1 /*
2  * Driver interface definition
3  * Copyright (c) 2003-2017, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  *
8  * This file defines a driver interface used by both %wpa_supplicant and
9  * hostapd. The first part of the file defines data structures used in various
10  * driver operations. This is followed by the struct wpa_driver_ops that each
11  * driver wrapper will beed to define with callback functions for requesting
12  * driver operations. After this, there are definitions for driver event
13  * reporting with wpa_supplicant_event() and some convenience helper functions
14  * that can be used to report events.
15  */
16 
17 #ifndef DRIVER_H
18 #define DRIVER_H
19 
20 #define WPA_SUPPLICANT_DRIVER_VERSION 4
21 
22 #include "common/defs.h"
23 #include "common/ieee802_11_defs.h"
24 #include "common/wpa_common.h"
25 #ifdef CONFIG_MACSEC
26 #include "pae/ieee802_1x_kay.h"
27 #endif /* CONFIG_MACSEC */
28 #include "utils/list.h"
29 
30 #define HOSTAPD_CHAN_DISABLED 0x00000001
31 #define HOSTAPD_CHAN_NO_IR 0x00000002
32 #define HOSTAPD_CHAN_RADAR 0x00000008
33 #define HOSTAPD_CHAN_HT40PLUS 0x00000010
34 #define HOSTAPD_CHAN_HT40MINUS 0x00000020
35 #define HOSTAPD_CHAN_HT40 0x00000040
36 #define HOSTAPD_CHAN_SURVEY_LIST_INITIALIZED 0x00000080
37 
38 #define HOSTAPD_CHAN_DFS_UNKNOWN 0x00000000
39 #define HOSTAPD_CHAN_DFS_USABLE 0x00000100
40 #define HOSTAPD_CHAN_DFS_UNAVAILABLE 0x00000200
41 #define HOSTAPD_CHAN_DFS_AVAILABLE 0x00000300
42 #define HOSTAPD_CHAN_DFS_MASK 0x00000300
43 
44 #define HOSTAPD_CHAN_VHT_10_70 0x00000800
45 #define HOSTAPD_CHAN_VHT_30_50 0x00001000
46 #define HOSTAPD_CHAN_VHT_50_30 0x00002000
47 #define HOSTAPD_CHAN_VHT_70_10 0x00004000
48 
49 #define HOSTAPD_CHAN_INDOOR_ONLY 0x00010000
50 #define HOSTAPD_CHAN_GO_CONCURRENT 0x00020000
51 
52 #define HOSTAPD_CHAN_VHT_10_150 0x00100000
53 #define HOSTAPD_CHAN_VHT_30_130 0x00200000
54 #define HOSTAPD_CHAN_VHT_50_110 0x00400000
55 #define HOSTAPD_CHAN_VHT_70_90  0x00800000
56 #define HOSTAPD_CHAN_VHT_90_70  0x01000000
57 #define HOSTAPD_CHAN_VHT_110_50 0x02000000
58 #define HOSTAPD_CHAN_VHT_130_30 0x04000000
59 #define HOSTAPD_CHAN_VHT_150_10 0x08000000
60 
61 /* Allowed bandwidth mask */
62 enum hostapd_chan_width_attr {
63 	HOSTAPD_CHAN_WIDTH_10   = BIT(0),
64 	HOSTAPD_CHAN_WIDTH_20   = BIT(1),
65 	HOSTAPD_CHAN_WIDTH_40P  = BIT(2),
66 	HOSTAPD_CHAN_WIDTH_40M  = BIT(3),
67 	HOSTAPD_CHAN_WIDTH_80   = BIT(4),
68 	HOSTAPD_CHAN_WIDTH_160  = BIT(5),
69 };
70 
71 /* Filter gratuitous ARP */
72 #define WPA_DATA_FRAME_FILTER_FLAG_ARP BIT(0)
73 /* Filter unsolicited Neighbor Advertisement */
74 #define WPA_DATA_FRAME_FILTER_FLAG_NA BIT(1)
75 /* Filter unicast IP packets encrypted using the GTK */
76 #define WPA_DATA_FRAME_FILTER_FLAG_GTK BIT(2)
77 
78 #define HOSTAPD_DFS_REGION_FCC	1
79 #define HOSTAPD_DFS_REGION_ETSI	2
80 #define HOSTAPD_DFS_REGION_JP	3
81 
82 /**
83  * enum reg_change_initiator - Regulatory change initiator
84  */
85 enum reg_change_initiator {
86 	REGDOM_SET_BY_CORE,
87 	REGDOM_SET_BY_USER,
88 	REGDOM_SET_BY_DRIVER,
89 	REGDOM_SET_BY_COUNTRY_IE,
90 	REGDOM_BEACON_HINT,
91 };
92 
93 /**
94  * enum reg_type - Regulatory change types
95  */
96 enum reg_type {
97 	REGDOM_TYPE_UNKNOWN,
98 	REGDOM_TYPE_COUNTRY,
99 	REGDOM_TYPE_WORLD,
100 	REGDOM_TYPE_CUSTOM_WORLD,
101 	REGDOM_TYPE_INTERSECTION,
102 };
103 
104 /**
105  * struct hostapd_wmm_rule - WMM regulatory rule
106  * @min_cwmin: Lower bound of CW_min value
107  * @min_cwmax: Lower bound of CW_max value
108  * @min_aifs: Lower bound of AIFS value
109  * @max_txop: Upper bound of TXOP, value in units of 32 usec
110  */
111 struct hostapd_wmm_rule {
112 	int min_cwmin;
113 	int min_cwmax;
114 	int min_aifs;
115 	int max_txop;
116 };
117 
118 /**
119  * struct hostapd_channel_data - Channel information
120  */
121 struct hostapd_channel_data {
122 	/**
123 	 * chan - Channel number (IEEE 802.11)
124 	 */
125 	short chan;
126 
127 	/**
128 	 * freq - Frequency in MHz
129 	 */
130 	int freq;
131 
132 	/**
133 	 * flag - Channel flags (HOSTAPD_CHAN_*)
134 	 */
135 	int flag;
136 
137 	/**
138 	 * allowed_bw - Allowed channel width bitmask
139 	 *
140 	 * See enum hostapd_chan_width_attr.
141 	 */
142 	u32 allowed_bw;
143 
144 	/**
145 	 * max_tx_power - Regulatory transmit power limit in dBm
146 	 */
147 	u8 max_tx_power;
148 
149 	/**
150 	 * survey_list - Linked list of surveys (struct freq_survey)
151 	 */
152 	struct dl_list survey_list;
153 
154 	/**
155 	 * min_nf - Minimum observed noise floor, in dBm, based on all
156 	 * surveyed channel data
157 	 */
158 	s8 min_nf;
159 
160 #ifdef CONFIG_ACS
161 	/**
162 	 * interference_factor - Computed interference factor on this
163 	 * channel (used internally in src/ap/acs.c; driver wrappers do not
164 	 * need to set this)
165 	 */
166 	long double interference_factor;
167 #endif /* CONFIG_ACS */
168 
169 	/**
170 	 * dfs_cac_ms - DFS CAC time in milliseconds
171 	 */
172 	unsigned int dfs_cac_ms;
173 
174 	/**
175 	 * wmm_rules_valid - Indicates wmm_rules state
176 	 */
177 	int wmm_rules_valid;
178 
179 	/**
180 	 * wmm_rules - WMM regulatory rules
181 	 */
182 	struct hostapd_wmm_rule wmm_rules[WMM_AC_NUM];
183 };
184 
185 #define HE_MAX_MAC_CAPAB_SIZE	6
186 #define HE_MAX_PHY_CAPAB_SIZE	11
187 #define HE_MAX_MCS_CAPAB_SIZE	12
188 #define HE_MAX_PPET_CAPAB_SIZE	25
189 
190 /**
191  * struct he_capabilities - IEEE 802.11ax HE capabilities
192  */
193 struct he_capabilities {
194 	u8 he_supported;
195 	u8 phy_cap[HE_MAX_PHY_CAPAB_SIZE];
196 	u8 mac_cap[HE_MAX_MAC_CAPAB_SIZE];
197 	u8 mcs[HE_MAX_MCS_CAPAB_SIZE];
198 	u8 ppet[HE_MAX_PPET_CAPAB_SIZE];
199 };
200 
201 #define HOSTAPD_MODE_FLAG_HT_INFO_KNOWN BIT(0)
202 #define HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN BIT(1)
203 
204 
205 enum ieee80211_op_mode {
206 	IEEE80211_MODE_INFRA = 0,
207 	IEEE80211_MODE_IBSS = 1,
208 	IEEE80211_MODE_AP = 2,
209 	IEEE80211_MODE_MESH = 5,
210 
211 	/* only add new entries before IEEE80211_MODE_NUM */
212 	IEEE80211_MODE_NUM
213 };
214 
215 /**
216  * struct hostapd_hw_modes - Supported hardware mode information
217  */
218 struct hostapd_hw_modes {
219 	/**
220 	 * mode - Hardware mode
221 	 */
222 	enum hostapd_hw_mode mode;
223 
224 	/**
225 	 * num_channels - Number of entries in the channels array
226 	 */
227 	int num_channels;
228 
229 	/**
230 	 * channels - Array of supported channels
231 	 */
232 	struct hostapd_channel_data *channels;
233 
234 	/**
235 	 * num_rates - Number of entries in the rates array
236 	 */
237 	int num_rates;
238 
239 	/**
240 	 * rates - Array of supported rates in 100 kbps units
241 	 */
242 	int *rates;
243 
244 	/**
245 	 * ht_capab - HT (IEEE 802.11n) capabilities
246 	 */
247 	u16 ht_capab;
248 
249 	/**
250 	 * mcs_set - MCS (IEEE 802.11n) rate parameters
251 	 */
252 	u8 mcs_set[16];
253 
254 	/**
255 	 * a_mpdu_params - A-MPDU (IEEE 802.11n) parameters
256 	 */
257 	u8 a_mpdu_params;
258 
259 	/**
260 	 * vht_capab - VHT (IEEE 802.11ac) capabilities
261 	 */
262 	u32 vht_capab;
263 
264 	/**
265 	 * vht_mcs_set - VHT MCS (IEEE 802.11ac) rate parameters
266 	 */
267 	u8 vht_mcs_set[8];
268 
269 	unsigned int flags; /* HOSTAPD_MODE_FLAG_* */
270 
271 	/**
272 	 * he_capab - HE (IEEE 802.11ax) capabilities
273 	 */
274 	struct he_capabilities he_capab[IEEE80211_MODE_NUM];
275 };
276 
277 
278 #define IEEE80211_CAP_ESS	0x0001
279 #define IEEE80211_CAP_IBSS	0x0002
280 #define IEEE80211_CAP_PRIVACY	0x0010
281 #define IEEE80211_CAP_RRM	0x1000
282 
283 /* DMG (60 GHz) IEEE 802.11ad */
284 /* type - bits 0..1 */
285 #define IEEE80211_CAP_DMG_MASK	0x0003
286 #define IEEE80211_CAP_DMG_IBSS	0x0001 /* Tx by: STA */
287 #define IEEE80211_CAP_DMG_PBSS	0x0002 /* Tx by: PCP */
288 #define IEEE80211_CAP_DMG_AP	0x0003 /* Tx by: AP */
289 
290 #define WPA_SCAN_QUAL_INVALID		BIT(0)
291 #define WPA_SCAN_NOISE_INVALID		BIT(1)
292 #define WPA_SCAN_LEVEL_INVALID		BIT(2)
293 #define WPA_SCAN_LEVEL_DBM		BIT(3)
294 #define WPA_SCAN_ASSOCIATED		BIT(5)
295 
296 /**
297  * struct wpa_scan_res - Scan result for an BSS/IBSS
298  * @flags: information flags about the BSS/IBSS (WPA_SCAN_*)
299  * @bssid: BSSID
300  * @freq: frequency of the channel in MHz (e.g., 2412 = channel 1)
301  * @beacon_int: beacon interval in TUs (host byte order)
302  * @caps: capability information field in host byte order
303  * @qual: signal quality
304  * @noise: noise level
305  * @level: signal level
306  * @tsf: Timestamp
307  * @age: Age of the information in milliseconds (i.e., how many milliseconds
308  * ago the last Beacon or Probe Response frame was received)
309  * @est_throughput: Estimated throughput in kbps (this is calculated during
310  * scan result processing if left zero by the driver wrapper)
311  * @snr: Signal-to-noise ratio in dB (calculated during scan result processing)
312  * @parent_tsf: Time when the Beacon/Probe Response frame was received in terms
313  * of TSF of the BSS specified by %tsf_bssid.
314  * @tsf_bssid: The BSS that %parent_tsf TSF time refers to.
315  * @ie_len: length of the following IE field in octets
316  * @beacon_ie_len: length of the following Beacon IE field in octets
317  *
318  * This structure is used as a generic format for scan results from the
319  * driver. Each driver interface implementation is responsible for converting
320  * the driver or OS specific scan results into this format.
321  *
322  * If the driver does not support reporting all IEs, the IE data structure is
323  * constructed of the IEs that are available. This field will also need to
324  * include SSID in IE format. All drivers are encouraged to be extended to
325  * report all IEs to make it easier to support future additions.
326  *
327  * This structure data is followed by ie_len octets of IEs from Probe Response
328  * frame (or if the driver does not indicate source of IEs, these may also be
329  * from Beacon frame). After the first set of IEs, another set of IEs may follow
330  * (with beacon_ie_len octets of data) if the driver provides both IE sets.
331  */
332 struct wpa_scan_res {
333 	unsigned int flags;
334 	u8 bssid[ETH_ALEN];
335 	int freq;
336 	u16 beacon_int;
337 	u16 caps;
338 	int qual;
339 	int noise;
340 	int level;
341 	u64 tsf;
342 	unsigned int age;
343 	unsigned int est_throughput;
344 	int snr;
345 	u64 parent_tsf;
346 	u8 tsf_bssid[ETH_ALEN];
347 	size_t ie_len;
348 	size_t beacon_ie_len;
349 	/* Followed by ie_len + beacon_ie_len octets of IE data */
350 };
351 
352 /**
353  * struct wpa_scan_results - Scan results
354  * @res: Array of pointers to allocated variable length scan result entries
355  * @num: Number of entries in the scan result array
356  * @fetch_time: Time when the results were fetched from the driver
357  */
358 struct wpa_scan_results {
359 	struct wpa_scan_res **res;
360 	size_t num;
361 	struct os_reltime fetch_time;
362 };
363 
364 /**
365  * struct wpa_interface_info - Network interface information
366  * @next: Pointer to the next interface or NULL if this is the last one
367  * @ifname: Interface name that can be used with init() or init2()
368  * @desc: Human readable adapter description (e.g., vendor/model) or NULL if
369  *	not available
370  * @drv_name: struct wpa_driver_ops::name (note: unlike other strings, this one
371  *	is not an allocated copy, i.e., get_interfaces() caller will not free
372  *	this)
373  */
374 struct wpa_interface_info {
375 	struct wpa_interface_info *next;
376 	char *ifname;
377 	char *desc;
378 	const char *drv_name;
379 };
380 
381 #define WPAS_MAX_SCAN_SSIDS 16
382 
383 /**
384  * struct wpa_driver_scan_ssid - SSIDs to scan for
385  * @ssid - specific SSID to scan for (ProbeReq)
386  *	%NULL or zero-length SSID is used to indicate active scan
387  *	with wildcard SSID.
388  * @ssid_len - Length of the SSID in octets
389  */
390 struct wpa_driver_scan_ssid {
391 	const u8 *ssid;
392 	size_t ssid_len;
393 };
394 
395 /**
396  * struct wpa_driver_scan_params - Scan parameters
397  * Data for struct wpa_driver_ops::scan2().
398  */
399 struct wpa_driver_scan_params {
400 	/**
401 	 * ssids - SSIDs to scan for
402 	 */
403 	struct wpa_driver_scan_ssid ssids[WPAS_MAX_SCAN_SSIDS];
404 
405 	/**
406 	 * num_ssids - Number of entries in ssids array
407 	 * Zero indicates a request for a passive scan.
408 	 */
409 	size_t num_ssids;
410 
411 	/**
412 	 * extra_ies - Extra IE(s) to add into Probe Request or %NULL
413 	 */
414 	const u8 *extra_ies;
415 
416 	/**
417 	 * extra_ies_len - Length of extra_ies in octets
418 	 */
419 	size_t extra_ies_len;
420 
421 	/**
422 	 * freqs - Array of frequencies to scan or %NULL for all frequencies
423 	 *
424 	 * The frequency is set in MHz. The array is zero-terminated.
425 	 */
426 	int *freqs;
427 
428 	/**
429 	 * filter_ssids - Filter for reporting SSIDs
430 	 *
431 	 * This optional parameter can be used to request the driver wrapper to
432 	 * filter scan results to include only the specified SSIDs. %NULL
433 	 * indicates that no filtering is to be done. This can be used to
434 	 * reduce memory needs for scan results in environments that have large
435 	 * number of APs with different SSIDs.
436 	 *
437 	 * The driver wrapper is allowed to take this allocated buffer into its
438 	 * own use by setting the pointer to %NULL. In that case, the driver
439 	 * wrapper is responsible for freeing the buffer with os_free() once it
440 	 * is not needed anymore.
441 	 */
442 	struct wpa_driver_scan_filter {
443 		u8 ssid[SSID_MAX_LEN];
444 		size_t ssid_len;
445 	} *filter_ssids;
446 
447 	/**
448 	 * num_filter_ssids - Number of entries in filter_ssids array
449 	 */
450 	size_t num_filter_ssids;
451 
452 	/**
453 	 * filter_rssi - Filter by RSSI
454 	 *
455 	 * The driver may filter scan results in firmware to reduce host
456 	 * wakeups and thereby save power. Specify the RSSI threshold in s32
457 	 * dBm.
458 	 */
459 	s32 filter_rssi;
460 
461 	/**
462 	 * p2p_probe - Used to disable CCK (802.11b) rates for P2P probes
463 	 *
464 	 * When set, the driver is expected to remove rates 1, 2, 5.5, and 11
465 	 * Mbps from the support rates element(s) in the Probe Request frames
466 	 * and not to transmit the frames at any of those rates.
467 	 */
468 	unsigned int p2p_probe:1;
469 
470 	/**
471 	 * only_new_results - Request driver to report only new results
472 	 *
473 	 * This is used to request the driver to report only BSSes that have
474 	 * been detected after this scan request has been started, i.e., to
475 	 * flush old cached BSS entries.
476 	 */
477 	unsigned int only_new_results:1;
478 
479 	/**
480 	 * low_priority - Requests driver to use a lower scan priority
481 	 *
482 	 * This is used to request the driver to use a lower scan priority
483 	 * if it supports such a thing.
484 	 */
485 	unsigned int low_priority:1;
486 
487 	/**
488 	 * mac_addr_rand - Requests driver to randomize MAC address
489 	 */
490 	unsigned int mac_addr_rand:1;
491 
492 	/**
493 	 * mac_addr - MAC address used with randomization. The address cannot be
494 	 * a multicast one, i.e., bit 0 of byte 0 should not be set.
495 	 */
496 	const u8 *mac_addr;
497 
498 	/**
499 	 * mac_addr_mask - MAC address mask used with randomization.
500 	 *
501 	 * Bits that are 0 in the mask should be randomized. Bits that are 1 in
502 	 * the mask should be taken as is from mac_addr. The mask should not
503 	 * allow the generation of a multicast address, i.e., bit 0 of byte 0
504 	 * must be set.
505 	 */
506 	const u8 *mac_addr_mask;
507 
508 	/**
509 	 * sched_scan_plans - Scan plans for scheduled scan
510 	 *
511 	 * Each scan plan consists of the number of iterations to scan and the
512 	 * interval between scans. When a scan plan finishes (i.e., it was run
513 	 * for the specified number of iterations), the next scan plan is
514 	 * executed. The scan plans are executed in the order they appear in
515 	 * the array (lower index first). The last scan plan will run infinitely
516 	 * (until requested to stop), thus must not specify the number of
517 	 * iterations. All other scan plans must specify the number of
518 	 * iterations.
519 	 */
520 	struct sched_scan_plan {
521 		 u32 interval; /* In seconds */
522 		 u32 iterations; /* Zero to run infinitely */
523 	 } *sched_scan_plans;
524 
525 	/**
526 	 * sched_scan_plans_num - Number of scan plans in sched_scan_plans array
527 	 */
528 	 unsigned int sched_scan_plans_num;
529 
530 	/**
531 	 * sched_scan_start_delay - Delay to use before starting the first scan
532 	 *
533 	 * Delay (in seconds) before scheduling first scan plan cycle. The
534 	 * driver may ignore this parameter and start immediately (or at any
535 	 * other time), if this feature is not supported.
536 	 */
537 	 u32 sched_scan_start_delay;
538 
539 	/**
540 	 * bssid - Specific BSSID to scan for
541 	 *
542 	 * This optional parameter can be used to replace the default wildcard
543 	 * BSSID with a specific BSSID to scan for if results are needed from
544 	 * only a single BSS.
545 	 */
546 	const u8 *bssid;
547 
548 	/**
549 	 * scan_cookie - Unique identification representing the scan request
550 	 *
551 	 * This scan_cookie carries a unique identification representing the
552 	 * scan request if the host driver/kernel supports concurrent scan
553 	 * requests. This cookie is returned from the corresponding driver
554 	 * interface.
555 	 *
556 	 * Note: Unlike other parameters in this structure, scan_cookie is used
557 	 * only to return information instead of setting parameters for the
558 	 * scan.
559 	 */
560 	u64 scan_cookie;
561 
562 	 /**
563 	  * duration - Dwell time on each channel
564 	  *
565 	  * This optional parameter can be used to set the dwell time on each
566 	  * channel. In TUs.
567 	  */
568 	 u16 duration;
569 
570 	 /**
571 	  * duration_mandatory - Whether the specified duration is mandatory
572 	  *
573 	  * If this is set, the duration specified by the %duration field is
574 	  * mandatory (and the driver should reject the scan request if it is
575 	  * unable to comply with the specified duration), otherwise it is the
576 	  * maximum duration and the actual duration may be shorter.
577 	  */
578 	 unsigned int duration_mandatory:1;
579 
580 	/**
581 	 * relative_rssi_set - Whether relative RSSI parameters are set
582 	 */
583 	unsigned int relative_rssi_set:1;
584 
585 	/**
586 	 * relative_rssi - Relative RSSI for reporting better BSSs
587 	 *
588 	 * Amount of RSSI by which a BSS should be better than the current
589 	 * connected BSS to report the new BSS to user space.
590 	 */
591 	s8 relative_rssi;
592 
593 	/**
594 	 * relative_adjust_band - Band to which RSSI should be adjusted
595 	 *
596 	 * The relative_adjust_rssi should be added to the band specified
597 	 * by relative_adjust_band.
598 	 */
599 	enum set_band relative_adjust_band;
600 
601 	/**
602 	 * relative_adjust_rssi - RSSI to be added to relative_adjust_band
603 	 *
604 	 * An amount of relative_band_rssi should be added to the BSSs that
605 	 * belong to the band specified by relative_adjust_band while comparing
606 	 * with other bands for BSS reporting.
607 	 */
608 	s8 relative_adjust_rssi;
609 
610 	/**
611 	 * oce_scan
612 	 *
613 	 * Enable the following OCE scan features: (WFA OCE TechSpec v1.0)
614 	 * - Accept broadcast Probe Response frame.
615 	 * - Probe Request frame deferral and suppression.
616 	 * - Max Channel Time - driver fills FILS request params IE with
617 	 *   Maximum Channel Time.
618 	 * - Send 1st Probe Request frame in rate of minimum 5.5 Mbps.
619 	 */
620 	unsigned int oce_scan:1;
621 
622 	/*
623 	 * NOTE: Whenever adding new parameters here, please make sure
624 	 * wpa_scan_clone_params() and wpa_scan_free_params() get updated with
625 	 * matching changes.
626 	 */
627 };
628 
629 /**
630  * struct wpa_driver_auth_params - Authentication parameters
631  * Data for struct wpa_driver_ops::authenticate().
632  */
633 struct wpa_driver_auth_params {
634 	int freq;
635 	const u8 *bssid;
636 	const u8 *ssid;
637 	size_t ssid_len;
638 	int auth_alg;
639 	const u8 *ie;
640 	size_t ie_len;
641 	const u8 *wep_key[4];
642 	size_t wep_key_len[4];
643 	int wep_tx_keyidx;
644 	int local_state_change;
645 
646 	/**
647 	 * p2p - Whether this connection is a P2P group
648 	 */
649 	int p2p;
650 
651 	/**
652 	 * auth_data - Additional elements for Authentication frame
653 	 *
654 	 * This buffer starts with the Authentication transaction sequence
655 	 * number field. If no special handling of such elements is needed, this
656 	 * pointer is %NULL. This is used with SAE and FILS.
657 	 */
658 	const u8 *auth_data;
659 
660 	/**
661 	 * auth_data_len - Length of auth_data buffer in octets
662 	 */
663 	size_t auth_data_len;
664 };
665 
666 /**
667  * enum wps_mode - WPS mode
668  */
669 enum wps_mode {
670 	/**
671 	 * WPS_MODE_NONE - No WPS provisioning being used
672 	 */
673 	WPS_MODE_NONE,
674 
675 	/**
676 	 * WPS_MODE_OPEN - WPS provisioning with AP that is in open mode
677 	 */
678 	WPS_MODE_OPEN,
679 
680 	/**
681 	 * WPS_MODE_PRIVACY - WPS provisioning with AP that is using protection
682 	 */
683 	WPS_MODE_PRIVACY
684 };
685 
686 /**
687  * struct hostapd_freq_params - Channel parameters
688  */
689 struct hostapd_freq_params {
690 	/**
691 	 * mode - Mode/band (HOSTAPD_MODE_IEEE80211A, ..)
692 	 */
693 	enum hostapd_hw_mode mode;
694 
695 	/**
696 	 * freq - Primary channel center frequency in MHz
697 	 */
698 	int freq;
699 
700 	/**
701 	 * channel - Channel number
702 	 */
703 	int channel;
704 
705 	/**
706 	 * ht_enabled - Whether HT is enabled
707 	 */
708 	int ht_enabled;
709 
710 	/**
711 	 * sec_channel_offset - Secondary channel offset for HT40
712 	 *
713 	 * 0 = HT40 disabled,
714 	 * -1 = HT40 enabled, secondary channel below primary,
715 	 * 1 = HT40 enabled, secondary channel above primary
716 	 */
717 	int sec_channel_offset;
718 
719 	/**
720 	 * vht_enabled - Whether VHT is enabled
721 	 */
722 	int vht_enabled;
723 
724 	/**
725 	 * he_enabled - Whether HE is enabled
726 	 */
727 	int he_enabled;
728 
729 	/**
730 	 * center_freq1 - Segment 0 center frequency in MHz
731 	 *
732 	 * Valid for both HT and VHT.
733 	 */
734 	int center_freq1;
735 
736 	/**
737 	 * center_freq2 - Segment 1 center frequency in MHz
738 	 *
739 	 * Non-zero only for bandwidth 80 and an 80+80 channel
740 	 */
741 	int center_freq2;
742 
743 	/**
744 	 * bandwidth - Channel bandwidth in MHz (20, 40, 80, 160)
745 	 */
746 	int bandwidth;
747 };
748 
749 /**
750  * struct wpa_driver_sta_auth_params - Authentication parameters
751  * Data for struct wpa_driver_ops::sta_auth().
752  */
753 struct wpa_driver_sta_auth_params {
754 
755 	/**
756 	 * own_addr - Source address and BSSID for authentication frame
757 	 */
758 	const u8 *own_addr;
759 
760 	/**
761 	 * addr - MAC address of the station to associate
762 	 */
763 	const u8 *addr;
764 
765 	/**
766 	 * seq - authentication sequence number
767 	 */
768 	u16 seq;
769 
770 	/**
771 	 * status - authentication response status code
772 	 */
773 	u16 status;
774 
775 	/**
776 	 * ie - authentication frame ie buffer
777 	 */
778 	const u8 *ie;
779 
780 	/**
781 	 * len - ie buffer length
782 	 */
783 	size_t len;
784 
785 	/**
786 	 * fils_auth - Indicates whether FILS authentication is being performed
787 	 */
788 	int fils_auth;
789 
790 	/**
791 	 * fils_anonce - ANonce (required for FILS)
792 	 */
793 	u8 fils_anonce[WPA_NONCE_LEN];
794 
795 	/**
796 	 * fils_snonce - SNonce (required for FILS)
797 	*/
798 	u8 fils_snonce[WPA_NONCE_LEN];
799 
800 	/**
801 	 * fils_kek - key for encryption (required for FILS)
802 	 */
803 	u8 fils_kek[WPA_KEK_MAX_LEN];
804 
805 	/**
806 	 * fils_kek_len - Length of the fils_kek in octets (required for FILS)
807 	 */
808 	size_t fils_kek_len;
809 };
810 
811 /**
812  * struct wpa_driver_associate_params - Association parameters
813  * Data for struct wpa_driver_ops::associate().
814  */
815 struct wpa_driver_associate_params {
816 	/**
817 	 * bssid - BSSID of the selected AP
818 	 * This can be %NULL, if ap_scan=2 mode is used and the driver is
819 	 * responsible for selecting with which BSS to associate. */
820 	const u8 *bssid;
821 
822 	/**
823 	 * bssid_hint - BSSID of a proposed AP
824 	 *
825 	 * This indicates which BSS has been found a suitable candidate for
826 	 * initial association for drivers that use driver/firmwate-based BSS
827 	 * selection. Unlike the @bssid parameter, @bssid_hint does not limit
828 	 * the driver from selecting other BSSes in the ESS.
829 	 */
830 	const u8 *bssid_hint;
831 
832 	/**
833 	 * ssid - The selected SSID
834 	 */
835 	const u8 *ssid;
836 
837 	/**
838 	 * ssid_len - Length of the SSID (1..32)
839 	 */
840 	size_t ssid_len;
841 
842 	/**
843 	 * freq - channel parameters
844 	 */
845 	struct hostapd_freq_params freq;
846 
847 	/**
848 	 * freq_hint - Frequency of the channel the proposed AP is using
849 	 *
850 	 * This provides a channel on which a suitable BSS has been found as a
851 	 * hint for the driver. Unlike the @freq parameter, @freq_hint does not
852 	 * limit the driver from selecting other channels for
853 	 * driver/firmware-based BSS selection.
854 	 */
855 	int freq_hint;
856 
857 	/**
858 	 * bg_scan_period - Background scan period in seconds, 0 to disable
859 	 * background scan, or -1 to indicate no change to default driver
860 	 * configuration
861 	 */
862 	int bg_scan_period;
863 
864 	/**
865 	 * beacon_int - Beacon interval for IBSS or 0 to use driver default
866 	 */
867 	int beacon_int;
868 
869 	/**
870 	 * wpa_ie - WPA information element for (Re)Association Request
871 	 * WPA information element to be included in (Re)Association
872 	 * Request (including information element id and length). Use
873 	 * of this WPA IE is optional. If the driver generates the WPA
874 	 * IE, it can use pairwise_suite, group_suite, group_mgmt_suite, and
875 	 * key_mgmt_suite to select proper algorithms. In this case,
876 	 * the driver has to notify wpa_supplicant about the used WPA
877 	 * IE by generating an event that the interface code will
878 	 * convert into EVENT_ASSOCINFO data (see below).
879 	 *
880 	 * When using WPA2/IEEE 802.11i, wpa_ie is used for RSN IE
881 	 * instead. The driver can determine which version is used by
882 	 * looking at the first byte of the IE (0xdd for WPA, 0x30 for
883 	 * WPA2/RSN).
884 	 *
885 	 * When using WPS, wpa_ie is used for WPS IE instead of WPA/RSN IE.
886 	 */
887 	const u8 *wpa_ie;
888 
889 	/**
890 	 * wpa_ie_len - length of the wpa_ie
891 	 */
892 	size_t wpa_ie_len;
893 
894 	/**
895 	 * wpa_proto - Bitfield of WPA_PROTO_* values to indicate WPA/WPA2
896 	 */
897 	unsigned int wpa_proto;
898 
899 	/**
900 	 * pairwise_suite - Selected pairwise cipher suite (WPA_CIPHER_*)
901 	 *
902 	 * This is usually ignored if @wpa_ie is used.
903 	 */
904 	unsigned int pairwise_suite;
905 
906 	/**
907 	 * group_suite - Selected group cipher suite (WPA_CIPHER_*)
908 	 *
909 	 * This is usually ignored if @wpa_ie is used.
910 	 */
911 	unsigned int group_suite;
912 
913 	/**
914 	 * mgmt_group_suite - Selected group management cipher suite (WPA_CIPHER_*)
915 	 *
916 	 * This is usually ignored if @wpa_ie is used.
917 	 */
918 	unsigned int mgmt_group_suite;
919 
920 	/**
921 	 * key_mgmt_suite - Selected key management suite (WPA_KEY_MGMT_*)
922 	 *
923 	 * This is usually ignored if @wpa_ie is used.
924 	 */
925 	unsigned int key_mgmt_suite;
926 
927 	/**
928 	 * auth_alg - Allowed authentication algorithms
929 	 * Bit field of WPA_AUTH_ALG_*
930 	 */
931 	int auth_alg;
932 
933 	/**
934 	 * mode - Operation mode (infra/ibss) IEEE80211_MODE_*
935 	 */
936 	int mode;
937 
938 	/**
939 	 * wep_key - WEP keys for static WEP configuration
940 	 */
941 	const u8 *wep_key[4];
942 
943 	/**
944 	 * wep_key_len - WEP key length for static WEP configuration
945 	 */
946 	size_t wep_key_len[4];
947 
948 	/**
949 	 * wep_tx_keyidx - WEP TX key index for static WEP configuration
950 	 */
951 	int wep_tx_keyidx;
952 
953 	/**
954 	 * mgmt_frame_protection - IEEE 802.11w management frame protection
955 	 */
956 	enum mfp_options mgmt_frame_protection;
957 
958 	/**
959 	 * passphrase - RSN passphrase for PSK
960 	 *
961 	 * This value is made available only for WPA/WPA2-Personal (PSK) and
962 	 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK. This
963 	 * is the 8..63 character ASCII passphrase, if available. Please note
964 	 * that this can be %NULL if passphrase was not used to generate the
965 	 * PSK. In that case, the psk field must be used to fetch the PSK.
966 	 */
967 	const char *passphrase;
968 
969 	/**
970 	 * psk - RSN PSK (alternative for passphrase for PSK)
971 	 *
972 	 * This value is made available only for WPA/WPA2-Personal (PSK) and
973 	 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK. This
974 	 * is the 32-octet (256-bit) PSK, if available. The driver wrapper
975 	 * should be prepared to handle %NULL value as an error.
976 	 */
977 	const u8 *psk;
978 
979 	/**
980 	 * drop_unencrypted - Enable/disable unencrypted frame filtering
981 	 *
982 	 * Configure the driver to drop all non-EAPOL frames (both receive and
983 	 * transmit paths). Unencrypted EAPOL frames (ethertype 0x888e) must
984 	 * still be allowed for key negotiation.
985 	 */
986 	int drop_unencrypted;
987 
988 	/**
989 	 * prev_bssid - Previously used BSSID in this ESS
990 	 *
991 	 * When not %NULL, this is a request to use reassociation instead of
992 	 * association.
993 	 */
994 	const u8 *prev_bssid;
995 
996 	/**
997 	 * wps - WPS mode
998 	 *
999 	 * If the driver needs to do special configuration for WPS association,
1000 	 * this variable provides more information on what type of association
1001 	 * is being requested. Most drivers should not need ot use this.
1002 	 */
1003 	enum wps_mode wps;
1004 
1005 	/**
1006 	 * p2p - Whether this connection is a P2P group
1007 	 */
1008 	int p2p;
1009 
1010 	/**
1011 	 * uapsd - UAPSD parameters for the network
1012 	 * -1 = do not change defaults
1013 	 * AP mode: 1 = enabled, 0 = disabled
1014 	 * STA mode: bits 0..3 UAPSD enabled for VO,VI,BK,BE
1015 	 */
1016 	int uapsd;
1017 
1018 	/**
1019 	 * fixed_bssid - Whether to force this BSSID in IBSS mode
1020 	 * 1 = Fix this BSSID and prevent merges.
1021 	 * 0 = Do not fix BSSID.
1022 	 */
1023 	int fixed_bssid;
1024 
1025 	/**
1026 	 * fixed_freq - Fix control channel in IBSS mode
1027 	 * 0 = don't fix control channel (default)
1028 	 * 1 = fix control channel; this prevents IBSS merging with another
1029 	 *	channel
1030 	 */
1031 	int fixed_freq;
1032 
1033 	/**
1034 	 * disable_ht - Disable HT (IEEE 802.11n) for this connection
1035 	 */
1036 	int disable_ht;
1037 
1038 	/**
1039 	 * htcaps - HT Capabilities over-rides
1040 	 *
1041 	 * Only bits set in the mask will be used, and not all values are used
1042 	 * by the kernel anyway. Currently, MCS, MPDU and MSDU fields are used.
1043 	 *
1044 	 * Pointer to struct ieee80211_ht_capabilities.
1045 	 */
1046 	const u8 *htcaps;
1047 
1048 	/**
1049 	 * htcaps_mask - HT Capabilities over-rides mask
1050 	 *
1051 	 * Pointer to struct ieee80211_ht_capabilities.
1052 	 */
1053 	const u8 *htcaps_mask;
1054 
1055 #ifdef CONFIG_VHT_OVERRIDES
1056 	/**
1057 	 * disable_vht - Disable VHT for this connection
1058 	 */
1059 	int disable_vht;
1060 
1061 	/**
1062 	 * VHT capability overrides.
1063 	 */
1064 	const struct ieee80211_vht_capabilities *vhtcaps;
1065 	const struct ieee80211_vht_capabilities *vhtcaps_mask;
1066 #endif /* CONFIG_VHT_OVERRIDES */
1067 
1068 	/**
1069 	 * req_key_mgmt_offload - Request key management offload for connection
1070 	 *
1071 	 * Request key management offload for this connection if the device
1072 	 * supports it.
1073 	 */
1074 	int req_key_mgmt_offload;
1075 
1076 	/**
1077 	 * req_handshake_offload - Request EAPOL handshake offload
1078 	 *
1079 	 * Request EAPOL handshake offload for this connection if the device
1080 	 * supports it.
1081 	 */
1082 	int req_handshake_offload;
1083 
1084 	/**
1085 	 * Flag for indicating whether this association includes support for
1086 	 * RRM (Radio Resource Measurements)
1087 	 */
1088 	int rrm_used;
1089 
1090 	/**
1091 	 * pbss - If set, connect to a PCP in a PBSS. Otherwise, connect to an
1092 	 * AP as usual. Valid for DMG network only.
1093 	 */
1094 	int pbss;
1095 
1096 	/**
1097 	 * fils_kek - KEK for FILS association frame protection (AES-SIV)
1098 	 */
1099 	const u8 *fils_kek;
1100 
1101 	/**
1102 	 * fils_kek_len: Length of fils_kek in bytes
1103 	 */
1104 	size_t fils_kek_len;
1105 
1106 	/**
1107 	 * fils_nonces - Nonces for FILS association frame protection
1108 	 * (AES-SIV AAD)
1109 	 */
1110 	const u8 *fils_nonces;
1111 
1112 	/**
1113 	 * fils_nonces_len: Length of fils_nonce in bytes
1114 	 */
1115 	size_t fils_nonces_len;
1116 
1117 	/**
1118 	 * fils_erp_username - Username part of keyName-NAI
1119 	 */
1120 	const u8 *fils_erp_username;
1121 
1122 	/**
1123 	 * fils_erp_username_len - Length of fils_erp_username in bytes
1124 	 */
1125 	size_t fils_erp_username_len;
1126 
1127 	/**
1128 	 * fils_erp_realm - Realm/domain name to use in FILS ERP
1129 	 */
1130 	const u8 *fils_erp_realm;
1131 
1132 	/**
1133 	 * fils_erp_realm_len - Length of fils_erp_realm in bytes
1134 	 */
1135 	size_t fils_erp_realm_len;
1136 
1137 	/**
1138 	 * fils_erp_next_seq_num - The next sequence number to use in FILS ERP
1139 	 * messages
1140 	 */
1141 	u16 fils_erp_next_seq_num;
1142 
1143 	/**
1144 	 * fils_erp_rrk - Re-authentication root key (rRK) for the keyName-NAI
1145 	 * specified by fils_erp_username@fils_erp_realm.
1146 	 */
1147 	const u8 *fils_erp_rrk;
1148 
1149 	/**
1150 	 * fils_erp_rrk_len - Length of fils_erp_rrk in bytes
1151 	 */
1152 	size_t fils_erp_rrk_len;
1153 };
1154 
1155 enum hide_ssid {
1156 	NO_SSID_HIDING,
1157 	HIDDEN_SSID_ZERO_LEN,
1158 	HIDDEN_SSID_ZERO_CONTENTS
1159 };
1160 
1161 enum ch_switch_state {
1162 	CH_SW_STARTED,
1163 	CH_SW_FINISHED
1164 };
1165 
1166 struct wowlan_triggers {
1167 	u8 any;
1168 	u8 disconnect;
1169 	u8 magic_pkt;
1170 	u8 gtk_rekey_failure;
1171 	u8 eap_identity_req;
1172 	u8 four_way_handshake;
1173 	u8 rfkill_release;
1174 };
1175 
1176 struct wpa_driver_ap_params {
1177 	/**
1178 	 * head - Beacon head from IEEE 802.11 header to IEs before TIM IE
1179 	 */
1180 	u8 *head;
1181 
1182 	/**
1183 	 * head_len - Length of the head buffer in octets
1184 	 */
1185 	size_t head_len;
1186 
1187 	/**
1188 	 * tail - Beacon tail following TIM IE
1189 	 */
1190 	u8 *tail;
1191 
1192 	/**
1193 	 * tail_len - Length of the tail buffer in octets
1194 	 */
1195 	size_t tail_len;
1196 
1197 	/**
1198 	 * dtim_period - DTIM period
1199 	 */
1200 	int dtim_period;
1201 
1202 	/**
1203 	 * beacon_int - Beacon interval
1204 	 */
1205 	int beacon_int;
1206 
1207 	/**
1208 	 * basic_rates: -1 terminated array of basic rates in 100 kbps
1209 	 *
1210 	 * This parameter can be used to set a specific basic rate set for the
1211 	 * BSS. If %NULL, default basic rate set is used.
1212 	 */
1213 	int *basic_rates;
1214 
1215 	/**
1216 	 * beacon_rate: Beacon frame data rate
1217 	 *
1218 	 * This parameter can be used to set a specific Beacon frame data rate
1219 	 * for the BSS. The interpretation of this value depends on the
1220 	 * rate_type (legacy: in 100 kbps units, HT: HT-MCS, VHT: VHT-MCS). If
1221 	 * beacon_rate == 0 and rate_type == 0 (BEACON_RATE_LEGACY), the default
1222 	 * Beacon frame data rate is used.
1223 	 */
1224 	unsigned int beacon_rate;
1225 
1226 	/**
1227 	 * beacon_rate_type: Beacon data rate type (legacy/HT/VHT)
1228 	 */
1229 	enum beacon_rate_type rate_type;
1230 
1231 	/**
1232 	 * proberesp - Probe Response template
1233 	 *
1234 	 * This is used by drivers that reply to Probe Requests internally in
1235 	 * AP mode and require the full Probe Response template.
1236 	 */
1237 	u8 *proberesp;
1238 
1239 	/**
1240 	 * proberesp_len - Length of the proberesp buffer in octets
1241 	 */
1242 	size_t proberesp_len;
1243 
1244 	/**
1245 	 * ssid - The SSID to use in Beacon/Probe Response frames
1246 	 */
1247 	const u8 *ssid;
1248 
1249 	/**
1250 	 * ssid_len - Length of the SSID (1..32)
1251 	 */
1252 	size_t ssid_len;
1253 
1254 	/**
1255 	 * hide_ssid - Whether to hide the SSID
1256 	 */
1257 	enum hide_ssid hide_ssid;
1258 
1259 	/**
1260 	 * pairwise_ciphers - WPA_CIPHER_* bitfield
1261 	 */
1262 	unsigned int pairwise_ciphers;
1263 
1264 	/**
1265 	 * group_cipher - WPA_CIPHER_*
1266 	 */
1267 	unsigned int group_cipher;
1268 
1269 	/**
1270 	 * key_mgmt_suites - WPA_KEY_MGMT_* bitfield
1271 	 */
1272 	unsigned int key_mgmt_suites;
1273 
1274 	/**
1275 	 * auth_algs - WPA_AUTH_ALG_* bitfield
1276 	 */
1277 	unsigned int auth_algs;
1278 
1279 	/**
1280 	 * wpa_version - WPA_PROTO_* bitfield
1281 	 */
1282 	unsigned int wpa_version;
1283 
1284 	/**
1285 	 * privacy - Whether privacy is used in the BSS
1286 	 */
1287 	int privacy;
1288 
1289 	/**
1290 	 * beacon_ies - WPS/P2P IE(s) for Beacon frames
1291 	 *
1292 	 * This is used to add IEs like WPS IE and P2P IE by drivers that do
1293 	 * not use the full Beacon template.
1294 	 */
1295 	const struct wpabuf *beacon_ies;
1296 
1297 	/**
1298 	 * proberesp_ies - P2P/WPS IE(s) for Probe Response frames
1299 	 *
1300 	 * This is used to add IEs like WPS IE and P2P IE by drivers that
1301 	 * reply to Probe Request frames internally.
1302 	 */
1303 	const struct wpabuf *proberesp_ies;
1304 
1305 	/**
1306 	 * assocresp_ies - WPS IE(s) for (Re)Association Response frames
1307 	 *
1308 	 * This is used to add IEs like WPS IE by drivers that reply to
1309 	 * (Re)Association Request frames internally.
1310 	 */
1311 	const struct wpabuf *assocresp_ies;
1312 
1313 	/**
1314 	 * isolate - Whether to isolate frames between associated stations
1315 	 *
1316 	 * If this is non-zero, the AP is requested to disable forwarding of
1317 	 * frames between associated stations.
1318 	 */
1319 	int isolate;
1320 
1321 	/**
1322 	 * cts_protect - Whether CTS protection is enabled
1323 	 */
1324 	int cts_protect;
1325 
1326 	/**
1327 	 * preamble - Whether short preamble is enabled
1328 	 */
1329 	int preamble;
1330 
1331 	/**
1332 	 * short_slot_time - Whether short slot time is enabled
1333 	 *
1334 	 * 0 = short slot time disable, 1 = short slot time enabled, -1 = do
1335 	 * not set (e.g., when 802.11g mode is not in use)
1336 	 */
1337 	int short_slot_time;
1338 
1339 	/**
1340 	 * ht_opmode - HT operation mode or -1 if HT not in use
1341 	 */
1342 	int ht_opmode;
1343 
1344 	/**
1345 	 * interworking - Whether Interworking is enabled
1346 	 */
1347 	int interworking;
1348 
1349 	/**
1350 	 * hessid - Homogeneous ESS identifier or %NULL if not set
1351 	 */
1352 	const u8 *hessid;
1353 
1354 	/**
1355 	 * access_network_type - Access Network Type (0..15)
1356 	 *
1357 	 * This is used for filtering Probe Request frames when Interworking is
1358 	 * enabled.
1359 	 */
1360 	u8 access_network_type;
1361 
1362 	/**
1363 	 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
1364 	 *
1365 	 * This is used by driver which advertises this capability.
1366 	 */
1367 	int ap_max_inactivity;
1368 
1369 	/**
1370 	 * ctwindow - Client Traffic Window (in TUs)
1371 	 */
1372 	u8 p2p_go_ctwindow;
1373 
1374 	/**
1375 	 * smps_mode - SMPS mode
1376 	 *
1377 	 * SMPS mode to be used by the AP, specified as the relevant bits of
1378 	 * ht_capab (i.e. HT_CAP_INFO_SMPS_*).
1379 	 */
1380 	unsigned int smps_mode;
1381 
1382 	/**
1383 	 * disable_dgaf - Whether group-addressed frames are disabled
1384 	 */
1385 	int disable_dgaf;
1386 
1387 	/**
1388 	 * osen - Whether OSEN security is enabled
1389 	 */
1390 	int osen;
1391 
1392 	/**
1393 	 * freq - Channel parameters for dynamic bandwidth changes
1394 	 */
1395 	struct hostapd_freq_params *freq;
1396 
1397 	/**
1398 	 * reenable - Whether this is to re-enable beaconing
1399 	 */
1400 	int reenable;
1401 
1402 	/**
1403 	 * pbss - Whether to start a PCP (in PBSS) instead of an AP in
1404 	 * infrastructure BSS. Valid only for DMG network.
1405 	 */
1406 	int pbss;
1407 
1408 	/**
1409 	 * multicast_to_unicast - Whether to use multicast_to_unicast
1410 	 *
1411 	 * If this is non-zero, the AP is requested to perform multicast to
1412 	 * unicast conversion for ARP, IPv4, and IPv6 frames (possibly within
1413 	 * 802.1Q). If enabled, such frames are to be sent to each station
1414 	 * separately, with the DA replaced by their own MAC address rather
1415 	 * than the group address.
1416 	 *
1417 	 * Note that this may break certain expectations of the receiver, such
1418 	 * as the ability to drop unicast IP packets received within multicast
1419 	 * L2 frames, or the ability to not send ICMP destination unreachable
1420 	 * messages for packets received in L2 multicast (which is required,
1421 	 * but the receiver can't tell the difference if this new option is
1422 	 * enabled.)
1423 	 *
1424 	 * This also doesn't implement the 802.11 DMS (directed multicast
1425 	 * service).
1426 	 */
1427 	int multicast_to_unicast;
1428 
1429 	/**
1430 	 * ftm_responder - Whether FTM responder is enabled
1431 	 */
1432 	int ftm_responder;
1433 
1434 	/**
1435 	 * lci - Binary data, the content of an LCI report IE with type 8 as
1436 	 * defined in IEEE Std 802.11-2016, 9.4.2.22.10
1437 	 */
1438 	const struct wpabuf *lci;
1439 
1440 	/**
1441 	 * civic - Binary data, the content of a measurement report IE with
1442 	 * type 11 as defined in IEEE Std 802.11-2016, 9.4.2.22.13
1443 	 */
1444 	const struct wpabuf *civic;
1445 };
1446 
1447 struct wpa_driver_mesh_bss_params {
1448 #define WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS		0x00000001
1449 #define WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT	0x00000002
1450 #define WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS	0x00000004
1451 #define WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE		0x00000008
1452 #define WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD	0x00000010
1453 	/*
1454 	 * TODO: Other mesh configuration parameters would go here.
1455 	 * See NL80211_MESHCONF_* for all the mesh config parameters.
1456 	 */
1457 	unsigned int flags;
1458 	int auto_plinks;
1459 	int peer_link_timeout;
1460 	int max_peer_links;
1461 	int rssi_threshold;
1462 	u16 ht_opmode;
1463 };
1464 
1465 struct wpa_driver_mesh_join_params {
1466 	const u8 *meshid;
1467 	int meshid_len;
1468 	const int *basic_rates;
1469 	const u8 *ies;
1470 	int ie_len;
1471 	struct hostapd_freq_params freq;
1472 	int beacon_int;
1473 	int dtim_period;
1474 	struct wpa_driver_mesh_bss_params conf;
1475 #define WPA_DRIVER_MESH_FLAG_USER_MPM	0x00000001
1476 #define WPA_DRIVER_MESH_FLAG_DRIVER_MPM	0x00000002
1477 #define WPA_DRIVER_MESH_FLAG_SAE_AUTH	0x00000004
1478 #define WPA_DRIVER_MESH_FLAG_AMPE	0x00000008
1479 	unsigned int flags;
1480 };
1481 
1482 /**
1483  * struct wpa_driver_capa - Driver capability information
1484  */
1485 struct wpa_driver_capa {
1486 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA		0x00000001
1487 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2		0x00000002
1488 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK	0x00000004
1489 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK	0x00000008
1490 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE	0x00000010
1491 #define WPA_DRIVER_CAPA_KEY_MGMT_FT		0x00000020
1492 #define WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK		0x00000040
1493 #define WPA_DRIVER_CAPA_KEY_MGMT_WAPI_PSK	0x00000080
1494 #define WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B	0x00000100
1495 #define WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192	0x00000200
1496 #define WPA_DRIVER_CAPA_KEY_MGMT_OWE		0x00000400
1497 #define WPA_DRIVER_CAPA_KEY_MGMT_DPP		0x00000800
1498 #define WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA256    0x00001000
1499 #define WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA384    0x00002000
1500 #define WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA256 0x00004000
1501 #define WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA384 0x00008000
1502 #define WPA_DRIVER_CAPA_KEY_MGMT_SAE 		0x00010000
1503 	/** Bitfield of supported key management suites */
1504 	unsigned int key_mgmt;
1505 
1506 #define WPA_DRIVER_CAPA_ENC_WEP40	0x00000001
1507 #define WPA_DRIVER_CAPA_ENC_WEP104	0x00000002
1508 #define WPA_DRIVER_CAPA_ENC_TKIP	0x00000004
1509 #define WPA_DRIVER_CAPA_ENC_CCMP	0x00000008
1510 #define WPA_DRIVER_CAPA_ENC_WEP128	0x00000010
1511 #define WPA_DRIVER_CAPA_ENC_GCMP	0x00000020
1512 #define WPA_DRIVER_CAPA_ENC_GCMP_256	0x00000040
1513 #define WPA_DRIVER_CAPA_ENC_CCMP_256	0x00000080
1514 #define WPA_DRIVER_CAPA_ENC_BIP		0x00000100
1515 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_128	0x00000200
1516 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_256	0x00000400
1517 #define WPA_DRIVER_CAPA_ENC_BIP_CMAC_256	0x00000800
1518 #define WPA_DRIVER_CAPA_ENC_GTK_NOT_USED	0x00001000
1519 	/** Bitfield of supported cipher suites */
1520 	unsigned int enc;
1521 
1522 #define WPA_DRIVER_AUTH_OPEN		0x00000001
1523 #define WPA_DRIVER_AUTH_SHARED		0x00000002
1524 #define WPA_DRIVER_AUTH_LEAP		0x00000004
1525 	/** Bitfield of supported IEEE 802.11 authentication algorithms */
1526 	unsigned int auth;
1527 
1528 /** Driver generated WPA/RSN IE */
1529 #define WPA_DRIVER_FLAGS_DRIVER_IE	0x00000001
1530 /** Driver needs static WEP key setup after association command */
1531 #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC 0x00000002
1532 /** Driver takes care of all DFS operations */
1533 #define WPA_DRIVER_FLAGS_DFS_OFFLOAD			0x00000004
1534 /** Driver takes care of RSN 4-way handshake internally; PMK is configured with
1535  * struct wpa_driver_ops::set_key using alg = WPA_ALG_PMK */
1536 #define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X		0x00000008
1537 /** Driver is for a wired Ethernet interface */
1538 #define WPA_DRIVER_FLAGS_WIRED		0x00000010
1539 /** Driver provides separate commands for authentication and association (SME in
1540  * wpa_supplicant). */
1541 #define WPA_DRIVER_FLAGS_SME		0x00000020
1542 /** Driver supports AP mode */
1543 #define WPA_DRIVER_FLAGS_AP		0x00000040
1544 /** Driver needs static WEP key setup after association has been completed */
1545 #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE	0x00000080
1546 /** Driver supports dynamic HT 20/40 MHz channel changes during BSS lifetime */
1547 #define WPA_DRIVER_FLAGS_HT_2040_COEX			0x00000100
1548 /** Driver supports concurrent P2P operations */
1549 #define WPA_DRIVER_FLAGS_P2P_CONCURRENT	0x00000200
1550 /**
1551  * Driver uses the initial interface as a dedicated management interface, i.e.,
1552  * it cannot be used for P2P group operations or non-P2P purposes.
1553  */
1554 #define WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE	0x00000400
1555 /** This interface is P2P capable (P2P GO or P2P Client) */
1556 #define WPA_DRIVER_FLAGS_P2P_CAPABLE	0x00000800
1557 /** Driver supports station and key removal when stopping an AP */
1558 #define WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT		0x00001000
1559 /**
1560  * Driver uses the initial interface for P2P management interface and non-P2P
1561  * purposes (e.g., connect to infra AP), but this interface cannot be used for
1562  * P2P group operations.
1563  */
1564 #define WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P		0x00002000
1565 /**
1566  * Driver is known to use sane error codes, i.e., when it indicates that
1567  * something (e.g., association) fails, there was indeed a failure and the
1568  * operation does not end up getting completed successfully later.
1569  */
1570 #define WPA_DRIVER_FLAGS_SANE_ERROR_CODES		0x00004000
1571 /** Driver supports off-channel TX */
1572 #define WPA_DRIVER_FLAGS_OFFCHANNEL_TX			0x00008000
1573 /** Driver indicates TX status events for EAPOL Data frames */
1574 #define WPA_DRIVER_FLAGS_EAPOL_TX_STATUS		0x00010000
1575 /** Driver indicates TX status events for Deauth/Disassoc frames */
1576 #define WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS		0x00020000
1577 /** Driver supports roaming (BSS selection) in firmware */
1578 #define WPA_DRIVER_FLAGS_BSS_SELECTION			0x00040000
1579 /** Driver supports operating as a TDLS peer */
1580 #define WPA_DRIVER_FLAGS_TDLS_SUPPORT			0x00080000
1581 /** Driver requires external TDLS setup/teardown/discovery */
1582 #define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP		0x00100000
1583 /** Driver indicates support for Probe Response offloading in AP mode */
1584 #define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD		0x00200000
1585 /** Driver supports U-APSD in AP mode */
1586 #define WPA_DRIVER_FLAGS_AP_UAPSD			0x00400000
1587 /** Driver supports inactivity timer in AP mode */
1588 #define WPA_DRIVER_FLAGS_INACTIVITY_TIMER		0x00800000
1589 /** Driver expects user space implementation of MLME in AP mode */
1590 #define WPA_DRIVER_FLAGS_AP_MLME			0x01000000
1591 /** Driver supports SAE with user space SME */
1592 #define WPA_DRIVER_FLAGS_SAE				0x02000000
1593 /** Driver makes use of OBSS scan mechanism in wpa_supplicant */
1594 #define WPA_DRIVER_FLAGS_OBSS_SCAN			0x04000000
1595 /** Driver supports IBSS (Ad-hoc) mode */
1596 #define WPA_DRIVER_FLAGS_IBSS				0x08000000
1597 /** Driver supports radar detection */
1598 #define WPA_DRIVER_FLAGS_RADAR				0x10000000
1599 /** Driver supports a dedicated interface for P2P Device */
1600 #define WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE		0x20000000
1601 /** Driver supports QoS Mapping */
1602 #define WPA_DRIVER_FLAGS_QOS_MAPPING			0x40000000
1603 /** Driver supports CSA in AP mode */
1604 #define WPA_DRIVER_FLAGS_AP_CSA				0x80000000
1605 /** Driver supports mesh */
1606 #define WPA_DRIVER_FLAGS_MESH			0x0000000100000000ULL
1607 /** Driver support ACS offload */
1608 #define WPA_DRIVER_FLAGS_ACS_OFFLOAD		0x0000000200000000ULL
1609 /** Driver supports key management offload */
1610 #define WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD	0x0000000400000000ULL
1611 /** Driver supports TDLS channel switching */
1612 #define WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH	0x0000000800000000ULL
1613 /** Driver supports IBSS with HT datarates */
1614 #define WPA_DRIVER_FLAGS_HT_IBSS		0x0000001000000000ULL
1615 /** Driver supports IBSS with VHT datarates */
1616 #define WPA_DRIVER_FLAGS_VHT_IBSS		0x0000002000000000ULL
1617 /** Driver supports automatic band selection */
1618 #define WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY	0x0000004000000000ULL
1619 /** Driver supports simultaneous off-channel operations */
1620 #define WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS	0x0000008000000000ULL
1621 /** Driver supports full AP client state */
1622 #define WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE	0x0000010000000000ULL
1623 /** Driver supports P2P Listen offload */
1624 #define WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD     0x0000020000000000ULL
1625 /** Driver supports FILS */
1626 #define WPA_DRIVER_FLAGS_SUPPORT_FILS		0x0000040000000000ULL
1627 /** Driver supports Beacon frame TX rate configuration (legacy rates) */
1628 #define WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY	0x0000080000000000ULL
1629 /** Driver supports Beacon frame TX rate configuration (HT rates) */
1630 #define WPA_DRIVER_FLAGS_BEACON_RATE_HT		0x0000100000000000ULL
1631 /** Driver supports Beacon frame TX rate configuration (VHT rates) */
1632 #define WPA_DRIVER_FLAGS_BEACON_RATE_VHT	0x0000200000000000ULL
1633 /** Driver supports mgmt_tx with random TX address in non-connected state */
1634 #define WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA	0x0000400000000000ULL
1635 /** Driver supports mgmt_tx with random TX addr in connected state */
1636 #define WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA_CONNECTED	0x0000800000000000ULL
1637 /** Driver supports better BSS reporting with sched_scan in connected mode */
1638 #define WPA_DRIVER_FLAGS_SCHED_SCAN_RELATIVE_RSSI	0x0001000000000000ULL
1639 /** Driver supports HE capabilities */
1640 #define WPA_DRIVER_FLAGS_HE_CAPABILITIES	0x0002000000000000ULL
1641 /** Driver supports FILS shared key offload */
1642 #define WPA_DRIVER_FLAGS_FILS_SK_OFFLOAD	0x0004000000000000ULL
1643 /** Driver supports all OCE STA specific mandatory features */
1644 #define WPA_DRIVER_FLAGS_OCE_STA		0x0008000000000000ULL
1645 /** Driver supports all OCE AP specific mandatory features */
1646 #define WPA_DRIVER_FLAGS_OCE_AP			0x0010000000000000ULL
1647 /**
1648  * Driver supports all OCE STA-CFON specific mandatory features only.
1649  * If a driver sets this bit but not the %WPA_DRIVER_FLAGS_OCE_AP, the
1650  * userspace shall assume that this driver may not support all OCE AP
1651  * functionality but can support only OCE STA-CFON functionality.
1652  */
1653 #define WPA_DRIVER_FLAGS_OCE_STA_CFON		0x0020000000000000ULL
1654 /** Driver supports MFP-optional in the connect command */
1655 #define WPA_DRIVER_FLAGS_MFP_OPTIONAL		0x0040000000000000ULL
1656 /** Driver is a self-managed regulatory device */
1657 #define WPA_DRIVER_FLAGS_SELF_MANAGED_REGULATORY       0x0080000000000000ULL
1658 /** Driver supports FTM responder functionality */
1659 #define WPA_DRIVER_FLAGS_FTM_RESPONDER		0x0100000000000000ULL
1660 /** Driver support 4-way handshake offload for WPA-Personal */
1661 #define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK	0x0200000000000000ULL
1662 	u64 flags;
1663 
1664 #define FULL_AP_CLIENT_STATE_SUPP(drv_flags) \
1665 	(drv_flags & WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE)
1666 
1667 #define WPA_DRIVER_SMPS_MODE_STATIC			0x00000001
1668 #define WPA_DRIVER_SMPS_MODE_DYNAMIC			0x00000002
1669 	unsigned int smps_modes;
1670 
1671 	unsigned int wmm_ac_supported:1;
1672 
1673 	unsigned int mac_addr_rand_scan_supported:1;
1674 	unsigned int mac_addr_rand_sched_scan_supported:1;
1675 
1676 	/** Maximum number of supported active probe SSIDs */
1677 	int max_scan_ssids;
1678 
1679 	/** Maximum number of supported active probe SSIDs for sched_scan */
1680 	int max_sched_scan_ssids;
1681 
1682 	/** Maximum number of supported scan plans for scheduled scan */
1683 	unsigned int max_sched_scan_plans;
1684 
1685 	/** Maximum interval in a scan plan. In seconds */
1686 	u32 max_sched_scan_plan_interval;
1687 
1688 	/** Maximum number of iterations in a single scan plan */
1689 	u32 max_sched_scan_plan_iterations;
1690 
1691 	/** Whether sched_scan (offloaded scanning) is supported */
1692 	int sched_scan_supported;
1693 
1694 	/** Maximum number of supported match sets for sched_scan */
1695 	int max_match_sets;
1696 
1697 	/**
1698 	 * max_remain_on_chan - Maximum remain-on-channel duration in msec
1699 	 */
1700 	unsigned int max_remain_on_chan;
1701 
1702 	/**
1703 	 * max_stations - Maximum number of associated stations the driver
1704 	 * supports in AP mode
1705 	 */
1706 	unsigned int max_stations;
1707 
1708 	/**
1709 	 * probe_resp_offloads - Bitmap of supported protocols by the driver
1710 	 * for Probe Response offloading.
1711 	 */
1712 /** Driver Probe Response offloading support for WPS ver. 1 */
1713 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS		0x00000001
1714 /** Driver Probe Response offloading support for WPS ver. 2 */
1715 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2		0x00000002
1716 /** Driver Probe Response offloading support for P2P */
1717 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P		0x00000004
1718 /** Driver Probe Response offloading support for IEEE 802.11u (Interworking) */
1719 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING	0x00000008
1720 	unsigned int probe_resp_offloads;
1721 
1722 	unsigned int max_acl_mac_addrs;
1723 
1724 	/**
1725 	 * Number of supported concurrent channels
1726 	 */
1727 	unsigned int num_multichan_concurrent;
1728 
1729 	/**
1730 	 * extended_capa - extended capabilities in driver/device
1731 	 *
1732 	 * Must be allocated and freed by driver and the pointers must be
1733 	 * valid for the lifetime of the driver, i.e., freed in deinit()
1734 	 */
1735 	const u8 *extended_capa, *extended_capa_mask;
1736 	unsigned int extended_capa_len;
1737 
1738 	struct wowlan_triggers wowlan_triggers;
1739 
1740 /** Driver adds the DS Params Set IE in Probe Request frames */
1741 #define WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES	0x00000001
1742 /** Driver adds the WFA TPC IE in Probe Request frames */
1743 #define WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES		0x00000002
1744 /** Driver handles quiet period requests */
1745 #define WPA_DRIVER_FLAGS_QUIET				0x00000004
1746 /**
1747  * Driver is capable of inserting the current TX power value into the body of
1748  * transmitted frames.
1749  * Background: Some Action frames include a TPC Report IE. This IE contains a
1750  * TX power field, which has to be updated by lower layers. One such Action
1751  * frame is Link Measurement Report (part of RRM). Another is TPC Report (part
1752  * of spectrum management). Note that this insertion takes place at a fixed
1753  * offset, namely the 6th byte in the Action frame body.
1754  */
1755 #define WPA_DRIVER_FLAGS_TX_POWER_INSERTION		0x00000008
1756 /**
1757  * Driver supports RRM. With this support, the driver will accept to use RRM in
1758  * (Re)Association Request frames, without supporting quiet period.
1759  */
1760 #define WPA_DRIVER_FLAGS_SUPPORT_RRM			0x00000010
1761 
1762 /** Driver supports setting the scan dwell time */
1763 #define WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL		0x00000020
1764 /** Driver supports Beacon Report Measurement */
1765 #define WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT		0x00000040
1766 
1767 	u32 rrm_flags;
1768 
1769 	/* Driver concurrency capabilities */
1770 	unsigned int conc_capab;
1771 	/* Maximum number of concurrent channels on 2.4 GHz */
1772 	unsigned int max_conc_chan_2_4;
1773 	/* Maximum number of concurrent channels on 5 GHz */
1774 	unsigned int max_conc_chan_5_0;
1775 
1776 	/* Maximum number of supported CSA counters */
1777 	u16 max_csa_counters;
1778 };
1779 
1780 
1781 struct hostapd_data;
1782 
1783 #define STA_DRV_DATA_TX_MCS BIT(0)
1784 #define STA_DRV_DATA_RX_MCS BIT(1)
1785 #define STA_DRV_DATA_TX_VHT_MCS BIT(2)
1786 #define STA_DRV_DATA_RX_VHT_MCS BIT(3)
1787 #define STA_DRV_DATA_TX_VHT_NSS BIT(4)
1788 #define STA_DRV_DATA_RX_VHT_NSS BIT(5)
1789 #define STA_DRV_DATA_TX_SHORT_GI BIT(6)
1790 #define STA_DRV_DATA_RX_SHORT_GI BIT(7)
1791 #define STA_DRV_DATA_LAST_ACK_RSSI BIT(8)
1792 
1793 struct hostap_sta_driver_data {
1794 	unsigned long rx_packets, tx_packets;
1795 	unsigned long long rx_bytes, tx_bytes;
1796 	unsigned long long rx_airtime, tx_airtime;
1797 	int bytes_64bit; /* whether 64-bit byte counters are supported */
1798 	unsigned long current_tx_rate;
1799 	unsigned long current_rx_rate;
1800 	unsigned long inactive_msec;
1801 	unsigned long flags; /* bitfield of STA_DRV_DATA_* */
1802 	unsigned long num_ps_buf_frames;
1803 	unsigned long tx_retry_failed;
1804 	unsigned long tx_retry_count;
1805 	s8 last_ack_rssi;
1806 	unsigned long backlog_packets;
1807 	unsigned long backlog_bytes;
1808 	s8 signal;
1809 	u8 rx_vhtmcs;
1810 	u8 tx_vhtmcs;
1811 	u8 rx_mcs;
1812 	u8 tx_mcs;
1813 	u8 rx_vht_nss;
1814 	u8 tx_vht_nss;
1815 };
1816 
1817 struct hostapd_sta_add_params {
1818 	const u8 *addr;
1819 	u16 aid;
1820 	u16 capability;
1821 	const u8 *supp_rates;
1822 	size_t supp_rates_len;
1823 	u16 listen_interval;
1824 	const struct ieee80211_ht_capabilities *ht_capabilities;
1825 	const struct ieee80211_vht_capabilities *vht_capabilities;
1826 	int vht_opmode_enabled;
1827 	u8 vht_opmode;
1828 	const struct ieee80211_he_capabilities *he_capab;
1829 	size_t he_capab_len;
1830 	u32 flags; /* bitmask of WPA_STA_* flags */
1831 	u32 flags_mask; /* unset bits in flags */
1832 #ifdef CONFIG_MESH
1833 	enum mesh_plink_state plink_state;
1834 	u16 peer_aid;
1835 #endif /* CONFIG_MESH */
1836 	int set; /* Set STA parameters instead of add */
1837 	u8 qosinfo;
1838 	const u8 *ext_capab;
1839 	size_t ext_capab_len;
1840 	const u8 *supp_channels;
1841 	size_t supp_channels_len;
1842 	const u8 *supp_oper_classes;
1843 	size_t supp_oper_classes_len;
1844 	int support_p2p_ps;
1845 };
1846 
1847 struct mac_address {
1848 	u8 addr[ETH_ALEN];
1849 };
1850 
1851 struct hostapd_acl_params {
1852 	u8 acl_policy;
1853 	unsigned int num_mac_acl;
1854 	struct mac_address mac_acl[0];
1855 };
1856 
1857 enum wpa_driver_if_type {
1858 	/**
1859 	 * WPA_IF_STATION - Station mode interface
1860 	 */
1861 	WPA_IF_STATION,
1862 
1863 	/**
1864 	 * WPA_IF_AP_VLAN - AP mode VLAN interface
1865 	 *
1866 	 * This interface shares its address and Beacon frame with the main
1867 	 * BSS.
1868 	 */
1869 	WPA_IF_AP_VLAN,
1870 
1871 	/**
1872 	 * WPA_IF_AP_BSS - AP mode BSS interface
1873 	 *
1874 	 * This interface has its own address and Beacon frame.
1875 	 */
1876 	WPA_IF_AP_BSS,
1877 
1878 	/**
1879 	 * WPA_IF_P2P_GO - P2P Group Owner
1880 	 */
1881 	WPA_IF_P2P_GO,
1882 
1883 	/**
1884 	 * WPA_IF_P2P_CLIENT - P2P Client
1885 	 */
1886 	WPA_IF_P2P_CLIENT,
1887 
1888 	/**
1889 	 * WPA_IF_P2P_GROUP - P2P Group interface (will become either
1890 	 * WPA_IF_P2P_GO or WPA_IF_P2P_CLIENT, but the role is not yet known)
1891 	 */
1892 	WPA_IF_P2P_GROUP,
1893 
1894 	/**
1895 	 * WPA_IF_P2P_DEVICE - P2P Device interface is used to indentify the
1896 	 * abstracted P2P Device function in the driver
1897 	 */
1898 	WPA_IF_P2P_DEVICE,
1899 
1900 	/*
1901 	 * WPA_IF_MESH - Mesh interface
1902 	 */
1903 	WPA_IF_MESH,
1904 
1905 	/*
1906 	 * WPA_IF_TDLS - TDLS offchannel interface (used for pref freq only)
1907 	 */
1908 	WPA_IF_TDLS,
1909 
1910 	/*
1911 	 * WPA_IF_IBSS - IBSS interface (used for pref freq only)
1912 	 */
1913 	WPA_IF_IBSS,
1914 };
1915 
1916 struct wpa_init_params {
1917 	void *global_priv;
1918 	const u8 *bssid;
1919 	const char *ifname;
1920 	const char *driver_params;
1921 	int use_pae_group_addr;
1922 	char **bridge;
1923 	size_t num_bridge;
1924 
1925 	u8 *own_addr; /* buffer for writing own MAC address */
1926 };
1927 
1928 
1929 struct wpa_bss_params {
1930 	/** Interface name (for multi-SSID/VLAN support) */
1931 	const char *ifname;
1932 	/** Whether IEEE 802.1X or WPA/WPA2 is enabled */
1933 	int enabled;
1934 
1935 	int wpa;
1936 	int ieee802_1x;
1937 	int wpa_group;
1938 	int wpa_pairwise;
1939 	int wpa_key_mgmt;
1940 	int rsn_preauth;
1941 	enum mfp_options ieee80211w;
1942 };
1943 
1944 #define WPA_STA_AUTHORIZED BIT(0)
1945 #define WPA_STA_WMM BIT(1)
1946 #define WPA_STA_SHORT_PREAMBLE BIT(2)
1947 #define WPA_STA_MFP BIT(3)
1948 #define WPA_STA_TDLS_PEER BIT(4)
1949 #define WPA_STA_AUTHENTICATED BIT(5)
1950 #define WPA_STA_ASSOCIATED BIT(6)
1951 
1952 enum tdls_oper {
1953 	TDLS_DISCOVERY_REQ,
1954 	TDLS_SETUP,
1955 	TDLS_TEARDOWN,
1956 	TDLS_ENABLE_LINK,
1957 	TDLS_DISABLE_LINK,
1958 	TDLS_ENABLE,
1959 	TDLS_DISABLE
1960 };
1961 
1962 enum wnm_oper {
1963 	WNM_SLEEP_ENTER_CONFIRM,
1964 	WNM_SLEEP_ENTER_FAIL,
1965 	WNM_SLEEP_EXIT_CONFIRM,
1966 	WNM_SLEEP_EXIT_FAIL,
1967 	WNM_SLEEP_TFS_REQ_IE_ADD,   /* STA requests driver to add TFS req IE */
1968 	WNM_SLEEP_TFS_REQ_IE_NONE,  /* STA requests empty TFS req IE */
1969 	WNM_SLEEP_TFS_REQ_IE_SET,   /* AP requests driver to set TFS req IE for
1970 				     * a STA */
1971 	WNM_SLEEP_TFS_RESP_IE_ADD,  /* AP requests driver to add TFS resp IE
1972 				     * for a STA */
1973 	WNM_SLEEP_TFS_RESP_IE_NONE, /* AP requests empty TFS resp IE */
1974 	WNM_SLEEP_TFS_RESP_IE_SET,  /* AP requests driver to set TFS resp IE
1975 				     * for a STA */
1976 	WNM_SLEEP_TFS_IE_DEL        /* AP delete the TFS IE */
1977 };
1978 
1979 /* enum smps_mode - SMPS mode definitions */
1980 enum smps_mode {
1981 	SMPS_AUTOMATIC,
1982 	SMPS_OFF,
1983 	SMPS_DYNAMIC,
1984 	SMPS_STATIC,
1985 
1986 	/* Keep last */
1987 	SMPS_INVALID,
1988 };
1989 
1990 #define WPA_INVALID_NOISE 9999
1991 
1992 /**
1993  * struct wpa_signal_info - Information about channel signal quality
1994  * @frequency: control frequency
1995  * @above_threshold: true if the above threshold was crossed
1996  *	(relevant for a CQM event)
1997  * @current_signal: in dBm
1998  * @avg_signal: in dBm
1999  * @avg_beacon_signal: in dBm
2000  * @current_noise: %WPA_INVALID_NOISE if not supported
2001  * @current_txrate: current TX rate
2002  * @chanwidth: channel width
2003  * @center_frq1: center frequency for the first segment
2004  * @center_frq2: center frequency for the second segment (if relevant)
2005  */
2006 struct wpa_signal_info {
2007 	u32 frequency;
2008 	int above_threshold;
2009 	int current_signal;
2010 	int avg_signal;
2011 	int avg_beacon_signal;
2012 	int current_noise;
2013 	int current_txrate;
2014 	enum chan_width chanwidth;
2015 	int center_frq1;
2016 	int center_frq2;
2017 };
2018 
2019 /**
2020  * struct wpa_channel_info - Information about the current channel
2021  * @frequency: Center frequency of the primary 20 MHz channel
2022  * @chanwidth: Width of the current operating channel
2023  * @sec_channel: Location of the secondary 20 MHz channel (either +1 or -1).
2024  *	This field is only filled in when using a 40 MHz channel.
2025  * @center_frq1: Center frequency of frequency segment 0
2026  * @center_frq2: Center frequency of frequency segment 1 (for 80+80 channels)
2027  * @seg1_idx: Frequency segment 1 index when using a 80+80 channel. This is
2028  *	derived from center_frq2 for convenience.
2029  */
2030 struct wpa_channel_info {
2031 	u32 frequency;
2032 	enum chan_width chanwidth;
2033 	int sec_channel;
2034 	int center_frq1;
2035 	int center_frq2;
2036 	u8 seg1_idx;
2037 };
2038 
2039 /**
2040  * struct beacon_data - Beacon data
2041  * @head: Head portion of Beacon frame (before TIM IE)
2042  * @tail: Tail portion of Beacon frame (after TIM IE)
2043  * @beacon_ies: Extra information element(s) to add into Beacon frames or %NULL
2044  * @proberesp_ies: Extra information element(s) to add into Probe Response
2045  *	frames or %NULL
2046  * @assocresp_ies: Extra information element(s) to add into (Re)Association
2047  *	Response frames or %NULL
2048  * @probe_resp: Probe Response frame template
2049  * @head_len: Length of @head
2050  * @tail_len: Length of @tail
2051  * @beacon_ies_len: Length of beacon_ies in octets
2052  * @proberesp_ies_len: Length of proberesp_ies in octets
2053  * @proberesp_ies_len: Length of proberesp_ies in octets
2054  * @probe_resp_len: Length of probe response template (@probe_resp)
2055  */
2056 struct beacon_data {
2057 	u8 *head, *tail;
2058 	u8 *beacon_ies;
2059 	u8 *proberesp_ies;
2060 	u8 *assocresp_ies;
2061 	u8 *probe_resp;
2062 
2063 	size_t head_len, tail_len;
2064 	size_t beacon_ies_len;
2065 	size_t proberesp_ies_len;
2066 	size_t assocresp_ies_len;
2067 	size_t probe_resp_len;
2068 };
2069 
2070 /**
2071  * struct csa_settings - Settings for channel switch command
2072  * @cs_count: Count in Beacon frames (TBTT) to perform the switch
2073  * @block_tx: 1 - block transmission for CSA period
2074  * @freq_params: Next channel frequency parameter
2075  * @beacon_csa: Beacon/probe resp/asooc resp info for CSA period
2076  * @beacon_after: Next beacon/probe resp/asooc resp info
2077  * @counter_offset_beacon: Offset to the count field in beacon's tail
2078  * @counter_offset_presp: Offset to the count field in probe resp.
2079  */
2080 struct csa_settings {
2081 	u8 cs_count;
2082 	u8 block_tx;
2083 
2084 	struct hostapd_freq_params freq_params;
2085 	struct beacon_data beacon_csa;
2086 	struct beacon_data beacon_after;
2087 
2088 	u16 counter_offset_beacon[2];
2089 	u16 counter_offset_presp[2];
2090 };
2091 
2092 /* TDLS peer capabilities for send_tdls_mgmt() */
2093 enum tdls_peer_capability {
2094 	TDLS_PEER_HT = BIT(0),
2095 	TDLS_PEER_VHT = BIT(1),
2096 	TDLS_PEER_WMM = BIT(2),
2097 };
2098 
2099 /* valid info in the wmm_params struct */
2100 enum wmm_params_valid_info {
2101 	WMM_PARAMS_UAPSD_QUEUES_INFO = BIT(0),
2102 };
2103 
2104 /**
2105  * struct wmm_params - WMM parameterss configured for this association
2106  * @info_bitmap: Bitmap of valid wmm_params info; indicates what fields
2107  *	of the struct contain valid information.
2108  * @uapsd_queues: Bitmap of ACs configured for uapsd (valid only if
2109  *	%WMM_PARAMS_UAPSD_QUEUES_INFO is set)
2110  */
2111 struct wmm_params {
2112 	u8 info_bitmap;
2113 	u8 uapsd_queues;
2114 };
2115 
2116 #ifdef CONFIG_MACSEC
2117 struct macsec_init_params {
2118 	Boolean always_include_sci;
2119 	Boolean use_es;
2120 	Boolean use_scb;
2121 };
2122 #endif /* CONFIG_MACSEC */
2123 
2124 enum drv_br_port_attr {
2125 	DRV_BR_PORT_ATTR_PROXYARP,
2126 	DRV_BR_PORT_ATTR_HAIRPIN_MODE,
2127 };
2128 
2129 enum drv_br_net_param {
2130 	DRV_BR_NET_PARAM_GARP_ACCEPT,
2131 	DRV_BR_MULTICAST_SNOOPING,
2132 };
2133 
2134 struct drv_acs_params {
2135 	/* Selected mode (HOSTAPD_MODE_*) */
2136 	enum hostapd_hw_mode hw_mode;
2137 
2138 	/* Indicates whether HT is enabled */
2139 	int ht_enabled;
2140 
2141 	/* Indicates whether HT40 is enabled */
2142 	int ht40_enabled;
2143 
2144 	/* Indicates whether VHT is enabled */
2145 	int vht_enabled;
2146 
2147 	/* Configured ACS channel width */
2148 	u16 ch_width;
2149 
2150 	/* ACS channel list info */
2151 	unsigned int ch_list_len;
2152 	const u8 *ch_list;
2153 	const int *freq_list;
2154 };
2155 
2156 struct wpa_bss_trans_info {
2157 	u8 mbo_transition_reason;
2158 	u8 n_candidates;
2159 	u8 *bssid;
2160 };
2161 
2162 struct wpa_bss_candidate_info {
2163 	u8 num;
2164 	struct candidate_list {
2165 		u8 bssid[ETH_ALEN];
2166 		u8 is_accept;
2167 		u32 reject_reason;
2168 	} *candidates;
2169 };
2170 
2171 struct wpa_pmkid_params {
2172 	const u8 *bssid;
2173 	const u8 *ssid;
2174 	size_t ssid_len;
2175 	const u8 *fils_cache_id;
2176 	const u8 *pmkid;
2177 	const u8 *pmk;
2178 	size_t pmk_len;
2179 };
2180 
2181 /* Mask used to specify which connection parameters have to be updated */
2182 enum wpa_drv_update_connect_params_mask {
2183 	WPA_DRV_UPDATE_ASSOC_IES	= BIT(0),
2184 	WPA_DRV_UPDATE_FILS_ERP_INFO	= BIT(1),
2185 	WPA_DRV_UPDATE_AUTH_TYPE	= BIT(2),
2186 };
2187 
2188 /**
2189  * struct external_auth - External authentication trigger parameters
2190  *
2191  * These are used across the external authentication request and event
2192  * interfaces.
2193  * @action: Action type / trigger for external authentication. Only significant
2194  *	for the event interface.
2195  * @bssid: BSSID of the peer with which the authentication has to happen. Used
2196  *	by both the request and event interface.
2197  * @ssid: SSID of the AP. Used by both the request and event interface.
2198  * @ssid_len: SSID length in octets.
2199  * @key_mgmt_suite: AKM suite of the respective authentication. Optional for
2200  *	the request interface.
2201  * @status: Status code, %WLAN_STATUS_SUCCESS for successful authentication,
2202  *	use %WLAN_STATUS_UNSPECIFIED_FAILURE if wpa_supplicant cannot give
2203  *	the real status code for failures. Used only for the request interface
2204  *	from user space to the driver.
2205  * @pmkid: Generated PMKID as part of external auth exchange (e.g., SAE).
2206  */
2207 struct external_auth {
2208 	enum {
2209 		EXT_AUTH_START,
2210 		EXT_AUTH_ABORT,
2211 	} action;
2212 	const u8 *bssid;
2213 	const u8 *ssid;
2214 	size_t ssid_len;
2215 	unsigned int key_mgmt_suite;
2216 	u16 status;
2217 	const u8 *pmkid;
2218 };
2219 
2220 /**
2221  * struct wpa_driver_ops - Driver interface API definition
2222  *
2223  * This structure defines the API that each driver interface needs to implement
2224  * for core wpa_supplicant code. All driver specific functionality is captured
2225  * in this wrapper.
2226  */
2227 struct wpa_driver_ops {
2228 	/** Name of the driver interface */
2229 	const char *name;
2230 	/** One line description of the driver interface */
2231 	const char *desc;
2232 
2233 	/**
2234 	 * get_bssid - Get the current BSSID
2235 	 * @priv: private driver interface data
2236 	 * @bssid: buffer for BSSID (ETH_ALEN = 6 bytes)
2237 	 *
2238 	 * Returns: 0 on success, -1 on failure
2239 	 *
2240 	 * Query kernel driver for the current BSSID and copy it to bssid.
2241 	 * Setting bssid to 00:00:00:00:00:00 is recommended if the STA is not
2242 	 * associated.
2243 	 */
2244 	int (*get_bssid)(void *priv, u8 *bssid);
2245 
2246 	/**
2247 	 * get_ssid - Get the current SSID
2248 	 * @priv: private driver interface data
2249 	 * @ssid: buffer for SSID (at least 32 bytes)
2250 	 *
2251 	 * Returns: Length of the SSID on success, -1 on failure
2252 	 *
2253 	 * Query kernel driver for the current SSID and copy it to ssid.
2254 	 * Returning zero is recommended if the STA is not associated.
2255 	 *
2256 	 * Note: SSID is an array of octets, i.e., it is not nul terminated and
2257 	 * can, at least in theory, contain control characters (including nul)
2258 	 * and as such, should be processed as binary data, not a printable
2259 	 * string.
2260 	 */
2261 	int (*get_ssid)(void *priv, u8 *ssid);
2262 
2263 	/**
2264 	 * set_key - Configure encryption key
2265 	 * @ifname: Interface name (for multi-SSID/VLAN support)
2266 	 * @priv: private driver interface data
2267 	 * @alg: encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP,
2268 	 *	%WPA_ALG_TKIP, %WPA_ALG_CCMP, %WPA_ALG_IGTK, %WPA_ALG_PMK,
2269 	 *	%WPA_ALG_GCMP, %WPA_ALG_GCMP_256, %WPA_ALG_CCMP_256,
2270 	 *	%WPA_ALG_BIP_GMAC_128, %WPA_ALG_BIP_GMAC_256,
2271 	 *	%WPA_ALG_BIP_CMAC_256);
2272 	 *	%WPA_ALG_NONE clears the key.
2273 	 * @addr: Address of the peer STA (BSSID of the current AP when setting
2274 	 *	pairwise key in station mode), ff:ff:ff:ff:ff:ff for
2275 	 *	broadcast keys, %NULL for default keys that are used both for
2276 	 *	broadcast and unicast; when clearing keys, %NULL is used to
2277 	 *	indicate that both the broadcast-only and default key of the
2278 	 *	specified key index is to be cleared
2279 	 * @key_idx: key index (0..3), usually 0 for unicast keys; 0..4095 for
2280 	 *	IGTK
2281 	 * @set_tx: configure this key as the default Tx key (only used when
2282 	 *	driver does not support separate unicast/individual key
2283 	 * @seq: sequence number/packet number, seq_len octets, the next
2284 	 *	packet number to be used for in replay protection; configured
2285 	 *	for Rx keys (in most cases, this is only used with broadcast
2286 	 *	keys and set to zero for unicast keys); %NULL if not set
2287 	 * @seq_len: length of the seq, depends on the algorithm:
2288 	 *	TKIP: 6 octets, CCMP/GCMP: 6 octets, IGTK: 6 octets
2289 	 * @key: key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key,
2290 	 *	8-byte Rx Mic Key
2291 	 * @key_len: length of the key buffer in octets (WEP: 5 or 13,
2292 	 *	TKIP: 32, CCMP/GCMP: 16, IGTK: 16)
2293 	 *
2294 	 * Returns: 0 on success, -1 on failure
2295 	 *
2296 	 * Configure the given key for the kernel driver. If the driver
2297 	 * supports separate individual keys (4 default keys + 1 individual),
2298 	 * addr can be used to determine whether the key is default or
2299 	 * individual. If only 4 keys are supported, the default key with key
2300 	 * index 0 is used as the individual key. STA must be configured to use
2301 	 * it as the default Tx key (set_tx is set) and accept Rx for all the
2302 	 * key indexes. In most cases, WPA uses only key indexes 1 and 2 for
2303 	 * broadcast keys, so key index 0 is available for this kind of
2304 	 * configuration.
2305 	 *
2306 	 * Please note that TKIP keys include separate TX and RX MIC keys and
2307 	 * some drivers may expect them in different order than wpa_supplicant
2308 	 * is using. If the TX/RX keys are swapped, all TKIP encrypted packets
2309 	 * will trigger Michael MIC errors. This can be fixed by changing the
2310 	 * order of MIC keys by swapping te bytes 16..23 and 24..31 of the key
2311 	 * in driver_*.c set_key() implementation, see driver_ndis.c for an
2312 	 * example on how this can be done.
2313 	 */
2314 	int (*set_key)(const char *ifname, void *priv, enum wpa_alg alg,
2315 		       const u8 *addr, int key_idx, int set_tx,
2316 		       const u8 *seq, size_t seq_len,
2317 		       const u8 *key, size_t key_len);
2318 
2319 	/**
2320 	 * init - Initialize driver interface
2321 	 * @ctx: context to be used when calling wpa_supplicant functions,
2322 	 * e.g., wpa_supplicant_event()
2323 	 * @ifname: interface name, e.g., wlan0
2324 	 *
2325 	 * Returns: Pointer to private data, %NULL on failure
2326 	 *
2327 	 * Initialize driver interface, including event processing for kernel
2328 	 * driver events (e.g., associated, scan results, Michael MIC failure).
2329 	 * This function can allocate a private configuration data area for
2330 	 * @ctx, file descriptor, interface name, etc. information that may be
2331 	 * needed in future driver operations. If this is not used, non-NULL
2332 	 * value will need to be returned because %NULL is used to indicate
2333 	 * failure. The returned value will be used as 'void *priv' data for
2334 	 * all other driver_ops functions.
2335 	 *
2336 	 * The main event loop (eloop.c) of wpa_supplicant can be used to
2337 	 * register callback for read sockets (eloop_register_read_sock()).
2338 	 *
2339 	 * See below for more information about events and
2340 	 * wpa_supplicant_event() function.
2341 	 */
2342 	void * (*init)(void *ctx, const char *ifname);
2343 
2344 	/**
2345 	 * deinit - Deinitialize driver interface
2346 	 * @priv: private driver interface data from init()
2347 	 *
2348 	 * Shut down driver interface and processing of driver events. Free
2349 	 * private data buffer if one was allocated in init() handler.
2350 	 */
2351 	void (*deinit)(void *priv);
2352 
2353 	/**
2354 	 * set_param - Set driver configuration parameters
2355 	 * @priv: private driver interface data from init()
2356 	 * @param: driver specific configuration parameters
2357 	 *
2358 	 * Returns: 0 on success, -1 on failure
2359 	 *
2360 	 * Optional handler for notifying driver interface about configuration
2361 	 * parameters (driver_param).
2362 	 */
2363 	int (*set_param)(void *priv, const char *param);
2364 
2365 	/**
2366 	 * set_countermeasures - Enable/disable TKIP countermeasures
2367 	 * @priv: private driver interface data
2368 	 * @enabled: 1 = countermeasures enabled, 0 = disabled
2369 	 *
2370 	 * Returns: 0 on success, -1 on failure
2371 	 *
2372 	 * Configure TKIP countermeasures. When these are enabled, the driver
2373 	 * should drop all received and queued frames that are using TKIP.
2374 	 */
2375 	int (*set_countermeasures)(void *priv, int enabled);
2376 
2377 	/**
2378 	 * deauthenticate - Request driver to deauthenticate
2379 	 * @priv: private driver interface data
2380 	 * @addr: peer address (BSSID of the AP)
2381 	 * @reason_code: 16-bit reason code to be sent in the deauthentication
2382 	 *	frame
2383 	 *
2384 	 * Returns: 0 on success, -1 on failure
2385 	 */
2386 	int (*deauthenticate)(void *priv, const u8 *addr, u16 reason_code);
2387 
2388 	/**
2389 	 * associate - Request driver to associate
2390 	 * @priv: private driver interface data
2391 	 * @params: association parameters
2392 	 *
2393 	 * Returns: 0 on success, -1 on failure
2394 	 */
2395 	int (*associate)(void *priv,
2396 			 struct wpa_driver_associate_params *params);
2397 
2398 	/**
2399 	 * add_pmkid - Add PMKSA cache entry to the driver
2400 	 * @priv: private driver interface data
2401 	 * @params: PMKSA parameters
2402 	 *
2403 	 * Returns: 0 on success, -1 on failure
2404 	 *
2405 	 * This function is called when a new PMK is received, as a result of
2406 	 * either normal authentication or RSN pre-authentication. The PMKSA
2407 	 * parameters are either a set of bssid, pmkid, and pmk; or a set of
2408 	 * ssid, fils_cache_id, pmkid, and pmk.
2409 	 *
2410 	 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
2411 	 * associate(), add_pmkid() can be used to add new PMKSA cache entries
2412 	 * in the driver. If the driver uses wpa_ie from wpa_supplicant, this
2413 	 * driver_ops function does not need to be implemented. Likewise, if
2414 	 * the driver does not support WPA, this function is not needed.
2415 	 */
2416 	int (*add_pmkid)(void *priv, struct wpa_pmkid_params *params);
2417 
2418 	/**
2419 	 * remove_pmkid - Remove PMKSA cache entry to the driver
2420 	 * @priv: private driver interface data
2421 	 * @params: PMKSA parameters
2422 	 *
2423 	 * Returns: 0 on success, -1 on failure
2424 	 *
2425 	 * This function is called when the supplicant drops a PMKSA cache
2426 	 * entry for any reason. The PMKSA parameters are either a set of
2427 	 * bssid and pmkid; or a set of ssid, fils_cache_id, and pmkid.
2428 	 *
2429 	 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
2430 	 * associate(), remove_pmkid() can be used to synchronize PMKSA caches
2431 	 * between the driver and wpa_supplicant. If the driver uses wpa_ie
2432 	 * from wpa_supplicant, this driver_ops function does not need to be
2433 	 * implemented. Likewise, if the driver does not support WPA, this
2434 	 * function is not needed.
2435 	 */
2436 	int (*remove_pmkid)(void *priv, struct wpa_pmkid_params *params);
2437 
2438 	/**
2439 	 * flush_pmkid - Flush PMKSA cache
2440 	 * @priv: private driver interface data
2441 	 *
2442 	 * Returns: 0 on success, -1 on failure
2443 	 *
2444 	 * This function is called when the supplicant drops all PMKSA cache
2445 	 * entries for any reason.
2446 	 *
2447 	 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
2448 	 * associate(), remove_pmkid() can be used to synchronize PMKSA caches
2449 	 * between the driver and wpa_supplicant. If the driver uses wpa_ie
2450 	 * from wpa_supplicant, this driver_ops function does not need to be
2451 	 * implemented. Likewise, if the driver does not support WPA, this
2452 	 * function is not needed.
2453 	 */
2454 	int (*flush_pmkid)(void *priv);
2455 
2456 	/**
2457 	 * get_capa - Get driver capabilities
2458 	 * @priv: private driver interface data
2459 	 *
2460 	 * Returns: 0 on success, -1 on failure
2461 	 *
2462 	 * Get driver/firmware/hardware capabilities.
2463 	 */
2464 	int (*get_capa)(void *priv, struct wpa_driver_capa *capa);
2465 
2466 	/**
2467 	 * poll - Poll driver for association information
2468 	 * @priv: private driver interface data
2469 	 *
2470 	 * This is an option callback that can be used when the driver does not
2471 	 * provide event mechanism for association events. This is called when
2472 	 * receiving WPA EAPOL-Key messages that require association
2473 	 * information. The driver interface is supposed to generate associnfo
2474 	 * event before returning from this callback function. In addition, the
2475 	 * driver interface should generate an association event after having
2476 	 * sent out associnfo.
2477 	 */
2478 	void (*poll)(void *priv);
2479 
2480 	/**
2481 	 * get_ifindex - Get interface index
2482 	 * @priv: private driver interface data
2483 	 *
2484 	 * Returns: Interface index
2485 	 */
2486 	unsigned int (*get_ifindex)(void *priv);
2487 
2488 	/**
2489 	 * get_ifname - Get interface name
2490 	 * @priv: private driver interface data
2491 	 *
2492 	 * Returns: Pointer to the interface name. This can differ from the
2493 	 * interface name used in init() call. Init() is called first.
2494 	 *
2495 	 * This optional function can be used to allow the driver interface to
2496 	 * replace the interface name with something else, e.g., based on an
2497 	 * interface mapping from a more descriptive name.
2498 	 */
2499 	const char * (*get_ifname)(void *priv);
2500 
2501 	/**
2502 	 * get_mac_addr - Get own MAC address
2503 	 * @priv: private driver interface data
2504 	 *
2505 	 * Returns: Pointer to own MAC address or %NULL on failure
2506 	 *
2507 	 * This optional function can be used to get the own MAC address of the
2508 	 * device from the driver interface code. This is only needed if the
2509 	 * l2_packet implementation for the OS does not provide easy access to
2510 	 * a MAC address. */
2511 	const u8 * (*get_mac_addr)(void *priv);
2512 
2513 	/**
2514 	 * set_operstate - Sets device operating state to DORMANT or UP
2515 	 * @priv: private driver interface data
2516 	 * @state: 0 = dormant, 1 = up
2517 	 * Returns: 0 on success, -1 on failure
2518 	 *
2519 	 * This is an optional function that can be used on operating systems
2520 	 * that support a concept of controlling network device state from user
2521 	 * space applications. This function, if set, gets called with
2522 	 * state = 1 when authentication has been completed and with state = 0
2523 	 * when connection is lost.
2524 	 */
2525 	int (*set_operstate)(void *priv, int state);
2526 
2527 	/**
2528 	 * mlme_setprotection - MLME-SETPROTECTION.request primitive
2529 	 * @priv: Private driver interface data
2530 	 * @addr: Address of the station for which to set protection (may be
2531 	 * %NULL for group keys)
2532 	 * @protect_type: MLME_SETPROTECTION_PROTECT_TYPE_*
2533 	 * @key_type: MLME_SETPROTECTION_KEY_TYPE_*
2534 	 * Returns: 0 on success, -1 on failure
2535 	 *
2536 	 * This is an optional function that can be used to set the driver to
2537 	 * require protection for Tx and/or Rx frames. This uses the layer
2538 	 * interface defined in IEEE 802.11i-2004 clause 10.3.22.1
2539 	 * (MLME-SETPROTECTION.request). Many drivers do not use explicit
2540 	 * set protection operation; instead, they set protection implicitly
2541 	 * based on configured keys.
2542 	 */
2543 	int (*mlme_setprotection)(void *priv, const u8 *addr, int protect_type,
2544 				  int key_type);
2545 
2546 	/**
2547 	 * get_hw_feature_data - Get hardware support data (channels and rates)
2548 	 * @priv: Private driver interface data
2549 	 * @num_modes: Variable for returning the number of returned modes
2550 	 * flags: Variable for returning hardware feature flags
2551 	 * @dfs: Variable for returning DFS region (HOSTAPD_DFS_REGION_*)
2552 	 * Returns: Pointer to allocated hardware data on success or %NULL on
2553 	 * failure. Caller is responsible for freeing this.
2554 	 */
2555 	struct hostapd_hw_modes * (*get_hw_feature_data)(void *priv,
2556 							 u16 *num_modes,
2557 							 u16 *flags, u8 *dfs);
2558 
2559 	/**
2560 	 * send_mlme - Send management frame from MLME
2561 	 * @priv: Private driver interface data
2562 	 * @data: IEEE 802.11 management frame with IEEE 802.11 header
2563 	 * @data_len: Size of the management frame
2564 	 * @noack: Do not wait for this frame to be acked (disable retries)
2565 	 * @freq: Frequency (in MHz) to send the frame on, or 0 to let the
2566 	 * driver decide
2567 	 * @csa_offs: Array of CSA offsets or %NULL
2568 	 * @csa_offs_len: Number of elements in csa_offs
2569 	 * Returns: 0 on success, -1 on failure
2570 	 */
2571 	int (*send_mlme)(void *priv, const u8 *data, size_t data_len,
2572 			 int noack, unsigned int freq, const u16 *csa_offs,
2573 			 size_t csa_offs_len);
2574 
2575 	/**
2576 	 * update_ft_ies - Update FT (IEEE 802.11r) IEs
2577 	 * @priv: Private driver interface data
2578 	 * @md: Mobility domain (2 octets) (also included inside ies)
2579 	 * @ies: FT IEs (MDIE, FTIE, ...) or %NULL to remove IEs
2580 	 * @ies_len: Length of FT IEs in bytes
2581 	 * Returns: 0 on success, -1 on failure
2582 	 *
2583 	 * The supplicant uses this callback to let the driver know that keying
2584 	 * material for FT is available and that the driver can use the
2585 	 * provided IEs in the next message in FT authentication sequence.
2586 	 *
2587 	 * This function is only needed for driver that support IEEE 802.11r
2588 	 * (Fast BSS Transition).
2589 	 */
2590 	int (*update_ft_ies)(void *priv, const u8 *md, const u8 *ies,
2591 			     size_t ies_len);
2592 
2593 	/**
2594 	 * get_scan_results2 - Fetch the latest scan results
2595 	 * @priv: private driver interface data
2596 	 *
2597 	 * Returns: Allocated buffer of scan results (caller is responsible for
2598 	 * freeing the data structure) on success, NULL on failure
2599 	 */
2600 	 struct wpa_scan_results * (*get_scan_results2)(void *priv);
2601 
2602 	/**
2603 	 * set_country - Set country
2604 	 * @priv: Private driver interface data
2605 	 * @alpha2: country to which to switch to
2606 	 * Returns: 0 on success, -1 on failure
2607 	 *
2608 	 * This function is for drivers which support some form
2609 	 * of setting a regulatory domain.
2610 	 */
2611 	int (*set_country)(void *priv, const char *alpha2);
2612 
2613 	/**
2614 	 * get_country - Get country
2615 	 * @priv: Private driver interface data
2616 	 * @alpha2: Buffer for returning country code (at least 3 octets)
2617 	 * Returns: 0 on success, -1 on failure
2618 	 */
2619 	int (*get_country)(void *priv, char *alpha2);
2620 
2621 	/**
2622 	 * global_init - Global driver initialization
2623 	 * @ctx: wpa_global pointer
2624 	 * Returns: Pointer to private data (global), %NULL on failure
2625 	 *
2626 	 * This optional function is called to initialize the driver wrapper
2627 	 * for global data, i.e., data that applies to all interfaces. If this
2628 	 * function is implemented, global_deinit() will also need to be
2629 	 * implemented to free the private data. The driver will also likely
2630 	 * use init2() function instead of init() to get the pointer to global
2631 	 * data available to per-interface initializer.
2632 	 */
2633 	void * (*global_init)(void *ctx);
2634 
2635 	/**
2636 	 * global_deinit - Global driver deinitialization
2637 	 * @priv: private driver global data from global_init()
2638 	 *
2639 	 * Terminate any global driver related functionality and free the
2640 	 * global data structure.
2641 	 */
2642 	void (*global_deinit)(void *priv);
2643 
2644 	/**
2645 	 * init2 - Initialize driver interface (with global data)
2646 	 * @ctx: context to be used when calling wpa_supplicant functions,
2647 	 * e.g., wpa_supplicant_event()
2648 	 * @ifname: interface name, e.g., wlan0
2649 	 * @global_priv: private driver global data from global_init()
2650 	 * Returns: Pointer to private data, %NULL on failure
2651 	 *
2652 	 * This function can be used instead of init() if the driver wrapper
2653 	 * uses global data.
2654 	 */
2655 	void * (*init2)(void *ctx, const char *ifname, void *global_priv);
2656 
2657 	/**
2658 	 * get_interfaces - Get information about available interfaces
2659 	 * @global_priv: private driver global data from global_init()
2660 	 * Returns: Allocated buffer of interface information (caller is
2661 	 * responsible for freeing the data structure) on success, NULL on
2662 	 * failure
2663 	 */
2664 	struct wpa_interface_info * (*get_interfaces)(void *global_priv);
2665 
2666 	/**
2667 	 * scan2 - Request the driver to initiate scan
2668 	 * @priv: private driver interface data
2669 	 * @params: Scan parameters
2670 	 *
2671 	 * Returns: 0 on success, -1 on failure
2672 	 *
2673 	 * Once the scan results are ready, the driver should report scan
2674 	 * results event for wpa_supplicant which will eventually request the
2675 	 * results with wpa_driver_get_scan_results2().
2676 	 */
2677 	int (*scan2)(void *priv, struct wpa_driver_scan_params *params);
2678 
2679 	/**
2680 	 * authenticate - Request driver to authenticate
2681 	 * @priv: private driver interface data
2682 	 * @params: authentication parameters
2683 	 * Returns: 0 on success, -1 on failure
2684 	 *
2685 	 * This is an optional function that can be used with drivers that
2686 	 * support separate authentication and association steps, i.e., when
2687 	 * wpa_supplicant can act as the SME. If not implemented, associate()
2688 	 * function is expected to take care of IEEE 802.11 authentication,
2689 	 * too.
2690 	 */
2691 	int (*authenticate)(void *priv,
2692 			    struct wpa_driver_auth_params *params);
2693 
2694 	/**
2695 	 * set_ap - Set Beacon and Probe Response information for AP mode
2696 	 * @priv: Private driver interface data
2697 	 * @params: Parameters to use in AP mode
2698 	 *
2699 	 * This function is used to configure Beacon template and/or extra IEs
2700 	 * to add for Beacon and Probe Response frames for the driver in
2701 	 * AP mode. The driver is responsible for building the full Beacon
2702 	 * frame by concatenating the head part with TIM IE generated by the
2703 	 * driver/firmware and finishing with the tail part. Depending on the
2704 	 * driver architectue, this can be done either by using the full
2705 	 * template or the set of additional IEs (e.g., WPS and P2P IE).
2706 	 * Similarly, Probe Response processing depends on the driver design.
2707 	 * If the driver (or firmware) takes care of replying to Probe Request
2708 	 * frames, the extra IEs provided here needs to be added to the Probe
2709 	 * Response frames.
2710 	 *
2711 	 * Returns: 0 on success, -1 on failure
2712 	 */
2713 	int (*set_ap)(void *priv, struct wpa_driver_ap_params *params);
2714 
2715 	/**
2716 	 * set_acl - Set ACL in AP mode
2717 	 * @priv: Private driver interface data
2718 	 * @params: Parameters to configure ACL
2719 	 * Returns: 0 on success, -1 on failure
2720 	 *
2721 	 * This is used only for the drivers which support MAC address ACL.
2722 	 */
2723 	int (*set_acl)(void *priv, struct hostapd_acl_params *params);
2724 
2725 	/**
2726 	 * hapd_init - Initialize driver interface (hostapd only)
2727 	 * @hapd: Pointer to hostapd context
2728 	 * @params: Configuration for the driver wrapper
2729 	 * Returns: Pointer to private data, %NULL on failure
2730 	 *
2731 	 * This function is used instead of init() or init2() when the driver
2732 	 * wrapper is used with hostapd.
2733 	 */
2734 	void * (*hapd_init)(struct hostapd_data *hapd,
2735 			    struct wpa_init_params *params);
2736 
2737 	/**
2738 	 * hapd_deinit - Deinitialize driver interface (hostapd only)
2739 	 * @priv: Private driver interface data from hapd_init()
2740 	 */
2741 	void (*hapd_deinit)(void *priv);
2742 
2743 	/**
2744 	 * set_ieee8021x - Enable/disable IEEE 802.1X support (AP only)
2745 	 * @priv: Private driver interface data
2746 	 * @params: BSS parameters
2747 	 * Returns: 0 on success, -1 on failure
2748 	 *
2749 	 * This is an optional function to configure the kernel driver to
2750 	 * enable/disable IEEE 802.1X support and set WPA/WPA2 parameters. This
2751 	 * can be left undefined (set to %NULL) if IEEE 802.1X support is
2752 	 * always enabled and the driver uses set_ap() to set WPA/RSN IE
2753 	 * for Beacon frames.
2754 	 *
2755 	 * DEPRECATED - use set_ap() instead
2756 	 */
2757 	int (*set_ieee8021x)(void *priv, struct wpa_bss_params *params);
2758 
2759 	/**
2760 	 * set_privacy - Enable/disable privacy (AP only)
2761 	 * @priv: Private driver interface data
2762 	 * @enabled: 1 = privacy enabled, 0 = disabled
2763 	 * Returns: 0 on success, -1 on failure
2764 	 *
2765 	 * This is an optional function to configure privacy field in the
2766 	 * kernel driver for Beacon frames. This can be left undefined (set to
2767 	 * %NULL) if the driver uses the Beacon template from set_ap().
2768 	 *
2769 	 * DEPRECATED - use set_ap() instead
2770 	 */
2771 	int (*set_privacy)(void *priv, int enabled);
2772 
2773 	/**
2774 	 * get_seqnum - Fetch the current TSC/packet number (AP only)
2775 	 * @ifname: The interface name (main or virtual)
2776 	 * @priv: Private driver interface data
2777 	 * @addr: MAC address of the station or %NULL for group keys
2778 	 * @idx: Key index
2779 	 * @seq: Buffer for returning the latest used TSC/packet number
2780 	 * Returns: 0 on success, -1 on failure
2781 	 *
2782 	 * This function is used to fetch the last used TSC/packet number for
2783 	 * a TKIP, CCMP, GCMP, or BIP/IGTK key. It is mainly used with group
2784 	 * keys, so there is no strict requirement on implementing support for
2785 	 * unicast keys (i.e., addr != %NULL).
2786 	 */
2787 	int (*get_seqnum)(const char *ifname, void *priv, const u8 *addr,
2788 			  int idx, u8 *seq);
2789 
2790 	/**
2791 	 * flush - Flush all association stations (AP only)
2792 	 * @priv: Private driver interface data
2793 	 * Returns: 0 on success, -1 on failure
2794 	 *
2795 	 * This function requests the driver to disassociate all associated
2796 	 * stations. This function does not need to be implemented if the
2797 	 * driver does not process association frames internally.
2798 	 */
2799 	int (*flush)(void *priv);
2800 
2801 	/**
2802 	 * set_generic_elem - Add IEs into Beacon/Probe Response frames (AP)
2803 	 * @priv: Private driver interface data
2804 	 * @elem: Information elements
2805 	 * @elem_len: Length of the elem buffer in octets
2806 	 * Returns: 0 on success, -1 on failure
2807 	 *
2808 	 * This is an optional function to add information elements in the
2809 	 * kernel driver for Beacon and Probe Response frames. This can be left
2810 	 * undefined (set to %NULL) if the driver uses the Beacon template from
2811 	 * set_ap().
2812 	 *
2813 	 * DEPRECATED - use set_ap() instead
2814 	 */
2815 	int (*set_generic_elem)(void *priv, const u8 *elem, size_t elem_len);
2816 
2817 	/**
2818 	 * read_sta_data - Fetch station data
2819 	 * @priv: Private driver interface data
2820 	 * @data: Buffer for returning station information
2821 	 * @addr: MAC address of the station
2822 	 * Returns: 0 on success, -1 on failure
2823 	 */
2824 	int (*read_sta_data)(void *priv, struct hostap_sta_driver_data *data,
2825 			     const u8 *addr);
2826 
2827 	/**
2828 	 * hapd_send_eapol - Send an EAPOL packet (AP only)
2829 	 * @priv: private driver interface data
2830 	 * @addr: Destination MAC address
2831 	 * @data: EAPOL packet starting with IEEE 802.1X header
2832 	 * @data_len: Length of the EAPOL packet in octets
2833 	 * @encrypt: Whether the frame should be encrypted
2834 	 * @own_addr: Source MAC address
2835 	 * @flags: WPA_STA_* flags for the destination station
2836 	 *
2837 	 * Returns: 0 on success, -1 on failure
2838 	 */
2839 	int (*hapd_send_eapol)(void *priv, const u8 *addr, const u8 *data,
2840 			       size_t data_len, int encrypt,
2841 			       const u8 *own_addr, u32 flags);
2842 
2843 	/**
2844 	 * sta_deauth - Deauthenticate a station (AP only)
2845 	 * @priv: Private driver interface data
2846 	 * @own_addr: Source address and BSSID for the Deauthentication frame
2847 	 * @addr: MAC address of the station to deauthenticate
2848 	 * @reason: Reason code for the Deauthentiation frame
2849 	 * Returns: 0 on success, -1 on failure
2850 	 *
2851 	 * This function requests a specific station to be deauthenticated and
2852 	 * a Deauthentication frame to be sent to it.
2853 	 */
2854 	int (*sta_deauth)(void *priv, const u8 *own_addr, const u8 *addr,
2855 			  u16 reason);
2856 
2857 	/**
2858 	 * sta_disassoc - Disassociate a station (AP only)
2859 	 * @priv: Private driver interface data
2860 	 * @own_addr: Source address and BSSID for the Disassociation frame
2861 	 * @addr: MAC address of the station to disassociate
2862 	 * @reason: Reason code for the Disassociation frame
2863 	 * Returns: 0 on success, -1 on failure
2864 	 *
2865 	 * This function requests a specific station to be disassociated and
2866 	 * a Disassociation frame to be sent to it.
2867 	 */
2868 	int (*sta_disassoc)(void *priv, const u8 *own_addr, const u8 *addr,
2869 			    u16 reason);
2870 
2871 	/**
2872 	 * sta_remove - Remove a station entry (AP only)
2873 	 * @priv: Private driver interface data
2874 	 * @addr: MAC address of the station to be removed
2875 	 * Returns: 0 on success, -1 on failure
2876 	 */
2877 	int (*sta_remove)(void *priv, const u8 *addr);
2878 
2879 	/**
2880 	 * hapd_get_ssid - Get the current SSID (AP only)
2881 	 * @priv: Private driver interface data
2882 	 * @buf: Buffer for returning the SSID
2883 	 * @len: Maximum length of the buffer
2884 	 * Returns: Length of the SSID on success, -1 on failure
2885 	 *
2886 	 * This function need not be implemented if the driver uses Beacon
2887 	 * template from set_ap() and does not reply to Probe Request frames.
2888 	 */
2889 	int (*hapd_get_ssid)(void *priv, u8 *buf, int len);
2890 
2891 	/**
2892 	 * hapd_set_ssid - Set SSID (AP only)
2893 	 * @priv: Private driver interface data
2894 	 * @buf: SSID
2895 	 * @len: Length of the SSID in octets
2896 	 * Returns: 0 on success, -1 on failure
2897 	 *
2898 	 * DEPRECATED - use set_ap() instead
2899 	 */
2900 	int (*hapd_set_ssid)(void *priv, const u8 *buf, int len);
2901 
2902 	/**
2903 	 * hapd_set_countermeasures - Enable/disable TKIP countermeasures (AP)
2904 	 * @priv: Private driver interface data
2905 	 * @enabled: 1 = countermeasures enabled, 0 = disabled
2906 	 * Returns: 0 on success, -1 on failure
2907 	 *
2908 	 * This need not be implemented if the driver does not take care of
2909 	 * association processing.
2910 	 */
2911 	int (*hapd_set_countermeasures)(void *priv, int enabled);
2912 
2913 	/**
2914 	 * sta_add - Add a station entry
2915 	 * @priv: Private driver interface data
2916 	 * @params: Station parameters
2917 	 * Returns: 0 on success, -1 on failure
2918 	 *
2919 	 * This function is used to add or set (params->set 1) a station
2920 	 * entry in the driver. Adding STA entries is used only if the driver
2921 	 * does not take care of association processing.
2922 	 *
2923 	 * With drivers that don't support full AP client state, this function
2924 	 * is used to add a station entry to the driver once the station has
2925 	 * completed association.
2926 	 *
2927 	 * With TDLS, this function is used to add or set (params->set 1)
2928 	 * TDLS peer entries (even with drivers that do not support full AP
2929 	 * client state).
2930 	 */
2931 	int (*sta_add)(void *priv, struct hostapd_sta_add_params *params);
2932 
2933 	/**
2934 	 * get_inact_sec - Get station inactivity duration (AP only)
2935 	 * @priv: Private driver interface data
2936 	 * @addr: Station address
2937 	 * Returns: Number of seconds station has been inactive, -1 on failure
2938 	 */
2939 	int (*get_inact_sec)(void *priv, const u8 *addr);
2940 
2941 	/**
2942 	 * sta_clear_stats - Clear station statistics (AP only)
2943 	 * @priv: Private driver interface data
2944 	 * @addr: Station address
2945 	 * Returns: 0 on success, -1 on failure
2946 	 */
2947 	int (*sta_clear_stats)(void *priv, const u8 *addr);
2948 
2949 	/**
2950 	 * set_freq - Set channel/frequency (AP only)
2951 	 * @priv: Private driver interface data
2952 	 * @freq: Channel parameters
2953 	 * Returns: 0 on success, -1 on failure
2954 	 */
2955 	int (*set_freq)(void *priv, struct hostapd_freq_params *freq);
2956 
2957 	/**
2958 	 * set_rts - Set RTS threshold
2959 	 * @priv: Private driver interface data
2960 	 * @rts: RTS threshold in octets
2961 	 * Returns: 0 on success, -1 on failure
2962 	 */
2963 	int (*set_rts)(void *priv, int rts);
2964 
2965 	/**
2966 	 * set_frag - Set fragmentation threshold
2967 	 * @priv: Private driver interface data
2968 	 * @frag: Fragmentation threshold in octets
2969 	 * Returns: 0 on success, -1 on failure
2970 	 */
2971 	int (*set_frag)(void *priv, int frag);
2972 
2973 	/**
2974 	 * sta_set_flags - Set station flags (AP only)
2975 	 * @priv: Private driver interface data
2976 	 * @addr: Station address
2977 	 * @total_flags: Bitmap of all WPA_STA_* flags currently set
2978 	 * @flags_or: Bitmap of WPA_STA_* flags to add
2979 	 * @flags_and: Bitmap of WPA_STA_* flags to us as a mask
2980 	 * Returns: 0 on success, -1 on failure
2981 	 */
2982 	int (*sta_set_flags)(void *priv, const u8 *addr,
2983 			     unsigned int total_flags, unsigned int flags_or,
2984 			     unsigned int flags_and);
2985 
2986 	/**
2987 	 * sta_set_airtime_weight - Set station airtime weight (AP only)
2988 	 * @priv: Private driver interface data
2989 	 * @addr: Station address
2990 	 * @weight: New weight for station airtime assignment
2991 	 * Returns: 0 on success, -1 on failure
2992 	 */
2993 	int (*sta_set_airtime_weight)(void *priv, const u8 *addr,
2994 				      unsigned int weight);
2995 
2996 	/**
2997 	 * set_tx_queue_params - Set TX queue parameters
2998 	 * @priv: Private driver interface data
2999 	 * @queue: Queue number (0 = VO, 1 = VI, 2 = BE, 3 = BK)
3000 	 * @aifs: AIFS
3001 	 * @cw_min: cwMin
3002 	 * @cw_max: cwMax
3003 	 * @burst_time: Maximum length for bursting in 0.1 msec units
3004 	 */
3005 	int (*set_tx_queue_params)(void *priv, int queue, int aifs, int cw_min,
3006 				   int cw_max, int burst_time);
3007 
3008 	/**
3009 	 * if_add - Add a virtual interface
3010 	 * @priv: Private driver interface data
3011 	 * @type: Interface type
3012 	 * @ifname: Interface name for the new virtual interface
3013 	 * @addr: Local address to use for the interface or %NULL to use the
3014 	 *	parent interface address
3015 	 * @bss_ctx: BSS context for %WPA_IF_AP_BSS interfaces
3016 	 * @drv_priv: Pointer for overwriting the driver context or %NULL if
3017 	 *	not allowed (applies only to %WPA_IF_AP_BSS type)
3018 	 * @force_ifname: Buffer for returning an interface name that the
3019 	 *	driver ended up using if it differs from the requested ifname
3020 	 * @if_addr: Buffer for returning the allocated interface address
3021 	 *	(this may differ from the requested addr if the driver cannot
3022 	 *	change interface address)
3023 	 * @bridge: Bridge interface to use or %NULL if no bridge configured
3024 	 * @use_existing: Whether to allow existing interface to be used
3025 	 * @setup_ap: Whether to setup AP for %WPA_IF_AP_BSS interfaces
3026 	 * Returns: 0 on success, -1 on failure
3027 	 */
3028 	int (*if_add)(void *priv, enum wpa_driver_if_type type,
3029 		      const char *ifname, const u8 *addr, void *bss_ctx,
3030 		      void **drv_priv, char *force_ifname, u8 *if_addr,
3031 		      const char *bridge, int use_existing, int setup_ap);
3032 
3033 	/**
3034 	 * if_remove - Remove a virtual interface
3035 	 * @priv: Private driver interface data
3036 	 * @type: Interface type
3037 	 * @ifname: Interface name of the virtual interface to be removed
3038 	 * Returns: 0 on success, -1 on failure
3039 	 */
3040 	int (*if_remove)(void *priv, enum wpa_driver_if_type type,
3041 			 const char *ifname);
3042 
3043 	/**
3044 	 * set_sta_vlan - Bind a station into a specific interface (AP only)
3045 	 * @priv: Private driver interface data
3046 	 * @ifname: Interface (main or virtual BSS or VLAN)
3047 	 * @addr: MAC address of the associated station
3048 	 * @vlan_id: VLAN ID
3049 	 * Returns: 0 on success, -1 on failure
3050 	 *
3051 	 * This function is used to bind a station to a specific virtual
3052 	 * interface. It is only used if when virtual interfaces are supported,
3053 	 * e.g., to assign stations to different VLAN interfaces based on
3054 	 * information from a RADIUS server. This allows separate broadcast
3055 	 * domains to be used with a single BSS.
3056 	 */
3057 	int (*set_sta_vlan)(void *priv, const u8 *addr, const char *ifname,
3058 			    int vlan_id);
3059 
3060 	/**
3061 	 * commit - Optional commit changes handler (AP only)
3062 	 * @priv: driver private data
3063 	 * Returns: 0 on success, -1 on failure
3064 	 *
3065 	 * This optional handler function can be registered if the driver
3066 	 * interface implementation needs to commit changes (e.g., by setting
3067 	 * network interface up) at the end of initial configuration. If set,
3068 	 * this handler will be called after initial setup has been completed.
3069 	 */
3070 	int (*commit)(void *priv);
3071 
3072 	/**
3073 	 * send_ether - Send an ethernet packet (AP only)
3074 	 * @priv: private driver interface data
3075 	 * @dst: Destination MAC address
3076 	 * @src: Source MAC address
3077 	 * @proto: Ethertype
3078 	 * @data: EAPOL packet starting with IEEE 802.1X header
3079 	 * @data_len: Length of the EAPOL packet in octets
3080 	 * Returns: 0 on success, -1 on failure
3081 	 */
3082 	int (*send_ether)(void *priv, const u8 *dst, const u8 *src, u16 proto,
3083 			  const u8 *data, size_t data_len);
3084 
3085 	/**
3086 	 * set_radius_acl_auth - Notification of RADIUS ACL change
3087 	 * @priv: Private driver interface data
3088 	 * @mac: MAC address of the station
3089 	 * @accepted: Whether the station was accepted
3090 	 * @session_timeout: Session timeout for the station
3091 	 * Returns: 0 on success, -1 on failure
3092 	 */
3093 	int (*set_radius_acl_auth)(void *priv, const u8 *mac, int accepted,
3094 				   u32 session_timeout);
3095 
3096 	/**
3097 	 * set_radius_acl_expire - Notification of RADIUS ACL expiration
3098 	 * @priv: Private driver interface data
3099 	 * @mac: MAC address of the station
3100 	 * Returns: 0 on success, -1 on failure
3101 	 */
3102 	int (*set_radius_acl_expire)(void *priv, const u8 *mac);
3103 
3104 	/**
3105 	 * set_ap_wps_ie - Add WPS IE(s) into Beacon/Probe Response frames (AP)
3106 	 * @priv: Private driver interface data
3107 	 * @beacon: WPS IE(s) for Beacon frames or %NULL to remove extra IE(s)
3108 	 * @proberesp: WPS IE(s) for Probe Response frames or %NULL to remove
3109 	 *	extra IE(s)
3110 	 * @assocresp: WPS IE(s) for (Re)Association Response frames or %NULL
3111 	 *	to remove extra IE(s)
3112 	 * Returns: 0 on success, -1 on failure
3113 	 *
3114 	 * This is an optional function to add WPS IE in the kernel driver for
3115 	 * Beacon and Probe Response frames. This can be left undefined (set
3116 	 * to %NULL) if the driver uses the Beacon template from set_ap()
3117 	 * and does not process Probe Request frames. If the driver takes care
3118 	 * of (Re)Association frame processing, the assocresp buffer includes
3119 	 * WPS IE(s) that need to be added to (Re)Association Response frames
3120 	 * whenever a (Re)Association Request frame indicated use of WPS.
3121 	 *
3122 	 * This will also be used to add P2P IE(s) into Beacon/Probe Response
3123 	 * frames when operating as a GO. The driver is responsible for adding
3124 	 * timing related attributes (e.g., NoA) in addition to the IEs
3125 	 * included here by appending them after these buffers. This call is
3126 	 * also used to provide Probe Response IEs for P2P Listen state
3127 	 * operations for drivers that generate the Probe Response frames
3128 	 * internally.
3129 	 *
3130 	 * DEPRECATED - use set_ap() instead
3131 	 */
3132 	int (*set_ap_wps_ie)(void *priv, const struct wpabuf *beacon,
3133 			     const struct wpabuf *proberesp,
3134 			     const struct wpabuf *assocresp);
3135 
3136 	/**
3137 	 * set_supp_port - Set IEEE 802.1X Supplicant Port status
3138 	 * @priv: Private driver interface data
3139 	 * @authorized: Whether the port is authorized
3140 	 * Returns: 0 on success, -1 on failure
3141 	 */
3142 	int (*set_supp_port)(void *priv, int authorized);
3143 
3144 	/**
3145 	 * set_wds_sta - Bind a station into a 4-address WDS (AP only)
3146 	 * @priv: Private driver interface data
3147 	 * @addr: MAC address of the associated station
3148 	 * @aid: Association ID
3149 	 * @val: 1 = bind to 4-address WDS; 0 = unbind
3150 	 * @bridge_ifname: Bridge interface to use for the WDS station or %NULL
3151 	 *	to indicate that bridge is not to be used
3152 	 * @ifname_wds: Buffer to return the interface name for the new WDS
3153 	 *	station or %NULL to indicate name is not returned.
3154 	 * Returns: 0 on success, -1 on failure
3155 	 */
3156 	int (*set_wds_sta)(void *priv, const u8 *addr, int aid, int val,
3157 			   const char *bridge_ifname, char *ifname_wds);
3158 
3159 	/**
3160 	 * send_action - Transmit an Action frame
3161 	 * @priv: Private driver interface data
3162 	 * @freq: Frequency (in MHz) of the channel
3163 	 * @wait: Time to wait off-channel for a response (in ms), or zero
3164 	 * @dst: Destination MAC address (Address 1)
3165 	 * @src: Source MAC address (Address 2)
3166 	 * @bssid: BSSID (Address 3)
3167 	 * @data: Frame body
3168 	 * @data_len: data length in octets
3169 	 @ @no_cck: Whether CCK rates must not be used to transmit this frame
3170 	 * Returns: 0 on success, -1 on failure
3171 	 *
3172 	 * This command can be used to request the driver to transmit an action
3173 	 * frame to the specified destination.
3174 	 *
3175 	 * If the %WPA_DRIVER_FLAGS_OFFCHANNEL_TX flag is set, the frame will
3176 	 * be transmitted on the given channel and the device will wait for a
3177 	 * response on that channel for the given wait time.
3178 	 *
3179 	 * If the flag is not set, the wait time will be ignored. In this case,
3180 	 * if a remain-on-channel duration is in progress, the frame must be
3181 	 * transmitted on that channel; alternatively the frame may be sent on
3182 	 * the current operational channel (if in associated state in station
3183 	 * mode or while operating as an AP.)
3184 	 *
3185 	 * If @src differs from the device MAC address, use of a random
3186 	 * transmitter address is requested for this message exchange.
3187 	 */
3188 	int (*send_action)(void *priv, unsigned int freq, unsigned int wait,
3189 			   const u8 *dst, const u8 *src, const u8 *bssid,
3190 			   const u8 *data, size_t data_len, int no_cck);
3191 
3192 	/**
3193 	 * send_action_cancel_wait - Cancel action frame TX wait
3194 	 * @priv: Private driver interface data
3195 	 *
3196 	 * This command cancels the wait time associated with sending an action
3197 	 * frame. It is only available when %WPA_DRIVER_FLAGS_OFFCHANNEL_TX is
3198 	 * set in the driver flags.
3199 	 */
3200 	void (*send_action_cancel_wait)(void *priv);
3201 
3202 	/**
3203 	 * remain_on_channel - Remain awake on a channel
3204 	 * @priv: Private driver interface data
3205 	 * @freq: Frequency (in MHz) of the channel
3206 	 * @duration: Duration in milliseconds
3207 	 * Returns: 0 on success, -1 on failure
3208 	 *
3209 	 * This command is used to request the driver to remain awake on the
3210 	 * specified channel for the specified duration and report received
3211 	 * Action frames with EVENT_RX_MGMT events. Optionally, received
3212 	 * Probe Request frames may also be requested to be reported by calling
3213 	 * probe_req_report(). These will be reported with EVENT_RX_PROBE_REQ.
3214 	 *
3215 	 * The driver may not be at the requested channel when this function
3216 	 * returns, i.e., the return code is only indicating whether the
3217 	 * request was accepted. The caller will need to wait until the
3218 	 * EVENT_REMAIN_ON_CHANNEL event indicates that the driver has
3219 	 * completed the channel change. This may take some time due to other
3220 	 * need for the radio and the caller should be prepared to timing out
3221 	 * its wait since there are no guarantees on when this request can be
3222 	 * executed.
3223 	 */
3224 	int (*remain_on_channel)(void *priv, unsigned int freq,
3225 				 unsigned int duration);
3226 
3227 	/**
3228 	 * cancel_remain_on_channel - Cancel remain-on-channel operation
3229 	 * @priv: Private driver interface data
3230 	 *
3231 	 * This command can be used to cancel a remain-on-channel operation
3232 	 * before its originally requested duration has passed. This could be
3233 	 * used, e.g., when remain_on_channel() is used to request extra time
3234 	 * to receive a response to an Action frame and the response is
3235 	 * received when there is still unneeded time remaining on the
3236 	 * remain-on-channel operation.
3237 	 */
3238 	int (*cancel_remain_on_channel)(void *priv);
3239 
3240 	/**
3241 	 * probe_req_report - Request Probe Request frames to be indicated
3242 	 * @priv: Private driver interface data
3243 	 * @report: Whether to report received Probe Request frames
3244 	 * Returns: 0 on success, -1 on failure (or if not supported)
3245 	 *
3246 	 * This command can be used to request the driver to indicate when
3247 	 * Probe Request frames are received with EVENT_RX_PROBE_REQ events.
3248 	 * Since this operation may require extra resources, e.g., due to less
3249 	 * optimal hardware/firmware RX filtering, many drivers may disable
3250 	 * Probe Request reporting at least in station mode. This command is
3251 	 * used to notify the driver when the Probe Request frames need to be
3252 	 * reported, e.g., during remain-on-channel operations.
3253 	 */
3254 	int (*probe_req_report)(void *priv, int report);
3255 
3256 	/**
3257 	 * deinit_ap - Deinitialize AP mode
3258 	 * @priv: Private driver interface data
3259 	 * Returns: 0 on success, -1 on failure (or if not supported)
3260 	 *
3261 	 * This optional function can be used to disable AP mode related
3262 	 * configuration. If the interface was not dynamically added,
3263 	 * change the driver mode to station mode to allow normal station
3264 	 * operations like scanning to be completed.
3265 	 */
3266 	int (*deinit_ap)(void *priv);
3267 
3268 	/**
3269 	 * deinit_p2p_cli - Deinitialize P2P client mode
3270 	 * @priv: Private driver interface data
3271 	 * Returns: 0 on success, -1 on failure (or if not supported)
3272 	 *
3273 	 * This optional function can be used to disable P2P client mode. If the
3274 	 * interface was not dynamically added, change the interface type back
3275 	 * to station mode.
3276 	 */
3277 	int (*deinit_p2p_cli)(void *priv);
3278 
3279 	/**
3280 	 * suspend - Notification on system suspend/hibernate event
3281 	 * @priv: Private driver interface data
3282 	 */
3283 	void (*suspend)(void *priv);
3284 
3285 	/**
3286 	 * resume - Notification on system resume/thaw event
3287 	 * @priv: Private driver interface data
3288 	 */
3289 	void (*resume)(void *priv);
3290 
3291 	/**
3292 	 * signal_monitor - Set signal monitoring parameters
3293 	 * @priv: Private driver interface data
3294 	 * @threshold: Threshold value for signal change events; 0 = disabled
3295 	 * @hysteresis: Minimum change in signal strength before indicating a
3296 	 *	new event
3297 	 * Returns: 0 on success, -1 on failure (or if not supported)
3298 	 *
3299 	 * This function can be used to configure monitoring of signal strength
3300 	 * with the current AP. Whenever signal strength drops below the
3301 	 * %threshold value or increases above it, EVENT_SIGNAL_CHANGE event
3302 	 * should be generated assuming the signal strength has changed at
3303 	 * least %hysteresis from the previously indicated signal change event.
3304 	 */
3305 	int (*signal_monitor)(void *priv, int threshold, int hysteresis);
3306 
3307 	/**
3308 	 * send_frame - Send IEEE 802.11 frame (testing use only)
3309 	 * @priv: Private driver interface data
3310 	 * @data: IEEE 802.11 frame with IEEE 802.11 header
3311 	 * @data_len: Size of the frame
3312 	 * @encrypt: Whether to encrypt the frame (if keys are set)
3313 	 * Returns: 0 on success, -1 on failure
3314 	 *
3315 	 * This function is only used for debugging purposes and is not
3316 	 * required to be implemented for normal operations.
3317 	 */
3318 	int (*send_frame)(void *priv, const u8 *data, size_t data_len,
3319 			  int encrypt);
3320 
3321 	/**
3322 	 * get_noa - Get current Notice of Absence attribute payload
3323 	 * @priv: Private driver interface data
3324 	 * @buf: Buffer for returning NoA
3325 	 * @buf_len: Buffer length in octets
3326 	 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
3327 	 * advertized, or -1 on failure
3328 	 *
3329 	 * This function is used to fetch the current Notice of Absence
3330 	 * attribute value from GO.
3331 	 */
3332 	int (*get_noa)(void *priv, u8 *buf, size_t buf_len);
3333 
3334 	/**
3335 	 * set_noa - Set Notice of Absence parameters for GO (testing)
3336 	 * @priv: Private driver interface data
3337 	 * @count: Count
3338 	 * @start: Start time in ms from next TBTT
3339 	 * @duration: Duration in ms
3340 	 * Returns: 0 on success or -1 on failure
3341 	 *
3342 	 * This function is used to set Notice of Absence parameters for GO. It
3343 	 * is used only for testing. To disable NoA, all parameters are set to
3344 	 * 0.
3345 	 */
3346 	int (*set_noa)(void *priv, u8 count, int start, int duration);
3347 
3348 	/**
3349 	 * set_p2p_powersave - Set P2P power save options
3350 	 * @priv: Private driver interface data
3351 	 * @legacy_ps: 0 = disable, 1 = enable, 2 = maximum PS, -1 = no change
3352 	 * @opp_ps: 0 = disable, 1 = enable, -1 = no change
3353 	 * @ctwindow: 0.. = change (msec), -1 = no change
3354 	 * Returns: 0 on success or -1 on failure
3355 	 */
3356 	int (*set_p2p_powersave)(void *priv, int legacy_ps, int opp_ps,
3357 				 int ctwindow);
3358 
3359 	/**
3360 	 * ampdu - Enable/disable aggregation
3361 	 * @priv: Private driver interface data
3362 	 * @ampdu: 1/0 = enable/disable A-MPDU aggregation
3363 	 * Returns: 0 on success or -1 on failure
3364 	 */
3365 	int (*ampdu)(void *priv, int ampdu);
3366 
3367 	/**
3368 	 * get_radio_name - Get physical radio name for the device
3369 	 * @priv: Private driver interface data
3370 	 * Returns: Radio name or %NULL if not known
3371 	 *
3372 	 * The returned data must not be modified by the caller. It is assumed
3373 	 * that any interface that has the same radio name as another is
3374 	 * sharing the same physical radio. This information can be used to
3375 	 * share scan results etc. information between the virtual interfaces
3376 	 * to speed up various operations.
3377 	 */
3378 	const char * (*get_radio_name)(void *priv);
3379 
3380 	/**
3381 	 * send_tdls_mgmt - for sending TDLS management packets
3382 	 * @priv: private driver interface data
3383 	 * @dst: Destination (peer) MAC address
3384 	 * @action_code: TDLS action code for the mssage
3385 	 * @dialog_token: Dialog Token to use in the message (if needed)
3386 	 * @status_code: Status Code or Reason Code to use (if needed)
3387 	 * @peer_capab: TDLS peer capability (TDLS_PEER_* bitfield)
3388 	 * @initiator: Is the current end the TDLS link initiator
3389 	 * @buf: TDLS IEs to add to the message
3390 	 * @len: Length of buf in octets
3391 	 * Returns: 0 on success, negative (<0) on failure
3392 	 *
3393 	 * This optional function can be used to send packet to driver which is
3394 	 * responsible for receiving and sending all TDLS packets.
3395 	 */
3396 	int (*send_tdls_mgmt)(void *priv, const u8 *dst, u8 action_code,
3397 			      u8 dialog_token, u16 status_code, u32 peer_capab,
3398 			      int initiator, const u8 *buf, size_t len);
3399 
3400 	/**
3401 	 * tdls_oper - Ask the driver to perform high-level TDLS operations
3402 	 * @priv: Private driver interface data
3403 	 * @oper: TDLS high-level operation. See %enum tdls_oper
3404 	 * @peer: Destination (peer) MAC address
3405 	 * Returns: 0 on success, negative (<0) on failure
3406 	 *
3407 	 * This optional function can be used to send high-level TDLS commands
3408 	 * to the driver.
3409 	 */
3410 	int (*tdls_oper)(void *priv, enum tdls_oper oper, const u8 *peer);
3411 
3412 	/**
3413 	 * wnm_oper - Notify driver of the WNM frame reception
3414 	 * @priv: Private driver interface data
3415 	 * @oper: WNM operation. See %enum wnm_oper
3416 	 * @peer: Destination (peer) MAC address
3417 	 * @buf: Buffer for the driver to fill in (for getting IE)
3418 	 * @buf_len: Return the len of buf
3419 	 * Returns: 0 on success, negative (<0) on failure
3420 	 */
3421 	int (*wnm_oper)(void *priv, enum wnm_oper oper, const u8 *peer,
3422 			u8 *buf, u16 *buf_len);
3423 
3424 	/**
3425 	 * set_qos_map - Set QoS Map
3426 	 * @priv: Private driver interface data
3427 	 * @qos_map_set: QoS Map
3428 	 * @qos_map_set_len: Length of QoS Map
3429 	 */
3430 	int (*set_qos_map)(void *priv, const u8 *qos_map_set,
3431 			   u8 qos_map_set_len);
3432 
3433 	/**
3434 	 * br_add_ip_neigh - Add a neigh to the bridge ip neigh table
3435 	 * @priv: Private driver interface data
3436 	 * @version: IP version of the IP address, 4 or 6
3437 	 * @ipaddr: IP address for the neigh entry
3438 	 * @prefixlen: IP address prefix length
3439 	 * @addr: Corresponding MAC address
3440 	 * Returns: 0 on success, negative (<0) on failure
3441 	 */
3442 	int (*br_add_ip_neigh)(void *priv, u8 version, const u8 *ipaddr,
3443 			       int prefixlen, const u8 *addr);
3444 
3445 	/**
3446 	 * br_delete_ip_neigh - Remove a neigh from the bridge ip neigh table
3447 	 * @priv: Private driver interface data
3448 	 * @version: IP version of the IP address, 4 or 6
3449 	 * @ipaddr: IP address for the neigh entry
3450 	 * Returns: 0 on success, negative (<0) on failure
3451 	 */
3452 	int (*br_delete_ip_neigh)(void *priv, u8 version, const u8 *ipaddr);
3453 
3454 	/**
3455 	 * br_port_set_attr - Set a bridge port attribute
3456 	 * @attr: Bridge port attribute to set
3457 	 * @val: Value to be set
3458 	 * Returns: 0 on success, negative (<0) on failure
3459 	 */
3460 	int (*br_port_set_attr)(void *priv, enum drv_br_port_attr attr,
3461 				unsigned int val);
3462 
3463 	/**
3464 	 * br_port_set_attr - Set a bridge network parameter
3465 	 * @param: Bridge parameter to set
3466 	 * @val: Value to be set
3467 	 * Returns: 0 on success, negative (<0) on failure
3468 	 */
3469 	int (*br_set_net_param)(void *priv, enum drv_br_net_param param,
3470 				unsigned int val);
3471 
3472 	/**
3473 	 * set_wowlan - Set wake-on-wireless triggers
3474 	 * @priv: Private driver interface data
3475 	 * @triggers: wowlan triggers
3476 	 */
3477 	int (*set_wowlan)(void *priv, const struct wowlan_triggers *triggers);
3478 
3479 	/**
3480 	 * signal_poll - Get current connection information
3481 	 * @priv: Private driver interface data
3482 	 * @signal_info: Connection info structure
3483 	 */
3484 	int (*signal_poll)(void *priv, struct wpa_signal_info *signal_info);
3485 
3486 	/**
3487 	 * channel_info - Get parameters of the current operating channel
3488 	 * @priv: Private driver interface data
3489 	 * @channel_info: Channel info structure
3490 	 * Returns: 0 on success, negative (<0) on failure
3491 	 */
3492 	int (*channel_info)(void *priv, struct wpa_channel_info *channel_info);
3493 
3494 	/**
3495 	 * set_authmode - Set authentication algorithm(s) for static WEP
3496 	 * @priv: Private driver interface data
3497 	 * @authmode: 1=Open System, 2=Shared Key, 3=both
3498 	 * Returns: 0 on success, -1 on failure
3499 	 *
3500 	 * This function can be used to set authentication algorithms for AP
3501 	 * mode when static WEP is used. If the driver uses user space MLME/SME
3502 	 * implementation, there is no need to implement this function.
3503 	 *
3504 	 * DEPRECATED - use set_ap() instead
3505 	 */
3506 	int (*set_authmode)(void *priv, int authmode);
3507 
3508 #ifdef ANDROID
3509 	/**
3510 	 * driver_cmd - Execute driver-specific command
3511 	 * @priv: Private driver interface data
3512 	 * @cmd: Command to execute
3513 	 * @buf: Return buffer
3514 	 * @buf_len: Buffer length
3515 	 * Returns: 0 on success, -1 on failure
3516 	 */
3517 	int (*driver_cmd)(void *priv, char *cmd, char *buf, size_t buf_len);
3518 #endif /* ANDROID */
3519 
3520 	/**
3521 	 * vendor_cmd - Execute vendor specific command
3522 	 * @priv: Private driver interface data
3523 	 * @vendor_id: Vendor id
3524 	 * @subcmd: Vendor command id
3525 	 * @data: Vendor command parameters (%NULL if no parameters)
3526 	 * @data_len: Data length
3527 	 * @buf: Return buffer (%NULL to ignore reply)
3528 	 * Returns: 0 on success, negative (<0) on failure
3529 	 *
3530 	 * This function handles vendor specific commands that are passed to
3531 	 * the driver/device. The command is identified by vendor id and
3532 	 * command id. Parameters can be passed as argument to the command
3533 	 * in the data buffer. Reply (if any) will be filled in the supplied
3534 	 * return buffer.
3535 	 *
3536 	 * The exact driver behavior is driver interface and vendor specific. As
3537 	 * an example, this will be converted to a vendor specific cfg80211
3538 	 * command in case of the nl80211 driver interface.
3539 	 */
3540 	int (*vendor_cmd)(void *priv, unsigned int vendor_id,
3541 			  unsigned int subcmd, const u8 *data, size_t data_len,
3542 			  struct wpabuf *buf);
3543 
3544 	/**
3545 	 * set_rekey_info - Set rekey information
3546 	 * @priv: Private driver interface data
3547 	 * @kek: Current KEK
3548 	 * @kek_len: KEK length in octets
3549 	 * @kck: Current KCK
3550 	 * @kck_len: KCK length in octets
3551 	 * @replay_ctr: Current EAPOL-Key Replay Counter
3552 	 *
3553 	 * This optional function can be used to provide information for the
3554 	 * driver/firmware to process EAPOL-Key frames in Group Key Handshake
3555 	 * while the host (including wpa_supplicant) is sleeping.
3556 	 */
3557 	void (*set_rekey_info)(void *priv, const u8 *kek, size_t kek_len,
3558 			       const u8 *kck, size_t kck_len,
3559 			       const u8 *replay_ctr);
3560 
3561 	/**
3562 	 * sta_assoc - Station association indication
3563 	 * @priv: Private driver interface data
3564 	 * @own_addr: Source address and BSSID for association frame
3565 	 * @addr: MAC address of the station to associate
3566 	 * @reassoc: flag to indicate re-association
3567 	 * @status: association response status code
3568 	 * @ie: assoc response ie buffer
3569 	 * @len: ie buffer length
3570 	 * Returns: 0 on success, -1 on failure
3571 	 *
3572 	 * This function indicates the driver to send (Re)Association
3573 	 * Response frame to the station.
3574 	 */
3575 	 int (*sta_assoc)(void *priv, const u8 *own_addr, const u8 *addr,
3576 			  int reassoc, u16 status, const u8 *ie, size_t len);
3577 
3578 	/**
3579 	 * sta_auth - Station authentication indication
3580 	 * @priv: private driver interface data
3581 	 * @params: Station authentication parameters
3582 	 *
3583 	 * Returns: 0 on success, -1 on failure
3584 	 */
3585 	 int (*sta_auth)(void *priv,
3586 			 struct wpa_driver_sta_auth_params *params);
3587 
3588 	/**
3589 	 * add_tspec - Add traffic stream
3590 	 * @priv: Private driver interface data
3591 	 * @addr: MAC address of the station to associate
3592 	 * @tspec_ie: tspec ie buffer
3593 	 * @tspec_ielen: tspec ie length
3594 	 * Returns: 0 on success, -1 on failure
3595 	 *
3596 	 * This function adds the traffic steam for the station
3597 	 * and fills the medium_time in tspec_ie.
3598 	 */
3599 	 int (*add_tspec)(void *priv, const u8 *addr, u8 *tspec_ie,
3600 			  size_t tspec_ielen);
3601 
3602 	/**
3603 	 * add_sta_node - Add a station node in the driver
3604 	 * @priv: Private driver interface data
3605 	 * @addr: MAC address of the station to add
3606 	 * @auth_alg: authentication algorithm used by the station
3607 	 * Returns: 0 on success, -1 on failure
3608 	 *
3609 	 * This function adds the station node in the driver, when
3610 	 * the station gets added by FT-over-DS.
3611 	 */
3612 	int (*add_sta_node)(void *priv, const u8 *addr, u16 auth_alg);
3613 
3614 	/**
3615 	 * sched_scan - Request the driver to initiate scheduled scan
3616 	 * @priv: Private driver interface data
3617 	 * @params: Scan parameters
3618 	 * Returns: 0 on success, -1 on failure
3619 	 *
3620 	 * This operation should be used for scheduled scan offload to
3621 	 * the hardware. Every time scan results are available, the
3622 	 * driver should report scan results event for wpa_supplicant
3623 	 * which will eventually request the results with
3624 	 * wpa_driver_get_scan_results2(). This operation is optional
3625 	 * and if not provided or if it returns -1, we fall back to
3626 	 * normal host-scheduled scans.
3627 	 */
3628 	int (*sched_scan)(void *priv, struct wpa_driver_scan_params *params);
3629 
3630 	/**
3631 	 * stop_sched_scan - Request the driver to stop a scheduled scan
3632 	 * @priv: Private driver interface data
3633 	 * Returns: 0 on success, -1 on failure
3634 	 *
3635 	 * This should cause the scheduled scan to be stopped and
3636 	 * results should stop being sent. Must be supported if
3637 	 * sched_scan is supported.
3638 	 */
3639 	int (*stop_sched_scan)(void *priv);
3640 
3641 	/**
3642 	 * poll_client - Probe (null data or such) the given station
3643 	 * @priv: Private driver interface data
3644 	 * @own_addr: MAC address of sending interface
3645 	 * @addr: MAC address of the station to probe
3646 	 * @qos: Indicates whether station is QoS station
3647 	 *
3648 	 * This function is used to verify whether an associated station is
3649 	 * still present. This function does not need to be implemented if the
3650 	 * driver provides such inactivity polling mechanism.
3651 	 */
3652 	void (*poll_client)(void *priv, const u8 *own_addr,
3653 			    const u8 *addr, int qos);
3654 
3655 	/**
3656 	 * radio_disable - Disable/enable radio
3657 	 * @priv: Private driver interface data
3658 	 * @disabled: 1=disable 0=enable radio
3659 	 * Returns: 0 on success, -1 on failure
3660 	 *
3661 	 * This optional command is for testing purposes. It can be used to
3662 	 * disable the radio on a testbed device to simulate out-of-radio-range
3663 	 * conditions.
3664 	 */
3665 	int (*radio_disable)(void *priv, int disabled);
3666 
3667 	/**
3668 	 * switch_channel - Announce channel switch and migrate the GO to the
3669 	 * given frequency
3670 	 * @priv: Private driver interface data
3671 	 * @settings: Settings for CSA period and new channel
3672 	 * Returns: 0 on success, -1 on failure
3673 	 *
3674 	 * This function is used to move the GO to the legacy STA channel to
3675 	 * avoid frequency conflict in single channel concurrency.
3676 	 */
3677 	int (*switch_channel)(void *priv, struct csa_settings *settings);
3678 
3679 	/**
3680 	 * add_tx_ts - Add traffic stream
3681 	 * @priv: Private driver interface data
3682 	 * @tsid: Traffic stream ID
3683 	 * @addr: Receiver address
3684 	 * @user_prio: User priority of the traffic stream
3685 	 * @admitted_time: Admitted time for this TS in units of
3686 	 *	32 microsecond periods (per second).
3687 	 * Returns: 0 on success, -1 on failure
3688 	 */
3689 	int (*add_tx_ts)(void *priv, u8 tsid, const u8 *addr, u8 user_prio,
3690 			 u16 admitted_time);
3691 
3692 	/**
3693 	 * del_tx_ts - Delete traffic stream
3694 	 * @priv: Private driver interface data
3695 	 * @tsid: Traffic stream ID
3696 	 * @addr: Receiver address
3697 	 * Returns: 0 on success, -1 on failure
3698 	 */
3699 	int (*del_tx_ts)(void *priv, u8 tsid, const u8 *addr);
3700 
3701 	/**
3702 	 * Enable channel-switching with TDLS peer
3703 	 * @priv: Private driver interface data
3704 	 * @addr: MAC address of the TDLS peer
3705 	 * @oper_class: Operating class of the switch channel
3706 	 * @params: Channel specification
3707 	 * Returns: 0 on success, -1 on failure
3708 	 *
3709 	 * The function indicates to driver that it can start switching to a
3710 	 * different channel with a specified TDLS peer. The switching is
3711 	 * assumed on until canceled with tdls_disable_channel_switch().
3712 	 */
3713 	int (*tdls_enable_channel_switch)(
3714 		void *priv, const u8 *addr, u8 oper_class,
3715 		const struct hostapd_freq_params *params);
3716 
3717 	/**
3718 	 * Disable channel switching with TDLS peer
3719 	 * @priv: Private driver interface data
3720 	 * @addr: MAC address of the TDLS peer
3721 	 * Returns: 0 on success, -1 on failure
3722 	 *
3723 	 * This function indicates to the driver that it should stop switching
3724 	 * with a given TDLS peer.
3725 	 */
3726 	int (*tdls_disable_channel_switch)(void *priv, const u8 *addr);
3727 
3728 	/**
3729 	 * start_dfs_cac - Listen for radar interference on the channel
3730 	 * @priv: Private driver interface data
3731 	 * @freq: Channel parameters
3732 	 * Returns: 0 on success, -1 on failure
3733 	 */
3734 	int (*start_dfs_cac)(void *priv, struct hostapd_freq_params *freq);
3735 
3736 	/**
3737 	 * stop_ap - Removes beacon from AP
3738 	 * @priv: Private driver interface data
3739 	 * Returns: 0 on success, -1 on failure (or if not supported)
3740 	 *
3741 	 * This optional function can be used to disable AP mode related
3742 	 * configuration. Unlike deinit_ap, it does not change to station
3743 	 * mode.
3744 	 */
3745 	int (*stop_ap)(void *priv);
3746 
3747 	/**
3748 	 * get_survey - Retrieve survey data
3749 	 * @priv: Private driver interface data
3750 	 * @freq: If set, survey data for the specified frequency is only
3751 	 *	being requested. If not set, all survey data is requested.
3752 	 * Returns: 0 on success, -1 on failure
3753 	 *
3754 	 * Use this to retrieve:
3755 	 *
3756 	 * - the observed channel noise floor
3757 	 * - the amount of time we have spent on the channel
3758 	 * - the amount of time during which we have spent on the channel that
3759 	 *   the radio has determined the medium is busy and we cannot
3760 	 *   transmit
3761 	 * - the amount of time we have spent receiving data
3762 	 * - the amount of time we have spent transmitting data
3763 	 *
3764 	 * This data can be used for spectrum heuristics. One example is
3765 	 * Automatic Channel Selection (ACS). The channel survey data is
3766 	 * kept on a linked list on the channel data, one entry is added
3767 	 * for each survey. The min_nf of the channel is updated for each
3768 	 * survey.
3769 	 */
3770 	int (*get_survey)(void *priv, unsigned int freq);
3771 
3772 	/**
3773 	 * status - Get driver interface status information
3774 	 * @priv: Private driver interface data
3775 	 * @buf: Buffer for printing the status information
3776 	 * @buflen: Maximum length of the buffer
3777 	 * Returns: Length of written status information or -1 on failure
3778 	 */
3779 	int (*status)(void *priv, char *buf, size_t buflen);
3780 
3781 	/**
3782 	 * roaming - Set roaming policy for driver-based BSS selection
3783 	 * @priv: Private driver interface data
3784 	 * @allowed: Whether roaming within ESS is allowed
3785 	 * @bssid: Forced BSSID if roaming is disabled or %NULL if not set
3786 	 * Returns: Length of written status information or -1 on failure
3787 	 *
3788 	 * This optional callback can be used to update roaming policy from the
3789 	 * associate() command (bssid being set there indicates that the driver
3790 	 * should not roam before getting this roaming() call to allow roaming.
3791 	 * If the driver does not indicate WPA_DRIVER_FLAGS_BSS_SELECTION
3792 	 * capability, roaming policy is handled within wpa_supplicant and there
3793 	 * is no need to implement or react to this callback.
3794 	 */
3795 	int (*roaming)(void *priv, int allowed, const u8 *bssid);
3796 
3797 	/**
3798 	 * disable_fils - Enable/disable FILS feature
3799 	 * @priv: Private driver interface data
3800 	 * @disable: 0-enable and 1-disable FILS feature
3801 	 * Returns: 0 on success, -1 on failure
3802 	 *
3803 	 * This callback can be used to configure driver and below layers to
3804 	 * enable/disable all FILS features.
3805 	 */
3806 	int (*disable_fils)(void *priv, int disable);
3807 
3808 	/**
3809 	 * set_mac_addr - Set MAC address
3810 	 * @priv: Private driver interface data
3811 	 * @addr: MAC address to use or %NULL for setting back to permanent
3812 	 * Returns: 0 on success, -1 on failure
3813 	 */
3814 	int (*set_mac_addr)(void *priv, const u8 *addr);
3815 
3816 #ifdef CONFIG_MACSEC
3817 	int (*macsec_init)(void *priv, struct macsec_init_params *params);
3818 
3819 	int (*macsec_deinit)(void *priv);
3820 
3821 	/**
3822 	 * macsec_get_capability - Inform MKA of this driver's capability
3823 	 * @priv: Private driver interface data
3824 	 * @cap: Driver's capability
3825 	 * Returns: 0 on success, -1 on failure
3826 	 */
3827 	int (*macsec_get_capability)(void *priv, enum macsec_cap *cap);
3828 
3829 	/**
3830 	 * enable_protect_frames - Set protect frames status
3831 	 * @priv: Private driver interface data
3832 	 * @enabled: TRUE = protect frames enabled
3833 	 *           FALSE = protect frames disabled
3834 	 * Returns: 0 on success, -1 on failure (or if not supported)
3835 	 */
3836 	int (*enable_protect_frames)(void *priv, Boolean enabled);
3837 
3838 	/**
3839 	 * enable_encrypt - Set encryption status
3840 	 * @priv: Private driver interface data
3841 	 * @enabled: TRUE = encrypt outgoing traffic
3842 	 *           FALSE = integrity-only protection on outgoing traffic
3843 	 * Returns: 0 on success, -1 on failure (or if not supported)
3844 	 */
3845 	int (*enable_encrypt)(void *priv, Boolean enabled);
3846 
3847 	/**
3848 	 * set_replay_protect - Set replay protect status and window size
3849 	 * @priv: Private driver interface data
3850 	 * @enabled: TRUE = replay protect enabled
3851 	 *           FALSE = replay protect disabled
3852 	 * @window: replay window size, valid only when replay protect enabled
3853 	 * Returns: 0 on success, -1 on failure (or if not supported)
3854 	 */
3855 	int (*set_replay_protect)(void *priv, Boolean enabled, u32 window);
3856 
3857 	/**
3858 	 * set_current_cipher_suite - Set current cipher suite
3859 	 * @priv: Private driver interface data
3860 	 * @cs: EUI64 identifier
3861 	 * Returns: 0 on success, -1 on failure (or if not supported)
3862 	 */
3863 	int (*set_current_cipher_suite)(void *priv, u64 cs);
3864 
3865 	/**
3866 	 * enable_controlled_port - Set controlled port status
3867 	 * @priv: Private driver interface data
3868 	 * @enabled: TRUE = controlled port enabled
3869 	 *           FALSE = controlled port disabled
3870 	 * Returns: 0 on success, -1 on failure (or if not supported)
3871 	 */
3872 	int (*enable_controlled_port)(void *priv, Boolean enabled);
3873 
3874 	/**
3875 	 * get_receive_lowest_pn - Get receive lowest pn
3876 	 * @priv: Private driver interface data
3877 	 * @sa: secure association
3878 	 * Returns: 0 on success, -1 on failure (or if not supported)
3879 	 */
3880 	int (*get_receive_lowest_pn)(void *priv, struct receive_sa *sa);
3881 
3882 	/**
3883 	 * get_transmit_next_pn - Get transmit next pn
3884 	 * @priv: Private driver interface data
3885 	 * @sa: secure association
3886 	 * Returns: 0 on success, -1 on failure (or if not supported)
3887 	 */
3888 	int (*get_transmit_next_pn)(void *priv, struct transmit_sa *sa);
3889 
3890 	/**
3891 	 * set_transmit_next_pn - Set transmit next pn
3892 	 * @priv: Private driver interface data
3893 	 * @sa: secure association
3894 	 * Returns: 0 on success, -1 on failure (or if not supported)
3895 	 */
3896 	int (*set_transmit_next_pn)(void *priv, struct transmit_sa *sa);
3897 
3898 	/**
3899 	 * set_receive_lowest_pn - Set receive lowest PN
3900 	 * @priv: Private driver interface data
3901 	 * @sa: secure association
3902 	 * Returns: 0 on success, -1 on failure (or if not supported)
3903 	 */
3904 	int (*set_receive_lowest_pn)(void *priv, struct receive_sa *sa);
3905 
3906 	/**
3907 	 * create_receive_sc - create secure channel for receiving
3908 	 * @priv: Private driver interface data
3909 	 * @sc: secure channel
3910 	 * @conf_offset: confidentiality offset (0, 30, or 50)
3911 	 * @validation: frame validation policy (0 = Disabled, 1 = Checked,
3912 	 *	2 = Strict)
3913 	 * Returns: 0 on success, -1 on failure (or if not supported)
3914 	 */
3915 	int (*create_receive_sc)(void *priv, struct receive_sc *sc,
3916 				 unsigned int conf_offset,
3917 				 int validation);
3918 
3919 	/**
3920 	 * delete_receive_sc - delete secure connection for receiving
3921 	 * @priv: private driver interface data from init()
3922 	 * @sc: secure channel
3923 	 * Returns: 0 on success, -1 on failure
3924 	 */
3925 	int (*delete_receive_sc)(void *priv, struct receive_sc *sc);
3926 
3927 	/**
3928 	 * create_receive_sa - create secure association for receive
3929 	 * @priv: private driver interface data from init()
3930 	 * @sa: secure association
3931 	 * Returns: 0 on success, -1 on failure
3932 	 */
3933 	int (*create_receive_sa)(void *priv, struct receive_sa *sa);
3934 
3935 	/**
3936 	 * delete_receive_sa - Delete secure association for receive
3937 	 * @priv: Private driver interface data from init()
3938 	 * @sa: Secure association
3939 	 * Returns: 0 on success, -1 on failure
3940 	 */
3941 	int (*delete_receive_sa)(void *priv, struct receive_sa *sa);
3942 
3943 	/**
3944 	 * enable_receive_sa - enable the SA for receive
3945 	 * @priv: private driver interface data from init()
3946 	 * @sa: secure association
3947 	 * Returns: 0 on success, -1 on failure
3948 	 */
3949 	int (*enable_receive_sa)(void *priv, struct receive_sa *sa);
3950 
3951 	/**
3952 	 * disable_receive_sa - disable SA for receive
3953 	 * @priv: private driver interface data from init()
3954 	 * @sa: secure association
3955 	 * Returns: 0 on success, -1 on failure
3956 	 */
3957 	int (*disable_receive_sa)(void *priv, struct receive_sa *sa);
3958 
3959 	/**
3960 	 * create_transmit_sc - create secure connection for transmit
3961 	 * @priv: private driver interface data from init()
3962 	 * @sc: secure channel
3963 	 * @conf_offset: confidentiality offset (0, 30, or 50)
3964 	 * Returns: 0 on success, -1 on failure
3965 	 */
3966 	int (*create_transmit_sc)(void *priv, struct transmit_sc *sc,
3967 				  unsigned int conf_offset);
3968 
3969 	/**
3970 	 * delete_transmit_sc - delete secure connection for transmit
3971 	 * @priv: private driver interface data from init()
3972 	 * @sc: secure channel
3973 	 * Returns: 0 on success, -1 on failure
3974 	 */
3975 	int (*delete_transmit_sc)(void *priv, struct transmit_sc *sc);
3976 
3977 	/**
3978 	 * create_transmit_sa - create secure association for transmit
3979 	 * @priv: private driver interface data from init()
3980 	 * @sa: secure association
3981 	 * Returns: 0 on success, -1 on failure
3982 	 */
3983 	int (*create_transmit_sa)(void *priv, struct transmit_sa *sa);
3984 
3985 	/**
3986 	 * delete_transmit_sa - Delete secure association for transmit
3987 	 * @priv: Private driver interface data from init()
3988 	 * @sa: Secure association
3989 	 * Returns: 0 on success, -1 on failure
3990 	 */
3991 	int (*delete_transmit_sa)(void *priv, struct transmit_sa *sa);
3992 
3993 	/**
3994 	 * enable_transmit_sa - enable SA for transmit
3995 	 * @priv: private driver interface data from init()
3996 	 * @sa: secure association
3997 	 * Returns: 0 on success, -1 on failure
3998 	 */
3999 	int (*enable_transmit_sa)(void *priv, struct transmit_sa *sa);
4000 
4001 	/**
4002 	 * disable_transmit_sa - disable SA for transmit
4003 	 * @priv: private driver interface data from init()
4004 	 * @sa: secure association
4005 	 * Returns: 0 on success, -1 on failure
4006 	 */
4007 	int (*disable_transmit_sa)(void *priv, struct transmit_sa *sa);
4008 #endif /* CONFIG_MACSEC */
4009 
4010 	/**
4011 	 * init_mesh - Driver specific initialization for mesh
4012 	 * @priv: Private driver interface data
4013 	 * Returns: 0 on success, -1 on failure
4014 	 */
4015 	int (*init_mesh)(void *priv);
4016 
4017 	/**
4018 	 * join_mesh - Join a mesh network
4019 	 * @priv: Private driver interface data
4020 	 * @params: Mesh configuration parameters
4021 	 * Returns: 0 on success, -1 on failure
4022 	 */
4023 	int (*join_mesh)(void *priv,
4024 			 struct wpa_driver_mesh_join_params *params);
4025 
4026 	/**
4027 	 * leave_mesh - Leave a mesh network
4028 	 * @priv: Private driver interface data
4029 	 * Returns 0 on success, -1 on failure
4030 	 */
4031 	int (*leave_mesh)(void *priv);
4032 
4033 	/**
4034 	 * probe_mesh_link - Inject a frame over direct mesh link to a given
4035 	 *	peer skipping the next_hop lookup from mpath table.
4036 	 * @priv: Private driver interface data
4037 	 * @addr: Peer MAC address
4038 	 * @eth: Ethernet frame to be sent
4039 	 * @len: Ethernet frame lengtn in bytes
4040 	 * Returns 0 on success, -1 on failure
4041 	 */
4042 	int (*probe_mesh_link)(void *priv, const u8 *addr, const u8 *eth,
4043 			       size_t len);
4044 
4045 	/**
4046 	 * do_acs - Automatically select channel
4047 	 * @priv: Private driver interface data
4048 	 * @params: Parameters for ACS
4049 	 * Returns 0 on success, -1 on failure
4050 	 *
4051 	 * This command can be used to offload ACS to the driver if the driver
4052 	 * indicates support for such offloading (WPA_DRIVER_FLAGS_ACS_OFFLOAD).
4053 	 */
4054 	int (*do_acs)(void *priv, struct drv_acs_params *params);
4055 
4056 	/**
4057 	 * set_band - Notify driver of band selection
4058 	 * @priv: Private driver interface data
4059 	 * @band: The selected band(s)
4060 	 * Returns 0 on success, -1 on failure
4061 	 */
4062 	int (*set_band)(void *priv, enum set_band band);
4063 
4064 	/**
4065 	 * get_pref_freq_list - Get preferred frequency list for an interface
4066 	 * @priv: Private driver interface data
4067 	 * @if_type: Interface type
4068 	 * @num: Number of channels
4069 	 * @freq_list: Preferred channel frequency list encoded in MHz values
4070 	 * Returns 0 on success, -1 on failure
4071 	 *
4072 	 * This command can be used to query the preferred frequency list from
4073 	 * the driver specific to a particular interface type.
4074 	 */
4075 	int (*get_pref_freq_list)(void *priv, enum wpa_driver_if_type if_type,
4076 				  unsigned int *num, unsigned int *freq_list);
4077 
4078 	/**
4079 	 * set_prob_oper_freq - Indicate probable P2P operating channel
4080 	 * @priv: Private driver interface data
4081 	 * @freq: Channel frequency in MHz
4082 	 * Returns 0 on success, -1 on failure
4083 	 *
4084 	 * This command can be used to inform the driver of the operating
4085 	 * frequency that an ongoing P2P group formation is likely to come up
4086 	 * on. Local device is assuming P2P Client role.
4087 	 */
4088 	int (*set_prob_oper_freq)(void *priv, unsigned int freq);
4089 
4090 	/**
4091 	 * abort_scan - Request the driver to abort an ongoing scan
4092 	 * @priv: Private driver interface data
4093 	 * @scan_cookie: Cookie identifying the scan request. This is used only
4094 	 *	when the vendor interface QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN
4095 	 *	was used to trigger scan. Otherwise, 0 is used.
4096 	 * Returns 0 on success, -1 on failure
4097 	 */
4098 	int (*abort_scan)(void *priv, u64 scan_cookie);
4099 
4100 	/**
4101 	 * configure_data_frame_filters - Request to configure frame filters
4102 	 * @priv: Private driver interface data
4103 	 * @filter_flags: The type of frames to filter (bitfield of
4104 	 * WPA_DATA_FRAME_FILTER_FLAG_*)
4105 	 * Returns: 0 on success or -1 on failure
4106 	 */
4107 	int (*configure_data_frame_filters)(void *priv, u32 filter_flags);
4108 
4109 	/**
4110 	 * get_ext_capab - Get extended capabilities for the specified interface
4111 	 * @priv: Private driver interface data
4112 	 * @type: Interface type for which to get extended capabilities
4113 	 * @ext_capab: Extended capabilities fetched
4114 	 * @ext_capab_mask: Extended capabilities mask
4115 	 * @ext_capab_len: Length of the extended capabilities
4116 	 * Returns: 0 on success or -1 on failure
4117 	 */
4118 	int (*get_ext_capab)(void *priv, enum wpa_driver_if_type type,
4119 			     const u8 **ext_capab, const u8 **ext_capab_mask,
4120 			     unsigned int *ext_capab_len);
4121 
4122 	/**
4123 	 * p2p_lo_start - Start offloading P2P listen to device
4124 	 * @priv: Private driver interface data
4125 	 * @freq: Listening frequency (MHz) for P2P listen
4126 	 * @period: Length of the listen operation in milliseconds
4127 	 * @interval: Interval for running the listen operation in milliseconds
4128 	 * @count: Number of times to run the listen operation
4129 	 * @device_types: Device primary and secondary types
4130 	 * @dev_types_len: Number of bytes for device_types
4131 	 * @ies: P2P IE and WSC IE for Probe Response frames
4132 	 * @ies_len: Length of ies in bytes
4133 	 * Returns: 0 on success or -1 on failure
4134 	 */
4135 	int (*p2p_lo_start)(void *priv, unsigned int freq,
4136 			    unsigned int period, unsigned int interval,
4137 			    unsigned int count,
4138 			    const u8 *device_types, size_t dev_types_len,
4139 			    const u8 *ies, size_t ies_len);
4140 
4141 	/**
4142 	 * p2p_lo_stop - Stop P2P listen offload
4143 	 * @priv: Private driver interface data
4144 	 * Returns: 0 on success or -1 on failure
4145 	 */
4146 	int (*p2p_lo_stop)(void *priv);
4147 
4148 	/**
4149 	 * set_default_scan_ies - Set default scan IEs
4150 	 * @priv: Private driver interface data
4151 	 * @ies: Scan default IEs buffer
4152 	 * @ies_len: Length of IEs in bytes
4153 	 * Returns: 0 on success or -1 on failure
4154 	 *
4155 	 * The driver can use these by default when there are no scan IEs coming
4156 	 * in the subsequent scan requests. Also in case of one or more of IEs
4157 	 * given in set_default_scan_ies() are missing in the subsequent scan
4158 	 * request, the driver should merge the missing scan IEs in the scan
4159 	 * request from the IEs set by set_default_scan_ies() in the Probe
4160 	 * Request frames sent.
4161 	 */
4162 	int (*set_default_scan_ies)(void *priv, const u8 *ies, size_t ies_len);
4163 
4164 	/**
4165 	 * set_tdls_mode - Set TDLS trigger mode to the host driver
4166 	 * @priv: Private driver interface data
4167 	 * @tdls_external_control: Represents if TDLS external trigger control
4168 	 *  mode is enabled/disabled.
4169 	 *
4170 	 * This optional callback can be used to configure the TDLS external
4171 	 * trigger control mode to the host driver.
4172 	 */
4173 	int (*set_tdls_mode)(void *priv, int tdls_external_control);
4174 
4175 	/**
4176 	 * get_bss_transition_status - Get candidate BSS's transition status
4177 	 * @priv: Private driver interface data
4178 	 * @params: Candidate BSS list
4179 	 *
4180 	 * Get the accept or reject reason code for a list of BSS transition
4181 	 * candidates.
4182 	 */
4183 	struct wpa_bss_candidate_info *
4184 	(*get_bss_transition_status)(void *priv,
4185 				     struct wpa_bss_trans_info *params);
4186 	/**
4187 	 * ignore_assoc_disallow - Configure driver to ignore assoc_disallow
4188 	 * @priv: Private driver interface data
4189 	 * @ignore_disallow: 0 to not ignore, 1 to ignore
4190 	 * Returns: 0 on success, -1 on failure
4191 	 */
4192 	int (*ignore_assoc_disallow)(void *priv, int ignore_disallow);
4193 
4194 	/**
4195 	 * set_bssid_blacklist - Set blacklist of BSSIDs to the driver
4196 	 * @priv: Private driver interface data
4197 	 * @num_bssid: Number of blacklist BSSIDs
4198 	 * @bssids: List of blacklisted BSSIDs
4199 	 */
4200 	int (*set_bssid_blacklist)(void *priv, unsigned int num_bssid,
4201 				   const u8 *bssid);
4202 
4203 	/**
4204 	 * update_connect_params - Update the connection parameters
4205 	 * @priv: Private driver interface data
4206 	 * @params: Association parameters
4207 	 * @mask: Bit mask indicating which parameters in @params have to be
4208 	 *	updated
4209 	 * Returns: 0 on success, -1 on failure
4210 	 *
4211 	 * Update the connection parameters when in connected state so that the
4212 	 * driver uses the updated parameters for subsequent roaming. This is
4213 	 * used only with drivers that implement internal BSS selection and
4214 	 * roaming.
4215 	 */
4216 	int (*update_connect_params)(
4217 		void *priv, struct wpa_driver_associate_params *params,
4218 		enum wpa_drv_update_connect_params_mask mask);
4219 
4220 	/**
4221 	 * send_external_auth_status - Indicate the status of external
4222 	 * authentication processing to the host driver.
4223 	 * @priv: Private driver interface data
4224 	 * @params: Status of authentication processing.
4225 	 * Returns: 0 on success, -1 on failure
4226 	 */
4227 	int (*send_external_auth_status)(void *priv,
4228 					 struct external_auth *params);
4229 
4230 	/**
4231 	 * set_4addr_mode - Set 4-address mode
4232 	 * @priv: Private driver interface data
4233 	 * @bridge_ifname: Bridge interface name
4234 	 * @val: 0 - disable 4addr mode, 1 - enable 4addr mode
4235 	 * Returns: 0 on success, < 0 on failure
4236 	 */
4237 	int (*set_4addr_mode)(void *priv, const char *bridge_ifname, int val);
4238 
4239 	/**
4240 	 * update_dh_ie - Update DH IE
4241 	 * @priv: Private driver interface data
4242 	 * @peer_mac: Peer MAC address
4243 	 * @reason_code: Reacon code
4244 	 * @ie: DH IE
4245 	 * @ie_len: DH IE length in bytes
4246 	 * Returns: 0 on success, -1 on failure
4247 	 *
4248 	 * This callback is used to let the driver know the DH processing result
4249 	 * and DH IE for a pending association.
4250 	 */
4251 	int (*update_dh_ie)(void *priv, const u8 *peer_mac, u16 reason_code,
4252 			    const u8 *ie, size_t ie_len);
4253 };
4254 
4255 /**
4256  * enum wpa_event_type - Event type for wpa_supplicant_event() calls
4257  */
4258 enum wpa_event_type {
4259 	/**
4260 	 * EVENT_ASSOC - Association completed
4261 	 *
4262 	 * This event needs to be delivered when the driver completes IEEE
4263 	 * 802.11 association or reassociation successfully.
4264 	 * wpa_driver_ops::get_bssid() is expected to provide the current BSSID
4265 	 * after this event has been generated. In addition, optional
4266 	 * EVENT_ASSOCINFO may be generated just before EVENT_ASSOC to provide
4267 	 * more information about the association. If the driver interface gets
4268 	 * both of these events at the same time, it can also include the
4269 	 * assoc_info data in EVENT_ASSOC call.
4270 	 */
4271 	EVENT_ASSOC,
4272 
4273 	/**
4274 	 * EVENT_DISASSOC - Association lost
4275 	 *
4276 	 * This event should be called when association is lost either due to
4277 	 * receiving deauthenticate or disassociate frame from the AP or when
4278 	 * sending either of these frames to the current AP. If the driver
4279 	 * supports separate deauthentication event, EVENT_DISASSOC should only
4280 	 * be used for disassociation and EVENT_DEAUTH for deauthentication.
4281 	 * In AP mode, union wpa_event_data::disassoc_info is required.
4282 	 */
4283 	EVENT_DISASSOC,
4284 
4285 	/**
4286 	 * EVENT_MICHAEL_MIC_FAILURE - Michael MIC (TKIP) detected
4287 	 *
4288 	 * This event must be delivered when a Michael MIC error is detected by
4289 	 * the local driver. Additional data for event processing is
4290 	 * provided with union wpa_event_data::michael_mic_failure. This
4291 	 * information is used to request new encyption key and to initiate
4292 	 * TKIP countermeasures if needed.
4293 	 */
4294 	EVENT_MICHAEL_MIC_FAILURE,
4295 
4296 	/**
4297 	 * EVENT_SCAN_RESULTS - Scan results available
4298 	 *
4299 	 * This event must be called whenever scan results are available to be
4300 	 * fetched with struct wpa_driver_ops::get_scan_results(). This event
4301 	 * is expected to be used some time after struct wpa_driver_ops::scan()
4302 	 * is called. If the driver provides an unsolicited event when the scan
4303 	 * has been completed, this event can be used to trigger
4304 	 * EVENT_SCAN_RESULTS call. If such event is not available from the
4305 	 * driver, the driver wrapper code is expected to use a registered
4306 	 * timeout to generate EVENT_SCAN_RESULTS call after the time that the
4307 	 * scan is expected to be completed. Optional information about
4308 	 * completed scan can be provided with union wpa_event_data::scan_info.
4309 	 */
4310 	EVENT_SCAN_RESULTS,
4311 
4312 	/**
4313 	 * EVENT_ASSOCINFO - Report optional extra information for association
4314 	 *
4315 	 * This event can be used to report extra association information for
4316 	 * EVENT_ASSOC processing. This extra information includes IEs from
4317 	 * association frames and Beacon/Probe Response frames in union
4318 	 * wpa_event_data::assoc_info. EVENT_ASSOCINFO must be send just before
4319 	 * EVENT_ASSOC. Alternatively, the driver interface can include
4320 	 * assoc_info data in the EVENT_ASSOC call if it has all the
4321 	 * information available at the same point.
4322 	 */
4323 	EVENT_ASSOCINFO,
4324 
4325 	/**
4326 	 * EVENT_INTERFACE_STATUS - Report interface status changes
4327 	 *
4328 	 * This optional event can be used to report changes in interface
4329 	 * status (interface added/removed) using union
4330 	 * wpa_event_data::interface_status. This can be used to trigger
4331 	 * wpa_supplicant to stop and re-start processing for the interface,
4332 	 * e.g., when a cardbus card is ejected/inserted.
4333 	 */
4334 	EVENT_INTERFACE_STATUS,
4335 
4336 	/**
4337 	 * EVENT_PMKID_CANDIDATE - Report a candidate AP for pre-authentication
4338 	 *
4339 	 * This event can be used to inform wpa_supplicant about candidates for
4340 	 * RSN (WPA2) pre-authentication. If wpa_supplicant is not responsible
4341 	 * for scan request (ap_scan=2 mode), this event is required for
4342 	 * pre-authentication. If wpa_supplicant is performing scan request
4343 	 * (ap_scan=1), this event is optional since scan results can be used
4344 	 * to add pre-authentication candidates. union
4345 	 * wpa_event_data::pmkid_candidate is used to report the BSSID of the
4346 	 * candidate and priority of the candidate, e.g., based on the signal
4347 	 * strength, in order to try to pre-authenticate first with candidates
4348 	 * that are most likely targets for re-association.
4349 	 *
4350 	 * EVENT_PMKID_CANDIDATE can be called whenever the driver has updates
4351 	 * on the candidate list. In addition, it can be called for the current
4352 	 * AP and APs that have existing PMKSA cache entries. wpa_supplicant
4353 	 * will automatically skip pre-authentication in cases where a valid
4354 	 * PMKSA exists. When more than one candidate exists, this event should
4355 	 * be generated once for each candidate.
4356 	 *
4357 	 * Driver will be notified about successful pre-authentication with
4358 	 * struct wpa_driver_ops::add_pmkid() calls.
4359 	 */
4360 	EVENT_PMKID_CANDIDATE,
4361 
4362 	/**
4363 	 * EVENT_TDLS - Request TDLS operation
4364 	 *
4365 	 * This event can be used to request a TDLS operation to be performed.
4366 	 */
4367 	EVENT_TDLS,
4368 
4369 	/**
4370 	 * EVENT_FT_RESPONSE - Report FT (IEEE 802.11r) response IEs
4371 	 *
4372 	 * The driver is expected to report the received FT IEs from
4373 	 * FT authentication sequence from the AP. The FT IEs are included in
4374 	 * the extra information in union wpa_event_data::ft_ies.
4375 	 */
4376 	EVENT_FT_RESPONSE,
4377 
4378 	/**
4379 	 * EVENT_IBSS_RSN_START - Request RSN authentication in IBSS
4380 	 *
4381 	 * The driver can use this event to inform wpa_supplicant about a STA
4382 	 * in an IBSS with which protected frames could be exchanged. This
4383 	 * event starts RSN authentication with the other STA to authenticate
4384 	 * the STA and set up encryption keys with it.
4385 	 */
4386 	EVENT_IBSS_RSN_START,
4387 
4388 	/**
4389 	 * EVENT_AUTH - Authentication result
4390 	 *
4391 	 * This event should be called when authentication attempt has been
4392 	 * completed. This is only used if the driver supports separate
4393 	 * authentication step (struct wpa_driver_ops::authenticate).
4394 	 * Information about authentication result is included in
4395 	 * union wpa_event_data::auth.
4396 	 */
4397 	EVENT_AUTH,
4398 
4399 	/**
4400 	 * EVENT_DEAUTH - Authentication lost
4401 	 *
4402 	 * This event should be called when authentication is lost either due
4403 	 * to receiving deauthenticate frame from the AP or when sending that
4404 	 * frame to the current AP.
4405 	 * In AP mode, union wpa_event_data::deauth_info is required.
4406 	 */
4407 	EVENT_DEAUTH,
4408 
4409 	/**
4410 	 * EVENT_ASSOC_REJECT - Association rejected
4411 	 *
4412 	 * This event should be called when (re)association attempt has been
4413 	 * rejected by the AP. Information about the association response is
4414 	 * included in union wpa_event_data::assoc_reject.
4415 	 */
4416 	EVENT_ASSOC_REJECT,
4417 
4418 	/**
4419 	 * EVENT_AUTH_TIMED_OUT - Authentication timed out
4420 	 */
4421 	EVENT_AUTH_TIMED_OUT,
4422 
4423 	/**
4424 	 * EVENT_ASSOC_TIMED_OUT - Association timed out
4425 	 */
4426 	EVENT_ASSOC_TIMED_OUT,
4427 
4428 	/**
4429 	 * EVENT_WPS_BUTTON_PUSHED - Report hardware push button press for WPS
4430 	 */
4431 	EVENT_WPS_BUTTON_PUSHED,
4432 
4433 	/**
4434 	 * EVENT_TX_STATUS - Report TX status
4435 	 */
4436 	EVENT_TX_STATUS,
4437 
4438 	/**
4439 	 * EVENT_RX_FROM_UNKNOWN - Report RX from unknown STA
4440 	 */
4441 	EVENT_RX_FROM_UNKNOWN,
4442 
4443 	/**
4444 	 * EVENT_RX_MGMT - Report RX of a management frame
4445 	 */
4446 	EVENT_RX_MGMT,
4447 
4448 	/**
4449 	 * EVENT_REMAIN_ON_CHANNEL - Remain-on-channel duration started
4450 	 *
4451 	 * This event is used to indicate when the driver has started the
4452 	 * requested remain-on-channel duration. Information about the
4453 	 * operation is included in union wpa_event_data::remain_on_channel.
4454 	 */
4455 	EVENT_REMAIN_ON_CHANNEL,
4456 
4457 	/**
4458 	 * EVENT_CANCEL_REMAIN_ON_CHANNEL - Remain-on-channel timed out
4459 	 *
4460 	 * This event is used to indicate when the driver has completed
4461 	 * remain-on-channel duration, i.e., may noot be available on the
4462 	 * requested channel anymore. Information about the
4463 	 * operation is included in union wpa_event_data::remain_on_channel.
4464 	 */
4465 	EVENT_CANCEL_REMAIN_ON_CHANNEL,
4466 
4467 	/**
4468 	 * EVENT_RX_PROBE_REQ - Indicate received Probe Request frame
4469 	 *
4470 	 * This event is used to indicate when a Probe Request frame has been
4471 	 * received. Information about the received frame is included in
4472 	 * union wpa_event_data::rx_probe_req. The driver is required to report
4473 	 * these events only after successfully completed probe_req_report()
4474 	 * commands to request the events (i.e., report parameter is non-zero)
4475 	 * in station mode. In AP mode, Probe Request frames should always be
4476 	 * reported.
4477 	 */
4478 	EVENT_RX_PROBE_REQ,
4479 
4480 	/**
4481 	 * EVENT_NEW_STA - New wired device noticed
4482 	 *
4483 	 * This event is used to indicate that a new device has been detected
4484 	 * in a network that does not use association-like functionality (i.e.,
4485 	 * mainly wired Ethernet). This can be used to start EAPOL
4486 	 * authenticator when receiving a frame from a device. The address of
4487 	 * the device is included in union wpa_event_data::new_sta.
4488 	 */
4489 	EVENT_NEW_STA,
4490 
4491 	/**
4492 	 * EVENT_EAPOL_RX - Report received EAPOL frame
4493 	 *
4494 	 * When in AP mode with hostapd, this event is required to be used to
4495 	 * deliver the receive EAPOL frames from the driver.
4496 	 */
4497 	EVENT_EAPOL_RX,
4498 
4499 	/**
4500 	 * EVENT_SIGNAL_CHANGE - Indicate change in signal strength
4501 	 *
4502 	 * This event is used to indicate changes in the signal strength
4503 	 * observed in frames received from the current AP if signal strength
4504 	 * monitoring has been enabled with signal_monitor().
4505 	 */
4506 	EVENT_SIGNAL_CHANGE,
4507 
4508 	/**
4509 	 * EVENT_INTERFACE_ENABLED - Notify that interface was enabled
4510 	 *
4511 	 * This event is used to indicate that the interface was enabled after
4512 	 * having been previously disabled, e.g., due to rfkill.
4513 	 */
4514 	EVENT_INTERFACE_ENABLED,
4515 
4516 	/**
4517 	 * EVENT_INTERFACE_DISABLED - Notify that interface was disabled
4518 	 *
4519 	 * This event is used to indicate that the interface was disabled,
4520 	 * e.g., due to rfkill.
4521 	 */
4522 	EVENT_INTERFACE_DISABLED,
4523 
4524 	/**
4525 	 * EVENT_CHANNEL_LIST_CHANGED - Channel list changed
4526 	 *
4527 	 * This event is used to indicate that the channel list has changed,
4528 	 * e.g., because of a regulatory domain change triggered by scan
4529 	 * results including an AP advertising a country code.
4530 	 */
4531 	EVENT_CHANNEL_LIST_CHANGED,
4532 
4533 	/**
4534 	 * EVENT_INTERFACE_UNAVAILABLE - Notify that interface is unavailable
4535 	 *
4536 	 * This event is used to indicate that the driver cannot maintain this
4537 	 * interface in its operation mode anymore. The most likely use for
4538 	 * this is to indicate that AP mode operation is not available due to
4539 	 * operating channel would need to be changed to a DFS channel when
4540 	 * the driver does not support radar detection and another virtual
4541 	 * interfaces caused the operating channel to change. Other similar
4542 	 * resource conflicts could also trigger this for station mode
4543 	 * interfaces. This event can be propagated when channel switching
4544 	 * fails.
4545 	 */
4546 	EVENT_INTERFACE_UNAVAILABLE,
4547 
4548 	/**
4549 	 * EVENT_BEST_CHANNEL
4550 	 *
4551 	 * Driver generates this event whenever it detects a better channel
4552 	 * (e.g., based on RSSI or channel use). This information can be used
4553 	 * to improve channel selection for a new AP/P2P group.
4554 	 */
4555 	EVENT_BEST_CHANNEL,
4556 
4557 	/**
4558 	 * EVENT_UNPROT_DEAUTH - Unprotected Deauthentication frame received
4559 	 *
4560 	 * This event should be called when a Deauthentication frame is dropped
4561 	 * due to it not being protected (MFP/IEEE 802.11w).
4562 	 * union wpa_event_data::unprot_deauth is required to provide more
4563 	 * details of the frame.
4564 	 */
4565 	EVENT_UNPROT_DEAUTH,
4566 
4567 	/**
4568 	 * EVENT_UNPROT_DISASSOC - Unprotected Disassociation frame received
4569 	 *
4570 	 * This event should be called when a Disassociation frame is dropped
4571 	 * due to it not being protected (MFP/IEEE 802.11w).
4572 	 * union wpa_event_data::unprot_disassoc is required to provide more
4573 	 * details of the frame.
4574 	 */
4575 	EVENT_UNPROT_DISASSOC,
4576 
4577 	/**
4578 	 * EVENT_STATION_LOW_ACK
4579 	 *
4580 	 * Driver generates this event whenever it detected that a particular
4581 	 * station was lost. Detection can be through massive transmission
4582 	 * failures for example.
4583 	 */
4584 	EVENT_STATION_LOW_ACK,
4585 
4586 	/**
4587 	 * EVENT_IBSS_PEER_LOST - IBSS peer not reachable anymore
4588 	 */
4589 	EVENT_IBSS_PEER_LOST,
4590 
4591 	/**
4592 	 * EVENT_DRIVER_GTK_REKEY - Device/driver did GTK rekey
4593 	 *
4594 	 * This event carries the new replay counter to notify wpa_supplicant
4595 	 * of the current EAPOL-Key Replay Counter in case the driver/firmware
4596 	 * completed Group Key Handshake while the host (including
4597 	 * wpa_supplicant was sleeping).
4598 	 */
4599 	EVENT_DRIVER_GTK_REKEY,
4600 
4601 	/**
4602 	 * EVENT_SCHED_SCAN_STOPPED - Scheduled scan was stopped
4603 	 */
4604 	EVENT_SCHED_SCAN_STOPPED,
4605 
4606 	/**
4607 	 * EVENT_DRIVER_CLIENT_POLL_OK - Station responded to poll
4608 	 *
4609 	 * This event indicates that the station responded to the poll
4610 	 * initiated with @poll_client.
4611 	 */
4612 	EVENT_DRIVER_CLIENT_POLL_OK,
4613 
4614 	/**
4615 	 * EVENT_EAPOL_TX_STATUS - notify of EAPOL TX status
4616 	 */
4617 	EVENT_EAPOL_TX_STATUS,
4618 
4619 	/**
4620 	 * EVENT_CH_SWITCH - AP or GO decided to switch channels
4621 	 *
4622 	 * Described in wpa_event_data.ch_switch
4623 	 * */
4624 	EVENT_CH_SWITCH,
4625 
4626 	/**
4627 	 * EVENT_CH_SWITCH_STARTED - AP or GO started to switch channels
4628 	 *
4629 	 * This is a pre-switch event indicating the shortly following switch
4630 	 * of operating channels.
4631 	 *
4632 	 * Described in wpa_event_data.ch_switch
4633 	 */
4634 	EVENT_CH_SWITCH_STARTED,
4635 	/**
4636 	 * EVENT_WNM - Request WNM operation
4637 	 *
4638 	 * This event can be used to request a WNM operation to be performed.
4639 	 */
4640 	EVENT_WNM,
4641 
4642 	/**
4643 	 * EVENT_CONNECT_FAILED_REASON - Connection failure reason in AP mode
4644 	 *
4645 	 * This event indicates that the driver reported a connection failure
4646 	 * with the specified client (for example, max client reached, etc.) in
4647 	 * AP mode.
4648 	 */
4649 	EVENT_CONNECT_FAILED_REASON,
4650 
4651 	/**
4652 	 * EVENT_DFS_RADAR_DETECTED - Notify of radar detection
4653 	 *
4654 	 * A radar has been detected on the supplied frequency, hostapd should
4655 	 * react accordingly (e.g., change channel).
4656 	 */
4657 	EVENT_DFS_RADAR_DETECTED,
4658 
4659 	/**
4660 	 * EVENT_DFS_CAC_FINISHED - Notify that channel availability check has been completed
4661 	 *
4662 	 * After a successful CAC, the channel can be marked clear and used.
4663 	 */
4664 	EVENT_DFS_CAC_FINISHED,
4665 
4666 	/**
4667 	 * EVENT_DFS_CAC_ABORTED - Notify that channel availability check has been aborted
4668 	 *
4669 	 * The CAC was not successful, and the channel remains in the previous
4670 	 * state. This may happen due to a radar being detected or other
4671 	 * external influences.
4672 	 */
4673 	EVENT_DFS_CAC_ABORTED,
4674 
4675 	/**
4676 	 * EVENT_DFS_NOP_FINISHED - Notify that non-occupancy period is over
4677 	 *
4678 	 * The channel which was previously unavailable is now available again.
4679 	 */
4680 	EVENT_DFS_NOP_FINISHED,
4681 
4682 	/**
4683 	 * EVENT_SURVEY - Received survey data
4684 	 *
4685 	 * This event gets triggered when a driver query is issued for survey
4686 	 * data and the requested data becomes available. The returned data is
4687 	 * stored in struct survey_results. The results provide at most one
4688 	 * survey entry for each frequency and at minimum will provide one
4689 	 * survey entry for one frequency. The survey data can be os_malloc()'d
4690 	 * and then os_free()'d, so the event callback must only copy data.
4691 	 */
4692 	EVENT_SURVEY,
4693 
4694 	/**
4695 	 * EVENT_SCAN_STARTED - Scan started
4696 	 *
4697 	 * This indicates that driver has started a scan operation either based
4698 	 * on a request from wpa_supplicant/hostapd or from another application.
4699 	 * EVENT_SCAN_RESULTS is used to indicate when the scan has been
4700 	 * completed (either successfully or by getting cancelled).
4701 	 */
4702 	EVENT_SCAN_STARTED,
4703 
4704 	/**
4705 	 * EVENT_AVOID_FREQUENCIES - Received avoid frequency range
4706 	 *
4707 	 * This event indicates a set of frequency ranges that should be avoided
4708 	 * to reduce issues due to interference or internal co-existence
4709 	 * information in the driver.
4710 	 */
4711 	EVENT_AVOID_FREQUENCIES,
4712 
4713 	/**
4714 	 * EVENT_NEW_PEER_CANDIDATE - new (unknown) mesh peer notification
4715 	 */
4716 	EVENT_NEW_PEER_CANDIDATE,
4717 
4718 	/**
4719 	 * EVENT_ACS_CHANNEL_SELECTED - Received selected channels by ACS
4720 	 *
4721 	 * Indicates a pair of primary and secondary channels chosen by ACS
4722 	 * in device.
4723 	 */
4724 	EVENT_ACS_CHANNEL_SELECTED,
4725 
4726 	/**
4727 	 * EVENT_DFS_CAC_STARTED - Notify that channel availability check has
4728 	 * been started.
4729 	 *
4730 	 * This event indicates that channel availability check has been started
4731 	 * on a DFS frequency by a driver that supports DFS Offload.
4732 	 */
4733 	EVENT_DFS_CAC_STARTED,
4734 
4735 	/**
4736 	 * EVENT_P2P_LO_STOP - Notify that P2P listen offload is stopped
4737 	 */
4738 	EVENT_P2P_LO_STOP,
4739 
4740 	/**
4741 	 * EVENT_BEACON_LOSS - Beacon loss detected
4742 	 *
4743 	 * This event indicates that no Beacon frames has been received from
4744 	 * the current AP. This may indicate that the AP is not anymore in
4745 	 * range.
4746 	 */
4747 	EVENT_BEACON_LOSS,
4748 
4749 	/**
4750 	 * EVENT_DFS_PRE_CAC_EXPIRED - Notify that channel availability check
4751 	 * done previously (Pre-CAC) on the channel has expired. This would
4752 	 * normally be on a non-ETSI DFS regulatory domain. DFS state of the
4753 	 * channel will be moved from available to usable. A new CAC has to be
4754 	 * performed before start operating on this channel.
4755 	 */
4756 	EVENT_DFS_PRE_CAC_EXPIRED,
4757 
4758 	/**
4759 	 * EVENT_EXTERNAL_AUTH - This event interface is used by host drivers
4760 	 * that do not define separate commands for authentication and
4761 	 * association (~WPA_DRIVER_FLAGS_SME) but offload the 802.11
4762 	 * authentication to wpa_supplicant. This event carries all the
4763 	 * necessary information from the host driver for the authentication to
4764 	 * happen.
4765 	 */
4766 	EVENT_EXTERNAL_AUTH,
4767 
4768 	/**
4769 	 * EVENT_PORT_AUTHORIZED - Notification that a connection is authorized
4770 	 *
4771 	 * This event should be indicated when the driver completes the 4-way
4772 	 * handshake. This event should be preceded by an EVENT_ASSOC that
4773 	 * indicates the completion of IEEE 802.11 association.
4774 	 */
4775 	EVENT_PORT_AUTHORIZED,
4776 
4777 	/**
4778 	 * EVENT_STATION_OPMODE_CHANGED - Notify STA's HT/VHT operation mode
4779 	 * change event.
4780 	 */
4781 	EVENT_STATION_OPMODE_CHANGED,
4782 
4783 	/**
4784 	 * EVENT_INTERFACE_MAC_CHANGED - Notify that interface MAC changed
4785 	 *
4786 	 * This event is emitted when the MAC changes while the interface is
4787 	 * enabled. When an interface was disabled and becomes enabled, it
4788 	 * must be always assumed that the MAC possibly changed.
4789 	 */
4790 	EVENT_INTERFACE_MAC_CHANGED,
4791 
4792 	/**
4793 	 * EVENT_WDS_STA_INTERFACE_STATUS - Notify WDS STA interface status
4794 	 *
4795 	 * This event is emitted when an interface is added/removed for WDS STA.
4796 	 */
4797 	EVENT_WDS_STA_INTERFACE_STATUS,
4798 
4799 	/**
4800 	  * EVENT_UPDATE_DH - Notification of updated DH information
4801 	  */
4802 	EVENT_UPDATE_DH,
4803 };
4804 
4805 
4806 /**
4807  * struct freq_survey - Channel survey info
4808  *
4809  * @ifidx: Interface index in which this survey was observed
4810  * @freq: Center of frequency of the surveyed channel
4811  * @nf: Channel noise floor in dBm
4812  * @channel_time: Amount of time in ms the radio spent on the channel
4813  * @channel_time_busy: Amount of time in ms the radio detected some signal
4814  *     that indicated to the radio the channel was not clear
4815  * @channel_time_rx: Amount of time the radio spent receiving data
4816  * @channel_time_tx: Amount of time the radio spent transmitting data
4817  * @filled: bitmask indicating which fields have been reported, see
4818  *     SURVEY_HAS_* defines.
4819  * @list: Internal list pointers
4820  */
4821 struct freq_survey {
4822 	u32 ifidx;
4823 	unsigned int freq;
4824 	s8 nf;
4825 	u64 channel_time;
4826 	u64 channel_time_busy;
4827 	u64 channel_time_rx;
4828 	u64 channel_time_tx;
4829 	unsigned int filled;
4830 	struct dl_list list;
4831 };
4832 
4833 #define SURVEY_HAS_NF BIT(0)
4834 #define SURVEY_HAS_CHAN_TIME BIT(1)
4835 #define SURVEY_HAS_CHAN_TIME_BUSY BIT(2)
4836 #define SURVEY_HAS_CHAN_TIME_RX BIT(3)
4837 #define SURVEY_HAS_CHAN_TIME_TX BIT(4)
4838 
4839 
4840 /**
4841  * union wpa_event_data - Additional data for wpa_supplicant_event() calls
4842  */
4843 union wpa_event_data {
4844 	/**
4845 	 * struct assoc_info - Data for EVENT_ASSOC and EVENT_ASSOCINFO events
4846 	 *
4847 	 * This structure is optional for EVENT_ASSOC calls and required for
4848 	 * EVENT_ASSOCINFO calls. By using EVENT_ASSOC with this data, the
4849 	 * driver interface does not need to generate separate EVENT_ASSOCINFO
4850 	 * calls.
4851 	 */
4852 	struct assoc_info {
4853 		/**
4854 		 * reassoc - Flag to indicate association or reassociation
4855 		 */
4856 		int reassoc;
4857 
4858 		/**
4859 		 * req_ies - (Re)Association Request IEs
4860 		 *
4861 		 * If the driver generates WPA/RSN IE, this event data must be
4862 		 * returned for WPA handshake to have needed information. If
4863 		 * wpa_supplicant-generated WPA/RSN IE is used, this
4864 		 * information event is optional.
4865 		 *
4866 		 * This should start with the first IE (fixed fields before IEs
4867 		 * are not included).
4868 		 */
4869 		const u8 *req_ies;
4870 
4871 		/**
4872 		 * req_ies_len - Length of req_ies in bytes
4873 		 */
4874 		size_t req_ies_len;
4875 
4876 		/**
4877 		 * resp_ies - (Re)Association Response IEs
4878 		 *
4879 		 * Optional association data from the driver. This data is not
4880 		 * required WPA, but may be useful for some protocols and as
4881 		 * such, should be reported if this is available to the driver
4882 		 * interface.
4883 		 *
4884 		 * This should start with the first IE (fixed fields before IEs
4885 		 * are not included).
4886 		 */
4887 		const u8 *resp_ies;
4888 
4889 		/**
4890 		 * resp_ies_len - Length of resp_ies in bytes
4891 		 */
4892 		size_t resp_ies_len;
4893 
4894 		/**
4895 		 * resp_frame - (Re)Association Response frame
4896 		 */
4897 		const u8 *resp_frame;
4898 
4899 		/**
4900 		 * resp_frame_len - (Re)Association Response frame length
4901 		 */
4902 		size_t resp_frame_len;
4903 
4904 		/**
4905 		 * beacon_ies - Beacon or Probe Response IEs
4906 		 *
4907 		 * Optional Beacon/ProbeResp data: IEs included in Beacon or
4908 		 * Probe Response frames from the current AP (i.e., the one
4909 		 * that the client just associated with). This information is
4910 		 * used to update WPA/RSN IE for the AP. If this field is not
4911 		 * set, the results from previous scan will be used. If no
4912 		 * data for the new AP is found, scan results will be requested
4913 		 * again (without scan request). At this point, the driver is
4914 		 * expected to provide WPA/RSN IE for the AP (if WPA/WPA2 is
4915 		 * used).
4916 		 *
4917 		 * This should start with the first IE (fixed fields before IEs
4918 		 * are not included).
4919 		 */
4920 		const u8 *beacon_ies;
4921 
4922 		/**
4923 		 * beacon_ies_len - Length of beacon_ies */
4924 		size_t beacon_ies_len;
4925 
4926 		/**
4927 		 * freq - Frequency of the operational channel in MHz
4928 		 */
4929 		unsigned int freq;
4930 
4931 		/**
4932 		 * wmm_params - WMM parameters used in this association.
4933 		 */
4934 		struct wmm_params wmm_params;
4935 
4936 		/**
4937 		 * addr - Station address (for AP mode)
4938 		 */
4939 		const u8 *addr;
4940 
4941 		/**
4942 		 * The following is the key management offload information
4943 		 * @authorized
4944 		 * @key_replay_ctr
4945 		 * @key_replay_ctr_len
4946 		 * @ptk_kck
4947 		 * @ptk_kek_len
4948 		 * @ptk_kek
4949 		 * @ptk_kek_len
4950 		 */
4951 
4952 		/**
4953 		 * authorized - Status of key management offload,
4954 		 * 1 = successful
4955 		 */
4956 		int authorized;
4957 
4958 		/**
4959 		 * key_replay_ctr - Key replay counter value last used
4960 		 * in a valid EAPOL-Key frame
4961 		 */
4962 		const u8 *key_replay_ctr;
4963 
4964 		/**
4965 		 * key_replay_ctr_len - The length of key_replay_ctr
4966 		 */
4967 		size_t key_replay_ctr_len;
4968 
4969 		/**
4970 		 * ptk_kck - The derived PTK KCK
4971 		 */
4972 		const u8 *ptk_kck;
4973 
4974 		/**
4975 		 * ptk_kek_len - The length of ptk_kck
4976 		 */
4977 		size_t ptk_kck_len;
4978 
4979 		/**
4980 		 * ptk_kek - The derived PTK KEK
4981 		 * This is used in key management offload and also in FILS SK
4982 		 * offload.
4983 		 */
4984 		const u8 *ptk_kek;
4985 
4986 		/**
4987 		 * ptk_kek_len - The length of ptk_kek
4988 		 */
4989 		size_t ptk_kek_len;
4990 
4991 		/**
4992 		 * subnet_status - The subnet status:
4993 		 * 0 = unknown, 1 = unchanged, 2 = changed
4994 		 */
4995 		u8 subnet_status;
4996 
4997 		/**
4998 		 * The following information is used in FILS SK offload
4999 		 * @fils_erp_next_seq_num
5000 		 * @fils_pmk
5001 		 * @fils_pmk_len
5002 		 * @fils_pmkid
5003 		 */
5004 
5005 		/**
5006 		 * fils_erp_next_seq_num - The next sequence number to use in
5007 		 * FILS ERP messages
5008 		 */
5009 		u16 fils_erp_next_seq_num;
5010 
5011 		/**
5012 		 * fils_pmk - A new PMK if generated in case of FILS
5013 		 * authentication
5014 		 */
5015 		const u8 *fils_pmk;
5016 
5017 		/**
5018 		 * fils_pmk_len - Length of fils_pmk
5019 		 */
5020 		size_t fils_pmk_len;
5021 
5022 		/**
5023 		 * fils_pmkid - PMKID used or generated in FILS authentication
5024 		 */
5025 		const u8 *fils_pmkid;
5026 	} assoc_info;
5027 
5028 	/**
5029 	 * struct disassoc_info - Data for EVENT_DISASSOC events
5030 	 */
5031 	struct disassoc_info {
5032 		/**
5033 		 * addr - Station address (for AP mode)
5034 		 */
5035 		const u8 *addr;
5036 
5037 		/**
5038 		 * reason_code - Reason Code (host byte order) used in
5039 		 *	Deauthentication frame
5040 		 */
5041 		u16 reason_code;
5042 
5043 		/**
5044 		 * ie - Optional IE(s) in Disassociation frame
5045 		 */
5046 		const u8 *ie;
5047 
5048 		/**
5049 		 * ie_len - Length of ie buffer in octets
5050 		 */
5051 		size_t ie_len;
5052 
5053 		/**
5054 		 * locally_generated - Whether the frame was locally generated
5055 		 */
5056 		int locally_generated;
5057 	} disassoc_info;
5058 
5059 	/**
5060 	 * struct deauth_info - Data for EVENT_DEAUTH events
5061 	 */
5062 	struct deauth_info {
5063 		/**
5064 		 * addr - Station address (for AP mode)
5065 		 */
5066 		const u8 *addr;
5067 
5068 		/**
5069 		 * reason_code - Reason Code (host byte order) used in
5070 		 *	Deauthentication frame
5071 		 */
5072 		u16 reason_code;
5073 
5074 		/**
5075 		 * ie - Optional IE(s) in Deauthentication frame
5076 		 */
5077 		const u8 *ie;
5078 
5079 		/**
5080 		 * ie_len - Length of ie buffer in octets
5081 		 */
5082 		size_t ie_len;
5083 
5084 		/**
5085 		 * locally_generated - Whether the frame was locally generated
5086 		 */
5087 		int locally_generated;
5088 	} deauth_info;
5089 
5090 	/**
5091 	 * struct michael_mic_failure - Data for EVENT_MICHAEL_MIC_FAILURE
5092 	 */
5093 	struct michael_mic_failure {
5094 		int unicast;
5095 		const u8 *src;
5096 	} michael_mic_failure;
5097 
5098 	/**
5099 	 * struct interface_status - Data for EVENT_INTERFACE_STATUS
5100 	 */
5101 	struct interface_status {
5102 		unsigned int ifindex;
5103 		char ifname[100];
5104 		enum {
5105 			EVENT_INTERFACE_ADDED, EVENT_INTERFACE_REMOVED
5106 		} ievent;
5107 	} interface_status;
5108 
5109 	/**
5110 	 * struct pmkid_candidate - Data for EVENT_PMKID_CANDIDATE
5111 	 */
5112 	struct pmkid_candidate {
5113 		/** BSSID of the PMKID candidate */
5114 		u8 bssid[ETH_ALEN];
5115 		/** Smaller the index, higher the priority */
5116 		int index;
5117 		/** Whether RSN IE includes pre-authenticate flag */
5118 		int preauth;
5119 	} pmkid_candidate;
5120 
5121 	/**
5122 	 * struct tdls - Data for EVENT_TDLS
5123 	 */
5124 	struct tdls {
5125 		u8 peer[ETH_ALEN];
5126 		enum {
5127 			TDLS_REQUEST_SETUP,
5128 			TDLS_REQUEST_TEARDOWN,
5129 			TDLS_REQUEST_DISCOVER,
5130 		} oper;
5131 		u16 reason_code; /* for teardown */
5132 	} tdls;
5133 
5134 	/**
5135 	 * struct wnm - Data for EVENT_WNM
5136 	 */
5137 	struct wnm {
5138 		u8 addr[ETH_ALEN];
5139 		enum {
5140 			WNM_OPER_SLEEP,
5141 		} oper;
5142 		enum {
5143 			WNM_SLEEP_ENTER,
5144 			WNM_SLEEP_EXIT
5145 		} sleep_action;
5146 		int sleep_intval;
5147 		u16 reason_code;
5148 		u8 *buf;
5149 		u16 buf_len;
5150 	} wnm;
5151 
5152 	/**
5153 	 * struct ft_ies - FT information elements (EVENT_FT_RESPONSE)
5154 	 *
5155 	 * During FT (IEEE 802.11r) authentication sequence, the driver is
5156 	 * expected to use this event to report received FT IEs (MDIE, FTIE,
5157 	 * RSN IE, TIE, possible resource request) to the supplicant. The FT
5158 	 * IEs for the next message will be delivered through the
5159 	 * struct wpa_driver_ops::update_ft_ies() callback.
5160 	 */
5161 	struct ft_ies {
5162 		const u8 *ies;
5163 		size_t ies_len;
5164 		int ft_action;
5165 		u8 target_ap[ETH_ALEN];
5166 		/** Optional IE(s), e.g., WMM TSPEC(s), for RIC-Request */
5167 		const u8 *ric_ies;
5168 		/** Length of ric_ies buffer in octets */
5169 		size_t ric_ies_len;
5170 	} ft_ies;
5171 
5172 	/**
5173 	 * struct ibss_rsn_start - Data for EVENT_IBSS_RSN_START
5174 	 */
5175 	struct ibss_rsn_start {
5176 		u8 peer[ETH_ALEN];
5177 	} ibss_rsn_start;
5178 
5179 	/**
5180 	 * struct auth_info - Data for EVENT_AUTH events
5181 	 */
5182 	struct auth_info {
5183 		u8 peer[ETH_ALEN];
5184 		u8 bssid[ETH_ALEN];
5185 		u16 auth_type;
5186 		u16 auth_transaction;
5187 		u16 status_code;
5188 		const u8 *ies;
5189 		size_t ies_len;
5190 	} auth;
5191 
5192 	/**
5193 	 * struct assoc_reject - Data for EVENT_ASSOC_REJECT events
5194 	 */
5195 	struct assoc_reject {
5196 		/**
5197 		 * bssid - BSSID of the AP that rejected association
5198 		 */
5199 		const u8 *bssid;
5200 
5201 		/**
5202 		 * resp_ies - (Re)Association Response IEs
5203 		 *
5204 		 * Optional association data from the driver. This data is not
5205 		 * required WPA, but may be useful for some protocols and as
5206 		 * such, should be reported if this is available to the driver
5207 		 * interface.
5208 		 *
5209 		 * This should start with the first IE (fixed fields before IEs
5210 		 * are not included).
5211 		 */
5212 		const u8 *resp_ies;
5213 
5214 		/**
5215 		 * resp_ies_len - Length of resp_ies in bytes
5216 		 */
5217 		size_t resp_ies_len;
5218 
5219 		/**
5220 		 * status_code - Status Code from (Re)association Response
5221 		 */
5222 		u16 status_code;
5223 
5224 		/**
5225 		 * timed_out - Whether failure is due to timeout (etc.) rather
5226 		 * than explicit rejection response from the AP.
5227 		 */
5228 		int timed_out;
5229 
5230 		/**
5231 		 * timeout_reason - Reason for the timeout
5232 		 */
5233 		const char *timeout_reason;
5234 
5235 		/**
5236 		 * fils_erp_next_seq_num - The next sequence number to use in
5237 		 * FILS ERP messages
5238 		 */
5239 		u16 fils_erp_next_seq_num;
5240 	} assoc_reject;
5241 
5242 	struct timeout_event {
5243 		u8 addr[ETH_ALEN];
5244 	} timeout_event;
5245 
5246 	/**
5247 	 * struct tx_status - Data for EVENT_TX_STATUS events
5248 	 */
5249 	struct tx_status {
5250 		u16 type;
5251 		u16 stype;
5252 		const u8 *dst;
5253 		const u8 *data;
5254 		size_t data_len;
5255 		int ack;
5256 	} tx_status;
5257 
5258 	/**
5259 	 * struct rx_from_unknown - Data for EVENT_RX_FROM_UNKNOWN events
5260 	 */
5261 	struct rx_from_unknown {
5262 		const u8 *bssid;
5263 		const u8 *addr;
5264 		int wds;
5265 	} rx_from_unknown;
5266 
5267 	/**
5268 	 * struct rx_mgmt - Data for EVENT_RX_MGMT events
5269 	 */
5270 	struct rx_mgmt {
5271 		const u8 *frame;
5272 		size_t frame_len;
5273 		u32 datarate;
5274 
5275 		/**
5276 		 * drv_priv - Pointer to store driver private BSS information
5277 		 *
5278 		 * If not set to NULL, this is used for comparison with
5279 		 * hostapd_data->drv_priv to determine which BSS should process
5280 		 * the frame.
5281 		 */
5282 		void *drv_priv;
5283 
5284 		/**
5285 		 * freq - Frequency (in MHz) on which the frame was received
5286 		 */
5287 		int freq;
5288 
5289 		/**
5290 		 * ssi_signal - Signal strength in dBm (or 0 if not available)
5291 		 */
5292 		int ssi_signal;
5293 	} rx_mgmt;
5294 
5295 	/**
5296 	 * struct remain_on_channel - Data for EVENT_REMAIN_ON_CHANNEL events
5297 	 *
5298 	 * This is also used with EVENT_CANCEL_REMAIN_ON_CHANNEL events.
5299 	 */
5300 	struct remain_on_channel {
5301 		/**
5302 		 * freq - Channel frequency in MHz
5303 		 */
5304 		unsigned int freq;
5305 
5306 		/**
5307 		 * duration - Duration to remain on the channel in milliseconds
5308 		 */
5309 		unsigned int duration;
5310 	} remain_on_channel;
5311 
5312 	/**
5313 	 * struct scan_info - Optional data for EVENT_SCAN_RESULTS events
5314 	 * @aborted: Whether the scan was aborted
5315 	 * @freqs: Scanned frequencies in MHz (%NULL = all channels scanned)
5316 	 * @num_freqs: Number of entries in freqs array
5317 	 * @ssids: Scanned SSIDs (%NULL or zero-length SSID indicates wildcard
5318 	 *	SSID)
5319 	 * @num_ssids: Number of entries in ssids array
5320 	 * @external_scan: Whether the scan info is for an external scan
5321 	 * @nl_scan_event: 1 if the source of this scan event is a normal scan,
5322 	 * 	0 if the source of the scan event is a vendor scan
5323 	 * @scan_start_tsf: Time when the scan started in terms of TSF of the
5324 	 *	BSS that the interface that requested the scan is connected to
5325 	 *	(if available).
5326 	 * @scan_start_tsf_bssid: The BSSID according to which %scan_start_tsf
5327 	 *	is set.
5328 	 */
5329 	struct scan_info {
5330 		int aborted;
5331 		const int *freqs;
5332 		size_t num_freqs;
5333 		struct wpa_driver_scan_ssid ssids[WPAS_MAX_SCAN_SSIDS];
5334 		size_t num_ssids;
5335 		int external_scan;
5336 		int nl_scan_event;
5337 		u64 scan_start_tsf;
5338 		u8 scan_start_tsf_bssid[ETH_ALEN];
5339 	} scan_info;
5340 
5341 	/**
5342 	 * struct rx_probe_req - Data for EVENT_RX_PROBE_REQ events
5343 	 */
5344 	struct rx_probe_req {
5345 		/**
5346 		 * sa - Source address of the received Probe Request frame
5347 		 */
5348 		const u8 *sa;
5349 
5350 		/**
5351 		 * da - Destination address of the received Probe Request frame
5352 		 *	or %NULL if not available
5353 		 */
5354 		const u8 *da;
5355 
5356 		/**
5357 		 * bssid - BSSID of the received Probe Request frame or %NULL
5358 		 *	if not available
5359 		 */
5360 		const u8 *bssid;
5361 
5362 		/**
5363 		 * ie - IEs from the Probe Request body
5364 		 */
5365 		const u8 *ie;
5366 
5367 		/**
5368 		 * ie_len - Length of ie buffer in octets
5369 		 */
5370 		size_t ie_len;
5371 
5372 		/**
5373 		 * signal - signal strength in dBm (or 0 if not available)
5374 		 */
5375 		int ssi_signal;
5376 	} rx_probe_req;
5377 
5378 	/**
5379 	 * struct new_sta - Data for EVENT_NEW_STA events
5380 	 */
5381 	struct new_sta {
5382 		const u8 *addr;
5383 	} new_sta;
5384 
5385 	/**
5386 	 * struct eapol_rx - Data for EVENT_EAPOL_RX events
5387 	 */
5388 	struct eapol_rx {
5389 		const u8 *src;
5390 		const u8 *data;
5391 		size_t data_len;
5392 	} eapol_rx;
5393 
5394 	/**
5395 	 * signal_change - Data for EVENT_SIGNAL_CHANGE events
5396 	 */
5397 	struct wpa_signal_info signal_change;
5398 
5399 	/**
5400 	 * struct best_channel - Data for EVENT_BEST_CHANNEL events
5401 	 * @freq_24: Best 2.4 GHz band channel frequency in MHz
5402 	 * @freq_5: Best 5 GHz band channel frequency in MHz
5403 	 * @freq_overall: Best channel frequency in MHz
5404 	 *
5405 	 * 0 can be used to indicate no preference in either band.
5406 	 */
5407 	struct best_channel {
5408 		int freq_24;
5409 		int freq_5;
5410 		int freq_overall;
5411 	} best_chan;
5412 
5413 	struct unprot_deauth {
5414 		const u8 *sa;
5415 		const u8 *da;
5416 		u16 reason_code;
5417 	} unprot_deauth;
5418 
5419 	struct unprot_disassoc {
5420 		const u8 *sa;
5421 		const u8 *da;
5422 		u16 reason_code;
5423 	} unprot_disassoc;
5424 
5425 	/**
5426 	 * struct low_ack - Data for EVENT_STATION_LOW_ACK events
5427 	 * @addr: station address
5428 	 * @num_packets: Number of packets lost (consecutive packets not
5429 	 * acknowledged)
5430 	 */
5431 	struct low_ack {
5432 		u8 addr[ETH_ALEN];
5433 		u32 num_packets;
5434 	} low_ack;
5435 
5436 	/**
5437 	 * struct ibss_peer_lost - Data for EVENT_IBSS_PEER_LOST
5438 	 */
5439 	struct ibss_peer_lost {
5440 		u8 peer[ETH_ALEN];
5441 	} ibss_peer_lost;
5442 
5443 	/**
5444 	 * struct driver_gtk_rekey - Data for EVENT_DRIVER_GTK_REKEY
5445 	 */
5446 	struct driver_gtk_rekey {
5447 		const u8 *bssid;
5448 		const u8 *replay_ctr;
5449 	} driver_gtk_rekey;
5450 
5451 	/**
5452 	 * struct client_poll - Data for EVENT_DRIVER_CLIENT_POLL_OK events
5453 	 * @addr: station address
5454 	 */
5455 	struct client_poll {
5456 		u8 addr[ETH_ALEN];
5457 	} client_poll;
5458 
5459 	/**
5460 	 * struct eapol_tx_status
5461 	 * @dst: Original destination
5462 	 * @data: Data starting with IEEE 802.1X header (!)
5463 	 * @data_len: Length of data
5464 	 * @ack: Indicates ack or lost frame
5465 	 *
5466 	 * This corresponds to hapd_send_eapol if the frame sent
5467 	 * there isn't just reported as EVENT_TX_STATUS.
5468 	 */
5469 	struct eapol_tx_status {
5470 		const u8 *dst;
5471 		const u8 *data;
5472 		int data_len;
5473 		int ack;
5474 	} eapol_tx_status;
5475 
5476 	/**
5477 	 * struct ch_switch
5478 	 * @freq: Frequency of new channel in MHz
5479 	 * @ht_enabled: Whether this is an HT channel
5480 	 * @ch_offset: Secondary channel offset
5481 	 * @ch_width: Channel width
5482 	 * @cf1: Center frequency 1
5483 	 * @cf2: Center frequency 2
5484 	 */
5485 	struct ch_switch {
5486 		int freq;
5487 		int ht_enabled;
5488 		int ch_offset;
5489 		enum chan_width ch_width;
5490 		int cf1;
5491 		int cf2;
5492 	} ch_switch;
5493 
5494 	/**
5495 	 * struct connect_failed - Data for EVENT_CONNECT_FAILED_REASON
5496 	 * @addr: Remote client address
5497 	 * @code: Reason code for connection failure
5498 	 */
5499 	struct connect_failed_reason {
5500 		u8 addr[ETH_ALEN];
5501 		enum {
5502 			MAX_CLIENT_REACHED,
5503 			BLOCKED_CLIENT
5504 		} code;
5505 	} connect_failed_reason;
5506 
5507 	/**
5508 	 * struct dfs_event - Data for radar detected events
5509 	 * @freq: Frequency of the channel in MHz
5510 	 */
5511 	struct dfs_event {
5512 		int freq;
5513 		int ht_enabled;
5514 		int chan_offset;
5515 		enum chan_width chan_width;
5516 		int cf1;
5517 		int cf2;
5518 	} dfs_event;
5519 
5520 	/**
5521 	 * survey_results - Survey result data for EVENT_SURVEY
5522 	 * @freq_filter: Requested frequency survey filter, 0 if request
5523 	 *	was for all survey data
5524 	 * @survey_list: Linked list of survey data (struct freq_survey)
5525 	 */
5526 	struct survey_results {
5527 		unsigned int freq_filter;
5528 		struct dl_list survey_list; /* struct freq_survey */
5529 	} survey_results;
5530 
5531 	/**
5532 	 * channel_list_changed - Data for EVENT_CHANNEL_LIST_CHANGED
5533 	 * @initiator: Initiator of the regulatory change
5534 	 * @type: Regulatory change type
5535 	 * @alpha2: Country code (or "" if not available)
5536 	 */
5537 	struct channel_list_changed {
5538 		enum reg_change_initiator initiator;
5539 		enum reg_type type;
5540 		char alpha2[3];
5541 	} channel_list_changed;
5542 
5543 	/**
5544 	 * freq_range - List of frequency ranges
5545 	 *
5546 	 * This is used as the data with EVENT_AVOID_FREQUENCIES.
5547 	 */
5548 	struct wpa_freq_range_list freq_range;
5549 
5550 	/**
5551 	 * struct mesh_peer
5552 	 *
5553 	 * @peer: Peer address
5554 	 * @ies: Beacon IEs
5555 	 * @ie_len: Length of @ies
5556 	 *
5557 	 * Notification of new candidate mesh peer.
5558 	 */
5559 	struct mesh_peer {
5560 		const u8 *peer;
5561 		const u8 *ies;
5562 		size_t ie_len;
5563 	} mesh_peer;
5564 
5565 	/**
5566 	 * struct acs_selected_channels - Data for EVENT_ACS_CHANNEL_SELECTED
5567 	 * @pri_channel: Selected primary channel
5568 	 * @sec_channel: Selected secondary channel
5569 	 * @vht_seg0_center_ch: VHT mode Segment0 center channel
5570 	 * @vht_seg1_center_ch: VHT mode Segment1 center channel
5571 	 * @ch_width: Selected Channel width by driver. Driver may choose to
5572 	 *	change hostapd configured ACS channel width due driver internal
5573 	 *	channel restrictions.
5574 	 * hw_mode: Selected band (used with hw_mode=any)
5575 	 */
5576 	struct acs_selected_channels {
5577 		u8 pri_channel;
5578 		u8 sec_channel;
5579 		u8 vht_seg0_center_ch;
5580 		u8 vht_seg1_center_ch;
5581 		u16 ch_width;
5582 		enum hostapd_hw_mode hw_mode;
5583 	} acs_selected_channels;
5584 
5585 	/**
5586 	 * struct p2p_lo_stop - Reason code for P2P Listen offload stop event
5587 	 * @reason_code: Reason for stopping offload
5588 	 *	P2P_LO_STOPPED_REASON_COMPLETE: Listen offload finished as
5589 	 *	scheduled.
5590 	 *	P2P_LO_STOPPED_REASON_RECV_STOP_CMD: Host requested offload to
5591 	 *	be stopped.
5592 	 *	P2P_LO_STOPPED_REASON_INVALID_PARAM: Invalid listen offload
5593 	 *	parameters.
5594 	 *	P2P_LO_STOPPED_REASON_NOT_SUPPORTED: Listen offload not
5595 	 *	supported by device.
5596 	 */
5597 	struct p2p_lo_stop {
5598 		enum {
5599 			P2P_LO_STOPPED_REASON_COMPLETE = 0,
5600 			P2P_LO_STOPPED_REASON_RECV_STOP_CMD,
5601 			P2P_LO_STOPPED_REASON_INVALID_PARAM,
5602 			P2P_LO_STOPPED_REASON_NOT_SUPPORTED,
5603 		} reason_code;
5604 	} p2p_lo_stop;
5605 
5606 	/* For EVENT_EXTERNAL_AUTH */
5607 	struct external_auth external_auth;
5608 
5609 	/**
5610 	 * struct sta_opmode - Station's operation mode change event
5611 	 * @addr: The station MAC address
5612 	 * @smps_mode: SMPS mode of the station
5613 	 * @chan_width: Channel width of the station
5614 	 * @rx_nss: RX_NSS of the station
5615 	 *
5616 	 * This is used as data with EVENT_STATION_OPMODE_CHANGED.
5617 	 */
5618 	struct sta_opmode {
5619 		const u8 *addr;
5620 		enum smps_mode smps_mode;
5621 		enum chan_width chan_width;
5622 		u8 rx_nss;
5623 	} sta_opmode;
5624 
5625 	/**
5626 	 * struct wds_sta_interface - Data for EVENT_WDS_STA_INTERFACE_STATUS.
5627 	 */
5628 	struct wds_sta_interface {
5629 		const u8 *sta_addr;
5630 		const char *ifname;
5631 		enum {
5632 			INTERFACE_ADDED,
5633 			INTERFACE_REMOVED
5634 		} istatus;
5635 	} wds_sta_interface;
5636 
5637 	/**
5638 	 * struct update_dh - Data for EVENT_UPDATE_DH
5639 	 */
5640 	struct update_dh {
5641 		const u8 *peer;
5642 		const u8 *ie;
5643 		size_t ie_len;
5644 	} update_dh;
5645 };
5646 
5647 /**
5648  * wpa_supplicant_event - Report a driver event for wpa_supplicant
5649  * @ctx: Context pointer (wpa_s); this is the ctx variable registered
5650  *	with struct wpa_driver_ops::init()
5651  * @event: event type (defined above)
5652  * @data: possible extra data for the event
5653  *
5654  * Driver wrapper code should call this function whenever an event is received
5655  * from the driver.
5656  */
5657 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
5658 			  union wpa_event_data *data);
5659 
5660 /**
5661  * wpa_supplicant_event_global - Report a driver event for wpa_supplicant
5662  * @ctx: Context pointer (wpa_s); this is the ctx variable registered
5663  *	with struct wpa_driver_ops::init()
5664  * @event: event type (defined above)
5665  * @data: possible extra data for the event
5666  *
5667  * Same as wpa_supplicant_event(), but we search for the interface in
5668  * wpa_global.
5669  */
5670 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5671 				 union wpa_event_data *data);
5672 
5673 /*
5674  * The following inline functions are provided for convenience to simplify
5675  * event indication for some of the common events.
5676  */
5677 
drv_event_assoc(void * ctx,const u8 * addr,const u8 * ie,size_t ielen,int reassoc)5678 static inline void drv_event_assoc(void *ctx, const u8 *addr, const u8 *ie,
5679 				   size_t ielen, int reassoc)
5680 {
5681 	union wpa_event_data event;
5682 	os_memset(&event, 0, sizeof(event));
5683 	event.assoc_info.reassoc = reassoc;
5684 	event.assoc_info.req_ies = ie;
5685 	event.assoc_info.req_ies_len = ielen;
5686 	event.assoc_info.addr = addr;
5687 	wpa_supplicant_event(ctx, EVENT_ASSOC, &event);
5688 }
5689 
drv_event_disassoc(void * ctx,const u8 * addr)5690 static inline void drv_event_disassoc(void *ctx, const u8 *addr)
5691 {
5692 	union wpa_event_data event;
5693 	os_memset(&event, 0, sizeof(event));
5694 	event.disassoc_info.addr = addr;
5695 	wpa_supplicant_event(ctx, EVENT_DISASSOC, &event);
5696 }
5697 
drv_event_eapol_rx(void * ctx,const u8 * src,const u8 * data,size_t data_len)5698 static inline void drv_event_eapol_rx(void *ctx, const u8 *src, const u8 *data,
5699 				      size_t data_len)
5700 {
5701 	union wpa_event_data event;
5702 	os_memset(&event, 0, sizeof(event));
5703 	event.eapol_rx.src = src;
5704 	event.eapol_rx.data = data;
5705 	event.eapol_rx.data_len = data_len;
5706 	wpa_supplicant_event(ctx, EVENT_EAPOL_RX, &event);
5707 }
5708 
5709 /* driver_common.c */
5710 void wpa_scan_results_free(struct wpa_scan_results *res);
5711 
5712 /* Convert wpa_event_type to a string for logging */
5713 const char * event_to_string(enum wpa_event_type event);
5714 
5715 /* Convert chan_width to a string for logging and control interfaces */
5716 const char * channel_width_to_string(enum chan_width width);
5717 
5718 int channel_width_to_int(enum chan_width width);
5719 
5720 int ht_supported(const struct hostapd_hw_modes *mode);
5721 int vht_supported(const struct hostapd_hw_modes *mode);
5722 
5723 struct wowlan_triggers *
5724 wpa_get_wowlan_triggers(const char *wowlan_triggers,
5725 			const struct wpa_driver_capa *capa);
5726 /* Convert driver flag to string */
5727 const char * driver_flag_to_string(u64 flag);
5728 
5729 /* NULL terminated array of linked in driver wrappers */
5730 extern const struct wpa_driver_ops *const wpa_drivers[];
5731 
5732 
5733 /* Available drivers */
5734 
5735 #ifdef CONFIG_DRIVER_WEXT
5736 extern const struct wpa_driver_ops wpa_driver_wext_ops; /* driver_wext.c */
5737 #endif /* CONFIG_DRIVER_WEXT */
5738 #ifdef CONFIG_DRIVER_NL80211
5739 /* driver_nl80211.c */
5740 extern const struct wpa_driver_ops wpa_driver_nl80211_ops;
5741 #endif /* CONFIG_DRIVER_NL80211 */
5742 #ifdef CONFIG_DRIVER_HOSTAP
5743 extern const struct wpa_driver_ops wpa_driver_hostap_ops; /* driver_hostap.c */
5744 #endif /* CONFIG_DRIVER_HOSTAP */
5745 #ifdef CONFIG_DRIVER_BSD
5746 extern const struct wpa_driver_ops wpa_driver_bsd_ops; /* driver_bsd.c */
5747 #endif /* CONFIG_DRIVER_BSD */
5748 #ifdef CONFIG_DRIVER_OPENBSD
5749 /* driver_openbsd.c */
5750 extern const struct wpa_driver_ops wpa_driver_openbsd_ops;
5751 #endif /* CONFIG_DRIVER_OPENBSD */
5752 #ifdef CONFIG_DRIVER_NDIS
5753 extern struct wpa_driver_ops wpa_driver_ndis_ops; /* driver_ndis.c */
5754 #endif /* CONFIG_DRIVER_NDIS */
5755 #ifdef CONFIG_DRIVER_WIRED
5756 extern const struct wpa_driver_ops wpa_driver_wired_ops; /* driver_wired.c */
5757 #endif /* CONFIG_DRIVER_WIRED */
5758 #ifdef CONFIG_DRIVER_MACSEC_QCA
5759 /* driver_macsec_qca.c */
5760 extern const struct wpa_driver_ops wpa_driver_macsec_qca_ops;
5761 #endif /* CONFIG_DRIVER_MACSEC_QCA */
5762 #ifdef CONFIG_DRIVER_MACSEC_LINUX
5763 /* driver_macsec_linux.c */
5764 extern const struct wpa_driver_ops wpa_driver_macsec_linux_ops;
5765 #endif /* CONFIG_DRIVER_MACSEC_LINUX */
5766 #ifdef CONFIG_DRIVER_ROBOSWITCH
5767 /* driver_roboswitch.c */
5768 extern const struct wpa_driver_ops wpa_driver_roboswitch_ops;
5769 #endif /* CONFIG_DRIVER_ROBOSWITCH */
5770 #ifdef CONFIG_DRIVER_ATHEROS
5771 /* driver_atheros.c */
5772 extern const struct wpa_driver_ops wpa_driver_atheros_ops;
5773 #endif /* CONFIG_DRIVER_ATHEROS */
5774 #ifdef CONFIG_DRIVER_NONE
5775 extern const struct wpa_driver_ops wpa_driver_none_ops; /* driver_none.c */
5776 #endif /* CONFIG_DRIVER_NONE */
5777 
5778 #endif /* DRIVER_H */
5779