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
1031 struct cfg80211_sched_scan_request
{
1032 struct cfg80211_ssid
*ssids
;
1038 struct cfg80211_match_set
*match_sets
;
1042 struct wiphy
*wiphy
;
1043 struct net_device
*dev
;
1046 struct ieee80211_channel
*channels
[0];
1050 * enum cfg80211_signal_type - signal type
1052 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1053 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1054 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1056 enum cfg80211_signal_type
{
1057 CFG80211_SIGNAL_TYPE_NONE
,
1058 CFG80211_SIGNAL_TYPE_MBM
,
1059 CFG80211_SIGNAL_TYPE_UNSPEC
,
1063 * struct cfg80211_bss - BSS description
1065 * This structure describes a BSS (which may also be a mesh network)
1066 * for use in scan results and similar.
1068 * @channel: channel this BSS is on
1069 * @bssid: BSSID of the BSS
1070 * @tsf: timestamp of last received update
1071 * @beacon_interval: the beacon interval as from the frame
1072 * @capability: the capability field in host byte order
1073 * @information_elements: the information elements (Note that there
1074 * is no guarantee that these are well-formed!); this is a pointer to
1075 * either the beacon_ies or proberesp_ies depending on whether Probe
1076 * Response frame has been received
1077 * @len_information_elements: total length of the information elements
1078 * @beacon_ies: the information elements from the last Beacon frame
1079 * @len_beacon_ies: total length of the beacon_ies
1080 * @proberesp_ies: the information elements from the last Probe Response frame
1081 * @len_proberesp_ies: total length of the proberesp_ies
1082 * @signal: signal strength value (type depends on the wiphy's signal_type)
1083 * @free_priv: function pointer to free private data
1084 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1086 struct cfg80211_bss
{
1087 struct ieee80211_channel
*channel
;
1091 u16 beacon_interval
;
1093 u8
*information_elements
;
1094 size_t len_information_elements
;
1096 size_t len_beacon_ies
;
1098 size_t len_proberesp_ies
;
1102 void (*free_priv
)(struct cfg80211_bss
*bss
);
1103 u8 priv
[0] __attribute__((__aligned__(sizeof(void *))));
1107 * ieee80211_bss_get_ie - find IE with given ID
1108 * @bss: the bss to search
1110 * Returns %NULL if not found.
1112 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1116 * struct cfg80211_auth_request - Authentication request data
1118 * This structure provides information needed to complete IEEE 802.11
1121 * @bss: The BSS to authenticate with.
1122 * @auth_type: Authentication type (algorithm)
1123 * @ie: Extra IEs to add to Authentication frame or %NULL
1124 * @ie_len: Length of ie buffer in octets
1125 * @key_len: length of WEP key for shared key authentication
1126 * @key_idx: index of WEP key for shared key authentication
1127 * @key: WEP key for shared key authentication
1129 struct cfg80211_auth_request
{
1130 struct cfg80211_bss
*bss
;
1133 enum nl80211_auth_type auth_type
;
1135 u8 key_len
, key_idx
;
1139 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1141 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1143 enum cfg80211_assoc_req_flags
{
1144 ASSOC_REQ_DISABLE_HT
= BIT(0),
1148 * struct cfg80211_assoc_request - (Re)Association request data
1150 * This structure provides information needed to complete IEEE 802.11
1152 * @bss: The BSS to associate with. If the call is successful the driver
1153 * is given a reference that it must release, normally via a call to
1154 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1155 * call to cfg80211_put_bss() (in addition to calling
1156 * cfg80211_send_assoc_timeout())
1157 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1158 * @ie_len: Length of ie buffer in octets
1159 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1160 * @crypto: crypto settings
1161 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1162 * @flags: See &enum cfg80211_assoc_req_flags
1163 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1164 * will be used in ht_capa. Un-supported values will be ignored.
1165 * @ht_capa_mask: The bits of ht_capa which are to be used.
1167 struct cfg80211_assoc_request
{
1168 struct cfg80211_bss
*bss
;
1169 const u8
*ie
, *prev_bssid
;
1171 struct cfg80211_crypto_settings crypto
;
1174 struct ieee80211_ht_cap ht_capa
;
1175 struct ieee80211_ht_cap ht_capa_mask
;
1179 * struct cfg80211_deauth_request - Deauthentication request data
1181 * This structure provides information needed to complete IEEE 802.11
1184 * @bssid: the BSSID of the BSS to deauthenticate from
1185 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1186 * @ie_len: Length of ie buffer in octets
1187 * @reason_code: The reason code for the deauthentication
1189 struct cfg80211_deauth_request
{
1197 * struct cfg80211_disassoc_request - Disassociation request data
1199 * This structure provides information needed to complete IEEE 802.11
1202 * @bss: the BSS to disassociate from
1203 * @ie: Extra IEs to add to Disassociation frame or %NULL
1204 * @ie_len: Length of ie buffer in octets
1205 * @reason_code: The reason code for the disassociation
1206 * @local_state_change: This is a request for a local state only, i.e., no
1207 * Disassociation frame is to be transmitted.
1209 struct cfg80211_disassoc_request
{
1210 struct cfg80211_bss
*bss
;
1214 bool local_state_change
;
1218 * struct cfg80211_ibss_params - IBSS parameters
1220 * This structure defines the IBSS parameters for the join_ibss()
1223 * @ssid: The SSID, will always be non-null.
1224 * @ssid_len: The length of the SSID, will always be non-zero.
1225 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1226 * search for IBSSs with a different BSSID.
1227 * @channel: The channel to use if no IBSS can be found to join.
1228 * @channel_type: channel type (HT mode)
1229 * @channel_fixed: The channel should be fixed -- do not search for
1230 * IBSSs to join on other channels.
1231 * @ie: information element(s) to include in the beacon
1232 * @ie_len: length of that
1233 * @beacon_interval: beacon interval to use
1234 * @privacy: this is a protected network, keys will be configured
1236 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1237 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1238 * required to assume that the port is unauthorized until authorized by
1239 * user space. Otherwise, port is marked authorized by default.
1240 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1241 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1243 struct cfg80211_ibss_params
{
1246 struct ieee80211_channel
*channel
;
1247 enum nl80211_channel_type channel_type
;
1249 u8 ssid_len
, ie_len
;
1250 u16 beacon_interval
;
1255 int mcast_rate
[IEEE80211_NUM_BANDS
];
1259 * struct cfg80211_connect_params - Connection parameters
1261 * This structure provides information needed to complete IEEE 802.11
1262 * authentication and association.
1264 * @channel: The channel to use or %NULL if not specified (auto-select based
1266 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1269 * @ssid_len: Length of ssid in octets
1270 * @auth_type: Authentication type (algorithm)
1271 * @ie: IEs for association request
1272 * @ie_len: Length of assoc_ie in octets
1273 * @privacy: indicates whether privacy-enabled APs should be used
1274 * @crypto: crypto settings
1275 * @key_len: length of WEP key for shared key authentication
1276 * @key_idx: index of WEP key for shared key authentication
1277 * @key: WEP key for shared key authentication
1278 * @flags: See &enum cfg80211_assoc_req_flags
1279 * @bg_scan_period: Background scan period in seconds
1280 * or -1 to indicate that default value is to be used.
1281 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1282 * will be used in ht_capa. Un-supported values will be ignored.
1283 * @ht_capa_mask: The bits of ht_capa which are to be used.
1285 struct cfg80211_connect_params
{
1286 struct ieee80211_channel
*channel
;
1290 enum nl80211_auth_type auth_type
;
1294 struct cfg80211_crypto_settings crypto
;
1296 u8 key_len
, key_idx
;
1299 struct ieee80211_ht_cap ht_capa
;
1300 struct ieee80211_ht_cap ht_capa_mask
;
1304 * enum wiphy_params_flags - set_wiphy_params bitfield values
1305 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1306 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1307 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1308 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1309 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1311 enum wiphy_params_flags
{
1312 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1313 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1314 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1315 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1316 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1320 * cfg80211_bitrate_mask - masks for bitrate control
1322 struct cfg80211_bitrate_mask
{
1325 u8 mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1326 } control
[IEEE80211_NUM_BANDS
];
1329 * struct cfg80211_pmksa - PMK Security Association
1331 * This structure is passed to the set/del_pmksa() method for PMKSA
1334 * @bssid: The AP's BSSID.
1335 * @pmkid: The PMK material itself.
1337 struct cfg80211_pmksa
{
1343 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1344 * @mask: bitmask where to match pattern and where to ignore bytes,
1345 * one bit per byte, in same format as nl80211
1346 * @pattern: bytes to match where bitmask is 1
1347 * @pattern_len: length of pattern (in bytes)
1349 * Internal note: @mask and @pattern are allocated in one chunk of
1350 * memory, free @mask only!
1352 struct cfg80211_wowlan_trig_pkt_pattern
{
1358 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1360 * This structure defines the enabled WoWLAN triggers for the device.
1361 * @any: wake up on any activity -- special trigger if device continues
1362 * operating as normal during suspend
1363 * @disconnect: wake up if getting disconnected
1364 * @magic_pkt: wake up on receiving magic packet
1365 * @patterns: wake up on receiving packet matching a pattern
1366 * @n_patterns: number of patterns
1367 * @gtk_rekey_failure: wake up on GTK rekey failure
1368 * @eap_identity_req: wake up on EAP identity request packet
1369 * @four_way_handshake: wake up on 4-way handshake
1370 * @rfkill_release: wake up when rfkill is released
1372 struct cfg80211_wowlan
{
1373 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1374 eap_identity_req
, four_way_handshake
,
1376 struct cfg80211_wowlan_trig_pkt_pattern
*patterns
;
1381 * struct cfg80211_gtk_rekey_data - rekey data
1382 * @kek: key encryption key
1383 * @kck: key confirmation key
1384 * @replay_ctr: replay counter
1386 struct cfg80211_gtk_rekey_data
{
1387 u8 kek
[NL80211_KEK_LEN
];
1388 u8 kck
[NL80211_KCK_LEN
];
1389 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1393 * struct cfg80211_ops - backend description for wireless configuration
1395 * This struct is registered by fullmac card drivers and/or wireless stacks
1396 * in order to handle configuration requests on their interfaces.
1398 * All callbacks except where otherwise noted should return 0
1399 * on success or a negative error code.
1401 * All operations are currently invoked under rtnl for consistency with the
1402 * wireless extensions but this is subject to reevaluation as soon as this
1403 * code is used more widely and we have a first user without wext.
1405 * @suspend: wiphy device needs to be suspended. The variable @wow will
1406 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1407 * configured for the device.
1408 * @resume: wiphy device needs to be resumed
1409 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1410 * to call device_set_wakeup_enable() to enable/disable wakeup from
1413 * @add_virtual_intf: create a new virtual interface with the given name,
1414 * must set the struct wireless_dev's iftype. Beware: You must create
1415 * the new netdev in the wiphy's network namespace! Returns the netdev,
1418 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1420 * @change_virtual_intf: change type/configuration of virtual interface,
1421 * keep the struct wireless_dev's iftype updated.
1423 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1424 * when adding a group key.
1426 * @get_key: get information about the key with the given parameters.
1427 * @mac_addr will be %NULL when requesting information for a group
1428 * key. All pointers given to the @callback function need not be valid
1429 * after it returns. This function should return an error if it is
1430 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1432 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1433 * and @key_index, return -ENOENT if the key doesn't exist.
1435 * @set_default_key: set the default key on an interface
1437 * @set_default_mgmt_key: set the default management frame key on an interface
1439 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1441 * @start_ap: Start acting in AP mode defined by the parameters.
1442 * @change_beacon: Change the beacon parameters for an access point mode
1443 * interface. This should reject the call when AP mode wasn't started.
1444 * @stop_ap: Stop being an AP, including stopping beaconing.
1446 * @add_station: Add a new station.
1447 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1448 * @change_station: Modify a given station. Note that flags changes are not much
1449 * validated in cfg80211, in particular the auth/assoc/authorized flags
1450 * might come to the driver in invalid combinations -- make sure to check
1451 * them, also against the existing state! Also, supported_rates changes are
1452 * not checked in station mode -- drivers need to reject (or ignore) them
1453 * for anything but TDLS peers.
1454 * @get_station: get station information for the station identified by @mac
1455 * @dump_station: dump station callback -- resume dump at index @idx
1457 * @add_mpath: add a fixed mesh path
1458 * @del_mpath: delete a given mesh path
1459 * @change_mpath: change a given mesh path
1460 * @get_mpath: get a mesh path for the given parameters
1461 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1462 * @join_mesh: join the mesh network with the specified parameters
1463 * @leave_mesh: leave the current mesh network
1465 * @get_mesh_config: Get the current mesh configuration
1467 * @update_mesh_config: Update mesh parameters on a running mesh.
1468 * The mask is a bitfield which tells us which parameters to
1469 * set, and which to leave alone.
1471 * @change_bss: Modify parameters for a given BSS.
1473 * @set_txq_params: Set TX queue parameters
1475 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1476 * as it doesn't implement join_mesh and needs to set the channel to
1477 * join the mesh instead.
1479 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1480 * interfaces are active this callback should reject the configuration.
1481 * If no interfaces are active or the device is down, the channel should
1482 * be stored for when a monitor interface becomes active.
1483 * @get_channel: Get the current operating channel, should return %NULL if
1484 * there's no single defined operating channel if for example the
1485 * device implements channel hopping for multi-channel virtual interfaces.
1487 * @scan: Request to do a scan. If returning zero, the scan request is given
1488 * the driver, and will be valid until passed to cfg80211_scan_done().
1489 * For scan results, call cfg80211_inform_bss(); you can call this outside
1490 * the scan/scan_done bracket too.
1492 * @auth: Request to authenticate with the specified peer
1493 * @assoc: Request to (re)associate with the specified peer
1494 * @deauth: Request to deauthenticate from the specified peer
1495 * @disassoc: Request to disassociate from the specified peer
1497 * @connect: Connect to the ESS with the specified parameters. When connected,
1498 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1499 * If the connection fails for some reason, call cfg80211_connect_result()
1500 * with the status from the AP.
1501 * @disconnect: Disconnect from the BSS/ESS.
1503 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1504 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1506 * @leave_ibss: Leave the IBSS.
1508 * @set_wiphy_params: Notify that wiphy parameters have changed;
1509 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1510 * have changed. The actual parameter values are available in
1511 * struct wiphy. If returning an error, no value should be changed.
1513 * @set_tx_power: set the transmit power according to the parameters,
1514 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1515 * @get_tx_power: store the current TX power into the dbm variable;
1516 * return 0 if successful
1518 * @set_wds_peer: set the WDS peer for a WDS interface
1520 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1521 * functions to adjust rfkill hw state
1523 * @dump_survey: get site survey information.
1525 * @remain_on_channel: Request the driver to remain awake on the specified
1526 * channel for the specified duration to complete an off-channel
1527 * operation (e.g., public action frame exchange). When the driver is
1528 * ready on the requested channel, it must indicate this with an event
1529 * notification by calling cfg80211_ready_on_channel().
1530 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1531 * This allows the operation to be terminated prior to timeout based on
1532 * the duration value.
1533 * @mgmt_tx: Transmit a management frame.
1534 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1535 * frame on another channel
1537 * @testmode_cmd: run a test mode command
1538 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1539 * used by the function, but 0 and 1 must not be touched. Additionally,
1540 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1541 * dump and return to userspace with an error, so be careful. If any data
1542 * was passed in from userspace then the data/len arguments will be present
1543 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1545 * @set_bitrate_mask: set the bitrate mask configuration
1547 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1548 * devices running firmwares capable of generating the (re) association
1549 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1550 * @del_pmksa: Delete a cached PMKID.
1551 * @flush_pmksa: Flush all cached PMKIDs.
1552 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1553 * allows the driver to adjust the dynamic ps timeout value.
1554 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1555 * @sched_scan_start: Tell the driver to start a scheduled scan.
1556 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1557 * scan. The driver_initiated flag specifies whether the driver
1558 * itself has informed that the scan has stopped.
1560 * @mgmt_frame_register: Notify driver that a management frame type was
1561 * registered. Note that this callback may not sleep, and cannot run
1562 * concurrently with itself.
1564 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1565 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1566 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1567 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1569 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1571 * @set_ringparam: Set tx and rx ring sizes.
1573 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1575 * @tdls_mgmt: Transmit a TDLS management frame.
1576 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1578 * @probe_client: probe an associated client, must return a cookie that it
1579 * later passes to cfg80211_probe_status().
1581 * @set_noack_map: Set the NoAck Map for the TIDs.
1583 * @get_et_sset_count: Ethtool API to get string-set count.
1584 * See @ethtool_ops.get_sset_count
1586 * @get_et_stats: Ethtool API to get a set of u64 stats.
1587 * See @ethtool_ops.get_ethtool_stats
1589 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1590 * and perhaps other supported types of ethtool data-sets.
1591 * See @ethtool_ops.get_strings
1593 struct cfg80211_ops
{
1594 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
1595 int (*resume
)(struct wiphy
*wiphy
);
1596 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
1598 struct net_device
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
1600 enum nl80211_iftype type
,
1602 struct vif_params
*params
);
1603 int (*del_virtual_intf
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1604 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
1605 struct net_device
*dev
,
1606 enum nl80211_iftype type
, u32
*flags
,
1607 struct vif_params
*params
);
1609 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1610 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1611 struct key_params
*params
);
1612 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1613 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1615 void (*callback
)(void *cookie
, struct key_params
*));
1616 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1617 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
1618 int (*set_default_key
)(struct wiphy
*wiphy
,
1619 struct net_device
*netdev
,
1620 u8 key_index
, bool unicast
, bool multicast
);
1621 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
1622 struct net_device
*netdev
,
1625 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1626 struct cfg80211_ap_settings
*settings
);
1627 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1628 struct cfg80211_beacon_data
*info
);
1629 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1632 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1633 u8
*mac
, struct station_parameters
*params
);
1634 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1636 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1637 u8
*mac
, struct station_parameters
*params
);
1638 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1639 u8
*mac
, struct station_info
*sinfo
);
1640 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1641 int idx
, u8
*mac
, struct station_info
*sinfo
);
1643 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1644 u8
*dst
, u8
*next_hop
);
1645 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1647 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1648 u8
*dst
, u8
*next_hop
);
1649 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1650 u8
*dst
, u8
*next_hop
,
1651 struct mpath_info
*pinfo
);
1652 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1653 int idx
, u8
*dst
, u8
*next_hop
,
1654 struct mpath_info
*pinfo
);
1655 int (*get_mesh_config
)(struct wiphy
*wiphy
,
1656 struct net_device
*dev
,
1657 struct mesh_config
*conf
);
1658 int (*update_mesh_config
)(struct wiphy
*wiphy
,
1659 struct net_device
*dev
, u32 mask
,
1660 const struct mesh_config
*nconf
);
1661 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1662 const struct mesh_config
*conf
,
1663 const struct mesh_setup
*setup
);
1664 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1666 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1667 struct bss_parameters
*params
);
1669 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1670 struct ieee80211_txq_params
*params
);
1672 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
1673 struct net_device
*dev
,
1674 struct ieee80211_channel
*chan
);
1676 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
1677 struct ieee80211_channel
*chan
,
1678 enum nl80211_channel_type channel_type
);
1680 int (*scan
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1681 struct cfg80211_scan_request
*request
);
1683 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1684 struct cfg80211_auth_request
*req
);
1685 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1686 struct cfg80211_assoc_request
*req
);
1687 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1688 struct cfg80211_deauth_request
*req
);
1689 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1690 struct cfg80211_disassoc_request
*req
);
1692 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1693 struct cfg80211_connect_params
*sme
);
1694 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1697 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1698 struct cfg80211_ibss_params
*params
);
1699 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1701 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
1703 int (*set_tx_power
)(struct wiphy
*wiphy
,
1704 enum nl80211_tx_power_setting type
, int mbm
);
1705 int (*get_tx_power
)(struct wiphy
*wiphy
, int *dbm
);
1707 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1710 void (*rfkill_poll
)(struct wiphy
*wiphy
);
1712 #ifdef CONFIG_NL80211_TESTMODE
1713 int (*testmode_cmd
)(struct wiphy
*wiphy
, void *data
, int len
);
1714 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
1715 struct netlink_callback
*cb
,
1716 void *data
, int len
);
1719 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
1720 struct net_device
*dev
,
1722 const struct cfg80211_bitrate_mask
*mask
);
1724 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1725 int idx
, struct survey_info
*info
);
1727 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1728 struct cfg80211_pmksa
*pmksa
);
1729 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1730 struct cfg80211_pmksa
*pmksa
);
1731 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
1733 int (*remain_on_channel
)(struct wiphy
*wiphy
,
1734 struct net_device
*dev
,
1735 struct ieee80211_channel
*chan
,
1736 enum nl80211_channel_type channel_type
,
1737 unsigned int duration
,
1739 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
1740 struct net_device
*dev
,
1743 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1744 struct ieee80211_channel
*chan
, bool offchan
,
1745 enum nl80211_channel_type channel_type
,
1746 bool channel_type_valid
, unsigned int wait
,
1747 const u8
*buf
, size_t len
, bool no_cck
,
1748 bool dont_wait_for_ack
, u64
*cookie
);
1749 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
1750 struct net_device
*dev
,
1753 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1754 bool enabled
, int timeout
);
1756 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
1757 struct net_device
*dev
,
1758 s32 rssi_thold
, u32 rssi_hyst
);
1760 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
1761 struct net_device
*dev
,
1762 u16 frame_type
, bool reg
);
1764 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
1765 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
1767 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
1768 void (*get_ringparam
)(struct wiphy
*wiphy
,
1769 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
1771 int (*sched_scan_start
)(struct wiphy
*wiphy
,
1772 struct net_device
*dev
,
1773 struct cfg80211_sched_scan_request
*request
);
1774 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1776 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1777 struct cfg80211_gtk_rekey_data
*data
);
1779 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1780 u8
*peer
, u8 action_code
, u8 dialog_token
,
1781 u16 status_code
, const u8
*buf
, size_t len
);
1782 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1783 u8
*peer
, enum nl80211_tdls_operation oper
);
1785 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1786 const u8
*peer
, u64
*cookie
);
1788 int (*set_noack_map
)(struct wiphy
*wiphy
,
1789 struct net_device
*dev
,
1792 struct ieee80211_channel
*(*get_channel
)(struct wiphy
*wiphy
,
1793 enum nl80211_channel_type
*type
);
1795 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
1796 struct net_device
*dev
, int sset
);
1797 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1798 struct ethtool_stats
*stats
, u64
*data
);
1799 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1800 u32 sset
, u8
*data
);
1804 * wireless hardware and networking interfaces structures
1805 * and registration/helper functions
1809 * enum wiphy_flags - wiphy capability flags
1811 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1812 * has its own custom regulatory domain and cannot identify the
1813 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1814 * we will disregard the first regulatory hint (when the
1815 * initiator is %REGDOM_SET_BY_CORE).
1816 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1817 * ignore regulatory domain settings until it gets its own regulatory
1818 * domain via its regulatory_hint() unless the regulatory hint is
1819 * from a country IE. After its gets its own regulatory domain it will
1820 * only allow further regulatory domain settings to further enhance
1821 * compliance. For example if channel 13 and 14 are disabled by this
1822 * regulatory domain no user regulatory domain can enable these channels
1823 * at a later time. This can be used for devices which do not have
1824 * calibration information guaranteed for frequencies or settings
1825 * outside of its regulatory domain. If used in combination with
1826 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1828 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1829 * that passive scan flags and beaconing flags may not be lifted by
1830 * cfg80211 due to regulatory beacon hints. For more information on beacon
1831 * hints read the documenation for regulatory_hint_found_beacon()
1832 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1834 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1835 * by default -- this flag will be set depending on the kernel's default
1836 * on wiphy_new(), but can be changed by the driver if it has a good
1837 * reason to override the default
1838 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1839 * on a VLAN interface)
1840 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1841 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1842 * control port protocol ethertype. The device also honours the
1843 * control_port_no_encrypt flag.
1844 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1845 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1846 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1847 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1848 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1850 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1851 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1852 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1853 * link setup/discovery operations internally. Setup, discovery and
1854 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1855 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1856 * used for asking the driver/firmware to perform a TDLS operation.
1857 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1858 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1859 * when there are virtual interfaces in AP mode by calling
1860 * cfg80211_report_obss_beacon().
1861 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1862 * responds to probe-requests in hardware.
1863 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1864 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1867 WIPHY_FLAG_CUSTOM_REGULATORY
= BIT(0),
1868 WIPHY_FLAG_STRICT_REGULATORY
= BIT(1),
1869 WIPHY_FLAG_DISABLE_BEACON_HINTS
= BIT(2),
1870 WIPHY_FLAG_NETNS_OK
= BIT(3),
1871 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
1872 WIPHY_FLAG_4ADDR_AP
= BIT(5),
1873 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
1874 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
1875 WIPHY_FLAG_IBSS_RSN
= BIT(8),
1876 WIPHY_FLAG_MESH_AUTH
= BIT(10),
1877 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
1878 /* use hole at 12 */
1879 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
1880 WIPHY_FLAG_AP_UAPSD
= BIT(14),
1881 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
1882 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
1883 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
1884 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
1885 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
1886 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
1887 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
1891 * struct ieee80211_iface_limit - limit on certain interface types
1892 * @max: maximum number of interfaces of these types
1893 * @types: interface types (bits)
1895 struct ieee80211_iface_limit
{
1901 * struct ieee80211_iface_combination - possible interface combination
1902 * @limits: limits for the given interface types
1903 * @n_limits: number of limitations
1904 * @num_different_channels: can use up to this many different channels
1905 * @max_interfaces: maximum number of interfaces in total allowed in this
1907 * @beacon_int_infra_match: In this combination, the beacon intervals
1908 * between infrastructure and AP types must match. This is required
1909 * only in special cases.
1911 * These examples can be expressed as follows:
1913 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1915 * struct ieee80211_iface_limit limits1[] = {
1916 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1917 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1919 * struct ieee80211_iface_combination combination1 = {
1920 * .limits = limits1,
1921 * .n_limits = ARRAY_SIZE(limits1),
1922 * .max_interfaces = 2,
1923 * .beacon_int_infra_match = true,
1927 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1929 * struct ieee80211_iface_limit limits2[] = {
1930 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1931 * BIT(NL80211_IFTYPE_P2P_GO), },
1933 * struct ieee80211_iface_combination combination2 = {
1934 * .limits = limits2,
1935 * .n_limits = ARRAY_SIZE(limits2),
1936 * .max_interfaces = 8,
1937 * .num_different_channels = 1,
1941 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1942 * This allows for an infrastructure connection and three P2P connections.
1944 * struct ieee80211_iface_limit limits3[] = {
1945 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1946 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1947 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1949 * struct ieee80211_iface_combination combination3 = {
1950 * .limits = limits3,
1951 * .n_limits = ARRAY_SIZE(limits3),
1952 * .max_interfaces = 4,
1953 * .num_different_channels = 2,
1956 struct ieee80211_iface_combination
{
1957 const struct ieee80211_iface_limit
*limits
;
1958 u32 num_different_channels
;
1961 bool beacon_int_infra_match
;
1964 struct mac_address
{
1968 struct ieee80211_txrx_stypes
{
1973 * enum wiphy_wowlan_support_flags - WoWLAN support flags
1974 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
1975 * trigger that keeps the device operating as-is and
1976 * wakes up the host on any activity, for example a
1977 * received packet that passed filtering; note that the
1978 * packet should be preserved in that case
1979 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
1981 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
1982 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
1983 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
1984 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
1985 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
1986 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
1988 enum wiphy_wowlan_support_flags
{
1989 WIPHY_WOWLAN_ANY
= BIT(0),
1990 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
1991 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
1992 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
1993 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
1994 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
1995 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
1996 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
2000 * struct wiphy_wowlan_support - WoWLAN support data
2001 * @flags: see &enum wiphy_wowlan_support_flags
2002 * @n_patterns: number of supported wakeup patterns
2003 * (see nl80211.h for the pattern definition)
2004 * @pattern_max_len: maximum length of each pattern
2005 * @pattern_min_len: minimum length of each pattern
2007 struct wiphy_wowlan_support
{
2010 int pattern_max_len
;
2011 int pattern_min_len
;
2015 * struct wiphy - wireless hardware description
2016 * @reg_notifier: the driver's regulatory notification callback,
2017 * note that if your driver uses wiphy_apply_custom_regulatory()
2018 * the reg_notifier's request can be passed as NULL
2019 * @regd: the driver's regulatory domain, if one was requested via
2020 * the regulatory_hint() API. This can be used by the driver
2021 * on the reg_notifier() if it chooses to ignore future
2022 * regulatory domain changes caused by other drivers.
2023 * @signal_type: signal type reported in &struct cfg80211_bss.
2024 * @cipher_suites: supported cipher suites
2025 * @n_cipher_suites: number of supported cipher suites
2026 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2027 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2028 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2029 * -1 = fragmentation disabled, only odd values >= 256 used
2030 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2031 * @_net: the network namespace this wiphy currently lives in
2032 * @perm_addr: permanent MAC address of this device
2033 * @addr_mask: If the device supports multiple MAC addresses by masking,
2034 * set this to a mask with variable bits set to 1, e.g. if the last
2035 * four bits are variable then set it to 00:...:00:0f. The actual
2036 * variable bits shall be determined by the interfaces added, with
2037 * interfaces not matching the mask being rejected to be brought up.
2038 * @n_addresses: number of addresses in @addresses.
2039 * @addresses: If the device has more than one address, set this pointer
2040 * to a list of addresses (6 bytes each). The first one will be used
2041 * by default for perm_addr. In this case, the mask should be set to
2042 * all-zeroes. In this case it is assumed that the device can handle
2043 * the same number of arbitrary MAC addresses.
2044 * @registered: protects ->resume and ->suspend sysfs callbacks against
2045 * unregister hardware
2046 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2047 * automatically on wiphy renames
2048 * @dev: (virtual) struct device for this wiphy
2049 * @registered: helps synchronize suspend/resume with wiphy unregister
2050 * @wext: wireless extension handlers
2051 * @priv: driver private data (sized according to wiphy_new() parameter)
2052 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2053 * must be set by driver
2054 * @iface_combinations: Valid interface combinations array, should not
2055 * list single interface types.
2056 * @n_iface_combinations: number of entries in @iface_combinations array.
2057 * @software_iftypes: bitmask of software interface types, these are not
2058 * subject to any restrictions since they are purely managed in SW.
2059 * @flags: wiphy flags, see &enum wiphy_flags
2060 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2061 * @bss_priv_size: each BSS struct has private data allocated with it,
2062 * this variable determines its size
2063 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2065 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2066 * for in any given scheduled scan
2067 * @max_match_sets: maximum number of match sets the device can handle
2068 * when performing a scheduled scan, 0 if filtering is not
2070 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2071 * add to probe request frames transmitted during a scan, must not
2072 * include fixed IEs like supported rates
2073 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2075 * @coverage_class: current coverage class
2076 * @fw_version: firmware version for ethtool reporting
2077 * @hw_version: hardware version for ethtool reporting
2078 * @max_num_pmkids: maximum number of PMKIDs supported by device
2079 * @privid: a pointer that drivers can use to identify if an arbitrary
2080 * wiphy is theirs, e.g. in global notifiers
2081 * @bands: information about bands/channels supported by this device
2083 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2084 * transmitted through nl80211, points to an array indexed by interface
2087 * @available_antennas_tx: bitmap of antennas which are available to be
2088 * configured as TX antennas. Antenna configuration commands will be
2089 * rejected unless this or @available_antennas_rx is set.
2091 * @available_antennas_rx: bitmap of antennas which are available to be
2092 * configured as RX antennas. Antenna configuration commands will be
2093 * rejected unless this or @available_antennas_tx is set.
2095 * @probe_resp_offload:
2096 * Bitmap of supported protocols for probe response offloading.
2097 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2098 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2100 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2101 * may request, if implemented.
2103 * @wowlan: WoWLAN support information
2105 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2106 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2107 * If null, then none can be over-ridden.
2110 /* assign these fields before you register the wiphy */
2112 /* permanent MAC address(es) */
2113 u8 perm_addr
[ETH_ALEN
];
2114 u8 addr_mask
[ETH_ALEN
];
2116 struct mac_address
*addresses
;
2118 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2120 const struct ieee80211_iface_combination
*iface_combinations
;
2121 int n_iface_combinations
;
2122 u16 software_iftypes
;
2126 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2127 u16 interface_modes
;
2129 u32 flags
, features
;
2133 enum cfg80211_signal_type signal_type
;
2137 u8 max_sched_scan_ssids
;
2139 u16 max_scan_ie_len
;
2140 u16 max_sched_scan_ie_len
;
2142 int n_cipher_suites
;
2143 const u32
*cipher_suites
;
2151 char fw_version
[ETHTOOL_BUSINFO_LEN
];
2154 struct wiphy_wowlan_support wowlan
;
2156 u16 max_remain_on_channel_duration
;
2160 u32 available_antennas_tx
;
2161 u32 available_antennas_rx
;
2164 * Bitmap of supported protocols for probe response offloading
2165 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2166 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2168 u32 probe_resp_offload
;
2170 /* If multiple wiphys are registered and you're handed e.g.
2171 * a regular netdev with assigned ieee80211_ptr, you won't
2172 * know whether it points to a wiphy your driver has registered
2173 * or not. Assign this to something global to your driver to
2174 * help determine whether you own this wiphy or not. */
2177 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
2179 /* Lets us get back the wiphy on the callback */
2180 int (*reg_notifier
)(struct wiphy
*wiphy
,
2181 struct regulatory_request
*request
);
2183 /* fields below are read-only, assigned by cfg80211 */
2185 const struct ieee80211_regdomain
*regd
;
2187 /* the item in /sys/class/ieee80211/ points to this,
2188 * you need use set_wiphy_dev() (see below) */
2191 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2194 /* dir in debugfs: ieee80211/<wiphyname> */
2195 struct dentry
*debugfsdir
;
2197 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
2199 #ifdef CONFIG_NET_NS
2200 /* the network namespace this phy lives in currently */
2204 #ifdef CONFIG_CFG80211_WEXT
2205 const struct iw_handler_def
*wext
;
2208 char priv
[0] __attribute__((__aligned__(NETDEV_ALIGN
)));
2211 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
2213 return read_pnet(&wiphy
->_net
);
2216 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
2218 write_pnet(&wiphy
->_net
, net
);
2222 * wiphy_priv - return priv from wiphy
2224 * @wiphy: the wiphy whose priv pointer to return
2226 static inline void *wiphy_priv(struct wiphy
*wiphy
)
2229 return &wiphy
->priv
;
2233 * priv_to_wiphy - return the wiphy containing the priv
2235 * @priv: a pointer previously returned by wiphy_priv
2237 static inline struct wiphy
*priv_to_wiphy(void *priv
)
2240 return container_of(priv
, struct wiphy
, priv
);
2244 * set_wiphy_dev - set device pointer for wiphy
2246 * @wiphy: The wiphy whose device to bind
2247 * @dev: The device to parent it to
2249 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
2251 wiphy
->dev
.parent
= dev
;
2255 * wiphy_dev - get wiphy dev pointer
2257 * @wiphy: The wiphy whose device struct to look up
2259 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
2261 return wiphy
->dev
.parent
;
2265 * wiphy_name - get wiphy name
2267 * @wiphy: The wiphy whose name to return
2269 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
2271 return dev_name(&wiphy
->dev
);
2275 * wiphy_new - create a new wiphy for use with cfg80211
2277 * @ops: The configuration operations for this device
2278 * @sizeof_priv: The size of the private area to allocate
2280 * Create a new wiphy and associate the given operations with it.
2281 * @sizeof_priv bytes are allocated for private use.
2283 * The returned pointer must be assigned to each netdev's
2284 * ieee80211_ptr for proper operation.
2286 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
2289 * wiphy_register - register a wiphy with cfg80211
2291 * @wiphy: The wiphy to register.
2293 * Returns a non-negative wiphy index or a negative error code.
2295 extern int wiphy_register(struct wiphy
*wiphy
);
2298 * wiphy_unregister - deregister a wiphy from cfg80211
2300 * @wiphy: The wiphy to unregister.
2302 * After this call, no more requests can be made with this priv
2303 * pointer, but the call may sleep to wait for an outstanding
2304 * request that is being handled.
2306 extern void wiphy_unregister(struct wiphy
*wiphy
);
2309 * wiphy_free - free wiphy
2311 * @wiphy: The wiphy to free
2313 extern void wiphy_free(struct wiphy
*wiphy
);
2315 /* internal structs */
2316 struct cfg80211_conn
;
2317 struct cfg80211_internal_bss
;
2318 struct cfg80211_cached_keys
;
2321 * struct wireless_dev - wireless per-netdev state
2323 * This structure must be allocated by the driver/stack
2324 * that uses the ieee80211_ptr field in struct net_device
2325 * (this is intentional so it can be allocated along with
2328 * @wiphy: pointer to hardware description
2329 * @iftype: interface type
2330 * @list: (private) Used to collect the interfaces
2331 * @netdev: (private) Used to reference back to the netdev
2332 * @current_bss: (private) Used by the internal configuration code
2333 * @channel: (private) Used by the internal configuration code to track
2334 * the user-set AP, monitor and WDS channel
2335 * @preset_chan: (private) Used by the internal configuration code to
2336 * track the channel to be used for AP later
2337 * @preset_chantype: (private) the corresponding channel type
2338 * @bssid: (private) Used by the internal configuration code
2339 * @ssid: (private) Used by the internal configuration code
2340 * @ssid_len: (private) Used by the internal configuration code
2341 * @mesh_id_len: (private) Used by the internal configuration code
2342 * @mesh_id_up_len: (private) Used by the internal configuration code
2343 * @wext: (private) Used by the internal wireless extensions compat code
2344 * @use_4addr: indicates 4addr mode is used on this interface, must be
2345 * set by driver (if supported) on add_interface BEFORE registering the
2346 * netdev and may otherwise be used by driver read-only, will be update
2347 * by cfg80211 on change_interface
2348 * @mgmt_registrations: list of registrations for management frames
2349 * @mgmt_registrations_lock: lock for the list
2350 * @mtx: mutex used to lock data in this struct
2351 * @cleanup_work: work struct used for cleanup that can't be done directly
2352 * @beacon_interval: beacon interval used on this device for transmitting
2353 * beacons, 0 when not valid
2355 struct wireless_dev
{
2356 struct wiphy
*wiphy
;
2357 enum nl80211_iftype iftype
;
2359 /* the remainder of this struct should be private to cfg80211 */
2360 struct list_head list
;
2361 struct net_device
*netdev
;
2363 struct list_head mgmt_registrations
;
2364 spinlock_t mgmt_registrations_lock
;
2368 struct work_struct cleanup_work
;
2372 /* currently used for IBSS and SME - might be rearranged later */
2373 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2374 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
2377 CFG80211_SME_CONNECTING
,
2378 CFG80211_SME_CONNECTED
,
2380 struct cfg80211_conn
*conn
;
2381 struct cfg80211_cached_keys
*connect_keys
;
2383 struct list_head event_list
;
2384 spinlock_t event_lock
;
2386 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
2387 struct ieee80211_channel
*preset_chan
;
2388 enum nl80211_channel_type preset_chantype
;
2393 int beacon_interval
;
2395 u32 ap_unexpected_nlpid
;
2397 #ifdef CONFIG_CFG80211_WEXT
2400 struct cfg80211_ibss_params ibss
;
2401 struct cfg80211_connect_params connect
;
2402 struct cfg80211_cached_keys
*keys
;
2405 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
2406 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2407 s8 default_key
, default_mgmt_key
;
2408 bool prev_bssid_valid
;
2414 * wdev_priv - return wiphy priv from wireless_dev
2416 * @wdev: The wireless device whose wiphy's priv pointer to return
2418 static inline void *wdev_priv(struct wireless_dev
*wdev
)
2421 return wiphy_priv(wdev
->wiphy
);
2425 * DOC: Utility functions
2427 * cfg80211 offers a number of utility functions that can be useful.
2431 * ieee80211_channel_to_frequency - convert channel number to frequency
2432 * @chan: channel number
2433 * @band: band, necessary due to channel number overlap
2435 extern int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
2438 * ieee80211_frequency_to_channel - convert frequency to channel number
2439 * @freq: center frequency
2441 extern int ieee80211_frequency_to_channel(int freq
);
2444 * Name indirection necessary because the ieee80211 code also has
2445 * a function named "ieee80211_get_channel", so if you include
2446 * cfg80211's header file you get cfg80211's version, if you try
2447 * to include both header files you'll (rightfully!) get a symbol
2450 extern struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
2453 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2454 * @wiphy: the struct wiphy to get the channel for
2455 * @freq: the center frequency of the channel
2457 static inline struct ieee80211_channel
*
2458 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
2460 return __ieee80211_get_channel(wiphy
, freq
);
2464 * ieee80211_get_response_rate - get basic rate for a given rate
2466 * @sband: the band to look for rates in
2467 * @basic_rates: bitmap of basic rates
2468 * @bitrate: the bitrate for which to find the basic rate
2470 * This function returns the basic rate corresponding to a given
2471 * bitrate, that is the next lower bitrate contained in the basic
2472 * rate map, which is, for this function, given as a bitmap of
2473 * indices of rates in the band's bitrate table.
2475 struct ieee80211_rate
*
2476 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
2477 u32 basic_rates
, int bitrate
);
2480 * Radiotap parsing functions -- for controlled injection support
2482 * Implemented in net/wireless/radiotap.c
2483 * Documentation in Documentation/networking/radiotap-headers.txt
2486 struct radiotap_align_size
{
2487 uint8_t align
:4, size
:4;
2490 struct ieee80211_radiotap_namespace
{
2491 const struct radiotap_align_size
*align_size
;
2497 struct ieee80211_radiotap_vendor_namespaces
{
2498 const struct ieee80211_radiotap_namespace
*ns
;
2503 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2504 * @this_arg_index: index of current arg, valid after each successful call
2505 * to ieee80211_radiotap_iterator_next()
2506 * @this_arg: pointer to current radiotap arg; it is valid after each
2507 * call to ieee80211_radiotap_iterator_next() but also after
2508 * ieee80211_radiotap_iterator_init() where it will point to
2509 * the beginning of the actual data portion
2510 * @this_arg_size: length of the current arg, for convenience
2511 * @current_namespace: pointer to the current namespace definition
2512 * (or internally %NULL if the current namespace is unknown)
2513 * @is_radiotap_ns: indicates whether the current namespace is the default
2514 * radiotap namespace or not
2516 * @_rtheader: pointer to the radiotap header we are walking through
2517 * @_max_length: length of radiotap header in cpu byte ordering
2518 * @_arg_index: next argument index
2519 * @_arg: next argument pointer
2520 * @_next_bitmap: internal pointer to next present u32
2521 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2522 * @_vns: vendor namespace definitions
2523 * @_next_ns_data: beginning of the next namespace's data
2524 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2527 * Describes the radiotap parser state. Fields prefixed with an underscore
2528 * must not be used by users of the parser, only by the parser internally.
2531 struct ieee80211_radiotap_iterator
{
2532 struct ieee80211_radiotap_header
*_rtheader
;
2533 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
2534 const struct ieee80211_radiotap_namespace
*current_namespace
;
2536 unsigned char *_arg
, *_next_ns_data
;
2537 __le32
*_next_bitmap
;
2539 unsigned char *this_arg
;
2547 uint32_t _bitmap_shifter
;
2551 extern int ieee80211_radiotap_iterator_init(
2552 struct ieee80211_radiotap_iterator
*iterator
,
2553 struct ieee80211_radiotap_header
*radiotap_header
,
2554 int max_length
, const struct ieee80211_radiotap_vendor_namespaces
*vns
);
2556 extern int ieee80211_radiotap_iterator_next(
2557 struct ieee80211_radiotap_iterator
*iterator
);
2560 extern const unsigned char rfc1042_header
[6];
2561 extern const unsigned char bridge_tunnel_header
[6];
2564 * ieee80211_get_hdrlen_from_skb - get header length from data
2566 * Given an skb with a raw 802.11 header at the data pointer this function
2567 * returns the 802.11 header length in bytes (not including encryption
2568 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2569 * header the function returns 0.
2573 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
2576 * ieee80211_hdrlen - get header length in bytes from frame control
2577 * @fc: frame control field in little-endian format
2579 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
2582 * DOC: Data path helpers
2584 * In addition to generic utilities, cfg80211 also offers
2585 * functions that help implement the data path for devices
2586 * that do not do the 802.11/802.3 conversion on the device.
2590 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2591 * @skb: the 802.11 data frame
2592 * @addr: the device MAC address
2593 * @iftype: the virtual interface type
2595 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
2596 enum nl80211_iftype iftype
);
2599 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2600 * @skb: the 802.3 frame
2601 * @addr: the device MAC address
2602 * @iftype: the virtual interface type
2603 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2604 * @qos: build 802.11 QoS data frame
2606 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
2607 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
2610 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2612 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2613 * 802.3 frames. The @list will be empty if the decode fails. The
2614 * @skb is consumed after the function returns.
2616 * @skb: The input IEEE 802.11n A-MSDU frame.
2617 * @list: The output list of 802.3 frames. It must be allocated and
2618 * initialized by by the caller.
2619 * @addr: The device MAC address.
2620 * @iftype: The device interface type.
2621 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2622 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2624 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
2625 const u8
*addr
, enum nl80211_iftype iftype
,
2626 const unsigned int extra_headroom
,
2627 bool has_80211_header
);
2630 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2631 * @skb: the data frame
2633 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
);
2636 * cfg80211_find_ie - find information element in data
2639 * @ies: data consisting of IEs
2640 * @len: length of data
2642 * This function will return %NULL if the element ID could
2643 * not be found or if the element is invalid (claims to be
2644 * longer than the given data), or a pointer to the first byte
2645 * of the requested element, that is the byte containing the
2646 * element ID. There are no checks on the element length
2647 * other than having to fit into the given data.
2649 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
2652 * cfg80211_find_vendor_ie - find vendor specific information element in data
2655 * @oui_type: vendor-specific OUI type
2656 * @ies: data consisting of IEs
2657 * @len: length of data
2659 * This function will return %NULL if the vendor specific element ID
2660 * could not be found or if the element is invalid (claims to be
2661 * longer than the given data), or a pointer to the first byte
2662 * of the requested element, that is the byte containing the
2663 * element ID. There are no checks on the element length
2664 * other than having to fit into the given data.
2666 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
2667 const u8
*ies
, int len
);
2670 * DOC: Regulatory enforcement infrastructure
2676 * regulatory_hint - driver hint to the wireless core a regulatory domain
2677 * @wiphy: the wireless device giving the hint (used only for reporting
2679 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2680 * should be in. If @rd is set this should be NULL. Note that if you
2681 * set this to NULL you should still set rd->alpha2 to some accepted
2684 * Wireless drivers can use this function to hint to the wireless core
2685 * what it believes should be the current regulatory domain by
2686 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2687 * domain should be in or by providing a completely build regulatory domain.
2688 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2689 * for a regulatory domain structure for the respective country.
2691 * The wiphy must have been registered to cfg80211 prior to this call.
2692 * For cfg80211 drivers this means you must first use wiphy_register(),
2693 * for mac80211 drivers you must first use ieee80211_register_hw().
2695 * Drivers should check the return value, its possible you can get
2698 extern int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
2701 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2702 * @wiphy: the wireless device we want to process the regulatory domain on
2703 * @regd: the custom regulatory domain to use for this wiphy
2705 * Drivers can sometimes have custom regulatory domains which do not apply
2706 * to a specific country. Drivers can use this to apply such custom regulatory
2707 * domains. This routine must be called prior to wiphy registration. The
2708 * custom regulatory domain will be trusted completely and as such previous
2709 * default channel settings will be disregarded. If no rule is found for a
2710 * channel on the regulatory domain the channel will be disabled.
2712 extern void wiphy_apply_custom_regulatory(
2713 struct wiphy
*wiphy
,
2714 const struct ieee80211_regdomain
*regd
);
2717 * freq_reg_info - get regulatory information for the given frequency
2718 * @wiphy: the wiphy for which we want to process this rule for
2719 * @center_freq: Frequency in KHz for which we want regulatory information for
2720 * @desired_bw_khz: the desired max bandwidth you want to use per
2721 * channel. Note that this is still 20 MHz if you want to use HT40
2722 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2723 * If set to 0 we'll assume you want the standard 20 MHz.
2724 * @reg_rule: the regulatory rule which we have for this frequency
2726 * Use this function to get the regulatory rule for a specific frequency on
2727 * a given wireless device. If the device has a specific regulatory domain
2728 * it wants to follow we respect that unless a country IE has been received
2729 * and processed already.
2731 * Returns 0 if it was able to find a valid regulatory rule which does
2732 * apply to the given center_freq otherwise it returns non-zero. It will
2733 * also return -ERANGE if we determine the given center_freq does not even have
2734 * a regulatory rule for a frequency range in the center_freq's band. See
2735 * freq_in_rule_band() for our current definition of a band -- this is purely
2736 * subjective and right now its 802.11 specific.
2738 extern int freq_reg_info(struct wiphy
*wiphy
,
2741 const struct ieee80211_reg_rule
**reg_rule
);
2744 * callbacks for asynchronous cfg80211 methods, notification
2745 * functions and BSS handling helpers
2749 * cfg80211_scan_done - notify that scan finished
2751 * @request: the corresponding scan request
2752 * @aborted: set to true if the scan was aborted for any reason,
2753 * userspace will be notified of that
2755 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
2758 * cfg80211_sched_scan_results - notify that new scan results are available
2760 * @wiphy: the wiphy which got scheduled scan results
2762 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
2765 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2767 * @wiphy: the wiphy on which the scheduled scan stopped
2769 * The driver can call this function to inform cfg80211 that the
2770 * scheduled scan had to be stopped, for whatever reason. The driver
2771 * is then called back via the sched_scan_stop operation when done.
2773 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
2776 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2778 * @wiphy: the wiphy reporting the BSS
2779 * @channel: The channel the frame was received on
2780 * @mgmt: the management frame (probe response or beacon)
2781 * @len: length of the management frame
2782 * @signal: the signal strength, type depends on the wiphy's signal_type
2783 * @gfp: context flags
2785 * This informs cfg80211 that BSS information was found and
2786 * the BSS should be updated/added.
2788 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2790 struct cfg80211_bss
* __must_check
2791 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
2792 struct ieee80211_channel
*channel
,
2793 struct ieee80211_mgmt
*mgmt
, size_t len
,
2794 s32 signal
, gfp_t gfp
);
2797 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2799 * @wiphy: the wiphy reporting the BSS
2800 * @channel: The channel the frame was received on
2801 * @bssid: the BSSID of the BSS
2802 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
2803 * @capability: the capability field sent by the peer
2804 * @beacon_interval: the beacon interval announced by the peer
2805 * @ie: additional IEs sent by the peer
2806 * @ielen: length of the additional IEs
2807 * @signal: the signal strength, type depends on the wiphy's signal_type
2808 * @gfp: context flags
2810 * This informs cfg80211 that BSS information was found and
2811 * the BSS should be updated/added.
2813 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2815 struct cfg80211_bss
* __must_check
2816 cfg80211_inform_bss(struct wiphy
*wiphy
,
2817 struct ieee80211_channel
*channel
,
2818 const u8
*bssid
, u64 tsf
, u16 capability
,
2819 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
2820 s32 signal
, gfp_t gfp
);
2822 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
2823 struct ieee80211_channel
*channel
,
2825 const u8
*ssid
, size_t ssid_len
,
2826 u16 capa_mask
, u16 capa_val
);
2827 static inline struct cfg80211_bss
*
2828 cfg80211_get_ibss(struct wiphy
*wiphy
,
2829 struct ieee80211_channel
*channel
,
2830 const u8
*ssid
, size_t ssid_len
)
2832 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
2833 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
2836 struct cfg80211_bss
*cfg80211_get_mesh(struct wiphy
*wiphy
,
2837 struct ieee80211_channel
*channel
,
2838 const u8
*meshid
, size_t meshidlen
,
2841 * cfg80211_ref_bss - reference BSS struct
2842 * @bss: the BSS struct to reference
2844 * Increments the refcount of the given BSS struct.
2846 void cfg80211_ref_bss(struct cfg80211_bss
*bss
);
2849 * cfg80211_put_bss - unref BSS struct
2850 * @bss: the BSS struct
2852 * Decrements the refcount of the given BSS struct.
2854 void cfg80211_put_bss(struct cfg80211_bss
*bss
);
2857 * cfg80211_unlink_bss - unlink BSS from internal data structures
2859 * @bss: the bss to remove
2861 * This function removes the given BSS from the internal data structures
2862 * thereby making it no longer show up in scan results etc. Use this
2863 * function when you detect a BSS is gone. Normally BSSes will also time
2864 * out, so it is not necessary to use this function at all.
2866 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
2869 * cfg80211_send_rx_auth - notification of processed authentication
2870 * @dev: network device
2871 * @buf: authentication frame (header + body)
2872 * @len: length of the frame data
2874 * This function is called whenever an authentication has been processed in
2875 * station mode. The driver is required to call either this function or
2876 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2877 * call. This function may sleep.
2879 void cfg80211_send_rx_auth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2882 * cfg80211_send_auth_timeout - notification of timed out authentication
2883 * @dev: network device
2884 * @addr: The MAC address of the device with which the authentication timed out
2886 * This function may sleep.
2888 void cfg80211_send_auth_timeout(struct net_device
*dev
, const u8
*addr
);
2891 * cfg80211_send_rx_assoc - notification of processed association
2892 * @dev: network device
2893 * @bss: the BSS struct association was requested for, the struct reference
2894 * is owned by cfg80211 after this call
2895 * @buf: (re)association response frame (header + body)
2896 * @len: length of the frame data
2898 * This function is called whenever a (re)association response has been
2899 * processed in station mode. The driver is required to call either this
2900 * function or cfg80211_send_assoc_timeout() to indicate the result of
2901 * cfg80211_ops::assoc() call. This function may sleep.
2903 void cfg80211_send_rx_assoc(struct net_device
*dev
, struct cfg80211_bss
*bss
,
2904 const u8
*buf
, size_t len
);
2907 * cfg80211_send_assoc_timeout - notification of timed out association
2908 * @dev: network device
2909 * @addr: The MAC address of the device with which the association timed out
2911 * This function may sleep.
2913 void cfg80211_send_assoc_timeout(struct net_device
*dev
, const u8
*addr
);
2916 * cfg80211_send_deauth - notification of processed deauthentication
2917 * @dev: network device
2918 * @buf: deauthentication frame (header + body)
2919 * @len: length of the frame data
2921 * This function is called whenever deauthentication has been processed in
2922 * station mode. This includes both received deauthentication frames and
2923 * locally generated ones. This function may sleep.
2925 void cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2928 * __cfg80211_send_deauth - notification of processed deauthentication
2929 * @dev: network device
2930 * @buf: deauthentication frame (header + body)
2931 * @len: length of the frame data
2933 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2935 void __cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2938 * cfg80211_send_disassoc - notification of processed disassociation
2939 * @dev: network device
2940 * @buf: disassociation response frame (header + body)
2941 * @len: length of the frame data
2943 * This function is called whenever disassociation has been processed in
2944 * station mode. This includes both received disassociation frames and locally
2945 * generated ones. This function may sleep.
2947 void cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
, size_t len
);
2950 * __cfg80211_send_disassoc - notification of processed disassociation
2951 * @dev: network device
2952 * @buf: disassociation response frame (header + body)
2953 * @len: length of the frame data
2955 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2957 void __cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
,
2961 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
2962 * @dev: network device
2963 * @buf: deauthentication frame (header + body)
2964 * @len: length of the frame data
2966 * This function is called whenever a received Deauthentication frame has been
2967 * dropped in station mode because of MFP being used but the Deauthentication
2968 * frame was not protected. This function may sleep.
2970 void cfg80211_send_unprot_deauth(struct net_device
*dev
, const u8
*buf
,
2974 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
2975 * @dev: network device
2976 * @buf: disassociation frame (header + body)
2977 * @len: length of the frame data
2979 * This function is called whenever a received Disassociation frame has been
2980 * dropped in station mode because of MFP being used but the Disassociation
2981 * frame was not protected. This function may sleep.
2983 void cfg80211_send_unprot_disassoc(struct net_device
*dev
, const u8
*buf
,
2987 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2988 * @dev: network device
2989 * @addr: The source MAC address of the frame
2990 * @key_type: The key type that the received frame used
2991 * @key_id: Key identifier (0..3). Can be -1 if missing.
2992 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2993 * @gfp: allocation flags
2995 * This function is called whenever the local MAC detects a MIC failure in a
2996 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
2999 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
3000 enum nl80211_key_type key_type
, int key_id
,
3001 const u8
*tsc
, gfp_t gfp
);
3004 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3006 * @dev: network device
3007 * @bssid: the BSSID of the IBSS joined
3008 * @gfp: allocation flags
3010 * This function notifies cfg80211 that the device joined an IBSS or
3011 * switched to a different BSSID. Before this function can be called,
3012 * either a beacon has to have been received from the IBSS, or one of
3013 * the cfg80211_inform_bss{,_frame} functions must have been called
3014 * with the locally generated beacon -- this guarantees that there is
3015 * always a scan result for this IBSS. cfg80211 will handle the rest.
3017 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
, gfp_t gfp
);
3020 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3022 * @dev: network device
3023 * @macaddr: the MAC address of the new candidate
3024 * @ie: information elements advertised by the peer candidate
3025 * @ie_len: lenght of the information elements buffer
3026 * @gfp: allocation flags
3028 * This function notifies cfg80211 that the mesh peer candidate has been
3029 * detected, most likely via a beacon or, less likely, via a probe response.
3030 * cfg80211 then sends a notification to userspace.
3032 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3033 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3036 * DOC: RFkill integration
3038 * RFkill integration in cfg80211 is almost invisible to drivers,
3039 * as cfg80211 automatically registers an rfkill instance for each
3040 * wireless device it knows about. Soft kill is also translated
3041 * into disconnecting and turning all interfaces off, drivers are
3042 * expected to turn off the device when all interfaces are down.
3044 * However, devices may have a hard RFkill line, in which case they
3045 * also need to interact with the rfkill subsystem, via cfg80211.
3046 * They can do this with a few helper functions documented here.
3050 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3052 * @blocked: block status
3054 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
3057 * wiphy_rfkill_start_polling - start polling rfkill
3060 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
3063 * wiphy_rfkill_stop_polling - stop polling rfkill
3066 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
3068 #ifdef CONFIG_NL80211_TESTMODE
3072 * Test mode is a set of utility functions to allow drivers to
3073 * interact with driver-specific tools to aid, for instance,
3074 * factory programming.
3076 * This chapter describes how drivers interact with it, for more
3077 * information see the nl80211 book's chapter on it.
3081 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3083 * @approxlen: an upper bound of the length of the data that will
3084 * be put into the skb
3086 * This function allocates and pre-fills an skb for a reply to
3087 * the testmode command. Since it is intended for a reply, calling
3088 * it outside of the @testmode_cmd operation is invalid.
3090 * The returned skb (or %NULL if any errors happen) is pre-filled
3091 * with the wiphy index and set up in a way that any data that is
3092 * put into the skb (with skb_put(), nla_put() or similar) will end
3093 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
3094 * needs to be done with the skb is adding data for the corresponding
3095 * userspace tool which can then read that data out of the testdata
3096 * attribute. You must not modify the skb in any other way.
3098 * When done, call cfg80211_testmode_reply() with the skb and return
3099 * its error code as the result of the @testmode_cmd operation.
3101 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
3105 * cfg80211_testmode_reply - send the reply skb
3106 * @skb: The skb, must have been allocated with
3107 * cfg80211_testmode_alloc_reply_skb()
3109 * Returns an error code or 0 on success, since calling this
3110 * function will usually be the last thing before returning
3111 * from the @testmode_cmd you should return the error code.
3112 * Note that this function consumes the skb regardless of the
3115 int cfg80211_testmode_reply(struct sk_buff
*skb
);
3118 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3120 * @approxlen: an upper bound of the length of the data that will
3121 * be put into the skb
3122 * @gfp: allocation flags
3124 * This function allocates and pre-fills an skb for an event on the
3125 * testmode multicast group.
3127 * The returned skb (or %NULL if any errors happen) is set up in the
3128 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3129 * for an event. As there, you should simply add data to it that will
3130 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3131 * not modify the skb in any other way.
3133 * When done filling the skb, call cfg80211_testmode_event() with the
3134 * skb to send the event.
3136 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
3137 int approxlen
, gfp_t gfp
);
3140 * cfg80211_testmode_event - send the event
3141 * @skb: The skb, must have been allocated with
3142 * cfg80211_testmode_alloc_event_skb()
3143 * @gfp: allocation flags
3145 * This function sends the given @skb, which must have been allocated
3146 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3149 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
);
3151 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3152 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3154 #define CFG80211_TESTMODE_CMD(cmd)
3155 #define CFG80211_TESTMODE_DUMP(cmd)
3159 * cfg80211_connect_result - notify cfg80211 of connection result
3161 * @dev: network device
3162 * @bssid: the BSSID of the AP
3163 * @req_ie: association request IEs (maybe be %NULL)
3164 * @req_ie_len: association request IEs length
3165 * @resp_ie: association response IEs (may be %NULL)
3166 * @resp_ie_len: assoc response IEs length
3167 * @status: status code, 0 for successful connection, use
3168 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3169 * the real status code for failures.
3170 * @gfp: allocation flags
3172 * It should be called by the underlying driver whenever connect() has
3175 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
3176 const u8
*req_ie
, size_t req_ie_len
,
3177 const u8
*resp_ie
, size_t resp_ie_len
,
3178 u16 status
, gfp_t gfp
);
3181 * cfg80211_roamed - notify cfg80211 of roaming
3183 * @dev: network device
3184 * @channel: the channel of the new AP
3185 * @bssid: the BSSID of the new AP
3186 * @req_ie: association request IEs (maybe be %NULL)
3187 * @req_ie_len: association request IEs length
3188 * @resp_ie: association response IEs (may be %NULL)
3189 * @resp_ie_len: assoc response IEs length
3190 * @gfp: allocation flags
3192 * It should be called by the underlying driver whenever it roamed
3193 * from one AP to another while connected.
3195 void cfg80211_roamed(struct net_device
*dev
,
3196 struct ieee80211_channel
*channel
,
3198 const u8
*req_ie
, size_t req_ie_len
,
3199 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3202 * cfg80211_roamed_bss - notify cfg80211 of roaming
3204 * @dev: network device
3205 * @bss: entry of bss to which STA got roamed
3206 * @req_ie: association request IEs (maybe be %NULL)
3207 * @req_ie_len: association request IEs length
3208 * @resp_ie: association response IEs (may be %NULL)
3209 * @resp_ie_len: assoc response IEs length
3210 * @gfp: allocation flags
3212 * This is just a wrapper to notify cfg80211 of roaming event with driver
3213 * passing bss to avoid a race in timeout of the bss entry. It should be
3214 * called by the underlying driver whenever it roamed from one AP to another
3215 * while connected. Drivers which have roaming implemented in firmware
3216 * may use this function to avoid a race in bss entry timeout where the bss
3217 * entry of the new AP is seen in the driver, but gets timed out by the time
3218 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3219 * rdev->event_work. In case of any failures, the reference is released
3220 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3221 * it will be released while diconneting from the current bss.
3223 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
3224 const u8
*req_ie
, size_t req_ie_len
,
3225 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3228 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3230 * @dev: network device
3231 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3232 * @ie_len: length of IEs
3233 * @reason: reason code for the disconnection, set it to 0 if unknown
3234 * @gfp: allocation flags
3236 * After it calls this function, the driver should enter an idle state
3237 * and not try to connect to any AP any more.
3239 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
3240 u8
*ie
, size_t ie_len
, gfp_t gfp
);
3243 * cfg80211_ready_on_channel - notification of remain_on_channel start
3244 * @dev: network device
3245 * @cookie: the request cookie
3246 * @chan: The current channel (from remain_on_channel request)
3247 * @channel_type: Channel type
3248 * @duration: Duration in milliseconds that the driver intents to remain on the
3250 * @gfp: allocation flags
3252 void cfg80211_ready_on_channel(struct net_device
*dev
, u64 cookie
,
3253 struct ieee80211_channel
*chan
,
3254 enum nl80211_channel_type channel_type
,
3255 unsigned int duration
, gfp_t gfp
);
3258 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3259 * @dev: network device
3260 * @cookie: the request cookie
3261 * @chan: The current channel (from remain_on_channel request)
3262 * @channel_type: Channel type
3263 * @gfp: allocation flags
3265 void cfg80211_remain_on_channel_expired(struct net_device
*dev
,
3267 struct ieee80211_channel
*chan
,
3268 enum nl80211_channel_type channel_type
,
3273 * cfg80211_new_sta - notify userspace about station
3276 * @mac_addr: the station's address
3277 * @sinfo: the station information
3278 * @gfp: allocation flags
3280 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
3281 struct station_info
*sinfo
, gfp_t gfp
);
3284 * cfg80211_del_sta - notify userspace about deletion of a station
3287 * @mac_addr: the station's address
3288 * @gfp: allocation flags
3290 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
3293 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3294 * @dev: network device
3295 * @freq: Frequency on which the frame was received in MHz
3296 * @sig_dbm: signal strength in mBm, or 0 if unknown
3297 * @buf: Management frame (header + body)
3298 * @len: length of the frame data
3299 * @gfp: context flags
3301 * Returns %true if a user space application has registered for this frame.
3302 * For action frames, that makes it responsible for rejecting unrecognized
3303 * action frames; %false otherwise, in which case for action frames the
3304 * driver is responsible for rejecting the frame.
3306 * This function is called whenever an Action frame is received for a station
3307 * mode interface, but is not processed in kernel.
3309 bool cfg80211_rx_mgmt(struct net_device
*dev
, int freq
, int sig_dbm
,
3310 const u8
*buf
, size_t len
, gfp_t gfp
);
3313 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3314 * @dev: network device
3315 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3316 * @buf: Management frame (header + body)
3317 * @len: length of the frame data
3318 * @ack: Whether frame was acknowledged
3319 * @gfp: context flags
3321 * This function is called whenever a management frame was requested to be
3322 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3323 * transmission attempt.
3325 void cfg80211_mgmt_tx_status(struct net_device
*dev
, u64 cookie
,
3326 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
3330 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3331 * @dev: network device
3332 * @rssi_event: the triggered RSSI event
3333 * @gfp: context flags
3335 * This function is called when a configured connection quality monitoring
3336 * rssi threshold reached event occurs.
3338 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
3339 enum nl80211_cqm_rssi_threshold_event rssi_event
,
3343 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3344 * @dev: network device
3345 * @peer: peer's MAC address
3346 * @num_packets: how many packets were lost -- should be a fixed threshold
3347 * but probably no less than maybe 50, or maybe a throughput dependent
3348 * threshold (to account for temporary interference)
3349 * @gfp: context flags
3351 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
3352 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
3355 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3356 * @dev: network device
3357 * @bssid: BSSID of AP (to avoid races)
3358 * @replay_ctr: new replay counter
3359 * @gfp: allocation flags
3361 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
3362 const u8
*replay_ctr
, gfp_t gfp
);
3365 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3366 * @dev: network device
3367 * @index: candidate index (the smaller the index, the higher the priority)
3368 * @bssid: BSSID of AP
3369 * @preauth: Whether AP advertises support for RSN pre-authentication
3370 * @gfp: allocation flags
3372 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
3373 const u8
*bssid
, bool preauth
, gfp_t gfp
);
3376 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3377 * @dev: The device the frame matched to
3378 * @addr: the transmitter address
3379 * @gfp: context flags
3381 * This function is used in AP mode (only!) to inform userspace that
3382 * a spurious class 3 frame was received, to be able to deauth the
3384 * Returns %true if the frame was passed to userspace (or this failed
3385 * for a reason other than not having a subscription.)
3387 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
3388 const u8
*addr
, gfp_t gfp
);
3391 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3392 * @dev: The device the frame matched to
3393 * @addr: the transmitter address
3394 * @gfp: context flags
3396 * This function is used in AP mode (only!) to inform userspace that
3397 * an associated station sent a 4addr frame but that wasn't expected.
3398 * It is allowed and desirable to send this event only once for each
3399 * station to avoid event flooding.
3400 * Returns %true if the frame was passed to userspace (or this failed
3401 * for a reason other than not having a subscription.)
3403 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
3404 const u8
*addr
, gfp_t gfp
);
3407 * cfg80211_probe_status - notify userspace about probe status
3408 * @dev: the device the probe was sent on
3409 * @addr: the address of the peer
3410 * @cookie: the cookie filled in @probe_client previously
3411 * @acked: indicates whether probe was acked or not
3412 * @gfp: allocation flags
3414 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
3415 u64 cookie
, bool acked
, gfp_t gfp
);
3418 * cfg80211_report_obss_beacon - report beacon from other APs
3419 * @wiphy: The wiphy that received the beacon
3421 * @len: length of the frame
3422 * @freq: frequency the frame was received on
3423 * @sig_dbm: signal strength in mBm, or 0 if unknown
3424 * @gfp: allocation flags
3426 * Use this function to report to userspace when a beacon was
3427 * received. It is not useful to call this when there is no
3428 * netdev that is in AP/GO mode.
3430 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
3431 const u8
*frame
, size_t len
,
3432 int freq
, int sig_dbm
, gfp_t gfp
);
3435 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3437 * @chan: main channel
3438 * @channel_type: HT mode
3440 * This function returns true if there is no secondary channel or the secondary
3441 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3443 bool cfg80211_can_beacon_sec_chan(struct wiphy
*wiphy
,
3444 struct ieee80211_channel
*chan
,
3445 enum nl80211_channel_type channel_type
);
3448 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3449 * @dev: the device which switched channels
3450 * @freq: new channel frequency (in MHz)
3451 * @type: channel type
3453 * Acquires wdev_lock, so must only be called from sleepable driver context!
3455 void cfg80211_ch_switch_notify(struct net_device
*dev
, int freq
,
3456 enum nl80211_channel_type type
);
3459 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3460 * @rate: given rate_info to calculate bitrate from
3462 * return 0 if MCS index >= 32
3464 u16
cfg80211_calculate_bitrate(struct rate_info
*rate
);
3466 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3468 /* wiphy_printk helpers, similar to dev_printk */
3470 #define wiphy_printk(level, wiphy, format, args...) \
3471 dev_printk(level, &(wiphy)->dev, format, ##args)
3472 #define wiphy_emerg(wiphy, format, args...) \
3473 dev_emerg(&(wiphy)->dev, format, ##args)
3474 #define wiphy_alert(wiphy, format, args...) \
3475 dev_alert(&(wiphy)->dev, format, ##args)
3476 #define wiphy_crit(wiphy, format, args...) \
3477 dev_crit(&(wiphy)->dev, format, ##args)
3478 #define wiphy_err(wiphy, format, args...) \
3479 dev_err(&(wiphy)->dev, format, ##args)
3480 #define wiphy_warn(wiphy, format, args...) \
3481 dev_warn(&(wiphy)->dev, format, ##args)
3482 #define wiphy_notice(wiphy, format, args...) \
3483 dev_notice(&(wiphy)->dev, format, ##args)
3484 #define wiphy_info(wiphy, format, args...) \
3485 dev_info(&(wiphy)->dev, format, ##args)
3487 #define wiphy_debug(wiphy, format, args...) \
3488 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3490 #define wiphy_dbg(wiphy, format, args...) \
3491 dev_dbg(&(wiphy)->dev, format, ##args)
3493 #if defined(VERBOSE_DEBUG)
3494 #define wiphy_vdbg wiphy_dbg
3496 #define wiphy_vdbg(wiphy, format, args...) \
3499 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3505 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3506 * of using a WARN/WARN_ON to get the message out, including the
3507 * file/line information and a backtrace.
3509 #define wiphy_WARN(wiphy, format, args...) \
3510 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3512 #endif /* __NET_CFG80211_H */