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1 #ifndef __NET_CFG80211_H
2 #define __NET_CFG80211_H
3 /*
4 * 802.11 device and configuration interface
5 *
6 * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/netdevice.h>
14 #include <linux/debugfs.h>
15 #include <linux/list.h>
16 #include <linux/netlink.h>
17 #include <linux/skbuff.h>
18 #include <linux/nl80211.h>
19 #include <linux/if_ether.h>
20 #include <linux/ieee80211.h>
21 #include <net/regulatory.h>
22
23 /* remove once we remove the wext stuff */
24 #include <net/iw_handler.h>
25 #include <linux/wireless.h>
26
27
28 /*
29 * wireless hardware capability structures
30 */
31
32 /**
33 * enum ieee80211_band - supported frequency bands
34 *
35 * The bands are assigned this way because the supported
36 * bitrates differ in these bands.
37 *
38 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
39 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
40 */
41 enum ieee80211_band {
42 IEEE80211_BAND_2GHZ,
43 IEEE80211_BAND_5GHZ,
44
45 /* keep last */
46 IEEE80211_NUM_BANDS
47 };
48
49 /**
50 * enum ieee80211_channel_flags - channel flags
51 *
52 * Channel flags set by the regulatory control code.
53 *
54 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
55 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
56 * on this channel.
57 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
58 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
59 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
60 * is not permitted.
61 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
62 * is not permitted.
63 */
64 enum ieee80211_channel_flags {
65 IEEE80211_CHAN_DISABLED = 1<<0,
66 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
67 IEEE80211_CHAN_NO_IBSS = 1<<2,
68 IEEE80211_CHAN_RADAR = 1<<3,
69 IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
70 IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
71 };
72
73 #define IEEE80211_CHAN_NO_HT40 \
74 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
75
76 /**
77 * struct ieee80211_channel - channel definition
78 *
79 * This structure describes a single channel for use
80 * with cfg80211.
81 *
82 * @center_freq: center frequency in MHz
83 * @max_bandwidth: maximum allowed bandwidth for this channel, in MHz
84 * @hw_value: hardware-specific value for the channel
85 * @flags: channel flags from &enum ieee80211_channel_flags.
86 * @orig_flags: channel flags at registration time, used by regulatory
87 * code to support devices with additional restrictions
88 * @band: band this channel belongs to.
89 * @max_antenna_gain: maximum antenna gain in dBi
90 * @max_power: maximum transmission power (in dBm)
91 * @beacon_found: helper to regulatory code to indicate when a beacon
92 * has been found on this channel. Use regulatory_hint_found_beacon()
93 * to enable this, this is is useful only on 5 GHz band.
94 * @orig_mag: internal use
95 * @orig_mpwr: internal use
96 */
97 struct ieee80211_channel {
98 enum ieee80211_band band;
99 u16 center_freq;
100 u8 max_bandwidth;
101 u16 hw_value;
102 u32 flags;
103 int max_antenna_gain;
104 int max_power;
105 bool beacon_found;
106 u32 orig_flags;
107 int orig_mag, orig_mpwr;
108 };
109
110 /**
111 * enum ieee80211_rate_flags - rate flags
112 *
113 * Hardware/specification flags for rates. These are structured
114 * in a way that allows using the same bitrate structure for
115 * different bands/PHY modes.
116 *
117 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
118 * preamble on this bitrate; only relevant in 2.4GHz band and
119 * with CCK rates.
120 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
121 * when used with 802.11a (on the 5 GHz band); filled by the
122 * core code when registering the wiphy.
123 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
124 * when used with 802.11b (on the 2.4 GHz band); filled by the
125 * core code when registering the wiphy.
126 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
127 * when used with 802.11g (on the 2.4 GHz band); filled by the
128 * core code when registering the wiphy.
129 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
130 */
131 enum ieee80211_rate_flags {
132 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
133 IEEE80211_RATE_MANDATORY_A = 1<<1,
134 IEEE80211_RATE_MANDATORY_B = 1<<2,
135 IEEE80211_RATE_MANDATORY_G = 1<<3,
136 IEEE80211_RATE_ERP_G = 1<<4,
137 };
138
139 /**
140 * struct ieee80211_rate - bitrate definition
141 *
142 * This structure describes a bitrate that an 802.11 PHY can
143 * operate with. The two values @hw_value and @hw_value_short
144 * are only for driver use when pointers to this structure are
145 * passed around.
146 *
147 * @flags: rate-specific flags
148 * @bitrate: bitrate in units of 100 Kbps
149 * @hw_value: driver/hardware value for this rate
150 * @hw_value_short: driver/hardware value for this rate when
151 * short preamble is used
152 */
153 struct ieee80211_rate {
154 u32 flags;
155 u16 bitrate;
156 u16 hw_value, hw_value_short;
157 };
158
159 /**
160 * struct ieee80211_sta_ht_cap - STA's HT capabilities
161 *
162 * This structure describes most essential parameters needed
163 * to describe 802.11n HT capabilities for an STA.
164 *
165 * @ht_supported: is HT supported by the STA
166 * @cap: HT capabilities map as described in 802.11n spec
167 * @ampdu_factor: Maximum A-MPDU length factor
168 * @ampdu_density: Minimum A-MPDU spacing
169 * @mcs: Supported MCS rates
170 */
171 struct ieee80211_sta_ht_cap {
172 u16 cap; /* use IEEE80211_HT_CAP_ */
173 bool ht_supported;
174 u8 ampdu_factor;
175 u8 ampdu_density;
176 struct ieee80211_mcs_info mcs;
177 };
178
179 /**
180 * struct ieee80211_supported_band - frequency band definition
181 *
182 * This structure describes a frequency band a wiphy
183 * is able to operate in.
184 *
185 * @channels: Array of channels the hardware can operate in
186 * in this band.
187 * @band: the band this structure represents
188 * @n_channels: Number of channels in @channels
189 * @bitrates: Array of bitrates the hardware can operate with
190 * in this band. Must be sorted to give a valid "supported
191 * rates" IE, i.e. CCK rates first, then OFDM.
192 * @n_bitrates: Number of bitrates in @bitrates
193 */
194 struct ieee80211_supported_band {
195 struct ieee80211_channel *channels;
196 struct ieee80211_rate *bitrates;
197 enum ieee80211_band band;
198 int n_channels;
199 int n_bitrates;
200 struct ieee80211_sta_ht_cap ht_cap;
201 };
202
203 /*
204 * Wireless hardware/device configuration structures and methods
205 */
206
207 /**
208 * struct vif_params - describes virtual interface parameters
209 * @mesh_id: mesh ID to use
210 * @mesh_id_len: length of the mesh ID
211 */
212 struct vif_params {
213 u8 *mesh_id;
214 int mesh_id_len;
215 };
216
217 /**
218 * struct key_params - key information
219 *
220 * Information about a key
221 *
222 * @key: key material
223 * @key_len: length of key material
224 * @cipher: cipher suite selector
225 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
226 * with the get_key() callback, must be in little endian,
227 * length given by @seq_len.
228 */
229 struct key_params {
230 u8 *key;
231 u8 *seq;
232 int key_len;
233 int seq_len;
234 u32 cipher;
235 };
236
237 /**
238 * struct beacon_parameters - beacon parameters
239 *
240 * Used to configure the beacon for an interface.
241 *
242 * @head: head portion of beacon (before TIM IE)
243 * or %NULL if not changed
244 * @tail: tail portion of beacon (after TIM IE)
245 * or %NULL if not changed
246 * @interval: beacon interval or zero if not changed
247 * @dtim_period: DTIM period or zero if not changed
248 * @head_len: length of @head
249 * @tail_len: length of @tail
250 */
251 struct beacon_parameters {
252 u8 *head, *tail;
253 int interval, dtim_period;
254 int head_len, tail_len;
255 };
256
257 /**
258 * enum plink_action - actions to perform in mesh peers
259 *
260 * @PLINK_ACTION_INVALID: action 0 is reserved
261 * @PLINK_ACTION_OPEN: start mesh peer link establishment
262 * @PLINK_ACTION_BLOCL: block traffic from this mesh peer
263 */
264 enum plink_actions {
265 PLINK_ACTION_INVALID,
266 PLINK_ACTION_OPEN,
267 PLINK_ACTION_BLOCK,
268 };
269
270 /**
271 * struct station_parameters - station parameters
272 *
273 * Used to change and create a new station.
274 *
275 * @vlan: vlan interface station should belong to
276 * @supported_rates: supported rates in IEEE 802.11 format
277 * (or NULL for no change)
278 * @supported_rates_len: number of supported rates
279 * @sta_flags_mask: station flags that changed
280 * (bitmask of BIT(NL80211_STA_FLAG_...))
281 * @sta_flags_set: station flags values
282 * (bitmask of BIT(NL80211_STA_FLAG_...))
283 * @listen_interval: listen interval or -1 for no change
284 * @aid: AID or zero for no change
285 */
286 struct station_parameters {
287 u8 *supported_rates;
288 struct net_device *vlan;
289 u32 sta_flags_mask, sta_flags_set;
290 int listen_interval;
291 u16 aid;
292 u8 supported_rates_len;
293 u8 plink_action;
294 struct ieee80211_ht_cap *ht_capa;
295 };
296
297 /**
298 * enum station_info_flags - station information flags
299 *
300 * Used by the driver to indicate which info in &struct station_info
301 * it has filled in during get_station() or dump_station().
302 *
303 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
304 * @STATION_INFO_RX_BYTES: @rx_bytes filled
305 * @STATION_INFO_TX_BYTES: @tx_bytes filled
306 * @STATION_INFO_LLID: @llid filled
307 * @STATION_INFO_PLID: @plid filled
308 * @STATION_INFO_PLINK_STATE: @plink_state filled
309 * @STATION_INFO_SIGNAL: @signal filled
310 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
311 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
312 * @STATION_INFO_RX_PACKETS: @rx_packets filled
313 * @STATION_INFO_TX_PACKETS: @tx_packets filled
314 */
315 enum station_info_flags {
316 STATION_INFO_INACTIVE_TIME = 1<<0,
317 STATION_INFO_RX_BYTES = 1<<1,
318 STATION_INFO_TX_BYTES = 1<<2,
319 STATION_INFO_LLID = 1<<3,
320 STATION_INFO_PLID = 1<<4,
321 STATION_INFO_PLINK_STATE = 1<<5,
322 STATION_INFO_SIGNAL = 1<<6,
323 STATION_INFO_TX_BITRATE = 1<<7,
324 STATION_INFO_RX_PACKETS = 1<<8,
325 STATION_INFO_TX_PACKETS = 1<<9,
326 };
327
328 /**
329 * enum station_info_rate_flags - bitrate info flags
330 *
331 * Used by the driver to indicate the specific rate transmission
332 * type for 802.11n transmissions.
333 *
334 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
335 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
336 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
337 */
338 enum rate_info_flags {
339 RATE_INFO_FLAGS_MCS = 1<<0,
340 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1,
341 RATE_INFO_FLAGS_SHORT_GI = 1<<2,
342 };
343
344 /**
345 * struct rate_info - bitrate information
346 *
347 * Information about a receiving or transmitting bitrate
348 *
349 * @flags: bitflag of flags from &enum rate_info_flags
350 * @mcs: mcs index if struct describes a 802.11n bitrate
351 * @legacy: bitrate in 100kbit/s for 802.11abg
352 */
353 struct rate_info {
354 u8 flags;
355 u8 mcs;
356 u16 legacy;
357 };
358
359 /**
360 * struct station_info - station information
361 *
362 * Station information filled by driver for get_station() and dump_station.
363 *
364 * @filled: bitflag of flags from &enum station_info_flags
365 * @inactive_time: time since last station activity (tx/rx) in milliseconds
366 * @rx_bytes: bytes received from this station
367 * @tx_bytes: bytes transmitted to this station
368 * @llid: mesh local link id
369 * @plid: mesh peer link id
370 * @plink_state: mesh peer link state
371 * @signal: signal strength of last received packet in dBm
372 * @txrate: current unicast bitrate to this station
373 * @rx_packets: packets received from this station
374 * @tx_packets: packets transmitted to this station
375 */
376 struct station_info {
377 u32 filled;
378 u32 inactive_time;
379 u32 rx_bytes;
380 u32 tx_bytes;
381 u16 llid;
382 u16 plid;
383 u8 plink_state;
384 s8 signal;
385 struct rate_info txrate;
386 u32 rx_packets;
387 u32 tx_packets;
388 };
389
390 /**
391 * enum monitor_flags - monitor flags
392 *
393 * Monitor interface configuration flags. Note that these must be the bits
394 * according to the nl80211 flags.
395 *
396 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
397 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
398 * @MONITOR_FLAG_CONTROL: pass control frames
399 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
400 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
401 */
402 enum monitor_flags {
403 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
404 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
405 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
406 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
407 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
408 };
409
410 /**
411 * enum mpath_info_flags - mesh path information flags
412 *
413 * Used by the driver to indicate which info in &struct mpath_info it has filled
414 * in during get_station() or dump_station().
415 *
416 * MPATH_INFO_FRAME_QLEN: @frame_qlen filled
417 * MPATH_INFO_DSN: @dsn filled
418 * MPATH_INFO_METRIC: @metric filled
419 * MPATH_INFO_EXPTIME: @exptime filled
420 * MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
421 * MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
422 * MPATH_INFO_FLAGS: @flags filled
423 */
424 enum mpath_info_flags {
425 MPATH_INFO_FRAME_QLEN = BIT(0),
426 MPATH_INFO_DSN = BIT(1),
427 MPATH_INFO_METRIC = BIT(2),
428 MPATH_INFO_EXPTIME = BIT(3),
429 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
430 MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
431 MPATH_INFO_FLAGS = BIT(6),
432 };
433
434 /**
435 * struct mpath_info - mesh path information
436 *
437 * Mesh path information filled by driver for get_mpath() and dump_mpath().
438 *
439 * @filled: bitfield of flags from &enum mpath_info_flags
440 * @frame_qlen: number of queued frames for this destination
441 * @dsn: destination sequence number
442 * @metric: metric (cost) of this mesh path
443 * @exptime: expiration time for the mesh path from now, in msecs
444 * @flags: mesh path flags
445 * @discovery_timeout: total mesh path discovery timeout, in msecs
446 * @discovery_retries: mesh path discovery retries
447 */
448 struct mpath_info {
449 u32 filled;
450 u32 frame_qlen;
451 u32 dsn;
452 u32 metric;
453 u32 exptime;
454 u32 discovery_timeout;
455 u8 discovery_retries;
456 u8 flags;
457 };
458
459 /**
460 * struct bss_parameters - BSS parameters
461 *
462 * Used to change BSS parameters (mainly for AP mode).
463 *
464 * @use_cts_prot: Whether to use CTS protection
465 * (0 = no, 1 = yes, -1 = do not change)
466 * @use_short_preamble: Whether the use of short preambles is allowed
467 * (0 = no, 1 = yes, -1 = do not change)
468 * @use_short_slot_time: Whether the use of short slot time is allowed
469 * (0 = no, 1 = yes, -1 = do not change)
470 * @basic_rates: basic rates in IEEE 802.11 format
471 * (or NULL for no change)
472 * @basic_rates_len: number of basic rates
473 */
474 struct bss_parameters {
475 int use_cts_prot;
476 int use_short_preamble;
477 int use_short_slot_time;
478 u8 *basic_rates;
479 u8 basic_rates_len;
480 };
481
482 struct mesh_config {
483 /* Timeouts in ms */
484 /* Mesh plink management parameters */
485 u16 dot11MeshRetryTimeout;
486 u16 dot11MeshConfirmTimeout;
487 u16 dot11MeshHoldingTimeout;
488 u16 dot11MeshMaxPeerLinks;
489 u8 dot11MeshMaxRetries;
490 u8 dot11MeshTTL;
491 bool auto_open_plinks;
492 /* HWMP parameters */
493 u8 dot11MeshHWMPmaxPREQretries;
494 u32 path_refresh_time;
495 u16 min_discovery_timeout;
496 u32 dot11MeshHWMPactivePathTimeout;
497 u16 dot11MeshHWMPpreqMinInterval;
498 u16 dot11MeshHWMPnetDiameterTraversalTime;
499 };
500
501 /**
502 * struct ieee80211_txq_params - TX queue parameters
503 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
504 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
505 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
506 * 1..32767]
507 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
508 * 1..32767]
509 * @aifs: Arbitration interframe space [0..255]
510 */
511 struct ieee80211_txq_params {
512 enum nl80211_txq_q queue;
513 u16 txop;
514 u16 cwmin;
515 u16 cwmax;
516 u8 aifs;
517 };
518
519 /* from net/wireless.h */
520 struct wiphy;
521
522 /* from net/ieee80211.h */
523 struct ieee80211_channel;
524
525 /**
526 * struct cfg80211_ssid - SSID description
527 * @ssid: the SSID
528 * @ssid_len: length of the ssid
529 */
530 struct cfg80211_ssid {
531 u8 ssid[IEEE80211_MAX_SSID_LEN];
532 u8 ssid_len;
533 };
534
535 /**
536 * struct cfg80211_scan_request - scan request description
537 *
538 * @ssids: SSIDs to scan for (active scan only)
539 * @n_ssids: number of SSIDs
540 * @channels: channels to scan on.
541 * @n_channels: total number of channels to scan
542 * @ie: optional information element(s) to add into Probe Request or %NULL
543 * @ie_len: length of ie in octets
544 * @wiphy: the wiphy this was for
545 * @dev: the interface
546 */
547 struct cfg80211_scan_request {
548 struct cfg80211_ssid *ssids;
549 int n_ssids;
550 struct ieee80211_channel **channels;
551 u32 n_channels;
552 const u8 *ie;
553 size_t ie_len;
554
555 /* internal */
556 struct wiphy *wiphy;
557 struct net_device *dev;
558 bool aborted;
559 };
560
561 /**
562 * enum cfg80211_signal_type - signal type
563 *
564 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
565 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
566 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
567 */
568 enum cfg80211_signal_type {
569 CFG80211_SIGNAL_TYPE_NONE,
570 CFG80211_SIGNAL_TYPE_MBM,
571 CFG80211_SIGNAL_TYPE_UNSPEC,
572 };
573
574 /**
575 * struct cfg80211_bss - BSS description
576 *
577 * This structure describes a BSS (which may also be a mesh network)
578 * for use in scan results and similar.
579 *
580 * @bssid: BSSID of the BSS
581 * @tsf: timestamp of last received update
582 * @beacon_interval: the beacon interval as from the frame
583 * @capability: the capability field in host byte order
584 * @information_elements: the information elements (Note that there
585 * is no guarantee that these are well-formed!)
586 * @len_information_elements: total length of the information elements
587 * @signal: signal strength value (type depends on the wiphy's signal_type)
588 * @free_priv: function pointer to free private data
589 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
590 */
591 struct cfg80211_bss {
592 struct ieee80211_channel *channel;
593
594 u8 bssid[ETH_ALEN];
595 u64 tsf;
596 u16 beacon_interval;
597 u16 capability;
598 u8 *information_elements;
599 size_t len_information_elements;
600
601 s32 signal;
602
603 void (*free_priv)(struct cfg80211_bss *bss);
604 u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
605 };
606
607 /**
608 * ieee80211_bss_get_ie - find IE with given ID
609 * @bss: the bss to search
610 * @ie: the IE ID
611 * Returns %NULL if not found.
612 */
613 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
614
615
616 /**
617 * struct cfg80211_crypto_settings - Crypto settings
618 * @wpa_versions: indicates which, if any, WPA versions are enabled
619 * (from enum nl80211_wpa_versions)
620 * @cipher_group: group key cipher suite (or 0 if unset)
621 * @n_ciphers_pairwise: number of AP supported unicast ciphers
622 * @ciphers_pairwise: unicast key cipher suites
623 * @n_akm_suites: number of AKM suites
624 * @akm_suites: AKM suites
625 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
626 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
627 * required to assume that the port is unauthorized until authorized by
628 * user space. Otherwise, port is marked authorized by default.
629 */
630 struct cfg80211_crypto_settings {
631 u32 wpa_versions;
632 u32 cipher_group;
633 int n_ciphers_pairwise;
634 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
635 int n_akm_suites;
636 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
637 bool control_port;
638 };
639
640 /**
641 * struct cfg80211_auth_request - Authentication request data
642 *
643 * This structure provides information needed to complete IEEE 802.11
644 * authentication.
645 *
646 * @bss: The BSS to authenticate with.
647 * @auth_type: Authentication type (algorithm)
648 * @ie: Extra IEs to add to Authentication frame or %NULL
649 * @ie_len: Length of ie buffer in octets
650 * @key_len: length of WEP key for shared key authentication
651 * @key_idx: index of WEP key for shared key authentication
652 * @key: WEP key for shared key authentication
653 */
654 struct cfg80211_auth_request {
655 struct cfg80211_bss *bss;
656 const u8 *ie;
657 size_t ie_len;
658 enum nl80211_auth_type auth_type;
659 const u8 *key;
660 u8 key_len, key_idx;
661 };
662
663 /**
664 * struct cfg80211_assoc_request - (Re)Association request data
665 *
666 * This structure provides information needed to complete IEEE 802.11
667 * (re)association.
668 * @bss: The BSS to associate with.
669 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
670 * @ie_len: Length of ie buffer in octets
671 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
672 * @crypto: crypto settings
673 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
674 */
675 struct cfg80211_assoc_request {
676 struct cfg80211_bss *bss;
677 const u8 *ie, *prev_bssid;
678 size_t ie_len;
679 struct cfg80211_crypto_settings crypto;
680 bool use_mfp;
681 };
682
683 /**
684 * struct cfg80211_deauth_request - Deauthentication request data
685 *
686 * This structure provides information needed to complete IEEE 802.11
687 * deauthentication.
688 *
689 * @bss: the BSS to deauthenticate from
690 * @ie: Extra IEs to add to Deauthentication frame or %NULL
691 * @ie_len: Length of ie buffer in octets
692 * @reason_code: The reason code for the deauthentication
693 */
694 struct cfg80211_deauth_request {
695 struct cfg80211_bss *bss;
696 const u8 *ie;
697 size_t ie_len;
698 u16 reason_code;
699 };
700
701 /**
702 * struct cfg80211_disassoc_request - Disassociation request data
703 *
704 * This structure provides information needed to complete IEEE 802.11
705 * disassocation.
706 *
707 * @bss: the BSS to disassociate from
708 * @ie: Extra IEs to add to Disassociation frame or %NULL
709 * @ie_len: Length of ie buffer in octets
710 * @reason_code: The reason code for the disassociation
711 */
712 struct cfg80211_disassoc_request {
713 struct cfg80211_bss *bss;
714 const u8 *ie;
715 size_t ie_len;
716 u16 reason_code;
717 };
718
719 /**
720 * struct cfg80211_ibss_params - IBSS parameters
721 *
722 * This structure defines the IBSS parameters for the join_ibss()
723 * method.
724 *
725 * @ssid: The SSID, will always be non-null.
726 * @ssid_len: The length of the SSID, will always be non-zero.
727 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
728 * search for IBSSs with a different BSSID.
729 * @channel: The channel to use if no IBSS can be found to join.
730 * @channel_fixed: The channel should be fixed -- do not search for
731 * IBSSs to join on other channels.
732 * @ie: information element(s) to include in the beacon
733 * @ie_len: length of that
734 * @beacon_interval: beacon interval to use
735 * @privacy: this is a protected network, keys will be configured
736 * after joining
737 */
738 struct cfg80211_ibss_params {
739 u8 *ssid;
740 u8 *bssid;
741 struct ieee80211_channel *channel;
742 u8 *ie;
743 u8 ssid_len, ie_len;
744 u16 beacon_interval;
745 bool channel_fixed;
746 bool privacy;
747 };
748
749 /**
750 * struct cfg80211_connect_params - Connection parameters
751 *
752 * This structure provides information needed to complete IEEE 802.11
753 * authentication and association.
754 *
755 * @channel: The channel to use or %NULL if not specified (auto-select based
756 * on scan results)
757 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
758 * results)
759 * @ssid: SSID
760 * @ssid_len: Length of ssid in octets
761 * @auth_type: Authentication type (algorithm)
762 * @assoc_ie: IEs for association request
763 * @assoc_ie_len: Length of assoc_ie in octets
764 * @privacy: indicates whether privacy-enabled APs should be used
765 * @crypto: crypto settings
766 * @key_len: length of WEP key for shared key authentication
767 * @key_idx: index of WEP key for shared key authentication
768 * @key: WEP key for shared key authentication
769 */
770 struct cfg80211_connect_params {
771 struct ieee80211_channel *channel;
772 u8 *bssid;
773 u8 *ssid;
774 size_t ssid_len;
775 enum nl80211_auth_type auth_type;
776 u8 *ie;
777 size_t ie_len;
778 bool privacy;
779 struct cfg80211_crypto_settings crypto;
780 const u8 *key;
781 u8 key_len, key_idx;
782 };
783
784 /**
785 * enum wiphy_params_flags - set_wiphy_params bitfield values
786 * WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
787 * WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
788 * WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
789 * WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
790 */
791 enum wiphy_params_flags {
792 WIPHY_PARAM_RETRY_SHORT = 1 << 0,
793 WIPHY_PARAM_RETRY_LONG = 1 << 1,
794 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
795 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
796 };
797
798 /**
799 * enum tx_power_setting - TX power adjustment
800 *
801 * @TX_POWER_AUTOMATIC: the dbm parameter is ignored
802 * @TX_POWER_LIMITED: limit TX power by the dbm parameter
803 * @TX_POWER_FIXED: fix TX power to the dbm parameter
804 */
805 enum tx_power_setting {
806 TX_POWER_AUTOMATIC,
807 TX_POWER_LIMITED,
808 TX_POWER_FIXED,
809 };
810
811 /*
812 * cfg80211_bitrate_mask - masks for bitrate control
813 */
814 struct cfg80211_bitrate_mask {
815 /*
816 * As discussed in Berlin, this struct really
817 * should look like this:
818
819 struct {
820 u32 legacy;
821 u8 mcs[IEEE80211_HT_MCS_MASK_LEN];
822 } control[IEEE80211_NUM_BANDS];
823
824 * Since we can always fix in-kernel users, let's keep
825 * it simpler for now:
826 */
827 u32 fixed; /* fixed bitrate, 0 == not fixed */
828 u32 maxrate; /* in kbps, 0 == no limit */
829 };
830
831 /**
832 * struct cfg80211_ops - backend description for wireless configuration
833 *
834 * This struct is registered by fullmac card drivers and/or wireless stacks
835 * in order to handle configuration requests on their interfaces.
836 *
837 * All callbacks except where otherwise noted should return 0
838 * on success or a negative error code.
839 *
840 * All operations are currently invoked under rtnl for consistency with the
841 * wireless extensions but this is subject to reevaluation as soon as this
842 * code is used more widely and we have a first user without wext.
843 *
844 * @suspend: wiphy device needs to be suspended
845 * @resume: wiphy device needs to be resumed
846 *
847 * @add_virtual_intf: create a new virtual interface with the given name,
848 * must set the struct wireless_dev's iftype. Beware: You must create
849 * the new netdev in the wiphy's network namespace!
850 *
851 * @del_virtual_intf: remove the virtual interface determined by ifindex.
852 *
853 * @change_virtual_intf: change type/configuration of virtual interface,
854 * keep the struct wireless_dev's iftype updated.
855 *
856 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
857 * when adding a group key.
858 *
859 * @get_key: get information about the key with the given parameters.
860 * @mac_addr will be %NULL when requesting information for a group
861 * key. All pointers given to the @callback function need not be valid
862 * after it returns. This function should return an error if it is
863 * not possible to retrieve the key, -ENOENT if it doesn't exist.
864 *
865 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
866 * and @key_index, return -ENOENT if the key doesn't exist.
867 *
868 * @set_default_key: set the default key on an interface
869 *
870 * @set_default_mgmt_key: set the default management frame key on an interface
871 *
872 * @add_beacon: Add a beacon with given parameters, @head, @interval
873 * and @dtim_period will be valid, @tail is optional.
874 * @set_beacon: Change the beacon parameters for an access point mode
875 * interface. This should reject the call when no beacon has been
876 * configured.
877 * @del_beacon: Remove beacon configuration and stop sending the beacon.
878 *
879 * @add_station: Add a new station.
880 *
881 * @del_station: Remove a station; @mac may be NULL to remove all stations.
882 *
883 * @change_station: Modify a given station.
884 *
885 * @get_mesh_params: Put the current mesh parameters into *params
886 *
887 * @set_mesh_params: Set mesh parameters.
888 * The mask is a bitfield which tells us which parameters to
889 * set, and which to leave alone.
890 *
891 * @set_mesh_cfg: set mesh parameters (by now, just mesh id)
892 *
893 * @change_bss: Modify parameters for a given BSS.
894 *
895 * @set_txq_params: Set TX queue parameters
896 *
897 * @set_channel: Set channel
898 *
899 * @scan: Request to do a scan. If returning zero, the scan request is given
900 * the driver, and will be valid until passed to cfg80211_scan_done().
901 * For scan results, call cfg80211_inform_bss(); you can call this outside
902 * the scan/scan_done bracket too.
903 *
904 * @auth: Request to authenticate with the specified peer
905 * @assoc: Request to (re)associate with the specified peer
906 * @deauth: Request to deauthenticate from the specified peer
907 * @disassoc: Request to disassociate from the specified peer
908 *
909 * @connect: Connect to the ESS with the specified parameters. When connected,
910 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
911 * If the connection fails for some reason, call cfg80211_connect_result()
912 * with the status from the AP.
913 * @disconnect: Disconnect from the BSS/ESS.
914 *
915 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
916 * cfg80211_ibss_joined(), also call that function when changing BSSID due
917 * to a merge.
918 * @leave_ibss: Leave the IBSS.
919 *
920 * @set_wiphy_params: Notify that wiphy parameters have changed;
921 * @changed bitfield (see &enum wiphy_params_flags) describes which values
922 * have changed. The actual parameter values are available in
923 * struct wiphy. If returning an error, no value should be changed.
924 *
925 * @set_tx_power: set the transmit power according to the parameters
926 * @get_tx_power: store the current TX power into the dbm variable;
927 * return 0 if successful
928 *
929 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
930 * functions to adjust rfkill hw state
931 *
932 * @testmode_cmd: run a test mode command
933 */
934 struct cfg80211_ops {
935 int (*suspend)(struct wiphy *wiphy);
936 int (*resume)(struct wiphy *wiphy);
937
938 int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
939 enum nl80211_iftype type, u32 *flags,
940 struct vif_params *params);
941 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
942 int (*change_virtual_intf)(struct wiphy *wiphy,
943 struct net_device *dev,
944 enum nl80211_iftype type, u32 *flags,
945 struct vif_params *params);
946
947 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
948 u8 key_index, const u8 *mac_addr,
949 struct key_params *params);
950 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
951 u8 key_index, const u8 *mac_addr, void *cookie,
952 void (*callback)(void *cookie, struct key_params*));
953 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
954 u8 key_index, const u8 *mac_addr);
955 int (*set_default_key)(struct wiphy *wiphy,
956 struct net_device *netdev,
957 u8 key_index);
958 int (*set_default_mgmt_key)(struct wiphy *wiphy,
959 struct net_device *netdev,
960 u8 key_index);
961
962 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
963 struct beacon_parameters *info);
964 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
965 struct beacon_parameters *info);
966 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
967
968
969 int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
970 u8 *mac, struct station_parameters *params);
971 int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
972 u8 *mac);
973 int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
974 u8 *mac, struct station_parameters *params);
975 int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
976 u8 *mac, struct station_info *sinfo);
977 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
978 int idx, u8 *mac, struct station_info *sinfo);
979
980 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
981 u8 *dst, u8 *next_hop);
982 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
983 u8 *dst);
984 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
985 u8 *dst, u8 *next_hop);
986 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
987 u8 *dst, u8 *next_hop,
988 struct mpath_info *pinfo);
989 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
990 int idx, u8 *dst, u8 *next_hop,
991 struct mpath_info *pinfo);
992 int (*get_mesh_params)(struct wiphy *wiphy,
993 struct net_device *dev,
994 struct mesh_config *conf);
995 int (*set_mesh_params)(struct wiphy *wiphy,
996 struct net_device *dev,
997 const struct mesh_config *nconf, u32 mask);
998 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
999 struct bss_parameters *params);
1000
1001 int (*set_txq_params)(struct wiphy *wiphy,
1002 struct ieee80211_txq_params *params);
1003
1004 int (*set_channel)(struct wiphy *wiphy,
1005 struct ieee80211_channel *chan,
1006 enum nl80211_channel_type channel_type);
1007
1008 int (*scan)(struct wiphy *wiphy, struct net_device *dev,
1009 struct cfg80211_scan_request *request);
1010
1011 int (*auth)(struct wiphy *wiphy, struct net_device *dev,
1012 struct cfg80211_auth_request *req);
1013 int (*assoc)(struct wiphy *wiphy, struct net_device *dev,
1014 struct cfg80211_assoc_request *req);
1015 int (*deauth)(struct wiphy *wiphy, struct net_device *dev,
1016 struct cfg80211_deauth_request *req,
1017 void *cookie);
1018 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev,
1019 struct cfg80211_disassoc_request *req,
1020 void *cookie);
1021
1022 int (*connect)(struct wiphy *wiphy, struct net_device *dev,
1023 struct cfg80211_connect_params *sme);
1024 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev,
1025 u16 reason_code);
1026
1027 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
1028 struct cfg80211_ibss_params *params);
1029 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
1030
1031 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
1032
1033 int (*set_tx_power)(struct wiphy *wiphy,
1034 enum tx_power_setting type, int dbm);
1035 int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
1036
1037 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
1038 u8 *addr);
1039
1040 void (*rfkill_poll)(struct wiphy *wiphy);
1041
1042 #ifdef CONFIG_NL80211_TESTMODE
1043 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
1044 #endif
1045
1046 int (*set_bitrate_mask)(struct wiphy *wiphy,
1047 struct net_device *dev,
1048 const u8 *peer,
1049 const struct cfg80211_bitrate_mask *mask);
1050
1051 /* some temporary stuff to finish wext */
1052 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
1053 bool enabled, int timeout);
1054 };
1055
1056 /*
1057 * wireless hardware and networking interfaces structures
1058 * and registration/helper functions
1059 */
1060
1061 /**
1062 * struct wiphy - wireless hardware description
1063 * @idx: the wiphy index assigned to this item
1064 * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
1065 * @custom_regulatory: tells us the driver for this device
1066 * has its own custom regulatory domain and cannot identify the
1067 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled
1068 * we will disregard the first regulatory hint (when the
1069 * initiator is %REGDOM_SET_BY_CORE).
1070 * @strict_regulatory: tells us the driver for this device will ignore
1071 * regulatory domain settings until it gets its own regulatory domain
1072 * via its regulatory_hint(). After its gets its own regulatory domain
1073 * it will only allow further regulatory domain settings to further
1074 * enhance compliance. For example if channel 13 and 14 are disabled
1075 * by this regulatory domain no user regulatory domain can enable these
1076 * channels at a later time. This can be used for devices which do not
1077 * have calibration information gauranteed for frequencies or settings
1078 * outside of its regulatory domain.
1079 * @reg_notifier: the driver's regulatory notification callback
1080 * @regd: the driver's regulatory domain, if one was requested via
1081 * the regulatory_hint() API. This can be used by the driver
1082 * on the reg_notifier() if it chooses to ignore future
1083 * regulatory domain changes caused by other drivers.
1084 * @signal_type: signal type reported in &struct cfg80211_bss.
1085 * @cipher_suites: supported cipher suites
1086 * @n_cipher_suites: number of supported cipher suites
1087 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
1088 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
1089 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
1090 * -1 = fragmentation disabled, only odd values >= 256 used
1091 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
1092 * @net: the network namespace this wiphy currently lives in
1093 * @netnsok: if set to false, do not allow changing the netns of this
1094 * wiphy at all
1095 */
1096 struct wiphy {
1097 /* assign these fields before you register the wiphy */
1098
1099 /* permanent MAC address */
1100 u8 perm_addr[ETH_ALEN];
1101
1102 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
1103 u16 interface_modes;
1104
1105 bool custom_regulatory;
1106 bool strict_regulatory;
1107
1108 bool netnsok;
1109
1110 enum cfg80211_signal_type signal_type;
1111
1112 int bss_priv_size;
1113 u8 max_scan_ssids;
1114 u16 max_scan_ie_len;
1115
1116 int n_cipher_suites;
1117 const u32 *cipher_suites;
1118
1119 u8 retry_short;
1120 u8 retry_long;
1121 u32 frag_threshold;
1122 u32 rts_threshold;
1123
1124 /* If multiple wiphys are registered and you're handed e.g.
1125 * a regular netdev with assigned ieee80211_ptr, you won't
1126 * know whether it points to a wiphy your driver has registered
1127 * or not. Assign this to something global to your driver to
1128 * help determine whether you own this wiphy or not. */
1129 const void *privid;
1130
1131 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
1132
1133 /* Lets us get back the wiphy on the callback */
1134 int (*reg_notifier)(struct wiphy *wiphy,
1135 struct regulatory_request *request);
1136
1137 /* fields below are read-only, assigned by cfg80211 */
1138
1139 const struct ieee80211_regdomain *regd;
1140
1141 /* the item in /sys/class/ieee80211/ points to this,
1142 * you need use set_wiphy_dev() (see below) */
1143 struct device dev;
1144
1145 /* dir in debugfs: ieee80211/<wiphyname> */
1146 struct dentry *debugfsdir;
1147
1148 #ifdef CONFIG_NET_NS
1149 /* the network namespace this phy lives in currently */
1150 struct net *_net;
1151 #endif
1152
1153 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
1154 };
1155
1156 #ifdef CONFIG_NET_NS
1157 static inline struct net *wiphy_net(struct wiphy *wiphy)
1158 {
1159 return wiphy->_net;
1160 }
1161
1162 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
1163 {
1164 wiphy->_net = net;
1165 }
1166 #else
1167 static inline struct net *wiphy_net(struct wiphy *wiphy)
1168 {
1169 return &init_net;
1170 }
1171
1172 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
1173 {
1174 }
1175 #endif
1176
1177 /**
1178 * wiphy_priv - return priv from wiphy
1179 *
1180 * @wiphy: the wiphy whose priv pointer to return
1181 */
1182 static inline void *wiphy_priv(struct wiphy *wiphy)
1183 {
1184 BUG_ON(!wiphy);
1185 return &wiphy->priv;
1186 }
1187
1188 /**
1189 * priv_to_wiphy - return the wiphy containing the priv
1190 *
1191 * @priv: a pointer previously returned by wiphy_priv
1192 */
1193 static inline struct wiphy *priv_to_wiphy(void *priv)
1194 {
1195 BUG_ON(!priv);
1196 return container_of(priv, struct wiphy, priv);
1197 }
1198
1199 /**
1200 * set_wiphy_dev - set device pointer for wiphy
1201 *
1202 * @wiphy: The wiphy whose device to bind
1203 * @dev: The device to parent it to
1204 */
1205 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
1206 {
1207 wiphy->dev.parent = dev;
1208 }
1209
1210 /**
1211 * wiphy_dev - get wiphy dev pointer
1212 *
1213 * @wiphy: The wiphy whose device struct to look up
1214 */
1215 static inline struct device *wiphy_dev(struct wiphy *wiphy)
1216 {
1217 return wiphy->dev.parent;
1218 }
1219
1220 /**
1221 * wiphy_name - get wiphy name
1222 *
1223 * @wiphy: The wiphy whose name to return
1224 */
1225 static inline const char *wiphy_name(struct wiphy *wiphy)
1226 {
1227 return dev_name(&wiphy->dev);
1228 }
1229
1230 /**
1231 * wiphy_new - create a new wiphy for use with cfg80211
1232 *
1233 * @ops: The configuration operations for this device
1234 * @sizeof_priv: The size of the private area to allocate
1235 *
1236 * Create a new wiphy and associate the given operations with it.
1237 * @sizeof_priv bytes are allocated for private use.
1238 *
1239 * The returned pointer must be assigned to each netdev's
1240 * ieee80211_ptr for proper operation.
1241 */
1242 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
1243
1244 /**
1245 * wiphy_register - register a wiphy with cfg80211
1246 *
1247 * @wiphy: The wiphy to register.
1248 *
1249 * Returns a non-negative wiphy index or a negative error code.
1250 */
1251 extern int wiphy_register(struct wiphy *wiphy);
1252
1253 /**
1254 * wiphy_unregister - deregister a wiphy from cfg80211
1255 *
1256 * @wiphy: The wiphy to unregister.
1257 *
1258 * After this call, no more requests can be made with this priv
1259 * pointer, but the call may sleep to wait for an outstanding
1260 * request that is being handled.
1261 */
1262 extern void wiphy_unregister(struct wiphy *wiphy);
1263
1264 /**
1265 * wiphy_free - free wiphy
1266 *
1267 * @wiphy: The wiphy to free
1268 */
1269 extern void wiphy_free(struct wiphy *wiphy);
1270
1271 /* internal structs */
1272 struct cfg80211_conn;
1273 struct cfg80211_internal_bss;
1274 struct cfg80211_cached_keys;
1275
1276 #define MAX_AUTH_BSSES 4
1277
1278 /**
1279 * struct wireless_dev - wireless per-netdev state
1280 *
1281 * This structure must be allocated by the driver/stack
1282 * that uses the ieee80211_ptr field in struct net_device
1283 * (this is intentional so it can be allocated along with
1284 * the netdev.)
1285 *
1286 * @wiphy: pointer to hardware description
1287 * @iftype: interface type
1288 * @list: (private) Used to collect the interfaces
1289 * @netdev: (private) Used to reference back to the netdev
1290 * @current_bss: (private) Used by the internal configuration code
1291 * @bssid: (private) Used by the internal configuration code
1292 * @ssid: (private) Used by the internal configuration code
1293 * @ssid_len: (private) Used by the internal configuration code
1294 * @wext: (private) Used by the internal wireless extensions compat code
1295 * @wext_bssid: (private) Used by the internal wireless extensions compat code
1296 */
1297 struct wireless_dev {
1298 struct wiphy *wiphy;
1299 enum nl80211_iftype iftype;
1300
1301 /* the remainder of this struct should be private to cfg80211 */
1302 struct list_head list;
1303 struct net_device *netdev;
1304
1305 struct mutex mtx;
1306
1307 /* currently used for IBSS and SME - might be rearranged later */
1308 u8 ssid[IEEE80211_MAX_SSID_LEN];
1309 u8 ssid_len;
1310 enum {
1311 CFG80211_SME_IDLE,
1312 CFG80211_SME_CONNECTING,
1313 CFG80211_SME_CONNECTED,
1314 } sme_state;
1315 struct cfg80211_conn *conn;
1316 struct cfg80211_cached_keys *connect_keys;
1317
1318 struct list_head event_list;
1319 spinlock_t event_lock;
1320
1321 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
1322 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
1323 struct cfg80211_internal_bss *current_bss; /* associated / joined */
1324
1325 #ifdef CONFIG_WIRELESS_EXT
1326 /* wext data */
1327 struct {
1328 struct cfg80211_ibss_params ibss;
1329 struct cfg80211_connect_params connect;
1330 struct cfg80211_cached_keys *keys;
1331 u8 *ie;
1332 size_t ie_len;
1333 u8 bssid[ETH_ALEN];
1334 u8 ssid[IEEE80211_MAX_SSID_LEN];
1335 s8 default_key, default_mgmt_key;
1336 bool ps;
1337 int ps_timeout;
1338 } wext;
1339 #endif
1340 };
1341
1342 /**
1343 * wdev_priv - return wiphy priv from wireless_dev
1344 *
1345 * @wdev: The wireless device whose wiphy's priv pointer to return
1346 */
1347 static inline void *wdev_priv(struct wireless_dev *wdev)
1348 {
1349 BUG_ON(!wdev);
1350 return wiphy_priv(wdev->wiphy);
1351 }
1352
1353 /*
1354 * Utility functions
1355 */
1356
1357 /**
1358 * ieee80211_channel_to_frequency - convert channel number to frequency
1359 */
1360 extern int ieee80211_channel_to_frequency(int chan);
1361
1362 /**
1363 * ieee80211_frequency_to_channel - convert frequency to channel number
1364 */
1365 extern int ieee80211_frequency_to_channel(int freq);
1366
1367 /*
1368 * Name indirection necessary because the ieee80211 code also has
1369 * a function named "ieee80211_get_channel", so if you include
1370 * cfg80211's header file you get cfg80211's version, if you try
1371 * to include both header files you'll (rightfully!) get a symbol
1372 * clash.
1373 */
1374 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
1375 int freq);
1376 /**
1377 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
1378 */
1379 static inline struct ieee80211_channel *
1380 ieee80211_get_channel(struct wiphy *wiphy, int freq)
1381 {
1382 return __ieee80211_get_channel(wiphy, freq);
1383 }
1384
1385 /**
1386 * ieee80211_get_response_rate - get basic rate for a given rate
1387 *
1388 * @sband: the band to look for rates in
1389 * @basic_rates: bitmap of basic rates
1390 * @bitrate: the bitrate for which to find the basic rate
1391 *
1392 * This function returns the basic rate corresponding to a given
1393 * bitrate, that is the next lower bitrate contained in the basic
1394 * rate map, which is, for this function, given as a bitmap of
1395 * indices of rates in the band's bitrate table.
1396 */
1397 struct ieee80211_rate *
1398 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
1399 u32 basic_rates, int bitrate);
1400
1401 /*
1402 * Radiotap parsing functions -- for controlled injection support
1403 *
1404 * Implemented in net/wireless/radiotap.c
1405 * Documentation in Documentation/networking/radiotap-headers.txt
1406 */
1407
1408 /**
1409 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
1410 * @rtheader: pointer to the radiotap header we are walking through
1411 * @max_length: length of radiotap header in cpu byte ordering
1412 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
1413 * @this_arg: pointer to current radiotap arg
1414 * @arg_index: internal next argument index
1415 * @arg: internal next argument pointer
1416 * @next_bitmap: internal pointer to next present u32
1417 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
1418 */
1419
1420 struct ieee80211_radiotap_iterator {
1421 struct ieee80211_radiotap_header *rtheader;
1422 int max_length;
1423 int this_arg_index;
1424 u8 *this_arg;
1425
1426 int arg_index;
1427 u8 *arg;
1428 __le32 *next_bitmap;
1429 u32 bitmap_shifter;
1430 };
1431
1432 extern int ieee80211_radiotap_iterator_init(
1433 struct ieee80211_radiotap_iterator *iterator,
1434 struct ieee80211_radiotap_header *radiotap_header,
1435 int max_length);
1436
1437 extern int ieee80211_radiotap_iterator_next(
1438 struct ieee80211_radiotap_iterator *iterator);
1439
1440 extern const unsigned char rfc1042_header[6];
1441 extern const unsigned char bridge_tunnel_header[6];
1442
1443 /**
1444 * ieee80211_get_hdrlen_from_skb - get header length from data
1445 *
1446 * Given an skb with a raw 802.11 header at the data pointer this function
1447 * returns the 802.11 header length in bytes (not including encryption
1448 * headers). If the data in the sk_buff is too short to contain a valid 802.11
1449 * header the function returns 0.
1450 *
1451 * @skb: the frame
1452 */
1453 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
1454
1455 /**
1456 * ieee80211_hdrlen - get header length in bytes from frame control
1457 * @fc: frame control field in little-endian format
1458 */
1459 unsigned int ieee80211_hdrlen(__le16 fc);
1460
1461 /**
1462 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
1463 * @skb: the 802.11 data frame
1464 * @addr: the device MAC address
1465 * @iftype: the virtual interface type
1466 */
1467 int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
1468 enum nl80211_iftype iftype);
1469
1470 /**
1471 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
1472 * @skb: the 802.3 frame
1473 * @addr: the device MAC address
1474 * @iftype: the virtual interface type
1475 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
1476 * @qos: build 802.11 QoS data frame
1477 */
1478 int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
1479 enum nl80211_iftype iftype, u8 *bssid, bool qos);
1480
1481 /**
1482 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
1483 * @skb: the data frame
1484 */
1485 unsigned int cfg80211_classify8021d(struct sk_buff *skb);
1486
1487 /*
1488 * Regulatory helper functions for wiphys
1489 */
1490
1491 /**
1492 * regulatory_hint - driver hint to the wireless core a regulatory domain
1493 * @wiphy: the wireless device giving the hint (used only for reporting
1494 * conflicts)
1495 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
1496 * should be in. If @rd is set this should be NULL. Note that if you
1497 * set this to NULL you should still set rd->alpha2 to some accepted
1498 * alpha2.
1499 *
1500 * Wireless drivers can use this function to hint to the wireless core
1501 * what it believes should be the current regulatory domain by
1502 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
1503 * domain should be in or by providing a completely build regulatory domain.
1504 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
1505 * for a regulatory domain structure for the respective country.
1506 *
1507 * The wiphy must have been registered to cfg80211 prior to this call.
1508 * For cfg80211 drivers this means you must first use wiphy_register(),
1509 * for mac80211 drivers you must first use ieee80211_register_hw().
1510 *
1511 * Drivers should check the return value, its possible you can get
1512 * an -ENOMEM.
1513 */
1514 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
1515
1516 /**
1517 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
1518 * @wiphy: the wireless device we want to process the regulatory domain on
1519 * @regd: the custom regulatory domain to use for this wiphy
1520 *
1521 * Drivers can sometimes have custom regulatory domains which do not apply
1522 * to a specific country. Drivers can use this to apply such custom regulatory
1523 * domains. This routine must be called prior to wiphy registration. The
1524 * custom regulatory domain will be trusted completely and as such previous
1525 * default channel settings will be disregarded. If no rule is found for a
1526 * channel on the regulatory domain the channel will be disabled.
1527 */
1528 extern void wiphy_apply_custom_regulatory(
1529 struct wiphy *wiphy,
1530 const struct ieee80211_regdomain *regd);
1531
1532 /**
1533 * freq_reg_info - get regulatory information for the given frequency
1534 * @wiphy: the wiphy for which we want to process this rule for
1535 * @center_freq: Frequency in KHz for which we want regulatory information for
1536 * @desired_bw_khz: the desired max bandwidth you want to use per
1537 * channel. Note that this is still 20 MHz if you want to use HT40
1538 * as HT40 makes use of two channels for its 40 MHz width bandwidth.
1539 * If set to 0 we'll assume you want the standard 20 MHz.
1540 * @reg_rule: the regulatory rule which we have for this frequency
1541 *
1542 * Use this function to get the regulatory rule for a specific frequency on
1543 * a given wireless device. If the device has a specific regulatory domain
1544 * it wants to follow we respect that unless a country IE has been received
1545 * and processed already.
1546 *
1547 * Returns 0 if it was able to find a valid regulatory rule which does
1548 * apply to the given center_freq otherwise it returns non-zero. It will
1549 * also return -ERANGE if we determine the given center_freq does not even have
1550 * a regulatory rule for a frequency range in the center_freq's band. See
1551 * freq_in_rule_band() for our current definition of a band -- this is purely
1552 * subjective and right now its 802.11 specific.
1553 */
1554 extern int freq_reg_info(struct wiphy *wiphy,
1555 u32 center_freq,
1556 u32 desired_bw_khz,
1557 const struct ieee80211_reg_rule **reg_rule);
1558
1559 /*
1560 * Temporary wext handlers & helper functions
1561 *
1562 * In the future cfg80211 will simply assign the entire wext handler
1563 * structure to netdevs it manages, but we're not there yet.
1564 */
1565 int cfg80211_wext_giwname(struct net_device *dev,
1566 struct iw_request_info *info,
1567 char *name, char *extra);
1568 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
1569 u32 *mode, char *extra);
1570 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
1571 u32 *mode, char *extra);
1572 int cfg80211_wext_siwscan(struct net_device *dev,
1573 struct iw_request_info *info,
1574 union iwreq_data *wrqu, char *extra);
1575 int cfg80211_wext_giwscan(struct net_device *dev,
1576 struct iw_request_info *info,
1577 struct iw_point *data, char *extra);
1578 int cfg80211_wext_siwmlme(struct net_device *dev,
1579 struct iw_request_info *info,
1580 struct iw_point *data, char *extra);
1581 int cfg80211_wext_giwrange(struct net_device *dev,
1582 struct iw_request_info *info,
1583 struct iw_point *data, char *extra);
1584 int cfg80211_wext_siwgenie(struct net_device *dev,
1585 struct iw_request_info *info,
1586 struct iw_point *data, char *extra);
1587 int cfg80211_wext_siwauth(struct net_device *dev,
1588 struct iw_request_info *info,
1589 struct iw_param *data, char *extra);
1590 int cfg80211_wext_giwauth(struct net_device *dev,
1591 struct iw_request_info *info,
1592 struct iw_param *data, char *extra);
1593
1594 int cfg80211_wext_siwfreq(struct net_device *dev,
1595 struct iw_request_info *info,
1596 struct iw_freq *freq, char *extra);
1597 int cfg80211_wext_giwfreq(struct net_device *dev,
1598 struct iw_request_info *info,
1599 struct iw_freq *freq, char *extra);
1600 int cfg80211_wext_siwessid(struct net_device *dev,
1601 struct iw_request_info *info,
1602 struct iw_point *data, char *ssid);
1603 int cfg80211_wext_giwessid(struct net_device *dev,
1604 struct iw_request_info *info,
1605 struct iw_point *data, char *ssid);
1606 int cfg80211_wext_siwrate(struct net_device *dev,
1607 struct iw_request_info *info,
1608 struct iw_param *rate, char *extra);
1609 int cfg80211_wext_giwrate(struct net_device *dev,
1610 struct iw_request_info *info,
1611 struct iw_param *rate, char *extra);
1612
1613 int cfg80211_wext_siwrts(struct net_device *dev,
1614 struct iw_request_info *info,
1615 struct iw_param *rts, char *extra);
1616 int cfg80211_wext_giwrts(struct net_device *dev,
1617 struct iw_request_info *info,
1618 struct iw_param *rts, char *extra);
1619 int cfg80211_wext_siwfrag(struct net_device *dev,
1620 struct iw_request_info *info,
1621 struct iw_param *frag, char *extra);
1622 int cfg80211_wext_giwfrag(struct net_device *dev,
1623 struct iw_request_info *info,
1624 struct iw_param *frag, char *extra);
1625 int cfg80211_wext_siwretry(struct net_device *dev,
1626 struct iw_request_info *info,
1627 struct iw_param *retry, char *extra);
1628 int cfg80211_wext_giwretry(struct net_device *dev,
1629 struct iw_request_info *info,
1630 struct iw_param *retry, char *extra);
1631 int cfg80211_wext_siwencodeext(struct net_device *dev,
1632 struct iw_request_info *info,
1633 struct iw_point *erq, char *extra);
1634 int cfg80211_wext_siwencode(struct net_device *dev,
1635 struct iw_request_info *info,
1636 struct iw_point *erq, char *keybuf);
1637 int cfg80211_wext_giwencode(struct net_device *dev,
1638 struct iw_request_info *info,
1639 struct iw_point *erq, char *keybuf);
1640 int cfg80211_wext_siwtxpower(struct net_device *dev,
1641 struct iw_request_info *info,
1642 union iwreq_data *data, char *keybuf);
1643 int cfg80211_wext_giwtxpower(struct net_device *dev,
1644 struct iw_request_info *info,
1645 union iwreq_data *data, char *keybuf);
1646 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev);
1647
1648 int cfg80211_wext_siwpower(struct net_device *dev,
1649 struct iw_request_info *info,
1650 struct iw_param *wrq, char *extra);
1651 int cfg80211_wext_giwpower(struct net_device *dev,
1652 struct iw_request_info *info,
1653 struct iw_param *wrq, char *extra);
1654
1655 int cfg80211_wext_siwap(struct net_device *dev,
1656 struct iw_request_info *info,
1657 struct sockaddr *ap_addr, char *extra);
1658 int cfg80211_wext_giwap(struct net_device *dev,
1659 struct iw_request_info *info,
1660 struct sockaddr *ap_addr, char *extra);
1661
1662 /*
1663 * callbacks for asynchronous cfg80211 methods, notification
1664 * functions and BSS handling helpers
1665 */
1666
1667 /**
1668 * cfg80211_scan_done - notify that scan finished
1669 *
1670 * @request: the corresponding scan request
1671 * @aborted: set to true if the scan was aborted for any reason,
1672 * userspace will be notified of that
1673 */
1674 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
1675
1676 /**
1677 * cfg80211_inform_bss - inform cfg80211 of a new BSS
1678 *
1679 * @wiphy: the wiphy reporting the BSS
1680 * @bss: the found BSS
1681 * @signal: the signal strength, type depends on the wiphy's signal_type
1682 * @gfp: context flags
1683 *
1684 * This informs cfg80211 that BSS information was found and
1685 * the BSS should be updated/added.
1686 */
1687 struct cfg80211_bss*
1688 cfg80211_inform_bss_frame(struct wiphy *wiphy,
1689 struct ieee80211_channel *channel,
1690 struct ieee80211_mgmt *mgmt, size_t len,
1691 s32 signal, gfp_t gfp);
1692
1693 struct cfg80211_bss*
1694 cfg80211_inform_bss(struct wiphy *wiphy,
1695 struct ieee80211_channel *channel,
1696 const u8 *bssid,
1697 u64 timestamp, u16 capability, u16 beacon_interval,
1698 const u8 *ie, size_t ielen,
1699 s32 signal, gfp_t gfp);
1700
1701 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
1702 struct ieee80211_channel *channel,
1703 const u8 *bssid,
1704 const u8 *ssid, size_t ssid_len,
1705 u16 capa_mask, u16 capa_val);
1706 static inline struct cfg80211_bss *
1707 cfg80211_get_ibss(struct wiphy *wiphy,
1708 struct ieee80211_channel *channel,
1709 const u8 *ssid, size_t ssid_len)
1710 {
1711 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
1712 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1713 }
1714
1715 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
1716 struct ieee80211_channel *channel,
1717 const u8 *meshid, size_t meshidlen,
1718 const u8 *meshcfg);
1719 void cfg80211_put_bss(struct cfg80211_bss *bss);
1720
1721 /**
1722 * cfg80211_unlink_bss - unlink BSS from internal data structures
1723 * @wiphy: the wiphy
1724 * @bss: the bss to remove
1725 *
1726 * This function removes the given BSS from the internal data structures
1727 * thereby making it no longer show up in scan results etc. Use this
1728 * function when you detect a BSS is gone. Normally BSSes will also time
1729 * out, so it is not necessary to use this function at all.
1730 */
1731 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
1732
1733 /**
1734 * cfg80211_send_rx_auth - notification of processed authentication
1735 * @dev: network device
1736 * @buf: authentication frame (header + body)
1737 * @len: length of the frame data
1738 *
1739 * This function is called whenever an authentication has been processed in
1740 * station mode. The driver is required to call either this function or
1741 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
1742 * call. This function may sleep.
1743 */
1744 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
1745
1746 /**
1747 * cfg80211_send_auth_timeout - notification of timed out authentication
1748 * @dev: network device
1749 * @addr: The MAC address of the device with which the authentication timed out
1750 *
1751 * This function may sleep.
1752 */
1753 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
1754
1755 /**
1756 * cfg80211_send_rx_assoc - notification of processed association
1757 * @dev: network device
1758 * @buf: (re)association response frame (header + body)
1759 * @len: length of the frame data
1760 *
1761 * This function is called whenever a (re)association response has been
1762 * processed in station mode. The driver is required to call either this
1763 * function or cfg80211_send_assoc_timeout() to indicate the result of
1764 * cfg80211_ops::assoc() call. This function may sleep.
1765 */
1766 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
1767
1768 /**
1769 * cfg80211_send_assoc_timeout - notification of timed out association
1770 * @dev: network device
1771 * @addr: The MAC address of the device with which the association timed out
1772 *
1773 * This function may sleep.
1774 */
1775 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
1776
1777 /**
1778 * cfg80211_send_deauth - notification of processed deauthentication
1779 * @dev: network device
1780 * @buf: deauthentication frame (header + body)
1781 * @len: length of the frame data
1782 * @cookie: cookie from ->deauth if called within that callback,
1783 * %NULL otherwise
1784 *
1785 * This function is called whenever deauthentication has been processed in
1786 * station mode. This includes both received deauthentication frames and
1787 * locally generated ones. This function may sleep.
1788 */
1789 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
1790 void *cookie);
1791
1792 /**
1793 * cfg80211_send_disassoc - notification of processed disassociation
1794 * @dev: network device
1795 * @buf: disassociation response frame (header + body)
1796 * @len: length of the frame data
1797 * @cookie: cookie from ->disassoc if called within that callback,
1798 * %NULL otherwise
1799 *
1800 * This function is called whenever disassociation has been processed in
1801 * station mode. This includes both received disassociation frames and locally
1802 * generated ones. This function may sleep.
1803 */
1804 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
1805 void *cookie);
1806
1807 /**
1808 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
1809 * @dev: network device
1810 * @addr: The source MAC address of the frame
1811 * @key_type: The key type that the received frame used
1812 * @key_id: Key identifier (0..3)
1813 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
1814 * @gfp: allocation flags
1815 *
1816 * This function is called whenever the local MAC detects a MIC failure in a
1817 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
1818 * primitive.
1819 */
1820 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
1821 enum nl80211_key_type key_type, int key_id,
1822 const u8 *tsc, gfp_t gfp);
1823
1824 /**
1825 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
1826 *
1827 * @dev: network device
1828 * @bssid: the BSSID of the IBSS joined
1829 * @gfp: allocation flags
1830 *
1831 * This function notifies cfg80211 that the device joined an IBSS or
1832 * switched to a different BSSID. Before this function can be called,
1833 * either a beacon has to have been received from the IBSS, or one of
1834 * the cfg80211_inform_bss{,_frame} functions must have been called
1835 * with the locally generated beacon -- this guarantees that there is
1836 * always a scan result for this IBSS. cfg80211 will handle the rest.
1837 */
1838 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);
1839
1840 /**
1841 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
1842 * @wiphy: the wiphy
1843 * @blocked: block status
1844 */
1845 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);
1846
1847 /**
1848 * wiphy_rfkill_start_polling - start polling rfkill
1849 * @wiphy: the wiphy
1850 */
1851 void wiphy_rfkill_start_polling(struct wiphy *wiphy);
1852
1853 /**
1854 * wiphy_rfkill_stop_polling - stop polling rfkill
1855 * @wiphy: the wiphy
1856 */
1857 void wiphy_rfkill_stop_polling(struct wiphy *wiphy);
1858
1859 #ifdef CONFIG_NL80211_TESTMODE
1860 /**
1861 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
1862 * @wiphy: the wiphy
1863 * @approxlen: an upper bound of the length of the data that will
1864 * be put into the skb
1865 *
1866 * This function allocates and pre-fills an skb for a reply to
1867 * the testmode command. Since it is intended for a reply, calling
1868 * it outside of the @testmode_cmd operation is invalid.
1869 *
1870 * The returned skb (or %NULL if any errors happen) is pre-filled
1871 * with the wiphy index and set up in a way that any data that is
1872 * put into the skb (with skb_put(), nla_put() or similar) will end
1873 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
1874 * needs to be done with the skb is adding data for the corresponding
1875 * userspace tool which can then read that data out of the testdata
1876 * attribute. You must not modify the skb in any other way.
1877 *
1878 * When done, call cfg80211_testmode_reply() with the skb and return
1879 * its error code as the result of the @testmode_cmd operation.
1880 */
1881 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
1882 int approxlen);
1883
1884 /**
1885 * cfg80211_testmode_reply - send the reply skb
1886 * @skb: The skb, must have been allocated with
1887 * cfg80211_testmode_alloc_reply_skb()
1888 *
1889 * Returns an error code or 0 on success, since calling this
1890 * function will usually be the last thing before returning
1891 * from the @testmode_cmd you should return the error code.
1892 * Note that this function consumes the skb regardless of the
1893 * return value.
1894 */
1895 int cfg80211_testmode_reply(struct sk_buff *skb);
1896
1897 /**
1898 * cfg80211_testmode_alloc_event_skb - allocate testmode event
1899 * @wiphy: the wiphy
1900 * @approxlen: an upper bound of the length of the data that will
1901 * be put into the skb
1902 * @gfp: allocation flags
1903 *
1904 * This function allocates and pre-fills an skb for an event on the
1905 * testmode multicast group.
1906 *
1907 * The returned skb (or %NULL if any errors happen) is set up in the
1908 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
1909 * for an event. As there, you should simply add data to it that will
1910 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
1911 * not modify the skb in any other way.
1912 *
1913 * When done filling the skb, call cfg80211_testmode_event() with the
1914 * skb to send the event.
1915 */
1916 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
1917 int approxlen, gfp_t gfp);
1918
1919 /**
1920 * cfg80211_testmode_event - send the event
1921 * @skb: The skb, must have been allocated with
1922 * cfg80211_testmode_alloc_event_skb()
1923 * @gfp: allocation flags
1924 *
1925 * This function sends the given @skb, which must have been allocated
1926 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
1927 * consumes it.
1928 */
1929 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
1930
1931 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
1932 #else
1933 #define CFG80211_TESTMODE_CMD(cmd)
1934 #endif
1935
1936 /**
1937 * cfg80211_connect_result - notify cfg80211 of connection result
1938 *
1939 * @dev: network device
1940 * @bssid: the BSSID of the AP
1941 * @req_ie: association request IEs (maybe be %NULL)
1942 * @req_ie_len: association request IEs length
1943 * @resp_ie: association response IEs (may be %NULL)
1944 * @resp_ie_len: assoc response IEs length
1945 * @status: status code, 0 for successful connection, use
1946 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
1947 * the real status code for failures.
1948 * @gfp: allocation flags
1949 *
1950 * It should be called by the underlying driver whenever connect() has
1951 * succeeded.
1952 */
1953 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
1954 const u8 *req_ie, size_t req_ie_len,
1955 const u8 *resp_ie, size_t resp_ie_len,
1956 u16 status, gfp_t gfp);
1957
1958 /**
1959 * cfg80211_roamed - notify cfg80211 of roaming
1960 *
1961 * @dev: network device
1962 * @bssid: the BSSID of the new AP
1963 * @req_ie: association request IEs (maybe be %NULL)
1964 * @req_ie_len: association request IEs length
1965 * @resp_ie: association response IEs (may be %NULL)
1966 * @resp_ie_len: assoc response IEs length
1967 * @gfp: allocation flags
1968 *
1969 * It should be called by the underlying driver whenever it roamed
1970 * from one AP to another while connected.
1971 */
1972 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
1973 const u8 *req_ie, size_t req_ie_len,
1974 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);
1975
1976 /**
1977 * cfg80211_disconnected - notify cfg80211 that connection was dropped
1978 *
1979 * @dev: network device
1980 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
1981 * @ie_len: length of IEs
1982 * @reason: reason code for the disconnection, set it to 0 if unknown
1983 * @gfp: allocation flags
1984 *
1985 * After it calls this function, the driver should enter an idle state
1986 * and not try to connect to any AP any more.
1987 */
1988 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1989 u8 *ie, size_t ie_len, gfp_t gfp);
1990
1991
1992 #endif /* __NET_CFG80211_H */