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>
29 * wireless hardware capability structures
33 * enum ieee80211_band - supported frequency bands
35 * The bands are assigned this way because the supported
36 * bitrates differ in these bands.
38 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
39 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
40 * @IEEE80211_NUM_BANDS: number of defined bands
43 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
44 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
51 * enum ieee80211_channel_flags - channel flags
53 * Channel flags set by the regulatory control code.
55 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
56 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
58 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
59 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
60 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
62 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
65 enum ieee80211_channel_flags {
66 IEEE80211_CHAN_DISABLED = 1<<0,
67 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
68 IEEE80211_CHAN_NO_IBSS = 1<<2,
69 IEEE80211_CHAN_RADAR = 1<<3,
70 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
71 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
74 #define IEEE80211_CHAN_NO_HT40 \
75 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
78 * struct ieee80211_channel - channel definition
80 * This structure describes a single channel for use
83 * @center_freq: center frequency in MHz
84 * @hw_value: hardware-specific value for the channel
85 * @flags: channel flags from &enum ieee80211_channel_flags.
86 * @orig_flags: channel flags at registration time, used by regulatory
87 * code to support devices with additional restrictions
88 * @band: band this channel belongs to.
89 * @max_antenna_gain: maximum antenna gain in dBi
90 * @max_power: maximum transmission power (in dBm)
91 * @beacon_found: helper to regulatory code to indicate when a beacon
92 * has been found on this channel. Use regulatory_hint_found_beacon()
93 * to enable this, this is useful only on 5 GHz band.
94 * @orig_mag: internal use
95 * @orig_mpwr: internal use
97 struct ieee80211_channel {
98 enum ieee80211_band band;
102 int max_antenna_gain;
106 int orig_mag, orig_mpwr;
110 * enum ieee80211_rate_flags - rate flags
112 * Hardware/specification flags for rates. These are structured
113 * in a way that allows using the same bitrate structure for
114 * different bands/PHY modes.
116 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
117 * preamble on this bitrate; only relevant in 2.4GHz band and
119 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
120 * when used with 802.11a (on the 5 GHz band); filled by the
121 * core code when registering the wiphy.
122 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
123 * when used with 802.11b (on the 2.4 GHz band); filled by the
124 * core code when registering the wiphy.
125 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
126 * when used with 802.11g (on the 2.4 GHz band); filled by the
127 * core code when registering the wiphy.
128 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
130 enum ieee80211_rate_flags {
131 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
132 IEEE80211_RATE_MANDATORY_A = 1<<1,
133 IEEE80211_RATE_MANDATORY_B = 1<<2,
134 IEEE80211_RATE_MANDATORY_G = 1<<3,
135 IEEE80211_RATE_ERP_G = 1<<4,
139 * struct ieee80211_rate - bitrate definition
141 * This structure describes a bitrate that an 802.11 PHY can
142 * operate with. The two values @hw_value and @hw_value_short
143 * are only for driver use when pointers to this structure are
146 * @flags: rate-specific flags
147 * @bitrate: bitrate in units of 100 Kbps
148 * @hw_value: driver/hardware value for this rate
149 * @hw_value_short: driver/hardware value for this rate when
150 * short preamble is used
152 struct ieee80211_rate {
155 u16 hw_value, hw_value_short;
159 * struct ieee80211_sta_ht_cap - STA's HT capabilities
161 * This structure describes most essential parameters needed
162 * to describe 802.11n HT capabilities for an STA.
164 * @ht_supported: is HT supported by the STA
165 * @cap: HT capabilities map as described in 802.11n spec
166 * @ampdu_factor: Maximum A-MPDU length factor
167 * @ampdu_density: Minimum A-MPDU spacing
168 * @mcs: Supported MCS rates
170 struct ieee80211_sta_ht_cap {
171 u16 cap; /* use IEEE80211_HT_CAP_ */
175 struct ieee80211_mcs_info mcs;
179 * struct ieee80211_supported_band - frequency band definition
181 * This structure describes a frequency band a wiphy
182 * is able to operate in.
184 * @channels: Array of channels the hardware can operate in
186 * @band: the band this structure represents
187 * @n_channels: Number of channels in @channels
188 * @bitrates: Array of bitrates the hardware can operate with
189 * in this band. Must be sorted to give a valid "supported
190 * rates" IE, i.e. CCK rates first, then OFDM.
191 * @n_bitrates: Number of bitrates in @bitrates
192 * @ht_cap: HT capabilities in this band
194 struct ieee80211_supported_band {
195 struct ieee80211_channel *channels;
196 struct ieee80211_rate *bitrates;
197 enum ieee80211_band band;
200 struct ieee80211_sta_ht_cap ht_cap;
204 * Wireless hardware/device configuration structures and methods
208 * struct vif_params - describes virtual interface parameters
209 * @mesh_id: mesh ID to use
210 * @mesh_id_len: length of the mesh ID
211 * @use_4addr: use 4-address frames
220 * struct key_params - key information
222 * Information about a key
225 * @key_len: length of key material
226 * @cipher: cipher suite selector
227 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
228 * with the get_key() callback, must be in little endian,
229 * length given by @seq_len.
230 * @seq_len: length of @seq.
241 * enum survey_info_flags - survey information flags
243 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
245 * Used by the driver to indicate which info in &struct survey_info
246 * it has filled in during the get_survey().
248 enum survey_info_flags {
249 SURVEY_INFO_NOISE_DBM = 1<<0,
253 * struct survey_info - channel survey response
255 * @channel: the channel this survey record reports, mandatory
256 * @filled: bitflag of flags from &enum survey_info_flags
257 * @noise: channel noise in dBm. This and all following fields are
260 * Used by dump_survey() to report back per-channel survey information.
262 * This structure can later be expanded with things like
263 * channel duty cycle etc.
266 struct ieee80211_channel *channel;
272 * struct beacon_parameters - beacon parameters
274 * Used to configure the beacon for an interface.
276 * @head: head portion of beacon (before TIM IE)
277 * or %NULL if not changed
278 * @tail: tail portion of beacon (after TIM IE)
279 * or %NULL if not changed
280 * @interval: beacon interval or zero if not changed
281 * @dtim_period: DTIM period or zero if not changed
282 * @head_len: length of @head
283 * @tail_len: length of @tail
285 struct beacon_parameters {
287 int interval, dtim_period;
288 int head_len, tail_len;
292 * enum plink_action - actions to perform in mesh peers
294 * @PLINK_ACTION_INVALID: action 0 is reserved
295 * @PLINK_ACTION_OPEN: start mesh peer link establishment
296 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
299 PLINK_ACTION_INVALID,
305 * struct station_parameters - station parameters
307 * Used to change and create a new station.
309 * @vlan: vlan interface station should belong to
310 * @supported_rates: supported rates in IEEE 802.11 format
311 * (or NULL for no change)
312 * @supported_rates_len: number of supported rates
313 * @sta_flags_mask: station flags that changed
314 * (bitmask of BIT(NL80211_STA_FLAG_...))
315 * @sta_flags_set: station flags values
316 * (bitmask of BIT(NL80211_STA_FLAG_...))
317 * @listen_interval: listen interval or -1 for no change
318 * @aid: AID or zero for no change
319 * @plink_action: plink action to take
320 * @ht_capa: HT capabilities of station
322 struct station_parameters {
324 struct net_device *vlan;
325 u32 sta_flags_mask, sta_flags_set;
328 u8 supported_rates_len;
330 struct ieee80211_ht_cap *ht_capa;
334 * enum station_info_flags - station information flags
336 * Used by the driver to indicate which info in &struct station_info
337 * it has filled in during get_station() or dump_station().
339 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
340 * @STATION_INFO_RX_BYTES: @rx_bytes filled
341 * @STATION_INFO_TX_BYTES: @tx_bytes filled
342 * @STATION_INFO_LLID: @llid filled
343 * @STATION_INFO_PLID: @plid filled
344 * @STATION_INFO_PLINK_STATE: @plink_state filled
345 * @STATION_INFO_SIGNAL: @signal filled
346 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
347 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
348 * @STATION_INFO_RX_PACKETS: @rx_packets filled
349 * @STATION_INFO_TX_PACKETS: @tx_packets filled
351 enum station_info_flags {
352 STATION_INFO_INACTIVE_TIME = 1<<0,
353 STATION_INFO_RX_BYTES = 1<<1,
354 STATION_INFO_TX_BYTES = 1<<2,
355 STATION_INFO_LLID = 1<<3,
356 STATION_INFO_PLID = 1<<4,
357 STATION_INFO_PLINK_STATE = 1<<5,
358 STATION_INFO_SIGNAL = 1<<6,
359 STATION_INFO_TX_BITRATE = 1<<7,
360 STATION_INFO_RX_PACKETS = 1<<8,
361 STATION_INFO_TX_PACKETS = 1<<9,
365 * enum station_info_rate_flags - bitrate info flags
367 * Used by the driver to indicate the specific rate transmission
368 * type for 802.11n transmissions.
370 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
371 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
372 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
374 enum rate_info_flags {
375 RATE_INFO_FLAGS_MCS = 1<<0,
376 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
377 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
381 * struct rate_info - bitrate information
383 * Information about a receiving or transmitting bitrate
385 * @flags: bitflag of flags from &enum rate_info_flags
386 * @mcs: mcs index if struct describes a 802.11n bitrate
387 * @legacy: bitrate in 100kbit/s for 802.11abg
396 * struct station_info - station information
398 * Station information filled by driver for get_station() and dump_station.
400 * @filled: bitflag of flags from &enum station_info_flags
401 * @inactive_time: time since last station activity (tx/rx) in milliseconds
402 * @rx_bytes: bytes received from this station
403 * @tx_bytes: bytes transmitted to this station
404 * @llid: mesh local link id
405 * @plid: mesh peer link id
406 * @plink_state: mesh peer link state
407 * @signal: signal strength of last received packet in dBm
408 * @txrate: current unicast bitrate to this station
409 * @rx_packets: packets received from this station
410 * @tx_packets: packets transmitted to this station
411 * @generation: generation number for nl80211 dumps.
412 * This number should increase every time the list of stations
413 * changes, i.e. when a station is added or removed, so that
414 * userspace can tell whether it got a consistent snapshot.
416 struct station_info {
425 struct rate_info txrate;
433 * enum monitor_flags - monitor flags
435 * Monitor interface configuration flags. Note that these must be the bits
436 * according to the nl80211 flags.
438 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
439 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
440 * @MONITOR_FLAG_CONTROL: pass control frames
441 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
442 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
445 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
446 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
447 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
448 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
449 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
453 * enum mpath_info_flags - mesh path information flags
455 * Used by the driver to indicate which info in &struct mpath_info it has filled
456 * in during get_station() or dump_station().
458 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
459 * @MPATH_INFO_SN: @sn filled
460 * @MPATH_INFO_METRIC: @metric filled
461 * @MPATH_INFO_EXPTIME: @exptime filled
462 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
463 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
464 * @MPATH_INFO_FLAGS: @flags filled
466 enum mpath_info_flags {
467 MPATH_INFO_FRAME_QLEN = BIT(0),
468 MPATH_INFO_SN = BIT(1),
469 MPATH_INFO_METRIC = BIT(2),
470 MPATH_INFO_EXPTIME = BIT(3),
471 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
472 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
473 MPATH_INFO_FLAGS = BIT(6),
477 * struct mpath_info - mesh path information
479 * Mesh path information filled by driver for get_mpath() and dump_mpath().
481 * @filled: bitfield of flags from &enum mpath_info_flags
482 * @frame_qlen: number of queued frames for this destination
483 * @sn: target sequence number
484 * @metric: metric (cost) of this mesh path
485 * @exptime: expiration time for the mesh path from now, in msecs
486 * @flags: mesh path flags
487 * @discovery_timeout: total mesh path discovery timeout, in msecs
488 * @discovery_retries: mesh path discovery retries
489 * @generation: generation number for nl80211 dumps.
490 * This number should increase every time the list of mesh paths
491 * changes, i.e. when a station is added or removed, so that
492 * userspace can tell whether it got a consistent snapshot.
500 u32 discovery_timeout;
501 u8 discovery_retries;
508 * struct bss_parameters - BSS parameters
510 * Used to change BSS parameters (mainly for AP mode).
512 * @use_cts_prot: Whether to use CTS protection
513 * (0 = no, 1 = yes, -1 = do not change)
514 * @use_short_preamble: Whether the use of short preambles is allowed
515 * (0 = no, 1 = yes, -1 = do not change)
516 * @use_short_slot_time: Whether the use of short slot time is allowed
517 * (0 = no, 1 = yes, -1 = do not change)
518 * @basic_rates: basic rates in IEEE 802.11 format
519 * (or NULL for no change)
520 * @basic_rates_len: number of basic rates
521 * @ap_isolate: do not forward packets between connected stations
523 struct bss_parameters {
525 int use_short_preamble;
526 int use_short_slot_time;
534 /* Mesh plink management parameters */
535 u16 dot11MeshRetryTimeout;
536 u16 dot11MeshConfirmTimeout;
537 u16 dot11MeshHoldingTimeout;
538 u16 dot11MeshMaxPeerLinks;
539 u8 dot11MeshMaxRetries;
541 bool auto_open_plinks;
542 /* HWMP parameters */
543 u8 dot11MeshHWMPmaxPREQretries;
544 u32 path_refresh_time;
545 u16 min_discovery_timeout;
546 u32 dot11MeshHWMPactivePathTimeout;
547 u16 dot11MeshHWMPpreqMinInterval;
548 u16 dot11MeshHWMPnetDiameterTraversalTime;
549 u8 dot11MeshHWMPRootMode;
553 * struct ieee80211_txq_params - TX queue parameters
554 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
555 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
556 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
558 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
560 * @aifs: Arbitration interframe space [0..255]
562 struct ieee80211_txq_params {
563 enum nl80211_txq_q queue;
570 /* from net/wireless.h */
573 /* from net/ieee80211.h */
574 struct ieee80211_channel;
577 * struct cfg80211_ssid - SSID description
579 * @ssid_len: length of the ssid
581 struct cfg80211_ssid {
582 u8 ssid[IEEE80211_MAX_SSID_LEN];
587 * struct cfg80211_scan_request - scan request description
589 * @ssids: SSIDs to scan for (active scan only)
590 * @n_ssids: number of SSIDs
591 * @channels: channels to scan on.
592 * @n_channels: total number of channels to scan
593 * @ie: optional information element(s) to add into Probe Request or %NULL
594 * @ie_len: length of ie in octets
595 * @wiphy: the wiphy this was for
596 * @dev: the interface
597 * @aborted: (internal) scan request was notified as aborted
599 struct cfg80211_scan_request {
600 struct cfg80211_ssid *ssids;
608 struct net_device *dev;
612 struct ieee80211_channel *channels[0];
616 * enum cfg80211_signal_type - signal type
618 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
619 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
620 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
622 enum cfg80211_signal_type {
623 CFG80211_SIGNAL_TYPE_NONE,
624 CFG80211_SIGNAL_TYPE_MBM,
625 CFG80211_SIGNAL_TYPE_UNSPEC,
629 * struct cfg80211_bss - BSS description
631 * This structure describes a BSS (which may also be a mesh network)
632 * for use in scan results and similar.
634 * @channel: channel this BSS is on
635 * @bssid: BSSID of the BSS
636 * @tsf: timestamp of last received update
637 * @beacon_interval: the beacon interval as from the frame
638 * @capability: the capability field in host byte order
639 * @information_elements: the information elements (Note that there
640 * is no guarantee that these are well-formed!); this is a pointer to
641 * either the beacon_ies or proberesp_ies depending on whether Probe
642 * Response frame has been received
643 * @len_information_elements: total length of the information elements
644 * @beacon_ies: the information elements from the last Beacon frame
645 * @len_beacon_ies: total length of the beacon_ies
646 * @proberesp_ies: the information elements from the last Probe Response frame
647 * @len_proberesp_ies: total length of the proberesp_ies
648 * @signal: signal strength value (type depends on the wiphy's signal_type)
649 * @free_priv: function pointer to free private data
650 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
652 struct cfg80211_bss {
653 struct ieee80211_channel *channel;
659 u8 *information_elements;
660 size_t len_information_elements;
662 size_t len_beacon_ies;
664 size_t len_proberesp_ies;
668 void (*free_priv)(struct cfg80211_bss *bss);
669 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
673 * ieee80211_bss_get_ie - find IE with given ID
674 * @bss: the bss to search
676 * Returns %NULL if not found.
678 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
682 * struct cfg80211_crypto_settings - Crypto settings
683 * @wpa_versions: indicates which, if any, WPA versions are enabled
684 * (from enum nl80211_wpa_versions)
685 * @cipher_group: group key cipher suite (or 0 if unset)
686 * @n_ciphers_pairwise: number of AP supported unicast ciphers
687 * @ciphers_pairwise: unicast key cipher suites
688 * @n_akm_suites: number of AKM suites
689 * @akm_suites: AKM suites
690 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
691 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
692 * required to assume that the port is unauthorized until authorized by
693 * user space. Otherwise, port is marked authorized by default.
695 struct cfg80211_crypto_settings {
698 int n_ciphers_pairwise;
699 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
701 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
706 * struct cfg80211_auth_request - Authentication request data
708 * This structure provides information needed to complete IEEE 802.11
711 * @bss: The BSS to authenticate with.
712 * @auth_type: Authentication type (algorithm)
713 * @ie: Extra IEs to add to Authentication frame or %NULL
714 * @ie_len: Length of ie buffer in octets
715 * @key_len: length of WEP key for shared key authentication
716 * @key_idx: index of WEP key for shared key authentication
717 * @key: WEP key for shared key authentication
718 * @local_state_change: This is a request for a local state only, i.e., no
719 * Authentication frame is to be transmitted and authentication state is
720 * to be changed without having to wait for a response from the peer STA
723 struct cfg80211_auth_request {
724 struct cfg80211_bss *bss;
727 enum nl80211_auth_type auth_type;
730 bool local_state_change;
734 * struct cfg80211_assoc_request - (Re)Association request data
736 * This structure provides information needed to complete IEEE 802.11
738 * @bss: The BSS to associate with.
739 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
740 * @ie_len: Length of ie buffer in octets
741 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
742 * @crypto: crypto settings
743 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
745 struct cfg80211_assoc_request {
746 struct cfg80211_bss *bss;
747 const u8 *ie, *prev_bssid;
749 struct cfg80211_crypto_settings crypto;
754 * struct cfg80211_deauth_request - Deauthentication request data
756 * This structure provides information needed to complete IEEE 802.11
759 * @bss: the BSS to deauthenticate from
760 * @ie: Extra IEs to add to Deauthentication frame or %NULL
761 * @ie_len: Length of ie buffer in octets
762 * @reason_code: The reason code for the deauthentication
763 * @local_state_change: This is a request for a local state only, i.e., no
764 * Deauthentication frame is to be transmitted.
766 struct cfg80211_deauth_request {
767 struct cfg80211_bss *bss;
771 bool local_state_change;
775 * struct cfg80211_disassoc_request - Disassociation request data
777 * This structure provides information needed to complete IEEE 802.11
780 * @bss: the BSS to disassociate from
781 * @ie: Extra IEs to add to Disassociation frame or %NULL
782 * @ie_len: Length of ie buffer in octets
783 * @reason_code: The reason code for the disassociation
784 * @local_state_change: This is a request for a local state only, i.e., no
785 * Disassociation frame is to be transmitted.
787 struct cfg80211_disassoc_request {
788 struct cfg80211_bss *bss;
792 bool local_state_change;
796 * struct cfg80211_ibss_params - IBSS parameters
798 * This structure defines the IBSS parameters for the join_ibss()
801 * @ssid: The SSID, will always be non-null.
802 * @ssid_len: The length of the SSID, will always be non-zero.
803 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
804 * search for IBSSs with a different BSSID.
805 * @channel: The channel to use if no IBSS can be found to join.
806 * @channel_fixed: The channel should be fixed -- do not search for
807 * IBSSs to join on other channels.
808 * @ie: information element(s) to include in the beacon
809 * @ie_len: length of that
810 * @beacon_interval: beacon interval to use
811 * @privacy: this is a protected network, keys will be configured
814 struct cfg80211_ibss_params {
817 struct ieee80211_channel *channel;
826 * struct cfg80211_connect_params - Connection parameters
828 * This structure provides information needed to complete IEEE 802.11
829 * authentication and association.
831 * @channel: The channel to use or %NULL if not specified (auto-select based
833 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
836 * @ssid_len: Length of ssid in octets
837 * @auth_type: Authentication type (algorithm)
838 * @ie: IEs for association request
839 * @ie_len: Length of assoc_ie in octets
840 * @privacy: indicates whether privacy-enabled APs should be used
841 * @crypto: crypto settings
842 * @key_len: length of WEP key for shared key authentication
843 * @key_idx: index of WEP key for shared key authentication
844 * @key: WEP key for shared key authentication
846 struct cfg80211_connect_params {
847 struct ieee80211_channel *channel;
851 enum nl80211_auth_type auth_type;
855 struct cfg80211_crypto_settings crypto;
861 * enum wiphy_params_flags - set_wiphy_params bitfield values
862 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
863 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
864 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
865 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
866 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
868 enum wiphy_params_flags {
869 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
870 WIPHY_PARAM_RETRY_LONG = 1 << 1,
871 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
872 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
873 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
877 * enum tx_power_setting - TX power adjustment
879 * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
880 * @TX_POWER_LIMITED: limit TX power by the dbm parameter
881 * @TX_POWER_FIXED: fix TX power to the dbm parameter
883 enum tx_power_setting {
890 * cfg80211_bitrate_mask - masks for bitrate control
892 struct cfg80211_bitrate_mask {
895 /* TODO: add support for masking MCS rates; e.g.: */
896 /* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */
897 } control[IEEE80211_NUM_BANDS];
900 * struct cfg80211_pmksa - PMK Security Association
902 * This structure is passed to the set/del_pmksa() method for PMKSA
905 * @bssid: The AP's BSSID.
906 * @pmkid: The PMK material itself.
908 struct cfg80211_pmksa {
914 * struct cfg80211_ops - backend description for wireless configuration
916 * This struct is registered by fullmac card drivers and/or wireless stacks
917 * in order to handle configuration requests on their interfaces.
919 * All callbacks except where otherwise noted should return 0
920 * on success or a negative error code.
922 * All operations are currently invoked under rtnl for consistency with the
923 * wireless extensions but this is subject to reevaluation as soon as this
924 * code is used more widely and we have a first user without wext.
926 * @suspend: wiphy device needs to be suspended
927 * @resume: wiphy device needs to be resumed
929 * @add_virtual_intf: create a new virtual interface with the given name,
930 * must set the struct wireless_dev's iftype. Beware: You must create
931 * the new netdev in the wiphy's network namespace!
933 * @del_virtual_intf: remove the virtual interface determined by ifindex.
935 * @change_virtual_intf: change type/configuration of virtual interface,
936 * keep the struct wireless_dev's iftype updated.
938 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
939 * when adding a group key.
941 * @get_key: get information about the key with the given parameters.
942 * @mac_addr will be %NULL when requesting information for a group
943 * key. All pointers given to the @callback function need not be valid
944 * after it returns. This function should return an error if it is
945 * not possible to retrieve the key, -ENOENT if it doesn't exist.
947 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
948 * and @key_index, return -ENOENT if the key doesn't exist.
950 * @set_default_key: set the default key on an interface
952 * @set_default_mgmt_key: set the default management frame key on an interface
954 * @add_beacon: Add a beacon with given parameters, @head, @interval
955 * and @dtim_period will be valid, @tail is optional.
956 * @set_beacon: Change the beacon parameters for an access point mode
957 * interface. This should reject the call when no beacon has been
959 * @del_beacon: Remove beacon configuration and stop sending the beacon.
961 * @add_station: Add a new station.
962 * @del_station: Remove a station; @mac may be NULL to remove all stations.
963 * @change_station: Modify a given station.
964 * @get_station: get station information for the station identified by @mac
965 * @dump_station: dump station callback -- resume dump at index @idx
967 * @add_mpath: add a fixed mesh path
968 * @del_mpath: delete a given mesh path
969 * @change_mpath: change a given mesh path
970 * @get_mpath: get a mesh path for the given parameters
971 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
973 * @get_mesh_params: Put the current mesh parameters into *params
975 * @set_mesh_params: Set mesh parameters.
976 * The mask is a bitfield which tells us which parameters to
977 * set, and which to leave alone.
979 * @change_bss: Modify parameters for a given BSS.
981 * @set_txq_params: Set TX queue parameters
983 * @set_channel: Set channel for a given wireless interface. Some devices
984 * may support multi-channel operation (by channel hopping) so cfg80211
985 * doesn't verify much. Note, however, that the passed netdev may be
986 * %NULL as well if the user requested changing the channel for the
987 * device itself, or for a monitor interface.
989 * @scan: Request to do a scan. If returning zero, the scan request is given
990 * the driver, and will be valid until passed to cfg80211_scan_done().
991 * For scan results, call cfg80211_inform_bss(); you can call this outside
992 * the scan/scan_done bracket too.
994 * @auth: Request to authenticate with the specified peer
995 * @assoc: Request to (re)associate with the specified peer
996 * @deauth: Request to deauthenticate from the specified peer
997 * @disassoc: Request to disassociate from the specified peer
999 * @connect: Connect to the ESS with the specified parameters. When connected,
1000 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
1001 * If the connection fails for some reason, call cfg80211_connect_result()
1002 * with the status from the AP.
1003 * @disconnect: Disconnect from the BSS/ESS.
1005 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
1006 * cfg80211_ibss_joined(), also call that function when changing BSSID due
1008 * @leave_ibss: Leave the IBSS.
1010 * @set_wiphy_params: Notify that wiphy parameters have changed;
1011 * @changed bitfield (see &enum wiphy_params_flags) describes which values
1012 * have changed. The actual parameter values are available in
1013 * struct wiphy. If returning an error, no value should be changed.
1015 * @set_tx_power: set the transmit power according to the parameters
1016 * @get_tx_power: store the current TX power into the dbm variable;
1017 * return 0 if successful
1019 * @set_wds_peer: set the WDS peer for a WDS interface
1021 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
1022 * functions to adjust rfkill hw state
1024 * @dump_survey: get site survey information.
1026 * @remain_on_channel: Request the driver to remain awake on the specified
1027 * channel for the specified duration to complete an off-channel
1028 * operation (e.g., public action frame exchange). When the driver is
1029 * ready on the requested channel, it must indicate this with an event
1030 * notification by calling cfg80211_ready_on_channel().
1031 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
1032 * This allows the operation to be terminated prior to timeout based on
1033 * the duration value.
1034 * @action: Transmit an action frame
1036 * @testmode_cmd: run a test mode command
1038 * @set_bitrate_mask: set the bitrate mask configuration
1040 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
1041 * devices running firmwares capable of generating the (re) association
1042 * RSN IE. It allows for faster roaming between WPA2 BSSIDs.
1043 * @del_pmksa: Delete a cached PMKID.
1044 * @flush_pmksa: Flush all cached PMKIDs.
1045 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
1046 * allows the driver to adjust the dynamic ps timeout value.
1047 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1050 struct cfg80211_ops {
1051 int (*suspend)(struct wiphy *wiphy);
1052 int (*resume)(struct wiphy *wiphy);
1054 int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
1055 enum nl80211_iftype type, u32 *flags,
1056 struct vif_params *params);
1057 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
1058 int (*change_virtual_intf)(struct wiphy *wiphy,
1059 struct net_device *dev,
1060 enum nl80211_iftype type, u32 *flags,
1061 struct vif_params *params);
1063 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1064 u8 key_index, const u8 *mac_addr,
1065 struct key_params *params);
1066 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1067 u8 key_index, const u8 *mac_addr, void *cookie,
1068 void (*callback)(void *cookie, struct key_params*));
1069 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1070 u8 key_index, const u8 *mac_addr);
1071 int (*set_default_key)(struct wiphy *wiphy,
1072 struct net_device *netdev,
1074 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1075 struct net_device *netdev,
1078 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
1079 struct beacon_parameters *info);
1080 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
1081 struct beacon_parameters *info);
1082 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
1085 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1086 u8 *mac, struct station_parameters *params);
1087 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1089 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1090 u8 *mac, struct station_parameters *params);
1091 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1092 u8 *mac, struct station_info *sinfo);
1093 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1094 int idx, u8 *mac, struct station_info *sinfo);
1096 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1097 u8 *dst, u8 *next_hop);
1098 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1100 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1101 u8 *dst, u8 *next_hop);
1102 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1103 u8 *dst, u8 *next_hop,
1104 struct mpath_info *pinfo);
1105 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1106 int idx, u8 *dst, u8 *next_hop,
1107 struct mpath_info *pinfo);
1108 int (*get_mesh_params)(struct wiphy *wiphy,
1109 struct net_device *dev,
1110 struct mesh_config *conf);
1111 int (*set_mesh_params)(struct wiphy *wiphy,
1112 struct net_device *dev,
1113 const struct mesh_config *nconf, u32 mask);
1114 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1115 struct bss_parameters *params);
1117 int (*set_txq_params)(struct wiphy *wiphy,
1118 struct ieee80211_txq_params *params);
1120 int (*set_channel)(struct wiphy *wiphy, struct net_device *dev,
1121 struct ieee80211_channel *chan,
1122 enum nl80211_channel_type channel_type);
1124 int (*scan)(struct wiphy *wiphy, struct net_device *dev,
1125 struct cfg80211_scan_request *request);
1127 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1128 struct cfg80211_auth_request *req);
1129 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1130 struct cfg80211_assoc_request *req);
1131 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1132 struct cfg80211_deauth_request *req,
1134 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1135 struct cfg80211_disassoc_request *req,
1138 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1139 struct cfg80211_connect_params *sme);
1140 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1143 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1144 struct cfg80211_ibss_params *params);
1145 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1147 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1149 int (*set_tx_power)(struct wiphy *wiphy,
1150 enum tx_power_setting type, int dbm);
1151 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1153 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1156 void (*rfkill_poll)(struct wiphy *wiphy);
1158 #ifdef CONFIG_NL80211_TESTMODE
1159 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1162 int (*set_bitrate_mask)(struct wiphy *wiphy,
1163 struct net_device *dev,
1165 const struct cfg80211_bitrate_mask *mask);
1167 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1168 int idx, struct survey_info *info);
1170 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1171 struct cfg80211_pmksa *pmksa);
1172 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
1173 struct cfg80211_pmksa *pmksa);
1174 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
1176 int (*remain_on_channel)(struct wiphy *wiphy,
1177 struct net_device *dev,
1178 struct ieee80211_channel *chan,
1179 enum nl80211_channel_type channel_type,
1180 unsigned int duration,
1182 int (*cancel_remain_on_channel)(struct wiphy *wiphy,
1183 struct net_device *dev,
1186 int (*action)(struct wiphy *wiphy, struct net_device *dev,
1187 struct ieee80211_channel *chan,
1188 enum nl80211_channel_type channel_type,
1189 bool channel_type_valid,
1190 const u8 *buf, size_t len, u64 *cookie);
1192 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1193 bool enabled, int timeout);
1195 int (*set_cqm_rssi_config)(struct wiphy *wiphy,
1196 struct net_device *dev,
1197 s32 rssi_thold, u32 rssi_hyst);
1201 * wireless hardware and networking interfaces structures
1202 * and registration/helper functions
1206 * enum wiphy_flags - wiphy capability flags
1208 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1209 * has its own custom regulatory domain and cannot identify the
1210 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1211 * we will disregard the first regulatory hint (when the
1212 * initiator is %REGDOM_SET_BY_CORE).
1213 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1214 * ignore regulatory domain settings until it gets its own regulatory
1215 * domain via its regulatory_hint(). After its gets its own regulatory
1216 * domain it will only allow further regulatory domain settings to
1217 * further enhance compliance. For example if channel 13 and 14 are
1218 * disabled by this regulatory domain no user regulatory domain can
1219 * enable these channels at a later time. This can be used for devices
1220 * which do not have calibration information gauranteed for frequencies
1221 * or settings outside of its regulatory domain.
1222 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1223 * that passive scan flags and beaconing flags may not be lifted by
1224 * cfg80211 due to regulatory beacon hints. For more information on beacon
1225 * hints read the documenation for regulatory_hint_found_beacon()
1226 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1228 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1229 * by default -- this flag will be set depending on the kernel's default
1230 * on wiphy_new(), but can be changed by the driver if it has a good
1231 * reason to override the default
1232 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1233 * on a VLAN interface)
1234 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1237 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
1238 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
1239 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
1240 WIPHY_FLAG_NETNS_OK = BIT(3),
1241 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
1242 WIPHY_FLAG_4ADDR_AP = BIT(5),
1243 WIPHY_FLAG_4ADDR_STATION = BIT(6),
1246 struct mac_address {
1251 * struct wiphy - wireless hardware description
1252 * @reg_notifier: the driver's regulatory notification callback
1253 * @regd: the driver's regulatory domain, if one was requested via
1254 * the regulatory_hint() API. This can be used by the driver
1255 * on the reg_notifier() if it chooses to ignore future
1256 * regulatory domain changes caused by other drivers.
1257 * @signal_type: signal type reported in &struct cfg80211_bss.
1258 * @cipher_suites: supported cipher suites
1259 * @n_cipher_suites: number of supported cipher suites
1260 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1261 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1262 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1263 * -1 = fragmentation disabled, only odd values >= 256 used
1264 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1265 * @_net: the network namespace this wiphy currently lives in
1266 * @perm_addr: permanent MAC address of this device
1267 * @addr_mask: If the device supports multiple MAC addresses by masking,
1268 * set this to a mask with variable bits set to 1, e.g. if the last
1269 * four bits are variable then set it to 00:...:00:0f. The actual
1270 * variable bits shall be determined by the interfaces added, with
1271 * interfaces not matching the mask being rejected to be brought up.
1272 * @n_addresses: number of addresses in @addresses.
1273 * @addresses: If the device has more than one address, set this pointer
1274 * to a list of addresses (6 bytes each). The first one will be used
1275 * by default for perm_addr. In this case, the mask should be set to
1276 * all-zeroes. In this case it is assumed that the device can handle
1277 * the same number of arbitrary MAC addresses.
1278 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
1279 * automatically on wiphy renames
1280 * @dev: (virtual) struct device for this wiphy
1281 * @wext: wireless extension handlers
1282 * @priv: driver private data (sized according to wiphy_new() parameter)
1283 * @interface_modes: bitmask of interfaces types valid for this wiphy,
1284 * must be set by driver
1285 * @flags: wiphy flags, see &enum wiphy_flags
1286 * @bss_priv_size: each BSS struct has private data allocated with it,
1287 * this variable determines its size
1288 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
1290 * @max_scan_ie_len: maximum length of user-controlled IEs device can
1291 * add to probe request frames transmitted during a scan, must not
1292 * include fixed IEs like supported rates
1293 * @coverage_class: current coverage class
1294 * @fw_version: firmware version for ethtool reporting
1295 * @hw_version: hardware version for ethtool reporting
1296 * @max_num_pmkids: maximum number of PMKIDs supported by device
1297 * @privid: a pointer that drivers can use to identify if an arbitrary
1298 * wiphy is theirs, e.g. in global notifiers
1299 * @bands: information about bands/channels supported by this device
1302 /* assign these fields before you register the wiphy */
1304 /* permanent MAC address(es) */
1305 u8 perm_addr[ETH_ALEN];
1306 u8 addr_mask[ETH_ALEN];
1309 struct mac_address *addresses;
1311 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
1312 u16 interface_modes;
1316 enum cfg80211_signal_type signal_type;
1320 u16 max_scan_ie_len;
1322 int n_cipher_suites;
1323 const u32 *cipher_suites;
1331 char fw_version[ETHTOOL_BUSINFO_LEN];
1336 /* If multiple wiphys are registered and you're handed e.g.
1337 * a regular netdev with assigned ieee80211_ptr, you won't
1338 * know whether it points to a wiphy your driver has registered
1339 * or not. Assign this to something global to your driver to
1340 * help determine whether you own this wiphy or not. */
1343 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
1345 /* Lets us get back the wiphy on the callback */
1346 int (*reg_notifier)(struct wiphy *wiphy,
1347 struct regulatory_request *request);
1349 /* fields below are read-only, assigned by cfg80211 */
1351 const struct ieee80211_regdomain *regd;
1353 /* the item in /sys/class/ieee80211/ points to this,
1354 * you need use set_wiphy_dev() (see below) */
1357 /* dir in debugfs: ieee80211/<wiphyname> */
1358 struct dentry *debugfsdir;
1360 #ifdef CONFIG_NET_NS
1361 /* the network namespace this phy lives in currently */
1365 #ifdef CONFIG_CFG80211_WEXT
1366 const struct iw_handler_def *wext;
1369 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
1372 static inline struct net *wiphy_net(struct wiphy *wiphy)
1374 return read_pnet(&wiphy->_net);
1377 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
1379 write_pnet(&wiphy->_net, net);
1383 * wiphy_priv - return priv from wiphy
1385 * @wiphy: the wiphy whose priv pointer to return
1387 static inline void *wiphy_priv(struct wiphy *wiphy)
1390 return &wiphy->priv;
1394 * priv_to_wiphy - return the wiphy containing the priv
1396 * @priv: a pointer previously returned by wiphy_priv
1398 static inline struct wiphy *priv_to_wiphy(void *priv)
1401 return container_of(priv, struct wiphy, priv);
1405 * set_wiphy_dev - set device pointer for wiphy
1407 * @wiphy: The wiphy whose device to bind
1408 * @dev: The device to parent it to
1410 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
1412 wiphy->dev.parent = dev;
1416 * wiphy_dev - get wiphy dev pointer
1418 * @wiphy: The wiphy whose device struct to look up
1420 static inline struct device *wiphy_dev(struct wiphy *wiphy)
1422 return wiphy->dev.parent;
1426 * wiphy_name - get wiphy name
1428 * @wiphy: The wiphy whose name to return
1430 static inline const char *wiphy_name(struct wiphy *wiphy)
1432 return dev_name(&wiphy->dev);
1436 * wiphy_new - create a new wiphy for use with cfg80211
1438 * @ops: The configuration operations for this device
1439 * @sizeof_priv: The size of the private area to allocate
1441 * Create a new wiphy and associate the given operations with it.
1442 * @sizeof_priv bytes are allocated for private use.
1444 * The returned pointer must be assigned to each netdev's
1445 * ieee80211_ptr for proper operation.
1447 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
1450 * wiphy_register - register a wiphy with cfg80211
1452 * @wiphy: The wiphy to register.
1454 * Returns a non-negative wiphy index or a negative error code.
1456 extern int wiphy_register(struct wiphy *wiphy);
1459 * wiphy_unregister - deregister a wiphy from cfg80211
1461 * @wiphy: The wiphy to unregister.
1463 * After this call, no more requests can be made with this priv
1464 * pointer, but the call may sleep to wait for an outstanding
1465 * request that is being handled.
1467 extern void wiphy_unregister(struct wiphy *wiphy);
1470 * wiphy_free - free wiphy
1472 * @wiphy: The wiphy to free
1474 extern void wiphy_free(struct wiphy *wiphy);
1476 /* internal structs */
1477 struct cfg80211_conn;
1478 struct cfg80211_internal_bss;
1479 struct cfg80211_cached_keys;
1481 #define MAX_AUTH_BSSES 4
1484 * struct wireless_dev - wireless per-netdev state
1486 * This structure must be allocated by the driver/stack
1487 * that uses the ieee80211_ptr field in struct net_device
1488 * (this is intentional so it can be allocated along with
1491 * @wiphy: pointer to hardware description
1492 * @iftype: interface type
1493 * @list: (private) Used to collect the interfaces
1494 * @netdev: (private) Used to reference back to the netdev
1495 * @current_bss: (private) Used by the internal configuration code
1496 * @channel: (private) Used by the internal configuration code to track
1497 * user-set AP, monitor and WDS channels for wireless extensions
1498 * @bssid: (private) Used by the internal configuration code
1499 * @ssid: (private) Used by the internal configuration code
1500 * @ssid_len: (private) Used by the internal configuration code
1501 * @wext: (private) Used by the internal wireless extensions compat code
1502 * @use_4addr: indicates 4addr mode is used on this interface, must be
1503 * set by driver (if supported) on add_interface BEFORE registering the
1504 * netdev and may otherwise be used by driver read-only, will be update
1505 * by cfg80211 on change_interface
1506 * @action_registrations: list of registrations for action frames
1507 * @action_registrations_lock: lock for the list
1508 * @mtx: mutex used to lock data in this struct
1509 * @cleanup_work: work struct used for cleanup that can't be done directly
1511 struct wireless_dev {
1512 struct wiphy *wiphy;
1513 enum nl80211_iftype iftype;
1515 /* the remainder of this struct should be private to cfg80211 */
1516 struct list_head list;
1517 struct net_device *netdev;
1519 struct list_head action_registrations;
1520 spinlock_t action_registrations_lock;
1524 struct work_struct cleanup_work;
1528 /* currently used for IBSS and SME - might be rearranged later */
1529 u8 ssid[IEEE80211_MAX_SSID_LEN];
1533 CFG80211_SME_CONNECTING,
1534 CFG80211_SME_CONNECTED,
1536 struct cfg80211_conn *conn;
1537 struct cfg80211_cached_keys *connect_keys;
1539 struct list_head event_list;
1540 spinlock_t event_lock;
1542 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
1543 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
1544 struct cfg80211_internal_bss *current_bss; /* associated / joined */
1545 struct ieee80211_channel *channel;
1550 #ifdef CONFIG_CFG80211_WEXT
1553 struct cfg80211_ibss_params ibss;
1554 struct cfg80211_connect_params connect;
1555 struct cfg80211_cached_keys *keys;
1558 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
1559 u8 ssid[IEEE80211_MAX_SSID_LEN];
1560 s8 default_key, default_mgmt_key;
1561 bool prev_bssid_valid;
1567 * wdev_priv - return wiphy priv from wireless_dev
1569 * @wdev: The wireless device whose wiphy's priv pointer to return
1571 static inline void *wdev_priv(struct wireless_dev *wdev)
1574 return wiphy_priv(wdev->wiphy);
1582 * ieee80211_channel_to_frequency - convert channel number to frequency
1583 * @chan: channel number
1585 extern int ieee80211_channel_to_frequency(int chan);
1588 * ieee80211_frequency_to_channel - convert frequency to channel number
1589 * @freq: center frequency
1591 extern int ieee80211_frequency_to_channel(int freq);
1594 * Name indirection necessary because the ieee80211 code also has
1595 * a function named "ieee80211_get_channel", so if you include
1596 * cfg80211's header file you get cfg80211's version, if you try
1597 * to include both header files you'll (rightfully!) get a symbol
1600 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
1603 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
1604 * @wiphy: the struct wiphy to get the channel for
1605 * @freq: the center frequency of the channel
1607 static inline struct ieee80211_channel *
1608 ieee80211_get_channel(struct wiphy *wiphy, int freq)
1610 return __ieee80211_get_channel(wiphy, freq);
1614 * ieee80211_get_response_rate - get basic rate for a given rate
1616 * @sband: the band to look for rates in
1617 * @basic_rates: bitmap of basic rates
1618 * @bitrate: the bitrate for which to find the basic rate
1620 * This function returns the basic rate corresponding to a given
1621 * bitrate, that is the next lower bitrate contained in the basic
1622 * rate map, which is, for this function, given as a bitmap of
1623 * indices of rates in the band's bitrate table.
1625 struct ieee80211_rate *
1626 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
1627 u32 basic_rates, int bitrate);
1630 * Radiotap parsing functions -- for controlled injection support
1632 * Implemented in net/wireless/radiotap.c
1633 * Documentation in Documentation/networking/radiotap-headers.txt
1636 struct radiotap_align_size {
1637 uint8_t align:4, size:4;
1640 struct ieee80211_radiotap_namespace {
1641 const struct radiotap_align_size *align_size;
1647 struct ieee80211_radiotap_vendor_namespaces {
1648 const struct ieee80211_radiotap_namespace *ns;
1653 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
1654 * @this_arg_index: index of current arg, valid after each successful call
1655 * to ieee80211_radiotap_iterator_next()
1656 * @this_arg: pointer to current radiotap arg; it is valid after each
1657 * call to ieee80211_radiotap_iterator_next() but also after
1658 * ieee80211_radiotap_iterator_init() where it will point to
1659 * the beginning of the actual data portion
1660 * @this_arg_size: length of the current arg, for convenience
1661 * @current_namespace: pointer to the current namespace definition
1662 * (or internally %NULL if the current namespace is unknown)
1663 * @is_radiotap_ns: indicates whether the current namespace is the default
1664 * radiotap namespace or not
1666 * @_rtheader: pointer to the radiotap header we are walking through
1667 * @_max_length: length of radiotap header in cpu byte ordering
1668 * @_arg_index: next argument index
1669 * @_arg: next argument pointer
1670 * @_next_bitmap: internal pointer to next present u32
1671 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
1672 * @_vns: vendor namespace definitions
1673 * @_next_ns_data: beginning of the next namespace's data
1674 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
1677 * Describes the radiotap parser state. Fields prefixed with an underscore
1678 * must not be used by users of the parser, only by the parser internally.
1681 struct ieee80211_radiotap_iterator {
1682 struct ieee80211_radiotap_header *_rtheader;
1683 const struct ieee80211_radiotap_vendor_namespaces *_vns;
1684 const struct ieee80211_radiotap_namespace *current_namespace;
1686 unsigned char *_arg, *_next_ns_data;
1687 __le32 *_next_bitmap;
1689 unsigned char *this_arg;
1697 uint32_t _bitmap_shifter;
1701 extern int ieee80211_radiotap_iterator_init(
1702 struct ieee80211_radiotap_iterator *iterator,
1703 struct ieee80211_radiotap_header *radiotap_header,
1704 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
1706 extern int ieee80211_radiotap_iterator_next(
1707 struct ieee80211_radiotap_iterator *iterator);
1710 extern const unsigned char rfc1042_header[6];
1711 extern const unsigned char bridge_tunnel_header[6];
1714 * ieee80211_get_hdrlen_from_skb - get header length from data
1716 * Given an skb with a raw 802.11 header at the data pointer this function
1717 * returns the 802.11 header length in bytes (not including encryption
1718 * headers). If the data in the sk_buff is too short to contain a valid 802.11
1719 * header the function returns 0.
1723 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
1726 * ieee80211_hdrlen - get header length in bytes from frame control
1727 * @fc: frame control field in little-endian format
1729 unsigned int ieee80211_hdrlen(__le16 fc);
1732 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
1733 * @skb: the 802.11 data frame
1734 * @addr: the device MAC address
1735 * @iftype: the virtual interface type
1737 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
1738 enum nl80211_iftype iftype);
1741 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
1742 * @skb: the 802.3 frame
1743 * @addr: the device MAC address
1744 * @iftype: the virtual interface type
1745 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
1746 * @qos: build 802.11 QoS data frame
1748 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
1749 enum nl80211_iftype iftype, u8 *bssid, bool qos);
1752 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
1754 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
1755 * 802.3 frames. The @list will be empty if the decode fails. The
1756 * @skb is consumed after the function returns.
1758 * @skb: The input IEEE 802.11n A-MSDU frame.
1759 * @list: The output list of 802.3 frames. It must be allocated and
1760 * initialized by by the caller.
1761 * @addr: The device MAC address.
1762 * @iftype: The device interface type.
1763 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
1765 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
1766 const u8 *addr, enum nl80211_iftype iftype,
1767 const unsigned int extra_headroom);
1770 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
1771 * @skb: the data frame
1773 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
1776 * cfg80211_find_ie - find information element in data
1779 * @ies: data consisting of IEs
1780 * @len: length of data
1782 * This function will return %NULL if the element ID could
1783 * not be found or if the element is invalid (claims to be
1784 * longer than the given data), or a pointer to the first byte
1785 * of the requested element, that is the byte containing the
1786 * element ID. There are no checks on the element length
1787 * other than having to fit into the given data.
1789 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);
1792 * Regulatory helper functions for wiphys
1796 * regulatory_hint - driver hint to the wireless core a regulatory domain
1797 * @wiphy: the wireless device giving the hint (used only for reporting
1799 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
1800 * should be in. If @rd is set this should be NULL. Note that if you
1801 * set this to NULL you should still set rd->alpha2 to some accepted
1804 * Wireless drivers can use this function to hint to the wireless core
1805 * what it believes should be the current regulatory domain by
1806 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
1807 * domain should be in or by providing a completely build regulatory domain.
1808 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
1809 * for a regulatory domain structure for the respective country.
1811 * The wiphy must have been registered to cfg80211 prior to this call.
1812 * For cfg80211 drivers this means you must first use wiphy_register(),
1813 * for mac80211 drivers you must first use ieee80211_register_hw().
1815 * Drivers should check the return value, its possible you can get
1818 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
1821 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
1822 * @wiphy: the wireless device we want to process the regulatory domain on
1823 * @regd: the custom regulatory domain to use for this wiphy
1825 * Drivers can sometimes have custom regulatory domains which do not apply
1826 * to a specific country. Drivers can use this to apply such custom regulatory
1827 * domains. This routine must be called prior to wiphy registration. The
1828 * custom regulatory domain will be trusted completely and as such previous
1829 * default channel settings will be disregarded. If no rule is found for a
1830 * channel on the regulatory domain the channel will be disabled.
1832 extern void wiphy_apply_custom_regulatory(
1833 struct wiphy *wiphy,
1834 const struct ieee80211_regdomain *regd);
1837 * freq_reg_info - get regulatory information for the given frequency
1838 * @wiphy: the wiphy for which we want to process this rule for
1839 * @center_freq: Frequency in KHz for which we want regulatory information for
1840 * @desired_bw_khz: the desired max bandwidth you want to use per
1841 * channel. Note that this is still 20 MHz if you want to use HT40
1842 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
1843 * If set to 0 we'll assume you want the standard 20 MHz.
1844 * @reg_rule: the regulatory rule which we have for this frequency
1846 * Use this function to get the regulatory rule for a specific frequency on
1847 * a given wireless device. If the device has a specific regulatory domain
1848 * it wants to follow we respect that unless a country IE has been received
1849 * and processed already.
1851 * Returns 0 if it was able to find a valid regulatory rule which does
1852 * apply to the given center_freq otherwise it returns non-zero. It will
1853 * also return -ERANGE if we determine the given center_freq does not even have
1854 * a regulatory rule for a frequency range in the center_freq's band. See
1855 * freq_in_rule_band() for our current definition of a band -- this is purely
1856 * subjective and right now its 802.11 specific.
1858 extern int freq_reg_info(struct wiphy *wiphy,
1861 const struct ieee80211_reg_rule **reg_rule);
1864 * Temporary wext handlers & helper functions
1866 * In the future cfg80211 will simply assign the entire wext handler
1867 * structure to netdevs it manages, but we're not there yet.
1869 int cfg80211_wext_giwname(struct net_device *dev,
1870 struct iw_request_info *info,
1871 char *name, char *extra);
1872 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
1873 u32 *mode, char *extra);
1874 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
1875 u32 *mode, char *extra);
1876 int cfg80211_wext_siwscan(struct net_device *dev,
1877 struct iw_request_info *info,
1878 union iwreq_data *wrqu, char *extra);
1879 int cfg80211_wext_giwscan(struct net_device *dev,
1880 struct iw_request_info *info,
1881 struct iw_point *data, char *extra);
1882 int cfg80211_wext_siwmlme(struct net_device *dev,
1883 struct iw_request_info *info,
1884 struct iw_point *data, char *extra);
1885 int cfg80211_wext_giwrange(struct net_device *dev,
1886 struct iw_request_info *info,
1887 struct iw_point *data, char *extra);
1888 int cfg80211_wext_siwgenie(struct net_device *dev,
1889 struct iw_request_info *info,
1890 struct iw_point *data, char *extra);
1891 int cfg80211_wext_siwauth(struct net_device *dev,
1892 struct iw_request_info *info,
1893 struct iw_param *data, char *extra);
1894 int cfg80211_wext_giwauth(struct net_device *dev,
1895 struct iw_request_info *info,
1896 struct iw_param *data, char *extra);
1898 int cfg80211_wext_siwfreq(struct net_device *dev,
1899 struct iw_request_info *info,
1900 struct iw_freq *freq, char *extra);
1901 int cfg80211_wext_giwfreq(struct net_device *dev,
1902 struct iw_request_info *info,
1903 struct iw_freq *freq, char *extra);
1904 int cfg80211_wext_siwessid(struct net_device *dev,
1905 struct iw_request_info *info,
1906 struct iw_point *data, char *ssid);
1907 int cfg80211_wext_giwessid(struct net_device *dev,
1908 struct iw_request_info *info,
1909 struct iw_point *data, char *ssid);
1910 int cfg80211_wext_siwrate(struct net_device *dev,
1911 struct iw_request_info *info,
1912 struct iw_param *rate, char *extra);
1913 int cfg80211_wext_giwrate(struct net_device *dev,
1914 struct iw_request_info *info,
1915 struct iw_param *rate, char *extra);
1917 int cfg80211_wext_siwrts(struct net_device *dev,
1918 struct iw_request_info *info,
1919 struct iw_param *rts, char *extra);
1920 int cfg80211_wext_giwrts(struct net_device *dev,
1921 struct iw_request_info *info,
1922 struct iw_param *rts, char *extra);
1923 int cfg80211_wext_siwfrag(struct net_device *dev,
1924 struct iw_request_info *info,
1925 struct iw_param *frag, char *extra);
1926 int cfg80211_wext_giwfrag(struct net_device *dev,
1927 struct iw_request_info *info,
1928 struct iw_param *frag, char *extra);
1929 int cfg80211_wext_siwretry(struct net_device *dev,
1930 struct iw_request_info *info,
1931 struct iw_param *retry, char *extra);
1932 int cfg80211_wext_giwretry(struct net_device *dev,
1933 struct iw_request_info *info,
1934 struct iw_param *retry, char *extra);
1935 int cfg80211_wext_siwencodeext(struct net_device *dev,
1936 struct iw_request_info *info,
1937 struct iw_point *erq, char *extra);
1938 int cfg80211_wext_siwencode(struct net_device *dev,
1939 struct iw_request_info *info,
1940 struct iw_point *erq, char *keybuf);
1941 int cfg80211_wext_giwencode(struct net_device *dev,
1942 struct iw_request_info *info,
1943 struct iw_point *erq, char *keybuf);
1944 int cfg80211_wext_siwtxpower(struct net_device *dev,
1945 struct iw_request_info *info,
1946 union iwreq_data *data, char *keybuf);
1947 int cfg80211_wext_giwtxpower(struct net_device *dev,
1948 struct iw_request_info *info,
1949 union iwreq_data *data, char *keybuf);
1950 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
1952 int cfg80211_wext_siwpower(struct net_device *dev,
1953 struct iw_request_info *info,
1954 struct iw_param *wrq, char *extra);
1955 int cfg80211_wext_giwpower(struct net_device *dev,
1956 struct iw_request_info *info,
1957 struct iw_param *wrq, char *extra);
1959 int cfg80211_wext_siwap(struct net_device *dev,
1960 struct iw_request_info *info,
1961 struct sockaddr *ap_addr, char *extra);
1962 int cfg80211_wext_giwap(struct net_device *dev,
1963 struct iw_request_info *info,
1964 struct sockaddr *ap_addr, char *extra);
1967 * callbacks for asynchronous cfg80211 methods, notification
1968 * functions and BSS handling helpers
1972 * cfg80211_scan_done - notify that scan finished
1974 * @request: the corresponding scan request
1975 * @aborted: set to true if the scan was aborted for any reason,
1976 * userspace will be notified of that
1978 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
1981 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
1983 * @wiphy: the wiphy reporting the BSS
1984 * @channel: The channel the frame was received on
1985 * @mgmt: the management frame (probe response or beacon)
1986 * @len: length of the management frame
1987 * @signal: the signal strength, type depends on the wiphy's signal_type
1988 * @gfp: context flags
1990 * This informs cfg80211 that BSS information was found and
1991 * the BSS should be updated/added.
1993 struct cfg80211_bss*
1994 cfg80211_inform_bss_frame(struct wiphy *wiphy,
1995 struct ieee80211_channel *channel,
1996 struct ieee80211_mgmt *mgmt, size_t len,
1997 s32 signal, gfp_t gfp);
2000 * cfg80211_inform_bss - inform cfg80211 of a new BSS
2002 * @wiphy: the wiphy reporting the BSS
2003 * @channel: The channel the frame was received on
2004 * @bssid: the BSSID of the BSS
2005 * @timestamp: the TSF timestamp sent by the peer
2006 * @capability: the capability field sent by the peer
2007 * @beacon_interval: the beacon interval announced by the peer
2008 * @ie: additional IEs sent by the peer
2009 * @ielen: length of the additional IEs
2010 * @signal: the signal strength, type depends on the wiphy's signal_type
2011 * @gfp: context flags
2013 * This informs cfg80211 that BSS information was found and
2014 * the BSS should be updated/added.
2016 struct cfg80211_bss*
2017 cfg80211_inform_bss(struct wiphy *wiphy,
2018 struct ieee80211_channel *channel,
2020 u64 timestamp, u16 capability, u16 beacon_interval,
2021 const u8 *ie, size_t ielen,
2022 s32 signal, gfp_t gfp);
2024 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
2025 struct ieee80211_channel *channel,
2027 const u8 *ssid, size_t ssid_len,
2028 u16 capa_mask, u16 capa_val);
2029 static inline struct cfg80211_bss *
2030 cfg80211_get_ibss(struct wiphy *wiphy,
2031 struct ieee80211_channel *channel,
2032 const u8 *ssid, size_t ssid_len)
2034 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
2035 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
2038 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
2039 struct ieee80211_channel *channel,
2040 const u8 *meshid, size_t meshidlen,
2042 void cfg80211_put_bss(struct cfg80211_bss *bss);
2045 * cfg80211_unlink_bss - unlink BSS from internal data structures
2047 * @bss: the bss to remove
2049 * This function removes the given BSS from the internal data structures
2050 * thereby making it no longer show up in scan results etc. Use this
2051 * function when you detect a BSS is gone. Normally BSSes will also time
2052 * out, so it is not necessary to use this function at all.
2054 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
2057 * cfg80211_send_rx_auth - notification of processed authentication
2058 * @dev: network device
2059 * @buf: authentication frame (header + body)
2060 * @len: length of the frame data
2062 * This function is called whenever an authentication has been processed in
2063 * station mode. The driver is required to call either this function or
2064 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2065 * call. This function may sleep.
2067 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2070 * cfg80211_send_auth_timeout - notification of timed out authentication
2071 * @dev: network device
2072 * @addr: The MAC address of the device with which the authentication timed out
2074 * This function may sleep.
2076 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2079 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
2080 * @dev: network device
2081 * @addr: The MAC address of the device with which the authentication timed out
2083 * When a pending authentication had no action yet, the driver may decide
2084 * to not send a deauth frame, but in that case must calls this function
2085 * to tell cfg80211 about this decision. It is only valid to call this
2086 * function within the deauth() callback.
2088 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);
2091 * cfg80211_send_rx_assoc - notification of processed association
2092 * @dev: network device
2093 * @buf: (re)association response frame (header + body)
2094 * @len: length of the frame data
2096 * This function is called whenever a (re)association response has been
2097 * processed in station mode. The driver is required to call either this
2098 * function or cfg80211_send_assoc_timeout() to indicate the result of
2099 * cfg80211_ops::assoc() call. This function may sleep.
2101 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
2104 * cfg80211_send_assoc_timeout - notification of timed out association
2105 * @dev: network device
2106 * @addr: The MAC address of the device with which the association timed out
2108 * This function may sleep.
2110 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2113 * cfg80211_send_deauth - notification of processed deauthentication
2114 * @dev: network device
2115 * @buf: deauthentication frame (header + body)
2116 * @len: length of the frame data
2118 * This function is called whenever deauthentication has been processed in
2119 * station mode. This includes both received deauthentication frames and
2120 * locally generated ones. This function may sleep.
2122 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2125 * __cfg80211_send_deauth - notification of processed deauthentication
2126 * @dev: network device
2127 * @buf: deauthentication frame (header + body)
2128 * @len: length of the frame data
2130 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
2132 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2135 * cfg80211_send_disassoc - notification of processed disassociation
2136 * @dev: network device
2137 * @buf: disassociation response frame (header + body)
2138 * @len: length of the frame data
2140 * This function is called whenever disassociation has been processed in
2141 * station mode. This includes both received disassociation frames and locally
2142 * generated ones. This function may sleep.
2144 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
2147 * __cfg80211_send_disassoc - notification of processed disassociation
2148 * @dev: network device
2149 * @buf: disassociation response frame (header + body)
2150 * @len: length of the frame data
2152 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
2154 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
2158 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
2159 * @dev: network device
2160 * @addr: The source MAC address of the frame
2161 * @key_type: The key type that the received frame used
2162 * @key_id: Key identifier (0..3)
2163 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2164 * @gfp: allocation flags
2166 * This function is called whenever the local MAC detects a MIC failure in a
2167 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
2170 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
2171 enum nl80211_key_type key_type, int key_id,
2172 const u8 *tsc, gfp_t gfp);
2175 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
2177 * @dev: network device
2178 * @bssid: the BSSID of the IBSS joined
2179 * @gfp: allocation flags
2181 * This function notifies cfg80211 that the device joined an IBSS or
2182 * switched to a different BSSID. Before this function can be called,
2183 * either a beacon has to have been received from the IBSS, or one of
2184 * the cfg80211_inform_bss{,_frame} functions must have been called
2185 * with the locally generated beacon -- this guarantees that there is
2186 * always a scan result for this IBSS. cfg80211 will handle the rest.
2188 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
2191 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
2193 * @blocked: block status
2195 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
2198 * wiphy_rfkill_start_polling - start polling rfkill
2201 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
2204 * wiphy_rfkill_stop_polling - stop polling rfkill
2207 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
2209 #ifdef CONFIG_NL80211_TESTMODE
2211 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
2213 * @approxlen: an upper bound of the length of the data that will
2214 * be put into the skb
2216 * This function allocates and pre-fills an skb for a reply to
2217 * the testmode command. Since it is intended for a reply, calling
2218 * it outside of the @testmode_cmd operation is invalid.
2220 * The returned skb (or %NULL if any errors happen) is pre-filled
2221 * with the wiphy index and set up in a way that any data that is
2222 * put into the skb (with skb_put(), nla_put() or similar) will end
2223 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
2224 * needs to be done with the skb is adding data for the corresponding
2225 * userspace tool which can then read that data out of the testdata
2226 * attribute. You must not modify the skb in any other way.
2228 * When done, call cfg80211_testmode_reply() with the skb and return
2229 * its error code as the result of the @testmode_cmd operation.
2231 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
2235 * cfg80211_testmode_reply - send the reply skb
2236 * @skb: The skb, must have been allocated with
2237 * cfg80211_testmode_alloc_reply_skb()
2239 * Returns an error code or 0 on success, since calling this
2240 * function will usually be the last thing before returning
2241 * from the @testmode_cmd you should return the error code.
2242 * Note that this function consumes the skb regardless of the
2245 int cfg80211_testmode_reply(struct sk_buff *skb);
2248 * cfg80211_testmode_alloc_event_skb - allocate testmode event
2250 * @approxlen: an upper bound of the length of the data that will
2251 * be put into the skb
2252 * @gfp: allocation flags
2254 * This function allocates and pre-fills an skb for an event on the
2255 * testmode multicast group.
2257 * The returned skb (or %NULL if any errors happen) is set up in the
2258 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
2259 * for an event. As there, you should simply add data to it that will
2260 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
2261 * not modify the skb in any other way.
2263 * When done filling the skb, call cfg80211_testmode_event() with the
2264 * skb to send the event.
2266 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
2267 int approxlen, gfp_t gfp);
2270 * cfg80211_testmode_event - send the event
2271 * @skb: The skb, must have been allocated with
2272 * cfg80211_testmode_alloc_event_skb()
2273 * @gfp: allocation flags
2275 * This function sends the given @skb, which must have been allocated
2276 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
2279 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
2281 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
2283 #define CFG80211_TESTMODE_CMD(cmd)
2287 * cfg80211_connect_result - notify cfg80211 of connection result
2289 * @dev: network device
2290 * @bssid: the BSSID of the AP
2291 * @req_ie: association request IEs (maybe be %NULL)
2292 * @req_ie_len: association request IEs length
2293 * @resp_ie: association response IEs (may be %NULL)
2294 * @resp_ie_len: assoc response IEs length
2295 * @status: status code, 0 for successful connection, use
2296 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
2297 * the real status code for failures.
2298 * @gfp: allocation flags
2300 * It should be called by the underlying driver whenever connect() has
2303 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
2304 const u8 *req_ie, size_t req_ie_len,
2305 const u8 *resp_ie, size_t resp_ie_len,
2306 u16 status, gfp_t gfp);
2309 * cfg80211_roamed - notify cfg80211 of roaming
2311 * @dev: network device
2312 * @bssid: the BSSID of the new AP
2313 * @req_ie: association request IEs (maybe be %NULL)
2314 * @req_ie_len: association request IEs length
2315 * @resp_ie: association response IEs (may be %NULL)
2316 * @resp_ie_len: assoc response IEs length
2317 * @gfp: allocation flags
2319 * It should be called by the underlying driver whenever it roamed
2320 * from one AP to another while connected.
2322 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
2323 const u8 *req_ie, size_t req_ie_len,
2324 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
2327 * cfg80211_disconnected - notify cfg80211 that connection was dropped
2329 * @dev: network device
2330 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
2331 * @ie_len: length of IEs
2332 * @reason: reason code for the disconnection, set it to 0 if unknown
2333 * @gfp: allocation flags
2335 * After it calls this function, the driver should enter an idle state
2336 * and not try to connect to any AP any more.
2338 void cfg80211_disconnected(struct net_device *dev, u16 reason,
2339 u8 *ie, size_t ie_len, gfp_t gfp);
2342 * cfg80211_ready_on_channel - notification of remain_on_channel start
2343 * @dev: network device
2344 * @cookie: the request cookie
2345 * @chan: The current channel (from remain_on_channel request)
2346 * @channel_type: Channel type
2347 * @duration: Duration in milliseconds that the driver intents to remain on the
2349 * @gfp: allocation flags
2351 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
2352 struct ieee80211_channel *chan,
2353 enum nl80211_channel_type channel_type,
2354 unsigned int duration, gfp_t gfp);
2357 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
2358 * @dev: network device
2359 * @cookie: the request cookie
2360 * @chan: The current channel (from remain_on_channel request)
2361 * @channel_type: Channel type
2362 * @gfp: allocation flags
2364 void cfg80211_remain_on_channel_expired(struct net_device *dev,
2366 struct ieee80211_channel *chan,
2367 enum nl80211_channel_type channel_type,
2372 * cfg80211_new_sta - notify userspace about station
2375 * @mac_addr: the station's address
2376 * @sinfo: the station information
2377 * @gfp: allocation flags
2379 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
2380 struct station_info *sinfo, gfp_t gfp);
2383 * cfg80211_rx_action - notification of received, unprocessed Action frame
2384 * @dev: network device
2385 * @freq: Frequency on which the frame was received in MHz
2386 * @buf: Action frame (header + body)
2387 * @len: length of the frame data
2388 * @gfp: context flags
2389 * Returns %true if a user space application is responsible for rejecting the
2390 * unrecognized Action frame; %false if no such application is registered
2391 * (i.e., the driver is responsible for rejecting the unrecognized Action
2394 * This function is called whenever an Action frame is received for a station
2395 * mode interface, but is not processed in kernel.
2397 bool cfg80211_rx_action(struct net_device *dev, int freq, const u8 *buf,
2398 size_t len, gfp_t gfp);
2401 * cfg80211_action_tx_status - notification of TX status for Action frame
2402 * @dev: network device
2403 * @cookie: Cookie returned by cfg80211_ops::action()
2404 * @buf: Action frame (header + body)
2405 * @len: length of the frame data
2406 * @ack: Whether frame was acknowledged
2407 * @gfp: context flags
2409 * This function is called whenever an Action frame was requested to be
2410 * transmitted with cfg80211_ops::action() to report the TX status of the
2411 * transmission attempt.
2413 void cfg80211_action_tx_status(struct net_device *dev, u64 cookie,
2414 const u8 *buf, size_t len, bool ack, gfp_t gfp);
2418 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
2419 * @dev: network device
2420 * @rssi_event: the triggered RSSI event
2421 * @gfp: context flags
2423 * This function is called when a configured connection quality monitoring
2424 * rssi threshold reached event occurs.
2426 void cfg80211_cqm_rssi_notify(struct net_device *dev,
2427 enum nl80211_cqm_rssi_threshold_event rssi_event,
2430 #endif /* __NET_CFG80211_H */