1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2014 Intel Mobile Communications GmbH
8 * Copyright 2015 Intel Deutschland GmbH
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/netdevice.h>
16 #include <linux/debugfs.h>
17 #include <linux/list.h>
18 #include <linux/bug.h>
19 #include <linux/netlink.h>
20 #include <linux/skbuff.h>
21 #include <linux/nl80211.h>
22 #include <linux/if_ether.h>
23 #include <linux/ieee80211.h>
24 #include <linux/net.h>
25 #include <net/regulatory.h>
30 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
31 * userspace and drivers, and offers some utility functionality associated
32 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
33 * by all modern wireless drivers in Linux, so that they offer a consistent
34 * API through nl80211. For backward compatibility, cfg80211 also offers
35 * wireless extensions to userspace, but hides them from drivers completely.
37 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
43 * DOC: Device registration
45 * In order for a driver to use cfg80211, it must register the hardware device
46 * with cfg80211. This happens through a number of hardware capability structs
49 * The fundamental structure for each device is the 'wiphy', of which each
50 * instance describes a physical wireless device connected to the system. Each
51 * such wiphy can have zero, one, or many virtual interfaces associated with
52 * it, which need to be identified as such by pointing the network interface's
53 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
54 * the wireless part of the interface, normally this struct is embedded in the
55 * network interface's private data area. Drivers can optionally allow creating
56 * or destroying virtual interfaces on the fly, but without at least one or the
57 * ability to create some the wireless device isn't useful.
59 * Each wiphy structure contains device capability information, and also has
60 * a pointer to the various operations the driver offers. The definitions and
61 * structures here describe these capabilities in detail.
67 * wireless hardware capability structures
71 * enum ieee80211_channel_flags - channel flags
73 * Channel flags set by the regulatory control code.
75 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
76 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
77 * sending probe requests or beaconing.
78 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
79 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
81 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
83 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
84 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
85 * this flag indicates that an 80 MHz channel cannot use this
86 * channel as the control or any of the secondary channels.
87 * This may be due to the driver or due to regulatory bandwidth
89 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
90 * this flag indicates that an 160 MHz channel cannot use this
91 * channel as the control or any of the secondary channels.
92 * This may be due to the driver or due to regulatory bandwidth
94 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY
95 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
96 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted
98 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted
102 enum ieee80211_channel_flags
{
103 IEEE80211_CHAN_DISABLED
= 1<<0,
104 IEEE80211_CHAN_NO_IR
= 1<<1,
106 IEEE80211_CHAN_RADAR
= 1<<3,
107 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
108 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
109 IEEE80211_CHAN_NO_OFDM
= 1<<6,
110 IEEE80211_CHAN_NO_80MHZ
= 1<<7,
111 IEEE80211_CHAN_NO_160MHZ
= 1<<8,
112 IEEE80211_CHAN_INDOOR_ONLY
= 1<<9,
113 IEEE80211_CHAN_IR_CONCURRENT
= 1<<10,
114 IEEE80211_CHAN_NO_20MHZ
= 1<<11,
115 IEEE80211_CHAN_NO_10MHZ
= 1<<12,
118 #define IEEE80211_CHAN_NO_HT40 \
119 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
121 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000
122 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000)
125 * struct ieee80211_channel - channel definition
127 * This structure describes a single channel for use
130 * @center_freq: center frequency in MHz
131 * @hw_value: hardware-specific value for the channel
132 * @flags: channel flags from &enum ieee80211_channel_flags.
133 * @orig_flags: channel flags at registration time, used by regulatory
134 * code to support devices with additional restrictions
135 * @band: band this channel belongs to.
136 * @max_antenna_gain: maximum antenna gain in dBi
137 * @max_power: maximum transmission power (in dBm)
138 * @max_reg_power: maximum regulatory transmission power (in dBm)
139 * @beacon_found: helper to regulatory code to indicate when a beacon
140 * has been found on this channel. Use regulatory_hint_found_beacon()
141 * to enable this, this is useful only on 5 GHz band.
142 * @orig_mag: internal use
143 * @orig_mpwr: internal use
144 * @dfs_state: current state of this channel. Only relevant if radar is required
146 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
147 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
149 struct ieee80211_channel
{
150 enum nl80211_band band
;
154 int max_antenna_gain
;
159 int orig_mag
, orig_mpwr
;
160 enum nl80211_dfs_state dfs_state
;
161 unsigned long dfs_state_entered
;
162 unsigned int dfs_cac_ms
;
166 * enum ieee80211_rate_flags - rate flags
168 * Hardware/specification flags for rates. These are structured
169 * in a way that allows using the same bitrate structure for
170 * different bands/PHY modes.
172 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
173 * preamble on this bitrate; only relevant in 2.4GHz band and
175 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
176 * when used with 802.11a (on the 5 GHz band); filled by the
177 * core code when registering the wiphy.
178 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
179 * when used with 802.11b (on the 2.4 GHz band); filled by the
180 * core code when registering the wiphy.
181 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
182 * when used with 802.11g (on the 2.4 GHz band); filled by the
183 * core code when registering the wiphy.
184 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
185 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
186 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
188 enum ieee80211_rate_flags
{
189 IEEE80211_RATE_SHORT_PREAMBLE
= 1<<0,
190 IEEE80211_RATE_MANDATORY_A
= 1<<1,
191 IEEE80211_RATE_MANDATORY_B
= 1<<2,
192 IEEE80211_RATE_MANDATORY_G
= 1<<3,
193 IEEE80211_RATE_ERP_G
= 1<<4,
194 IEEE80211_RATE_SUPPORTS_5MHZ
= 1<<5,
195 IEEE80211_RATE_SUPPORTS_10MHZ
= 1<<6,
199 * enum ieee80211_bss_type - BSS type filter
201 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
202 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS
203 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS
204 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
205 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
207 enum ieee80211_bss_type
{
208 IEEE80211_BSS_TYPE_ESS
,
209 IEEE80211_BSS_TYPE_PBSS
,
210 IEEE80211_BSS_TYPE_IBSS
,
211 IEEE80211_BSS_TYPE_MBSS
,
212 IEEE80211_BSS_TYPE_ANY
216 * enum ieee80211_privacy - BSS privacy filter
218 * @IEEE80211_PRIVACY_ON: privacy bit set
219 * @IEEE80211_PRIVACY_OFF: privacy bit clear
220 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
222 enum ieee80211_privacy
{
223 IEEE80211_PRIVACY_ON
,
224 IEEE80211_PRIVACY_OFF
,
225 IEEE80211_PRIVACY_ANY
228 #define IEEE80211_PRIVACY(x) \
229 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
232 * struct ieee80211_rate - bitrate definition
234 * This structure describes a bitrate that an 802.11 PHY can
235 * operate with. The two values @hw_value and @hw_value_short
236 * are only for driver use when pointers to this structure are
239 * @flags: rate-specific flags
240 * @bitrate: bitrate in units of 100 Kbps
241 * @hw_value: driver/hardware value for this rate
242 * @hw_value_short: driver/hardware value for this rate when
243 * short preamble is used
245 struct ieee80211_rate
{
248 u16 hw_value
, hw_value_short
;
252 * struct ieee80211_sta_ht_cap - STA's HT capabilities
254 * This structure describes most essential parameters needed
255 * to describe 802.11n HT capabilities for an STA.
257 * @ht_supported: is HT supported by the STA
258 * @cap: HT capabilities map as described in 802.11n spec
259 * @ampdu_factor: Maximum A-MPDU length factor
260 * @ampdu_density: Minimum A-MPDU spacing
261 * @mcs: Supported MCS rates
263 struct ieee80211_sta_ht_cap
{
264 u16 cap
; /* use IEEE80211_HT_CAP_ */
268 struct ieee80211_mcs_info mcs
;
272 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
274 * This structure describes most essential parameters needed
275 * to describe 802.11ac VHT capabilities for an STA.
277 * @vht_supported: is VHT supported by the STA
278 * @cap: VHT capabilities map as described in 802.11ac spec
279 * @vht_mcs: Supported VHT MCS rates
281 struct ieee80211_sta_vht_cap
{
283 u32 cap
; /* use IEEE80211_VHT_CAP_ */
284 struct ieee80211_vht_mcs_info vht_mcs
;
288 * struct ieee80211_supported_band - frequency band definition
290 * This structure describes a frequency band a wiphy
291 * is able to operate in.
293 * @channels: Array of channels the hardware can operate in
295 * @band: the band this structure represents
296 * @n_channels: Number of channels in @channels
297 * @bitrates: Array of bitrates the hardware can operate with
298 * in this band. Must be sorted to give a valid "supported
299 * rates" IE, i.e. CCK rates first, then OFDM.
300 * @n_bitrates: Number of bitrates in @bitrates
301 * @ht_cap: HT capabilities in this band
302 * @vht_cap: VHT capabilities in this band
304 struct ieee80211_supported_band
{
305 struct ieee80211_channel
*channels
;
306 struct ieee80211_rate
*bitrates
;
307 enum nl80211_band band
;
310 struct ieee80211_sta_ht_cap ht_cap
;
311 struct ieee80211_sta_vht_cap vht_cap
;
315 * Wireless hardware/device configuration structures and methods
319 * DOC: Actions and configuration
321 * Each wireless device and each virtual interface offer a set of configuration
322 * operations and other actions that are invoked by userspace. Each of these
323 * actions is described in the operations structure, and the parameters these
324 * operations use are described separately.
326 * Additionally, some operations are asynchronous and expect to get status
327 * information via some functions that drivers need to call.
329 * Scanning and BSS list handling with its associated functionality is described
330 * in a separate chapter.
334 * struct vif_params - describes virtual interface parameters
335 * @use_4addr: use 4-address frames
336 * @macaddr: address to use for this virtual interface.
337 * If this parameter is set to zero address the driver may
338 * determine the address as needed.
339 * This feature is only fully supported by drivers that enable the
340 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
341 ** only p2p devices with specified MAC.
345 u8 macaddr
[ETH_ALEN
];
349 * struct key_params - key information
351 * Information about a key
354 * @key_len: length of key material
355 * @cipher: cipher suite selector
356 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
357 * with the get_key() callback, must be in little endian,
358 * length given by @seq_len.
359 * @seq_len: length of @seq.
370 * struct cfg80211_chan_def - channel definition
371 * @chan: the (control) channel
372 * @width: channel width
373 * @center_freq1: center frequency of first segment
374 * @center_freq2: center frequency of second segment
375 * (only with 80+80 MHz)
377 struct cfg80211_chan_def
{
378 struct ieee80211_channel
*chan
;
379 enum nl80211_chan_width width
;
385 * cfg80211_get_chandef_type - return old channel type from chandef
386 * @chandef: the channel definition
388 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
389 * chandef, which must have a bandwidth allowing this conversion.
391 static inline enum nl80211_channel_type
392 cfg80211_get_chandef_type(const struct cfg80211_chan_def
*chandef
)
394 switch (chandef
->width
) {
395 case NL80211_CHAN_WIDTH_20_NOHT
:
396 return NL80211_CHAN_NO_HT
;
397 case NL80211_CHAN_WIDTH_20
:
398 return NL80211_CHAN_HT20
;
399 case NL80211_CHAN_WIDTH_40
:
400 if (chandef
->center_freq1
> chandef
->chan
->center_freq
)
401 return NL80211_CHAN_HT40PLUS
;
402 return NL80211_CHAN_HT40MINUS
;
405 return NL80211_CHAN_NO_HT
;
410 * cfg80211_chandef_create - create channel definition using channel type
411 * @chandef: the channel definition struct to fill
412 * @channel: the control channel
413 * @chantype: the channel type
415 * Given a channel type, create a channel definition.
417 void cfg80211_chandef_create(struct cfg80211_chan_def
*chandef
,
418 struct ieee80211_channel
*channel
,
419 enum nl80211_channel_type chantype
);
422 * cfg80211_chandef_identical - check if two channel definitions are identical
423 * @chandef1: first channel definition
424 * @chandef2: second channel definition
426 * Return: %true if the channels defined by the channel definitions are
427 * identical, %false otherwise.
430 cfg80211_chandef_identical(const struct cfg80211_chan_def
*chandef1
,
431 const struct cfg80211_chan_def
*chandef2
)
433 return (chandef1
->chan
== chandef2
->chan
&&
434 chandef1
->width
== chandef2
->width
&&
435 chandef1
->center_freq1
== chandef2
->center_freq1
&&
436 chandef1
->center_freq2
== chandef2
->center_freq2
);
440 * cfg80211_chandef_compatible - check if two channel definitions are compatible
441 * @chandef1: first channel definition
442 * @chandef2: second channel definition
444 * Return: %NULL if the given channel definitions are incompatible,
445 * chandef1 or chandef2 otherwise.
447 const struct cfg80211_chan_def
*
448 cfg80211_chandef_compatible(const struct cfg80211_chan_def
*chandef1
,
449 const struct cfg80211_chan_def
*chandef2
);
452 * cfg80211_chandef_valid - check if a channel definition is valid
453 * @chandef: the channel definition to check
454 * Return: %true if the channel definition is valid. %false otherwise.
456 bool cfg80211_chandef_valid(const struct cfg80211_chan_def
*chandef
);
459 * cfg80211_chandef_usable - check if secondary channels can be used
460 * @wiphy: the wiphy to validate against
461 * @chandef: the channel definition to check
462 * @prohibited_flags: the regulatory channel flags that must not be set
463 * Return: %true if secondary channels are usable. %false otherwise.
465 bool cfg80211_chandef_usable(struct wiphy
*wiphy
,
466 const struct cfg80211_chan_def
*chandef
,
467 u32 prohibited_flags
);
470 * cfg80211_chandef_dfs_required - checks if radar detection is required
471 * @wiphy: the wiphy to validate against
472 * @chandef: the channel definition to check
473 * @iftype: the interface type as specified in &enum nl80211_iftype
475 * 1 if radar detection is required, 0 if it is not, < 0 on error
477 int cfg80211_chandef_dfs_required(struct wiphy
*wiphy
,
478 const struct cfg80211_chan_def
*chandef
,
479 enum nl80211_iftype iftype
);
482 * ieee80211_chandef_rate_flags - returns rate flags for a channel
484 * In some channel types, not all rates may be used - for example CCK
485 * rates may not be used in 5/10 MHz channels.
487 * @chandef: channel definition for the channel
489 * Returns: rate flags which apply for this channel
491 static inline enum ieee80211_rate_flags
492 ieee80211_chandef_rate_flags(struct cfg80211_chan_def
*chandef
)
494 switch (chandef
->width
) {
495 case NL80211_CHAN_WIDTH_5
:
496 return IEEE80211_RATE_SUPPORTS_5MHZ
;
497 case NL80211_CHAN_WIDTH_10
:
498 return IEEE80211_RATE_SUPPORTS_10MHZ
;
506 * ieee80211_chandef_max_power - maximum transmission power for the chandef
508 * In some regulations, the transmit power may depend on the configured channel
509 * bandwidth which may be defined as dBm/MHz. This function returns the actual
510 * max_power for non-standard (20 MHz) channels.
512 * @chandef: channel definition for the channel
514 * Returns: maximum allowed transmission power in dBm for the chandef
517 ieee80211_chandef_max_power(struct cfg80211_chan_def
*chandef
)
519 switch (chandef
->width
) {
520 case NL80211_CHAN_WIDTH_5
:
521 return min(chandef
->chan
->max_reg_power
- 6,
522 chandef
->chan
->max_power
);
523 case NL80211_CHAN_WIDTH_10
:
524 return min(chandef
->chan
->max_reg_power
- 3,
525 chandef
->chan
->max_power
);
529 return chandef
->chan
->max_power
;
533 * enum survey_info_flags - survey information flags
535 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
536 * @SURVEY_INFO_IN_USE: channel is currently being used
537 * @SURVEY_INFO_TIME: active time (in ms) was filled in
538 * @SURVEY_INFO_TIME_BUSY: busy time was filled in
539 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in
540 * @SURVEY_INFO_TIME_RX: receive time was filled in
541 * @SURVEY_INFO_TIME_TX: transmit time was filled in
542 * @SURVEY_INFO_TIME_SCAN: scan time was filled in
544 * Used by the driver to indicate which info in &struct survey_info
545 * it has filled in during the get_survey().
547 enum survey_info_flags
{
548 SURVEY_INFO_NOISE_DBM
= BIT(0),
549 SURVEY_INFO_IN_USE
= BIT(1),
550 SURVEY_INFO_TIME
= BIT(2),
551 SURVEY_INFO_TIME_BUSY
= BIT(3),
552 SURVEY_INFO_TIME_EXT_BUSY
= BIT(4),
553 SURVEY_INFO_TIME_RX
= BIT(5),
554 SURVEY_INFO_TIME_TX
= BIT(6),
555 SURVEY_INFO_TIME_SCAN
= BIT(7),
559 * struct survey_info - channel survey response
561 * @channel: the channel this survey record reports, may be %NULL for a single
562 * record to report global statistics
563 * @filled: bitflag of flags from &enum survey_info_flags
564 * @noise: channel noise in dBm. This and all following fields are
566 * @time: amount of time in ms the radio was turn on (on the channel)
567 * @time_busy: amount of time the primary channel was sensed busy
568 * @time_ext_busy: amount of time the extension channel was sensed busy
569 * @time_rx: amount of time the radio spent receiving data
570 * @time_tx: amount of time the radio spent transmitting data
571 * @time_scan: amount of time the radio spent for scanning
573 * Used by dump_survey() to report back per-channel survey information.
575 * This structure can later be expanded with things like
576 * channel duty cycle etc.
579 struct ieee80211_channel
*channel
;
591 * struct cfg80211_crypto_settings - Crypto settings
592 * @wpa_versions: indicates which, if any, WPA versions are enabled
593 * (from enum nl80211_wpa_versions)
594 * @cipher_group: group key cipher suite (or 0 if unset)
595 * @n_ciphers_pairwise: number of AP supported unicast ciphers
596 * @ciphers_pairwise: unicast key cipher suites
597 * @n_akm_suites: number of AKM suites
598 * @akm_suites: AKM suites
599 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
600 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
601 * required to assume that the port is unauthorized until authorized by
602 * user space. Otherwise, port is marked authorized by default.
603 * @control_port_ethertype: the control port protocol that should be
604 * allowed through even on unauthorized ports
605 * @control_port_no_encrypt: TRUE to prevent encryption of control port
608 struct cfg80211_crypto_settings
{
611 int n_ciphers_pairwise
;
612 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
614 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
616 __be16 control_port_ethertype
;
617 bool control_port_no_encrypt
;
621 * struct cfg80211_beacon_data - beacon data
622 * @head: head portion of beacon (before TIM IE)
623 * or %NULL if not changed
624 * @tail: tail portion of beacon (after TIM IE)
625 * or %NULL if not changed
626 * @head_len: length of @head
627 * @tail_len: length of @tail
628 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
629 * @beacon_ies_len: length of beacon_ies in octets
630 * @proberesp_ies: extra information element(s) to add into Probe Response
632 * @proberesp_ies_len: length of proberesp_ies in octets
633 * @assocresp_ies: extra information element(s) to add into (Re)Association
634 * Response frames or %NULL
635 * @assocresp_ies_len: length of assocresp_ies in octets
636 * @probe_resp_len: length of probe response template (@probe_resp)
637 * @probe_resp: probe response template (AP mode only)
639 struct cfg80211_beacon_data
{
640 const u8
*head
, *tail
;
641 const u8
*beacon_ies
;
642 const u8
*proberesp_ies
;
643 const u8
*assocresp_ies
;
644 const u8
*probe_resp
;
646 size_t head_len
, tail_len
;
647 size_t beacon_ies_len
;
648 size_t proberesp_ies_len
;
649 size_t assocresp_ies_len
;
650 size_t probe_resp_len
;
658 * struct cfg80211_acl_data - Access control list data
660 * @acl_policy: ACL policy to be applied on the station's
661 * entry specified by mac_addr
662 * @n_acl_entries: Number of MAC address entries passed
663 * @mac_addrs: List of MAC addresses of stations to be used for ACL
665 struct cfg80211_acl_data
{
666 enum nl80211_acl_policy acl_policy
;
670 struct mac_address mac_addrs
[];
674 * struct cfg80211_ap_settings - AP configuration
676 * Used to configure an AP interface.
678 * @chandef: defines the channel to use
679 * @beacon: beacon data
680 * @beacon_interval: beacon interval
681 * @dtim_period: DTIM period
682 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
684 * @ssid_len: length of @ssid
685 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
686 * @crypto: crypto settings
687 * @privacy: the BSS uses privacy
688 * @auth_type: Authentication type (algorithm)
689 * @smps_mode: SMPS mode
690 * @inactivity_timeout: time in seconds to determine station's inactivity.
691 * @p2p_ctwindow: P2P CT Window
692 * @p2p_opp_ps: P2P opportunistic PS
693 * @acl: ACL configuration used by the drivers which has support for
694 * MAC address based access control
696 struct cfg80211_ap_settings
{
697 struct cfg80211_chan_def chandef
;
699 struct cfg80211_beacon_data beacon
;
701 int beacon_interval
, dtim_period
;
704 enum nl80211_hidden_ssid hidden_ssid
;
705 struct cfg80211_crypto_settings crypto
;
707 enum nl80211_auth_type auth_type
;
708 enum nl80211_smps_mode smps_mode
;
709 int inactivity_timeout
;
712 const struct cfg80211_acl_data
*acl
;
716 * struct cfg80211_csa_settings - channel switch settings
718 * Used for channel switch
720 * @chandef: defines the channel to use after the switch
721 * @beacon_csa: beacon data while performing the switch
722 * @counter_offsets_beacon: offsets of the counters within the beacon (tail)
723 * @counter_offsets_presp: offsets of the counters within the probe response
724 * @n_counter_offsets_beacon: number of csa counters the beacon (tail)
725 * @n_counter_offsets_presp: number of csa counters in the probe response
726 * @beacon_after: beacon data to be used on the new channel
727 * @radar_required: whether radar detection is required on the new channel
728 * @block_tx: whether transmissions should be blocked while changing
729 * @count: number of beacons until switch
731 struct cfg80211_csa_settings
{
732 struct cfg80211_chan_def chandef
;
733 struct cfg80211_beacon_data beacon_csa
;
734 const u16
*counter_offsets_beacon
;
735 const u16
*counter_offsets_presp
;
736 unsigned int n_counter_offsets_beacon
;
737 unsigned int n_counter_offsets_presp
;
738 struct cfg80211_beacon_data beacon_after
;
745 * enum station_parameters_apply_mask - station parameter values to apply
746 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
747 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
748 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
750 * Not all station parameters have in-band "no change" signalling,
751 * for those that don't these flags will are used.
753 enum station_parameters_apply_mask
{
754 STATION_PARAM_APPLY_UAPSD
= BIT(0),
755 STATION_PARAM_APPLY_CAPABILITY
= BIT(1),
756 STATION_PARAM_APPLY_PLINK_STATE
= BIT(2),
760 * struct station_parameters - station parameters
762 * Used to change and create a new station.
764 * @vlan: vlan interface station should belong to
765 * @supported_rates: supported rates in IEEE 802.11 format
766 * (or NULL for no change)
767 * @supported_rates_len: number of supported rates
768 * @sta_flags_mask: station flags that changed
769 * (bitmask of BIT(NL80211_STA_FLAG_...))
770 * @sta_flags_set: station flags values
771 * (bitmask of BIT(NL80211_STA_FLAG_...))
772 * @listen_interval: listen interval or -1 for no change
773 * @aid: AID or zero for no change
774 * @plink_action: plink action to take
775 * @plink_state: set the peer link state for a station
776 * @ht_capa: HT capabilities of station
777 * @vht_capa: VHT capabilities of station
778 * @uapsd_queues: bitmap of queues configured for uapsd. same format
779 * as the AC bitmap in the QoS info field
780 * @max_sp: max Service Period. same format as the MAX_SP in the
781 * QoS info field (but already shifted down)
782 * @sta_modify_mask: bitmap indicating which parameters changed
783 * (for those that don't have a natural "no change" value),
784 * see &enum station_parameters_apply_mask
785 * @local_pm: local link-specific mesh power save mode (no change when set
787 * @capability: station capability
788 * @ext_capab: extended capabilities of the station
789 * @ext_capab_len: number of extended capabilities
790 * @supported_channels: supported channels in IEEE 802.11 format
791 * @supported_channels_len: number of supported channels
792 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
793 * @supported_oper_classes_len: number of supported operating classes
794 * @opmode_notif: operating mode field from Operating Mode Notification
795 * @opmode_notif_used: information if operating mode field is used
797 struct station_parameters
{
798 const u8
*supported_rates
;
799 struct net_device
*vlan
;
800 u32 sta_flags_mask
, sta_flags_set
;
804 u8 supported_rates_len
;
807 const struct ieee80211_ht_cap
*ht_capa
;
808 const struct ieee80211_vht_cap
*vht_capa
;
811 enum nl80211_mesh_power_mode local_pm
;
815 const u8
*supported_channels
;
816 u8 supported_channels_len
;
817 const u8
*supported_oper_classes
;
818 u8 supported_oper_classes_len
;
820 bool opmode_notif_used
;
824 * struct station_del_parameters - station deletion parameters
826 * Used to delete a station entry (or all stations).
828 * @mac: MAC address of the station to remove or NULL to remove all stations
829 * @subtype: Management frame subtype to use for indicating removal
830 * (10 = Disassociation, 12 = Deauthentication)
831 * @reason_code: Reason code for the Disassociation/Deauthentication frame
833 struct station_del_parameters
{
840 * enum cfg80211_station_type - the type of station being modified
841 * @CFG80211_STA_AP_CLIENT: client of an AP interface
842 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still
843 * unassociated (update properties for this type of client is permitted)
844 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
845 * the AP MLME in the device
846 * @CFG80211_STA_AP_STA: AP station on managed interface
847 * @CFG80211_STA_IBSS: IBSS station
848 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
849 * while TDLS setup is in progress, it moves out of this state when
850 * being marked authorized; use this only if TDLS with external setup is
852 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
853 * entry that is operating, has been marked authorized by userspace)
854 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
855 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
857 enum cfg80211_station_type
{
858 CFG80211_STA_AP_CLIENT
,
859 CFG80211_STA_AP_CLIENT_UNASSOC
,
860 CFG80211_STA_AP_MLME_CLIENT
,
863 CFG80211_STA_TDLS_PEER_SETUP
,
864 CFG80211_STA_TDLS_PEER_ACTIVE
,
865 CFG80211_STA_MESH_PEER_KERNEL
,
866 CFG80211_STA_MESH_PEER_USER
,
870 * cfg80211_check_station_change - validate parameter changes
871 * @wiphy: the wiphy this operates on
872 * @params: the new parameters for a station
873 * @statype: the type of station being modified
875 * Utility function for the @change_station driver method. Call this function
876 * with the appropriate station type looking up the station (and checking that
877 * it exists). It will verify whether the station change is acceptable, and if
878 * not will return an error code. Note that it may modify the parameters for
879 * backward compatibility reasons, so don't use them before calling this.
881 int cfg80211_check_station_change(struct wiphy
*wiphy
,
882 struct station_parameters
*params
,
883 enum cfg80211_station_type statype
);
886 * enum station_info_rate_flags - bitrate info flags
888 * Used by the driver to indicate the specific rate transmission
889 * type for 802.11n transmissions.
891 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
892 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
893 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
894 * @RATE_INFO_FLAGS_60G: 60GHz MCS
896 enum rate_info_flags
{
897 RATE_INFO_FLAGS_MCS
= BIT(0),
898 RATE_INFO_FLAGS_VHT_MCS
= BIT(1),
899 RATE_INFO_FLAGS_SHORT_GI
= BIT(2),
900 RATE_INFO_FLAGS_60G
= BIT(3),
904 * enum rate_info_bw - rate bandwidth information
906 * Used by the driver to indicate the rate bandwidth.
908 * @RATE_INFO_BW_5: 5 MHz bandwidth
909 * @RATE_INFO_BW_10: 10 MHz bandwidth
910 * @RATE_INFO_BW_20: 20 MHz bandwidth
911 * @RATE_INFO_BW_40: 40 MHz bandwidth
912 * @RATE_INFO_BW_80: 80 MHz bandwidth
913 * @RATE_INFO_BW_160: 160 MHz bandwidth
925 * struct rate_info - bitrate information
927 * Information about a receiving or transmitting bitrate
929 * @flags: bitflag of flags from &enum rate_info_flags
930 * @mcs: mcs index if struct describes a 802.11n bitrate
931 * @legacy: bitrate in 100kbit/s for 802.11abg
932 * @nss: number of streams (VHT only)
933 * @bw: bandwidth (from &enum rate_info_bw)
944 * enum station_info_rate_flags - bitrate info flags
946 * Used by the driver to indicate the specific rate transmission
947 * type for 802.11n transmissions.
949 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
950 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
951 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
953 enum bss_param_flags
{
954 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
955 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
956 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
960 * struct sta_bss_parameters - BSS parameters for the attached station
962 * Information about the currently associated BSS
964 * @flags: bitflag of flags from &enum bss_param_flags
965 * @dtim_period: DTIM period for the BSS
966 * @beacon_interval: beacon interval
968 struct sta_bss_parameters
{
975 * struct cfg80211_tid_stats - per-TID statistics
976 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to
977 * indicate the relevant values in this struct are filled
978 * @rx_msdu: number of received MSDUs
979 * @tx_msdu: number of (attempted) transmitted MSDUs
980 * @tx_msdu_retries: number of retries (not counting the first) for
982 * @tx_msdu_failed: number of failed transmitted MSDUs
984 struct cfg80211_tid_stats
{
992 #define IEEE80211_MAX_CHAINS 4
995 * struct station_info - station information
997 * Station information filled by driver for get_station() and dump_station.
999 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to
1000 * indicate the relevant values in this struct for them
1001 * @connected_time: time(in secs) since a station is last connected
1002 * @inactive_time: time since last station activity (tx/rx) in milliseconds
1003 * @rx_bytes: bytes (size of MPDUs) received from this station
1004 * @tx_bytes: bytes (size of MPDUs) transmitted to this station
1005 * @llid: mesh local link id
1006 * @plid: mesh peer link id
1007 * @plink_state: mesh peer link state
1008 * @signal: The signal strength, type depends on the wiphy's signal_type.
1009 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1010 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
1011 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
1012 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
1013 * @chain_signal: per-chain signal strength of last received packet in dBm
1014 * @chain_signal_avg: per-chain signal strength average in dBm
1015 * @txrate: current unicast bitrate from this station
1016 * @rxrate: current unicast bitrate to this station
1017 * @rx_packets: packets (MSDUs & MMPDUs) received from this station
1018 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station
1019 * @tx_retries: cumulative retry counts (MPDUs)
1020 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK)
1021 * @rx_dropped_misc: Dropped for un-specified reason.
1022 * @bss_param: current BSS parameters
1023 * @generation: generation number for nl80211 dumps.
1024 * This number should increase every time the list of stations
1025 * changes, i.e. when a station is added or removed, so that
1026 * userspace can tell whether it got a consistent snapshot.
1027 * @assoc_req_ies: IEs from (Re)Association Request.
1028 * This is used only when in AP mode with drivers that do not use
1029 * user space MLME/SME implementation. The information is provided for
1030 * the cfg80211_new_sta() calls to notify user space of the IEs.
1031 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1032 * @sta_flags: station flags mask & values
1033 * @beacon_loss_count: Number of times beacon loss event has triggered.
1034 * @t_offset: Time offset of the station relative to this host.
1035 * @local_pm: local mesh STA power save mode
1036 * @peer_pm: peer mesh STA power save mode
1037 * @nonpeer_pm: non-peer mesh STA power save mode
1038 * @expected_throughput: expected throughput in kbps (including 802.11 headers)
1039 * towards this station.
1040 * @rx_beacon: number of beacons received from this peer
1041 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received
1043 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last
1044 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs.
1046 struct station_info
{
1059 s8 chain_signal
[IEEE80211_MAX_CHAINS
];
1060 s8 chain_signal_avg
[IEEE80211_MAX_CHAINS
];
1062 struct rate_info txrate
;
1063 struct rate_info rxrate
;
1068 u32 rx_dropped_misc
;
1069 struct sta_bss_parameters bss_param
;
1070 struct nl80211_sta_flag_update sta_flags
;
1074 const u8
*assoc_req_ies
;
1075 size_t assoc_req_ies_len
;
1077 u32 beacon_loss_count
;
1079 enum nl80211_mesh_power_mode local_pm
;
1080 enum nl80211_mesh_power_mode peer_pm
;
1081 enum nl80211_mesh_power_mode nonpeer_pm
;
1083 u32 expected_throughput
;
1086 u8 rx_beacon_signal_avg
;
1087 struct cfg80211_tid_stats pertid
[IEEE80211_NUM_TIDS
+ 1];
1091 * cfg80211_get_station - retrieve information about a given station
1092 * @dev: the device where the station is supposed to be connected to
1093 * @mac_addr: the mac address of the station of interest
1094 * @sinfo: pointer to the structure to fill with the information
1096 * Returns 0 on success and sinfo is filled with the available information
1097 * otherwise returns a negative error code and the content of sinfo has to be
1098 * considered undefined.
1100 int cfg80211_get_station(struct net_device
*dev
, const u8
*mac_addr
,
1101 struct station_info
*sinfo
);
1104 * enum monitor_flags - monitor flags
1106 * Monitor interface configuration flags. Note that these must be the bits
1107 * according to the nl80211 flags.
1109 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
1110 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
1111 * @MONITOR_FLAG_CONTROL: pass control frames
1112 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
1113 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
1114 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1116 enum monitor_flags
{
1117 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
1118 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
1119 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
1120 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
1121 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
1122 MONITOR_FLAG_ACTIVE
= 1<<NL80211_MNTR_FLAG_ACTIVE
,
1126 * enum mpath_info_flags - mesh path information flags
1128 * Used by the driver to indicate which info in &struct mpath_info it has filled
1129 * in during get_station() or dump_station().
1131 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
1132 * @MPATH_INFO_SN: @sn filled
1133 * @MPATH_INFO_METRIC: @metric filled
1134 * @MPATH_INFO_EXPTIME: @exptime filled
1135 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
1136 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
1137 * @MPATH_INFO_FLAGS: @flags filled
1139 enum mpath_info_flags
{
1140 MPATH_INFO_FRAME_QLEN
= BIT(0),
1141 MPATH_INFO_SN
= BIT(1),
1142 MPATH_INFO_METRIC
= BIT(2),
1143 MPATH_INFO_EXPTIME
= BIT(3),
1144 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
1145 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
1146 MPATH_INFO_FLAGS
= BIT(6),
1150 * struct mpath_info - mesh path information
1152 * Mesh path information filled by driver for get_mpath() and dump_mpath().
1154 * @filled: bitfield of flags from &enum mpath_info_flags
1155 * @frame_qlen: number of queued frames for this destination
1156 * @sn: target sequence number
1157 * @metric: metric (cost) of this mesh path
1158 * @exptime: expiration time for the mesh path from now, in msecs
1159 * @flags: mesh path flags
1160 * @discovery_timeout: total mesh path discovery timeout, in msecs
1161 * @discovery_retries: mesh path discovery retries
1162 * @generation: generation number for nl80211 dumps.
1163 * This number should increase every time the list of mesh paths
1164 * changes, i.e. when a station is added or removed, so that
1165 * userspace can tell whether it got a consistent snapshot.
1173 u32 discovery_timeout
;
1174 u8 discovery_retries
;
1181 * struct bss_parameters - BSS parameters
1183 * Used to change BSS parameters (mainly for AP mode).
1185 * @use_cts_prot: Whether to use CTS protection
1186 * (0 = no, 1 = yes, -1 = do not change)
1187 * @use_short_preamble: Whether the use of short preambles is allowed
1188 * (0 = no, 1 = yes, -1 = do not change)
1189 * @use_short_slot_time: Whether the use of short slot time is allowed
1190 * (0 = no, 1 = yes, -1 = do not change)
1191 * @basic_rates: basic rates in IEEE 802.11 format
1192 * (or NULL for no change)
1193 * @basic_rates_len: number of basic rates
1194 * @ap_isolate: do not forward packets between connected stations
1195 * @ht_opmode: HT Operation mode
1196 * (u16 = opmode, -1 = do not change)
1197 * @p2p_ctwindow: P2P CT Window (-1 = no change)
1198 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1200 struct bss_parameters
{
1202 int use_short_preamble
;
1203 int use_short_slot_time
;
1204 const u8
*basic_rates
;
1208 s8 p2p_ctwindow
, p2p_opp_ps
;
1212 * struct mesh_config - 802.11s mesh configuration
1214 * These parameters can be changed while the mesh is active.
1216 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
1217 * by the Mesh Peering Open message
1218 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
1219 * used by the Mesh Peering Open message
1220 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
1221 * the mesh peering management to close a mesh peering
1222 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
1224 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
1225 * be sent to establish a new peer link instance in a mesh
1226 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
1227 * @element_ttl: the value of TTL field set at a mesh STA for path selection
1229 * @auto_open_plinks: whether we should automatically open peer links when we
1230 * detect compatible mesh peers
1231 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
1232 * synchronize to for 11s default synchronization method
1233 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
1234 * that an originator mesh STA can send to a particular path target
1235 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
1236 * @min_discovery_timeout: the minimum length of time to wait until giving up on
1237 * a path discovery in milliseconds
1238 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
1239 * receiving a PREQ shall consider the forwarding information from the
1240 * root to be valid. (TU = time unit)
1241 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
1242 * which a mesh STA can send only one action frame containing a PREQ
1244 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
1245 * which a mesh STA can send only one Action frame containing a PERR
1247 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
1248 * it takes for an HWMP information element to propagate across the mesh
1249 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
1250 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
1251 * announcements are transmitted
1252 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
1253 * station has access to a broader network beyond the MBSS. (This is
1254 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
1255 * only means that the station will announce others it's a mesh gate, but
1256 * not necessarily using the gate announcement protocol. Still keeping the
1257 * same nomenclature to be in sync with the spec)
1258 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
1259 * entity (default is TRUE - forwarding entity)
1260 * @rssi_threshold: the threshold for average signal strength of candidate
1261 * station to establish a peer link
1262 * @ht_opmode: mesh HT protection mode
1264 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
1265 * receiving a proactive PREQ shall consider the forwarding information to
1266 * the root mesh STA to be valid.
1268 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
1269 * PREQs are transmitted.
1270 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
1271 * during which a mesh STA can send only one Action frame containing
1272 * a PREQ element for root path confirmation.
1273 * @power_mode: The default mesh power save mode which will be the initial
1274 * setting for new peer links.
1275 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
1276 * after transmitting its beacon.
1277 * @plink_timeout: If no tx activity is seen from a STA we've established
1278 * peering with for longer than this time (in seconds), then remove it
1279 * from the STA's list of peers. Default is 30 minutes.
1281 struct mesh_config
{
1282 u16 dot11MeshRetryTimeout
;
1283 u16 dot11MeshConfirmTimeout
;
1284 u16 dot11MeshHoldingTimeout
;
1285 u16 dot11MeshMaxPeerLinks
;
1286 u8 dot11MeshMaxRetries
;
1289 bool auto_open_plinks
;
1290 u32 dot11MeshNbrOffsetMaxNeighbor
;
1291 u8 dot11MeshHWMPmaxPREQretries
;
1292 u32 path_refresh_time
;
1293 u16 min_discovery_timeout
;
1294 u32 dot11MeshHWMPactivePathTimeout
;
1295 u16 dot11MeshHWMPpreqMinInterval
;
1296 u16 dot11MeshHWMPperrMinInterval
;
1297 u16 dot11MeshHWMPnetDiameterTraversalTime
;
1298 u8 dot11MeshHWMPRootMode
;
1299 u16 dot11MeshHWMPRannInterval
;
1300 bool dot11MeshGateAnnouncementProtocol
;
1301 bool dot11MeshForwarding
;
1304 u32 dot11MeshHWMPactivePathToRootTimeout
;
1305 u16 dot11MeshHWMProotInterval
;
1306 u16 dot11MeshHWMPconfirmationInterval
;
1307 enum nl80211_mesh_power_mode power_mode
;
1308 u16 dot11MeshAwakeWindowDuration
;
1313 * struct mesh_setup - 802.11s mesh setup configuration
1314 * @chandef: defines the channel to use
1315 * @mesh_id: the mesh ID
1316 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
1317 * @sync_method: which synchronization method to use
1318 * @path_sel_proto: which path selection protocol to use
1319 * @path_metric: which metric to use
1320 * @auth_id: which authentication method this mesh is using
1321 * @ie: vendor information elements (optional)
1322 * @ie_len: length of vendor information elements
1323 * @is_authenticated: this mesh requires authentication
1324 * @is_secure: this mesh uses security
1325 * @user_mpm: userspace handles all MPM functions
1326 * @dtim_period: DTIM period to use
1327 * @beacon_interval: beacon interval to use
1328 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
1329 * @basic_rates: basic rates to use when creating the mesh
1331 * These parameters are fixed when the mesh is created.
1334 struct cfg80211_chan_def chandef
;
1343 bool is_authenticated
;
1347 u16 beacon_interval
;
1348 int mcast_rate
[NUM_NL80211_BANDS
];
1353 * struct ocb_setup - 802.11p OCB mode setup configuration
1354 * @chandef: defines the channel to use
1356 * These parameters are fixed when connecting to the network
1359 struct cfg80211_chan_def chandef
;
1363 * struct ieee80211_txq_params - TX queue parameters
1364 * @ac: AC identifier
1365 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
1366 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
1368 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
1370 * @aifs: Arbitration interframe space [0..255]
1372 struct ieee80211_txq_params
{
1381 * DOC: Scanning and BSS list handling
1383 * The scanning process itself is fairly simple, but cfg80211 offers quite
1384 * a bit of helper functionality. To start a scan, the scan operation will
1385 * be invoked with a scan definition. This scan definition contains the
1386 * channels to scan, and the SSIDs to send probe requests for (including the
1387 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
1388 * probe. Additionally, a scan request may contain extra information elements
1389 * that should be added to the probe request. The IEs are guaranteed to be
1390 * well-formed, and will not exceed the maximum length the driver advertised
1391 * in the wiphy structure.
1393 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
1394 * it is responsible for maintaining the BSS list; the driver should not
1395 * maintain a list itself. For this notification, various functions exist.
1397 * Since drivers do not maintain a BSS list, there are also a number of
1398 * functions to search for a BSS and obtain information about it from the
1399 * BSS structure cfg80211 maintains. The BSS list is also made available
1404 * struct cfg80211_ssid - SSID description
1406 * @ssid_len: length of the ssid
1408 struct cfg80211_ssid
{
1409 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1414 * struct cfg80211_scan_request - scan request description
1416 * @ssids: SSIDs to scan for (active scan only)
1417 * @n_ssids: number of SSIDs
1418 * @channels: channels to scan on.
1419 * @n_channels: total number of channels to scan
1420 * @scan_width: channel width for scanning
1421 * @ie: optional information element(s) to add into Probe Request or %NULL
1422 * @ie_len: length of ie in octets
1423 * @flags: bit field of flags controlling operation
1424 * @rates: bitmap of rates to advertise for each band
1425 * @wiphy: the wiphy this was for
1426 * @scan_start: time (in jiffies) when the scan started
1427 * @wdev: the wireless device to scan for
1428 * @aborted: (internal) scan request was notified as aborted
1429 * @notified: (internal) scan request was notified as done or aborted
1430 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1431 * @mac_addr: MAC address used with randomisation
1432 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1433 * are 0 in the mask should be randomised, bits that are 1 should
1434 * be taken from the @mac_addr
1436 struct cfg80211_scan_request
{
1437 struct cfg80211_ssid
*ssids
;
1440 enum nl80211_bss_scan_width scan_width
;
1445 u32 rates
[NUM_NL80211_BANDS
];
1447 struct wireless_dev
*wdev
;
1449 u8 mac_addr
[ETH_ALEN
] __aligned(2);
1450 u8 mac_addr_mask
[ETH_ALEN
] __aligned(2);
1453 struct wiphy
*wiphy
;
1454 unsigned long scan_start
;
1455 bool aborted
, notified
;
1459 struct ieee80211_channel
*channels
[0];
1462 static inline void get_random_mask_addr(u8
*buf
, const u8
*addr
, const u8
*mask
)
1466 get_random_bytes(buf
, ETH_ALEN
);
1467 for (i
= 0; i
< ETH_ALEN
; i
++) {
1469 buf
[i
] |= addr
[i
] & mask
[i
];
1474 * struct cfg80211_match_set - sets of attributes to match
1476 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
1477 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1479 struct cfg80211_match_set
{
1480 struct cfg80211_ssid ssid
;
1485 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan
1487 * @interval: interval between scheduled scan iterations. In seconds.
1488 * @iterations: number of scan iterations in this scan plan. Zero means
1490 * The last scan plan will always have this parameter set to zero,
1491 * all other scan plans will have a finite number of iterations.
1493 struct cfg80211_sched_scan_plan
{
1499 * struct cfg80211_sched_scan_request - scheduled scan request description
1501 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1502 * @n_ssids: number of SSIDs
1503 * @n_channels: total number of channels to scan
1504 * @scan_width: channel width for scanning
1505 * @ie: optional information element(s) to add into Probe Request or %NULL
1506 * @ie_len: length of ie in octets
1507 * @flags: bit field of flags controlling operation
1508 * @match_sets: sets of parameters to be matched for a scan result
1509 * entry to be considered valid and to be passed to the host
1510 * (others are filtered out).
1511 * If ommited, all results are passed.
1512 * @n_match_sets: number of match sets
1513 * @wiphy: the wiphy this was for
1514 * @dev: the interface
1515 * @scan_start: start time of the scheduled scan
1516 * @channels: channels to scan
1517 * @min_rssi_thold: for drivers only supporting a single threshold, this
1518 * contains the minimum over all matchsets
1519 * @mac_addr: MAC address used with randomisation
1520 * @mac_addr_mask: MAC address mask used with randomisation, bits that
1521 * are 0 in the mask should be randomised, bits that are 1 should
1522 * be taken from the @mac_addr
1523 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest
1524 * index must be executed first.
1525 * @n_scan_plans: number of scan plans, at least 1.
1526 * @rcu_head: RCU callback used to free the struct
1527 * @owner_nlportid: netlink portid of owner (if this should is a request
1528 * owned by a particular socket)
1529 * @delay: delay in seconds to use before starting the first scan
1530 * cycle. The driver may ignore this parameter and start
1531 * immediately (or at any other time), if this feature is not
1534 struct cfg80211_sched_scan_request
{
1535 struct cfg80211_ssid
*ssids
;
1538 enum nl80211_bss_scan_width scan_width
;
1542 struct cfg80211_match_set
*match_sets
;
1546 struct cfg80211_sched_scan_plan
*scan_plans
;
1549 u8 mac_addr
[ETH_ALEN
] __aligned(2);
1550 u8 mac_addr_mask
[ETH_ALEN
] __aligned(2);
1553 struct wiphy
*wiphy
;
1554 struct net_device
*dev
;
1555 unsigned long scan_start
;
1556 struct rcu_head rcu_head
;
1560 struct ieee80211_channel
*channels
[0];
1564 * enum cfg80211_signal_type - signal type
1566 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1567 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1568 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1570 enum cfg80211_signal_type
{
1571 CFG80211_SIGNAL_TYPE_NONE
,
1572 CFG80211_SIGNAL_TYPE_MBM
,
1573 CFG80211_SIGNAL_TYPE_UNSPEC
,
1577 * struct cfg80211_inform_bss - BSS inform data
1578 * @chan: channel the frame was received on
1579 * @scan_width: scan width that was used
1580 * @signal: signal strength value, according to the wiphy's
1582 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was
1583 * received; should match the time when the frame was actually
1584 * received by the device (not just by the host, in case it was
1585 * buffered on the device) and be accurate to about 10ms.
1586 * If the frame isn't buffered, just passing the return value of
1587 * ktime_get_boot_ns() is likely appropriate.
1589 struct cfg80211_inform_bss
{
1590 struct ieee80211_channel
*chan
;
1591 enum nl80211_bss_scan_width scan_width
;
1597 * struct cfg80211_bss_ie_data - BSS entry IE data
1598 * @tsf: TSF contained in the frame that carried these IEs
1599 * @rcu_head: internal use, for freeing
1600 * @len: length of the IEs
1601 * @from_beacon: these IEs are known to come from a beacon
1604 struct cfg80211_bss_ies
{
1606 struct rcu_head rcu_head
;
1613 * struct cfg80211_bss - BSS description
1615 * This structure describes a BSS (which may also be a mesh network)
1616 * for use in scan results and similar.
1618 * @channel: channel this BSS is on
1619 * @scan_width: width of the control channel
1620 * @bssid: BSSID of the BSS
1621 * @beacon_interval: the beacon interval as from the frame
1622 * @capability: the capability field in host byte order
1623 * @ies: the information elements (Note that there is no guarantee that these
1624 * are well-formed!); this is a pointer to either the beacon_ies or
1625 * proberesp_ies depending on whether Probe Response frame has been
1626 * received. It is always non-%NULL.
1627 * @beacon_ies: the information elements from the last Beacon frame
1628 * (implementation note: if @hidden_beacon_bss is set this struct doesn't
1629 * own the beacon_ies, but they're just pointers to the ones from the
1630 * @hidden_beacon_bss struct)
1631 * @proberesp_ies: the information elements from the last Probe Response frame
1632 * @hidden_beacon_bss: in case this BSS struct represents a probe response from
1633 * a BSS that hides the SSID in its beacon, this points to the BSS struct
1634 * that holds the beacon data. @beacon_ies is still valid, of course, and
1635 * points to the same data as hidden_beacon_bss->beacon_ies in that case.
1636 * @signal: signal strength value (type depends on the wiphy's signal_type)
1637 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1639 struct cfg80211_bss
{
1640 struct ieee80211_channel
*channel
;
1641 enum nl80211_bss_scan_width scan_width
;
1643 const struct cfg80211_bss_ies __rcu
*ies
;
1644 const struct cfg80211_bss_ies __rcu
*beacon_ies
;
1645 const struct cfg80211_bss_ies __rcu
*proberesp_ies
;
1647 struct cfg80211_bss
*hidden_beacon_bss
;
1651 u16 beacon_interval
;
1656 u8 priv
[0] __aligned(sizeof(void *));
1660 * ieee80211_bss_get_ie - find IE with given ID
1661 * @bss: the bss to search
1664 * Note that the return value is an RCU-protected pointer, so
1665 * rcu_read_lock() must be held when calling this function.
1666 * Return: %NULL if not found.
1668 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1672 * struct cfg80211_auth_request - Authentication request data
1674 * This structure provides information needed to complete IEEE 802.11
1677 * @bss: The BSS to authenticate with, the callee must obtain a reference
1678 * to it if it needs to keep it.
1679 * @auth_type: Authentication type (algorithm)
1680 * @ie: Extra IEs to add to Authentication frame or %NULL
1681 * @ie_len: Length of ie buffer in octets
1682 * @key_len: length of WEP key for shared key authentication
1683 * @key_idx: index of WEP key for shared key authentication
1684 * @key: WEP key for shared key authentication
1685 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with
1686 * Authentication transaction sequence number field.
1687 * @sae_data_len: Length of sae_data buffer in octets
1689 struct cfg80211_auth_request
{
1690 struct cfg80211_bss
*bss
;
1693 enum nl80211_auth_type auth_type
;
1695 u8 key_len
, key_idx
;
1697 size_t sae_data_len
;
1701 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1703 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1704 * @ASSOC_REQ_DISABLE_VHT: Disable VHT
1705 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
1707 enum cfg80211_assoc_req_flags
{
1708 ASSOC_REQ_DISABLE_HT
= BIT(0),
1709 ASSOC_REQ_DISABLE_VHT
= BIT(1),
1710 ASSOC_REQ_USE_RRM
= BIT(2),
1714 * struct cfg80211_assoc_request - (Re)Association request data
1716 * This structure provides information needed to complete IEEE 802.11
1718 * @bss: The BSS to associate with. If the call is successful the driver is
1719 * given a reference that it must give back to cfg80211_send_rx_assoc()
1720 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
1721 * association requests while already associating must be rejected.
1722 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1723 * @ie_len: Length of ie buffer in octets
1724 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1725 * @crypto: crypto settings
1726 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1727 * @flags: See &enum cfg80211_assoc_req_flags
1728 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1729 * will be used in ht_capa. Un-supported values will be ignored.
1730 * @ht_capa_mask: The bits of ht_capa which are to be used.
1731 * @vht_capa: VHT capability override
1732 * @vht_capa_mask: VHT capability mask indicating which fields to use
1734 struct cfg80211_assoc_request
{
1735 struct cfg80211_bss
*bss
;
1736 const u8
*ie
, *prev_bssid
;
1738 struct cfg80211_crypto_settings crypto
;
1741 struct ieee80211_ht_cap ht_capa
;
1742 struct ieee80211_ht_cap ht_capa_mask
;
1743 struct ieee80211_vht_cap vht_capa
, vht_capa_mask
;
1747 * struct cfg80211_deauth_request - Deauthentication request data
1749 * This structure provides information needed to complete IEEE 802.11
1752 * @bssid: the BSSID of the BSS to deauthenticate from
1753 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1754 * @ie_len: Length of ie buffer in octets
1755 * @reason_code: The reason code for the deauthentication
1756 * @local_state_change: if set, change local state only and
1757 * do not set a deauth frame
1759 struct cfg80211_deauth_request
{
1764 bool local_state_change
;
1768 * struct cfg80211_disassoc_request - Disassociation request data
1770 * This structure provides information needed to complete IEEE 802.11
1773 * @bss: the BSS to disassociate from
1774 * @ie: Extra IEs to add to Disassociation frame or %NULL
1775 * @ie_len: Length of ie buffer in octets
1776 * @reason_code: The reason code for the disassociation
1777 * @local_state_change: This is a request for a local state only, i.e., no
1778 * Disassociation frame is to be transmitted.
1780 struct cfg80211_disassoc_request
{
1781 struct cfg80211_bss
*bss
;
1785 bool local_state_change
;
1789 * struct cfg80211_ibss_params - IBSS parameters
1791 * This structure defines the IBSS parameters for the join_ibss()
1794 * @ssid: The SSID, will always be non-null.
1795 * @ssid_len: The length of the SSID, will always be non-zero.
1796 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1797 * search for IBSSs with a different BSSID.
1798 * @chandef: defines the channel to use if no other IBSS to join can be found
1799 * @channel_fixed: The channel should be fixed -- do not search for
1800 * IBSSs to join on other channels.
1801 * @ie: information element(s) to include in the beacon
1802 * @ie_len: length of that
1803 * @beacon_interval: beacon interval to use
1804 * @privacy: this is a protected network, keys will be configured
1806 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1807 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1808 * required to assume that the port is unauthorized until authorized by
1809 * user space. Otherwise, port is marked authorized by default.
1810 * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
1811 * changes the channel when a radar is detected. This is required
1812 * to operate on DFS channels.
1813 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1814 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1815 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1816 * will be used in ht_capa. Un-supported values will be ignored.
1817 * @ht_capa_mask: The bits of ht_capa which are to be used.
1819 struct cfg80211_ibss_params
{
1822 struct cfg80211_chan_def chandef
;
1824 u8 ssid_len
, ie_len
;
1825 u16 beacon_interval
;
1830 bool userspace_handles_dfs
;
1831 int mcast_rate
[NUM_NL80211_BANDS
];
1832 struct ieee80211_ht_cap ht_capa
;
1833 struct ieee80211_ht_cap ht_capa_mask
;
1837 * struct cfg80211_connect_params - Connection parameters
1839 * This structure provides information needed to complete IEEE 802.11
1840 * authentication and association.
1842 * @channel: The channel to use or %NULL if not specified (auto-select based
1844 * @channel_hint: The channel of the recommended BSS for initial connection or
1845 * %NULL if not specified
1846 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1848 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or
1849 * %NULL if not specified. Unlike the @bssid parameter, the driver is
1850 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS
1853 * @ssid_len: Length of ssid in octets
1854 * @auth_type: Authentication type (algorithm)
1855 * @ie: IEs for association request
1856 * @ie_len: Length of assoc_ie in octets
1857 * @privacy: indicates whether privacy-enabled APs should be used
1858 * @mfp: indicate whether management frame protection is used
1859 * @crypto: crypto settings
1860 * @key_len: length of WEP key for shared key authentication
1861 * @key_idx: index of WEP key for shared key authentication
1862 * @key: WEP key for shared key authentication
1863 * @flags: See &enum cfg80211_assoc_req_flags
1864 * @bg_scan_period: Background scan period in seconds
1865 * or -1 to indicate that default value is to be used.
1866 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1867 * will be used in ht_capa. Un-supported values will be ignored.
1868 * @ht_capa_mask: The bits of ht_capa which are to be used.
1869 * @vht_capa: VHT Capability overrides
1870 * @vht_capa_mask: The bits of vht_capa which are to be used.
1872 struct cfg80211_connect_params
{
1873 struct ieee80211_channel
*channel
;
1874 struct ieee80211_channel
*channel_hint
;
1876 const u8
*bssid_hint
;
1879 enum nl80211_auth_type auth_type
;
1883 enum nl80211_mfp mfp
;
1884 struct cfg80211_crypto_settings crypto
;
1886 u8 key_len
, key_idx
;
1889 struct ieee80211_ht_cap ht_capa
;
1890 struct ieee80211_ht_cap ht_capa_mask
;
1891 struct ieee80211_vht_cap vht_capa
;
1892 struct ieee80211_vht_cap vht_capa_mask
;
1896 * enum wiphy_params_flags - set_wiphy_params bitfield values
1897 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1898 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1899 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1900 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1901 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1902 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
1904 enum wiphy_params_flags
{
1905 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1906 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1907 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1908 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1909 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1910 WIPHY_PARAM_DYN_ACK
= 1 << 5,
1914 * cfg80211_bitrate_mask - masks for bitrate control
1916 struct cfg80211_bitrate_mask
{
1919 u8 ht_mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1920 u16 vht_mcs
[NL80211_VHT_NSS_MAX
];
1921 enum nl80211_txrate_gi gi
;
1922 } control
[NUM_NL80211_BANDS
];
1925 * struct cfg80211_pmksa - PMK Security Association
1927 * This structure is passed to the set/del_pmksa() method for PMKSA
1930 * @bssid: The AP's BSSID.
1931 * @pmkid: The PMK material itself.
1933 struct cfg80211_pmksa
{
1939 * struct cfg80211_pkt_pattern - packet pattern
1940 * @mask: bitmask where to match pattern and where to ignore bytes,
1941 * one bit per byte, in same format as nl80211
1942 * @pattern: bytes to match where bitmask is 1
1943 * @pattern_len: length of pattern (in bytes)
1944 * @pkt_offset: packet offset (in bytes)
1946 * Internal note: @mask and @pattern are allocated in one chunk of
1947 * memory, free @mask only!
1949 struct cfg80211_pkt_pattern
{
1950 const u8
*mask
, *pattern
;
1956 * struct cfg80211_wowlan_tcp - TCP connection parameters
1958 * @sock: (internal) socket for source port allocation
1959 * @src: source IP address
1960 * @dst: destination IP address
1961 * @dst_mac: destination MAC address
1962 * @src_port: source port
1963 * @dst_port: destination port
1964 * @payload_len: data payload length
1965 * @payload: data payload buffer
1966 * @payload_seq: payload sequence stamping configuration
1967 * @data_interval: interval at which to send data packets
1968 * @wake_len: wakeup payload match length
1969 * @wake_data: wakeup payload match data
1970 * @wake_mask: wakeup payload match mask
1971 * @tokens_size: length of the tokens buffer
1972 * @payload_tok: payload token usage configuration
1974 struct cfg80211_wowlan_tcp
{
1975 struct socket
*sock
;
1977 u16 src_port
, dst_port
;
1978 u8 dst_mac
[ETH_ALEN
];
1981 struct nl80211_wowlan_tcp_data_seq payload_seq
;
1984 const u8
*wake_data
, *wake_mask
;
1986 /* must be last, variable member */
1987 struct nl80211_wowlan_tcp_data_token payload_tok
;
1991 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1993 * This structure defines the enabled WoWLAN triggers for the device.
1994 * @any: wake up on any activity -- special trigger if device continues
1995 * operating as normal during suspend
1996 * @disconnect: wake up if getting disconnected
1997 * @magic_pkt: wake up on receiving magic packet
1998 * @patterns: wake up on receiving packet matching a pattern
1999 * @n_patterns: number of patterns
2000 * @gtk_rekey_failure: wake up on GTK rekey failure
2001 * @eap_identity_req: wake up on EAP identity request packet
2002 * @four_way_handshake: wake up on 4-way handshake
2003 * @rfkill_release: wake up when rfkill is released
2004 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
2005 * NULL if not configured.
2006 * @nd_config: configuration for the scan to be used for net detect wake.
2008 struct cfg80211_wowlan
{
2009 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
2010 eap_identity_req
, four_way_handshake
,
2012 struct cfg80211_pkt_pattern
*patterns
;
2013 struct cfg80211_wowlan_tcp
*tcp
;
2015 struct cfg80211_sched_scan_request
*nd_config
;
2019 * struct cfg80211_coalesce_rules - Coalesce rule parameters
2021 * This structure defines coalesce rule for the device.
2022 * @delay: maximum coalescing delay in msecs.
2023 * @condition: condition for packet coalescence.
2024 * see &enum nl80211_coalesce_condition.
2025 * @patterns: array of packet patterns
2026 * @n_patterns: number of patterns
2028 struct cfg80211_coalesce_rules
{
2030 enum nl80211_coalesce_condition condition
;
2031 struct cfg80211_pkt_pattern
*patterns
;
2036 * struct cfg80211_coalesce - Packet coalescing settings
2038 * This structure defines coalescing settings.
2039 * @rules: array of coalesce rules
2040 * @n_rules: number of rules
2042 struct cfg80211_coalesce
{
2043 struct cfg80211_coalesce_rules
*rules
;
2048 * struct cfg80211_wowlan_nd_match - information about the match
2050 * @ssid: SSID of the match that triggered the wake up
2051 * @n_channels: Number of channels where the match occurred. This
2052 * value may be zero if the driver can't report the channels.
2053 * @channels: center frequencies of the channels where a match
2056 struct cfg80211_wowlan_nd_match
{
2057 struct cfg80211_ssid ssid
;
2063 * struct cfg80211_wowlan_nd_info - net detect wake up information
2065 * @n_matches: Number of match information instances provided in
2066 * @matches. This value may be zero if the driver can't provide
2067 * match information.
2068 * @matches: Array of pointers to matches containing information about
2069 * the matches that triggered the wake up.
2071 struct cfg80211_wowlan_nd_info
{
2073 struct cfg80211_wowlan_nd_match
*matches
[];
2077 * struct cfg80211_wowlan_wakeup - wakeup report
2078 * @disconnect: woke up by getting disconnected
2079 * @magic_pkt: woke up by receiving magic packet
2080 * @gtk_rekey_failure: woke up by GTK rekey failure
2081 * @eap_identity_req: woke up by EAP identity request packet
2082 * @four_way_handshake: woke up by 4-way handshake
2083 * @rfkill_release: woke up by rfkill being released
2084 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern
2085 * @packet_present_len: copied wakeup packet data
2086 * @packet_len: original wakeup packet length
2087 * @packet: The packet causing the wakeup, if any.
2088 * @packet_80211: For pattern match, magic packet and other data
2089 * frame triggers an 802.3 frame should be reported, for
2090 * disconnect due to deauth 802.11 frame. This indicates which
2092 * @tcp_match: TCP wakeup packet received
2093 * @tcp_connlost: TCP connection lost or failed to establish
2094 * @tcp_nomoretokens: TCP data ran out of tokens
2095 * @net_detect: if not %NULL, woke up because of net detect
2097 struct cfg80211_wowlan_wakeup
{
2098 bool disconnect
, magic_pkt
, gtk_rekey_failure
,
2099 eap_identity_req
, four_way_handshake
,
2100 rfkill_release
, packet_80211
,
2101 tcp_match
, tcp_connlost
, tcp_nomoretokens
;
2103 u32 packet_present_len
, packet_len
;
2105 struct cfg80211_wowlan_nd_info
*net_detect
;
2109 * struct cfg80211_gtk_rekey_data - rekey data
2110 * @kek: key encryption key (NL80211_KEK_LEN bytes)
2111 * @kck: key confirmation key (NL80211_KCK_LEN bytes)
2112 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
2114 struct cfg80211_gtk_rekey_data
{
2115 const u8
*kek
, *kck
, *replay_ctr
;
2119 * struct cfg80211_update_ft_ies_params - FT IE Information
2121 * This structure provides information needed to update the fast transition IE
2123 * @md: The Mobility Domain ID, 2 Octet value
2124 * @ie: Fast Transition IEs
2125 * @ie_len: Length of ft_ie in octets
2127 struct cfg80211_update_ft_ies_params
{
2134 * struct cfg80211_mgmt_tx_params - mgmt tx parameters
2136 * This structure provides information needed to transmit a mgmt frame
2138 * @chan: channel to use
2139 * @offchan: indicates wether off channel operation is required
2140 * @wait: duration for ROC
2141 * @buf: buffer to transmit
2142 * @len: buffer length
2143 * @no_cck: don't use cck rates for this frame
2144 * @dont_wait_for_ack: tells the low level not to wait for an ack
2145 * @n_csa_offsets: length of csa_offsets array
2146 * @csa_offsets: array of all the csa offsets in the frame
2148 struct cfg80211_mgmt_tx_params
{
2149 struct ieee80211_channel
*chan
;
2155 bool dont_wait_for_ack
;
2157 const u16
*csa_offsets
;
2161 * struct cfg80211_dscp_exception - DSCP exception
2163 * @dscp: DSCP value that does not adhere to the user priority range definition
2164 * @up: user priority value to which the corresponding DSCP value belongs
2166 struct cfg80211_dscp_exception
{
2172 * struct cfg80211_dscp_range - DSCP range definition for user priority
2174 * @low: lowest DSCP value of this user priority range, inclusive
2175 * @high: highest DSCP value of this user priority range, inclusive
2177 struct cfg80211_dscp_range
{
2182 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */
2183 #define IEEE80211_QOS_MAP_MAX_EX 21
2184 #define IEEE80211_QOS_MAP_LEN_MIN 16
2185 #define IEEE80211_QOS_MAP_LEN_MAX \
2186 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX)
2189 * struct cfg80211_qos_map - QoS Map Information
2191 * This struct defines the Interworking QoS map setting for DSCP values
2193 * @num_des: number of DSCP exceptions (0..21)
2194 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from
2195 * the user priority DSCP range definition
2196 * @up: DSCP range definition for a particular user priority
2198 struct cfg80211_qos_map
{
2200 struct cfg80211_dscp_exception dscp_exception
[IEEE80211_QOS_MAP_MAX_EX
];
2201 struct cfg80211_dscp_range up
[8];
2205 * struct cfg80211_ops - backend description for wireless configuration
2207 * This struct is registered by fullmac card drivers and/or wireless stacks
2208 * in order to handle configuration requests on their interfaces.
2210 * All callbacks except where otherwise noted should return 0
2211 * on success or a negative error code.
2213 * All operations are currently invoked under rtnl for consistency with the
2214 * wireless extensions but this is subject to reevaluation as soon as this
2215 * code is used more widely and we have a first user without wext.
2217 * @suspend: wiphy device needs to be suspended. The variable @wow will
2218 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
2219 * configured for the device.
2220 * @resume: wiphy device needs to be resumed
2221 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
2222 * to call device_set_wakeup_enable() to enable/disable wakeup from
2225 * @add_virtual_intf: create a new virtual interface with the given name,
2226 * must set the struct wireless_dev's iftype. Beware: You must create
2227 * the new netdev in the wiphy's network namespace! Returns the struct
2228 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
2229 * also set the address member in the wdev.
2231 * @del_virtual_intf: remove the virtual interface
2233 * @change_virtual_intf: change type/configuration of virtual interface,
2234 * keep the struct wireless_dev's iftype updated.
2236 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
2237 * when adding a group key.
2239 * @get_key: get information about the key with the given parameters.
2240 * @mac_addr will be %NULL when requesting information for a group
2241 * key. All pointers given to the @callback function need not be valid
2242 * after it returns. This function should return an error if it is
2243 * not possible to retrieve the key, -ENOENT if it doesn't exist.
2245 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
2246 * and @key_index, return -ENOENT if the key doesn't exist.
2248 * @set_default_key: set the default key on an interface
2250 * @set_default_mgmt_key: set the default management frame key on an interface
2252 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
2254 * @start_ap: Start acting in AP mode defined by the parameters.
2255 * @change_beacon: Change the beacon parameters for an access point mode
2256 * interface. This should reject the call when AP mode wasn't started.
2257 * @stop_ap: Stop being an AP, including stopping beaconing.
2259 * @add_station: Add a new station.
2260 * @del_station: Remove a station
2261 * @change_station: Modify a given station. Note that flags changes are not much
2262 * validated in cfg80211, in particular the auth/assoc/authorized flags
2263 * might come to the driver in invalid combinations -- make sure to check
2264 * them, also against the existing state! Drivers must call
2265 * cfg80211_check_station_change() to validate the information.
2266 * @get_station: get station information for the station identified by @mac
2267 * @dump_station: dump station callback -- resume dump at index @idx
2269 * @add_mpath: add a fixed mesh path
2270 * @del_mpath: delete a given mesh path
2271 * @change_mpath: change a given mesh path
2272 * @get_mpath: get a mesh path for the given parameters
2273 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
2274 * @get_mpp: get a mesh proxy path for the given parameters
2275 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
2276 * @join_mesh: join the mesh network with the specified parameters
2277 * (invoked with the wireless_dev mutex held)
2278 * @leave_mesh: leave the current mesh network
2279 * (invoked with the wireless_dev mutex held)
2281 * @get_mesh_config: Get the current mesh configuration
2283 * @update_mesh_config: Update mesh parameters on a running mesh.
2284 * The mask is a bitfield which tells us which parameters to
2285 * set, and which to leave alone.
2287 * @change_bss: Modify parameters for a given BSS.
2289 * @set_txq_params: Set TX queue parameters
2291 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
2292 * as it doesn't implement join_mesh and needs to set the channel to
2293 * join the mesh instead.
2295 * @set_monitor_channel: Set the monitor mode channel for the device. If other
2296 * interfaces are active this callback should reject the configuration.
2297 * If no interfaces are active or the device is down, the channel should
2298 * be stored for when a monitor interface becomes active.
2300 * @scan: Request to do a scan. If returning zero, the scan request is given
2301 * the driver, and will be valid until passed to cfg80211_scan_done().
2302 * For scan results, call cfg80211_inform_bss(); you can call this outside
2303 * the scan/scan_done bracket too.
2305 * @auth: Request to authenticate with the specified peer
2306 * (invoked with the wireless_dev mutex held)
2307 * @assoc: Request to (re)associate with the specified peer
2308 * (invoked with the wireless_dev mutex held)
2309 * @deauth: Request to deauthenticate from the specified peer
2310 * (invoked with the wireless_dev mutex held)
2311 * @disassoc: Request to disassociate from the specified peer
2312 * (invoked with the wireless_dev mutex held)
2314 * @connect: Connect to the ESS with the specified parameters. When connected,
2315 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
2316 * If the connection fails for some reason, call cfg80211_connect_result()
2317 * with the status from the AP.
2318 * (invoked with the wireless_dev mutex held)
2319 * @disconnect: Disconnect from the BSS/ESS.
2320 * (invoked with the wireless_dev mutex held)
2322 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
2323 * cfg80211_ibss_joined(), also call that function when changing BSSID due
2325 * (invoked with the wireless_dev mutex held)
2326 * @leave_ibss: Leave the IBSS.
2327 * (invoked with the wireless_dev mutex held)
2329 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
2332 * @set_wiphy_params: Notify that wiphy parameters have changed;
2333 * @changed bitfield (see &enum wiphy_params_flags) describes which values
2334 * have changed. The actual parameter values are available in
2335 * struct wiphy. If returning an error, no value should be changed.
2337 * @set_tx_power: set the transmit power according to the parameters,
2338 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The
2339 * wdev may be %NULL if power was set for the wiphy, and will
2340 * always be %NULL unless the driver supports per-vif TX power
2341 * (as advertised by the nl80211 feature flag.)
2342 * @get_tx_power: store the current TX power into the dbm variable;
2343 * return 0 if successful
2345 * @set_wds_peer: set the WDS peer for a WDS interface
2347 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
2348 * functions to adjust rfkill hw state
2350 * @dump_survey: get site survey information.
2352 * @remain_on_channel: Request the driver to remain awake on the specified
2353 * channel for the specified duration to complete an off-channel
2354 * operation (e.g., public action frame exchange). When the driver is
2355 * ready on the requested channel, it must indicate this with an event
2356 * notification by calling cfg80211_ready_on_channel().
2357 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
2358 * This allows the operation to be terminated prior to timeout based on
2359 * the duration value.
2360 * @mgmt_tx: Transmit a management frame.
2361 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
2362 * frame on another channel
2364 * @testmode_cmd: run a test mode command; @wdev may be %NULL
2365 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
2366 * used by the function, but 0 and 1 must not be touched. Additionally,
2367 * return error codes other than -ENOBUFS and -ENOENT will terminate the
2368 * dump and return to userspace with an error, so be careful. If any data
2369 * was passed in from userspace then the data/len arguments will be present
2370 * and point to the data contained in %NL80211_ATTR_TESTDATA.
2372 * @set_bitrate_mask: set the bitrate mask configuration
2374 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
2375 * devices running firmwares capable of generating the (re) association
2376 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
2377 * @del_pmksa: Delete a cached PMKID.
2378 * @flush_pmksa: Flush all cached PMKIDs.
2379 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
2380 * allows the driver to adjust the dynamic ps timeout value.
2381 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
2382 * After configuration, the driver should (soon) send an event indicating
2383 * the current level is above/below the configured threshold; this may
2384 * need some care when the configuration is changed (without first being
2386 * @set_cqm_txe_config: Configure connection quality monitor TX error
2388 * @sched_scan_start: Tell the driver to start a scheduled scan.
2389 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
2390 * call must stop the scheduled scan and be ready for starting a new one
2391 * before it returns, i.e. @sched_scan_start may be called immediately
2392 * after that again and should not fail in that case. The driver should
2393 * not call cfg80211_sched_scan_stopped() for a requested stop (when this
2394 * method returns 0.)
2396 * @mgmt_frame_register: Notify driver that a management frame type was
2397 * registered. The callback is allowed to sleep.
2399 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
2400 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
2401 * reject TX/RX mask combinations they cannot support by returning -EINVAL
2402 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
2404 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
2406 * @tdls_mgmt: Transmit a TDLS management frame.
2407 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
2409 * @probe_client: probe an associated client, must return a cookie that it
2410 * later passes to cfg80211_probe_status().
2412 * @set_noack_map: Set the NoAck Map for the TIDs.
2414 * @get_channel: Get the current operating channel for the virtual interface.
2415 * For monitor interfaces, it should return %NULL unless there's a single
2416 * current monitoring channel.
2418 * @start_p2p_device: Start the given P2P device.
2419 * @stop_p2p_device: Stop the given P2P device.
2421 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode.
2422 * Parameters include ACL policy, an array of MAC address of stations
2423 * and the number of MAC addresses. If there is already a list in driver
2424 * this new list replaces the existing one. Driver has to clear its ACL
2425 * when number of MAC addresses entries is passed as 0. Drivers which
2426 * advertise the support for MAC based ACL have to implement this callback.
2428 * @start_radar_detection: Start radar detection in the driver.
2430 * @update_ft_ies: Provide updated Fast BSS Transition information to the
2431 * driver. If the SME is in the driver/firmware, this information can be
2432 * used in building Authentication and Reassociation Request frames.
2434 * @crit_proto_start: Indicates a critical protocol needs more link reliability
2435 * for a given duration (milliseconds). The protocol is provided so the
2436 * driver can take the most appropriate actions.
2437 * @crit_proto_stop: Indicates critical protocol no longer needs increased link
2438 * reliability. This operation can not fail.
2439 * @set_coalesce: Set coalesce parameters.
2441 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is
2442 * responsible for veryfing if the switch is possible. Since this is
2443 * inherently tricky driver may decide to disconnect an interface later
2444 * with cfg80211_stop_iface(). This doesn't mean driver can accept
2445 * everything. It should do it's best to verify requests and reject them
2446 * as soon as possible.
2448 * @set_qos_map: Set QoS mapping information to the driver
2450 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
2451 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width
2452 * changes during the lifetime of the BSS.
2454 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
2455 * with the given parameters; action frame exchange has been handled by
2456 * userspace so this just has to modify the TX path to take the TS into
2458 * If the admitted time is 0 just validate the parameters to make sure
2459 * the session can be created at all; it is valid to just always return
2460 * success for that but that may result in inefficient behaviour (handshake
2461 * with the peer followed by immediate teardown when the addition is later
2463 * @del_tx_ts: remove an existing TX TS
2465 * @join_ocb: join the OCB network with the specified parameters
2466 * (invoked with the wireless_dev mutex held)
2467 * @leave_ocb: leave the current OCB network
2468 * (invoked with the wireless_dev mutex held)
2470 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
2471 * is responsible for continually initiating channel-switching operations
2472 * and returning to the base channel for communication with the AP.
2473 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
2474 * peers must be on the base channel when the call completes.
2476 struct cfg80211_ops
{
2477 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
2478 int (*resume
)(struct wiphy
*wiphy
);
2479 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
2481 struct wireless_dev
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
2483 unsigned char name_assign_type
,
2484 enum nl80211_iftype type
,
2486 struct vif_params
*params
);
2487 int (*del_virtual_intf
)(struct wiphy
*wiphy
,
2488 struct wireless_dev
*wdev
);
2489 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
2490 struct net_device
*dev
,
2491 enum nl80211_iftype type
, u32
*flags
,
2492 struct vif_params
*params
);
2494 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2495 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2496 struct key_params
*params
);
2497 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2498 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
2500 void (*callback
)(void *cookie
, struct key_params
*));
2501 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2502 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
2503 int (*set_default_key
)(struct wiphy
*wiphy
,
2504 struct net_device
*netdev
,
2505 u8 key_index
, bool unicast
, bool multicast
);
2506 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
2507 struct net_device
*netdev
,
2510 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2511 struct cfg80211_ap_settings
*settings
);
2512 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2513 struct cfg80211_beacon_data
*info
);
2514 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2517 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2519 struct station_parameters
*params
);
2520 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2521 struct station_del_parameters
*params
);
2522 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2524 struct station_parameters
*params
);
2525 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2526 const u8
*mac
, struct station_info
*sinfo
);
2527 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2528 int idx
, u8
*mac
, struct station_info
*sinfo
);
2530 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2531 const u8
*dst
, const u8
*next_hop
);
2532 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2534 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2535 const u8
*dst
, const u8
*next_hop
);
2536 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2537 u8
*dst
, u8
*next_hop
, struct mpath_info
*pinfo
);
2538 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2539 int idx
, u8
*dst
, u8
*next_hop
,
2540 struct mpath_info
*pinfo
);
2541 int (*get_mpp
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2542 u8
*dst
, u8
*mpp
, struct mpath_info
*pinfo
);
2543 int (*dump_mpp
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2544 int idx
, u8
*dst
, u8
*mpp
,
2545 struct mpath_info
*pinfo
);
2546 int (*get_mesh_config
)(struct wiphy
*wiphy
,
2547 struct net_device
*dev
,
2548 struct mesh_config
*conf
);
2549 int (*update_mesh_config
)(struct wiphy
*wiphy
,
2550 struct net_device
*dev
, u32 mask
,
2551 const struct mesh_config
*nconf
);
2552 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2553 const struct mesh_config
*conf
,
2554 const struct mesh_setup
*setup
);
2555 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2557 int (*join_ocb
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2558 struct ocb_setup
*setup
);
2559 int (*leave_ocb
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2561 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2562 struct bss_parameters
*params
);
2564 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2565 struct ieee80211_txq_params
*params
);
2567 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
2568 struct net_device
*dev
,
2569 struct ieee80211_channel
*chan
);
2571 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
2572 struct cfg80211_chan_def
*chandef
);
2574 int (*scan
)(struct wiphy
*wiphy
,
2575 struct cfg80211_scan_request
*request
);
2577 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2578 struct cfg80211_auth_request
*req
);
2579 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2580 struct cfg80211_assoc_request
*req
);
2581 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2582 struct cfg80211_deauth_request
*req
);
2583 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2584 struct cfg80211_disassoc_request
*req
);
2586 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2587 struct cfg80211_connect_params
*sme
);
2588 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2591 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2592 struct cfg80211_ibss_params
*params
);
2593 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2595 int (*set_mcast_rate
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2596 int rate
[NUM_NL80211_BANDS
]);
2598 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
2600 int (*set_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2601 enum nl80211_tx_power_setting type
, int mbm
);
2602 int (*get_tx_power
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2605 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2608 void (*rfkill_poll
)(struct wiphy
*wiphy
);
2610 #ifdef CONFIG_NL80211_TESTMODE
2611 int (*testmode_cmd
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2612 void *data
, int len
);
2613 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
2614 struct netlink_callback
*cb
,
2615 void *data
, int len
);
2618 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
2619 struct net_device
*dev
,
2621 const struct cfg80211_bitrate_mask
*mask
);
2623 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2624 int idx
, struct survey_info
*info
);
2626 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2627 struct cfg80211_pmksa
*pmksa
);
2628 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
2629 struct cfg80211_pmksa
*pmksa
);
2630 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
2632 int (*remain_on_channel
)(struct wiphy
*wiphy
,
2633 struct wireless_dev
*wdev
,
2634 struct ieee80211_channel
*chan
,
2635 unsigned int duration
,
2637 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
2638 struct wireless_dev
*wdev
,
2641 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
2642 struct cfg80211_mgmt_tx_params
*params
,
2644 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
2645 struct wireless_dev
*wdev
,
2648 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2649 bool enabled
, int timeout
);
2651 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
2652 struct net_device
*dev
,
2653 s32 rssi_thold
, u32 rssi_hyst
);
2655 int (*set_cqm_txe_config
)(struct wiphy
*wiphy
,
2656 struct net_device
*dev
,
2657 u32 rate
, u32 pkts
, u32 intvl
);
2659 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
2660 struct wireless_dev
*wdev
,
2661 u16 frame_type
, bool reg
);
2663 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
2664 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
2666 int (*sched_scan_start
)(struct wiphy
*wiphy
,
2667 struct net_device
*dev
,
2668 struct cfg80211_sched_scan_request
*request
);
2669 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
2671 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2672 struct cfg80211_gtk_rekey_data
*data
);
2674 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2675 const u8
*peer
, u8 action_code
, u8 dialog_token
,
2676 u16 status_code
, u32 peer_capability
,
2677 bool initiator
, const u8
*buf
, size_t len
);
2678 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2679 const u8
*peer
, enum nl80211_tdls_operation oper
);
2681 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2682 const u8
*peer
, u64
*cookie
);
2684 int (*set_noack_map
)(struct wiphy
*wiphy
,
2685 struct net_device
*dev
,
2688 int (*get_channel
)(struct wiphy
*wiphy
,
2689 struct wireless_dev
*wdev
,
2690 struct cfg80211_chan_def
*chandef
);
2692 int (*start_p2p_device
)(struct wiphy
*wiphy
,
2693 struct wireless_dev
*wdev
);
2694 void (*stop_p2p_device
)(struct wiphy
*wiphy
,
2695 struct wireless_dev
*wdev
);
2697 int (*set_mac_acl
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2698 const struct cfg80211_acl_data
*params
);
2700 int (*start_radar_detection
)(struct wiphy
*wiphy
,
2701 struct net_device
*dev
,
2702 struct cfg80211_chan_def
*chandef
,
2704 int (*update_ft_ies
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2705 struct cfg80211_update_ft_ies_params
*ftie
);
2706 int (*crit_proto_start
)(struct wiphy
*wiphy
,
2707 struct wireless_dev
*wdev
,
2708 enum nl80211_crit_proto_id protocol
,
2710 void (*crit_proto_stop
)(struct wiphy
*wiphy
,
2711 struct wireless_dev
*wdev
);
2712 int (*set_coalesce
)(struct wiphy
*wiphy
,
2713 struct cfg80211_coalesce
*coalesce
);
2715 int (*channel_switch
)(struct wiphy
*wiphy
,
2716 struct net_device
*dev
,
2717 struct cfg80211_csa_settings
*params
);
2719 int (*set_qos_map
)(struct wiphy
*wiphy
,
2720 struct net_device
*dev
,
2721 struct cfg80211_qos_map
*qos_map
);
2723 int (*set_ap_chanwidth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2724 struct cfg80211_chan_def
*chandef
);
2726 int (*add_tx_ts
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2727 u8 tsid
, const u8
*peer
, u8 user_prio
,
2729 int (*del_tx_ts
)(struct wiphy
*wiphy
, struct net_device
*dev
,
2730 u8 tsid
, const u8
*peer
);
2732 int (*tdls_channel_switch
)(struct wiphy
*wiphy
,
2733 struct net_device
*dev
,
2734 const u8
*addr
, u8 oper_class
,
2735 struct cfg80211_chan_def
*chandef
);
2736 void (*tdls_cancel_channel_switch
)(struct wiphy
*wiphy
,
2737 struct net_device
*dev
,
2742 * wireless hardware and networking interfaces structures
2743 * and registration/helper functions
2747 * enum wiphy_flags - wiphy capability flags
2749 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
2751 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
2752 * by default -- this flag will be set depending on the kernel's default
2753 * on wiphy_new(), but can be changed by the driver if it has a good
2754 * reason to override the default
2755 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
2756 * on a VLAN interface)
2757 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
2758 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
2759 * control port protocol ethertype. The device also honours the
2760 * control_port_no_encrypt flag.
2761 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
2762 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
2763 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
2764 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
2765 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
2767 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
2768 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
2769 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
2770 * link setup/discovery operations internally. Setup, discovery and
2771 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
2772 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
2773 * used for asking the driver/firmware to perform a TDLS operation.
2774 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
2775 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
2776 * when there are virtual interfaces in AP mode by calling
2777 * cfg80211_report_obss_beacon().
2778 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
2779 * responds to probe-requests in hardware.
2780 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
2781 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
2782 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
2783 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
2784 * beaconing mode (AP, IBSS, Mesh, ...).
2790 WIPHY_FLAG_NETNS_OK
= BIT(3),
2791 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
2792 WIPHY_FLAG_4ADDR_AP
= BIT(5),
2793 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
2794 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
2795 WIPHY_FLAG_IBSS_RSN
= BIT(8),
2796 WIPHY_FLAG_MESH_AUTH
= BIT(10),
2797 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
2798 /* use hole at 12 */
2799 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
2800 WIPHY_FLAG_AP_UAPSD
= BIT(14),
2801 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
2802 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
2803 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
2804 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
2805 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
2806 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
2807 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
2808 WIPHY_FLAG_SUPPORTS_5_10_MHZ
= BIT(22),
2809 WIPHY_FLAG_HAS_CHANNEL_SWITCH
= BIT(23),
2813 * struct ieee80211_iface_limit - limit on certain interface types
2814 * @max: maximum number of interfaces of these types
2815 * @types: interface types (bits)
2817 struct ieee80211_iface_limit
{
2823 * struct ieee80211_iface_combination - possible interface combination
2824 * @limits: limits for the given interface types
2825 * @n_limits: number of limitations
2826 * @num_different_channels: can use up to this many different channels
2827 * @max_interfaces: maximum number of interfaces in total allowed in this
2829 * @beacon_int_infra_match: In this combination, the beacon intervals
2830 * between infrastructure and AP types must match. This is required
2831 * only in special cases.
2832 * @radar_detect_widths: bitmap of channel widths supported for radar detection
2833 * @radar_detect_regions: bitmap of regions supported for radar detection
2835 * With this structure the driver can describe which interface
2836 * combinations it supports concurrently.
2840 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
2842 * struct ieee80211_iface_limit limits1[] = {
2843 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2844 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
2846 * struct ieee80211_iface_combination combination1 = {
2847 * .limits = limits1,
2848 * .n_limits = ARRAY_SIZE(limits1),
2849 * .max_interfaces = 2,
2850 * .beacon_int_infra_match = true,
2854 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
2856 * struct ieee80211_iface_limit limits2[] = {
2857 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
2858 * BIT(NL80211_IFTYPE_P2P_GO), },
2860 * struct ieee80211_iface_combination combination2 = {
2861 * .limits = limits2,
2862 * .n_limits = ARRAY_SIZE(limits2),
2863 * .max_interfaces = 8,
2864 * .num_different_channels = 1,
2868 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
2870 * This allows for an infrastructure connection and three P2P connections.
2872 * struct ieee80211_iface_limit limits3[] = {
2873 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
2874 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
2875 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
2877 * struct ieee80211_iface_combination combination3 = {
2878 * .limits = limits3,
2879 * .n_limits = ARRAY_SIZE(limits3),
2880 * .max_interfaces = 4,
2881 * .num_different_channels = 2,
2884 struct ieee80211_iface_combination
{
2885 const struct ieee80211_iface_limit
*limits
;
2886 u32 num_different_channels
;
2889 bool beacon_int_infra_match
;
2890 u8 radar_detect_widths
;
2891 u8 radar_detect_regions
;
2894 struct ieee80211_txrx_stypes
{
2899 * enum wiphy_wowlan_support_flags - WoWLAN support flags
2900 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
2901 * trigger that keeps the device operating as-is and
2902 * wakes up the host on any activity, for example a
2903 * received packet that passed filtering; note that the
2904 * packet should be preserved in that case
2905 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2907 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2908 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2909 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2910 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2911 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2912 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2913 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
2915 enum wiphy_wowlan_support_flags
{
2916 WIPHY_WOWLAN_ANY
= BIT(0),
2917 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
2918 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
2919 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
2920 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
2921 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
2922 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
2923 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2924 WIPHY_WOWLAN_NET_DETECT
= BIT(8),
2927 struct wiphy_wowlan_tcp_support
{
2928 const struct nl80211_wowlan_tcp_data_token_feature
*tok
;
2929 u32 data_payload_max
;
2930 u32 data_interval_max
;
2931 u32 wake_payload_max
;
2936 * struct wiphy_wowlan_support - WoWLAN support data
2937 * @flags: see &enum wiphy_wowlan_support_flags
2938 * @n_patterns: number of supported wakeup patterns
2939 * (see nl80211.h for the pattern definition)
2940 * @pattern_max_len: maximum length of each pattern
2941 * @pattern_min_len: minimum length of each pattern
2942 * @max_pkt_offset: maximum Rx packet offset
2943 * @max_nd_match_sets: maximum number of matchsets for net-detect,
2944 * similar, but not necessarily identical, to max_match_sets for
2946 * See &struct cfg80211_sched_scan_request.@match_sets for more
2948 * @tcp: TCP wakeup support information
2950 struct wiphy_wowlan_support
{
2953 int pattern_max_len
;
2954 int pattern_min_len
;
2956 int max_nd_match_sets
;
2957 const struct wiphy_wowlan_tcp_support
*tcp
;
2961 * struct wiphy_coalesce_support - coalesce support data
2962 * @n_rules: maximum number of coalesce rules
2963 * @max_delay: maximum supported coalescing delay in msecs
2964 * @n_patterns: number of supported patterns in a rule
2965 * (see nl80211.h for the pattern definition)
2966 * @pattern_max_len: maximum length of each pattern
2967 * @pattern_min_len: minimum length of each pattern
2968 * @max_pkt_offset: maximum Rx packet offset
2970 struct wiphy_coalesce_support
{
2974 int pattern_max_len
;
2975 int pattern_min_len
;
2980 * enum wiphy_vendor_command_flags - validation flags for vendor commands
2981 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev
2982 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev
2983 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running
2984 * (must be combined with %_WDEV or %_NETDEV)
2986 enum wiphy_vendor_command_flags
{
2987 WIPHY_VENDOR_CMD_NEED_WDEV
= BIT(0),
2988 WIPHY_VENDOR_CMD_NEED_NETDEV
= BIT(1),
2989 WIPHY_VENDOR_CMD_NEED_RUNNING
= BIT(2),
2993 * struct wiphy_vendor_command - vendor command definition
2994 * @info: vendor command identifying information, as used in nl80211
2995 * @flags: flags, see &enum wiphy_vendor_command_flags
2996 * @doit: callback for the operation, note that wdev is %NULL if the
2997 * flags didn't ask for a wdev and non-%NULL otherwise; the data
2998 * pointer may be %NULL if userspace provided no data at all
2999 * @dumpit: dump callback, for transferring bigger/multiple items. The
3000 * @storage points to cb->args[5], ie. is preserved over the multiple
3002 * It's recommended to not have the same sub command with both @doit and
3003 * @dumpit, so that userspace can assume certain ones are get and others
3004 * are used with dump requests.
3006 struct wiphy_vendor_command
{
3007 struct nl80211_vendor_cmd_info info
;
3009 int (*doit
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
3010 const void *data
, int data_len
);
3011 int (*dumpit
)(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
3012 struct sk_buff
*skb
, const void *data
, int data_len
,
3013 unsigned long *storage
);
3017 * struct wiphy - wireless hardware description
3018 * @reg_notifier: the driver's regulatory notification callback,
3019 * note that if your driver uses wiphy_apply_custom_regulatory()
3020 * the reg_notifier's request can be passed as NULL
3021 * @regd: the driver's regulatory domain, if one was requested via
3022 * the regulatory_hint() API. This can be used by the driver
3023 * on the reg_notifier() if it chooses to ignore future
3024 * regulatory domain changes caused by other drivers.
3025 * @signal_type: signal type reported in &struct cfg80211_bss.
3026 * @cipher_suites: supported cipher suites
3027 * @n_cipher_suites: number of supported cipher suites
3028 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
3029 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
3030 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
3031 * -1 = fragmentation disabled, only odd values >= 256 used
3032 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
3033 * @_net: the network namespace this wiphy currently lives in
3034 * @perm_addr: permanent MAC address of this device
3035 * @addr_mask: If the device supports multiple MAC addresses by masking,
3036 * set this to a mask with variable bits set to 1, e.g. if the last
3037 * four bits are variable then set it to 00-00-00-00-00-0f. The actual
3038 * variable bits shall be determined by the interfaces added, with
3039 * interfaces not matching the mask being rejected to be brought up.
3040 * @n_addresses: number of addresses in @addresses.
3041 * @addresses: If the device has more than one address, set this pointer
3042 * to a list of addresses (6 bytes each). The first one will be used
3043 * by default for perm_addr. In this case, the mask should be set to
3044 * all-zeroes. In this case it is assumed that the device can handle
3045 * the same number of arbitrary MAC addresses.
3046 * @registered: protects ->resume and ->suspend sysfs callbacks against
3047 * unregister hardware
3048 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
3049 * automatically on wiphy renames
3050 * @dev: (virtual) struct device for this wiphy
3051 * @registered: helps synchronize suspend/resume with wiphy unregister
3052 * @wext: wireless extension handlers
3053 * @priv: driver private data (sized according to wiphy_new() parameter)
3054 * @interface_modes: bitmask of interfaces types valid for this wiphy,
3055 * must be set by driver
3056 * @iface_combinations: Valid interface combinations array, should not
3057 * list single interface types.
3058 * @n_iface_combinations: number of entries in @iface_combinations array.
3059 * @software_iftypes: bitmask of software interface types, these are not
3060 * subject to any restrictions since they are purely managed in SW.
3061 * @flags: wiphy flags, see &enum wiphy_flags
3062 * @regulatory_flags: wiphy regulatory flags, see
3063 * &enum ieee80211_regulatory_flags
3064 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
3065 * @ext_features: extended features advertised to nl80211, see
3066 * &enum nl80211_ext_feature_index.
3067 * @bss_priv_size: each BSS struct has private data allocated with it,
3068 * this variable determines its size
3069 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
3071 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
3072 * for in any given scheduled scan
3073 * @max_match_sets: maximum number of match sets the device can handle
3074 * when performing a scheduled scan, 0 if filtering is not
3076 * @max_scan_ie_len: maximum length of user-controlled IEs device can
3077 * add to probe request frames transmitted during a scan, must not
3078 * include fixed IEs like supported rates
3079 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
3081 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number
3082 * of iterations) for scheduled scan supported by the device.
3083 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a
3084 * single scan plan supported by the device.
3085 * @max_sched_scan_plan_iterations: maximum number of iterations for a single
3086 * scan plan supported by the device.
3087 * @coverage_class: current coverage class
3088 * @fw_version: firmware version for ethtool reporting
3089 * @hw_version: hardware version for ethtool reporting
3090 * @max_num_pmkids: maximum number of PMKIDs supported by device
3091 * @privid: a pointer that drivers can use to identify if an arbitrary
3092 * wiphy is theirs, e.g. in global notifiers
3093 * @bands: information about bands/channels supported by this device
3095 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
3096 * transmitted through nl80211, points to an array indexed by interface
3099 * @available_antennas_tx: bitmap of antennas which are available to be
3100 * configured as TX antennas. Antenna configuration commands will be
3101 * rejected unless this or @available_antennas_rx is set.
3103 * @available_antennas_rx: bitmap of antennas which are available to be
3104 * configured as RX antennas. Antenna configuration commands will be
3105 * rejected unless this or @available_antennas_tx is set.
3107 * @probe_resp_offload:
3108 * Bitmap of supported protocols for probe response offloading.
3109 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
3110 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3112 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
3113 * may request, if implemented.
3115 * @wowlan: WoWLAN support information
3116 * @wowlan_config: current WoWLAN configuration; this should usually not be
3117 * used since access to it is necessarily racy, use the parameter passed
3118 * to the suspend() operation instead.
3120 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
3121 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
3122 * If null, then none can be over-ridden.
3123 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden.
3124 * If null, then none can be over-ridden.
3126 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
3129 * @extended_capabilities: extended capabilities supported by the driver,
3130 * additional capabilities might be supported by userspace; these are
3131 * the 802.11 extended capabilities ("Extended Capabilities element")
3132 * and are in the same format as in the information element. See
3133 * 802.11-2012 8.4.2.29 for the defined fields.
3134 * @extended_capabilities_mask: mask of the valid values
3135 * @extended_capabilities_len: length of the extended capabilities
3136 * @coalesce: packet coalescing support information
3138 * @vendor_commands: array of vendor commands supported by the hardware
3139 * @n_vendor_commands: number of vendor commands
3140 * @vendor_events: array of vendor events supported by the hardware
3141 * @n_vendor_events: number of vendor events
3143 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode
3144 * (including P2P GO) or 0 to indicate no such limit is advertised. The
3145 * driver is allowed to advertise a theoretical limit that it can reach in
3146 * some cases, but may not always reach.
3148 * @max_num_csa_counters: Number of supported csa_counters in beacons
3149 * and probe responses. This value should be set if the driver
3150 * wishes to limit the number of csa counters. Default (0) means
3152 * @max_adj_channel_rssi_comp: max offset of between the channel on which the
3153 * frame was sent and the channel on which the frame was heard for which
3154 * the reported rssi is still valid. If a driver is able to compensate the
3155 * low rssi when a frame is heard on different channel, then it should set
3156 * this variable to the maximal offset for which it can compensate.
3157 * This value should be set in MHz.
3160 /* assign these fields before you register the wiphy */
3162 /* permanent MAC address(es) */
3163 u8 perm_addr
[ETH_ALEN
];
3164 u8 addr_mask
[ETH_ALEN
];
3166 struct mac_address
*addresses
;
3168 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
3170 const struct ieee80211_iface_combination
*iface_combinations
;
3171 int n_iface_combinations
;
3172 u16 software_iftypes
;
3176 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
3177 u16 interface_modes
;
3179 u16 max_acl_mac_addrs
;
3181 u32 flags
, regulatory_flags
, features
;
3182 u8 ext_features
[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES
, 8)];
3186 enum cfg80211_signal_type signal_type
;
3190 u8 max_sched_scan_ssids
;
3192 u16 max_scan_ie_len
;
3193 u16 max_sched_scan_ie_len
;
3194 u32 max_sched_scan_plans
;
3195 u32 max_sched_scan_plan_interval
;
3196 u32 max_sched_scan_plan_iterations
;
3198 int n_cipher_suites
;
3199 const u32
*cipher_suites
;
3207 char fw_version
[ETHTOOL_FWVERS_LEN
];
3211 const struct wiphy_wowlan_support
*wowlan
;
3212 struct cfg80211_wowlan
*wowlan_config
;
3215 u16 max_remain_on_channel_duration
;
3219 u32 available_antennas_tx
;
3220 u32 available_antennas_rx
;
3223 * Bitmap of supported protocols for probe response offloading
3224 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
3225 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
3227 u32 probe_resp_offload
;
3229 const u8
*extended_capabilities
, *extended_capabilities_mask
;
3230 u8 extended_capabilities_len
;
3232 /* If multiple wiphys are registered and you're handed e.g.
3233 * a regular netdev with assigned ieee80211_ptr, you won't
3234 * know whether it points to a wiphy your driver has registered
3235 * or not. Assign this to something global to your driver to
3236 * help determine whether you own this wiphy or not. */
3239 struct ieee80211_supported_band
*bands
[NUM_NL80211_BANDS
];
3241 /* Lets us get back the wiphy on the callback */
3242 void (*reg_notifier
)(struct wiphy
*wiphy
,
3243 struct regulatory_request
*request
);
3245 /* fields below are read-only, assigned by cfg80211 */
3247 const struct ieee80211_regdomain __rcu
*regd
;
3249 /* the item in /sys/class/ieee80211/ points to this,
3250 * you need use set_wiphy_dev() (see below) */
3253 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
3256 /* dir in debugfs: ieee80211/<wiphyname> */
3257 struct dentry
*debugfsdir
;
3259 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
3260 const struct ieee80211_vht_cap
*vht_capa_mod_mask
;
3262 /* the network namespace this phy lives in currently */
3263 possible_net_t _net
;
3265 #ifdef CONFIG_CFG80211_WEXT
3266 const struct iw_handler_def
*wext
;
3269 const struct wiphy_coalesce_support
*coalesce
;
3271 const struct wiphy_vendor_command
*vendor_commands
;
3272 const struct nl80211_vendor_cmd_info
*vendor_events
;
3273 int n_vendor_commands
, n_vendor_events
;
3275 u16 max_ap_assoc_sta
;
3277 u8 max_num_csa_counters
;
3278 u8 max_adj_channel_rssi_comp
;
3280 char priv
[0] __aligned(NETDEV_ALIGN
);
3283 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
3285 return read_pnet(&wiphy
->_net
);
3288 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
3290 write_pnet(&wiphy
->_net
, net
);
3294 * wiphy_priv - return priv from wiphy
3296 * @wiphy: the wiphy whose priv pointer to return
3297 * Return: The priv of @wiphy.
3299 static inline void *wiphy_priv(struct wiphy
*wiphy
)
3302 return &wiphy
->priv
;
3306 * priv_to_wiphy - return the wiphy containing the priv
3308 * @priv: a pointer previously returned by wiphy_priv
3309 * Return: The wiphy of @priv.
3311 static inline struct wiphy
*priv_to_wiphy(void *priv
)
3314 return container_of(priv
, struct wiphy
, priv
);
3318 * set_wiphy_dev - set device pointer for wiphy
3320 * @wiphy: The wiphy whose device to bind
3321 * @dev: The device to parent it to
3323 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
3325 wiphy
->dev
.parent
= dev
;
3329 * wiphy_dev - get wiphy dev pointer
3331 * @wiphy: The wiphy whose device struct to look up
3332 * Return: The dev of @wiphy.
3334 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
3336 return wiphy
->dev
.parent
;
3340 * wiphy_name - get wiphy name
3342 * @wiphy: The wiphy whose name to return
3343 * Return: The name of @wiphy.
3345 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
3347 return dev_name(&wiphy
->dev
);
3351 * wiphy_new_nm - create a new wiphy for use with cfg80211
3353 * @ops: The configuration operations for this device
3354 * @sizeof_priv: The size of the private area to allocate
3355 * @requested_name: Request a particular name.
3356 * NULL is valid value, and means use the default phy%d naming.
3358 * Create a new wiphy and associate the given operations with it.
3359 * @sizeof_priv bytes are allocated for private use.
3361 * Return: A pointer to the new wiphy. This pointer must be
3362 * assigned to each netdev's ieee80211_ptr for proper operation.
3364 struct wiphy
*wiphy_new_nm(const struct cfg80211_ops
*ops
, int sizeof_priv
,
3365 const char *requested_name
);
3368 * wiphy_new - create a new wiphy for use with cfg80211
3370 * @ops: The configuration operations for this device
3371 * @sizeof_priv: The size of the private area to allocate
3373 * Create a new wiphy and associate the given operations with it.
3374 * @sizeof_priv bytes are allocated for private use.
3376 * Return: A pointer to the new wiphy. This pointer must be
3377 * assigned to each netdev's ieee80211_ptr for proper operation.
3379 static inline struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
,
3382 return wiphy_new_nm(ops
, sizeof_priv
, NULL
);
3386 * wiphy_register - register a wiphy with cfg80211
3388 * @wiphy: The wiphy to register.
3390 * Return: A non-negative wiphy index or a negative error code.
3392 int wiphy_register(struct wiphy
*wiphy
);
3395 * wiphy_unregister - deregister a wiphy from cfg80211
3397 * @wiphy: The wiphy to unregister.
3399 * After this call, no more requests can be made with this priv
3400 * pointer, but the call may sleep to wait for an outstanding
3401 * request that is being handled.
3403 void wiphy_unregister(struct wiphy
*wiphy
);
3406 * wiphy_free - free wiphy
3408 * @wiphy: The wiphy to free
3410 void wiphy_free(struct wiphy
*wiphy
);
3412 /* internal structs */
3413 struct cfg80211_conn
;
3414 struct cfg80211_internal_bss
;
3415 struct cfg80211_cached_keys
;
3418 * struct wireless_dev - wireless device state
3420 * For netdevs, this structure must be allocated by the driver
3421 * that uses the ieee80211_ptr field in struct net_device (this
3422 * is intentional so it can be allocated along with the netdev.)
3423 * It need not be registered then as netdev registration will
3424 * be intercepted by cfg80211 to see the new wireless device.
3426 * For non-netdev uses, it must also be allocated by the driver
3427 * in response to the cfg80211 callbacks that require it, as
3428 * there's no netdev registration in that case it may not be
3429 * allocated outside of callback operations that return it.
3431 * @wiphy: pointer to hardware description
3432 * @iftype: interface type
3433 * @list: (private) Used to collect the interfaces
3434 * @netdev: (private) Used to reference back to the netdev, may be %NULL
3435 * @identifier: (private) Identifier used in nl80211 to identify this
3436 * wireless device if it has no netdev
3437 * @current_bss: (private) Used by the internal configuration code
3438 * @chandef: (private) Used by the internal configuration code to track
3439 * the user-set channel definition.
3440 * @preset_chandef: (private) Used by the internal configuration code to
3441 * track the channel to be used for AP later
3442 * @bssid: (private) Used by the internal configuration code
3443 * @ssid: (private) Used by the internal configuration code
3444 * @ssid_len: (private) Used by the internal configuration code
3445 * @mesh_id_len: (private) Used by the internal configuration code
3446 * @mesh_id_up_len: (private) Used by the internal configuration code
3447 * @wext: (private) Used by the internal wireless extensions compat code
3448 * @use_4addr: indicates 4addr mode is used on this interface, must be
3449 * set by driver (if supported) on add_interface BEFORE registering the
3450 * netdev and may otherwise be used by driver read-only, will be update
3451 * by cfg80211 on change_interface
3452 * @mgmt_registrations: list of registrations for management frames
3453 * @mgmt_registrations_lock: lock for the list
3454 * @mtx: mutex used to lock data in this struct, may be used by drivers
3455 * and some API functions require it held
3456 * @beacon_interval: beacon interval used on this device for transmitting
3457 * beacons, 0 when not valid
3458 * @address: The address for this device, valid only if @netdev is %NULL
3459 * @p2p_started: true if this is a P2P Device that has been started
3460 * @cac_started: true if DFS channel availability check has been started
3461 * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
3462 * @cac_time_ms: CAC time in ms
3463 * @ps: powersave mode is enabled
3464 * @ps_timeout: dynamic powersave timeout
3465 * @ap_unexpected_nlportid: (private) netlink port ID of application
3466 * registered for unexpected class 3 frames (AP mode)
3467 * @conn: (private) cfg80211 software SME connection state machine data
3468 * @connect_keys: (private) keys to set after connection is established
3469 * @ibss_fixed: (private) IBSS is using fixed BSSID
3470 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
3471 * @event_list: (private) list for internal event processing
3472 * @event_lock: (private) lock for event list
3473 * @owner_nlportid: (private) owner socket port ID
3475 struct wireless_dev
{
3476 struct wiphy
*wiphy
;
3477 enum nl80211_iftype iftype
;
3479 /* the remainder of this struct should be private to cfg80211 */
3480 struct list_head list
;
3481 struct net_device
*netdev
;
3485 struct list_head mgmt_registrations
;
3486 spinlock_t mgmt_registrations_lock
;
3490 bool use_4addr
, p2p_started
;
3492 u8 address
[ETH_ALEN
] __aligned(sizeof(u16
));
3494 /* currently used for IBSS and SME - might be rearranged later */
3495 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3496 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
3497 struct cfg80211_conn
*conn
;
3498 struct cfg80211_cached_keys
*connect_keys
;
3500 struct list_head event_list
;
3501 spinlock_t event_lock
;
3503 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
3504 struct cfg80211_chan_def preset_chandef
;
3505 struct cfg80211_chan_def chandef
;
3508 bool ibss_dfs_possible
;
3513 int beacon_interval
;
3515 u32 ap_unexpected_nlportid
;
3518 unsigned long cac_start_time
;
3519 unsigned int cac_time_ms
;
3523 #ifdef CONFIG_CFG80211_WEXT
3526 struct cfg80211_ibss_params ibss
;
3527 struct cfg80211_connect_params connect
;
3528 struct cfg80211_cached_keys
*keys
;
3531 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
3532 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
3533 s8 default_key
, default_mgmt_key
;
3534 bool prev_bssid_valid
;
3539 static inline u8
*wdev_address(struct wireless_dev
*wdev
)
3542 return wdev
->netdev
->dev_addr
;
3543 return wdev
->address
;
3547 * wdev_priv - return wiphy priv from wireless_dev
3549 * @wdev: The wireless device whose wiphy's priv pointer to return
3550 * Return: The wiphy priv of @wdev.
3552 static inline void *wdev_priv(struct wireless_dev
*wdev
)
3555 return wiphy_priv(wdev
->wiphy
);
3559 * DOC: Utility functions
3561 * cfg80211 offers a number of utility functions that can be useful.
3565 * ieee80211_channel_to_frequency - convert channel number to frequency
3566 * @chan: channel number
3567 * @band: band, necessary due to channel number overlap
3568 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
3570 int ieee80211_channel_to_frequency(int chan
, enum nl80211_band band
);
3573 * ieee80211_frequency_to_channel - convert frequency to channel number
3574 * @freq: center frequency
3575 * Return: The corresponding channel, or 0 if the conversion failed.
3577 int ieee80211_frequency_to_channel(int freq
);
3580 * Name indirection necessary because the ieee80211 code also has
3581 * a function named "ieee80211_get_channel", so if you include
3582 * cfg80211's header file you get cfg80211's version, if you try
3583 * to include both header files you'll (rightfully!) get a symbol
3586 struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
3589 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
3590 * @wiphy: the struct wiphy to get the channel for
3591 * @freq: the center frequency of the channel
3592 * Return: The channel struct from @wiphy at @freq.
3594 static inline struct ieee80211_channel
*
3595 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
3597 return __ieee80211_get_channel(wiphy
, freq
);
3601 * ieee80211_get_response_rate - get basic rate for a given rate
3603 * @sband: the band to look for rates in
3604 * @basic_rates: bitmap of basic rates
3605 * @bitrate: the bitrate for which to find the basic rate
3607 * Return: The basic rate corresponding to a given bitrate, that
3608 * is the next lower bitrate contained in the basic rate map,
3609 * which is, for this function, given as a bitmap of indices of
3610 * rates in the band's bitrate table.
3612 struct ieee80211_rate
*
3613 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
3614 u32 basic_rates
, int bitrate
);
3617 * ieee80211_mandatory_rates - get mandatory rates for a given band
3618 * @sband: the band to look for rates in
3619 * @scan_width: width of the control channel
3621 * This function returns a bitmap of the mandatory rates for the given
3622 * band, bits are set according to the rate position in the bitrates array.
3624 u32
ieee80211_mandatory_rates(struct ieee80211_supported_band
*sband
,
3625 enum nl80211_bss_scan_width scan_width
);
3628 * Radiotap parsing functions -- for controlled injection support
3630 * Implemented in net/wireless/radiotap.c
3631 * Documentation in Documentation/networking/radiotap-headers.txt
3634 struct radiotap_align_size
{
3635 uint8_t align
:4, size
:4;
3638 struct ieee80211_radiotap_namespace
{
3639 const struct radiotap_align_size
*align_size
;
3645 struct ieee80211_radiotap_vendor_namespaces
{
3646 const struct ieee80211_radiotap_namespace
*ns
;
3651 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
3652 * @this_arg_index: index of current arg, valid after each successful call
3653 * to ieee80211_radiotap_iterator_next()
3654 * @this_arg: pointer to current radiotap arg; it is valid after each
3655 * call to ieee80211_radiotap_iterator_next() but also after
3656 * ieee80211_radiotap_iterator_init() where it will point to
3657 * the beginning of the actual data portion
3658 * @this_arg_size: length of the current arg, for convenience
3659 * @current_namespace: pointer to the current namespace definition
3660 * (or internally %NULL if the current namespace is unknown)
3661 * @is_radiotap_ns: indicates whether the current namespace is the default
3662 * radiotap namespace or not
3664 * @_rtheader: pointer to the radiotap header we are walking through
3665 * @_max_length: length of radiotap header in cpu byte ordering
3666 * @_arg_index: next argument index
3667 * @_arg: next argument pointer
3668 * @_next_bitmap: internal pointer to next present u32
3669 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
3670 * @_vns: vendor namespace definitions
3671 * @_next_ns_data: beginning of the next namespace's data
3672 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
3675 * Describes the radiotap parser state. Fields prefixed with an underscore
3676 * must not be used by users of the parser, only by the parser internally.
3679 struct ieee80211_radiotap_iterator
{
3680 struct ieee80211_radiotap_header
*_rtheader
;
3681 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
3682 const struct ieee80211_radiotap_namespace
*current_namespace
;
3684 unsigned char *_arg
, *_next_ns_data
;
3685 __le32
*_next_bitmap
;
3687 unsigned char *this_arg
;
3695 uint32_t _bitmap_shifter
;
3700 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator
*iterator
,
3701 struct ieee80211_radiotap_header
*radiotap_header
,
3703 const struct ieee80211_radiotap_vendor_namespaces
*vns
);
3706 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator
*iterator
);
3709 extern const unsigned char rfc1042_header
[6];
3710 extern const unsigned char bridge_tunnel_header
[6];
3713 * ieee80211_get_hdrlen_from_skb - get header length from data
3717 * Given an skb with a raw 802.11 header at the data pointer this function
3718 * returns the 802.11 header length.
3720 * Return: The 802.11 header length in bytes (not including encryption
3721 * headers). Or 0 if the data in the sk_buff is too short to contain a valid
3724 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
3727 * ieee80211_hdrlen - get header length in bytes from frame control
3728 * @fc: frame control field in little-endian format
3729 * Return: The header length in bytes.
3731 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
3734 * ieee80211_get_mesh_hdrlen - get mesh extension header length
3735 * @meshhdr: the mesh extension header, only the flags field
3736 * (first byte) will be accessed
3737 * Return: The length of the extension header, which is always at
3738 * least 6 bytes and at most 18 if address 5 and 6 are present.
3740 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr
*meshhdr
);
3743 * DOC: Data path helpers
3745 * In addition to generic utilities, cfg80211 also offers
3746 * functions that help implement the data path for devices
3747 * that do not do the 802.11/802.3 conversion on the device.
3751 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
3752 * @skb: the 802.11 data frame
3753 * @addr: the device MAC address
3754 * @iftype: the virtual interface type
3755 * Return: 0 on success. Non-zero on error.
3757 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
3758 enum nl80211_iftype iftype
);
3761 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
3762 * @skb: the 802.3 frame
3763 * @addr: the device MAC address
3764 * @iftype: the virtual interface type
3765 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
3766 * @qos: build 802.11 QoS data frame
3767 * Return: 0 on success, or a negative error code.
3769 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
3770 enum nl80211_iftype iftype
, const u8
*bssid
,
3774 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
3776 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
3777 * 802.3 frames. The @list will be empty if the decode fails. The
3778 * @skb is consumed after the function returns.
3780 * @skb: The input IEEE 802.11n A-MSDU frame.
3781 * @list: The output list of 802.3 frames. It must be allocated and
3782 * initialized by by the caller.
3783 * @addr: The device MAC address.
3784 * @iftype: The device interface type.
3785 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
3786 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
3788 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
3789 const u8
*addr
, enum nl80211_iftype iftype
,
3790 const unsigned int extra_headroom
,
3791 bool has_80211_header
);
3794 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
3795 * @skb: the data frame
3796 * @qos_map: Interworking QoS mapping or %NULL if not in use
3797 * Return: The 802.1p/1d tag.
3799 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
,
3800 struct cfg80211_qos_map
*qos_map
);
3803 * cfg80211_find_ie - find information element in data
3806 * @ies: data consisting of IEs
3807 * @len: length of data
3809 * Return: %NULL if the element ID could not be found or if
3810 * the element is invalid (claims to be longer than the given
3811 * data), or a pointer to the first byte of the requested
3812 * element, that is the byte containing the element ID.
3814 * Note: There are no checks on the element length other than
3815 * having to fit into the given data.
3817 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
3820 * cfg80211_find_vendor_ie - find vendor specific information element in data
3823 * @oui_type: vendor-specific OUI type
3824 * @ies: data consisting of IEs
3825 * @len: length of data
3827 * Return: %NULL if the vendor specific element ID could not be found or if the
3828 * element is invalid (claims to be longer than the given data), or a pointer to
3829 * the first byte of the requested element, that is the byte containing the
3832 * Note: There are no checks on the element length other than having to fit into
3835 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
3836 const u8
*ies
, int len
);
3839 * DOC: Regulatory enforcement infrastructure
3845 * regulatory_hint - driver hint to the wireless core a regulatory domain
3846 * @wiphy: the wireless device giving the hint (used only for reporting
3848 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
3849 * should be in. If @rd is set this should be NULL. Note that if you
3850 * set this to NULL you should still set rd->alpha2 to some accepted
3853 * Wireless drivers can use this function to hint to the wireless core
3854 * what it believes should be the current regulatory domain by
3855 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
3856 * domain should be in or by providing a completely build regulatory domain.
3857 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
3858 * for a regulatory domain structure for the respective country.
3860 * The wiphy must have been registered to cfg80211 prior to this call.
3861 * For cfg80211 drivers this means you must first use wiphy_register(),
3862 * for mac80211 drivers you must first use ieee80211_register_hw().
3864 * Drivers should check the return value, its possible you can get
3867 * Return: 0 on success. -ENOMEM.
3869 int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
3872 * regulatory_set_wiphy_regd - set regdom info for self managed drivers
3873 * @wiphy: the wireless device we want to process the regulatory domain on
3874 * @rd: the regulatory domain informatoin to use for this wiphy
3876 * Set the regulatory domain information for self-managed wiphys, only they
3877 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more
3880 * Return: 0 on success. -EINVAL, -EPERM
3882 int regulatory_set_wiphy_regd(struct wiphy
*wiphy
,
3883 struct ieee80211_regdomain
*rd
);
3886 * regulatory_set_wiphy_regd_sync_rtnl - set regdom for self-managed drivers
3887 * @wiphy: the wireless device we want to process the regulatory domain on
3888 * @rd: the regulatory domain information to use for this wiphy
3890 * This functions requires the RTNL to be held and applies the new regdomain
3891 * synchronously to this wiphy. For more details see
3892 * regulatory_set_wiphy_regd().
3894 * Return: 0 on success. -EINVAL, -EPERM
3896 int regulatory_set_wiphy_regd_sync_rtnl(struct wiphy
*wiphy
,
3897 struct ieee80211_regdomain
*rd
);
3900 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
3901 * @wiphy: the wireless device we want to process the regulatory domain on
3902 * @regd: the custom regulatory domain to use for this wiphy
3904 * Drivers can sometimes have custom regulatory domains which do not apply
3905 * to a specific country. Drivers can use this to apply such custom regulatory
3906 * domains. This routine must be called prior to wiphy registration. The
3907 * custom regulatory domain will be trusted completely and as such previous
3908 * default channel settings will be disregarded. If no rule is found for a
3909 * channel on the regulatory domain the channel will be disabled.
3910 * Drivers using this for a wiphy should also set the wiphy flag
3911 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy
3912 * that called this helper.
3914 void wiphy_apply_custom_regulatory(struct wiphy
*wiphy
,
3915 const struct ieee80211_regdomain
*regd
);
3918 * freq_reg_info - get regulatory information for the given frequency
3919 * @wiphy: the wiphy for which we want to process this rule for
3920 * @center_freq: Frequency in KHz for which we want regulatory information for
3922 * Use this function to get the regulatory rule for a specific frequency on
3923 * a given wireless device. If the device has a specific regulatory domain
3924 * it wants to follow we respect that unless a country IE has been received
3925 * and processed already.
3927 * Return: A valid pointer, or, when an error occurs, for example if no rule
3928 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to
3929 * check and PTR_ERR() to obtain the numeric return value. The numeric return
3930 * value will be -ERANGE if we determine the given center_freq does not even
3931 * have a regulatory rule for a frequency range in the center_freq's band.
3932 * See freq_in_rule_band() for our current definition of a band -- this is
3933 * purely subjective and right now it's 802.11 specific.
3935 const struct ieee80211_reg_rule
*freq_reg_info(struct wiphy
*wiphy
,
3939 * reg_initiator_name - map regulatory request initiator enum to name
3940 * @initiator: the regulatory request initiator
3942 * You can use this to map the regulatory request initiator enum to a
3943 * proper string representation.
3945 const char *reg_initiator_name(enum nl80211_reg_initiator initiator
);
3948 * callbacks for asynchronous cfg80211 methods, notification
3949 * functions and BSS handling helpers
3953 * cfg80211_scan_done - notify that scan finished
3955 * @request: the corresponding scan request
3956 * @aborted: set to true if the scan was aborted for any reason,
3957 * userspace will be notified of that
3959 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
3962 * cfg80211_sched_scan_results - notify that new scan results are available
3964 * @wiphy: the wiphy which got scheduled scan results
3966 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
3969 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
3971 * @wiphy: the wiphy on which the scheduled scan stopped
3973 * The driver can call this function to inform cfg80211 that the
3974 * scheduled scan had to be stopped, for whatever reason. The driver
3975 * is then called back via the sched_scan_stop operation when done.
3977 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
3980 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped
3982 * @wiphy: the wiphy on which the scheduled scan stopped
3984 * The driver can call this function to inform cfg80211 that the
3985 * scheduled scan had to be stopped, for whatever reason. The driver
3986 * is then called back via the sched_scan_stop operation when done.
3987 * This function should be called with rtnl locked.
3989 void cfg80211_sched_scan_stopped_rtnl(struct wiphy
*wiphy
);
3992 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame
3993 * @wiphy: the wiphy reporting the BSS
3994 * @data: the BSS metadata
3995 * @mgmt: the management frame (probe response or beacon)
3996 * @len: length of the management frame
3997 * @gfp: context flags
3999 * This informs cfg80211 that BSS information was found and
4000 * the BSS should be updated/added.
4002 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4003 * Or %NULL on error.
4005 struct cfg80211_bss
* __must_check
4006 cfg80211_inform_bss_frame_data(struct wiphy
*wiphy
,
4007 struct cfg80211_inform_bss
*data
,
4008 struct ieee80211_mgmt
*mgmt
, size_t len
,
4011 static inline struct cfg80211_bss
* __must_check
4012 cfg80211_inform_bss_width_frame(struct wiphy
*wiphy
,
4013 struct ieee80211_channel
*rx_channel
,
4014 enum nl80211_bss_scan_width scan_width
,
4015 struct ieee80211_mgmt
*mgmt
, size_t len
,
4016 s32 signal
, gfp_t gfp
)
4018 struct cfg80211_inform_bss data
= {
4020 .scan_width
= scan_width
,
4024 return cfg80211_inform_bss_frame_data(wiphy
, &data
, mgmt
, len
, gfp
);
4027 static inline struct cfg80211_bss
* __must_check
4028 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
4029 struct ieee80211_channel
*rx_channel
,
4030 struct ieee80211_mgmt
*mgmt
, size_t len
,
4031 s32 signal
, gfp_t gfp
)
4033 struct cfg80211_inform_bss data
= {
4035 .scan_width
= NL80211_BSS_CHAN_WIDTH_20
,
4039 return cfg80211_inform_bss_frame_data(wiphy
, &data
, mgmt
, len
, gfp
);
4043 * enum cfg80211_bss_frame_type - frame type that the BSS data came from
4044 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
4045 * from a beacon or probe response
4046 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
4047 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
4049 enum cfg80211_bss_frame_type
{
4050 CFG80211_BSS_FTYPE_UNKNOWN
,
4051 CFG80211_BSS_FTYPE_BEACON
,
4052 CFG80211_BSS_FTYPE_PRESP
,
4056 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS
4058 * @wiphy: the wiphy reporting the BSS
4059 * @data: the BSS metadata
4060 * @ftype: frame type (if known)
4061 * @bssid: the BSSID of the BSS
4062 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
4063 * @capability: the capability field sent by the peer
4064 * @beacon_interval: the beacon interval announced by the peer
4065 * @ie: additional IEs sent by the peer
4066 * @ielen: length of the additional IEs
4067 * @gfp: context flags
4069 * This informs cfg80211 that BSS information was found and
4070 * the BSS should be updated/added.
4072 * Return: A referenced struct, must be released with cfg80211_put_bss()!
4073 * Or %NULL on error.
4075 struct cfg80211_bss
* __must_check
4076 cfg80211_inform_bss_data(struct wiphy
*wiphy
,
4077 struct cfg80211_inform_bss
*data
,
4078 enum cfg80211_bss_frame_type ftype
,
4079 const u8
*bssid
, u64 tsf
, u16 capability
,
4080 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
4083 static inline struct cfg80211_bss
* __must_check
4084 cfg80211_inform_bss_width(struct wiphy
*wiphy
,
4085 struct ieee80211_channel
*rx_channel
,
4086 enum nl80211_bss_scan_width scan_width
,
4087 enum cfg80211_bss_frame_type ftype
,
4088 const u8
*bssid
, u64 tsf
, u16 capability
,
4089 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
4090 s32 signal
, gfp_t gfp
)
4092 struct cfg80211_inform_bss data
= {
4094 .scan_width
= scan_width
,
4098 return cfg80211_inform_bss_data(wiphy
, &data
, ftype
, bssid
, tsf
,
4099 capability
, beacon_interval
, ie
, ielen
,
4103 static inline struct cfg80211_bss
* __must_check
4104 cfg80211_inform_bss(struct wiphy
*wiphy
,
4105 struct ieee80211_channel
*rx_channel
,
4106 enum cfg80211_bss_frame_type ftype
,
4107 const u8
*bssid
, u64 tsf
, u16 capability
,
4108 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
4109 s32 signal
, gfp_t gfp
)
4111 struct cfg80211_inform_bss data
= {
4113 .scan_width
= NL80211_BSS_CHAN_WIDTH_20
,
4117 return cfg80211_inform_bss_data(wiphy
, &data
, ftype
, bssid
, tsf
,
4118 capability
, beacon_interval
, ie
, ielen
,
4122 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
4123 struct ieee80211_channel
*channel
,
4125 const u8
*ssid
, size_t ssid_len
,
4126 enum ieee80211_bss_type bss_type
,
4127 enum ieee80211_privacy
);
4128 static inline struct cfg80211_bss
*
4129 cfg80211_get_ibss(struct wiphy
*wiphy
,
4130 struct ieee80211_channel
*channel
,
4131 const u8
*ssid
, size_t ssid_len
)
4133 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
4134 IEEE80211_BSS_TYPE_IBSS
,
4135 IEEE80211_PRIVACY_ANY
);
4139 * cfg80211_ref_bss - reference BSS struct
4140 * @wiphy: the wiphy this BSS struct belongs to
4141 * @bss: the BSS struct to reference
4143 * Increments the refcount of the given BSS struct.
4145 void cfg80211_ref_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4148 * cfg80211_put_bss - unref BSS struct
4149 * @wiphy: the wiphy this BSS struct belongs to
4150 * @bss: the BSS struct
4152 * Decrements the refcount of the given BSS struct.
4154 void cfg80211_put_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4157 * cfg80211_unlink_bss - unlink BSS from internal data structures
4159 * @bss: the bss to remove
4161 * This function removes the given BSS from the internal data structures
4162 * thereby making it no longer show up in scan results etc. Use this
4163 * function when you detect a BSS is gone. Normally BSSes will also time
4164 * out, so it is not necessary to use this function at all.
4166 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
4168 static inline enum nl80211_bss_scan_width
4169 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def
*chandef
)
4171 switch (chandef
->width
) {
4172 case NL80211_CHAN_WIDTH_5
:
4173 return NL80211_BSS_CHAN_WIDTH_5
;
4174 case NL80211_CHAN_WIDTH_10
:
4175 return NL80211_BSS_CHAN_WIDTH_10
;
4177 return NL80211_BSS_CHAN_WIDTH_20
;
4182 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
4183 * @dev: network device
4184 * @buf: authentication frame (header + body)
4185 * @len: length of the frame data
4187 * This function is called whenever an authentication, disassociation or
4188 * deauthentication frame has been received and processed in station mode.
4189 * After being asked to authenticate via cfg80211_ops::auth() the driver must
4190 * call either this function or cfg80211_auth_timeout().
4191 * After being asked to associate via cfg80211_ops::assoc() the driver must
4192 * call either this function or cfg80211_auth_timeout().
4193 * While connected, the driver must calls this for received and processed
4194 * disassociation and deauthentication frames. If the frame couldn't be used
4195 * because it was unprotected, the driver must call the function
4196 * cfg80211_rx_unprot_mlme_mgmt() instead.
4198 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4200 void cfg80211_rx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
4203 * cfg80211_auth_timeout - notification of timed out authentication
4204 * @dev: network device
4205 * @addr: The MAC address of the device with which the authentication timed out
4207 * This function may sleep. The caller must hold the corresponding wdev's
4210 void cfg80211_auth_timeout(struct net_device
*dev
, const u8
*addr
);
4213 * cfg80211_rx_assoc_resp - notification of processed association response
4214 * @dev: network device
4215 * @bss: the BSS that association was requested with, ownership of the pointer
4216 * moves to cfg80211 in this call
4217 * @buf: authentication frame (header + body)
4218 * @len: length of the frame data
4219 * @uapsd_queues: bitmap of ACs configured to uapsd. -1 if n/a.
4221 * After being asked to associate via cfg80211_ops::assoc() the driver must
4222 * call either this function or cfg80211_auth_timeout().
4224 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4226 void cfg80211_rx_assoc_resp(struct net_device
*dev
,
4227 struct cfg80211_bss
*bss
,
4228 const u8
*buf
, size_t len
,
4232 * cfg80211_assoc_timeout - notification of timed out association
4233 * @dev: network device
4234 * @bss: The BSS entry with which association timed out.
4236 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4238 void cfg80211_assoc_timeout(struct net_device
*dev
, struct cfg80211_bss
*bss
);
4241 * cfg80211_abandon_assoc - notify cfg80211 of abandoned association attempt
4242 * @dev: network device
4243 * @bss: The BSS entry with which association was abandoned.
4245 * Call this whenever - for reasons reported through other API, like deauth RX,
4246 * an association attempt was abandoned.
4247 * This function may sleep. The caller must hold the corresponding wdev's mutex.
4249 void cfg80211_abandon_assoc(struct net_device
*dev
, struct cfg80211_bss
*bss
);
4252 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
4253 * @dev: network device
4254 * @buf: 802.11 frame (header + body)
4255 * @len: length of the frame data
4257 * This function is called whenever deauthentication has been processed in
4258 * station mode. This includes both received deauthentication frames and
4259 * locally generated ones. This function may sleep. The caller must hold the
4260 * corresponding wdev's mutex.
4262 void cfg80211_tx_mlme_mgmt(struct net_device
*dev
, const u8
*buf
, size_t len
);
4265 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
4266 * @dev: network device
4267 * @buf: deauthentication frame (header + body)
4268 * @len: length of the frame data
4270 * This function is called whenever a received deauthentication or dissassoc
4271 * frame has been dropped in station mode because of MFP being used but the
4272 * frame was not protected. This function may sleep.
4274 void cfg80211_rx_unprot_mlme_mgmt(struct net_device
*dev
,
4275 const u8
*buf
, size_t len
);
4278 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
4279 * @dev: network device
4280 * @addr: The source MAC address of the frame
4281 * @key_type: The key type that the received frame used
4282 * @key_id: Key identifier (0..3). Can be -1 if missing.
4283 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
4284 * @gfp: allocation flags
4286 * This function is called whenever the local MAC detects a MIC failure in a
4287 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
4290 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
4291 enum nl80211_key_type key_type
, int key_id
,
4292 const u8
*tsc
, gfp_t gfp
);
4295 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
4297 * @dev: network device
4298 * @bssid: the BSSID of the IBSS joined
4299 * @channel: the channel of the IBSS joined
4300 * @gfp: allocation flags
4302 * This function notifies cfg80211 that the device joined an IBSS or
4303 * switched to a different BSSID. Before this function can be called,
4304 * either a beacon has to have been received from the IBSS, or one of
4305 * the cfg80211_inform_bss{,_frame} functions must have been called
4306 * with the locally generated beacon -- this guarantees that there is
4307 * always a scan result for this IBSS. cfg80211 will handle the rest.
4309 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
,
4310 struct ieee80211_channel
*channel
, gfp_t gfp
);
4313 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
4315 * @dev: network device
4316 * @macaddr: the MAC address of the new candidate
4317 * @ie: information elements advertised by the peer candidate
4318 * @ie_len: lenght of the information elements buffer
4319 * @gfp: allocation flags
4321 * This function notifies cfg80211 that the mesh peer candidate has been
4322 * detected, most likely via a beacon or, less likely, via a probe response.
4323 * cfg80211 then sends a notification to userspace.
4325 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
4326 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
4329 * DOC: RFkill integration
4331 * RFkill integration in cfg80211 is almost invisible to drivers,
4332 * as cfg80211 automatically registers an rfkill instance for each
4333 * wireless device it knows about. Soft kill is also translated
4334 * into disconnecting and turning all interfaces off, drivers are
4335 * expected to turn off the device when all interfaces are down.
4337 * However, devices may have a hard RFkill line, in which case they
4338 * also need to interact with the rfkill subsystem, via cfg80211.
4339 * They can do this with a few helper functions documented here.
4343 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
4345 * @blocked: block status
4347 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
4350 * wiphy_rfkill_start_polling - start polling rfkill
4353 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
4356 * wiphy_rfkill_stop_polling - stop polling rfkill
4359 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
4362 * DOC: Vendor commands
4364 * Occasionally, there are special protocol or firmware features that
4365 * can't be implemented very openly. For this and similar cases, the
4366 * vendor command functionality allows implementing the features with
4367 * (typically closed-source) userspace and firmware, using nl80211 as
4368 * the configuration mechanism.
4370 * A driver supporting vendor commands must register them as an array
4371 * in struct wiphy, with handlers for each one, each command has an
4372 * OUI and sub command ID to identify it.
4374 * Note that this feature should not be (ab)used to implement protocol
4375 * features that could openly be shared across drivers. In particular,
4376 * it must never be required to use vendor commands to implement any
4377 * "normal" functionality that higher-level userspace like connection
4378 * managers etc. need.
4381 struct sk_buff
*__cfg80211_alloc_reply_skb(struct wiphy
*wiphy
,
4382 enum nl80211_commands cmd
,
4383 enum nl80211_attrs attr
,
4386 struct sk_buff
*__cfg80211_alloc_event_skb(struct wiphy
*wiphy
,
4387 struct wireless_dev
*wdev
,
4388 enum nl80211_commands cmd
,
4389 enum nl80211_attrs attr
,
4390 int vendor_event_idx
,
4391 int approxlen
, gfp_t gfp
);
4393 void __cfg80211_send_event_skb(struct sk_buff
*skb
, gfp_t gfp
);
4396 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply
4398 * @approxlen: an upper bound of the length of the data that will
4399 * be put into the skb
4401 * This function allocates and pre-fills an skb for a reply to
4402 * a vendor command. Since it is intended for a reply, calling
4403 * it outside of a vendor command's doit() operation is invalid.
4405 * The returned skb is pre-filled with some identifying data in
4406 * a way that any data that is put into the skb (with skb_put(),
4407 * nla_put() or similar) will end up being within the
4408 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done
4409 * with the skb is adding data for the corresponding userspace tool
4410 * which can then read that data out of the vendor data attribute.
4411 * You must not modify the skb in any other way.
4413 * When done, call cfg80211_vendor_cmd_reply() with the skb and return
4414 * its error code as the result of the doit() operation.
4416 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4418 static inline struct sk_buff
*
4419 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4421 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_VENDOR
,
4422 NL80211_ATTR_VENDOR_DATA
, approxlen
);
4426 * cfg80211_vendor_cmd_reply - send the reply skb
4427 * @skb: The skb, must have been allocated with
4428 * cfg80211_vendor_cmd_alloc_reply_skb()
4430 * Since calling this function will usually be the last thing
4431 * before returning from the vendor command doit() you should
4432 * return the error code. Note that this function consumes the
4433 * skb regardless of the return value.
4435 * Return: An error code or 0 on success.
4437 int cfg80211_vendor_cmd_reply(struct sk_buff
*skb
);
4440 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb
4442 * @wdev: the wireless device
4443 * @event_idx: index of the vendor event in the wiphy's vendor_events
4444 * @approxlen: an upper bound of the length of the data that will
4445 * be put into the skb
4446 * @gfp: allocation flags
4448 * This function allocates and pre-fills an skb for an event on the
4449 * vendor-specific multicast group.
4451 * If wdev != NULL, both the ifindex and identifier of the specified
4452 * wireless device are added to the event message before the vendor data
4455 * When done filling the skb, call cfg80211_vendor_event() with the
4456 * skb to send the event.
4458 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4460 static inline struct sk_buff
*
4461 cfg80211_vendor_event_alloc(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
4462 int approxlen
, int event_idx
, gfp_t gfp
)
4464 return __cfg80211_alloc_event_skb(wiphy
, wdev
, NL80211_CMD_VENDOR
,
4465 NL80211_ATTR_VENDOR_DATA
,
4466 event_idx
, approxlen
, gfp
);
4470 * cfg80211_vendor_event - send the event
4471 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc()
4472 * @gfp: allocation flags
4474 * This function sends the given @skb, which must have been allocated
4475 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it.
4477 static inline void cfg80211_vendor_event(struct sk_buff
*skb
, gfp_t gfp
)
4479 __cfg80211_send_event_skb(skb
, gfp
);
4482 #ifdef CONFIG_NL80211_TESTMODE
4486 * Test mode is a set of utility functions to allow drivers to
4487 * interact with driver-specific tools to aid, for instance,
4488 * factory programming.
4490 * This chapter describes how drivers interact with it, for more
4491 * information see the nl80211 book's chapter on it.
4495 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
4497 * @approxlen: an upper bound of the length of the data that will
4498 * be put into the skb
4500 * This function allocates and pre-fills an skb for a reply to
4501 * the testmode command. Since it is intended for a reply, calling
4502 * it outside of the @testmode_cmd operation is invalid.
4504 * The returned skb is pre-filled with the wiphy index and set up in
4505 * a way that any data that is put into the skb (with skb_put(),
4506 * nla_put() or similar) will end up being within the
4507 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done
4508 * with the skb is adding data for the corresponding userspace tool
4509 * which can then read that data out of the testdata attribute. You
4510 * must not modify the skb in any other way.
4512 * When done, call cfg80211_testmode_reply() with the skb and return
4513 * its error code as the result of the @testmode_cmd operation.
4515 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4517 static inline struct sk_buff
*
4518 cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
, int approxlen
)
4520 return __cfg80211_alloc_reply_skb(wiphy
, NL80211_CMD_TESTMODE
,
4521 NL80211_ATTR_TESTDATA
, approxlen
);
4525 * cfg80211_testmode_reply - send the reply skb
4526 * @skb: The skb, must have been allocated with
4527 * cfg80211_testmode_alloc_reply_skb()
4529 * Since calling this function will usually be the last thing
4530 * before returning from the @testmode_cmd you should return
4531 * the error code. Note that this function consumes the skb
4532 * regardless of the return value.
4534 * Return: An error code or 0 on success.
4536 static inline int cfg80211_testmode_reply(struct sk_buff
*skb
)
4538 return cfg80211_vendor_cmd_reply(skb
);
4542 * cfg80211_testmode_alloc_event_skb - allocate testmode event
4544 * @approxlen: an upper bound of the length of the data that will
4545 * be put into the skb
4546 * @gfp: allocation flags
4548 * This function allocates and pre-fills an skb for an event on the
4549 * testmode multicast group.
4551 * The returned skb is set up in the same way as with
4552 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As
4553 * there, you should simply add data to it that will then end up in the
4554 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb
4557 * When done filling the skb, call cfg80211_testmode_event() with the
4558 * skb to send the event.
4560 * Return: An allocated and pre-filled skb. %NULL if any errors happen.
4562 static inline struct sk_buff
*
4563 cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
, int approxlen
, gfp_t gfp
)
4565 return __cfg80211_alloc_event_skb(wiphy
, NULL
, NL80211_CMD_TESTMODE
,
4566 NL80211_ATTR_TESTDATA
, -1,
4571 * cfg80211_testmode_event - send the event
4572 * @skb: The skb, must have been allocated with
4573 * cfg80211_testmode_alloc_event_skb()
4574 * @gfp: allocation flags
4576 * This function sends the given @skb, which must have been allocated
4577 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
4580 static inline void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
)
4582 __cfg80211_send_event_skb(skb
, gfp
);
4585 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
4586 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
4588 #define CFG80211_TESTMODE_CMD(cmd)
4589 #define CFG80211_TESTMODE_DUMP(cmd)
4593 * cfg80211_connect_result - notify cfg80211 of connection result
4595 * @dev: network device
4596 * @bssid: the BSSID of the AP
4597 * @req_ie: association request IEs (maybe be %NULL)
4598 * @req_ie_len: association request IEs length
4599 * @resp_ie: association response IEs (may be %NULL)
4600 * @resp_ie_len: assoc response IEs length
4601 * @status: status code, 0 for successful connection, use
4602 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
4603 * the real status code for failures.
4604 * @gfp: allocation flags
4606 * It should be called by the underlying driver whenever connect() has
4609 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
4610 const u8
*req_ie
, size_t req_ie_len
,
4611 const u8
*resp_ie
, size_t resp_ie_len
,
4612 u16 status
, gfp_t gfp
);
4615 * cfg80211_roamed - notify cfg80211 of roaming
4617 * @dev: network device
4618 * @channel: the channel of the new AP
4619 * @bssid: the BSSID of the new AP
4620 * @req_ie: association request IEs (maybe be %NULL)
4621 * @req_ie_len: association request IEs length
4622 * @resp_ie: association response IEs (may be %NULL)
4623 * @resp_ie_len: assoc response IEs length
4624 * @gfp: allocation flags
4626 * It should be called by the underlying driver whenever it roamed
4627 * from one AP to another while connected.
4629 void cfg80211_roamed(struct net_device
*dev
,
4630 struct ieee80211_channel
*channel
,
4632 const u8
*req_ie
, size_t req_ie_len
,
4633 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4636 * cfg80211_roamed_bss - notify cfg80211 of roaming
4638 * @dev: network device
4639 * @bss: entry of bss to which STA got roamed
4640 * @req_ie: association request IEs (maybe be %NULL)
4641 * @req_ie_len: association request IEs length
4642 * @resp_ie: association response IEs (may be %NULL)
4643 * @resp_ie_len: assoc response IEs length
4644 * @gfp: allocation flags
4646 * This is just a wrapper to notify cfg80211 of roaming event with driver
4647 * passing bss to avoid a race in timeout of the bss entry. It should be
4648 * called by the underlying driver whenever it roamed from one AP to another
4649 * while connected. Drivers which have roaming implemented in firmware
4650 * may use this function to avoid a race in bss entry timeout where the bss
4651 * entry of the new AP is seen in the driver, but gets timed out by the time
4652 * it is accessed in __cfg80211_roamed() due to delay in scheduling
4653 * rdev->event_work. In case of any failures, the reference is released
4654 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
4655 * it will be released while diconneting from the current bss.
4657 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
4658 const u8
*req_ie
, size_t req_ie_len
,
4659 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
4662 * cfg80211_disconnected - notify cfg80211 that connection was dropped
4664 * @dev: network device
4665 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
4666 * @ie_len: length of IEs
4667 * @reason: reason code for the disconnection, set it to 0 if unknown
4668 * @locally_generated: disconnection was requested locally
4669 * @gfp: allocation flags
4671 * After it calls this function, the driver should enter an idle state
4672 * and not try to connect to any AP any more.
4674 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
4675 const u8
*ie
, size_t ie_len
,
4676 bool locally_generated
, gfp_t gfp
);
4679 * cfg80211_ready_on_channel - notification of remain_on_channel start
4680 * @wdev: wireless device
4681 * @cookie: the request cookie
4682 * @chan: The current channel (from remain_on_channel request)
4683 * @duration: Duration in milliseconds that the driver intents to remain on the
4685 * @gfp: allocation flags
4687 void cfg80211_ready_on_channel(struct wireless_dev
*wdev
, u64 cookie
,
4688 struct ieee80211_channel
*chan
,
4689 unsigned int duration
, gfp_t gfp
);
4692 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
4693 * @wdev: wireless device
4694 * @cookie: the request cookie
4695 * @chan: The current channel (from remain_on_channel request)
4696 * @gfp: allocation flags
4698 void cfg80211_remain_on_channel_expired(struct wireless_dev
*wdev
, u64 cookie
,
4699 struct ieee80211_channel
*chan
,
4704 * cfg80211_new_sta - notify userspace about station
4707 * @mac_addr: the station's address
4708 * @sinfo: the station information
4709 * @gfp: allocation flags
4711 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
4712 struct station_info
*sinfo
, gfp_t gfp
);
4715 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station
4717 * @mac_addr: the station's address
4718 * @sinfo: the station information/statistics
4719 * @gfp: allocation flags
4721 void cfg80211_del_sta_sinfo(struct net_device
*dev
, const u8
*mac_addr
,
4722 struct station_info
*sinfo
, gfp_t gfp
);
4725 * cfg80211_del_sta - notify userspace about deletion of a station
4728 * @mac_addr: the station's address
4729 * @gfp: allocation flags
4731 static inline void cfg80211_del_sta(struct net_device
*dev
,
4732 const u8
*mac_addr
, gfp_t gfp
)
4734 cfg80211_del_sta_sinfo(dev
, mac_addr
, NULL
, gfp
);
4738 * cfg80211_conn_failed - connection request failed notification
4741 * @mac_addr: the station's address
4742 * @reason: the reason for connection failure
4743 * @gfp: allocation flags
4745 * Whenever a station tries to connect to an AP and if the station
4746 * could not connect to the AP as the AP has rejected the connection
4747 * for some reasons, this function is called.
4749 * The reason for connection failure can be any of the value from
4750 * nl80211_connect_failed_reason enum
4752 void cfg80211_conn_failed(struct net_device
*dev
, const u8
*mac_addr
,
4753 enum nl80211_connect_failed_reason reason
,
4757 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
4758 * @wdev: wireless device receiving the frame
4759 * @freq: Frequency on which the frame was received in MHz
4760 * @sig_dbm: signal strength in mBm, or 0 if unknown
4761 * @buf: Management frame (header + body)
4762 * @len: length of the frame data
4763 * @flags: flags, as defined in enum nl80211_rxmgmt_flags
4765 * This function is called whenever an Action frame is received for a station
4766 * mode interface, but is not processed in kernel.
4768 * Return: %true if a user space application has registered for this frame.
4769 * For action frames, that makes it responsible for rejecting unrecognized
4770 * action frames; %false otherwise, in which case for action frames the
4771 * driver is responsible for rejecting the frame.
4773 bool cfg80211_rx_mgmt(struct wireless_dev
*wdev
, int freq
, int sig_dbm
,
4774 const u8
*buf
, size_t len
, u32 flags
);
4777 * cfg80211_mgmt_tx_status - notification of TX status for management frame
4778 * @wdev: wireless device receiving the frame
4779 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
4780 * @buf: Management frame (header + body)
4781 * @len: length of the frame data
4782 * @ack: Whether frame was acknowledged
4783 * @gfp: context flags
4785 * This function is called whenever a management frame was requested to be
4786 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
4787 * transmission attempt.
4789 void cfg80211_mgmt_tx_status(struct wireless_dev
*wdev
, u64 cookie
,
4790 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
4794 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
4795 * @dev: network device
4796 * @rssi_event: the triggered RSSI event
4797 * @gfp: context flags
4799 * This function is called when a configured connection quality monitoring
4800 * rssi threshold reached event occurs.
4802 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
4803 enum nl80211_cqm_rssi_threshold_event rssi_event
,
4807 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
4808 * @dev: network device
4809 * @peer: peer's MAC address
4810 * @num_packets: how many packets were lost -- should be a fixed threshold
4811 * but probably no less than maybe 50, or maybe a throughput dependent
4812 * threshold (to account for temporary interference)
4813 * @gfp: context flags
4815 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
4816 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
4819 * cfg80211_cqm_txe_notify - TX error rate event
4820 * @dev: network device
4821 * @peer: peer's MAC address
4822 * @num_packets: how many packets were lost
4823 * @rate: % of packets which failed transmission
4824 * @intvl: interval (in s) over which the TX failure threshold was breached.
4825 * @gfp: context flags
4827 * Notify userspace when configured % TX failures over number of packets in a
4828 * given interval is exceeded.
4830 void cfg80211_cqm_txe_notify(struct net_device
*dev
, const u8
*peer
,
4831 u32 num_packets
, u32 rate
, u32 intvl
, gfp_t gfp
);
4834 * cfg80211_cqm_beacon_loss_notify - beacon loss event
4835 * @dev: network device
4836 * @gfp: context flags
4838 * Notify userspace about beacon loss from the connected AP.
4840 void cfg80211_cqm_beacon_loss_notify(struct net_device
*dev
, gfp_t gfp
);
4843 * cfg80211_radar_event - radar detection event
4845 * @chandef: chandef for the current channel
4846 * @gfp: context flags
4848 * This function is called when a radar is detected on the current chanenl.
4850 void cfg80211_radar_event(struct wiphy
*wiphy
,
4851 struct cfg80211_chan_def
*chandef
, gfp_t gfp
);
4854 * cfg80211_cac_event - Channel availability check (CAC) event
4855 * @netdev: network device
4856 * @chandef: chandef for the current channel
4857 * @event: type of event
4858 * @gfp: context flags
4860 * This function is called when a Channel availability check (CAC) is finished
4861 * or aborted. This must be called to notify the completion of a CAC process,
4862 * also by full-MAC drivers.
4864 void cfg80211_cac_event(struct net_device
*netdev
,
4865 const struct cfg80211_chan_def
*chandef
,
4866 enum nl80211_radar_event event
, gfp_t gfp
);
4870 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
4871 * @dev: network device
4872 * @bssid: BSSID of AP (to avoid races)
4873 * @replay_ctr: new replay counter
4874 * @gfp: allocation flags
4876 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
4877 const u8
*replay_ctr
, gfp_t gfp
);
4880 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
4881 * @dev: network device
4882 * @index: candidate index (the smaller the index, the higher the priority)
4883 * @bssid: BSSID of AP
4884 * @preauth: Whether AP advertises support for RSN pre-authentication
4885 * @gfp: allocation flags
4887 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
4888 const u8
*bssid
, bool preauth
, gfp_t gfp
);
4891 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
4892 * @dev: The device the frame matched to
4893 * @addr: the transmitter address
4894 * @gfp: context flags
4896 * This function is used in AP mode (only!) to inform userspace that
4897 * a spurious class 3 frame was received, to be able to deauth the
4899 * Return: %true if the frame was passed to userspace (or this failed
4900 * for a reason other than not having a subscription.)
4902 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
4903 const u8
*addr
, gfp_t gfp
);
4906 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
4907 * @dev: The device the frame matched to
4908 * @addr: the transmitter address
4909 * @gfp: context flags
4911 * This function is used in AP mode (only!) to inform userspace that
4912 * an associated station sent a 4addr frame but that wasn't expected.
4913 * It is allowed and desirable to send this event only once for each
4914 * station to avoid event flooding.
4915 * Return: %true if the frame was passed to userspace (or this failed
4916 * for a reason other than not having a subscription.)
4918 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
4919 const u8
*addr
, gfp_t gfp
);
4922 * cfg80211_probe_status - notify userspace about probe status
4923 * @dev: the device the probe was sent on
4924 * @addr: the address of the peer
4925 * @cookie: the cookie filled in @probe_client previously
4926 * @acked: indicates whether probe was acked or not
4927 * @gfp: allocation flags
4929 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
4930 u64 cookie
, bool acked
, gfp_t gfp
);
4933 * cfg80211_report_obss_beacon - report beacon from other APs
4934 * @wiphy: The wiphy that received the beacon
4936 * @len: length of the frame
4937 * @freq: frequency the frame was received on
4938 * @sig_dbm: signal strength in mBm, or 0 if unknown
4940 * Use this function to report to userspace when a beacon was
4941 * received. It is not useful to call this when there is no
4942 * netdev that is in AP/GO mode.
4944 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
4945 const u8
*frame
, size_t len
,
4946 int freq
, int sig_dbm
);
4949 * cfg80211_reg_can_beacon - check if beaconing is allowed
4951 * @chandef: the channel definition
4952 * @iftype: interface type
4954 * Return: %true if there is no secondary channel or the secondary channel(s)
4955 * can be used for beaconing (i.e. is not a radar channel etc.)
4957 bool cfg80211_reg_can_beacon(struct wiphy
*wiphy
,
4958 struct cfg80211_chan_def
*chandef
,
4959 enum nl80211_iftype iftype
);
4962 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation
4964 * @chandef: the channel definition
4965 * @iftype: interface type
4967 * Return: %true if there is no secondary channel or the secondary channel(s)
4968 * can be used for beaconing (i.e. is not a radar channel etc.). This version
4969 * also checks if IR-relaxation conditions apply, to allow beaconing under
4970 * more permissive conditions.
4972 * Requires the RTNL to be held.
4974 bool cfg80211_reg_can_beacon_relax(struct wiphy
*wiphy
,
4975 struct cfg80211_chan_def
*chandef
,
4976 enum nl80211_iftype iftype
);
4979 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
4980 * @dev: the device which switched channels
4981 * @chandef: the new channel definition
4983 * Caller must acquire wdev_lock, therefore must only be called from sleepable
4986 void cfg80211_ch_switch_notify(struct net_device
*dev
,
4987 struct cfg80211_chan_def
*chandef
);
4990 * cfg80211_ch_switch_started_notify - notify channel switch start
4991 * @dev: the device on which the channel switch started
4992 * @chandef: the future channel definition
4993 * @count: the number of TBTTs until the channel switch happens
4995 * Inform the userspace about the channel switch that has just
4996 * started, so that it can take appropriate actions (eg. starting
4997 * channel switch on other vifs), if necessary.
4999 void cfg80211_ch_switch_started_notify(struct net_device
*dev
,
5000 struct cfg80211_chan_def
*chandef
,
5004 * ieee80211_operating_class_to_band - convert operating class to band
5006 * @operating_class: the operating class to convert
5007 * @band: band pointer to fill
5009 * Returns %true if the conversion was successful, %false otherwise.
5011 bool ieee80211_operating_class_to_band(u8 operating_class
,
5012 enum nl80211_band
*band
);
5015 * ieee80211_chandef_to_operating_class - convert chandef to operation class
5017 * @chandef: the chandef to convert
5018 * @op_class: a pointer to the resulting operating class
5020 * Returns %true if the conversion was successful, %false otherwise.
5022 bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def
*chandef
,
5026 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
5027 * @dev: the device on which the operation is requested
5028 * @peer: the MAC address of the peer device
5029 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or
5030 * NL80211_TDLS_TEARDOWN)
5031 * @reason_code: the reason code for teardown request
5032 * @gfp: allocation flags
5034 * This function is used to request userspace to perform TDLS operation that
5035 * requires knowledge of keys, i.e., link setup or teardown when the AP
5036 * connection uses encryption. This is optional mechanism for the driver to use
5037 * if it can automatically determine when a TDLS link could be useful (e.g.,
5038 * based on traffic and signal strength for a peer).
5040 void cfg80211_tdls_oper_request(struct net_device
*dev
, const u8
*peer
,
5041 enum nl80211_tdls_operation oper
,
5042 u16 reason_code
, gfp_t gfp
);
5045 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
5046 * @rate: given rate_info to calculate bitrate from
5048 * return 0 if MCS index >= 32
5050 u32
cfg80211_calculate_bitrate(struct rate_info
*rate
);
5053 * cfg80211_unregister_wdev - remove the given wdev
5054 * @wdev: struct wireless_dev to remove
5056 * Call this function only for wdevs that have no netdev assigned,
5057 * e.g. P2P Devices. It removes the device from the list so that
5058 * it can no longer be used. It is necessary to call this function
5059 * even when cfg80211 requests the removal of the interface by
5060 * calling the del_virtual_intf() callback. The function must also
5061 * be called when the driver wishes to unregister the wdev, e.g.
5062 * when the device is unbound from the driver.
5064 * Requires the RTNL to be held.
5066 void cfg80211_unregister_wdev(struct wireless_dev
*wdev
);
5069 * struct cfg80211_ft_event - FT Information Elements
5071 * @ies_len: length of the FT IE in bytes
5072 * @target_ap: target AP's MAC address
5074 * @ric_ies_len: length of the RIC IE in bytes
5076 struct cfg80211_ft_event_params
{
5079 const u8
*target_ap
;
5085 * cfg80211_ft_event - notify userspace about FT IE and RIC IE
5086 * @netdev: network device
5087 * @ft_event: IE information
5089 void cfg80211_ft_event(struct net_device
*netdev
,
5090 struct cfg80211_ft_event_params
*ft_event
);
5093 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
5094 * @ies: the input IE buffer
5095 * @len: the input length
5096 * @attr: the attribute ID to find
5097 * @buf: output buffer, can be %NULL if the data isn't needed, e.g.
5098 * if the function is only called to get the needed buffer size
5099 * @bufsize: size of the output buffer
5101 * The function finds a given P2P attribute in the (vendor) IEs and
5102 * copies its contents to the given buffer.
5104 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is
5105 * malformed or the attribute can't be found (respectively), or the
5106 * length of the found attribute (which can be zero).
5108 int cfg80211_get_p2p_attr(const u8
*ies
, unsigned int len
,
5109 enum ieee80211_p2p_attr_id attr
,
5110 u8
*buf
, unsigned int bufsize
);
5113 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC)
5114 * @ies: the IE buffer
5115 * @ielen: the length of the IE buffer
5116 * @ids: an array with element IDs that are allowed before
5118 * @n_ids: the size of the element ID array
5119 * @after_ric: array IE types that come after the RIC element
5120 * @n_after_ric: size of the @after_ric array
5121 * @offset: offset where to start splitting in the buffer
5123 * This function splits an IE buffer by updating the @offset
5124 * variable to point to the location where the buffer should be
5127 * It assumes that the given IE buffer is well-formed, this
5128 * has to be guaranteed by the caller!
5130 * It also assumes that the IEs in the buffer are ordered
5131 * correctly, if not the result of using this function will not
5132 * be ordered correctly either, i.e. it does no reordering.
5134 * The function returns the offset where the next part of the
5135 * buffer starts, which may be @ielen if the entire (remainder)
5136 * of the buffer should be used.
5138 size_t ieee80211_ie_split_ric(const u8
*ies
, size_t ielen
,
5139 const u8
*ids
, int n_ids
,
5140 const u8
*after_ric
, int n_after_ric
,
5144 * ieee80211_ie_split - split an IE buffer according to ordering
5145 * @ies: the IE buffer
5146 * @ielen: the length of the IE buffer
5147 * @ids: an array with element IDs that are allowed before
5149 * @n_ids: the size of the element ID array
5150 * @offset: offset where to start splitting in the buffer
5152 * This function splits an IE buffer by updating the @offset
5153 * variable to point to the location where the buffer should be
5156 * It assumes that the given IE buffer is well-formed, this
5157 * has to be guaranteed by the caller!
5159 * It also assumes that the IEs in the buffer are ordered
5160 * correctly, if not the result of using this function will not
5161 * be ordered correctly either, i.e. it does no reordering.
5163 * The function returns the offset where the next part of the
5164 * buffer starts, which may be @ielen if the entire (remainder)
5165 * of the buffer should be used.
5167 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
5168 const u8
*ids
, int n_ids
, size_t offset
);
5171 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN
5172 * @wdev: the wireless device reporting the wakeup
5173 * @wakeup: the wakeup report
5174 * @gfp: allocation flags
5176 * This function reports that the given device woke up. If it
5177 * caused the wakeup, report the reason(s), otherwise you may
5178 * pass %NULL as the @wakeup parameter to advertise that something
5179 * else caused the wakeup.
5181 void cfg80211_report_wowlan_wakeup(struct wireless_dev
*wdev
,
5182 struct cfg80211_wowlan_wakeup
*wakeup
,
5186 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
5188 * @wdev: the wireless device for which critical protocol is stopped.
5189 * @gfp: allocation flags
5191 * This function can be called by the driver to indicate it has reverted
5192 * operation back to normal. One reason could be that the duration given
5193 * by .crit_proto_start() has expired.
5195 void cfg80211_crit_proto_stopped(struct wireless_dev
*wdev
, gfp_t gfp
);
5198 * ieee80211_get_num_supported_channels - get number of channels device has
5201 * Return: the number of channels supported by the device.
5203 unsigned int ieee80211_get_num_supported_channels(struct wiphy
*wiphy
);
5206 * cfg80211_check_combinations - check interface combinations
5209 * @num_different_channels: the number of different channels we want
5210 * to use for verification
5211 * @radar_detect: a bitmap where each bit corresponds to a channel
5212 * width where radar detection is needed, as in the definition of
5213 * &struct ieee80211_iface_combination.@radar_detect_widths
5214 * @iftype_num: array with the numbers of interfaces of each interface
5215 * type. The index is the interface type as specified in &enum
5218 * This function can be called by the driver to check whether a
5219 * combination of interfaces and their types are allowed according to
5220 * the interface combinations.
5222 int cfg80211_check_combinations(struct wiphy
*wiphy
,
5223 const int num_different_channels
,
5224 const u8 radar_detect
,
5225 const int iftype_num
[NUM_NL80211_IFTYPES
]);
5228 * cfg80211_iter_combinations - iterate over matching combinations
5231 * @num_different_channels: the number of different channels we want
5232 * to use for verification
5233 * @radar_detect: a bitmap where each bit corresponds to a channel
5234 * width where radar detection is needed, as in the definition of
5235 * &struct ieee80211_iface_combination.@radar_detect_widths
5236 * @iftype_num: array with the numbers of interfaces of each interface
5237 * type. The index is the interface type as specified in &enum
5239 * @iter: function to call for each matching combination
5240 * @data: pointer to pass to iter function
5242 * This function can be called by the driver to check what possible
5243 * combinations it fits in at a given moment, e.g. for channel switching
5246 int cfg80211_iter_combinations(struct wiphy
*wiphy
,
5247 const int num_different_channels
,
5248 const u8 radar_detect
,
5249 const int iftype_num
[NUM_NL80211_IFTYPES
],
5250 void (*iter
)(const struct ieee80211_iface_combination
*c
,
5255 * cfg80211_stop_iface - trigger interface disconnection
5258 * @wdev: wireless device
5259 * @gfp: context flags
5261 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA
5264 * Note: This doesn't need any locks and is asynchronous.
5266 void cfg80211_stop_iface(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
5270 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy
5271 * @wiphy: the wiphy to shut down
5273 * This function shuts down all interfaces belonging to this wiphy by
5274 * calling dev_close() (and treating non-netdev interfaces as needed).
5275 * It shouldn't really be used unless there are some fatal device errors
5276 * that really can't be recovered in any other way.
5278 * Callers must hold the RTNL and be able to deal with callbacks into
5279 * the driver while the function is running.
5281 void cfg80211_shutdown_all_interfaces(struct wiphy
*wiphy
);
5284 * wiphy_ext_feature_set - set the extended feature flag
5286 * @wiphy: the wiphy to modify.
5287 * @ftidx: extended feature bit index.
5289 * The extended features are flagged in multiple bytes (see
5290 * &struct wiphy.@ext_features)
5292 static inline void wiphy_ext_feature_set(struct wiphy
*wiphy
,
5293 enum nl80211_ext_feature_index ftidx
)
5297 ft_byte
= &wiphy
->ext_features
[ftidx
/ 8];
5298 *ft_byte
|= BIT(ftidx
% 8);
5302 * wiphy_ext_feature_isset - check the extended feature flag
5304 * @wiphy: the wiphy to modify.
5305 * @ftidx: extended feature bit index.
5307 * The extended features are flagged in multiple bytes (see
5308 * &struct wiphy.@ext_features)
5311 wiphy_ext_feature_isset(struct wiphy
*wiphy
,
5312 enum nl80211_ext_feature_index ftidx
)
5316 ft_byte
= wiphy
->ext_features
[ftidx
/ 8];
5317 return (ft_byte
& BIT(ftidx
% 8)) != 0;
5320 /* ethtool helper */
5321 void cfg80211_get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
);
5323 /* Logging, debugging and troubleshooting/diagnostic helpers. */
5325 /* wiphy_printk helpers, similar to dev_printk */
5327 #define wiphy_printk(level, wiphy, format, args...) \
5328 dev_printk(level, &(wiphy)->dev, format, ##args)
5329 #define wiphy_emerg(wiphy, format, args...) \
5330 dev_emerg(&(wiphy)->dev, format, ##args)
5331 #define wiphy_alert(wiphy, format, args...) \
5332 dev_alert(&(wiphy)->dev, format, ##args)
5333 #define wiphy_crit(wiphy, format, args...) \
5334 dev_crit(&(wiphy)->dev, format, ##args)
5335 #define wiphy_err(wiphy, format, args...) \
5336 dev_err(&(wiphy)->dev, format, ##args)
5337 #define wiphy_warn(wiphy, format, args...) \
5338 dev_warn(&(wiphy)->dev, format, ##args)
5339 #define wiphy_notice(wiphy, format, args...) \
5340 dev_notice(&(wiphy)->dev, format, ##args)
5341 #define wiphy_info(wiphy, format, args...) \
5342 dev_info(&(wiphy)->dev, format, ##args)
5344 #define wiphy_debug(wiphy, format, args...) \
5345 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
5347 #define wiphy_dbg(wiphy, format, args...) \
5348 dev_dbg(&(wiphy)->dev, format, ##args)
5350 #if defined(VERBOSE_DEBUG)
5351 #define wiphy_vdbg wiphy_dbg
5353 #define wiphy_vdbg(wiphy, format, args...) \
5356 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
5362 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
5363 * of using a WARN/WARN_ON to get the message out, including the
5364 * file/line information and a backtrace.
5366 #define wiphy_WARN(wiphy, format, args...) \
5367 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
5369 #endif /* __NET_CFG80211_H */