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/netlink.h>
17 #include <linux/skbuff.h>
18 #include <linux/nl80211.h>
19 #include <linux/if_ether.h>
20 #include <linux/ieee80211.h>
21 #include <net/regulatory.h>
26 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
27 * userspace and drivers, and offers some utility functionality associated
28 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
29 * by all modern wireless drivers in Linux, so that they offer a consistent
30 * API through nl80211. For backward compatibility, cfg80211 also offers
31 * wireless extensions to userspace, but hides them from drivers completely.
33 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
39 * DOC: Device registration
41 * In order for a driver to use cfg80211, it must register the hardware device
42 * with cfg80211. This happens through a number of hardware capability structs
45 * The fundamental structure for each device is the 'wiphy', of which each
46 * instance describes a physical wireless device connected to the system. Each
47 * such wiphy can have zero, one, or many virtual interfaces associated with
48 * it, which need to be identified as such by pointing the network interface's
49 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
50 * the wireless part of the interface, normally this struct is embedded in the
51 * network interface's private data area. Drivers can optionally allow creating
52 * or destroying virtual interfaces on the fly, but without at least one or the
53 * ability to create some the wireless device isn't useful.
55 * Each wiphy structure contains device capability information, and also has
56 * a pointer to the various operations the driver offers. The definitions and
57 * structures here describe these capabilities in detail.
61 * wireless hardware capability structures
65 * enum ieee80211_band - supported frequency bands
67 * The bands are assigned this way because the supported
68 * bitrates differ in these bands.
70 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
71 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
72 * @IEEE80211_NUM_BANDS: number of defined bands
75 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
76 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
83 * enum ieee80211_channel_flags - channel flags
85 * Channel flags set by the regulatory control code.
87 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
88 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
90 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
91 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
92 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
94 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
97 enum ieee80211_channel_flags {
98 IEEE80211_CHAN_DISABLED = 1<<0,
99 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
100 IEEE80211_CHAN_NO_IBSS = 1<<2,
101 IEEE80211_CHAN_RADAR = 1<<3,
102 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
103 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
106 #define IEEE80211_CHAN_NO_HT40 \
107 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
110 * struct ieee80211_channel - channel definition
112 * This structure describes a single channel for use
115 * @center_freq: center frequency in MHz
116 * @hw_value: hardware-specific value for the channel
117 * @flags: channel flags from &enum ieee80211_channel_flags.
118 * @orig_flags: channel flags at registration time, used by regulatory
119 * code to support devices with additional restrictions
120 * @band: band this channel belongs to.
121 * @max_antenna_gain: maximum antenna gain in dBi
122 * @max_power: maximum transmission power (in dBm)
123 * @max_reg_power: maximum regulatory transmission power (in dBm)
124 * @beacon_found: helper to regulatory code to indicate when a beacon
125 * has been found on this channel. Use regulatory_hint_found_beacon()
126 * to enable this, this is useful only on 5 GHz band.
127 * @orig_mag: internal use
128 * @orig_mpwr: internal use
130 struct ieee80211_channel {
131 enum ieee80211_band band;
135 int max_antenna_gain;
140 int orig_mag, orig_mpwr;
144 * enum ieee80211_rate_flags - rate flags
146 * Hardware/specification flags for rates. These are structured
147 * in a way that allows using the same bitrate structure for
148 * different bands/PHY modes.
150 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
151 * preamble on this bitrate; only relevant in 2.4GHz band and
153 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
154 * when used with 802.11a (on the 5 GHz band); filled by the
155 * core code when registering the wiphy.
156 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
157 * when used with 802.11b (on the 2.4 GHz band); filled by the
158 * core code when registering the wiphy.
159 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
160 * when used with 802.11g (on the 2.4 GHz band); filled by the
161 * core code when registering the wiphy.
162 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
164 enum ieee80211_rate_flags {
165 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
166 IEEE80211_RATE_MANDATORY_A = 1<<1,
167 IEEE80211_RATE_MANDATORY_B = 1<<2,
168 IEEE80211_RATE_MANDATORY_G = 1<<3,
169 IEEE80211_RATE_ERP_G = 1<<4,
173 * struct ieee80211_rate - bitrate definition
175 * This structure describes a bitrate that an 802.11 PHY can
176 * operate with. The two values @hw_value and @hw_value_short
177 * are only for driver use when pointers to this structure are
180 * @flags: rate-specific flags
181 * @bitrate: bitrate in units of 100 Kbps
182 * @hw_value: driver/hardware value for this rate
183 * @hw_value_short: driver/hardware value for this rate when
184 * short preamble is used
186 struct ieee80211_rate {
189 u16 hw_value, hw_value_short;
193 * struct ieee80211_sta_ht_cap - STA's HT capabilities
195 * This structure describes most essential parameters needed
196 * to describe 802.11n HT capabilities for an STA.
198 * @ht_supported: is HT supported by the STA
199 * @cap: HT capabilities map as described in 802.11n spec
200 * @ampdu_factor: Maximum A-MPDU length factor
201 * @ampdu_density: Minimum A-MPDU spacing
202 * @mcs: Supported MCS rates
204 struct ieee80211_sta_ht_cap {
205 u16 cap; /* use IEEE80211_HT_CAP_ */
209 struct ieee80211_mcs_info mcs;
213 * struct ieee80211_supported_band - frequency band definition
215 * This structure describes a frequency band a wiphy
216 * is able to operate in.
218 * @channels: Array of channels the hardware can operate in
220 * @band: the band this structure represents
221 * @n_channels: Number of channels in @channels
222 * @bitrates: Array of bitrates the hardware can operate with
223 * in this band. Must be sorted to give a valid "supported
224 * rates" IE, i.e. CCK rates first, then OFDM.
225 * @n_bitrates: Number of bitrates in @bitrates
226 * @ht_cap: HT capabilities in this band
228 struct ieee80211_supported_band {
229 struct ieee80211_channel *channels;
230 struct ieee80211_rate *bitrates;
231 enum ieee80211_band band;
234 struct ieee80211_sta_ht_cap ht_cap;
238 * Wireless hardware/device configuration structures and methods
242 * DOC: Actions and configuration
244 * Each wireless device and each virtual interface offer a set of configuration
245 * operations and other actions that are invoked by userspace. Each of these
246 * actions is described in the operations structure, and the parameters these
247 * operations use are described separately.
249 * Additionally, some operations are asynchronous and expect to get status
250 * information via some functions that drivers need to call.
252 * Scanning and BSS list handling with its associated functionality is described
253 * in a separate chapter.
257 * struct vif_params - describes virtual interface parameters
258 * @use_4addr: use 4-address frames
265 * struct key_params - key information
267 * Information about a key
270 * @key_len: length of key material
271 * @cipher: cipher suite selector
272 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
273 * with the get_key() callback, must be in little endian,
274 * length given by @seq_len.
275 * @seq_len: length of @seq.
286 * enum survey_info_flags - survey information flags
288 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
289 * @SURVEY_INFO_IN_USE: channel is currently being used
290 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
291 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
292 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
293 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
294 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
296 * Used by the driver to indicate which info in &struct survey_info
297 * it has filled in during the get_survey().
299 enum survey_info_flags {
300 SURVEY_INFO_NOISE_DBM = 1<<0,
301 SURVEY_INFO_IN_USE = 1<<1,
302 SURVEY_INFO_CHANNEL_TIME = 1<<2,
303 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
304 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
305 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
306 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
310 * struct survey_info - channel survey response
312 * @channel: the channel this survey record reports, mandatory
313 * @filled: bitflag of flags from &enum survey_info_flags
314 * @noise: channel noise in dBm. This and all following fields are
316 * @channel_time: amount of time in ms the radio spent on the channel
317 * @channel_time_busy: amount of time the primary channel was sensed busy
318 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
319 * @channel_time_rx: amount of time the radio spent receiving data
320 * @channel_time_tx: amount of time the radio spent transmitting data
322 * Used by dump_survey() to report back per-channel survey information.
324 * This structure can later be expanded with things like
325 * channel duty cycle etc.
328 struct ieee80211_channel *channel;
330 u64 channel_time_busy;
331 u64 channel_time_ext_busy;
339 * struct cfg80211_crypto_settings - Crypto settings
340 * @wpa_versions: indicates which, if any, WPA versions are enabled
341 * (from enum nl80211_wpa_versions)
342 * @cipher_group: group key cipher suite (or 0 if unset)
343 * @n_ciphers_pairwise: number of AP supported unicast ciphers
344 * @ciphers_pairwise: unicast key cipher suites
345 * @n_akm_suites: number of AKM suites
346 * @akm_suites: AKM suites
347 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
348 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
349 * required to assume that the port is unauthorized until authorized by
350 * user space. Otherwise, port is marked authorized by default.
351 * @control_port_ethertype: the control port protocol that should be
352 * allowed through even on unauthorized ports
353 * @control_port_no_encrypt: TRUE to prevent encryption of control port
356 struct cfg80211_crypto_settings {
359 int n_ciphers_pairwise;
360 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
362 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
364 __be16 control_port_ethertype;
365 bool control_port_no_encrypt;
369 * struct beacon_parameters - beacon parameters
371 * Used to configure the beacon for an interface.
373 * @head: head portion of beacon (before TIM IE)
374 * or %NULL if not changed
375 * @tail: tail portion of beacon (after TIM IE)
376 * or %NULL if not changed
377 * @interval: beacon interval or zero if not changed
378 * @dtim_period: DTIM period or zero if not changed
379 * @head_len: length of @head
380 * @tail_len: length of @tail
381 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
383 * @ssid_len: length of @ssid
384 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
385 * @crypto: crypto settings
386 * @privacy: the BSS uses privacy
387 * @auth_type: Authentication type (algorithm)
388 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
389 * @beacon_ies_len: length of beacon_ies in octets
390 * @proberesp_ies: extra information element(s) to add into Probe Response
392 * @proberesp_ies_len: length of proberesp_ies in octets
393 * @assocresp_ies: extra information element(s) to add into (Re)Association
394 * Response frames or %NULL
395 * @assocresp_ies_len: length of assocresp_ies in octets
396 * @probe_resp_len: length of probe response template (@probe_resp)
397 * @probe_resp: probe response template (AP mode only)
399 struct beacon_parameters {
401 int interval, dtim_period;
402 int head_len, tail_len;
405 enum nl80211_hidden_ssid hidden_ssid;
406 struct cfg80211_crypto_settings crypto;
408 enum nl80211_auth_type auth_type;
409 const u8 *beacon_ies;
410 size_t beacon_ies_len;
411 const u8 *proberesp_ies;
412 size_t proberesp_ies_len;
413 const u8 *assocresp_ies;
414 size_t assocresp_ies_len;
420 * enum plink_action - actions to perform in mesh peers
422 * @PLINK_ACTION_INVALID: action 0 is reserved
423 * @PLINK_ACTION_OPEN: start mesh peer link establishment
424 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
427 PLINK_ACTION_INVALID,
433 * enum station_parameters_apply_mask - station parameter values to apply
434 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
436 * Not all station parameters have in-band "no change" signalling,
437 * for those that don't these flags will are used.
439 enum station_parameters_apply_mask {
440 STATION_PARAM_APPLY_UAPSD = BIT(0),
444 * struct station_parameters - station parameters
446 * Used to change and create a new station.
448 * @vlan: vlan interface station should belong to
449 * @supported_rates: supported rates in IEEE 802.11 format
450 * (or NULL for no change)
451 * @supported_rates_len: number of supported rates
452 * @sta_flags_mask: station flags that changed
453 * (bitmask of BIT(NL80211_STA_FLAG_...))
454 * @sta_flags_set: station flags values
455 * (bitmask of BIT(NL80211_STA_FLAG_...))
456 * @listen_interval: listen interval or -1 for no change
457 * @aid: AID or zero for no change
458 * @plink_action: plink action to take
459 * @plink_state: set the peer link state for a station
460 * @ht_capa: HT capabilities of station
461 * @uapsd_queues: bitmap of queues configured for uapsd. same format
462 * as the AC bitmap in the QoS info field
463 * @max_sp: max Service Period. same format as the MAX_SP in the
464 * QoS info field (but already shifted down)
465 * @sta_modify_mask: bitmap indicating which parameters changed
466 * (for those that don't have a natural "no change" value),
467 * see &enum station_parameters_apply_mask
469 struct station_parameters {
471 struct net_device *vlan;
472 u32 sta_flags_mask, sta_flags_set;
476 u8 supported_rates_len;
479 struct ieee80211_ht_cap *ht_capa;
485 * enum station_info_flags - station information flags
487 * Used by the driver to indicate which info in &struct station_info
488 * it has filled in during get_station() or dump_station().
490 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
491 * @STATION_INFO_RX_BYTES: @rx_bytes filled
492 * @STATION_INFO_TX_BYTES: @tx_bytes filled
493 * @STATION_INFO_LLID: @llid filled
494 * @STATION_INFO_PLID: @plid filled
495 * @STATION_INFO_PLINK_STATE: @plink_state filled
496 * @STATION_INFO_SIGNAL: @signal filled
497 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
498 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
499 * @STATION_INFO_RX_PACKETS: @rx_packets filled
500 * @STATION_INFO_TX_PACKETS: @tx_packets filled
501 * @STATION_INFO_TX_RETRIES: @tx_retries filled
502 * @STATION_INFO_TX_FAILED: @tx_failed filled
503 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
504 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
505 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
506 * @STATION_INFO_BSS_PARAM: @bss_param filled
507 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
508 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
509 * @STATION_INFO_STA_FLAGS: @sta_flags filled
510 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
512 enum station_info_flags {
513 STATION_INFO_INACTIVE_TIME = 1<<0,
514 STATION_INFO_RX_BYTES = 1<<1,
515 STATION_INFO_TX_BYTES = 1<<2,
516 STATION_INFO_LLID = 1<<3,
517 STATION_INFO_PLID = 1<<4,
518 STATION_INFO_PLINK_STATE = 1<<5,
519 STATION_INFO_SIGNAL = 1<<6,
520 STATION_INFO_TX_BITRATE = 1<<7,
521 STATION_INFO_RX_PACKETS = 1<<8,
522 STATION_INFO_TX_PACKETS = 1<<9,
523 STATION_INFO_TX_RETRIES = 1<<10,
524 STATION_INFO_TX_FAILED = 1<<11,
525 STATION_INFO_RX_DROP_MISC = 1<<12,
526 STATION_INFO_SIGNAL_AVG = 1<<13,
527 STATION_INFO_RX_BITRATE = 1<<14,
528 STATION_INFO_BSS_PARAM = 1<<15,
529 STATION_INFO_CONNECTED_TIME = 1<<16,
530 STATION_INFO_ASSOC_REQ_IES = 1<<17,
531 STATION_INFO_STA_FLAGS = 1<<18,
532 STATION_INFO_BEACON_LOSS_COUNT = 1<<19
536 * enum station_info_rate_flags - bitrate info flags
538 * Used by the driver to indicate the specific rate transmission
539 * type for 802.11n transmissions.
541 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
542 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
543 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
545 enum rate_info_flags {
546 RATE_INFO_FLAGS_MCS = 1<<0,
547 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
548 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
552 * struct rate_info - bitrate information
554 * Information about a receiving or transmitting bitrate
556 * @flags: bitflag of flags from &enum rate_info_flags
557 * @mcs: mcs index if struct describes a 802.11n bitrate
558 * @legacy: bitrate in 100kbit/s for 802.11abg
567 * enum station_info_rate_flags - bitrate info flags
569 * Used by the driver to indicate the specific rate transmission
570 * type for 802.11n transmissions.
572 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
573 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
574 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
576 enum bss_param_flags {
577 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
578 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
579 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
583 * struct sta_bss_parameters - BSS parameters for the attached station
585 * Information about the currently associated BSS
587 * @flags: bitflag of flags from &enum bss_param_flags
588 * @dtim_period: DTIM period for the BSS
589 * @beacon_interval: beacon interval
591 struct sta_bss_parameters {
598 * struct station_info - station information
600 * Station information filled by driver for get_station() and dump_station.
602 * @filled: bitflag of flags from &enum station_info_flags
603 * @connected_time: time(in secs) since a station is last connected
604 * @inactive_time: time since last station activity (tx/rx) in milliseconds
605 * @rx_bytes: bytes received from this station
606 * @tx_bytes: bytes transmitted to this station
607 * @llid: mesh local link id
608 * @plid: mesh peer link id
609 * @plink_state: mesh peer link state
610 * @signal: signal strength of last received packet in dBm
611 * @signal_avg: signal strength average in dBm
612 * @txrate: current unicast bitrate from this station
613 * @rxrate: current unicast bitrate to this station
614 * @rx_packets: packets received from this station
615 * @tx_packets: packets transmitted to this station
616 * @tx_retries: cumulative retry counts
617 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
618 * @rx_dropped_misc: Dropped for un-specified reason.
619 * @bss_param: current BSS parameters
620 * @generation: generation number for nl80211 dumps.
621 * This number should increase every time the list of stations
622 * changes, i.e. when a station is added or removed, so that
623 * userspace can tell whether it got a consistent snapshot.
624 * @assoc_req_ies: IEs from (Re)Association Request.
625 * This is used only when in AP mode with drivers that do not use
626 * user space MLME/SME implementation. The information is provided for
627 * the cfg80211_new_sta() calls to notify user space of the IEs.
628 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
629 * @sta_flags: station flags mask & values
630 * @beacon_loss_count: Number of times beacon loss event has triggered.
632 struct station_info {
643 struct rate_info txrate;
644 struct rate_info rxrate;
650 struct sta_bss_parameters bss_param;
651 struct nl80211_sta_flag_update sta_flags;
655 const u8 *assoc_req_ies;
656 size_t assoc_req_ies_len;
658 u32 beacon_loss_count;
661 * Note: Add a new enum station_info_flags value for each new field and
662 * use it to check which fields are initialized.
667 * enum monitor_flags - monitor flags
669 * Monitor interface configuration flags. Note that these must be the bits
670 * according to the nl80211 flags.
672 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
673 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
674 * @MONITOR_FLAG_CONTROL: pass control frames
675 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
676 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
679 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
680 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
681 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
682 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
683 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
687 * enum mpath_info_flags - mesh path information flags
689 * Used by the driver to indicate which info in &struct mpath_info it has filled
690 * in during get_station() or dump_station().
692 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
693 * @MPATH_INFO_SN: @sn filled
694 * @MPATH_INFO_METRIC: @metric filled
695 * @MPATH_INFO_EXPTIME: @exptime filled
696 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
697 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
698 * @MPATH_INFO_FLAGS: @flags filled
700 enum mpath_info_flags {
701 MPATH_INFO_FRAME_QLEN = BIT(0),
702 MPATH_INFO_SN = BIT(1),
703 MPATH_INFO_METRIC = BIT(2),
704 MPATH_INFO_EXPTIME = BIT(3),
705 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
706 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
707 MPATH_INFO_FLAGS = BIT(6),
711 * struct mpath_info - mesh path information
713 * Mesh path information filled by driver for get_mpath() and dump_mpath().
715 * @filled: bitfield of flags from &enum mpath_info_flags
716 * @frame_qlen: number of queued frames for this destination
717 * @sn: target sequence number
718 * @metric: metric (cost) of this mesh path
719 * @exptime: expiration time for the mesh path from now, in msecs
720 * @flags: mesh path flags
721 * @discovery_timeout: total mesh path discovery timeout, in msecs
722 * @discovery_retries: mesh path discovery retries
723 * @generation: generation number for nl80211 dumps.
724 * This number should increase every time the list of mesh paths
725 * changes, i.e. when a station is added or removed, so that
726 * userspace can tell whether it got a consistent snapshot.
734 u32 discovery_timeout;
735 u8 discovery_retries;
742 * struct bss_parameters - BSS parameters
744 * Used to change BSS parameters (mainly for AP mode).
746 * @use_cts_prot: Whether to use CTS protection
747 * (0 = no, 1 = yes, -1 = do not change)
748 * @use_short_preamble: Whether the use of short preambles is allowed
749 * (0 = no, 1 = yes, -1 = do not change)
750 * @use_short_slot_time: Whether the use of short slot time is allowed
751 * (0 = no, 1 = yes, -1 = do not change)
752 * @basic_rates: basic rates in IEEE 802.11 format
753 * (or NULL for no change)
754 * @basic_rates_len: number of basic rates
755 * @ap_isolate: do not forward packets between connected stations
756 * @ht_opmode: HT Operation mode
757 * (u16 = opmode, -1 = do not change)
759 struct bss_parameters {
761 int use_short_preamble;
762 int use_short_slot_time;
770 * struct mesh_config - 802.11s mesh configuration
772 * These parameters can be changed while the mesh is active.
776 /* Mesh plink management parameters */
777 u16 dot11MeshRetryTimeout;
778 u16 dot11MeshConfirmTimeout;
779 u16 dot11MeshHoldingTimeout;
780 u16 dot11MeshMaxPeerLinks;
781 u8 dot11MeshMaxRetries;
783 /* ttl used in path selection information elements */
785 bool auto_open_plinks;
786 /* HWMP parameters */
787 u8 dot11MeshHWMPmaxPREQretries;
788 u32 path_refresh_time;
789 u16 min_discovery_timeout;
790 u32 dot11MeshHWMPactivePathTimeout;
791 u16 dot11MeshHWMPpreqMinInterval;
792 u16 dot11MeshHWMPperrMinInterval;
793 u16 dot11MeshHWMPnetDiameterTraversalTime;
794 u8 dot11MeshHWMPRootMode;
795 u16 dot11MeshHWMPRannInterval;
796 /* This is missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol
797 * set to true only means that the station will announce others it's a
798 * mesh gate, but not necessarily using the gate announcement protocol.
799 * Still keeping the same nomenclature to be in sync with the spec. */
800 bool dot11MeshGateAnnouncementProtocol;
801 bool dot11MeshForwarding;
805 * struct mesh_setup - 802.11s mesh setup configuration
806 * @mesh_id: the mesh ID
807 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
808 * @path_sel_proto: which path selection protocol to use
809 * @path_metric: which metric to use
810 * @ie: vendor information elements (optional)
811 * @ie_len: length of vendor information elements
812 * @is_authenticated: this mesh requires authentication
813 * @is_secure: this mesh uses security
814 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
816 * These parameters are fixed when the mesh is created.
825 bool is_authenticated;
827 int mcast_rate[IEEE80211_NUM_BANDS];
831 * struct ieee80211_txq_params - TX queue parameters
832 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
833 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
834 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
836 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
838 * @aifs: Arbitration interframe space [0..255]
840 struct ieee80211_txq_params {
841 enum nl80211_txq_q queue;
848 /* from net/wireless.h */
852 * DOC: Scanning and BSS list handling
854 * The scanning process itself is fairly simple, but cfg80211 offers quite
855 * a bit of helper functionality. To start a scan, the scan operation will
856 * be invoked with a scan definition. This scan definition contains the
857 * channels to scan, and the SSIDs to send probe requests for (including the
858 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
859 * probe. Additionally, a scan request may contain extra information elements
860 * that should be added to the probe request. The IEs are guaranteed to be
861 * well-formed, and will not exceed the maximum length the driver advertised
862 * in the wiphy structure.
864 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
865 * it is responsible for maintaining the BSS list; the driver should not
866 * maintain a list itself. For this notification, various functions exist.
868 * Since drivers do not maintain a BSS list, there are also a number of
869 * functions to search for a BSS and obtain information about it from the
870 * BSS structure cfg80211 maintains. The BSS list is also made available
875 * struct cfg80211_ssid - SSID description
877 * @ssid_len: length of the ssid
879 struct cfg80211_ssid {
880 u8 ssid[IEEE80211_MAX_SSID_LEN];
885 * struct cfg80211_scan_request - scan request description
887 * @ssids: SSIDs to scan for (active scan only)
888 * @n_ssids: number of SSIDs
889 * @channels: channels to scan on.
890 * @n_channels: total number of channels to scan
891 * @ie: optional information element(s) to add into Probe Request or %NULL
892 * @ie_len: length of ie in octets
893 * @rates: bitmap of rates to advertise for each band
894 * @wiphy: the wiphy this was for
895 * @dev: the interface
896 * @aborted: (internal) scan request was notified as aborted
897 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
899 struct cfg80211_scan_request {
900 struct cfg80211_ssid *ssids;
906 u32 rates[IEEE80211_NUM_BANDS];
910 struct net_device *dev;
915 struct ieee80211_channel *channels[0];
919 * struct cfg80211_match_set - sets of attributes to match
921 * @ssid: SSID to be matched
923 struct cfg80211_match_set {
924 struct cfg80211_ssid ssid;
928 * struct cfg80211_sched_scan_request - scheduled scan request description
930 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
931 * @n_ssids: number of SSIDs
932 * @n_channels: total number of channels to scan
933 * @interval: interval between each scheduled scan cycle
934 * @ie: optional information element(s) to add into Probe Request or %NULL
935 * @ie_len: length of ie in octets
936 * @match_sets: sets of parameters to be matched for a scan result
937 * entry to be considered valid and to be passed to the host
938 * (others are filtered out).
939 * If ommited, all results are passed.
940 * @n_match_sets: number of match sets
941 * @wiphy: the wiphy this was for
942 * @dev: the interface
943 * @channels: channels to scan
945 struct cfg80211_sched_scan_request {
946 struct cfg80211_ssid *ssids;
952 struct cfg80211_match_set *match_sets;
957 struct net_device *dev;
960 struct ieee80211_channel *channels[0];
964 * enum cfg80211_signal_type - signal type
966 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
967 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
968 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
970 enum cfg80211_signal_type {
971 CFG80211_SIGNAL_TYPE_NONE,
972 CFG80211_SIGNAL_TYPE_MBM,
973 CFG80211_SIGNAL_TYPE_UNSPEC,
977 * struct cfg80211_bss - BSS description
979 * This structure describes a BSS (which may also be a mesh network)
980 * for use in scan results and similar.
982 * @channel: channel this BSS is on
983 * @bssid: BSSID of the BSS
984 * @tsf: timestamp of last received update
985 * @beacon_interval: the beacon interval as from the frame
986 * @capability: the capability field in host byte order
987 * @information_elements: the information elements (Note that there
988 * is no guarantee that these are well-formed!); this is a pointer to
989 * either the beacon_ies or proberesp_ies depending on whether Probe
990 * Response frame has been received
991 * @len_information_elements: total length of the information elements
992 * @beacon_ies: the information elements from the last Beacon frame
993 * @len_beacon_ies: total length of the beacon_ies
994 * @proberesp_ies: the information elements from the last Probe Response frame
995 * @len_proberesp_ies: total length of the proberesp_ies
996 * @signal: signal strength value (type depends on the wiphy's signal_type)
997 * @free_priv: function pointer to free private data
998 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1000 struct cfg80211_bss {
1001 struct ieee80211_channel *channel;
1005 u16 beacon_interval;
1007 u8 *information_elements;
1008 size_t len_information_elements;
1010 size_t len_beacon_ies;
1012 size_t len_proberesp_ies;
1016 void (*free_priv)(struct cfg80211_bss *bss);
1017 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
1021 * ieee80211_bss_get_ie - find IE with given ID
1022 * @bss: the bss to search
1024 * Returns %NULL if not found.
1026 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1030 * struct cfg80211_auth_request - Authentication request data
1032 * This structure provides information needed to complete IEEE 802.11
1035 * @bss: The BSS to authenticate with.
1036 * @auth_type: Authentication type (algorithm)
1037 * @ie: Extra IEs to add to Authentication frame or %NULL
1038 * @ie_len: Length of ie buffer in octets
1039 * @key_len: length of WEP key for shared key authentication
1040 * @key_idx: index of WEP key for shared key authentication
1041 * @key: WEP key for shared key authentication
1042 * @local_state_change: This is a request for a local state only, i.e., no
1043 * Authentication frame is to be transmitted and authentication state is
1044 * to be changed without having to wait for a response from the peer STA
1047 struct cfg80211_auth_request {
1048 struct cfg80211_bss *bss;
1051 enum nl80211_auth_type auth_type;
1053 u8 key_len, key_idx;
1054 bool local_state_change;
1058 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1060 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1062 enum cfg80211_assoc_req_flags {
1063 ASSOC_REQ_DISABLE_HT = BIT(0),
1067 * struct cfg80211_assoc_request - (Re)Association request data
1069 * This structure provides information needed to complete IEEE 802.11
1071 * @bss: The BSS to associate with.
1072 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1073 * @ie_len: Length of ie buffer in octets
1074 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1075 * @crypto: crypto settings
1076 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1077 * @flags: See &enum cfg80211_assoc_req_flags
1078 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1079 * will be used in ht_capa. Un-supported values will be ignored.
1080 * @ht_capa_mask: The bits of ht_capa which are to be used.
1082 struct cfg80211_assoc_request {
1083 struct cfg80211_bss *bss;
1084 const u8 *ie, *prev_bssid;
1086 struct cfg80211_crypto_settings crypto;
1089 struct ieee80211_ht_cap ht_capa;
1090 struct ieee80211_ht_cap ht_capa_mask;
1094 * struct cfg80211_deauth_request - Deauthentication request data
1096 * This structure provides information needed to complete IEEE 802.11
1099 * @bss: the BSS to deauthenticate from
1100 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1101 * @ie_len: Length of ie buffer in octets
1102 * @reason_code: The reason code for the deauthentication
1103 * @local_state_change: This is a request for a local state only, i.e., no
1104 * Deauthentication frame is to be transmitted.
1106 struct cfg80211_deauth_request {
1107 struct cfg80211_bss *bss;
1111 bool local_state_change;
1115 * struct cfg80211_disassoc_request - Disassociation request data
1117 * This structure provides information needed to complete IEEE 802.11
1120 * @bss: the BSS to disassociate from
1121 * @ie: Extra IEs to add to Disassociation frame or %NULL
1122 * @ie_len: Length of ie buffer in octets
1123 * @reason_code: The reason code for the disassociation
1124 * @local_state_change: This is a request for a local state only, i.e., no
1125 * Disassociation frame is to be transmitted.
1127 struct cfg80211_disassoc_request {
1128 struct cfg80211_bss *bss;
1132 bool local_state_change;
1136 * struct cfg80211_ibss_params - IBSS parameters
1138 * This structure defines the IBSS parameters for the join_ibss()
1141 * @ssid: The SSID, will always be non-null.
1142 * @ssid_len: The length of the SSID, will always be non-zero.
1143 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1144 * search for IBSSs with a different BSSID.
1145 * @channel: The channel to use if no IBSS can be found to join.
1146 * @channel_type: channel type (HT mode)
1147 * @channel_fixed: The channel should be fixed -- do not search for
1148 * IBSSs to join on other channels.
1149 * @ie: information element(s) to include in the beacon
1150 * @ie_len: length of that
1151 * @beacon_interval: beacon interval to use
1152 * @privacy: this is a protected network, keys will be configured
1154 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1155 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1157 struct cfg80211_ibss_params {
1160 struct ieee80211_channel *channel;
1161 enum nl80211_channel_type channel_type;
1163 u8 ssid_len, ie_len;
1164 u16 beacon_interval;
1168 int mcast_rate[IEEE80211_NUM_BANDS];
1172 * struct cfg80211_connect_params - Connection parameters
1174 * This structure provides information needed to complete IEEE 802.11
1175 * authentication and association.
1177 * @channel: The channel to use or %NULL if not specified (auto-select based
1179 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1182 * @ssid_len: Length of ssid in octets
1183 * @auth_type: Authentication type (algorithm)
1184 * @ie: IEs for association request
1185 * @ie_len: Length of assoc_ie in octets
1186 * @privacy: indicates whether privacy-enabled APs should be used
1187 * @crypto: crypto settings
1188 * @key_len: length of WEP key for shared key authentication
1189 * @key_idx: index of WEP key for shared key authentication
1190 * @key: WEP key for shared key authentication
1191 * @flags: See &enum cfg80211_assoc_req_flags
1192 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1193 * will be used in ht_capa. Un-supported values will be ignored.
1194 * @ht_capa_mask: The bits of ht_capa which are to be used.
1196 struct cfg80211_connect_params {
1197 struct ieee80211_channel *channel;
1201 enum nl80211_auth_type auth_type;
1205 struct cfg80211_crypto_settings crypto;
1207 u8 key_len, key_idx;
1209 struct ieee80211_ht_cap ht_capa;
1210 struct ieee80211_ht_cap ht_capa_mask;
1214 * enum wiphy_params_flags - set_wiphy_params bitfield values
1215 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1216 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1217 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1218 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1219 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1221 enum wiphy_params_flags {
1222 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
1223 WIPHY_PARAM_RETRY_LONG = 1 << 1,
1224 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
1225 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
1226 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
1230 * cfg80211_bitrate_mask - masks for bitrate control
1232 struct cfg80211_bitrate_mask {
1235 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
1236 } control[IEEE80211_NUM_BANDS];
1239 * struct cfg80211_pmksa - PMK Security Association
1241 * This structure is passed to the set/del_pmksa() method for PMKSA
1244 * @bssid: The AP's BSSID.
1245 * @pmkid: The PMK material itself.
1247 struct cfg80211_pmksa {
1253 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1254 * @mask: bitmask where to match pattern and where to ignore bytes,
1255 * one bit per byte, in same format as nl80211
1256 * @pattern: bytes to match where bitmask is 1
1257 * @pattern_len: length of pattern (in bytes)
1259 * Internal note: @mask and @pattern are allocated in one chunk of
1260 * memory, free @mask only!
1262 struct cfg80211_wowlan_trig_pkt_pattern {
1268 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1270 * This structure defines the enabled WoWLAN triggers for the device.
1271 * @any: wake up on any activity -- special trigger if device continues
1272 * operating as normal during suspend
1273 * @disconnect: wake up if getting disconnected
1274 * @magic_pkt: wake up on receiving magic packet
1275 * @patterns: wake up on receiving packet matching a pattern
1276 * @n_patterns: number of patterns
1277 * @gtk_rekey_failure: wake up on GTK rekey failure
1278 * @eap_identity_req: wake up on EAP identity request packet
1279 * @four_way_handshake: wake up on 4-way handshake
1280 * @rfkill_release: wake up when rfkill is released
1282 struct cfg80211_wowlan {
1283 bool any, disconnect, magic_pkt, gtk_rekey_failure,
1284 eap_identity_req, four_way_handshake,
1286 struct cfg80211_wowlan_trig_pkt_pattern *patterns;
1291 * struct cfg80211_gtk_rekey_data - rekey data
1292 * @kek: key encryption key
1293 * @kck: key confirmation key
1294 * @replay_ctr: replay counter
1296 struct cfg80211_gtk_rekey_data {
1297 u8 kek[NL80211_KEK_LEN];
1298 u8 kck[NL80211_KCK_LEN];
1299 u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
1303 * struct cfg80211_ops - backend description for wireless configuration
1305 * This struct is registered by fullmac card drivers and/or wireless stacks
1306 * in order to handle configuration requests on their interfaces.
1308 * All callbacks except where otherwise noted should return 0
1309 * on success or a negative error code.
1311 * All operations are currently invoked under rtnl for consistency with the
1312 * wireless extensions but this is subject to reevaluation as soon as this
1313 * code is used more widely and we have a first user without wext.
1315 * @suspend: wiphy device needs to be suspended. The variable @wow will
1316 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1317 * configured for the device.
1318 * @resume: wiphy device needs to be resumed
1320 * @add_virtual_intf: create a new virtual interface with the given name,
1321 * must set the struct wireless_dev's iftype. Beware: You must create
1322 * the new netdev in the wiphy's network namespace! Returns the netdev,
1325 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1327 * @change_virtual_intf: change type/configuration of virtual interface,
1328 * keep the struct wireless_dev's iftype updated.
1330 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1331 * when adding a group key.
1333 * @get_key: get information about the key with the given parameters.
1334 * @mac_addr will be %NULL when requesting information for a group
1335 * key. All pointers given to the @callback function need not be valid
1336 * after it returns. This function should return an error if it is
1337 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1339 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1340 * and @key_index, return -ENOENT if the key doesn't exist.
1342 * @set_default_key: set the default key on an interface
1344 * @set_default_mgmt_key: set the default management frame key on an interface
1346 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1348 * @add_beacon: Add a beacon with given parameters, @head, @interval
1349 * and @dtim_period will be valid, @tail is optional.
1350 * @set_beacon: Change the beacon parameters for an access point mode
1351 * interface. This should reject the call when no beacon has been
1353 * @del_beacon: Remove beacon configuration and stop sending the beacon.
1355 * @add_station: Add a new station.
1356 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1357 * @change_station: Modify a given station. Note that flags changes are not much
1358 * validated in cfg80211, in particular the auth/assoc/authorized flags
1359 * might come to the driver in invalid combinations -- make sure to check
1360 * them, also against the existing state! Also, supported_rates changes are
1361 * not checked in station mode -- drivers need to reject (or ignore) them
1362 * for anything but TDLS peers.
1363 * @get_station: get station information for the station identified by @mac
1364 * @dump_station: dump station callback -- resume dump at index @idx
1366 * @add_mpath: add a fixed mesh path
1367 * @del_mpath: delete a given mesh path
1368 * @change_mpath: change a given mesh path
1369 * @get_mpath: get a mesh path for the given parameters
1370 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1371 * @join_mesh: join the mesh network with the specified parameters
1372 * @leave_mesh: leave the current mesh network
1374 * @get_mesh_config: Get the current mesh configuration
1376 * @update_mesh_config: Update mesh parameters on a running mesh.
1377 * The mask is a bitfield which tells us which parameters to
1378 * set, and which to leave alone.
1380 * @change_bss: Modify parameters for a given BSS.
1382 * @set_txq_params: Set TX queue parameters
1384 * @set_channel: Set channel for a given wireless interface. Some devices
1385 * may support multi-channel operation (by channel hopping) so cfg80211
1386 * doesn't verify much. Note, however, that the passed netdev may be
1387 * %NULL as well if the user requested changing the channel for the
1388 * device itself, or for a monitor interface.
1389 * @get_channel: Get the current operating channel, should return %NULL if
1390 * there's no single defined operating channel if for example the
1391 * device implements channel hopping for multi-channel virtual interfaces.
1393 * @scan: Request to do a scan. If returning zero, the scan request is given
1394 * the driver, and will be valid until passed to cfg80211_scan_done().
1395 * For scan results, call cfg80211_inform_bss(); you can call this outside
1396 * the scan/scan_done bracket too.
1398 * @auth: Request to authenticate with the specified peer
1399 * @assoc: Request to (re)associate with the specified peer
1400 * @deauth: Request to deauthenticate from the specified peer
1401 * @disassoc: Request to disassociate from the specified peer
1403 * @connect: Connect to the ESS with the specified parameters. When connected,
1404 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1405 * If the connection fails for some reason, call cfg80211_connect_result()
1406 * with the status from the AP.
1407 * @disconnect: Disconnect from the BSS/ESS.
1409 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1410 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1412 * @leave_ibss: Leave the IBSS.
1414 * @set_wiphy_params: Notify that wiphy parameters have changed;
1415 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1416 * have changed. The actual parameter values are available in
1417 * struct wiphy. If returning an error, no value should be changed.
1419 * @set_tx_power: set the transmit power according to the parameters,
1420 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1421 * @get_tx_power: store the current TX power into the dbm variable;
1422 * return 0 if successful
1424 * @set_wds_peer: set the WDS peer for a WDS interface
1426 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1427 * functions to adjust rfkill hw state
1429 * @dump_survey: get site survey information.
1431 * @remain_on_channel: Request the driver to remain awake on the specified
1432 * channel for the specified duration to complete an off-channel
1433 * operation (e.g., public action frame exchange). When the driver is
1434 * ready on the requested channel, it must indicate this with an event
1435 * notification by calling cfg80211_ready_on_channel().
1436 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1437 * This allows the operation to be terminated prior to timeout based on
1438 * the duration value.
1439 * @mgmt_tx: Transmit a management frame.
1440 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1441 * frame on another channel
1443 * @testmode_cmd: run a test mode command
1444 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1445 * used by the function, but 0 and 1 must not be touched. Additionally,
1446 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1447 * dump and return to userspace with an error, so be careful. If any data
1448 * was passed in from userspace then the data/len arguments will be present
1449 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1451 * @set_bitrate_mask: set the bitrate mask configuration
1453 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1454 * devices running firmwares capable of generating the (re) association
1455 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1456 * @del_pmksa: Delete a cached PMKID.
1457 * @flush_pmksa: Flush all cached PMKIDs.
1458 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1459 * allows the driver to adjust the dynamic ps timeout value.
1460 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1461 * @sched_scan_start: Tell the driver to start a scheduled scan.
1462 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1463 * scan. The driver_initiated flag specifies whether the driver
1464 * itself has informed that the scan has stopped.
1466 * @mgmt_frame_register: Notify driver that a management frame type was
1467 * registered. Note that this callback may not sleep, and cannot run
1468 * concurrently with itself.
1470 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1471 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1472 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1473 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1475 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1477 * @set_ringparam: Set tx and rx ring sizes.
1479 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1481 * @tdls_mgmt: Transmit a TDLS management frame.
1482 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1484 * @probe_client: probe an associated client, must return a cookie that it
1485 * later passes to cfg80211_probe_status().
1487 * @set_noack_map: Set the NoAck Map for the TIDs.
1489 struct cfg80211_ops {
1490 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
1491 int (*resume)(struct wiphy *wiphy);
1493 struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,
1495 enum nl80211_iftype type,
1497 struct vif_params *params);
1498 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
1499 int (*change_virtual_intf)(struct wiphy *wiphy,
1500 struct net_device *dev,
1501 enum nl80211_iftype type, u32 *flags,
1502 struct vif_params *params);
1504 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1505 u8 key_index, bool pairwise, const u8 *mac_addr,
1506 struct key_params *params);
1507 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1508 u8 key_index, bool pairwise, const u8 *mac_addr,
1510 void (*callback)(void *cookie, struct key_params*));
1511 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1512 u8 key_index, bool pairwise, const u8 *mac_addr);
1513 int (*set_default_key)(struct wiphy *wiphy,
1514 struct net_device *netdev,
1515 u8 key_index, bool unicast, bool multicast);
1516 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1517 struct net_device *netdev,
1520 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
1521 struct beacon_parameters *info);
1522 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
1523 struct beacon_parameters *info);
1524 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
1527 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1528 u8 *mac, struct station_parameters *params);
1529 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1531 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1532 u8 *mac, struct station_parameters *params);
1533 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1534 u8 *mac, struct station_info *sinfo);
1535 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1536 int idx, u8 *mac, struct station_info *sinfo);
1538 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1539 u8 *dst, u8 *next_hop);
1540 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1542 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1543 u8 *dst, u8 *next_hop);
1544 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1545 u8 *dst, u8 *next_hop,
1546 struct mpath_info *pinfo);
1547 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1548 int idx, u8 *dst, u8 *next_hop,
1549 struct mpath_info *pinfo);
1550 int (*get_mesh_config)(struct wiphy *wiphy,
1551 struct net_device *dev,
1552 struct mesh_config *conf);
1553 int (*update_mesh_config)(struct wiphy *wiphy,
1554 struct net_device *dev, u32 mask,
1555 const struct mesh_config *nconf);
1556 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
1557 const struct mesh_config *conf,
1558 const struct mesh_setup *setup);
1559 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
1561 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1562 struct bss_parameters *params);
1564 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1565 struct ieee80211_txq_params *params);
1567 int (*set_channel)(struct wiphy *wiphy, struct net_device *dev,
1568 struct ieee80211_channel *chan,
1569 enum nl80211_channel_type channel_type);
1571 int (*scan)(struct wiphy *wiphy, struct net_device *dev,
1572 struct cfg80211_scan_request *request);
1574 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1575 struct cfg80211_auth_request *req);
1576 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1577 struct cfg80211_assoc_request *req);
1578 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1579 struct cfg80211_deauth_request *req,
1581 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1582 struct cfg80211_disassoc_request *req,
1585 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1586 struct cfg80211_connect_params *sme);
1587 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1590 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1591 struct cfg80211_ibss_params *params);
1592 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1594 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1596 int (*set_tx_power)(struct wiphy *wiphy,
1597 enum nl80211_tx_power_setting type, int mbm);
1598 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1600 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1603 void (*rfkill_poll)(struct wiphy *wiphy);
1605 #ifdef CONFIG_NL80211_TESTMODE
1606 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1607 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
1608 struct netlink_callback *cb,
1609 void *data, int len);
1612 int (*set_bitrate_mask)(struct wiphy *wiphy,
1613 struct net_device *dev,
1615 const struct cfg80211_bitrate_mask *mask);
1617 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1618 int idx, struct survey_info *info);
1620 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1621 struct cfg80211_pmksa *pmksa);
1622 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1623 struct cfg80211_pmksa *pmksa);
1624 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
1626 int (*remain_on_channel)(struct wiphy *wiphy,
1627 struct net_device *dev,
1628 struct ieee80211_channel *chan,
1629 enum nl80211_channel_type channel_type,
1630 unsigned int duration,
1632 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
1633 struct net_device *dev,
1636 int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
1637 struct ieee80211_channel *chan, bool offchan,
1638 enum nl80211_channel_type channel_type,
1639 bool channel_type_valid, unsigned int wait,
1640 const u8 *buf, size_t len, bool no_cck,
1641 bool dont_wait_for_ack, u64 *cookie);
1642 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
1643 struct net_device *dev,
1646 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1647 bool enabled, int timeout);
1649 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
1650 struct net_device *dev,
1651 s32 rssi_thold, u32 rssi_hyst);
1653 void (*mgmt_frame_register)(struct wiphy *wiphy,
1654 struct net_device *dev,
1655 u16 frame_type, bool reg);
1657 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
1658 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
1660 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
1661 void (*get_ringparam)(struct wiphy *wiphy,
1662 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1664 int (*sched_scan_start)(struct wiphy *wiphy,
1665 struct net_device *dev,
1666 struct cfg80211_sched_scan_request *request);
1667 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
1669 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
1670 struct cfg80211_gtk_rekey_data *data);
1672 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1673 u8 *peer, u8 action_code, u8 dialog_token,
1674 u16 status_code, const u8 *buf, size_t len);
1675 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
1676 u8 *peer, enum nl80211_tdls_operation oper);
1678 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
1679 const u8 *peer, u64 *cookie);
1681 int (*set_noack_map)(struct wiphy *wiphy,
1682 struct net_device *dev,
1685 struct ieee80211_channel *(*get_channel)(struct wiphy *wiphy);
1689 * wireless hardware and networking interfaces structures
1690 * and registration/helper functions
1694 * enum wiphy_flags - wiphy capability flags
1696 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1697 * has its own custom regulatory domain and cannot identify the
1698 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1699 * we will disregard the first regulatory hint (when the
1700 * initiator is %REGDOM_SET_BY_CORE).
1701 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1702 * ignore regulatory domain settings until it gets its own regulatory
1703 * domain via its regulatory_hint() unless the regulatory hint is
1704 * from a country IE. After its gets its own regulatory domain it will
1705 * only allow further regulatory domain settings to further enhance
1706 * compliance. For example if channel 13 and 14 are disabled by this
1707 * regulatory domain no user regulatory domain can enable these channels
1708 * at a later time. This can be used for devices which do not have
1709 * calibration information guaranteed for frequencies or settings
1710 * outside of its regulatory domain. If used in combination with
1711 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1713 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1714 * that passive scan flags and beaconing flags may not be lifted by
1715 * cfg80211 due to regulatory beacon hints. For more information on beacon
1716 * hints read the documenation for regulatory_hint_found_beacon()
1717 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1719 * @WIPHY_FLAG_ENFORCE_COMBINATIONS: Set this flag to enforce interface
1720 * combinations for this device. This flag is used for backward
1721 * compatibility only until all drivers advertise combinations and
1722 * they will always be enforced.
1723 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1724 * by default -- this flag will be set depending on the kernel's default
1725 * on wiphy_new(), but can be changed by the driver if it has a good
1726 * reason to override the default
1727 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1728 * on a VLAN interface)
1729 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1730 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1731 * control port protocol ethertype. The device also honours the
1732 * control_port_no_encrypt flag.
1733 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1734 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1735 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1736 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1737 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1739 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1740 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1741 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1742 * link setup/discovery operations internally. Setup, discovery and
1743 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1744 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1745 * used for asking the driver/firmware to perform a TDLS operation.
1746 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1747 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1748 * when there are virtual interfaces in AP mode by calling
1749 * cfg80211_report_obss_beacon().
1750 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1751 * responds to probe-requests in hardware.
1752 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1753 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1756 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
1757 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
1758 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
1759 WIPHY_FLAG_NETNS_OK = BIT(3),
1760 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
1761 WIPHY_FLAG_4ADDR_AP = BIT(5),
1762 WIPHY_FLAG_4ADDR_STATION = BIT(6),
1763 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
1764 WIPHY_FLAG_IBSS_RSN = BIT(8),
1765 WIPHY_FLAG_MESH_AUTH = BIT(10),
1766 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
1767 WIPHY_FLAG_ENFORCE_COMBINATIONS = BIT(12),
1768 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
1769 WIPHY_FLAG_AP_UAPSD = BIT(14),
1770 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
1771 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
1772 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
1773 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
1774 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
1775 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
1776 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
1780 * struct ieee80211_iface_limit - limit on certain interface types
1781 * @max: maximum number of interfaces of these types
1782 * @types: interface types (bits)
1784 struct ieee80211_iface_limit {
1790 * struct ieee80211_iface_combination - possible interface combination
1791 * @limits: limits for the given interface types
1792 * @n_limits: number of limitations
1793 * @num_different_channels: can use up to this many different channels
1794 * @max_interfaces: maximum number of interfaces in total allowed in this
1796 * @beacon_int_infra_match: In this combination, the beacon intervals
1797 * between infrastructure and AP types must match. This is required
1798 * only in special cases.
1800 * These examples can be expressed as follows:
1802 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1804 * struct ieee80211_iface_limit limits1[] = {
1805 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1806 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1808 * struct ieee80211_iface_combination combination1 = {
1809 * .limits = limits1,
1810 * .n_limits = ARRAY_SIZE(limits1),
1811 * .max_interfaces = 2,
1812 * .beacon_int_infra_match = true,
1816 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1818 * struct ieee80211_iface_limit limits2[] = {
1819 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1820 * BIT(NL80211_IFTYPE_P2P_GO), },
1822 * struct ieee80211_iface_combination combination2 = {
1823 * .limits = limits2,
1824 * .n_limits = ARRAY_SIZE(limits2),
1825 * .max_interfaces = 8,
1826 * .num_different_channels = 1,
1830 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1831 * This allows for an infrastructure connection and three P2P connections.
1833 * struct ieee80211_iface_limit limits3[] = {
1834 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1835 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1836 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1838 * struct ieee80211_iface_combination combination3 = {
1839 * .limits = limits3,
1840 * .n_limits = ARRAY_SIZE(limits3),
1841 * .max_interfaces = 4,
1842 * .num_different_channels = 2,
1845 struct ieee80211_iface_combination {
1846 const struct ieee80211_iface_limit *limits;
1847 u32 num_different_channels;
1850 bool beacon_int_infra_match;
1853 struct mac_address {
1857 struct ieee80211_txrx_stypes {
1862 * enum wiphy_wowlan_support_flags - WoWLAN support flags
1863 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
1864 * trigger that keeps the device operating as-is and
1865 * wakes up the host on any activity, for example a
1866 * received packet that passed filtering; note that the
1867 * packet should be preserved in that case
1868 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
1870 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
1871 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
1872 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
1873 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
1874 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
1875 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
1877 enum wiphy_wowlan_support_flags {
1878 WIPHY_WOWLAN_ANY = BIT(0),
1879 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
1880 WIPHY_WOWLAN_DISCONNECT = BIT(2),
1881 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
1882 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
1883 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
1884 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
1885 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
1889 * struct wiphy_wowlan_support - WoWLAN support data
1890 * @flags: see &enum wiphy_wowlan_support_flags
1891 * @n_patterns: number of supported wakeup patterns
1892 * (see nl80211.h for the pattern definition)
1893 * @pattern_max_len: maximum length of each pattern
1894 * @pattern_min_len: minimum length of each pattern
1896 struct wiphy_wowlan_support {
1899 int pattern_max_len;
1900 int pattern_min_len;
1904 * struct wiphy - wireless hardware description
1905 * @reg_notifier: the driver's regulatory notification callback,
1906 * note that if your driver uses wiphy_apply_custom_regulatory()
1907 * the reg_notifier's request can be passed as NULL
1908 * @regd: the driver's regulatory domain, if one was requested via
1909 * the regulatory_hint() API. This can be used by the driver
1910 * on the reg_notifier() if it chooses to ignore future
1911 * regulatory domain changes caused by other drivers.
1912 * @signal_type: signal type reported in &struct cfg80211_bss.
1913 * @cipher_suites: supported cipher suites
1914 * @n_cipher_suites: number of supported cipher suites
1915 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1916 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1917 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1918 * -1 = fragmentation disabled, only odd values >= 256 used
1919 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1920 * @_net: the network namespace this wiphy currently lives in
1921 * @perm_addr: permanent MAC address of this device
1922 * @addr_mask: If the device supports multiple MAC addresses by masking,
1923 * set this to a mask with variable bits set to 1, e.g. if the last
1924 * four bits are variable then set it to 00:...:00:0f. The actual
1925 * variable bits shall be determined by the interfaces added, with
1926 * interfaces not matching the mask being rejected to be brought up.
1927 * @n_addresses: number of addresses in @addresses.
1928 * @addresses: If the device has more than one address, set this pointer
1929 * to a list of addresses (6 bytes each). The first one will be used
1930 * by default for perm_addr. In this case, the mask should be set to
1931 * all-zeroes. In this case it is assumed that the device can handle
1932 * the same number of arbitrary MAC addresses.
1933 * @registered: protects ->resume and ->suspend sysfs callbacks against
1934 * unregister hardware
1935 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
1936 * automatically on wiphy renames
1937 * @dev: (virtual) struct device for this wiphy
1938 * @registered: helps synchronize suspend/resume with wiphy unregister
1939 * @wext: wireless extension handlers
1940 * @priv: driver private data (sized according to wiphy_new() parameter)
1941 * @interface_modes: bitmask of interfaces types valid for this wiphy,
1942 * must be set by driver
1943 * @iface_combinations: Valid interface combinations array, should not
1944 * list single interface types.
1945 * @n_iface_combinations: number of entries in @iface_combinations array.
1946 * @software_iftypes: bitmask of software interface types, these are not
1947 * subject to any restrictions since they are purely managed in SW.
1948 * @flags: wiphy flags, see &enum wiphy_flags
1949 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
1950 * @bss_priv_size: each BSS struct has private data allocated with it,
1951 * this variable determines its size
1952 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
1954 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
1955 * for in any given scheduled scan
1956 * @max_match_sets: maximum number of match sets the device can handle
1957 * when performing a scheduled scan, 0 if filtering is not
1959 * @max_scan_ie_len: maximum length of user-controlled IEs device can
1960 * add to probe request frames transmitted during a scan, must not
1961 * include fixed IEs like supported rates
1962 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
1964 * @coverage_class: current coverage class
1965 * @fw_version: firmware version for ethtool reporting
1966 * @hw_version: hardware version for ethtool reporting
1967 * @max_num_pmkids: maximum number of PMKIDs supported by device
1968 * @privid: a pointer that drivers can use to identify if an arbitrary
1969 * wiphy is theirs, e.g. in global notifiers
1970 * @bands: information about bands/channels supported by this device
1972 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
1973 * transmitted through nl80211, points to an array indexed by interface
1976 * @available_antennas_tx: bitmap of antennas which are available to be
1977 * configured as TX antennas. Antenna configuration commands will be
1978 * rejected unless this or @available_antennas_rx is set.
1980 * @available_antennas_rx: bitmap of antennas which are available to be
1981 * configured as RX antennas. Antenna configuration commands will be
1982 * rejected unless this or @available_antennas_tx is set.
1984 * @probe_resp_offload:
1985 * Bitmap of supported protocols for probe response offloading.
1986 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
1987 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
1989 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
1990 * may request, if implemented.
1992 * @wowlan: WoWLAN support information
1994 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
1995 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
1996 * If null, then none can be over-ridden.
1999 /* assign these fields before you register the wiphy */
2001 /* permanent MAC address(es) */
2002 u8 perm_addr[ETH_ALEN];
2003 u8 addr_mask[ETH_ALEN];
2005 struct mac_address *addresses;
2007 const struct ieee80211_txrx_stypes *mgmt_stypes;
2009 const struct ieee80211_iface_combination *iface_combinations;
2010 int n_iface_combinations;
2011 u16 software_iftypes;
2015 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2016 u16 interface_modes;
2018 u32 flags, features;
2022 enum cfg80211_signal_type signal_type;
2026 u8 max_sched_scan_ssids;
2028 u16 max_scan_ie_len;
2029 u16 max_sched_scan_ie_len;
2031 int n_cipher_suites;
2032 const u32 *cipher_suites;
2040 char fw_version[ETHTOOL_BUSINFO_LEN];
2043 struct wiphy_wowlan_support wowlan;
2045 u16 max_remain_on_channel_duration;
2049 u32 available_antennas_tx;
2050 u32 available_antennas_rx;
2053 * Bitmap of supported protocols for probe response offloading
2054 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2055 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2057 u32 probe_resp_offload;
2059 /* If multiple wiphys are registered and you're handed e.g.
2060 * a regular netdev with assigned ieee80211_ptr, you won't
2061 * know whether it points to a wiphy your driver has registered
2062 * or not. Assign this to something global to your driver to
2063 * help determine whether you own this wiphy or not. */
2066 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
2068 /* Lets us get back the wiphy on the callback */
2069 int (*reg_notifier)(struct wiphy *wiphy,
2070 struct regulatory_request *request);
2072 /* fields below are read-only, assigned by cfg80211 */
2074 const struct ieee80211_regdomain *regd;
2076 /* the item in /sys/class/ieee80211/ points to this,
2077 * you need use set_wiphy_dev() (see below) */
2080 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2083 /* dir in debugfs: ieee80211/<wiphyname> */
2084 struct dentry *debugfsdir;
2086 const struct ieee80211_ht_cap *ht_capa_mod_mask;
2088 #ifdef CONFIG_NET_NS
2089 /* the network namespace this phy lives in currently */
2093 #ifdef CONFIG_CFG80211_WEXT
2094 const struct iw_handler_def *wext;
2097 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
2100 static inline struct net *wiphy_net(struct wiphy *wiphy)
2102 return read_pnet(&wiphy->_net);
2105 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
2107 write_pnet(&wiphy->_net, net);
2111 * wiphy_priv - return priv from wiphy
2113 * @wiphy: the wiphy whose priv pointer to return
2115 static inline void *wiphy_priv(struct wiphy *wiphy)
2118 return &wiphy->priv;
2122 * priv_to_wiphy - return the wiphy containing the priv
2124 * @priv: a pointer previously returned by wiphy_priv
2126 static inline struct wiphy *priv_to_wiphy(void *priv)
2129 return container_of(priv, struct wiphy, priv);
2133 * set_wiphy_dev - set device pointer for wiphy
2135 * @wiphy: The wiphy whose device to bind
2136 * @dev: The device to parent it to
2138 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
2140 wiphy->dev.parent = dev;
2144 * wiphy_dev - get wiphy dev pointer
2146 * @wiphy: The wiphy whose device struct to look up
2148 static inline struct device *wiphy_dev(struct wiphy *wiphy)
2150 return wiphy->dev.parent;
2154 * wiphy_name - get wiphy name
2156 * @wiphy: The wiphy whose name to return
2158 static inline const char *wiphy_name(const struct wiphy *wiphy)
2160 return dev_name(&wiphy->dev);
2164 * wiphy_new - create a new wiphy for use with cfg80211
2166 * @ops: The configuration operations for this device
2167 * @sizeof_priv: The size of the private area to allocate
2169 * Create a new wiphy and associate the given operations with it.
2170 * @sizeof_priv bytes are allocated for private use.
2172 * The returned pointer must be assigned to each netdev's
2173 * ieee80211_ptr for proper operation.
2175 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
2178 * wiphy_register - register a wiphy with cfg80211
2180 * @wiphy: The wiphy to register.
2182 * Returns a non-negative wiphy index or a negative error code.
2184 extern int wiphy_register(struct wiphy *wiphy);
2187 * wiphy_unregister - deregister a wiphy from cfg80211
2189 * @wiphy: The wiphy to unregister.
2191 * After this call, no more requests can be made with this priv
2192 * pointer, but the call may sleep to wait for an outstanding
2193 * request that is being handled.
2195 extern void wiphy_unregister(struct wiphy *wiphy);
2198 * wiphy_free - free wiphy
2200 * @wiphy: The wiphy to free
2202 extern void wiphy_free(struct wiphy *wiphy);
2204 /* internal structs */
2205 struct cfg80211_conn;
2206 struct cfg80211_internal_bss;
2207 struct cfg80211_cached_keys;
2209 #define MAX_AUTH_BSSES 4
2212 * struct wireless_dev - wireless per-netdev state
2214 * This structure must be allocated by the driver/stack
2215 * that uses the ieee80211_ptr field in struct net_device
2216 * (this is intentional so it can be allocated along with
2219 * @wiphy: pointer to hardware description
2220 * @iftype: interface type
2221 * @list: (private) Used to collect the interfaces
2222 * @netdev: (private) Used to reference back to the netdev
2223 * @current_bss: (private) Used by the internal configuration code
2224 * @channel: (private) Used by the internal configuration code to track
2225 * user-set AP, monitor and WDS channels for wireless extensions
2226 * @bssid: (private) Used by the internal configuration code
2227 * @ssid: (private) Used by the internal configuration code
2228 * @ssid_len: (private) Used by the internal configuration code
2229 * @mesh_id_len: (private) Used by the internal configuration code
2230 * @mesh_id_up_len: (private) Used by the internal configuration code
2231 * @wext: (private) Used by the internal wireless extensions compat code
2232 * @use_4addr: indicates 4addr mode is used on this interface, must be
2233 * set by driver (if supported) on add_interface BEFORE registering the
2234 * netdev and may otherwise be used by driver read-only, will be update
2235 * by cfg80211 on change_interface
2236 * @mgmt_registrations: list of registrations for management frames
2237 * @mgmt_registrations_lock: lock for the list
2238 * @mtx: mutex used to lock data in this struct
2239 * @cleanup_work: work struct used for cleanup that can't be done directly
2240 * @beacon_interval: beacon interval used on this device for transmitting
2241 * beacons, 0 when not valid
2243 struct wireless_dev {
2244 struct wiphy *wiphy;
2245 enum nl80211_iftype iftype;
2247 /* the remainder of this struct should be private to cfg80211 */
2248 struct list_head list;
2249 struct net_device *netdev;
2251 struct list_head mgmt_registrations;
2252 spinlock_t mgmt_registrations_lock;
2256 struct work_struct cleanup_work;
2260 /* currently used for IBSS and SME - might be rearranged later */
2261 u8 ssid[IEEE80211_MAX_SSID_LEN];
2262 u8 ssid_len, mesh_id_len, mesh_id_up_len;
2265 CFG80211_SME_CONNECTING,
2266 CFG80211_SME_CONNECTED,
2268 struct cfg80211_conn *conn;
2269 struct cfg80211_cached_keys *connect_keys;
2271 struct list_head event_list;
2272 spinlock_t event_lock;
2274 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
2275 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
2276 struct cfg80211_internal_bss *current_bss; /* associated / joined */
2277 struct ieee80211_channel *channel;
2282 int beacon_interval;
2284 u32 ap_unexpected_nlpid;
2286 #ifdef CONFIG_CFG80211_WEXT
2289 struct cfg80211_ibss_params ibss;
2290 struct cfg80211_connect_params connect;
2291 struct cfg80211_cached_keys *keys;
2294 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2295 u8 ssid[IEEE80211_MAX_SSID_LEN];
2296 s8 default_key, default_mgmt_key;
2297 bool prev_bssid_valid;
2303 * wdev_priv - return wiphy priv from wireless_dev
2305 * @wdev: The wireless device whose wiphy's priv pointer to return
2307 static inline void *wdev_priv(struct wireless_dev *wdev)
2310 return wiphy_priv(wdev->wiphy);
2314 * DOC: Utility functions
2316 * cfg80211 offers a number of utility functions that can be useful.
2320 * ieee80211_channel_to_frequency - convert channel number to frequency
2321 * @chan: channel number
2322 * @band: band, necessary due to channel number overlap
2324 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
2327 * ieee80211_frequency_to_channel - convert frequency to channel number
2328 * @freq: center frequency
2330 extern int ieee80211_frequency_to_channel(int freq);
2333 * Name indirection necessary because the ieee80211 code also has
2334 * a function named "ieee80211_get_channel", so if you include
2335 * cfg80211's header file you get cfg80211's version, if you try
2336 * to include both header files you'll (rightfully!) get a symbol
2339 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
2342 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2343 * @wiphy: the struct wiphy to get the channel for
2344 * @freq: the center frequency of the channel
2346 static inline struct ieee80211_channel *
2347 ieee80211_get_channel(struct wiphy *wiphy, int freq)
2349 return __ieee80211_get_channel(wiphy, freq);
2353 * ieee80211_get_response_rate - get basic rate for a given rate
2355 * @sband: the band to look for rates in
2356 * @basic_rates: bitmap of basic rates
2357 * @bitrate: the bitrate for which to find the basic rate
2359 * This function returns the basic rate corresponding to a given
2360 * bitrate, that is the next lower bitrate contained in the basic
2361 * rate map, which is, for this function, given as a bitmap of
2362 * indices of rates in the band's bitrate table.
2364 struct ieee80211_rate *
2365 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
2366 u32 basic_rates, int bitrate);
2369 * Radiotap parsing functions -- for controlled injection support
2371 * Implemented in net/wireless/radiotap.c
2372 * Documentation in Documentation/networking/radiotap-headers.txt
2375 struct radiotap_align_size {
2376 uint8_t align:4, size:4;
2379 struct ieee80211_radiotap_namespace {
2380 const struct radiotap_align_size *align_size;
2386 struct ieee80211_radiotap_vendor_namespaces {
2387 const struct ieee80211_radiotap_namespace *ns;
2392 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2393 * @this_arg_index: index of current arg, valid after each successful call
2394 * to ieee80211_radiotap_iterator_next()
2395 * @this_arg: pointer to current radiotap arg; it is valid after each
2396 * call to ieee80211_radiotap_iterator_next() but also after
2397 * ieee80211_radiotap_iterator_init() where it will point to
2398 * the beginning of the actual data portion
2399 * @this_arg_size: length of the current arg, for convenience
2400 * @current_namespace: pointer to the current namespace definition
2401 * (or internally %NULL if the current namespace is unknown)
2402 * @is_radiotap_ns: indicates whether the current namespace is the default
2403 * radiotap namespace or not
2405 * @_rtheader: pointer to the radiotap header we are walking through
2406 * @_max_length: length of radiotap header in cpu byte ordering
2407 * @_arg_index: next argument index
2408 * @_arg: next argument pointer
2409 * @_next_bitmap: internal pointer to next present u32
2410 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2411 * @_vns: vendor namespace definitions
2412 * @_next_ns_data: beginning of the next namespace's data
2413 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2416 * Describes the radiotap parser state. Fields prefixed with an underscore
2417 * must not be used by users of the parser, only by the parser internally.
2420 struct ieee80211_radiotap_iterator {
2421 struct ieee80211_radiotap_header *_rtheader;
2422 const struct ieee80211_radiotap_vendor_namespaces *_vns;
2423 const struct ieee80211_radiotap_namespace *current_namespace;
2425 unsigned char *_arg, *_next_ns_data;
2426 __le32 *_next_bitmap;
2428 unsigned char *this_arg;
2436 uint32_t _bitmap_shifter;
2440 extern int ieee80211_radiotap_iterator_init(
2441 struct ieee80211_radiotap_iterator *iterator,
2442 struct ieee80211_radiotap_header *radiotap_header,
2443 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
2445 extern int ieee80211_radiotap_iterator_next(
2446 struct ieee80211_radiotap_iterator *iterator);
2449 extern const unsigned char rfc1042_header[6];
2450 extern const unsigned char bridge_tunnel_header[6];
2453 * ieee80211_get_hdrlen_from_skb - get header length from data
2455 * Given an skb with a raw 802.11 header at the data pointer this function
2456 * returns the 802.11 header length in bytes (not including encryption
2457 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2458 * header the function returns 0.
2462 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
2465 * ieee80211_hdrlen - get header length in bytes from frame control
2466 * @fc: frame control field in little-endian format
2468 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2471 * DOC: Data path helpers
2473 * In addition to generic utilities, cfg80211 also offers
2474 * functions that help implement the data path for devices
2475 * that do not do the 802.11/802.3 conversion on the device.
2479 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2480 * @skb: the 802.11 data frame
2481 * @addr: the device MAC address
2482 * @iftype: the virtual interface type
2484 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2485 enum nl80211_iftype iftype);
2488 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2489 * @skb: the 802.3 frame
2490 * @addr: the device MAC address
2491 * @iftype: the virtual interface type
2492 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2493 * @qos: build 802.11 QoS data frame
2495 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2496 enum nl80211_iftype iftype, u8 *bssid, bool qos);
2499 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2501 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2502 * 802.3 frames. The @list will be empty if the decode fails. The
2503 * @skb is consumed after the function returns.
2505 * @skb: The input IEEE 802.11n A-MSDU frame.
2506 * @list: The output list of 802.3 frames. It must be allocated and
2507 * initialized by by the caller.
2508 * @addr: The device MAC address.
2509 * @iftype: The device interface type.
2510 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2511 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2513 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
2514 const u8 *addr, enum nl80211_iftype iftype,
2515 const unsigned int extra_headroom,
2516 bool has_80211_header);
2519 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2520 * @skb: the data frame
2522 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
2525 * cfg80211_find_ie - find information element in data
2528 * @ies: data consisting of IEs
2529 * @len: length of data
2531 * This function will return %NULL if the element ID could
2532 * not be found or if the element is invalid (claims to be
2533 * longer than the given data), or a pointer to the first byte
2534 * of the requested element, that is the byte containing the
2535 * element ID. There are no checks on the element length
2536 * other than having to fit into the given data.
2538 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
2541 * cfg80211_find_vendor_ie - find vendor specific information element in data
2544 * @oui_type: vendor-specific OUI type
2545 * @ies: data consisting of IEs
2546 * @len: length of data
2548 * This function will return %NULL if the vendor specific element ID
2549 * could not be found or if the element is invalid (claims to be
2550 * longer than the given data), or a pointer to the first byte
2551 * of the requested element, that is the byte containing the
2552 * element ID. There are no checks on the element length
2553 * other than having to fit into the given data.
2555 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
2556 const u8 *ies, int len);
2559 * DOC: Regulatory enforcement infrastructure
2565 * regulatory_hint - driver hint to the wireless core a regulatory domain
2566 * @wiphy: the wireless device giving the hint (used only for reporting
2568 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2569 * should be in. If @rd is set this should be NULL. Note that if you
2570 * set this to NULL you should still set rd->alpha2 to some accepted
2573 * Wireless drivers can use this function to hint to the wireless core
2574 * what it believes should be the current regulatory domain by
2575 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2576 * domain should be in or by providing a completely build regulatory domain.
2577 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2578 * for a regulatory domain structure for the respective country.
2580 * The wiphy must have been registered to cfg80211 prior to this call.
2581 * For cfg80211 drivers this means you must first use wiphy_register(),
2582 * for mac80211 drivers you must first use ieee80211_register_hw().
2584 * Drivers should check the return value, its possible you can get
2587 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
2590 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2591 * @wiphy: the wireless device we want to process the regulatory domain on
2592 * @regd: the custom regulatory domain to use for this wiphy
2594 * Drivers can sometimes have custom regulatory domains which do not apply
2595 * to a specific country. Drivers can use this to apply such custom regulatory
2596 * domains. This routine must be called prior to wiphy registration. The
2597 * custom regulatory domain will be trusted completely and as such previous
2598 * default channel settings will be disregarded. If no rule is found for a
2599 * channel on the regulatory domain the channel will be disabled.
2601 extern void wiphy_apply_custom_regulatory(
2602 struct wiphy *wiphy,
2603 const struct ieee80211_regdomain *regd);
2606 * freq_reg_info - get regulatory information for the given frequency
2607 * @wiphy: the wiphy for which we want to process this rule for
2608 * @center_freq: Frequency in KHz for which we want regulatory information for
2609 * @desired_bw_khz: the desired max bandwidth you want to use per
2610 * channel. Note that this is still 20 MHz if you want to use HT40
2611 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2612 * If set to 0 we'll assume you want the standard 20 MHz.
2613 * @reg_rule: the regulatory rule which we have for this frequency
2615 * Use this function to get the regulatory rule for a specific frequency on
2616 * a given wireless device. If the device has a specific regulatory domain
2617 * it wants to follow we respect that unless a country IE has been received
2618 * and processed already.
2620 * Returns 0 if it was able to find a valid regulatory rule which does
2621 * apply to the given center_freq otherwise it returns non-zero. It will
2622 * also return -ERANGE if we determine the given center_freq does not even have
2623 * a regulatory rule for a frequency range in the center_freq's band. See
2624 * freq_in_rule_band() for our current definition of a band -- this is purely
2625 * subjective and right now its 802.11 specific.
2627 extern int freq_reg_info(struct wiphy *wiphy,
2630 const struct ieee80211_reg_rule **reg_rule);
2633 * callbacks for asynchronous cfg80211 methods, notification
2634 * functions and BSS handling helpers
2638 * cfg80211_scan_done - notify that scan finished
2640 * @request: the corresponding scan request
2641 * @aborted: set to true if the scan was aborted for any reason,
2642 * userspace will be notified of that
2644 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
2647 * cfg80211_sched_scan_results - notify that new scan results are available
2649 * @wiphy: the wiphy which got scheduled scan results
2651 void cfg80211_sched_scan_results(struct wiphy *wiphy);
2654 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2656 * @wiphy: the wiphy on which the scheduled scan stopped
2658 * The driver can call this function to inform cfg80211 that the
2659 * scheduled scan had to be stopped, for whatever reason. The driver
2660 * is then called back via the sched_scan_stop operation when done.
2662 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
2665 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2667 * @wiphy: the wiphy reporting the BSS
2668 * @channel: The channel the frame was received on
2669 * @mgmt: the management frame (probe response or beacon)
2670 * @len: length of the management frame
2671 * @signal: the signal strength, type depends on the wiphy's signal_type
2672 * @gfp: context flags
2674 * This informs cfg80211 that BSS information was found and
2675 * the BSS should be updated/added.
2677 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2679 struct cfg80211_bss * __must_check
2680 cfg80211_inform_bss_frame(struct wiphy *wiphy,
2681 struct ieee80211_channel *channel,
2682 struct ieee80211_mgmt *mgmt, size_t len,
2683 s32 signal, gfp_t gfp);
2686 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2688 * @wiphy: the wiphy reporting the BSS
2689 * @channel: The channel the frame was received on
2690 * @bssid: the BSSID of the BSS
2691 * @timestamp: the TSF timestamp sent by the peer
2692 * @capability: the capability field sent by the peer
2693 * @beacon_interval: the beacon interval announced by the peer
2694 * @ie: additional IEs sent by the peer
2695 * @ielen: length of the additional IEs
2696 * @signal: the signal strength, type depends on the wiphy's signal_type
2697 * @gfp: context flags
2699 * This informs cfg80211 that BSS information was found and
2700 * the BSS should be updated/added.
2702 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2704 struct cfg80211_bss * __must_check
2705 cfg80211_inform_bss(struct wiphy *wiphy,
2706 struct ieee80211_channel *channel,
2708 u64 timestamp, u16 capability, u16 beacon_interval,
2709 const u8 *ie, size_t ielen,
2710 s32 signal, gfp_t gfp);
2712 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
2713 struct ieee80211_channel *channel,
2715 const u8 *ssid, size_t ssid_len,
2716 u16 capa_mask, u16 capa_val);
2717 static inline struct cfg80211_bss *
2718 cfg80211_get_ibss(struct wiphy *wiphy,
2719 struct ieee80211_channel *channel,
2720 const u8 *ssid, size_t ssid_len)
2722 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
2723 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
2726 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
2727 struct ieee80211_channel *channel,
2728 const u8 *meshid, size_t meshidlen,
2730 void cfg80211_put_bss(struct cfg80211_bss *bss);
2733 * cfg80211_unlink_bss - unlink BSS from internal data structures
2735 * @bss: the bss to remove
2737 * This function removes the given BSS from the internal data structures
2738 * thereby making it no longer show up in scan results etc. Use this
2739 * function when you detect a BSS is gone. Normally BSSes will also time
2740 * out, so it is not necessary to use this function at all.
2742 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
2745 * cfg80211_send_rx_auth - notification of processed authentication
2746 * @dev: network device
2747 * @buf: authentication frame (header + body)
2748 * @len: length of the frame data
2750 * This function is called whenever an authentication has been processed in
2751 * station mode. The driver is required to call either this function or
2752 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2753 * call. This function may sleep.
2755 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2758 * cfg80211_send_auth_timeout - notification of timed out authentication
2759 * @dev: network device
2760 * @addr: The MAC address of the device with which the authentication timed out
2762 * This function may sleep.
2764 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2767 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
2768 * @dev: network device
2769 * @addr: The MAC address of the device with which the authentication timed out
2771 * When a pending authentication had no action yet, the driver may decide
2772 * to not send a deauth frame, but in that case must calls this function
2773 * to tell cfg80211 about this decision. It is only valid to call this
2774 * function within the deauth() callback.
2776 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);
2779 * cfg80211_send_rx_assoc - notification of processed association
2780 * @dev: network device
2781 * @buf: (re)association response frame (header + body)
2782 * @len: length of the frame data
2784 * This function is called whenever a (re)association response has been
2785 * processed in station mode. The driver is required to call either this
2786 * function or cfg80211_send_assoc_timeout() to indicate the result of
2787 * cfg80211_ops::assoc() call. This function may sleep.
2789 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
2792 * cfg80211_send_assoc_timeout - notification of timed out association
2793 * @dev: network device
2794 * @addr: The MAC address of the device with which the association timed out
2796 * This function may sleep.
2798 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2801 * cfg80211_send_deauth - notification of processed deauthentication
2802 * @dev: network device
2803 * @buf: deauthentication frame (header + body)
2804 * @len: length of the frame data
2806 * This function is called whenever deauthentication has been processed in
2807 * station mode. This includes both received deauthentication frames and
2808 * locally generated ones. This function may sleep.
2810 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2813 * __cfg80211_send_deauth - notification of processed deauthentication
2814 * @dev: network device
2815 * @buf: deauthentication frame (header + body)
2816 * @len: length of the frame data
2818 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2820 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2823 * cfg80211_send_disassoc - notification of processed disassociation
2824 * @dev: network device
2825 * @buf: disassociation response frame (header + body)
2826 * @len: length of the frame data
2828 * This function is called whenever disassociation has been processed in
2829 * station mode. This includes both received disassociation frames and locally
2830 * generated ones. This function may sleep.
2832 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
2835 * __cfg80211_send_disassoc - notification of processed disassociation
2836 * @dev: network device
2837 * @buf: disassociation response frame (header + body)
2838 * @len: length of the frame data
2840 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2842 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
2846 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
2847 * @dev: network device
2848 * @buf: deauthentication frame (header + body)
2849 * @len: length of the frame data
2851 * This function is called whenever a received Deauthentication frame has been
2852 * dropped in station mode because of MFP being used but the Deauthentication
2853 * frame was not protected. This function may sleep.
2855 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
2859 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
2860 * @dev: network device
2861 * @buf: disassociation frame (header + body)
2862 * @len: length of the frame data
2864 * This function is called whenever a received Disassociation frame has been
2865 * dropped in station mode because of MFP being used but the Disassociation
2866 * frame was not protected. This function may sleep.
2868 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
2872 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2873 * @dev: network device
2874 * @addr: The source MAC address of the frame
2875 * @key_type: The key type that the received frame used
2876 * @key_id: Key identifier (0..3). Can be -1 if missing.
2877 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2878 * @gfp: allocation flags
2880 * This function is called whenever the local MAC detects a MIC failure in a
2881 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
2884 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
2885 enum nl80211_key_type key_type, int key_id,
2886 const u8 *tsc, gfp_t gfp);
2889 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
2891 * @dev: network device
2892 * @bssid: the BSSID of the IBSS joined
2893 * @gfp: allocation flags
2895 * This function notifies cfg80211 that the device joined an IBSS or
2896 * switched to a different BSSID. Before this function can be called,
2897 * either a beacon has to have been received from the IBSS, or one of
2898 * the cfg80211_inform_bss{,_frame} functions must have been called
2899 * with the locally generated beacon -- this guarantees that there is
2900 * always a scan result for this IBSS. cfg80211 will handle the rest.
2902 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
2905 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
2907 * @dev: network device
2908 * @macaddr: the MAC address of the new candidate
2909 * @ie: information elements advertised by the peer candidate
2910 * @ie_len: lenght of the information elements buffer
2911 * @gfp: allocation flags
2913 * This function notifies cfg80211 that the mesh peer candidate has been
2914 * detected, most likely via a beacon or, less likely, via a probe response.
2915 * cfg80211 then sends a notification to userspace.
2917 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
2918 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
2921 * DOC: RFkill integration
2923 * RFkill integration in cfg80211 is almost invisible to drivers,
2924 * as cfg80211 automatically registers an rfkill instance for each
2925 * wireless device it knows about. Soft kill is also translated
2926 * into disconnecting and turning all interfaces off, drivers are
2927 * expected to turn off the device when all interfaces are down.
2929 * However, devices may have a hard RFkill line, in which case they
2930 * also need to interact with the rfkill subsystem, via cfg80211.
2931 * They can do this with a few helper functions documented here.
2935 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
2937 * @blocked: block status
2939 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
2942 * wiphy_rfkill_start_polling - start polling rfkill
2945 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
2948 * wiphy_rfkill_stop_polling - stop polling rfkill
2951 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
2953 #ifdef CONFIG_NL80211_TESTMODE
2957 * Test mode is a set of utility functions to allow drivers to
2958 * interact with driver-specific tools to aid, for instance,
2959 * factory programming.
2961 * This chapter describes how drivers interact with it, for more
2962 * information see the nl80211 book's chapter on it.
2966 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
2968 * @approxlen: an upper bound of the length of the data that will
2969 * be put into the skb
2971 * This function allocates and pre-fills an skb for a reply to
2972 * the testmode command. Since it is intended for a reply, calling
2973 * it outside of the @testmode_cmd operation is invalid.
2975 * The returned skb (or %NULL if any errors happen) is pre-filled
2976 * with the wiphy index and set up in a way that any data that is
2977 * put into the skb (with skb_put(), nla_put() or similar) will end
2978 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
2979 * needs to be done with the skb is adding data for the corresponding
2980 * userspace tool which can then read that data out of the testdata
2981 * attribute. You must not modify the skb in any other way.
2983 * When done, call cfg80211_testmode_reply() with the skb and return
2984 * its error code as the result of the @testmode_cmd operation.
2986 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
2990 * cfg80211_testmode_reply - send the reply skb
2991 * @skb: The skb, must have been allocated with
2992 * cfg80211_testmode_alloc_reply_skb()
2994 * Returns an error code or 0 on success, since calling this
2995 * function will usually be the last thing before returning
2996 * from the @testmode_cmd you should return the error code.
2997 * Note that this function consumes the skb regardless of the
3000 int cfg80211_testmode_reply(struct sk_buff *skb);
3003 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3005 * @approxlen: an upper bound of the length of the data that will
3006 * be put into the skb
3007 * @gfp: allocation flags
3009 * This function allocates and pre-fills an skb for an event on the
3010 * testmode multicast group.
3012 * The returned skb (or %NULL if any errors happen) is set up in the
3013 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3014 * for an event. As there, you should simply add data to it that will
3015 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3016 * not modify the skb in any other way.
3018 * When done filling the skb, call cfg80211_testmode_event() with the
3019 * skb to send the event.
3021 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3022 int approxlen, gfp_t gfp);
3025 * cfg80211_testmode_event - send the event
3026 * @skb: The skb, must have been allocated with
3027 * cfg80211_testmode_alloc_event_skb()
3028 * @gfp: allocation flags
3030 * This function sends the given @skb, which must have been allocated
3031 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3034 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
3036 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3037 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3039 #define CFG80211_TESTMODE_CMD(cmd)
3040 #define CFG80211_TESTMODE_DUMP(cmd)
3044 * cfg80211_connect_result - notify cfg80211 of connection result
3046 * @dev: network device
3047 * @bssid: the BSSID of the AP
3048 * @req_ie: association request IEs (maybe be %NULL)
3049 * @req_ie_len: association request IEs length
3050 * @resp_ie: association response IEs (may be %NULL)
3051 * @resp_ie_len: assoc response IEs length
3052 * @status: status code, 0 for successful connection, use
3053 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3054 * the real status code for failures.
3055 * @gfp: allocation flags
3057 * It should be called by the underlying driver whenever connect() has
3060 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
3061 const u8 *req_ie, size_t req_ie_len,
3062 const u8 *resp_ie, size_t resp_ie_len,
3063 u16 status, gfp_t gfp);
3066 * cfg80211_roamed - notify cfg80211 of roaming
3068 * @dev: network device
3069 * @channel: the channel of the new AP
3070 * @bssid: the BSSID of the new AP
3071 * @req_ie: association request IEs (maybe be %NULL)
3072 * @req_ie_len: association request IEs length
3073 * @resp_ie: association response IEs (may be %NULL)
3074 * @resp_ie_len: assoc response IEs length
3075 * @gfp: allocation flags
3077 * It should be called by the underlying driver whenever it roamed
3078 * from one AP to another while connected.
3080 void cfg80211_roamed(struct net_device *dev,
3081 struct ieee80211_channel *channel,
3083 const u8 *req_ie, size_t req_ie_len,
3084 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3087 * cfg80211_roamed_bss - notify cfg80211 of roaming
3089 * @dev: network device
3090 * @bss: entry of bss to which STA got roamed
3091 * @req_ie: association request IEs (maybe be %NULL)
3092 * @req_ie_len: association request IEs length
3093 * @resp_ie: association response IEs (may be %NULL)
3094 * @resp_ie_len: assoc response IEs length
3095 * @gfp: allocation flags
3097 * This is just a wrapper to notify cfg80211 of roaming event with driver
3098 * passing bss to avoid a race in timeout of the bss entry. It should be
3099 * called by the underlying driver whenever it roamed from one AP to another
3100 * while connected. Drivers which have roaming implemented in firmware
3101 * may use this function to avoid a race in bss entry timeout where the bss
3102 * entry of the new AP is seen in the driver, but gets timed out by the time
3103 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3104 * rdev->event_work. In case of any failures, the reference is released
3105 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3106 * it will be released while diconneting from the current bss.
3108 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
3109 const u8 *req_ie, size_t req_ie_len,
3110 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3113 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3115 * @dev: network device
3116 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3117 * @ie_len: length of IEs
3118 * @reason: reason code for the disconnection, set it to 0 if unknown
3119 * @gfp: allocation flags
3121 * After it calls this function, the driver should enter an idle state
3122 * and not try to connect to any AP any more.
3124 void cfg80211_disconnected(struct net_device *dev, u16 reason,
3125 u8 *ie, size_t ie_len, gfp_t gfp);
3128 * cfg80211_ready_on_channel - notification of remain_on_channel start
3129 * @dev: network device
3130 * @cookie: the request cookie
3131 * @chan: The current channel (from remain_on_channel request)
3132 * @channel_type: Channel type
3133 * @duration: Duration in milliseconds that the driver intents to remain on the
3135 * @gfp: allocation flags
3137 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
3138 struct ieee80211_channel *chan,
3139 enum nl80211_channel_type channel_type,
3140 unsigned int duration, gfp_t gfp);
3143 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3144 * @dev: network device
3145 * @cookie: the request cookie
3146 * @chan: The current channel (from remain_on_channel request)
3147 * @channel_type: Channel type
3148 * @gfp: allocation flags
3150 void cfg80211_remain_on_channel_expired(struct net_device *dev,
3152 struct ieee80211_channel *chan,
3153 enum nl80211_channel_type channel_type,
3158 * cfg80211_new_sta - notify userspace about station
3161 * @mac_addr: the station's address
3162 * @sinfo: the station information
3163 * @gfp: allocation flags
3165 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
3166 struct station_info *sinfo, gfp_t gfp);
3169 * cfg80211_del_sta - notify userspace about deletion of a station
3172 * @mac_addr: the station's address
3173 * @gfp: allocation flags
3175 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
3178 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3179 * @dev: network device
3180 * @freq: Frequency on which the frame was received in MHz
3181 * @buf: Management frame (header + body)
3182 * @len: length of the frame data
3183 * @gfp: context flags
3185 * Returns %true if a user space application has registered for this frame.
3186 * For action frames, that makes it responsible for rejecting unrecognized
3187 * action frames; %false otherwise, in which case for action frames the
3188 * driver is responsible for rejecting the frame.
3190 * This function is called whenever an Action frame is received for a station
3191 * mode interface, but is not processed in kernel.
3193 bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf,
3194 size_t len, gfp_t gfp);
3197 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3198 * @dev: network device
3199 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3200 * @buf: Management frame (header + body)
3201 * @len: length of the frame data
3202 * @ack: Whether frame was acknowledged
3203 * @gfp: context flags
3205 * This function is called whenever a management frame was requested to be
3206 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3207 * transmission attempt.
3209 void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie,
3210 const u8 *buf, size_t len, bool ack, gfp_t gfp);
3214 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3215 * @dev: network device
3216 * @rssi_event: the triggered RSSI event
3217 * @gfp: context flags
3219 * This function is called when a configured connection quality monitoring
3220 * rssi threshold reached event occurs.
3222 void cfg80211_cqm_rssi_notify(struct net_device *dev,
3223 enum nl80211_cqm_rssi_threshold_event rssi_event,
3227 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3228 * @dev: network device
3229 * @peer: peer's MAC address
3230 * @num_packets: how many packets were lost -- should be a fixed threshold
3231 * but probably no less than maybe 50, or maybe a throughput dependent
3232 * threshold (to account for temporary interference)
3233 * @gfp: context flags
3235 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
3236 const u8 *peer, u32 num_packets, gfp_t gfp);
3239 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3240 * @dev: network device
3241 * @bssid: BSSID of AP (to avoid races)
3242 * @replay_ctr: new replay counter
3243 * @gfp: allocation flags
3245 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
3246 const u8 *replay_ctr, gfp_t gfp);
3249 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3250 * @dev: network device
3251 * @index: candidate index (the smaller the index, the higher the priority)
3252 * @bssid: BSSID of AP
3253 * @preauth: Whether AP advertises support for RSN pre-authentication
3254 * @gfp: allocation flags
3256 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
3257 const u8 *bssid, bool preauth, gfp_t gfp);
3260 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3261 * @dev: The device the frame matched to
3262 * @addr: the transmitter address
3263 * @gfp: context flags
3265 * This function is used in AP mode (only!) to inform userspace that
3266 * a spurious class 3 frame was received, to be able to deauth the
3268 * Returns %true if the frame was passed to userspace (or this failed
3269 * for a reason other than not having a subscription.)
3271 bool cfg80211_rx_spurious_frame(struct net_device *dev,
3272 const u8 *addr, gfp_t gfp);
3275 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3276 * @dev: The device the frame matched to
3277 * @addr: the transmitter address
3278 * @gfp: context flags
3280 * This function is used in AP mode (only!) to inform userspace that
3281 * an associated station sent a 4addr frame but that wasn't expected.
3282 * It is allowed and desirable to send this event only once for each
3283 * station to avoid event flooding.
3284 * Returns %true if the frame was passed to userspace (or this failed
3285 * for a reason other than not having a subscription.)
3287 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
3288 const u8 *addr, gfp_t gfp);
3291 * cfg80211_probe_status - notify userspace about probe status
3292 * @dev: the device the probe was sent on
3293 * @addr: the address of the peer
3294 * @cookie: the cookie filled in @probe_client previously
3295 * @acked: indicates whether probe was acked or not
3296 * @gfp: allocation flags
3298 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
3299 u64 cookie, bool acked, gfp_t gfp);
3302 * cfg80211_report_obss_beacon - report beacon from other APs
3303 * @wiphy: The wiphy that received the beacon
3305 * @len: length of the frame
3306 * @freq: frequency the frame was received on
3307 * @gfp: allocation flags
3309 * Use this function to report to userspace when a beacon was
3310 * received. It is not useful to call this when there is no
3311 * netdev that is in AP/GO mode.
3313 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
3314 const u8 *frame, size_t len,
3315 int freq, gfp_t gfp);
3318 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3320 * @chan: main channel
3321 * @channel_type: HT mode
3323 int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
3324 struct ieee80211_channel *chan,
3325 enum nl80211_channel_type channel_type);
3327 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3329 /* wiphy_printk helpers, similar to dev_printk */
3331 #define wiphy_printk(level, wiphy, format, args...) \
3332 dev_printk(level, &(wiphy)->dev, format, ##args)
3333 #define wiphy_emerg(wiphy, format, args...) \
3334 dev_emerg(&(wiphy)->dev, format, ##args)
3335 #define wiphy_alert(wiphy, format, args...) \
3336 dev_alert(&(wiphy)->dev, format, ##args)
3337 #define wiphy_crit(wiphy, format, args...) \
3338 dev_crit(&(wiphy)->dev, format, ##args)
3339 #define wiphy_err(wiphy, format, args...) \
3340 dev_err(&(wiphy)->dev, format, ##args)
3341 #define wiphy_warn(wiphy, format, args...) \
3342 dev_warn(&(wiphy)->dev, format, ##args)
3343 #define wiphy_notice(wiphy, format, args...) \
3344 dev_notice(&(wiphy)->dev, format, ##args)
3345 #define wiphy_info(wiphy, format, args...) \
3346 dev_info(&(wiphy)->dev, format, ##args)
3348 #define wiphy_debug(wiphy, format, args...) \
3349 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3351 #define wiphy_dbg(wiphy, format, args...) \
3352 dev_dbg(&(wiphy)->dev, format, ##args)
3354 #if defined(VERBOSE_DEBUG)
3355 #define wiphy_vdbg wiphy_dbg
3357 #define wiphy_vdbg(wiphy, format, args...) \
3360 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3366 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3367 * of using a WARN/WARN_ON to get the message out, including the
3368 * file/line information and a backtrace.
3370 #define wiphy_WARN(wiphy, format, args...) \
3371 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3373 #endif /* __NET_CFG80211_H */