cfg80211.h 123.3 KB
Newer Older
1 2
#ifndef __NET_CFG80211_H
#define __NET_CFG80211_H
J
Johannes Berg 已提交
3 4 5
/*
 * 802.11 device and configuration interface
 *
6
 * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
J
Johannes Berg 已提交
7 8 9 10 11
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
12

J
Johannes Berg 已提交
13 14 15
#include <linux/netdevice.h>
#include <linux/debugfs.h>
#include <linux/list.h>
16
#include <linux/bug.h>
17 18
#include <linux/netlink.h>
#include <linux/skbuff.h>
19
#include <linux/nl80211.h>
20 21
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
J
Johannes Berg 已提交
22 23
#include <net/regulatory.h>

J
Johannes Berg 已提交
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
/**
 * DOC: Introduction
 *
 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
 * userspace and drivers, and offers some utility functionality associated
 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
 * by all modern wireless drivers in Linux, so that they offer a consistent
 * API through nl80211. For backward compatibility, cfg80211 also offers
 * wireless extensions to userspace, but hides them from drivers completely.
 *
 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
 * use restrictions.
 */


/**
 * DOC: Device registration
 *
 * In order for a driver to use cfg80211, it must register the hardware device
 * with cfg80211. This happens through a number of hardware capability structs
 * described below.
 *
 * The fundamental structure for each device is the 'wiphy', of which each
 * instance describes a physical wireless device connected to the system. Each
 * such wiphy can have zero, one, or many virtual interfaces associated with
 * it, which need to be identified as such by pointing the network interface's
 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
 * the wireless part of the interface, normally this struct is embedded in the
 * network interface's private data area. Drivers can optionally allow creating
 * or destroying virtual interfaces on the fly, but without at least one or the
 * ability to create some the wireless device isn't useful.
 *
 * Each wiphy structure contains device capability information, and also has
 * a pointer to the various operations the driver offers. The definitions and
 * structures here describe these capabilities in detail.
 */

61
/*
J
Johannes Berg 已提交
62 63 64 65 66 67 68 69
 * wireless hardware capability structures
 */

/**
 * enum ieee80211_band - supported frequency bands
 *
 * The bands are assigned this way because the supported
 * bitrates differ in these bands.
70
 *
J
Johannes Berg 已提交
71 72
 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
73
 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
J
Johannes Berg 已提交
74
 * @IEEE80211_NUM_BANDS: number of defined bands
75
 */
J
Johannes Berg 已提交
76
enum ieee80211_band {
77 78
	IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
	IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
79
	IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
J
Johannes Berg 已提交
80 81 82 83

	/* keep last */
	IEEE80211_NUM_BANDS
};
84

85
/**
J
Johannes Berg 已提交
86 87 88 89 90 91 92 93 94
 * enum ieee80211_channel_flags - channel flags
 *
 * Channel flags set by the regulatory control code.
 *
 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
 *	on this channel.
 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
95
 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
J
Johannes Berg 已提交
96
 * 	is not permitted.
97
 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
J
Johannes Berg 已提交
98
 * 	is not permitted.
99
 */
J
Johannes Berg 已提交
100 101 102 103 104
enum ieee80211_channel_flags {
	IEEE80211_CHAN_DISABLED		= 1<<0,
	IEEE80211_CHAN_PASSIVE_SCAN	= 1<<1,
	IEEE80211_CHAN_NO_IBSS		= 1<<2,
	IEEE80211_CHAN_RADAR		= 1<<3,
105 106
	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
107 108
};

109
#define IEEE80211_CHAN_NO_HT40 \
110
	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
111

J
Johannes Berg 已提交
112 113 114 115 116 117 118 119 120 121 122 123 124 125
/**
 * struct ieee80211_channel - channel definition
 *
 * This structure describes a single channel for use
 * with cfg80211.
 *
 * @center_freq: center frequency in MHz
 * @hw_value: hardware-specific value for the channel
 * @flags: channel flags from &enum ieee80211_channel_flags.
 * @orig_flags: channel flags at registration time, used by regulatory
 *	code to support devices with additional restrictions
 * @band: band this channel belongs to.
 * @max_antenna_gain: maximum antenna gain in dBi
 * @max_power: maximum transmission power (in dBm)
126
 * @max_reg_power: maximum regulatory transmission power (in dBm)
J
Johannes Berg 已提交
127 128
 * @beacon_found: helper to regulatory code to indicate when a beacon
 *	has been found on this channel. Use regulatory_hint_found_beacon()
129
 *	to enable this, this is useful only on 5 GHz band.
J
Johannes Berg 已提交
130 131
 * @orig_mag: internal use
 * @orig_mpwr: internal use
A
Andy Green 已提交
132
 */
J
Johannes Berg 已提交
133 134 135 136 137 138 139
struct ieee80211_channel {
	enum ieee80211_band band;
	u16 center_freq;
	u16 hw_value;
	u32 flags;
	int max_antenna_gain;
	int max_power;
140
	int max_reg_power;
J
Johannes Berg 已提交
141 142 143 144 145
	bool beacon_found;
	u32 orig_flags;
	int orig_mag, orig_mpwr;
};

A
Andy Green 已提交
146
/**
J
Johannes Berg 已提交
147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
 * enum ieee80211_rate_flags - rate flags
 *
 * Hardware/specification flags for rates. These are structured
 * in a way that allows using the same bitrate structure for
 * different bands/PHY modes.
 *
 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
 *	preamble on this bitrate; only relevant in 2.4GHz band and
 *	with CCK rates.
 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
 *	when used with 802.11a (on the 5 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
 *	when used with 802.11b (on the 2.4 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
 *	when used with 802.11g (on the 2.4 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
A
Andy Green 已提交
166
 */
J
Johannes Berg 已提交
167 168 169 170 171 172 173
enum ieee80211_rate_flags {
	IEEE80211_RATE_SHORT_PREAMBLE	= 1<<0,
	IEEE80211_RATE_MANDATORY_A	= 1<<1,
	IEEE80211_RATE_MANDATORY_B	= 1<<2,
	IEEE80211_RATE_MANDATORY_G	= 1<<3,
	IEEE80211_RATE_ERP_G		= 1<<4,
};
A
Andy Green 已提交
174

J
Johannes Berg 已提交
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193
/**
 * struct ieee80211_rate - bitrate definition
 *
 * This structure describes a bitrate that an 802.11 PHY can
 * operate with. The two values @hw_value and @hw_value_short
 * are only for driver use when pointers to this structure are
 * passed around.
 *
 * @flags: rate-specific flags
 * @bitrate: bitrate in units of 100 Kbps
 * @hw_value: driver/hardware value for this rate
 * @hw_value_short: driver/hardware value for this rate when
 *	short preamble is used
 */
struct ieee80211_rate {
	u32 flags;
	u16 bitrate;
	u16 hw_value, hw_value_short;
};
A
Andy Green 已提交
194

J
Johannes Berg 已提交
195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
/**
 * struct ieee80211_sta_ht_cap - STA's HT capabilities
 *
 * This structure describes most essential parameters needed
 * to describe 802.11n HT capabilities for an STA.
 *
 * @ht_supported: is HT supported by the STA
 * @cap: HT capabilities map as described in 802.11n spec
 * @ampdu_factor: Maximum A-MPDU length factor
 * @ampdu_density: Minimum A-MPDU spacing
 * @mcs: Supported MCS rates
 */
struct ieee80211_sta_ht_cap {
	u16 cap; /* use IEEE80211_HT_CAP_ */
	bool ht_supported;
	u8 ampdu_factor;
	u8 ampdu_density;
	struct ieee80211_mcs_info mcs;
A
Andy Green 已提交
213 214
};

215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230
/**
 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
 *
 * This structure describes most essential parameters needed
 * to describe 802.11ac VHT capabilities for an STA.
 *
 * @vht_supported: is VHT supported by the STA
 * @cap: VHT capabilities map as described in 802.11ac spec
 * @vht_mcs: Supported VHT MCS rates
 */
struct ieee80211_sta_vht_cap {
	bool vht_supported;
	u32 cap; /* use IEEE80211_VHT_CAP_ */
	struct ieee80211_vht_mcs_info vht_mcs;
};

J
Johannes Berg 已提交
231 232 233 234 235 236 237 238 239 240 241 242 243 244
/**
 * struct ieee80211_supported_band - frequency band definition
 *
 * This structure describes a frequency band a wiphy
 * is able to operate in.
 *
 * @channels: Array of channels the hardware can operate in
 *	in this band.
 * @band: the band this structure represents
 * @n_channels: Number of channels in @channels
 * @bitrates: Array of bitrates the hardware can operate with
 *	in this band. Must be sorted to give a valid "supported
 *	rates" IE, i.e. CCK rates first, then OFDM.
 * @n_bitrates: Number of bitrates in @bitrates
J
Johannes Berg 已提交
245
 * @ht_cap: HT capabilities in this band
J
Johannes Berg 已提交
246 247 248 249 250 251 252 253
 */
struct ieee80211_supported_band {
	struct ieee80211_channel *channels;
	struct ieee80211_rate *bitrates;
	enum ieee80211_band band;
	int n_channels;
	int n_bitrates;
	struct ieee80211_sta_ht_cap ht_cap;
254
	struct ieee80211_sta_vht_cap vht_cap;
J
Johannes Berg 已提交
255
};
A
Andy Green 已提交
256

J
Johannes Berg 已提交
257 258 259
/*
 * Wireless hardware/device configuration structures and methods
 */
A
Andy Green 已提交
260

J
Johannes Berg 已提交
261 262 263 264 265 266 267 268 269 270 271 272 273 274 275
/**
 * DOC: Actions and configuration
 *
 * Each wireless device and each virtual interface offer a set of configuration
 * operations and other actions that are invoked by userspace. Each of these
 * actions is described in the operations structure, and the parameters these
 * operations use are described separately.
 *
 * Additionally, some operations are asynchronous and expect to get status
 * information via some functions that drivers need to call.
 *
 * Scanning and BSS list handling with its associated functionality is described
 * in a separate chapter.
 */

J
Johannes Berg 已提交
276 277
/**
 * struct vif_params - describes virtual interface parameters
278
 * @use_4addr: use 4-address frames
J
Johannes Berg 已提交
279 280
 */
struct vif_params {
281
       int use_4addr;
J
Johannes Berg 已提交
282
};
A
Andy Green 已提交
283

J
Johannes Berg 已提交
284
/**
285 286 287 288 289 290 291 292 293 294
 * struct key_params - key information
 *
 * Information about a key
 *
 * @key: key material
 * @key_len: length of key material
 * @cipher: cipher suite selector
 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
 *	with the get_key() callback, must be in little endian,
 *	length given by @seq_len.
J
Johannes Berg 已提交
295
 * @seq_len: length of @seq.
296 297 298 299 300 301 302 303 304
 */
struct key_params {
	u8 *key;
	u8 *seq;
	int key_len;
	int seq_len;
	u32 cipher;
};

305 306 307
/**
 * enum survey_info_flags - survey information flags
 *
J
Johannes Berg 已提交
308
 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
309
 * @SURVEY_INFO_IN_USE: channel is currently being used
310 311 312 313 314
 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
J
Johannes Berg 已提交
315
 *
316 317 318 319 320
 * Used by the driver to indicate which info in &struct survey_info
 * it has filled in during the get_survey().
 */
enum survey_info_flags {
	SURVEY_INFO_NOISE_DBM = 1<<0,
321
	SURVEY_INFO_IN_USE = 1<<1,
322 323 324 325 326
	SURVEY_INFO_CHANNEL_TIME = 1<<2,
	SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
	SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
	SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
	SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
327 328 329 330 331 332 333 334 335
};

/**
 * struct survey_info - channel survey response
 *
 * @channel: the channel this survey record reports, mandatory
 * @filled: bitflag of flags from &enum survey_info_flags
 * @noise: channel noise in dBm. This and all following fields are
 *     optional
336 337 338 339 340
 * @channel_time: amount of time in ms the radio spent on the channel
 * @channel_time_busy: amount of time the primary channel was sensed busy
 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
 * @channel_time_rx: amount of time the radio spent receiving data
 * @channel_time_tx: amount of time the radio spent transmitting data
341
 *
J
Johannes Berg 已提交
342 343
 * Used by dump_survey() to report back per-channel survey information.
 *
344 345 346 347 348
 * This structure can later be expanded with things like
 * channel duty cycle etc.
 */
struct survey_info {
	struct ieee80211_channel *channel;
349 350 351 352 353
	u64 channel_time;
	u64 channel_time_busy;
	u64 channel_time_ext_busy;
	u64 channel_time_rx;
	u64 channel_time_tx;
354 355 356 357
	u32 filled;
	s8 noise;
};

358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
/**
 * struct cfg80211_crypto_settings - Crypto settings
 * @wpa_versions: indicates which, if any, WPA versions are enabled
 *	(from enum nl80211_wpa_versions)
 * @cipher_group: group key cipher suite (or 0 if unset)
 * @n_ciphers_pairwise: number of AP supported unicast ciphers
 * @ciphers_pairwise: unicast key cipher suites
 * @n_akm_suites: number of AKM suites
 * @akm_suites: AKM suites
 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
 *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
 *	required to assume that the port is unauthorized until authorized by
 *	user space. Otherwise, port is marked authorized by default.
 * @control_port_ethertype: the control port protocol that should be
 *	allowed through even on unauthorized ports
 * @control_port_no_encrypt: TRUE to prevent encryption of control port
 *	protocol frames.
 */
struct cfg80211_crypto_settings {
	u32 wpa_versions;
	u32 cipher_group;
	int n_ciphers_pairwise;
	u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
	int n_akm_suites;
	u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
	bool control_port;
	__be16 control_port_ethertype;
	bool control_port_no_encrypt;
};

388
/**
389
 * struct cfg80211_beacon_data - beacon data
390 391 392 393 394 395
 * @head: head portion of beacon (before TIM IE)
 *     or %NULL if not changed
 * @tail: tail portion of beacon (after TIM IE)
 *     or %NULL if not changed
 * @head_len: length of @head
 * @tail_len: length of @tail
396 397 398 399 400 401 402 403
 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
 * @beacon_ies_len: length of beacon_ies in octets
 * @proberesp_ies: extra information element(s) to add into Probe Response
 *	frames or %NULL
 * @proberesp_ies_len: length of proberesp_ies in octets
 * @assocresp_ies: extra information element(s) to add into (Re)Association
 *	Response frames or %NULL
 * @assocresp_ies_len: length of assocresp_ies in octets
404 405
 * @probe_resp_len: length of probe response template (@probe_resp)
 * @probe_resp: probe response template (AP mode only)
406
 */
407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425
struct cfg80211_beacon_data {
	const u8 *head, *tail;
	const u8 *beacon_ies;
	const u8 *proberesp_ies;
	const u8 *assocresp_ies;
	const u8 *probe_resp;

	size_t head_len, tail_len;
	size_t beacon_ies_len;
	size_t proberesp_ies_len;
	size_t assocresp_ies_len;
	size_t probe_resp_len;
};

/**
 * struct cfg80211_ap_settings - AP configuration
 *
 * Used to configure an AP interface.
 *
426 427
 * @channel: the channel to start the AP on
 * @channel_type: the channel type to use
428 429 430 431 432 433 434 435 436 437
 * @beacon: beacon data
 * @beacon_interval: beacon interval
 * @dtim_period: DTIM period
 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
 *	user space)
 * @ssid_len: length of @ssid
 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
 * @crypto: crypto settings
 * @privacy: the BSS uses privacy
 * @auth_type: Authentication type (algorithm)
438
 * @inactivity_timeout: time in seconds to determine station's inactivity.
439 440
 */
struct cfg80211_ap_settings {
441 442 443
	struct ieee80211_channel *channel;
	enum nl80211_channel_type channel_type;

444 445 446
	struct cfg80211_beacon_data beacon;

	int beacon_interval, dtim_period;
447 448 449
	const u8 *ssid;
	size_t ssid_len;
	enum nl80211_hidden_ssid hidden_ssid;
450 451 452
	struct cfg80211_crypto_settings crypto;
	bool privacy;
	enum nl80211_auth_type auth_type;
453
	int inactivity_timeout;
454 455
};

456 457 458 459 460
/**
 * enum plink_action - actions to perform in mesh peers
 *
 * @PLINK_ACTION_INVALID: action 0 is reserved
 * @PLINK_ACTION_OPEN: start mesh peer link establishment
J
Johannes Berg 已提交
461
 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
462 463 464 465 466 467 468
 */
enum plink_actions {
	PLINK_ACTION_INVALID,
	PLINK_ACTION_OPEN,
	PLINK_ACTION_BLOCK,
};

469 470 471 472 473 474 475 476 477 478 479
/**
 * enum station_parameters_apply_mask - station parameter values to apply
 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
 *
 * Not all station parameters have in-band "no change" signalling,
 * for those that don't these flags will are used.
 */
enum station_parameters_apply_mask {
	STATION_PARAM_APPLY_UAPSD = BIT(0),
};

480 481 482 483 484 485 486 487 488
/**
 * struct station_parameters - station parameters
 *
 * Used to change and create a new station.
 *
 * @vlan: vlan interface station should belong to
 * @supported_rates: supported rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @supported_rates_len: number of supported rates
489 490 491 492
 * @sta_flags_mask: station flags that changed
 *	(bitmask of BIT(NL80211_STA_FLAG_...))
 * @sta_flags_set: station flags values
 *	(bitmask of BIT(NL80211_STA_FLAG_...))
493 494
 * @listen_interval: listen interval or -1 for no change
 * @aid: AID or zero for no change
J
Johannes Berg 已提交
495
 * @plink_action: plink action to take
496
 * @plink_state: set the peer link state for a station
J
Johannes Berg 已提交
497
 * @ht_capa: HT capabilities of station
498 499 500 501
 * @uapsd_queues: bitmap of queues configured for uapsd. same format
 *	as the AC bitmap in the QoS info field
 * @max_sp: max Service Period. same format as the MAX_SP in the
 *	QoS info field (but already shifted down)
J
Johannes Berg 已提交
502 503 504
 * @sta_modify_mask: bitmap indicating which parameters changed
 *	(for those that don't have a natural "no change" value),
 *	see &enum station_parameters_apply_mask
505 506 507 508
 */
struct station_parameters {
	u8 *supported_rates;
	struct net_device *vlan;
509
	u32 sta_flags_mask, sta_flags_set;
510
	u32 sta_modify_mask;
511 512 513
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
514
	u8 plink_action;
515
	u8 plink_state;
516
	struct ieee80211_ht_cap *ht_capa;
517 518
	u8 uapsd_queues;
	u8 max_sp;
519 520
};

521
/**
522
 * enum station_info_flags - station information flags
523
 *
524 525
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
526
 *
527 528 529 530 531 532
 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
 * @STATION_INFO_RX_BYTES: @rx_bytes filled
 * @STATION_INFO_TX_BYTES: @tx_bytes filled
 * @STATION_INFO_LLID: @llid filled
 * @STATION_INFO_PLID: @plid filled
 * @STATION_INFO_PLINK_STATE: @plink_state filled
533
 * @STATION_INFO_SIGNAL: @signal filled
534
 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
535
 *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
536 537
 * @STATION_INFO_RX_PACKETS: @rx_packets filled
 * @STATION_INFO_TX_PACKETS: @tx_packets filled
538 539
 * @STATION_INFO_TX_RETRIES: @tx_retries filled
 * @STATION_INFO_TX_FAILED: @tx_failed filled
540
 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
541
 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
542
 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
543
 * @STATION_INFO_BSS_PARAM: @bss_param filled
544
 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
545
 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
546
 * @STATION_INFO_STA_FLAGS: @sta_flags filled
547
 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
548
 * @STATION_INFO_T_OFFSET: @t_offset filled
549
 */
550 551 552 553 554 555 556
enum station_info_flags {
	STATION_INFO_INACTIVE_TIME	= 1<<0,
	STATION_INFO_RX_BYTES		= 1<<1,
	STATION_INFO_TX_BYTES		= 1<<2,
	STATION_INFO_LLID		= 1<<3,
	STATION_INFO_PLID		= 1<<4,
	STATION_INFO_PLINK_STATE	= 1<<5,
557 558
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
559 560
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
561 562
	STATION_INFO_TX_RETRIES		= 1<<10,
	STATION_INFO_TX_FAILED		= 1<<11,
563
	STATION_INFO_RX_DROP_MISC	= 1<<12,
564
	STATION_INFO_SIGNAL_AVG		= 1<<13,
565
	STATION_INFO_RX_BITRATE		= 1<<14,
566
	STATION_INFO_BSS_PARAM          = 1<<15,
567
	STATION_INFO_CONNECTED_TIME	= 1<<16,
568
	STATION_INFO_ASSOC_REQ_IES	= 1<<17,
569
	STATION_INFO_STA_FLAGS		= 1<<18,
570 571
	STATION_INFO_BEACON_LOSS_COUNT	= 1<<19,
	STATION_INFO_T_OFFSET		= 1<<20,
572 573 574 575 576 577 578 579 580 581 582
};

/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
583
 * @RATE_INFO_FLAGS_60G: 60gHz MCS
584 585 586 587 588
 */
enum rate_info_flags {
	RATE_INFO_FLAGS_MCS		= 1<<0,
	RATE_INFO_FLAGS_40_MHZ_WIDTH	= 1<<1,
	RATE_INFO_FLAGS_SHORT_GI	= 1<<2,
589
	RATE_INFO_FLAGS_60G		= 1<<3,
590 591 592 593 594 595 596 597 598 599 600 601 602 603 604
};

/**
 * struct rate_info - bitrate information
 *
 * Information about a receiving or transmitting bitrate
 *
 * @flags: bitflag of flags from &enum rate_info_flags
 * @mcs: mcs index if struct describes a 802.11n bitrate
 * @legacy: bitrate in 100kbit/s for 802.11abg
 */
struct rate_info {
	u8 flags;
	u8 mcs;
	u16 legacy;
605 606
};

607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637
/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
 */
enum bss_param_flags {
	BSS_PARAM_FLAGS_CTS_PROT	= 1<<0,
	BSS_PARAM_FLAGS_SHORT_PREAMBLE	= 1<<1,
	BSS_PARAM_FLAGS_SHORT_SLOT_TIME	= 1<<2,
};

/**
 * struct sta_bss_parameters - BSS parameters for the attached station
 *
 * Information about the currently associated BSS
 *
 * @flags: bitflag of flags from &enum bss_param_flags
 * @dtim_period: DTIM period for the BSS
 * @beacon_interval: beacon interval
 */
struct sta_bss_parameters {
	u8 flags;
	u8 dtim_period;
	u16 beacon_interval;
};

638
/**
639
 * struct station_info - station information
640
 *
641
 * Station information filled by driver for get_station() and dump_station.
642
 *
643
 * @filled: bitflag of flags from &enum station_info_flags
644
 * @connected_time: time(in secs) since a station is last connected
645 646 647
 * @inactive_time: time since last station activity (tx/rx) in milliseconds
 * @rx_bytes: bytes received from this station
 * @tx_bytes: bytes transmitted to this station
648 649 650
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
J
Johannes Berg 已提交
651 652 653 654
 * @signal: The signal strength, type depends on the wiphy's signal_type.
 *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
 *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
655 656
 * @txrate: current unicast bitrate from this station
 * @rxrate: current unicast bitrate to this station
657 658
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
659 660
 * @tx_retries: cumulative retry counts
 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
661
 * @rx_dropped_misc:  Dropped for un-specified reason.
662
 * @bss_param: current BSS parameters
663 664 665 666
 * @generation: generation number for nl80211 dumps.
 *	This number should increase every time the list of stations
 *	changes, i.e. when a station is added or removed, so that
 *	userspace can tell whether it got a consistent snapshot.
667 668 669 670 671
 * @assoc_req_ies: IEs from (Re)Association Request.
 *	This is used only when in AP mode with drivers that do not use
 *	user space MLME/SME implementation. The information is provided for
 *	the cfg80211_new_sta() calls to notify user space of the IEs.
 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
J
Johannes Berg 已提交
672
 * @sta_flags: station flags mask & values
673
 * @beacon_loss_count: Number of times beacon loss event has triggered.
674
 * @t_offset: Time offset of the station relative to this host.
675
 */
676
struct station_info {
677
	u32 filled;
678
	u32 connected_time;
679 680 681
	u32 inactive_time;
	u32 rx_bytes;
	u32 tx_bytes;
682 683 684
	u16 llid;
	u16 plid;
	u8 plink_state;
685
	s8 signal;
686
	s8 signal_avg;
687
	struct rate_info txrate;
688
	struct rate_info rxrate;
689 690
	u32 rx_packets;
	u32 tx_packets;
691 692
	u32 tx_retries;
	u32 tx_failed;
693
	u32 rx_dropped_misc;
694
	struct sta_bss_parameters bss_param;
695
	struct nl80211_sta_flag_update sta_flags;
696 697

	int generation;
698 699 700

	const u8 *assoc_req_ies;
	size_t assoc_req_ies_len;
701

702
	u32 beacon_loss_count;
703
	s64 t_offset;
704

705 706 707 708
	/*
	 * Note: Add a new enum station_info_flags value for each new field and
	 * use it to check which fields are initialized.
	 */
709 710
};

711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730
/**
 * enum monitor_flags - monitor flags
 *
 * Monitor interface configuration flags. Note that these must be the bits
 * according to the nl80211 flags.
 *
 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
 * @MONITOR_FLAG_CONTROL: pass control frames
 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
 */
enum monitor_flags {
	MONITOR_FLAG_FCSFAIL		= 1<<NL80211_MNTR_FLAG_FCSFAIL,
	MONITOR_FLAG_PLCPFAIL		= 1<<NL80211_MNTR_FLAG_PLCPFAIL,
	MONITOR_FLAG_CONTROL		= 1<<NL80211_MNTR_FLAG_CONTROL,
	MONITOR_FLAG_OTHER_BSS		= 1<<NL80211_MNTR_FLAG_OTHER_BSS,
	MONITOR_FLAG_COOK_FRAMES	= 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
};

731 732 733 734 735 736
/**
 * enum mpath_info_flags -  mesh path information flags
 *
 * Used by the driver to indicate which info in &struct mpath_info it has filled
 * in during get_station() or dump_station().
 *
J
Johannes Berg 已提交
737 738 739 740 741 742 743
 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
 * @MPATH_INFO_SN: @sn filled
 * @MPATH_INFO_METRIC: @metric filled
 * @MPATH_INFO_EXPTIME: @exptime filled
 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
 * @MPATH_INFO_FLAGS: @flags filled
744 745 746
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
747
	MPATH_INFO_SN			= BIT(1),
748 749 750 751 752 753 754 755 756 757 758 759 760 761
	MPATH_INFO_METRIC		= BIT(2),
	MPATH_INFO_EXPTIME		= BIT(3),
	MPATH_INFO_DISCOVERY_TIMEOUT	= BIT(4),
	MPATH_INFO_DISCOVERY_RETRIES	= BIT(5),
	MPATH_INFO_FLAGS		= BIT(6),
};

/**
 * struct mpath_info - mesh path information
 *
 * Mesh path information filled by driver for get_mpath() and dump_mpath().
 *
 * @filled: bitfield of flags from &enum mpath_info_flags
 * @frame_qlen: number of queued frames for this destination
762
 * @sn: target sequence number
763 764 765 766 767
 * @metric: metric (cost) of this mesh path
 * @exptime: expiration time for the mesh path from now, in msecs
 * @flags: mesh path flags
 * @discovery_timeout: total mesh path discovery timeout, in msecs
 * @discovery_retries: mesh path discovery retries
768 769 770 771
 * @generation: generation number for nl80211 dumps.
 *	This number should increase every time the list of mesh paths
 *	changes, i.e. when a station is added or removed, so that
 *	userspace can tell whether it got a consistent snapshot.
772 773 774 775
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
776
	u32 sn;
777 778 779 780 781
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;
782 783

	int generation;
784 785
};

786 787 788 789 790 791 792 793 794 795 796
/**
 * struct bss_parameters - BSS parameters
 *
 * Used to change BSS parameters (mainly for AP mode).
 *
 * @use_cts_prot: Whether to use CTS protection
 *	(0 = no, 1 = yes, -1 = do not change)
 * @use_short_preamble: Whether the use of short preambles is allowed
 *	(0 = no, 1 = yes, -1 = do not change)
 * @use_short_slot_time: Whether the use of short slot time is allowed
 *	(0 = no, 1 = yes, -1 = do not change)
797 798 799
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
800
 * @ap_isolate: do not forward packets between connected stations
801 802
 * @ht_opmode: HT Operation mode
 * 	(u16 = opmode, -1 = do not change)
803 804 805 806 807
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
808 809
	u8 *basic_rates;
	u8 basic_rates_len;
810
	int ap_isolate;
811
	int ht_opmode;
812
};
813

814
/**
815 816 817
 * struct mesh_config - 802.11s mesh configuration
 *
 * These parameters can be changed while the mesh is active.
818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865
 *
 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
 *	by the Mesh Peering Open message
 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
 *	used by the Mesh Peering Open message
 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
 *	the mesh peering management to close a mesh peering
 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
 *	mesh interface
 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
 *	be sent to establish a new peer link instance in a mesh
 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
 * @element_ttl: the value of TTL field set at a mesh STA for path selection
 *	elements
 * @auto_open_plinks: whether we should automatically open peer links when we
 *	detect compatible mesh peers
 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
 *	synchronize to for 11s default synchronization method
 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
 *	that an originator mesh STA can send to a particular path target
 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
 * @min_discovery_timeout: the minimum length of time to wait until giving up on
 *	a path discovery in milliseconds
 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
 *	receiving a PREQ shall consider the forwarding information from the
 *	root to be valid. (TU = time unit)
 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
 *	which a mesh STA can send only one action frame containing a PREQ
 *	element
 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
 *	which a mesh STA can send only one Action frame containing a PERR
 *	element
 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
 *	it takes for an HWMP information element to propagate across the mesh
 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
 *	announcements are transmitted
 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
 *	station has access to a broader network beyond the MBSS. (This is
 *	missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
 *	only means that the station will announce others it's a mesh gate, but
 *	not necessarily using the gate announcement protocol. Still keeping the
 *	same nomenclature to be in sync with the spec)
 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
 *	entity (default is TRUE - forwarding entity)
 * @rssi_threshold: the threshold for average signal strength of candidate
 *	station to establish a peer link
 * @ht_opmode: mesh HT protection mode
866 867 868 869 870 871 872
 *
 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
 *	receiving a proactive PREQ shall consider the forwarding information to
 *	the root mesh STA to be valid.
 *
 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
 *	PREQs are transmitted.
873 874 875
 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
 *	during which a mesh STA can send only one Action frame containing
 *	a PREQ element for root path confirmation.
876
 */
877 878 879 880 881
struct mesh_config {
	u16 dot11MeshRetryTimeout;
	u16 dot11MeshConfirmTimeout;
	u16 dot11MeshHoldingTimeout;
	u16 dot11MeshMaxPeerLinks;
882 883 884
	u8 dot11MeshMaxRetries;
	u8 dot11MeshTTL;
	u8 element_ttl;
885
	bool auto_open_plinks;
886
	u32 dot11MeshNbrOffsetMaxNeighbor;
887
	u8 dot11MeshHWMPmaxPREQretries;
888 889 890 891
	u32 path_refresh_time;
	u16 min_discovery_timeout;
	u32 dot11MeshHWMPactivePathTimeout;
	u16 dot11MeshHWMPpreqMinInterval;
892
	u16 dot11MeshHWMPperrMinInterval;
893
	u16 dot11MeshHWMPnetDiameterTraversalTime;
894
	u8 dot11MeshHWMPRootMode;
895
	u16 dot11MeshHWMPRannInterval;
896
	bool dot11MeshGateAnnouncementProtocol;
897
	bool dot11MeshForwarding;
898
	s32 rssi_threshold;
899
	u16 ht_opmode;
900 901
	u32 dot11MeshHWMPactivePathToRootTimeout;
	u16 dot11MeshHWMProotInterval;
902
	u16 dot11MeshHWMPconfirmationInterval;
903 904
};

905 906
/**
 * struct mesh_setup - 802.11s mesh setup configuration
907 908
 * @channel: the channel to start the mesh network on
 * @channel_type: the channel type to use
909 910
 * @mesh_id: the mesh ID
 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
911
 * @sync_method: which synchronization method to use
912 913
 * @path_sel_proto: which path selection protocol to use
 * @path_metric: which metric to use
914 915
 * @ie: vendor information elements (optional)
 * @ie_len: length of vendor information elements
916 917
 * @is_authenticated: this mesh requires authentication
 * @is_secure: this mesh uses security
918
 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
919 920 921 922
 *
 * These parameters are fixed when the mesh is created.
 */
struct mesh_setup {
923 924
	struct ieee80211_channel *channel;
	enum nl80211_channel_type channel_type;
925 926
	const u8 *mesh_id;
	u8 mesh_id_len;
927 928 929
	u8 sync_method;
	u8 path_sel_proto;
	u8 path_metric;
930 931
	const u8 *ie;
	u8 ie_len;
932
	bool is_authenticated;
933
	bool is_secure;
934
	int mcast_rate[IEEE80211_NUM_BANDS];
935 936
};

937 938
/**
 * struct ieee80211_txq_params - TX queue parameters
939
 * @ac: AC identifier
940 941 942 943 944 945 946 947
 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
 *	1..32767]
 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
 *	1..32767]
 * @aifs: Arbitration interframe space [0..255]
 */
struct ieee80211_txq_params {
948
	enum nl80211_ac ac;
949 950 951 952 953 954
	u16 txop;
	u16 cwmin;
	u16 cwmax;
	u8 aifs;
};

955 956 957
/* from net/wireless.h */
struct wiphy;

J
Johannes Berg 已提交
958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979
/**
 * DOC: Scanning and BSS list handling
 *
 * The scanning process itself is fairly simple, but cfg80211 offers quite
 * a bit of helper functionality. To start a scan, the scan operation will
 * be invoked with a scan definition. This scan definition contains the
 * channels to scan, and the SSIDs to send probe requests for (including the
 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
 * probe. Additionally, a scan request may contain extra information elements
 * that should be added to the probe request. The IEs are guaranteed to be
 * well-formed, and will not exceed the maximum length the driver advertised
 * in the wiphy structure.
 *
 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
 * it is responsible for maintaining the BSS list; the driver should not
 * maintain a list itself. For this notification, various functions exist.
 *
 * Since drivers do not maintain a BSS list, there are also a number of
 * functions to search for a BSS and obtain information about it from the
 * BSS structure cfg80211 maintains. The BSS list is also made available
 * to userspace.
 */
980

981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
/**
 * struct cfg80211_ssid - SSID description
 * @ssid: the SSID
 * @ssid_len: length of the ssid
 */
struct cfg80211_ssid {
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len;
};

/**
 * struct cfg80211_scan_request - scan request description
 *
 * @ssids: SSIDs to scan for (active scan only)
 * @n_ssids: number of SSIDs
 * @channels: channels to scan on.
997
 * @n_channels: total number of channels to scan
998 999
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
1000
 * @rates: bitmap of rates to advertise for each band
1001
 * @wiphy: the wiphy this was for
1002
 * @dev: the interface
J
Johannes Berg 已提交
1003
 * @aborted: (internal) scan request was notified as aborted
1004
 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
1005 1006 1007 1008 1009
 */
struct cfg80211_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
1010
	const u8 *ie;
1011
	size_t ie_len;
1012

1013 1014
	u32 rates[IEEE80211_NUM_BANDS];

1015 1016
	/* internal */
	struct wiphy *wiphy;
1017
	struct net_device *dev;
J
Johannes Berg 已提交
1018
	bool aborted;
1019
	bool no_cck;
1020 1021 1022

	/* keep last */
	struct ieee80211_channel *channels[0];
1023 1024
};

1025 1026 1027 1028 1029 1030 1031 1032 1033
/**
 * struct cfg80211_match_set - sets of attributes to match
 *
 * @ssid: SSID to be matched
 */
struct cfg80211_match_set {
	struct cfg80211_ssid ssid;
};

1034 1035 1036 1037 1038 1039
/**
 * struct cfg80211_sched_scan_request - scheduled scan request description
 *
 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
 * @n_ssids: number of SSIDs
 * @n_channels: total number of channels to scan
1040
 * @interval: interval between each scheduled scan cycle
1041 1042
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
1043 1044 1045 1046 1047
 * @match_sets: sets of parameters to be matched for a scan result
 * 	entry to be considered valid and to be passed to the host
 * 	(others are filtered out).
 *	If ommited, all results are passed.
 * @n_match_sets: number of match sets
1048 1049 1050
 * @wiphy: the wiphy this was for
 * @dev: the interface
 * @channels: channels to scan
1051
 * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
1052 1053 1054 1055 1056
 */
struct cfg80211_sched_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
1057
	u32 interval;
1058 1059
	const u8 *ie;
	size_t ie_len;
1060 1061
	struct cfg80211_match_set *match_sets;
	int n_match_sets;
1062
	s32 rssi_thold;
1063 1064 1065 1066 1067 1068 1069 1070 1071

	/* internal */
	struct wiphy *wiphy;
	struct net_device *dev;

	/* keep last */
	struct ieee80211_channel *channels[0];
};

1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090
/**
 * enum cfg80211_signal_type - signal type
 *
 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
 */
enum cfg80211_signal_type {
	CFG80211_SIGNAL_TYPE_NONE,
	CFG80211_SIGNAL_TYPE_MBM,
	CFG80211_SIGNAL_TYPE_UNSPEC,
};

/**
 * struct cfg80211_bss - BSS description
 *
 * This structure describes a BSS (which may also be a mesh network)
 * for use in scan results and similar.
 *
J
Johannes Berg 已提交
1091
 * @channel: channel this BSS is on
1092 1093 1094 1095 1096
 * @bssid: BSSID of the BSS
 * @tsf: timestamp of last received update
 * @beacon_interval: the beacon interval as from the frame
 * @capability: the capability field in host byte order
 * @information_elements: the information elements (Note that there
1097 1098 1099
 *	is no guarantee that these are well-formed!); this is a pointer to
 *	either the beacon_ies or proberesp_ies depending on whether Probe
 *	Response frame has been received
1100
 * @len_information_elements: total length of the information elements
1101 1102 1103 1104
 * @beacon_ies: the information elements from the last Beacon frame
 * @len_beacon_ies: total length of the beacon_ies
 * @proberesp_ies: the information elements from the last Probe Response frame
 * @len_proberesp_ies: total length of the proberesp_ies
J
Johannes Berg 已提交
1105
 * @signal: signal strength value (type depends on the wiphy's signal_type)
J
Johannes Berg 已提交
1106
 * @free_priv: function pointer to free private data
1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117
 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
 */
struct cfg80211_bss {
	struct ieee80211_channel *channel;

	u8 bssid[ETH_ALEN];
	u64 tsf;
	u16 beacon_interval;
	u16 capability;
	u8 *information_elements;
	size_t len_information_elements;
1118 1119 1120 1121
	u8 *beacon_ies;
	size_t len_beacon_ies;
	u8 *proberesp_ies;
	size_t len_proberesp_ies;
1122 1123 1124

	s32 signal;

J
Johannes Berg 已提交
1125
	void (*free_priv)(struct cfg80211_bss *bss);
1126 1127 1128
	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
};

1129 1130 1131 1132 1133 1134 1135 1136 1137
/**
 * ieee80211_bss_get_ie - find IE with given ID
 * @bss: the bss to search
 * @ie: the IE ID
 * Returns %NULL if not found.
 */
const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);


1138 1139 1140 1141 1142
/**
 * struct cfg80211_auth_request - Authentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication.
J
Johannes Berg 已提交
1143 1144
 *
 * @bss: The BSS to authenticate with.
1145 1146 1147
 * @auth_type: Authentication type (algorithm)
 * @ie: Extra IEs to add to Authentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
J
Johannes Berg 已提交
1148 1149 1150
 * @key_len: length of WEP key for shared key authentication
 * @key_idx: index of WEP key for shared key authentication
 * @key: WEP key for shared key authentication
1151 1152
 */
struct cfg80211_auth_request {
J
Johannes Berg 已提交
1153
	struct cfg80211_bss *bss;
1154 1155
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
1156
	enum nl80211_auth_type auth_type;
J
Johannes Berg 已提交
1157 1158
	const u8 *key;
	u8 key_len, key_idx;
1159 1160
};

1161 1162 1163 1164 1165 1166 1167 1168 1169
/**
 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
 *
 * @ASSOC_REQ_DISABLE_HT:  Disable HT (802.11n)
 */
enum cfg80211_assoc_req_flags {
	ASSOC_REQ_DISABLE_HT		= BIT(0),
};

1170 1171 1172 1173 1174
/**
 * struct cfg80211_assoc_request - (Re)Association request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * (re)association.
1175 1176 1177 1178 1179
 * @bss: The BSS to associate with. If the call is successful the driver
 *	is given a reference that it must release, normally via a call to
 *	cfg80211_send_rx_assoc(), or, if association timed out, with a
 *	call to cfg80211_put_bss() (in addition to calling
 *	cfg80211_send_assoc_timeout())
1180 1181
 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
 * @ie_len: Length of ie buffer in octets
1182
 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
S
Samuel Ortiz 已提交
1183
 * @crypto: crypto settings
1184
 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
1185 1186 1187 1188
 * @flags:  See &enum cfg80211_assoc_req_flags
 * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
 *   will be used in ht_capa.  Un-supported values will be ignored.
 * @ht_capa_mask:  The bits of ht_capa which are to be used.
1189 1190
 */
struct cfg80211_assoc_request {
J
Johannes Berg 已提交
1191
	struct cfg80211_bss *bss;
1192
	const u8 *ie, *prev_bssid;
1193
	size_t ie_len;
S
Samuel Ortiz 已提交
1194
	struct cfg80211_crypto_settings crypto;
J
Johannes Berg 已提交
1195
	bool use_mfp;
1196 1197 1198
	u32 flags;
	struct ieee80211_ht_cap ht_capa;
	struct ieee80211_ht_cap ht_capa_mask;
1199 1200 1201 1202 1203 1204 1205 1206
};

/**
 * struct cfg80211_deauth_request - Deauthentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * deauthentication.
 *
1207
 * @bssid: the BSSID of the BSS to deauthenticate from
1208 1209
 * @ie: Extra IEs to add to Deauthentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
J
Johannes Berg 已提交
1210
 * @reason_code: The reason code for the deauthentication
1211 1212
 */
struct cfg80211_deauth_request {
1213
	const u8 *bssid;
1214 1215
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
1216
	u16 reason_code;
1217 1218 1219 1220 1221 1222 1223 1224
};

/**
 * struct cfg80211_disassoc_request - Disassociation request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * disassocation.
 *
J
Johannes Berg 已提交
1225
 * @bss: the BSS to disassociate from
1226 1227
 * @ie: Extra IEs to add to Disassociation frame or %NULL
 * @ie_len: Length of ie buffer in octets
J
Johannes Berg 已提交
1228
 * @reason_code: The reason code for the disassociation
1229 1230
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Disassociation frame is to be transmitted.
1231 1232
 */
struct cfg80211_disassoc_request {
J
Johannes Berg 已提交
1233
	struct cfg80211_bss *bss;
1234 1235
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
1236
	u16 reason_code;
1237
	bool local_state_change;
1238 1239
};

J
Johannes Berg 已提交
1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250
/**
 * struct cfg80211_ibss_params - IBSS parameters
 *
 * This structure defines the IBSS parameters for the join_ibss()
 * method.
 *
 * @ssid: The SSID, will always be non-null.
 * @ssid_len: The length of the SSID, will always be non-zero.
 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
 *	search for IBSSs with a different BSSID.
 * @channel: The channel to use if no IBSS can be found to join.
1251
 * @channel_type: channel type (HT mode)
J
Johannes Berg 已提交
1252 1253 1254 1255
 * @channel_fixed: The channel should be fixed -- do not search for
 *	IBSSs to join on other channels.
 * @ie: information element(s) to include in the beacon
 * @ie_len: length of that
1256
 * @beacon_interval: beacon interval to use
J
Johannes Berg 已提交
1257 1258
 * @privacy: this is a protected network, keys will be configured
 *	after joining
1259 1260 1261 1262
 * @control_port: whether user space controls IEEE 802.1X port, i.e.,
 *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
 *	required to assume that the port is unauthorized until authorized by
 *	user space. Otherwise, port is marked authorized by default.
1263
 * @basic_rates: bitmap of basic rates to use when creating the IBSS
1264
 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
J
Johannes Berg 已提交
1265 1266 1267 1268 1269
 */
struct cfg80211_ibss_params {
	u8 *ssid;
	u8 *bssid;
	struct ieee80211_channel *channel;
1270
	enum nl80211_channel_type channel_type;
J
Johannes Berg 已提交
1271 1272
	u8 *ie;
	u8 ssid_len, ie_len;
1273
	u16 beacon_interval;
1274
	u32 basic_rates;
J
Johannes Berg 已提交
1275
	bool channel_fixed;
J
Johannes Berg 已提交
1276
	bool privacy;
1277
	bool control_port;
1278
	int mcast_rate[IEEE80211_NUM_BANDS];
J
Johannes Berg 已提交
1279 1280
};

S
Samuel Ortiz 已提交
1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
/**
 * struct cfg80211_connect_params - Connection parameters
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication and association.
 *
 * @channel: The channel to use or %NULL if not specified (auto-select based
 *	on scan results)
 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
 *	results)
 * @ssid: SSID
 * @ssid_len: Length of ssid in octets
 * @auth_type: Authentication type (algorithm)
J
Johannes Berg 已提交
1294 1295
 * @ie: IEs for association request
 * @ie_len: Length of assoc_ie in octets
S
Samuel Ortiz 已提交
1296 1297
 * @privacy: indicates whether privacy-enabled APs should be used
 * @crypto: crypto settings
J
Johannes Berg 已提交
1298 1299 1300
 * @key_len: length of WEP key for shared key authentication
 * @key_idx: index of WEP key for shared key authentication
 * @key: WEP key for shared key authentication
1301
 * @flags:  See &enum cfg80211_assoc_req_flags
1302 1303
 * @bg_scan_period:  Background scan period in seconds
 *   or -1 to indicate that default value is to be used.
1304 1305 1306
 * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
 *   will be used in ht_capa.  Un-supported values will be ignored.
 * @ht_capa_mask:  The bits of ht_capa which are to be used.
S
Samuel Ortiz 已提交
1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
 */
struct cfg80211_connect_params {
	struct ieee80211_channel *channel;
	u8 *bssid;
	u8 *ssid;
	size_t ssid_len;
	enum nl80211_auth_type auth_type;
	u8 *ie;
	size_t ie_len;
	bool privacy;
	struct cfg80211_crypto_settings crypto;
J
Johannes Berg 已提交
1318 1319
	const u8 *key;
	u8 key_len, key_idx;
1320
	u32 flags;
1321
	int bg_scan_period;
1322 1323
	struct ieee80211_ht_cap ht_capa;
	struct ieee80211_ht_cap ht_capa_mask;
S
Samuel Ortiz 已提交
1324 1325
};

1326 1327
/**
 * enum wiphy_params_flags - set_wiphy_params bitfield values
J
Johannes Berg 已提交
1328 1329 1330 1331 1332
 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
1333 1334 1335 1336 1337 1338
 */
enum wiphy_params_flags {
	WIPHY_PARAM_RETRY_SHORT		= 1 << 0,
	WIPHY_PARAM_RETRY_LONG		= 1 << 1,
	WIPHY_PARAM_FRAG_THRESHOLD	= 1 << 2,
	WIPHY_PARAM_RTS_THRESHOLD	= 1 << 3,
1339
	WIPHY_PARAM_COVERAGE_CLASS	= 1 << 4,
1340 1341
};

J
Johannes Berg 已提交
1342 1343 1344 1345 1346 1347
/*
 * cfg80211_bitrate_mask - masks for bitrate control
 */
struct cfg80211_bitrate_mask {
	struct {
		u32 legacy;
1348
		u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
J
Johannes Berg 已提交
1349 1350
	} control[IEEE80211_NUM_BANDS];
};
S
Samuel Ortiz 已提交
1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363
/**
 * struct cfg80211_pmksa - PMK Security Association
 *
 * This structure is passed to the set/del_pmksa() method for PMKSA
 * caching.
 *
 * @bssid: The AP's BSSID.
 * @pmkid: The PMK material itself.
 */
struct cfg80211_pmksa {
	u8 *bssid;
	u8 *pmkid;
};
J
Johannes Berg 已提交
1364

J
Johannes Berg 已提交
1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389
/**
 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
 * @mask: bitmask where to match pattern and where to ignore bytes,
 *	one bit per byte, in same format as nl80211
 * @pattern: bytes to match where bitmask is 1
 * @pattern_len: length of pattern (in bytes)
 *
 * Internal note: @mask and @pattern are allocated in one chunk of
 * memory, free @mask only!
 */
struct cfg80211_wowlan_trig_pkt_pattern {
	u8 *mask, *pattern;
	int pattern_len;
};

/**
 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
 *
 * This structure defines the enabled WoWLAN triggers for the device.
 * @any: wake up on any activity -- special trigger if device continues
 *	operating as normal during suspend
 * @disconnect: wake up if getting disconnected
 * @magic_pkt: wake up on receiving magic packet
 * @patterns: wake up on receiving packet matching a pattern
 * @n_patterns: number of patterns
1390 1391 1392 1393
 * @gtk_rekey_failure: wake up on GTK rekey failure
 * @eap_identity_req: wake up on EAP identity request packet
 * @four_way_handshake: wake up on 4-way handshake
 * @rfkill_release: wake up when rfkill is released
J
Johannes Berg 已提交
1394 1395
 */
struct cfg80211_wowlan {
1396 1397 1398
	bool any, disconnect, magic_pkt, gtk_rekey_failure,
	     eap_identity_req, four_way_handshake,
	     rfkill_release;
J
Johannes Berg 已提交
1399 1400 1401 1402
	struct cfg80211_wowlan_trig_pkt_pattern *patterns;
	int n_patterns;
};

1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414
/**
 * struct cfg80211_gtk_rekey_data - rekey data
 * @kek: key encryption key
 * @kck: key confirmation key
 * @replay_ctr: replay counter
 */
struct cfg80211_gtk_rekey_data {
	u8 kek[NL80211_KEK_LEN];
	u8 kck[NL80211_KCK_LEN];
	u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
};

1415 1416 1417 1418 1419 1420 1421 1422 1423
/**
 * struct cfg80211_ops - backend description for wireless configuration
 *
 * This struct is registered by fullmac card drivers and/or wireless stacks
 * in order to handle configuration requests on their interfaces.
 *
 * All callbacks except where otherwise noted should return 0
 * on success or a negative error code.
 *
1424 1425 1426 1427
 * All operations are currently invoked under rtnl for consistency with the
 * wireless extensions but this is subject to reevaluation as soon as this
 * code is used more widely and we have a first user without wext.
 *
J
Johannes Berg 已提交
1428 1429 1430
 * @suspend: wiphy device needs to be suspended. The variable @wow will
 *	be %NULL or contain the enabled Wake-on-Wireless triggers that are
 *	configured for the device.
J
Johannes Berg 已提交
1431
 * @resume: wiphy device needs to be resumed
1432 1433 1434
 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback
 *	to call device_set_wakeup_enable() to enable/disable wakeup from
 *	the device.
J
Johannes Berg 已提交
1435
 *
J
Johannes Berg 已提交
1436
 * @add_virtual_intf: create a new virtual interface with the given name,
1437
 *	must set the struct wireless_dev's iftype. Beware: You must create
1438 1439
 *	the new netdev in the wiphy's network namespace! Returns the netdev,
 *	or an ERR_PTR.
1440 1441
 *
 * @del_virtual_intf: remove the virtual interface determined by ifindex.
1442
 *
J
Johannes Berg 已提交
1443 1444
 * @change_virtual_intf: change type/configuration of virtual interface,
 *	keep the struct wireless_dev's iftype updated.
1445
 *
1446 1447 1448 1449 1450 1451
 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
 *	when adding a group key.
 *
 * @get_key: get information about the key with the given parameters.
 *	@mac_addr will be %NULL when requesting information for a group
 *	key. All pointers given to the @callback function need not be valid
1452 1453
 *	after it returns. This function should return an error if it is
 *	not possible to retrieve the key, -ENOENT if it doesn't exist.
1454 1455
 *
 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
1456
 *	and @key_index, return -ENOENT if the key doesn't exist.
1457 1458
 *
 * @set_default_key: set the default key on an interface
1459
 *
1460 1461
 * @set_default_mgmt_key: set the default management frame key on an interface
 *
1462 1463
 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
 *
J
Johannes Berg 已提交
1464 1465 1466 1467
 * @start_ap: Start acting in AP mode defined by the parameters.
 * @change_beacon: Change the beacon parameters for an access point mode
 *	interface. This should reject the call when AP mode wasn't started.
 * @stop_ap: Stop being an AP, including stopping beaconing.
1468 1469 1470
 *
 * @add_station: Add a new station.
 * @del_station: Remove a station; @mac may be NULL to remove all stations.
1471 1472 1473 1474 1475 1476
 * @change_station: Modify a given station. Note that flags changes are not much
 *	validated in cfg80211, in particular the auth/assoc/authorized flags
 *	might come to the driver in invalid combinations -- make sure to check
 *	them, also against the existing state! Also, supported_rates changes are
 *	not checked in station mode -- drivers need to reject (or ignore) them
 *	for anything but TDLS peers.
J
Johannes Berg 已提交
1477 1478 1479 1480 1481 1482 1483 1484
 * @get_station: get station information for the station identified by @mac
 * @dump_station: dump station callback -- resume dump at index @idx
 *
 * @add_mpath: add a fixed mesh path
 * @del_mpath: delete a given mesh path
 * @change_mpath: change a given mesh path
 * @get_mpath: get a mesh path for the given parameters
 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
1485 1486
 * @join_mesh: join the mesh network with the specified parameters
 * @leave_mesh: leave the current mesh network
1487
 *
1488
 * @get_mesh_config: Get the current mesh configuration
1489
 *
1490
 * @update_mesh_config: Update mesh parameters on a running mesh.
1491 1492 1493
 *	The mask is a bitfield which tells us which parameters to
 *	set, and which to leave alone.
 *
1494
 * @change_bss: Modify parameters for a given BSS.
1495 1496
 *
 * @set_txq_params: Set TX queue parameters
1497
 *
1498 1499 1500 1501 1502 1503 1504 1505
 * @libertas_set_mesh_channel: Only for backward compatibility for libertas,
 *	as it doesn't implement join_mesh and needs to set the channel to
 *	join the mesh instead.
 *
 * @set_monitor_channel: Set the monitor mode channel for the device. If other
 *	interfaces are active this callback should reject the configuration.
 *	If no interfaces are active or the device is down, the channel should
 *	be stored for when a monitor interface becomes active.
1506 1507
 * @set_monitor_enabled: Notify driver that there are only monitor
 *	interfaces running.
1508
 *
1509 1510 1511 1512
 * @scan: Request to do a scan. If returning zero, the scan request is given
 *	the driver, and will be valid until passed to cfg80211_scan_done().
 *	For scan results, call cfg80211_inform_bss(); you can call this outside
 *	the scan/scan_done bracket too.
1513 1514 1515 1516 1517
 *
 * @auth: Request to authenticate with the specified peer
 * @assoc: Request to (re)associate with the specified peer
 * @deauth: Request to deauthenticate from the specified peer
 * @disassoc: Request to disassociate from the specified peer
J
Johannes Berg 已提交
1518
 *
S
Samuel Ortiz 已提交
1519 1520 1521 1522 1523 1524
 * @connect: Connect to the ESS with the specified parameters. When connected,
 *	call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
 *	If the connection fails for some reason, call cfg80211_connect_result()
 *	with the status from the AP.
 * @disconnect: Disconnect from the BSS/ESS.
 *
J
Johannes Berg 已提交
1525 1526 1527 1528
 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
 *	cfg80211_ibss_joined(), also call that function when changing BSSID due
 *	to a merge.
 * @leave_ibss: Leave the IBSS.
1529 1530 1531 1532 1533
 *
 * @set_wiphy_params: Notify that wiphy parameters have changed;
 *	@changed bitfield (see &enum wiphy_params_flags) describes which values
 *	have changed. The actual parameter values are available in
 *	struct wiphy. If returning an error, no value should be changed.
1534
 *
1535 1536
 * @set_tx_power: set the transmit power according to the parameters,
 *	the power passed is in mBm, to get dBm use MBM_TO_DBM().
1537
 * @get_tx_power: store the current TX power into the dbm variable;
J
Johannes Berg 已提交
1538 1539
 *	return 0 if successful
 *
J
Johannes Berg 已提交
1540 1541
 * @set_wds_peer: set the WDS peer for a WDS interface
 *
J
Johannes Berg 已提交
1542 1543
 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
 *	functions to adjust rfkill hw state
1544
 *
1545 1546
 * @dump_survey: get site survey information.
 *
1547 1548 1549 1550 1551 1552 1553 1554
 * @remain_on_channel: Request the driver to remain awake on the specified
 *	channel for the specified duration to complete an off-channel
 *	operation (e.g., public action frame exchange). When the driver is
 *	ready on the requested channel, it must indicate this with an event
 *	notification by calling cfg80211_ready_on_channel().
 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
 *	This allows the operation to be terminated prior to timeout based on
 *	the duration value.
1555 1556 1557
 * @mgmt_tx: Transmit a management frame.
 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
 *	frame on another channel
1558
 *
1559
 * @testmode_cmd: run a test mode command
W
Wey-Yi Guy 已提交
1560 1561 1562 1563 1564 1565
 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
 *	used by the function, but 0 and 1 must not be touched. Additionally,
 *	return error codes other than -ENOBUFS and -ENOENT will terminate the
 *	dump and return to userspace with an error, so be careful. If any data
 *	was passed in from userspace then the data/len arguments will be present
 *	and point to the data contained in %NL80211_ATTR_TESTDATA.
S
Samuel Ortiz 已提交
1566
 *
J
Johannes Berg 已提交
1567 1568
 * @set_bitrate_mask: set the bitrate mask configuration
 *
S
Samuel Ortiz 已提交
1569 1570 1571 1572 1573
 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
 *	devices running firmwares capable of generating the (re) association
 *	RSN IE. It allows for faster roaming between WPA2 BSSIDs.
 * @del_pmksa: Delete a cached PMKID.
 * @flush_pmksa: Flush all cached PMKIDs.
1574 1575
 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
 *	allows the driver to adjust the dynamic ps timeout value.
1576
 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
1577 1578 1579 1580
 * @sched_scan_start: Tell the driver to start a scheduled scan.
 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
 *	scan.  The driver_initiated flag specifies whether the driver
 *	itself has informed that the scan has stopped.
S
Samuel Ortiz 已提交
1581
 *
1582 1583 1584
 * @mgmt_frame_register: Notify driver that a management frame type was
 *	registered. Note that this callback may not sleep, and cannot run
 *	concurrently with itself.
1585 1586 1587 1588 1589 1590 1591
 *
 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
 *	Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
 *	reject TX/RX mask combinations they cannot support by returning -EINVAL
 *	(also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
 *
 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
1592 1593 1594 1595
 *
 * @set_ringparam: Set tx and rx ring sizes.
 *
 * @get_ringparam: Get tx and rx ring current and maximum sizes.
1596 1597 1598
 *
 * @tdls_mgmt: Transmit a TDLS management frame.
 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
J
Johannes Berg 已提交
1599 1600 1601
 *
 * @probe_client: probe an associated client, must return a cookie that it
 *	later passes to cfg80211_probe_status().
1602 1603
 *
 * @set_noack_map: Set the NoAck Map for the TIDs.
1604 1605 1606 1607 1608 1609 1610 1611 1612 1613
 *
 * @get_et_sset_count:  Ethtool API to get string-set count.
 *	See @ethtool_ops.get_sset_count
 *
 * @get_et_stats:  Ethtool API to get a set of u64 stats.
 *	See @ethtool_ops.get_ethtool_stats
 *
 * @get_et_strings:  Ethtool API to get a set of strings to describe stats
 *	and perhaps other supported types of ethtool data-sets.
 *	See @ethtool_ops.get_strings
1614 1615
 */
struct cfg80211_ops {
J
Johannes Berg 已提交
1616
	int	(*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
J
Johannes Berg 已提交
1617
	int	(*resume)(struct wiphy *wiphy);
1618
	void	(*set_wakeup)(struct wiphy *wiphy, bool enabled);
J
Johannes Berg 已提交
1619

1620 1621 1622 1623 1624
	struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,
						char *name,
						enum nl80211_iftype type,
						u32 *flags,
						struct vif_params *params);
1625
	int	(*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
1626 1627
	int	(*change_virtual_intf)(struct wiphy *wiphy,
				       struct net_device *dev,
1628 1629
				       enum nl80211_iftype type, u32 *flags,
				       struct vif_params *params);
1630 1631

	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1632
			   u8 key_index, bool pairwise, const u8 *mac_addr,
1633 1634
			   struct key_params *params);
	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1635 1636
			   u8 key_index, bool pairwise, const u8 *mac_addr,
			   void *cookie,
1637 1638
			   void (*callback)(void *cookie, struct key_params*));
	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1639
			   u8 key_index, bool pairwise, const u8 *mac_addr);
1640 1641
	int	(*set_default_key)(struct wiphy *wiphy,
				   struct net_device *netdev,
1642
				   u8 key_index, bool unicast, bool multicast);
1643 1644 1645
	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
					struct net_device *netdev,
					u8 key_index);
1646

1647 1648 1649 1650 1651
	int	(*start_ap)(struct wiphy *wiphy, struct net_device *dev,
			    struct cfg80211_ap_settings *settings);
	int	(*change_beacon)(struct wiphy *wiphy, struct net_device *dev,
				 struct cfg80211_beacon_data *info);
	int	(*stop_ap)(struct wiphy *wiphy, struct net_device *dev);
1652 1653 1654 1655 1656 1657 1658 1659


	int	(*add_station)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *mac, struct station_parameters *params);
	int	(*del_station)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *mac);
	int	(*change_station)(struct wiphy *wiphy, struct net_device *dev,
				  u8 *mac, struct station_parameters *params);
1660
	int	(*get_station)(struct wiphy *wiphy, struct net_device *dev,
1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676
			       u8 *mac, struct station_info *sinfo);
	int	(*dump_station)(struct wiphy *wiphy, struct net_device *dev,
			       int idx, u8 *mac, struct station_info *sinfo);

	int	(*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst, u8 *next_hop);
	int	(*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst);
	int	(*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
				  u8 *dst, u8 *next_hop);
	int	(*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst, u8 *next_hop,
			       struct mpath_info *pinfo);
	int	(*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       int idx, u8 *dst, u8 *next_hop,
			       struct mpath_info *pinfo);
1677
	int	(*get_mesh_config)(struct wiphy *wiphy,
1678 1679
				struct net_device *dev,
				struct mesh_config *conf);
1680
	int	(*update_mesh_config)(struct wiphy *wiphy,
1681 1682 1683 1684 1685 1686 1687
				      struct net_device *dev, u32 mask,
				      const struct mesh_config *nconf);
	int	(*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
			     const struct mesh_config *conf,
			     const struct mesh_setup *setup);
	int	(*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);

1688 1689
	int	(*change_bss)(struct wiphy *wiphy, struct net_device *dev,
			      struct bss_parameters *params);
1690

1691
	int	(*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
1692
				  struct ieee80211_txq_params *params);
1693

1694 1695 1696 1697 1698 1699 1700
	int	(*libertas_set_mesh_channel)(struct wiphy *wiphy,
					     struct net_device *dev,
					     struct ieee80211_channel *chan);

	int	(*set_monitor_channel)(struct wiphy *wiphy,
				       struct ieee80211_channel *chan,
				       enum nl80211_channel_type channel_type);
1701

1702 1703
	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_scan_request *request);
1704 1705 1706 1707 1708 1709

	int	(*auth)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_auth_request *req);
	int	(*assoc)(struct wiphy *wiphy, struct net_device *dev,
			 struct cfg80211_assoc_request *req);
	int	(*deauth)(struct wiphy *wiphy, struct net_device *dev,
1710
			  struct cfg80211_deauth_request *req);
1711
	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1712
			    struct cfg80211_disassoc_request *req);
J
Johannes Berg 已提交
1713

S
Samuel Ortiz 已提交
1714 1715 1716 1717 1718
	int	(*connect)(struct wiphy *wiphy, struct net_device *dev,
			   struct cfg80211_connect_params *sme);
	int	(*disconnect)(struct wiphy *wiphy, struct net_device *dev,
			      u16 reason_code);

J
Johannes Berg 已提交
1719 1720 1721
	int	(*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
			     struct cfg80211_ibss_params *params);
	int	(*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1722 1723

	int	(*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1724 1725

	int	(*set_tx_power)(struct wiphy *wiphy,
1726
				enum nl80211_tx_power_setting type, int mbm);
1727
	int	(*get_tx_power)(struct wiphy *wiphy, int *dbm);
J
Johannes Berg 已提交
1728

J
Johannes Berg 已提交
1729
	int	(*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
J
Johannes Berg 已提交
1730
				const u8 *addr);
J
Johannes Berg 已提交
1731

J
Johannes Berg 已提交
1732
	void	(*rfkill_poll)(struct wiphy *wiphy);
1733 1734 1735

#ifdef CONFIG_NL80211_TESTMODE
	int	(*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
W
Wey-Yi Guy 已提交
1736 1737 1738
	int	(*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
				 struct netlink_callback *cb,
				 void *data, int len);
1739
#endif
J
Johannes Berg 已提交
1740

J
Johannes Berg 已提交
1741 1742 1743 1744 1745
	int	(*set_bitrate_mask)(struct wiphy *wiphy,
				    struct net_device *dev,
				    const u8 *peer,
				    const struct cfg80211_bitrate_mask *mask);

1746 1747 1748
	int	(*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
			int idx, struct survey_info *info);

S
Samuel Ortiz 已提交
1749 1750 1751 1752 1753 1754
	int	(*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
			     struct cfg80211_pmksa *pmksa);
	int	(*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
			     struct cfg80211_pmksa *pmksa);
	int	(*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);

1755 1756 1757 1758 1759 1760 1761 1762 1763 1764
	int	(*remain_on_channel)(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct ieee80211_channel *chan,
				     enum nl80211_channel_type channel_type,
				     unsigned int duration,
				     u64 *cookie);
	int	(*cancel_remain_on_channel)(struct wiphy *wiphy,
					    struct net_device *dev,
					    u64 cookie);

1765
	int	(*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
1766
			  struct ieee80211_channel *chan, bool offchan,
1767
			  enum nl80211_channel_type channel_type,
1768
			  bool channel_type_valid, unsigned int wait,
1769
			  const u8 *buf, size_t len, bool no_cck,
1770
			  bool dont_wait_for_ack, u64 *cookie);
1771 1772 1773
	int	(*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
				       struct net_device *dev,
				       u64 cookie);
1774

J
Johannes Berg 已提交
1775 1776
	int	(*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
				  bool enabled, int timeout);
1777 1778 1779 1780

	int	(*set_cqm_rssi_config)(struct wiphy *wiphy,
				       struct net_device *dev,
				       s32 rssi_thold, u32 rssi_hyst);
1781 1782 1783 1784

	void	(*mgmt_frame_register)(struct wiphy *wiphy,
				       struct net_device *dev,
				       u16 frame_type, bool reg);
1785 1786 1787

	int	(*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
	int	(*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
1788 1789 1790 1791

	int	(*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
	void	(*get_ringparam)(struct wiphy *wiphy,
				 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1792 1793 1794 1795

	int	(*sched_scan_start)(struct wiphy *wiphy,
				struct net_device *dev,
				struct cfg80211_sched_scan_request *request);
1796
	int	(*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
1797 1798 1799

	int	(*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
				  struct cfg80211_gtk_rekey_data *data);
1800 1801 1802 1803 1804 1805

	int	(*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
			     u8 *peer, u8 action_code,  u8 dialog_token,
			     u16 status_code, const u8 *buf, size_t len);
	int	(*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
			     u8 *peer, enum nl80211_tdls_operation oper);
J
Johannes Berg 已提交
1806 1807 1808

	int	(*probe_client)(struct wiphy *wiphy, struct net_device *dev,
				const u8 *peer, u64 *cookie);
1809

1810 1811 1812 1813
	int	(*set_noack_map)(struct wiphy *wiphy,
				  struct net_device *dev,
				  u16 noack_map);

1814 1815 1816 1817 1818 1819
	int	(*get_et_sset_count)(struct wiphy *wiphy,
				     struct net_device *dev, int sset);
	void	(*get_et_stats)(struct wiphy *wiphy, struct net_device *dev,
				struct ethtool_stats *stats, u64 *data);
	void	(*get_et_strings)(struct wiphy *wiphy, struct net_device *dev,
				  u32 sset, u8 *data);
1820 1821

	void (*set_monitor_enabled)(struct wiphy *wiphy, bool enabled);
1822 1823
};

J
Johannes Berg 已提交
1824 1825 1826 1827 1828 1829
/*
 * wireless hardware and networking interfaces structures
 * and registration/helper functions
 */

/**
J
Johannes Berg 已提交
1830 1831 1832
 * enum wiphy_flags - wiphy capability flags
 *
 * @WIPHY_FLAG_CUSTOM_REGULATORY:  tells us the driver for this device
J
Johannes Berg 已提交
1833 1834 1835 1836
 * 	has its own custom regulatory domain and cannot identify the
 * 	ISO / IEC 3166 alpha2 it belongs to. When this is enabled
 * 	we will disregard the first regulatory hint (when the
 * 	initiator is %REGDOM_SET_BY_CORE).
J
Johannes Berg 已提交
1837 1838
 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
 *	ignore regulatory domain settings until it gets its own regulatory
1839 1840 1841 1842 1843 1844 1845
 *	domain via its regulatory_hint() unless the regulatory hint is
 *	from a country IE. After its gets its own regulatory domain it will
 *	only allow further regulatory domain settings to further enhance
 *	compliance. For example if channel 13 and 14 are disabled by this
 *	regulatory domain no user regulatory domain can enable these channels
 *	at a later time. This can be used for devices which do not have
 *	calibration information guaranteed for frequencies or settings
1846 1847 1848
 *	outside of its regulatory domain. If used in combination with
 *	WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
 *	will be followed.
J
Johannes Berg 已提交
1849 1850 1851
 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
 *	that passive scan flags and beaconing flags may not be lifted by
 *	cfg80211 due to regulatory beacon hints. For more information on beacon
1852
 *	hints read the documenation for regulatory_hint_found_beacon()
J
Johannes Berg 已提交
1853 1854 1855 1856 1857 1858
 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
 *	wiphy at all
 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
 *	by default -- this flag will be set depending on the kernel's default
 *	on wiphy_new(), but can be changed by the driver if it has a good
 *	reason to override the default
1859 1860 1861
 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
 *	on a VLAN interface)
 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
1862 1863 1864
 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
 *	control port protocol ethertype. The device also honours the
 *	control_port_no_encrypt flag.
1865
 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
1866 1867
 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
 *	auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
1868
 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
1869 1870
 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
 *	firmware.
1871
 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
1872 1873 1874 1875 1876 1877
 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
 *	link setup/discovery operations internally. Setup, discovery and
 *	teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
 *	command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
 *	used for asking the driver/firmware to perform a TDLS operation.
J
Johannes Berg 已提交
1878
 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
1879 1880 1881
 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
 *	when there are virtual interfaces in AP mode by calling
 *	cfg80211_report_obss_beacon().
1882 1883
 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
 *	responds to probe-requests in hardware.
1884 1885
 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
J
Johannes Berg 已提交
1886 1887
 */
enum wiphy_flags {
1888 1889 1890 1891 1892 1893 1894 1895
	WIPHY_FLAG_CUSTOM_REGULATORY		= BIT(0),
	WIPHY_FLAG_STRICT_REGULATORY		= BIT(1),
	WIPHY_FLAG_DISABLE_BEACON_HINTS		= BIT(2),
	WIPHY_FLAG_NETNS_OK			= BIT(3),
	WIPHY_FLAG_PS_ON_BY_DEFAULT		= BIT(4),
	WIPHY_FLAG_4ADDR_AP			= BIT(5),
	WIPHY_FLAG_4ADDR_STATION		= BIT(6),
	WIPHY_FLAG_CONTROL_PORT_PROTOCOL	= BIT(7),
1896
	WIPHY_FLAG_IBSS_RSN			= BIT(8),
1897
	WIPHY_FLAG_MESH_AUTH			= BIT(10),
1898
	WIPHY_FLAG_SUPPORTS_SCHED_SCAN		= BIT(11),
1899
	/* use hole at 12 */
1900
	WIPHY_FLAG_SUPPORTS_FW_ROAM		= BIT(13),
1901
	WIPHY_FLAG_AP_UAPSD			= BIT(14),
1902 1903
	WIPHY_FLAG_SUPPORTS_TDLS		= BIT(15),
	WIPHY_FLAG_TDLS_EXTERNAL_SETUP		= BIT(16),
J
Johannes Berg 已提交
1904
	WIPHY_FLAG_HAVE_AP_SME			= BIT(17),
1905
	WIPHY_FLAG_REPORTS_OBSS			= BIT(18),
1906
	WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD	= BIT(19),
1907 1908
	WIPHY_FLAG_OFFCHAN_TX			= BIT(20),
	WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL	= BIT(21),
1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982
};

/**
 * struct ieee80211_iface_limit - limit on certain interface types
 * @max: maximum number of interfaces of these types
 * @types: interface types (bits)
 */
struct ieee80211_iface_limit {
	u16 max;
	u16 types;
};

/**
 * struct ieee80211_iface_combination - possible interface combination
 * @limits: limits for the given interface types
 * @n_limits: number of limitations
 * @num_different_channels: can use up to this many different channels
 * @max_interfaces: maximum number of interfaces in total allowed in this
 *	group
 * @beacon_int_infra_match: In this combination, the beacon intervals
 *	between infrastructure and AP types must match. This is required
 *	only in special cases.
 *
 * These examples can be expressed as follows:
 *
 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
 *
 *  struct ieee80211_iface_limit limits1[] = {
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
 *  };
 *  struct ieee80211_iface_combination combination1 = {
 *	.limits = limits1,
 *	.n_limits = ARRAY_SIZE(limits1),
 *	.max_interfaces = 2,
 *	.beacon_int_infra_match = true,
 *  };
 *
 *
 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
 *
 *  struct ieee80211_iface_limit limits2[] = {
 *	{ .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
 *			     BIT(NL80211_IFTYPE_P2P_GO), },
 *  };
 *  struct ieee80211_iface_combination combination2 = {
 *	.limits = limits2,
 *	.n_limits = ARRAY_SIZE(limits2),
 *	.max_interfaces = 8,
 *	.num_different_channels = 1,
 *  };
 *
 *
 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
 * This allows for an infrastructure connection and three P2P connections.
 *
 *  struct ieee80211_iface_limit limits3[] = {
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
 *	{ .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
 *			     BIT(NL80211_IFTYPE_P2P_CLIENT), },
 *  };
 *  struct ieee80211_iface_combination combination3 = {
 *	.limits = limits3,
 *	.n_limits = ARRAY_SIZE(limits3),
 *	.max_interfaces = 4,
 *	.num_different_channels = 2,
 *  };
 */
struct ieee80211_iface_combination {
	const struct ieee80211_iface_limit *limits;
	u32 num_different_channels;
	u16 max_interfaces;
	u8 n_limits;
	bool beacon_int_infra_match;
J
Johannes Berg 已提交
1983 1984
};

1985 1986 1987 1988
struct mac_address {
	u8 addr[ETH_ALEN];
};

1989 1990 1991 1992
struct ieee80211_txrx_stypes {
	u16 tx, rx;
};

J
Johannes Berg 已提交
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
/**
 * enum wiphy_wowlan_support_flags - WoWLAN support flags
 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
 *	trigger that keeps the device operating as-is and
 *	wakes up the host on any activity, for example a
 *	received packet that passed filtering; note that the
 *	packet should be preserved in that case
 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
 *	(see nl80211.h)
 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
2003 2004 2005 2006 2007
 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
J
Johannes Berg 已提交
2008 2009
 */
enum wiphy_wowlan_support_flags {
2010 2011 2012 2013 2014 2015 2016 2017
	WIPHY_WOWLAN_ANY		= BIT(0),
	WIPHY_WOWLAN_MAGIC_PKT		= BIT(1),
	WIPHY_WOWLAN_DISCONNECT		= BIT(2),
	WIPHY_WOWLAN_SUPPORTS_GTK_REKEY	= BIT(3),
	WIPHY_WOWLAN_GTK_REKEY_FAILURE	= BIT(4),
	WIPHY_WOWLAN_EAP_IDENTITY_REQ	= BIT(5),
	WIPHY_WOWLAN_4WAY_HANDSHAKE	= BIT(6),
	WIPHY_WOWLAN_RFKILL_RELEASE	= BIT(7),
J
Johannes Berg 已提交
2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034
};

/**
 * struct wiphy_wowlan_support - WoWLAN support data
 * @flags: see &enum wiphy_wowlan_support_flags
 * @n_patterns: number of supported wakeup patterns
 *	(see nl80211.h for the pattern definition)
 * @pattern_max_len: maximum length of each pattern
 * @pattern_min_len: minimum length of each pattern
 */
struct wiphy_wowlan_support {
	u32 flags;
	int n_patterns;
	int pattern_max_len;
	int pattern_min_len;
};

J
Johannes Berg 已提交
2035 2036
/**
 * struct wiphy - wireless hardware description
2037 2038 2039
 * @reg_notifier: the driver's regulatory notification callback,
 *	note that if your driver uses wiphy_apply_custom_regulatory()
 *	the reg_notifier's request can be passed as NULL
J
Johannes Berg 已提交
2040 2041 2042 2043 2044 2045 2046
 * @regd: the driver's regulatory domain, if one was requested via
 * 	the regulatory_hint() API. This can be used by the driver
 *	on the reg_notifier() if it chooses to ignore future
 *	regulatory domain changes caused by other drivers.
 * @signal_type: signal type reported in &struct cfg80211_bss.
 * @cipher_suites: supported cipher suites
 * @n_cipher_suites: number of supported cipher suites
2047 2048 2049 2050 2051
 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
 *	-1 = fragmentation disabled, only odd values >= 256 used
 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
J
Johannes Berg 已提交
2052
 * @_net: the network namespace this wiphy currently lives in
2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064
 * @perm_addr: permanent MAC address of this device
 * @addr_mask: If the device supports multiple MAC addresses by masking,
 *	set this to a mask with variable bits set to 1, e.g. if the last
 *	four bits are variable then set it to 00:...:00:0f. The actual
 *	variable bits shall be determined by the interfaces added, with
 *	interfaces not matching the mask being rejected to be brought up.
 * @n_addresses: number of addresses in @addresses.
 * @addresses: If the device has more than one address, set this pointer
 *	to a list of addresses (6 bytes each). The first one will be used
 *	by default for perm_addr. In this case, the mask should be set to
 *	all-zeroes. In this case it is assumed that the device can handle
 *	the same number of arbitrary MAC addresses.
2065 2066
 * @registered: protects ->resume and ->suspend sysfs callbacks against
 *	unregister hardware
J
Johannes Berg 已提交
2067 2068 2069
 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
 *	automatically on wiphy renames
 * @dev: (virtual) struct device for this wiphy
2070
 * @registered: helps synchronize suspend/resume with wiphy unregister
J
Johannes Berg 已提交
2071 2072 2073 2074
 * @wext: wireless extension handlers
 * @priv: driver private data (sized according to wiphy_new() parameter)
 * @interface_modes: bitmask of interfaces types valid for this wiphy,
 *	must be set by driver
2075 2076 2077 2078 2079
 * @iface_combinations: Valid interface combinations array, should not
 *	list single interface types.
 * @n_iface_combinations: number of entries in @iface_combinations array.
 * @software_iftypes: bitmask of software interface types, these are not
 *	subject to any restrictions since they are purely managed in SW.
J
Johannes Berg 已提交
2080
 * @flags: wiphy flags, see &enum wiphy_flags
2081
 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
J
Johannes Berg 已提交
2082 2083 2084 2085
 * @bss_priv_size: each BSS struct has private data allocated with it,
 *	this variable determines its size
 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
 *	any given scan
2086 2087
 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
 *	for in any given scheduled scan
2088 2089 2090
 * @max_match_sets: maximum number of match sets the device can handle
 *	when performing a scheduled scan, 0 if filtering is not
 *	supported.
J
Johannes Berg 已提交
2091 2092 2093
 * @max_scan_ie_len: maximum length of user-controlled IEs device can
 *	add to probe request frames transmitted during a scan, must not
 *	include fixed IEs like supported rates
2094 2095
 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
 *	scans
J
Johannes Berg 已提交
2096 2097 2098 2099 2100 2101 2102
 * @coverage_class: current coverage class
 * @fw_version: firmware version for ethtool reporting
 * @hw_version: hardware version for ethtool reporting
 * @max_num_pmkids: maximum number of PMKIDs supported by device
 * @privid: a pointer that drivers can use to identify if an arbitrary
 *	wiphy is theirs, e.g. in global notifiers
 * @bands: information about bands/channels supported by this device
2103 2104 2105 2106
 *
 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
 *	transmitted through nl80211, points to an array indexed by interface
 *	type
2107
 *
2108 2109 2110 2111 2112 2113 2114
 * @available_antennas_tx: bitmap of antennas which are available to be
 *	configured as TX antennas. Antenna configuration commands will be
 *	rejected unless this or @available_antennas_rx is set.
 *
 * @available_antennas_rx: bitmap of antennas which are available to be
 *	configured as RX antennas. Antenna configuration commands will be
 *	rejected unless this or @available_antennas_tx is set.
2115
 *
2116 2117 2118 2119 2120
 * @probe_resp_offload:
 *	 Bitmap of supported protocols for probe response offloading.
 *	 See &enum nl80211_probe_resp_offload_support_attr. Only valid
 *	 when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
 *
2121 2122
 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
 *	may request, if implemented.
J
Johannes Berg 已提交
2123 2124
 *
 * @wowlan: WoWLAN support information
J
Johannes Berg 已提交
2125 2126
 *
 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
2127 2128
 * @ht_capa_mod_mask:  Specify what ht_cap values can be over-ridden.
 *	If null, then none can be over-ridden.
J
Johannes Berg 已提交
2129 2130 2131 2132
 */
struct wiphy {
	/* assign these fields before you register the wiphy */

2133
	/* permanent MAC address(es) */
J
Johannes Berg 已提交
2134
	u8 perm_addr[ETH_ALEN];
2135 2136 2137
	u8 addr_mask[ETH_ALEN];

	struct mac_address *addresses;
J
Johannes Berg 已提交
2138

2139 2140
	const struct ieee80211_txrx_stypes *mgmt_stypes;

2141 2142 2143 2144
	const struct ieee80211_iface_combination *iface_combinations;
	int n_iface_combinations;
	u16 software_iftypes;

2145 2146
	u16 n_addresses;

J
Johannes Berg 已提交
2147 2148 2149
	/* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
	u16 interface_modes;

2150
	u32 flags, features;
2151

J
Johannes Berg 已提交
2152 2153
	u32 ap_sme_capa;

J
Johannes Berg 已提交
2154 2155 2156 2157
	enum cfg80211_signal_type signal_type;

	int bss_priv_size;
	u8 max_scan_ssids;
2158
	u8 max_sched_scan_ssids;
2159
	u8 max_match_sets;
J
Johannes Berg 已提交
2160
	u16 max_scan_ie_len;
2161
	u16 max_sched_scan_ie_len;
J
Johannes Berg 已提交
2162 2163 2164 2165

	int n_cipher_suites;
	const u32 *cipher_suites;

2166 2167 2168 2169
	u8 retry_short;
	u8 retry_long;
	u32 frag_threshold;
	u32 rts_threshold;
2170
	u8 coverage_class;
2171

2172 2173 2174
	char fw_version[ETHTOOL_BUSINFO_LEN];
	u32 hw_version;

2175
#ifdef CONFIG_PM
J
Johannes Berg 已提交
2176
	struct wiphy_wowlan_support wowlan;
2177
#endif
J
Johannes Berg 已提交
2178

2179 2180
	u16 max_remain_on_channel_duration;

S
Samuel Ortiz 已提交
2181 2182
	u8 max_num_pmkids;

2183 2184
	u32 available_antennas_tx;
	u32 available_antennas_rx;
2185

2186 2187 2188 2189 2190 2191 2192
	/*
	 * Bitmap of supported protocols for probe response offloading
	 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
	 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
	 */
	u32 probe_resp_offload;

J
Johannes Berg 已提交
2193 2194 2195 2196 2197
	/* If multiple wiphys are registered and you're handed e.g.
	 * a regular netdev with assigned ieee80211_ptr, you won't
	 * know whether it points to a wiphy your driver has registered
	 * or not. Assign this to something global to your driver to
	 * help determine whether you own this wiphy or not. */
2198
	const void *privid;
J
Johannes Berg 已提交
2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213

	struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];

	/* Lets us get back the wiphy on the callback */
	int (*reg_notifier)(struct wiphy *wiphy,
			    struct regulatory_request *request);

	/* fields below are read-only, assigned by cfg80211 */

	const struct ieee80211_regdomain *regd;

	/* the item in /sys/class/ieee80211/ points to this,
	 * you need use set_wiphy_dev() (see below) */
	struct device dev;

2214 2215 2216
	/* protects ->resume, ->suspend sysfs callbacks against unregister hw */
	bool registered;

J
Johannes Berg 已提交
2217 2218 2219
	/* dir in debugfs: ieee80211/<wiphyname> */
	struct dentry *debugfsdir;

2220 2221
	const struct ieee80211_ht_cap *ht_capa_mod_mask;

2222 2223 2224 2225 2226
#ifdef CONFIG_NET_NS
	/* the network namespace this phy lives in currently */
	struct net *_net;
#endif

J
Johannes Berg 已提交
2227 2228 2229 2230
#ifdef CONFIG_CFG80211_WEXT
	const struct iw_handler_def *wext;
#endif

J
Johannes Berg 已提交
2231 2232 2233
	char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};

2234 2235
static inline struct net *wiphy_net(struct wiphy *wiphy)
{
E
Eric Dumazet 已提交
2236
	return read_pnet(&wiphy->_net);
2237 2238 2239 2240
}

static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
{
E
Eric Dumazet 已提交
2241
	write_pnet(&wiphy->_net, net);
2242 2243
}

J
Johannes Berg 已提交
2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254
/**
 * wiphy_priv - return priv from wiphy
 *
 * @wiphy: the wiphy whose priv pointer to return
 */
static inline void *wiphy_priv(struct wiphy *wiphy)
{
	BUG_ON(!wiphy);
	return &wiphy->priv;
}

2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265
/**
 * priv_to_wiphy - return the wiphy containing the priv
 *
 * @priv: a pointer previously returned by wiphy_priv
 */
static inline struct wiphy *priv_to_wiphy(void *priv)
{
	BUG_ON(!priv);
	return container_of(priv, struct wiphy, priv);
}

J
Johannes Berg 已提交
2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291
/**
 * set_wiphy_dev - set device pointer for wiphy
 *
 * @wiphy: The wiphy whose device to bind
 * @dev: The device to parent it to
 */
static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
{
	wiphy->dev.parent = dev;
}

/**
 * wiphy_dev - get wiphy dev pointer
 *
 * @wiphy: The wiphy whose device struct to look up
 */
static inline struct device *wiphy_dev(struct wiphy *wiphy)
{
	return wiphy->dev.parent;
}

/**
 * wiphy_name - get wiphy name
 *
 * @wiphy: The wiphy whose name to return
 */
2292
static inline const char *wiphy_name(const struct wiphy *wiphy)
J
Johannes Berg 已提交
2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308
{
	return dev_name(&wiphy->dev);
}

/**
 * wiphy_new - create a new wiphy for use with cfg80211
 *
 * @ops: The configuration operations for this device
 * @sizeof_priv: The size of the private area to allocate
 *
 * Create a new wiphy and associate the given operations with it.
 * @sizeof_priv bytes are allocated for private use.
 *
 * The returned pointer must be assigned to each netdev's
 * ieee80211_ptr for proper operation.
 */
2309
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
J
Johannes Berg 已提交
2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337

/**
 * wiphy_register - register a wiphy with cfg80211
 *
 * @wiphy: The wiphy to register.
 *
 * Returns a non-negative wiphy index or a negative error code.
 */
extern int wiphy_register(struct wiphy *wiphy);

/**
 * wiphy_unregister - deregister a wiphy from cfg80211
 *
 * @wiphy: The wiphy to unregister.
 *
 * After this call, no more requests can be made with this priv
 * pointer, but the call may sleep to wait for an outstanding
 * request that is being handled.
 */
extern void wiphy_unregister(struct wiphy *wiphy);

/**
 * wiphy_free - free wiphy
 *
 * @wiphy: The wiphy to free
 */
extern void wiphy_free(struct wiphy *wiphy);

J
Johannes Berg 已提交
2338
/* internal structs */
2339
struct cfg80211_conn;
J
Johannes Berg 已提交
2340
struct cfg80211_internal_bss;
J
Johannes Berg 已提交
2341
struct cfg80211_cached_keys;
J
Johannes Berg 已提交
2342

J
Johannes Berg 已提交
2343
/**
2344
 * struct wireless_dev - wireless device state
J
Johannes Berg 已提交
2345
 *
2346 2347 2348 2349 2350 2351 2352 2353 2354 2355
 * For netdevs, this structure must be allocated by the driver
 * that uses the ieee80211_ptr field in struct net_device (this
 * is intentional so it can be allocated along with the netdev.)
 * It need not be registered then as netdev registration will
 * be intercepted by cfg80211 to see the new wireless device.
 *
 * For non-netdev uses, it must also be allocated by the driver
 * in response to the cfg80211 callbacks that require it, as
 * there's no netdev registration in that case it may not be
 * allocated outside of callback operations that return it.
J
Johannes Berg 已提交
2356 2357 2358 2359
 *
 * @wiphy: pointer to hardware description
 * @iftype: interface type
 * @list: (private) Used to collect the interfaces
2360 2361 2362
 * @netdev: (private) Used to reference back to the netdev, may be %NULL
 * @identifier: (private) Identifier used in nl80211 to identify this
 *	wireless device if it has no netdev
J
Johannes Berg 已提交
2363
 * @current_bss: (private) Used by the internal configuration code
2364
 * @channel: (private) Used by the internal configuration code to track
2365 2366 2367 2368
 *	the user-set AP, monitor and WDS channel
 * @preset_chan: (private) Used by the internal configuration code to
 *	track the channel to be used for AP later
 * @preset_chantype: (private) the corresponding channel type
J
Johannes Berg 已提交
2369 2370 2371
 * @bssid: (private) Used by the internal configuration code
 * @ssid: (private) Used by the internal configuration code
 * @ssid_len: (private) Used by the internal configuration code
2372 2373
 * @mesh_id_len: (private) Used by the internal configuration code
 * @mesh_id_up_len: (private) Used by the internal configuration code
J
Johannes Berg 已提交
2374
 * @wext: (private) Used by the internal wireless extensions compat code
2375 2376 2377 2378
 * @use_4addr: indicates 4addr mode is used on this interface, must be
 *	set by driver (if supported) on add_interface BEFORE registering the
 *	netdev and may otherwise be used by driver read-only, will be update
 *	by cfg80211 on change_interface
2379 2380
 * @mgmt_registrations: list of registrations for management frames
 * @mgmt_registrations_lock: lock for the list
J
Johannes Berg 已提交
2381 2382
 * @mtx: mutex used to lock data in this struct
 * @cleanup_work: work struct used for cleanup that can't be done directly
2383 2384
 * @beacon_interval: beacon interval used on this device for transmitting
 *	beacons, 0 when not valid
J
Johannes Berg 已提交
2385 2386 2387 2388 2389
 */
struct wireless_dev {
	struct wiphy *wiphy;
	enum nl80211_iftype iftype;

J
Johannes Berg 已提交
2390
	/* the remainder of this struct should be private to cfg80211 */
J
Johannes Berg 已提交
2391 2392 2393
	struct list_head list;
	struct net_device *netdev;

2394 2395
	u32 identifier;

2396 2397
	struct list_head mgmt_registrations;
	spinlock_t mgmt_registrations_lock;
2398

J
Johannes Berg 已提交
2399 2400
	struct mutex mtx;

2401 2402
	struct work_struct cleanup_work;

2403 2404
	bool use_4addr;

S
Samuel Ortiz 已提交
2405
	/* currently used for IBSS and SME - might be rearranged later */
J
Johannes Berg 已提交
2406
	u8 ssid[IEEE80211_MAX_SSID_LEN];
2407
	u8 ssid_len, mesh_id_len, mesh_id_up_len;
S
Samuel Ortiz 已提交
2408 2409
	enum {
		CFG80211_SME_IDLE,
2410
		CFG80211_SME_CONNECTING,
S
Samuel Ortiz 已提交
2411 2412
		CFG80211_SME_CONNECTED,
	} sme_state;
2413
	struct cfg80211_conn *conn;
J
Johannes Berg 已提交
2414
	struct cfg80211_cached_keys *connect_keys;
J
Johannes Berg 已提交
2415

J
Johannes Berg 已提交
2416 2417 2418
	struct list_head event_list;
	spinlock_t event_lock;

J
Johannes Berg 已提交
2419
	struct cfg80211_internal_bss *current_bss; /* associated / joined */
2420 2421
	struct ieee80211_channel *preset_chan;
	enum nl80211_channel_type preset_chantype;
J
Johannes Berg 已提交
2422

2423 2424 2425
	/* for AP and mesh channel tracking */
	struct ieee80211_channel *channel;

2426 2427
	bool ibss_fixed;

K
Kalle Valo 已提交
2428 2429 2430
	bool ps;
	int ps_timeout;

2431 2432
	int beacon_interval;

2433 2434
	u32 ap_unexpected_nlpid;

J
Johannes Berg 已提交
2435
#ifdef CONFIG_CFG80211_WEXT
J
Johannes Berg 已提交
2436
	/* wext data */
2437
	struct {
2438 2439
		struct cfg80211_ibss_params ibss;
		struct cfg80211_connect_params connect;
J
Johannes Berg 已提交
2440
		struct cfg80211_cached_keys *keys;
2441 2442
		u8 *ie;
		size_t ie_len;
2443
		u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
2444
		u8 ssid[IEEE80211_MAX_SSID_LEN];
2445
		s8 default_key, default_mgmt_key;
K
Kalle Valo 已提交
2446
		bool prev_bssid_valid;
2447
	} wext;
J
Johannes Berg 已提交
2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461
#endif
};

/**
 * wdev_priv - return wiphy priv from wireless_dev
 *
 * @wdev: The wireless device whose wiphy's priv pointer to return
 */
static inline void *wdev_priv(struct wireless_dev *wdev)
{
	BUG_ON(!wdev);
	return wiphy_priv(wdev->wiphy);
}

J
Johannes Berg 已提交
2462 2463 2464 2465
/**
 * DOC: Utility functions
 *
 * cfg80211 offers a number of utility functions that can be useful.
J
Johannes Berg 已提交
2466 2467 2468 2469
 */

/**
 * ieee80211_channel_to_frequency - convert channel number to frequency
J
Johannes Berg 已提交
2470
 * @chan: channel number
2471
 * @band: band, necessary due to channel number overlap
J
Johannes Berg 已提交
2472
 */
2473
extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);
J
Johannes Berg 已提交
2474 2475 2476

/**
 * ieee80211_frequency_to_channel - convert frequency to channel number
J
Johannes Berg 已提交
2477
 * @freq: center frequency
J
Johannes Berg 已提交
2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491
 */
extern int ieee80211_frequency_to_channel(int freq);

/*
 * Name indirection necessary because the ieee80211 code also has
 * a function named "ieee80211_get_channel", so if you include
 * cfg80211's header file you get cfg80211's version, if you try
 * to include both header files you'll (rightfully!) get a symbol
 * clash.
 */
extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
							 int freq);
/**
 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
J
Johannes Berg 已提交
2492 2493
 * @wiphy: the struct wiphy to get the channel for
 * @freq: the center frequency of the channel
J
Johannes Berg 已提交
2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523
 */
static inline struct ieee80211_channel *
ieee80211_get_channel(struct wiphy *wiphy, int freq)
{
	return __ieee80211_get_channel(wiphy, freq);
}

/**
 * ieee80211_get_response_rate - get basic rate for a given rate
 *
 * @sband: the band to look for rates in
 * @basic_rates: bitmap of basic rates
 * @bitrate: the bitrate for which to find the basic rate
 *
 * This function returns the basic rate corresponding to a given
 * bitrate, that is the next lower bitrate contained in the basic
 * rate map, which is, for this function, given as a bitmap of
 * indices of rates in the band's bitrate table.
 */
struct ieee80211_rate *
ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
			    u32 basic_rates, int bitrate);

/*
 * Radiotap parsing functions -- for controlled injection support
 *
 * Implemented in net/wireless/radiotap.c
 * Documentation in Documentation/networking/radiotap-headers.txt
 */

J
Johannes Berg 已提交
2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539
struct radiotap_align_size {
	uint8_t align:4, size:4;
};

struct ieee80211_radiotap_namespace {
	const struct radiotap_align_size *align_size;
	int n_bits;
	uint32_t oui;
	uint8_t subns;
};

struct ieee80211_radiotap_vendor_namespaces {
	const struct ieee80211_radiotap_namespace *ns;
	int n_ns;
};

J
Johannes Berg 已提交
2540 2541
/**
 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
J
Johannes Berg 已提交
2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566
 * @this_arg_index: index of current arg, valid after each successful call
 *	to ieee80211_radiotap_iterator_next()
 * @this_arg: pointer to current radiotap arg; it is valid after each
 *	call to ieee80211_radiotap_iterator_next() but also after
 *	ieee80211_radiotap_iterator_init() where it will point to
 *	the beginning of the actual data portion
 * @this_arg_size: length of the current arg, for convenience
 * @current_namespace: pointer to the current namespace definition
 *	(or internally %NULL if the current namespace is unknown)
 * @is_radiotap_ns: indicates whether the current namespace is the default
 *	radiotap namespace or not
 *
 * @_rtheader: pointer to the radiotap header we are walking through
 * @_max_length: length of radiotap header in cpu byte ordering
 * @_arg_index: next argument index
 * @_arg: next argument pointer
 * @_next_bitmap: internal pointer to next present u32
 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
 * @_vns: vendor namespace definitions
 * @_next_ns_data: beginning of the next namespace's data
 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
 *	next bitmap word
 *
 * Describes the radiotap parser state. Fields prefixed with an underscore
 * must not be used by users of the parser, only by the parser internally.
J
Johannes Berg 已提交
2567 2568 2569
 */

struct ieee80211_radiotap_iterator {
J
Johannes Berg 已提交
2570 2571 2572 2573 2574
	struct ieee80211_radiotap_header *_rtheader;
	const struct ieee80211_radiotap_vendor_namespaces *_vns;
	const struct ieee80211_radiotap_namespace *current_namespace;

	unsigned char *_arg, *_next_ns_data;
2575
	__le32 *_next_bitmap;
J
Johannes Berg 已提交
2576 2577

	unsigned char *this_arg;
J
Johannes Berg 已提交
2578
	int this_arg_index;
J
Johannes Berg 已提交
2579
	int this_arg_size;
J
Johannes Berg 已提交
2580

J
Johannes Berg 已提交
2581 2582 2583 2584 2585 2586
	int is_radiotap_ns;

	int _max_length;
	int _arg_index;
	uint32_t _bitmap_shifter;
	int _reset_on_ext;
J
Johannes Berg 已提交
2587 2588 2589
};

extern int ieee80211_radiotap_iterator_init(
J
Johannes Berg 已提交
2590 2591 2592
	struct ieee80211_radiotap_iterator *iterator,
	struct ieee80211_radiotap_header *radiotap_header,
	int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);
J
Johannes Berg 已提交
2593 2594

extern int ieee80211_radiotap_iterator_next(
J
Johannes Berg 已提交
2595 2596
	struct ieee80211_radiotap_iterator *iterator);

J
Johannes Berg 已提交
2597

2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616
extern const unsigned char rfc1042_header[6];
extern const unsigned char bridge_tunnel_header[6];

/**
 * ieee80211_get_hdrlen_from_skb - get header length from data
 *
 * Given an skb with a raw 802.11 header at the data pointer this function
 * returns the 802.11 header length in bytes (not including encryption
 * headers). If the data in the sk_buff is too short to contain a valid 802.11
 * header the function returns 0.
 *
 * @skb: the frame
 */
unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);

/**
 * ieee80211_hdrlen - get header length in bytes from frame control
 * @fc: frame control field in little-endian format
 */
2617
unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);
2618

J
Johannes Berg 已提交
2619 2620 2621 2622 2623 2624 2625 2626
/**
 * DOC: Data path helpers
 *
 * In addition to generic utilities, cfg80211 also offers
 * functions that help implement the data path for devices
 * that do not do the 802.11/802.3 conversion on the device.
 */

2627 2628 2629 2630 2631 2632
/**
 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
 * @skb: the 802.11 data frame
 * @addr: the device MAC address
 * @iftype: the virtual interface type
 */
Z
Zhu Yi 已提交
2633
int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
2634 2635 2636 2637 2638 2639 2640 2641 2642 2643
			   enum nl80211_iftype iftype);

/**
 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
 * @skb: the 802.3 frame
 * @addr: the device MAC address
 * @iftype: the virtual interface type
 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
 * @qos: build 802.11 QoS data frame
 */
Z
Zhu Yi 已提交
2644
int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
2645 2646
			     enum nl80211_iftype iftype, u8 *bssid, bool qos);

Z
Zhu Yi 已提交
2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659
/**
 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
 *
 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
 * 802.3 frames. The @list will be empty if the decode fails. The
 * @skb is consumed after the function returns.
 *
 * @skb: The input IEEE 802.11n A-MSDU frame.
 * @list: The output list of 802.3 frames. It must be allocated and
 *	initialized by by the caller.
 * @addr: The device MAC address.
 * @iftype: The device interface type.
 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
2660
 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
Z
Zhu Yi 已提交
2661 2662 2663
 */
void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
			      const u8 *addr, enum nl80211_iftype iftype,
2664 2665
			      const unsigned int extra_headroom,
			      bool has_80211_header);
Z
Zhu Yi 已提交
2666

2667 2668 2669 2670 2671 2672
/**
 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
 * @skb: the data frame
 */
unsigned int cfg80211_classify8021d(struct sk_buff *skb);

2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688
/**
 * cfg80211_find_ie - find information element in data
 *
 * @eid: element ID
 * @ies: data consisting of IEs
 * @len: length of data
 *
 * This function will return %NULL if the element ID could
 * not be found or if the element is invalid (claims to be
 * longer than the given data), or a pointer to the first byte
 * of the requested element, that is the byte containing the
 * element ID. There are no checks on the element length
 * other than having to fit into the given data.
 */
const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);

2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706
/**
 * cfg80211_find_vendor_ie - find vendor specific information element in data
 *
 * @oui: vendor OUI
 * @oui_type: vendor-specific OUI type
 * @ies: data consisting of IEs
 * @len: length of data
 *
 * This function will return %NULL if the vendor specific element ID
 * could not be found or if the element is invalid (claims to be
 * longer than the given data), or a pointer to the first byte
 * of the requested element, that is the byte containing the
 * element ID. There are no checks on the element length
 * other than having to fit into the given data.
 */
const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
				  const u8 *ies, int len);

J
Johannes Berg 已提交
2707 2708 2709 2710
/**
 * DOC: Regulatory enforcement infrastructure
 *
 * TODO
J
Johannes Berg 已提交
2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757
 */

/**
 * regulatory_hint - driver hint to the wireless core a regulatory domain
 * @wiphy: the wireless device giving the hint (used only for reporting
 *	conflicts)
 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
 * 	should be in. If @rd is set this should be NULL. Note that if you
 * 	set this to NULL you should still set rd->alpha2 to some accepted
 * 	alpha2.
 *
 * Wireless drivers can use this function to hint to the wireless core
 * what it believes should be the current regulatory domain by
 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
 * domain should be in or by providing a completely build regulatory domain.
 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
 * for a regulatory domain structure for the respective country.
 *
 * The wiphy must have been registered to cfg80211 prior to this call.
 * For cfg80211 drivers this means you must first use wiphy_register(),
 * for mac80211 drivers you must first use ieee80211_register_hw().
 *
 * Drivers should check the return value, its possible you can get
 * an -ENOMEM.
 */
extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);

/**
 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
 * @wiphy: the wireless device we want to process the regulatory domain on
 * @regd: the custom regulatory domain to use for this wiphy
 *
 * Drivers can sometimes have custom regulatory domains which do not apply
 * to a specific country. Drivers can use this to apply such custom regulatory
 * domains. This routine must be called prior to wiphy registration. The
 * custom regulatory domain will be trusted completely and as such previous
 * default channel settings will be disregarded. If no rule is found for a
 * channel on the regulatory domain the channel will be disabled.
 */
extern void wiphy_apply_custom_regulatory(
	struct wiphy *wiphy,
	const struct ieee80211_regdomain *regd);

/**
 * freq_reg_info - get regulatory information for the given frequency
 * @wiphy: the wiphy for which we want to process this rule for
 * @center_freq: Frequency in KHz for which we want regulatory information for
2758 2759 2760 2761
 * @desired_bw_khz: the desired max bandwidth you want to use per
 *	channel. Note that this is still 20 MHz if you want to use HT40
 *	as HT40 makes use of two channels for its 40 MHz width bandwidth.
 *	If set to 0 we'll assume you want the standard 20 MHz.
J
Johannes Berg 已提交
2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775
 * @reg_rule: the regulatory rule which we have for this frequency
 *
 * Use this function to get the regulatory rule for a specific frequency on
 * a given wireless device. If the device has a specific regulatory domain
 * it wants to follow we respect that unless a country IE has been received
 * and processed already.
 *
 * Returns 0 if it was able to find a valid regulatory rule which does
 * apply to the given center_freq otherwise it returns non-zero. It will
 * also return -ERANGE if we determine the given center_freq does not even have
 * a regulatory rule for a frequency range in the center_freq's band. See
 * freq_in_rule_band() for our current definition of a band -- this is purely
 * subjective and right now its 802.11 specific.
 */
2776 2777 2778
extern int freq_reg_info(struct wiphy *wiphy,
			 u32 center_freq,
			 u32 desired_bw_khz,
J
Johannes Berg 已提交
2779 2780 2781 2782 2783 2784 2785
			 const struct ieee80211_reg_rule **reg_rule);

/*
 * callbacks for asynchronous cfg80211 methods, notification
 * functions and BSS handling helpers
 */

2786 2787 2788 2789 2790 2791 2792 2793 2794
/**
 * cfg80211_scan_done - notify that scan finished
 *
 * @request: the corresponding scan request
 * @aborted: set to true if the scan was aborted for any reason,
 *	userspace will be notified of that
 */
void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);

2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812
/**
 * cfg80211_sched_scan_results - notify that new scan results are available
 *
 * @wiphy: the wiphy which got scheduled scan results
 */
void cfg80211_sched_scan_results(struct wiphy *wiphy);

/**
 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
 *
 * @wiphy: the wiphy on which the scheduled scan stopped
 *
 * The driver can call this function to inform cfg80211 that the
 * scheduled scan had to be stopped, for whatever reason.  The driver
 * is then called back via the sched_scan_stop operation when done.
 */
void cfg80211_sched_scan_stopped(struct wiphy *wiphy);

2813
/**
J
Johannes Berg 已提交
2814
 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
2815 2816
 *
 * @wiphy: the wiphy reporting the BSS
J
Johannes Berg 已提交
2817 2818 2819
 * @channel: The channel the frame was received on
 * @mgmt: the management frame (probe response or beacon)
 * @len: length of the management frame
J
Johannes Berg 已提交
2820
 * @signal: the signal strength, type depends on the wiphy's signal_type
2821 2822 2823 2824
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
2825 2826
 *
 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
2827
 */
2828
struct cfg80211_bss * __must_check
2829 2830 2831
cfg80211_inform_bss_frame(struct wiphy *wiphy,
			  struct ieee80211_channel *channel,
			  struct ieee80211_mgmt *mgmt, size_t len,
J
Johannes Berg 已提交
2832
			  s32 signal, gfp_t gfp);
2833

J
Johannes Berg 已提交
2834 2835 2836 2837 2838 2839
/**
 * cfg80211_inform_bss - inform cfg80211 of a new BSS
 *
 * @wiphy: the wiphy reporting the BSS
 * @channel: The channel the frame was received on
 * @bssid: the BSSID of the BSS
2840
 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
J
Johannes Berg 已提交
2841 2842 2843 2844 2845 2846 2847 2848 2849
 * @capability: the capability field sent by the peer
 * @beacon_interval: the beacon interval announced by the peer
 * @ie: additional IEs sent by the peer
 * @ielen: length of the additional IEs
 * @signal: the signal strength, type depends on the wiphy's signal_type
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
2850 2851
 *
 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
J
Johannes Berg 已提交
2852
 */
2853
struct cfg80211_bss * __must_check
2854 2855
cfg80211_inform_bss(struct wiphy *wiphy,
		    struct ieee80211_channel *channel,
2856 2857
		    const u8 *bssid, u64 tsf, u16 capability,
		    u16 beacon_interval, const u8 *ie, size_t ielen,
2858 2859
		    s32 signal, gfp_t gfp);

2860 2861 2862
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
				      struct ieee80211_channel *channel,
				      const u8 *bssid,
2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873
				      const u8 *ssid, size_t ssid_len,
				      u16 capa_mask, u16 capa_val);
static inline struct cfg80211_bss *
cfg80211_get_ibss(struct wiphy *wiphy,
		  struct ieee80211_channel *channel,
		  const u8 *ssid, size_t ssid_len)
{
	return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
				WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
}

2874 2875 2876 2877
struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
				       struct ieee80211_channel *channel,
				       const u8 *meshid, size_t meshidlen,
				       const u8 *meshcfg);
2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891
/**
 * cfg80211_ref_bss - reference BSS struct
 * @bss: the BSS struct to reference
 *
 * Increments the refcount of the given BSS struct.
 */
void cfg80211_ref_bss(struct cfg80211_bss *bss);

/**
 * cfg80211_put_bss - unref BSS struct
 * @bss: the BSS struct
 *
 * Decrements the refcount of the given BSS struct.
 */
2892
void cfg80211_put_bss(struct cfg80211_bss *bss);
J
Johannes Berg 已提交
2893

2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904
/**
 * cfg80211_unlink_bss - unlink BSS from internal data structures
 * @wiphy: the wiphy
 * @bss: the bss to remove
 *
 * This function removes the given BSS from the internal data structures
 * thereby making it no longer show up in scan results etc. Use this
 * function when you detect a BSS is gone. Normally BSSes will also time
 * out, so it is not necessary to use this function at all.
 */
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
J
Johannes Berg 已提交
2905

2906 2907 2908 2909 2910 2911 2912
/**
 * cfg80211_send_rx_auth - notification of processed authentication
 * @dev: network device
 * @buf: authentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever an authentication has been processed in
2913 2914
 * station mode. The driver is required to call either this function or
 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2915
 * call. This function may sleep.
2916
 */
2917
void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2918

2919 2920 2921 2922
/**
 * cfg80211_send_auth_timeout - notification of timed out authentication
 * @dev: network device
 * @addr: The MAC address of the device with which the authentication timed out
2923 2924
 *
 * This function may sleep.
2925
 */
2926
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2927

2928 2929 2930
/**
 * cfg80211_send_rx_assoc - notification of processed association
 * @dev: network device
2931 2932
 * @bss: the BSS struct association was requested for, the struct reference
 *	is owned by cfg80211 after this call
2933 2934 2935 2936
 * @buf: (re)association response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a (re)association response has been
2937 2938
 * processed in station mode. The driver is required to call either this
 * function or cfg80211_send_assoc_timeout() to indicate the result of
2939
 * cfg80211_ops::assoc() call. This function may sleep.
2940
 */
2941 2942
void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
			    const u8 *buf, size_t len);
2943

2944 2945 2946 2947
/**
 * cfg80211_send_assoc_timeout - notification of timed out association
 * @dev: network device
 * @addr: The MAC address of the device with which the association timed out
2948 2949
 *
 * This function may sleep.
2950
 */
2951
void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2952

2953
/**
2954
 * cfg80211_send_deauth - notification of processed deauthentication
2955 2956 2957 2958 2959
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever deauthentication has been processed in
2960
 * station mode. This includes both received deauthentication frames and
2961
 * locally generated ones. This function may sleep.
2962
 */
2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973
void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);

/**
 * __cfg80211_send_deauth - notification of processed deauthentication
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
 */
void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
2974 2975

/**
2976
 * cfg80211_send_disassoc - notification of processed disassociation
2977 2978 2979 2980 2981
 * @dev: network device
 * @buf: disassociation response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever disassociation has been processed in
2982
 * station mode. This includes both received disassociation frames and locally
2983
 * generated ones. This function may sleep.
2984
 */
2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996
void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);

/**
 * __cfg80211_send_disassoc - notification of processed disassociation
 * @dev: network device
 * @buf: disassociation response frame (header + body)
 * @len: length of the frame data
 *
 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
 */
void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
	size_t len);
2997

2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
/**
 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a received Deauthentication frame has been
 * dropped in station mode because of MFP being used but the Deauthentication
 * frame was not protected. This function may sleep.
 */
void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
				 size_t len);

/**
 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
 * @dev: network device
 * @buf: disassociation frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a received Disassociation frame has been
 * dropped in station mode because of MFP being used but the Disassociation
 * frame was not protected. This function may sleep.
 */
void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
				   size_t len);

3024 3025 3026 3027 3028
/**
 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
 * @dev: network device
 * @addr: The source MAC address of the frame
 * @key_type: The key type that the received frame used
3029
 * @key_id: Key identifier (0..3). Can be -1 if missing.
3030
 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
3031
 * @gfp: allocation flags
3032 3033 3034 3035 3036 3037 3038
 *
 * This function is called whenever the local MAC detects a MIC failure in a
 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
 * primitive.
 */
void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
				  enum nl80211_key_type key_type, int key_id,
3039
				  const u8 *tsc, gfp_t gfp);
3040

J
Johannes Berg 已提交
3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056
/**
 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
 *
 * @dev: network device
 * @bssid: the BSSID of the IBSS joined
 * @gfp: allocation flags
 *
 * This function notifies cfg80211 that the device joined an IBSS or
 * switched to a different BSSID. Before this function can be called,
 * either a beacon has to have been received from the IBSS, or one of
 * the cfg80211_inform_bss{,_frame} functions must have been called
 * with the locally generated beacon -- this guarantees that there is
 * always a scan result for this IBSS. cfg80211 will handle the rest.
 */
void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);

3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072
/**
 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
 *
 * @dev: network device
 * @macaddr: the MAC address of the new candidate
 * @ie: information elements advertised by the peer candidate
 * @ie_len: lenght of the information elements buffer
 * @gfp: allocation flags
 *
 * This function notifies cfg80211 that the mesh peer candidate has been
 * detected, most likely via a beacon or, less likely, via a probe response.
 * cfg80211 then sends a notification to userspace.
 */
void cfg80211_notify_new_peer_candidate(struct net_device *dev,
		const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);

J
Johannes Berg 已提交
3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086
/**
 * DOC: RFkill integration
 *
 * RFkill integration in cfg80211 is almost invisible to drivers,
 * as cfg80211 automatically registers an rfkill instance for each
 * wireless device it knows about. Soft kill is also translated
 * into disconnecting and turning all interfaces off, drivers are
 * expected to turn off the device when all interfaces are down.
 *
 * However, devices may have a hard RFkill line, in which case they
 * also need to interact with the rfkill subsystem, via cfg80211.
 * They can do this with a few helper functions documented here.
 */

J
Johannes Berg 已提交
3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105
/**
 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
 * @wiphy: the wiphy
 * @blocked: block status
 */
void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);

/**
 * wiphy_rfkill_start_polling - start polling rfkill
 * @wiphy: the wiphy
 */
void wiphy_rfkill_start_polling(struct wiphy *wiphy);

/**
 * wiphy_rfkill_stop_polling - stop polling rfkill
 * @wiphy: the wiphy
 */
void wiphy_rfkill_stop_polling(struct wiphy *wiphy);

3106
#ifdef CONFIG_NL80211_TESTMODE
J
Johannes Berg 已提交
3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117
/**
 * DOC: Test mode
 *
 * Test mode is a set of utility functions to allow drivers to
 * interact with driver-specific tools to aid, for instance,
 * factory programming.
 *
 * This chapter describes how drivers interact with it, for more
 * information see the nl80211 book's chapter on it.
 */

3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189
/**
 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
 * @wiphy: the wiphy
 * @approxlen: an upper bound of the length of the data that will
 *	be put into the skb
 *
 * This function allocates and pre-fills an skb for a reply to
 * the testmode command. Since it is intended for a reply, calling
 * it outside of the @testmode_cmd operation is invalid.
 *
 * The returned skb (or %NULL if any errors happen) is pre-filled
 * with the wiphy index and set up in a way that any data that is
 * put into the skb (with skb_put(), nla_put() or similar) will end
 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
 * needs to be done with the skb is adding data for the corresponding
 * userspace tool which can then read that data out of the testdata
 * attribute. You must not modify the skb in any other way.
 *
 * When done, call cfg80211_testmode_reply() with the skb and return
 * its error code as the result of the @testmode_cmd operation.
 */
struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
						  int approxlen);

/**
 * cfg80211_testmode_reply - send the reply skb
 * @skb: The skb, must have been allocated with
 *	cfg80211_testmode_alloc_reply_skb()
 *
 * Returns an error code or 0 on success, since calling this
 * function will usually be the last thing before returning
 * from the @testmode_cmd you should return the error code.
 * Note that this function consumes the skb regardless of the
 * return value.
 */
int cfg80211_testmode_reply(struct sk_buff *skb);

/**
 * cfg80211_testmode_alloc_event_skb - allocate testmode event
 * @wiphy: the wiphy
 * @approxlen: an upper bound of the length of the data that will
 *	be put into the skb
 * @gfp: allocation flags
 *
 * This function allocates and pre-fills an skb for an event on the
 * testmode multicast group.
 *
 * The returned skb (or %NULL if any errors happen) is set up in the
 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
 * for an event. As there, you should simply add data to it that will
 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
 * not modify the skb in any other way.
 *
 * When done filling the skb, call cfg80211_testmode_event() with the
 * skb to send the event.
 */
struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
						  int approxlen, gfp_t gfp);

/**
 * cfg80211_testmode_event - send the event
 * @skb: The skb, must have been allocated with
 *	cfg80211_testmode_alloc_event_skb()
 * @gfp: allocation flags
 *
 * This function sends the given @skb, which must have been allocated
 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
 * consumes it.
 */
void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);

#define CFG80211_TESTMODE_CMD(cmd)	.testmode_cmd = (cmd),
W
Wey-Yi Guy 已提交
3190
#define CFG80211_TESTMODE_DUMP(cmd)	.testmode_dump = (cmd),
3191 3192
#else
#define CFG80211_TESTMODE_CMD(cmd)
W
Wey-Yi Guy 已提交
3193
#define CFG80211_TESTMODE_DUMP(cmd)
3194 3195
#endif

S
Samuel Ortiz 已提交
3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221
/**
 * cfg80211_connect_result - notify cfg80211 of connection result
 *
 * @dev: network device
 * @bssid: the BSSID of the AP
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @status: status code, 0 for successful connection, use
 *	%WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
 *	the real status code for failures.
 * @gfp: allocation flags
 *
 * It should be called by the underlying driver whenever connect() has
 * succeeded.
 */
void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
			     const u8 *req_ie, size_t req_ie_len,
			     const u8 *resp_ie, size_t resp_ie_len,
			     u16 status, gfp_t gfp);

/**
 * cfg80211_roamed - notify cfg80211 of roaming
 *
 * @dev: network device
3222
 * @channel: the channel of the new AP
S
Samuel Ortiz 已提交
3223 3224 3225 3226 3227 3228 3229 3230 3231 3232
 * @bssid: the BSSID of the new AP
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @gfp: allocation flags
 *
 * It should be called by the underlying driver whenever it roamed
 * from one AP to another while connected.
 */
3233 3234 3235
void cfg80211_roamed(struct net_device *dev,
		     struct ieee80211_channel *channel,
		     const u8 *bssid,
S
Samuel Ortiz 已提交
3236 3237 3238
		     const u8 *req_ie, size_t req_ie_len,
		     const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);

3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264
/**
 * cfg80211_roamed_bss - notify cfg80211 of roaming
 *
 * @dev: network device
 * @bss: entry of bss to which STA got roamed
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @gfp: allocation flags
 *
 * This is just a wrapper to notify cfg80211 of roaming event with driver
 * passing bss to avoid a race in timeout of the bss entry. It should be
 * called by the underlying driver whenever it roamed from one AP to another
 * while connected. Drivers which have roaming implemented in firmware
 * may use this function to avoid a race in bss entry timeout where the bss
 * entry of the new AP is seen in the driver, but gets timed out by the time
 * it is accessed in __cfg80211_roamed() due to delay in scheduling
 * rdev->event_work. In case of any failures, the reference is released
 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
 * it will be released while diconneting from the current bss.
 */
void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
			 const u8 *req_ie, size_t req_ie_len,
			 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);

S
Samuel Ortiz 已提交
3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279
/**
 * cfg80211_disconnected - notify cfg80211 that connection was dropped
 *
 * @dev: network device
 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
 * @ie_len: length of IEs
 * @reason: reason code for the disconnection, set it to 0 if unknown
 * @gfp: allocation flags
 *
 * After it calls this function, the driver should enter an idle state
 * and not try to connect to any AP any more.
 */
void cfg80211_disconnected(struct net_device *dev, u16 reason,
			   u8 *ie, size_t ie_len, gfp_t gfp);

3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307
/**
 * cfg80211_ready_on_channel - notification of remain_on_channel start
 * @dev: network device
 * @cookie: the request cookie
 * @chan: The current channel (from remain_on_channel request)
 * @channel_type: Channel type
 * @duration: Duration in milliseconds that the driver intents to remain on the
 *	channel
 * @gfp: allocation flags
 */
void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
			       struct ieee80211_channel *chan,
			       enum nl80211_channel_type channel_type,
			       unsigned int duration, gfp_t gfp);

/**
 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
 * @dev: network device
 * @cookie: the request cookie
 * @chan: The current channel (from remain_on_channel request)
 * @channel_type: Channel type
 * @gfp: allocation flags
 */
void cfg80211_remain_on_channel_expired(struct net_device *dev,
					u64 cookie,
					struct ieee80211_channel *chan,
					enum nl80211_channel_type channel_type,
					gfp_t gfp);
S
Samuel Ortiz 已提交
3308

3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320

/**
 * cfg80211_new_sta - notify userspace about station
 *
 * @dev: the netdev
 * @mac_addr: the station's address
 * @sinfo: the station information
 * @gfp: allocation flags
 */
void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
		      struct station_info *sinfo, gfp_t gfp);

3321 3322 3323 3324 3325 3326 3327 3328 3329
/**
 * cfg80211_del_sta - notify userspace about deletion of a station
 *
 * @dev: the netdev
 * @mac_addr: the station's address
 * @gfp: allocation flags
 */
void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);

3330
/**
3331
 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
3332 3333
 * @dev: network device
 * @freq: Frequency on which the frame was received in MHz
3334
 * @sig_dbm: signal strength in mBm, or 0 if unknown
3335
 * @buf: Management frame (header + body)
3336 3337
 * @len: length of the frame data
 * @gfp: context flags
3338 3339 3340 3341 3342
 *
 * Returns %true if a user space application has registered for this frame.
 * For action frames, that makes it responsible for rejecting unrecognized
 * action frames; %false otherwise, in which case for action frames the
 * driver is responsible for rejecting the frame.
3343 3344 3345 3346
 *
 * This function is called whenever an Action frame is received for a station
 * mode interface, but is not processed in kernel.
 */
3347 3348
bool cfg80211_rx_mgmt(struct net_device *dev, int freq, int sig_dbm,
		      const u8 *buf, size_t len, gfp_t gfp);
3349 3350

/**
3351
 * cfg80211_mgmt_tx_status - notification of TX status for management frame
3352
 * @dev: network device
3353 3354
 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
 * @buf: Management frame (header + body)
3355 3356 3357 3358
 * @len: length of the frame data
 * @ack: Whether frame was acknowledged
 * @gfp: context flags
 *
3359 3360
 * This function is called whenever a management frame was requested to be
 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
3361 3362
 * transmission attempt.
 */
3363 3364
void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie,
			     const u8 *buf, size_t len, bool ack, gfp_t gfp);
3365

3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379

/**
 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
 * @dev: network device
 * @rssi_event: the triggered RSSI event
 * @gfp: context flags
 *
 * This function is called when a configured connection quality monitoring
 * rssi threshold reached event occurs.
 */
void cfg80211_cqm_rssi_notify(struct net_device *dev,
			      enum nl80211_cqm_rssi_threshold_event rssi_event,
			      gfp_t gfp);

3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391
/**
 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
 * @dev: network device
 * @peer: peer's MAC address
 * @num_packets: how many packets were lost -- should be a fixed threshold
 *	but probably no less than maybe 50, or maybe a throughput dependent
 *	threshold (to account for temporary interference)
 * @gfp: context flags
 */
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
				 const u8 *peer, u32 num_packets, gfp_t gfp);

3392 3393 3394 3395 3396
/**
 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
 * @dev: network device
 * @bssid: BSSID of AP (to avoid races)
 * @replay_ctr: new replay counter
J
Johannes Berg 已提交
3397
 * @gfp: allocation flags
3398 3399 3400 3401
 */
void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
			       const u8 *replay_ctr, gfp_t gfp);

3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412
/**
 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
 * @dev: network device
 * @index: candidate index (the smaller the index, the higher the priority)
 * @bssid: BSSID of AP
 * @preauth: Whether AP advertises support for RSN pre-authentication
 * @gfp: allocation flags
 */
void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
				     const u8 *bssid, bool preauth, gfp_t gfp);

3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427
/**
 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
 * @dev: The device the frame matched to
 * @addr: the transmitter address
 * @gfp: context flags
 *
 * This function is used in AP mode (only!) to inform userspace that
 * a spurious class 3 frame was received, to be able to deauth the
 * sender.
 * Returns %true if the frame was passed to userspace (or this failed
 * for a reason other than not having a subscription.)
 */
bool cfg80211_rx_spurious_frame(struct net_device *dev,
				const u8 *addr, gfp_t gfp);

3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443
/**
 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
 * @dev: The device the frame matched to
 * @addr: the transmitter address
 * @gfp: context flags
 *
 * This function is used in AP mode (only!) to inform userspace that
 * an associated station sent a 4addr frame but that wasn't expected.
 * It is allowed and desirable to send this event only once for each
 * station to avoid event flooding.
 * Returns %true if the frame was passed to userspace (or this failed
 * for a reason other than not having a subscription.)
 */
bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
					const u8 *addr, gfp_t gfp);

J
Johannes Berg 已提交
3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454
/**
 * cfg80211_probe_status - notify userspace about probe status
 * @dev: the device the probe was sent on
 * @addr: the address of the peer
 * @cookie: the cookie filled in @probe_client previously
 * @acked: indicates whether probe was acked or not
 * @gfp: allocation flags
 */
void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
			   u64 cookie, bool acked, gfp_t gfp);

3455 3456 3457 3458 3459 3460
/**
 * cfg80211_report_obss_beacon - report beacon from other APs
 * @wiphy: The wiphy that received the beacon
 * @frame: the frame
 * @len: length of the frame
 * @freq: frequency the frame was received on
3461
 * @sig_dbm: signal strength in mBm, or 0 if unknown
3462 3463 3464 3465 3466 3467 3468 3469
 * @gfp: allocation flags
 *
 * Use this function to report to userspace when a beacon was
 * received. It is not useful to call this when there is no
 * netdev that is in AP/GO mode.
 */
void cfg80211_report_obss_beacon(struct wiphy *wiphy,
				 const u8 *frame, size_t len,
3470
				 int freq, int sig_dbm, gfp_t gfp);
3471

3472
/**
3473 3474 3475 3476
 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
 * @wiphy: the wiphy
 * @chan: main channel
 * @channel_type: HT mode
3477 3478 3479
 *
 * This function returns true if there is no secondary channel or the secondary
 * channel can be used for beaconing (i.e. is not a radar channel etc.)
3480
 */
3481 3482 3483
bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
				  struct ieee80211_channel *chan,
				  enum nl80211_channel_type channel_type);
3484

3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495
/*
 * cfg80211_ch_switch_notify - update wdev channel and notify userspace
 * @dev: the device which switched channels
 * @freq: new channel frequency (in MHz)
 * @type: channel type
 *
 * Acquires wdev_lock, so must only be called from sleepable driver context!
 */
void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
			       enum nl80211_channel_type type);

3496 3497 3498 3499 3500 3501
/*
 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
 * @rate: given rate_info to calculate bitrate from
 *
 * return 0 if MCS index >= 32
 */
3502
u32 cfg80211_calculate_bitrate(struct rate_info *rate);
3503

3504 3505 3506 3507 3508
/* Logging, debugging and troubleshooting/diagnostic helpers. */

/* wiphy_printk helpers, similar to dev_printk */

#define wiphy_printk(level, wiphy, format, args...)		\
3509
	dev_printk(level, &(wiphy)->dev, format, ##args)
3510
#define wiphy_emerg(wiphy, format, args...)			\
3511
	dev_emerg(&(wiphy)->dev, format, ##args)
3512
#define wiphy_alert(wiphy, format, args...)			\
3513
	dev_alert(&(wiphy)->dev, format, ##args)
3514
#define wiphy_crit(wiphy, format, args...)			\
3515
	dev_crit(&(wiphy)->dev, format, ##args)
3516
#define wiphy_err(wiphy, format, args...)			\
3517
	dev_err(&(wiphy)->dev, format, ##args)
3518
#define wiphy_warn(wiphy, format, args...)			\
3519
	dev_warn(&(wiphy)->dev, format, ##args)
3520
#define wiphy_notice(wiphy, format, args...)			\
3521
	dev_notice(&(wiphy)->dev, format, ##args)
3522
#define wiphy_info(wiphy, format, args...)			\
3523
	dev_info(&(wiphy)->dev, format, ##args)
3524

3525
#define wiphy_debug(wiphy, format, args...)			\
3526
	wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
3527

3528
#define wiphy_dbg(wiphy, format, args...)			\
3529
	dev_dbg(&(wiphy)->dev, format, ##args)
3530 3531 3532 3533 3534 3535 3536 3537

#if defined(VERBOSE_DEBUG)
#define wiphy_vdbg	wiphy_dbg
#else
#define wiphy_vdbg(wiphy, format, args...)				\
({									\
	if (0)								\
		wiphy_printk(KERN_DEBUG, wiphy, format, ##args);	\
3538
	0;								\
3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549
})
#endif

/*
 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
 * of using a WARN/WARN_ON to get the message out, including the
 * file/line information and a backtrace.
 */
#define wiphy_WARN(wiphy, format, args...)			\
	WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);

3550
#endif /* __NET_CFG80211_H */