cfg80211.h 165 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
#include <linux/bug.h>
17 18
#include <linux/netlink.h>
#include <linux/skbuff.h>
19
#include <linux/nl80211.h>
20 21
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
22
#include <linux/net.h>
Johannes Berg's avatar
Johannes Berg committed
23 24
#include <net/regulatory.h>

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
/**
 * DOC: Introduction
 *
 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
 * userspace and drivers, and offers some utility functionality associated
 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
 * by all modern wireless drivers in Linux, so that they offer a consistent
 * API through nl80211. For backward compatibility, cfg80211 also offers
 * wireless extensions to userspace, but hides them from drivers completely.
 *
 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
 * use restrictions.
 */


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

62 63
struct wiphy;

64
/*
Johannes Berg's avatar
Johannes Berg committed
65 66 67 68 69 70 71 72
 * wireless hardware capability structures
 */

/**
 * enum ieee80211_band - supported frequency bands
 *
 * The bands are assigned this way because the supported
 * bitrates differ in these bands.
73
 *
Johannes Berg's avatar
Johannes Berg committed
74 75
 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
76
 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
Johannes Berg's avatar
Johannes Berg committed
77
 * @IEEE80211_NUM_BANDS: number of defined bands
78
 */
Johannes Berg's avatar
Johannes Berg committed
79
enum ieee80211_band {
80 81
	IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
	IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,
82
	IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ,
Johannes Berg's avatar
Johannes Berg committed
83 84 85 86

	/* keep last */
	IEEE80211_NUM_BANDS
};
87

88
/**
Johannes Berg's avatar
Johannes Berg committed
89 90 91 92 93
 * enum ieee80211_channel_flags - channel flags
 *
 * Channel flags set by the regulatory control code.
 *
 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
94 95
 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes
 * 	sending probe requests or beaconing.
Johannes Berg's avatar
Johannes Berg committed
96
 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
97
 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
Johannes Berg's avatar
Johannes Berg committed
98
 * 	is not permitted.
99
 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
Johannes Berg's avatar
Johannes Berg committed
100
 * 	is not permitted.
101
 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
102 103 104 105 106 107 108 109 110 111
 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
 *	this flag indicates that an 80 MHz channel cannot use this
 *	channel as the control or any of the secondary channels.
 *	This may be due to the driver or due to regulatory bandwidth
 *	restrictions.
 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
 *	this flag indicates that an 160 MHz channel cannot use this
 *	channel as the control or any of the secondary channels.
 *	This may be due to the driver or due to regulatory bandwidth
 *	restrictions.
112
 */
Johannes Berg's avatar
Johannes Berg committed
113 114
enum ieee80211_channel_flags {
	IEEE80211_CHAN_DISABLED		= 1<<0,
115 116
	IEEE80211_CHAN_NO_IR		= 1<<1,
	/* hole at 1<<2 */
Johannes Berg's avatar
Johannes Berg committed
117
	IEEE80211_CHAN_RADAR		= 1<<3,
118 119
	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
120
	IEEE80211_CHAN_NO_OFDM		= 1<<6,
121 122
	IEEE80211_CHAN_NO_80MHZ		= 1<<7,
	IEEE80211_CHAN_NO_160MHZ	= 1<<8,
123 124
};

125
#define IEEE80211_CHAN_NO_HT40 \
126
	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
127

128 129 130
#define IEEE80211_DFS_MIN_CAC_TIME_MS		60000
#define IEEE80211_DFS_MIN_NOP_TIME_MS		(30 * 60 * 1000)

Johannes Berg's avatar
Johannes Berg committed
131 132 133 134 135 136 137 138 139 140 141 142 143 144
/**
 * 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)
145
 * @max_reg_power: maximum regulatory transmission power (in dBm)
Johannes Berg's avatar
Johannes Berg committed
146 147
 * @beacon_found: helper to regulatory code to indicate when a beacon
 *	has been found on this channel. Use regulatory_hint_found_beacon()
148
 *	to enable this, this is useful only on 5 GHz band.
Johannes Berg's avatar
Johannes Berg committed
149 150
 * @orig_mag: internal use
 * @orig_mpwr: internal use
151 152 153
 * @dfs_state: current state of this channel. Only relevant if radar is required
 *	on this channel.
 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
154
 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
Andy Green's avatar
Andy Green committed
155
 */
Johannes Berg's avatar
Johannes Berg committed
156 157 158 159 160 161 162
struct ieee80211_channel {
	enum ieee80211_band band;
	u16 center_freq;
	u16 hw_value;
	u32 flags;
	int max_antenna_gain;
	int max_power;
163
	int max_reg_power;
Johannes Berg's avatar
Johannes Berg committed
164 165 166
	bool beacon_found;
	u32 orig_flags;
	int orig_mag, orig_mpwr;
167 168
	enum nl80211_dfs_state dfs_state;
	unsigned long dfs_state_entered;
169
	unsigned int dfs_cac_ms;
Johannes Berg's avatar
Johannes Berg committed
170 171
};

Andy Green's avatar
Andy Green committed
172
/**
Johannes Berg's avatar
Johannes Berg committed
173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
 * 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.
192 193
 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
Andy Green's avatar
Andy Green committed
194
 */
Johannes Berg's avatar
Johannes Berg committed
195 196 197 198 199 200
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,
201 202
	IEEE80211_RATE_SUPPORTS_5MHZ	= 1<<5,
	IEEE80211_RATE_SUPPORTS_10MHZ	= 1<<6,
Johannes Berg's avatar
Johannes Berg committed
203
};
Andy Green's avatar
Andy Green committed
204

Johannes Berg's avatar
Johannes Berg committed
205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
/**
 * 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
224

Johannes Berg's avatar
Johannes Berg committed
225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
/**
 * 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
243 244
};

245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260
/**
 * struct ieee80211_sta_vht_cap - STA's VHT capabilities
 *
 * This structure describes most essential parameters needed
 * to describe 802.11ac VHT capabilities for an STA.
 *
 * @vht_supported: is VHT supported by the STA
 * @cap: VHT capabilities map as described in 802.11ac spec
 * @vht_mcs: Supported VHT MCS rates
 */
struct ieee80211_sta_vht_cap {
	bool vht_supported;
	u32 cap; /* use IEEE80211_VHT_CAP_ */
	struct ieee80211_vht_mcs_info vht_mcs;
};

Johannes Berg's avatar
Johannes Berg committed
261 262 263 264 265 266 267 268 269 270 271 272 273 274
/**
 * 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
Johannes Berg's avatar
Johannes Berg committed
275
 * @ht_cap: HT capabilities in this band
276
 * @vht_cap: VHT capabilities in this band
Johannes Berg's avatar
Johannes Berg committed
277 278 279 280 281 282 283 284
 */
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;
285
	struct ieee80211_sta_vht_cap vht_cap;
Johannes Berg's avatar
Johannes Berg committed
286
};
Andy Green's avatar
Andy Green committed
287

Johannes Berg's avatar
Johannes Berg committed
288 289 290
/*
 * Wireless hardware/device configuration structures and methods
 */
Andy Green's avatar
Andy Green committed
291

292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
/**
 * DOC: Actions and configuration
 *
 * Each wireless device and each virtual interface offer a set of configuration
 * operations and other actions that are invoked by userspace. Each of these
 * actions is described in the operations structure, and the parameters these
 * operations use are described separately.
 *
 * Additionally, some operations are asynchronous and expect to get status
 * information via some functions that drivers need to call.
 *
 * Scanning and BSS list handling with its associated functionality is described
 * in a separate chapter.
 */

Johannes Berg's avatar
Johannes Berg committed
307 308
/**
 * struct vif_params - describes virtual interface parameters
309
 * @use_4addr: use 4-address frames
310 311 312
 * @macaddr: address to use for this virtual interface. This will only
 * 	be used for non-netdevice interfaces. If this parameter is set
 * 	to zero address the driver may determine the address as needed.
Johannes Berg's avatar
Johannes Berg committed
313 314
 */
struct vif_params {
315
       int use_4addr;
316
       u8 macaddr[ETH_ALEN];
Johannes Berg's avatar
Johannes Berg committed
317
};
Andy Green's avatar
Andy Green committed
318

Johannes Berg's avatar
Johannes Berg committed
319
/**
320 321 322 323 324 325 326 327 328 329
 * 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.
Johannes Berg's avatar
Johannes Berg committed
330
 * @seq_len: length of @seq.
331 332 333 334 335 336 337 338 339
 */
struct key_params {
	u8 *key;
	u8 *seq;
	int key_len;
	int seq_len;
	u32 cipher;
};

340 341 342
/**
 * struct cfg80211_chan_def - channel definition
 * @chan: the (control) channel
343 344 345 346
 * @width: channel width
 * @center_freq1: center frequency of first segment
 * @center_freq2: center frequency of second segment
 *	(only with 80+80 MHz)
347 348 349
 */
struct cfg80211_chan_def {
	struct ieee80211_channel *chan;
350 351 352
	enum nl80211_chan_width width;
	u32 center_freq1;
	u32 center_freq2;
353 354
};

355 356 357 358
/**
 * cfg80211_get_chandef_type - return old channel type from chandef
 * @chandef: the channel definition
 *
359
 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given
360 361
 * chandef, which must have a bandwidth allowing this conversion.
 */
362 363 364
static inline enum nl80211_channel_type
cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef)
{
365 366 367 368 369 370 371 372 373 374 375 376 377
	switch (chandef->width) {
	case NL80211_CHAN_WIDTH_20_NOHT:
		return NL80211_CHAN_NO_HT;
	case NL80211_CHAN_WIDTH_20:
		return NL80211_CHAN_HT20;
	case NL80211_CHAN_WIDTH_40:
		if (chandef->center_freq1 > chandef->chan->center_freq)
			return NL80211_CHAN_HT40PLUS;
		return NL80211_CHAN_HT40MINUS;
	default:
		WARN_ON(1);
		return NL80211_CHAN_NO_HT;
	}
378 379
}

380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
/**
 * cfg80211_chandef_create - create channel definition using channel type
 * @chandef: the channel definition struct to fill
 * @channel: the control channel
 * @chantype: the channel type
 *
 * Given a channel type, create a channel definition.
 */
void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
			     struct ieee80211_channel *channel,
			     enum nl80211_channel_type chantype);

/**
 * cfg80211_chandef_identical - check if two channel definitions are identical
 * @chandef1: first channel definition
 * @chandef2: second channel definition
 *
397
 * Return: %true if the channels defined by the channel definitions are
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
 * identical, %false otherwise.
 */
static inline bool
cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
			   const struct cfg80211_chan_def *chandef2)
{
	return (chandef1->chan == chandef2->chan &&
		chandef1->width == chandef2->width &&
		chandef1->center_freq1 == chandef2->center_freq1 &&
		chandef1->center_freq2 == chandef2->center_freq2);
}

/**
 * cfg80211_chandef_compatible - check if two channel definitions are compatible
 * @chandef1: first channel definition
 * @chandef2: second channel definition
 *
415
 * Return: %NULL if the given channel definitions are incompatible,
416 417 418 419 420 421
 * chandef1 or chandef2 otherwise.
 */
const struct cfg80211_chan_def *
cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
			    const struct cfg80211_chan_def *chandef2);

422 423 424
/**
 * cfg80211_chandef_valid - check if a channel definition is valid
 * @chandef: the channel definition to check
425
 * Return: %true if the channel definition is valid. %false otherwise.
426 427 428 429 430 431 432
 */
bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);

/**
 * cfg80211_chandef_usable - check if secondary channels can be used
 * @wiphy: the wiphy to validate against
 * @chandef: the channel definition to check
433 434
 * @prohibited_flags: the regulatory channel flags that must not be set
 * Return: %true if secondary channels are usable. %false otherwise.
435 436 437 438 439
 */
bool cfg80211_chandef_usable(struct wiphy *wiphy,
			     const struct cfg80211_chan_def *chandef,
			     u32 prohibited_flags);

440 441 442 443 444 445 446 447 448
/**
 * cfg80211_chandef_dfs_required - checks if radar detection is required
 * @wiphy: the wiphy to validate against
 * @chandef: the channel definition to check
 * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
 */
int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
				  const struct cfg80211_chan_def *chandef);

449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472
/**
 * ieee80211_chandef_rate_flags - returns rate flags for a channel
 *
 * In some channel types, not all rates may be used - for example CCK
 * rates may not be used in 5/10 MHz channels.
 *
 * @chandef: channel definition for the channel
 *
 * Returns: rate flags which apply for this channel
 */
static inline enum ieee80211_rate_flags
ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
{
	switch (chandef->width) {
	case NL80211_CHAN_WIDTH_5:
		return IEEE80211_RATE_SUPPORTS_5MHZ;
	case NL80211_CHAN_WIDTH_10:
		return IEEE80211_RATE_SUPPORTS_10MHZ;
	default:
		break;
	}
	return 0;
}

473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499
/**
 * ieee80211_chandef_max_power - maximum transmission power for the chandef
 *
 * In some regulations, the transmit power may depend on the configured channel
 * bandwidth which may be defined as dBm/MHz. This function returns the actual
 * max_power for non-standard (20 MHz) channels.
 *
 * @chandef: channel definition for the channel
 *
 * Returns: maximum allowed transmission power in dBm for the chandef
 */
static inline int
ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef)
{
	switch (chandef->width) {
	case NL80211_CHAN_WIDTH_5:
		return min(chandef->chan->max_reg_power - 6,
			   chandef->chan->max_power);
	case NL80211_CHAN_WIDTH_10:
		return min(chandef->chan->max_reg_power - 3,
			   chandef->chan->max_power);
	default:
		break;
	}
	return chandef->chan->max_power;
}

500 501 502
/**
 * enum survey_info_flags - survey information flags
 *
Johannes Berg's avatar
Johannes Berg committed
503
 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
504
 * @SURVEY_INFO_IN_USE: channel is currently being used
505 506 507 508 509
 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
Johannes Berg's avatar
Johannes Berg committed
510
 *
511 512 513 514 515
 * 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,
516
	SURVEY_INFO_IN_USE = 1<<1,
517 518 519 520 521
	SURVEY_INFO_CHANNEL_TIME = 1<<2,
	SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
	SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
	SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
	SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
522 523 524 525 526 527 528 529
};

/**
 * 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
530
 *	optional
531 532 533 534 535
 * @channel_time: amount of time in ms the radio spent on the channel
 * @channel_time_busy: amount of time the primary channel was sensed busy
 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
 * @channel_time_rx: amount of time the radio spent receiving data
 * @channel_time_tx: amount of time the radio spent transmitting data
536
 *
Johannes Berg's avatar
Johannes Berg committed
537 538
 * Used by dump_survey() to report back per-channel survey information.
 *
539 540 541 542 543
 * This structure can later be expanded with things like
 * channel duty cycle etc.
 */
struct survey_info {
	struct ieee80211_channel *channel;
544 545 546 547 548
	u64 channel_time;
	u64 channel_time_busy;
	u64 channel_time_ext_busy;
	u64 channel_time_rx;
	u64 channel_time_tx;
549 550 551 552
	u32 filled;
	s8 noise;
};

553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582
/**
 * struct cfg80211_crypto_settings - Crypto settings
 * @wpa_versions: indicates which, if any, WPA versions are enabled
 *	(from enum nl80211_wpa_versions)
 * @cipher_group: group key cipher suite (or 0 if unset)
 * @n_ciphers_pairwise: number of AP supported unicast ciphers
 * @ciphers_pairwise: unicast key cipher suites
 * @n_akm_suites: number of AKM suites
 * @akm_suites: AKM suites
 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
 *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
 *	required to assume that the port is unauthorized until authorized by
 *	user space. Otherwise, port is marked authorized by default.
 * @control_port_ethertype: the control port protocol that should be
 *	allowed through even on unauthorized ports
 * @control_port_no_encrypt: TRUE to prevent encryption of control port
 *	protocol frames.
 */
struct cfg80211_crypto_settings {
	u32 wpa_versions;
	u32 cipher_group;
	int n_ciphers_pairwise;
	u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
	int n_akm_suites;
	u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
	bool control_port;
	__be16 control_port_ethertype;
	bool control_port_no_encrypt;
};

583
/**
584
 * struct cfg80211_beacon_data - beacon data
585
 * @head: head portion of beacon (before TIM IE)
586
 *	or %NULL if not changed
587
 * @tail: tail portion of beacon (after TIM IE)
588
 *	or %NULL if not changed
589 590
 * @head_len: length of @head
 * @tail_len: length of @tail
591 592 593 594 595 596 597 598
 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
 * @beacon_ies_len: length of beacon_ies in octets
 * @proberesp_ies: extra information element(s) to add into Probe Response
 *	frames or %NULL
 * @proberesp_ies_len: length of proberesp_ies in octets
 * @assocresp_ies: extra information element(s) to add into (Re)Association
 *	Response frames or %NULL
 * @assocresp_ies_len: length of assocresp_ies in octets
599 600
 * @probe_resp_len: length of probe response template (@probe_resp)
 * @probe_resp: probe response template (AP mode only)
601
 */
602 603 604 605 606 607 608 609 610 611 612 613 614 615
struct cfg80211_beacon_data {
	const u8 *head, *tail;
	const u8 *beacon_ies;
	const u8 *proberesp_ies;
	const u8 *assocresp_ies;
	const u8 *probe_resp;

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

616 617 618 619
struct mac_address {
	u8 addr[ETH_ALEN];
};

620 621 622 623
/**
 * struct cfg80211_acl_data - Access control list data
 *
 * @acl_policy: ACL policy to be applied on the station's
Johannes Berg's avatar
Johannes Berg committed
624
 *	entry specified by mac_addr
625 626 627 628 629 630 631 632 633 634 635
 * @n_acl_entries: Number of MAC address entries passed
 * @mac_addrs: List of MAC addresses of stations to be used for ACL
 */
struct cfg80211_acl_data {
	enum nl80211_acl_policy acl_policy;
	int n_acl_entries;

	/* Keep it last */
	struct mac_address mac_addrs[];
};

636 637 638 639 640
/**
 * struct cfg80211_ap_settings - AP configuration
 *
 * Used to configure an AP interface.
 *
641
 * @chandef: defines the channel to use
642 643 644 645 646 647 648 649 650 651
 * @beacon: beacon data
 * @beacon_interval: beacon interval
 * @dtim_period: DTIM period
 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
 *	user space)
 * @ssid_len: length of @ssid
 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
 * @crypto: crypto settings
 * @privacy: the BSS uses privacy
 * @auth_type: Authentication type (algorithm)
652
 * @inactivity_timeout: time in seconds to determine station's inactivity.
653 654
 * @p2p_ctwindow: P2P CT Window
 * @p2p_opp_ps: P2P opportunistic PS
655 656
 * @acl: ACL configuration used by the drivers which has support for
 *	MAC address based access control
657
 * @radar_required: set if radar detection is required
658 659
 */
struct cfg80211_ap_settings {
660
	struct cfg80211_chan_def chandef;
661

662 663 664
	struct cfg80211_beacon_data beacon;

	int beacon_interval, dtim_period;
665 666 667
	const u8 *ssid;
	size_t ssid_len;
	enum nl80211_hidden_ssid hidden_ssid;
668 669 670
	struct cfg80211_crypto_settings crypto;
	bool privacy;
	enum nl80211_auth_type auth_type;
671
	int inactivity_timeout;
672 673
	u8 p2p_ctwindow;
	bool p2p_opp_ps;
674
	const struct cfg80211_acl_data *acl;
675
	bool radar_required;
676 677
};

678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701
/**
 * struct cfg80211_csa_settings - channel switch settings
 *
 * Used for channel switch
 *
 * @chandef: defines the channel to use after the switch
 * @beacon_csa: beacon data while performing the switch
 * @counter_offset_beacon: offset for the counter within the beacon (tail)
 * @counter_offset_presp: offset for the counter within the probe response
 * @beacon_after: beacon data to be used on the new channel
 * @radar_required: whether radar detection is required on the new channel
 * @block_tx: whether transmissions should be blocked while changing
 * @count: number of beacons until switch
 */
struct cfg80211_csa_settings {
	struct cfg80211_chan_def chandef;
	struct cfg80211_beacon_data beacon_csa;
	u16 counter_offset_beacon, counter_offset_presp;
	struct cfg80211_beacon_data beacon_after;
	bool radar_required;
	bool block_tx;
	u8 count;
};

702 703 704
/**
 * enum station_parameters_apply_mask - station parameter values to apply
 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
705
 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
706
 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state
707 708 709 710 711 712
 *
 * Not all station parameters have in-band "no change" signalling,
 * for those that don't these flags will are used.
 */
enum station_parameters_apply_mask {
	STATION_PARAM_APPLY_UAPSD = BIT(0),
713
	STATION_PARAM_APPLY_CAPABILITY = BIT(1),
714
	STATION_PARAM_APPLY_PLINK_STATE = BIT(2),
715 716
};

717 718 719 720 721 722 723 724 725
/**
 * 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
726 727 728 729
 * @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_...))
730 731
 * @listen_interval: listen interval or -1 for no change
 * @aid: AID or zero for no change
Johannes Berg's avatar
Johannes Berg committed
732
 * @plink_action: plink action to take
733
 * @plink_state: set the peer link state for a station
Johannes Berg's avatar
Johannes Berg committed
734
 * @ht_capa: HT capabilities of station
735
 * @vht_capa: VHT capabilities of station
736 737 738 739
 * @uapsd_queues: bitmap of queues configured for uapsd. same format
 *	as the AC bitmap in the QoS info field
 * @max_sp: max Service Period. same format as the MAX_SP in the
 *	QoS info field (but already shifted down)
740 741 742
 * @sta_modify_mask: bitmap indicating which parameters changed
 *	(for those that don't have a natural "no change" value),
 *	see &enum station_parameters_apply_mask
743 744
 * @local_pm: local link-specific mesh power save mode (no change when set
 *	to unknown)
745 746 747
 * @capability: station capability
 * @ext_capab: extended capabilities of the station
 * @ext_capab_len: number of extended capabilities
748 749 750 751
 * @supported_channels: supported channels in IEEE 802.11 format
 * @supported_channels_len: number of supported channels
 * @supported_oper_classes: supported oper classes in IEEE 802.11 format
 * @supported_oper_classes_len: number of supported operating classes
752 753
 * @opmode_notif: operating mode field from Operating Mode Notification
 * @opmode_notif_used: information if operating mode field is used
754 755
 */
struct station_parameters {
756
	const u8 *supported_rates;
757
	struct net_device *vlan;
758
	u32 sta_flags_mask, sta_flags_set;
759
	u32 sta_modify_mask;
760 761 762
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
763
	u8 plink_action;
764
	u8 plink_state;
765 766
	const struct ieee80211_ht_cap *ht_capa;
	const struct ieee80211_vht_cap *vht_capa;
767 768
	u8 uapsd_queues;
	u8 max_sp;
769
	enum nl80211_mesh_power_mode local_pm;
770
	u16 capability;
771
	const u8 *ext_capab;
772
	u8 ext_capab_len;
773 774 775 776
	const u8 *supported_channels;
	u8 supported_channels_len;
	const u8 *supported_oper_classes;
	u8 supported_oper_classes_len;
777 778
	u8 opmode_notif;
	bool opmode_notif_used;
779 780
};

781 782 783 784 785 786 787 788 789 790 791 792 793
/**
 * enum cfg80211_station_type - the type of station being modified
 * @CFG80211_STA_AP_CLIENT: client of an AP interface
 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has
 *	the AP MLME in the device
 * @CFG80211_STA_AP_STA: AP station on managed interface
 * @CFG80211_STA_IBSS: IBSS station
 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry
 *	while TDLS setup is in progress, it moves out of this state when
 *	being marked authorized; use this only if TDLS with external setup is
 *	supported/used)
 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active
 *	entry that is operating, has been marked authorized by userspace)
794 795
 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed)
 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed)
796 797 798 799 800 801 802 803
 */
enum cfg80211_station_type {
	CFG80211_STA_AP_CLIENT,
	CFG80211_STA_AP_MLME_CLIENT,
	CFG80211_STA_AP_STA,
	CFG80211_STA_IBSS,
	CFG80211_STA_TDLS_PEER_SETUP,
	CFG80211_STA_TDLS_PEER_ACTIVE,
804 805
	CFG80211_STA_MESH_PEER_KERNEL,
	CFG80211_STA_MESH_PEER_USER,
806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823
};

/**
 * cfg80211_check_station_change - validate parameter changes
 * @wiphy: the wiphy this operates on
 * @params: the new parameters for a station
 * @statype: the type of station being modified
 *
 * Utility function for the @change_station driver method. Call this function
 * with the appropriate station type looking up the station (and checking that
 * it exists). It will verify whether the station change is acceptable, and if
 * not will return an error code. Note that it may modify the parameters for
 * backward compatibility reasons, so don't use them before calling this.
 */
int cfg80211_check_station_change(struct wiphy *wiphy,
				  struct station_parameters *params,
				  enum cfg80211_station_type statype);

824
/**
825
 * enum station_info_flags - station information flags
826
 *
827 828
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
829
 *
830 831 832
 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
 * @STATION_INFO_RX_BYTES: @rx_bytes filled
 * @STATION_INFO_TX_BYTES: @tx_bytes filled
Johannes Berg's avatar
Johannes Berg committed
833 834
 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
835 836 837
 * @STATION_INFO_LLID: @llid filled
 * @STATION_INFO_PLID: @plid filled
 * @STATION_INFO_PLINK_STATE: @plink_state filled
838
 * @STATION_INFO_SIGNAL: @signal filled
839
 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
840
 *	(tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
841 842
 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
843 844
 * @STATION_INFO_TX_RETRIES: @tx_retries filled
 * @STATION_INFO_TX_FAILED: @tx_failed filled
845
 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
846
 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
847
 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
848
 * @STATION_INFO_BSS_PARAM: @bss_param filled
849
 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
850
 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
851
 * @STATION_INFO_STA_FLAGS: @sta_flags filled
852
 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
853
 * @STATION_INFO_T_OFFSET: @t_offset filled
854 855 856
 * @STATION_INFO_LOCAL_PM: @local_pm filled
 * @STATION_INFO_PEER_PM: @peer_pm filled
 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
857 858
 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
859
 */
860 861 862 863 864 865 866
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,
867 868
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
869 870
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
871 872
	STATION_INFO_TX_RETRIES		= 1<<10,
	STATION_INFO_TX_FAILED		= 1<<11,
873
	STATION_INFO_RX_DROP_MISC	= 1<<12,
874
	STATION_INFO_SIGNAL_AVG		= 1<<13,
875
	STATION_INFO_RX_BITRATE		= 1<<14,
876
	STATION_INFO_BSS_PARAM          = 1<<15,
877
	STATION_INFO_CONNECTED_TIME	= 1<<16,
878
	STATION_INFO_ASSOC_REQ_IES	= 1<<17,
879
	STATION_INFO_STA_FLAGS		= 1<<18,
880 881
	STATION_INFO_BEACON_LOSS_COUNT	= 1<<19,
	STATION_INFO_T_OFFSET		= 1<<20,
882 883 884
	STATION_INFO_LOCAL_PM		= 1<<21,
	STATION_INFO_PEER_PM		= 1<<22,
	STATION_INFO_NONPEER_PM		= 1<<23,
885 886
	STATION_INFO_RX_BYTES64		= 1<<24,
	STATION_INFO_TX_BYTES64		= 1<<25,
887 888
	STATION_INFO_CHAIN_SIGNAL	= 1<<26,
	STATION_INFO_CHAIN_SIGNAL_AVG	= 1<<27,
889 890 891 892 893 894 895 896
};

/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
897 898 899 900 901 902
 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
903
 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
904
 * @RATE_INFO_FLAGS_60G: 60GHz MCS
905 906
 */
enum rate_info_flags {
907 908 909 910 911 912 913 914
	RATE_INFO_FLAGS_MCS			= BIT(0),
	RATE_INFO_FLAGS_VHT_MCS			= BIT(1),
	RATE_INFO_FLAGS_40_MHZ_WIDTH		= BIT(2),
	RATE_INFO_FLAGS_80_MHZ_WIDTH		= BIT(3),
	RATE_INFO_FLAGS_80P80_MHZ_WIDTH		= BIT(4),
	RATE_INFO_FLAGS_160_MHZ_WIDTH		= BIT(5),
	RATE_INFO_FLAGS_SHORT_GI		= BIT(6),
	RATE_INFO_FLAGS_60G			= BIT(7),
915 916 917 918 919 920 921 922 923 924
};

/**
 * 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
925
 * @nss: number of streams (VHT only)
926 927 928 929 930
 */
struct rate_info {
	u8 flags;
	u8 mcs;
	u16 legacy;
931
	u8 nss;
932 933
};

934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964
/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
 */
enum bss_param_flags {
	BSS_PARAM_FLAGS_CTS_PROT	= 1<<0,
	BSS_PARAM_FLAGS_SHORT_PREAMBLE	= 1<<1,
	BSS_PARAM_FLAGS_SHORT_SLOT_TIME	= 1<<2,
};

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

965 966
#define IEEE80211_MAX_CHAINS	4

967
/**
968
 * struct station_info - station information
969
 *
970
 * Station information filled by driver for get_station() and dump_station.
971
 *
972
 * @filled: bitflag of flags from &enum station_info_flags
973
 * @connected_time: time(in secs) since a station is last connected
974 975 976
 * @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
977 978 979
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
980 981 982 983
 * @signal: The signal strength, type depends on the wiphy's signal_type.
 *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
 *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
984 985 986
 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
 * @chain_signal: per-chain signal strength of last received packet in dBm
 * @chain_signal_avg: per-chain signal strength average in dBm
987 988
 * @txrate: current unicast bitrate from this station
 * @rxrate: current unicast bitrate to this station
989 990
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
991 992
 * @tx_retries: cumulative retry counts
 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
993
 * @rx_dropped_misc:  Dropped for un-specified reason.
994
 * @bss_param: current BSS parameters
995 996 997 998
 * @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.
999 1000 1001 1002 1003
 * @assoc_req_ies: IEs from (Re)Association Request.
 *	This is used only when in AP mode with drivers that do not use
 *	user space MLME/SME implementation. The information is provided for
 *	the cfg80211_new_sta() calls to notify user space of the IEs.
 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
1004
 * @sta_flags: station flags mask & values
1005
 * @beacon_loss_count: Number of times beacon loss event has triggered.
1006
 * @t_offset: Time offset of the station relative to this host.
1007 1008 1009
 * @local_pm: local mesh STA power save mode
 * @peer_pm: peer mesh STA power save mode
 * @nonpeer_pm: non-peer mesh STA power save mode
1010
 */
1011
struct station_info {
1012
	u32 filled;
1013
	u32 connected_time;
1014
	u32 inactive_time;
1015 1016
	u64 rx_bytes;
	u64 tx_bytes;
1017 1018 1019
	u16 llid;
	u16 plid;
	u8 plink_state;
1020
	s8 signal;
1021
	s8 signal_avg;
1022 1023 1024 1025 1026

	u8 chains;
	s8 chain_signal[IEEE80211_MAX_CHAINS];
	s8 chain_signal_avg[IEEE80211_MAX_CHAINS];

1027
	struct rate_info txrate;
1028
	struct rate_info rxrate;
1029 1030
	u32 rx_packets;
	u32 tx_packets;
1031 1032
	u32 tx_retries;
	u32 tx_failed;
1033
	u32 rx_dropped_misc;
1034
	struct sta_bss_parameters bss_param;
1035
	struct nl80211_sta_flag_update sta_flags;
1036 1037

	int generation;
1038 1039 1040

	const u8 *assoc_req_ies;
	size_t assoc_req_ies_len;
1041

1042
	u32 beacon_loss_count;
1043
	s64 t_offset;
1044 1045 1046
	enum nl80211_mesh_power_mode local_pm;
	enum nl80211_mesh_power_mode peer_pm;
	enum nl80211_mesh_power_mode nonpeer_pm;
1047

1048 1049 1050 1051
	/*
	 * Note: Add a new enum station_info_flags value for each new field and
	 * use it to check which fields are initialized.
	 */
1052 1053
};

1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064
/**
 * 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
1065
 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
1066 1067 1068 1069 1070 1071 1072
 */
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,
1073
	MONITOR_FLAG_ACTIVE		= 1<<NL80211_MNTR_FLAG_ACTIVE,
1074 1075
};

1076 1077 1078 1079 1080 1081
/**
 * 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().
 *
Johannes Berg's avatar
Johannes Berg committed
1082 1083 1084 1085 1086 1087 1088
 * @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
1089 1090 1091
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
1092
	MPATH_INFO_SN			= BIT(1),
1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
	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
1107
 * @sn: target sequence number
1108 1109 1110 1111 1112
 * @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
1113 1114 1115 1116
 * @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.
1117 1118 1119 1120
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
1121
	u32 sn;
1122 1123 1124 1125 1126
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;
1127 1128

	int generation;
1129 1130
};

1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
/**
 * 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)
1142 1143 1144
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
1145
 * @ap_isolate: do not forward packets between connected stations
1146 1147
 * @ht_opmode: HT Operation mode
 * 	(u16 = opmode, -1 = do not change)
1148 1149
 * @p2p_ctwindow: P2P CT Window (-1 = no change)
 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change)
1150 1151 1152 1153 1154
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
1155 1156
	u8 *basic_rates;
	u8 basic_rates_len;
1157
	int ap_isolate;
1158
	int ht_opmode;
1159
	s8 p2p_ctwindow, p2p_opp_ps;
1160
};
1161

1162
/**
1163 1164 1165
 * struct mesh_config - 802.11s mesh configuration
 *
 * These parameters can be changed while the mesh is active.
1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
 *
 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used
 *	by the Mesh Peering Open message
 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units
 *	used by the Mesh Peering Open message
 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by
 *	the mesh peering management to close a mesh peering
 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this
 *	mesh interface
 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can
 *	be sent to establish a new peer link instance in a mesh
 * @dot11MeshTTL: the value of TTL field set at a source mesh STA
 * @element_ttl: the value of TTL field set at a mesh STA for path selection
 *	elements
 * @auto_open_plinks: whether we should automatically open peer links when we
 *	detect compatible mesh peers
 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to
 *	synchronize to for 11s default synchronization method
 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ
 *	that an originator mesh STA can send to a particular path target
 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds
 * @min_discovery_timeout: the minimum length of time to wait until giving up on
 *	a path discovery in milliseconds
 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs
 *	receiving a PREQ shall consider the forwarding information from the
 *	root to be valid. (TU = time unit)
 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during
 *	which a mesh STA can send only one action frame containing a PREQ
 *	element
 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during
 *	which a mesh STA can send only one Action frame containing a PERR
 *	element
 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that
 *	it takes for an HWMP information element to propagate across the mesh
 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA
 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root
 *	announcements are transmitted
 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh
 *	station has access to a broader network beyond the MBSS. (This is
 *	missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true
 *	only means that the station will announce others it's a mesh gate, but
 *	not necessarily using the gate announcement protocol. Still keeping the
 *	same nomenclature to be in sync with the spec)
 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding
 *	entity (default is TRUE - forwarding entity)
 * @rssi_threshold: the threshold for average signal strength of candidate
 *	station to establish a peer link
 * @ht_opmode: mesh HT protection mode
1214 1215 1216 1217 1218 1219 1220
 *
 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs
 *	receiving a proactive PREQ shall consider the forwarding information to
 *	the root mesh STA to be valid.
 *
 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive
 *	PREQs are transmitted.
1221 1222 1223
 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs)
 *	during which a mesh STA can send only one Action frame containing
 *	a PREQ element for root path confirmation.
1224 1225 1226 1227
 * @power_mode: The default mesh power save mode which will be the initial
 *	setting for new peer links.
 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
 *	after transmitting its beacon.
1228 1229 1230
 * @plink_timeout: If no tx activity is seen from a STA we've established
 *	peering with for longer than this time (in seconds), then remove it
 *	from the STA's list of peers.  Default is 30 minutes.
1231
 */
1232 1233 1234 1235 1236
struct mesh_config {
	u16 dot11MeshRetryTimeout;
	u16 dot11MeshConfirmTimeout;
	u16 dot11MeshHoldingTimeout;
	u16 dot11MeshMaxPeerLinks;
1237 1238 1239
	u8 dot11MeshMaxRetries;
	u8 dot11MeshTTL;
	u8 element_ttl;
1240
	bool auto_open_plinks;
1241
	u32 dot11MeshNbrOffsetMaxNeighbor;
1242
	u8 dot11MeshHWMPmaxPREQretries;
1243 1244 1245 1246
	u32 path_refresh_time;
	u16 min_discovery_timeout;
	u32 dot11MeshHWMPactivePathTimeout;
	u16 dot11MeshHWMPpreqMinInterval;
1247
	u16 dot11MeshHWMPperrMinInterval;
1248
	u16 dot11MeshHWMPnetDiameterTraversalTime;