1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
4 * 802.11 device and configuration interface
6 * Copyright 2006-2009 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)
50 * enum ieee80211_channel_flags - channel flags
52 * Channel flags set by the regulatory control code.
54 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
55 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
57 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
58 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
59 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
61 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
64 enum ieee80211_channel_flags {
65 IEEE80211_CHAN_DISABLED = 1<<0,
66 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
67 IEEE80211_CHAN_NO_IBSS = 1<<2,
68 IEEE80211_CHAN_RADAR = 1<<3,
69 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
70 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
73 #define IEEE80211_CHAN_NO_HT40 \
74 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
77 * struct ieee80211_channel - channel definition
79 * This structure describes a single channel for use
82 * @center_freq: center frequency in MHz
83 * @hw_value: hardware-specific value for the channel
84 * @flags: channel flags from &enum ieee80211_channel_flags.
85 * @orig_flags: channel flags at registration time, used by regulatory
86 * code to support devices with additional restrictions
87 * @band: band this channel belongs to.
88 * @max_antenna_gain: maximum antenna gain in dBi
89 * @max_power: maximum transmission power (in dBm)
90 * @beacon_found: helper to regulatory code to indicate when a beacon
91 * has been found on this channel. Use regulatory_hint_found_beacon()
92 * to enable this, this is is useful only on 5 GHz band.
93 * @orig_mag: internal use
94 * @orig_mpwr: internal use
96 struct ieee80211_channel {
97 enum ieee80211_band band;
101 int max_antenna_gain;
105 int orig_mag, orig_mpwr;
109 * enum ieee80211_rate_flags - rate flags
111 * Hardware/specification flags for rates. These are structured
112 * in a way that allows using the same bitrate structure for
113 * different bands/PHY modes.
115 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
116 * preamble on this bitrate; only relevant in 2.4GHz band and
118 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
119 * when used with 802.11a (on the 5 GHz band); filled by the
120 * core code when registering the wiphy.
121 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
122 * when used with 802.11b (on the 2.4 GHz band); filled by the
123 * core code when registering the wiphy.
124 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
125 * when used with 802.11g (on the 2.4 GHz band); filled by the
126 * core code when registering the wiphy.
127 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
129 enum ieee80211_rate_flags {
130 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
131 IEEE80211_RATE_MANDATORY_A = 1<<1,
132 IEEE80211_RATE_MANDATORY_B = 1<<2,
133 IEEE80211_RATE_MANDATORY_G = 1<<3,
134 IEEE80211_RATE_ERP_G = 1<<4,
138 * struct ieee80211_rate - bitrate definition
140 * This structure describes a bitrate that an 802.11 PHY can
141 * operate with. The two values @hw_value and @hw_value_short
142 * are only for driver use when pointers to this structure are
145 * @flags: rate-specific flags
146 * @bitrate: bitrate in units of 100 Kbps
147 * @hw_value: driver/hardware value for this rate
148 * @hw_value_short: driver/hardware value for this rate when
149 * short preamble is used
151 struct ieee80211_rate {
154 u16 hw_value, hw_value_short;
158 * struct ieee80211_sta_ht_cap - STA's HT capabilities
160 * This structure describes most essential parameters needed
161 * to describe 802.11n HT capabilities for an STA.
163 * @ht_supported: is HT supported by the STA
164 * @cap: HT capabilities map as described in 802.11n spec
165 * @ampdu_factor: Maximum A-MPDU length factor
166 * @ampdu_density: Minimum A-MPDU spacing
167 * @mcs: Supported MCS rates
169 struct ieee80211_sta_ht_cap {
170 u16 cap; /* use IEEE80211_HT_CAP_ */
174 struct ieee80211_mcs_info mcs;
178 * struct ieee80211_supported_band - frequency band definition
180 * This structure describes a frequency band a wiphy
181 * is able to operate in.
183 * @channels: Array of channels the hardware can operate in
185 * @band: the band this structure represents
186 * @n_channels: Number of channels in @channels
187 * @bitrates: Array of bitrates the hardware can operate with
188 * in this band. Must be sorted to give a valid "supported
189 * rates" IE, i.e. CCK rates first, then OFDM.
190 * @n_bitrates: Number of bitrates in @bitrates
192 struct ieee80211_supported_band {
193 struct ieee80211_channel *channels;
194 struct ieee80211_rate *bitrates;
195 enum ieee80211_band band;
198 struct ieee80211_sta_ht_cap ht_cap;
202 * Wireless hardware/device configuration structures and methods
206 * struct vif_params - describes virtual interface parameters
207 * @mesh_id: mesh ID to use
208 * @mesh_id_len: length of the mesh ID
209 * @use_4addr: use 4-address frames
218 * struct key_params - key information
220 * Information about a key
223 * @key_len: length of key material
224 * @cipher: cipher suite selector
225 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
226 * with the get_key() callback, must be in little endian,
227 * length given by @seq_len.
238 * enum survey_info_flags - survey information flags
240 * Used by the driver to indicate which info in &struct survey_info
241 * it has filled in during the get_survey().
243 enum survey_info_flags {
244 SURVEY_INFO_NOISE_DBM = 1<<0,
248 * struct survey_info - channel survey response
250 * Used by dump_survey() to report back per-channel survey information.
252 * @channel: the channel this survey record reports, mandatory
253 * @filled: bitflag of flags from &enum survey_info_flags
254 * @noise: channel noise in dBm. This and all following fields are
257 * This structure can later be expanded with things like
258 * channel duty cycle etc.
261 struct ieee80211_channel *channel;
267 * struct beacon_parameters - beacon parameters
269 * Used to configure the beacon for an interface.
271 * @head: head portion of beacon (before TIM IE)
272 * or %NULL if not changed
273 * @tail: tail portion of beacon (after TIM IE)
274 * or %NULL if not changed
275 * @interval: beacon interval or zero if not changed
276 * @dtim_period: DTIM period or zero if not changed
277 * @head_len: length of @head
278 * @tail_len: length of @tail
280 struct beacon_parameters {
282 int interval, dtim_period;
283 int head_len, tail_len;
287 * enum plink_action - actions to perform in mesh peers
289 * @PLINK_ACTION_INVALID: action 0 is reserved
290 * @PLINK_ACTION_OPEN: start mesh peer link establishment
291 * @PLINK_ACTION_BLOCL: block traffic from this mesh peer
294 PLINK_ACTION_INVALID,
300 * struct station_parameters - station parameters
302 * Used to change and create a new station.
304 * @vlan: vlan interface station should belong to
305 * @supported_rates: supported rates in IEEE 802.11 format
306 * (or NULL for no change)
307 * @supported_rates_len: number of supported rates
308 * @sta_flags_mask: station flags that changed
309 * (bitmask of BIT(NL80211_STA_FLAG_...))
310 * @sta_flags_set: station flags values
311 * (bitmask of BIT(NL80211_STA_FLAG_...))
312 * @listen_interval: listen interval or -1 for no change
313 * @aid: AID or zero for no change
315 struct station_parameters {
317 struct net_device *vlan;
318 u32 sta_flags_mask, sta_flags_set;
321 u8 supported_rates_len;
323 struct ieee80211_ht_cap *ht_capa;
327 * enum station_info_flags - station information flags
329 * Used by the driver to indicate which info in &struct station_info
330 * it has filled in during get_station() or dump_station().
332 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
333 * @STATION_INFO_RX_BYTES: @rx_bytes filled
334 * @STATION_INFO_TX_BYTES: @tx_bytes filled
335 * @STATION_INFO_LLID: @llid filled
336 * @STATION_INFO_PLID: @plid filled
337 * @STATION_INFO_PLINK_STATE: @plink_state filled
338 * @STATION_INFO_SIGNAL: @signal filled
339 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
340 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
341 * @STATION_INFO_RX_PACKETS: @rx_packets filled
342 * @STATION_INFO_TX_PACKETS: @tx_packets filled
344 enum station_info_flags {
345 STATION_INFO_INACTIVE_TIME = 1<<0,
346 STATION_INFO_RX_BYTES = 1<<1,
347 STATION_INFO_TX_BYTES = 1<<2,
348 STATION_INFO_LLID = 1<<3,
349 STATION_INFO_PLID = 1<<4,
350 STATION_INFO_PLINK_STATE = 1<<5,
351 STATION_INFO_SIGNAL = 1<<6,
352 STATION_INFO_TX_BITRATE = 1<<7,
353 STATION_INFO_RX_PACKETS = 1<<8,
354 STATION_INFO_TX_PACKETS = 1<<9,
358 * enum station_info_rate_flags - bitrate info flags
360 * Used by the driver to indicate the specific rate transmission
361 * type for 802.11n transmissions.
363 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
364 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
365 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
367 enum rate_info_flags {
368 RATE_INFO_FLAGS_MCS = 1<<0,
369 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
370 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
374 * struct rate_info - bitrate information
376 * Information about a receiving or transmitting bitrate
378 * @flags: bitflag of flags from &enum rate_info_flags
379 * @mcs: mcs index if struct describes a 802.11n bitrate
380 * @legacy: bitrate in 100kbit/s for 802.11abg
389 * struct station_info - station information
391 * Station information filled by driver for get_station() and dump_station.
393 * @filled: bitflag of flags from &enum station_info_flags
394 * @inactive_time: time since last station activity (tx/rx) in milliseconds
395 * @rx_bytes: bytes received from this station
396 * @tx_bytes: bytes transmitted to this station
397 * @llid: mesh local link id
398 * @plid: mesh peer link id
399 * @plink_state: mesh peer link state
400 * @signal: signal strength of last received packet in dBm
401 * @txrate: current unicast bitrate to this station
402 * @rx_packets: packets received from this station
403 * @tx_packets: packets transmitted to this station
404 * @generation: generation number for nl80211 dumps.
405 * This number should increase every time the list of stations
406 * changes, i.e. when a station is added or removed, so that
407 * userspace can tell whether it got a consistent snapshot.
409 struct station_info {
418 struct rate_info txrate;
426 * enum monitor_flags - monitor flags
428 * Monitor interface configuration flags. Note that these must be the bits
429 * according to the nl80211 flags.
431 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
432 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
433 * @MONITOR_FLAG_CONTROL: pass control frames
434 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
435 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
438 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
439 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
440 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
441 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
442 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
446 * enum mpath_info_flags - mesh path information flags
448 * Used by the driver to indicate which info in &struct mpath_info it has filled
449 * in during get_station() or dump_station().
451 * MPATH_INFO_FRAME_QLEN: @frame_qlen filled
452 * MPATH_INFO_SN: @sn filled
453 * MPATH_INFO_METRIC: @metric filled
454 * MPATH_INFO_EXPTIME: @exptime filled
455 * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
456 * MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
457 * MPATH_INFO_FLAGS: @flags filled
459 enum mpath_info_flags {
460 MPATH_INFO_FRAME_QLEN = BIT(0),
461 MPATH_INFO_SN = BIT(1),
462 MPATH_INFO_METRIC = BIT(2),
463 MPATH_INFO_EXPTIME = BIT(3),
464 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
465 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
466 MPATH_INFO_FLAGS = BIT(6),
470 * struct mpath_info - mesh path information
472 * Mesh path information filled by driver for get_mpath() and dump_mpath().
474 * @filled: bitfield of flags from &enum mpath_info_flags
475 * @frame_qlen: number of queued frames for this destination
476 * @sn: target sequence number
477 * @metric: metric (cost) of this mesh path
478 * @exptime: expiration time for the mesh path from now, in msecs
479 * @flags: mesh path flags
480 * @discovery_timeout: total mesh path discovery timeout, in msecs
481 * @discovery_retries: mesh path discovery retries
482 * @generation: generation number for nl80211 dumps.
483 * This number should increase every time the list of mesh paths
484 * changes, i.e. when a station is added or removed, so that
485 * userspace can tell whether it got a consistent snapshot.
493 u32 discovery_timeout;
494 u8 discovery_retries;
501 * struct bss_parameters - BSS parameters
503 * Used to change BSS parameters (mainly for AP mode).
505 * @use_cts_prot: Whether to use CTS protection
506 * (0 = no, 1 = yes, -1 = do not change)
507 * @use_short_preamble: Whether the use of short preambles is allowed
508 * (0 = no, 1 = yes, -1 = do not change)
509 * @use_short_slot_time: Whether the use of short slot time is allowed
510 * (0 = no, 1 = yes, -1 = do not change)
511 * @basic_rates: basic rates in IEEE 802.11 format
512 * (or NULL for no change)
513 * @basic_rates_len: number of basic rates
515 struct bss_parameters {
517 int use_short_preamble;
518 int use_short_slot_time;
525 /* Mesh plink management parameters */
526 u16 dot11MeshRetryTimeout;
527 u16 dot11MeshConfirmTimeout;
528 u16 dot11MeshHoldingTimeout;
529 u16 dot11MeshMaxPeerLinks;
530 u8 dot11MeshMaxRetries;
532 bool auto_open_plinks;
533 /* HWMP parameters */
534 u8 dot11MeshHWMPmaxPREQretries;
535 u32 path_refresh_time;
536 u16 min_discovery_timeout;
537 u32 dot11MeshHWMPactivePathTimeout;
538 u16 dot11MeshHWMPpreqMinInterval;
539 u16 dot11MeshHWMPnetDiameterTraversalTime;
540 u8 dot11MeshHWMPRootMode;
544 * struct ieee80211_txq_params - TX queue parameters
545 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
546 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
547 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
549 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
551 * @aifs: Arbitration interframe space [0..255]
553 struct ieee80211_txq_params {
554 enum nl80211_txq_q queue;
561 /* from net/wireless.h */
564 /* from net/ieee80211.h */
565 struct ieee80211_channel;
568 * struct cfg80211_ssid - SSID description
570 * @ssid_len: length of the ssid
572 struct cfg80211_ssid {
573 u8 ssid[IEEE80211_MAX_SSID_LEN];
578 * struct cfg80211_scan_request - scan request description
580 * @ssids: SSIDs to scan for (active scan only)
581 * @n_ssids: number of SSIDs
582 * @channels: channels to scan on.
583 * @n_channels: total number of channels to scan
584 * @ie: optional information element(s) to add into Probe Request or %NULL
585 * @ie_len: length of ie in octets
586 * @wiphy: the wiphy this was for
587 * @dev: the interface
589 struct cfg80211_scan_request {
590 struct cfg80211_ssid *ssids;
598 struct net_device *dev;
602 struct ieee80211_channel *channels[0];
606 * enum cfg80211_signal_type - signal type
608 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
609 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
610 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
612 enum cfg80211_signal_type {
613 CFG80211_SIGNAL_TYPE_NONE,
614 CFG80211_SIGNAL_TYPE_MBM,
615 CFG80211_SIGNAL_TYPE_UNSPEC,
619 * struct cfg80211_bss - BSS description
621 * This structure describes a BSS (which may also be a mesh network)
622 * for use in scan results and similar.
624 * @bssid: BSSID of the BSS
625 * @tsf: timestamp of last received update
626 * @beacon_interval: the beacon interval as from the frame
627 * @capability: the capability field in host byte order
628 * @information_elements: the information elements (Note that there
629 * is no guarantee that these are well-formed!)
630 * @len_information_elements: total length of the information elements
631 * @signal: signal strength value (type depends on the wiphy's signal_type)
632 * @free_priv: function pointer to free private data
633 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
635 struct cfg80211_bss {
636 struct ieee80211_channel *channel;
642 u8 *information_elements;
643 size_t len_information_elements;
647 void (*free_priv)(struct cfg80211_bss *bss);
648 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
652 * ieee80211_bss_get_ie - find IE with given ID
653 * @bss: the bss to search
655 * Returns %NULL if not found.
657 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
661 * struct cfg80211_crypto_settings - Crypto settings
662 * @wpa_versions: indicates which, if any, WPA versions are enabled
663 * (from enum nl80211_wpa_versions)
664 * @cipher_group: group key cipher suite (or 0 if unset)
665 * @n_ciphers_pairwise: number of AP supported unicast ciphers
666 * @ciphers_pairwise: unicast key cipher suites
667 * @n_akm_suites: number of AKM suites
668 * @akm_suites: AKM suites
669 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
670 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
671 * required to assume that the port is unauthorized until authorized by
672 * user space. Otherwise, port is marked authorized by default.
674 struct cfg80211_crypto_settings {
677 int n_ciphers_pairwise;
678 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
680 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
685 * struct cfg80211_auth_request - Authentication request data
687 * This structure provides information needed to complete IEEE 802.11
690 * @bss: The BSS to authenticate with.
691 * @auth_type: Authentication type (algorithm)
692 * @ie: Extra IEs to add to Authentication frame or %NULL
693 * @ie_len: Length of ie buffer in octets
694 * @key_len: length of WEP key for shared key authentication
695 * @key_idx: index of WEP key for shared key authentication
696 * @key: WEP key for shared key authentication
698 struct cfg80211_auth_request {
699 struct cfg80211_bss *bss;
702 enum nl80211_auth_type auth_type;
708 * struct cfg80211_assoc_request - (Re)Association request data
710 * This structure provides information needed to complete IEEE 802.11
712 * @bss: The BSS to associate with.
713 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
714 * @ie_len: Length of ie buffer in octets
715 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
716 * @crypto: crypto settings
717 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
719 struct cfg80211_assoc_request {
720 struct cfg80211_bss *bss;
721 const u8 *ie, *prev_bssid;
723 struct cfg80211_crypto_settings crypto;
728 * struct cfg80211_deauth_request - Deauthentication request data
730 * This structure provides information needed to complete IEEE 802.11
733 * @bss: the BSS to deauthenticate from
734 * @ie: Extra IEs to add to Deauthentication frame or %NULL
735 * @ie_len: Length of ie buffer in octets
736 * @reason_code: The reason code for the deauthentication
738 struct cfg80211_deauth_request {
739 struct cfg80211_bss *bss;
746 * struct cfg80211_disassoc_request - Disassociation request data
748 * This structure provides information needed to complete IEEE 802.11
751 * @bss: the BSS to disassociate from
752 * @ie: Extra IEs to add to Disassociation frame or %NULL
753 * @ie_len: Length of ie buffer in octets
754 * @reason_code: The reason code for the disassociation
756 struct cfg80211_disassoc_request {
757 struct cfg80211_bss *bss;
764 * struct cfg80211_ibss_params - IBSS parameters
766 * This structure defines the IBSS parameters for the join_ibss()
769 * @ssid: The SSID, will always be non-null.
770 * @ssid_len: The length of the SSID, will always be non-zero.
771 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
772 * search for IBSSs with a different BSSID.
773 * @channel: The channel to use if no IBSS can be found to join.
774 * @channel_fixed: The channel should be fixed -- do not search for
775 * IBSSs to join on other channels.
776 * @ie: information element(s) to include in the beacon
777 * @ie_len: length of that
778 * @beacon_interval: beacon interval to use
779 * @privacy: this is a protected network, keys will be configured
782 struct cfg80211_ibss_params {
785 struct ieee80211_channel *channel;
794 * struct cfg80211_connect_params - Connection parameters
796 * This structure provides information needed to complete IEEE 802.11
797 * authentication and association.
799 * @channel: The channel to use or %NULL if not specified (auto-select based
801 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
804 * @ssid_len: Length of ssid in octets
805 * @auth_type: Authentication type (algorithm)
806 * @assoc_ie: IEs for association request
807 * @assoc_ie_len: Length of assoc_ie in octets
808 * @privacy: indicates whether privacy-enabled APs should be used
809 * @crypto: crypto settings
810 * @key_len: length of WEP key for shared key authentication
811 * @key_idx: index of WEP key for shared key authentication
812 * @key: WEP key for shared key authentication
814 struct cfg80211_connect_params {
815 struct ieee80211_channel *channel;
819 enum nl80211_auth_type auth_type;
823 struct cfg80211_crypto_settings crypto;
829 * enum wiphy_params_flags - set_wiphy_params bitfield values
830 * WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
831 * WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
832 * WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
833 * WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
835 enum wiphy_params_flags {
836 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
837 WIPHY_PARAM_RETRY_LONG = 1 << 1,
838 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
839 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
843 * enum tx_power_setting - TX power adjustment
845 * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
846 * @TX_POWER_LIMITED: limit TX power by the dbm parameter
847 * @TX_POWER_FIXED: fix TX power to the dbm parameter
849 enum tx_power_setting {
856 * cfg80211_bitrate_mask - masks for bitrate control
858 struct cfg80211_bitrate_mask {
860 * As discussed in Berlin, this struct really
861 * should look like this:
865 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
866 } control[IEEE80211_NUM_BANDS];
868 * Since we can always fix in-kernel users, let's keep
869 * it simpler for now:
871 u32 fixed; /* fixed bitrate, 0 == not fixed */
872 u32 maxrate; /* in kbps, 0 == no limit */
876 * struct cfg80211_ops - backend description for wireless configuration
878 * This struct is registered by fullmac card drivers and/or wireless stacks
879 * in order to handle configuration requests on their interfaces.
881 * All callbacks except where otherwise noted should return 0
882 * on success or a negative error code.
884 * All operations are currently invoked under rtnl for consistency with the
885 * wireless extensions but this is subject to reevaluation as soon as this
886 * code is used more widely and we have a first user without wext.
888 * @suspend: wiphy device needs to be suspended
889 * @resume: wiphy device needs to be resumed
891 * @add_virtual_intf: create a new virtual interface with the given name,
892 * must set the struct wireless_dev's iftype. Beware: You must create
893 * the new netdev in the wiphy's network namespace!
895 * @del_virtual_intf: remove the virtual interface determined by ifindex.
897 * @change_virtual_intf: change type/configuration of virtual interface,
898 * keep the struct wireless_dev's iftype updated.
900 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
901 * when adding a group key.
903 * @get_key: get information about the key with the given parameters.
904 * @mac_addr will be %NULL when requesting information for a group
905 * key. All pointers given to the @callback function need not be valid
906 * after it returns. This function should return an error if it is
907 * not possible to retrieve the key, -ENOENT if it doesn't exist.
909 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
910 * and @key_index, return -ENOENT if the key doesn't exist.
912 * @set_default_key: set the default key on an interface
914 * @set_default_mgmt_key: set the default management frame key on an interface
916 * @add_beacon: Add a beacon with given parameters, @head, @interval
917 * and @dtim_period will be valid, @tail is optional.
918 * @set_beacon: Change the beacon parameters for an access point mode
919 * interface. This should reject the call when no beacon has been
921 * @del_beacon: Remove beacon configuration and stop sending the beacon.
923 * @add_station: Add a new station.
925 * @del_station: Remove a station; @mac may be NULL to remove all stations.
927 * @change_station: Modify a given station.
929 * @get_mesh_params: Put the current mesh parameters into *params
931 * @set_mesh_params: Set mesh parameters.
932 * The mask is a bitfield which tells us which parameters to
933 * set, and which to leave alone.
935 * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
937 * @change_bss: Modify parameters for a given BSS.
939 * @set_txq_params: Set TX queue parameters
941 * @set_channel: Set channel
943 * @scan: Request to do a scan. If returning zero, the scan request is given
944 * the driver, and will be valid until passed to cfg80211_scan_done().
945 * For scan results, call cfg80211_inform_bss(); you can call this outside
946 * the scan/scan_done bracket too.
948 * @auth: Request to authenticate with the specified peer
949 * @assoc: Request to (re)associate with the specified peer
950 * @deauth: Request to deauthenticate from the specified peer
951 * @disassoc: Request to disassociate from the specified peer
953 * @connect: Connect to the ESS with the specified parameters. When connected,
954 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
955 * If the connection fails for some reason, call cfg80211_connect_result()
956 * with the status from the AP.
957 * @disconnect: Disconnect from the BSS/ESS.
959 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
960 * cfg80211_ibss_joined(), also call that function when changing BSSID due
962 * @leave_ibss: Leave the IBSS.
964 * @set_wiphy_params: Notify that wiphy parameters have changed;
965 * @changed bitfield (see &enum wiphy_params_flags) describes which values
966 * have changed. The actual parameter values are available in
967 * struct wiphy. If returning an error, no value should be changed.
969 * @set_tx_power: set the transmit power according to the parameters
970 * @get_tx_power: store the current TX power into the dbm variable;
971 * return 0 if successful
973 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
974 * functions to adjust rfkill hw state
976 * @dump_survey: get site survey information.
978 * @testmode_cmd: run a test mode command
980 struct cfg80211_ops {
981 int (*suspend)(struct wiphy *wiphy);
982 int (*resume)(struct wiphy *wiphy);
984 int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
985 enum nl80211_iftype type, u32 *flags,
986 struct vif_params *params);
987 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
988 int (*change_virtual_intf)(struct wiphy *wiphy,
989 struct net_device *dev,
990 enum nl80211_iftype type, u32 *flags,
991 struct vif_params *params);
993 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
994 u8 key_index, const u8 *mac_addr,
995 struct key_params *params);
996 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
997 u8 key_index, const u8 *mac_addr, void *cookie,
998 void (*callback)(void *cookie, struct key_params*));
999 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1000 u8 key_index, const u8 *mac_addr);
1001 int (*set_default_key)(struct wiphy *wiphy,
1002 struct net_device *netdev,
1004 int (*set_default_mgmt_key)(struct wiphy *wiphy,
1005 struct net_device *netdev,
1008 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
1009 struct beacon_parameters *info);
1010 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
1011 struct beacon_parameters *info);
1012 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
1015 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
1016 u8 *mac, struct station_parameters *params);
1017 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
1019 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
1020 u8 *mac, struct station_parameters *params);
1021 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
1022 u8 *mac, struct station_info *sinfo);
1023 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
1024 int idx, u8 *mac, struct station_info *sinfo);
1026 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
1027 u8 *dst, u8 *next_hop);
1028 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
1030 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
1031 u8 *dst, u8 *next_hop);
1032 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
1033 u8 *dst, u8 *next_hop,
1034 struct mpath_info *pinfo);
1035 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
1036 int idx, u8 *dst, u8 *next_hop,
1037 struct mpath_info *pinfo);
1038 int (*get_mesh_params)(struct wiphy *wiphy,
1039 struct net_device *dev,
1040 struct mesh_config *conf);
1041 int (*set_mesh_params)(struct wiphy *wiphy,
1042 struct net_device *dev,
1043 const struct mesh_config *nconf, u32 mask);
1044 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
1045 struct bss_parameters *params);
1047 int (*set_txq_params)(struct wiphy *wiphy,
1048 struct ieee80211_txq_params *params);
1050 int (*set_channel)(struct wiphy *wiphy,
1051 struct ieee80211_channel *chan,
1052 enum nl80211_channel_type channel_type);
1054 int (*scan)(struct wiphy *wiphy, struct net_device *dev,
1055 struct cfg80211_scan_request *request);
1057 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1058 struct cfg80211_auth_request *req);
1059 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1060 struct cfg80211_assoc_request *req);
1061 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1062 struct cfg80211_deauth_request *req,
1064 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1065 struct cfg80211_disassoc_request *req,
1068 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1069 struct cfg80211_connect_params *sme);
1070 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1073 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1074 struct cfg80211_ibss_params *params);
1075 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1077 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1079 int (*set_tx_power)(struct wiphy *wiphy,
1080 enum tx_power_setting type, int dbm);
1081 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1083 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1086 void (*rfkill_poll)(struct wiphy *wiphy);
1088 #ifdef CONFIG_NL80211_TESTMODE
1089 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1092 int (*set_bitrate_mask)(struct wiphy *wiphy,
1093 struct net_device *dev,
1095 const struct cfg80211_bitrate_mask *mask);
1097 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
1098 int idx, struct survey_info *info);
1100 /* some temporary stuff to finish wext */
1101 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1102 bool enabled, int timeout);
1106 * wireless hardware and networking interfaces structures
1107 * and registration/helper functions
1111 * enum wiphy_flags - wiphy capability flags
1113 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device
1114 * has its own custom regulatory domain and cannot identify the
1115 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1116 * we will disregard the first regulatory hint (when the
1117 * initiator is %REGDOM_SET_BY_CORE).
1118 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
1119 * ignore regulatory domain settings until it gets its own regulatory
1120 * domain via its regulatory_hint(). After its gets its own regulatory
1121 * domain it will only allow further regulatory domain settings to
1122 * further enhance compliance. For example if channel 13 and 14 are
1123 * disabled by this regulatory domain no user regulatory domain can
1124 * enable these channels at a later time. This can be used for devices
1125 * which do not have calibration information gauranteed for frequencies
1126 * or settings outside of its regulatory domain.
1127 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
1128 * that passive scan flags and beaconing flags may not be lifted by
1129 * cfg80211 due to regulatory beacon hints. For more information on beacon
1130 * hints read the documenation for regulatory_hint_found_beacon()
1131 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
1133 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
1134 * by default -- this flag will be set depending on the kernel's default
1135 * on wiphy_new(), but can be changed by the driver if it has a good
1136 * reason to override the default
1137 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
1138 * on a VLAN interface)
1139 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1142 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
1143 WIPHY_FLAG_STRICT_REGULATORY = BIT(1),
1144 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2),
1145 WIPHY_FLAG_NETNS_OK = BIT(3),
1146 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4),
1147 WIPHY_FLAG_4ADDR_AP = BIT(5),
1148 WIPHY_FLAG_4ADDR_STATION = BIT(6),
1152 * struct wiphy - wireless hardware description
1153 * @idx: the wiphy index assigned to this item
1154 * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
1155 * @reg_notifier: the driver's regulatory notification callback
1156 * @regd: the driver's regulatory domain, if one was requested via
1157 * the regulatory_hint() API. This can be used by the driver
1158 * on the reg_notifier() if it chooses to ignore future
1159 * regulatory domain changes caused by other drivers.
1160 * @signal_type: signal type reported in &struct cfg80211_bss.
1161 * @cipher_suites: supported cipher suites
1162 * @n_cipher_suites: number of supported cipher suites
1163 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1164 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1165 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1166 * -1 = fragmentation disabled, only odd values >= 256 used
1167 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1168 * @net: the network namespace this wiphy currently lives in
1171 /* assign these fields before you register the wiphy */
1173 /* permanent MAC address */
1174 u8 perm_addr[ETH_ALEN];
1176 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
1177 u16 interface_modes;
1181 enum cfg80211_signal_type signal_type;
1185 u16 max_scan_ie_len;
1187 int n_cipher_suites;
1188 const u32 *cipher_suites;
1195 char fw_version[ETHTOOL_BUSINFO_LEN];
1198 /* If multiple wiphys are registered and you're handed e.g.
1199 * a regular netdev with assigned ieee80211_ptr, you won't
1200 * know whether it points to a wiphy your driver has registered
1201 * or not. Assign this to something global to your driver to
1202 * help determine whether you own this wiphy or not. */
1205 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
1207 /* Lets us get back the wiphy on the callback */
1208 int (*reg_notifier)(struct wiphy *wiphy,
1209 struct regulatory_request *request);
1211 /* fields below are read-only, assigned by cfg80211 */
1213 const struct ieee80211_regdomain *regd;
1215 /* the item in /sys/class/ieee80211/ points to this,
1216 * you need use set_wiphy_dev() (see below) */
1219 /* dir in debugfs: ieee80211/<wiphyname> */
1220 struct dentry *debugfsdir;
1222 #ifdef CONFIG_NET_NS
1223 /* the network namespace this phy lives in currently */
1227 #ifdef CONFIG_CFG80211_WEXT
1228 const struct iw_handler_def *wext;
1231 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
1234 #ifdef CONFIG_NET_NS
1235 static inline struct net *wiphy_net(struct wiphy *wiphy)
1240 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
1245 static inline struct net *wiphy_net(struct wiphy *wiphy)
1250 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
1256 * wiphy_priv - return priv from wiphy
1258 * @wiphy: the wiphy whose priv pointer to return
1260 static inline void *wiphy_priv(struct wiphy *wiphy)
1263 return &wiphy->priv;
1267 * priv_to_wiphy - return the wiphy containing the priv
1269 * @priv: a pointer previously returned by wiphy_priv
1271 static inline struct wiphy *priv_to_wiphy(void *priv)
1274 return container_of(priv, struct wiphy, priv);
1278 * set_wiphy_dev - set device pointer for wiphy
1280 * @wiphy: The wiphy whose device to bind
1281 * @dev: The device to parent it to
1283 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
1285 wiphy->dev.parent = dev;
1289 * wiphy_dev - get wiphy dev pointer
1291 * @wiphy: The wiphy whose device struct to look up
1293 static inline struct device *wiphy_dev(struct wiphy *wiphy)
1295 return wiphy->dev.parent;
1299 * wiphy_name - get wiphy name
1301 * @wiphy: The wiphy whose name to return
1303 static inline const char *wiphy_name(struct wiphy *wiphy)
1305 return dev_name(&wiphy->dev);
1309 * wiphy_new - create a new wiphy for use with cfg80211
1311 * @ops: The configuration operations for this device
1312 * @sizeof_priv: The size of the private area to allocate
1314 * Create a new wiphy and associate the given operations with it.
1315 * @sizeof_priv bytes are allocated for private use.
1317 * The returned pointer must be assigned to each netdev's
1318 * ieee80211_ptr for proper operation.
1320 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
1323 * wiphy_register - register a wiphy with cfg80211
1325 * @wiphy: The wiphy to register.
1327 * Returns a non-negative wiphy index or a negative error code.
1329 extern int wiphy_register(struct wiphy *wiphy);
1332 * wiphy_unregister - deregister a wiphy from cfg80211
1334 * @wiphy: The wiphy to unregister.
1336 * After this call, no more requests can be made with this priv
1337 * pointer, but the call may sleep to wait for an outstanding
1338 * request that is being handled.
1340 extern void wiphy_unregister(struct wiphy *wiphy);
1343 * wiphy_free - free wiphy
1345 * @wiphy: The wiphy to free
1347 extern void wiphy_free(struct wiphy *wiphy);
1349 /* internal structs */
1350 struct cfg80211_conn;
1351 struct cfg80211_internal_bss;
1352 struct cfg80211_cached_keys;
1354 #define MAX_AUTH_BSSES 4
1357 * struct wireless_dev - wireless per-netdev state
1359 * This structure must be allocated by the driver/stack
1360 * that uses the ieee80211_ptr field in struct net_device
1361 * (this is intentional so it can be allocated along with
1364 * @wiphy: pointer to hardware description
1365 * @iftype: interface type
1366 * @list: (private) Used to collect the interfaces
1367 * @netdev: (private) Used to reference back to the netdev
1368 * @current_bss: (private) Used by the internal configuration code
1369 * @bssid: (private) Used by the internal configuration code
1370 * @ssid: (private) Used by the internal configuration code
1371 * @ssid_len: (private) Used by the internal configuration code
1372 * @wext: (private) Used by the internal wireless extensions compat code
1373 * @wext_bssid: (private) Used by the internal wireless extensions compat code
1374 * @use_4addr: indicates 4addr mode is used on this interface, must be
1375 * set by driver (if supported) on add_interface BEFORE registering the
1376 * netdev and may otherwise be used by driver read-only, will be update
1377 * by cfg80211 on change_interface
1379 struct wireless_dev {
1380 struct wiphy *wiphy;
1381 enum nl80211_iftype iftype;
1383 /* the remainder of this struct should be private to cfg80211 */
1384 struct list_head list;
1385 struct net_device *netdev;
1389 struct work_struct cleanup_work;
1393 /* currently used for IBSS and SME - might be rearranged later */
1394 u8 ssid[IEEE80211_MAX_SSID_LEN];
1398 CFG80211_SME_CONNECTING,
1399 CFG80211_SME_CONNECTED,
1401 struct cfg80211_conn *conn;
1402 struct cfg80211_cached_keys *connect_keys;
1404 struct list_head event_list;
1405 spinlock_t event_lock;
1407 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
1408 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
1409 struct cfg80211_internal_bss *current_bss; /* associated / joined */
1411 #ifdef CONFIG_CFG80211_WEXT
1414 struct cfg80211_ibss_params ibss;
1415 struct cfg80211_connect_params connect;
1416 struct cfg80211_cached_keys *keys;
1419 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
1420 u8 ssid[IEEE80211_MAX_SSID_LEN];
1421 s8 default_key, default_mgmt_key;
1422 bool ps, prev_bssid_valid;
1429 * wdev_priv - return wiphy priv from wireless_dev
1431 * @wdev: The wireless device whose wiphy's priv pointer to return
1433 static inline void *wdev_priv(struct wireless_dev *wdev)
1436 return wiphy_priv(wdev->wiphy);
1444 * ieee80211_channel_to_frequency - convert channel number to frequency
1446 extern int ieee80211_channel_to_frequency(int chan);
1449 * ieee80211_frequency_to_channel - convert frequency to channel number
1451 extern int ieee80211_frequency_to_channel(int freq);
1454 * Name indirection necessary because the ieee80211 code also has
1455 * a function named "ieee80211_get_channel", so if you include
1456 * cfg80211's header file you get cfg80211's version, if you try
1457 * to include both header files you'll (rightfully!) get a symbol
1460 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
1463 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
1465 static inline struct ieee80211_channel *
1466 ieee80211_get_channel(struct wiphy *wiphy, int freq)
1468 return __ieee80211_get_channel(wiphy, freq);
1472 * ieee80211_get_response_rate - get basic rate for a given rate
1474 * @sband: the band to look for rates in
1475 * @basic_rates: bitmap of basic rates
1476 * @bitrate: the bitrate for which to find the basic rate
1478 * This function returns the basic rate corresponding to a given
1479 * bitrate, that is the next lower bitrate contained in the basic
1480 * rate map, which is, for this function, given as a bitmap of
1481 * indices of rates in the band's bitrate table.
1483 struct ieee80211_rate *
1484 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
1485 u32 basic_rates, int bitrate);
1488 * Radiotap parsing functions -- for controlled injection support
1490 * Implemented in net/wireless/radiotap.c
1491 * Documentation in Documentation/networking/radiotap-headers.txt
1495 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
1496 * @rtheader: pointer to the radiotap header we are walking through
1497 * @max_length: length of radiotap header in cpu byte ordering
1498 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
1499 * @this_arg: pointer to current radiotap arg
1500 * @arg_index: internal next argument index
1501 * @arg: internal next argument pointer
1502 * @next_bitmap: internal pointer to next present u32
1503 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
1506 struct ieee80211_radiotap_iterator {
1507 struct ieee80211_radiotap_header *rtheader;
1514 __le32 *next_bitmap;
1518 extern int ieee80211_radiotap_iterator_init(
1519 struct ieee80211_radiotap_iterator *iterator,
1520 struct ieee80211_radiotap_header *radiotap_header,
1523 extern int ieee80211_radiotap_iterator_next(
1524 struct ieee80211_radiotap_iterator *iterator);
1526 extern const unsigned char rfc1042_header[6];
1527 extern const unsigned char bridge_tunnel_header[6];
1530 * ieee80211_get_hdrlen_from_skb - get header length from data
1532 * Given an skb with a raw 802.11 header at the data pointer this function
1533 * returns the 802.11 header length in bytes (not including encryption
1534 * headers). If the data in the sk_buff is too short to contain a valid 802.11
1535 * header the function returns 0.
1539 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
1542 * ieee80211_hdrlen - get header length in bytes from frame control
1543 * @fc: frame control field in little-endian format
1545 unsigned int ieee80211_hdrlen(__le16 fc);
1548 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
1549 * @skb: the 802.11 data frame
1550 * @addr: the device MAC address
1551 * @iftype: the virtual interface type
1553 int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
1554 enum nl80211_iftype iftype);
1557 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
1558 * @skb: the 802.3 frame
1559 * @addr: the device MAC address
1560 * @iftype: the virtual interface type
1561 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
1562 * @qos: build 802.11 QoS data frame
1564 int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
1565 enum nl80211_iftype iftype, u8 *bssid, bool qos);
1568 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
1569 * @skb: the data frame
1571 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
1574 * Regulatory helper functions for wiphys
1578 * regulatory_hint - driver hint to the wireless core a regulatory domain
1579 * @wiphy: the wireless device giving the hint (used only for reporting
1581 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
1582 * should be in. If @rd is set this should be NULL. Note that if you
1583 * set this to NULL you should still set rd->alpha2 to some accepted
1586 * Wireless drivers can use this function to hint to the wireless core
1587 * what it believes should be the current regulatory domain by
1588 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
1589 * domain should be in or by providing a completely build regulatory domain.
1590 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
1591 * for a regulatory domain structure for the respective country.
1593 * The wiphy must have been registered to cfg80211 prior to this call.
1594 * For cfg80211 drivers this means you must first use wiphy_register(),
1595 * for mac80211 drivers you must first use ieee80211_register_hw().
1597 * Drivers should check the return value, its possible you can get
1600 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
1603 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
1604 * @wiphy: the wireless device we want to process the regulatory domain on
1605 * @regd: the custom regulatory domain to use for this wiphy
1607 * Drivers can sometimes have custom regulatory domains which do not apply
1608 * to a specific country. Drivers can use this to apply such custom regulatory
1609 * domains. This routine must be called prior to wiphy registration. The
1610 * custom regulatory domain will be trusted completely and as such previous
1611 * default channel settings will be disregarded. If no rule is found for a
1612 * channel on the regulatory domain the channel will be disabled.
1614 extern void wiphy_apply_custom_regulatory(
1615 struct wiphy *wiphy,
1616 const struct ieee80211_regdomain *regd);
1619 * freq_reg_info - get regulatory information for the given frequency
1620 * @wiphy: the wiphy for which we want to process this rule for
1621 * @center_freq: Frequency in KHz for which we want regulatory information for
1622 * @desired_bw_khz: the desired max bandwidth you want to use per
1623 * channel. Note that this is still 20 MHz if you want to use HT40
1624 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
1625 * If set to 0 we'll assume you want the standard 20 MHz.
1626 * @reg_rule: the regulatory rule which we have for this frequency
1628 * Use this function to get the regulatory rule for a specific frequency on
1629 * a given wireless device. If the device has a specific regulatory domain
1630 * it wants to follow we respect that unless a country IE has been received
1631 * and processed already.
1633 * Returns 0 if it was able to find a valid regulatory rule which does
1634 * apply to the given center_freq otherwise it returns non-zero. It will
1635 * also return -ERANGE if we determine the given center_freq does not even have
1636 * a regulatory rule for a frequency range in the center_freq's band. See
1637 * freq_in_rule_band() for our current definition of a band -- this is purely
1638 * subjective and right now its 802.11 specific.
1640 extern int freq_reg_info(struct wiphy *wiphy,
1643 const struct ieee80211_reg_rule **reg_rule);
1646 * Temporary wext handlers & helper functions
1648 * In the future cfg80211 will simply assign the entire wext handler
1649 * structure to netdevs it manages, but we're not there yet.
1651 int cfg80211_wext_giwname(struct net_device *dev,
1652 struct iw_request_info *info,
1653 char *name, char *extra);
1654 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
1655 u32 *mode, char *extra);
1656 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
1657 u32 *mode, char *extra);
1658 int cfg80211_wext_siwscan(struct net_device *dev,
1659 struct iw_request_info *info,
1660 union iwreq_data *wrqu, char *extra);
1661 int cfg80211_wext_giwscan(struct net_device *dev,
1662 struct iw_request_info *info,
1663 struct iw_point *data, char *extra);
1664 int cfg80211_wext_siwmlme(struct net_device *dev,
1665 struct iw_request_info *info,
1666 struct iw_point *data, char *extra);
1667 int cfg80211_wext_giwrange(struct net_device *dev,
1668 struct iw_request_info *info,
1669 struct iw_point *data, char *extra);
1670 int cfg80211_wext_siwgenie(struct net_device *dev,
1671 struct iw_request_info *info,
1672 struct iw_point *data, char *extra);
1673 int cfg80211_wext_siwauth(struct net_device *dev,
1674 struct iw_request_info *info,
1675 struct iw_param *data, char *extra);
1676 int cfg80211_wext_giwauth(struct net_device *dev,
1677 struct iw_request_info *info,
1678 struct iw_param *data, char *extra);
1680 int cfg80211_wext_siwfreq(struct net_device *dev,
1681 struct iw_request_info *info,
1682 struct iw_freq *freq, char *extra);
1683 int cfg80211_wext_giwfreq(struct net_device *dev,
1684 struct iw_request_info *info,
1685 struct iw_freq *freq, char *extra);
1686 int cfg80211_wext_siwessid(struct net_device *dev,
1687 struct iw_request_info *info,
1688 struct iw_point *data, char *ssid);
1689 int cfg80211_wext_giwessid(struct net_device *dev,
1690 struct iw_request_info *info,
1691 struct iw_point *data, char *ssid);
1692 int cfg80211_wext_siwrate(struct net_device *dev,
1693 struct iw_request_info *info,
1694 struct iw_param *rate, char *extra);
1695 int cfg80211_wext_giwrate(struct net_device *dev,
1696 struct iw_request_info *info,
1697 struct iw_param *rate, char *extra);
1699 int cfg80211_wext_siwrts(struct net_device *dev,
1700 struct iw_request_info *info,
1701 struct iw_param *rts, char *extra);
1702 int cfg80211_wext_giwrts(struct net_device *dev,
1703 struct iw_request_info *info,
1704 struct iw_param *rts, char *extra);
1705 int cfg80211_wext_siwfrag(struct net_device *dev,
1706 struct iw_request_info *info,
1707 struct iw_param *frag, char *extra);
1708 int cfg80211_wext_giwfrag(struct net_device *dev,
1709 struct iw_request_info *info,
1710 struct iw_param *frag, char *extra);
1711 int cfg80211_wext_siwretry(struct net_device *dev,
1712 struct iw_request_info *info,
1713 struct iw_param *retry, char *extra);
1714 int cfg80211_wext_giwretry(struct net_device *dev,
1715 struct iw_request_info *info,
1716 struct iw_param *retry, char *extra);
1717 int cfg80211_wext_siwencodeext(struct net_device *dev,
1718 struct iw_request_info *info,
1719 struct iw_point *erq, char *extra);
1720 int cfg80211_wext_siwencode(struct net_device *dev,
1721 struct iw_request_info *info,
1722 struct iw_point *erq, char *keybuf);
1723 int cfg80211_wext_giwencode(struct net_device *dev,
1724 struct iw_request_info *info,
1725 struct iw_point *erq, char *keybuf);
1726 int cfg80211_wext_siwtxpower(struct net_device *dev,
1727 struct iw_request_info *info,
1728 union iwreq_data *data, char *keybuf);
1729 int cfg80211_wext_giwtxpower(struct net_device *dev,
1730 struct iw_request_info *info,
1731 union iwreq_data *data, char *keybuf);
1732 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
1734 int cfg80211_wext_siwpower(struct net_device *dev,
1735 struct iw_request_info *info,
1736 struct iw_param *wrq, char *extra);
1737 int cfg80211_wext_giwpower(struct net_device *dev,
1738 struct iw_request_info *info,
1739 struct iw_param *wrq, char *extra);
1741 int cfg80211_wext_siwap(struct net_device *dev,
1742 struct iw_request_info *info,
1743 struct sockaddr *ap_addr, char *extra);
1744 int cfg80211_wext_giwap(struct net_device *dev,
1745 struct iw_request_info *info,
1746 struct sockaddr *ap_addr, char *extra);
1749 * callbacks for asynchronous cfg80211 methods, notification
1750 * functions and BSS handling helpers
1754 * cfg80211_scan_done - notify that scan finished
1756 * @request: the corresponding scan request
1757 * @aborted: set to true if the scan was aborted for any reason,
1758 * userspace will be notified of that
1760 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
1763 * cfg80211_inform_bss - inform cfg80211 of a new BSS
1765 * @wiphy: the wiphy reporting the BSS
1766 * @bss: the found BSS
1767 * @signal: the signal strength, type depends on the wiphy's signal_type
1768 * @gfp: context flags
1770 * This informs cfg80211 that BSS information was found and
1771 * the BSS should be updated/added.
1773 struct cfg80211_bss*
1774 cfg80211_inform_bss_frame(struct wiphy *wiphy,
1775 struct ieee80211_channel *channel,
1776 struct ieee80211_mgmt *mgmt, size_t len,
1777 s32 signal, gfp_t gfp);
1779 struct cfg80211_bss*
1780 cfg80211_inform_bss(struct wiphy *wiphy,
1781 struct ieee80211_channel *channel,
1783 u64 timestamp, u16 capability, u16 beacon_interval,
1784 const u8 *ie, size_t ielen,
1785 s32 signal, gfp_t gfp);
1787 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
1788 struct ieee80211_channel *channel,
1790 const u8 *ssid, size_t ssid_len,
1791 u16 capa_mask, u16 capa_val);
1792 static inline struct cfg80211_bss *
1793 cfg80211_get_ibss(struct wiphy *wiphy,
1794 struct ieee80211_channel *channel,
1795 const u8 *ssid, size_t ssid_len)
1797 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
1798 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1801 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
1802 struct ieee80211_channel *channel,
1803 const u8 *meshid, size_t meshidlen,
1805 void cfg80211_put_bss(struct cfg80211_bss *bss);
1808 * cfg80211_unlink_bss - unlink BSS from internal data structures
1810 * @bss: the bss to remove
1812 * This function removes the given BSS from the internal data structures
1813 * thereby making it no longer show up in scan results etc. Use this
1814 * function when you detect a BSS is gone. Normally BSSes will also time
1815 * out, so it is not necessary to use this function at all.
1817 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
1820 * cfg80211_send_rx_auth - notification of processed authentication
1821 * @dev: network device
1822 * @buf: authentication frame (header + body)
1823 * @len: length of the frame data
1825 * This function is called whenever an authentication has been processed in
1826 * station mode. The driver is required to call either this function or
1827 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
1828 * call. This function may sleep.
1830 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
1833 * cfg80211_send_auth_timeout - notification of timed out authentication
1834 * @dev: network device
1835 * @addr: The MAC address of the device with which the authentication timed out
1837 * This function may sleep.
1839 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
1842 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
1843 * @dev: network device
1844 * @addr: The MAC address of the device with which the authentication timed out
1846 * When a pending authentication had no action yet, the driver may decide
1847 * to not send a deauth frame, but in that case must calls this function
1848 * to tell cfg80211 about this decision. It is only valid to call this
1849 * function within the deauth() callback.
1851 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);
1854 * cfg80211_send_rx_assoc - notification of processed association
1855 * @dev: network device
1856 * @buf: (re)association response frame (header + body)
1857 * @len: length of the frame data
1859 * This function is called whenever a (re)association response has been
1860 * processed in station mode. The driver is required to call either this
1861 * function or cfg80211_send_assoc_timeout() to indicate the result of
1862 * cfg80211_ops::assoc() call. This function may sleep.
1864 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
1867 * cfg80211_send_assoc_timeout - notification of timed out association
1868 * @dev: network device
1869 * @addr: The MAC address of the device with which the association timed out
1871 * This function may sleep.
1873 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
1876 * cfg80211_send_deauth - notification of processed deauthentication
1877 * @dev: network device
1878 * @buf: deauthentication frame (header + body)
1879 * @len: length of the frame data
1881 * This function is called whenever deauthentication has been processed in
1882 * station mode. This includes both received deauthentication frames and
1883 * locally generated ones. This function may sleep.
1885 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
1888 * __cfg80211_send_deauth - notification of processed deauthentication
1889 * @dev: network device
1890 * @buf: deauthentication frame (header + body)
1891 * @len: length of the frame data
1893 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
1895 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
1898 * cfg80211_send_disassoc - notification of processed disassociation
1899 * @dev: network device
1900 * @buf: disassociation response frame (header + body)
1901 * @len: length of the frame data
1903 * This function is called whenever disassociation has been processed in
1904 * station mode. This includes both received disassociation frames and locally
1905 * generated ones. This function may sleep.
1907 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
1910 * __cfg80211_send_disassoc - notification of processed disassociation
1911 * @dev: network device
1912 * @buf: disassociation response frame (header + body)
1913 * @len: length of the frame data
1915 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
1917 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
1921 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
1922 * @dev: network device
1923 * @addr: The source MAC address of the frame
1924 * @key_type: The key type that the received frame used
1925 * @key_id: Key identifier (0..3)
1926 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
1927 * @gfp: allocation flags
1929 * This function is called whenever the local MAC detects a MIC failure in a
1930 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
1933 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
1934 enum nl80211_key_type key_type, int key_id,
1935 const u8 *tsc, gfp_t gfp);
1938 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
1940 * @dev: network device
1941 * @bssid: the BSSID of the IBSS joined
1942 * @gfp: allocation flags
1944 * This function notifies cfg80211 that the device joined an IBSS or
1945 * switched to a different BSSID. Before this function can be called,
1946 * either a beacon has to have been received from the IBSS, or one of
1947 * the cfg80211_inform_bss{,_frame} functions must have been called
1948 * with the locally generated beacon -- this guarantees that there is
1949 * always a scan result for this IBSS. cfg80211 will handle the rest.
1951 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
1954 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
1956 * @blocked: block status
1958 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
1961 * wiphy_rfkill_start_polling - start polling rfkill
1964 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
1967 * wiphy_rfkill_stop_polling - stop polling rfkill
1970 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
1972 #ifdef CONFIG_NL80211_TESTMODE
1974 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
1976 * @approxlen: an upper bound of the length of the data that will
1977 * be put into the skb
1979 * This function allocates and pre-fills an skb for a reply to
1980 * the testmode command. Since it is intended for a reply, calling
1981 * it outside of the @testmode_cmd operation is invalid.
1983 * The returned skb (or %NULL if any errors happen) is pre-filled
1984 * with the wiphy index and set up in a way that any data that is
1985 * put into the skb (with skb_put(), nla_put() or similar) will end
1986 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
1987 * needs to be done with the skb is adding data for the corresponding
1988 * userspace tool which can then read that data out of the testdata
1989 * attribute. You must not modify the skb in any other way.
1991 * When done, call cfg80211_testmode_reply() with the skb and return
1992 * its error code as the result of the @testmode_cmd operation.
1994 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
1998 * cfg80211_testmode_reply - send the reply skb
1999 * @skb: The skb, must have been allocated with
2000 * cfg80211_testmode_alloc_reply_skb()
2002 * Returns an error code or 0 on success, since calling this
2003 * function will usually be the last thing before returning
2004 * from the @testmode_cmd you should return the error code.
2005 * Note that this function consumes the skb regardless of the
2008 int cfg80211_testmode_reply(struct sk_buff *skb);
2011 * cfg80211_testmode_alloc_event_skb - allocate testmode event
2013 * @approxlen: an upper bound of the length of the data that will
2014 * be put into the skb
2015 * @gfp: allocation flags
2017 * This function allocates and pre-fills an skb for an event on the
2018 * testmode multicast group.
2020 * The returned skb (or %NULL if any errors happen) is set up in the
2021 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
2022 * for an event. As there, you should simply add data to it that will
2023 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
2024 * not modify the skb in any other way.
2026 * When done filling the skb, call cfg80211_testmode_event() with the
2027 * skb to send the event.
2029 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
2030 int approxlen, gfp_t gfp);
2033 * cfg80211_testmode_event - send the event
2034 * @skb: The skb, must have been allocated with
2035 * cfg80211_testmode_alloc_event_skb()
2036 * @gfp: allocation flags
2038 * This function sends the given @skb, which must have been allocated
2039 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
2042 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
2044 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
2046 #define CFG80211_TESTMODE_CMD(cmd)
2050 * cfg80211_connect_result - notify cfg80211 of connection result
2052 * @dev: network device
2053 * @bssid: the BSSID of the AP
2054 * @req_ie: association request IEs (maybe be %NULL)
2055 * @req_ie_len: association request IEs length
2056 * @resp_ie: association response IEs (may be %NULL)
2057 * @resp_ie_len: assoc response IEs length
2058 * @status: status code, 0 for successful connection, use
2059 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
2060 * the real status code for failures.
2061 * @gfp: allocation flags
2063 * It should be called by the underlying driver whenever connect() has
2066 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
2067 const u8 *req_ie, size_t req_ie_len,
2068 const u8 *resp_ie, size_t resp_ie_len,
2069 u16 status, gfp_t gfp);
2072 * cfg80211_roamed - notify cfg80211 of roaming
2074 * @dev: network device
2075 * @bssid: the BSSID of the new AP
2076 * @req_ie: association request IEs (maybe be %NULL)
2077 * @req_ie_len: association request IEs length
2078 * @resp_ie: association response IEs (may be %NULL)
2079 * @resp_ie_len: assoc response IEs length
2080 * @gfp: allocation flags
2082 * It should be called by the underlying driver whenever it roamed
2083 * from one AP to another while connected.
2085 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
2086 const u8 *req_ie, size_t req_ie_len,
2087 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
2090 * cfg80211_disconnected - notify cfg80211 that connection was dropped
2092 * @dev: network device
2093 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
2094 * @ie_len: length of IEs
2095 * @reason: reason code for the disconnection, set it to 0 if unknown
2096 * @gfp: allocation flags
2098 * After it calls this function, the driver should enter an idle state
2099 * and not try to connect to any AP any more.
2101 void cfg80211_disconnected(struct net_device *dev, u16 reason,
2102 u8 *ie, size_t ie_len, gfp_t gfp);
2105 #endif /* __NET_CFG80211_H */