1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/bug.h>
17 #include <linux/netlink.h>
18 #include <linux/skbuff.h>
19 #include <linux/nl80211.h>
20 #include <linux/if_ether.h>
21 #include <linux/ieee80211.h>
22 #include <net/regulatory.h>
27 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
28 * userspace and drivers, and offers some utility functionality associated
29 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
30 * by all modern wireless drivers in Linux, so that they offer a consistent
31 * API through nl80211. For backward compatibility, cfg80211 also offers
32 * wireless extensions to userspace, but hides them from drivers completely.
34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
40 * DOC: Device registration
42 * In order for a driver to use cfg80211, it must register the hardware device
43 * with cfg80211. This happens through a number of hardware capability structs
46 * The fundamental structure for each device is the 'wiphy', of which each
47 * instance describes a physical wireless device connected to the system. Each
48 * such wiphy can have zero, one, or many virtual interfaces associated with
49 * it, which need to be identified as such by pointing the network interface's
50 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
51 * the wireless part of the interface, normally this struct is embedded in the
52 * network interface's private data area. Drivers can optionally allow creating
53 * or destroying virtual interfaces on the fly, but without at least one or the
54 * ability to create some the wireless device isn't useful.
56 * Each wiphy structure contains device capability information, and also has
57 * a pointer to the various operations the driver offers. The definitions and
58 * structures here describe these capabilities in detail.
62 * wireless hardware capability structures
66 * enum ieee80211_band - supported frequency bands
68 * The bands are assigned this way because the supported
69 * bitrates differ in these bands.
71 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
72 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
73 * @IEEE80211_NUM_BANDS: number of defined bands
76 IEEE80211_BAND_2GHZ
= NL80211_BAND_2GHZ
,
77 IEEE80211_BAND_5GHZ
= NL80211_BAND_5GHZ
,
84 * enum ieee80211_channel_flags - channel flags
86 * Channel flags set by the regulatory control code.
88 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
89 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
91 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
92 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
93 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
95 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
98 enum ieee80211_channel_flags
{
99 IEEE80211_CHAN_DISABLED
= 1<<0,
100 IEEE80211_CHAN_PASSIVE_SCAN
= 1<<1,
101 IEEE80211_CHAN_NO_IBSS
= 1<<2,
102 IEEE80211_CHAN_RADAR
= 1<<3,
103 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
104 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
107 #define IEEE80211_CHAN_NO_HT40 \
108 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
111 * struct ieee80211_channel - channel definition
113 * This structure describes a single channel for use
116 * @center_freq: center frequency in MHz
117 * @hw_value: hardware-specific value for the channel
118 * @flags: channel flags from &enum ieee80211_channel_flags.
119 * @orig_flags: channel flags at registration time, used by regulatory
120 * code to support devices with additional restrictions
121 * @band: band this channel belongs to.
122 * @max_antenna_gain: maximum antenna gain in dBi
123 * @max_power: maximum transmission power (in dBm)
124 * @max_reg_power: maximum regulatory transmission power (in dBm)
125 * @beacon_found: helper to regulatory code to indicate when a beacon
126 * has been found on this channel. Use regulatory_hint_found_beacon()
127 * to enable this, this is useful only on 5 GHz band.
128 * @orig_mag: internal use
129 * @orig_mpwr: internal use
131 struct ieee80211_channel
{
132 enum ieee80211_band band
;
136 int max_antenna_gain
;
141 int orig_mag
, orig_mpwr
;
145 * enum ieee80211_rate_flags - rate flags
147 * Hardware/specification flags for rates. These are structured
148 * in a way that allows using the same bitrate structure for
149 * different bands/PHY modes.
151 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
152 * preamble on this bitrate; only relevant in 2.4GHz band and
154 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
155 * when used with 802.11a (on the 5 GHz band); filled by the
156 * core code when registering the wiphy.
157 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
158 * when used with 802.11b (on the 2.4 GHz band); filled by the
159 * core code when registering the wiphy.
160 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
161 * when used with 802.11g (on the 2.4 GHz band); filled by the
162 * core code when registering the wiphy.
163 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
165 enum ieee80211_rate_flags
{
166 IEEE80211_RATE_SHORT_PREAMBLE
= 1<<0,
167 IEEE80211_RATE_MANDATORY_A
= 1<<1,
168 IEEE80211_RATE_MANDATORY_B
= 1<<2,
169 IEEE80211_RATE_MANDATORY_G
= 1<<3,
170 IEEE80211_RATE_ERP_G
= 1<<4,
174 * struct ieee80211_rate - bitrate definition
176 * This structure describes a bitrate that an 802.11 PHY can
177 * operate with. The two values @hw_value and @hw_value_short
178 * are only for driver use when pointers to this structure are
181 * @flags: rate-specific flags
182 * @bitrate: bitrate in units of 100 Kbps
183 * @hw_value: driver/hardware value for this rate
184 * @hw_value_short: driver/hardware value for this rate when
185 * short preamble is used
187 struct ieee80211_rate
{
190 u16 hw_value
, hw_value_short
;
194 * struct ieee80211_sta_ht_cap - STA's HT capabilities
196 * This structure describes most essential parameters needed
197 * to describe 802.11n HT capabilities for an STA.
199 * @ht_supported: is HT supported by the STA
200 * @cap: HT capabilities map as described in 802.11n spec
201 * @ampdu_factor: Maximum A-MPDU length factor
202 * @ampdu_density: Minimum A-MPDU spacing
203 * @mcs: Supported MCS rates
205 struct ieee80211_sta_ht_cap
{
206 u16 cap
; /* use IEEE80211_HT_CAP_ */
210 struct ieee80211_mcs_info mcs
;
214 * struct ieee80211_supported_band - frequency band definition
216 * This structure describes a frequency band a wiphy
217 * is able to operate in.
219 * @channels: Array of channels the hardware can operate in
221 * @band: the band this structure represents
222 * @n_channels: Number of channels in @channels
223 * @bitrates: Array of bitrates the hardware can operate with
224 * in this band. Must be sorted to give a valid "supported
225 * rates" IE, i.e. CCK rates first, then OFDM.
226 * @n_bitrates: Number of bitrates in @bitrates
227 * @ht_cap: HT capabilities in this band
229 struct ieee80211_supported_band
{
230 struct ieee80211_channel
*channels
;
231 struct ieee80211_rate
*bitrates
;
232 enum ieee80211_band band
;
235 struct ieee80211_sta_ht_cap ht_cap
;
239 * Wireless hardware/device configuration structures and methods
243 * DOC: Actions and configuration
245 * Each wireless device and each virtual interface offer a set of configuration
246 * operations and other actions that are invoked by userspace. Each of these
247 * actions is described in the operations structure, and the parameters these
248 * operations use are described separately.
250 * Additionally, some operations are asynchronous and expect to get status
251 * information via some functions that drivers need to call.
253 * Scanning and BSS list handling with its associated functionality is described
254 * in a separate chapter.
258 * struct vif_params - describes virtual interface parameters
259 * @use_4addr: use 4-address frames
266 * struct key_params - key information
268 * Information about a key
271 * @key_len: length of key material
272 * @cipher: cipher suite selector
273 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
274 * with the get_key() callback, must be in little endian,
275 * length given by @seq_len.
276 * @seq_len: length of @seq.
287 * enum survey_info_flags - survey information flags
289 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
290 * @SURVEY_INFO_IN_USE: channel is currently being used
291 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
292 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
293 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
294 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
295 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
297 * Used by the driver to indicate which info in &struct survey_info
298 * it has filled in during the get_survey().
300 enum survey_info_flags
{
301 SURVEY_INFO_NOISE_DBM
= 1<<0,
302 SURVEY_INFO_IN_USE
= 1<<1,
303 SURVEY_INFO_CHANNEL_TIME
= 1<<2,
304 SURVEY_INFO_CHANNEL_TIME_BUSY
= 1<<3,
305 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY
= 1<<4,
306 SURVEY_INFO_CHANNEL_TIME_RX
= 1<<5,
307 SURVEY_INFO_CHANNEL_TIME_TX
= 1<<6,
311 * struct survey_info - channel survey response
313 * @channel: the channel this survey record reports, mandatory
314 * @filled: bitflag of flags from &enum survey_info_flags
315 * @noise: channel noise in dBm. This and all following fields are
317 * @channel_time: amount of time in ms the radio spent on the channel
318 * @channel_time_busy: amount of time the primary channel was sensed busy
319 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
320 * @channel_time_rx: amount of time the radio spent receiving data
321 * @channel_time_tx: amount of time the radio spent transmitting data
323 * Used by dump_survey() to report back per-channel survey information.
325 * This structure can later be expanded with things like
326 * channel duty cycle etc.
329 struct ieee80211_channel
*channel
;
331 u64 channel_time_busy
;
332 u64 channel_time_ext_busy
;
340 * struct cfg80211_crypto_settings - Crypto settings
341 * @wpa_versions: indicates which, if any, WPA versions are enabled
342 * (from enum nl80211_wpa_versions)
343 * @cipher_group: group key cipher suite (or 0 if unset)
344 * @n_ciphers_pairwise: number of AP supported unicast ciphers
345 * @ciphers_pairwise: unicast key cipher suites
346 * @n_akm_suites: number of AKM suites
347 * @akm_suites: AKM suites
348 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
349 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
350 * required to assume that the port is unauthorized until authorized by
351 * user space. Otherwise, port is marked authorized by default.
352 * @control_port_ethertype: the control port protocol that should be
353 * allowed through even on unauthorized ports
354 * @control_port_no_encrypt: TRUE to prevent encryption of control port
357 struct cfg80211_crypto_settings
{
360 int n_ciphers_pairwise
;
361 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
363 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
365 __be16 control_port_ethertype
;
366 bool control_port_no_encrypt
;
370 * struct cfg80211_beacon_data - beacon data
371 * @head: head portion of beacon (before TIM IE)
372 * or %NULL if not changed
373 * @tail: tail portion of beacon (after TIM IE)
374 * or %NULL if not changed
375 * @head_len: length of @head
376 * @tail_len: length of @tail
377 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
378 * @beacon_ies_len: length of beacon_ies in octets
379 * @proberesp_ies: extra information element(s) to add into Probe Response
381 * @proberesp_ies_len: length of proberesp_ies in octets
382 * @assocresp_ies: extra information element(s) to add into (Re)Association
383 * Response frames or %NULL
384 * @assocresp_ies_len: length of assocresp_ies in octets
385 * @probe_resp_len: length of probe response template (@probe_resp)
386 * @probe_resp: probe response template (AP mode only)
388 struct cfg80211_beacon_data
{
389 const u8
*head
, *tail
;
390 const u8
*beacon_ies
;
391 const u8
*proberesp_ies
;
392 const u8
*assocresp_ies
;
393 const u8
*probe_resp
;
395 size_t head_len
, tail_len
;
396 size_t beacon_ies_len
;
397 size_t proberesp_ies_len
;
398 size_t assocresp_ies_len
;
399 size_t probe_resp_len
;
403 * struct cfg80211_ap_settings - AP configuration
405 * Used to configure an AP interface.
407 * @channel: the channel to start the AP on
408 * @channel_type: the channel type to use
409 * @beacon: beacon data
410 * @beacon_interval: beacon interval
411 * @dtim_period: DTIM period
412 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
414 * @ssid_len: length of @ssid
415 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
416 * @crypto: crypto settings
417 * @privacy: the BSS uses privacy
418 * @auth_type: Authentication type (algorithm)
419 * @inactivity_timeout: time in seconds to determine station's inactivity.
421 struct cfg80211_ap_settings
{
422 struct ieee80211_channel
*channel
;
423 enum nl80211_channel_type channel_type
;
425 struct cfg80211_beacon_data beacon
;
427 int beacon_interval
, dtim_period
;
430 enum nl80211_hidden_ssid hidden_ssid
;
431 struct cfg80211_crypto_settings crypto
;
433 enum nl80211_auth_type auth_type
;
434 int inactivity_timeout
;
438 * enum plink_action - actions to perform in mesh peers
440 * @PLINK_ACTION_INVALID: action 0 is reserved
441 * @PLINK_ACTION_OPEN: start mesh peer link establishment
442 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
445 PLINK_ACTION_INVALID
,
451 * enum station_parameters_apply_mask - station parameter values to apply
452 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
454 * Not all station parameters have in-band "no change" signalling,
455 * for those that don't these flags will are used.
457 enum station_parameters_apply_mask
{
458 STATION_PARAM_APPLY_UAPSD
= BIT(0),
462 * struct station_parameters - station parameters
464 * Used to change and create a new station.
466 * @vlan: vlan interface station should belong to
467 * @supported_rates: supported rates in IEEE 802.11 format
468 * (or NULL for no change)
469 * @supported_rates_len: number of supported rates
470 * @sta_flags_mask: station flags that changed
471 * (bitmask of BIT(NL80211_STA_FLAG_...))
472 * @sta_flags_set: station flags values
473 * (bitmask of BIT(NL80211_STA_FLAG_...))
474 * @listen_interval: listen interval or -1 for no change
475 * @aid: AID or zero for no change
476 * @plink_action: plink action to take
477 * @plink_state: set the peer link state for a station
478 * @ht_capa: HT capabilities of station
479 * @uapsd_queues: bitmap of queues configured for uapsd. same format
480 * as the AC bitmap in the QoS info field
481 * @max_sp: max Service Period. same format as the MAX_SP in the
482 * QoS info field (but already shifted down)
483 * @sta_modify_mask: bitmap indicating which parameters changed
484 * (for those that don't have a natural "no change" value),
485 * see &enum station_parameters_apply_mask
487 struct station_parameters
{
489 struct net_device
*vlan
;
490 u32 sta_flags_mask
, sta_flags_set
;
494 u8 supported_rates_len
;
497 struct ieee80211_ht_cap
*ht_capa
;
503 * enum station_info_flags - station information flags
505 * Used by the driver to indicate which info in &struct station_info
506 * it has filled in during get_station() or dump_station().
508 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
509 * @STATION_INFO_RX_BYTES: @rx_bytes filled
510 * @STATION_INFO_TX_BYTES: @tx_bytes filled
511 * @STATION_INFO_LLID: @llid filled
512 * @STATION_INFO_PLID: @plid filled
513 * @STATION_INFO_PLINK_STATE: @plink_state filled
514 * @STATION_INFO_SIGNAL: @signal filled
515 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
516 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
517 * @STATION_INFO_RX_PACKETS: @rx_packets filled
518 * @STATION_INFO_TX_PACKETS: @tx_packets filled
519 * @STATION_INFO_TX_RETRIES: @tx_retries filled
520 * @STATION_INFO_TX_FAILED: @tx_failed filled
521 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
522 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
523 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
524 * @STATION_INFO_BSS_PARAM: @bss_param filled
525 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
526 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
527 * @STATION_INFO_STA_FLAGS: @sta_flags filled
528 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
529 * @STATION_INFO_T_OFFSET: @t_offset filled
531 enum station_info_flags
{
532 STATION_INFO_INACTIVE_TIME
= 1<<0,
533 STATION_INFO_RX_BYTES
= 1<<1,
534 STATION_INFO_TX_BYTES
= 1<<2,
535 STATION_INFO_LLID
= 1<<3,
536 STATION_INFO_PLID
= 1<<4,
537 STATION_INFO_PLINK_STATE
= 1<<5,
538 STATION_INFO_SIGNAL
= 1<<6,
539 STATION_INFO_TX_BITRATE
= 1<<7,
540 STATION_INFO_RX_PACKETS
= 1<<8,
541 STATION_INFO_TX_PACKETS
= 1<<9,
542 STATION_INFO_TX_RETRIES
= 1<<10,
543 STATION_INFO_TX_FAILED
= 1<<11,
544 STATION_INFO_RX_DROP_MISC
= 1<<12,
545 STATION_INFO_SIGNAL_AVG
= 1<<13,
546 STATION_INFO_RX_BITRATE
= 1<<14,
547 STATION_INFO_BSS_PARAM
= 1<<15,
548 STATION_INFO_CONNECTED_TIME
= 1<<16,
549 STATION_INFO_ASSOC_REQ_IES
= 1<<17,
550 STATION_INFO_STA_FLAGS
= 1<<18,
551 STATION_INFO_BEACON_LOSS_COUNT
= 1<<19,
552 STATION_INFO_T_OFFSET
= 1<<20,
556 * enum station_info_rate_flags - bitrate info flags
558 * Used by the driver to indicate the specific rate transmission
559 * type for 802.11n transmissions.
561 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
562 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
563 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
565 enum rate_info_flags
{
566 RATE_INFO_FLAGS_MCS
= 1<<0,
567 RATE_INFO_FLAGS_40_MHZ_WIDTH
= 1<<1,
568 RATE_INFO_FLAGS_SHORT_GI
= 1<<2,
572 * struct rate_info - bitrate information
574 * Information about a receiving or transmitting bitrate
576 * @flags: bitflag of flags from &enum rate_info_flags
577 * @mcs: mcs index if struct describes a 802.11n bitrate
578 * @legacy: bitrate in 100kbit/s for 802.11abg
587 * enum station_info_rate_flags - bitrate info flags
589 * Used by the driver to indicate the specific rate transmission
590 * type for 802.11n transmissions.
592 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
593 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
594 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
596 enum bss_param_flags
{
597 BSS_PARAM_FLAGS_CTS_PROT
= 1<<0,
598 BSS_PARAM_FLAGS_SHORT_PREAMBLE
= 1<<1,
599 BSS_PARAM_FLAGS_SHORT_SLOT_TIME
= 1<<2,
603 * struct sta_bss_parameters - BSS parameters for the attached station
605 * Information about the currently associated BSS
607 * @flags: bitflag of flags from &enum bss_param_flags
608 * @dtim_period: DTIM period for the BSS
609 * @beacon_interval: beacon interval
611 struct sta_bss_parameters
{
618 * struct station_info - station information
620 * Station information filled by driver for get_station() and dump_station.
622 * @filled: bitflag of flags from &enum station_info_flags
623 * @connected_time: time(in secs) since a station is last connected
624 * @inactive_time: time since last station activity (tx/rx) in milliseconds
625 * @rx_bytes: bytes received from this station
626 * @tx_bytes: bytes transmitted to this station
627 * @llid: mesh local link id
628 * @plid: mesh peer link id
629 * @plink_state: mesh peer link state
630 * @signal: The signal strength, type depends on the wiphy's signal_type.
631 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
632 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
633 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
634 * @txrate: current unicast bitrate from this station
635 * @rxrate: current unicast bitrate to this station
636 * @rx_packets: packets received from this station
637 * @tx_packets: packets transmitted to this station
638 * @tx_retries: cumulative retry counts
639 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
640 * @rx_dropped_misc: Dropped for un-specified reason.
641 * @bss_param: current BSS parameters
642 * @generation: generation number for nl80211 dumps.
643 * This number should increase every time the list of stations
644 * changes, i.e. when a station is added or removed, so that
645 * userspace can tell whether it got a consistent snapshot.
646 * @assoc_req_ies: IEs from (Re)Association Request.
647 * This is used only when in AP mode with drivers that do not use
648 * user space MLME/SME implementation. The information is provided for
649 * the cfg80211_new_sta() calls to notify user space of the IEs.
650 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
651 * @sta_flags: station flags mask & values
652 * @beacon_loss_count: Number of times beacon loss event has triggered.
653 * @t_offset: Time offset of the station relative to this host.
655 struct station_info
{
666 struct rate_info txrate
;
667 struct rate_info rxrate
;
673 struct sta_bss_parameters bss_param
;
674 struct nl80211_sta_flag_update sta_flags
;
678 const u8
*assoc_req_ies
;
679 size_t assoc_req_ies_len
;
681 u32 beacon_loss_count
;
685 * Note: Add a new enum station_info_flags value for each new field and
686 * use it to check which fields are initialized.
691 * enum monitor_flags - monitor flags
693 * Monitor interface configuration flags. Note that these must be the bits
694 * according to the nl80211 flags.
696 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
697 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
698 * @MONITOR_FLAG_CONTROL: pass control frames
699 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
700 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
703 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
704 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
705 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
706 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
707 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
711 * enum mpath_info_flags - mesh path information flags
713 * Used by the driver to indicate which info in &struct mpath_info it has filled
714 * in during get_station() or dump_station().
716 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
717 * @MPATH_INFO_SN: @sn filled
718 * @MPATH_INFO_METRIC: @metric filled
719 * @MPATH_INFO_EXPTIME: @exptime filled
720 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
721 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
722 * @MPATH_INFO_FLAGS: @flags filled
724 enum mpath_info_flags
{
725 MPATH_INFO_FRAME_QLEN
= BIT(0),
726 MPATH_INFO_SN
= BIT(1),
727 MPATH_INFO_METRIC
= BIT(2),
728 MPATH_INFO_EXPTIME
= BIT(3),
729 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
730 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
731 MPATH_INFO_FLAGS
= BIT(6),
735 * struct mpath_info - mesh path information
737 * Mesh path information filled by driver for get_mpath() and dump_mpath().
739 * @filled: bitfield of flags from &enum mpath_info_flags
740 * @frame_qlen: number of queued frames for this destination
741 * @sn: target sequence number
742 * @metric: metric (cost) of this mesh path
743 * @exptime: expiration time for the mesh path from now, in msecs
744 * @flags: mesh path flags
745 * @discovery_timeout: total mesh path discovery timeout, in msecs
746 * @discovery_retries: mesh path discovery retries
747 * @generation: generation number for nl80211 dumps.
748 * This number should increase every time the list of mesh paths
749 * changes, i.e. when a station is added or removed, so that
750 * userspace can tell whether it got a consistent snapshot.
758 u32 discovery_timeout
;
759 u8 discovery_retries
;
766 * struct bss_parameters - BSS parameters
768 * Used to change BSS parameters (mainly for AP mode).
770 * @use_cts_prot: Whether to use CTS protection
771 * (0 = no, 1 = yes, -1 = do not change)
772 * @use_short_preamble: Whether the use of short preambles is allowed
773 * (0 = no, 1 = yes, -1 = do not change)
774 * @use_short_slot_time: Whether the use of short slot time is allowed
775 * (0 = no, 1 = yes, -1 = do not change)
776 * @basic_rates: basic rates in IEEE 802.11 format
777 * (or NULL for no change)
778 * @basic_rates_len: number of basic rates
779 * @ap_isolate: do not forward packets between connected stations
780 * @ht_opmode: HT Operation mode
781 * (u16 = opmode, -1 = do not change)
783 struct bss_parameters
{
785 int use_short_preamble
;
786 int use_short_slot_time
;
794 * struct mesh_config - 802.11s mesh configuration
796 * These parameters can be changed while the mesh is active.
798 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
799 * by the Mesh Peering Open message
800 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
801 * used by the Mesh Peering Open message
802 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
803 * the mesh peering management to close a mesh peering
804 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
806 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
807 * be sent to establish a new peer link instance in a mesh
808 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
809 * @element_ttl: the value of TTL field set at a mesh STA for path selection
811 * @auto_open_plinks: whether we should automatically open peer links when we
812 * detect compatible mesh peers
813 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
814 * synchronize to for 11s default synchronization method
815 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
816 * that an originator mesh STA can send to a particular path target
817 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
818 * @min_discovery_timeout: the minimum length of time to wait until giving up on
819 * a path discovery in milliseconds
820 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
821 * receiving a PREQ shall consider the forwarding information from the
822 * root to be valid. (TU = time unit)
823 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
824 * which a mesh STA can send only one action frame containing a PREQ
826 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
827 * which a mesh STA can send only one Action frame containing a PERR
829 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
830 * it takes for an HWMP information element to propagate across the mesh
831 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
832 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
833 * announcements are transmitted
834 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
835 * station has access to a broader network beyond the MBSS. (This is
836 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
837 * only means that the station will announce others it's a mesh gate, but
838 * not necessarily using the gate announcement protocol. Still keeping the
839 * same nomenclature to be in sync with the spec)
840 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
841 * entity (default is TRUE - forwarding entity)
842 * @rssi_threshold: the threshold for average signal strength of candidate
843 * station to establish a peer link
844 * @ht_opmode: mesh HT protection mode
846 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
847 * receiving a proactive PREQ shall consider the forwarding information to
848 * the root mesh STA to be valid.
850 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
851 * PREQs are transmitted.
852 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
853 * during which a mesh STA can send only one Action frame containing
854 * a PREQ element for root path confirmation.
857 u16 dot11MeshRetryTimeout
;
858 u16 dot11MeshConfirmTimeout
;
859 u16 dot11MeshHoldingTimeout
;
860 u16 dot11MeshMaxPeerLinks
;
861 u8 dot11MeshMaxRetries
;
864 bool auto_open_plinks
;
865 u32 dot11MeshNbrOffsetMaxNeighbor
;
866 u8 dot11MeshHWMPmaxPREQretries
;
867 u32 path_refresh_time
;
868 u16 min_discovery_timeout
;
869 u32 dot11MeshHWMPactivePathTimeout
;
870 u16 dot11MeshHWMPpreqMinInterval
;
871 u16 dot11MeshHWMPperrMinInterval
;
872 u16 dot11MeshHWMPnetDiameterTraversalTime
;
873 u8 dot11MeshHWMPRootMode
;
874 u16 dot11MeshHWMPRannInterval
;
875 bool dot11MeshGateAnnouncementProtocol
;
876 bool dot11MeshForwarding
;
879 u32 dot11MeshHWMPactivePathToRootTimeout
;
880 u16 dot11MeshHWMProotInterval
;
881 u16 dot11MeshHWMPconfirmationInterval
;
885 * struct mesh_setup - 802.11s mesh setup configuration
886 * @channel: the channel to start the mesh network on
887 * @channel_type: the channel type to use
888 * @mesh_id: the mesh ID
889 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
890 * @sync_method: which synchronization method to use
891 * @path_sel_proto: which path selection protocol to use
892 * @path_metric: which metric to use
893 * @ie: vendor information elements (optional)
894 * @ie_len: length of vendor information elements
895 * @is_authenticated: this mesh requires authentication
896 * @is_secure: this mesh uses security
897 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
899 * These parameters are fixed when the mesh is created.
902 struct ieee80211_channel
*channel
;
903 enum nl80211_channel_type channel_type
;
911 bool is_authenticated
;
913 int mcast_rate
[IEEE80211_NUM_BANDS
];
917 * struct ieee80211_txq_params - TX queue parameters
919 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
920 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
922 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
924 * @aifs: Arbitration interframe space [0..255]
926 struct ieee80211_txq_params
{
934 /* from net/wireless.h */
938 * DOC: Scanning and BSS list handling
940 * The scanning process itself is fairly simple, but cfg80211 offers quite
941 * a bit of helper functionality. To start a scan, the scan operation will
942 * be invoked with a scan definition. This scan definition contains the
943 * channels to scan, and the SSIDs to send probe requests for (including the
944 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
945 * probe. Additionally, a scan request may contain extra information elements
946 * that should be added to the probe request. The IEs are guaranteed to be
947 * well-formed, and will not exceed the maximum length the driver advertised
948 * in the wiphy structure.
950 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
951 * it is responsible for maintaining the BSS list; the driver should not
952 * maintain a list itself. For this notification, various functions exist.
954 * Since drivers do not maintain a BSS list, there are also a number of
955 * functions to search for a BSS and obtain information about it from the
956 * BSS structure cfg80211 maintains. The BSS list is also made available
961 * struct cfg80211_ssid - SSID description
963 * @ssid_len: length of the ssid
965 struct cfg80211_ssid
{
966 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
971 * struct cfg80211_scan_request - scan request description
973 * @ssids: SSIDs to scan for (active scan only)
974 * @n_ssids: number of SSIDs
975 * @channels: channels to scan on.
976 * @n_channels: total number of channels to scan
977 * @ie: optional information element(s) to add into Probe Request or %NULL
978 * @ie_len: length of ie in octets
979 * @rates: bitmap of rates to advertise for each band
980 * @wiphy: the wiphy this was for
981 * @dev: the interface
982 * @aborted: (internal) scan request was notified as aborted
983 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
985 struct cfg80211_scan_request
{
986 struct cfg80211_ssid
*ssids
;
992 u32 rates
[IEEE80211_NUM_BANDS
];
996 struct net_device
*dev
;
1001 struct ieee80211_channel
*channels
[0];
1005 * struct cfg80211_match_set - sets of attributes to match
1007 * @ssid: SSID to be matched
1009 struct cfg80211_match_set
{
1010 struct cfg80211_ssid ssid
;
1014 * struct cfg80211_sched_scan_request - scheduled scan request description
1016 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1017 * @n_ssids: number of SSIDs
1018 * @n_channels: total number of channels to scan
1019 * @interval: interval between each scheduled scan cycle
1020 * @ie: optional information element(s) to add into Probe Request or %NULL
1021 * @ie_len: length of ie in octets
1022 * @match_sets: sets of parameters to be matched for a scan result
1023 * entry to be considered valid and to be passed to the host
1024 * (others are filtered out).
1025 * If ommited, all results are passed.
1026 * @n_match_sets: number of match sets
1027 * @wiphy: the wiphy this was for
1028 * @dev: the interface
1029 * @channels: channels to scan
1030 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1032 struct cfg80211_sched_scan_request
{
1033 struct cfg80211_ssid
*ssids
;
1039 struct cfg80211_match_set
*match_sets
;
1044 struct wiphy
*wiphy
;
1045 struct net_device
*dev
;
1048 struct ieee80211_channel
*channels
[0];
1052 * enum cfg80211_signal_type - signal type
1054 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1055 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1056 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1058 enum cfg80211_signal_type
{
1059 CFG80211_SIGNAL_TYPE_NONE
,
1060 CFG80211_SIGNAL_TYPE_MBM
,
1061 CFG80211_SIGNAL_TYPE_UNSPEC
,
1065 * struct cfg80211_bss - BSS description
1067 * This structure describes a BSS (which may also be a mesh network)
1068 * for use in scan results and similar.
1070 * @channel: channel this BSS is on
1071 * @bssid: BSSID of the BSS
1072 * @tsf: timestamp of last received update
1073 * @beacon_interval: the beacon interval as from the frame
1074 * @capability: the capability field in host byte order
1075 * @information_elements: the information elements (Note that there
1076 * is no guarantee that these are well-formed!); this is a pointer to
1077 * either the beacon_ies or proberesp_ies depending on whether Probe
1078 * Response frame has been received
1079 * @len_information_elements: total length of the information elements
1080 * @beacon_ies: the information elements from the last Beacon frame
1081 * @len_beacon_ies: total length of the beacon_ies
1082 * @proberesp_ies: the information elements from the last Probe Response frame
1083 * @len_proberesp_ies: total length of the proberesp_ies
1084 * @signal: signal strength value (type depends on the wiphy's signal_type)
1085 * @free_priv: function pointer to free private data
1086 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1088 struct cfg80211_bss
{
1089 struct ieee80211_channel
*channel
;
1093 u16 beacon_interval
;
1095 u8
*information_elements
;
1096 size_t len_information_elements
;
1098 size_t len_beacon_ies
;
1100 size_t len_proberesp_ies
;
1104 void (*free_priv
)(struct cfg80211_bss
*bss
);
1105 u8 priv
[0] __attribute__((__aligned__(sizeof(void *))));
1109 * ieee80211_bss_get_ie - find IE with given ID
1110 * @bss: the bss to search
1112 * Returns %NULL if not found.
1114 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1118 * struct cfg80211_auth_request - Authentication request data
1120 * This structure provides information needed to complete IEEE 802.11
1123 * @bss: The BSS to authenticate with.
1124 * @auth_type: Authentication type (algorithm)
1125 * @ie: Extra IEs to add to Authentication frame or %NULL
1126 * @ie_len: Length of ie buffer in octets
1127 * @key_len: length of WEP key for shared key authentication
1128 * @key_idx: index of WEP key for shared key authentication
1129 * @key: WEP key for shared key authentication
1131 struct cfg80211_auth_request
{
1132 struct cfg80211_bss
*bss
;
1135 enum nl80211_auth_type auth_type
;
1137 u8 key_len
, key_idx
;
1141 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1143 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1145 enum cfg80211_assoc_req_flags
{
1146 ASSOC_REQ_DISABLE_HT
= BIT(0),
1150 * struct cfg80211_assoc_request - (Re)Association request data
1152 * This structure provides information needed to complete IEEE 802.11
1154 * @bss: The BSS to associate with. If the call is successful the driver
1155 * is given a reference that it must release, normally via a call to
1156 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1157 * call to cfg80211_put_bss() (in addition to calling
1158 * cfg80211_send_assoc_timeout())
1159 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1160 * @ie_len: Length of ie buffer in octets
1161 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1162 * @crypto: crypto settings
1163 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1164 * @flags: See &enum cfg80211_assoc_req_flags
1165 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1166 * will be used in ht_capa. Un-supported values will be ignored.
1167 * @ht_capa_mask: The bits of ht_capa which are to be used.
1169 struct cfg80211_assoc_request
{
1170 struct cfg80211_bss
*bss
;
1171 const u8
*ie
, *prev_bssid
;
1173 struct cfg80211_crypto_settings crypto
;
1176 struct ieee80211_ht_cap ht_capa
;
1177 struct ieee80211_ht_cap ht_capa_mask
;
1181 * struct cfg80211_deauth_request - Deauthentication request data
1183 * This structure provides information needed to complete IEEE 802.11
1186 * @bssid: the BSSID of the BSS to deauthenticate from
1187 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1188 * @ie_len: Length of ie buffer in octets
1189 * @reason_code: The reason code for the deauthentication
1191 struct cfg80211_deauth_request
{
1199 * struct cfg80211_disassoc_request - Disassociation request data
1201 * This structure provides information needed to complete IEEE 802.11
1204 * @bss: the BSS to disassociate from
1205 * @ie: Extra IEs to add to Disassociation frame or %NULL
1206 * @ie_len: Length of ie buffer in octets
1207 * @reason_code: The reason code for the disassociation
1208 * @local_state_change: This is a request for a local state only, i.e., no
1209 * Disassociation frame is to be transmitted.
1211 struct cfg80211_disassoc_request
{
1212 struct cfg80211_bss
*bss
;
1216 bool local_state_change
;
1220 * struct cfg80211_ibss_params - IBSS parameters
1222 * This structure defines the IBSS parameters for the join_ibss()
1225 * @ssid: The SSID, will always be non-null.
1226 * @ssid_len: The length of the SSID, will always be non-zero.
1227 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1228 * search for IBSSs with a different BSSID.
1229 * @channel: The channel to use if no IBSS can be found to join.
1230 * @channel_type: channel type (HT mode)
1231 * @channel_fixed: The channel should be fixed -- do not search for
1232 * IBSSs to join on other channels.
1233 * @ie: information element(s) to include in the beacon
1234 * @ie_len: length of that
1235 * @beacon_interval: beacon interval to use
1236 * @privacy: this is a protected network, keys will be configured
1238 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1239 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1240 * required to assume that the port is unauthorized until authorized by
1241 * user space. Otherwise, port is marked authorized by default.
1242 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1243 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1245 struct cfg80211_ibss_params
{
1248 struct ieee80211_channel
*channel
;
1249 enum nl80211_channel_type channel_type
;
1251 u8 ssid_len
, ie_len
;
1252 u16 beacon_interval
;
1257 int mcast_rate
[IEEE80211_NUM_BANDS
];
1261 * struct cfg80211_connect_params - Connection parameters
1263 * This structure provides information needed to complete IEEE 802.11
1264 * authentication and association.
1266 * @channel: The channel to use or %NULL if not specified (auto-select based
1268 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1271 * @ssid_len: Length of ssid in octets
1272 * @auth_type: Authentication type (algorithm)
1273 * @ie: IEs for association request
1274 * @ie_len: Length of assoc_ie in octets
1275 * @privacy: indicates whether privacy-enabled APs should be used
1276 * @crypto: crypto settings
1277 * @key_len: length of WEP key for shared key authentication
1278 * @key_idx: index of WEP key for shared key authentication
1279 * @key: WEP key for shared key authentication
1280 * @flags: See &enum cfg80211_assoc_req_flags
1281 * @bg_scan_period: Background scan period in seconds
1282 * or -1 to indicate that default value is to be used.
1283 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1284 * will be used in ht_capa. Un-supported values will be ignored.
1285 * @ht_capa_mask: The bits of ht_capa which are to be used.
1287 struct cfg80211_connect_params
{
1288 struct ieee80211_channel
*channel
;
1292 enum nl80211_auth_type auth_type
;
1296 struct cfg80211_crypto_settings crypto
;
1298 u8 key_len
, key_idx
;
1301 struct ieee80211_ht_cap ht_capa
;
1302 struct ieee80211_ht_cap ht_capa_mask
;
1306 * enum wiphy_params_flags - set_wiphy_params bitfield values
1307 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1308 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1309 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1310 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1311 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1313 enum wiphy_params_flags
{
1314 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1315 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1316 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1317 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1318 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1322 * cfg80211_bitrate_mask - masks for bitrate control
1324 struct cfg80211_bitrate_mask
{
1327 u8 mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1328 } control
[IEEE80211_NUM_BANDS
];
1331 * struct cfg80211_pmksa - PMK Security Association
1333 * This structure is passed to the set/del_pmksa() method for PMKSA
1336 * @bssid: The AP's BSSID.
1337 * @pmkid: The PMK material itself.
1339 struct cfg80211_pmksa
{
1345 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1346 * @mask: bitmask where to match pattern and where to ignore bytes,
1347 * one bit per byte, in same format as nl80211
1348 * @pattern: bytes to match where bitmask is 1
1349 * @pattern_len: length of pattern (in bytes)
1351 * Internal note: @mask and @pattern are allocated in one chunk of
1352 * memory, free @mask only!
1354 struct cfg80211_wowlan_trig_pkt_pattern
{
1360 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1362 * This structure defines the enabled WoWLAN triggers for the device.
1363 * @any: wake up on any activity -- special trigger if device continues
1364 * operating as normal during suspend
1365 * @disconnect: wake up if getting disconnected
1366 * @magic_pkt: wake up on receiving magic packet
1367 * @patterns: wake up on receiving packet matching a pattern
1368 * @n_patterns: number of patterns
1369 * @gtk_rekey_failure: wake up on GTK rekey failure
1370 * @eap_identity_req: wake up on EAP identity request packet
1371 * @four_way_handshake: wake up on 4-way handshake
1372 * @rfkill_release: wake up when rfkill is released
1374 struct cfg80211_wowlan
{
1375 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1376 eap_identity_req
, four_way_handshake
,
1378 struct cfg80211_wowlan_trig_pkt_pattern
*patterns
;
1383 * struct cfg80211_gtk_rekey_data - rekey data
1384 * @kek: key encryption key
1385 * @kck: key confirmation key
1386 * @replay_ctr: replay counter
1388 struct cfg80211_gtk_rekey_data
{
1389 u8 kek
[NL80211_KEK_LEN
];
1390 u8 kck
[NL80211_KCK_LEN
];
1391 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1395 * struct cfg80211_ops - backend description for wireless configuration
1397 * This struct is registered by fullmac card drivers and/or wireless stacks
1398 * in order to handle configuration requests on their interfaces.
1400 * All callbacks except where otherwise noted should return 0
1401 * on success or a negative error code.
1403 * All operations are currently invoked under rtnl for consistency with the
1404 * wireless extensions but this is subject to reevaluation as soon as this
1405 * code is used more widely and we have a first user without wext.
1407 * @suspend: wiphy device needs to be suspended. The variable @wow will
1408 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1409 * configured for the device.
1410 * @resume: wiphy device needs to be resumed
1411 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1412 * to call device_set_wakeup_enable() to enable/disable wakeup from
1415 * @add_virtual_intf: create a new virtual interface with the given name,
1416 * must set the struct wireless_dev's iftype. Beware: You must create
1417 * the new netdev in the wiphy's network namespace! Returns the netdev,
1420 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1422 * @change_virtual_intf: change type/configuration of virtual interface,
1423 * keep the struct wireless_dev's iftype updated.
1425 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1426 * when adding a group key.
1428 * @get_key: get information about the key with the given parameters.
1429 * @mac_addr will be %NULL when requesting information for a group
1430 * key. All pointers given to the @callback function need not be valid
1431 * after it returns. This function should return an error if it is
1432 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1434 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1435 * and @key_index, return -ENOENT if the key doesn't exist.
1437 * @set_default_key: set the default key on an interface
1439 * @set_default_mgmt_key: set the default management frame key on an interface
1441 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1443 * @start_ap: Start acting in AP mode defined by the parameters.
1444 * @change_beacon: Change the beacon parameters for an access point mode
1445 * interface. This should reject the call when AP mode wasn't started.
1446 * @stop_ap: Stop being an AP, including stopping beaconing.
1448 * @add_station: Add a new station.
1449 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1450 * @change_station: Modify a given station. Note that flags changes are not much
1451 * validated in cfg80211, in particular the auth/assoc/authorized flags
1452 * might come to the driver in invalid combinations -- make sure to check
1453 * them, also against the existing state! Also, supported_rates changes are
1454 * not checked in station mode -- drivers need to reject (or ignore) them
1455 * for anything but TDLS peers.
1456 * @get_station: get station information for the station identified by @mac
1457 * @dump_station: dump station callback -- resume dump at index @idx
1459 * @add_mpath: add a fixed mesh path
1460 * @del_mpath: delete a given mesh path
1461 * @change_mpath: change a given mesh path
1462 * @get_mpath: get a mesh path for the given parameters
1463 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1464 * @join_mesh: join the mesh network with the specified parameters
1465 * @leave_mesh: leave the current mesh network
1467 * @get_mesh_config: Get the current mesh configuration
1469 * @update_mesh_config: Update mesh parameters on a running mesh.
1470 * The mask is a bitfield which tells us which parameters to
1471 * set, and which to leave alone.
1473 * @change_bss: Modify parameters for a given BSS.
1475 * @set_txq_params: Set TX queue parameters
1477 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1478 * as it doesn't implement join_mesh and needs to set the channel to
1479 * join the mesh instead.
1481 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1482 * interfaces are active this callback should reject the configuration.
1483 * If no interfaces are active or the device is down, the channel should
1484 * be stored for when a monitor interface becomes active.
1485 * @get_channel: Get the current operating channel, should return %NULL if
1486 * there's no single defined operating channel if for example the
1487 * device implements channel hopping for multi-channel virtual interfaces.
1489 * @scan: Request to do a scan. If returning zero, the scan request is given
1490 * the driver, and will be valid until passed to cfg80211_scan_done().
1491 * For scan results, call cfg80211_inform_bss(); you can call this outside
1492 * the scan/scan_done bracket too.
1494 * @auth: Request to authenticate with the specified peer
1495 * @assoc: Request to (re)associate with the specified peer
1496 * @deauth: Request to deauthenticate from the specified peer
1497 * @disassoc: Request to disassociate from the specified peer
1499 * @connect: Connect to the ESS with the specified parameters. When connected,
1500 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1501 * If the connection fails for some reason, call cfg80211_connect_result()
1502 * with the status from the AP.
1503 * @disconnect: Disconnect from the BSS/ESS.
1505 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1506 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1508 * @leave_ibss: Leave the IBSS.
1510 * @set_wiphy_params: Notify that wiphy parameters have changed;
1511 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1512 * have changed. The actual parameter values are available in
1513 * struct wiphy. If returning an error, no value should be changed.
1515 * @set_tx_power: set the transmit power according to the parameters,
1516 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1517 * @get_tx_power: store the current TX power into the dbm variable;
1518 * return 0 if successful
1520 * @set_wds_peer: set the WDS peer for a WDS interface
1522 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1523 * functions to adjust rfkill hw state
1525 * @dump_survey: get site survey information.
1527 * @remain_on_channel: Request the driver to remain awake on the specified
1528 * channel for the specified duration to complete an off-channel
1529 * operation (e.g., public action frame exchange). When the driver is
1530 * ready on the requested channel, it must indicate this with an event
1531 * notification by calling cfg80211_ready_on_channel().
1532 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1533 * This allows the operation to be terminated prior to timeout based on
1534 * the duration value.
1535 * @mgmt_tx: Transmit a management frame.
1536 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1537 * frame on another channel
1539 * @testmode_cmd: run a test mode command
1540 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1541 * used by the function, but 0 and 1 must not be touched. Additionally,
1542 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1543 * dump and return to userspace with an error, so be careful. If any data
1544 * was passed in from userspace then the data/len arguments will be present
1545 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1547 * @set_bitrate_mask: set the bitrate mask configuration
1549 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1550 * devices running firmwares capable of generating the (re) association
1551 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1552 * @del_pmksa: Delete a cached PMKID.
1553 * @flush_pmksa: Flush all cached PMKIDs.
1554 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1555 * allows the driver to adjust the dynamic ps timeout value.
1556 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1557 * @sched_scan_start: Tell the driver to start a scheduled scan.
1558 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1559 * scan. The driver_initiated flag specifies whether the driver
1560 * itself has informed that the scan has stopped.
1562 * @mgmt_frame_register: Notify driver that a management frame type was
1563 * registered. Note that this callback may not sleep, and cannot run
1564 * concurrently with itself.
1566 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1567 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1568 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1569 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1571 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1573 * @set_ringparam: Set tx and rx ring sizes.
1575 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1577 * @tdls_mgmt: Transmit a TDLS management frame.
1578 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1580 * @probe_client: probe an associated client, must return a cookie that it
1581 * later passes to cfg80211_probe_status().
1583 * @set_noack_map: Set the NoAck Map for the TIDs.
1585 * @get_et_sset_count: Ethtool API to get string-set count.
1586 * See @ethtool_ops.get_sset_count
1588 * @get_et_stats: Ethtool API to get a set of u64 stats.
1589 * See @ethtool_ops.get_ethtool_stats
1591 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1592 * and perhaps other supported types of ethtool data-sets.
1593 * See @ethtool_ops.get_strings
1595 struct cfg80211_ops
{
1596 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
1597 int (*resume
)(struct wiphy
*wiphy
);
1598 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
1600 struct net_device
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
1602 enum nl80211_iftype type
,
1604 struct vif_params
*params
);
1605 int (*del_virtual_intf
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1606 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
1607 struct net_device
*dev
,
1608 enum nl80211_iftype type
, u32
*flags
,
1609 struct vif_params
*params
);
1611 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1612 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1613 struct key_params
*params
);
1614 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1615 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1617 void (*callback
)(void *cookie
, struct key_params
*));
1618 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1619 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
1620 int (*set_default_key
)(struct wiphy
*wiphy
,
1621 struct net_device
*netdev
,
1622 u8 key_index
, bool unicast
, bool multicast
);
1623 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
1624 struct net_device
*netdev
,
1627 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1628 struct cfg80211_ap_settings
*settings
);
1629 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1630 struct cfg80211_beacon_data
*info
);
1631 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1634 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1635 u8
*mac
, struct station_parameters
*params
);
1636 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1638 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1639 u8
*mac
, struct station_parameters
*params
);
1640 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1641 u8
*mac
, struct station_info
*sinfo
);
1642 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1643 int idx
, u8
*mac
, struct station_info
*sinfo
);
1645 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1646 u8
*dst
, u8
*next_hop
);
1647 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1649 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1650 u8
*dst
, u8
*next_hop
);
1651 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1652 u8
*dst
, u8
*next_hop
,
1653 struct mpath_info
*pinfo
);
1654 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1655 int idx
, u8
*dst
, u8
*next_hop
,
1656 struct mpath_info
*pinfo
);
1657 int (*get_mesh_config
)(struct wiphy
*wiphy
,
1658 struct net_device
*dev
,
1659 struct mesh_config
*conf
);
1660 int (*update_mesh_config
)(struct wiphy
*wiphy
,
1661 struct net_device
*dev
, u32 mask
,
1662 const struct mesh_config
*nconf
);
1663 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1664 const struct mesh_config
*conf
,
1665 const struct mesh_setup
*setup
);
1666 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1668 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1669 struct bss_parameters
*params
);
1671 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1672 struct ieee80211_txq_params
*params
);
1674 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
1675 struct net_device
*dev
,
1676 struct ieee80211_channel
*chan
);
1678 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
1679 struct ieee80211_channel
*chan
,
1680 enum nl80211_channel_type channel_type
);
1682 int (*scan
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1683 struct cfg80211_scan_request
*request
);
1685 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1686 struct cfg80211_auth_request
*req
);
1687 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1688 struct cfg80211_assoc_request
*req
);
1689 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1690 struct cfg80211_deauth_request
*req
);
1691 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1692 struct cfg80211_disassoc_request
*req
);
1694 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1695 struct cfg80211_connect_params
*sme
);
1696 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1699 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1700 struct cfg80211_ibss_params
*params
);
1701 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1703 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
1705 int (*set_tx_power
)(struct wiphy
*wiphy
,
1706 enum nl80211_tx_power_setting type
, int mbm
);
1707 int (*get_tx_power
)(struct wiphy
*wiphy
, int *dbm
);
1709 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1712 void (*rfkill_poll
)(struct wiphy
*wiphy
);
1714 #ifdef CONFIG_NL80211_TESTMODE
1715 int (*testmode_cmd
)(struct wiphy
*wiphy
, void *data
, int len
);
1716 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
1717 struct netlink_callback
*cb
,
1718 void *data
, int len
);
1721 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
1722 struct net_device
*dev
,
1724 const struct cfg80211_bitrate_mask
*mask
);
1726 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1727 int idx
, struct survey_info
*info
);
1729 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1730 struct cfg80211_pmksa
*pmksa
);
1731 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1732 struct cfg80211_pmksa
*pmksa
);
1733 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
1735 int (*remain_on_channel
)(struct wiphy
*wiphy
,
1736 struct net_device
*dev
,
1737 struct ieee80211_channel
*chan
,
1738 enum nl80211_channel_type channel_type
,
1739 unsigned int duration
,
1741 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
1742 struct net_device
*dev
,
1745 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1746 struct ieee80211_channel
*chan
, bool offchan
,
1747 enum nl80211_channel_type channel_type
,
1748 bool channel_type_valid
, unsigned int wait
,
1749 const u8
*buf
, size_t len
, bool no_cck
,
1750 bool dont_wait_for_ack
, u64
*cookie
);
1751 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
1752 struct net_device
*dev
,
1755 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1756 bool enabled
, int timeout
);
1758 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
1759 struct net_device
*dev
,
1760 s32 rssi_thold
, u32 rssi_hyst
);
1762 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
1763 struct net_device
*dev
,
1764 u16 frame_type
, bool reg
);
1766 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
1767 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
1769 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
1770 void (*get_ringparam
)(struct wiphy
*wiphy
,
1771 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
1773 int (*sched_scan_start
)(struct wiphy
*wiphy
,
1774 struct net_device
*dev
,
1775 struct cfg80211_sched_scan_request
*request
);
1776 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1778 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1779 struct cfg80211_gtk_rekey_data
*data
);
1781 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1782 u8
*peer
, u8 action_code
, u8 dialog_token
,
1783 u16 status_code
, const u8
*buf
, size_t len
);
1784 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1785 u8
*peer
, enum nl80211_tdls_operation oper
);
1787 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1788 const u8
*peer
, u64
*cookie
);
1790 int (*set_noack_map
)(struct wiphy
*wiphy
,
1791 struct net_device
*dev
,
1794 struct ieee80211_channel
*(*get_channel
)(struct wiphy
*wiphy
,
1795 enum nl80211_channel_type
*type
);
1797 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
1798 struct net_device
*dev
, int sset
);
1799 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1800 struct ethtool_stats
*stats
, u64
*data
);
1801 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1802 u32 sset
, u8
*data
);
1806 * wireless hardware and networking interfaces structures
1807 * and registration/helper functions
1811 * enum wiphy_flags - wiphy capability flags
1813 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1814 * has its own custom regulatory domain and cannot identify the
1815 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1816 * we will disregard the first regulatory hint (when the
1817 * initiator is %REGDOM_SET_BY_CORE).
1818 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1819 * ignore regulatory domain settings until it gets its own regulatory
1820 * domain via its regulatory_hint() unless the regulatory hint is
1821 * from a country IE. After its gets its own regulatory domain it will
1822 * only allow further regulatory domain settings to further enhance
1823 * compliance. For example if channel 13 and 14 are disabled by this
1824 * regulatory domain no user regulatory domain can enable these channels
1825 * at a later time. This can be used for devices which do not have
1826 * calibration information guaranteed for frequencies or settings
1827 * outside of its regulatory domain. If used in combination with
1828 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1830 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1831 * that passive scan flags and beaconing flags may not be lifted by
1832 * cfg80211 due to regulatory beacon hints. For more information on beacon
1833 * hints read the documenation for regulatory_hint_found_beacon()
1834 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1836 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1837 * by default -- this flag will be set depending on the kernel's default
1838 * on wiphy_new(), but can be changed by the driver if it has a good
1839 * reason to override the default
1840 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1841 * on a VLAN interface)
1842 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1843 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1844 * control port protocol ethertype. The device also honours the
1845 * control_port_no_encrypt flag.
1846 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1847 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1848 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1849 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1850 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1852 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1853 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1854 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1855 * link setup/discovery operations internally. Setup, discovery and
1856 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1857 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1858 * used for asking the driver/firmware to perform a TDLS operation.
1859 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1860 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1861 * when there are virtual interfaces in AP mode by calling
1862 * cfg80211_report_obss_beacon().
1863 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1864 * responds to probe-requests in hardware.
1865 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1866 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1869 WIPHY_FLAG_CUSTOM_REGULATORY
= BIT(0),
1870 WIPHY_FLAG_STRICT_REGULATORY
= BIT(1),
1871 WIPHY_FLAG_DISABLE_BEACON_HINTS
= BIT(2),
1872 WIPHY_FLAG_NETNS_OK
= BIT(3),
1873 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
1874 WIPHY_FLAG_4ADDR_AP
= BIT(5),
1875 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
1876 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
1877 WIPHY_FLAG_IBSS_RSN
= BIT(8),
1878 WIPHY_FLAG_MESH_AUTH
= BIT(10),
1879 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
1880 /* use hole at 12 */
1881 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
1882 WIPHY_FLAG_AP_UAPSD
= BIT(14),
1883 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
1884 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
1885 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
1886 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
1887 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
1888 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
1889 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
1893 * struct ieee80211_iface_limit - limit on certain interface types
1894 * @max: maximum number of interfaces of these types
1895 * @types: interface types (bits)
1897 struct ieee80211_iface_limit
{
1903 * struct ieee80211_iface_combination - possible interface combination
1904 * @limits: limits for the given interface types
1905 * @n_limits: number of limitations
1906 * @num_different_channels: can use up to this many different channels
1907 * @max_interfaces: maximum number of interfaces in total allowed in this
1909 * @beacon_int_infra_match: In this combination, the beacon intervals
1910 * between infrastructure and AP types must match. This is required
1911 * only in special cases.
1913 * These examples can be expressed as follows:
1915 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1917 * struct ieee80211_iface_limit limits1[] = {
1918 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1919 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1921 * struct ieee80211_iface_combination combination1 = {
1922 * .limits = limits1,
1923 * .n_limits = ARRAY_SIZE(limits1),
1924 * .max_interfaces = 2,
1925 * .beacon_int_infra_match = true,
1929 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1931 * struct ieee80211_iface_limit limits2[] = {
1932 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1933 * BIT(NL80211_IFTYPE_P2P_GO), },
1935 * struct ieee80211_iface_combination combination2 = {
1936 * .limits = limits2,
1937 * .n_limits = ARRAY_SIZE(limits2),
1938 * .max_interfaces = 8,
1939 * .num_different_channels = 1,
1943 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1944 * This allows for an infrastructure connection and three P2P connections.
1946 * struct ieee80211_iface_limit limits3[] = {
1947 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1948 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1949 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1951 * struct ieee80211_iface_combination combination3 = {
1952 * .limits = limits3,
1953 * .n_limits = ARRAY_SIZE(limits3),
1954 * .max_interfaces = 4,
1955 * .num_different_channels = 2,
1958 struct ieee80211_iface_combination
{
1959 const struct ieee80211_iface_limit
*limits
;
1960 u32 num_different_channels
;
1963 bool beacon_int_infra_match
;
1966 struct mac_address
{
1970 struct ieee80211_txrx_stypes
{
1975 * enum wiphy_wowlan_support_flags - WoWLAN support flags
1976 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
1977 * trigger that keeps the device operating as-is and
1978 * wakes up the host on any activity, for example a
1979 * received packet that passed filtering; note that the
1980 * packet should be preserved in that case
1981 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
1983 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
1984 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
1985 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
1986 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
1987 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
1988 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
1990 enum wiphy_wowlan_support_flags
{
1991 WIPHY_WOWLAN_ANY
= BIT(0),
1992 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
1993 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
1994 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
1995 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
1996 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
1997 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
1998 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2002 * struct wiphy_wowlan_support - WoWLAN support data
2003 * @flags: see &enum wiphy_wowlan_support_flags
2004 * @n_patterns: number of supported wakeup patterns
2005 * (see nl80211.h for the pattern definition)
2006 * @pattern_max_len: maximum length of each pattern
2007 * @pattern_min_len: minimum length of each pattern
2009 struct wiphy_wowlan_support
{
2012 int pattern_max_len
;
2013 int pattern_min_len
;
2017 * struct wiphy - wireless hardware description
2018 * @reg_notifier: the driver's regulatory notification callback,
2019 * note that if your driver uses wiphy_apply_custom_regulatory()
2020 * the reg_notifier's request can be passed as NULL
2021 * @regd: the driver's regulatory domain, if one was requested via
2022 * the regulatory_hint() API. This can be used by the driver
2023 * on the reg_notifier() if it chooses to ignore future
2024 * regulatory domain changes caused by other drivers.
2025 * @signal_type: signal type reported in &struct cfg80211_bss.
2026 * @cipher_suites: supported cipher suites
2027 * @n_cipher_suites: number of supported cipher suites
2028 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2029 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2030 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2031 * -1 = fragmentation disabled, only odd values >= 256 used
2032 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2033 * @_net: the network namespace this wiphy currently lives in
2034 * @perm_addr: permanent MAC address of this device
2035 * @addr_mask: If the device supports multiple MAC addresses by masking,
2036 * set this to a mask with variable bits set to 1, e.g. if the last
2037 * four bits are variable then set it to 00:...:00:0f. The actual
2038 * variable bits shall be determined by the interfaces added, with
2039 * interfaces not matching the mask being rejected to be brought up.
2040 * @n_addresses: number of addresses in @addresses.
2041 * @addresses: If the device has more than one address, set this pointer
2042 * to a list of addresses (6 bytes each). The first one will be used
2043 * by default for perm_addr. In this case, the mask should be set to
2044 * all-zeroes. In this case it is assumed that the device can handle
2045 * the same number of arbitrary MAC addresses.
2046 * @registered: protects ->resume and ->suspend sysfs callbacks against
2047 * unregister hardware
2048 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2049 * automatically on wiphy renames
2050 * @dev: (virtual) struct device for this wiphy
2051 * @registered: helps synchronize suspend/resume with wiphy unregister
2052 * @wext: wireless extension handlers
2053 * @priv: driver private data (sized according to wiphy_new() parameter)
2054 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2055 * must be set by driver
2056 * @iface_combinations: Valid interface combinations array, should not
2057 * list single interface types.
2058 * @n_iface_combinations: number of entries in @iface_combinations array.
2059 * @software_iftypes: bitmask of software interface types, these are not
2060 * subject to any restrictions since they are purely managed in SW.
2061 * @flags: wiphy flags, see &enum wiphy_flags
2062 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2063 * @bss_priv_size: each BSS struct has private data allocated with it,
2064 * this variable determines its size
2065 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2067 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2068 * for in any given scheduled scan
2069 * @max_match_sets: maximum number of match sets the device can handle
2070 * when performing a scheduled scan, 0 if filtering is not
2072 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2073 * add to probe request frames transmitted during a scan, must not
2074 * include fixed IEs like supported rates
2075 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2077 * @coverage_class: current coverage class
2078 * @fw_version: firmware version for ethtool reporting
2079 * @hw_version: hardware version for ethtool reporting
2080 * @max_num_pmkids: maximum number of PMKIDs supported by device
2081 * @privid: a pointer that drivers can use to identify if an arbitrary
2082 * wiphy is theirs, e.g. in global notifiers
2083 * @bands: information about bands/channels supported by this device
2085 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2086 * transmitted through nl80211, points to an array indexed by interface
2089 * @available_antennas_tx: bitmap of antennas which are available to be
2090 * configured as TX antennas. Antenna configuration commands will be
2091 * rejected unless this or @available_antennas_rx is set.
2093 * @available_antennas_rx: bitmap of antennas which are available to be
2094 * configured as RX antennas. Antenna configuration commands will be
2095 * rejected unless this or @available_antennas_tx is set.
2097 * @probe_resp_offload:
2098 * Bitmap of supported protocols for probe response offloading.
2099 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2100 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2102 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2103 * may request, if implemented.
2105 * @wowlan: WoWLAN support information
2107 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2108 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2109 * If null, then none can be over-ridden.
2112 /* assign these fields before you register the wiphy */
2114 /* permanent MAC address(es) */
2115 u8 perm_addr
[ETH_ALEN
];
2116 u8 addr_mask
[ETH_ALEN
];
2118 struct mac_address
*addresses
;
2120 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2122 const struct ieee80211_iface_combination
*iface_combinations
;
2123 int n_iface_combinations
;
2124 u16 software_iftypes
;
2128 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2129 u16 interface_modes
;
2131 u32 flags
, features
;
2135 enum cfg80211_signal_type signal_type
;
2139 u8 max_sched_scan_ssids
;
2141 u16 max_scan_ie_len
;
2142 u16 max_sched_scan_ie_len
;
2144 int n_cipher_suites
;
2145 const u32
*cipher_suites
;
2153 char fw_version
[ETHTOOL_BUSINFO_LEN
];
2156 struct wiphy_wowlan_support wowlan
;
2158 u16 max_remain_on_channel_duration
;
2162 u32 available_antennas_tx
;
2163 u32 available_antennas_rx
;
2166 * Bitmap of supported protocols for probe response offloading
2167 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2168 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2170 u32 probe_resp_offload
;
2172 /* If multiple wiphys are registered and you're handed e.g.
2173 * a regular netdev with assigned ieee80211_ptr, you won't
2174 * know whether it points to a wiphy your driver has registered
2175 * or not. Assign this to something global to your driver to
2176 * help determine whether you own this wiphy or not. */
2179 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
2181 /* Lets us get back the wiphy on the callback */
2182 int (*reg_notifier
)(struct wiphy
*wiphy
,
2183 struct regulatory_request
*request
);
2185 /* fields below are read-only, assigned by cfg80211 */
2187 const struct ieee80211_regdomain
*regd
;
2189 /* the item in /sys/class/ieee80211/ points to this,
2190 * you need use set_wiphy_dev() (see below) */
2193 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2196 /* dir in debugfs: ieee80211/<wiphyname> */
2197 struct dentry
*debugfsdir
;
2199 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
2201 #ifdef CONFIG_NET_NS
2202 /* the network namespace this phy lives in currently */
2206 #ifdef CONFIG_CFG80211_WEXT
2207 const struct iw_handler_def
*wext
;
2210 char priv
[0] __attribute__((__aligned__(NETDEV_ALIGN
)));
2213 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
2215 return read_pnet(&wiphy
->_net
);
2218 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
2220 write_pnet(&wiphy
->_net
, net
);
2224 * wiphy_priv - return priv from wiphy
2226 * @wiphy: the wiphy whose priv pointer to return
2228 static inline void *wiphy_priv(struct wiphy
*wiphy
)
2231 return &wiphy
->priv
;
2235 * priv_to_wiphy - return the wiphy containing the priv
2237 * @priv: a pointer previously returned by wiphy_priv
2239 static inline struct wiphy
*priv_to_wiphy(void *priv
)
2242 return container_of(priv
, struct wiphy
, priv
);
2246 * set_wiphy_dev - set device pointer for wiphy
2248 * @wiphy: The wiphy whose device to bind
2249 * @dev: The device to parent it to
2251 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
2253 wiphy
->dev
.parent
= dev
;
2257 * wiphy_dev - get wiphy dev pointer
2259 * @wiphy: The wiphy whose device struct to look up
2261 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
2263 return wiphy
->dev
.parent
;
2267 * wiphy_name - get wiphy name
2269 * @wiphy: The wiphy whose name to return
2271 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
2273 return dev_name(&wiphy
->dev
);
2277 * wiphy_new - create a new wiphy for use with cfg80211
2279 * @ops: The configuration operations for this device
2280 * @sizeof_priv: The size of the private area to allocate
2282 * Create a new wiphy and associate the given operations with it.
2283 * @sizeof_priv bytes are allocated for private use.
2285 * The returned pointer must be assigned to each netdev's
2286 * ieee80211_ptr for proper operation.
2288 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
2291 * wiphy_register - register a wiphy with cfg80211
2293 * @wiphy: The wiphy to register.
2295 * Returns a non-negative wiphy index or a negative error code.
2297 extern int wiphy_register(struct wiphy
*wiphy
);
2300 * wiphy_unregister - deregister a wiphy from cfg80211
2302 * @wiphy: The wiphy to unregister.
2304 * After this call, no more requests can be made with this priv
2305 * pointer, but the call may sleep to wait for an outstanding
2306 * request that is being handled.
2308 extern void wiphy_unregister(struct wiphy
*wiphy
);
2311 * wiphy_free - free wiphy
2313 * @wiphy: The wiphy to free
2315 extern void wiphy_free(struct wiphy
*wiphy
);
2317 /* internal structs */
2318 struct cfg80211_conn
;
2319 struct cfg80211_internal_bss
;
2320 struct cfg80211_cached_keys
;
2323 * struct wireless_dev - wireless per-netdev state
2325 * This structure must be allocated by the driver/stack
2326 * that uses the ieee80211_ptr field in struct net_device
2327 * (this is intentional so it can be allocated along with
2330 * @wiphy: pointer to hardware description
2331 * @iftype: interface type
2332 * @list: (private) Used to collect the interfaces
2333 * @netdev: (private) Used to reference back to the netdev
2334 * @current_bss: (private) Used by the internal configuration code
2335 * @channel: (private) Used by the internal configuration code to track
2336 * the user-set AP, monitor and WDS channel
2337 * @preset_chan: (private) Used by the internal configuration code to
2338 * track the channel to be used for AP later
2339 * @preset_chantype: (private) the corresponding channel type
2340 * @bssid: (private) Used by the internal configuration code
2341 * @ssid: (private) Used by the internal configuration code
2342 * @ssid_len: (private) Used by the internal configuration code
2343 * @mesh_id_len: (private) Used by the internal configuration code
2344 * @mesh_id_up_len: (private) Used by the internal configuration code
2345 * @wext: (private) Used by the internal wireless extensions compat code
2346 * @use_4addr: indicates 4addr mode is used on this interface, must be
2347 * set by driver (if supported) on add_interface BEFORE registering the
2348 * netdev and may otherwise be used by driver read-only, will be update
2349 * by cfg80211 on change_interface
2350 * @mgmt_registrations: list of registrations for management frames
2351 * @mgmt_registrations_lock: lock for the list
2352 * @mtx: mutex used to lock data in this struct
2353 * @cleanup_work: work struct used for cleanup that can't be done directly
2354 * @beacon_interval: beacon interval used on this device for transmitting
2355 * beacons, 0 when not valid
2357 struct wireless_dev
{
2358 struct wiphy
*wiphy
;
2359 enum nl80211_iftype iftype
;
2361 /* the remainder of this struct should be private to cfg80211 */
2362 struct list_head list
;
2363 struct net_device
*netdev
;
2365 struct list_head mgmt_registrations
;
2366 spinlock_t mgmt_registrations_lock
;
2370 struct work_struct cleanup_work
;
2374 /* currently used for IBSS and SME - might be rearranged later */
2375 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2376 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
2379 CFG80211_SME_CONNECTING
,
2380 CFG80211_SME_CONNECTED
,
2382 struct cfg80211_conn
*conn
;
2383 struct cfg80211_cached_keys
*connect_keys
;
2385 struct list_head event_list
;
2386 spinlock_t event_lock
;
2388 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
2389 struct ieee80211_channel
*preset_chan
;
2390 enum nl80211_channel_type preset_chantype
;
2395 int beacon_interval
;
2397 u32 ap_unexpected_nlpid
;
2399 #ifdef CONFIG_CFG80211_WEXT
2402 struct cfg80211_ibss_params ibss
;
2403 struct cfg80211_connect_params connect
;
2404 struct cfg80211_cached_keys
*keys
;
2407 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
2408 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2409 s8 default_key
, default_mgmt_key
;
2410 bool prev_bssid_valid
;
2416 * wdev_priv - return wiphy priv from wireless_dev
2418 * @wdev: The wireless device whose wiphy's priv pointer to return
2420 static inline void *wdev_priv(struct wireless_dev
*wdev
)
2423 return wiphy_priv(wdev
->wiphy
);
2427 * DOC: Utility functions
2429 * cfg80211 offers a number of utility functions that can be useful.
2433 * ieee80211_channel_to_frequency - convert channel number to frequency
2434 * @chan: channel number
2435 * @band: band, necessary due to channel number overlap
2437 extern int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
2440 * ieee80211_frequency_to_channel - convert frequency to channel number
2441 * @freq: center frequency
2443 extern int ieee80211_frequency_to_channel(int freq
);
2446 * Name indirection necessary because the ieee80211 code also has
2447 * a function named "ieee80211_get_channel", so if you include
2448 * cfg80211's header file you get cfg80211's version, if you try
2449 * to include both header files you'll (rightfully!) get a symbol
2452 extern struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
2455 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2456 * @wiphy: the struct wiphy to get the channel for
2457 * @freq: the center frequency of the channel
2459 static inline struct ieee80211_channel
*
2460 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
2462 return __ieee80211_get_channel(wiphy
, freq
);
2466 * ieee80211_get_response_rate - get basic rate for a given rate
2468 * @sband: the band to look for rates in
2469 * @basic_rates: bitmap of basic rates
2470 * @bitrate: the bitrate for which to find the basic rate
2472 * This function returns the basic rate corresponding to a given
2473 * bitrate, that is the next lower bitrate contained in the basic
2474 * rate map, which is, for this function, given as a bitmap of
2475 * indices of rates in the band's bitrate table.
2477 struct ieee80211_rate
*
2478 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
2479 u32 basic_rates
, int bitrate
);
2482 * Radiotap parsing functions -- for controlled injection support
2484 * Implemented in net/wireless/radiotap.c
2485 * Documentation in Documentation/networking/radiotap-headers.txt
2488 struct radiotap_align_size
{
2489 uint8_t align
:4, size
:4;
2492 struct ieee80211_radiotap_namespace
{
2493 const struct radiotap_align_size
*align_size
;
2499 struct ieee80211_radiotap_vendor_namespaces
{
2500 const struct ieee80211_radiotap_namespace
*ns
;
2505 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2506 * @this_arg_index: index of current arg, valid after each successful call
2507 * to ieee80211_radiotap_iterator_next()
2508 * @this_arg: pointer to current radiotap arg; it is valid after each
2509 * call to ieee80211_radiotap_iterator_next() but also after
2510 * ieee80211_radiotap_iterator_init() where it will point to
2511 * the beginning of the actual data portion
2512 * @this_arg_size: length of the current arg, for convenience
2513 * @current_namespace: pointer to the current namespace definition
2514 * (or internally %NULL if the current namespace is unknown)
2515 * @is_radiotap_ns: indicates whether the current namespace is the default
2516 * radiotap namespace or not
2518 * @_rtheader: pointer to the radiotap header we are walking through
2519 * @_max_length: length of radiotap header in cpu byte ordering
2520 * @_arg_index: next argument index
2521 * @_arg: next argument pointer
2522 * @_next_bitmap: internal pointer to next present u32
2523 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2524 * @_vns: vendor namespace definitions
2525 * @_next_ns_data: beginning of the next namespace's data
2526 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2529 * Describes the radiotap parser state. Fields prefixed with an underscore
2530 * must not be used by users of the parser, only by the parser internally.
2533 struct ieee80211_radiotap_iterator
{
2534 struct ieee80211_radiotap_header
*_rtheader
;
2535 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
2536 const struct ieee80211_radiotap_namespace
*current_namespace
;
2538 unsigned char *_arg
, *_next_ns_data
;
2539 __le32
*_next_bitmap
;
2541 unsigned char *this_arg
;
2549 uint32_t _bitmap_shifter
;
2553 extern int ieee80211_radiotap_iterator_init(
2554 struct ieee80211_radiotap_iterator
*iterator
,
2555 struct ieee80211_radiotap_header
*radiotap_header
,
2556 int max_length
, const struct ieee80211_radiotap_vendor_namespaces
*vns
);
2558 extern int ieee80211_radiotap_iterator_next(
2559 struct ieee80211_radiotap_iterator
*iterator
);
2562 extern const unsigned char rfc1042_header
[6];
2563 extern const unsigned char bridge_tunnel_header
[6];
2566 * ieee80211_get_hdrlen_from_skb - get header length from data
2568 * Given an skb with a raw 802.11 header at the data pointer this function
2569 * returns the 802.11 header length in bytes (not including encryption
2570 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2571 * header the function returns 0.
2575 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
2578 * ieee80211_hdrlen - get header length in bytes from frame control
2579 * @fc: frame control field in little-endian format
2581 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
2584 * DOC: Data path helpers
2586 * In addition to generic utilities, cfg80211 also offers
2587 * functions that help implement the data path for devices
2588 * that do not do the 802.11/802.3 conversion on the device.
2592 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2593 * @skb: the 802.11 data frame
2594 * @addr: the device MAC address
2595 * @iftype: the virtual interface type
2597 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
2598 enum nl80211_iftype iftype
);
2601 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2602 * @skb: the 802.3 frame
2603 * @addr: the device MAC address
2604 * @iftype: the virtual interface type
2605 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2606 * @qos: build 802.11 QoS data frame
2608 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
2609 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
2612 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2614 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2615 * 802.3 frames. The @list will be empty if the decode fails. The
2616 * @skb is consumed after the function returns.
2618 * @skb: The input IEEE 802.11n A-MSDU frame.
2619 * @list: The output list of 802.3 frames. It must be allocated and
2620 * initialized by by the caller.
2621 * @addr: The device MAC address.
2622 * @iftype: The device interface type.
2623 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2624 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2626 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
2627 const u8
*addr
, enum nl80211_iftype iftype
,
2628 const unsigned int extra_headroom
,
2629 bool has_80211_header
);
2632 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2633 * @skb: the data frame
2635 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
);
2638 * cfg80211_find_ie - find information element in data
2641 * @ies: data consisting of IEs
2642 * @len: length of data
2644 * This function will return %NULL if the element ID could
2645 * not be found or if the element is invalid (claims to be
2646 * longer than the given data), or a pointer to the first byte
2647 * of the requested element, that is the byte containing the
2648 * element ID. There are no checks on the element length
2649 * other than having to fit into the given data.
2651 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
2654 * cfg80211_find_vendor_ie - find vendor specific information element in data
2657 * @oui_type: vendor-specific OUI type
2658 * @ies: data consisting of IEs
2659 * @len: length of data
2661 * This function will return %NULL if the vendor specific element ID
2662 * could not be found or if the element is invalid (claims to be
2663 * longer than the given data), or a pointer to the first byte
2664 * of the requested element, that is the byte containing the
2665 * element ID. There are no checks on the element length
2666 * other than having to fit into the given data.
2668 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
2669 const u8
*ies
, int len
);
2672 * DOC: Regulatory enforcement infrastructure
2678 * regulatory_hint - driver hint to the wireless core a regulatory domain
2679 * @wiphy: the wireless device giving the hint (used only for reporting
2681 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2682 * should be in. If @rd is set this should be NULL. Note that if you
2683 * set this to NULL you should still set rd->alpha2 to some accepted
2686 * Wireless drivers can use this function to hint to the wireless core
2687 * what it believes should be the current regulatory domain by
2688 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2689 * domain should be in or by providing a completely build regulatory domain.
2690 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2691 * for a regulatory domain structure for the respective country.
2693 * The wiphy must have been registered to cfg80211 prior to this call.
2694 * For cfg80211 drivers this means you must first use wiphy_register(),
2695 * for mac80211 drivers you must first use ieee80211_register_hw().
2697 * Drivers should check the return value, its possible you can get
2700 extern int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
2703 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2704 * @wiphy: the wireless device we want to process the regulatory domain on
2705 * @regd: the custom regulatory domain to use for this wiphy
2707 * Drivers can sometimes have custom regulatory domains which do not apply
2708 * to a specific country. Drivers can use this to apply such custom regulatory
2709 * domains. This routine must be called prior to wiphy registration. The
2710 * custom regulatory domain will be trusted completely and as such previous
2711 * default channel settings will be disregarded. If no rule is found for a
2712 * channel on the regulatory domain the channel will be disabled.
2714 extern void wiphy_apply_custom_regulatory(
2715 struct wiphy
*wiphy
,
2716 const struct ieee80211_regdomain
*regd
);
2719 * freq_reg_info - get regulatory information for the given frequency
2720 * @wiphy: the wiphy for which we want to process this rule for
2721 * @center_freq: Frequency in KHz for which we want regulatory information for
2722 * @desired_bw_khz: the desired max bandwidth you want to use per
2723 * channel. Note that this is still 20 MHz if you want to use HT40
2724 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2725 * If set to 0 we'll assume you want the standard 20 MHz.
2726 * @reg_rule: the regulatory rule which we have for this frequency
2728 * Use this function to get the regulatory rule for a specific frequency on
2729 * a given wireless device. If the device has a specific regulatory domain
2730 * it wants to follow we respect that unless a country IE has been received
2731 * and processed already.
2733 * Returns 0 if it was able to find a valid regulatory rule which does
2734 * apply to the given center_freq otherwise it returns non-zero. It will
2735 * also return -ERANGE if we determine the given center_freq does not even have
2736 * a regulatory rule for a frequency range in the center_freq's band. See
2737 * freq_in_rule_band() for our current definition of a band -- this is purely
2738 * subjective and right now its 802.11 specific.
2740 extern int freq_reg_info(struct wiphy
*wiphy
,
2743 const struct ieee80211_reg_rule
**reg_rule
);
2746 * callbacks for asynchronous cfg80211 methods, notification
2747 * functions and BSS handling helpers
2751 * cfg80211_scan_done - notify that scan finished
2753 * @request: the corresponding scan request
2754 * @aborted: set to true if the scan was aborted for any reason,
2755 * userspace will be notified of that
2757 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
2760 * cfg80211_sched_scan_results - notify that new scan results are available
2762 * @wiphy: the wiphy which got scheduled scan results
2764 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
2767 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2769 * @wiphy: the wiphy on which the scheduled scan stopped
2771 * The driver can call this function to inform cfg80211 that the
2772 * scheduled scan had to be stopped, for whatever reason. The driver
2773 * is then called back via the sched_scan_stop operation when done.
2775 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
2778 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2780 * @wiphy: the wiphy reporting the BSS
2781 * @channel: The channel the frame was received on
2782 * @mgmt: the management frame (probe response or beacon)
2783 * @len: length of the management frame
2784 * @signal: the signal strength, type depends on the wiphy's signal_type
2785 * @gfp: context flags
2787 * This informs cfg80211 that BSS information was found and
2788 * the BSS should be updated/added.
2790 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2792 struct cfg80211_bss
* __must_check
2793 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
2794 struct ieee80211_channel
*channel
,
2795 struct ieee80211_mgmt
*mgmt
, size_t len
,
2796 s32 signal
, gfp_t gfp
);
2799 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2801 * @wiphy: the wiphy reporting the BSS
2802 * @channel: The channel the frame was received on
2803 * @bssid: the BSSID of the BSS
2804 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
2805 * @capability: the capability field sent by the peer
2806 * @beacon_interval: the beacon interval announced by the peer
2807 * @ie: additional IEs sent by the peer
2808 * @ielen: length of the additional IEs
2809 * @signal: the signal strength, type depends on the wiphy's signal_type
2810 * @gfp: context flags
2812 * This informs cfg80211 that BSS information was found and
2813 * the BSS should be updated/added.
2815 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2817 struct cfg80211_bss
* __must_check
2818 cfg80211_inform_bss(struct wiphy
*wiphy
,
2819 struct ieee80211_channel
*channel
,
2820 const u8
*bssid
, u64 tsf
, u16 capability
,
2821 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
2822 s32 signal
, gfp_t gfp
);
2824 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
2825 struct ieee80211_channel
*channel
,
2827 const u8
*ssid
, size_t ssid_len
,
2828 u16 capa_mask
, u16 capa_val
);
2829 static inline struct cfg80211_bss
*
2830 cfg80211_get_ibss(struct wiphy
*wiphy
,
2831 struct ieee80211_channel
*channel
,
2832 const u8
*ssid
, size_t ssid_len
)
2834 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
2835 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
2838 struct cfg80211_bss
*cfg80211_get_mesh(struct wiphy
*wiphy
,
2839 struct ieee80211_channel
*channel
,
2840 const u8
*meshid
, size_t meshidlen
,
2843 * cfg80211_ref_bss - reference BSS struct
2844 * @bss: the BSS struct to reference
2846 * Increments the refcount of the given BSS struct.
2848 void cfg80211_ref_bss(struct cfg80211_bss
*bss
);
2851 * cfg80211_put_bss - unref BSS struct
2852 * @bss: the BSS struct
2854 * Decrements the refcount of the given BSS struct.
2856 void cfg80211_put_bss(struct cfg80211_bss
*bss
);
2859 * cfg80211_unlink_bss - unlink BSS from internal data structures
2861 * @bss: the bss to remove
2863 * This function removes the given BSS from the internal data structures
2864 * thereby making it no longer show up in scan results etc. Use this
2865 * function when you detect a BSS is gone. Normally BSSes will also time
2866 * out, so it is not necessary to use this function at all.
2868 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
2871 * cfg80211_send_rx_auth - notification of processed authentication
2872 * @dev: network device
2873 * @buf: authentication frame (header + body)
2874 * @len: length of the frame data
2876 * This function is called whenever an authentication has been processed in
2877 * station mode. The driver is required to call either this function or
2878 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2879 * call. This function may sleep.
2881 void cfg80211_send_rx_auth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2884 * cfg80211_send_auth_timeout - notification of timed out authentication
2885 * @dev: network device
2886 * @addr: The MAC address of the device with which the authentication timed out
2888 * This function may sleep.
2890 void cfg80211_send_auth_timeout(struct net_device
*dev
, const u8
*addr
);
2893 * cfg80211_send_rx_assoc - notification of processed association
2894 * @dev: network device
2895 * @bss: the BSS struct association was requested for, the struct reference
2896 * is owned by cfg80211 after this call
2897 * @buf: (re)association response frame (header + body)
2898 * @len: length of the frame data
2900 * This function is called whenever a (re)association response has been
2901 * processed in station mode. The driver is required to call either this
2902 * function or cfg80211_send_assoc_timeout() to indicate the result of
2903 * cfg80211_ops::assoc() call. This function may sleep.
2905 void cfg80211_send_rx_assoc(struct net_device
*dev
, struct cfg80211_bss
*bss
,
2906 const u8
*buf
, size_t len
);
2909 * cfg80211_send_assoc_timeout - notification of timed out association
2910 * @dev: network device
2911 * @addr: The MAC address of the device with which the association timed out
2913 * This function may sleep.
2915 void cfg80211_send_assoc_timeout(struct net_device
*dev
, const u8
*addr
);
2918 * cfg80211_send_deauth - notification of processed deauthentication
2919 * @dev: network device
2920 * @buf: deauthentication frame (header + body)
2921 * @len: length of the frame data
2923 * This function is called whenever deauthentication has been processed in
2924 * station mode. This includes both received deauthentication frames and
2925 * locally generated ones. This function may sleep.
2927 void cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2930 * __cfg80211_send_deauth - notification of processed deauthentication
2931 * @dev: network device
2932 * @buf: deauthentication frame (header + body)
2933 * @len: length of the frame data
2935 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2937 void __cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2940 * cfg80211_send_disassoc - notification of processed disassociation
2941 * @dev: network device
2942 * @buf: disassociation response frame (header + body)
2943 * @len: length of the frame data
2945 * This function is called whenever disassociation has been processed in
2946 * station mode. This includes both received disassociation frames and locally
2947 * generated ones. This function may sleep.
2949 void cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
, size_t len
);
2952 * __cfg80211_send_disassoc - notification of processed disassociation
2953 * @dev: network device
2954 * @buf: disassociation response frame (header + body)
2955 * @len: length of the frame data
2957 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2959 void __cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
,
2963 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
2964 * @dev: network device
2965 * @buf: deauthentication frame (header + body)
2966 * @len: length of the frame data
2968 * This function is called whenever a received Deauthentication frame has been
2969 * dropped in station mode because of MFP being used but the Deauthentication
2970 * frame was not protected. This function may sleep.
2972 void cfg80211_send_unprot_deauth(struct net_device
*dev
, const u8
*buf
,
2976 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
2977 * @dev: network device
2978 * @buf: disassociation frame (header + body)
2979 * @len: length of the frame data
2981 * This function is called whenever a received Disassociation frame has been
2982 * dropped in station mode because of MFP being used but the Disassociation
2983 * frame was not protected. This function may sleep.
2985 void cfg80211_send_unprot_disassoc(struct net_device
*dev
, const u8
*buf
,
2989 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2990 * @dev: network device
2991 * @addr: The source MAC address of the frame
2992 * @key_type: The key type that the received frame used
2993 * @key_id: Key identifier (0..3). Can be -1 if missing.
2994 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2995 * @gfp: allocation flags
2997 * This function is called whenever the local MAC detects a MIC failure in a
2998 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3001 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
3002 enum nl80211_key_type key_type
, int key_id
,
3003 const u8
*tsc
, gfp_t gfp
);
3006 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3008 * @dev: network device
3009 * @bssid: the BSSID of the IBSS joined
3010 * @gfp: allocation flags
3012 * This function notifies cfg80211 that the device joined an IBSS or
3013 * switched to a different BSSID. Before this function can be called,
3014 * either a beacon has to have been received from the IBSS, or one of
3015 * the cfg80211_inform_bss{,_frame} functions must have been called
3016 * with the locally generated beacon -- this guarantees that there is
3017 * always a scan result for this IBSS. cfg80211 will handle the rest.
3019 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
, gfp_t gfp
);
3022 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3024 * @dev: network device
3025 * @macaddr: the MAC address of the new candidate
3026 * @ie: information elements advertised by the peer candidate
3027 * @ie_len: lenght of the information elements buffer
3028 * @gfp: allocation flags
3030 * This function notifies cfg80211 that the mesh peer candidate has been
3031 * detected, most likely via a beacon or, less likely, via a probe response.
3032 * cfg80211 then sends a notification to userspace.
3034 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3035 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3038 * DOC: RFkill integration
3040 * RFkill integration in cfg80211 is almost invisible to drivers,
3041 * as cfg80211 automatically registers an rfkill instance for each
3042 * wireless device it knows about. Soft kill is also translated
3043 * into disconnecting and turning all interfaces off, drivers are
3044 * expected to turn off the device when all interfaces are down.
3046 * However, devices may have a hard RFkill line, in which case they
3047 * also need to interact with the rfkill subsystem, via cfg80211.
3048 * They can do this with a few helper functions documented here.
3052 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3054 * @blocked: block status
3056 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
3059 * wiphy_rfkill_start_polling - start polling rfkill
3062 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
3065 * wiphy_rfkill_stop_polling - stop polling rfkill
3068 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
3070 #ifdef CONFIG_NL80211_TESTMODE
3074 * Test mode is a set of utility functions to allow drivers to
3075 * interact with driver-specific tools to aid, for instance,
3076 * factory programming.
3078 * This chapter describes how drivers interact with it, for more
3079 * information see the nl80211 book's chapter on it.
3083 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3085 * @approxlen: an upper bound of the length of the data that will
3086 * be put into the skb
3088 * This function allocates and pre-fills an skb for a reply to
3089 * the testmode command. Since it is intended for a reply, calling
3090 * it outside of the @testmode_cmd operation is invalid.
3092 * The returned skb (or %NULL if any errors happen) is pre-filled
3093 * with the wiphy index and set up in a way that any data that is
3094 * put into the skb (with skb_put(), nla_put() or similar) will end
3095 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
3096 * needs to be done with the skb is adding data for the corresponding
3097 * userspace tool which can then read that data out of the testdata
3098 * attribute. You must not modify the skb in any other way.
3100 * When done, call cfg80211_testmode_reply() with the skb and return
3101 * its error code as the result of the @testmode_cmd operation.
3103 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
3107 * cfg80211_testmode_reply - send the reply skb
3108 * @skb: The skb, must have been allocated with
3109 * cfg80211_testmode_alloc_reply_skb()
3111 * Returns an error code or 0 on success, since calling this
3112 * function will usually be the last thing before returning
3113 * from the @testmode_cmd you should return the error code.
3114 * Note that this function consumes the skb regardless of the
3117 int cfg80211_testmode_reply(struct sk_buff
*skb
);
3120 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3122 * @approxlen: an upper bound of the length of the data that will
3123 * be put into the skb
3124 * @gfp: allocation flags
3126 * This function allocates and pre-fills an skb for an event on the
3127 * testmode multicast group.
3129 * The returned skb (or %NULL if any errors happen) is set up in the
3130 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3131 * for an event. As there, you should simply add data to it that will
3132 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3133 * not modify the skb in any other way.
3135 * When done filling the skb, call cfg80211_testmode_event() with the
3136 * skb to send the event.
3138 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
3139 int approxlen
, gfp_t gfp
);
3142 * cfg80211_testmode_event - send the event
3143 * @skb: The skb, must have been allocated with
3144 * cfg80211_testmode_alloc_event_skb()
3145 * @gfp: allocation flags
3147 * This function sends the given @skb, which must have been allocated
3148 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3151 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
);
3153 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3154 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3156 #define CFG80211_TESTMODE_CMD(cmd)
3157 #define CFG80211_TESTMODE_DUMP(cmd)
3161 * cfg80211_connect_result - notify cfg80211 of connection result
3163 * @dev: network device
3164 * @bssid: the BSSID of the AP
3165 * @req_ie: association request IEs (maybe be %NULL)
3166 * @req_ie_len: association request IEs length
3167 * @resp_ie: association response IEs (may be %NULL)
3168 * @resp_ie_len: assoc response IEs length
3169 * @status: status code, 0 for successful connection, use
3170 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3171 * the real status code for failures.
3172 * @gfp: allocation flags
3174 * It should be called by the underlying driver whenever connect() has
3177 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
3178 const u8
*req_ie
, size_t req_ie_len
,
3179 const u8
*resp_ie
, size_t resp_ie_len
,
3180 u16 status
, gfp_t gfp
);
3183 * cfg80211_roamed - notify cfg80211 of roaming
3185 * @dev: network device
3186 * @channel: the channel of the new AP
3187 * @bssid: the BSSID of the new AP
3188 * @req_ie: association request IEs (maybe be %NULL)
3189 * @req_ie_len: association request IEs length
3190 * @resp_ie: association response IEs (may be %NULL)
3191 * @resp_ie_len: assoc response IEs length
3192 * @gfp: allocation flags
3194 * It should be called by the underlying driver whenever it roamed
3195 * from one AP to another while connected.
3197 void cfg80211_roamed(struct net_device
*dev
,
3198 struct ieee80211_channel
*channel
,
3200 const u8
*req_ie
, size_t req_ie_len
,
3201 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3204 * cfg80211_roamed_bss - notify cfg80211 of roaming
3206 * @dev: network device
3207 * @bss: entry of bss to which STA got roamed
3208 * @req_ie: association request IEs (maybe be %NULL)
3209 * @req_ie_len: association request IEs length
3210 * @resp_ie: association response IEs (may be %NULL)
3211 * @resp_ie_len: assoc response IEs length
3212 * @gfp: allocation flags
3214 * This is just a wrapper to notify cfg80211 of roaming event with driver
3215 * passing bss to avoid a race in timeout of the bss entry. It should be
3216 * called by the underlying driver whenever it roamed from one AP to another
3217 * while connected. Drivers which have roaming implemented in firmware
3218 * may use this function to avoid a race in bss entry timeout where the bss
3219 * entry of the new AP is seen in the driver, but gets timed out by the time
3220 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3221 * rdev->event_work. In case of any failures, the reference is released
3222 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3223 * it will be released while diconneting from the current bss.
3225 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
3226 const u8
*req_ie
, size_t req_ie_len
,
3227 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3230 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3232 * @dev: network device
3233 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3234 * @ie_len: length of IEs
3235 * @reason: reason code for the disconnection, set it to 0 if unknown
3236 * @gfp: allocation flags
3238 * After it calls this function, the driver should enter an idle state
3239 * and not try to connect to any AP any more.
3241 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
3242 u8
*ie
, size_t ie_len
, gfp_t gfp
);
3245 * cfg80211_ready_on_channel - notification of remain_on_channel start
3246 * @dev: network device
3247 * @cookie: the request cookie
3248 * @chan: The current channel (from remain_on_channel request)
3249 * @channel_type: Channel type
3250 * @duration: Duration in milliseconds that the driver intents to remain on the
3252 * @gfp: allocation flags
3254 void cfg80211_ready_on_channel(struct net_device
*dev
, u64 cookie
,
3255 struct ieee80211_channel
*chan
,
3256 enum nl80211_channel_type channel_type
,
3257 unsigned int duration
, gfp_t gfp
);
3260 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3261 * @dev: network device
3262 * @cookie: the request cookie
3263 * @chan: The current channel (from remain_on_channel request)
3264 * @channel_type: Channel type
3265 * @gfp: allocation flags
3267 void cfg80211_remain_on_channel_expired(struct net_device
*dev
,
3269 struct ieee80211_channel
*chan
,
3270 enum nl80211_channel_type channel_type
,
3275 * cfg80211_new_sta - notify userspace about station
3278 * @mac_addr: the station's address
3279 * @sinfo: the station information
3280 * @gfp: allocation flags
3282 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
3283 struct station_info
*sinfo
, gfp_t gfp
);
3286 * cfg80211_del_sta - notify userspace about deletion of a station
3289 * @mac_addr: the station's address
3290 * @gfp: allocation flags
3292 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
3295 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3296 * @dev: network device
3297 * @freq: Frequency on which the frame was received in MHz
3298 * @sig_dbm: signal strength in mBm, or 0 if unknown
3299 * @buf: Management frame (header + body)
3300 * @len: length of the frame data
3301 * @gfp: context flags
3303 * Returns %true if a user space application has registered for this frame.
3304 * For action frames, that makes it responsible for rejecting unrecognized
3305 * action frames; %false otherwise, in which case for action frames the
3306 * driver is responsible for rejecting the frame.
3308 * This function is called whenever an Action frame is received for a station
3309 * mode interface, but is not processed in kernel.
3311 bool cfg80211_rx_mgmt(struct net_device
*dev
, int freq
, int sig_dbm
,
3312 const u8
*buf
, size_t len
, gfp_t gfp
);
3315 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3316 * @dev: network device
3317 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3318 * @buf: Management frame (header + body)
3319 * @len: length of the frame data
3320 * @ack: Whether frame was acknowledged
3321 * @gfp: context flags
3323 * This function is called whenever a management frame was requested to be
3324 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3325 * transmission attempt.
3327 void cfg80211_mgmt_tx_status(struct net_device
*dev
, u64 cookie
,
3328 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
3332 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3333 * @dev: network device
3334 * @rssi_event: the triggered RSSI event
3335 * @gfp: context flags
3337 * This function is called when a configured connection quality monitoring
3338 * rssi threshold reached event occurs.
3340 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
3341 enum nl80211_cqm_rssi_threshold_event rssi_event
,
3345 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3346 * @dev: network device
3347 * @peer: peer's MAC address
3348 * @num_packets: how many packets were lost -- should be a fixed threshold
3349 * but probably no less than maybe 50, or maybe a throughput dependent
3350 * threshold (to account for temporary interference)
3351 * @gfp: context flags
3353 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
3354 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
3357 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3358 * @dev: network device
3359 * @bssid: BSSID of AP (to avoid races)
3360 * @replay_ctr: new replay counter
3361 * @gfp: allocation flags
3363 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
3364 const u8
*replay_ctr
, gfp_t gfp
);
3367 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3368 * @dev: network device
3369 * @index: candidate index (the smaller the index, the higher the priority)
3370 * @bssid: BSSID of AP
3371 * @preauth: Whether AP advertises support for RSN pre-authentication
3372 * @gfp: allocation flags
3374 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
3375 const u8
*bssid
, bool preauth
, gfp_t gfp
);
3378 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3379 * @dev: The device the frame matched to
3380 * @addr: the transmitter address
3381 * @gfp: context flags
3383 * This function is used in AP mode (only!) to inform userspace that
3384 * a spurious class 3 frame was received, to be able to deauth the
3386 * Returns %true if the frame was passed to userspace (or this failed
3387 * for a reason other than not having a subscription.)
3389 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
3390 const u8
*addr
, gfp_t gfp
);
3393 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3394 * @dev: The device the frame matched to
3395 * @addr: the transmitter address
3396 * @gfp: context flags
3398 * This function is used in AP mode (only!) to inform userspace that
3399 * an associated station sent a 4addr frame but that wasn't expected.
3400 * It is allowed and desirable to send this event only once for each
3401 * station to avoid event flooding.
3402 * Returns %true if the frame was passed to userspace (or this failed
3403 * for a reason other than not having a subscription.)
3405 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
3406 const u8
*addr
, gfp_t gfp
);
3409 * cfg80211_probe_status - notify userspace about probe status
3410 * @dev: the device the probe was sent on
3411 * @addr: the address of the peer
3412 * @cookie: the cookie filled in @probe_client previously
3413 * @acked: indicates whether probe was acked or not
3414 * @gfp: allocation flags
3416 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
3417 u64 cookie
, bool acked
, gfp_t gfp
);
3420 * cfg80211_report_obss_beacon - report beacon from other APs
3421 * @wiphy: The wiphy that received the beacon
3423 * @len: length of the frame
3424 * @freq: frequency the frame was received on
3425 * @sig_dbm: signal strength in mBm, or 0 if unknown
3426 * @gfp: allocation flags
3428 * Use this function to report to userspace when a beacon was
3429 * received. It is not useful to call this when there is no
3430 * netdev that is in AP/GO mode.
3432 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
3433 const u8
*frame
, size_t len
,
3434 int freq
, int sig_dbm
, gfp_t gfp
);
3437 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3439 * @chan: main channel
3440 * @channel_type: HT mode
3442 * This function returns true if there is no secondary channel or the secondary
3443 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3445 bool cfg80211_can_beacon_sec_chan(struct wiphy
*wiphy
,
3446 struct ieee80211_channel
*chan
,
3447 enum nl80211_channel_type channel_type
);
3450 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3451 * @dev: the device which switched channels
3452 * @freq: new channel frequency (in MHz)
3453 * @type: channel type
3455 * Acquires wdev_lock, so must only be called from sleepable driver context!
3457 void cfg80211_ch_switch_notify(struct net_device
*dev
, int freq
,
3458 enum nl80211_channel_type type
);
3461 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3462 * @rate: given rate_info to calculate bitrate from
3464 * return 0 if MCS index >= 32
3466 u16
cfg80211_calculate_bitrate(struct rate_info
*rate
);
3468 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3470 /* wiphy_printk helpers, similar to dev_printk */
3472 #define wiphy_printk(level, wiphy, format, args...) \
3473 dev_printk(level, &(wiphy)->dev, format, ##args)
3474 #define wiphy_emerg(wiphy, format, args...) \
3475 dev_emerg(&(wiphy)->dev, format, ##args)
3476 #define wiphy_alert(wiphy, format, args...) \
3477 dev_alert(&(wiphy)->dev, format, ##args)
3478 #define wiphy_crit(wiphy, format, args...) \
3479 dev_crit(&(wiphy)->dev, format, ##args)
3480 #define wiphy_err(wiphy, format, args...) \
3481 dev_err(&(wiphy)->dev, format, ##args)
3482 #define wiphy_warn(wiphy, format, args...) \
3483 dev_warn(&(wiphy)->dev, format, ##args)
3484 #define wiphy_notice(wiphy, format, args...) \
3485 dev_notice(&(wiphy)->dev, format, ##args)
3486 #define wiphy_info(wiphy, format, args...) \
3487 dev_info(&(wiphy)->dev, format, ##args)
3489 #define wiphy_debug(wiphy, format, args...) \
3490 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3492 #define wiphy_dbg(wiphy, format, args...) \
3493 dev_dbg(&(wiphy)->dev, format, ##args)
3495 #if defined(VERBOSE_DEBUG)
3496 #define wiphy_vdbg wiphy_dbg
3498 #define wiphy_vdbg(wiphy, format, args...) \
3501 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3507 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3508 * of using a WARN/WARN_ON to get the message out, including the
3509 * file/line information and a backtrace.
3511 #define wiphy_WARN(wiphy, format, args...) \
3512 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3514 #endif /* __NET_CFG80211_H */