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.
854 u16 dot11MeshRetryTimeout
;
855 u16 dot11MeshConfirmTimeout
;
856 u16 dot11MeshHoldingTimeout
;
857 u16 dot11MeshMaxPeerLinks
;
858 u8 dot11MeshMaxRetries
;
861 bool auto_open_plinks
;
862 u32 dot11MeshNbrOffsetMaxNeighbor
;
863 u8 dot11MeshHWMPmaxPREQretries
;
864 u32 path_refresh_time
;
865 u16 min_discovery_timeout
;
866 u32 dot11MeshHWMPactivePathTimeout
;
867 u16 dot11MeshHWMPpreqMinInterval
;
868 u16 dot11MeshHWMPperrMinInterval
;
869 u16 dot11MeshHWMPnetDiameterTraversalTime
;
870 u8 dot11MeshHWMPRootMode
;
871 u16 dot11MeshHWMPRannInterval
;
872 bool dot11MeshGateAnnouncementProtocol
;
873 bool dot11MeshForwarding
;
876 u32 dot11MeshHWMPactivePathToRootTimeout
;
877 u16 dot11MeshHWMProotInterval
;
881 * struct mesh_setup - 802.11s mesh setup configuration
882 * @channel: the channel to start the mesh network on
883 * @channel_type: the channel type to use
884 * @mesh_id: the mesh ID
885 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
886 * @sync_method: which synchronization method to use
887 * @path_sel_proto: which path selection protocol to use
888 * @path_metric: which metric to use
889 * @ie: vendor information elements (optional)
890 * @ie_len: length of vendor information elements
891 * @is_authenticated: this mesh requires authentication
892 * @is_secure: this mesh uses security
893 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
895 * These parameters are fixed when the mesh is created.
898 struct ieee80211_channel
*channel
;
899 enum nl80211_channel_type channel_type
;
907 bool is_authenticated
;
909 int mcast_rate
[IEEE80211_NUM_BANDS
];
913 * struct ieee80211_txq_params - TX queue parameters
915 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
916 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
918 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
920 * @aifs: Arbitration interframe space [0..255]
922 struct ieee80211_txq_params
{
930 /* from net/wireless.h */
934 * DOC: Scanning and BSS list handling
936 * The scanning process itself is fairly simple, but cfg80211 offers quite
937 * a bit of helper functionality. To start a scan, the scan operation will
938 * be invoked with a scan definition. This scan definition contains the
939 * channels to scan, and the SSIDs to send probe requests for (including the
940 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
941 * probe. Additionally, a scan request may contain extra information elements
942 * that should be added to the probe request. The IEs are guaranteed to be
943 * well-formed, and will not exceed the maximum length the driver advertised
944 * in the wiphy structure.
946 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
947 * it is responsible for maintaining the BSS list; the driver should not
948 * maintain a list itself. For this notification, various functions exist.
950 * Since drivers do not maintain a BSS list, there are also a number of
951 * functions to search for a BSS and obtain information about it from the
952 * BSS structure cfg80211 maintains. The BSS list is also made available
957 * struct cfg80211_ssid - SSID description
959 * @ssid_len: length of the ssid
961 struct cfg80211_ssid
{
962 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
967 * struct cfg80211_scan_request - scan request description
969 * @ssids: SSIDs to scan for (active scan only)
970 * @n_ssids: number of SSIDs
971 * @channels: channels to scan on.
972 * @n_channels: total number of channels to scan
973 * @ie: optional information element(s) to add into Probe Request or %NULL
974 * @ie_len: length of ie in octets
975 * @rates: bitmap of rates to advertise for each band
976 * @wiphy: the wiphy this was for
977 * @dev: the interface
978 * @aborted: (internal) scan request was notified as aborted
979 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
981 struct cfg80211_scan_request
{
982 struct cfg80211_ssid
*ssids
;
988 u32 rates
[IEEE80211_NUM_BANDS
];
992 struct net_device
*dev
;
997 struct ieee80211_channel
*channels
[0];
1001 * struct cfg80211_match_set - sets of attributes to match
1003 * @ssid: SSID to be matched
1005 struct cfg80211_match_set
{
1006 struct cfg80211_ssid ssid
;
1010 * struct cfg80211_sched_scan_request - scheduled scan request description
1012 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1013 * @n_ssids: number of SSIDs
1014 * @n_channels: total number of channels to scan
1015 * @interval: interval between each scheduled scan cycle
1016 * @ie: optional information element(s) to add into Probe Request or %NULL
1017 * @ie_len: length of ie in octets
1018 * @match_sets: sets of parameters to be matched for a scan result
1019 * entry to be considered valid and to be passed to the host
1020 * (others are filtered out).
1021 * If ommited, all results are passed.
1022 * @n_match_sets: number of match sets
1023 * @wiphy: the wiphy this was for
1024 * @dev: the interface
1025 * @channels: channels to scan
1027 struct cfg80211_sched_scan_request
{
1028 struct cfg80211_ssid
*ssids
;
1034 struct cfg80211_match_set
*match_sets
;
1038 struct wiphy
*wiphy
;
1039 struct net_device
*dev
;
1042 struct ieee80211_channel
*channels
[0];
1046 * enum cfg80211_signal_type - signal type
1048 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1049 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1050 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1052 enum cfg80211_signal_type
{
1053 CFG80211_SIGNAL_TYPE_NONE
,
1054 CFG80211_SIGNAL_TYPE_MBM
,
1055 CFG80211_SIGNAL_TYPE_UNSPEC
,
1059 * struct cfg80211_bss - BSS description
1061 * This structure describes a BSS (which may also be a mesh network)
1062 * for use in scan results and similar.
1064 * @channel: channel this BSS is on
1065 * @bssid: BSSID of the BSS
1066 * @tsf: timestamp of last received update
1067 * @beacon_interval: the beacon interval as from the frame
1068 * @capability: the capability field in host byte order
1069 * @information_elements: the information elements (Note that there
1070 * is no guarantee that these are well-formed!); this is a pointer to
1071 * either the beacon_ies or proberesp_ies depending on whether Probe
1072 * Response frame has been received
1073 * @len_information_elements: total length of the information elements
1074 * @beacon_ies: the information elements from the last Beacon frame
1075 * @len_beacon_ies: total length of the beacon_ies
1076 * @proberesp_ies: the information elements from the last Probe Response frame
1077 * @len_proberesp_ies: total length of the proberesp_ies
1078 * @signal: signal strength value (type depends on the wiphy's signal_type)
1079 * @free_priv: function pointer to free private data
1080 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1082 struct cfg80211_bss
{
1083 struct ieee80211_channel
*channel
;
1087 u16 beacon_interval
;
1089 u8
*information_elements
;
1090 size_t len_information_elements
;
1092 size_t len_beacon_ies
;
1094 size_t len_proberesp_ies
;
1098 void (*free_priv
)(struct cfg80211_bss
*bss
);
1099 u8 priv
[0] __attribute__((__aligned__(sizeof(void *))));
1103 * ieee80211_bss_get_ie - find IE with given ID
1104 * @bss: the bss to search
1106 * Returns %NULL if not found.
1108 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
1112 * struct cfg80211_auth_request - Authentication request data
1114 * This structure provides information needed to complete IEEE 802.11
1117 * @bss: The BSS to authenticate with.
1118 * @auth_type: Authentication type (algorithm)
1119 * @ie: Extra IEs to add to Authentication frame or %NULL
1120 * @ie_len: Length of ie buffer in octets
1121 * @key_len: length of WEP key for shared key authentication
1122 * @key_idx: index of WEP key for shared key authentication
1123 * @key: WEP key for shared key authentication
1125 struct cfg80211_auth_request
{
1126 struct cfg80211_bss
*bss
;
1129 enum nl80211_auth_type auth_type
;
1131 u8 key_len
, key_idx
;
1135 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1137 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1139 enum cfg80211_assoc_req_flags
{
1140 ASSOC_REQ_DISABLE_HT
= BIT(0),
1144 * struct cfg80211_assoc_request - (Re)Association request data
1146 * This structure provides information needed to complete IEEE 802.11
1148 * @bss: The BSS to associate with. If the call is successful the driver
1149 * is given a reference that it must release, normally via a call to
1150 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1151 * call to cfg80211_put_bss() (in addition to calling
1152 * cfg80211_send_assoc_timeout())
1153 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1154 * @ie_len: Length of ie buffer in octets
1155 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1156 * @crypto: crypto settings
1157 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1158 * @flags: See &enum cfg80211_assoc_req_flags
1159 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1160 * will be used in ht_capa. Un-supported values will be ignored.
1161 * @ht_capa_mask: The bits of ht_capa which are to be used.
1163 struct cfg80211_assoc_request
{
1164 struct cfg80211_bss
*bss
;
1165 const u8
*ie
, *prev_bssid
;
1167 struct cfg80211_crypto_settings crypto
;
1170 struct ieee80211_ht_cap ht_capa
;
1171 struct ieee80211_ht_cap ht_capa_mask
;
1175 * struct cfg80211_deauth_request - Deauthentication request data
1177 * This structure provides information needed to complete IEEE 802.11
1180 * @bssid: the BSSID of the BSS to deauthenticate from
1181 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1182 * @ie_len: Length of ie buffer in octets
1183 * @reason_code: The reason code for the deauthentication
1185 struct cfg80211_deauth_request
{
1193 * struct cfg80211_disassoc_request - Disassociation request data
1195 * This structure provides information needed to complete IEEE 802.11
1198 * @bss: the BSS to disassociate from
1199 * @ie: Extra IEs to add to Disassociation frame or %NULL
1200 * @ie_len: Length of ie buffer in octets
1201 * @reason_code: The reason code for the disassociation
1202 * @local_state_change: This is a request for a local state only, i.e., no
1203 * Disassociation frame is to be transmitted.
1205 struct cfg80211_disassoc_request
{
1206 struct cfg80211_bss
*bss
;
1210 bool local_state_change
;
1214 * struct cfg80211_ibss_params - IBSS parameters
1216 * This structure defines the IBSS parameters for the join_ibss()
1219 * @ssid: The SSID, will always be non-null.
1220 * @ssid_len: The length of the SSID, will always be non-zero.
1221 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1222 * search for IBSSs with a different BSSID.
1223 * @channel: The channel to use if no IBSS can be found to join.
1224 * @channel_type: channel type (HT mode)
1225 * @channel_fixed: The channel should be fixed -- do not search for
1226 * IBSSs to join on other channels.
1227 * @ie: information element(s) to include in the beacon
1228 * @ie_len: length of that
1229 * @beacon_interval: beacon interval to use
1230 * @privacy: this is a protected network, keys will be configured
1232 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1233 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1234 * required to assume that the port is unauthorized until authorized by
1235 * user space. Otherwise, port is marked authorized by default.
1236 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1237 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1239 struct cfg80211_ibss_params
{
1242 struct ieee80211_channel
*channel
;
1243 enum nl80211_channel_type channel_type
;
1245 u8 ssid_len
, ie_len
;
1246 u16 beacon_interval
;
1251 int mcast_rate
[IEEE80211_NUM_BANDS
];
1255 * struct cfg80211_connect_params - Connection parameters
1257 * This structure provides information needed to complete IEEE 802.11
1258 * authentication and association.
1260 * @channel: The channel to use or %NULL if not specified (auto-select based
1262 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1265 * @ssid_len: Length of ssid in octets
1266 * @auth_type: Authentication type (algorithm)
1267 * @ie: IEs for association request
1268 * @ie_len: Length of assoc_ie in octets
1269 * @privacy: indicates whether privacy-enabled APs should be used
1270 * @crypto: crypto settings
1271 * @key_len: length of WEP key for shared key authentication
1272 * @key_idx: index of WEP key for shared key authentication
1273 * @key: WEP key for shared key authentication
1274 * @flags: See &enum cfg80211_assoc_req_flags
1275 * @bg_scan_period: Background scan period in seconds
1276 * or -1 to indicate that default value is to be used.
1277 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1278 * will be used in ht_capa. Un-supported values will be ignored.
1279 * @ht_capa_mask: The bits of ht_capa which are to be used.
1281 struct cfg80211_connect_params
{
1282 struct ieee80211_channel
*channel
;
1286 enum nl80211_auth_type auth_type
;
1290 struct cfg80211_crypto_settings crypto
;
1292 u8 key_len
, key_idx
;
1295 struct ieee80211_ht_cap ht_capa
;
1296 struct ieee80211_ht_cap ht_capa_mask
;
1300 * enum wiphy_params_flags - set_wiphy_params bitfield values
1301 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1302 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1303 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1304 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1305 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1307 enum wiphy_params_flags
{
1308 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1309 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1310 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1311 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1312 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1316 * cfg80211_bitrate_mask - masks for bitrate control
1318 struct cfg80211_bitrate_mask
{
1321 u8 mcs
[IEEE80211_HT_MCS_MASK_LEN
];
1322 } control
[IEEE80211_NUM_BANDS
];
1325 * struct cfg80211_pmksa - PMK Security Association
1327 * This structure is passed to the set/del_pmksa() method for PMKSA
1330 * @bssid: The AP's BSSID.
1331 * @pmkid: The PMK material itself.
1333 struct cfg80211_pmksa
{
1339 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1340 * @mask: bitmask where to match pattern and where to ignore bytes,
1341 * one bit per byte, in same format as nl80211
1342 * @pattern: bytes to match where bitmask is 1
1343 * @pattern_len: length of pattern (in bytes)
1345 * Internal note: @mask and @pattern are allocated in one chunk of
1346 * memory, free @mask only!
1348 struct cfg80211_wowlan_trig_pkt_pattern
{
1354 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1356 * This structure defines the enabled WoWLAN triggers for the device.
1357 * @any: wake up on any activity -- special trigger if device continues
1358 * operating as normal during suspend
1359 * @disconnect: wake up if getting disconnected
1360 * @magic_pkt: wake up on receiving magic packet
1361 * @patterns: wake up on receiving packet matching a pattern
1362 * @n_patterns: number of patterns
1363 * @gtk_rekey_failure: wake up on GTK rekey failure
1364 * @eap_identity_req: wake up on EAP identity request packet
1365 * @four_way_handshake: wake up on 4-way handshake
1366 * @rfkill_release: wake up when rfkill is released
1368 struct cfg80211_wowlan
{
1369 bool any
, disconnect
, magic_pkt
, gtk_rekey_failure
,
1370 eap_identity_req
, four_way_handshake
,
1372 struct cfg80211_wowlan_trig_pkt_pattern
*patterns
;
1377 * struct cfg80211_gtk_rekey_data - rekey data
1378 * @kek: key encryption key
1379 * @kck: key confirmation key
1380 * @replay_ctr: replay counter
1382 struct cfg80211_gtk_rekey_data
{
1383 u8 kek
[NL80211_KEK_LEN
];
1384 u8 kck
[NL80211_KCK_LEN
];
1385 u8 replay_ctr
[NL80211_REPLAY_CTR_LEN
];
1389 * struct cfg80211_ops - backend description for wireless configuration
1391 * This struct is registered by fullmac card drivers and/or wireless stacks
1392 * in order to handle configuration requests on their interfaces.
1394 * All callbacks except where otherwise noted should return 0
1395 * on success or a negative error code.
1397 * All operations are currently invoked under rtnl for consistency with the
1398 * wireless extensions but this is subject to reevaluation as soon as this
1399 * code is used more widely and we have a first user without wext.
1401 * @suspend: wiphy device needs to be suspended. The variable @wow will
1402 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1403 * configured for the device.
1404 * @resume: wiphy device needs to be resumed
1405 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1406 * to call device_set_wakeup_enable() to enable/disable wakeup from
1409 * @add_virtual_intf: create a new virtual interface with the given name,
1410 * must set the struct wireless_dev's iftype. Beware: You must create
1411 * the new netdev in the wiphy's network namespace! Returns the netdev,
1414 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1416 * @change_virtual_intf: change type/configuration of virtual interface,
1417 * keep the struct wireless_dev's iftype updated.
1419 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1420 * when adding a group key.
1422 * @get_key: get information about the key with the given parameters.
1423 * @mac_addr will be %NULL when requesting information for a group
1424 * key. All pointers given to the @callback function need not be valid
1425 * after it returns. This function should return an error if it is
1426 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1428 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1429 * and @key_index, return -ENOENT if the key doesn't exist.
1431 * @set_default_key: set the default key on an interface
1433 * @set_default_mgmt_key: set the default management frame key on an interface
1435 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1437 * @start_ap: Start acting in AP mode defined by the parameters.
1438 * @change_beacon: Change the beacon parameters for an access point mode
1439 * interface. This should reject the call when AP mode wasn't started.
1440 * @stop_ap: Stop being an AP, including stopping beaconing.
1442 * @add_station: Add a new station.
1443 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1444 * @change_station: Modify a given station. Note that flags changes are not much
1445 * validated in cfg80211, in particular the auth/assoc/authorized flags
1446 * might come to the driver in invalid combinations -- make sure to check
1447 * them, also against the existing state! Also, supported_rates changes are
1448 * not checked in station mode -- drivers need to reject (or ignore) them
1449 * for anything but TDLS peers.
1450 * @get_station: get station information for the station identified by @mac
1451 * @dump_station: dump station callback -- resume dump at index @idx
1453 * @add_mpath: add a fixed mesh path
1454 * @del_mpath: delete a given mesh path
1455 * @change_mpath: change a given mesh path
1456 * @get_mpath: get a mesh path for the given parameters
1457 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1458 * @join_mesh: join the mesh network with the specified parameters
1459 * @leave_mesh: leave the current mesh network
1461 * @get_mesh_config: Get the current mesh configuration
1463 * @update_mesh_config: Update mesh parameters on a running mesh.
1464 * The mask is a bitfield which tells us which parameters to
1465 * set, and which to leave alone.
1467 * @change_bss: Modify parameters for a given BSS.
1469 * @set_txq_params: Set TX queue parameters
1471 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1472 * as it doesn't implement join_mesh and needs to set the channel to
1473 * join the mesh instead.
1475 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1476 * interfaces are active this callback should reject the configuration.
1477 * If no interfaces are active or the device is down, the channel should
1478 * be stored for when a monitor interface becomes active.
1479 * @get_channel: Get the current operating channel, should return %NULL if
1480 * there's no single defined operating channel if for example the
1481 * device implements channel hopping for multi-channel virtual interfaces.
1483 * @scan: Request to do a scan. If returning zero, the scan request is given
1484 * the driver, and will be valid until passed to cfg80211_scan_done().
1485 * For scan results, call cfg80211_inform_bss(); you can call this outside
1486 * the scan/scan_done bracket too.
1488 * @auth: Request to authenticate with the specified peer
1489 * @assoc: Request to (re)associate with the specified peer
1490 * @deauth: Request to deauthenticate from the specified peer
1491 * @disassoc: Request to disassociate from the specified peer
1493 * @connect: Connect to the ESS with the specified parameters. When connected,
1494 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1495 * If the connection fails for some reason, call cfg80211_connect_result()
1496 * with the status from the AP.
1497 * @disconnect: Disconnect from the BSS/ESS.
1499 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1500 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1502 * @leave_ibss: Leave the IBSS.
1504 * @set_wiphy_params: Notify that wiphy parameters have changed;
1505 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1506 * have changed. The actual parameter values are available in
1507 * struct wiphy. If returning an error, no value should be changed.
1509 * @set_tx_power: set the transmit power according to the parameters,
1510 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1511 * @get_tx_power: store the current TX power into the dbm variable;
1512 * return 0 if successful
1514 * @set_wds_peer: set the WDS peer for a WDS interface
1516 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1517 * functions to adjust rfkill hw state
1519 * @dump_survey: get site survey information.
1521 * @remain_on_channel: Request the driver to remain awake on the specified
1522 * channel for the specified duration to complete an off-channel
1523 * operation (e.g., public action frame exchange). When the driver is
1524 * ready on the requested channel, it must indicate this with an event
1525 * notification by calling cfg80211_ready_on_channel().
1526 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1527 * This allows the operation to be terminated prior to timeout based on
1528 * the duration value.
1529 * @mgmt_tx: Transmit a management frame.
1530 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1531 * frame on another channel
1533 * @testmode_cmd: run a test mode command
1534 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1535 * used by the function, but 0 and 1 must not be touched. Additionally,
1536 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1537 * dump and return to userspace with an error, so be careful. If any data
1538 * was passed in from userspace then the data/len arguments will be present
1539 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1541 * @set_bitrate_mask: set the bitrate mask configuration
1543 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1544 * devices running firmwares capable of generating the (re) association
1545 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1546 * @del_pmksa: Delete a cached PMKID.
1547 * @flush_pmksa: Flush all cached PMKIDs.
1548 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1549 * allows the driver to adjust the dynamic ps timeout value.
1550 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1551 * @sched_scan_start: Tell the driver to start a scheduled scan.
1552 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1553 * scan. The driver_initiated flag specifies whether the driver
1554 * itself has informed that the scan has stopped.
1556 * @mgmt_frame_register: Notify driver that a management frame type was
1557 * registered. Note that this callback may not sleep, and cannot run
1558 * concurrently with itself.
1560 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1561 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1562 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1563 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1565 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1567 * @set_ringparam: Set tx and rx ring sizes.
1569 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1571 * @tdls_mgmt: Transmit a TDLS management frame.
1572 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1574 * @probe_client: probe an associated client, must return a cookie that it
1575 * later passes to cfg80211_probe_status().
1577 * @set_noack_map: Set the NoAck Map for the TIDs.
1579 * @get_et_sset_count: Ethtool API to get string-set count.
1580 * See @ethtool_ops.get_sset_count
1582 * @get_et_stats: Ethtool API to get a set of u64 stats.
1583 * See @ethtool_ops.get_ethtool_stats
1585 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1586 * and perhaps other supported types of ethtool data-sets.
1587 * See @ethtool_ops.get_strings
1589 struct cfg80211_ops
{
1590 int (*suspend
)(struct wiphy
*wiphy
, struct cfg80211_wowlan
*wow
);
1591 int (*resume
)(struct wiphy
*wiphy
);
1592 void (*set_wakeup
)(struct wiphy
*wiphy
, bool enabled
);
1594 struct net_device
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
1596 enum nl80211_iftype type
,
1598 struct vif_params
*params
);
1599 int (*del_virtual_intf
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1600 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
1601 struct net_device
*dev
,
1602 enum nl80211_iftype type
, u32
*flags
,
1603 struct vif_params
*params
);
1605 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1606 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1607 struct key_params
*params
);
1608 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1609 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1611 void (*callback
)(void *cookie
, struct key_params
*));
1612 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1613 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
1614 int (*set_default_key
)(struct wiphy
*wiphy
,
1615 struct net_device
*netdev
,
1616 u8 key_index
, bool unicast
, bool multicast
);
1617 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
1618 struct net_device
*netdev
,
1621 int (*start_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1622 struct cfg80211_ap_settings
*settings
);
1623 int (*change_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1624 struct cfg80211_beacon_data
*info
);
1625 int (*stop_ap
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1628 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1629 u8
*mac
, struct station_parameters
*params
);
1630 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1632 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1633 u8
*mac
, struct station_parameters
*params
);
1634 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1635 u8
*mac
, struct station_info
*sinfo
);
1636 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1637 int idx
, u8
*mac
, struct station_info
*sinfo
);
1639 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1640 u8
*dst
, u8
*next_hop
);
1641 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1643 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1644 u8
*dst
, u8
*next_hop
);
1645 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1646 u8
*dst
, u8
*next_hop
,
1647 struct mpath_info
*pinfo
);
1648 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1649 int idx
, u8
*dst
, u8
*next_hop
,
1650 struct mpath_info
*pinfo
);
1651 int (*get_mesh_config
)(struct wiphy
*wiphy
,
1652 struct net_device
*dev
,
1653 struct mesh_config
*conf
);
1654 int (*update_mesh_config
)(struct wiphy
*wiphy
,
1655 struct net_device
*dev
, u32 mask
,
1656 const struct mesh_config
*nconf
);
1657 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1658 const struct mesh_config
*conf
,
1659 const struct mesh_setup
*setup
);
1660 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1662 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1663 struct bss_parameters
*params
);
1665 int (*set_txq_params
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1666 struct ieee80211_txq_params
*params
);
1668 int (*libertas_set_mesh_channel
)(struct wiphy
*wiphy
,
1669 struct net_device
*dev
,
1670 struct ieee80211_channel
*chan
);
1672 int (*set_monitor_channel
)(struct wiphy
*wiphy
,
1673 struct ieee80211_channel
*chan
,
1674 enum nl80211_channel_type channel_type
);
1676 int (*scan
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1677 struct cfg80211_scan_request
*request
);
1679 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1680 struct cfg80211_auth_request
*req
);
1681 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1682 struct cfg80211_assoc_request
*req
);
1683 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1684 struct cfg80211_deauth_request
*req
);
1685 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1686 struct cfg80211_disassoc_request
*req
);
1688 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1689 struct cfg80211_connect_params
*sme
);
1690 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1693 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1694 struct cfg80211_ibss_params
*params
);
1695 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1697 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
1699 int (*set_tx_power
)(struct wiphy
*wiphy
,
1700 enum nl80211_tx_power_setting type
, int mbm
);
1701 int (*get_tx_power
)(struct wiphy
*wiphy
, int *dbm
);
1703 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1706 void (*rfkill_poll
)(struct wiphy
*wiphy
);
1708 #ifdef CONFIG_NL80211_TESTMODE
1709 int (*testmode_cmd
)(struct wiphy
*wiphy
, void *data
, int len
);
1710 int (*testmode_dump
)(struct wiphy
*wiphy
, struct sk_buff
*skb
,
1711 struct netlink_callback
*cb
,
1712 void *data
, int len
);
1715 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
1716 struct net_device
*dev
,
1718 const struct cfg80211_bitrate_mask
*mask
);
1720 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1721 int idx
, struct survey_info
*info
);
1723 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1724 struct cfg80211_pmksa
*pmksa
);
1725 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1726 struct cfg80211_pmksa
*pmksa
);
1727 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
1729 int (*remain_on_channel
)(struct wiphy
*wiphy
,
1730 struct net_device
*dev
,
1731 struct ieee80211_channel
*chan
,
1732 enum nl80211_channel_type channel_type
,
1733 unsigned int duration
,
1735 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
1736 struct net_device
*dev
,
1739 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1740 struct ieee80211_channel
*chan
, bool offchan
,
1741 enum nl80211_channel_type channel_type
,
1742 bool channel_type_valid
, unsigned int wait
,
1743 const u8
*buf
, size_t len
, bool no_cck
,
1744 bool dont_wait_for_ack
, u64
*cookie
);
1745 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
1746 struct net_device
*dev
,
1749 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1750 bool enabled
, int timeout
);
1752 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
1753 struct net_device
*dev
,
1754 s32 rssi_thold
, u32 rssi_hyst
);
1756 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
1757 struct net_device
*dev
,
1758 u16 frame_type
, bool reg
);
1760 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
1761 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
1763 int (*set_ringparam
)(struct wiphy
*wiphy
, u32 tx
, u32 rx
);
1764 void (*get_ringparam
)(struct wiphy
*wiphy
,
1765 u32
*tx
, u32
*tx_max
, u32
*rx
, u32
*rx_max
);
1767 int (*sched_scan_start
)(struct wiphy
*wiphy
,
1768 struct net_device
*dev
,
1769 struct cfg80211_sched_scan_request
*request
);
1770 int (*sched_scan_stop
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1772 int (*set_rekey_data
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1773 struct cfg80211_gtk_rekey_data
*data
);
1775 int (*tdls_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1776 u8
*peer
, u8 action_code
, u8 dialog_token
,
1777 u16 status_code
, const u8
*buf
, size_t len
);
1778 int (*tdls_oper
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1779 u8
*peer
, enum nl80211_tdls_operation oper
);
1781 int (*probe_client
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1782 const u8
*peer
, u64
*cookie
);
1784 int (*set_noack_map
)(struct wiphy
*wiphy
,
1785 struct net_device
*dev
,
1788 struct ieee80211_channel
*(*get_channel
)(struct wiphy
*wiphy
,
1789 enum nl80211_channel_type
*type
);
1791 int (*get_et_sset_count
)(struct wiphy
*wiphy
,
1792 struct net_device
*dev
, int sset
);
1793 void (*get_et_stats
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1794 struct ethtool_stats
*stats
, u64
*data
);
1795 void (*get_et_strings
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1796 u32 sset
, u8
*data
);
1800 * wireless hardware and networking interfaces structures
1801 * and registration/helper functions
1805 * enum wiphy_flags - wiphy capability flags
1807 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1808 * has its own custom regulatory domain and cannot identify the
1809 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1810 * we will disregard the first regulatory hint (when the
1811 * initiator is %REGDOM_SET_BY_CORE).
1812 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1813 * ignore regulatory domain settings until it gets its own regulatory
1814 * domain via its regulatory_hint() unless the regulatory hint is
1815 * from a country IE. After its gets its own regulatory domain it will
1816 * only allow further regulatory domain settings to further enhance
1817 * compliance. For example if channel 13 and 14 are disabled by this
1818 * regulatory domain no user regulatory domain can enable these channels
1819 * at a later time. This can be used for devices which do not have
1820 * calibration information guaranteed for frequencies or settings
1821 * outside of its regulatory domain. If used in combination with
1822 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1824 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1825 * that passive scan flags and beaconing flags may not be lifted by
1826 * cfg80211 due to regulatory beacon hints. For more information on beacon
1827 * hints read the documenation for regulatory_hint_found_beacon()
1828 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1830 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1831 * by default -- this flag will be set depending on the kernel's default
1832 * on wiphy_new(), but can be changed by the driver if it has a good
1833 * reason to override the default
1834 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1835 * on a VLAN interface)
1836 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1837 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1838 * control port protocol ethertype. The device also honours the
1839 * control_port_no_encrypt flag.
1840 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1841 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1842 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1843 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1844 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1846 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1847 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1848 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1849 * link setup/discovery operations internally. Setup, discovery and
1850 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1851 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1852 * used for asking the driver/firmware to perform a TDLS operation.
1853 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1854 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1855 * when there are virtual interfaces in AP mode by calling
1856 * cfg80211_report_obss_beacon().
1857 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1858 * responds to probe-requests in hardware.
1859 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1860 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1863 WIPHY_FLAG_CUSTOM_REGULATORY
= BIT(0),
1864 WIPHY_FLAG_STRICT_REGULATORY
= BIT(1),
1865 WIPHY_FLAG_DISABLE_BEACON_HINTS
= BIT(2),
1866 WIPHY_FLAG_NETNS_OK
= BIT(3),
1867 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
1868 WIPHY_FLAG_4ADDR_AP
= BIT(5),
1869 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
1870 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
1871 WIPHY_FLAG_IBSS_RSN
= BIT(8),
1872 WIPHY_FLAG_MESH_AUTH
= BIT(10),
1873 WIPHY_FLAG_SUPPORTS_SCHED_SCAN
= BIT(11),
1874 /* use hole at 12 */
1875 WIPHY_FLAG_SUPPORTS_FW_ROAM
= BIT(13),
1876 WIPHY_FLAG_AP_UAPSD
= BIT(14),
1877 WIPHY_FLAG_SUPPORTS_TDLS
= BIT(15),
1878 WIPHY_FLAG_TDLS_EXTERNAL_SETUP
= BIT(16),
1879 WIPHY_FLAG_HAVE_AP_SME
= BIT(17),
1880 WIPHY_FLAG_REPORTS_OBSS
= BIT(18),
1881 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
= BIT(19),
1882 WIPHY_FLAG_OFFCHAN_TX
= BIT(20),
1883 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
= BIT(21),
1887 * struct ieee80211_iface_limit - limit on certain interface types
1888 * @max: maximum number of interfaces of these types
1889 * @types: interface types (bits)
1891 struct ieee80211_iface_limit
{
1897 * struct ieee80211_iface_combination - possible interface combination
1898 * @limits: limits for the given interface types
1899 * @n_limits: number of limitations
1900 * @num_different_channels: can use up to this many different channels
1901 * @max_interfaces: maximum number of interfaces in total allowed in this
1903 * @beacon_int_infra_match: In this combination, the beacon intervals
1904 * between infrastructure and AP types must match. This is required
1905 * only in special cases.
1907 * These examples can be expressed as follows:
1909 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1911 * struct ieee80211_iface_limit limits1[] = {
1912 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1913 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1915 * struct ieee80211_iface_combination combination1 = {
1916 * .limits = limits1,
1917 * .n_limits = ARRAY_SIZE(limits1),
1918 * .max_interfaces = 2,
1919 * .beacon_int_infra_match = true,
1923 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1925 * struct ieee80211_iface_limit limits2[] = {
1926 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1927 * BIT(NL80211_IFTYPE_P2P_GO), },
1929 * struct ieee80211_iface_combination combination2 = {
1930 * .limits = limits2,
1931 * .n_limits = ARRAY_SIZE(limits2),
1932 * .max_interfaces = 8,
1933 * .num_different_channels = 1,
1937 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1938 * This allows for an infrastructure connection and three P2P connections.
1940 * struct ieee80211_iface_limit limits3[] = {
1941 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1942 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1943 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1945 * struct ieee80211_iface_combination combination3 = {
1946 * .limits = limits3,
1947 * .n_limits = ARRAY_SIZE(limits3),
1948 * .max_interfaces = 4,
1949 * .num_different_channels = 2,
1952 struct ieee80211_iface_combination
{
1953 const struct ieee80211_iface_limit
*limits
;
1954 u32 num_different_channels
;
1957 bool beacon_int_infra_match
;
1960 struct mac_address
{
1964 struct ieee80211_txrx_stypes
{
1969 * enum wiphy_wowlan_support_flags - WoWLAN support flags
1970 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
1971 * trigger that keeps the device operating as-is and
1972 * wakes up the host on any activity, for example a
1973 * received packet that passed filtering; note that the
1974 * packet should be preserved in that case
1975 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
1977 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
1978 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
1979 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
1980 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
1981 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
1982 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
1984 enum wiphy_wowlan_support_flags
{
1985 WIPHY_WOWLAN_ANY
= BIT(0),
1986 WIPHY_WOWLAN_MAGIC_PKT
= BIT(1),
1987 WIPHY_WOWLAN_DISCONNECT
= BIT(2),
1988 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
= BIT(3),
1989 WIPHY_WOWLAN_GTK_REKEY_FAILURE
= BIT(4),
1990 WIPHY_WOWLAN_EAP_IDENTITY_REQ
= BIT(5),
1991 WIPHY_WOWLAN_4WAY_HANDSHAKE
= BIT(6),
1992 WIPHY_WOWLAN_RFKILL_RELEASE
= BIT(7),
1996 * struct wiphy_wowlan_support - WoWLAN support data
1997 * @flags: see &enum wiphy_wowlan_support_flags
1998 * @n_patterns: number of supported wakeup patterns
1999 * (see nl80211.h for the pattern definition)
2000 * @pattern_max_len: maximum length of each pattern
2001 * @pattern_min_len: minimum length of each pattern
2003 struct wiphy_wowlan_support
{
2006 int pattern_max_len
;
2007 int pattern_min_len
;
2011 * struct wiphy - wireless hardware description
2012 * @reg_notifier: the driver's regulatory notification callback,
2013 * note that if your driver uses wiphy_apply_custom_regulatory()
2014 * the reg_notifier's request can be passed as NULL
2015 * @regd: the driver's regulatory domain, if one was requested via
2016 * the regulatory_hint() API. This can be used by the driver
2017 * on the reg_notifier() if it chooses to ignore future
2018 * regulatory domain changes caused by other drivers.
2019 * @signal_type: signal type reported in &struct cfg80211_bss.
2020 * @cipher_suites: supported cipher suites
2021 * @n_cipher_suites: number of supported cipher suites
2022 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2023 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2024 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2025 * -1 = fragmentation disabled, only odd values >= 256 used
2026 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2027 * @_net: the network namespace this wiphy currently lives in
2028 * @perm_addr: permanent MAC address of this device
2029 * @addr_mask: If the device supports multiple MAC addresses by masking,
2030 * set this to a mask with variable bits set to 1, e.g. if the last
2031 * four bits are variable then set it to 00:...:00:0f. The actual
2032 * variable bits shall be determined by the interfaces added, with
2033 * interfaces not matching the mask being rejected to be brought up.
2034 * @n_addresses: number of addresses in @addresses.
2035 * @addresses: If the device has more than one address, set this pointer
2036 * to a list of addresses (6 bytes each). The first one will be used
2037 * by default for perm_addr. In this case, the mask should be set to
2038 * all-zeroes. In this case it is assumed that the device can handle
2039 * the same number of arbitrary MAC addresses.
2040 * @registered: protects ->resume and ->suspend sysfs callbacks against
2041 * unregister hardware
2042 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2043 * automatically on wiphy renames
2044 * @dev: (virtual) struct device for this wiphy
2045 * @registered: helps synchronize suspend/resume with wiphy unregister
2046 * @wext: wireless extension handlers
2047 * @priv: driver private data (sized according to wiphy_new() parameter)
2048 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2049 * must be set by driver
2050 * @iface_combinations: Valid interface combinations array, should not
2051 * list single interface types.
2052 * @n_iface_combinations: number of entries in @iface_combinations array.
2053 * @software_iftypes: bitmask of software interface types, these are not
2054 * subject to any restrictions since they are purely managed in SW.
2055 * @flags: wiphy flags, see &enum wiphy_flags
2056 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2057 * @bss_priv_size: each BSS struct has private data allocated with it,
2058 * this variable determines its size
2059 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2061 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2062 * for in any given scheduled scan
2063 * @max_match_sets: maximum number of match sets the device can handle
2064 * when performing a scheduled scan, 0 if filtering is not
2066 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2067 * add to probe request frames transmitted during a scan, must not
2068 * include fixed IEs like supported rates
2069 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2071 * @coverage_class: current coverage class
2072 * @fw_version: firmware version for ethtool reporting
2073 * @hw_version: hardware version for ethtool reporting
2074 * @max_num_pmkids: maximum number of PMKIDs supported by device
2075 * @privid: a pointer that drivers can use to identify if an arbitrary
2076 * wiphy is theirs, e.g. in global notifiers
2077 * @bands: information about bands/channels supported by this device
2079 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2080 * transmitted through nl80211, points to an array indexed by interface
2083 * @available_antennas_tx: bitmap of antennas which are available to be
2084 * configured as TX antennas. Antenna configuration commands will be
2085 * rejected unless this or @available_antennas_rx is set.
2087 * @available_antennas_rx: bitmap of antennas which are available to be
2088 * configured as RX antennas. Antenna configuration commands will be
2089 * rejected unless this or @available_antennas_tx is set.
2091 * @probe_resp_offload:
2092 * Bitmap of supported protocols for probe response offloading.
2093 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2094 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2096 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2097 * may request, if implemented.
2099 * @wowlan: WoWLAN support information
2101 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2102 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2103 * If null, then none can be over-ridden.
2106 /* assign these fields before you register the wiphy */
2108 /* permanent MAC address(es) */
2109 u8 perm_addr
[ETH_ALEN
];
2110 u8 addr_mask
[ETH_ALEN
];
2112 struct mac_address
*addresses
;
2114 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
2116 const struct ieee80211_iface_combination
*iface_combinations
;
2117 int n_iface_combinations
;
2118 u16 software_iftypes
;
2122 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2123 u16 interface_modes
;
2125 u32 flags
, features
;
2129 enum cfg80211_signal_type signal_type
;
2133 u8 max_sched_scan_ssids
;
2135 u16 max_scan_ie_len
;
2136 u16 max_sched_scan_ie_len
;
2138 int n_cipher_suites
;
2139 const u32
*cipher_suites
;
2147 char fw_version
[ETHTOOL_BUSINFO_LEN
];
2150 struct wiphy_wowlan_support wowlan
;
2152 u16 max_remain_on_channel_duration
;
2156 u32 available_antennas_tx
;
2157 u32 available_antennas_rx
;
2160 * Bitmap of supported protocols for probe response offloading
2161 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2162 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2164 u32 probe_resp_offload
;
2166 /* If multiple wiphys are registered and you're handed e.g.
2167 * a regular netdev with assigned ieee80211_ptr, you won't
2168 * know whether it points to a wiphy your driver has registered
2169 * or not. Assign this to something global to your driver to
2170 * help determine whether you own this wiphy or not. */
2173 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
2175 /* Lets us get back the wiphy on the callback */
2176 int (*reg_notifier
)(struct wiphy
*wiphy
,
2177 struct regulatory_request
*request
);
2179 /* fields below are read-only, assigned by cfg80211 */
2181 const struct ieee80211_regdomain
*regd
;
2183 /* the item in /sys/class/ieee80211/ points to this,
2184 * you need use set_wiphy_dev() (see below) */
2187 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2190 /* dir in debugfs: ieee80211/<wiphyname> */
2191 struct dentry
*debugfsdir
;
2193 const struct ieee80211_ht_cap
*ht_capa_mod_mask
;
2195 #ifdef CONFIG_NET_NS
2196 /* the network namespace this phy lives in currently */
2200 #ifdef CONFIG_CFG80211_WEXT
2201 const struct iw_handler_def
*wext
;
2204 char priv
[0] __attribute__((__aligned__(NETDEV_ALIGN
)));
2207 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
2209 return read_pnet(&wiphy
->_net
);
2212 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
2214 write_pnet(&wiphy
->_net
, net
);
2218 * wiphy_priv - return priv from wiphy
2220 * @wiphy: the wiphy whose priv pointer to return
2222 static inline void *wiphy_priv(struct wiphy
*wiphy
)
2225 return &wiphy
->priv
;
2229 * priv_to_wiphy - return the wiphy containing the priv
2231 * @priv: a pointer previously returned by wiphy_priv
2233 static inline struct wiphy
*priv_to_wiphy(void *priv
)
2236 return container_of(priv
, struct wiphy
, priv
);
2240 * set_wiphy_dev - set device pointer for wiphy
2242 * @wiphy: The wiphy whose device to bind
2243 * @dev: The device to parent it to
2245 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
2247 wiphy
->dev
.parent
= dev
;
2251 * wiphy_dev - get wiphy dev pointer
2253 * @wiphy: The wiphy whose device struct to look up
2255 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
2257 return wiphy
->dev
.parent
;
2261 * wiphy_name - get wiphy name
2263 * @wiphy: The wiphy whose name to return
2265 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
2267 return dev_name(&wiphy
->dev
);
2271 * wiphy_new - create a new wiphy for use with cfg80211
2273 * @ops: The configuration operations for this device
2274 * @sizeof_priv: The size of the private area to allocate
2276 * Create a new wiphy and associate the given operations with it.
2277 * @sizeof_priv bytes are allocated for private use.
2279 * The returned pointer must be assigned to each netdev's
2280 * ieee80211_ptr for proper operation.
2282 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
2285 * wiphy_register - register a wiphy with cfg80211
2287 * @wiphy: The wiphy to register.
2289 * Returns a non-negative wiphy index or a negative error code.
2291 extern int wiphy_register(struct wiphy
*wiphy
);
2294 * wiphy_unregister - deregister a wiphy from cfg80211
2296 * @wiphy: The wiphy to unregister.
2298 * After this call, no more requests can be made with this priv
2299 * pointer, but the call may sleep to wait for an outstanding
2300 * request that is being handled.
2302 extern void wiphy_unregister(struct wiphy
*wiphy
);
2305 * wiphy_free - free wiphy
2307 * @wiphy: The wiphy to free
2309 extern void wiphy_free(struct wiphy
*wiphy
);
2311 /* internal structs */
2312 struct cfg80211_conn
;
2313 struct cfg80211_internal_bss
;
2314 struct cfg80211_cached_keys
;
2317 * struct wireless_dev - wireless per-netdev state
2319 * This structure must be allocated by the driver/stack
2320 * that uses the ieee80211_ptr field in struct net_device
2321 * (this is intentional so it can be allocated along with
2324 * @wiphy: pointer to hardware description
2325 * @iftype: interface type
2326 * @list: (private) Used to collect the interfaces
2327 * @netdev: (private) Used to reference back to the netdev
2328 * @current_bss: (private) Used by the internal configuration code
2329 * @channel: (private) Used by the internal configuration code to track
2330 * the user-set AP, monitor and WDS channel
2331 * @preset_chan: (private) Used by the internal configuration code to
2332 * track the channel to be used for AP later
2333 * @preset_chantype: (private) the corresponding channel type
2334 * @bssid: (private) Used by the internal configuration code
2335 * @ssid: (private) Used by the internal configuration code
2336 * @ssid_len: (private) Used by the internal configuration code
2337 * @mesh_id_len: (private) Used by the internal configuration code
2338 * @mesh_id_up_len: (private) Used by the internal configuration code
2339 * @wext: (private) Used by the internal wireless extensions compat code
2340 * @use_4addr: indicates 4addr mode is used on this interface, must be
2341 * set by driver (if supported) on add_interface BEFORE registering the
2342 * netdev and may otherwise be used by driver read-only, will be update
2343 * by cfg80211 on change_interface
2344 * @mgmt_registrations: list of registrations for management frames
2345 * @mgmt_registrations_lock: lock for the list
2346 * @mtx: mutex used to lock data in this struct
2347 * @cleanup_work: work struct used for cleanup that can't be done directly
2348 * @beacon_interval: beacon interval used on this device for transmitting
2349 * beacons, 0 when not valid
2351 struct wireless_dev
{
2352 struct wiphy
*wiphy
;
2353 enum nl80211_iftype iftype
;
2355 /* the remainder of this struct should be private to cfg80211 */
2356 struct list_head list
;
2357 struct net_device
*netdev
;
2359 struct list_head mgmt_registrations
;
2360 spinlock_t mgmt_registrations_lock
;
2364 struct work_struct cleanup_work
;
2368 /* currently used for IBSS and SME - might be rearranged later */
2369 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2370 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
2373 CFG80211_SME_CONNECTING
,
2374 CFG80211_SME_CONNECTED
,
2376 struct cfg80211_conn
*conn
;
2377 struct cfg80211_cached_keys
*connect_keys
;
2379 struct list_head event_list
;
2380 spinlock_t event_lock
;
2382 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
2383 struct ieee80211_channel
*preset_chan
;
2384 enum nl80211_channel_type preset_chantype
;
2389 int beacon_interval
;
2391 u32 ap_unexpected_nlpid
;
2393 #ifdef CONFIG_CFG80211_WEXT
2396 struct cfg80211_ibss_params ibss
;
2397 struct cfg80211_connect_params connect
;
2398 struct cfg80211_cached_keys
*keys
;
2401 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
2402 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
2403 s8 default_key
, default_mgmt_key
;
2404 bool prev_bssid_valid
;
2410 * wdev_priv - return wiphy priv from wireless_dev
2412 * @wdev: The wireless device whose wiphy's priv pointer to return
2414 static inline void *wdev_priv(struct wireless_dev
*wdev
)
2417 return wiphy_priv(wdev
->wiphy
);
2421 * DOC: Utility functions
2423 * cfg80211 offers a number of utility functions that can be useful.
2427 * ieee80211_channel_to_frequency - convert channel number to frequency
2428 * @chan: channel number
2429 * @band: band, necessary due to channel number overlap
2431 extern int ieee80211_channel_to_frequency(int chan
, enum ieee80211_band band
);
2434 * ieee80211_frequency_to_channel - convert frequency to channel number
2435 * @freq: center frequency
2437 extern int ieee80211_frequency_to_channel(int freq
);
2440 * Name indirection necessary because the ieee80211 code also has
2441 * a function named "ieee80211_get_channel", so if you include
2442 * cfg80211's header file you get cfg80211's version, if you try
2443 * to include both header files you'll (rightfully!) get a symbol
2446 extern struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
2449 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2450 * @wiphy: the struct wiphy to get the channel for
2451 * @freq: the center frequency of the channel
2453 static inline struct ieee80211_channel
*
2454 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
2456 return __ieee80211_get_channel(wiphy
, freq
);
2460 * ieee80211_get_response_rate - get basic rate for a given rate
2462 * @sband: the band to look for rates in
2463 * @basic_rates: bitmap of basic rates
2464 * @bitrate: the bitrate for which to find the basic rate
2466 * This function returns the basic rate corresponding to a given
2467 * bitrate, that is the next lower bitrate contained in the basic
2468 * rate map, which is, for this function, given as a bitmap of
2469 * indices of rates in the band's bitrate table.
2471 struct ieee80211_rate
*
2472 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
2473 u32 basic_rates
, int bitrate
);
2476 * Radiotap parsing functions -- for controlled injection support
2478 * Implemented in net/wireless/radiotap.c
2479 * Documentation in Documentation/networking/radiotap-headers.txt
2482 struct radiotap_align_size
{
2483 uint8_t align
:4, size
:4;
2486 struct ieee80211_radiotap_namespace
{
2487 const struct radiotap_align_size
*align_size
;
2493 struct ieee80211_radiotap_vendor_namespaces
{
2494 const struct ieee80211_radiotap_namespace
*ns
;
2499 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2500 * @this_arg_index: index of current arg, valid after each successful call
2501 * to ieee80211_radiotap_iterator_next()
2502 * @this_arg: pointer to current radiotap arg; it is valid after each
2503 * call to ieee80211_radiotap_iterator_next() but also after
2504 * ieee80211_radiotap_iterator_init() where it will point to
2505 * the beginning of the actual data portion
2506 * @this_arg_size: length of the current arg, for convenience
2507 * @current_namespace: pointer to the current namespace definition
2508 * (or internally %NULL if the current namespace is unknown)
2509 * @is_radiotap_ns: indicates whether the current namespace is the default
2510 * radiotap namespace or not
2512 * @_rtheader: pointer to the radiotap header we are walking through
2513 * @_max_length: length of radiotap header in cpu byte ordering
2514 * @_arg_index: next argument index
2515 * @_arg: next argument pointer
2516 * @_next_bitmap: internal pointer to next present u32
2517 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2518 * @_vns: vendor namespace definitions
2519 * @_next_ns_data: beginning of the next namespace's data
2520 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2523 * Describes the radiotap parser state. Fields prefixed with an underscore
2524 * must not be used by users of the parser, only by the parser internally.
2527 struct ieee80211_radiotap_iterator
{
2528 struct ieee80211_radiotap_header
*_rtheader
;
2529 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
2530 const struct ieee80211_radiotap_namespace
*current_namespace
;
2532 unsigned char *_arg
, *_next_ns_data
;
2533 __le32
*_next_bitmap
;
2535 unsigned char *this_arg
;
2543 uint32_t _bitmap_shifter
;
2547 extern int ieee80211_radiotap_iterator_init(
2548 struct ieee80211_radiotap_iterator
*iterator
,
2549 struct ieee80211_radiotap_header
*radiotap_header
,
2550 int max_length
, const struct ieee80211_radiotap_vendor_namespaces
*vns
);
2552 extern int ieee80211_radiotap_iterator_next(
2553 struct ieee80211_radiotap_iterator
*iterator
);
2556 extern const unsigned char rfc1042_header
[6];
2557 extern const unsigned char bridge_tunnel_header
[6];
2560 * ieee80211_get_hdrlen_from_skb - get header length from data
2562 * Given an skb with a raw 802.11 header at the data pointer this function
2563 * returns the 802.11 header length in bytes (not including encryption
2564 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2565 * header the function returns 0.
2569 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
2572 * ieee80211_hdrlen - get header length in bytes from frame control
2573 * @fc: frame control field in little-endian format
2575 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
2578 * DOC: Data path helpers
2580 * In addition to generic utilities, cfg80211 also offers
2581 * functions that help implement the data path for devices
2582 * that do not do the 802.11/802.3 conversion on the device.
2586 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2587 * @skb: the 802.11 data frame
2588 * @addr: the device MAC address
2589 * @iftype: the virtual interface type
2591 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
2592 enum nl80211_iftype iftype
);
2595 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2596 * @skb: the 802.3 frame
2597 * @addr: the device MAC address
2598 * @iftype: the virtual interface type
2599 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2600 * @qos: build 802.11 QoS data frame
2602 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
2603 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
2606 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2608 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2609 * 802.3 frames. The @list will be empty if the decode fails. The
2610 * @skb is consumed after the function returns.
2612 * @skb: The input IEEE 802.11n A-MSDU frame.
2613 * @list: The output list of 802.3 frames. It must be allocated and
2614 * initialized by by the caller.
2615 * @addr: The device MAC address.
2616 * @iftype: The device interface type.
2617 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2618 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2620 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
2621 const u8
*addr
, enum nl80211_iftype iftype
,
2622 const unsigned int extra_headroom
,
2623 bool has_80211_header
);
2626 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2627 * @skb: the data frame
2629 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
);
2632 * cfg80211_find_ie - find information element in data
2635 * @ies: data consisting of IEs
2636 * @len: length of data
2638 * This function will return %NULL if the element ID could
2639 * not be found or if the element is invalid (claims to be
2640 * longer than the given data), or a pointer to the first byte
2641 * of the requested element, that is the byte containing the
2642 * element ID. There are no checks on the element length
2643 * other than having to fit into the given data.
2645 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
2648 * cfg80211_find_vendor_ie - find vendor specific information element in data
2651 * @oui_type: vendor-specific OUI type
2652 * @ies: data consisting of IEs
2653 * @len: length of data
2655 * This function will return %NULL if the vendor specific element ID
2656 * could not be found or if the element is invalid (claims to be
2657 * longer than the given data), or a pointer to the first byte
2658 * of the requested element, that is the byte containing the
2659 * element ID. There are no checks on the element length
2660 * other than having to fit into the given data.
2662 const u8
*cfg80211_find_vendor_ie(unsigned int oui
, u8 oui_type
,
2663 const u8
*ies
, int len
);
2666 * DOC: Regulatory enforcement infrastructure
2672 * regulatory_hint - driver hint to the wireless core a regulatory domain
2673 * @wiphy: the wireless device giving the hint (used only for reporting
2675 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2676 * should be in. If @rd is set this should be NULL. Note that if you
2677 * set this to NULL you should still set rd->alpha2 to some accepted
2680 * Wireless drivers can use this function to hint to the wireless core
2681 * what it believes should be the current regulatory domain by
2682 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2683 * domain should be in or by providing a completely build regulatory domain.
2684 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2685 * for a regulatory domain structure for the respective country.
2687 * The wiphy must have been registered to cfg80211 prior to this call.
2688 * For cfg80211 drivers this means you must first use wiphy_register(),
2689 * for mac80211 drivers you must first use ieee80211_register_hw().
2691 * Drivers should check the return value, its possible you can get
2694 extern int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
2697 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2698 * @wiphy: the wireless device we want to process the regulatory domain on
2699 * @regd: the custom regulatory domain to use for this wiphy
2701 * Drivers can sometimes have custom regulatory domains which do not apply
2702 * to a specific country. Drivers can use this to apply such custom regulatory
2703 * domains. This routine must be called prior to wiphy registration. The
2704 * custom regulatory domain will be trusted completely and as such previous
2705 * default channel settings will be disregarded. If no rule is found for a
2706 * channel on the regulatory domain the channel will be disabled.
2708 extern void wiphy_apply_custom_regulatory(
2709 struct wiphy
*wiphy
,
2710 const struct ieee80211_regdomain
*regd
);
2713 * freq_reg_info - get regulatory information for the given frequency
2714 * @wiphy: the wiphy for which we want to process this rule for
2715 * @center_freq: Frequency in KHz for which we want regulatory information for
2716 * @desired_bw_khz: the desired max bandwidth you want to use per
2717 * channel. Note that this is still 20 MHz if you want to use HT40
2718 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2719 * If set to 0 we'll assume you want the standard 20 MHz.
2720 * @reg_rule: the regulatory rule which we have for this frequency
2722 * Use this function to get the regulatory rule for a specific frequency on
2723 * a given wireless device. If the device has a specific regulatory domain
2724 * it wants to follow we respect that unless a country IE has been received
2725 * and processed already.
2727 * Returns 0 if it was able to find a valid regulatory rule which does
2728 * apply to the given center_freq otherwise it returns non-zero. It will
2729 * also return -ERANGE if we determine the given center_freq does not even have
2730 * a regulatory rule for a frequency range in the center_freq's band. See
2731 * freq_in_rule_band() for our current definition of a band -- this is purely
2732 * subjective and right now its 802.11 specific.
2734 extern int freq_reg_info(struct wiphy
*wiphy
,
2737 const struct ieee80211_reg_rule
**reg_rule
);
2740 * callbacks for asynchronous cfg80211 methods, notification
2741 * functions and BSS handling helpers
2745 * cfg80211_scan_done - notify that scan finished
2747 * @request: the corresponding scan request
2748 * @aborted: set to true if the scan was aborted for any reason,
2749 * userspace will be notified of that
2751 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
2754 * cfg80211_sched_scan_results - notify that new scan results are available
2756 * @wiphy: the wiphy which got scheduled scan results
2758 void cfg80211_sched_scan_results(struct wiphy
*wiphy
);
2761 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2763 * @wiphy: the wiphy on which the scheduled scan stopped
2765 * The driver can call this function to inform cfg80211 that the
2766 * scheduled scan had to be stopped, for whatever reason. The driver
2767 * is then called back via the sched_scan_stop operation when done.
2769 void cfg80211_sched_scan_stopped(struct wiphy
*wiphy
);
2772 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2774 * @wiphy: the wiphy reporting the BSS
2775 * @channel: The channel the frame was received on
2776 * @mgmt: the management frame (probe response or beacon)
2777 * @len: length of the management frame
2778 * @signal: the signal strength, type depends on the wiphy's signal_type
2779 * @gfp: context flags
2781 * This informs cfg80211 that BSS information was found and
2782 * the BSS should be updated/added.
2784 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2786 struct cfg80211_bss
* __must_check
2787 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
2788 struct ieee80211_channel
*channel
,
2789 struct ieee80211_mgmt
*mgmt
, size_t len
,
2790 s32 signal
, gfp_t gfp
);
2793 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2795 * @wiphy: the wiphy reporting the BSS
2796 * @channel: The channel the frame was received on
2797 * @bssid: the BSSID of the BSS
2798 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
2799 * @capability: the capability field sent by the peer
2800 * @beacon_interval: the beacon interval announced by the peer
2801 * @ie: additional IEs sent by the peer
2802 * @ielen: length of the additional IEs
2803 * @signal: the signal strength, type depends on the wiphy's signal_type
2804 * @gfp: context flags
2806 * This informs cfg80211 that BSS information was found and
2807 * the BSS should be updated/added.
2809 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2811 struct cfg80211_bss
* __must_check
2812 cfg80211_inform_bss(struct wiphy
*wiphy
,
2813 struct ieee80211_channel
*channel
,
2814 const u8
*bssid
, u64 tsf
, u16 capability
,
2815 u16 beacon_interval
, const u8
*ie
, size_t ielen
,
2816 s32 signal
, gfp_t gfp
);
2818 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
2819 struct ieee80211_channel
*channel
,
2821 const u8
*ssid
, size_t ssid_len
,
2822 u16 capa_mask
, u16 capa_val
);
2823 static inline struct cfg80211_bss
*
2824 cfg80211_get_ibss(struct wiphy
*wiphy
,
2825 struct ieee80211_channel
*channel
,
2826 const u8
*ssid
, size_t ssid_len
)
2828 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
2829 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
2832 struct cfg80211_bss
*cfg80211_get_mesh(struct wiphy
*wiphy
,
2833 struct ieee80211_channel
*channel
,
2834 const u8
*meshid
, size_t meshidlen
,
2837 * cfg80211_ref_bss - reference BSS struct
2838 * @bss: the BSS struct to reference
2840 * Increments the refcount of the given BSS struct.
2842 void cfg80211_ref_bss(struct cfg80211_bss
*bss
);
2845 * cfg80211_put_bss - unref BSS struct
2846 * @bss: the BSS struct
2848 * Decrements the refcount of the given BSS struct.
2850 void cfg80211_put_bss(struct cfg80211_bss
*bss
);
2853 * cfg80211_unlink_bss - unlink BSS from internal data structures
2855 * @bss: the bss to remove
2857 * This function removes the given BSS from the internal data structures
2858 * thereby making it no longer show up in scan results etc. Use this
2859 * function when you detect a BSS is gone. Normally BSSes will also time
2860 * out, so it is not necessary to use this function at all.
2862 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
2865 * cfg80211_send_rx_auth - notification of processed authentication
2866 * @dev: network device
2867 * @buf: authentication frame (header + body)
2868 * @len: length of the frame data
2870 * This function is called whenever an authentication has been processed in
2871 * station mode. The driver is required to call either this function or
2872 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2873 * call. This function may sleep.
2875 void cfg80211_send_rx_auth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2878 * cfg80211_send_auth_timeout - notification of timed out authentication
2879 * @dev: network device
2880 * @addr: The MAC address of the device with which the authentication timed out
2882 * This function may sleep.
2884 void cfg80211_send_auth_timeout(struct net_device
*dev
, const u8
*addr
);
2887 * cfg80211_send_rx_assoc - notification of processed association
2888 * @dev: network device
2889 * @bss: the BSS struct association was requested for, the struct reference
2890 * is owned by cfg80211 after this call
2891 * @buf: (re)association response frame (header + body)
2892 * @len: length of the frame data
2894 * This function is called whenever a (re)association response has been
2895 * processed in station mode. The driver is required to call either this
2896 * function or cfg80211_send_assoc_timeout() to indicate the result of
2897 * cfg80211_ops::assoc() call. This function may sleep.
2899 void cfg80211_send_rx_assoc(struct net_device
*dev
, struct cfg80211_bss
*bss
,
2900 const u8
*buf
, size_t len
);
2903 * cfg80211_send_assoc_timeout - notification of timed out association
2904 * @dev: network device
2905 * @addr: The MAC address of the device with which the association timed out
2907 * This function may sleep.
2909 void cfg80211_send_assoc_timeout(struct net_device
*dev
, const u8
*addr
);
2912 * cfg80211_send_deauth - notification of processed deauthentication
2913 * @dev: network device
2914 * @buf: deauthentication frame (header + body)
2915 * @len: length of the frame data
2917 * This function is called whenever deauthentication has been processed in
2918 * station mode. This includes both received deauthentication frames and
2919 * locally generated ones. This function may sleep.
2921 void cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2924 * __cfg80211_send_deauth - notification of processed deauthentication
2925 * @dev: network device
2926 * @buf: deauthentication frame (header + body)
2927 * @len: length of the frame data
2929 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2931 void __cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2934 * cfg80211_send_disassoc - notification of processed disassociation
2935 * @dev: network device
2936 * @buf: disassociation response frame (header + body)
2937 * @len: length of the frame data
2939 * This function is called whenever disassociation has been processed in
2940 * station mode. This includes both received disassociation frames and locally
2941 * generated ones. This function may sleep.
2943 void cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
, size_t len
);
2946 * __cfg80211_send_disassoc - notification of processed disassociation
2947 * @dev: network device
2948 * @buf: disassociation response frame (header + body)
2949 * @len: length of the frame data
2951 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2953 void __cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
,
2957 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
2958 * @dev: network device
2959 * @buf: deauthentication frame (header + body)
2960 * @len: length of the frame data
2962 * This function is called whenever a received Deauthentication frame has been
2963 * dropped in station mode because of MFP being used but the Deauthentication
2964 * frame was not protected. This function may sleep.
2966 void cfg80211_send_unprot_deauth(struct net_device
*dev
, const u8
*buf
,
2970 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
2971 * @dev: network device
2972 * @buf: disassociation frame (header + body)
2973 * @len: length of the frame data
2975 * This function is called whenever a received Disassociation frame has been
2976 * dropped in station mode because of MFP being used but the Disassociation
2977 * frame was not protected. This function may sleep.
2979 void cfg80211_send_unprot_disassoc(struct net_device
*dev
, const u8
*buf
,
2983 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2984 * @dev: network device
2985 * @addr: The source MAC address of the frame
2986 * @key_type: The key type that the received frame used
2987 * @key_id: Key identifier (0..3). Can be -1 if missing.
2988 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2989 * @gfp: allocation flags
2991 * This function is called whenever the local MAC detects a MIC failure in a
2992 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
2995 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
2996 enum nl80211_key_type key_type
, int key_id
,
2997 const u8
*tsc
, gfp_t gfp
);
3000 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3002 * @dev: network device
3003 * @bssid: the BSSID of the IBSS joined
3004 * @gfp: allocation flags
3006 * This function notifies cfg80211 that the device joined an IBSS or
3007 * switched to a different BSSID. Before this function can be called,
3008 * either a beacon has to have been received from the IBSS, or one of
3009 * the cfg80211_inform_bss{,_frame} functions must have been called
3010 * with the locally generated beacon -- this guarantees that there is
3011 * always a scan result for this IBSS. cfg80211 will handle the rest.
3013 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
, gfp_t gfp
);
3016 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3018 * @dev: network device
3019 * @macaddr: the MAC address of the new candidate
3020 * @ie: information elements advertised by the peer candidate
3021 * @ie_len: lenght of the information elements buffer
3022 * @gfp: allocation flags
3024 * This function notifies cfg80211 that the mesh peer candidate has been
3025 * detected, most likely via a beacon or, less likely, via a probe response.
3026 * cfg80211 then sends a notification to userspace.
3028 void cfg80211_notify_new_peer_candidate(struct net_device
*dev
,
3029 const u8
*macaddr
, const u8
*ie
, u8 ie_len
, gfp_t gfp
);
3032 * DOC: RFkill integration
3034 * RFkill integration in cfg80211 is almost invisible to drivers,
3035 * as cfg80211 automatically registers an rfkill instance for each
3036 * wireless device it knows about. Soft kill is also translated
3037 * into disconnecting and turning all interfaces off, drivers are
3038 * expected to turn off the device when all interfaces are down.
3040 * However, devices may have a hard RFkill line, in which case they
3041 * also need to interact with the rfkill subsystem, via cfg80211.
3042 * They can do this with a few helper functions documented here.
3046 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3048 * @blocked: block status
3050 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
3053 * wiphy_rfkill_start_polling - start polling rfkill
3056 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
3059 * wiphy_rfkill_stop_polling - stop polling rfkill
3062 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
3064 #ifdef CONFIG_NL80211_TESTMODE
3068 * Test mode is a set of utility functions to allow drivers to
3069 * interact with driver-specific tools to aid, for instance,
3070 * factory programming.
3072 * This chapter describes how drivers interact with it, for more
3073 * information see the nl80211 book's chapter on it.
3077 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3079 * @approxlen: an upper bound of the length of the data that will
3080 * be put into the skb
3082 * This function allocates and pre-fills an skb for a reply to
3083 * the testmode command. Since it is intended for a reply, calling
3084 * it outside of the @testmode_cmd operation is invalid.
3086 * The returned skb (or %NULL if any errors happen) is pre-filled
3087 * with the wiphy index and set up in a way that any data that is
3088 * put into the skb (with skb_put(), nla_put() or similar) will end
3089 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
3090 * needs to be done with the skb is adding data for the corresponding
3091 * userspace tool which can then read that data out of the testdata
3092 * attribute. You must not modify the skb in any other way.
3094 * When done, call cfg80211_testmode_reply() with the skb and return
3095 * its error code as the result of the @testmode_cmd operation.
3097 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
3101 * cfg80211_testmode_reply - send the reply skb
3102 * @skb: The skb, must have been allocated with
3103 * cfg80211_testmode_alloc_reply_skb()
3105 * Returns an error code or 0 on success, since calling this
3106 * function will usually be the last thing before returning
3107 * from the @testmode_cmd you should return the error code.
3108 * Note that this function consumes the skb regardless of the
3111 int cfg80211_testmode_reply(struct sk_buff
*skb
);
3114 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3116 * @approxlen: an upper bound of the length of the data that will
3117 * be put into the skb
3118 * @gfp: allocation flags
3120 * This function allocates and pre-fills an skb for an event on the
3121 * testmode multicast group.
3123 * The returned skb (or %NULL if any errors happen) is set up in the
3124 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3125 * for an event. As there, you should simply add data to it that will
3126 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3127 * not modify the skb in any other way.
3129 * When done filling the skb, call cfg80211_testmode_event() with the
3130 * skb to send the event.
3132 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
3133 int approxlen
, gfp_t gfp
);
3136 * cfg80211_testmode_event - send the event
3137 * @skb: The skb, must have been allocated with
3138 * cfg80211_testmode_alloc_event_skb()
3139 * @gfp: allocation flags
3141 * This function sends the given @skb, which must have been allocated
3142 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3145 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
);
3147 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3148 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3150 #define CFG80211_TESTMODE_CMD(cmd)
3151 #define CFG80211_TESTMODE_DUMP(cmd)
3155 * cfg80211_connect_result - notify cfg80211 of connection result
3157 * @dev: network device
3158 * @bssid: the BSSID of the AP
3159 * @req_ie: association request IEs (maybe be %NULL)
3160 * @req_ie_len: association request IEs length
3161 * @resp_ie: association response IEs (may be %NULL)
3162 * @resp_ie_len: assoc response IEs length
3163 * @status: status code, 0 for successful connection, use
3164 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3165 * the real status code for failures.
3166 * @gfp: allocation flags
3168 * It should be called by the underlying driver whenever connect() has
3171 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
3172 const u8
*req_ie
, size_t req_ie_len
,
3173 const u8
*resp_ie
, size_t resp_ie_len
,
3174 u16 status
, gfp_t gfp
);
3177 * cfg80211_roamed - notify cfg80211 of roaming
3179 * @dev: network device
3180 * @channel: the channel of the new AP
3181 * @bssid: the BSSID of the new AP
3182 * @req_ie: association request IEs (maybe be %NULL)
3183 * @req_ie_len: association request IEs length
3184 * @resp_ie: association response IEs (may be %NULL)
3185 * @resp_ie_len: assoc response IEs length
3186 * @gfp: allocation flags
3188 * It should be called by the underlying driver whenever it roamed
3189 * from one AP to another while connected.
3191 void cfg80211_roamed(struct net_device
*dev
,
3192 struct ieee80211_channel
*channel
,
3194 const u8
*req_ie
, size_t req_ie_len
,
3195 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3198 * cfg80211_roamed_bss - notify cfg80211 of roaming
3200 * @dev: network device
3201 * @bss: entry of bss to which STA got roamed
3202 * @req_ie: association request IEs (maybe be %NULL)
3203 * @req_ie_len: association request IEs length
3204 * @resp_ie: association response IEs (may be %NULL)
3205 * @resp_ie_len: assoc response IEs length
3206 * @gfp: allocation flags
3208 * This is just a wrapper to notify cfg80211 of roaming event with driver
3209 * passing bss to avoid a race in timeout of the bss entry. It should be
3210 * called by the underlying driver whenever it roamed from one AP to another
3211 * while connected. Drivers which have roaming implemented in firmware
3212 * may use this function to avoid a race in bss entry timeout where the bss
3213 * entry of the new AP is seen in the driver, but gets timed out by the time
3214 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3215 * rdev->event_work. In case of any failures, the reference is released
3216 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3217 * it will be released while diconneting from the current bss.
3219 void cfg80211_roamed_bss(struct net_device
*dev
, struct cfg80211_bss
*bss
,
3220 const u8
*req_ie
, size_t req_ie_len
,
3221 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
3224 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3226 * @dev: network device
3227 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3228 * @ie_len: length of IEs
3229 * @reason: reason code for the disconnection, set it to 0 if unknown
3230 * @gfp: allocation flags
3232 * After it calls this function, the driver should enter an idle state
3233 * and not try to connect to any AP any more.
3235 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
3236 u8
*ie
, size_t ie_len
, gfp_t gfp
);
3239 * cfg80211_ready_on_channel - notification of remain_on_channel start
3240 * @dev: network device
3241 * @cookie: the request cookie
3242 * @chan: The current channel (from remain_on_channel request)
3243 * @channel_type: Channel type
3244 * @duration: Duration in milliseconds that the driver intents to remain on the
3246 * @gfp: allocation flags
3248 void cfg80211_ready_on_channel(struct net_device
*dev
, u64 cookie
,
3249 struct ieee80211_channel
*chan
,
3250 enum nl80211_channel_type channel_type
,
3251 unsigned int duration
, gfp_t gfp
);
3254 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3255 * @dev: network device
3256 * @cookie: the request cookie
3257 * @chan: The current channel (from remain_on_channel request)
3258 * @channel_type: Channel type
3259 * @gfp: allocation flags
3261 void cfg80211_remain_on_channel_expired(struct net_device
*dev
,
3263 struct ieee80211_channel
*chan
,
3264 enum nl80211_channel_type channel_type
,
3269 * cfg80211_new_sta - notify userspace about station
3272 * @mac_addr: the station's address
3273 * @sinfo: the station information
3274 * @gfp: allocation flags
3276 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
3277 struct station_info
*sinfo
, gfp_t gfp
);
3280 * cfg80211_del_sta - notify userspace about deletion of a station
3283 * @mac_addr: the station's address
3284 * @gfp: allocation flags
3286 void cfg80211_del_sta(struct net_device
*dev
, const u8
*mac_addr
, gfp_t gfp
);
3289 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3290 * @dev: network device
3291 * @freq: Frequency on which the frame was received in MHz
3292 * @sig_dbm: signal strength in mBm, or 0 if unknown
3293 * @buf: Management frame (header + body)
3294 * @len: length of the frame data
3295 * @gfp: context flags
3297 * Returns %true if a user space application has registered for this frame.
3298 * For action frames, that makes it responsible for rejecting unrecognized
3299 * action frames; %false otherwise, in which case for action frames the
3300 * driver is responsible for rejecting the frame.
3302 * This function is called whenever an Action frame is received for a station
3303 * mode interface, but is not processed in kernel.
3305 bool cfg80211_rx_mgmt(struct net_device
*dev
, int freq
, int sig_dbm
,
3306 const u8
*buf
, size_t len
, gfp_t gfp
);
3309 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3310 * @dev: network device
3311 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3312 * @buf: Management frame (header + body)
3313 * @len: length of the frame data
3314 * @ack: Whether frame was acknowledged
3315 * @gfp: context flags
3317 * This function is called whenever a management frame was requested to be
3318 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3319 * transmission attempt.
3321 void cfg80211_mgmt_tx_status(struct net_device
*dev
, u64 cookie
,
3322 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
3326 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3327 * @dev: network device
3328 * @rssi_event: the triggered RSSI event
3329 * @gfp: context flags
3331 * This function is called when a configured connection quality monitoring
3332 * rssi threshold reached event occurs.
3334 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
3335 enum nl80211_cqm_rssi_threshold_event rssi_event
,
3339 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3340 * @dev: network device
3341 * @peer: peer's MAC address
3342 * @num_packets: how many packets were lost -- should be a fixed threshold
3343 * but probably no less than maybe 50, or maybe a throughput dependent
3344 * threshold (to account for temporary interference)
3345 * @gfp: context flags
3347 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
3348 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
3351 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3352 * @dev: network device
3353 * @bssid: BSSID of AP (to avoid races)
3354 * @replay_ctr: new replay counter
3355 * @gfp: allocation flags
3357 void cfg80211_gtk_rekey_notify(struct net_device
*dev
, const u8
*bssid
,
3358 const u8
*replay_ctr
, gfp_t gfp
);
3361 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3362 * @dev: network device
3363 * @index: candidate index (the smaller the index, the higher the priority)
3364 * @bssid: BSSID of AP
3365 * @preauth: Whether AP advertises support for RSN pre-authentication
3366 * @gfp: allocation flags
3368 void cfg80211_pmksa_candidate_notify(struct net_device
*dev
, int index
,
3369 const u8
*bssid
, bool preauth
, gfp_t gfp
);
3372 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3373 * @dev: The device the frame matched to
3374 * @addr: the transmitter address
3375 * @gfp: context flags
3377 * This function is used in AP mode (only!) to inform userspace that
3378 * a spurious class 3 frame was received, to be able to deauth the
3380 * Returns %true if the frame was passed to userspace (or this failed
3381 * for a reason other than not having a subscription.)
3383 bool cfg80211_rx_spurious_frame(struct net_device
*dev
,
3384 const u8
*addr
, gfp_t gfp
);
3387 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3388 * @dev: The device the frame matched to
3389 * @addr: the transmitter address
3390 * @gfp: context flags
3392 * This function is used in AP mode (only!) to inform userspace that
3393 * an associated station sent a 4addr frame but that wasn't expected.
3394 * It is allowed and desirable to send this event only once for each
3395 * station to avoid event flooding.
3396 * Returns %true if the frame was passed to userspace (or this failed
3397 * for a reason other than not having a subscription.)
3399 bool cfg80211_rx_unexpected_4addr_frame(struct net_device
*dev
,
3400 const u8
*addr
, gfp_t gfp
);
3403 * cfg80211_probe_status - notify userspace about probe status
3404 * @dev: the device the probe was sent on
3405 * @addr: the address of the peer
3406 * @cookie: the cookie filled in @probe_client previously
3407 * @acked: indicates whether probe was acked or not
3408 * @gfp: allocation flags
3410 void cfg80211_probe_status(struct net_device
*dev
, const u8
*addr
,
3411 u64 cookie
, bool acked
, gfp_t gfp
);
3414 * cfg80211_report_obss_beacon - report beacon from other APs
3415 * @wiphy: The wiphy that received the beacon
3417 * @len: length of the frame
3418 * @freq: frequency the frame was received on
3419 * @sig_dbm: signal strength in mBm, or 0 if unknown
3420 * @gfp: allocation flags
3422 * Use this function to report to userspace when a beacon was
3423 * received. It is not useful to call this when there is no
3424 * netdev that is in AP/GO mode.
3426 void cfg80211_report_obss_beacon(struct wiphy
*wiphy
,
3427 const u8
*frame
, size_t len
,
3428 int freq
, int sig_dbm
, gfp_t gfp
);
3431 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3433 * @chan: main channel
3434 * @channel_type: HT mode
3436 * This function returns true if there is no secondary channel or the secondary
3437 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3439 bool cfg80211_can_beacon_sec_chan(struct wiphy
*wiphy
,
3440 struct ieee80211_channel
*chan
,
3441 enum nl80211_channel_type channel_type
);
3444 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3445 * @dev: the device which switched channels
3446 * @freq: new channel frequency (in MHz)
3447 * @type: channel type
3449 * Acquires wdev_lock, so must only be called from sleepable driver context!
3451 void cfg80211_ch_switch_notify(struct net_device
*dev
, int freq
,
3452 enum nl80211_channel_type type
);
3455 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3456 * @rate: given rate_info to calculate bitrate from
3458 * return 0 if MCS index >= 32
3460 u16
cfg80211_calculate_bitrate(struct rate_info
*rate
);
3462 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3464 /* wiphy_printk helpers, similar to dev_printk */
3466 #define wiphy_printk(level, wiphy, format, args...) \
3467 dev_printk(level, &(wiphy)->dev, format, ##args)
3468 #define wiphy_emerg(wiphy, format, args...) \
3469 dev_emerg(&(wiphy)->dev, format, ##args)
3470 #define wiphy_alert(wiphy, format, args...) \
3471 dev_alert(&(wiphy)->dev, format, ##args)
3472 #define wiphy_crit(wiphy, format, args...) \
3473 dev_crit(&(wiphy)->dev, format, ##args)
3474 #define wiphy_err(wiphy, format, args...) \
3475 dev_err(&(wiphy)->dev, format, ##args)
3476 #define wiphy_warn(wiphy, format, args...) \
3477 dev_warn(&(wiphy)->dev, format, ##args)
3478 #define wiphy_notice(wiphy, format, args...) \
3479 dev_notice(&(wiphy)->dev, format, ##args)
3480 #define wiphy_info(wiphy, format, args...) \
3481 dev_info(&(wiphy)->dev, format, ##args)
3483 #define wiphy_debug(wiphy, format, args...) \
3484 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3486 #define wiphy_dbg(wiphy, format, args...) \
3487 dev_dbg(&(wiphy)->dev, format, ##args)
3489 #if defined(VERBOSE_DEBUG)
3490 #define wiphy_vdbg wiphy_dbg
3492 #define wiphy_vdbg(wiphy, format, args...) \
3495 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3501 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3502 * of using a WARN/WARN_ON to get the message out, including the
3503 * file/line information and a backtrace.
3505 #define wiphy_WARN(wiphy, format, args...) \
3506 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3508 #endif /* __NET_CFG80211_H */