implemented in firmware
3752 * may use this function to avoid a race in bss entry timeout where the bss
3753 * entry of the new AP is seen in the driver, but gets timed out by the time
3754 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3755 * rdev->event_work. In case of any failures, the reference is released
3756 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3757 * it will be released while diconneting from the current bss.
3759 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
3760 const u8
*req_ie
, size_t req_ie_len
,
3761 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3764 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3766 * @dev: network device
3767 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3768 * @ie_len: length of IEs
3769 * @reason: reason code for the disconnection, set it to 0 if unknown
3770 * @gfp: allocation flags
3772 * After it calls this function, the driver should enter an idle state
3773 * and not try to connect to any AP any more.
3775 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
3776 u8
*ie
, size_t ie_len
, gfp_t gfp
);
3779 * cfg80211_ready_on_channel - notification of remain_on_channel start
3780 * @wdev: wireless device
3781 * @cookie: the request cookie
3782 * @chan: The current channel (from remain_on_channel request)
3783 * @duration: Duration in milliseconds that the driver intents to remain on the
3785 * @gfp: allocation flags
3787 void cfg80211_ready_on_channel(struct wireless_dev
*wdev
, u64 cookie
,
3788 struct ieee80211_channel
*chan
,
3789 unsigned int duration
, gfp_t gfp
);
3792 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3793 * @wdev: wireless device
3794 * @cookie: the request cookie
3795 * @chan: The current channel (from remain_on_channel request)
3796 * @gfp: allocation flags
3798 void cfg80211_remain_on_channel_expired(struct wireless_dev
*wdev
, u64 cookie
,
3799 struct ieee80211_channel
*chan
,
3804 * cfg80211_new_sta - notify userspace about station
3807 * @mac_addr: the station's address
3808 * @sinfo: the station information
3809 * @gfp: allocation flags
3811 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
3812 struct station_info
*sinfo
, gfp_t gfp
);
3815 * cfg80211_del_sta - notify userspace about deletion of a station
3818 * @mac_addr: the station's address
3819 * @gfp: allocation flags
3821 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
3824 * cfg80211_conn_failed - connection request failed notification
3827 * @mac_addr: the station's address
3828 * @reason: the reason for connection failure
3829 * @gfp: allocation flags
3831 * Whenever a station tries to connect to an AP and if the station
3832 * could not connect to the AP as the AP has rejected the connection
3833 * for some reasons, this function is called.
3835 * The reason for connection failure can be any of the value from
3836 * nl80211_connect_failed_reason enum
3838 void cfg80211_conn_failed(struct net_device
*dev
, const u8
*mac_addr
,
3839 enum nl80211_connect_failed_reason reason
,
3843 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3844 * @wdev: wireless device receiving the frame
3845 * @freq: Frequency on which the frame was received in MHz
3846 * @sig_dbm: signal strength in mBm, or 0 if unknown
3847 * @buf: Management frame (header + body)
3848 * @len: length of the frame data
3849 * @gfp: context flags
3851 * This function is called whenever an Action frame is received for a station
3852 * mode interface, but is not processed in kernel.
3854 * Return: %true if a user space application has registered for this frame.
3855 * For action frames, that makes it responsible for rejecting unrecognized
3856 * action frames; %false otherwise, in which case for action frames the
3857 * driver is responsible for rejecting the frame.
3859 bool cfg80211_rx_mgmt(struct wireless_dev
*wdev
, int freq
, int sig_dbm
,
3860 const u8
*buf
, size_t len
, gfp_t gfp
);
3863 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3864 * @wdev: wireless device receiving the frame
3865 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3866 * @buf: Management frame (header + body)
3867 * @len: length of the frame data
3868 * @ack: Whether frame was acknowledged
3869 * @gfp: context flags
3871 * This function is called whenever a management frame was requested to be
3872 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3873 * transmission attempt.
3875 void cfg80211_mgmt_tx_status(struct wireless_dev
*wdev
, u64 cookie
,
3876 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
3880 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3881 * @dev: network device
3882 * @rssi_event: the triggered RSSI event
3883 * @gfp: context flags
3885 * This function is called when a configured connection quality monitoring
3886 * rssi threshold reached event occurs.
3888 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
3889 enum nl80211_cqm_rssi_threshold_event rssi_event
,
3893 * cfg80211_radar_event - radar detection event
3895 * @chandef: chandef for the current channel
3896 * @gfp: context flags
3898 * This function is called when a radar is detected on the current chanenl.
3900 void cfg80211_radar_event(struct wiphy
*wiphy
,
3901 struct cfg80211_chan_def
*chandef
, gfp_t gfp
);
3904 * cfg80211_cac_event - Channel availability check (CAC) event
3905 * @netdev: network device
3906 * @event: type of event
3907 * @gfp: context flags
3909 * This function is called when a Channel availability check (CAC) is finished
3910 * or aborted. This must be called to notify the completion of a CAC process,
3911 * also by full-MAC drivers.
3913 void cfg80211_cac_event(struct net_device
*netdev
,
3914 enum nl80211_radar_event event
, gfp_t gfp
);
3918 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3919 * @dev: network device
3920 * @peer: peer's MAC address
3921 * @num_packets: how many packets were lost -- should be a fixed threshold
3922 * but probably no less than maybe 50, or maybe a throughput dependent
3923 * threshold (to account for temporary interference)
3924 * @gfp: context flags
3926 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
3927 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
3930 * cfg80211_cqm_txe_notify - TX error rate event
3931 * @dev: network device
3932 * @peer: peer's MAC address
3933 * @num_packets: how many packets were lost
3934 * @rate: % of packets which failed transmission
3935 * @intvl: interval (in s) over which the TX failure threshold was breached.
3936 * @gfp: context flags
3938 * Notify userspace when configured % TX failures over number of packets in a
3939 * given interval is exceeded.
3941 void cfg80211_cqm_txe_notify(struct net_device
*dev
, const u8
*peer
,
3942 u32 num_packets
, u32 rate
, u32 intvl
, gfp_t gfp
);
3945 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3946 * @dev: network device
3947 * @bssid: BSSID of AP (to avoid races)
3948 * @replay_ctr: new replay counter
3949 * @gfp: allocation flags
3951 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
3952 const u8
*replay_ctr
, gfp_t gfp
);
3955 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3956 * @dev: network device
3957 * @index: candidate index (the smaller the index, the higher the priority)
3958 * @bssid: BSSID of AP
3959 * @preauth: Whether AP advertises support for RSN pre-authentication
3960 * @gfp: allocation flags
3962 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
3963 const u8
*bssid
, bool preauth
, gfp_t gfp
);
3966 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3967 * @dev: The device the frame matched to
3968 * @addr: the transmitter address
3969 * @gfp: context flags
3971 * This function is used in AP mode (only!) to inform userspace that
3972 * a spurious class 3 frame was received, to be able to deauth the
3974 * Return: %true if the frame was passed to userspace (or this failed
3975 * for a reason other than not having a subscription.)
3977 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
3978 const u8
*addr
, gfp_t gfp
);
3981 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3982 * @dev: The device the frame matched to
3983 * @addr: the transmitter address
3984 * @gfp: context flags
3986 * This function is used in AP mode (only!) to inform userspace that
3987 * an associated station sent a 4addr frame but that wasn't expected.
3988 * It is allowed and desirable to send this event only once for each
3989 * station to avoid event flooding.
3990 * Return: %true if the frame was passed to userspace (or this failed
3991 * for a reason other than not having a subscription.)
3993 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
3994 const u8
*addr
, gfp_t gfp
);
3997 * cfg80211_probe_status - notify userspace about probe status
3998 * @dev: the device the probe was sent on
3999 * @addr: the address of the peer
4000 * @cookie: the cookie filled in @probe_client previously
4001 * @acked: indicates whether probe was acked or not
4002 * @gfp: allocation flags
4004 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
4005 u64 cookie
, bool acked
, gfp_t gfp
);
4008 * cfg80211_report_obss_beacon - report beacon from other APs
4009 * @wiphy: The wiphy that received the beacon
4011 * @len: length of the frame
4012 * @freq: frequency the frame was received on
4013 * @sig_dbm: signal strength in mBm, or 0 if unknown
4015 * Use this function to report to userspace when a beacon was
4016 * received. It is not useful to call this when there is no
4017 * netdev that is in AP/GO mode.
4019 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
4020 const u8
*frame
, size_t len
,
4021 int freq
, int sig_dbm
);
4024 * cfg80211_reg_can_beacon - check if beaconing is allowed
4026 * @chandef: the channel definition
4028 * Return: %true if there is no secondary channel or the secondary channel(s)
4029 * can be used for beaconing (i.e. is not a radar channel etc.)
4031 bool cfg80211_reg_can_beacon(struct wiphy
*wiphy
,
4032 struct cfg80211_chan_def
*chandef
);
4035 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
4036 * @dev: the device which switched channels
4037 * @chandef: the new channel definition
4039 * Acquires wdev_lock, so must only be called from sleepable driver context!
4041 void cfg80211_ch_switch_notify(struct net_device
*dev
,
4042 struct cfg80211_chan_def
*chandef
);
4045 * ieee80211_operating_class_to_band - convert operating class to band
4047 * @operating_class: the operating class to convert
4048 * @band: band pointer to fill
4050 * Returns %true if the conversion was successful, %false otherwise.
4052 bool ieee80211_operating_class_to_band(u8 operating_class
,
4053 enum ieee80211_band
*band
);
4056 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
4057 * @dev: the device on which the operation is requested
4058 * @peer: the MAC address of the peer device
4059 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
4060 * NL80211_TDLS_TEARDOWN)
4061 * @reason_code: the reason code for teardown request
4062 * @gfp: allocation flags
4064 * This function is used to request userspace to perform TDLS operation that
4065 * requires knowledge of keys, i.e., link setup or teardown when the AP
4066 * connection uses encryption. This is optional mechanism for the driver to use
4067 * if it can automatically determine when a TDLS link could be useful (e.g.,
4068 * based on traffic and signal strength for a peer).
4070 void cfg80211_tdls_oper_request(struct net_device
*dev
, const u8
*peer
,
4071 enum nl80211_tdls_operation oper
,
4072 u16 reason_code
, gfp_t gfp
);
4075 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
4076 * @rate: given rate_info to calculate bitrate from
4078 * return 0 if MCS index >= 32
4080 u32
cfg80211_calculate_bitrate(struct rate_info
*rate
);
4083 * cfg80211_unregister_wdev - remove the given wdev
4084 * @wdev: struct wireless_dev to remove
4086 * Call this function only for wdevs that have no netdev assigned,
4087 * e.g. P2P Devices. It removes the device from the list so that
4088 * it can no longer be used. It is necessary to call this function
4089 * even when cfg80211 requests the removal of the interface by
4090 * calling the del_virtual_intf() callback. The function must also
4091 * be called when the driver wishes to unregister the wdev, e.g.
4092 * when the device is unbound from the driver.
4094 * Requires the RTNL to be held.
4096 void cfg80211_unregister_wdev(struct wireless_dev
*wdev
);
4099 * struct cfg80211_ft_event - FT Information Elements
4101 * @ies_len: length of the FT IE in bytes
4102 * @target_ap: target AP's MAC address
4104 * @ric_ies_len: length of the RIC IE in bytes
4106 struct cfg80211_ft_event_params
{
4109 const u8
*target_ap
;
4115 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
4116 * @netdev: network device
4117 * @ft_event: IE information
4119 void cfg80211_ft_event(struct net_device
*netdev
,
4120 struct cfg80211_ft_event_params
*ft_event
);
4123 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
4124 * @ies: the input IE buffer
4125 * @len: the input length
4126 * @attr: the attribute ID to find
4127 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
4128 * if the function is only called to get the needed buffer size
4129 * @bufsize: size of the output buffer
4131 * The function finds a given P2P attribute in the (vendor) IEs and
4132 * copies its contents to the given buffer.
4134 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
4135 * malformed or the attribute can't be found (respectively), or the
4136 * length of the found attribute (which can be zero).
4138 int cfg80211_get_p2p_attr(const u8
*ies
, unsigned int len
,
4139 enum ieee80211_p2p_attr_id attr
,
4140 u8
*buf
, unsigned int bufsize
);
4143 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
4144 * @wdev: the wireless device reporting the wakeup
4145 * @wakeup: the wakeup report
4146 * @gfp: allocation flags
4148 * This function reports that the given device woke up. If it
4149 * caused the wakeup, report the reason(s), otherwise you may
4150 * pass %NULL as the @wakeup parameter to advertise that something
4151 * else caused the wakeup.
4153 void cfg80211_report_wowlan_wakeup(struct wireless_dev
*wdev
,
4154 struct cfg80211_wowlan_wakeup
*wakeup
,
4158 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
4160 * @wdev: the wireless device for which critical protocol is stopped.
4161 * @gfp: allocation flags
4163 * This function can be called by the driver to indicate it has reverted
4164 * operation back to normal. One reason could be that the duration given
4165 * by .crit_proto_start() has expired.
4167 void cfg80211_crit_proto_stopped(struct wireless_dev
*wdev
, gfp_t gfp
);
4169 /* Logging, debugging and troubleshooting/diagnostic helpers. */
4171 /* wiphy_printk helpers, similar to dev_printk */
4173 #define wiphy_printk(level, wiphy, format, args...) \
4174 dev_printk(level, &(wiphy)->dev, format, ##args)
4175 #define wiphy_emerg(wiphy, format, args...) \
4176 dev_emerg(&(wiphy)->dev, format, ##args)
4177 #define wiphy_alert(wiphy, format, args...) \
4178 dev_alert(&(wiphy)->dev, format, ##args)
4179 #define wiphy_crit(wiphy, format, args...) \
4180 dev_crit(&(wiphy)->dev, format, ##args)
4181 #define wiphy_err(wiphy, format, args...) \
4182 dev_err(&(wiphy)->dev, format, ##args)
4183 #define wiphy_warn(wiphy, format, args...) \
4184 dev_warn(&(wiphy)->dev, format, ##args)
4185 #define wiphy_notice(wiphy, format, args...) \
4186 dev_notice(&(wiphy)->dev, format, ##args)
4187 #define wiphy_info(wiphy, format, args...) \
4188 dev_info(&(wiphy)->dev, format, ##args)
4190 #define wiphy_debug(wiphy, format, args...) \
4191 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
4193 #define wiphy_dbg(wiphy, format, args...) \
4194 dev_dbg(&(wiphy)->dev, format, ##args)
4196 #if defined(VERBOSE_DEBUG)
4197 #define wiphy_vdbg wiphy_dbg
4199 #define wiphy_vdbg(wiphy, format, args...) \
4202 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
4208 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
4209 * of using a WARN/WARN_ON to get the message out, including the
4210 * file/line information and a backtrace.
4212 #define wiphy_WARN(wiphy, format, args...) \
4213 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
4215 #endif /* __NET_CFG80211_H */