1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/bug.h>
17 #include <linux/netlink.h>
18 #include <linux/skbuff.h>
19 #include <linux/nl80211.h>
20 #include <linux/if_ether.h>
21 #include <linux/ieee80211.h>
22 #include <net/regulatory.h>
27 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
28 * userspace and drivers, and offers some utility functionality associated
29 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
30 * by all modern wireless drivers in Linux, so that they offer a consistent
31 * API through nl80211. For backward compatibility, cfg80211 also offers
32 * wireless extensions to userspace, but hides them from drivers completely.
34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
40 * DOC: Device registration
42 * In order for a driver to use cfg80211, it must register the hardware device
43 * with cfg80211. This happens through a number of hardware capability structs
46 * The fundamental structure for each device is the 'wiphy', of which each
47 * instance describes a physical wireless device connected to the system. Each
48 * such wiphy can have zero, one, or many virtual interfaces associated with
49 * it, which need to be identified as such by pointing the network interface's
50 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
51 * the wireless part of the interface, normally this struct is embedded in the
52 * network interface's private data area. Drivers can optionally allow creating
53 * or destroying virtual interfaces on the fly, but without at least one or the
54 * ability to create some the wireless device isn't useful.
56 * Each wiphy structure contains device capability information, and also has
57 * a pointer to the various operations the driver offers. The definitions and
58 * structures here describe these capabilities in detail.
62 * wireless hardware capability structures
66 * enum ieee80211_band - supported frequency bands
68 * The bands are assigned this way because the supported
69 * bitrates differ in these bands.
71 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
72 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
73 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
74 * @IEEE80211_NUM_BANDS: number of defined bands
77 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
78 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
79 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
86 * enum ieee80211_channel_flags - channel flags
88 * Channel flags set by the regulatory control code.
90 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
91 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
93 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
94 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
95 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
97 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
100 enum ieee80211_channel_flags {
101 IEEE80211_CHAN_DISABLED = 1<<0,
102 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
103 IEEE80211_CHAN_NO_IBSS = 1<<2,
104 IEEE80211_CHAN_RADAR = 1<<3,
105 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
106 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
109 #define IEEE80211_CHAN_NO_HT40 \
110 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
113 * struct ieee80211_channel - channel definition
115 * This structure describes a single channel for use
118 * @center_freq: center frequency in MHz
119 * @hw_value: hardware-specific value for the channel
120 * @flags: channel flags from &enum ieee80211_channel_flags.
121 * @orig_flags: channel flags at registration time, used by regulatory
122 * code to support devices with additional restrictions
123 * @band: band this channel belongs to.
124 * @max_antenna_gain: maximum antenna gain in dBi
125 * @max_power: maximum transmission power (in dBm)
126 * @max_reg_power: maximum regulatory transmission power (in dBm)
127 * @beacon_found: helper to regulatory code to indicate when a beacon
128 * has been found on this channel. Use regulatory_hint_found_beacon()
129 * to enable this, this is useful only on 5 GHz band.
130 * @orig_mag: internal use
131 * @orig_mpwr: internal use
133 struct ieee80211_channel {
134 enum ieee80211_band band;
138 int max_antenna_gain;
143 int orig_mag, orig_mpwr;
147 * enum ieee80211_rate_flags - rate flags
149 * Hardware/specification flags for rates. These are structured
150 * in a way that allows using the same bitrate structure for
151 * different bands/PHY modes.
153 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
154 * preamble on this bitrate; only relevant in 2.4GHz band and
156 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
157 * when used with 802.11a (on the 5 GHz band); filled by the
158 * core code when registering the wiphy.
159 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
160 * when used with 802.11b (on the 2.4 GHz band); filled by the
161 * core code when registering the wiphy.
162 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
163 * when used with 802.11g (on the 2.4 GHz band); filled by the
164 * core code when registering the wiphy.
165 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
167 enum ieee80211_rate_flags {
168 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
169 IEEE80211_RATE_MANDATORY_A = 1<<1,
170 IEEE80211_RATE_MANDATORY_B = 1<<2,
171 IEEE80211_RATE_MANDATORY_G = 1<<3,
172 IEEE80211_RATE_ERP_G = 1<<4,
176 * struct ieee80211_rate - bitrate definition
178 * This structure describes a bitrate that an 802.11 PHY can
179 * operate with. The two values @hw_value and @hw_value_short
180 * are only for driver use when pointers to this structure are
183 * @flags: rate-specific flags
184 * @bitrate: bitrate in units of 100 Kbps
185 * @hw_value: driver/hardware value for this rate
186 * @hw_value_short: driver/hardware value for this rate when
187 * short preamble is used
189 struct ieee80211_rate {
192 u16 hw_value, hw_value_short;
196 * struct ieee80211_sta_ht_cap - STA's HT capabilities
198 * This structure describes most essential parameters needed
199 * to describe 802.11n HT capabilities for an STA.
201 * @ht_supported: is HT supported by the STA
202 * @cap: HT capabilities map as described in 802.11n spec
203 * @ampdu_factor: Maximum A-MPDU length factor
204 * @ampdu_density: Minimum A-MPDU spacing
205 * @mcs: Supported MCS rates
207 struct ieee80211_sta_ht_cap {
208 u16 cap; /* use IEEE80211_HT_CAP_ */
212 struct ieee80211_mcs_info mcs;
216 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
218 * This structure describes most essential parameters needed
219 * to describe 802.11ac VHT capabilities for an STA.
221 * @vht_supported: is VHT supported by the STA
222 * @cap: VHT capabilities map as described in 802.11ac spec
223 * @vht_mcs: Supported VHT MCS rates
225 struct ieee80211_sta_vht_cap {
227 u32 cap; /* use IEEE80211_VHT_CAP_ */
228 struct ieee80211_vht_mcs_info vht_mcs;
232 * struct ieee80211_supported_band - frequency band definition
234 * This structure describes a frequency band a wiphy
235 * is able to operate in.
237 * @channels: Array of channels the hardware can operate in
239 * @band: the band this structure represents
240 * @n_channels: Number of channels in @channels
241 * @bitrates: Array of bitrates the hardware can operate with
242 * in this band. Must be sorted to give a valid "supported
243 * rates" IE, i.e. CCK rates first, then OFDM.
244 * @n_bitrates: Number of bitrates in @bitrates
245 * @ht_cap: HT capabilities in this band
247 struct ieee80211_supported_band {
248 struct ieee80211_channel *channels;
249 struct ieee80211_rate *bitrates;
250 enum ieee80211_band band;
253 struct ieee80211_sta_ht_cap ht_cap;
254 struct ieee80211_sta_vht_cap vht_cap;
258 * Wireless hardware/device configuration structures and methods
262 * DOC: Actions and configuration
264 * Each wireless device and each virtual interface offer a set of configuration
265 * operations and other actions that are invoked by userspace. Each of these
266 * actions is described in the operations structure, and the parameters these
267 * operations use are described separately.
269 * Additionally, some operations are asynchronous and expect to get status
270 * information via some functions that drivers need to call.
272 * Scanning and BSS list handling with its associated functionality is described
273 * in a separate chapter.
277 * struct vif_params - describes virtual interface parameters
278 * @use_4addr: use 4-address frames
285 * struct key_params - key information
287 * Information about a key
290 * @key_len: length of key material
291 * @cipher: cipher suite selector
292 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
293 * with the get_key() callback, must be in little endian,
294 * length given by @seq_len.
295 * @seq_len: length of @seq.
306 * enum survey_info_flags - survey information flags
308 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
309 * @SURVEY_INFO_IN_USE: channel is currently being used
310 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
311 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
312 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
313 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
314 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
316 * Used by the driver to indicate which info in &struct survey_info
317 * it has filled in during the get_survey().
319 enum survey_info_flags {
320 SURVEY_INFO_NOISE_DBM = 1<<0,
321 SURVEY_INFO_IN_USE = 1<<1,
322 SURVEY_INFO_CHANNEL_TIME = 1<<2,
323 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
324 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
325 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
326 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
330 * struct survey_info - channel survey response
332 * @channel: the channel this survey record reports, mandatory
333 * @filled: bitflag of flags from &enum survey_info_flags
334 * @noise: channel noise in dBm. This and all following fields are
336 * @channel_time: amount of time in ms the radio spent on the channel
337 * @channel_time_busy: amount of time the primary channel was sensed busy
338 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
339 * @channel_time_rx: amount of time the radio spent receiving data
340 * @channel_time_tx: amount of time the radio spent transmitting data
342 * Used by dump_survey() to report back per-channel survey information.
344 * This structure can later be expanded with things like
345 * channel duty cycle etc.
348 struct ieee80211_channel *channel;
350 u64 channel_time_busy;
351 u64 channel_time_ext_busy;
359 * struct cfg80211_crypto_settings - Crypto settings
360 * @wpa_versions: indicates which, if any, WPA versions are enabled
361 * (from enum nl80211_wpa_versions)
362 * @cipher_group: group key cipher suite (or 0 if unset)
363 * @n_ciphers_pairwise: number of AP supported unicast ciphers
364 * @ciphers_pairwise: unicast key cipher suites
365 * @n_akm_suites: number of AKM suites
366 * @akm_suites: AKM suites
367 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
368 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
369 * required to assume that the port is unauthorized until authorized by
370 * user space. Otherwise, port is marked authorized by default.
371 * @control_port_ethertype: the control port protocol that should be
372 * allowed through even on unauthorized ports
373 * @control_port_no_encrypt: TRUE to prevent encryption of control port
376 struct cfg80211_crypto_settings {
379 int n_ciphers_pairwise;
380 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
382 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
384 __be16 control_port_ethertype;
385 bool control_port_no_encrypt;
389 * struct cfg80211_beacon_data - beacon data
390 * @head: head portion of beacon (before TIM IE)
391 * or %NULL if not changed
392 * @tail: tail portion of beacon (after TIM IE)
393 * or %NULL if not changed
394 * @head_len: length of @head
395 * @tail_len: length of @tail
396 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
397 * @beacon_ies_len: length of beacon_ies in octets
398 * @proberesp_ies: extra information element(s) to add into Probe Response
400 * @proberesp_ies_len: length of proberesp_ies in octets
401 * @assocresp_ies: extra information element(s) to add into (Re)Association
402 * Response frames or %NULL
403 * @assocresp_ies_len: length of assocresp_ies in octets
404 * @probe_resp_len: length of probe response template (@probe_resp)
405 * @probe_resp: probe response template (AP mode only)
407 struct cfg80211_beacon_data {
408 const u8 *head, *tail;
409 const u8 *beacon_ies;
410 const u8 *proberesp_ies;
411 const u8 *assocresp_ies;
412 const u8 *probe_resp;
414 size_t head_len, tail_len;
415 size_t beacon_ies_len;
416 size_t proberesp_ies_len;
417 size_t assocresp_ies_len;
418 size_t probe_resp_len;
422 * struct cfg80211_ap_settings - AP configuration
424 * Used to configure an AP interface.
426 * @channel: the channel to start the AP on
427 * @channel_type: the channel type to use
428 * @beacon: beacon data
429 * @beacon_interval: beacon interval
430 * @dtim_period: DTIM period
431 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
433 * @ssid_len: length of @ssid
434 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
435 * @crypto: crypto settings
436 * @privacy: the BSS uses privacy
437 * @auth_type: Authentication type (algorithm)
438 * @inactivity_timeout: time in seconds to determine station's inactivity.
440 struct cfg80211_ap_settings {
441 struct ieee80211_channel *channel;
442 enum nl80211_channel_type channel_type;
444 struct cfg80211_beacon_data beacon;
446 int beacon_interval, dtim_period;
449 enum nl80211_hidden_ssid hidden_ssid;
450 struct cfg80211_crypto_settings crypto;
452 enum nl80211_auth_type auth_type;
453 int inactivity_timeout;
457 * enum plink_action - actions to perform in mesh peers
459 * @PLINK_ACTION_INVALID: action 0 is reserved
460 * @PLINK_ACTION_OPEN: start mesh peer link establishment
461 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
464 PLINK_ACTION_INVALID,
470 * enum station_parameters_apply_mask - station parameter values to apply
471 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
473 * Not all station parameters have in-band "no change" signalling,
474 * for those that don't these flags will are used.
476 enum station_parameters_apply_mask {
477 STATION_PARAM_APPLY_UAPSD = BIT(0),
481 * struct station_parameters - station parameters
483 * Used to change and create a new station.
485 * @vlan: vlan interface station should belong to
486 * @supported_rates: supported rates in IEEE 802.11 format
487 * (or NULL for no change)
488 * @supported_rates_len: number of supported rates
489 * @sta_flags_mask: station flags that changed
490 * (bitmask of BIT(NL80211_STA_FLAG_...))
491 * @sta_flags_set: station flags values
492 * (bitmask of BIT(NL80211_STA_FLAG_...))
493 * @listen_interval: listen interval or -1 for no change
494 * @aid: AID or zero for no change
495 * @plink_action: plink action to take
496 * @plink_state: set the peer link state for a station
497 * @ht_capa: HT capabilities of station
498 * @uapsd_queues: bitmap of queues configured for uapsd. same format
499 * as the AC bitmap in the QoS info field
500 * @max_sp: max Service Period. same format as the MAX_SP in the
501 * QoS info field (but already shifted down)
502 * @sta_modify_mask: bitmap indicating which parameters changed
503 * (for those that don't have a natural "no change" value),
504 * see &enum station_parameters_apply_mask
506 struct station_parameters {
508 struct net_device *vlan;
509 u32 sta_flags_mask, sta_flags_set;
513 u8 supported_rates_len;
516 struct ieee80211_ht_cap *ht_capa;
522 * enum station_info_flags - station information flags
524 * Used by the driver to indicate which info in &struct station_info
525 * it has filled in during get_station() or dump_station().
527 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
528 * @STATION_INFO_RX_BYTES: @rx_bytes filled
529 * @STATION_INFO_TX_BYTES: @tx_bytes filled
530 * @STATION_INFO_LLID: @llid filled
531 * @STATION_INFO_PLID: @plid filled
532 * @STATION_INFO_PLINK_STATE: @plink_state filled
533 * @STATION_INFO_SIGNAL: @signal filled
534 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
535 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
536 * @STATION_INFO_RX_PACKETS: @rx_packets filled
537 * @STATION_INFO_TX_PACKETS: @tx_packets filled
538 * @STATION_INFO_TX_RETRIES: @tx_retries filled
539 * @STATION_INFO_TX_FAILED: @tx_failed filled
540 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
541 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
542 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
543 * @STATION_INFO_BSS_PARAM: @bss_param filled
544 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
545 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
546 * @STATION_INFO_STA_FLAGS: @sta_flags filled
547 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
548 * @STATION_INFO_T_OFFSET: @t_offset filled
550 enum station_info_flags {
551 STATION_INFO_INACTIVE_TIME = 1<<0,
552 STATION_INFO_RX_BYTES = 1<<1,
553 STATION_INFO_TX_BYTES = 1<<2,
554 STATION_INFO_LLID = 1<<3,
555 STATION_INFO_PLID = 1<<4,
556 STATION_INFO_PLINK_STATE = 1<<5,
557 STATION_INFO_SIGNAL = 1<<6,
558 STATION_INFO_TX_BITRATE = 1<<7,
559 STATION_INFO_RX_PACKETS = 1<<8,
560 STATION_INFO_TX_PACKETS = 1<<9,
561 STATION_INFO_TX_RETRIES = 1<<10,
562 STATION_INFO_TX_FAILED = 1<<11,
563 STATION_INFO_RX_DROP_MISC = 1<<12,
564 STATION_INFO_SIGNAL_AVG = 1<<13,
565 STATION_INFO_RX_BITRATE = 1<<14,
566 STATION_INFO_BSS_PARAM = 1<<15,
567 STATION_INFO_CONNECTED_TIME = 1<<16,
568 STATION_INFO_ASSOC_REQ_IES = 1<<17,
569 STATION_INFO_STA_FLAGS = 1<<18,
570 STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
571 STATION_INFO_T_OFFSET = 1<<20,
575 * enum station_info_rate_flags - bitrate info flags
577 * Used by the driver to indicate the specific rate transmission
578 * type for 802.11n transmissions.
580 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
581 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
582 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
583 * @RATE_INFO_FLAGS_60G: 60gHz MCS
585 enum rate_info_flags {
586 RATE_INFO_FLAGS_MCS = 1<<0,
587 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
588 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
589 RATE_INFO_FLAGS_60G = 1<<3,
593 * struct rate_info - bitrate information
595 * Information about a receiving or transmitting bitrate
597 * @flags: bitflag of flags from &enum rate_info_flags
598 * @mcs: mcs index if struct describes a 802.11n bitrate
599 * @legacy: bitrate in 100kbit/s for 802.11abg
608 * enum station_info_rate_flags - bitrate info flags
610 * Used by the driver to indicate the specific rate transmission
611 * type for 802.11n transmissions.
613 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
614 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
615 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
617 enum bss_param_flags {
618 BSS_PARAM_FLAGS_CTS_PROT = 1<<0,
619 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1,
620 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2,
624 * struct sta_bss_parameters - BSS parameters for the attached station
626 * Information about the currently associated BSS
628 * @flags: bitflag of flags from &enum bss_param_flags
629 * @dtim_period: DTIM period for the BSS
630 * @beacon_interval: beacon interval
632 struct sta_bss_parameters {
639 * struct station_info - station information
641 * Station information filled by driver for get_station() and dump_station.
643 * @filled: bitflag of flags from &enum station_info_flags
644 * @connected_time: time(in secs) since a station is last connected
645 * @inactive_time: time since last station activity (tx/rx) in milliseconds
646 * @rx_bytes: bytes received from this station
647 * @tx_bytes: bytes transmitted to this station
648 * @llid: mesh local link id
649 * @plid: mesh peer link id
650 * @plink_state: mesh peer link state
651 * @signal: The signal strength, type depends on the wiphy's signal_type.
652 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
653 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
654 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
655 * @txrate: current unicast bitrate from this station
656 * @rxrate: current unicast bitrate to this station
657 * @rx_packets: packets received from this station
658 * @tx_packets: packets transmitted to this station
659 * @tx_retries: cumulative retry counts
660 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
661 * @rx_dropped_misc: Dropped for un-specified reason.
662 * @bss_param: current BSS parameters
663 * @generation: generation number for nl80211 dumps.
664 * This number should increase every time the list of stations
665 * changes, i.e. when a station is added or removed, so that
666 * userspace can tell whether it got a consistent snapshot.
667 * @assoc_req_ies: IEs from (Re)Association Request.
668 * This is used only when in AP mode with drivers that do not use
669 * user space MLME/SME implementation. The information is provided for
670 * the cfg80211_new_sta() calls to notify user space of the IEs.
671 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
672 * @sta_flags: station flags mask & values
673 * @beacon_loss_count: Number of times beacon loss event has triggered.
674 * @t_offset: Time offset of the station relative to this host.
676 struct station_info {
687 struct rate_info txrate;
688 struct rate_info rxrate;
694 struct sta_bss_parameters bss_param;
695 struct nl80211_sta_flag_update sta_flags;
699 const u8 *assoc_req_ies;
700 size_t assoc_req_ies_len;
702 u32 beacon_loss_count;
706 * Note: Add a new enum station_info_flags value for each new field and
707 * use it to check which fields are initialized.
712 * enum monitor_flags - monitor flags
714 * Monitor interface configuration flags. Note that these must be the bits
715 * according to the nl80211 flags.
717 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
718 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
719 * @MONITOR_FLAG_CONTROL: pass control frames
720 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
721 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
724 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
725 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
726 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
727 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
728 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
732 * enum mpath_info_flags - mesh path information flags
734 * Used by the driver to indicate which info in &struct mpath_info it has filled
735 * in during get_station() or dump_station().
737 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
738 * @MPATH_INFO_SN: @sn filled
739 * @MPATH_INFO_METRIC: @metric filled
740 * @MPATH_INFO_EXPTIME: @exptime filled
741 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
742 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
743 * @MPATH_INFO_FLAGS: @flags filled
745 enum mpath_info_flags {
746 MPATH_INFO_FRAME_QLEN = BIT(0),
747 MPATH_INFO_SN = BIT(1),
748 MPATH_INFO_METRIC = BIT(2),
749 MPATH_INFO_EXPTIME = BIT(3),
750 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
751 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
752 MPATH_INFO_FLAGS = BIT(6),
756 * struct mpath_info - mesh path information
758 * Mesh path information filled by driver for get_mpath() and dump_mpath().
760 * @filled: bitfield of flags from &enum mpath_info_flags
761 * @frame_qlen: number of queued frames for this destination
762 * @sn: target sequence number
763 * @metric: metric (cost) of this mesh path
764 * @exptime: expiration time for the mesh path from now, in msecs
765 * @flags: mesh path flags
766 * @discovery_timeout: total mesh path discovery timeout, in msecs
767 * @discovery_retries: mesh path discovery retries
768 * @generation: generation number for nl80211 dumps.
769 * This number should increase every time the list of mesh paths
770 * changes, i.e. when a station is added or removed, so that
771 * userspace can tell whether it got a consistent snapshot.
779 u32 discovery_timeout;
780 u8 discovery_retries;
787 * struct bss_parameters - BSS parameters
789 * Used to change BSS parameters (mainly for AP mode).
791 * @use_cts_prot: Whether to use CTS protection
792 * (0 = no, 1 = yes, -1 = do not change)
793 * @use_short_preamble: Whether the use of short preambles is allowed
794 * (0 = no, 1 = yes, -1 = do not change)
795 * @use_short_slot_time: Whether the use of short slot time is allowed
796 * (0 = no, 1 = yes, -1 = do not change)
797 * @basic_rates: basic rates in IEEE 802.11 format
798 * (or NULL for no change)
799 * @basic_rates_len: number of basic rates
800 * @ap_isolate: do not forward packets between connected stations
801 * @ht_opmode: HT Operation mode
802 * (u16 = opmode, -1 = do not change)
804 struct bss_parameters {
806 int use_short_preamble;
807 int use_short_slot_time;
815 * struct mesh_config - 802.11s mesh configuration
817 * These parameters can be changed while the mesh is active.
819 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
820 * by the Mesh Peering Open message
821 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
822 * used by the Mesh Peering Open message
823 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
824 * the mesh peering management to close a mesh peering
825 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
827 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
828 * be sent to establish a new peer link instance in a mesh
829 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
830 * @element_ttl: the value of TTL field set at a mesh STA for path selection
832 * @auto_open_plinks: whether we should automatically open peer links when we
833 * detect compatible mesh peers
834 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
835 * synchronize to for 11s default synchronization method
836 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
837 * that an originator mesh STA can send to a particular path target
838 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
839 * @min_discovery_timeout: the minimum length of time to wait until giving up on
840 * a path discovery in milliseconds
841 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
842 * receiving a PREQ shall consider the forwarding information from the
843 * root to be valid. (TU = time unit)
844 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
845 * which a mesh STA can send only one action frame containing a PREQ
847 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
848 * which a mesh STA can send only one Action frame containing a PERR
850 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
851 * it takes for an HWMP information element to propagate across the mesh
852 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
853 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
854 * announcements are transmitted
855 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
856 * station has access to a broader network beyond the MBSS. (This is
857 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
858 * only means that the station will announce others it's a mesh gate, but
859 * not necessarily using the gate announcement protocol. Still keeping the
860 * same nomenclature to be in sync with the spec)
861 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
862 * entity (default is TRUE - forwarding entity)
863 * @rssi_threshold: the threshold for average signal strength of candidate
864 * station to establish a peer link
865 * @ht_opmode: mesh HT protection mode
867 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
868 * receiving a proactive PREQ shall consider the forwarding information to
869 * the root mesh STA to be valid.
871 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
872 * PREQs are transmitted.
873 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
874 * during which a mesh STA can send only one Action frame containing
875 * a PREQ element for root path confirmation.
878 u16 dot11MeshRetryTimeout;
879 u16 dot11MeshConfirmTimeout;
880 u16 dot11MeshHoldingTimeout;
881 u16 dot11MeshMaxPeerLinks;
882 u8 dot11MeshMaxRetries;
885 bool auto_open_plinks;
886 u32 dot11MeshNbrOffsetMaxNeighbor;
887 u8 dot11MeshHWMPmaxPREQretries;
888 u32 path_refresh_time;
889 u16 min_discovery_timeout;
890 u32 dot11MeshHWMPactivePathTimeout;
891 u16 dot11MeshHWMPpreqMinInterval;
892 u16 dot11MeshHWMPperrMinInterval;
893 u16 dot11MeshHWMPnetDiameterTraversalTime;
894 u8 dot11MeshHWMPRootMode;
895 u16 dot11MeshHWMPRannInterval;
896 bool dot11MeshGateAnnouncementProtocol;
897 bool dot11MeshForwarding;
900 u32 dot11MeshHWMPactivePathToRootTimeout;
901 u16 dot11MeshHWMProotInterval;
902 u16 dot11MeshHWMPconfirmationInterval;
906 * struct mesh_setup - 802.11s mesh setup configuration
907 * @channel: the channel to start the mesh network on
908 * @channel_type: the channel type to use
909 * @mesh_id: the mesh ID
910 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
911 * @sync_method: which synchronization method to use
912 * @path_sel_proto: which path selection protocol to use
913 * @path_metric: which metric to use
914 * @ie: vendor information elements (optional)
915 * @ie_len: length of vendor information elements
916 * @is_authenticated: this mesh requires authentication
917 * @is_secure: this mesh uses security
918 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
920 * These parameters are fixed when the mesh is created.
923 struct ieee80211_channel *channel;
924 enum nl80211_channel_type channel_type;
932 bool is_authenticated;
934 int mcast_rate[IEEE80211_NUM_BANDS];
938 * struct ieee80211_txq_params - TX queue parameters
940 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
941 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
943 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
945 * @aifs: Arbitration interframe space [0..255]
947 struct ieee80211_txq_params {
955 /* from net/wireless.h */
959 * DOC: Scanning and BSS list handling
961 * The scanning process itself is fairly simple, but cfg80211 offers quite
962 * a bit of helper functionality. To start a scan, the scan operation will
963 * be invoked with a scan definition. This scan definition contains the
964 * channels to scan, and the SSIDs to send probe requests for (including the
965 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
966 * probe. Additionally, a scan request may contain extra information elements
967 * that should be added to the probe request. The IEs are guaranteed to be
968 * well-formed, and will not exceed the maximum length the driver advertised
969 * in the wiphy structure.
971 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
972 * it is responsible for maintaining the BSS list; the driver should not
973 * maintain a list itself. For this notification, various functions exist.
975 * Since drivers do not maintain a BSS list, there are also a number of
976 * functions to search for a BSS and obtain information about it from the
977 * BSS structure cfg80211 maintains. The BSS list is also made available
982 * struct cfg80211_ssid - SSID description
984 * @ssid_len: length of the ssid
986 struct cfg80211_ssid {
987 u8 ssid[IEEE80211_MAX_SSID_LEN];
992 * struct cfg80211_scan_request - scan request description
994 * @ssids: SSIDs to scan for (active scan only)
995 * @n_ssids: number of SSIDs
996 * @channels: channels to scan on.
997 * @n_channels: total number of channels to scan
998 * @ie: optional information element(s) to add into Probe Request or %NULL
999 * @ie_len: length of ie in octets
1000 * @rates: bitmap of rates to advertise for each band
1001 * @wiphy: the wiphy this was for
1002 * @wdev: the wireless device to scan for
1003 * @aborted: (internal) scan request was notified as aborted
1004 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1006 struct cfg80211_scan_request {
1007 struct cfg80211_ssid *ssids;
1013 u32 rates[IEEE80211_NUM_BANDS];
1015 struct wireless_dev *wdev;
1018 struct wiphy *wiphy;
1023 struct ieee80211_channel *channels[0];
1027 * struct cfg80211_match_set - sets of attributes to match
1029 * @ssid: SSID to be matched
1031 struct cfg80211_match_set {
1032 struct cfg80211_ssid ssid;
1036 * struct cfg80211_sched_scan_request - scheduled scan request description
1038 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
1039 * @n_ssids: number of SSIDs
1040 * @n_channels: total number of channels to scan
1041 * @interval: interval between each scheduled scan cycle
1042 * @ie: optional information element(s) to add into Probe Request or %NULL
1043 * @ie_len: length of ie in octets
1044 * @match_sets: sets of parameters to be matched for a scan result
1045 * entry to be considered valid and to be passed to the host
1046 * (others are filtered out).
1047 * If ommited, all results are passed.
1048 * @n_match_sets: number of match sets
1049 * @wiphy: the wiphy this was for
1050 * @dev: the interface
1051 * @channels: channels to scan
1052 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1054 struct cfg80211_sched_scan_request {
1055 struct cfg80211_ssid *ssids;
1061 struct cfg80211_match_set *match_sets;
1066 struct wiphy *wiphy;
1067 struct net_device *dev;
1070 struct ieee80211_channel *channels[0];
1074 * enum cfg80211_signal_type - signal type
1076 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
1077 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
1078 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
1080 enum cfg80211_signal_type {
1081 CFG80211_SIGNAL_TYPE_NONE,
1082 CFG80211_SIGNAL_TYPE_MBM,
1083 CFG80211_SIGNAL_TYPE_UNSPEC,
1087 * struct cfg80211_bss - BSS description
1089 * This structure describes a BSS (which may also be a mesh network)
1090 * for use in scan results and similar.
1092 * @channel: channel this BSS is on
1093 * @bssid: BSSID of the BSS
1094 * @tsf: timestamp of last received update
1095 * @beacon_interval: the beacon interval as from the frame
1096 * @capability: the capability field in host byte order
1097 * @information_elements: the information elements (Note that there
1098 * is no guarantee that these are well-formed!); this is a pointer to
1099 * either the beacon_ies or proberesp_ies depending on whether Probe
1100 * Response frame has been received
1101 * @len_information_elements: total length of the information elements
1102 * @beacon_ies: the information elements from the last Beacon frame
1103 * @len_beacon_ies: total length of the beacon_ies
1104 * @proberesp_ies: the information elements from the last Probe Response frame
1105 * @len_proberesp_ies: total length of the proberesp_ies
1106 * @signal: signal strength value (type depends on the wiphy's signal_type)
1107 * @free_priv: function pointer to free private data
1108 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
1110 struct cfg80211_bss {
1111 struct ieee80211_channel *channel;
1115 u16 beacon_interval;
1117 u8 *information_elements;
1118 size_t len_information_elements;
1120 size_t len_beacon_ies;
1122 size_t len_proberesp_ies;
1126 void (*free_priv)(struct cfg80211_bss *bss);
1127 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
1131 * ieee80211_bss_get_ie - find IE with given ID
1132 * @bss: the bss to search
1134 * Returns %NULL if not found.
1136 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
1140 * struct cfg80211_auth_request - Authentication request data
1142 * This structure provides information needed to complete IEEE 802.11
1145 * @bss: The BSS to authenticate with.
1146 * @auth_type: Authentication type (algorithm)
1147 * @ie: Extra IEs to add to Authentication frame or %NULL
1148 * @ie_len: Length of ie buffer in octets
1149 * @key_len: length of WEP key for shared key authentication
1150 * @key_idx: index of WEP key for shared key authentication
1151 * @key: WEP key for shared key authentication
1153 struct cfg80211_auth_request {
1154 struct cfg80211_bss *bss;
1157 enum nl80211_auth_type auth_type;
1159 u8 key_len, key_idx;
1163 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
1165 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
1167 enum cfg80211_assoc_req_flags {
1168 ASSOC_REQ_DISABLE_HT = BIT(0),
1172 * struct cfg80211_assoc_request - (Re)Association request data
1174 * This structure provides information needed to complete IEEE 802.11
1176 * @bss: The BSS to associate with. If the call is successful the driver
1177 * is given a reference that it must release, normally via a call to
1178 * cfg80211_send_rx_assoc(), or, if association timed out, with a
1179 * call to cfg80211_put_bss() (in addition to calling
1180 * cfg80211_send_assoc_timeout())
1181 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
1182 * @ie_len: Length of ie buffer in octets
1183 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
1184 * @crypto: crypto settings
1185 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1186 * @flags: See &enum cfg80211_assoc_req_flags
1187 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1188 * will be used in ht_capa. Un-supported values will be ignored.
1189 * @ht_capa_mask: The bits of ht_capa which are to be used.
1191 struct cfg80211_assoc_request {
1192 struct cfg80211_bss *bss;
1193 const u8 *ie, *prev_bssid;
1195 struct cfg80211_crypto_settings crypto;
1198 struct ieee80211_ht_cap ht_capa;
1199 struct ieee80211_ht_cap ht_capa_mask;
1203 * struct cfg80211_deauth_request - Deauthentication request data
1205 * This structure provides information needed to complete IEEE 802.11
1208 * @bssid: the BSSID of the BSS to deauthenticate from
1209 * @ie: Extra IEs to add to Deauthentication frame or %NULL
1210 * @ie_len: Length of ie buffer in octets
1211 * @reason_code: The reason code for the deauthentication
1213 struct cfg80211_deauth_request {
1221 * struct cfg80211_disassoc_request - Disassociation request data
1223 * This structure provides information needed to complete IEEE 802.11
1226 * @bss: the BSS to disassociate from
1227 * @ie: Extra IEs to add to Disassociation frame or %NULL
1228 * @ie_len: Length of ie buffer in octets
1229 * @reason_code: The reason code for the disassociation
1230 * @local_state_change: This is a request for a local state only, i.e., no
1231 * Disassociation frame is to be transmitted.
1233 struct cfg80211_disassoc_request {
1234 struct cfg80211_bss *bss;
1238 bool local_state_change;
1242 * struct cfg80211_ibss_params - IBSS parameters
1244 * This structure defines the IBSS parameters for the join_ibss()
1247 * @ssid: The SSID, will always be non-null.
1248 * @ssid_len: The length of the SSID, will always be non-zero.
1249 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
1250 * search for IBSSs with a different BSSID.
1251 * @channel: The channel to use if no IBSS can be found to join.
1252 * @channel_type: channel type (HT mode)
1253 * @channel_fixed: The channel should be fixed -- do not search for
1254 * IBSSs to join on other channels.
1255 * @ie: information element(s) to include in the beacon
1256 * @ie_len: length of that
1257 * @beacon_interval: beacon interval to use
1258 * @privacy: this is a protected network, keys will be configured
1260 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
1261 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
1262 * required to assume that the port is unauthorized until authorized by
1263 * user space. Otherwise, port is marked authorized by default.
1264 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1265 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
1267 struct cfg80211_ibss_params {
1270 struct ieee80211_channel *channel;
1271 enum nl80211_channel_type channel_type;
1273 u8 ssid_len, ie_len;
1274 u16 beacon_interval;
1279 int mcast_rate[IEEE80211_NUM_BANDS];
1283 * struct cfg80211_connect_params - Connection parameters
1285 * This structure provides information needed to complete IEEE 802.11
1286 * authentication and association.
1288 * @channel: The channel to use or %NULL if not specified (auto-select based
1290 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
1293 * @ssid_len: Length of ssid in octets
1294 * @auth_type: Authentication type (algorithm)
1295 * @ie: IEs for association request
1296 * @ie_len: Length of assoc_ie in octets
1297 * @privacy: indicates whether privacy-enabled APs should be used
1298 * @crypto: crypto settings
1299 * @key_len: length of WEP key for shared key authentication
1300 * @key_idx: index of WEP key for shared key authentication
1301 * @key: WEP key for shared key authentication
1302 * @flags: See &enum cfg80211_assoc_req_flags
1303 * @bg_scan_period: Background scan period in seconds
1304 * or -1 to indicate that default value is to be used.
1305 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
1306 * will be used in ht_capa. Un-supported values will be ignored.
1307 * @ht_capa_mask: The bits of ht_capa which are to be used.
1309 struct cfg80211_connect_params {
1310 struct ieee80211_channel *channel;
1314 enum nl80211_auth_type auth_type;
1318 struct cfg80211_crypto_settings crypto;
1320 u8 key_len, key_idx;
1323 struct ieee80211_ht_cap ht_capa;
1324 struct ieee80211_ht_cap ht_capa_mask;
1328 * enum wiphy_params_flags - set_wiphy_params bitfield values
1329 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1330 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1331 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1332 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1333 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1335 enum wiphy_params_flags {
1336 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
1337 WIPHY_PARAM_RETRY_LONG = 1 << 1,
1338 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
1339 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
1340 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
1344 * cfg80211_bitrate_mask - masks for bitrate control
1346 struct cfg80211_bitrate_mask {
1349 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
1350 } control[IEEE80211_NUM_BANDS];
1353 * struct cfg80211_pmksa - PMK Security Association
1355 * This structure is passed to the set/del_pmksa() method for PMKSA
1358 * @bssid: The AP's BSSID.
1359 * @pmkid: The PMK material itself.
1361 struct cfg80211_pmksa {
1367 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
1368 * @mask: bitmask where to match pattern and where to ignore bytes,
1369 * one bit per byte, in same format as nl80211
1370 * @pattern: bytes to match where bitmask is 1
1371 * @pattern_len: length of pattern (in bytes)
1373 * Internal note: @mask and @pattern are allocated in one chunk of
1374 * memory, free @mask only!
1376 struct cfg80211_wowlan_trig_pkt_pattern {
1382 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
1384 * This structure defines the enabled WoWLAN triggers for the device.
1385 * @any: wake up on any activity -- special trigger if device continues
1386 * operating as normal during suspend
1387 * @disconnect: wake up if getting disconnected
1388 * @magic_pkt: wake up on receiving magic packet
1389 * @patterns: wake up on receiving packet matching a pattern
1390 * @n_patterns: number of patterns
1391 * @gtk_rekey_failure: wake up on GTK rekey failure
1392 * @eap_identity_req: wake up on EAP identity request packet
1393 * @four_way_handshake: wake up on 4-way handshake
1394 * @rfkill_release: wake up when rfkill is released
1396 struct cfg80211_wowlan {
1397 bool any, disconnect, magic_pkt, gtk_rekey_failure,
1398 eap_identity_req, four_way_handshake,
1400 struct cfg80211_wowlan_trig_pkt_pattern *patterns;
1405 * struct cfg80211_gtk_rekey_data - rekey data
1406 * @kek: key encryption key
1407 * @kck: key confirmation key
1408 * @replay_ctr: replay counter
1410 struct cfg80211_gtk_rekey_data {
1411 u8 kek[NL80211_KEK_LEN];
1412 u8 kck[NL80211_KCK_LEN];
1413 u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
1417 * struct cfg80211_ops - backend description for wireless configuration
1419 * This struct is registered by fullmac card drivers and/or wireless stacks
1420 * in order to handle configuration requests on their interfaces.
1422 * All callbacks except where otherwise noted should return 0
1423 * on success or a negative error code.
1425 * All operations are currently invoked under rtnl for consistency with the
1426 * wireless extensions but this is subject to reevaluation as soon as this
1427 * code is used more widely and we have a first user without wext.
1429 * @suspend: wiphy device needs to be suspended. The variable @wow will
1430 * be %NULL or contain the enabled Wake-on-Wireless triggers that are
1431 * configured for the device.
1432 * @resume: wiphy device needs to be resumed
1433 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
1434 * to call device_set_wakeup_enable() to enable/disable wakeup from
1437 * @add_virtual_intf: create a new virtual interface with the given name,
1438 * must set the struct wireless_dev's iftype. Beware: You must create
1439 * the new netdev in the wiphy's network namespace! Returns the struct
1440 * wireless_dev, or an ERR_PTR.
1442 * @del_virtual_intf: remove the virtual interface
1444 * @change_virtual_intf: change type/configuration of virtual interface,
1445 * keep the struct wireless_dev's iftype updated.
1447 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1448 * when adding a group key.
1450 * @get_key: get information about the key with the given parameters.
1451 * @mac_addr will be %NULL when requesting information for a group
1452 * key. All pointers given to the @callback function need not be valid
1453 * after it returns. This function should return an error if it is
1454 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1456 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1457 * and @key_index, return -ENOENT if the key doesn't exist.
1459 * @set_default_key: set the default key on an interface
1461 * @set_default_mgmt_key: set the default management frame key on an interface
1463 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
1465 * @start_ap: Start acting in AP mode defined by the parameters.
1466 * @change_beacon: Change the beacon parameters for an access point mode
1467 * interface. This should reject the call when AP mode wasn't started.
1468 * @stop_ap: Stop being an AP, including stopping beaconing.
1470 * @add_station: Add a new station.
1471 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1472 * @change_station: Modify a given station. Note that flags changes are not much
1473 * validated in cfg80211, in particular the auth/assoc/authorized flags
1474 * might come to the driver in invalid combinations -- make sure to check
1475 * them, also against the existing state! Also, supported_rates changes are
1476 * not checked in station mode -- drivers need to reject (or ignore) them
1477 * for anything but TDLS peers.
1478 * @get_station: get station information for the station identified by @mac
1479 * @dump_station: dump station callback -- resume dump at index @idx
1481 * @add_mpath: add a fixed mesh path
1482 * @del_mpath: delete a given mesh path
1483 * @change_mpath: change a given mesh path
1484 * @get_mpath: get a mesh path for the given parameters
1485 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1486 * @join_mesh: join the mesh network with the specified parameters
1487 * @leave_mesh: leave the current mesh network
1489 * @get_mesh_config: Get the current mesh configuration
1491 * @update_mesh_config: Update mesh parameters on a running mesh.
1492 * The mask is a bitfield which tells us which parameters to
1493 * set, and which to leave alone.
1495 * @change_bss: Modify parameters for a given BSS.
1497 * @set_txq_params: Set TX queue parameters
1499 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
1500 * as it doesn't implement join_mesh and needs to set the channel to
1501 * join the mesh instead.
1503 * @set_monitor_channel: Set the monitor mode channel for the device. If other
1504 * interfaces are active this callback should reject the configuration.
1505 * If no interfaces are active or the device is down, the channel should
1506 * be stored for when a monitor interface becomes active.
1507 * @set_monitor_enabled: Notify driver that there are only monitor
1508 * interfaces running.
1510 * @scan: Request to do a scan. If returning zero, the scan request is given
1511 * the driver, and will be valid until passed to cfg80211_scan_done().
1512 * For scan results, call cfg80211_inform_bss(); you can call this outside
1513 * the scan/scan_done bracket too.
1515 * @auth: Request to authenticate with the specified peer
1516 * @assoc: Request to (re)associate with the specified peer
1517 * @deauth: Request to deauthenticate from the specified peer
1518 * @disassoc: Request to disassociate from the specified peer
1520 * @connect: Connect to the ESS with the specified parameters. When connected,
1521 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1522 * If the connection fails for some reason, call cfg80211_connect_result()
1523 * with the status from the AP.
1524 * @disconnect: Disconnect from the BSS/ESS.
1526 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1527 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1529 * @leave_ibss: Leave the IBSS.
1531 * @set_wiphy_params: Notify that wiphy parameters have changed;
1532 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1533 * have changed. The actual parameter values are available in
1534 * struct wiphy. If returning an error, no value should be changed.
1536 * @set_tx_power: set the transmit power according to the parameters,
1537 * the power passed is in mBm, to get dBm use MBM_TO_DBM().
1538 * @get_tx_power: store the current TX power into the dbm variable;
1539 * return 0 if successful
1541 * @set_wds_peer: set the WDS peer for a WDS interface
1543 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1544 * functions to adjust rfkill hw state
1546 * @dump_survey: get site survey information.
1548 * @remain_on_channel: Request the driver to remain awake on the specified
1549 * channel for the specified duration to complete an off-channel
1550 * operation (e.g., public action frame exchange). When the driver is
1551 * ready on the requested channel, it must indicate this with an event
1552 * notification by calling cfg80211_ready_on_channel().
1553 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1554 * This allows the operation to be terminated prior to timeout based on
1555 * the duration value.
1556 * @mgmt_tx: Transmit a management frame.
1557 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1558 * frame on another channel
1560 * @testmode_cmd: run a test mode command
1561 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
1562 * used by the function, but 0 and 1 must not be touched. Additionally,
1563 * return error codes other than -ENOBUFS and -ENOENT will terminate the
1564 * dump and return to userspace with an error, so be careful. If any data
1565 * was passed in from userspace then the data/len arguments will be present
1566 * and point to the data contained in %NL80211_ATTR_TESTDATA.
1568 * @set_bitrate_mask: set the bitrate mask configuration
1570 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1571 * devices running firmwares capable of generating the (re) association
1572 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1573 * @del_pmksa: Delete a cached PMKID.
1574 * @flush_pmksa: Flush all cached PMKIDs.
1575 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1576 * allows the driver to adjust the dynamic ps timeout value.
1577 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1578 * @sched_scan_start: Tell the driver to start a scheduled scan.
1579 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
1580 * scan. The driver_initiated flag specifies whether the driver
1581 * itself has informed that the scan has stopped.
1583 * @mgmt_frame_register: Notify driver that a management frame type was
1584 * registered. Note that this callback may not sleep, and cannot run
1585 * concurrently with itself.
1587 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1588 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1589 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1590 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1592 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1594 * @set_ringparam: Set tx and rx ring sizes.
1596 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1598 * @tdls_mgmt: Transmit a TDLS management frame.
1599 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
1601 * @probe_client: probe an associated client, must return a cookie that it
1602 * later passes to cfg80211_probe_status().
1604 * @set_noack_map: Set the NoAck Map for the TIDs.
1606 * @get_et_sset_count: Ethtool API to get string-set count.
1607 * See @ethtool_ops.get_sset_count
1609 * @get_et_stats: Ethtool API to get a set of u64 stats.
1610 * See @ethtool_ops.get_ethtool_stats
1612 * @get_et_strings: Ethtool API to get a set of strings to describe stats
1613 * and perhaps other supported types of ethtool data-sets.
1614 * See @ethtool_ops.get_strings
1616 struct cfg80211_ops {
1617 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
1618 int (*resume)(struct wiphy *wiphy);
1619 void (*set_wakeup)(struct wiphy *wiphy, bool enabled);
1621 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy,
1623 enum nl80211_iftype type,
1625 struct vif_params *params);
1626 int (*del_virtual_intf)(struct wiphy *wiphy,
1627 struct wireless_dev *wdev);
1628 int (*change_virtual_intf)(struct wiphy *wiphy,
1629 struct net_device *dev,
1630 enum nl80211_iftype type, u32 *flags,
1631 struct vif_params *params);
1633 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1634 u8 key_index, bool pairwise, const u8 *mac_addr,
1635 struct key_params *params);
1636 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1637 u8 key_index, bool pairwise, const u8 *mac_addr,
1639 void (*callback)(void *cookie, struct key_params*));
1640 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1641 u8 key_index, bool pairwise, const u8 *mac_addr);
1642 int (*set_default_key)(struct wiphy *wiphy,
1643 struct net_device *netdev,
1644 u8 key_index, bool unicast, bool multicast);
1645 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1646 struct net_device *netdev,
1649 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev,
1650 struct cfg80211_ap_settings *settings);
1651 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
1652 struct cfg80211_beacon_data *info);
1653 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
1656 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1657 u8 *mac, struct station_parameters *params);
1658 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1660 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1661 u8 *mac, struct station_parameters *params);
1662 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1663 u8 *mac, struct station_info *sinfo);
1664 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1665 int idx, u8 *mac, struct station_info *sinfo);
1667 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1668 u8 *dst, u8 *next_hop);
1669 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1671 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1672 u8 *dst, u8 *next_hop);
1673 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1674 u8 *dst, u8 *next_hop,
1675 struct mpath_info *pinfo);
1676 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1677 int idx, u8 *dst, u8 *next_hop,
1678 struct mpath_info *pinfo);
1679 int (*get_mesh_config)(struct wiphy *wiphy,
1680 struct net_device *dev,
1681 struct mesh_config *conf);
1682 int (*update_mesh_config)(struct wiphy *wiphy,
1683 struct net_device *dev, u32 mask,
1684 const struct mesh_config *nconf);
1685 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
1686 const struct mesh_config *conf,
1687 const struct mesh_setup *setup);
1688 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
1690 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1691 struct bss_parameters *params);
1693 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1694 struct ieee80211_txq_params *params);
1696 int (*libertas_set_mesh_channel)(struct wiphy *wiphy,
1697 struct net_device *dev,
1698 struct ieee80211_channel *chan);
1700 int (*set_monitor_channel)(struct wiphy *wiphy,
1701 struct ieee80211_channel *chan,
1702 enum nl80211_channel_type channel_type);
1704 int (*scan)(struct wiphy *wiphy,
1705 struct cfg80211_scan_request *request);
1707 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1708 struct cfg80211_auth_request *req);
1709 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1710 struct cfg80211_assoc_request *req);
1711 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1712 struct cfg80211_deauth_request *req);
1713 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1714 struct cfg80211_disassoc_request *req);
1716 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1717 struct cfg80211_connect_params *sme);
1718 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1721 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1722 struct cfg80211_ibss_params *params);
1723 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1725 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1727 int (*set_tx_power)(struct wiphy *wiphy,
1728 enum nl80211_tx_power_setting type, int mbm);
1729 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1731 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1734 void (*rfkill_poll)(struct wiphy *wiphy);
1736 #ifdef CONFIG_NL80211_TESTMODE
1737 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1738 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
1739 struct netlink_callback *cb,
1740 void *data, int len);
1743 int (*set_bitrate_mask)(struct wiphy *wiphy,
1744 struct net_device *dev,
1746 const struct cfg80211_bitrate_mask *mask);
1748 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1749 int idx, struct survey_info *info);
1751 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1752 struct cfg80211_pmksa *pmksa);
1753 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1754 struct cfg80211_pmksa *pmksa);
1755 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
1757 int (*remain_on_channel)(struct wiphy *wiphy,
1758 struct wireless_dev *wdev,
1759 struct ieee80211_channel *chan,
1760 enum nl80211_channel_type channel_type,
1761 unsigned int duration,
1763 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
1764 struct wireless_dev *wdev,
1767 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
1768 struct ieee80211_channel *chan, bool offchan,
1769 enum nl80211_channel_type channel_type,
1770 bool channel_type_valid, unsigned int wait,
1771 const u8 *buf, size_t len, bool no_cck,
1772 bool dont_wait_for_ack, u64 *cookie);
1773 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
1774 struct wireless_dev *wdev,
1777 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1778 bool enabled, int timeout);
1780 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
1781 struct net_device *dev,
1782 s32 rssi_thold, u32 rssi_hyst);
1784 void (*mgmt_frame_register)(struct wiphy *wiphy,
1785 struct wireless_dev *wdev,
1786 u16 frame_type, bool reg);
1788 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
1789 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
1791 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
1792 void (*get_ringparam)(struct wiphy *wiphy,
1793 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1795 int (*sched_scan_start)(struct wiphy *wiphy,
1796 struct net_device *dev,
1797 struct cfg80211_sched_scan_request *request);
1798 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
1800 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
1801 struct cfg80211_gtk_rekey_data *data);
1803 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1804 u8 *peer, u8 action_code, u8 dialog_token,
1805 u16 status_code, const u8 *buf, size_t len);
1806 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
1807 u8 *peer, enum nl80211_tdls_operation oper);
1809 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
1810 const u8 *peer, u64 *cookie);
1812 int (*set_noack_map)(struct wiphy *wiphy,
1813 struct net_device *dev,
1816 int (*get_et_sset_count)(struct wiphy *wiphy,
1817 struct net_device *dev, int sset);
1818 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
1819 struct ethtool_stats *stats, u64 *data);
1820 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
1821 u32 sset, u8 *data);
1823 void (*set_monitor_enabled)(struct wiphy *wiphy, bool enabled);
1827 * wireless hardware and networking interfaces structures
1828 * and registration/helper functions
1832 * enum wiphy_flags - wiphy capability flags
1834 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1835 * has its own custom regulatory domain and cannot identify the
1836 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1837 * we will disregard the first regulatory hint (when the
1838 * initiator is %REGDOM_SET_BY_CORE).
1839 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1840 * ignore regulatory domain settings until it gets its own regulatory
1841 * domain via its regulatory_hint() unless the regulatory hint is
1842 * from a country IE. After its gets its own regulatory domain it will
1843 * only allow further regulatory domain settings to further enhance
1844 * compliance. For example if channel 13 and 14 are disabled by this
1845 * regulatory domain no user regulatory domain can enable these channels
1846 * at a later time. This can be used for devices which do not have
1847 * calibration information guaranteed for frequencies or settings
1848 * outside of its regulatory domain. If used in combination with
1849 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
1851 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1852 * that passive scan flags and beaconing flags may not be lifted by
1853 * cfg80211 due to regulatory beacon hints. For more information on beacon
1854 * hints read the documenation for regulatory_hint_found_beacon()
1855 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1857 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1858 * by default -- this flag will be set depending on the kernel's default
1859 * on wiphy_new(), but can be changed by the driver if it has a good
1860 * reason to override the default
1861 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1862 * on a VLAN interface)
1863 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1864 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1865 * control port protocol ethertype. The device also honours the
1866 * control_port_no_encrypt flag.
1867 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1868 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
1869 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1870 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1871 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
1873 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1874 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
1875 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
1876 * link setup/discovery operations internally. Setup, discovery and
1877 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
1878 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
1879 * used for asking the driver/firmware to perform a TDLS operation.
1880 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1881 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
1882 * when there are virtual interfaces in AP mode by calling
1883 * cfg80211_report_obss_beacon().
1884 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
1885 * responds to probe-requests in hardware.
1886 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
1887 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
1890 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
1891 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
1892 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
1893 WIPHY_FLAG_NETNS_OK = BIT(3),
1894 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
1895 WIPHY_FLAG_4ADDR_AP = BIT(5),
1896 WIPHY_FLAG_4ADDR_STATION = BIT(6),
1897 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7),
1898 WIPHY_FLAG_IBSS_RSN = BIT(8),
1899 WIPHY_FLAG_MESH_AUTH = BIT(10),
1900 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11),
1901 /* use hole at 12 */
1902 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13),
1903 WIPHY_FLAG_AP_UAPSD = BIT(14),
1904 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15),
1905 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16),
1906 WIPHY_FLAG_HAVE_AP_SME = BIT(17),
1907 WIPHY_FLAG_REPORTS_OBSS = BIT(18),
1908 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
1909 WIPHY_FLAG_OFFCHAN_TX = BIT(20),
1910 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
1914 * struct ieee80211_iface_limit - limit on certain interface types
1915 * @max: maximum number of interfaces of these types
1916 * @types: interface types (bits)
1918 struct ieee80211_iface_limit {
1924 * struct ieee80211_iface_combination - possible interface combination
1925 * @limits: limits for the given interface types
1926 * @n_limits: number of limitations
1927 * @num_different_channels: can use up to this many different channels
1928 * @max_interfaces: maximum number of interfaces in total allowed in this
1930 * @beacon_int_infra_match: In this combination, the beacon intervals
1931 * between infrastructure and AP types must match. This is required
1932 * only in special cases.
1934 * These examples can be expressed as follows:
1936 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
1938 * struct ieee80211_iface_limit limits1[] = {
1939 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1940 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
1942 * struct ieee80211_iface_combination combination1 = {
1943 * .limits = limits1,
1944 * .n_limits = ARRAY_SIZE(limits1),
1945 * .max_interfaces = 2,
1946 * .beacon_int_infra_match = true,
1950 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
1952 * struct ieee80211_iface_limit limits2[] = {
1953 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
1954 * BIT(NL80211_IFTYPE_P2P_GO), },
1956 * struct ieee80211_iface_combination combination2 = {
1957 * .limits = limits2,
1958 * .n_limits = ARRAY_SIZE(limits2),
1959 * .max_interfaces = 8,
1960 * .num_different_channels = 1,
1964 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
1965 * This allows for an infrastructure connection and three P2P connections.
1967 * struct ieee80211_iface_limit limits3[] = {
1968 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
1969 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
1970 * BIT(NL80211_IFTYPE_P2P_CLIENT), },
1972 * struct ieee80211_iface_combination combination3 = {
1973 * .limits = limits3,
1974 * .n_limits = ARRAY_SIZE(limits3),
1975 * .max_interfaces = 4,
1976 * .num_different_channels = 2,
1979 struct ieee80211_iface_combination {
1980 const struct ieee80211_iface_limit *limits;
1981 u32 num_different_channels;
1984 bool beacon_int_infra_match;
1987 struct mac_address {
1991 struct ieee80211_txrx_stypes {
1996 * enum wiphy_wowlan_support_flags - WoWLAN support flags
1997 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
1998 * trigger that keeps the device operating as-is and
1999 * wakes up the host on any activity, for example a
2000 * received packet that passed filtering; note that the
2001 * packet should be preserved in that case
2002 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
2004 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2005 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
2006 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
2007 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
2008 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
2009 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
2011 enum wiphy_wowlan_support_flags {
2012 WIPHY_WOWLAN_ANY = BIT(0),
2013 WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
2014 WIPHY_WOWLAN_DISCONNECT = BIT(2),
2015 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
2016 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
2017 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
2018 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
2019 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
2023 * struct wiphy_wowlan_support - WoWLAN support data
2024 * @flags: see &enum wiphy_wowlan_support_flags
2025 * @n_patterns: number of supported wakeup patterns
2026 * (see nl80211.h for the pattern definition)
2027 * @pattern_max_len: maximum length of each pattern
2028 * @pattern_min_len: minimum length of each pattern
2030 struct wiphy_wowlan_support {
2033 int pattern_max_len;
2034 int pattern_min_len;
2038 * struct wiphy - wireless hardware description
2039 * @reg_notifier: the driver's regulatory notification callback,
2040 * note that if your driver uses wiphy_apply_custom_regulatory()
2041 * the reg_notifier's request can be passed as NULL
2042 * @regd: the driver's regulatory domain, if one was requested via
2043 * the regulatory_hint() API. This can be used by the driver
2044 * on the reg_notifier() if it chooses to ignore future
2045 * regulatory domain changes caused by other drivers.
2046 * @signal_type: signal type reported in &struct cfg80211_bss.
2047 * @cipher_suites: supported cipher suites
2048 * @n_cipher_suites: number of supported cipher suites
2049 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
2050 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
2051 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
2052 * -1 = fragmentation disabled, only odd values >= 256 used
2053 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
2054 * @_net: the network namespace this wiphy currently lives in
2055 * @perm_addr: permanent MAC address of this device
2056 * @addr_mask: If the device supports multiple MAC addresses by masking,
2057 * set this to a mask with variable bits set to 1, e.g. if the last
2058 * four bits are variable then set it to 00:...:00:0f. The actual
2059 * variable bits shall be determined by the interfaces added, with
2060 * interfaces not matching the mask being rejected to be brought up.
2061 * @n_addresses: number of addresses in @addresses.
2062 * @addresses: If the device has more than one address, set this pointer
2063 * to a list of addresses (6 bytes each). The first one will be used
2064 * by default for perm_addr. In this case, the mask should be set to
2065 * all-zeroes. In this case it is assumed that the device can handle
2066 * the same number of arbitrary MAC addresses.
2067 * @registered: protects ->resume and ->suspend sysfs callbacks against
2068 * unregister hardware
2069 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
2070 * automatically on wiphy renames
2071 * @dev: (virtual) struct device for this wiphy
2072 * @registered: helps synchronize suspend/resume with wiphy unregister
2073 * @wext: wireless extension handlers
2074 * @priv: driver private data (sized according to wiphy_new() parameter)
2075 * @interface_modes: bitmask of interfaces types valid for this wiphy,
2076 * must be set by driver
2077 * @iface_combinations: Valid interface combinations array, should not
2078 * list single interface types.
2079 * @n_iface_combinations: number of entries in @iface_combinations array.
2080 * @software_iftypes: bitmask of software interface types, these are not
2081 * subject to any restrictions since they are purely managed in SW.
2082 * @flags: wiphy flags, see &enum wiphy_flags
2083 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
2084 * @bss_priv_size: each BSS struct has private data allocated with it,
2085 * this variable determines its size
2086 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
2088 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
2089 * for in any given scheduled scan
2090 * @max_match_sets: maximum number of match sets the device can handle
2091 * when performing a scheduled scan, 0 if filtering is not
2093 * @max_scan_ie_len: maximum length of user-controlled IEs device can
2094 * add to probe request frames transmitted during a scan, must not
2095 * include fixed IEs like supported rates
2096 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
2098 * @coverage_class: current coverage class
2099 * @fw_version: firmware version for ethtool reporting
2100 * @hw_version: hardware version for ethtool reporting
2101 * @max_num_pmkids: maximum number of PMKIDs supported by device
2102 * @privid: a pointer that drivers can use to identify if an arbitrary
2103 * wiphy is theirs, e.g. in global notifiers
2104 * @bands: information about bands/channels supported by this device
2106 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
2107 * transmitted through nl80211, points to an array indexed by interface
2110 * @available_antennas_tx: bitmap of antennas which are available to be
2111 * configured as TX antennas. Antenna configuration commands will be
2112 * rejected unless this or @available_antennas_rx is set.
2114 * @available_antennas_rx: bitmap of antennas which are available to be
2115 * configured as RX antennas. Antenna configuration commands will be
2116 * rejected unless this or @available_antennas_tx is set.
2118 * @probe_resp_offload:
2119 * Bitmap of supported protocols for probe response offloading.
2120 * See &enum nl80211_probe_resp_offload_support_attr. Only valid
2121 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2123 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
2124 * may request, if implemented.
2126 * @wowlan: WoWLAN support information
2128 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2129 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
2130 * If null, then none can be over-ridden.
2133 /* assign these fields before you register the wiphy */
2135 /* permanent MAC address(es) */
2136 u8 perm_addr[ETH_ALEN];
2137 u8 addr_mask[ETH_ALEN];
2139 struct mac_address *addresses;
2141 const struct ieee80211_txrx_stypes *mgmt_stypes;
2143 const struct ieee80211_iface_combination *iface_combinations;
2144 int n_iface_combinations;
2145 u16 software_iftypes;
2149 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
2150 u16 interface_modes;
2152 u32 flags, features;
2156 enum cfg80211_signal_type signal_type;
2160 u8 max_sched_scan_ssids;
2162 u16 max_scan_ie_len;
2163 u16 max_sched_scan_ie_len;
2165 int n_cipher_suites;
2166 const u32 *cipher_suites;
2174 char fw_version[ETHTOOL_BUSINFO_LEN];
2178 struct wiphy_wowlan_support wowlan;
2181 u16 max_remain_on_channel_duration;
2185 u32 available_antennas_tx;
2186 u32 available_antennas_rx;
2189 * Bitmap of supported protocols for probe response offloading
2190 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
2191 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
2193 u32 probe_resp_offload;
2195 /* If multiple wiphys are registered and you're handed e.g.
2196 * a regular netdev with assigned ieee80211_ptr, you won't
2197 * know whether it points to a wiphy your driver has registered
2198 * or not. Assign this to something global to your driver to
2199 * help determine whether you own this wiphy or not. */
2202 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
2204 /* Lets us get back the wiphy on the callback */
2205 int (*reg_notifier)(struct wiphy *wiphy,
2206 struct regulatory_request *request);
2208 /* fields below are read-only, assigned by cfg80211 */
2210 const struct ieee80211_regdomain *regd;
2212 /* the item in /sys/class/ieee80211/ points to this,
2213 * you need use set_wiphy_dev() (see below) */
2216 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */
2219 /* dir in debugfs: ieee80211/<wiphyname> */
2220 struct dentry *debugfsdir;
2222 const struct ieee80211_ht_cap *ht_capa_mod_mask;
2224 #ifdef CONFIG_NET_NS
2225 /* the network namespace this phy lives in currently */
2229 #ifdef CONFIG_CFG80211_WEXT
2230 const struct iw_handler_def *wext;
2233 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
2236 static inline struct net *wiphy_net(struct wiphy *wiphy)
2238 return read_pnet(&wiphy->_net);
2241 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
2243 write_pnet(&wiphy->_net, net);
2247 * wiphy_priv - return priv from wiphy
2249 * @wiphy: the wiphy whose priv pointer to return
2251 static inline void *wiphy_priv(struct wiphy *wiphy)
2254 return &wiphy->priv;
2258 * priv_to_wiphy - return the wiphy containing the priv
2260 * @priv: a pointer previously returned by wiphy_priv
2262 static inline struct wiphy *priv_to_wiphy(void *priv)
2265 return container_of(priv, struct wiphy, priv);
2269 * set_wiphy_dev - set device pointer for wiphy
2271 * @wiphy: The wiphy whose device to bind
2272 * @dev: The device to parent it to
2274 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
2276 wiphy->dev.parent = dev;
2280 * wiphy_dev - get wiphy dev pointer
2282 * @wiphy: The wiphy whose device struct to look up
2284 static inline struct device *wiphy_dev(struct wiphy *wiphy)
2286 return wiphy->dev.parent;
2290 * wiphy_name - get wiphy name
2292 * @wiphy: The wiphy whose name to return
2294 static inline const char *wiphy_name(const struct wiphy *wiphy)
2296 return dev_name(&wiphy->dev);
2300 * wiphy_new - create a new wiphy for use with cfg80211
2302 * @ops: The configuration operations for this device
2303 * @sizeof_priv: The size of the private area to allocate
2305 * Create a new wiphy and associate the given operations with it.
2306 * @sizeof_priv bytes are allocated for private use.
2308 * The returned pointer must be assigned to each netdev's
2309 * ieee80211_ptr for proper operation.
2311 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
2314 * wiphy_register - register a wiphy with cfg80211
2316 * @wiphy: The wiphy to register.
2318 * Returns a non-negative wiphy index or a negative error code.
2320 extern int wiphy_register(struct wiphy *wiphy);
2323 * wiphy_unregister - deregister a wiphy from cfg80211
2325 * @wiphy: The wiphy to unregister.
2327 * After this call, no more requests can be made with this priv
2328 * pointer, but the call may sleep to wait for an outstanding
2329 * request that is being handled.
2331 extern void wiphy_unregister(struct wiphy *wiphy);
2334 * wiphy_free - free wiphy
2336 * @wiphy: The wiphy to free
2338 extern void wiphy_free(struct wiphy *wiphy);
2340 /* internal structs */
2341 struct cfg80211_conn;
2342 struct cfg80211_internal_bss;
2343 struct cfg80211_cached_keys;
2346 * struct wireless_dev - wireless device state
2348 * For netdevs, this structure must be allocated by the driver
2349 * that uses the ieee80211_ptr field in struct net_device (this
2350 * is intentional so it can be allocated along with the netdev.)
2351 * It need not be registered then as netdev registration will
2352 * be intercepted by cfg80211 to see the new wireless device.
2354 * For non-netdev uses, it must also be allocated by the driver
2355 * in response to the cfg80211 callbacks that require it, as
2356 * there's no netdev registration in that case it may not be
2357 * allocated outside of callback operations that return it.
2359 * @wiphy: pointer to hardware description
2360 * @iftype: interface type
2361 * @list: (private) Used to collect the interfaces
2362 * @netdev: (private) Used to reference back to the netdev, may be %NULL
2363 * @identifier: (private) Identifier used in nl80211 to identify this
2364 * wireless device if it has no netdev
2365 * @current_bss: (private) Used by the internal configuration code
2366 * @channel: (private) Used by the internal configuration code to track
2367 * the user-set AP, monitor and WDS channel
2368 * @preset_chan: (private) Used by the internal configuration code to
2369 * track the channel to be used for AP later
2370 * @preset_chantype: (private) the corresponding channel type
2371 * @bssid: (private) Used by the internal configuration code
2372 * @ssid: (private) Used by the internal configuration code
2373 * @ssid_len: (private) Used by the internal configuration code
2374 * @mesh_id_len: (private) Used by the internal configuration code
2375 * @mesh_id_up_len: (private) Used by the internal configuration code
2376 * @wext: (private) Used by the internal wireless extensions compat code
2377 * @use_4addr: indicates 4addr mode is used on this interface, must be
2378 * set by driver (if supported) on add_interface BEFORE registering the
2379 * netdev and may otherwise be used by driver read-only, will be update
2380 * by cfg80211 on change_interface
2381 * @mgmt_registrations: list of registrations for management frames
2382 * @mgmt_registrations_lock: lock for the list
2383 * @mtx: mutex used to lock data in this struct
2384 * @cleanup_work: work struct used for cleanup that can't be done directly
2385 * @beacon_interval: beacon interval used on this device for transmitting
2386 * beacons, 0 when not valid
2388 struct wireless_dev {
2389 struct wiphy *wiphy;
2390 enum nl80211_iftype iftype;
2392 /* the remainder of this struct should be private to cfg80211 */
2393 struct list_head list;
2394 struct net_device *netdev;
2398 struct list_head mgmt_registrations;
2399 spinlock_t mgmt_registrations_lock;
2403 struct work_struct cleanup_work;
2407 /* currently used for IBSS and SME - might be rearranged later */
2408 u8 ssid[IEEE80211_MAX_SSID_LEN];
2409 u8 ssid_len, mesh_id_len, mesh_id_up_len;
2412 CFG80211_SME_CONNECTING,
2413 CFG80211_SME_CONNECTED,
2415 struct cfg80211_conn *conn;
2416 struct cfg80211_cached_keys *connect_keys;
2418 struct list_head event_list;
2419 spinlock_t event_lock;
2421 struct cfg80211_internal_bss *current_bss; /* associated / joined */
2422 struct ieee80211_channel *preset_chan;
2423 enum nl80211_channel_type preset_chantype;
2425 /* for AP and mesh channel tracking */
2426 struct ieee80211_channel *channel;
2433 int beacon_interval;
2435 u32 ap_unexpected_nlpid;
2437 #ifdef CONFIG_CFG80211_WEXT
2440 struct cfg80211_ibss_params ibss;
2441 struct cfg80211_connect_params connect;
2442 struct cfg80211_cached_keys *keys;
2445 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2446 u8 ssid[IEEE80211_MAX_SSID_LEN];
2447 s8 default_key, default_mgmt_key;
2448 bool prev_bssid_valid;
2454 * wdev_priv - return wiphy priv from wireless_dev
2456 * @wdev: The wireless device whose wiphy's priv pointer to return
2458 static inline void *wdev_priv(struct wireless_dev *wdev)
2461 return wiphy_priv(wdev->wiphy);
2465 * DOC: Utility functions
2467 * cfg80211 offers a number of utility functions that can be useful.
2471 * ieee80211_channel_to_frequency - convert channel number to frequency
2472 * @chan: channel number
2473 * @band: band, necessary due to channel number overlap
2475 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
2478 * ieee80211_frequency_to_channel - convert frequency to channel number
2479 * @freq: center frequency
2481 extern int ieee80211_frequency_to_channel(int freq);
2484 * Name indirection necessary because the ieee80211 code also has
2485 * a function named "ieee80211_get_channel", so if you include
2486 * cfg80211's header file you get cfg80211's version, if you try
2487 * to include both header files you'll (rightfully!) get a symbol
2490 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
2493 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
2494 * @wiphy: the struct wiphy to get the channel for
2495 * @freq: the center frequency of the channel
2497 static inline struct ieee80211_channel *
2498 ieee80211_get_channel(struct wiphy *wiphy, int freq)
2500 return __ieee80211_get_channel(wiphy, freq);
2504 * ieee80211_get_response_rate - get basic rate for a given rate
2506 * @sband: the band to look for rates in
2507 * @basic_rates: bitmap of basic rates
2508 * @bitrate: the bitrate for which to find the basic rate
2510 * This function returns the basic rate corresponding to a given
2511 * bitrate, that is the next lower bitrate contained in the basic
2512 * rate map, which is, for this function, given as a bitmap of
2513 * indices of rates in the band's bitrate table.
2515 struct ieee80211_rate *
2516 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
2517 u32 basic_rates, int bitrate);
2520 * Radiotap parsing functions -- for controlled injection support
2522 * Implemented in net/wireless/radiotap.c
2523 * Documentation in Documentation/networking/radiotap-headers.txt
2526 struct radiotap_align_size {
2527 uint8_t align:4, size:4;
2530 struct ieee80211_radiotap_namespace {
2531 const struct radiotap_align_size *align_size;
2537 struct ieee80211_radiotap_vendor_namespaces {
2538 const struct ieee80211_radiotap_namespace *ns;
2543 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
2544 * @this_arg_index: index of current arg, valid after each successful call
2545 * to ieee80211_radiotap_iterator_next()
2546 * @this_arg: pointer to current radiotap arg; it is valid after each
2547 * call to ieee80211_radiotap_iterator_next() but also after
2548 * ieee80211_radiotap_iterator_init() where it will point to
2549 * the beginning of the actual data portion
2550 * @this_arg_size: length of the current arg, for convenience
2551 * @current_namespace: pointer to the current namespace definition
2552 * (or internally %NULL if the current namespace is unknown)
2553 * @is_radiotap_ns: indicates whether the current namespace is the default
2554 * radiotap namespace or not
2556 * @_rtheader: pointer to the radiotap header we are walking through
2557 * @_max_length: length of radiotap header in cpu byte ordering
2558 * @_arg_index: next argument index
2559 * @_arg: next argument pointer
2560 * @_next_bitmap: internal pointer to next present u32
2561 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
2562 * @_vns: vendor namespace definitions
2563 * @_next_ns_data: beginning of the next namespace's data
2564 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
2567 * Describes the radiotap parser state. Fields prefixed with an underscore
2568 * must not be used by users of the parser, only by the parser internally.
2571 struct ieee80211_radiotap_iterator {
2572 struct ieee80211_radiotap_header *_rtheader;
2573 const struct ieee80211_radiotap_vendor_namespaces *_vns;
2574 const struct ieee80211_radiotap_namespace *current_namespace;
2576 unsigned char *_arg, *_next_ns_data;
2577 __le32 *_next_bitmap;
2579 unsigned char *this_arg;
2587 uint32_t _bitmap_shifter;
2591 extern int ieee80211_radiotap_iterator_init(
2592 struct ieee80211_radiotap_iterator *iterator,
2593 struct ieee80211_radiotap_header *radiotap_header,
2594 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
2596 extern int ieee80211_radiotap_iterator_next(
2597 struct ieee80211_radiotap_iterator *iterator);
2600 extern const unsigned char rfc1042_header[6];
2601 extern const unsigned char bridge_tunnel_header[6];
2604 * ieee80211_get_hdrlen_from_skb - get header length from data
2606 * Given an skb with a raw 802.11 header at the data pointer this function
2607 * returns the 802.11 header length in bytes (not including encryption
2608 * headers). If the data in the sk_buff is too short to contain a valid 802.11
2609 * header the function returns 0.
2613 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
2616 * ieee80211_hdrlen - get header length in bytes from frame control
2617 * @fc: frame control field in little-endian format
2619 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2622 * DOC: Data path helpers
2624 * In addition to generic utilities, cfg80211 also offers
2625 * functions that help implement the data path for devices
2626 * that do not do the 802.11/802.3 conversion on the device.
2630 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
2631 * @skb: the 802.11 data frame
2632 * @addr: the device MAC address
2633 * @iftype: the virtual interface type
2635 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2636 enum nl80211_iftype iftype);
2639 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
2640 * @skb: the 802.3 frame
2641 * @addr: the device MAC address
2642 * @iftype: the virtual interface type
2643 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
2644 * @qos: build 802.11 QoS data frame
2646 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2647 enum nl80211_iftype iftype, u8 *bssid, bool qos);
2650 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
2652 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
2653 * 802.3 frames. The @list will be empty if the decode fails. The
2654 * @skb is consumed after the function returns.
2656 * @skb: The input IEEE 802.11n A-MSDU frame.
2657 * @list: The output list of 802.3 frames. It must be allocated and
2658 * initialized by by the caller.
2659 * @addr: The device MAC address.
2660 * @iftype: The device interface type.
2661 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2662 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
2664 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
2665 const u8 *addr, enum nl80211_iftype iftype,
2666 const unsigned int extra_headroom,
2667 bool has_80211_header);
2670 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
2671 * @skb: the data frame
2673 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
2676 * cfg80211_find_ie - find information element in data
2679 * @ies: data consisting of IEs
2680 * @len: length of data
2682 * This function will return %NULL if the element ID could
2683 * not be found or if the element is invalid (claims to be
2684 * longer than the given data), or a pointer to the first byte
2685 * of the requested element, that is the byte containing the
2686 * element ID. There are no checks on the element length
2687 * other than having to fit into the given data.
2689 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
2692 * cfg80211_find_vendor_ie - find vendor specific information element in data
2695 * @oui_type: vendor-specific OUI type
2696 * @ies: data consisting of IEs
2697 * @len: length of data
2699 * This function will return %NULL if the vendor specific element ID
2700 * could not be found or if the element is invalid (claims to be
2701 * longer than the given data), or a pointer to the first byte
2702 * of the requested element, that is the byte containing the
2703 * element ID. There are no checks on the element length
2704 * other than having to fit into the given data.
2706 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
2707 const u8 *ies, int len);
2710 * DOC: Regulatory enforcement infrastructure
2716 * regulatory_hint - driver hint to the wireless core a regulatory domain
2717 * @wiphy: the wireless device giving the hint (used only for reporting
2719 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
2720 * should be in. If @rd is set this should be NULL. Note that if you
2721 * set this to NULL you should still set rd->alpha2 to some accepted
2724 * Wireless drivers can use this function to hint to the wireless core
2725 * what it believes should be the current regulatory domain by
2726 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
2727 * domain should be in or by providing a completely build regulatory domain.
2728 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
2729 * for a regulatory domain structure for the respective country.
2731 * The wiphy must have been registered to cfg80211 prior to this call.
2732 * For cfg80211 drivers this means you must first use wiphy_register(),
2733 * for mac80211 drivers you must first use ieee80211_register_hw().
2735 * Drivers should check the return value, its possible you can get
2738 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
2741 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2742 * @wiphy: the wireless device we want to process the regulatory domain on
2743 * @regd: the custom regulatory domain to use for this wiphy
2745 * Drivers can sometimes have custom regulatory domains which do not apply
2746 * to a specific country. Drivers can use this to apply such custom regulatory
2747 * domains. This routine must be called prior to wiphy registration. The
2748 * custom regulatory domain will be trusted completely and as such previous
2749 * default channel settings will be disregarded. If no rule is found for a
2750 * channel on the regulatory domain the channel will be disabled.
2752 extern void wiphy_apply_custom_regulatory(
2753 struct wiphy *wiphy,
2754 const struct ieee80211_regdomain *regd);
2757 * freq_reg_info - get regulatory information for the given frequency
2758 * @wiphy: the wiphy for which we want to process this rule for
2759 * @center_freq: Frequency in KHz for which we want regulatory information for
2760 * @desired_bw_khz: the desired max bandwidth you want to use per
2761 * channel. Note that this is still 20 MHz if you want to use HT40
2762 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2763 * If set to 0 we'll assume you want the standard 20 MHz.
2764 * @reg_rule: the regulatory rule which we have for this frequency
2766 * Use this function to get the regulatory rule for a specific frequency on
2767 * a given wireless device. If the device has a specific regulatory domain
2768 * it wants to follow we respect that unless a country IE has been received
2769 * and processed already.
2771 * Returns 0 if it was able to find a valid regulatory rule which does
2772 * apply to the given center_freq otherwise it returns non-zero. It will
2773 * also return -ERANGE if we determine the given center_freq does not even have
2774 * a regulatory rule for a frequency range in the center_freq's band. See
2775 * freq_in_rule_band() for our current definition of a band -- this is purely
2776 * subjective and right now its 802.11 specific.
2778 extern int freq_reg_info(struct wiphy *wiphy,
2781 const struct ieee80211_reg_rule **reg_rule);
2784 * callbacks for asynchronous cfg80211 methods, notification
2785 * functions and BSS handling helpers
2789 * cfg80211_scan_done - notify that scan finished
2791 * @request: the corresponding scan request
2792 * @aborted: set to true if the scan was aborted for any reason,
2793 * userspace will be notified of that
2795 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
2798 * cfg80211_sched_scan_results - notify that new scan results are available
2800 * @wiphy: the wiphy which got scheduled scan results
2802 void cfg80211_sched_scan_results(struct wiphy *wiphy);
2805 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
2807 * @wiphy: the wiphy on which the scheduled scan stopped
2809 * The driver can call this function to inform cfg80211 that the
2810 * scheduled scan had to be stopped, for whatever reason. The driver
2811 * is then called back via the sched_scan_stop operation when done.
2813 void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
2816 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2818 * @wiphy: the wiphy reporting the BSS
2819 * @channel: The channel the frame was received on
2820 * @mgmt: the management frame (probe response or beacon)
2821 * @len: length of the management frame
2822 * @signal: the signal strength, type depends on the wiphy's signal_type
2823 * @gfp: context flags
2825 * This informs cfg80211 that BSS information was found and
2826 * the BSS should be updated/added.
2828 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2830 struct cfg80211_bss * __must_check
2831 cfg80211_inform_bss_frame(struct wiphy *wiphy,
2832 struct ieee80211_channel *channel,
2833 struct ieee80211_mgmt *mgmt, size_t len,
2834 s32 signal, gfp_t gfp);
2837 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2839 * @wiphy: the wiphy reporting the BSS
2840 * @channel: The channel the frame was received on
2841 * @bssid: the BSSID of the BSS
2842 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
2843 * @capability: the capability field sent by the peer
2844 * @beacon_interval: the beacon interval announced by the peer
2845 * @ie: additional IEs sent by the peer
2846 * @ielen: length of the additional IEs
2847 * @signal: the signal strength, type depends on the wiphy's signal_type
2848 * @gfp: context flags
2850 * This informs cfg80211 that BSS information was found and
2851 * the BSS should be updated/added.
2853 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2855 struct cfg80211_bss * __must_check
2856 cfg80211_inform_bss(struct wiphy *wiphy,
2857 struct ieee80211_channel *channel,
2858 const u8 *bssid, u64 tsf, u16 capability,
2859 u16 beacon_interval, const u8 *ie, size_t ielen,
2860 s32 signal, gfp_t gfp);
2862 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
2863 struct ieee80211_channel *channel,
2865 const u8 *ssid, size_t ssid_len,
2866 u16 capa_mask, u16 capa_val);
2867 static inline struct cfg80211_bss *
2868 cfg80211_get_ibss(struct wiphy *wiphy,
2869 struct ieee80211_channel *channel,
2870 const u8 *ssid, size_t ssid_len)
2872 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
2873 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
2876 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
2877 struct ieee80211_channel *channel,
2878 const u8 *meshid, size_t meshidlen,
2881 * cfg80211_ref_bss - reference BSS struct
2882 * @bss: the BSS struct to reference
2884 * Increments the refcount of the given BSS struct.
2886 void cfg80211_ref_bss(struct cfg80211_bss *bss);
2889 * cfg80211_put_bss - unref BSS struct
2890 * @bss: the BSS struct
2892 * Decrements the refcount of the given BSS struct.
2894 void cfg80211_put_bss(struct cfg80211_bss *bss);
2897 * cfg80211_unlink_bss - unlink BSS from internal data structures
2899 * @bss: the bss to remove
2901 * This function removes the given BSS from the internal data structures
2902 * thereby making it no longer show up in scan results etc. Use this
2903 * function when you detect a BSS is gone. Normally BSSes will also time
2904 * out, so it is not necessary to use this function at all.
2906 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
2909 * cfg80211_send_rx_auth - notification of processed authentication
2910 * @dev: network device
2911 * @buf: authentication frame (header + body)
2912 * @len: length of the frame data
2914 * This function is called whenever an authentication has been processed in
2915 * station mode. The driver is required to call either this function or
2916 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2917 * call. This function may sleep.
2919 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2922 * cfg80211_send_auth_timeout - notification of timed out authentication
2923 * @dev: network device
2924 * @addr: The MAC address of the device with which the authentication timed out
2926 * This function may sleep.
2928 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2931 * cfg80211_send_rx_assoc - notification of processed association
2932 * @dev: network device
2933 * @bss: the BSS struct association was requested for, the struct reference
2934 * is owned by cfg80211 after this call
2935 * @buf: (re)association response frame (header + body)
2936 * @len: length of the frame data
2938 * This function is called whenever a (re)association response has been
2939 * processed in station mode. The driver is required to call either this
2940 * function or cfg80211_send_assoc_timeout() to indicate the result of
2941 * cfg80211_ops::assoc() call. This function may sleep.
2943 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
2944 const u8 *buf, size_t len);
2947 * cfg80211_send_assoc_timeout - notification of timed out association
2948 * @dev: network device
2949 * @addr: The MAC address of the device with which the association timed out
2951 * This function may sleep.
2953 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2956 * cfg80211_send_deauth - notification of processed deauthentication
2957 * @dev: network device
2958 * @buf: deauthentication frame (header + body)
2959 * @len: length of the frame data
2961 * This function is called whenever deauthentication has been processed in
2962 * station mode. This includes both received deauthentication frames and
2963 * locally generated ones. This function may sleep.
2965 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2968 * __cfg80211_send_deauth - notification of processed deauthentication
2969 * @dev: network device
2970 * @buf: deauthentication frame (header + body)
2971 * @len: length of the frame data
2973 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2975 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2978 * cfg80211_send_disassoc - notification of processed disassociation
2979 * @dev: network device
2980 * @buf: disassociation response frame (header + body)
2981 * @len: length of the frame data
2983 * This function is called whenever disassociation has been processed in
2984 * station mode. This includes both received disassociation frames and locally
2985 * generated ones. This function may sleep.
2987 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
2990 * __cfg80211_send_disassoc - notification of processed disassociation
2991 * @dev: network device
2992 * @buf: disassociation response frame (header + body)
2993 * @len: length of the frame data
2995 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2997 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
3001 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
3002 * @dev: network device
3003 * @buf: deauthentication frame (header + body)
3004 * @len: length of the frame data
3006 * This function is called whenever a received Deauthentication frame has been
3007 * dropped in station mode because of MFP being used but the Deauthentication
3008 * frame was not protected. This function may sleep.
3010 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
3014 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
3015 * @dev: network device
3016 * @buf: disassociation frame (header + body)
3017 * @len: length of the frame data
3019 * This function is called whenever a received Disassociation frame has been
3020 * dropped in station mode because of MFP being used but the Disassociation
3021 * frame was not protected. This function may sleep.
3023 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
3027 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
3028 * @dev: network device
3029 * @addr: The source MAC address of the frame
3030 * @key_type: The key type that the received frame used
3031 * @key_id: Key identifier (0..3). Can be -1 if missing.
3032 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3033 * @gfp: allocation flags
3035 * This function is called whenever the local MAC detects a MIC failure in a
3036 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
3039 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
3040 enum nl80211_key_type key_type, int key_id,
3041 const u8 *tsc, gfp_t gfp);
3044 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
3046 * @dev: network device
3047 * @bssid: the BSSID of the IBSS joined
3048 * @gfp: allocation flags
3050 * This function notifies cfg80211 that the device joined an IBSS or
3051 * switched to a different BSSID. Before this function can be called,
3052 * either a beacon has to have been received from the IBSS, or one of
3053 * the cfg80211_inform_bss{,_frame} functions must have been called
3054 * with the locally generated beacon -- this guarantees that there is
3055 * always a scan result for this IBSS. cfg80211 will handle the rest.
3057 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
3060 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
3062 * @dev: network device
3063 * @macaddr: the MAC address of the new candidate
3064 * @ie: information elements advertised by the peer candidate
3065 * @ie_len: lenght of the information elements buffer
3066 * @gfp: allocation flags
3068 * This function notifies cfg80211 that the mesh peer candidate has been
3069 * detected, most likely via a beacon or, less likely, via a probe response.
3070 * cfg80211 then sends a notification to userspace.
3072 void cfg80211_notify_new_peer_candidate(struct net_device *dev,
3073 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);
3076 * DOC: RFkill integration
3078 * RFkill integration in cfg80211 is almost invisible to drivers,
3079 * as cfg80211 automatically registers an rfkill instance for each
3080 * wireless device it knows about. Soft kill is also translated
3081 * into disconnecting and turning all interfaces off, drivers are
3082 * expected to turn off the device when all interfaces are down.
3084 * However, devices may have a hard RFkill line, in which case they
3085 * also need to interact with the rfkill subsystem, via cfg80211.
3086 * They can do this with a few helper functions documented here.
3090 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
3092 * @blocked: block status
3094 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
3097 * wiphy_rfkill_start_polling - start polling rfkill
3100 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
3103 * wiphy_rfkill_stop_polling - stop polling rfkill
3106 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
3108 #ifdef CONFIG_NL80211_TESTMODE
3112 * Test mode is a set of utility functions to allow drivers to
3113 * interact with driver-specific tools to aid, for instance,
3114 * factory programming.
3116 * This chapter describes how drivers interact with it, for more
3117 * information see the nl80211 book's chapter on it.
3121 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
3123 * @approxlen: an upper bound of the length of the data that will
3124 * be put into the skb
3126 * This function allocates and pre-fills an skb for a reply to
3127 * the testmode command. Since it is intended for a reply, calling
3128 * it outside of the @testmode_cmd operation is invalid.
3130 * The returned skb (or %NULL if any errors happen) is pre-filled
3131 * with the wiphy index and set up in a way that any data that is
3132 * put into the skb (with skb_put(), nla_put() or similar) will end
3133 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
3134 * needs to be done with the skb is adding data for the corresponding
3135 * userspace tool which can then read that data out of the testdata
3136 * attribute. You must not modify the skb in any other way.
3138 * When done, call cfg80211_testmode_reply() with the skb and return
3139 * its error code as the result of the @testmode_cmd operation.
3141 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3145 * cfg80211_testmode_reply - send the reply skb
3146 * @skb: The skb, must have been allocated with
3147 * cfg80211_testmode_alloc_reply_skb()
3149 * Returns an error code or 0 on success, since calling this
3150 * function will usually be the last thing before returning
3151 * from the @testmode_cmd you should return the error code.
3152 * Note that this function consumes the skb regardless of the
3155 int cfg80211_testmode_reply(struct sk_buff *skb);
3158 * cfg80211_testmode_alloc_event_skb - allocate testmode event
3160 * @approxlen: an upper bound of the length of the data that will
3161 * be put into the skb
3162 * @gfp: allocation flags
3164 * This function allocates and pre-fills an skb for an event on the
3165 * testmode multicast group.
3167 * The returned skb (or %NULL if any errors happen) is set up in the
3168 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
3169 * for an event. As there, you should simply add data to it that will
3170 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
3171 * not modify the skb in any other way.
3173 * When done filling the skb, call cfg80211_testmode_event() with the
3174 * skb to send the event.
3176 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3177 int approxlen, gfp_t gfp);
3180 * cfg80211_testmode_event - send the event
3181 * @skb: The skb, must have been allocated with
3182 * cfg80211_testmode_alloc_event_skb()
3183 * @gfp: allocation flags
3185 * This function sends the given @skb, which must have been allocated
3186 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
3189 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
3191 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
3192 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
3194 #define CFG80211_TESTMODE_CMD(cmd)
3195 #define CFG80211_TESTMODE_DUMP(cmd)
3199 * cfg80211_connect_result - notify cfg80211 of connection result
3201 * @dev: network device
3202 * @bssid: the BSSID of the AP
3203 * @req_ie: association request IEs (maybe be %NULL)
3204 * @req_ie_len: association request IEs length
3205 * @resp_ie: association response IEs (may be %NULL)
3206 * @resp_ie_len: assoc response IEs length
3207 * @status: status code, 0 for successful connection, use
3208 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
3209 * the real status code for failures.
3210 * @gfp: allocation flags
3212 * It should be called by the underlying driver whenever connect() has
3215 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
3216 const u8 *req_ie, size_t req_ie_len,
3217 const u8 *resp_ie, size_t resp_ie_len,
3218 u16 status, gfp_t gfp);
3221 * cfg80211_roamed - notify cfg80211 of roaming
3223 * @dev: network device
3224 * @channel: the channel of the new AP
3225 * @bssid: the BSSID of the new AP
3226 * @req_ie: association request IEs (maybe be %NULL)
3227 * @req_ie_len: association request IEs length
3228 * @resp_ie: association response IEs (may be %NULL)
3229 * @resp_ie_len: assoc response IEs length
3230 * @gfp: allocation flags
3232 * It should be called by the underlying driver whenever it roamed
3233 * from one AP to another while connected.
3235 void cfg80211_roamed(struct net_device *dev,
3236 struct ieee80211_channel *channel,
3238 const u8 *req_ie, size_t req_ie_len,
3239 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3242 * cfg80211_roamed_bss - notify cfg80211 of roaming
3244 * @dev: network device
3245 * @bss: entry of bss to which STA got roamed
3246 * @req_ie: association request IEs (maybe be %NULL)
3247 * @req_ie_len: association request IEs length
3248 * @resp_ie: association response IEs (may be %NULL)
3249 * @resp_ie_len: assoc response IEs length
3250 * @gfp: allocation flags
3252 * This is just a wrapper to notify cfg80211 of roaming event with driver
3253 * passing bss to avoid a race in timeout of the bss entry. It should be
3254 * called by the underlying driver whenever it roamed from one AP to another
3255 * while connected. Drivers which have roaming implemented in firmware
3256 * may use this function to avoid a race in bss entry timeout where the bss
3257 * entry of the new AP is seen in the driver, but gets timed out by the time
3258 * it is accessed in __cfg80211_roamed() due to delay in scheduling
3259 * rdev->event_work. In case of any failures, the reference is released
3260 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
3261 * it will be released while diconneting from the current bss.
3263 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
3264 const u8 *req_ie, size_t req_ie_len,
3265 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
3268 * cfg80211_disconnected - notify cfg80211 that connection was dropped
3270 * @dev: network device
3271 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
3272 * @ie_len: length of IEs
3273 * @reason: reason code for the disconnection, set it to 0 if unknown
3274 * @gfp: allocation flags
3276 * After it calls this function, the driver should enter an idle state
3277 * and not try to connect to any AP any more.
3279 void cfg80211_disconnected(struct net_device *dev, u16 reason,
3280 u8 *ie, size_t ie_len, gfp_t gfp);
3283 * cfg80211_ready_on_channel - notification of remain_on_channel start
3284 * @wdev: wireless device
3285 * @cookie: the request cookie
3286 * @chan: The current channel (from remain_on_channel request)
3287 * @channel_type: Channel type
3288 * @duration: Duration in milliseconds that the driver intents to remain on the
3290 * @gfp: allocation flags
3292 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
3293 struct ieee80211_channel *chan,
3294 enum nl80211_channel_type channel_type,
3295 unsigned int duration, gfp_t gfp);
3298 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
3299 * @wdev: wireless device
3300 * @cookie: the request cookie
3301 * @chan: The current channel (from remain_on_channel request)
3302 * @channel_type: Channel type
3303 * @gfp: allocation flags
3305 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
3306 struct ieee80211_channel *chan,
3307 enum nl80211_channel_type channel_type,
3312 * cfg80211_new_sta - notify userspace about station
3315 * @mac_addr: the station's address
3316 * @sinfo: the station information
3317 * @gfp: allocation flags
3319 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
3320 struct station_info *sinfo, gfp_t gfp);
3323 * cfg80211_del_sta - notify userspace about deletion of a station
3326 * @mac_addr: the station's address
3327 * @gfp: allocation flags
3329 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);
3332 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3333 * @wdev: wireless device receiving the frame
3334 * @freq: Frequency on which the frame was received in MHz
3335 * @sig_dbm: signal strength in mBm, or 0 if unknown
3336 * @buf: Management frame (header + body)
3337 * @len: length of the frame data
3338 * @gfp: context flags
3340 * Returns %true if a user space application has registered for this frame.
3341 * For action frames, that makes it responsible for rejecting unrecognized
3342 * action frames; %false otherwise, in which case for action frames the
3343 * driver is responsible for rejecting the frame.
3345 * This function is called whenever an Action frame is received for a station
3346 * mode interface, but is not processed in kernel.
3348 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
3349 const u8 *buf, size_t len, gfp_t gfp);
3352 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3353 * @wdev: wireless device receiving the frame
3354 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
3355 * @buf: Management frame (header + body)
3356 * @len: length of the frame data
3357 * @ack: Whether frame was acknowledged
3358 * @gfp: context flags
3360 * This function is called whenever a management frame was requested to be
3361 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3362 * transmission attempt.
3364 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
3365 const u8 *buf, size_t len, bool ack, gfp_t gfp);
3369 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
3370 * @dev: network device
3371 * @rssi_event: the triggered RSSI event
3372 * @gfp: context flags
3374 * This function is called when a configured connection quality monitoring
3375 * rssi threshold reached event occurs.
3377 void cfg80211_cqm_rssi_notify(struct net_device *dev,
3378 enum nl80211_cqm_rssi_threshold_event rssi_event,
3382 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
3383 * @dev: network device
3384 * @peer: peer's MAC address
3385 * @num_packets: how many packets were lost -- should be a fixed threshold
3386 * but probably no less than maybe 50, or maybe a throughput dependent
3387 * threshold (to account for temporary interference)
3388 * @gfp: context flags
3390 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
3391 const u8 *peer, u32 num_packets, gfp_t gfp);
3394 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
3395 * @dev: network device
3396 * @bssid: BSSID of AP (to avoid races)
3397 * @replay_ctr: new replay counter
3398 * @gfp: allocation flags
3400 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
3401 const u8 *replay_ctr, gfp_t gfp);
3404 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
3405 * @dev: network device
3406 * @index: candidate index (the smaller the index, the higher the priority)
3407 * @bssid: BSSID of AP
3408 * @preauth: Whether AP advertises support for RSN pre-authentication
3409 * @gfp: allocation flags
3411 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
3412 const u8 *bssid, bool preauth, gfp_t gfp);
3415 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
3416 * @dev: The device the frame matched to
3417 * @addr: the transmitter address
3418 * @gfp: context flags
3420 * This function is used in AP mode (only!) to inform userspace that
3421 * a spurious class 3 frame was received, to be able to deauth the
3423 * Returns %true if the frame was passed to userspace (or this failed
3424 * for a reason other than not having a subscription.)
3426 bool cfg80211_rx_spurious_frame(struct net_device *dev,
3427 const u8 *addr, gfp_t gfp);
3430 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
3431 * @dev: The device the frame matched to
3432 * @addr: the transmitter address
3433 * @gfp: context flags
3435 * This function is used in AP mode (only!) to inform userspace that
3436 * an associated station sent a 4addr frame but that wasn't expected.
3437 * It is allowed and desirable to send this event only once for each
3438 * station to avoid event flooding.
3439 * Returns %true if the frame was passed to userspace (or this failed
3440 * for a reason other than not having a subscription.)
3442 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
3443 const u8 *addr, gfp_t gfp);
3446 * cfg80211_probe_status - notify userspace about probe status
3447 * @dev: the device the probe was sent on
3448 * @addr: the address of the peer
3449 * @cookie: the cookie filled in @probe_client previously
3450 * @acked: indicates whether probe was acked or not
3451 * @gfp: allocation flags
3453 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
3454 u64 cookie, bool acked, gfp_t gfp);
3457 * cfg80211_report_obss_beacon - report beacon from other APs
3458 * @wiphy: The wiphy that received the beacon
3460 * @len: length of the frame
3461 * @freq: frequency the frame was received on
3462 * @sig_dbm: signal strength in mBm, or 0 if unknown
3463 * @gfp: allocation flags
3465 * Use this function to report to userspace when a beacon was
3466 * received. It is not useful to call this when there is no
3467 * netdev that is in AP/GO mode.
3469 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
3470 const u8 *frame, size_t len,
3471 int freq, int sig_dbm, gfp_t gfp);
3474 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
3476 * @chan: main channel
3477 * @channel_type: HT mode
3479 * This function returns true if there is no secondary channel or the secondary
3480 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3482 bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
3483 struct ieee80211_channel *chan,
3484 enum nl80211_channel_type channel_type);
3487 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
3488 * @dev: the device which switched channels
3489 * @freq: new channel frequency (in MHz)
3490 * @type: channel type
3492 * Acquires wdev_lock, so must only be called from sleepable driver context!
3494 void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
3495 enum nl80211_channel_type type);
3498 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
3499 * @rate: given rate_info to calculate bitrate from
3501 * return 0 if MCS index >= 32
3503 u32 cfg80211_calculate_bitrate(struct rate_info *rate);
3505 /* Logging, debugging and troubleshooting/diagnostic helpers. */
3507 /* wiphy_printk helpers, similar to dev_printk */
3509 #define wiphy_printk(level, wiphy, format, args...) \
3510 dev_printk(level, &(wiphy)->dev, format, ##args)
3511 #define wiphy_emerg(wiphy, format, args...) \
3512 dev_emerg(&(wiphy)->dev, format, ##args)
3513 #define wiphy_alert(wiphy, format, args...) \
3514 dev_alert(&(wiphy)->dev, format, ##args)
3515 #define wiphy_crit(wiphy, format, args...) \
3516 dev_crit(&(wiphy)->dev, format, ##args)
3517 #define wiphy_err(wiphy, format, args...) \
3518 dev_err(&(wiphy)->dev, format, ##args)
3519 #define wiphy_warn(wiphy, format, args...) \
3520 dev_warn(&(wiphy)->dev, format, ##args)
3521 #define wiphy_notice(wiphy, format, args...) \
3522 dev_notice(&(wiphy)->dev, format, ##args)
3523 #define wiphy_info(wiphy, format, args...) \
3524 dev_info(&(wiphy)->dev, format, ##args)
3526 #define wiphy_debug(wiphy, format, args...) \
3527 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3529 #define wiphy_dbg(wiphy, format, args...) \
3530 dev_dbg(&(wiphy)->dev, format, ##args)
3532 #if defined(VERBOSE_DEBUG)
3533 #define wiphy_vdbg wiphy_dbg
3535 #define wiphy_vdbg(wiphy, format, args...) \
3538 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
3544 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
3545 * of using a WARN/WARN_ON to get the message out, including the
3546 * file/line information and a backtrace.
3548 #define wiphy_WARN(wiphy, format, args...) \
3549 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
3551 #endif /* __NET_CFG80211_H */