cfg80211.h 77.2 KB
Newer Older
1 2
#ifndef __NET_CFG80211_H
#define __NET_CFG80211_H
Johannes Berg's avatar
Johannes Berg committed
3 4 5
/*
 * 802.11 device and configuration interface
 *
6
 * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
Johannes Berg's avatar
Johannes Berg committed
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

Johannes Berg's avatar
Johannes Berg committed
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>
Johannes Berg's avatar
Johannes Berg committed
21 22
#include <net/regulatory.h>

Johannes Berg's avatar
Johannes Berg committed
23
/* remove once we remove the wext stuff */
Johannes Berg's avatar
Johannes Berg committed
24 25 26
#include <net/iw_handler.h>
#include <linux/wireless.h>

27 28

/*
Johannes Berg's avatar
Johannes Berg committed
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
 *
Johannes Berg's avatar
Johannes Berg committed
38 39
 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
40
 */
Johannes Berg's avatar
Johannes Berg committed
41
enum ieee80211_band {
42 43
	IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
	IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
Johannes Berg's avatar
Johannes Berg committed
44 45 46 47

	/* keep last */
	IEEE80211_NUM_BANDS
};
48

49
/**
Johannes Berg's avatar
Johannes Berg committed
50 51 52 53 54 55 56 57 58
 * 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.
59
 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
Johannes Berg's avatar
Johannes Berg committed
60
 * 	is not permitted.
61
 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
Johannes Berg's avatar
Johannes Berg committed
62
 * 	is not permitted.
63
 */
Johannes Berg's avatar
Johannes Berg committed
64 65 66 67 68
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,
69 70
	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
71 72
};

73
#define IEEE80211_CHAN_NO_HT40 \
74
	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
75

Johannes Berg's avatar
Johannes Berg committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
/**
 * 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()
 *	to enable this, this is is useful only on 5 GHz band.
 * @orig_mag: internal use
 * @orig_mpwr: internal use
Andy Green's avatar
Andy Green committed
95
 */
Johannes Berg's avatar
Johannes Berg committed
96 97 98 99 100 101 102 103 104 105 106 107
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;
};

Andy Green's avatar
Andy Green committed
108
/**
Johannes Berg's avatar
Johannes Berg committed
109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
 * 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.
Andy Green's avatar
Andy Green committed
128
 */
Johannes Berg's avatar
Johannes Berg committed
129 130 131 132 133 134 135
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,
};
Andy Green's avatar
Andy Green committed
136

Johannes Berg's avatar
Johannes Berg committed
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155
/**
 * 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;
};
Andy Green's avatar
Andy Green committed
156

Johannes Berg's avatar
Johannes Berg committed
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
/**
 * 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;
Andy Green's avatar
Andy Green committed
175 176
};

Johannes Berg's avatar
Johannes Berg committed
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199
/**
 * 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
 */
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;
};
Andy Green's avatar
Andy Green committed
200

Johannes Berg's avatar
Johannes Berg committed
201 202 203
/*
 * Wireless hardware/device configuration structures and methods
 */
Andy Green's avatar
Andy Green committed
204

Johannes Berg's avatar
Johannes Berg committed
205 206 207 208
/**
 * struct vif_params - describes virtual interface parameters
 * @mesh_id: mesh ID to use
 * @mesh_id_len: length of the mesh ID
209
 * @use_4addr: use 4-address frames
Johannes Berg's avatar
Johannes Berg committed
210 211 212 213
 */
struct vif_params {
       u8 *mesh_id;
       int mesh_id_len;
214
       int use_4addr;
Johannes Berg's avatar
Johannes Berg committed
215
};
Andy Green's avatar
Andy Green committed
216

Johannes Berg's avatar
Johannes Berg committed
217
/**
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
 * 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.
 */
struct key_params {
	u8 *key;
	u8 *seq;
	int key_len;
	int seq_len;
	u32 cipher;
};

237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265
/**
 * enum survey_info_flags - survey information flags
 *
 * 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
 *
 * Used by dump_survey() to report back per-channel survey information.
 *
 * @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
 *
 * This structure can later be expanded with things like
 * channel duty cycle etc.
 */
struct survey_info {
	struct ieee80211_channel *channel;
	u32 filled;
	s8 noise;
};

266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285
/**
 * 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;
};

286 287 288 289 290 291 292 293 294 295 296 297 298
/**
 * enum plink_action - actions to perform in mesh peers
 *
 * @PLINK_ACTION_INVALID: action 0 is reserved
 * @PLINK_ACTION_OPEN: start mesh peer link establishment
 * @PLINK_ACTION_BLOCL: block traffic from this mesh peer
 */
enum plink_actions {
	PLINK_ACTION_INVALID,
	PLINK_ACTION_OPEN,
	PLINK_ACTION_BLOCK,
};

299 300 301 302 303 304 305 306 307
/**
 * 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
308 309 310 311
 * @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_...))
312 313 314 315 316 317
 * @listen_interval: listen interval or -1 for no change
 * @aid: AID or zero for no change
 */
struct station_parameters {
	u8 *supported_rates;
	struct net_device *vlan;
318
	u32 sta_flags_mask, sta_flags_set;
319 320 321
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
322
	u8 plink_action;
323
	struct ieee80211_ht_cap *ht_capa;
324 325
};

326
/**
327
 * enum station_info_flags - station information flags
328
 *
329 330
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
331
 *
332 333 334 335 336 337
 * @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
338 339 340
 * @STATION_INFO_SIGNAL: @signal filled
 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
 *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
341 342
 * @STATION_INFO_RX_PACKETS: @rx_packets filled
 * @STATION_INFO_TX_PACKETS: @tx_packets filled
343
 */
344 345 346 347 348 349 350
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,
351 352
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
353 354
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
};

/**
 * 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;
386 387 388
};

/**
389
 * struct station_info - station information
390
 *
391
 * Station information filled by driver for get_station() and dump_station.
392
 *
393
 * @filled: bitflag of flags from &enum station_info_flags
394 395 396
 * @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
397 398 399
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
400 401
 * @signal: signal strength of last received packet in dBm
 * @txrate: current unicast bitrate to this station
402 403
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
404 405 406 407
 * @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.
408
 */
409
struct station_info {
410 411 412 413
	u32 filled;
	u32 inactive_time;
	u32 rx_bytes;
	u32 tx_bytes;
414 415 416
	u16 llid;
	u16 plid;
	u8 plink_state;
417 418
	s8 signal;
	struct rate_info txrate;
419 420
	u32 rx_packets;
	u32 tx_packets;
421 422

	int generation;
423 424
};

425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444
/**
 * 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,
};

445 446 447 448 449 450 451
/**
 * 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().
 *
 * MPATH_INFO_FRAME_QLEN: @frame_qlen filled
452
 * MPATH_INFO_SN: @sn filled
453 454 455 456 457 458 459 460
 * 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
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
461
	MPATH_INFO_SN			= BIT(1),
462 463 464 465 466 467 468 469 470 471 472 473 474 475
	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
476
 * @sn: target sequence number
477 478 479 480 481
 * @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
482 483 484 485
 * @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.
486 487 488 489
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
490
	u32 sn;
491 492 493 494 495
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;
496 497

	int generation;
498 499
};

500 501 502 503 504 505 506 507 508 509 510
/**
 * 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)
511 512 513
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
514 515 516 517 518
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
519 520
	u8 *basic_rates;
	u8 basic_rates_len;
521
};
522

523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539
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;
540
	u8  dot11MeshHWMPRootMode;
541 542
};

543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560
/**
 * 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;
};

561 562 563
/* from net/wireless.h */
struct wiphy;

564 565 566
/* from net/ieee80211.h */
struct ieee80211_channel;

567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582
/**
 * 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.
583
 * @n_channels: total number of channels to scan
584 585
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
586
 * @wiphy: the wiphy this was for
587
 * @dev: the interface
588 589 590 591 592
 */
struct cfg80211_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
593
	const u8 *ie;
594
	size_t ie_len;
595 596 597

	/* internal */
	struct wiphy *wiphy;
598
	struct net_device *dev;
Johannes Berg's avatar
Johannes Berg committed
599
	bool aborted;
600 601 602

	/* keep last */
	struct ieee80211_channel *channels[0];
603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
};

/**
 * 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.
 *
 * @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
629 630 631
 *	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
632
 * @len_information_elements: total length of the information elements
633 634 635 636
 * @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
Johannes Berg's avatar
Johannes Berg committed
637
 * @signal: signal strength value (type depends on the wiphy's signal_type)
638
 * @free_priv: function pointer to free private data
639 640 641 642 643 644 645 646 647 648 649
 * @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;
650 651 652 653
	u8 *beacon_ies;
	size_t len_beacon_ies;
	u8 *proberesp_ies;
	size_t len_proberesp_ies;
654 655 656

	s32 signal;

657
	void (*free_priv)(struct cfg80211_bss *bss);
658 659 660
	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
};

661 662 663 664 665 666 667 668 669
/**
 * 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);


670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
/**
 * 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;
};

694 695 696 697 698
/**
 * struct cfg80211_auth_request - Authentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication.
Johannes Berg's avatar
Johannes Berg committed
699 700
 *
 * @bss: The BSS to authenticate with.
701 702 703
 * @auth_type: Authentication type (algorithm)
 * @ie: Extra IEs to add to Authentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
Johannes Berg's avatar
Johannes Berg committed
704 705 706
 * @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
707 708 709 710
 * @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).
711 712
 */
struct cfg80211_auth_request {
Johannes Berg's avatar
Johannes Berg committed
713
	struct cfg80211_bss *bss;
714 715
	const u8 *ie;
	size_t ie_len;
Johannes Berg's avatar
Johannes Berg committed
716
	enum nl80211_auth_type auth_type;
Johannes Berg's avatar
Johannes Berg committed
717 718
	const u8 *key;
	u8 key_len, key_idx;
719
	bool local_state_change;
720 721 722 723 724 725 726
};

/**
 * struct cfg80211_assoc_request - (Re)Association request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * (re)association.
Johannes Berg's avatar
Johannes Berg committed
727
 * @bss: The BSS to associate with.
728 729
 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
 * @ie_len: Length of ie buffer in octets
730
 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
731
 * @crypto: crypto settings
732
 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
733 734
 */
struct cfg80211_assoc_request {
Johannes Berg's avatar
Johannes Berg committed
735
	struct cfg80211_bss *bss;
736
	const u8 *ie, *prev_bssid;
737
	size_t ie_len;
738
	struct cfg80211_crypto_settings crypto;
Johannes Berg's avatar
Johannes Berg committed
739
	bool use_mfp;
740 741 742 743 744 745 746 747
};

/**
 * struct cfg80211_deauth_request - Deauthentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * deauthentication.
 *
Johannes Berg's avatar
Johannes Berg committed
748
 * @bss: the BSS to deauthenticate from
749 750
 * @ie: Extra IEs to add to Deauthentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
Johannes Berg's avatar
Johannes Berg committed
751
 * @reason_code: The reason code for the deauthentication
752 753
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Deauthentication frame is to be transmitted.
754 755
 */
struct cfg80211_deauth_request {
Johannes Berg's avatar
Johannes Berg committed
756
	struct cfg80211_bss *bss;
757 758
	const u8 *ie;
	size_t ie_len;
Johannes Berg's avatar
Johannes Berg committed
759
	u16 reason_code;
760
	bool local_state_change;
761 762 763 764 765 766 767 768
};

/**
 * struct cfg80211_disassoc_request - Disassociation request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * disassocation.
 *
Johannes Berg's avatar
Johannes Berg committed
769
 * @bss: the BSS to disassociate from
770 771
 * @ie: Extra IEs to add to Disassociation frame or %NULL
 * @ie_len: Length of ie buffer in octets
Johannes Berg's avatar
Johannes Berg committed
772
 * @reason_code: The reason code for the disassociation
773 774
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Disassociation frame is to be transmitted.
775 776
 */
struct cfg80211_disassoc_request {
Johannes Berg's avatar
Johannes Berg committed
777
	struct cfg80211_bss *bss;
778 779
	const u8 *ie;
	size_t ie_len;
Johannes Berg's avatar
Johannes Berg committed
780
	u16 reason_code;
781
	bool local_state_change;
782 783
};

Johannes Berg's avatar
Johannes Berg committed
784 785 786 787 788 789 790 791 792 793 794 795 796 797 798
/**
 * 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
799
 * @beacon_interval: beacon interval to use
Johannes Berg's avatar
Johannes Berg committed
800 801
 * @privacy: this is a protected network, keys will be configured
 *	after joining
Johannes Berg's avatar
Johannes Berg committed
802 803 804 805 806 807 808
 */
struct cfg80211_ibss_params {
	u8 *ssid;
	u8 *bssid;
	struct ieee80211_channel *channel;
	u8 *ie;
	u8 ssid_len, ie_len;
809
	u16 beacon_interval;
Johannes Berg's avatar
Johannes Berg committed
810
	bool channel_fixed;
Johannes Berg's avatar
Johannes Berg committed
811
	bool privacy;
Johannes Berg's avatar
Johannes Berg committed
812 813
};

814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830
/**
 * 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)
 * @assoc_ie: IEs for association request
 * @assoc_ie_len: Length of assoc_ie in octets
 * @privacy: indicates whether privacy-enabled APs should be used
 * @crypto: crypto settings
Johannes Berg's avatar
Johannes Berg committed
831 832 833
 * @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
834 835 836 837 838 839 840 841 842 843 844
 */
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;
Johannes Berg's avatar
Johannes Berg committed
845 846
	const u8 *key;
	u8 key_len, key_idx;
847 848
};

849 850 851 852 853 854 855 856 857 858 859 860
/**
 * enum wiphy_params_flags - set_wiphy_params bitfield values
 * 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
 */
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,
861
	WIPHY_PARAM_COVERAGE_CLASS	= 1 << 4,
862 863
};

864 865 866 867 868 869 870 871 872 873 874 875 876
/**
 * enum tx_power_setting - TX power adjustment
 *
 * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
 * @TX_POWER_LIMITED: limit TX power by the dbm parameter
 * @TX_POWER_FIXED: fix TX power to the dbm parameter
 */
enum tx_power_setting {
	TX_POWER_AUTOMATIC,
	TX_POWER_LIMITED,
	TX_POWER_FIXED,
};

Johannes Berg's avatar
Johannes Berg committed
877 878 879 880 881 882
/*
 * cfg80211_bitrate_mask - masks for bitrate control
 */
struct cfg80211_bitrate_mask {
	struct {
		u32 legacy;
883 884
		/* TODO: add support for masking MCS rates; e.g.: */
		/* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */
Johannes Berg's avatar
Johannes Berg committed
885 886
	} control[IEEE80211_NUM_BANDS];
};
Samuel Ortiz's avatar
Samuel Ortiz committed
887 888 889 890 891 892 893 894 895 896 897 898 899
/**
 * 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;
};
Johannes Berg's avatar
Johannes Berg committed
900

901 902 903 904 905 906 907 908 909
/**
 * 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.
 *
910 911 912 913
 * 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.
 *
Johannes Berg's avatar
Johannes Berg committed
914 915 916
 * @suspend: wiphy device needs to be suspended
 * @resume: wiphy device needs to be resumed
 *
Johannes Berg's avatar
Johannes Berg committed
917
 * @add_virtual_intf: create a new virtual interface with the given name,
918 919
 *	must set the struct wireless_dev's iftype. Beware: You must create
 *	the new netdev in the wiphy's network namespace!
920 921
 *
 * @del_virtual_intf: remove the virtual interface determined by ifindex.
922
 *
Johannes Berg's avatar
Johannes Berg committed
923 924
 * @change_virtual_intf: change type/configuration of virtual interface,
 *	keep the struct wireless_dev's iftype updated.
925
 *
926 927 928 929 930 931
 * @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
932 933
 *	after it returns. This function should return an error if it is
 *	not possible to retrieve the key, -ENOENT if it doesn't exist.
934 935
 *
 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
936
 *	and @key_index, return -ENOENT if the key doesn't exist.
937 938
 *
 * @set_default_key: set the default key on an interface
939
 *
940 941
 * @set_default_mgmt_key: set the default management frame key on an interface
 *
942 943 944 945 946 947
 * @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.
948 949 950 951 952 953
 *
 * @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.
954
 *
955 956 957 958 959 960
 * @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.
 *
961
 * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
962 963
 *
 * @change_bss: Modify parameters for a given BSS.
964 965
 *
 * @set_txq_params: Set TX queue parameters
966 967
 *
 * @set_channel: Set channel
968
 *
969 970 971 972
 * @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.
973 974 975 976 977
 *
 * @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
Johannes Berg's avatar
Johannes Berg committed
978
 *
979 980 981 982 983 984
 * @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.
 *
Johannes Berg's avatar
Johannes Berg committed
985 986 987 988
 * @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.
989 990 991 992 993
 *
 * @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.
994 995 996
 *
 * @set_tx_power: set the transmit power according to the parameters
 * @get_tx_power: store the current TX power into the dbm variable;
Johannes Berg's avatar
Johannes Berg committed
997 998 999 1000
 *	return 0 if successful
 *
 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
 *	functions to adjust rfkill hw state
1001
 *
1002 1003
 * @dump_survey: get site survey information.
 *
1004 1005 1006 1007 1008 1009 1010 1011
 * @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.
1012
 * @action: Transmit an action frame
1013
 *
1014
 * @testmode_cmd: run a test mode command
Samuel Ortiz's avatar
Samuel Ortiz committed
1015 1016 1017 1018 1019 1020
 *
 * @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.
1021
 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
Samuel Ortiz's avatar
Samuel Ortiz committed
1022
 *
1023 1024
 */
struct cfg80211_ops {
Johannes Berg's avatar
Johannes Berg committed
1025 1026 1027
	int	(*suspend)(struct wiphy *wiphy);
	int	(*resume)(struct wiphy *wiphy);

1028
	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
1029 1030
				    enum nl80211_iftype type, u32 *flags,
				    struct vif_params *params);
1031
	int	(*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
1032 1033
	int	(*change_virtual_intf)(struct wiphy *wiphy,
				       struct net_device *dev,
1034 1035
				       enum nl80211_iftype type, u32 *flags,
				       struct vif_params *params);
1036 1037

	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
1038
			   u8 key_index, const u8 *mac_addr,
1039 1040
			   struct key_params *params);
	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
1041
			   u8 key_index, const u8 *mac_addr, void *cookie,
1042 1043
			   void (*callback)(void *cookie, struct key_params*));
	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
1044
			   u8 key_index, const u8 *mac_addr);
1045 1046 1047
	int	(*set_default_key)(struct wiphy *wiphy,
				   struct net_device *netdev,
				   u8 key_index);
1048 1049 1050
	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
					struct net_device *netdev,
					u8 key_index);
1051 1052 1053 1054 1055 1056

	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);
1057 1058 1059 1060 1061 1062 1063 1064


	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);
1065
	int	(*get_station)(struct wiphy *wiphy, struct net_device *dev,
1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081
			       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);
1082 1083 1084 1085 1086 1087
	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);
1088 1089
	int	(*change_bss)(struct wiphy *wiphy, struct net_device *dev,
			      struct bss_parameters *params);
1090 1091 1092

	int	(*set_txq_params)(struct wiphy *wiphy,
				  struct ieee80211_txq_params *params);
1093 1094 1095

	int	(*set_channel)(struct wiphy *wiphy,
			       struct ieee80211_channel *chan,
Sujith's avatar
Sujith committed
1096
			       enum nl80211_channel_type channel_type);
1097

1098 1099
	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_scan_request *request);
1100 1101 1102 1103 1104 1105

	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,
Johannes Berg's avatar
Johannes Berg committed
1106 1107
			  struct cfg80211_deauth_request *req,
			  void *cookie);
1108
	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg's avatar
Johannes Berg committed
1109 1110
			    struct cfg80211_disassoc_request *req,
			    void *cookie);
Johannes Berg's avatar
Johannes Berg committed
1111

1112 1113 1114 1115 1116
	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);

Johannes Berg's avatar
Johannes Berg committed
1117 1118 1119
	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);
1120 1121

	int	(*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1122 1123 1124 1125

	int	(*set_tx_power)(struct wiphy *wiphy,
				enum tx_power_setting type, int dbm);
	int	(*get_tx_power)(struct wiphy *wiphy, int *dbm);
Johannes Berg's avatar
Johannes Berg committed
1126

1127 1128 1129
	int	(*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
				u8 *addr);

Johannes Berg's avatar
Johannes Berg committed
1130
	void	(*rfkill_poll)(struct wiphy *wiphy);
1131 1132 1133 1134

#ifdef CONFIG_NL80211_TESTMODE
	int	(*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
#endif
Johannes Berg's avatar
Johannes Berg committed
1135

Johannes Berg's avatar
Johannes Berg committed
1136 1137 1138 1139 1140
	int	(*set_bitrate_mask)(struct wiphy *wiphy,
				    struct net_device *dev,
				    const u8 *peer,
				    const struct cfg80211_bitrate_mask *mask);

1141 1142 1143
	int	(*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
			int idx, struct survey_info *info);

Samuel Ortiz's avatar
Samuel Ortiz committed
1144 1145 1146 1147 1148 1149
	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);

1150 1151 1152 1153 1154 1155 1156 1157 1158 1159
	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);

1160 1161 1162 1163 1164
	int	(*action)(struct wiphy *wiphy, struct net_device *dev,
			  struct ieee80211_channel *chan,
			  enum nl80211_channel_type channel_type,
			  const u8 *buf, size_t len, u64 *cookie);

Johannes Berg's avatar
Johannes Berg committed
1165 1166
	int	(*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
				  bool enabled, int timeout);
1167 1168 1169 1170

	int	(*set_cqm_rssi_config)(struct wiphy *wiphy,
				       struct net_device *dev,
				       s32 rssi_thold, u32 rssi_hyst);
1171 1172
};

Johannes Berg's avatar
Johannes Berg committed
1173 1174 1175 1176 1177 1178
/*
 * wireless hardware and networking interfaces structures
 * and registration/helper functions
 */

/**
1179 1180 1181
 * enum wiphy_flags - wiphy capability flags
 *
 * @WIPHY_FLAG_CUSTOM_REGULATORY:  tells us the driver for this device
Johannes Berg's avatar
Johannes Berg committed
1182 1183 1184 1185
 * 	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).
1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
 * @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
1198
 *	hints read the documenation for regulatory_hint_found_beacon()
1199 1200 1201 1202 1203 1204
 * @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
1205 1206 1207
 * @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
1208 1209 1210 1211 1212 1213 1214
 */
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),
1215 1216
	WIPHY_FLAG_4ADDR_AP		= BIT(5),
	WIPHY_FLAG_4ADDR_STATION	= BIT(6),
1217 1218
};

1219 1220 1221 1222
struct mac_address {
	u8 addr[ETH_ALEN];
};

1223 1224 1225 1226
/**
 * struct wiphy - wireless hardware description
 * @idx: the wiphy index assigned to this item
 * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
Johannes Berg's avatar
Johannes Berg committed
1227 1228 1229 1230 1231 1232 1233 1234
 * @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
1235 1236 1237 1238 1239
 * @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
1240
 * @net: the network namespace this wiphy currently lives in
1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252
 * @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.
Johannes Berg's avatar
Johannes Berg committed
1253 1254 1255 1256
 */
struct wiphy {
	/* assign these fields before you register the wiphy */

1257
	/* permanent MAC address(es) */
Johannes Berg's avatar
Johannes Berg committed
1258
	u8 perm_addr[ETH_ALEN];
1259 1260 1261 1262
	u8 addr_mask[ETH_ALEN];

	u16 n_addresses;
	struct mac_address *addresses;
Johannes Berg's avatar
Johannes Berg committed
1263 1264 1265 1266

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

1267
	u32 flags;
1268

Johannes Berg's avatar
Johannes Berg committed
1269 1270 1271 1272 1273 1274 1275 1276 1277
	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;

1278 1279 1280 1281
	u8 retry_short;
	u8 retry_long;
	u32 frag_threshold;
	u32 rts_threshold;
1282
	u8 coverage_class;
1283

1284 1285 1286
	char fw_version[ETHTOOL_BUSINFO_LEN];
	u32 hw_version;

Samuel Ortiz's avatar
Samuel Ortiz committed
1287 1288
	u8 max_num_pmkids;

Johannes Berg's avatar
Johannes Berg committed
1289 1290 1291 1292 1293
	/* 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. */
1294
	const void *privid;
Johannes Berg's avatar
Johannes Berg committed
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312

	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;

1313