1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/netlink.h>
17 #include <linux/skbuff.h>
18 #include <linux/nl80211.h>
19 #include <linux/if_ether.h>
20 #include <linux/ieee80211.h>
21 #include <net/regulatory.h>
23 /* remove once we remove the wext stuff */
24 #include <net/iw_handler.h>
25 #include <linux/wireless.h>
31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
32 * userspace and drivers, and offers some utility functionality associated
33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
34 * by all modern wireless drivers in Linux, so that they offer a consistent
35 * API through nl80211. For backward compatibility, cfg80211 also offers
36 * wireless extensions to userspace, but hides them from drivers completely.
38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
44 * DOC: Device registration
46 * In order for a driver to use cfg80211, it must register the hardware device
47 * with cfg80211. This happens through a number of hardware capability structs
50 * The fundamental structure for each device is the 'wiphy', of which each
51 * instance describes a physical wireless device connected to the system. Each
52 * such wiphy can have zero, one, or many virtual interfaces associated with
53 * it, which need to be identified as such by pointing the network interface's
54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
55 * the wireless part of the interface, normally this struct is embedded in the
56 * network interface's private data area. Drivers can optionally allow creating
57 * or destroying virtual interfaces on the fly, but without at least one or the
58 * ability to create some the wireless device isn't useful.
60 * Each wiphy structure contains device capability information, and also has
61 * a pointer to the various operations the driver offers. The definitions and
62 * structures here describe these capabilities in detail.
66 * wireless hardware capability structures
70 * enum ieee80211_band - supported frequency bands
72 * The bands are assigned this way because the supported
73 * bitrates differ in these bands.
75 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
76 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
77 * @IEEE80211_NUM_BANDS: number of defined bands
80 IEEE80211_BAND_2GHZ
= NL80211_BAND_2GHZ
,
81 IEEE80211_BAND_5GHZ
= NL80211_BAND_5GHZ
,
88 * enum ieee80211_channel_flags - channel flags
90 * Channel flags set by the regulatory control code.
92 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
93 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
95 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
96 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
97 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
99 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
102 enum ieee80211_channel_flags
{
103 IEEE80211_CHAN_DISABLED
= 1<<0,
104 IEEE80211_CHAN_PASSIVE_SCAN
= 1<<1,
105 IEEE80211_CHAN_NO_IBSS
= 1<<2,
106 IEEE80211_CHAN_RADAR
= 1<<3,
107 IEEE80211_CHAN_NO_HT40PLUS
= 1<<4,
108 IEEE80211_CHAN_NO_HT40MINUS
= 1<<5,
111 #define IEEE80211_CHAN_NO_HT40 \
112 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
115 * struct ieee80211_channel - channel definition
117 * This structure describes a single channel for use
120 * @center_freq: center frequency in MHz
121 * @hw_value: hardware-specific value for the channel
122 * @flags: channel flags from &enum ieee80211_channel_flags.
123 * @orig_flags: channel flags at registration time, used by regulatory
124 * code to support devices with additional restrictions
125 * @band: band this channel belongs to.
126 * @max_antenna_gain: maximum antenna gain in dBi
127 * @max_power: maximum transmission power (in dBm)
128 * @beacon_found: helper to regulatory code to indicate when a beacon
129 * has been found on this channel. Use regulatory_hint_found_beacon()
130 * to enable this, this is useful only on 5 GHz band.
131 * @orig_mag: internal use
132 * @orig_mpwr: internal use
134 struct ieee80211_channel
{
135 enum ieee80211_band band
;
139 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_supported_band - frequency band definition
218 * This structure describes a frequency band a wiphy
219 * is able to operate in.
221 * @channels: Array of channels the hardware can operate in
223 * @band: the band this structure represents
224 * @n_channels: Number of channels in @channels
225 * @bitrates: Array of bitrates the hardware can operate with
226 * in this band. Must be sorted to give a valid "supported
227 * rates" IE, i.e. CCK rates first, then OFDM.
228 * @n_bitrates: Number of bitrates in @bitrates
229 * @ht_cap: HT capabilities in this band
231 struct ieee80211_supported_band
{
232 struct ieee80211_channel
*channels
;
233 struct ieee80211_rate
*bitrates
;
234 enum ieee80211_band band
;
237 struct ieee80211_sta_ht_cap ht_cap
;
241 * Wireless hardware/device configuration structures and methods
245 * DOC: Actions and configuration
247 * Each wireless device and each virtual interface offer a set of configuration
248 * operations and other actions that are invoked by userspace. Each of these
249 * actions is described in the operations structure, and the parameters these
250 * operations use are described separately.
252 * Additionally, some operations are asynchronous and expect to get status
253 * information via some functions that drivers need to call.
255 * Scanning and BSS list handling with its associated functionality is described
256 * in a separate chapter.
260 * struct vif_params - describes virtual interface parameters
261 * @use_4addr: use 4-address frames
268 * struct key_params - key information
270 * Information about a key
273 * @key_len: length of key material
274 * @cipher: cipher suite selector
275 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
276 * with the get_key() callback, must be in little endian,
277 * length given by @seq_len.
278 * @seq_len: length of @seq.
289 * enum survey_info_flags - survey information flags
291 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
292 * @SURVEY_INFO_IN_USE: channel is currently being used
293 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
294 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
295 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
296 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
297 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
299 * Used by the driver to indicate which info in &struct survey_info
300 * it has filled in during the get_survey().
302 enum survey_info_flags
{
303 SURVEY_INFO_NOISE_DBM
= 1<<0,
304 SURVEY_INFO_IN_USE
= 1<<1,
305 SURVEY_INFO_CHANNEL_TIME
= 1<<2,
306 SURVEY_INFO_CHANNEL_TIME_BUSY
= 1<<3,
307 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY
= 1<<4,
308 SURVEY_INFO_CHANNEL_TIME_RX
= 1<<5,
309 SURVEY_INFO_CHANNEL_TIME_TX
= 1<<6,
313 * struct survey_info - channel survey response
315 * @channel: the channel this survey record reports, mandatory
316 * @filled: bitflag of flags from &enum survey_info_flags
317 * @noise: channel noise in dBm. This and all following fields are
319 * @channel_time: amount of time in ms the radio spent on the channel
320 * @channel_time_busy: amount of time the primary channel was sensed busy
321 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
322 * @channel_time_rx: amount of time the radio spent receiving data
323 * @channel_time_tx: amount of time the radio spent transmitting data
325 * Used by dump_survey() to report back per-channel survey information.
327 * This structure can later be expanded with things like
328 * channel duty cycle etc.
331 struct ieee80211_channel
*channel
;
333 u64 channel_time_busy
;
334 u64 channel_time_ext_busy
;
342 * struct beacon_parameters - beacon parameters
344 * Used to configure the beacon for an interface.
346 * @head: head portion of beacon (before TIM IE)
347 * or %NULL if not changed
348 * @tail: tail portion of beacon (after TIM IE)
349 * or %NULL if not changed
350 * @interval: beacon interval or zero if not changed
351 * @dtim_period: DTIM period or zero if not changed
352 * @head_len: length of @head
353 * @tail_len: length of @tail
355 struct beacon_parameters
{
357 int interval
, dtim_period
;
358 int head_len
, tail_len
;
362 * enum plink_action - actions to perform in mesh peers
364 * @PLINK_ACTION_INVALID: action 0 is reserved
365 * @PLINK_ACTION_OPEN: start mesh peer link establishment
366 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
369 PLINK_ACTION_INVALID
,
375 * struct station_parameters - station parameters
377 * Used to change and create a new station.
379 * @vlan: vlan interface station should belong to
380 * @supported_rates: supported rates in IEEE 802.11 format
381 * (or NULL for no change)
382 * @supported_rates_len: number of supported rates
383 * @sta_flags_mask: station flags that changed
384 * (bitmask of BIT(NL80211_STA_FLAG_...))
385 * @sta_flags_set: station flags values
386 * (bitmask of BIT(NL80211_STA_FLAG_...))
387 * @listen_interval: listen interval or -1 for no change
388 * @aid: AID or zero for no change
389 * @plink_action: plink action to take
390 * @ht_capa: HT capabilities of station
392 struct station_parameters
{
394 struct net_device
*vlan
;
395 u32 sta_flags_mask
, sta_flags_set
;
398 u8 supported_rates_len
;
400 struct ieee80211_ht_cap
*ht_capa
;
404 * enum station_info_flags - station information flags
406 * Used by the driver to indicate which info in &struct station_info
407 * it has filled in during get_station() or dump_station().
409 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
410 * @STATION_INFO_RX_BYTES: @rx_bytes filled
411 * @STATION_INFO_TX_BYTES: @tx_bytes filled
412 * @STATION_INFO_LLID: @llid filled
413 * @STATION_INFO_PLID: @plid filled
414 * @STATION_INFO_PLINK_STATE: @plink_state filled
415 * @STATION_INFO_SIGNAL: @signal filled
416 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
417 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
418 * @STATION_INFO_RX_PACKETS: @rx_packets filled
419 * @STATION_INFO_TX_PACKETS: @tx_packets filled
420 * @STATION_INFO_TX_RETRIES: @tx_retries filled
421 * @STATION_INFO_TX_FAILED: @tx_failed filled
422 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
423 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
425 enum station_info_flags
{
426 STATION_INFO_INACTIVE_TIME
= 1<<0,
427 STATION_INFO_RX_BYTES
= 1<<1,
428 STATION_INFO_TX_BYTES
= 1<<2,
429 STATION_INFO_LLID
= 1<<3,
430 STATION_INFO_PLID
= 1<<4,
431 STATION_INFO_PLINK_STATE
= 1<<5,
432 STATION_INFO_SIGNAL
= 1<<6,
433 STATION_INFO_TX_BITRATE
= 1<<7,
434 STATION_INFO_RX_PACKETS
= 1<<8,
435 STATION_INFO_TX_PACKETS
= 1<<9,
436 STATION_INFO_TX_RETRIES
= 1<<10,
437 STATION_INFO_TX_FAILED
= 1<<11,
438 STATION_INFO_RX_DROP_MISC
= 1<<12,
439 STATION_INFO_SIGNAL_AVG
= 1<<13,
443 * enum station_info_rate_flags - bitrate info flags
445 * Used by the driver to indicate the specific rate transmission
446 * type for 802.11n transmissions.
448 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
449 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
450 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
452 enum rate_info_flags
{
453 RATE_INFO_FLAGS_MCS
= 1<<0,
454 RATE_INFO_FLAGS_40_MHZ_WIDTH
= 1<<1,
455 RATE_INFO_FLAGS_SHORT_GI
= 1<<2,
459 * struct rate_info - bitrate information
461 * Information about a receiving or transmitting bitrate
463 * @flags: bitflag of flags from &enum rate_info_flags
464 * @mcs: mcs index if struct describes a 802.11n bitrate
465 * @legacy: bitrate in 100kbit/s for 802.11abg
474 * struct station_info - station information
476 * Station information filled by driver for get_station() and dump_station.
478 * @filled: bitflag of flags from &enum station_info_flags
479 * @inactive_time: time since last station activity (tx/rx) in milliseconds
480 * @rx_bytes: bytes received from this station
481 * @tx_bytes: bytes transmitted to this station
482 * @llid: mesh local link id
483 * @plid: mesh peer link id
484 * @plink_state: mesh peer link state
485 * @signal: signal strength of last received packet in dBm
486 * @signal_avg: signal strength average in dBm
487 * @txrate: current unicast bitrate to this station
488 * @rx_packets: packets received from this station
489 * @tx_packets: packets transmitted to this station
490 * @tx_retries: cumulative retry counts
491 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
492 * @rx_dropped_misc: Dropped for un-specified reason.
493 * @generation: generation number for nl80211 dumps.
494 * This number should increase every time the list of stations
495 * changes, i.e. when a station is added or removed, so that
496 * userspace can tell whether it got a consistent snapshot.
498 struct station_info
{
508 struct rate_info txrate
;
519 * enum monitor_flags - monitor flags
521 * Monitor interface configuration flags. Note that these must be the bits
522 * according to the nl80211 flags.
524 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
525 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
526 * @MONITOR_FLAG_CONTROL: pass control frames
527 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
528 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
531 MONITOR_FLAG_FCSFAIL
= 1<<NL80211_MNTR_FLAG_FCSFAIL
,
532 MONITOR_FLAG_PLCPFAIL
= 1<<NL80211_MNTR_FLAG_PLCPFAIL
,
533 MONITOR_FLAG_CONTROL
= 1<<NL80211_MNTR_FLAG_CONTROL
,
534 MONITOR_FLAG_OTHER_BSS
= 1<<NL80211_MNTR_FLAG_OTHER_BSS
,
535 MONITOR_FLAG_COOK_FRAMES
= 1<<NL80211_MNTR_FLAG_COOK_FRAMES
,
539 * enum mpath_info_flags - mesh path information flags
541 * Used by the driver to indicate which info in &struct mpath_info it has filled
542 * in during get_station() or dump_station().
544 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
545 * @MPATH_INFO_SN: @sn filled
546 * @MPATH_INFO_METRIC: @metric filled
547 * @MPATH_INFO_EXPTIME: @exptime filled
548 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
549 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
550 * @MPATH_INFO_FLAGS: @flags filled
552 enum mpath_info_flags
{
553 MPATH_INFO_FRAME_QLEN
= BIT(0),
554 MPATH_INFO_SN
= BIT(1),
555 MPATH_INFO_METRIC
= BIT(2),
556 MPATH_INFO_EXPTIME
= BIT(3),
557 MPATH_INFO_DISCOVERY_TIMEOUT
= BIT(4),
558 MPATH_INFO_DISCOVERY_RETRIES
= BIT(5),
559 MPATH_INFO_FLAGS
= BIT(6),
563 * struct mpath_info - mesh path information
565 * Mesh path information filled by driver for get_mpath() and dump_mpath().
567 * @filled: bitfield of flags from &enum mpath_info_flags
568 * @frame_qlen: number of queued frames for this destination
569 * @sn: target sequence number
570 * @metric: metric (cost) of this mesh path
571 * @exptime: expiration time for the mesh path from now, in msecs
572 * @flags: mesh path flags
573 * @discovery_timeout: total mesh path discovery timeout, in msecs
574 * @discovery_retries: mesh path discovery retries
575 * @generation: generation number for nl80211 dumps.
576 * This number should increase every time the list of mesh paths
577 * changes, i.e. when a station is added or removed, so that
578 * userspace can tell whether it got a consistent snapshot.
586 u32 discovery_timeout
;
587 u8 discovery_retries
;
594 * struct bss_parameters - BSS parameters
596 * Used to change BSS parameters (mainly for AP mode).
598 * @use_cts_prot: Whether to use CTS protection
599 * (0 = no, 1 = yes, -1 = do not change)
600 * @use_short_preamble: Whether the use of short preambles is allowed
601 * (0 = no, 1 = yes, -1 = do not change)
602 * @use_short_slot_time: Whether the use of short slot time is allowed
603 * (0 = no, 1 = yes, -1 = do not change)
604 * @basic_rates: basic rates in IEEE 802.11 format
605 * (or NULL for no change)
606 * @basic_rates_len: number of basic rates
607 * @ap_isolate: do not forward packets between connected stations
608 * @ht_opmode: HT Operation mode
609 * (u16 = opmode, -1 = do not change)
611 struct bss_parameters
{
613 int use_short_preamble
;
614 int use_short_slot_time
;
622 * struct mesh_config - 802.11s mesh configuration
624 * These parameters can be changed while the mesh is active.
628 /* Mesh plink management parameters */
629 u16 dot11MeshRetryTimeout
;
630 u16 dot11MeshConfirmTimeout
;
631 u16 dot11MeshHoldingTimeout
;
632 u16 dot11MeshMaxPeerLinks
;
633 u8 dot11MeshMaxRetries
;
635 /* ttl used in path selection information elements */
637 bool auto_open_plinks
;
638 /* HWMP parameters */
639 u8 dot11MeshHWMPmaxPREQretries
;
640 u32 path_refresh_time
;
641 u16 min_discovery_timeout
;
642 u32 dot11MeshHWMPactivePathTimeout
;
643 u16 dot11MeshHWMPpreqMinInterval
;
644 u16 dot11MeshHWMPnetDiameterTraversalTime
;
645 u8 dot11MeshHWMPRootMode
;
649 * struct mesh_setup - 802.11s mesh setup configuration
650 * @mesh_id: the mesh ID
651 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
653 * These parameters are fixed when the mesh is created.
661 * struct ieee80211_txq_params - TX queue parameters
662 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
663 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
664 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
666 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
668 * @aifs: Arbitration interframe space [0..255]
670 struct ieee80211_txq_params
{
671 enum nl80211_txq_q queue
;
678 /* from net/wireless.h */
682 * DOC: Scanning and BSS list handling
684 * The scanning process itself is fairly simple, but cfg80211 offers quite
685 * a bit of helper functionality. To start a scan, the scan operation will
686 * be invoked with a scan definition. This scan definition contains the
687 * channels to scan, and the SSIDs to send probe requests for (including the
688 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
689 * probe. Additionally, a scan request may contain extra information elements
690 * that should be added to the probe request. The IEs are guaranteed to be
691 * well-formed, and will not exceed the maximum length the driver advertised
692 * in the wiphy structure.
694 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
695 * it is responsible for maintaining the BSS list; the driver should not
696 * maintain a list itself. For this notification, various functions exist.
698 * Since drivers do not maintain a BSS list, there are also a number of
699 * functions to search for a BSS and obtain information about it from the
700 * BSS structure cfg80211 maintains. The BSS list is also made available
705 * struct cfg80211_ssid - SSID description
707 * @ssid_len: length of the ssid
709 struct cfg80211_ssid
{
710 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
715 * struct cfg80211_scan_request - scan request description
717 * @ssids: SSIDs to scan for (active scan only)
718 * @n_ssids: number of SSIDs
719 * @channels: channels to scan on.
720 * @n_channels: total number of channels to scan
721 * @ie: optional information element(s) to add into Probe Request or %NULL
722 * @ie_len: length of ie in octets
723 * @wiphy: the wiphy this was for
724 * @dev: the interface
725 * @aborted: (internal) scan request was notified as aborted
727 struct cfg80211_scan_request
{
728 struct cfg80211_ssid
*ssids
;
736 struct net_device
*dev
;
740 struct ieee80211_channel
*channels
[0];
744 * enum cfg80211_signal_type - signal type
746 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
747 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
748 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
750 enum cfg80211_signal_type
{
751 CFG80211_SIGNAL_TYPE_NONE
,
752 CFG80211_SIGNAL_TYPE_MBM
,
753 CFG80211_SIGNAL_TYPE_UNSPEC
,
757 * struct cfg80211_bss - BSS description
759 * This structure describes a BSS (which may also be a mesh network)
760 * for use in scan results and similar.
762 * @channel: channel this BSS is on
763 * @bssid: BSSID of the BSS
764 * @tsf: timestamp of last received update
765 * @beacon_interval: the beacon interval as from the frame
766 * @capability: the capability field in host byte order
767 * @information_elements: the information elements (Note that there
768 * is no guarantee that these are well-formed!); this is a pointer to
769 * either the beacon_ies or proberesp_ies depending on whether Probe
770 * Response frame has been received
771 * @len_information_elements: total length of the information elements
772 * @beacon_ies: the information elements from the last Beacon frame
773 * @len_beacon_ies: total length of the beacon_ies
774 * @proberesp_ies: the information elements from the last Probe Response frame
775 * @len_proberesp_ies: total length of the proberesp_ies
776 * @signal: signal strength value (type depends on the wiphy's signal_type)
777 * @free_priv: function pointer to free private data
778 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
780 struct cfg80211_bss
{
781 struct ieee80211_channel
*channel
;
787 u8
*information_elements
;
788 size_t len_information_elements
;
790 size_t len_beacon_ies
;
792 size_t len_proberesp_ies
;
796 void (*free_priv
)(struct cfg80211_bss
*bss
);
797 u8 priv
[0] __attribute__((__aligned__(sizeof(void *))));
801 * ieee80211_bss_get_ie - find IE with given ID
802 * @bss: the bss to search
804 * Returns %NULL if not found.
806 const u8
*ieee80211_bss_get_ie(struct cfg80211_bss
*bss
, u8 ie
);
810 * struct cfg80211_crypto_settings - Crypto settings
811 * @wpa_versions: indicates which, if any, WPA versions are enabled
812 * (from enum nl80211_wpa_versions)
813 * @cipher_group: group key cipher suite (or 0 if unset)
814 * @n_ciphers_pairwise: number of AP supported unicast ciphers
815 * @ciphers_pairwise: unicast key cipher suites
816 * @n_akm_suites: number of AKM suites
817 * @akm_suites: AKM suites
818 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
819 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
820 * required to assume that the port is unauthorized until authorized by
821 * user space. Otherwise, port is marked authorized by default.
822 * @control_port_ethertype: the control port protocol that should be
823 * allowed through even on unauthorized ports
824 * @control_port_no_encrypt: TRUE to prevent encryption of control port
827 struct cfg80211_crypto_settings
{
830 int n_ciphers_pairwise
;
831 u32 ciphers_pairwise
[NL80211_MAX_NR_CIPHER_SUITES
];
833 u32 akm_suites
[NL80211_MAX_NR_AKM_SUITES
];
835 __be16 control_port_ethertype
;
836 bool control_port_no_encrypt
;
840 * struct cfg80211_auth_request - Authentication request data
842 * This structure provides information needed to complete IEEE 802.11
845 * @bss: The BSS to authenticate with.
846 * @auth_type: Authentication type (algorithm)
847 * @ie: Extra IEs to add to Authentication frame or %NULL
848 * @ie_len: Length of ie buffer in octets
849 * @key_len: length of WEP key for shared key authentication
850 * @key_idx: index of WEP key for shared key authentication
851 * @key: WEP key for shared key authentication
852 * @local_state_change: This is a request for a local state only, i.e., no
853 * Authentication frame is to be transmitted and authentication state is
854 * to be changed without having to wait for a response from the peer STA
857 struct cfg80211_auth_request
{
858 struct cfg80211_bss
*bss
;
861 enum nl80211_auth_type auth_type
;
864 bool local_state_change
;
868 * struct cfg80211_assoc_request - (Re)Association request data
870 * This structure provides information needed to complete IEEE 802.11
872 * @bss: The BSS to associate with.
873 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
874 * @ie_len: Length of ie buffer in octets
875 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
876 * @crypto: crypto settings
877 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
879 struct cfg80211_assoc_request
{
880 struct cfg80211_bss
*bss
;
881 const u8
*ie
, *prev_bssid
;
883 struct cfg80211_crypto_settings crypto
;
888 * struct cfg80211_deauth_request - Deauthentication request data
890 * This structure provides information needed to complete IEEE 802.11
893 * @bss: the BSS to deauthenticate from
894 * @ie: Extra IEs to add to Deauthentication frame or %NULL
895 * @ie_len: Length of ie buffer in octets
896 * @reason_code: The reason code for the deauthentication
897 * @local_state_change: This is a request for a local state only, i.e., no
898 * Deauthentication frame is to be transmitted.
900 struct cfg80211_deauth_request
{
901 struct cfg80211_bss
*bss
;
905 bool local_state_change
;
909 * struct cfg80211_disassoc_request - Disassociation request data
911 * This structure provides information needed to complete IEEE 802.11
914 * @bss: the BSS to disassociate from
915 * @ie: Extra IEs to add to Disassociation frame or %NULL
916 * @ie_len: Length of ie buffer in octets
917 * @reason_code: The reason code for the disassociation
918 * @local_state_change: This is a request for a local state only, i.e., no
919 * Disassociation frame is to be transmitted.
921 struct cfg80211_disassoc_request
{
922 struct cfg80211_bss
*bss
;
926 bool local_state_change
;
930 * struct cfg80211_ibss_params - IBSS parameters
932 * This structure defines the IBSS parameters for the join_ibss()
935 * @ssid: The SSID, will always be non-null.
936 * @ssid_len: The length of the SSID, will always be non-zero.
937 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
938 * search for IBSSs with a different BSSID.
939 * @channel: The channel to use if no IBSS can be found to join.
940 * @channel_fixed: The channel should be fixed -- do not search for
941 * IBSSs to join on other channels.
942 * @ie: information element(s) to include in the beacon
943 * @ie_len: length of that
944 * @beacon_interval: beacon interval to use
945 * @privacy: this is a protected network, keys will be configured
947 * @basic_rates: bitmap of basic rates to use when creating the IBSS
948 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
950 struct cfg80211_ibss_params
{
953 struct ieee80211_channel
*channel
;
960 int mcast_rate
[IEEE80211_NUM_BANDS
];
964 * struct cfg80211_connect_params - Connection parameters
966 * This structure provides information needed to complete IEEE 802.11
967 * authentication and association.
969 * @channel: The channel to use or %NULL if not specified (auto-select based
971 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
974 * @ssid_len: Length of ssid in octets
975 * @auth_type: Authentication type (algorithm)
976 * @ie: IEs for association request
977 * @ie_len: Length of assoc_ie in octets
978 * @privacy: indicates whether privacy-enabled APs should be used
979 * @crypto: crypto settings
980 * @key_len: length of WEP key for shared key authentication
981 * @key_idx: index of WEP key for shared key authentication
982 * @key: WEP key for shared key authentication
984 struct cfg80211_connect_params
{
985 struct ieee80211_channel
*channel
;
989 enum nl80211_auth_type auth_type
;
993 struct cfg80211_crypto_settings crypto
;
999 * enum wiphy_params_flags - set_wiphy_params bitfield values
1000 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
1001 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
1002 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
1003 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
1004 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1006 enum wiphy_params_flags
{
1007 WIPHY_PARAM_RETRY_SHORT
= 1 << 0,
1008 WIPHY_PARAM_RETRY_LONG
= 1 << 1,
1009 WIPHY_PARAM_FRAG_THRESHOLD
= 1 << 2,
1010 WIPHY_PARAM_RTS_THRESHOLD
= 1 << 3,
1011 WIPHY_PARAM_COVERAGE_CLASS
= 1 << 4,
1015 * cfg80211_bitrate_mask - masks for bitrate control
1017 struct cfg80211_bitrate_mask
{
1020 /* TODO: add support for masking MCS rates; e.g.: */
1021 /* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */
1022 } control
[IEEE80211_NUM_BANDS
];
1025 * struct cfg80211_pmksa - PMK Security Association
1027 * This structure is passed to the set/del_pmksa() method for PMKSA
1030 * @bssid: The AP's BSSID.
1031 * @pmkid: The PMK material itself.
1033 struct cfg80211_pmksa
{
1039 * struct cfg80211_ops - backend description for wireless configuration
1041 * This struct is registered by fullmac card drivers and/or wireless stacks
1042 * in order to handle configuration requests on their interfaces.
1044 * All callbacks except where otherwise noted should return 0
1045 * on success or a negative error code.
1047 * All operations are currently invoked under rtnl for consistency with the
1048 * wireless extensions but this is subject to reevaluation as soon as this
1049 * code is used more widely and we have a first user without wext.
1051 * @suspend: wiphy device needs to be suspended
1052 * @resume: wiphy device needs to be resumed
1054 * @add_virtual_intf: create a new virtual interface with the given name,
1055 * must set the struct wireless_dev's iftype. Beware: You must create
1056 * the new netdev in the wiphy's network namespace! Returns the netdev,
1059 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1061 * @change_virtual_intf: change type/configuration of virtual interface,
1062 * keep the struct wireless_dev's iftype updated.
1064 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
1065 * when adding a group key.
1067 * @get_key: get information about the key with the given parameters.
1068 * @mac_addr will be %NULL when requesting information for a group
1069 * key. All pointers given to the @callback function need not be valid
1070 * after it returns. This function should return an error if it is
1071 * not possible to retrieve the key, -ENOENT if it doesn't exist.
1073 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1074 * and @key_index, return -ENOENT if the key doesn't exist.
1076 * @set_default_key: set the default key on an interface
1078 * @set_default_mgmt_key: set the default management frame key on an interface
1080 * @add_beacon: Add a beacon with given parameters, @head, @interval
1081 * and @dtim_period will be valid, @tail is optional.
1082 * @set_beacon: Change the beacon parameters for an access point mode
1083 * interface. This should reject the call when no beacon has been
1085 * @del_beacon: Remove beacon configuration and stop sending the beacon.
1087 * @add_station: Add a new station.
1088 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1089 * @change_station: Modify a given station.
1090 * @get_station: get station information for the station identified by @mac
1091 * @dump_station: dump station callback -- resume dump at index @idx
1093 * @add_mpath: add a fixed mesh path
1094 * @del_mpath: delete a given mesh path
1095 * @change_mpath: change a given mesh path
1096 * @get_mpath: get a mesh path for the given parameters
1097 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1099 * @get_mesh_params: Put the current mesh parameters into *params
1101 * @update_mesh_params: Update mesh parameters on a running mesh.
1102 * The mask is a bitfield which tells us which parameters to
1103 * set, and which to leave alone.
1105 * @change_bss: Modify parameters for a given BSS.
1107 * @set_txq_params: Set TX queue parameters
1109 * @set_channel: Set channel for a given wireless interface. Some devices
1110 * may support multi-channel operation (by channel hopping) so cfg80211
1111 * doesn't verify much. Note, however, that the passed netdev may be
1112 * %NULL as well if the user requested changing the channel for the
1113 * device itself, or for a monitor interface.
1115 * @scan: Request to do a scan. If returning zero, the scan request is given
1116 * the driver, and will be valid until passed to cfg80211_scan_done().
1117 * For scan results, call cfg80211_inform_bss(); you can call this outside
1118 * the scan/scan_done bracket too.
1120 * @auth: Request to authenticate with the specified peer
1121 * @assoc: Request to (re)associate with the specified peer
1122 * @deauth: Request to deauthenticate from the specified peer
1123 * @disassoc: Request to disassociate from the specified peer
1125 * @connect: Connect to the ESS with the specified parameters. When connected,
1126 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1127 * If the connection fails for some reason, call cfg80211_connect_result()
1128 * with the status from the AP.
1129 * @disconnect: Disconnect from the BSS/ESS.
1131 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1132 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1134 * @leave_ibss: Leave the IBSS.
1136 * @set_wiphy_params: Notify that wiphy parameters have changed;
1137 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1138 * have changed. The actual parameter values are available in
1139 * struct wiphy. If returning an error, no value should be changed.
1141 * @set_tx_power: set the transmit power according to the parameters
1142 * @get_tx_power: store the current TX power into the dbm variable;
1143 * return 0 if successful
1145 * @set_wds_peer: set the WDS peer for a WDS interface
1147 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1148 * functions to adjust rfkill hw state
1150 * @dump_survey: get site survey information.
1152 * @remain_on_channel: Request the driver to remain awake on the specified
1153 * channel for the specified duration to complete an off-channel
1154 * operation (e.g., public action frame exchange). When the driver is
1155 * ready on the requested channel, it must indicate this with an event
1156 * notification by calling cfg80211_ready_on_channel().
1157 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1158 * This allows the operation to be terminated prior to timeout based on
1159 * the duration value.
1160 * @mgmt_tx: Transmit a management frame.
1161 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
1162 * frame on another channel
1164 * @testmode_cmd: run a test mode command
1166 * @set_bitrate_mask: set the bitrate mask configuration
1168 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1169 * devices running firmwares capable of generating the (re) association
1170 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1171 * @del_pmksa: Delete a cached PMKID.
1172 * @flush_pmksa: Flush all cached PMKIDs.
1173 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1174 * allows the driver to adjust the dynamic ps timeout value.
1175 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1177 * @mgmt_frame_register: Notify driver that a management frame type was
1178 * registered. Note that this callback may not sleep, and cannot run
1179 * concurrently with itself.
1181 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
1182 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
1183 * reject TX/RX mask combinations they cannot support by returning -EINVAL
1184 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
1186 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1188 struct cfg80211_ops
{
1189 int (*suspend
)(struct wiphy
*wiphy
);
1190 int (*resume
)(struct wiphy
*wiphy
);
1192 struct net_device
* (*add_virtual_intf
)(struct wiphy
*wiphy
,
1194 enum nl80211_iftype type
,
1196 struct vif_params
*params
);
1197 int (*del_virtual_intf
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1198 int (*change_virtual_intf
)(struct wiphy
*wiphy
,
1199 struct net_device
*dev
,
1200 enum nl80211_iftype type
, u32
*flags
,
1201 struct vif_params
*params
);
1203 int (*add_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1204 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1205 struct key_params
*params
);
1206 int (*get_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1207 u8 key_index
, bool pairwise
, const u8
*mac_addr
,
1209 void (*callback
)(void *cookie
, struct key_params
*));
1210 int (*del_key
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1211 u8 key_index
, bool pairwise
, const u8
*mac_addr
);
1212 int (*set_default_key
)(struct wiphy
*wiphy
,
1213 struct net_device
*netdev
,
1215 int (*set_default_mgmt_key
)(struct wiphy
*wiphy
,
1216 struct net_device
*netdev
,
1219 int (*add_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1220 struct beacon_parameters
*info
);
1221 int (*set_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1222 struct beacon_parameters
*info
);
1223 int (*del_beacon
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1226 int (*add_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1227 u8
*mac
, struct station_parameters
*params
);
1228 int (*del_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1230 int (*change_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1231 u8
*mac
, struct station_parameters
*params
);
1232 int (*get_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1233 u8
*mac
, struct station_info
*sinfo
);
1234 int (*dump_station
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1235 int idx
, u8
*mac
, struct station_info
*sinfo
);
1237 int (*add_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1238 u8
*dst
, u8
*next_hop
);
1239 int (*del_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1241 int (*change_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1242 u8
*dst
, u8
*next_hop
);
1243 int (*get_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1244 u8
*dst
, u8
*next_hop
,
1245 struct mpath_info
*pinfo
);
1246 int (*dump_mpath
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1247 int idx
, u8
*dst
, u8
*next_hop
,
1248 struct mpath_info
*pinfo
);
1249 int (*get_mesh_params
)(struct wiphy
*wiphy
,
1250 struct net_device
*dev
,
1251 struct mesh_config
*conf
);
1252 int (*update_mesh_params
)(struct wiphy
*wiphy
,
1253 struct net_device
*dev
, u32 mask
,
1254 const struct mesh_config
*nconf
);
1255 int (*join_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1256 const struct mesh_config
*conf
,
1257 const struct mesh_setup
*setup
);
1258 int (*leave_mesh
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1260 int (*change_bss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1261 struct bss_parameters
*params
);
1263 int (*set_txq_params
)(struct wiphy
*wiphy
,
1264 struct ieee80211_txq_params
*params
);
1266 int (*set_channel
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1267 struct ieee80211_channel
*chan
,
1268 enum nl80211_channel_type channel_type
);
1270 int (*scan
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1271 struct cfg80211_scan_request
*request
);
1273 int (*auth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1274 struct cfg80211_auth_request
*req
);
1275 int (*assoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1276 struct cfg80211_assoc_request
*req
);
1277 int (*deauth
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1278 struct cfg80211_deauth_request
*req
,
1280 int (*disassoc
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1281 struct cfg80211_disassoc_request
*req
,
1284 int (*connect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1285 struct cfg80211_connect_params
*sme
);
1286 int (*disconnect
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1289 int (*join_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1290 struct cfg80211_ibss_params
*params
);
1291 int (*leave_ibss
)(struct wiphy
*wiphy
, struct net_device
*dev
);
1293 int (*set_wiphy_params
)(struct wiphy
*wiphy
, u32 changed
);
1295 int (*set_tx_power
)(struct wiphy
*wiphy
,
1296 enum nl80211_tx_power_setting type
, int mbm
);
1297 int (*get_tx_power
)(struct wiphy
*wiphy
, int *dbm
);
1299 int (*set_wds_peer
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1302 void (*rfkill_poll
)(struct wiphy
*wiphy
);
1304 #ifdef CONFIG_NL80211_TESTMODE
1305 int (*testmode_cmd
)(struct wiphy
*wiphy
, void *data
, int len
);
1308 int (*set_bitrate_mask
)(struct wiphy
*wiphy
,
1309 struct net_device
*dev
,
1311 const struct cfg80211_bitrate_mask
*mask
);
1313 int (*dump_survey
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1314 int idx
, struct survey_info
*info
);
1316 int (*set_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1317 struct cfg80211_pmksa
*pmksa
);
1318 int (*del_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1319 struct cfg80211_pmksa
*pmksa
);
1320 int (*flush_pmksa
)(struct wiphy
*wiphy
, struct net_device
*netdev
);
1322 int (*remain_on_channel
)(struct wiphy
*wiphy
,
1323 struct net_device
*dev
,
1324 struct ieee80211_channel
*chan
,
1325 enum nl80211_channel_type channel_type
,
1326 unsigned int duration
,
1328 int (*cancel_remain_on_channel
)(struct wiphy
*wiphy
,
1329 struct net_device
*dev
,
1332 int (*mgmt_tx
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1333 struct ieee80211_channel
*chan
, bool offchan
,
1334 enum nl80211_channel_type channel_type
,
1335 bool channel_type_valid
, unsigned int wait
,
1336 const u8
*buf
, size_t len
, u64
*cookie
);
1337 int (*mgmt_tx_cancel_wait
)(struct wiphy
*wiphy
,
1338 struct net_device
*dev
,
1341 int (*set_power_mgmt
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1342 bool enabled
, int timeout
);
1344 int (*set_cqm_rssi_config
)(struct wiphy
*wiphy
,
1345 struct net_device
*dev
,
1346 s32 rssi_thold
, u32 rssi_hyst
);
1348 void (*mgmt_frame_register
)(struct wiphy
*wiphy
,
1349 struct net_device
*dev
,
1350 u16 frame_type
, bool reg
);
1352 int (*set_antenna
)(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
);
1353 int (*get_antenna
)(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
);
1357 * wireless hardware and networking interfaces structures
1358 * and registration/helper functions
1362 * enum wiphy_flags - wiphy capability flags
1364 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1365 * has its own custom regulatory domain and cannot identify the
1366 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1367 * we will disregard the first regulatory hint (when the
1368 * initiator is %REGDOM_SET_BY_CORE).
1369 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1370 * ignore regulatory domain settings until it gets its own regulatory
1371 * domain via its regulatory_hint() unless the regulatory hint is
1372 * from a country IE. After its gets its own regulatory domain it will
1373 * only allow further regulatory domain settings to further enhance
1374 * compliance. For example if channel 13 and 14 are disabled by this
1375 * regulatory domain no user regulatory domain can enable these channels
1376 * at a later time. This can be used for devices which do not have
1377 * calibration information guaranteed for frequencies or settings
1378 * outside of its regulatory domain.
1379 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1380 * that passive scan flags and beaconing flags may not be lifted by
1381 * cfg80211 due to regulatory beacon hints. For more information on beacon
1382 * hints read the documenation for regulatory_hint_found_beacon()
1383 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1385 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1386 * by default -- this flag will be set depending on the kernel's default
1387 * on wiphy_new(), but can be changed by the driver if it has a good
1388 * reason to override the default
1389 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1390 * on a VLAN interface)
1391 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1392 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
1393 * control port protocol ethertype. The device also honours the
1394 * control_port_no_encrypt flag.
1395 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1398 WIPHY_FLAG_CUSTOM_REGULATORY
= BIT(0),
1399 WIPHY_FLAG_STRICT_REGULATORY
= BIT(1),
1400 WIPHY_FLAG_DISABLE_BEACON_HINTS
= BIT(2),
1401 WIPHY_FLAG_NETNS_OK
= BIT(3),
1402 WIPHY_FLAG_PS_ON_BY_DEFAULT
= BIT(4),
1403 WIPHY_FLAG_4ADDR_AP
= BIT(5),
1404 WIPHY_FLAG_4ADDR_STATION
= BIT(6),
1405 WIPHY_FLAG_CONTROL_PORT_PROTOCOL
= BIT(7),
1406 WIPHY_FLAG_IBSS_RSN
= BIT(8),
1409 struct mac_address
{
1413 struct ieee80211_txrx_stypes
{
1418 * struct wiphy - wireless hardware description
1419 * @reg_notifier: the driver's regulatory notification callback
1420 * @regd: the driver's regulatory domain, if one was requested via
1421 * the regulatory_hint() API. This can be used by the driver
1422 * on the reg_notifier() if it chooses to ignore future
1423 * regulatory domain changes caused by other drivers.
1424 * @signal_type: signal type reported in &struct cfg80211_bss.
1425 * @cipher_suites: supported cipher suites
1426 * @n_cipher_suites: number of supported cipher suites
1427 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1428 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1429 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1430 * -1 = fragmentation disabled, only odd values >= 256 used
1431 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1432 * @_net: the network namespace this wiphy currently lives in
1433 * @perm_addr: permanent MAC address of this device
1434 * @addr_mask: If the device supports multiple MAC addresses by masking,
1435 * set this to a mask with variable bits set to 1, e.g. if the last
1436 * four bits are variable then set it to 00:...:00:0f. The actual
1437 * variable bits shall be determined by the interfaces added, with
1438 * interfaces not matching the mask being rejected to be brought up.
1439 * @n_addresses: number of addresses in @addresses.
1440 * @addresses: If the device has more than one address, set this pointer
1441 * to a list of addresses (6 bytes each). The first one will be used
1442 * by default for perm_addr. In this case, the mask should be set to
1443 * all-zeroes. In this case it is assumed that the device can handle
1444 * the same number of arbitrary MAC addresses.
1445 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
1446 * automatically on wiphy renames
1447 * @dev: (virtual) struct device for this wiphy
1448 * @wext: wireless extension handlers
1449 * @priv: driver private data (sized according to wiphy_new() parameter)
1450 * @interface_modes: bitmask of interfaces types valid for this wiphy,
1451 * must be set by driver
1452 * @flags: wiphy flags, see &enum wiphy_flags
1453 * @bss_priv_size: each BSS struct has private data allocated with it,
1454 * this variable determines its size
1455 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
1457 * @max_scan_ie_len: maximum length of user-controlled IEs device can
1458 * add to probe request frames transmitted during a scan, must not
1459 * include fixed IEs like supported rates
1460 * @coverage_class: current coverage class
1461 * @fw_version: firmware version for ethtool reporting
1462 * @hw_version: hardware version for ethtool reporting
1463 * @max_num_pmkids: maximum number of PMKIDs supported by device
1464 * @privid: a pointer that drivers can use to identify if an arbitrary
1465 * wiphy is theirs, e.g. in global notifiers
1466 * @bands: information about bands/channels supported by this device
1468 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
1469 * transmitted through nl80211, points to an array indexed by interface
1473 /* assign these fields before you register the wiphy */
1475 /* permanent MAC address(es) */
1476 u8 perm_addr
[ETH_ALEN
];
1477 u8 addr_mask
[ETH_ALEN
];
1479 struct mac_address
*addresses
;
1481 const struct ieee80211_txrx_stypes
*mgmt_stypes
;
1485 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
1486 u16 interface_modes
;
1490 enum cfg80211_signal_type signal_type
;
1494 u16 max_scan_ie_len
;
1496 int n_cipher_suites
;
1497 const u32
*cipher_suites
;
1505 char fw_version
[ETHTOOL_BUSINFO_LEN
];
1510 /* If multiple wiphys are registered and you're handed e.g.
1511 * a regular netdev with assigned ieee80211_ptr, you won't
1512 * know whether it points to a wiphy your driver has registered
1513 * or not. Assign this to something global to your driver to
1514 * help determine whether you own this wiphy or not. */
1517 struct ieee80211_supported_band
*bands
[IEEE80211_NUM_BANDS
];
1519 /* Lets us get back the wiphy on the callback */
1520 int (*reg_notifier
)(struct wiphy
*wiphy
,
1521 struct regulatory_request
*request
);
1523 /* fields below are read-only, assigned by cfg80211 */
1525 const struct ieee80211_regdomain
*regd
;
1527 /* the item in /sys/class/ieee80211/ points to this,
1528 * you need use set_wiphy_dev() (see below) */
1531 /* dir in debugfs: ieee80211/<wiphyname> */
1532 struct dentry
*debugfsdir
;
1534 #ifdef CONFIG_NET_NS
1535 /* the network namespace this phy lives in currently */
1539 #ifdef CONFIG_CFG80211_WEXT
1540 const struct iw_handler_def
*wext
;
1543 char priv
[0] __attribute__((__aligned__(NETDEV_ALIGN
)));
1546 static inline struct net
*wiphy_net(struct wiphy
*wiphy
)
1548 return read_pnet(&wiphy
->_net
);
1551 static inline void wiphy_net_set(struct wiphy
*wiphy
, struct net
*net
)
1553 write_pnet(&wiphy
->_net
, net
);
1557 * wiphy_priv - return priv from wiphy
1559 * @wiphy: the wiphy whose priv pointer to return
1561 static inline void *wiphy_priv(struct wiphy
*wiphy
)
1564 return &wiphy
->priv
;
1568 * priv_to_wiphy - return the wiphy containing the priv
1570 * @priv: a pointer previously returned by wiphy_priv
1572 static inline struct wiphy
*priv_to_wiphy(void *priv
)
1575 return container_of(priv
, struct wiphy
, priv
);
1579 * set_wiphy_dev - set device pointer for wiphy
1581 * @wiphy: The wiphy whose device to bind
1582 * @dev: The device to parent it to
1584 static inline void set_wiphy_dev(struct wiphy
*wiphy
, struct device
*dev
)
1586 wiphy
->dev
.parent
= dev
;
1590 * wiphy_dev - get wiphy dev pointer
1592 * @wiphy: The wiphy whose device struct to look up
1594 static inline struct device
*wiphy_dev(struct wiphy
*wiphy
)
1596 return wiphy
->dev
.parent
;
1600 * wiphy_name - get wiphy name
1602 * @wiphy: The wiphy whose name to return
1604 static inline const char *wiphy_name(const struct wiphy
*wiphy
)
1606 return dev_name(&wiphy
->dev
);
1610 * wiphy_new - create a new wiphy for use with cfg80211
1612 * @ops: The configuration operations for this device
1613 * @sizeof_priv: The size of the private area to allocate
1615 * Create a new wiphy and associate the given operations with it.
1616 * @sizeof_priv bytes are allocated for private use.
1618 * The returned pointer must be assigned to each netdev's
1619 * ieee80211_ptr for proper operation.
1621 struct wiphy
*wiphy_new(const struct cfg80211_ops
*ops
, int sizeof_priv
);
1624 * wiphy_register - register a wiphy with cfg80211
1626 * @wiphy: The wiphy to register.
1628 * Returns a non-negative wiphy index or a negative error code.
1630 extern int wiphy_register(struct wiphy
*wiphy
);
1633 * wiphy_unregister - deregister a wiphy from cfg80211
1635 * @wiphy: The wiphy to unregister.
1637 * After this call, no more requests can be made with this priv
1638 * pointer, but the call may sleep to wait for an outstanding
1639 * request that is being handled.
1641 extern void wiphy_unregister(struct wiphy
*wiphy
);
1644 * wiphy_free - free wiphy
1646 * @wiphy: The wiphy to free
1648 extern void wiphy_free(struct wiphy
*wiphy
);
1650 /* internal structs */
1651 struct cfg80211_conn
;
1652 struct cfg80211_internal_bss
;
1653 struct cfg80211_cached_keys
;
1655 #define MAX_AUTH_BSSES 4
1658 * struct wireless_dev - wireless per-netdev state
1660 * This structure must be allocated by the driver/stack
1661 * that uses the ieee80211_ptr field in struct net_device
1662 * (this is intentional so it can be allocated along with
1665 * @wiphy: pointer to hardware description
1666 * @iftype: interface type
1667 * @list: (private) Used to collect the interfaces
1668 * @netdev: (private) Used to reference back to the netdev
1669 * @current_bss: (private) Used by the internal configuration code
1670 * @channel: (private) Used by the internal configuration code to track
1671 * user-set AP, monitor and WDS channels for wireless extensions
1672 * @bssid: (private) Used by the internal configuration code
1673 * @ssid: (private) Used by the internal configuration code
1674 * @ssid_len: (private) Used by the internal configuration code
1675 * @mesh_id_len: (private) Used by the internal configuration code
1676 * @mesh_id_up_len: (private) Used by the internal configuration code
1677 * @wext: (private) Used by the internal wireless extensions compat code
1678 * @use_4addr: indicates 4addr mode is used on this interface, must be
1679 * set by driver (if supported) on add_interface BEFORE registering the
1680 * netdev and may otherwise be used by driver read-only, will be update
1681 * by cfg80211 on change_interface
1682 * @mgmt_registrations: list of registrations for management frames
1683 * @mgmt_registrations_lock: lock for the list
1684 * @mtx: mutex used to lock data in this struct
1685 * @cleanup_work: work struct used for cleanup that can't be done directly
1687 struct wireless_dev
{
1688 struct wiphy
*wiphy
;
1689 enum nl80211_iftype iftype
;
1691 /* the remainder of this struct should be private to cfg80211 */
1692 struct list_head list
;
1693 struct net_device
*netdev
;
1695 struct list_head mgmt_registrations
;
1696 spinlock_t mgmt_registrations_lock
;
1700 struct work_struct cleanup_work
;
1704 /* currently used for IBSS and SME - might be rearranged later */
1705 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1706 u8 ssid_len
, mesh_id_len
, mesh_id_up_len
;
1709 CFG80211_SME_CONNECTING
,
1710 CFG80211_SME_CONNECTED
,
1712 struct cfg80211_conn
*conn
;
1713 struct cfg80211_cached_keys
*connect_keys
;
1715 struct list_head event_list
;
1716 spinlock_t event_lock
;
1718 struct cfg80211_internal_bss
*authtry_bsses
[MAX_AUTH_BSSES
];
1719 struct cfg80211_internal_bss
*auth_bsses
[MAX_AUTH_BSSES
];
1720 struct cfg80211_internal_bss
*current_bss
; /* associated / joined */
1721 struct ieee80211_channel
*channel
;
1726 #ifdef CONFIG_CFG80211_WEXT
1729 struct cfg80211_ibss_params ibss
;
1730 struct cfg80211_connect_params connect
;
1731 struct cfg80211_cached_keys
*keys
;
1734 u8 bssid
[ETH_ALEN
], prev_bssid
[ETH_ALEN
];
1735 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
1736 s8 default_key
, default_mgmt_key
;
1737 bool prev_bssid_valid
;
1743 * wdev_priv - return wiphy priv from wireless_dev
1745 * @wdev: The wireless device whose wiphy's priv pointer to return
1747 static inline void *wdev_priv(struct wireless_dev
*wdev
)
1750 return wiphy_priv(wdev
->wiphy
);
1754 * DOC: Utility functions
1756 * cfg80211 offers a number of utility functions that can be useful.
1760 * ieee80211_channel_to_frequency - convert channel number to frequency
1761 * @chan: channel number
1763 extern int ieee80211_channel_to_frequency(int chan
);
1766 * ieee80211_frequency_to_channel - convert frequency to channel number
1767 * @freq: center frequency
1769 extern int ieee80211_frequency_to_channel(int freq
);
1772 * Name indirection necessary because the ieee80211 code also has
1773 * a function named "ieee80211_get_channel", so if you include
1774 * cfg80211's header file you get cfg80211's version, if you try
1775 * to include both header files you'll (rightfully!) get a symbol
1778 extern struct ieee80211_channel
*__ieee80211_get_channel(struct wiphy
*wiphy
,
1781 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
1782 * @wiphy: the struct wiphy to get the channel for
1783 * @freq: the center frequency of the channel
1785 static inline struct ieee80211_channel
*
1786 ieee80211_get_channel(struct wiphy
*wiphy
, int freq
)
1788 return __ieee80211_get_channel(wiphy
, freq
);
1792 * ieee80211_get_response_rate - get basic rate for a given rate
1794 * @sband: the band to look for rates in
1795 * @basic_rates: bitmap of basic rates
1796 * @bitrate: the bitrate for which to find the basic rate
1798 * This function returns the basic rate corresponding to a given
1799 * bitrate, that is the next lower bitrate contained in the basic
1800 * rate map, which is, for this function, given as a bitmap of
1801 * indices of rates in the band's bitrate table.
1803 struct ieee80211_rate
*
1804 ieee80211_get_response_rate(struct ieee80211_supported_band
*sband
,
1805 u32 basic_rates
, int bitrate
);
1808 * Radiotap parsing functions -- for controlled injection support
1810 * Implemented in net/wireless/radiotap.c
1811 * Documentation in Documentation/networking/radiotap-headers.txt
1814 struct radiotap_align_size
{
1815 uint8_t align
:4, size
:4;
1818 struct ieee80211_radiotap_namespace
{
1819 const struct radiotap_align_size
*align_size
;
1825 struct ieee80211_radiotap_vendor_namespaces
{
1826 const struct ieee80211_radiotap_namespace
*ns
;
1831 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
1832 * @this_arg_index: index of current arg, valid after each successful call
1833 * to ieee80211_radiotap_iterator_next()
1834 * @this_arg: pointer to current radiotap arg; it is valid after each
1835 * call to ieee80211_radiotap_iterator_next() but also after
1836 * ieee80211_radiotap_iterator_init() where it will point to
1837 * the beginning of the actual data portion
1838 * @this_arg_size: length of the current arg, for convenience
1839 * @current_namespace: pointer to the current namespace definition
1840 * (or internally %NULL if the current namespace is unknown)
1841 * @is_radiotap_ns: indicates whether the current namespace is the default
1842 * radiotap namespace or not
1844 * @_rtheader: pointer to the radiotap header we are walking through
1845 * @_max_length: length of radiotap header in cpu byte ordering
1846 * @_arg_index: next argument index
1847 * @_arg: next argument pointer
1848 * @_next_bitmap: internal pointer to next present u32
1849 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
1850 * @_vns: vendor namespace definitions
1851 * @_next_ns_data: beginning of the next namespace's data
1852 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
1855 * Describes the radiotap parser state. Fields prefixed with an underscore
1856 * must not be used by users of the parser, only by the parser internally.
1859 struct ieee80211_radiotap_iterator
{
1860 struct ieee80211_radiotap_header
*_rtheader
;
1861 const struct ieee80211_radiotap_vendor_namespaces
*_vns
;
1862 const struct ieee80211_radiotap_namespace
*current_namespace
;
1864 unsigned char *_arg
, *_next_ns_data
;
1865 __le32
*_next_bitmap
;
1867 unsigned char *this_arg
;
1875 uint32_t _bitmap_shifter
;
1879 extern int ieee80211_radiotap_iterator_init(
1880 struct ieee80211_radiotap_iterator
*iterator
,
1881 struct ieee80211_radiotap_header
*radiotap_header
,
1882 int max_length
, const struct ieee80211_radiotap_vendor_namespaces
*vns
);
1884 extern int ieee80211_radiotap_iterator_next(
1885 struct ieee80211_radiotap_iterator
*iterator
);
1888 extern const unsigned char rfc1042_header
[6];
1889 extern const unsigned char bridge_tunnel_header
[6];
1892 * ieee80211_get_hdrlen_from_skb - get header length from data
1894 * Given an skb with a raw 802.11 header at the data pointer this function
1895 * returns the 802.11 header length in bytes (not including encryption
1896 * headers). If the data in the sk_buff is too short to contain a valid 802.11
1897 * header the function returns 0.
1901 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff
*skb
);
1904 * ieee80211_hdrlen - get header length in bytes from frame control
1905 * @fc: frame control field in little-endian format
1907 unsigned int __attribute_const__
ieee80211_hdrlen(__le16 fc
);
1910 * DOC: Data path helpers
1912 * In addition to generic utilities, cfg80211 also offers
1913 * functions that help implement the data path for devices
1914 * that do not do the 802.11/802.3 conversion on the device.
1918 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
1919 * @skb: the 802.11 data frame
1920 * @addr: the device MAC address
1921 * @iftype: the virtual interface type
1923 int ieee80211_data_to_8023(struct sk_buff
*skb
, const u8
*addr
,
1924 enum nl80211_iftype iftype
);
1927 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
1928 * @skb: the 802.3 frame
1929 * @addr: the device MAC address
1930 * @iftype: the virtual interface type
1931 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
1932 * @qos: build 802.11 QoS data frame
1934 int ieee80211_data_from_8023(struct sk_buff
*skb
, const u8
*addr
,
1935 enum nl80211_iftype iftype
, u8
*bssid
, bool qos
);
1938 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
1940 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
1941 * 802.3 frames. The @list will be empty if the decode fails. The
1942 * @skb is consumed after the function returns.
1944 * @skb: The input IEEE 802.11n A-MSDU frame.
1945 * @list: The output list of 802.3 frames. It must be allocated and
1946 * initialized by by the caller.
1947 * @addr: The device MAC address.
1948 * @iftype: The device interface type.
1949 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
1951 void ieee80211_amsdu_to_8023s(struct sk_buff
*skb
, struct sk_buff_head
*list
,
1952 const u8
*addr
, enum nl80211_iftype iftype
,
1953 const unsigned int extra_headroom
);
1956 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
1957 * @skb: the data frame
1959 unsigned int cfg80211_classify8021d(struct sk_buff
*skb
);
1962 * cfg80211_find_ie - find information element in data
1965 * @ies: data consisting of IEs
1966 * @len: length of data
1968 * This function will return %NULL if the element ID could
1969 * not be found or if the element is invalid (claims to be
1970 * longer than the given data), or a pointer to the first byte
1971 * of the requested element, that is the byte containing the
1972 * element ID. There are no checks on the element length
1973 * other than having to fit into the given data.
1975 const u8
*cfg80211_find_ie(u8 eid
, const u8
*ies
, int len
);
1978 * DOC: Regulatory enforcement infrastructure
1984 * regulatory_hint - driver hint to the wireless core a regulatory domain
1985 * @wiphy: the wireless device giving the hint (used only for reporting
1987 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
1988 * should be in. If @rd is set this should be NULL. Note that if you
1989 * set this to NULL you should still set rd->alpha2 to some accepted
1992 * Wireless drivers can use this function to hint to the wireless core
1993 * what it believes should be the current regulatory domain by
1994 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
1995 * domain should be in or by providing a completely build regulatory domain.
1996 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
1997 * for a regulatory domain structure for the respective country.
1999 * The wiphy must have been registered to cfg80211 prior to this call.
2000 * For cfg80211 drivers this means you must first use wiphy_register(),
2001 * for mac80211 drivers you must first use ieee80211_register_hw().
2003 * Drivers should check the return value, its possible you can get
2006 extern int regulatory_hint(struct wiphy
*wiphy
, const char *alpha2
);
2009 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
2010 * @wiphy: the wireless device we want to process the regulatory domain on
2011 * @regd: the custom regulatory domain to use for this wiphy
2013 * Drivers can sometimes have custom regulatory domains which do not apply
2014 * to a specific country. Drivers can use this to apply such custom regulatory
2015 * domains. This routine must be called prior to wiphy registration. The
2016 * custom regulatory domain will be trusted completely and as such previous
2017 * default channel settings will be disregarded. If no rule is found for a
2018 * channel on the regulatory domain the channel will be disabled.
2020 extern void wiphy_apply_custom_regulatory(
2021 struct wiphy
*wiphy
,
2022 const struct ieee80211_regdomain
*regd
);
2025 * freq_reg_info - get regulatory information for the given frequency
2026 * @wiphy: the wiphy for which we want to process this rule for
2027 * @center_freq: Frequency in KHz for which we want regulatory information for
2028 * @desired_bw_khz: the desired max bandwidth you want to use per
2029 * channel. Note that this is still 20 MHz if you want to use HT40
2030 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
2031 * If set to 0 we'll assume you want the standard 20 MHz.
2032 * @reg_rule: the regulatory rule which we have for this frequency
2034 * Use this function to get the regulatory rule for a specific frequency on
2035 * a given wireless device. If the device has a specific regulatory domain
2036 * it wants to follow we respect that unless a country IE has been received
2037 * and processed already.
2039 * Returns 0 if it was able to find a valid regulatory rule which does
2040 * apply to the given center_freq otherwise it returns non-zero. It will
2041 * also return -ERANGE if we determine the given center_freq does not even have
2042 * a regulatory rule for a frequency range in the center_freq's band. See
2043 * freq_in_rule_band() for our current definition of a band -- this is purely
2044 * subjective and right now its 802.11 specific.
2046 extern int freq_reg_info(struct wiphy
*wiphy
,
2049 const struct ieee80211_reg_rule
**reg_rule
);
2052 * Temporary wext handlers & helper functions
2054 * In the future cfg80211 will simply assign the entire wext handler
2055 * structure to netdevs it manages, but we're not there yet.
2057 int cfg80211_wext_giwname(struct net_device
*dev
,
2058 struct iw_request_info
*info
,
2059 char *name
, char *extra
);
2060 int cfg80211_wext_siwmode(struct net_device
*dev
, struct iw_request_info
*info
,
2061 u32
*mode
, char *extra
);
2062 int cfg80211_wext_giwmode(struct net_device
*dev
, struct iw_request_info
*info
,
2063 u32
*mode
, char *extra
);
2064 int cfg80211_wext_siwscan(struct net_device
*dev
,
2065 struct iw_request_info
*info
,
2066 union iwreq_data
*wrqu
, char *extra
);
2067 int cfg80211_wext_giwscan(struct net_device
*dev
,
2068 struct iw_request_info
*info
,
2069 struct iw_point
*data
, char *extra
);
2070 int cfg80211_wext_siwmlme(struct net_device
*dev
,
2071 struct iw_request_info
*info
,
2072 struct iw_point
*data
, char *extra
);
2073 int cfg80211_wext_giwrange(struct net_device
*dev
,
2074 struct iw_request_info
*info
,
2075 struct iw_point
*data
, char *extra
);
2076 int cfg80211_wext_siwgenie(struct net_device
*dev
,
2077 struct iw_request_info
*info
,
2078 struct iw_point
*data
, char *extra
);
2079 int cfg80211_wext_siwauth(struct net_device
*dev
,
2080 struct iw_request_info
*info
,
2081 struct iw_param
*data
, char *extra
);
2082 int cfg80211_wext_giwauth(struct net_device
*dev
,
2083 struct iw_request_info
*info
,
2084 struct iw_param
*data
, char *extra
);
2086 int cfg80211_wext_siwfreq(struct net_device
*dev
,
2087 struct iw_request_info
*info
,
2088 struct iw_freq
*freq
, char *extra
);
2089 int cfg80211_wext_giwfreq(struct net_device
*dev
,
2090 struct iw_request_info
*info
,
2091 struct iw_freq
*freq
, char *extra
);
2092 int cfg80211_wext_siwessid(struct net_device
*dev
,
2093 struct iw_request_info
*info
,
2094 struct iw_point
*data
, char *ssid
);
2095 int cfg80211_wext_giwessid(struct net_device
*dev
,
2096 struct iw_request_info
*info
,
2097 struct iw_point
*data
, char *ssid
);
2098 int cfg80211_wext_siwrate(struct net_device
*dev
,
2099 struct iw_request_info
*info
,
2100 struct iw_param
*rate
, char *extra
);
2101 int cfg80211_wext_giwrate(struct net_device
*dev
,
2102 struct iw_request_info
*info
,
2103 struct iw_param
*rate
, char *extra
);
2105 int cfg80211_wext_siwrts(struct net_device
*dev
,
2106 struct iw_request_info
*info
,
2107 struct iw_param
*rts
, char *extra
);
2108 int cfg80211_wext_giwrts(struct net_device
*dev
,
2109 struct iw_request_info
*info
,
2110 struct iw_param
*rts
, char *extra
);
2111 int cfg80211_wext_siwfrag(struct net_device
*dev
,
2112 struct iw_request_info
*info
,
2113 struct iw_param
*frag
, char *extra
);
2114 int cfg80211_wext_giwfrag(struct net_device
*dev
,
2115 struct iw_request_info
*info
,
2116 struct iw_param
*frag
, char *extra
);
2117 int cfg80211_wext_siwretry(struct net_device
*dev
,
2118 struct iw_request_info
*info
,
2119 struct iw_param
*retry
, char *extra
);
2120 int cfg80211_wext_giwretry(struct net_device
*dev
,
2121 struct iw_request_info
*info
,
2122 struct iw_param
*retry
, char *extra
);
2123 int cfg80211_wext_siwencodeext(struct net_device
*dev
,
2124 struct iw_request_info
*info
,
2125 struct iw_point
*erq
, char *extra
);
2126 int cfg80211_wext_siwencode(struct net_device
*dev
,
2127 struct iw_request_info
*info
,
2128 struct iw_point
*erq
, char *keybuf
);
2129 int cfg80211_wext_giwencode(struct net_device
*dev
,
2130 struct iw_request_info
*info
,
2131 struct iw_point
*erq
, char *keybuf
);
2132 int cfg80211_wext_siwtxpower(struct net_device
*dev
,
2133 struct iw_request_info
*info
,
2134 union iwreq_data
*data
, char *keybuf
);
2135 int cfg80211_wext_giwtxpower(struct net_device
*dev
,
2136 struct iw_request_info
*info
,
2137 union iwreq_data
*data
, char *keybuf
);
2138 struct iw_statistics
*cfg80211_wireless_stats(struct net_device
*dev
);
2140 int cfg80211_wext_siwpower(struct net_device
*dev
,
2141 struct iw_request_info
*info
,
2142 struct iw_param
*wrq
, char *extra
);
2143 int cfg80211_wext_giwpower(struct net_device
*dev
,
2144 struct iw_request_info
*info
,
2145 struct iw_param
*wrq
, char *extra
);
2147 int cfg80211_wext_siwap(struct net_device
*dev
,
2148 struct iw_request_info
*info
,
2149 struct sockaddr
*ap_addr
, char *extra
);
2150 int cfg80211_wext_giwap(struct net_device
*dev
,
2151 struct iw_request_info
*info
,
2152 struct sockaddr
*ap_addr
, char *extra
);
2154 int cfg80211_wext_siwpmksa(struct net_device
*dev
,
2155 struct iw_request_info
*info
,
2156 struct iw_point
*data
, char *extra
);
2159 * callbacks for asynchronous cfg80211 methods, notification
2160 * functions and BSS handling helpers
2164 * cfg80211_scan_done - notify that scan finished
2166 * @request: the corresponding scan request
2167 * @aborted: set to true if the scan was aborted for any reason,
2168 * userspace will be notified of that
2170 void cfg80211_scan_done(struct cfg80211_scan_request
*request
, bool aborted
);
2173 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2175 * @wiphy: the wiphy reporting the BSS
2176 * @channel: The channel the frame was received on
2177 * @mgmt: the management frame (probe response or beacon)
2178 * @len: length of the management frame
2179 * @signal: the signal strength, type depends on the wiphy's signal_type
2180 * @gfp: context flags
2182 * This informs cfg80211 that BSS information was found and
2183 * the BSS should be updated/added.
2185 struct cfg80211_bss
*
2186 cfg80211_inform_bss_frame(struct wiphy
*wiphy
,
2187 struct ieee80211_channel
*channel
,
2188 struct ieee80211_mgmt
*mgmt
, size_t len
,
2189 s32 signal
, gfp_t gfp
);
2192 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2194 * @wiphy: the wiphy reporting the BSS
2195 * @channel: The channel the frame was received on
2196 * @bssid: the BSSID of the BSS
2197 * @timestamp: the TSF timestamp sent by the peer
2198 * @capability: the capability field sent by the peer
2199 * @beacon_interval: the beacon interval announced by the peer
2200 * @ie: additional IEs sent by the peer
2201 * @ielen: length of the additional IEs
2202 * @signal: the signal strength, type depends on the wiphy's signal_type
2203 * @gfp: context flags
2205 * This informs cfg80211 that BSS information was found and
2206 * the BSS should be updated/added.
2208 struct cfg80211_bss
*
2209 cfg80211_inform_bss(struct wiphy
*wiphy
,
2210 struct ieee80211_channel
*channel
,
2212 u64 timestamp
, u16 capability
, u16 beacon_interval
,
2213 const u8
*ie
, size_t ielen
,
2214 s32 signal
, gfp_t gfp
);
2216 struct cfg80211_bss
*cfg80211_get_bss(struct wiphy
*wiphy
,
2217 struct ieee80211_channel
*channel
,
2219 const u8
*ssid
, size_t ssid_len
,
2220 u16 capa_mask
, u16 capa_val
);
2221 static inline struct cfg80211_bss
*
2222 cfg80211_get_ibss(struct wiphy
*wiphy
,
2223 struct ieee80211_channel
*channel
,
2224 const u8
*ssid
, size_t ssid_len
)
2226 return cfg80211_get_bss(wiphy
, channel
, NULL
, ssid
, ssid_len
,
2227 WLAN_CAPABILITY_IBSS
, WLAN_CAPABILITY_IBSS
);
2230 struct cfg80211_bss
*cfg80211_get_mesh(struct wiphy
*wiphy
,
2231 struct ieee80211_channel
*channel
,
2232 const u8
*meshid
, size_t meshidlen
,
2234 void cfg80211_put_bss(struct cfg80211_bss
*bss
);
2237 * cfg80211_unlink_bss - unlink BSS from internal data structures
2239 * @bss: the bss to remove
2241 * This function removes the given BSS from the internal data structures
2242 * thereby making it no longer show up in scan results etc. Use this
2243 * function when you detect a BSS is gone. Normally BSSes will also time
2244 * out, so it is not necessary to use this function at all.
2246 void cfg80211_unlink_bss(struct wiphy
*wiphy
, struct cfg80211_bss
*bss
);
2249 * cfg80211_send_rx_auth - notification of processed authentication
2250 * @dev: network device
2251 * @buf: authentication frame (header + body)
2252 * @len: length of the frame data
2254 * This function is called whenever an authentication has been processed in
2255 * station mode. The driver is required to call either this function or
2256 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2257 * call. This function may sleep.
2259 void cfg80211_send_rx_auth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2262 * cfg80211_send_auth_timeout - notification of timed out authentication
2263 * @dev: network device
2264 * @addr: The MAC address of the device with which the authentication timed out
2266 * This function may sleep.
2268 void cfg80211_send_auth_timeout(struct net_device
*dev
, const u8
*addr
);
2271 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
2272 * @dev: network device
2273 * @addr: The MAC address of the device with which the authentication timed out
2275 * When a pending authentication had no action yet, the driver may decide
2276 * to not send a deauth frame, but in that case must calls this function
2277 * to tell cfg80211 about this decision. It is only valid to call this
2278 * function within the deauth() callback.
2280 void __cfg80211_auth_canceled(struct net_device
*dev
, const u8
*addr
);
2283 * cfg80211_send_rx_assoc - notification of processed association
2284 * @dev: network device
2285 * @buf: (re)association response frame (header + body)
2286 * @len: length of the frame data
2288 * This function is called whenever a (re)association response has been
2289 * processed in station mode. The driver is required to call either this
2290 * function or cfg80211_send_assoc_timeout() to indicate the result of
2291 * cfg80211_ops::assoc() call. This function may sleep.
2293 void cfg80211_send_rx_assoc(struct net_device
*dev
, const u8
*buf
, size_t len
);
2296 * cfg80211_send_assoc_timeout - notification of timed out association
2297 * @dev: network device
2298 * @addr: The MAC address of the device with which the association timed out
2300 * This function may sleep.
2302 void cfg80211_send_assoc_timeout(struct net_device
*dev
, const u8
*addr
);
2305 * cfg80211_send_deauth - notification of processed deauthentication
2306 * @dev: network device
2307 * @buf: deauthentication frame (header + body)
2308 * @len: length of the frame data
2310 * This function is called whenever deauthentication has been processed in
2311 * station mode. This includes both received deauthentication frames and
2312 * locally generated ones. This function may sleep.
2314 void cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2317 * __cfg80211_send_deauth - notification of processed deauthentication
2318 * @dev: network device
2319 * @buf: deauthentication frame (header + body)
2320 * @len: length of the frame data
2322 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2324 void __cfg80211_send_deauth(struct net_device
*dev
, const u8
*buf
, size_t len
);
2327 * cfg80211_send_disassoc - notification of processed disassociation
2328 * @dev: network device
2329 * @buf: disassociation response frame (header + body)
2330 * @len: length of the frame data
2332 * This function is called whenever disassociation has been processed in
2333 * station mode. This includes both received disassociation frames and locally
2334 * generated ones. This function may sleep.
2336 void cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
, size_t len
);
2339 * __cfg80211_send_disassoc - notification of processed disassociation
2340 * @dev: network device
2341 * @buf: disassociation response frame (header + body)
2342 * @len: length of the frame data
2344 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2346 void __cfg80211_send_disassoc(struct net_device
*dev
, const u8
*buf
,
2350 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2351 * @dev: network device
2352 * @addr: The source MAC address of the frame
2353 * @key_type: The key type that the received frame used
2354 * @key_id: Key identifier (0..3)
2355 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2356 * @gfp: allocation flags
2358 * This function is called whenever the local MAC detects a MIC failure in a
2359 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
2362 void cfg80211_michael_mic_failure(struct net_device
*dev
, const u8
*addr
,
2363 enum nl80211_key_type key_type
, int key_id
,
2364 const u8
*tsc
, gfp_t gfp
);
2367 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
2369 * @dev: network device
2370 * @bssid: the BSSID of the IBSS joined
2371 * @gfp: allocation flags
2373 * This function notifies cfg80211 that the device joined an IBSS or
2374 * switched to a different BSSID. Before this function can be called,
2375 * either a beacon has to have been received from the IBSS, or one of
2376 * the cfg80211_inform_bss{,_frame} functions must have been called
2377 * with the locally generated beacon -- this guarantees that there is
2378 * always a scan result for this IBSS. cfg80211 will handle the rest.
2380 void cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
, gfp_t gfp
);
2383 * DOC: RFkill integration
2385 * RFkill integration in cfg80211 is almost invisible to drivers,
2386 * as cfg80211 automatically registers an rfkill instance for each
2387 * wireless device it knows about. Soft kill is also translated
2388 * into disconnecting and turning all interfaces off, drivers are
2389 * expected to turn off the device when all interfaces are down.
2391 * However, devices may have a hard RFkill line, in which case they
2392 * also need to interact with the rfkill subsystem, via cfg80211.
2393 * They can do this with a few helper functions documented here.
2397 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
2399 * @blocked: block status
2401 void wiphy_rfkill_set_hw_state(struct wiphy
*wiphy
, bool blocked
);
2404 * wiphy_rfkill_start_polling - start polling rfkill
2407 void wiphy_rfkill_start_polling(struct wiphy
*wiphy
);
2410 * wiphy_rfkill_stop_polling - stop polling rfkill
2413 void wiphy_rfkill_stop_polling(struct wiphy
*wiphy
);
2415 #ifdef CONFIG_NL80211_TESTMODE
2419 * Test mode is a set of utility functions to allow drivers to
2420 * interact with driver-specific tools to aid, for instance,
2421 * factory programming.
2423 * This chapter describes how drivers interact with it, for more
2424 * information see the nl80211 book's chapter on it.
2428 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
2430 * @approxlen: an upper bound of the length of the data that will
2431 * be put into the skb
2433 * This function allocates and pre-fills an skb for a reply to
2434 * the testmode command. Since it is intended for a reply, calling
2435 * it outside of the @testmode_cmd operation is invalid.
2437 * The returned skb (or %NULL if any errors happen) is pre-filled
2438 * with the wiphy index and set up in a way that any data that is
2439 * put into the skb (with skb_put(), nla_put() or similar) will end
2440 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
2441 * needs to be done with the skb is adding data for the corresponding
2442 * userspace tool which can then read that data out of the testdata
2443 * attribute. You must not modify the skb in any other way.
2445 * When done, call cfg80211_testmode_reply() with the skb and return
2446 * its error code as the result of the @testmode_cmd operation.
2448 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
2452 * cfg80211_testmode_reply - send the reply skb
2453 * @skb: The skb, must have been allocated with
2454 * cfg80211_testmode_alloc_reply_skb()
2456 * Returns an error code or 0 on success, since calling this
2457 * function will usually be the last thing before returning
2458 * from the @testmode_cmd you should return the error code.
2459 * Note that this function consumes the skb regardless of the
2462 int cfg80211_testmode_reply(struct sk_buff
*skb
);
2465 * cfg80211_testmode_alloc_event_skb - allocate testmode event
2467 * @approxlen: an upper bound of the length of the data that will
2468 * be put into the skb
2469 * @gfp: allocation flags
2471 * This function allocates and pre-fills an skb for an event on the
2472 * testmode multicast group.
2474 * The returned skb (or %NULL if any errors happen) is set up in the
2475 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
2476 * for an event. As there, you should simply add data to it that will
2477 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
2478 * not modify the skb in any other way.
2480 * When done filling the skb, call cfg80211_testmode_event() with the
2481 * skb to send the event.
2483 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
2484 int approxlen
, gfp_t gfp
);
2487 * cfg80211_testmode_event - send the event
2488 * @skb: The skb, must have been allocated with
2489 * cfg80211_testmode_alloc_event_skb()
2490 * @gfp: allocation flags
2492 * This function sends the given @skb, which must have been allocated
2493 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
2496 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
);
2498 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
2500 #define CFG80211_TESTMODE_CMD(cmd)
2504 * cfg80211_connect_result - notify cfg80211 of connection result
2506 * @dev: network device
2507 * @bssid: the BSSID of the AP
2508 * @req_ie: association request IEs (maybe be %NULL)
2509 * @req_ie_len: association request IEs length
2510 * @resp_ie: association response IEs (may be %NULL)
2511 * @resp_ie_len: assoc response IEs length
2512 * @status: status code, 0 for successful connection, use
2513 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
2514 * the real status code for failures.
2515 * @gfp: allocation flags
2517 * It should be called by the underlying driver whenever connect() has
2520 void cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
2521 const u8
*req_ie
, size_t req_ie_len
,
2522 const u8
*resp_ie
, size_t resp_ie_len
,
2523 u16 status
, gfp_t gfp
);
2526 * cfg80211_roamed - notify cfg80211 of roaming
2528 * @dev: network device
2529 * @bssid: the BSSID of the new AP
2530 * @req_ie: association request IEs (maybe be %NULL)
2531 * @req_ie_len: association request IEs length
2532 * @resp_ie: association response IEs (may be %NULL)
2533 * @resp_ie_len: assoc response IEs length
2534 * @gfp: allocation flags
2536 * It should be called by the underlying driver whenever it roamed
2537 * from one AP to another while connected.
2539 void cfg80211_roamed(struct net_device
*dev
, const u8
*bssid
,
2540 const u8
*req_ie
, size_t req_ie_len
,
2541 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
);
2544 * cfg80211_disconnected - notify cfg80211 that connection was dropped
2546 * @dev: network device
2547 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
2548 * @ie_len: length of IEs
2549 * @reason: reason code for the disconnection, set it to 0 if unknown
2550 * @gfp: allocation flags
2552 * After it calls this function, the driver should enter an idle state
2553 * and not try to connect to any AP any more.
2555 void cfg80211_disconnected(struct net_device
*dev
, u16 reason
,
2556 u8
*ie
, size_t ie_len
, gfp_t gfp
);
2559 * cfg80211_ready_on_channel - notification of remain_on_channel start
2560 * @dev: network device
2561 * @cookie: the request cookie
2562 * @chan: The current channel (from remain_on_channel request)
2563 * @channel_type: Channel type
2564 * @duration: Duration in milliseconds that the driver intents to remain on the
2566 * @gfp: allocation flags
2568 void cfg80211_ready_on_channel(struct net_device
*dev
, u64 cookie
,
2569 struct ieee80211_channel
*chan
,
2570 enum nl80211_channel_type channel_type
,
2571 unsigned int duration
, gfp_t gfp
);
2574 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
2575 * @dev: network device
2576 * @cookie: the request cookie
2577 * @chan: The current channel (from remain_on_channel request)
2578 * @channel_type: Channel type
2579 * @gfp: allocation flags
2581 void cfg80211_remain_on_channel_expired(struct net_device
*dev
,
2583 struct ieee80211_channel
*chan
,
2584 enum nl80211_channel_type channel_type
,
2589 * cfg80211_new_sta - notify userspace about station
2592 * @mac_addr: the station's address
2593 * @sinfo: the station information
2594 * @gfp: allocation flags
2596 void cfg80211_new_sta(struct net_device
*dev
, const u8
*mac_addr
,
2597 struct station_info
*sinfo
, gfp_t gfp
);
2600 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
2601 * @dev: network device
2602 * @freq: Frequency on which the frame was received in MHz
2603 * @buf: Management frame (header + body)
2604 * @len: length of the frame data
2605 * @gfp: context flags
2607 * Returns %true if a user space application has registered for this frame.
2608 * For action frames, that makes it responsible for rejecting unrecognized
2609 * action frames; %false otherwise, in which case for action frames the
2610 * driver is responsible for rejecting the frame.
2612 * This function is called whenever an Action frame is received for a station
2613 * mode interface, but is not processed in kernel.
2615 bool cfg80211_rx_mgmt(struct net_device
*dev
, int freq
, const u8
*buf
,
2616 size_t len
, gfp_t gfp
);
2619 * cfg80211_mgmt_tx_status - notification of TX status for management frame
2620 * @dev: network device
2621 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
2622 * @buf: Management frame (header + body)
2623 * @len: length of the frame data
2624 * @ack: Whether frame was acknowledged
2625 * @gfp: context flags
2627 * This function is called whenever a management frame was requested to be
2628 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
2629 * transmission attempt.
2631 void cfg80211_mgmt_tx_status(struct net_device
*dev
, u64 cookie
,
2632 const u8
*buf
, size_t len
, bool ack
, gfp_t gfp
);
2636 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
2637 * @dev: network device
2638 * @rssi_event: the triggered RSSI event
2639 * @gfp: context flags
2641 * This function is called when a configured connection quality monitoring
2642 * rssi threshold reached event occurs.
2644 void cfg80211_cqm_rssi_notify(struct net_device
*dev
,
2645 enum nl80211_cqm_rssi_threshold_event rssi_event
,
2649 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
2650 * @dev: network device
2651 * @peer: peer's MAC address
2652 * @num_packets: how many packets were lost -- should be a fixed threshold
2653 * but probably no less than maybe 50, or maybe a throughput dependent
2654 * threshold (to account for temporary interference)
2655 * @gfp: context flags
2657 void cfg80211_cqm_pktloss_notify(struct net_device
*dev
,
2658 const u8
*peer
, u32 num_packets
, gfp_t gfp
);
2660 /* Logging, debugging and troubleshooting/diagnostic helpers. */
2662 /* wiphy_printk helpers, similar to dev_printk */
2664 #define wiphy_printk(level, wiphy, format, args...) \
2665 dev_printk(level, &(wiphy)->dev, format, ##args)
2666 #define wiphy_emerg(wiphy, format, args...) \
2667 dev_emerg(&(wiphy)->dev, format, ##args)
2668 #define wiphy_alert(wiphy, format, args...) \
2669 dev_alert(&(wiphy)->dev, format, ##args)
2670 #define wiphy_crit(wiphy, format, args...) \
2671 dev_crit(&(wiphy)->dev, format, ##args)
2672 #define wiphy_err(wiphy, format, args...) \
2673 dev_err(&(wiphy)->dev, format, ##args)
2674 #define wiphy_warn(wiphy, format, args...) \
2675 dev_warn(&(wiphy)->dev, format, ##args)
2676 #define wiphy_notice(wiphy, format, args...) \
2677 dev_notice(&(wiphy)->dev, format, ##args)
2678 #define wiphy_info(wiphy, format, args...) \
2679 dev_info(&(wiphy)->dev, format, ##args)
2681 #define wiphy_debug(wiphy, format, args...) \
2682 wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
2684 #define wiphy_dbg(wiphy, format, args...) \
2685 dev_dbg(&(wiphy)->dev, format, ##args)
2687 #if defined(VERBOSE_DEBUG)
2688 #define wiphy_vdbg wiphy_dbg
2690 #define wiphy_vdbg(wiphy, format, args...) \
2693 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \
2699 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
2700 * of using a WARN/WARN_ON to get the message out, including the
2701 * file/line information and a backtrace.
2703 #define wiphy_WARN(wiphy, format, args...) \
2704 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
2706 #endif /* __NET_CFG80211_H */