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 * @max_bandwidth: maximum allowed bandwidth for this channel, 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 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;
103 int max_antenna_gain;
107 int orig_mag, orig_mpwr;
111 * enum ieee80211_rate_flags - rate flags
113 * Hardware/specification flags for rates. These are structured
114 * in a way that allows using the same bitrate structure for
115 * different bands/PHY modes.
117 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
118 * preamble on this bitrate; only relevant in 2.4GHz band and
120 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
121 * when used with 802.11a (on the 5 GHz band); filled by the
122 * core code when registering the wiphy.
123 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
124 * when used with 802.11b (on the 2.4 GHz band); filled by the
125 * core code when registering the wiphy.
126 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
127 * when used with 802.11g (on the 2.4 GHz band); filled by the
128 * core code when registering the wiphy.
129 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
131 enum ieee80211_rate_flags {
132 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
133 IEEE80211_RATE_MANDATORY_A = 1<<1,
134 IEEE80211_RATE_MANDATORY_B = 1<<2,
135 IEEE80211_RATE_MANDATORY_G = 1<<3,
136 IEEE80211_RATE_ERP_G = 1<<4,
140 * struct ieee80211_rate - bitrate definition
142 * This structure describes a bitrate that an 802.11 PHY can
143 * operate with. The two values @hw_value and @hw_value_short
144 * are only for driver use when pointers to this structure are
147 * @flags: rate-specific flags
148 * @bitrate: bitrate in units of 100 Kbps
149 * @hw_value: driver/hardware value for this rate
150 * @hw_value_short: driver/hardware value for this rate when
151 * short preamble is used
153 struct ieee80211_rate {
156 u16 hw_value, hw_value_short;
160 * struct ieee80211_sta_ht_cap - STA's HT capabilities
162 * This structure describes most essential parameters needed
163 * to describe 802.11n HT capabilities for an STA.
165 * @ht_supported: is HT supported by the STA
166 * @cap: HT capabilities map as described in 802.11n spec
167 * @ampdu_factor: Maximum A-MPDU length factor
168 * @ampdu_density: Minimum A-MPDU spacing
169 * @mcs: Supported MCS rates
171 struct ieee80211_sta_ht_cap {
172 u16 cap; /* use IEEE80211_HT_CAP_ */
176 struct ieee80211_mcs_info mcs;
180 * struct ieee80211_supported_band - frequency band definition
182 * This structure describes a frequency band a wiphy
183 * is able to operate in.
185 * @channels: Array of channels the hardware can operate in
187 * @band: the band this structure represents
188 * @n_channels: Number of channels in @channels
189 * @bitrates: Array of bitrates the hardware can operate with
190 * in this band. Must be sorted to give a valid "supported
191 * rates" IE, i.e. CCK rates first, then OFDM.
192 * @n_bitrates: Number of bitrates in @bitrates
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
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 * struct beacon_parameters - beacon parameters
240 * Used to configure the beacon for an interface.
242 * @head: head portion of beacon (before TIM IE)
243 * or %NULL if not changed
244 * @tail: tail portion of beacon (after TIM IE)
245 * or %NULL if not changed
246 * @interval: beacon interval or zero if not changed
247 * @dtim_period: DTIM period or zero if not changed
248 * @head_len: length of @head
249 * @tail_len: length of @tail
251 struct beacon_parameters {
253 int interval, dtim_period;
254 int head_len, tail_len;
258 * enum plink_action - actions to perform in mesh peers
260 * @PLINK_ACTION_INVALID: action 0 is reserved
261 * @PLINK_ACTION_OPEN: start mesh peer link establishment
262 * @PLINK_ACTION_BLOCL: block traffic from this mesh peer
265 PLINK_ACTION_INVALID,
271 * struct station_parameters - station parameters
273 * Used to change and create a new station.
275 * @vlan: vlan interface station should belong to
276 * @supported_rates: supported rates in IEEE 802.11 format
277 * (or NULL for no change)
278 * @supported_rates_len: number of supported rates
279 * @sta_flags_mask: station flags that changed
280 * (bitmask of BIT(NL80211_STA_FLAG_...))
281 * @sta_flags_set: station flags values
282 * (bitmask of BIT(NL80211_STA_FLAG_...))
283 * @listen_interval: listen interval or -1 for no change
284 * @aid: AID or zero for no change
286 struct station_parameters {
288 struct net_device *vlan;
289 u32 sta_flags_mask, sta_flags_set;
292 u8 supported_rates_len;
294 struct ieee80211_ht_cap *ht_capa;
298 * enum station_info_flags - station information flags
300 * Used by the driver to indicate which info in &struct station_info
301 * it has filled in during get_station() or dump_station().
303 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
304 * @STATION_INFO_RX_BYTES: @rx_bytes filled
305 * @STATION_INFO_TX_BYTES: @tx_bytes filled
306 * @STATION_INFO_LLID: @llid filled
307 * @STATION_INFO_PLID: @plid filled
308 * @STATION_INFO_PLINK_STATE: @plink_state filled
309 * @STATION_INFO_SIGNAL: @signal filled
310 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
311 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
312 * @STATION_INFO_RX_PACKETS: @rx_packets filled
313 * @STATION_INFO_TX_PACKETS: @tx_packets filled
315 enum station_info_flags {
316 STATION_INFO_INACTIVE_TIME = 1<<0,
317 STATION_INFO_RX_BYTES = 1<<1,
318 STATION_INFO_TX_BYTES = 1<<2,
319 STATION_INFO_LLID = 1<<3,
320 STATION_INFO_PLID = 1<<4,
321 STATION_INFO_PLINK_STATE = 1<<5,
322 STATION_INFO_SIGNAL = 1<<6,
323 STATION_INFO_TX_BITRATE = 1<<7,
324 STATION_INFO_RX_PACKETS = 1<<8,
325 STATION_INFO_TX_PACKETS = 1<<9,
329 * enum station_info_rate_flags - bitrate info flags
331 * Used by the driver to indicate the specific rate transmission
332 * type for 802.11n transmissions.
334 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
335 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
336 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
338 enum rate_info_flags {
339 RATE_INFO_FLAGS_MCS = 1<<0,
340 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
341 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
345 * struct rate_info - bitrate information
347 * Information about a receiving or transmitting bitrate
349 * @flags: bitflag of flags from &enum rate_info_flags
350 * @mcs: mcs index if struct describes a 802.11n bitrate
351 * @legacy: bitrate in 100kbit/s for 802.11abg
360 * struct station_info - station information
362 * Station information filled by driver for get_station() and dump_station.
364 * @filled: bitflag of flags from &enum station_info_flags
365 * @inactive_time: time since last station activity (tx/rx) in milliseconds
366 * @rx_bytes: bytes received from this station
367 * @tx_bytes: bytes transmitted to this station
368 * @llid: mesh local link id
369 * @plid: mesh peer link id
370 * @plink_state: mesh peer link state
371 * @signal: signal strength of last received packet in dBm
372 * @txrate: current unicast bitrate to this station
373 * @rx_packets: packets received from this station
374 * @tx_packets: packets transmitted to this station
376 struct station_info {
385 struct rate_info txrate;
391 * enum monitor_flags - monitor flags
393 * Monitor interface configuration flags. Note that these must be the bits
394 * according to the nl80211 flags.
396 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
397 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
398 * @MONITOR_FLAG_CONTROL: pass control frames
399 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
400 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
403 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
404 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
405 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
406 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
407 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
411 * enum mpath_info_flags - mesh path information flags
413 * Used by the driver to indicate which info in &struct mpath_info it has filled
414 * in during get_station() or dump_station().
416 * MPATH_INFO_FRAME_QLEN: @frame_qlen filled
417 * MPATH_INFO_DSN: @dsn filled
418 * MPATH_INFO_METRIC: @metric filled
419 * MPATH_INFO_EXPTIME: @exptime filled
420 * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
421 * MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
422 * MPATH_INFO_FLAGS: @flags filled
424 enum mpath_info_flags {
425 MPATH_INFO_FRAME_QLEN = BIT(0),
426 MPATH_INFO_DSN = BIT(1),
427 MPATH_INFO_METRIC = BIT(2),
428 MPATH_INFO_EXPTIME = BIT(3),
429 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
430 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
431 MPATH_INFO_FLAGS = BIT(6),
435 * struct mpath_info - mesh path information
437 * Mesh path information filled by driver for get_mpath() and dump_mpath().
439 * @filled: bitfield of flags from &enum mpath_info_flags
440 * @frame_qlen: number of queued frames for this destination
441 * @dsn: destination sequence number
442 * @metric: metric (cost) of this mesh path
443 * @exptime: expiration time for the mesh path from now, in msecs
444 * @flags: mesh path flags
445 * @discovery_timeout: total mesh path discovery timeout, in msecs
446 * @discovery_retries: mesh path discovery retries
454 u32 discovery_timeout;
455 u8 discovery_retries;
460 * struct bss_parameters - BSS parameters
462 * Used to change BSS parameters (mainly for AP mode).
464 * @use_cts_prot: Whether to use CTS protection
465 * (0 = no, 1 = yes, -1 = do not change)
466 * @use_short_preamble: Whether the use of short preambles is allowed
467 * (0 = no, 1 = yes, -1 = do not change)
468 * @use_short_slot_time: Whether the use of short slot time is allowed
469 * (0 = no, 1 = yes, -1 = do not change)
470 * @basic_rates: basic rates in IEEE 802.11 format
471 * (or NULL for no change)
472 * @basic_rates_len: number of basic rates
474 struct bss_parameters {
476 int use_short_preamble;
477 int use_short_slot_time;
484 /* Mesh plink management parameters */
485 u16 dot11MeshRetryTimeout;
486 u16 dot11MeshConfirmTimeout;
487 u16 dot11MeshHoldingTimeout;
488 u16 dot11MeshMaxPeerLinks;
489 u8 dot11MeshMaxRetries;
491 bool auto_open_plinks;
492 /* HWMP parameters */
493 u8 dot11MeshHWMPmaxPREQretries;
494 u32 path_refresh_time;
495 u16 min_discovery_timeout;
496 u32 dot11MeshHWMPactivePathTimeout;
497 u16 dot11MeshHWMPpreqMinInterval;
498 u16 dot11MeshHWMPnetDiameterTraversalTime;
502 * struct ieee80211_txq_params - TX queue parameters
503 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
504 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
505 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
507 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
509 * @aifs: Arbitration interframe space [0..255]
511 struct ieee80211_txq_params {
512 enum nl80211_txq_q queue;
519 /* from net/wireless.h */
522 /* from net/ieee80211.h */
523 struct ieee80211_channel;
526 * struct cfg80211_ssid - SSID description
528 * @ssid_len: length of the ssid
530 struct cfg80211_ssid {
531 u8 ssid[IEEE80211_MAX_SSID_LEN];
536 * struct cfg80211_scan_request - scan request description
538 * @ssids: SSIDs to scan for (active scan only)
539 * @n_ssids: number of SSIDs
540 * @channels: channels to scan on.
541 * @n_channels: number of channels for each band
542 * @ie: optional information element(s) to add into Probe Request or %NULL
543 * @ie_len: length of ie in octets
544 * @wiphy: the wiphy this was for
545 * @ifidx: the interface index
547 struct cfg80211_scan_request {
548 struct cfg80211_ssid *ssids;
550 struct ieee80211_channel **channels;
561 * enum cfg80211_signal_type - signal type
563 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
564 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
565 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
567 enum cfg80211_signal_type {
568 CFG80211_SIGNAL_TYPE_NONE,
569 CFG80211_SIGNAL_TYPE_MBM,
570 CFG80211_SIGNAL_TYPE_UNSPEC,
574 * struct cfg80211_bss - BSS description
576 * This structure describes a BSS (which may also be a mesh network)
577 * for use in scan results and similar.
579 * @bssid: BSSID of the BSS
580 * @tsf: timestamp of last received update
581 * @beacon_interval: the beacon interval as from the frame
582 * @capability: the capability field in host byte order
583 * @information_elements: the information elements (Note that there
584 * is no guarantee that these are well-formed!)
585 * @len_information_elements: total length of the information elements
586 * @signal: signal strength value (type depends on the wiphy's signal_type)
587 * @hold: BSS should not expire
588 * @free_priv: function pointer to free private data
589 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
591 struct cfg80211_bss {
592 struct ieee80211_channel *channel;
598 u8 *information_elements;
599 size_t len_information_elements;
603 void (*free_priv)(struct cfg80211_bss *bss);
604 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
608 * struct cfg80211_crypto_settings - Crypto settings
609 * @wpa_versions: indicates which, if any, WPA versions are enabled
610 * (from enum nl80211_wpa_versions)
611 * @cipher_group: group key cipher suite (or 0 if unset)
612 * @n_ciphers_pairwise: number of AP supported unicast ciphers
613 * @ciphers_pairwise: unicast key cipher suites
614 * @n_akm_suites: number of AKM suites
615 * @akm_suites: AKM suites
616 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
617 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
618 * required to assume that the port is unauthorized until authorized by
619 * user space. Otherwise, port is marked authorized by default.
621 struct cfg80211_crypto_settings {
624 int n_ciphers_pairwise;
625 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
627 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
632 * struct cfg80211_auth_request - Authentication request data
634 * This structure provides information needed to complete IEEE 802.11
636 * NOTE: This structure will likely change when more code from mac80211 is
637 * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
638 * Before using this in a driver that does not use mac80211, it would be better
639 * to check the status of that work and better yet, volunteer to work on it.
641 * @chan: The channel to use or %NULL if not specified (auto-select based on
643 * @peer_addr: The address of the peer STA (AP BSSID in infrastructure case);
644 * this field is required to be present; if the driver wants to help with
645 * BSS selection, it should use (yet to be added) MLME event to allow user
646 * space SME to be notified of roaming candidate, so that the SME can then
647 * use the authentication request with the recommended BSSID and whatever
648 * other data may be needed for authentication/association
649 * @ssid: SSID or %NULL if not yet available
650 * @ssid_len: Length of ssid in octets
651 * @auth_type: Authentication type (algorithm)
652 * @ie: Extra IEs to add to Authentication frame or %NULL
653 * @ie_len: Length of ie buffer in octets
655 struct cfg80211_auth_request {
656 struct ieee80211_channel *chan;
660 enum nl80211_auth_type auth_type;
666 * struct cfg80211_assoc_request - (Re)Association request data
668 * This structure provides information needed to complete IEEE 802.11
670 * NOTE: This structure will likely change when more code from mac80211 is
671 * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
672 * Before using this in a driver that does not use mac80211, it would be better
673 * to check the status of that work and better yet, volunteer to work on it.
675 * @chan: The channel to use or %NULL if not specified (auto-select based on
677 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
678 * to be present and the STA must be in State 2 (authenticated) with the
681 * @ssid_len: Length of ssid in octets
682 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
683 * @ie_len: Length of ie buffer in octets
684 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
685 * @crypto: crypto settings
687 struct cfg80211_assoc_request {
688 struct ieee80211_channel *chan;
695 struct cfg80211_crypto_settings crypto;
699 * struct cfg80211_deauth_request - Deauthentication request data
701 * This structure provides information needed to complete IEEE 802.11
704 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
705 * to be present and the STA must be authenticated with the peer STA
706 * @ie: Extra IEs to add to Deauthentication frame or %NULL
707 * @ie_len: Length of ie buffer in octets
709 struct cfg80211_deauth_request {
717 * struct cfg80211_disassoc_request - Disassociation request data
719 * This structure provides information needed to complete IEEE 802.11
722 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
723 * to be present and the STA must be associated with the peer STA
724 * @ie: Extra IEs to add to Disassociation frame or %NULL
725 * @ie_len: Length of ie buffer in octets
727 struct cfg80211_disassoc_request {
735 * struct cfg80211_ibss_params - IBSS parameters
737 * This structure defines the IBSS parameters for the join_ibss()
740 * @ssid: The SSID, will always be non-null.
741 * @ssid_len: The length of the SSID, will always be non-zero.
742 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
743 * search for IBSSs with a different BSSID.
744 * @channel: The channel to use if no IBSS can be found to join.
745 * @channel_fixed: The channel should be fixed -- do not search for
746 * IBSSs to join on other channels.
747 * @ie: information element(s) to include in the beacon
748 * @ie_len: length of that
749 * @beacon_interval: beacon interval to use
751 struct cfg80211_ibss_params {
754 struct ieee80211_channel *channel;
762 * struct cfg80211_connect_params - Connection parameters
764 * This structure provides information needed to complete IEEE 802.11
765 * authentication and association.
767 * @channel: The channel to use or %NULL if not specified (auto-select based
769 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
772 * @ssid_len: Length of ssid in octets
773 * @auth_type: Authentication type (algorithm)
774 * @assoc_ie: IEs for association request
775 * @assoc_ie_len: Length of assoc_ie in octets
776 * @privacy: indicates whether privacy-enabled APs should be used
777 * @crypto: crypto settings
779 struct cfg80211_connect_params {
780 struct ieee80211_channel *channel;
784 enum nl80211_auth_type auth_type;
788 struct cfg80211_crypto_settings crypto;
792 * enum wiphy_params_flags - set_wiphy_params bitfield values
793 * WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
794 * WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
795 * WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
796 * WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
798 enum wiphy_params_flags {
799 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
800 WIPHY_PARAM_RETRY_LONG = 1 << 1,
801 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
802 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
806 * enum tx_power_setting - TX power adjustment
808 * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
809 * @TX_POWER_LIMITED: limit TX power by the dbm parameter
810 * @TX_POWER_FIXED: fix TX power to the dbm parameter
812 enum tx_power_setting {
819 * struct cfg80211_ops - backend description for wireless configuration
821 * This struct is registered by fullmac card drivers and/or wireless stacks
822 * in order to handle configuration requests on their interfaces.
824 * All callbacks except where otherwise noted should return 0
825 * on success or a negative error code.
827 * All operations are currently invoked under rtnl for consistency with the
828 * wireless extensions but this is subject to reevaluation as soon as this
829 * code is used more widely and we have a first user without wext.
831 * @suspend: wiphy device needs to be suspended
832 * @resume: wiphy device needs to be resumed
834 * @add_virtual_intf: create a new virtual interface with the given name,
835 * must set the struct wireless_dev's iftype.
837 * @del_virtual_intf: remove the virtual interface determined by ifindex.
839 * @change_virtual_intf: change type/configuration of virtual interface,
840 * keep the struct wireless_dev's iftype updated.
842 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
843 * when adding a group key.
845 * @get_key: get information about the key with the given parameters.
846 * @mac_addr will be %NULL when requesting information for a group
847 * key. All pointers given to the @callback function need not be valid
848 * after it returns. This function should return an error if it is
849 * not possible to retrieve the key, -ENOENT if it doesn't exist.
851 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
852 * and @key_index, return -ENOENT if the key doesn't exist.
854 * @set_default_key: set the default key on an interface
856 * @set_default_mgmt_key: set the default management frame key on an interface
858 * @add_beacon: Add a beacon with given parameters, @head, @interval
859 * and @dtim_period will be valid, @tail is optional.
860 * @set_beacon: Change the beacon parameters for an access point mode
861 * interface. This should reject the call when no beacon has been
863 * @del_beacon: Remove beacon configuration and stop sending the beacon.
865 * @add_station: Add a new station.
867 * @del_station: Remove a station; @mac may be NULL to remove all stations.
869 * @change_station: Modify a given station.
871 * @get_mesh_params: Put the current mesh parameters into *params
873 * @set_mesh_params: Set mesh parameters.
874 * The mask is a bitfield which tells us which parameters to
875 * set, and which to leave alone.
877 * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
879 * @change_bss: Modify parameters for a given BSS.
881 * @set_txq_params: Set TX queue parameters
883 * @set_channel: Set channel
885 * @scan: Request to do a scan. If returning zero, the scan request is given
886 * the driver, and will be valid until passed to cfg80211_scan_done().
887 * For scan results, call cfg80211_inform_bss(); you can call this outside
888 * the scan/scan_done bracket too.
890 * @auth: Request to authenticate with the specified peer
891 * @assoc: Request to (re)associate with the specified peer
892 * @deauth: Request to deauthenticate from the specified peer
893 * @disassoc: Request to disassociate from the specified peer
895 * @connect: Connect to the ESS with the specified parameters. When connected,
896 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
897 * If the connection fails for some reason, call cfg80211_connect_result()
898 * with the status from the AP.
899 * @disconnect: Disconnect from the BSS/ESS.
901 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
902 * cfg80211_ibss_joined(), also call that function when changing BSSID due
904 * @leave_ibss: Leave the IBSS.
906 * @set_wiphy_params: Notify that wiphy parameters have changed;
907 * @changed bitfield (see &enum wiphy_params_flags) describes which values
908 * have changed. The actual parameter values are available in
909 * struct wiphy. If returning an error, no value should be changed.
911 * @set_tx_power: set the transmit power according to the parameters
912 * @get_tx_power: store the current TX power into the dbm variable;
913 * return 0 if successful
915 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
916 * functions to adjust rfkill hw state
918 * @testmode_cmd: run a test mode command
920 struct cfg80211_ops {
921 int (*suspend)(struct wiphy *wiphy);
922 int (*resume)(struct wiphy *wiphy);
924 int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
925 enum nl80211_iftype type, u32 *flags,
926 struct vif_params *params);
927 int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
928 int (*change_virtual_intf)(struct wiphy *wiphy,
929 struct net_device *dev,
930 enum nl80211_iftype type, u32 *flags,
931 struct vif_params *params);
933 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
934 u8 key_index, const u8 *mac_addr,
935 struct key_params *params);
936 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
937 u8 key_index, const u8 *mac_addr, void *cookie,
938 void (*callback)(void *cookie, struct key_params*));
939 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
940 u8 key_index, const u8 *mac_addr);
941 int (*set_default_key)(struct wiphy *wiphy,
942 struct net_device *netdev,
944 int (*set_default_mgmt_key)(struct wiphy *wiphy,
945 struct net_device *netdev,
948 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
949 struct beacon_parameters *info);
950 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
951 struct beacon_parameters *info);
952 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
955 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
956 u8 *mac, struct station_parameters *params);
957 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
959 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
960 u8 *mac, struct station_parameters *params);
961 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
962 u8 *mac, struct station_info *sinfo);
963 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
964 int idx, u8 *mac, struct station_info *sinfo);
966 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
967 u8 *dst, u8 *next_hop);
968 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
970 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
971 u8 *dst, u8 *next_hop);
972 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
973 u8 *dst, u8 *next_hop,
974 struct mpath_info *pinfo);
975 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
976 int idx, u8 *dst, u8 *next_hop,
977 struct mpath_info *pinfo);
978 int (*get_mesh_params)(struct wiphy *wiphy,
979 struct net_device *dev,
980 struct mesh_config *conf);
981 int (*set_mesh_params)(struct wiphy *wiphy,
982 struct net_device *dev,
983 const struct mesh_config *nconf, u32 mask);
984 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
985 struct bss_parameters *params);
987 int (*set_txq_params)(struct wiphy *wiphy,
988 struct ieee80211_txq_params *params);
990 int (*set_channel)(struct wiphy *wiphy,
991 struct ieee80211_channel *chan,
992 enum nl80211_channel_type channel_type);
994 int (*scan)(struct wiphy *wiphy, struct net_device *dev,
995 struct cfg80211_scan_request *request);
997 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
998 struct cfg80211_auth_request *req);
999 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1000 struct cfg80211_assoc_request *req);
1001 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1002 struct cfg80211_deauth_request *req);
1003 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1004 struct cfg80211_disassoc_request *req);
1006 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1007 struct cfg80211_connect_params *sme);
1008 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1011 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1012 struct cfg80211_ibss_params *params);
1013 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1015 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1017 int (*set_tx_power)(struct wiphy *wiphy,
1018 enum tx_power_setting type, int dbm);
1019 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1021 void (*rfkill_poll)(struct wiphy *wiphy);
1023 #ifdef CONFIG_NL80211_TESTMODE
1024 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1027 /* some temporary stuff to finish wext */
1028 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1029 bool enabled, int timeout);
1033 * wireless hardware and networking interfaces structures
1034 * and registration/helper functions
1038 * struct wiphy - wireless hardware description
1039 * @idx: the wiphy index assigned to this item
1040 * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
1041 * @custom_regulatory: tells us the driver for this device
1042 * has its own custom regulatory domain and cannot identify the
1043 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1044 * we will disregard the first regulatory hint (when the
1045 * initiator is %REGDOM_SET_BY_CORE).
1046 * @strict_regulatory: tells us the driver for this device will ignore
1047 * regulatory domain settings until it gets its own regulatory domain
1048 * via its regulatory_hint(). After its gets its own regulatory domain
1049 * it will only allow further regulatory domain settings to further
1050 * enhance compliance. For example if channel 13 and 14 are disabled
1051 * by this regulatory domain no user regulatory domain can enable these
1052 * channels at a later time. This can be used for devices which do not
1053 * have calibration information gauranteed for frequencies or settings
1054 * outside of its regulatory domain.
1055 * @reg_notifier: the driver's regulatory notification callback
1056 * @regd: the driver's regulatory domain, if one was requested via
1057 * the regulatory_hint() API. This can be used by the driver
1058 * on the reg_notifier() if it chooses to ignore future
1059 * regulatory domain changes caused by other drivers.
1060 * @signal_type: signal type reported in &struct cfg80211_bss.
1061 * @cipher_suites: supported cipher suites
1062 * @n_cipher_suites: number of supported cipher suites
1063 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1064 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1065 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1066 * -1 = fragmentation disabled, only odd values >= 256 used
1067 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1070 /* assign these fields before you register the wiphy */
1072 /* permanent MAC address */
1073 u8 perm_addr[ETH_ALEN];
1075 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
1076 u16 interface_modes;
1078 bool custom_regulatory;
1079 bool strict_regulatory;
1081 enum cfg80211_signal_type signal_type;
1085 u16 max_scan_ie_len;
1087 int n_cipher_suites;
1088 const u32 *cipher_suites;
1095 /* If multiple wiphys are registered and you're handed e.g.
1096 * a regular netdev with assigned ieee80211_ptr, you won't
1097 * know whether it points to a wiphy your driver has registered
1098 * or not. Assign this to something global to your driver to
1099 * help determine whether you own this wiphy or not. */
1102 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
1104 /* Lets us get back the wiphy on the callback */
1105 int (*reg_notifier)(struct wiphy *wiphy,
1106 struct regulatory_request *request);
1108 /* fields below are read-only, assigned by cfg80211 */
1110 const struct ieee80211_regdomain *regd;
1112 /* the item in /sys/class/ieee80211/ points to this,
1113 * you need use set_wiphy_dev() (see below) */
1116 /* dir in debugfs: ieee80211/<wiphyname> */
1117 struct dentry *debugfsdir;
1119 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
1123 * wiphy_priv - return priv from wiphy
1125 * @wiphy: the wiphy whose priv pointer to return
1127 static inline void *wiphy_priv(struct wiphy *wiphy)
1130 return &wiphy->priv;
1134 * priv_to_wiphy - return the wiphy containing the priv
1136 * @priv: a pointer previously returned by wiphy_priv
1138 static inline struct wiphy *priv_to_wiphy(void *priv)
1141 return container_of(priv, struct wiphy, priv);
1145 * set_wiphy_dev - set device pointer for wiphy
1147 * @wiphy: The wiphy whose device to bind
1148 * @dev: The device to parent it to
1150 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
1152 wiphy->dev.parent = dev;
1156 * wiphy_dev - get wiphy dev pointer
1158 * @wiphy: The wiphy whose device struct to look up
1160 static inline struct device *wiphy_dev(struct wiphy *wiphy)
1162 return wiphy->dev.parent;
1166 * wiphy_name - get wiphy name
1168 * @wiphy: The wiphy whose name to return
1170 static inline const char *wiphy_name(struct wiphy *wiphy)
1172 return dev_name(&wiphy->dev);
1176 * wiphy_new - create a new wiphy for use with cfg80211
1178 * @ops: The configuration operations for this device
1179 * @sizeof_priv: The size of the private area to allocate
1181 * Create a new wiphy and associate the given operations with it.
1182 * @sizeof_priv bytes are allocated for private use.
1184 * The returned pointer must be assigned to each netdev's
1185 * ieee80211_ptr for proper operation.
1187 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
1190 * wiphy_register - register a wiphy with cfg80211
1192 * @wiphy: The wiphy to register.
1194 * Returns a non-negative wiphy index or a negative error code.
1196 extern int wiphy_register(struct wiphy *wiphy);
1199 * wiphy_unregister - deregister a wiphy from cfg80211
1201 * @wiphy: The wiphy to unregister.
1203 * After this call, no more requests can be made with this priv
1204 * pointer, but the call may sleep to wait for an outstanding
1205 * request that is being handled.
1207 extern void wiphy_unregister(struct wiphy *wiphy);
1210 * wiphy_free - free wiphy
1212 * @wiphy: The wiphy to free
1214 extern void wiphy_free(struct wiphy *wiphy);
1216 /* internal struct */
1217 struct cfg80211_conn;
1220 * struct wireless_dev - wireless per-netdev state
1222 * This structure must be allocated by the driver/stack
1223 * that uses the ieee80211_ptr field in struct net_device
1224 * (this is intentional so it can be allocated along with
1227 * @wiphy: pointer to hardware description
1228 * @iftype: interface type
1229 * @list: (private) Used to collect the interfaces
1230 * @netdev: (private) Used to reference back to the netdev
1231 * @current_bss: (private) Used by the internal configuration code
1232 * @bssid: (private) Used by the internal configuration code
1233 * @ssid: (private) Used by the internal configuration code
1234 * @ssid_len: (private) Used by the internal configuration code
1235 * @wext: (private) Used by the internal wireless extensions compat code
1236 * @wext_bssid: (private) Used by the internal wireless extensions compat code
1238 struct wireless_dev {
1239 struct wiphy *wiphy;
1240 enum nl80211_iftype iftype;
1242 /* private to the generic wireless code */
1243 struct list_head list;
1244 struct net_device *netdev;
1246 /* currently used for IBSS and SME - might be rearranged later */
1247 struct cfg80211_bss *current_bss;
1248 u8 ssid[IEEE80211_MAX_SSID_LEN];
1252 CFG80211_SME_CONNECTING,
1253 CFG80211_SME_CONNECTED,
1255 struct cfg80211_conn *conn;
1257 #ifdef CONFIG_WIRELESS_EXT
1261 struct cfg80211_ibss_params ibss;
1262 struct cfg80211_connect_params connect;
1267 u8 ssid[IEEE80211_MAX_SSID_LEN];
1268 s8 default_key, default_mgmt_key;
1276 * wdev_priv - return wiphy priv from wireless_dev
1278 * @wdev: The wireless device whose wiphy's priv pointer to return
1280 static inline void *wdev_priv(struct wireless_dev *wdev)
1283 return wiphy_priv(wdev->wiphy);
1291 * ieee80211_channel_to_frequency - convert channel number to frequency
1293 extern int ieee80211_channel_to_frequency(int chan);
1296 * ieee80211_frequency_to_channel - convert frequency to channel number
1298 extern int ieee80211_frequency_to_channel(int freq);
1301 * Name indirection necessary because the ieee80211 code also has
1302 * a function named "ieee80211_get_channel", so if you include
1303 * cfg80211's header file you get cfg80211's version, if you try
1304 * to include both header files you'll (rightfully!) get a symbol
1307 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
1310 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
1312 static inline struct ieee80211_channel *
1313 ieee80211_get_channel(struct wiphy *wiphy, int freq)
1315 return __ieee80211_get_channel(wiphy, freq);
1319 * ieee80211_get_response_rate - get basic rate for a given rate
1321 * @sband: the band to look for rates in
1322 * @basic_rates: bitmap of basic rates
1323 * @bitrate: the bitrate for which to find the basic rate
1325 * This function returns the basic rate corresponding to a given
1326 * bitrate, that is the next lower bitrate contained in the basic
1327 * rate map, which is, for this function, given as a bitmap of
1328 * indices of rates in the band's bitrate table.
1330 struct ieee80211_rate *
1331 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
1332 u32 basic_rates, int bitrate);
1335 * Radiotap parsing functions -- for controlled injection support
1337 * Implemented in net/wireless/radiotap.c
1338 * Documentation in Documentation/networking/radiotap-headers.txt
1342 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
1343 * @rtheader: pointer to the radiotap header we are walking through
1344 * @max_length: length of radiotap header in cpu byte ordering
1345 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
1346 * @this_arg: pointer to current radiotap arg
1347 * @arg_index: internal next argument index
1348 * @arg: internal next argument pointer
1349 * @next_bitmap: internal pointer to next present u32
1350 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
1353 struct ieee80211_radiotap_iterator {
1354 struct ieee80211_radiotap_header *rtheader;
1361 __le32 *next_bitmap;
1365 extern int ieee80211_radiotap_iterator_init(
1366 struct ieee80211_radiotap_iterator *iterator,
1367 struct ieee80211_radiotap_header *radiotap_header,
1370 extern int ieee80211_radiotap_iterator_next(
1371 struct ieee80211_radiotap_iterator *iterator);
1373 extern const unsigned char rfc1042_header[6];
1374 extern const unsigned char bridge_tunnel_header[6];
1377 * ieee80211_get_hdrlen_from_skb - get header length from data
1379 * Given an skb with a raw 802.11 header at the data pointer this function
1380 * returns the 802.11 header length in bytes (not including encryption
1381 * headers). If the data in the sk_buff is too short to contain a valid 802.11
1382 * header the function returns 0.
1386 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
1389 * ieee80211_hdrlen - get header length in bytes from frame control
1390 * @fc: frame control field in little-endian format
1392 unsigned int ieee80211_hdrlen(__le16 fc);
1395 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
1396 * @skb: the 802.11 data frame
1397 * @addr: the device MAC address
1398 * @iftype: the virtual interface type
1400 int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
1401 enum nl80211_iftype iftype);
1404 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
1405 * @skb: the 802.3 frame
1406 * @addr: the device MAC address
1407 * @iftype: the virtual interface type
1408 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
1409 * @qos: build 802.11 QoS data frame
1411 int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
1412 enum nl80211_iftype iftype, u8 *bssid, bool qos);
1415 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
1416 * @skb: the data frame
1418 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
1421 * Regulatory helper functions for wiphys
1425 * regulatory_hint - driver hint to the wireless core a regulatory domain
1426 * @wiphy: the wireless device giving the hint (used only for reporting
1428 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
1429 * should be in. If @rd is set this should be NULL. Note that if you
1430 * set this to NULL you should still set rd->alpha2 to some accepted
1433 * Wireless drivers can use this function to hint to the wireless core
1434 * what it believes should be the current regulatory domain by
1435 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
1436 * domain should be in or by providing a completely build regulatory domain.
1437 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
1438 * for a regulatory domain structure for the respective country.
1440 * The wiphy must have been registered to cfg80211 prior to this call.
1441 * For cfg80211 drivers this means you must first use wiphy_register(),
1442 * for mac80211 drivers you must first use ieee80211_register_hw().
1444 * Drivers should check the return value, its possible you can get
1447 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
1450 * regulatory_hint_11d - hints a country IE as a regulatory domain
1451 * @wiphy: the wireless device giving the hint (used only for reporting
1453 * @country_ie: pointer to the country IE
1454 * @country_ie_len: length of the country IE
1456 * We will intersect the rd with the what CRDA tells us should apply
1457 * for the alpha2 this country IE belongs to, this prevents APs from
1458 * sending us incorrect or outdated information against a country.
1460 extern void regulatory_hint_11d(struct wiphy *wiphy,
1464 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
1465 * @wiphy: the wireless device we want to process the regulatory domain on
1466 * @regd: the custom regulatory domain to use for this wiphy
1468 * Drivers can sometimes have custom regulatory domains which do not apply
1469 * to a specific country. Drivers can use this to apply such custom regulatory
1470 * domains. This routine must be called prior to wiphy registration. The
1471 * custom regulatory domain will be trusted completely and as such previous
1472 * default channel settings will be disregarded. If no rule is found for a
1473 * channel on the regulatory domain the channel will be disabled.
1475 extern void wiphy_apply_custom_regulatory(
1476 struct wiphy *wiphy,
1477 const struct ieee80211_regdomain *regd);
1480 * freq_reg_info - get regulatory information for the given frequency
1481 * @wiphy: the wiphy for which we want to process this rule for
1482 * @center_freq: Frequency in KHz for which we want regulatory information for
1483 * @desired_bw_khz: the desired max bandwidth you want to use per
1484 * channel. Note that this is still 20 MHz if you want to use HT40
1485 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
1486 * If set to 0 we'll assume you want the standard 20 MHz.
1487 * @reg_rule: the regulatory rule which we have for this frequency
1489 * Use this function to get the regulatory rule for a specific frequency on
1490 * a given wireless device. If the device has a specific regulatory domain
1491 * it wants to follow we respect that unless a country IE has been received
1492 * and processed already.
1494 * Returns 0 if it was able to find a valid regulatory rule which does
1495 * apply to the given center_freq otherwise it returns non-zero. It will
1496 * also return -ERANGE if we determine the given center_freq does not even have
1497 * a regulatory rule for a frequency range in the center_freq's band. See
1498 * freq_in_rule_band() for our current definition of a band -- this is purely
1499 * subjective and right now its 802.11 specific.
1501 extern int freq_reg_info(struct wiphy *wiphy,
1504 const struct ieee80211_reg_rule **reg_rule);
1507 * Temporary wext handlers & helper functions
1509 * In the future cfg80211 will simply assign the entire wext handler
1510 * structure to netdevs it manages, but we're not there yet.
1512 int cfg80211_wext_giwname(struct net_device *dev,
1513 struct iw_request_info *info,
1514 char *name, char *extra);
1515 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
1516 u32 *mode, char *extra);
1517 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
1518 u32 *mode, char *extra);
1519 int cfg80211_wext_siwscan(struct net_device *dev,
1520 struct iw_request_info *info,
1521 union iwreq_data *wrqu, char *extra);
1522 int cfg80211_wext_giwscan(struct net_device *dev,
1523 struct iw_request_info *info,
1524 struct iw_point *data, char *extra);
1525 int cfg80211_wext_siwmlme(struct net_device *dev,
1526 struct iw_request_info *info,
1527 struct iw_point *data, char *extra);
1528 int cfg80211_wext_giwrange(struct net_device *dev,
1529 struct iw_request_info *info,
1530 struct iw_point *data, char *extra);
1531 int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
1532 struct iw_request_info *info,
1533 struct iw_freq *freq, char *extra);
1534 int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
1535 struct iw_request_info *info,
1536 struct iw_freq *freq, char *extra);
1537 int cfg80211_ibss_wext_siwessid(struct net_device *dev,
1538 struct iw_request_info *info,
1539 struct iw_point *data, char *ssid);
1540 int cfg80211_ibss_wext_giwessid(struct net_device *dev,
1541 struct iw_request_info *info,
1542 struct iw_point *data, char *ssid);
1543 int cfg80211_ibss_wext_siwap(struct net_device *dev,
1544 struct iw_request_info *info,
1545 struct sockaddr *ap_addr, char *extra);
1546 int cfg80211_ibss_wext_giwap(struct net_device *dev,
1547 struct iw_request_info *info,
1548 struct sockaddr *ap_addr, char *extra);
1550 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
1551 struct iw_request_info *info,
1552 struct iw_freq *freq, char *extra);
1553 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
1554 struct iw_request_info *info,
1555 struct iw_freq *freq, char *extra);
1556 int cfg80211_mgd_wext_siwessid(struct net_device *dev,
1557 struct iw_request_info *info,
1558 struct iw_point *data, char *ssid);
1559 int cfg80211_mgd_wext_giwessid(struct net_device *dev,
1560 struct iw_request_info *info,
1561 struct iw_point *data, char *ssid);
1562 int cfg80211_mgd_wext_siwap(struct net_device *dev,
1563 struct iw_request_info *info,
1564 struct sockaddr *ap_addr, char *extra);
1565 int cfg80211_mgd_wext_giwap(struct net_device *dev,
1566 struct iw_request_info *info,
1567 struct sockaddr *ap_addr, char *extra);
1568 int cfg80211_wext_siwgenie(struct net_device *dev,
1569 struct iw_request_info *info,
1570 struct iw_point *data, char *extra);
1571 int cfg80211_wext_siwauth(struct net_device *dev,
1572 struct iw_request_info *info,
1573 struct iw_param *data, char *extra);
1574 int cfg80211_wext_giwauth(struct net_device *dev,
1575 struct iw_request_info *info,
1576 struct iw_param *data, char *extra);
1578 struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
1579 struct iw_freq *freq);
1581 int cfg80211_wext_siwrts(struct net_device *dev,
1582 struct iw_request_info *info,
1583 struct iw_param *rts, char *extra);
1584 int cfg80211_wext_giwrts(struct net_device *dev,
1585 struct iw_request_info *info,
1586 struct iw_param *rts, char *extra);
1587 int cfg80211_wext_siwfrag(struct net_device *dev,
1588 struct iw_request_info *info,
1589 struct iw_param *frag, char *extra);
1590 int cfg80211_wext_giwfrag(struct net_device *dev,
1591 struct iw_request_info *info,
1592 struct iw_param *frag, char *extra);
1593 int cfg80211_wext_siwretry(struct net_device *dev,
1594 struct iw_request_info *info,
1595 struct iw_param *retry, char *extra);
1596 int cfg80211_wext_giwretry(struct net_device *dev,
1597 struct iw_request_info *info,
1598 struct iw_param *retry, char *extra);
1599 int cfg80211_wext_siwencodeext(struct net_device *dev,
1600 struct iw_request_info *info,
1601 struct iw_point *erq, char *extra);
1602 int cfg80211_wext_siwencode(struct net_device *dev,
1603 struct iw_request_info *info,
1604 struct iw_point *erq, char *keybuf);
1605 int cfg80211_wext_giwencode(struct net_device *dev,
1606 struct iw_request_info *info,
1607 struct iw_point *erq, char *keybuf);
1608 int cfg80211_wext_siwtxpower(struct net_device *dev,
1609 struct iw_request_info *info,
1610 union iwreq_data *data, char *keybuf);
1611 int cfg80211_wext_giwtxpower(struct net_device *dev,
1612 struct iw_request_info *info,
1613 union iwreq_data *data, char *keybuf);
1615 int cfg80211_wext_siwpower(struct net_device *dev,
1616 struct iw_request_info *info,
1617 struct iw_param *wrq, char *extra);
1618 int cfg80211_wext_giwpower(struct net_device *dev,
1619 struct iw_request_info *info,
1620 struct iw_param *wrq, char *extra);
1623 * callbacks for asynchronous cfg80211 methods, notification
1624 * functions and BSS handling helpers
1628 * cfg80211_scan_done - notify that scan finished
1630 * @request: the corresponding scan request
1631 * @aborted: set to true if the scan was aborted for any reason,
1632 * userspace will be notified of that
1634 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
1637 * cfg80211_inform_bss - inform cfg80211 of a new BSS
1639 * @wiphy: the wiphy reporting the BSS
1640 * @bss: the found BSS
1641 * @signal: the signal strength, type depends on the wiphy's signal_type
1642 * @gfp: context flags
1644 * This informs cfg80211 that BSS information was found and
1645 * the BSS should be updated/added.
1647 struct cfg80211_bss*
1648 cfg80211_inform_bss_frame(struct wiphy *wiphy,
1649 struct ieee80211_channel *channel,
1650 struct ieee80211_mgmt *mgmt, size_t len,
1651 s32 signal, gfp_t gfp);
1653 struct cfg80211_bss*
1654 cfg80211_inform_bss(struct wiphy *wiphy,
1655 struct ieee80211_channel *channel,
1657 u64 timestamp, u16 capability, u16 beacon_interval,
1658 const u8 *ie, size_t ielen,
1659 s32 signal, gfp_t gfp);
1661 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
1662 struct ieee80211_channel *channel,
1664 const u8 *ssid, size_t ssid_len,
1665 u16 capa_mask, u16 capa_val);
1666 static inline struct cfg80211_bss *
1667 cfg80211_get_ibss(struct wiphy *wiphy,
1668 struct ieee80211_channel *channel,
1669 const u8 *ssid, size_t ssid_len)
1671 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
1672 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1675 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
1676 struct ieee80211_channel *channel,
1677 const u8 *meshid, size_t meshidlen,
1679 void cfg80211_put_bss(struct cfg80211_bss *bss);
1682 * cfg80211_unlink_bss - unlink BSS from internal data structures
1684 * @bss: the bss to remove
1686 * This function removes the given BSS from the internal data structures
1687 * thereby making it no longer show up in scan results etc. Use this
1688 * function when you detect a BSS is gone. Normally BSSes will also time
1689 * out, so it is not necessary to use this function at all.
1691 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
1694 * cfg80211_send_rx_auth - notification of processed authentication
1695 * @dev: network device
1696 * @buf: authentication frame (header + body)
1697 * @len: length of the frame data
1698 * @gfp: allocation flags
1700 * This function is called whenever an authentication has been processed in
1701 * station mode. The driver is required to call either this function or
1702 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
1705 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
1708 * cfg80211_send_auth_timeout - notification of timed out authentication
1709 * @dev: network device
1710 * @addr: The MAC address of the device with which the authentication timed out
1711 * @gfp: allocation flags
1713 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp);
1716 * cfg80211_send_rx_assoc - notification of processed association
1717 * @dev: network device
1718 * @buf: (re)association response frame (header + body)
1719 * @len: length of the frame data
1720 * @gfp: allocation flags
1722 * This function is called whenever a (re)association response has been
1723 * processed in station mode. The driver is required to call either this
1724 * function or cfg80211_send_assoc_timeout() to indicate the result of
1725 * cfg80211_ops::assoc() call.
1727 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
1730 * cfg80211_send_assoc_timeout - notification of timed out association
1731 * @dev: network device
1732 * @addr: The MAC address of the device with which the association timed out
1733 * @gfp: allocation flags
1735 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp);
1738 * cfg80211_send_deauth - notification of processed deauthentication
1739 * @dev: network device
1740 * @buf: deauthentication frame (header + body)
1741 * @len: length of the frame data
1742 * @gfp: allocation flags
1744 * This function is called whenever deauthentication has been processed in
1745 * station mode. This includes both received deauthentication frames and
1746 * locally generated ones.
1748 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
1751 * cfg80211_send_disassoc - notification of processed disassociation
1752 * @dev: network device
1753 * @buf: disassociation response frame (header + body)
1754 * @len: length of the frame data
1755 * @gfp: allocation flags
1757 * This function is called whenever disassociation has been processed in
1758 * station mode. This includes both received disassociation frames and locally
1761 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
1764 * cfg80211_hold_bss - exclude bss from expiration
1765 * @bss: bss which should not expire
1767 * In a case when the BSS is not updated but it shouldn't expire this
1768 * function can be used to mark the BSS to be excluded from expiration.
1770 void cfg80211_hold_bss(struct cfg80211_bss *bss);
1773 * cfg80211_unhold_bss - remove expiration exception from the BSS
1774 * @bss: bss which can expire again
1776 * This function marks the BSS to be expirable again.
1778 void cfg80211_unhold_bss(struct cfg80211_bss *bss);
1781 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
1782 * @dev: network device
1783 * @addr: The source MAC address of the frame
1784 * @key_type: The key type that the received frame used
1785 * @key_id: Key identifier (0..3)
1786 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
1787 * @gfp: allocation flags
1789 * This function is called whenever the local MAC detects a MIC failure in a
1790 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
1793 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
1794 enum nl80211_key_type key_type, int key_id,
1795 const u8 *tsc, gfp_t gfp);
1798 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
1800 * @dev: network device
1801 * @bssid: the BSSID of the IBSS joined
1802 * @gfp: allocation flags
1804 * This function notifies cfg80211 that the device joined an IBSS or
1805 * switched to a different BSSID. Before this function can be called,
1806 * either a beacon has to have been received from the IBSS, or one of
1807 * the cfg80211_inform_bss{,_frame} functions must have been called
1808 * with the locally generated beacon -- this guarantees that there is
1809 * always a scan result for this IBSS. cfg80211 will handle the rest.
1811 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
1814 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
1816 * @blocked: block status
1818 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
1821 * wiphy_rfkill_start_polling - start polling rfkill
1824 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
1827 * wiphy_rfkill_stop_polling - stop polling rfkill
1830 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
1832 #ifdef CONFIG_NL80211_TESTMODE
1834 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
1836 * @approxlen: an upper bound of the length of the data that will
1837 * be put into the skb
1839 * This function allocates and pre-fills an skb for a reply to
1840 * the testmode command. Since it is intended for a reply, calling
1841 * it outside of the @testmode_cmd operation is invalid.
1843 * The returned skb (or %NULL if any errors happen) is pre-filled
1844 * with the wiphy index and set up in a way that any data that is
1845 * put into the skb (with skb_put(), nla_put() or similar) will end
1846 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
1847 * needs to be done with the skb is adding data for the corresponding
1848 * userspace tool which can then read that data out of the testdata
1849 * attribute. You must not modify the skb in any other way.
1851 * When done, call cfg80211_testmode_reply() with the skb and return
1852 * its error code as the result of the @testmode_cmd operation.
1854 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
1858 * cfg80211_testmode_reply - send the reply skb
1859 * @skb: The skb, must have been allocated with
1860 * cfg80211_testmode_alloc_reply_skb()
1862 * Returns an error code or 0 on success, since calling this
1863 * function will usually be the last thing before returning
1864 * from the @testmode_cmd you should return the error code.
1865 * Note that this function consumes the skb regardless of the
1868 int cfg80211_testmode_reply(struct sk_buff *skb);
1871 * cfg80211_testmode_alloc_event_skb - allocate testmode event
1873 * @approxlen: an upper bound of the length of the data that will
1874 * be put into the skb
1875 * @gfp: allocation flags
1877 * This function allocates and pre-fills an skb for an event on the
1878 * testmode multicast group.
1880 * The returned skb (or %NULL if any errors happen) is set up in the
1881 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
1882 * for an event. As there, you should simply add data to it that will
1883 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
1884 * not modify the skb in any other way.
1886 * When done filling the skb, call cfg80211_testmode_event() with the
1887 * skb to send the event.
1889 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
1890 int approxlen, gfp_t gfp);
1893 * cfg80211_testmode_event - send the event
1894 * @skb: The skb, must have been allocated with
1895 * cfg80211_testmode_alloc_event_skb()
1896 * @gfp: allocation flags
1898 * This function sends the given @skb, which must have been allocated
1899 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
1902 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
1904 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
1906 #define CFG80211_TESTMODE_CMD(cmd)
1910 * cfg80211_connect_result - notify cfg80211 of connection result
1912 * @dev: network device
1913 * @bssid: the BSSID of the AP
1914 * @req_ie: association request IEs (maybe be %NULL)
1915 * @req_ie_len: association request IEs length
1916 * @resp_ie: association response IEs (may be %NULL)
1917 * @resp_ie_len: assoc response IEs length
1918 * @status: status code, 0 for successful connection, use
1919 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
1920 * the real status code for failures.
1921 * @gfp: allocation flags
1923 * It should be called by the underlying driver whenever connect() has
1926 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
1927 const u8 *req_ie, size_t req_ie_len,
1928 const u8 *resp_ie, size_t resp_ie_len,
1929 u16 status, gfp_t gfp);
1932 * cfg80211_roamed - notify cfg80211 of roaming
1934 * @dev: network device
1935 * @bssid: the BSSID of the new AP
1936 * @req_ie: association request IEs (maybe be %NULL)
1937 * @req_ie_len: association request IEs length
1938 * @resp_ie: association response IEs (may be %NULL)
1939 * @resp_ie_len: assoc response IEs length
1940 * @gfp: allocation flags
1942 * It should be called by the underlying driver whenever it roamed
1943 * from one AP to another while connected.
1945 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
1946 const u8 *req_ie, size_t req_ie_len,
1947 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
1950 * cfg80211_disconnected - notify cfg80211 that connection was dropped
1952 * @dev: network device
1953 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
1954 * @ie_len: length of IEs
1955 * @reason: reason code for the disconnection, set it to 0 if unknown
1956 * @gfp: allocation flags
1958 * After it calls this function, the driver should enter an idle state
1959 * and not try to connect to any AP any more.
1961 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1962 u8 *ie, size_t ie_len, gfp_t gfp);
1965 #endif /* __NET_CFG80211_H */