cfg80211.h 34.1 KB
Newer Older
1 2 3 4 5
#ifndef __NET_CFG80211_H
#define __NET_CFG80211_H

#include <linux/netlink.h>
#include <linux/skbuff.h>
6
#include <linux/nl80211.h>
7 8 9 10
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
11
#include <net/genetlink.h>
Johannes Berg's avatar
Johannes Berg committed
12
/* remove once we remove the wext stuff */
13 14 15 16

/*
 * 802.11 configuration in-kernel interface
 *
17
 * Copyright 2006, 2007	Johannes Berg <johannes@sipsolutions.net>
18 19
 */

20 21 22 23 24 25 26 27 28 29
/**
 * struct vif_params - describes virtual interface parameters
 * @mesh_id: mesh ID to use
 * @mesh_id_len: length of the mesh ID
 */
struct vif_params {
       u8 *mesh_id;
       int mesh_id_len;
};

Andy Green's avatar
Andy Green committed
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 62 63 64 65 66
/* Radiotap header iteration
 *   implemented in net/wireless/radiotap.c
 *   docs in Documentation/networking/radiotap-headers.txt
 */
/**
 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
 * @rtheader: pointer to the radiotap header we are walking through
 * @max_length: length of radiotap header in cpu byte ordering
 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
 * @this_arg: pointer to current radiotap arg
 * @arg_index: internal next argument index
 * @arg: internal next argument pointer
 * @next_bitmap: internal pointer to next present u32
 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
 */

struct ieee80211_radiotap_iterator {
	struct ieee80211_radiotap_header *rtheader;
	int max_length;
	int this_arg_index;
	u8 *this_arg;

	int arg_index;
	u8 *arg;
	__le32 *next_bitmap;
	u32 bitmap_shifter;
};

extern int ieee80211_radiotap_iterator_init(
   struct ieee80211_radiotap_iterator *iterator,
   struct ieee80211_radiotap_header *radiotap_header,
   int max_length);

extern int ieee80211_radiotap_iterator_next(
   struct ieee80211_radiotap_iterator *iterator);


67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
 /**
 * 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;
};

87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106
/**
 * 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;
};

107 108 109 110 111 112 113 114 115 116 117
/**
 * enum station_flags - station flags
 *
 * Station capability flags. Note that these must be the bits
 * according to the nl80211 flags.
 *
 * @STATION_FLAG_CHANGED: station flags were changed
 * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
 * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
 *	with short preambles
 * @STATION_FLAG_WME: station is WME/QoS capable
118
 * @STATION_FLAG_MFP: station uses management frame protection
119 120 121 122 123 124
 */
enum station_flags {
	STATION_FLAG_CHANGED		= 1<<0,
	STATION_FLAG_AUTHORIZED		= 1<<NL80211_STA_FLAG_AUTHORIZED,
	STATION_FLAG_SHORT_PREAMBLE	= 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
	STATION_FLAG_WME		= 1<<NL80211_STA_FLAG_WME,
125
	STATION_FLAG_MFP		= 1<<NL80211_STA_FLAG_MFP,
126 127
};

128 129 130 131 132 133 134 135 136 137 138 139 140
/**
 * 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,
};

141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
/**
 * 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
 * @station_flags: station flags (see &enum station_flags)
 * @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;
	u32 station_flags;
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
161
	u8 plink_action;
162
	struct ieee80211_ht_cap *ht_capa;
163 164
};

165
/**
166
 * enum station_info_flags - station information flags
167
 *
168 169
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
170
 *
171 172 173 174 175 176
 * @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
177 178 179
 * @STATION_INFO_SIGNAL: @signal filled
 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
 *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
180 181
 * @STATION_INFO_RX_PACKETS: @rx_packets filled
 * @STATION_INFO_TX_PACKETS: @tx_packets filled
182
 */
183 184 185 186 187 188 189
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,
190 191
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
192 193
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
};

/**
 * 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;
225 226 227
};

/**
228
 * struct station_info - station information
229
 *
230
 * Station information filled by driver for get_station() and dump_station.
231
 *
232
 * @filled: bitflag of flags from &enum station_info_flags
233 234 235
 * @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
236 237 238
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
239 240
 * @signal: signal strength of last received packet in dBm
 * @txrate: current unicast bitrate to this station
241 242
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
243
 */
244
struct station_info {
245 246 247 248
	u32 filled;
	u32 inactive_time;
	u32 rx_bytes;
	u32 tx_bytes;
249 250 251
	u16 llid;
	u16 plid;
	u8 plink_state;
252 253
	s8 signal;
	struct rate_info txrate;
254 255
	u32 rx_packets;
	u32 tx_packets;
256 257
};

258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277
/**
 * 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,
};

278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
/**
 * 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
 * MPATH_INFO_DSN: @dsn 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
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
	MPATH_INFO_DSN			= BIT(1),
	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
 * @dsn: destination sequence number
 * @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
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
	u32 dsn;
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;
};

327 328 329 330 331 332 333 334 335 336 337
/**
 * 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)
338 339 340
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
341 342 343 344 345
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
346 347
	u8 *basic_rates;
	u8 basic_rates_len;
348
};
349

350 351 352
/**
 * enum environment_cap - Environment parsed from country IE
 * @ENVIRON_ANY: indicates country IE applies to both indoor and
353
 *	outdoor operation.
354 355 356 357 358 359 360 361 362 363
 * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
 * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
 */
enum environment_cap {
	ENVIRON_ANY,
	ENVIRON_INDOOR,
	ENVIRON_OUTDOOR,
};

/**
364
 * struct regulatory_request - used to keep track of regulatory requests
365
 *
366
 * @wiphy_idx: this is set if this request's initiator is
367 368 369 370 371
 * 	%REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
 * 	can be used by the wireless core to deal with conflicts
 * 	and potentially inform users of which devices specifically
 * 	cased the conflicts.
 * @initiator: indicates who sent this request, could be any of
372
 * 	of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
373 374 375 376 377 378 379 380 381 382 383 384
 * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
 * 	regulatory domain. We have a few special codes:
 * 	00 - World regulatory domain
 * 	99 - built by driver but a specific alpha2 cannot be determined
 * 	98 - result of an intersection between two regulatory domains
 * @intersect: indicates whether the wireless core should intersect
 * 	the requested regulatory domain with the presently set regulatory
 * 	domain.
 * @country_ie_checksum: checksum of the last processed and accepted
 * 	country IE
 * @country_ie_env: lets us know if the AP is telling us we are outdoor,
 * 	indoor, or if it doesn't matter
385
 * @list: used to insert into the reg_requests_list linked list
386 387
 */
struct regulatory_request {
388
	int wiphy_idx;
389
	enum nl80211_reg_initiator initiator;
390 391 392 393
	char alpha2[2];
	bool intersect;
	u32 country_ie_checksum;
	enum environment_cap country_ie_env;
394
	struct list_head list;
395 396
};

397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419
struct ieee80211_freq_range {
	u32 start_freq_khz;
	u32 end_freq_khz;
	u32 max_bandwidth_khz;
};

struct ieee80211_power_rule {
	u32 max_antenna_gain;
	u32 max_eirp;
};

struct ieee80211_reg_rule {
	struct ieee80211_freq_range freq_range;
	struct ieee80211_power_rule power_rule;
	u32 flags;
};

struct ieee80211_regdomain {
	u32 n_reg_rules;
	char alpha2[2];
	struct ieee80211_reg_rule reg_rules[];
};

420 421 422 423 424 425
#define MHZ_TO_KHZ(freq) ((freq) * 1000)
#define KHZ_TO_MHZ(freq) ((freq) / 1000)
#define DBI_TO_MBI(gain) ((gain) * 100)
#define MBI_TO_DBI(gain) ((gain) / 100)
#define DBM_TO_MBM(gain) ((gain) * 100)
#define MBM_TO_DBM(gain) ((gain) / 100)
426 427

#define REG_RULE(start, end, bw, gain, eirp, reg_flags) { \
428 429 430 431 432
	.freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
	.freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
	.freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
	.power_rule.max_antenna_gain = DBI_TO_MBI(gain), \
	.power_rule.max_eirp = DBM_TO_MBM(eirp), \
433 434 435
	.flags = reg_flags, \
	}

436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454
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;
};

455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472
/**
 * 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;
};

473 474 475
/* from net/wireless.h */
struct wiphy;

476 477 478
/* from net/ieee80211.h */
struct ieee80211_channel;

479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495
/**
 * 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.
 * @n_channels: number of channels for each band
496 497
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
498 499 500 501 502 503 504 505
 * @wiphy: the wiphy this was for
 * @ifidx: the interface index
 */
struct cfg80211_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	struct ieee80211_channel **channels;
	u32 n_channels;
506
	const u8 *ie;
507
	size_t ie_len;
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539

	/* internal */
	struct wiphy *wiphy;
	int ifidx;
};

/**
 * 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
 *	is no guarantee that these are well-formed!)
 * @len_information_elements: total length of the information elements
Johannes Berg's avatar
Johannes Berg committed
540
 * @signal: signal strength value (type depends on the wiphy's signal_type)
Kalle Valo's avatar
Kalle Valo committed
541
 * @hold: BSS should not expire
542
 * @free_priv: function pointer to free private data
543 544 545 546 547 548 549 550 551 552 553 554 555 556
 * @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;

	s32 signal;

557
	void (*free_priv)(struct cfg80211_bss *bss);
558 559 560
	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
};

561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659
/**
 * struct cfg80211_auth_request - Authentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication.
 * NOTE: This structure will likely change when more code from mac80211 is
 * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
 * Before using this in a driver that does not use mac80211, it would be better
 * to check the status of that work and better yet, volunteer to work on it.
 *
 * @chan: The channel to use or %NULL if not specified (auto-select based on
 *	scan results)
 * @peer_addr: The address of the peer STA (AP BSSID in infrastructure case);
 *	this field is required to be present; if the driver wants to help with
 *	BSS selection, it should use (yet to be added) MLME event to allow user
 *	space SME to be notified of roaming candidate, so that the SME can then
 *	use the authentication request with the recommended BSSID and whatever
 *	other data may be needed for authentication/association
 * @ssid: SSID or %NULL if not yet available
 * @ssid_len: Length of ssid in octets
 * @auth_type: Authentication type (algorithm)
 * @ie: Extra IEs to add to Authentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
 */
struct cfg80211_auth_request {
	struct ieee80211_channel *chan;
	u8 *peer_addr;
	const u8 *ssid;
	size_t ssid_len;
	enum nl80211_auth_type auth_type;
	const u8 *ie;
	size_t ie_len;
};

/**
 * struct cfg80211_assoc_request - (Re)Association request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * (re)association.
 * NOTE: This structure will likely change when more code from mac80211 is
 * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
 * Before using this in a driver that does not use mac80211, it would be better
 * to check the status of that work and better yet, volunteer to work on it.
 *
 * @chan: The channel to use or %NULL if not specified (auto-select based on
 *	scan results)
 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
 *	to be present and the STA must be in State 2 (authenticated) with the
 *	peer STA
 * @ssid: SSID
 * @ssid_len: Length of ssid in octets
 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
 * @ie_len: Length of ie buffer in octets
 */
struct cfg80211_assoc_request {
	struct ieee80211_channel *chan;
	u8 *peer_addr;
	const u8 *ssid;
	size_t ssid_len;
	const u8 *ie;
	size_t ie_len;
};

/**
 * struct cfg80211_deauth_request - Deauthentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * deauthentication.
 *
 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
 *	to be present and the STA must be authenticated with the peer STA
 * @ie: Extra IEs to add to Deauthentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
 */
struct cfg80211_deauth_request {
	u8 *peer_addr;
	u16 reason_code;
	const u8 *ie;
	size_t ie_len;
};

/**
 * struct cfg80211_disassoc_request - Disassociation request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * disassocation.
 *
 * @peer_addr: The address of the peer STA (AP BSSID); this field is required
 *	to be present and the STA must be associated with the peer STA
 * @ie: Extra IEs to add to Disassociation frame or %NULL
 * @ie_len: Length of ie buffer in octets
 */
struct cfg80211_disassoc_request {
	u8 *peer_addr;
	u16 reason_code;
	const u8 *ie;
	size_t ie_len;
};

Johannes Berg's avatar
Johannes Berg committed
660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684
/**
 * 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
 */
struct cfg80211_ibss_params {
	u8 *ssid;
	u8 *bssid;
	struct ieee80211_channel *channel;
	u8 *ie;
	u8 ssid_len, ie_len;
	bool channel_fixed;
};

685 686 687 688 689 690 691 692 693
/**
 * 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.
 *
694 695 696 697
 * 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
698 699 700
 * @suspend: wiphy device needs to be suspended
 * @resume: wiphy device needs to be resumed
 *
Johannes Berg's avatar
Johannes Berg committed
701 702
 * @add_virtual_intf: create a new virtual interface with the given name,
 *	must set the struct wireless_dev's iftype.
703 704
 *
 * @del_virtual_intf: remove the virtual interface determined by ifindex.
705
 *
Johannes Berg's avatar
Johannes Berg committed
706 707
 * @change_virtual_intf: change type/configuration of virtual interface,
 *	keep the struct wireless_dev's iftype updated.
708
 *
709 710 711 712 713 714 715 716 717 718 719 720
 * @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
 *	after it returns.
 *
 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
 *	and @key_index
 *
 * @set_default_key: set the default key on an interface
721
 *
722 723
 * @set_default_mgmt_key: set the default management frame key on an interface
 *
724 725 726 727 728 729
 * @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.
730 731 732 733 734 735
 *
 * @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.
736
 *
737 738 739 740 741 742
 * @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.
 *
743
 * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
744 745
 *
 * @change_bss: Modify parameters for a given BSS.
746 747
 *
 * @set_txq_params: Set TX queue parameters
748 749
 *
 * @set_channel: Set channel
750
 *
751 752 753 754
 * @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.
755 756 757 758 759
 *
 * @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
760 761 762 763 764
 *
 * @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.
765 766
 */
struct cfg80211_ops {
Johannes Berg's avatar
Johannes Berg committed
767 768 769
	int	(*suspend)(struct wiphy *wiphy);
	int	(*resume)(struct wiphy *wiphy);

770
	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
771 772
				    enum nl80211_iftype type, u32 *flags,
				    struct vif_params *params);
773
	int	(*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
774
	int	(*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
775 776
				       enum nl80211_iftype type, u32 *flags,
				       struct vif_params *params);
777 778 779 780 781 782 783 784 785 786 787 788

	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, u8 *mac_addr,
			   struct key_params *params);
	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, u8 *mac_addr, void *cookie,
			   void (*callback)(void *cookie, struct key_params*));
	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, u8 *mac_addr);
	int	(*set_default_key)(struct wiphy *wiphy,
				   struct net_device *netdev,
				   u8 key_index);
789 790 791
	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
					struct net_device *netdev,
					u8 key_index);
792 793 794 795 796 797

	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);
798 799 800 801 802 803 804 805


	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);
806
	int	(*get_station)(struct wiphy *wiphy, struct net_device *dev,
807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822
			       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);
823 824 825 826 827 828
	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);
829 830
	int	(*change_bss)(struct wiphy *wiphy, struct net_device *dev,
			      struct bss_parameters *params);
831 832 833

	int	(*set_txq_params)(struct wiphy *wiphy,
				  struct ieee80211_txq_params *params);
834 835 836

	int	(*set_channel)(struct wiphy *wiphy,
			       struct ieee80211_channel *chan,
Sujith's avatar
Sujith committed
837
			       enum nl80211_channel_type channel_type);
838

839 840
	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_scan_request *request);
841 842 843 844 845 846 847 848 849

	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,
			  struct cfg80211_deauth_request *req);
	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
			    struct cfg80211_disassoc_request *req);
Johannes Berg's avatar
Johannes Berg committed
850 851 852 853

	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);
854 855
};

Johannes Berg's avatar
Johannes Berg committed
856 857 858 859
/* temporary wext handlers */
int cfg80211_wext_giwname(struct net_device *dev,
			  struct iw_request_info *info,
			  char *name, char *extra);
860 861 862 863
int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra);
int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra);
864 865 866 867 868 869
int cfg80211_wext_siwscan(struct net_device *dev,
			  struct iw_request_info *info,
			  union iwreq_data *wrqu, char *extra);
int cfg80211_wext_giwscan(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_point *data, char *extra);
870 871 872
int cfg80211_wext_siwmlme(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_point *data, char *extra);
873 874 875
int cfg80211_wext_giwrange(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra);
Johannes Berg's avatar
Johannes Berg committed
876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897
int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
			       struct iw_request_info *info,
			       struct iw_freq *freq, char *extra);
int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
			       struct iw_request_info *info,
			       struct iw_freq *freq, char *extra);
int cfg80211_ibss_wext_siwessid(struct net_device *dev,
				struct iw_request_info *info,
				struct iw_point *data, char *ssid);
int cfg80211_ibss_wext_giwessid(struct net_device *dev,
				struct iw_request_info *info,
				struct iw_point *data, char *ssid);
int cfg80211_ibss_wext_siwap(struct net_device *dev,
			     struct iw_request_info *info,
			     struct sockaddr *ap_addr, char *extra);
int cfg80211_ibss_wext_giwap(struct net_device *dev,
			     struct iw_request_info *info,
			     struct sockaddr *ap_addr, char *extra);

/* wext helper for now (to be removed) */
struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
					     struct iw_freq *freq);
898 899 900 901 902 903 904 905 906 907 908 909 910 911 912

/**
 * cfg80211_scan_done - notify that scan finished
 *
 * @request: the corresponding scan request
 * @aborted: set to true if the scan was aborted for any reason,
 *	userspace will be notified of that
 */
void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);

/**
 * cfg80211_inform_bss - inform cfg80211 of a new BSS
 *
 * @wiphy: the wiphy reporting the BSS
 * @bss: the found BSS
Johannes Berg's avatar
Johannes Berg committed
913
 * @signal: the signal strength, type depends on the wiphy's signal_type
914 915 916 917 918 919 920 921 922
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
 */
struct cfg80211_bss*
cfg80211_inform_bss_frame(struct wiphy *wiphy,
			  struct ieee80211_channel *channel,
			  struct ieee80211_mgmt *mgmt, size_t len,
Johannes Berg's avatar
Johannes Berg committed
923
			  s32 signal, gfp_t gfp);
924

925 926 927 928 929 930 931 932
struct cfg80211_bss*
cfg80211_inform_bss(struct wiphy *wiphy,
		    struct ieee80211_channel *channel,
		    const u8 *bssid,
		    u64 timestamp, u16 capability, u16 beacon_interval,
		    const u8 *ie, size_t ielen,
		    s32 signal, gfp_t gfp);

933 934 935
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
				      struct ieee80211_channel *channel,
				      const u8 *bssid,
936 937 938 939 940 941 942 943 944 945 946
				      const u8 *ssid, size_t ssid_len,
				      u16 capa_mask, u16 capa_val);
static inline struct cfg80211_bss *
cfg80211_get_ibss(struct wiphy *wiphy,
		  struct ieee80211_channel *channel,
		  const u8 *ssid, size_t ssid_len)
{
	return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
				WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
}

947 948 949 950 951
struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
				       struct ieee80211_channel *channel,
				       const u8 *meshid, size_t meshidlen,
				       const u8 *meshcfg);
void cfg80211_put_bss(struct cfg80211_bss *bss);
952 953 954 955 956 957 958 959 960 961 962
/**
 * cfg80211_unlink_bss - unlink BSS from internal data structures
 * @wiphy: the wiphy
 * @bss: the bss to remove
 *
 * This function removes the given BSS from the internal data structures
 * thereby making it no longer show up in scan results etc. Use this
 * function when you detect a BSS is gone. Normally BSSes will also time
 * out, so it is not necessary to use this function at all.
 */
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
Johannes Berg's avatar
Johannes Berg committed
963

964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986
/**
 * cfg80211_send_rx_auth - notification of processed authentication
 * @dev: network device
 * @buf: authentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever an authentication has been processed in
 * station mode.
 */
void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);

/**
 * cfg80211_send_rx_assoc - notification of processed association
 * @dev: network device
 * @buf: (re)association response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a (re)association response has been
 * processed in station mode.
 */
void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);

/**
987
 * cfg80211_send_deauth - notification of processed deauthentication
988 989 990 991 992
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever deauthentication has been processed in
993 994
 * station mode. This includes both received deauthentication frames and
 * locally generated ones.
995
 */
996
void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
997 998

/**
999
 * cfg80211_send_disassoc - notification of processed disassociation
1000 1001 1002 1003 1004
 * @dev: network device
 * @buf: disassociation response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever disassociation has been processed in
1005 1006
 * station mode. This includes both received disassociation frames and locally
 * generated ones.
1007
 */
1008
void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
1009

Kalle Valo's avatar
Kalle Valo committed
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
/**
 * cfg80211_hold_bss - exclude bss from expiration
 * @bss: bss which should not expire
 *
 * In a case when the BSS is not updated but it shouldn't expire this
 * function can be used to mark the BSS to be excluded from expiration.
 */
void cfg80211_hold_bss(struct cfg80211_bss *bss);

/**
 * cfg80211_unhold_bss - remove expiration exception from the BSS
 * @bss: bss which can expire again
 *
 * This function marks the BSS to be expirable again.
 */
void cfg80211_unhold_bss(struct cfg80211_bss *bss);

1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
/**
 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
 * @dev: network device
 * @addr: The source MAC address of the frame
 * @key_type: The key type that the received frame used
 * @key_id: Key identifier (0..3)
 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
 *
 * This function is called whenever the local MAC detects a MIC failure in a
 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
 * primitive.
 */
void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
				  enum nl80211_key_type key_type, int key_id,
				  const u8 *tsc);

Johannes Berg's avatar
Johannes Berg committed
1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
/**
 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
 *
 * @dev: network device
 * @bssid: the BSSID of the IBSS joined
 * @gfp: allocation flags
 *
 * This function notifies cfg80211 that the device joined an IBSS or
 * switched to a different BSSID. Before this function can be called,
 * either a beacon has to have been received from the IBSS, or one of
 * the cfg80211_inform_bss{,_frame} functions must have been called
 * with the locally generated beacon -- this guarantees that there is
 * always a scan result for this IBSS. cfg80211 will handle the rest.
 */
void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);

1059
#endif /* __NET_CFG80211_H */