cfg80211.h 82.3 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 17
#include <linux/netlink.h>
#include <linux/skbuff.h>
18
#include <linux/nl80211.h>
19 20
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
J
Johannes Berg 已提交
21 22
#include <net/regulatory.h>

J
Johannes Berg 已提交
23
/* remove once we remove the wext stuff */
J
Johannes Berg 已提交
24 25 26
#include <net/iw_handler.h>
#include <linux/wireless.h>

27 28

/*
J
Johannes Berg 已提交
29 30 31 32 33 34 35 36
 * wireless hardware capability structures
 */

/**
 * enum ieee80211_band - supported frequency bands
 *
 * The bands are assigned this way because the supported
 * bitrates differ in these bands.
37
 *
J
Johannes Berg 已提交
38 39
 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
J
Johannes Berg 已提交
40
 * @IEEE80211_NUM_BANDS: number of defined bands
41
 */
J
Johannes Berg 已提交
42
enum ieee80211_band {
43 44
	IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
	IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
J
Johannes Berg 已提交
45 46 47 48

	/* keep last */
	IEEE80211_NUM_BANDS
};
49

50
/**
J
Johannes Berg 已提交
51 52 53 54 55 56 57 58 59
 * 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.
60
 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
J
Johannes Berg 已提交
61
 * 	is not permitted.
62
 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
J
Johannes Berg 已提交
63
 * 	is not permitted.
64
 */
J
Johannes Berg 已提交
65 66 67 68 69
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,
70 71
	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
72 73
};

74
#define IEEE80211_CHAN_NO_HT40 \
75
	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
76

J
Johannes Berg 已提交
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92
/**
 * 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)
 * @beacon_found: helper to regulatory code to indicate when a beacon
 *	has been found on this channel. Use regulatory_hint_found_beacon()
93
 *	to enable this, this is useful only on 5 GHz band.
J
Johannes Berg 已提交
94 95
 * @orig_mag: internal use
 * @orig_mpwr: internal use
A
Andy Green 已提交
96
 */
J
Johannes Berg 已提交
97 98 99 100 101 102 103 104 105 106 107 108
struct ieee80211_channel {
	enum ieee80211_band band;
	u16 center_freq;
	u16 hw_value;
	u32 flags;
	int max_antenna_gain;
	int max_power;
	bool beacon_found;
	u32 orig_flags;
	int orig_mag, orig_mpwr;
};

A
Andy Green 已提交
109
/**
J
Johannes Berg 已提交
110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
 * 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
129
 */
J
Johannes Berg 已提交
130 131 132 133 134 135 136
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
137

J
Johannes Berg 已提交
138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
/**
 * 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
157

J
Johannes Berg 已提交
158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
/**
 * 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
176 177
};

J
Johannes Berg 已提交
178 179 180 181 182 183 184 185 186 187 188 189 190 191
/**
 * 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
192
 * @ht_cap: HT capabilities in this band
J
Johannes Berg 已提交
193 194 195 196 197 198 199 200 201
 */
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;
};
A
Andy Green 已提交
202

J
Johannes Berg 已提交
203 204 205
/*
 * Wireless hardware/device configuration structures and methods
 */
A
Andy Green 已提交
206

J
Johannes Berg 已提交
207 208 209 210
/**
 * struct vif_params - describes virtual interface parameters
 * @mesh_id: mesh ID to use
 * @mesh_id_len: length of the mesh ID
211
 * @use_4addr: use 4-address frames
J
Johannes Berg 已提交
212 213 214 215
 */
struct vif_params {
       u8 *mesh_id;
       int mesh_id_len;
216
       int use_4addr;
J
Johannes Berg 已提交
217
};
A
Andy Green 已提交
218

J
Johannes Berg 已提交
219
/**
220 221 222 223 224 225 226 227 228 229
 * 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
230
 * @seq_len: length of @seq.
231 232 233 234 235 236 237 238 239
 */
struct key_params {
	u8 *key;
	u8 *seq;
	int key_len;
	int seq_len;
	u32 cipher;
};

240 241 242
/**
 * enum survey_info_flags - survey information flags
 *
J
Johannes Berg 已提交
243 244
 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
 *
245 246 247 248 249 250 251 252 253 254 255 256 257 258 259
 * 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,
};

/**
 * 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
 *
J
Johannes Berg 已提交
260 261
 * Used by dump_survey() to report back per-channel survey information.
 *
262 263 264 265 266 267 268 269 270
 * This structure can later be expanded with things like
 * channel duty cycle etc.
 */
struct survey_info {
	struct ieee80211_channel *channel;
	u32 filled;
	s8 noise;
};

271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290
/**
 * struct beacon_parameters - beacon parameters
 *
 * Used to configure the beacon for an interface.
 *
 * @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
 * @interval: beacon interval or zero if not changed
 * @dtim_period: DTIM period or zero if not changed
 * @head_len: length of @head
 * @tail_len: length of @tail
 */
struct beacon_parameters {
	u8 *head, *tail;
	int interval, dtim_period;
	int head_len, tail_len;
};

291 292 293 294 295
/**
 * 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
296
 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
297 298 299 300 301 302 303
 */
enum plink_actions {
	PLINK_ACTION_INVALID,
	PLINK_ACTION_OPEN,
	PLINK_ACTION_BLOCK,
};

304 305 306 307 308 309 310 311 312
/**
 * 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
313 314 315 316
 * @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_...))
317 318
 * @listen_interval: listen interval or -1 for no change
 * @aid: AID or zero for no change
J
Johannes Berg 已提交
319 320
 * @plink_action: plink action to take
 * @ht_capa: HT capabilities of station
321 322 323 324
 */
struct station_parameters {
	u8 *supported_rates;
	struct net_device *vlan;
325
	u32 sta_flags_mask, sta_flags_set;
326 327 328
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
329
	u8 plink_action;
330
	struct ieee80211_ht_cap *ht_capa;
331 332
};

333
/**
334
 * enum station_info_flags - station information flags
335
 *
336 337
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
338
 *
339 340 341 342 343 344
 * @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
345 346 347
 * @STATION_INFO_SIGNAL: @signal filled
 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
 *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
348 349
 * @STATION_INFO_RX_PACKETS: @rx_packets filled
 * @STATION_INFO_TX_PACKETS: @tx_packets filled
350
 */
351 352 353 354 355 356 357
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,
358 359
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
360 361
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392
};

/**
 * 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
 */
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,
};

/**
 * 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;
393 394 395
};

/**
396
 * struct station_info - station information
397
 *
398
 * Station information filled by driver for get_station() and dump_station.
399
 *
400
 * @filled: bitflag of flags from &enum station_info_flags
401 402 403
 * @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
404 405 406
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
407 408
 * @signal: signal strength of last received packet in dBm
 * @txrate: current unicast bitrate to this station
409 410
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
411 412 413 414
 * @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.
415
 */
416
struct station_info {
417 418 419 420
	u32 filled;
	u32 inactive_time;
	u32 rx_bytes;
	u32 tx_bytes;
421 422 423
	u16 llid;
	u16 plid;
	u8 plink_state;
424 425
	s8 signal;
	struct rate_info txrate;
426 427
	u32 rx_packets;
	u32 tx_packets;
428 429

	int generation;
430 431
};

432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451
/**
 * 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,
};

452 453 454 455 456 457
/**
 * 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
458 459 460 461 462 463 464
 * @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
465 466 467
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
468
	MPATH_INFO_SN			= BIT(1),
469 470 471 472 473 474 475 476 477 478 479 480 481 482
	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
483
 * @sn: target sequence number
484 485 486 487 488
 * @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
489 490 491 492
 * @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.
493 494 495 496
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
497
	u32 sn;
498 499 500 501 502
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;
503 504

	int generation;
505 506
};

507 508 509 510 511 512 513 514 515 516 517
/**
 * 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)
518 519 520
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
521
 * @ap_isolate: do not forward packets between connected stations
522 523 524 525 526
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
527 528
	u8 *basic_rates;
	u8 basic_rates_len;
529
	int ap_isolate;
530
};
531

532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548
struct mesh_config {
	/* Timeouts in ms */
	/* Mesh plink management parameters */
	u16 dot11MeshRetryTimeout;
	u16 dot11MeshConfirmTimeout;
	u16 dot11MeshHoldingTimeout;
	u16 dot11MeshMaxPeerLinks;
	u8  dot11MeshMaxRetries;
	u8  dot11MeshTTL;
	bool auto_open_plinks;
	/* HWMP parameters */
	u8  dot11MeshHWMPmaxPREQretries;
	u32 path_refresh_time;
	u16 min_discovery_timeout;
	u32 dot11MeshHWMPactivePathTimeout;
	u16 dot11MeshHWMPpreqMinInterval;
	u16 dot11MeshHWMPnetDiameterTraversalTime;
549
	u8  dot11MeshHWMPRootMode;
550 551
};

552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
/**
 * struct ieee80211_txq_params - TX queue parameters
 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
 * @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 {
	enum nl80211_txq_q queue;
	u16 txop;
	u16 cwmin;
	u16 cwmax;
	u8 aifs;
};

570 571 572
/* from net/wireless.h */
struct wiphy;

573 574 575
/* from net/ieee80211.h */
struct ieee80211_channel;

576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591
/**
 * 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.
592
 * @n_channels: total number of channels to scan
593 594
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
595
 * @wiphy: the wiphy this was for
596
 * @dev: the interface
J
Johannes Berg 已提交
597
 * @aborted: (internal) scan request was notified as aborted
598 599 600 601 602
 */
struct cfg80211_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
603
	const u8 *ie;
604
	size_t ie_len;
605 606 607

	/* internal */
	struct wiphy *wiphy;
608
	struct net_device *dev;
J
Johannes Berg 已提交
609
	bool aborted;
610 611 612

	/* keep last */
	struct ieee80211_channel *channels[0];
613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633
};

/**
 * 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
634
 * @channel: channel this BSS is on
635 636 637 638 639
 * @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
640 641 642
 *	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
643
 * @len_information_elements: total length of the information elements
644 645 646 647
 * @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
648
 * @signal: signal strength value (type depends on the wiphy's signal_type)
J
Johannes Berg 已提交
649
 * @free_priv: function pointer to free private data
650 651 652 653 654 655 656 657 658 659 660
 * @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;
661 662 663 664
	u8 *beacon_ies;
	size_t len_beacon_ies;
	u8 *proberesp_ies;
	size_t len_proberesp_ies;
665 666 667

	s32 signal;

J
Johannes Berg 已提交
668
	void (*free_priv)(struct cfg80211_bss *bss);
669 670 671
	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
};

672 673 674 675 676 677 678 679 680
/**
 * 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);


S
Samuel Ortiz 已提交
681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
/**
 * 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.
 */
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;
};

705 706 707 708 709
/**
 * struct cfg80211_auth_request - Authentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication.
J
Johannes Berg 已提交
710 711
 *
 * @bss: The BSS to authenticate with.
712 713 714
 * @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
715 716 717
 * @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
718 719 720 721
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Authentication frame is to be transmitted and authentication state is
 *	to be changed without having to wait for a response from the peer STA
 *	(AP).
722 723
 */
struct cfg80211_auth_request {
J
Johannes Berg 已提交
724
	struct cfg80211_bss *bss;
725 726
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
727
	enum nl80211_auth_type auth_type;
J
Johannes Berg 已提交
728 729
	const u8 *key;
	u8 key_len, key_idx;
730
	bool local_state_change;
731 732 733 734 735 736 737
};

/**
 * struct cfg80211_assoc_request - (Re)Association request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * (re)association.
J
Johannes Berg 已提交
738
 * @bss: The BSS to associate with.
739 740
 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
 * @ie_len: Length of ie buffer in octets
741
 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
S
Samuel Ortiz 已提交
742
 * @crypto: crypto settings
743
 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
744 745
 */
struct cfg80211_assoc_request {
J
Johannes Berg 已提交
746
	struct cfg80211_bss *bss;
747
	const u8 *ie, *prev_bssid;
748
	size_t ie_len;
S
Samuel Ortiz 已提交
749
	struct cfg80211_crypto_settings crypto;
J
Johannes Berg 已提交
750
	bool use_mfp;
751 752 753 754 755 756 757 758
};

/**
 * struct cfg80211_deauth_request - Deauthentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * deauthentication.
 *
J
Johannes Berg 已提交
759
 * @bss: the BSS to deauthenticate from
760 761
 * @ie: Extra IEs to add to Deauthentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
J
Johannes Berg 已提交
762
 * @reason_code: The reason code for the deauthentication
763 764
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Deauthentication frame is to be transmitted.
765 766
 */
struct cfg80211_deauth_request {
J
Johannes Berg 已提交
767
	struct cfg80211_bss *bss;
768 769
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
770
	u16 reason_code;
771
	bool local_state_change;
772 773 774 775 776 777 778 779
};

/**
 * struct cfg80211_disassoc_request - Disassociation request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * disassocation.
 *
J
Johannes Berg 已提交
780
 * @bss: the BSS to disassociate from
781 782
 * @ie: Extra IEs to add to Disassociation frame or %NULL
 * @ie_len: Length of ie buffer in octets
J
Johannes Berg 已提交
783
 * @reason_code: The reason code for the disassociation
784 785
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Disassociation frame is to be transmitted.
786 787
 */
struct cfg80211_disassoc_request {
J
Johannes Berg 已提交
788
	struct cfg80211_bss *bss;
789 790
	const u8 *ie;
	size_t ie_len;
J
Johannes Berg 已提交
791
	u16 reason_code;
792
	bool local_state_change;
793 794
};

J
Johannes Berg 已提交
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809
/**
 * 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.
 * @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
810
 * @beacon_interval: beacon interval to use
J
Johannes Berg 已提交
811 812
 * @privacy: this is a protected network, keys will be configured
 *	after joining
813
 * @basic_rates: bitmap of basic rates to use when creating the IBSS
J
Johannes Berg 已提交
814 815 816 817 818 819 820
 */
struct cfg80211_ibss_params {
	u8 *ssid;
	u8 *bssid;
	struct ieee80211_channel *channel;
	u8 *ie;
	u8 ssid_len, ie_len;
821
	u16 beacon_interval;
822
	u32 basic_rates;
J
Johannes Berg 已提交
823
	bool channel_fixed;
J
Johannes Berg 已提交
824
	bool privacy;
J
Johannes Berg 已提交
825 826
};

S
Samuel Ortiz 已提交
827 828 829 830 831 832 833 834 835 836 837 838 839
/**
 * 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
840 841
 * @ie: IEs for association request
 * @ie_len: Length of assoc_ie in octets
S
Samuel Ortiz 已提交
842 843
 * @privacy: indicates whether privacy-enabled APs should be used
 * @crypto: crypto settings
J
Johannes Berg 已提交
844 845 846
 * @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
S
Samuel Ortiz 已提交
847 848 849 850 851 852 853 854 855 856 857
 */
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
858 859
	const u8 *key;
	u8 key_len, key_idx;
S
Samuel Ortiz 已提交
860 861
};

862 863
/**
 * enum wiphy_params_flags - set_wiphy_params bitfield values
J
Johannes Berg 已提交
864 865 866 867 868
 * @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
869 870 871 872 873 874
 */
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,
875
	WIPHY_PARAM_COVERAGE_CLASS	= 1 << 4,
876 877
};

J
Johannes Berg 已提交
878 879 880 881 882 883
/*
 * cfg80211_bitrate_mask - masks for bitrate control
 */
struct cfg80211_bitrate_mask {
	struct {
		u32 legacy;
884 885
		/* TODO: add support for masking MCS rates; e.g.: */
		/* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */
J
Johannes Berg 已提交
886 887
	} control[IEEE80211_NUM_BANDS];
};
S
Samuel Ortiz 已提交
888 889 890 891 892 893 894 895 896 897 898 899 900
/**
 * 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
901

902 903 904 905 906 907 908 909 910
/**
 * 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.
 *
911 912 913 914
 * 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
915 916 917
 * @suspend: wiphy device needs to be suspended
 * @resume: wiphy device needs to be resumed
 *
J
Johannes Berg 已提交
918
 * @add_virtual_intf: create a new virtual interface with the given name,
919 920
 *	must set the struct wireless_dev's iftype. Beware: You must create
 *	the new netdev in the wiphy's network namespace!
921 922
 *
 * @del_virtual_intf: remove the virtual interface determined by ifindex.
923
 *
J
Johannes Berg 已提交
924 925
 * @change_virtual_intf: change type/configuration of virtual interface,
 *	keep the struct wireless_dev's iftype updated.
926
 *
927 928 929 930 931 932
 * @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
933 934
 *	after it returns. This function should return an error if it is
 *	not possible to retrieve the key, -ENOENT if it doesn't exist.
935 936
 *
 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
937
 *	and @key_index, return -ENOENT if the key doesn't exist.
938 939
 *
 * @set_default_key: set the default key on an interface
940
 *
941 942
 * @set_default_mgmt_key: set the default management frame key on an interface
 *
943 944 945 946 947 948
 * @add_beacon: Add a beacon with given parameters, @head, @interval
 *	and @dtim_period will be valid, @tail is optional.
 * @set_beacon: Change the beacon parameters for an access point mode
 *	interface. This should reject the call when no beacon has been
 *	configured.
 * @del_beacon: Remove beacon configuration and stop sending the beacon.
949 950 951 952
 *
 * @add_station: Add a new station.
 * @del_station: Remove a station; @mac may be NULL to remove all stations.
 * @change_station: Modify a given station.
J
Johannes Berg 已提交
953 954 955 956 957 958 959 960
 * @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
961
 *
962 963 964 965 966 967
 * @get_mesh_params: Put the current mesh parameters into *params
 *
 * @set_mesh_params: Set mesh parameters.
 *	The mask is a bitfield which tells us which parameters to
 *	set, and which to leave alone.
 *
968
 * @change_bss: Modify parameters for a given BSS.
969 970
 *
 * @set_txq_params: Set TX queue parameters
971
 *
972 973 974 975 976
 * @set_channel: Set channel for a given wireless interface. Some devices
 *	may support multi-channel operation (by channel hopping) so cfg80211
 *	doesn't verify much. Note, however, that the passed netdev may be
 *	%NULL as well if the user requested changing the channel for the
 *	device itself, or for a monitor interface.
977
 *
978 979 980 981
 * @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.
982 983 984 985 986
 *
 * @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
987
 *
S
Samuel Ortiz 已提交
988 989 990 991 992 993
 * @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
994 995 996 997
 * @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.
998 999 1000 1001 1002
 *
 * @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.
1003 1004 1005
 *
 * @set_tx_power: set the transmit power according to the parameters
 * @get_tx_power: store the current TX power into the dbm variable;
J
Johannes Berg 已提交
1006 1007
 *	return 0 if successful
 *
J
Johannes Berg 已提交
1008 1009
 * @set_wds_peer: set the WDS peer for a WDS interface
 *
J
Johannes Berg 已提交
1010 1011
 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
 *	functions to adjust rfkill hw state
1012
 *
1013 1014
 * @dump_survey: get site survey information.
 *
1015 1016 1017 1018 1019 1020 1021 1022
 * @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.
1023
 * @action: Transmit an action frame
1024
 *
1025
 * @testmode_cmd: run a test mode command
S
Samuel Ortiz 已提交
1026
 *
J
Johannes Berg 已提交
1027 1028
 * @set_bitrate_mask: set the bitrate mask configuration
 *
S
Samuel Ortiz 已提交
1029 1030 1031 1032 1033
 * @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.
1034 1035
 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
 *	allows the driver to adjust the dynamic ps timeout value.
1036
 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
S
Samuel Ortiz 已提交
1037
 *
1038 1039
 */
struct cfg80211_ops {
J
Johannes Berg 已提交
1040 1041 1042
	int	(*suspend)(struct wiphy *wiphy);
	int	(*resume)(struct wiphy *wiphy);

1043
	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
1044 1045
				    enum nl80211_iftype type, u32 *flags,
				    struct vif_params *params);
1046
	int	(*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
1047 1048
	int	(*change_virtual_intf)(struct wiphy *wiphy,
				       struct net_device *dev,
1049 1050
				       enum nl80211_iftype type, u32 *flags,
				       struct vif_params *params);
1051 1052

	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1053
			   u8 key_index, const u8 *mac_addr,
1054 1055
			   struct key_params *params);
	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1056
			   u8 key_index, const u8 *mac_addr, void *cookie,
1057 1058
			   void (*callback)(void *cookie, struct key_params*));
	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1059
			   u8 key_index, const u8 *mac_addr);
1060 1061 1062
	int	(*set_default_key)(struct wiphy *wiphy,
				   struct net_device *netdev,
				   u8 key_index);
1063 1064 1065
	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
					struct net_device *netdev,
					u8 key_index);
1066 1067 1068 1069 1070 1071

	int	(*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
			      struct beacon_parameters *info);
	int	(*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
			      struct beacon_parameters *info);
	int	(*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
1072 1073 1074 1075 1076 1077 1078 1079


	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);
1080
	int	(*get_station)(struct wiphy *wiphy, struct net_device *dev,
1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
			       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);
1097 1098 1099 1100 1101 1102
	int	(*get_mesh_params)(struct wiphy *wiphy,
				struct net_device *dev,
				struct mesh_config *conf);
	int	(*set_mesh_params)(struct wiphy *wiphy,
				struct net_device *dev,
				const struct mesh_config *nconf, u32 mask);
1103 1104
	int	(*change_bss)(struct wiphy *wiphy, struct net_device *dev,
			      struct bss_parameters *params);
1105 1106 1107

	int	(*set_txq_params)(struct wiphy *wiphy,
				  struct ieee80211_txq_params *params);
1108

1109
	int	(*set_channel)(struct wiphy *wiphy, struct net_device *dev,
1110
			       struct ieee80211_channel *chan,
S
Sujith 已提交
1111
			       enum nl80211_channel_type channel_type);
1112

1113 1114
	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_scan_request *request);
1115 1116 1117 1118 1119 1120

	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,
J
Johannes Berg 已提交
1121 1122
			  struct cfg80211_deauth_request *req,
			  void *cookie);
1123
	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
J
Johannes Berg 已提交
1124 1125
			    struct cfg80211_disassoc_request *req,
			    void *cookie);
J
Johannes Berg 已提交
1126

S
Samuel Ortiz 已提交
1127 1128 1129 1130 1131
	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
1132 1133 1134
	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);
1135 1136

	int	(*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1137 1138

	int	(*set_tx_power)(struct wiphy *wiphy,
1139
				enum nl80211_tx_power_setting type, int mbm);
1140
	int	(*get_tx_power)(struct wiphy *wiphy, int *dbm);
J
Johannes Berg 已提交
1141

J
Johannes Berg 已提交
1142 1143 1144
	int	(*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
				u8 *addr);

J
Johannes Berg 已提交
1145
	void	(*rfkill_poll)(struct wiphy *wiphy);
1146 1147 1148 1149

#ifdef CONFIG_NL80211_TESTMODE
	int	(*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
#endif
J
Johannes Berg 已提交
1150

J
Johannes Berg 已提交
1151 1152 1153 1154 1155
	int	(*set_bitrate_mask)(struct wiphy *wiphy,
				    struct net_device *dev,
				    const u8 *peer,
				    const struct cfg80211_bitrate_mask *mask);

1156 1157 1158
	int	(*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
			int idx, struct survey_info *info);

S
Samuel Ortiz 已提交
1159 1160 1161 1162 1163 1164
	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);

1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
	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);

1175 1176 1177
	int	(*action)(struct wiphy *wiphy, struct net_device *dev,
			  struct ieee80211_channel *chan,
			  enum nl80211_channel_type channel_type,
1178
			  bool channel_type_valid,
1179 1180
			  const u8 *buf, size_t len, u64 *cookie);

J
Johannes Berg 已提交
1181 1182
	int	(*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
				  bool enabled, int timeout);
1183 1184 1185 1186

	int	(*set_cqm_rssi_config)(struct wiphy *wiphy,
				       struct net_device *dev,
				       s32 rssi_thold, u32 rssi_hyst);
1187 1188
};

J
Johannes Berg 已提交
1189 1190 1191 1192 1193 1194
/*
 * wireless hardware and networking interfaces structures
 * and registration/helper functions
 */

/**
J
Johannes Berg 已提交
1195 1196 1197
 * enum wiphy_flags - wiphy capability flags
 *
 * @WIPHY_FLAG_CUSTOM_REGULATORY:  tells us the driver for this device
J
Johannes Berg 已提交
1198 1199 1200 1201
 * 	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
1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
 *	ignore regulatory domain settings until it gets its own regulatory
 *	domain via its regulatory_hint(). 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 gauranteed for frequencies
 *	or settings outside of its regulatory domain.
 * @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
1214
 *	hints read the documenation for regulatory_hint_found_beacon()
J
Johannes Berg 已提交
1215 1216 1217 1218 1219 1220
 * @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
1221 1222 1223
 * @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
J
Johannes Berg 已提交
1224 1225 1226 1227 1228 1229 1230
 */
enum wiphy_flags {
	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),
1231 1232
	WIPHY_FLAG_4ADDR_AP		= BIT(5),
	WIPHY_FLAG_4ADDR_STATION	= BIT(6),
J
Johannes Berg 已提交
1233 1234
};

1235 1236 1237 1238
struct mac_address {
	u8 addr[ETH_ALEN];
};

J
Johannes Berg 已提交
1239 1240
/**
 * struct wiphy - wireless hardware description
J
Johannes Berg 已提交
1241 1242 1243 1244 1245 1246 1247 1248
 * @reg_notifier: the driver's regulatory notification callback
 * @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
1249 1250 1251 1252 1253
 * @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
1254
 * @_net: the network namespace this wiphy currently lives in
1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
 * @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.
J
Johannes Berg 已提交
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
 *	automatically on wiphy renames
 * @dev: (virtual) struct device for this wiphy
 * @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
 * @flags: wiphy flags, see &enum wiphy_flags
 * @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
 * @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
 * @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
J
Johannes Berg 已提交
1289 1290 1291 1292
 */
struct wiphy {
	/* assign these fields before you register the wiphy */

1293
	/* permanent MAC address(es) */
J
Johannes Berg 已提交
1294
	u8 perm_addr[ETH_ALEN];
1295 1296 1297 1298
	u8 addr_mask[ETH_ALEN];

	u16 n_addresses;
	struct mac_address *addresses;
J
Johannes Berg 已提交
1299 1300 1301 1302

	/* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
	u16 interface_modes;

J
Johannes Berg 已提交
1303
	u32 flags;
1304

J
Johannes Berg 已提交
1305 1306 1307 1308 1309 1310 1311 1312 1313
	enum cfg80211_signal_type signal_type;

	int bss_priv_size;
	u8 max_scan_ssids;
	u16 max_scan_ie_len;

	int n_cipher_suites;
	const u32 *cipher_suites;

1314 1315 1316 1317
	u8 retry_short;
	u8 retry_long;
	u32 frag_threshold;
	u32 rts_threshold;
1318
	u8 coverage_class;
1319

1320 1321 1322
	char fw_version[ETHTOOL_BUSINFO_LEN];
	u32 hw_version;

S
Samuel Ortiz 已提交
1323 1324
	u8 max_num_pmkids;

J
Johannes Berg 已提交
1325 1326 1327 1328 1329
	/* 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. */
1330
	const void *privid;
J
Johannes Berg 已提交
1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348

	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;

	/* dir in debugfs: ieee80211/<wiphyname> */
	struct dentry *debugfsdir;

1349 1350 1351 1352 1353
#ifdef CONFIG_NET_NS
	/* the network namespace this phy lives in currently */
	struct net *_net;
#endif

J
Johannes Berg 已提交
1354 1355 1356 1357
#ifdef CONFIG_CFG80211_WEXT
	const struct iw_handler_def *wext;
#endif

J
Johannes Berg 已提交
1358 1359 1360
	char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};

1361 1362
static inline struct net *wiphy_net(struct wiphy *wiphy)
{
E
Eric Dumazet 已提交
1363
	return read_pnet(&wiphy->_net);
1364 1365 1366 1367
}

static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
{
E
Eric Dumazet 已提交
1368
	write_pnet(&wiphy->_net, net);
1369 1370
}

J
Johannes Berg 已提交
1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381
/**
 * 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;
}

1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392
/**
 * 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
1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
/**
 * 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
 */
1419
static inline const char *wiphy_name(const struct wiphy *wiphy)
J
Johannes Berg 已提交
1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435
{
	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.
 */
1436
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
J
Johannes Berg 已提交
1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464

/**
 * 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
1465
/* internal structs */
1466
struct cfg80211_conn;
J
Johannes Berg 已提交
1467
struct cfg80211_internal_bss;
J
Johannes Berg 已提交
1468
struct cfg80211_cached_keys;
J
Johannes Berg 已提交
1469 1470

#define MAX_AUTH_BSSES		4
1471

J
Johannes Berg 已提交
1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484
/**
 * struct wireless_dev - wireless per-netdev state
 *
 * This structure must be allocated by the driver/stack
 * that uses the ieee80211_ptr field in struct net_device
 * (this is intentional so it can be allocated along with
 * the netdev.)
 *
 * @wiphy: pointer to hardware description
 * @iftype: interface type
 * @list: (private) Used to collect the interfaces
 * @netdev: (private) Used to reference back to the netdev
 * @current_bss: (private) Used by the internal configuration code
1485 1486
 * @channel: (private) Used by the internal configuration code to track
 *	user-set AP, monitor and WDS channels for wireless extensions
J
Johannes Berg 已提交
1487 1488 1489 1490
 * @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
 * @wext: (private) Used by the internal wireless extensions compat code
1491 1492 1493 1494
 * @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
1495 1496
 * @action_registrations: list of registrations for action frames
 * @action_registrations_lock: lock for the list
J
Johannes Berg 已提交
1497 1498
 * @mtx: mutex used to lock data in this struct
 * @cleanup_work: work struct used for cleanup that can't be done directly
J
Johannes Berg 已提交
1499 1500 1501 1502 1503
 */
struct wireless_dev {
	struct wiphy *wiphy;
	enum nl80211_iftype iftype;

J
Johannes Berg 已提交
1504
	/* the remainder of this struct should be private to cfg80211 */
J
Johannes Berg 已提交
1505 1506 1507
	struct list_head list;
	struct net_device *netdev;

1508 1509 1510
	struct list_head action_registrations;
	spinlock_t action_registrations_lock;

J
Johannes Berg 已提交
1511 1512
	struct mutex mtx;

1513 1514
	struct work_struct cleanup_work;

1515 1516
	bool use_4addr;

S
Samuel Ortiz 已提交
1517
	/* currently used for IBSS and SME - might be rearranged later */
J
Johannes Berg 已提交
1518 1519
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len;
S
Samuel Ortiz 已提交
1520 1521
	enum {
		CFG80211_SME_IDLE,
1522
		CFG80211_SME_CONNECTING,
S
Samuel Ortiz 已提交
1523 1524
		CFG80211_SME_CONNECTED,
	} sme_state;
1525
	struct cfg80211_conn *conn;
J
Johannes Berg 已提交
1526
	struct cfg80211_cached_keys *connect_keys;
J
Johannes Berg 已提交
1527

J
Johannes Berg 已提交
1528 1529 1530
	struct list_head event_list;
	spinlock_t event_lock;

J
Johannes Berg 已提交
1531 1532 1533
	struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
	struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
	struct cfg80211_internal_bss *current_bss; /* associated / joined */
1534
	struct ieee80211_channel *channel;
J
Johannes Berg 已提交
1535

K
Kalle Valo 已提交
1536 1537 1538
	bool ps;
	int ps_timeout;

J
Johannes Berg 已提交
1539
#ifdef CONFIG_CFG80211_WEXT
J
Johannes Berg 已提交
1540
	/* wext data */
1541
	struct {
1542 1543
		struct cfg80211_ibss_params ibss;
		struct cfg80211_connect_params connect;
J
Johannes Berg 已提交
1544
		struct cfg80211_cached_keys *keys;
1545 1546
		u8 *ie;
		size_t ie_len;
1547
		u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
1548
		u8 ssid[IEEE80211_MAX_SSID_LEN];
1549
		s8 default_key, default_mgmt_key;
K
Kalle Valo 已提交
1550
		bool prev_bssid_valid;
1551
	} wext;
J
Johannes Berg 已提交
1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571
#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);
}

/*
 * Utility functions
 */

/**
 * ieee80211_channel_to_frequency - convert channel number to frequency
J
Johannes Berg 已提交
1572
 * @chan: channel number
J
Johannes Berg 已提交
1573 1574 1575 1576 1577
 */
extern int ieee80211_channel_to_frequency(int chan);

/**
 * ieee80211_frequency_to_channel - convert frequency to channel number
J
Johannes Berg 已提交
1578
 * @freq: center frequency
J
Johannes Berg 已提交
1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
 */
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
1593 1594
 * @wiphy: the struct wiphy to get the channel for
 * @freq: the center frequency of the channel
J
Johannes Berg 已提交
1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624
 */
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
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640
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
1641 1642
/**
 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
J
Johannes Berg 已提交
1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667
 * @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
1668 1669 1670
 */

struct ieee80211_radiotap_iterator {
J
Johannes Berg 已提交
1671 1672 1673 1674 1675
	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;
1676
	__le32 *_next_bitmap;
J
Johannes Berg 已提交
1677 1678

	unsigned char *this_arg;
J
Johannes Berg 已提交
1679
	int this_arg_index;
J
Johannes Berg 已提交
1680
	int this_arg_size;
J
Johannes Berg 已提交
1681

J
Johannes Berg 已提交
1682 1683 1684 1685 1686 1687
	int is_radiotap_ns;

	int _max_length;
	int _arg_index;
	uint32_t _bitmap_shifter;
	int _reset_on_ext;
J
Johannes Berg 已提交
1688 1689 1690
};

extern int ieee80211_radiotap_iterator_init(
J
Johannes Berg 已提交
1691 1692 1693
	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
1694 1695

extern int ieee80211_radiotap_iterator_next(
J
Johannes Berg 已提交
1696 1697
	struct ieee80211_radiotap_iterator *iterator);

J
Johannes Berg 已提交
1698

1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725
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
 */
unsigned int ieee80211_hdrlen(__le16 fc);

/**
 * 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
1726
int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
1727 1728 1729 1730 1731 1732 1733 1734 1735 1736
			   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
1737
int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
1738 1739
			     enum nl80211_iftype iftype, u8 *bssid, bool qos);

Z
Zhu Yi 已提交
1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757
/**
 * 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.
 */
void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
			      const u8 *addr, enum nl80211_iftype iftype,
			      const unsigned int extra_headroom);

1758 1759 1760 1761 1762 1763
/**
 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
 * @skb: the data frame
 */
unsigned int cfg80211_classify8021d(struct sk_buff *skb);

1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779
/**
 * 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);

J
Johannes Berg 已提交
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828
/*
 * Regulatory helper functions for wiphys
 */

/**
 * 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
1829 1830 1831 1832
 * @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
1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846
 * @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.
 */
1847 1848 1849
extern int freq_reg_info(struct wiphy *wiphy,
			 u32 center_freq,
			 u32 desired_bw_khz,
J
Johannes Berg 已提交
1850 1851 1852 1853 1854 1855 1856 1857
			 const struct ieee80211_reg_rule **reg_rule);

/*
 * Temporary wext handlers & helper functions
 *
 * In the future cfg80211 will simply assign the entire wext handler
 * structure to netdevs it manages, but we're not there yet.
 */
J
Johannes Berg 已提交
1858 1859 1860
int cfg80211_wext_giwname(struct net_device *dev,
			  struct iw_request_info *info,
			  char *name, char *extra);
1861 1862 1863 1864
int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra);
int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra);
1865 1866 1867 1868 1869 1870
int cfg80211_wext_siwscan(struct net_device *dev,
			  struct iw_request_info *info,
			  union iwreq_data *wrqu, char *extra);
int cfg80211_wext_giwscan(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_point *data, char *extra);
1871 1872 1873
int cfg80211_wext_siwmlme(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_point *data, char *extra);
1874 1875 1876
int cfg80211_wext_giwrange(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra);
1877 1878 1879 1880 1881 1882 1883 1884 1885 1886
int cfg80211_wext_siwgenie(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra);
int cfg80211_wext_siwauth(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *data, char *extra);
int cfg80211_wext_giwauth(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *data, char *extra);

1887 1888 1889 1890 1891 1892
int cfg80211_wext_siwfreq(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_freq *freq, char *extra);
int cfg80211_wext_giwfreq(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_freq *freq, char *extra);
1893 1894 1895 1896 1897 1898
int cfg80211_wext_siwessid(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *ssid);
int cfg80211_wext_giwessid(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *ssid);
J
Johannes Berg 已提交
1899 1900 1901 1902 1903 1904 1905
int cfg80211_wext_siwrate(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *rate, char *extra);
int cfg80211_wext_giwrate(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *rate, char *extra);

1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923
int cfg80211_wext_siwrts(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_param *rts, char *extra);
int cfg80211_wext_giwrts(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_param *rts, char *extra);
int cfg80211_wext_siwfrag(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *frag, char *extra);
int cfg80211_wext_giwfrag(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *frag, char *extra);
int cfg80211_wext_siwretry(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *retry, char *extra);
int cfg80211_wext_giwretry(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *retry, char *extra);
1924 1925 1926 1927 1928 1929 1930 1931 1932
int cfg80211_wext_siwencodeext(struct net_device *dev,
			       struct iw_request_info *info,
			       struct iw_point *erq, char *extra);
int cfg80211_wext_siwencode(struct net_device *dev,
			    struct iw_request_info *info,
			    struct iw_point *erq, char *keybuf);
int cfg80211_wext_giwencode(struct net_device *dev,
			    struct iw_request_info *info,
			    struct iw_point *erq, char *keybuf);
1933 1934 1935 1936 1937 1938
int cfg80211_wext_siwtxpower(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *data, char *keybuf);
int cfg80211_wext_giwtxpower(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *data, char *keybuf);
1939
struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
1940

J
Johannes Berg 已提交
1941 1942 1943 1944 1945 1946 1947
int cfg80211_wext_siwpower(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *wrq, char *extra);
int cfg80211_wext_giwpower(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *wrq, char *extra);

J
Johannes Berg 已提交
1948 1949 1950 1951 1952 1953
int cfg80211_wext_siwap(struct net_device *dev,
			struct iw_request_info *info,
			struct sockaddr *ap_addr, char *extra);
int cfg80211_wext_giwap(struct net_device *dev,
			struct iw_request_info *info,
			struct sockaddr *ap_addr, char *extra);
J
Johannes Berg 已提交
1954

1955 1956 1957 1958
int cfg80211_wext_siwpmksa(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra);

J
Johannes Berg 已提交
1959 1960 1961 1962 1963
/*
 * callbacks for asynchronous cfg80211 methods, notification
 * functions and BSS handling helpers
 */

1964 1965 1966 1967 1968 1969 1970 1971 1972 1973
/**
 * 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);

/**
J
Johannes Berg 已提交
1974
 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
1975 1976
 *
 * @wiphy: the wiphy reporting the BSS
J
Johannes Berg 已提交
1977 1978 1979
 * @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
1980
 * @signal: the signal strength, type depends on the wiphy's signal_type
1981 1982 1983 1984 1985 1986 1987 1988 1989
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
 */
struct cfg80211_bss*
cfg80211_inform_bss_frame(struct wiphy *wiphy,
			  struct ieee80211_channel *channel,
			  struct ieee80211_mgmt *mgmt, size_t len,
J
Johannes Berg 已提交
1990
			  s32 signal, gfp_t gfp);
1991

J
Johannes Berg 已提交
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
/**
 * 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
 * @timestamp: the TSF timestamp sent by the peer
 * @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.
 */
2009 2010 2011 2012 2013 2014 2015 2016
struct cfg80211_bss*
cfg80211_inform_bss(struct wiphy *wiphy,
		    struct ieee80211_channel *channel,
		    const u8 *bssid,
		    u64 timestamp, u16 capability, u16 beacon_interval,
		    const u8 *ie, size_t ielen,
		    s32 signal, gfp_t gfp);

2017 2018 2019
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
				      struct ieee80211_channel *channel,
				      const u8 *bssid,
2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
				      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);
}

2031 2032 2033 2034 2035
struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
				       struct ieee80211_channel *channel,
				       const u8 *meshid, size_t meshidlen,
				       const u8 *meshcfg);
void cfg80211_put_bss(struct cfg80211_bss *bss);
J
Johannes Berg 已提交
2036

2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047
/**
 * 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
2048

2049 2050 2051 2052 2053 2054 2055
/**
 * 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
2056 2057
 * station mode. The driver is required to call either this function or
 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
2058
 * call. This function may sleep.
2059
 */
2060
void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
2061

2062 2063 2064 2065
/**
 * 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
2066 2067
 *
 * This function may sleep.
2068
 */
2069
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
2070

2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082
/**
 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
 * @dev: network device
 * @addr: The MAC address of the device with which the authentication timed out
 *
 * When a pending authentication had no action yet, the driver may decide
 * to not send a deauth frame, but in that case must calls this function
 * to tell cfg80211 about this decision. It is only valid to call this
 * function within the deauth() callback.
 */
void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);

2083 2084 2085 2086 2087 2088 2089
/**
 * cfg80211_send_rx_assoc - notification of processed association
 * @dev: network device
 * @buf: (re)association response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a (re)association response has been
2090 2091
 * processed in station mode. The driver is required to call either this
 * function or cfg80211_send_assoc_timeout() to indicate the result of
2092
 * cfg80211_ops::assoc() call. This function may sleep.
2093
 */
2094
void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
2095

2096 2097 2098 2099
/**
 * 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
2100 2101
 *
 * This function may sleep.
2102
 */
2103
void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
2104

2105
/**
2106
 * cfg80211_send_deauth - notification of processed deauthentication
2107 2108 2109 2110 2111
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever deauthentication has been processed in
2112
 * station mode. This includes both received deauthentication frames and
2113
 * locally generated ones. This function may sleep.
2114
 */
2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125
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);
2126 2127

/**
2128
 * cfg80211_send_disassoc - notification of processed disassociation
2129 2130 2131 2132 2133
 * @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
2134
 * station mode. This includes both received disassociation frames and locally
2135
 * generated ones. This function may sleep.
2136
 */
2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148
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);
2149

2150 2151 2152 2153 2154 2155 2156
/**
 * 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
 * @key_id: Key identifier (0..3)
 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
2157
 * @gfp: allocation flags
2158 2159 2160 2161 2162 2163 2164
 *
 * 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,
2165
				  const u8 *tsc, gfp_t gfp);
2166

J
Johannes Berg 已提交
2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182
/**
 * 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);

J
Johannes Berg 已提交
2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201
/**
 * 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);

2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278
#ifdef CONFIG_NL80211_TESTMODE
/**
 * 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),
#else
#define CFG80211_TESTMODE_CMD(cmd)
#endif

S
Samuel Ortiz 已提交
2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333
/**
 * 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
 * @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.
 */
void cfg80211_roamed(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, gfp_t gfp);

/**
 * 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);

2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361
/**
 * 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
2362

2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374

/**
 * 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);

2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408
/**
 * cfg80211_rx_action - notification of received, unprocessed Action frame
 * @dev: network device
 * @freq: Frequency on which the frame was received in MHz
 * @buf: Action frame (header + body)
 * @len: length of the frame data
 * @gfp: context flags
 * Returns %true if a user space application is responsible for rejecting the
 *	unrecognized Action frame; %false if no such application is registered
 *	(i.e., the driver is responsible for rejecting the unrecognized Action
 *	frame)
 *
 * This function is called whenever an Action frame is received for a station
 * mode interface, but is not processed in kernel.
 */
bool cfg80211_rx_action(struct net_device *dev, int freq, const u8 *buf,
			size_t len, gfp_t gfp);

/**
 * cfg80211_action_tx_status - notification of TX status for Action frame
 * @dev: network device
 * @cookie: Cookie returned by cfg80211_ops::action()
 * @buf: Action frame (header + body)
 * @len: length of the frame data
 * @ack: Whether frame was acknowledged
 * @gfp: context flags
 *
 * This function is called whenever an Action frame was requested to be
 * transmitted with cfg80211_ops::action() to report the TX status of the
 * transmission attempt.
 */
void cfg80211_action_tx_status(struct net_device *dev, u64 cookie,
			       const u8 *buf, size_t len, bool ack, gfp_t gfp);

2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422

/**
 * 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);

2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484
#ifdef __KERNEL__

/* Logging, debugging and troubleshooting/diagnostic helpers. */

/* wiphy_printk helpers, similar to dev_printk */

#define wiphy_printk(level, wiphy, format, args...)		\
	printk(level "%s: " format, wiphy_name(wiphy), ##args)
#define wiphy_emerg(wiphy, format, args...)			\
	wiphy_printk(KERN_EMERG, wiphy, format, ##args)
#define wiphy_alert(wiphy, format, args...)			\
	wiphy_printk(KERN_ALERT, wiphy, format, ##args)
#define wiphy_crit(wiphy, format, args...)			\
	wiphy_printk(KERN_CRIT, wiphy, format, ##args)
#define wiphy_err(wiphy, format, args...)			\
	wiphy_printk(KERN_ERR, wiphy, format, ##args)
#define wiphy_warn(wiphy, format, args...)			\
	wiphy_printk(KERN_WARNING, wiphy, format, ##args)
#define wiphy_notice(wiphy, format, args...)			\
	wiphy_printk(KERN_NOTICE, wiphy, format, ##args)
#define wiphy_info(wiphy, format, args...)			\
	wiphy_printk(KERN_INFO, wiphy, format, ##args)
#define wiphy_debug(wiphy, format, args...)			\
	wiphy_printk(KERN_DEBUG, wiphy, format, ##args)

#if defined(DEBUG)
#define wiphy_dbg(wiphy, format, args...)			\
	wiphy_printk(KERN_DEBUG, wiphy, format, ##args)
#elif defined(CONFIG_DYNAMIC_DEBUG)
#define wiphy_dbg(wiphy, format, args...)			\
	dynamic_pr_debug("%s: " format,	wiphy_name(dev), ##args)
#else
#define wiphy_dbg(wiphy, format, args...)				\
({									\
	if (0)								\
		wiphy_printk(KERN_DEBUG, wiphy, format, ##args);	\
	0;								\
})
#endif

#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);	\
		0;							\
})
#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);

#endif

2485
#endif /* __NET_CFG80211_H */